Alert archive / California / Heat Advisories in 2025
Heat Advisory 2, NWS Eureka, CA
NWS Eureka, CA issued this heat advisory at Jul 9, 2025, 12:36 PM PDT for 5 counties in California. It took effect at Jul 11, 2025, 11:00 AM PDT. It was in force for 4 days.
The area
The counties it named.
The facts
- Issued
- Jul 9, 2025, 12:36 PM PDT (19:36 UTC)
- In effect from
- Jul 11, 2025, 11:00 AM PDT
- Expired
- Jul 14, 2025, 11:00 PM PDT
- In force
- 4 days
- Issued by
- NWS Eureka, CA
Counties Del Norte County, CA, Humboldt County, CA, Lake County, CA, Mendocino County, CA, Trinity County, CA
The radar
The Eureka (Bunker Hill) radar (KBHX), 75 km from the middle of the area, began a volume at 19:35 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The nearest sounding before it
Oakland, CA (KOAK), launched 12:00Z, 7.6 hours before the alert went out and 308 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 715 m above ground
- 0-6 km bulk shear
- 41 kt
- 0-1 km storm-relative helicity
- 10 m²/s²
- 0-3 km storm-relative helicity
- 46 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
502 WWUS76 KEKA 091936 NPWEKA URGENT - WEATHER MESSAGE National Weather Service Eureka CA 1236 PM PDT Wed Jul 9 2025 CAZ107-108-111-114-115-100345- /O.NEW.KEKA.HT.Y.0002.250711T1800Z-250714T0600Z/ Northern Trinity-Southern Trinity-Northeastern Mendocino Interior- Northern Lake-Southern Lake- Including Hyampom, Knobcone Camp, Middletown, Forest Glen, Hayfork, Ruth, Hidden Valley Lake, Clearlake, Weaverville, Clearlake Park, Junction City, Big Bar, Zenia, Gravelly Valley Airport, Lakeport, Douglas City, Peanut, Finley, Trinity Center, Covelo, Helena, Del Loma, and Carrville 1236 PM PDT Wed Jul 9 2025 ...HEAT ADVISORY IN EFFECT FROM 11 AM FRIDAY TO 11 PM PDT SUNDAY... * WHAT...Moderate to locally major heat heat risk is expected with highs between 100 and 105 in the valleys. * WHERE...Trinity County, Lake County, and Northeastern Mendocino Interior. * WHEN...From 11 AM Friday to 11 PM PDT Sunday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses. * ADDITIONAL DETAILS...Overnight lows around 60 will provide some relief in the valleys, but higher terrain may see lows remain in the 70s. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. && $$ CAZ110-113-100345- /O.NEW.KEKA.HT.Y.0002.250711T1800Z-250713T0600Z/ Northwestern Mendocino Interior-Southeastern Mendocino Interior- Including Legget, Hopland, Ukiah, Calpella, Potter Valley, Talmage, Willits, Redwood Valley, and Laytonville 1236 PM PDT Wed Jul 9 2025 ...HEAT ADVISORY IN EFFECT FROM 11 AM FRIDAY TO 11 PM PDT SATURDAY... * WHAT...Moderate heat risk is expected with highs from 100 to 105 each afternoon. * WHERE...Northwestern Mendocino Interior and Southeastern Mendocino Interior. * WHEN...From 11 AM Friday to 11 PM PDT Saturday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses. * ADDITIONAL DETAILS...Overnight lows around 60 will provide some relief in the valleys, but higher terrain may see lows remain in the 70s. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. && $$ For hazard areas see https://www.wrh.noaa.gov/map/?wfo=eka MKK
22 follow-up statements
983 WWUS76 KEKA 091959 NPWEKA URGENT - WEATHER MESSAGE National Weather Service Eureka CA 1259 PM PDT Wed Jul 9 2025 CAZ107-108-111-114-115-100400- /O.CON.KEKA.HT.Y.0002.250711T1800Z-250714T0600Z/ Northern Trinity-Southern Trinity-Northeastern Mendocino Interior- Northern Lake-Southern Lake- Including Hyampom, Knobcone Camp, Middletown, Forest Glen, Hayfork, Ruth, Hidden Valley Lake, Clearlake, Weaverville, Clearlake Park, Junction City, Big Bar, Zenia, Gravelly Valley Airport, Lakeport, Douglas City, Peanut, Finley, Trinity Center, Covelo, Helena, Del Loma, and Carrville 1259 PM PDT Wed Jul 9 2025 ...HEAT ADVISORY REMAINS IN EFFECT FROM 11 AM FRIDAY TO 11 PM PDT SUNDAY... * WHAT...Moderate to locally major heat heat risk is expected with highs between 100 and 105 in the valleys. * WHERE...Trinity County, Lake County, and Northeastern Mendocino Interior. * WHEN...From 11 AM Friday to 11 PM PDT Sunday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses. * ADDITIONAL DETAILS...Overnight lows around 60 will provide some relief in the valleys, but higher terrain may see lows remain in the 70s. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. && $$ CAZ110-113-100400- /O.CON.KEKA.HT.Y.0002.250711T1800Z-250713T0600Z/ Northwestern Mendocino Interior-Southeastern Mendocino Interior- Including Legget, Hopland, Ukiah, Calpella, Potter Valley, Talmage, Willits, Redwood Valley, and Laytonville 1259 PM PDT Wed Jul 9 2025 ...HEAT ADVISORY REMAINS IN EFFECT FROM 11 AM FRIDAY TO 11 PM PDT SATURDAY... * WHAT...Moderate heat risk is expected with highs from 100 to 105 each afternoon. * WHERE...Northwestern Mendocino Interior and Southeastern Mendocino Interior. * WHEN...From 11 AM Friday to 11 PM PDT Saturday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses. * ADDITIONAL DETAILS...Overnight lows around 60 will provide some relief in the valleys, but higher terrain may see lows remain in the 70s. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. && $$ CAZ102-105-106-100400- /O.NEW.KEKA.XH.A.0001.250712T0600Z-250714T0600Z/ Del Norte Interior-Northern Humboldt Interior-Southern Humboldt Interior- 1259 PM PDT Wed Jul 9 2025 ...EXTREME HEAT WATCH IN EFFECT FROM FRIDAY EVENING THROUGH SUNDAY EVENING... * WHAT...Moderate to major heat risk is possible with highs of 100 to 105. * WHERE...Humboldt Interior, and Del Norte Interior. * WHEN...From Friday evening through Sunday evening. * IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events. * ADDITIONAL DETAILS...The warmest locations will be in eastern Del Norte and Humboldt counties. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. && $$ For hazard areas see https://www.wrh.noaa.gov/map/?wfo=eka MKK
082 WWUS76 KEKA 092045 NPWEKA URGENT - WEATHER MESSAGE National Weather Service Eureka CA 145 PM PDT Wed Jul 9 2025 CAZ107-108-111-114-115-100445- /O.CON.KEKA.HT.Y.0002.250711T1800Z-250714T0600Z/ Northern Trinity-Southern Trinity-Northeastern Mendocino Interior- Northern Lake-Southern Lake- Including Hyampom, Knobcone Camp, Middletown, Forest Glen, Hayfork, Ruth, Hidden Valley Lake, Clearlake, Weaverville, Clearlake Park, Junction City, Big Bar, Zenia, Gravelly Valley Airport, Lakeport, Douglas City, Peanut, Finley, Trinity Center, Covelo, Helena, Del Loma, and Carrville 145 PM PDT Wed Jul 9 2025 ...HEAT ADVISORY REMAINS IN EFFECT FROM 11 AM FRIDAY TO 11 PM PDT SUNDAY... * WHAT...Moderate to locally major heat heat risk is expected with highs between 100 and 105 in the valleys. * WHERE...Trinity County, Lake County, and Northeastern Mendocino Interior. * WHEN...From 11 AM Friday to 11 PM PDT Sunday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses. * ADDITIONAL DETAILS...Overnight lows around 60 will provide some relief in the valleys, but higher terrain may see lows remain in the 70s. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. && $$ CAZ110-113-100445- /O.CON.KEKA.HT.Y.0002.250711T1800Z-250713T0600Z/ Northwestern Mendocino Interior-Southeastern Mendocino Interior- Including Legget, Hopland, Ukiah, Calpella, Potter Valley, Talmage, Willits, Redwood Valley, and Laytonville 145 PM PDT Wed Jul 9 2025 ...HEAT ADVISORY REMAINS IN EFFECT FROM 11 AM FRIDAY TO 11 PM PDT SATURDAY... * WHAT...Moderate heat risk is expected with highs from 100 to 105 each afternoon. * WHERE...Northwestern Mendocino Interior and Southeastern Mendocino Interior. * WHEN...From 11 AM Friday to 11 PM PDT Saturday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses. * ADDITIONAL DETAILS...Overnight lows around 60 will provide some relief in the valleys, but higher terrain may see lows remain in the 70s. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. && $$ CAZ102-105-106-100445- /O.EXT.KEKA.XH.A.0001.250712T1800Z-250714T0600Z/ Del Norte Interior-Northern Humboldt Interior-Southern Humboldt Interior- 145 PM PDT Wed Jul 9 2025 ...EXTREME HEAT WATCH NOW IN EFFECT FROM SATURDAY MORNING THROUGH SUNDAY EVENING... * WHAT...Moderate to major heat risk is possible with highs of 100 to 105. * WHERE...Humboldt Interior, and Del Norte Interior. * WHEN...From Saturday morning through Sunday evening. * IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events. * ADDITIONAL DETAILS...The warmest locations will be in eastern Del Norte and Humboldt counties. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. && $$ For hazard areas see https://www.wrh.noaa.gov/map/?wfo=eka MKK
414 WWUS76 KEKA 100447 NPWEKA URGENT - WEATHER MESSAGE National Weather Service Eureka CA 947 PM PDT Wed Jul 9 2025 CAZ107-108-111-114-115-101300- /O.CON.KEKA.HT.Y.0002.250711T1800Z-250714T0600Z/ Northern Trinity-Southern Trinity-Northeastern Mendocino Interior- Northern Lake-Southern Lake- Including Clearlake, Douglas City, Covelo, Ruth, Knobcone Camp, Helena, Big Bar, Hayfork, Junction City, Clearlake Park, Lakeport, Del Loma, Middletown, Gravelly Valley Airport, Zenia, Peanut, Forest Glen, Hidden Valley Lake, Finley, Carrville, Hyampom, Trinity Center, and Weaverville 947 PM PDT Wed Jul 9 2025 ...HEAT ADVISORY REMAINS IN EFFECT FROM 11 AM FRIDAY TO 11 PM PDT SUNDAY... * WHAT...Heat index values up to 101 expected. * WHERE...Trinity County, Lake County, and Northeastern Mendocino Interior. * WHEN...From 11 AM Friday to 11 PM PDT Sunday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. && $$ CAZ110-113-101300- /O.CON.KEKA.HT.Y.0002.250711T1800Z-250713T0600Z/ Northwestern Mendocino Interior-Southeastern Mendocino Interior- Including Laytonville, Calpella, Hopland, Potter Valley, Redwood Valley, Talmage, Legget, Willits, and Ukiah 947 PM PDT Wed Jul 9 2025 ...HEAT ADVISORY REMAINS IN EFFECT FROM 11 AM FRIDAY TO 11 PM PDT SATURDAY... * WHAT...Moderate heat risk is expected with highs from 100 to 105 each afternoon. * WHERE...Northwestern Mendocino Interior and Southeastern Mendocino Interior. * WHEN...From 11 AM Friday to 11 PM PDT Saturday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. && $$ CAZ102-105-106-101300- /O.CON.KEKA.XH.A.0001.250712T1800Z-250714T0600Z/ Del Norte Interior-Northern Humboldt Interior-Southern Humboldt Interior- 947 PM PDT Wed Jul 9 2025 ...EXTREME HEAT WATCH REMAINS IN EFFECT FROM SATURDAY MORNING THROUGH SUNDAY EVENING... * WHAT...Moderate to major heat risk is possible with highs of 100 to 105. * WHERE...Humboldt Interior, and Del Norte Interior. * WHEN...From Saturday morning through Sunday evening. * IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. && $$ For hazard areas see https://www.wrh.noaa.gov/map/?wfo=eka DS
966 WWUS76 KEKA 101004 NPWEKA URGENT - WEATHER MESSAGE National Weather Service Eureka CA 304 AM PDT Thu Jul 10 2025 CAZ107-108-111-114-115-101815- /O.CON.KEKA.HT.Y.0002.250711T1800Z-250714T0600Z/ Northern Trinity-Southern Trinity-Northeastern Mendocino Interior- Northern Lake-Southern Lake- Including Forest Glen, Douglas City, Hidden Valley Lake, Trinity Center, Peanut, Helena, Clearlake, Finley, Hyampom, Zenia, Carrville, Junction City, Ruth, Del Loma, Clearlake Park, Covelo, Lakeport, Hayfork, Knobcone Camp, Weaverville, Middletown, Gravelly Valley Airport, and Big Bar 304 AM PDT Thu Jul 10 2025 ...HEAT ADVISORY REMAINS IN EFFECT FROM 11 AM FRIDAY TO 11 PM PDT SUNDAY... * WHAT...Moderate to locally major heat heat risk is expected with highs between 100 and 105 in the valleys. * WHERE...Trinity County, Lake County, and Northeastern Mendocino Interior. * WHEN...From 11 AM Friday to 11 PM PDT Sunday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses. * ADDITIONAL DETAILS...Overnight lows around 60 will provide some relief in the valleys, but higher terrain may see lows remain in the 70s. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. && $$ CAZ110-113-101815- /O.CON.KEKA.HT.Y.0002.250711T1800Z-250713T0600Z/ Northwestern Mendocino Interior-Southeastern Mendocino Interior- Including Talmage, Potter Valley, Calpella, Legget, Willits, Hopland, Ukiah, Laytonville, and Redwood Valley 304 AM PDT Thu Jul 10 2025 ...HEAT ADVISORY REMAINS IN EFFECT FROM 11 AM FRIDAY TO 11 PM PDT SATURDAY... * WHAT...Moderate heat risk is expected with highs from 100 to 105 each afternoon. * WHERE...Northwestern Mendocino Interior and Southeastern Mendocino Interior. * WHEN...From 11 AM Friday to 11 PM PDT Saturday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses. * ADDITIONAL DETAILS...Overnight lows around 60 will provide some relief in the valleys, but higher terrain may see lows remain in the 70s. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. && $$ CAZ102-105-106-101815- /O.CON.KEKA.XH.A.0001.250712T1800Z-250714T0600Z/ Del Norte Interior-Northern Humboldt Interior-Southern Humboldt Interior- 304 AM PDT Thu Jul 10 2025 ...EXTREME HEAT WATCH REMAINS IN EFFECT FROM SATURDAY MORNING THROUGH SUNDAY EVENING... * WHAT...Moderate to major heat risk is possible with highs of 100 to 105. * WHERE...Humboldt Interior, and Del Norte Interior. * WHEN...From Saturday morning through Sunday evening. * IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events. * ADDITIONAL DETAILS...The warmest locations will be in eastern Del Norte and Humboldt counties. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. && $$ For hazard areas see https://www.wrh.noaa.gov/map/?wfo=eka EYS
186 WWUS76 KEKA 101815 NPWEKA URGENT - WEATHER MESSAGE National Weather Service Eureka CA 1115 AM PDT Thu Jul 10 2025 CAZ107-108-111-114-115-110215- /O.CON.KEKA.HT.Y.0002.250711T1800Z-250714T0600Z/ Northern Trinity-Southern Trinity-Northeastern Mendocino Interior- Northern Lake-Southern Lake- Including Weaverville, Junction City, Finley, Peanut, Douglas City, Trinity Center, Lakeport, Hidden Valley Lake, Knobcone Camp, Ruth, Forest Glen, Clearlake Park, Covelo, Del Loma, Zenia, Hayfork, Helena, Middletown, Big Bar, Carrville, Gravelly Valley Airport, Clearlake, and Hyampom 1115 AM PDT Thu Jul 10 2025 ...HEAT ADVISORY REMAINS IN EFFECT FROM 11 AM FRIDAY TO 11 PM PDT SUNDAY... * WHAT...Moderate to locally major heat heat risk is expected with highs between 100 and 105 in the valleys. * WHERE...Trinity County, Lake County, and Northeastern Mendocino Interior. * WHEN...From 11 AM Friday to 11 PM PDT Sunday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses. * ADDITIONAL DETAILS...Overnight lows around 60 will provide some relief in the valleys, but higher terrain may see lows remain in the 70s. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. && $$ CAZ110-113-110215- /O.CON.KEKA.HT.Y.0002.250711T1800Z-250713T0600Z/ Northwestern Mendocino Interior-Southeastern Mendocino Interior- Including Potter Valley, Laytonville, Hopland, Talmage, Willits, Calpella, Legget, Ukiah, and Redwood Valley 1115 AM PDT Thu Jul 10 2025 ...HEAT ADVISORY REMAINS IN EFFECT FROM 11 AM FRIDAY TO 11 PM PDT SATURDAY... * WHAT...Moderate heat risk is expected with highs from 100 to 105 each afternoon. * WHERE...Northwestern Mendocino Interior and Southeastern Mendocino Interior. * WHEN...From 11 AM Friday to 11 PM PDT Saturday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses. * ADDITIONAL DETAILS...Overnight lows around 60 will provide some relief in the valleys, but higher terrain may see lows remain in the 70s. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. && $$ CAZ102-105-106-110215- /O.CON.KEKA.XH.A.0001.250712T1800Z-250714T0600Z/ Del Norte Interior-Northern Humboldt Interior-Southern Humboldt Interior- 1115 AM PDT Thu Jul 10 2025 ...EXTREME HEAT WATCH REMAINS IN EFFECT FROM SATURDAY MORNING THROUGH SUNDAY EVENING... * WHAT...Moderate to major heat risk is possible with highs of 100 to 105. * WHERE...Humboldt Interior, and Del Norte Interior. * WHEN...From Saturday morning through Sunday evening. * IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events. * ADDITIONAL DETAILS...The warmest locations will be in eastern Del Norte and Humboldt counties. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. && $$ For hazard areas see https://www.wrh.noaa.gov/map/?wfo=eka MKK
717 WWUS76 KEKA 102100 NPWEKA URGENT - WEATHER MESSAGE National Weather Service Eureka CA 200 PM PDT Thu Jul 10 2025 CAZ107-108-110500- /O.UPG.KEKA.HT.Y.0002.250711T1800Z-250714T0600Z/ /O.NEW.KEKA.XH.W.0001.250711T1800Z-250715T0600Z/ Northern Trinity-Southern Trinity- 200 PM PDT Thu Jul 10 2025 ...EXTREME HEAT WARNING IN EFFECT FROM 11 AM FRIDAY TO 11 PM PDT MONDAY... * WHAT...Dangerously hot conditions with high temperatures above 105 in the lower elevation valley locations expected through Monday. Moderate to locally extreme heat risk is expected. * WHERE...Trinity County. * WHEN...From 11 AM Friday to 11 PM PDT Monday. * IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events. * ADDITIONAL DETAILS...The valleys may see some relief overnight with lows in the 60s, but the mid slopes and ridges will likely stay in the 70s. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. && $$ CAZ102-105-106-110500- /O.UPG.KEKA.XH.A.0001.250712T1800Z-250714T0600Z/ /O.EXB.KEKA.HT.Y.0002.250712T1800Z-250714T0600Z/ Del Norte Interior-Northern Humboldt Interior-Southern Humboldt Interior- Including Gasquet, Hoopa, Benbow, Bridgeville, Dinsmore, Orleans, Weitchpec, Alderpoint, Garberville, and Willow Creek 200 PM PDT Thu Jul 10 2025 ...HEAT ADVISORY IN EFFECT FROM 11 AM SATURDAY TO 11 PM PDT SUNDAY... * WHAT...Moderate to major heat risk is possible with highs of 100 to 105. * WHERE...Humboldt Interior, and Del Norte Interior. * WHEN...From 11 AM Saturday to 11 PM PDT Sunday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses. * ADDITIONAL DETAILS...The warmest locations will be in eastern Del Norte and Humboldt counties. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. && $$ CAZ110-113-110500- /O.CON.KEKA.HT.Y.0002.250711T1800Z-250713T0600Z/ Northwestern Mendocino Interior-Southeastern Mendocino Interior- Including Potter Valley, Laytonville, Hopland, Talmage, Willits, Calpella, Legget, Ukiah, and Redwood Valley 200 PM PDT Thu Jul 10 2025 ...HEAT ADVISORY REMAINS IN EFFECT FROM 11 AM FRIDAY TO 11 PM PDT SATURDAY... * WHAT...Moderate heat risk is expected with highs from 100 to 105 each afternoon. * WHERE...Northwestern Mendocino Interior and Southeastern Mendocino Interior. * WHEN...From 11 AM Friday to 11 PM PDT Saturday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses. * ADDITIONAL DETAILS...Overnight lows around 60 will provide some relief in the valleys, but higher terrain may see lows remain in the 70s. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. && $$ CAZ111-114-115-110500- /O.CON.KEKA.HT.Y.0002.250711T1800Z-250714T0600Z/ Northeastern Mendocino Interior-Northern Lake-Southern Lake- Including Covelo, Middletown, Hidden Valley Lake, Knobcone Camp, Finley, Gravelly Valley Airport, Clearlake, Lakeport, and Clearlake Park 200 PM PDT Thu Jul 10 2025 ...HEAT ADVISORY REMAINS IN EFFECT FROM 11 AM FRIDAY TO 11 PM PDT SUNDAY... * WHAT...Moderate to locally major heat heat risk is expected with highs between 100 and 105 in the valleys. * WHERE...Lake County, and Northeastern Mendocino Interior. * WHEN...From 11 AM Friday to 11 PM PDT Sunday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses. * ADDITIONAL DETAILS...Overnight lows in the low 60s will provide some relief in the valleys, but higher terrain may see lows remain in the 70s. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. && $$ For hazard areas see https://www.wrh.noaa.gov/map/?wfo=eka MKK
611 WWUS76 KEKA 110446 NPWEKA URGENT - WEATHER MESSAGE National Weather Service Eureka CA 946 PM PDT Thu Jul 10 2025 CAZ107-108-111300- /O.CON.KEKA.XH.W.0001.250711T1800Z-250715T0600Z/ Northern Trinity-Southern Trinity- 946 PM PDT Thu Jul 10 2025 ...EXTREME HEAT WARNING REMAINS IN EFFECT FROM 11 AM FRIDAY TO 11 PM PDT MONDAY... * WHAT...Dangerously hot conditions with high temperatures above 105 in the lower elevation valley locations expected through Monday. Moderate to locally extreme heat risk is expected. * WHERE...Trinity County. * WHEN...From 11 AM Friday to 11 PM PDT Monday. * IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events. * ADDITIONAL DETAILS...The valleys may see some relief overnight with lows in the 60s, but the mid slopes and ridges will likely stay in the 70s. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. && $$ CAZ110-113-111300- /O.CON.KEKA.HT.Y.0002.250711T1800Z-250713T0600Z/ Northwestern Mendocino Interior-Southeastern Mendocino Interior- Including Potter Valley, Hopland, Redwood Valley, Calpella, Legget, Willits, Ukiah, Talmage, and Laytonville 946 PM PDT Thu Jul 10 2025 ...HEAT ADVISORY REMAINS IN EFFECT FROM 11 AM FRIDAY TO 11 PM PDT SATURDAY... * WHAT...Moderate heat risk is expected with highs from 100 to 105 each afternoon. * WHERE...Northwestern Mendocino Interior and Southeastern Mendocino Interior. * WHEN...From 11 AM Friday to 11 PM PDT Saturday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses. * ADDITIONAL DETAILS...Overnight lows around 60 will provide some relief in the valleys, but higher terrain may see lows remain in the 70s. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. && $$ CAZ111-114-115-111300- /O.CON.KEKA.HT.Y.0002.250711T1800Z-250714T0600Z/ Northeastern Mendocino Interior-Northern Lake-Southern Lake- Including Middletown, Hidden Valley Lake, Gravelly Valley Airport, Lakeport, Finley, Clearlake, Knobcone Camp, Clearlake Park, and Covelo 946 PM PDT Thu Jul 10 2025 ...HEAT ADVISORY REMAINS IN EFFECT FROM 11 AM FRIDAY TO 11 PM PDT SUNDAY... * WHAT...Moderate to locally major heat heat risk is expected with highs between 100 and 105 in the valleys. * WHERE...Lake County, and Northeastern Mendocino Interior. * WHEN...From 11 AM Friday to 11 PM PDT Sunday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses. * ADDITIONAL DETAILS...Overnight lows in the low 60s will provide some relief in the valleys, but higher terrain may see lows remain in the 70s. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. && $$ CAZ102-105-106-111300- /O.CON.KEKA.HT.Y.0002.250712T1800Z-250714T0600Z/ Del Norte Interior-Northern Humboldt Interior-Southern Humboldt Interior- Including Alderpoint, Gasquet, Orleans, Benbow, Garberville, Dinsmore, Willow Creek, Hoopa, Bridgeville, and Weitchpec 946 PM PDT Thu Jul 10 2025 ...HEAT ADVISORY REMAINS IN EFFECT FROM 11 AM SATURDAY TO 11 PM PDT SUNDAY... * WHAT...Moderate to major heat risk is possible with highs of 100 to 105. * WHERE...Humboldt Interior, and Del Norte Interior. * WHEN...From 11 AM Saturday to 11 PM PDT Sunday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses. * ADDITIONAL DETAILS...The warmest locations will be in eastern Del Norte and Humboldt counties. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. && $$ For hazard areas see https://www.wrh.noaa.gov/map/?wfo=eka DS
577 WWUS76 KEKA 110941 NPWEKA URGENT - WEATHER MESSAGE National Weather Service Eureka CA 241 AM PDT Fri Jul 11 2025 CAZ107-108-111745- /O.CON.KEKA.XH.W.0001.250711T1800Z-250715T0600Z/ Northern Trinity-Southern Trinity- 241 AM PDT Fri Jul 11 2025 ...EXTREME HEAT WARNING REMAINS IN EFFECT FROM 11 AM THIS MORNING TO 11 PM PDT MONDAY... * WHAT...Dangerously hot conditions with high temperatures above 105 in the lower elevation valley locations expected through Monday. Moderate to locally extreme heat risk is expected. * WHERE...Trinity County. * WHEN...From 11 AM this morning to 11 PM PDT Monday. * IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events. * ADDITIONAL DETAILS...The valleys may see some relief overnight with lows in the 60s, but the mid slopes and ridges will likely stay in the 70s. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. && $$ CAZ110-113-111745- /O.CON.KEKA.HT.Y.0002.250711T1800Z-250713T0600Z/ Northwestern Mendocino Interior-Southeastern Mendocino Interior- Including Hopland, Laytonville, Willits, Legget, Calpella, Redwood Valley, Potter Valley, Talmage, and Ukiah 241 AM PDT Fri Jul 11 2025 ...HEAT ADVISORY REMAINS IN EFFECT FROM 11 AM THIS MORNING TO 11 PM PDT SATURDAY... * WHAT...Moderate heat risk is expected with highs from 100 to 105 each afternoon. * WHERE...Northwestern Mendocino Interior and Southeastern Mendocino Interior. * WHEN...From 11 AM this morning to 11 PM PDT Saturday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses. * ADDITIONAL DETAILS...Overnight lows around 60 will provide some relief in the valleys, but higher terrain may see lows remain in the 70s. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. && $$ CAZ111-114-115-111745- /O.CON.KEKA.HT.Y.0002.250711T1800Z-250714T0600Z/ Northeastern Mendocino Interior-Northern Lake-Southern Lake- Including Finley, Middletown, Clearlake Park, Covelo, Hidden Valley Lake, Lakeport, Clearlake, Knobcone Camp, and Gravelly Valley Airport 241 AM PDT Fri Jul 11 2025 ...HEAT ADVISORY REMAINS IN EFFECT FROM 11 AM THIS MORNING TO 11 PM PDT SUNDAY... * WHAT...Moderate to locally major heat heat risk is expected with highs between 100 and 105 in the valleys. * WHERE...Lake County, and Northeastern Mendocino Interior. * WHEN...From 11 AM this morning to 11 PM PDT Sunday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses. * ADDITIONAL DETAILS...Overnight lows in the low 60s will provide some relief in the valleys, but higher terrain may see lows remain in the 70s. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. && $$ CAZ102-105-106-111745- /O.CON.KEKA.HT.Y.0002.250712T1800Z-250714T0600Z/ Del Norte Interior-Northern Humboldt Interior-Southern Humboldt Interior- Including Benbow, Garberville, Dinsmore, Alderpoint, Orleans, Hoopa, Gasquet, Weitchpec, Bridgeville, and Willow Creek 241 AM PDT Fri Jul 11 2025 ...HEAT ADVISORY REMAINS IN EFFECT FROM 11 AM SATURDAY TO 11 PM PDT SUNDAY... * WHAT...Moderate to major heat risk is possible with highs of 100 to 105. * WHERE...Humboldt Interior, and Del Norte Interior. * WHEN...From 11 AM Saturday to 11 PM PDT Sunday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses. * ADDITIONAL DETAILS...The warmest locations will be in eastern Del Norte and Humboldt counties. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. && $$ For hazard areas see https://www.wrh.noaa.gov/map/?wfo=eka EYS
034 WWUS76 KEKA 111735 NPWEKA URGENT - WEATHER MESSAGE National Weather Service Eureka CA 1035 AM PDT Fri Jul 11 2025 CAZ107-108-120145- /O.CON.KEKA.XH.W.0001.250711T1800Z-250715T0600Z/ Northern Trinity-Southern Trinity- 1035 AM PDT Fri Jul 11 2025 ...EXTREME HEAT WARNING REMAINS IN EFFECT UNTIL 11 PM PDT MONDAY... * WHAT...Dangerously hot conditions with high temperatures of 103 to 108. * WHERE...Trinity County. * WHEN...Until 11 PM PDT Monday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. && $$ CAZ110-113-120145- /O.CON.KEKA.HT.Y.0002.250711T1800Z-250713T0600Z/ Northwestern Mendocino Interior-Southeastern Mendocino Interior- Including Talmage, Hopland, Legget, Calpella, Potter Valley, Ukiah, Redwood Valley, Willits, and Laytonville 1035 AM PDT Fri Jul 11 2025 ...HEAT ADVISORY REMAINS IN EFFECT UNTIL 11 PM PDT SATURDAY... * WHAT...Moderate heat risk is expected with highs from 100 to 105 each afternoon. * WHERE...Northwestern Mendocino Interior and Southeastern Mendocino Interior. * WHEN...Until 11 PM PDT Saturday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses. * ADDITIONAL DETAILS...Overnight lows around 60 will provide some relief in the valleys, but higher terrain may see lows remain in the 70s. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. && $$ CAZ111-114-115-120145- /O.CON.KEKA.HT.Y.0002.250711T1800Z-250714T0600Z/ Northeastern Mendocino Interior-Northern Lake-Southern Lake- Including Knobcone Camp, Lakeport, Middletown, Hidden Valley Lake, Covelo, Clearlake, Clearlake Park, Finley, and Gravelly Valley Airport 1035 AM PDT Fri Jul 11 2025 ...HEAT ADVISORY REMAINS IN EFFECT UNTIL 11 PM PDT SUNDAY... * WHAT...Moderate to locally major heat heat risk is expected with highs between 100 and 105 in the valleys. * WHERE...Lake County, and Northeastern Mendocino Interior. * WHEN...Until 11 PM PDT Sunday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses. * ADDITIONAL DETAILS...Overnight lows in the low 60s will provide some relief in the valleys, but higher terrain may see lows remain in the 70s. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. && $$ CAZ102-105-106-120145- /O.CON.KEKA.HT.Y.0002.250712T1800Z-250714T0600Z/ Del Norte Interior-Northern Humboldt Interior-Southern Humboldt Interior- Including Willow Creek, Alderpoint, Gasquet, Garberville, Benbow, Bridgeville, Weitchpec, Hoopa, Orleans, and Dinsmore 1035 AM PDT Fri Jul 11 2025 ...HEAT ADVISORY REMAINS IN EFFECT FROM 11 AM SATURDAY TO 11 PM PDT SUNDAY... * WHAT...Moderate to major heat risk is possible with highs of 100 to 105. * WHERE...Humboldt Interior, and Del Norte Interior. * WHEN...From 11 AM Saturday to 11 PM PDT Sunday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses. * ADDITIONAL DETAILS...The warmest locations will be in eastern Del Norte and Humboldt counties. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. && $$ For hazard areas see https://www.wrh.noaa.gov/map/?wfo=eka JB
293 WWUS76 KEKA 111948 NPWEKA URGENT - WEATHER MESSAGE National Weather Service Eureka CA 1248 PM PDT Fri Jul 11 2025 CAZ102-105-120400- /O.UPG.KEKA.HT.Y.0002.250712T1800Z-250714T0600Z/ /O.EXB.KEKA.XH.W.0001.250712T1800Z-250715T0600Z/ Del Norte Interior-Northern Humboldt Interior- 1248 PM PDT Fri Jul 11 2025 ...EXTREME HEAT WARNING IN EFFECT FROM 11 AM SATURDAY TO 11 PM PDT MONDAY... * WHAT...Dangerously hot conditions with high temperatures of 102 to 108. * WHERE...Del Norte Interior and Northern Humboldt Interior. * WHEN...From 11 AM Saturday to 11 PM PDT Monday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events. * ADDITIONAL DETAILS...Overnight lows around 60 will provide some relief in the valleys, but higher terrain may see lows remain in the 70s. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. && $$ CAZ107-108-120400- /O.CON.KEKA.XH.W.0001.000000T0000Z-250715T0600Z/ Northern Trinity-Southern Trinity- 1248 PM PDT Fri Jul 11 2025 ...EXTREME HEAT WARNING REMAINS IN EFFECT UNTIL 11 PM PDT MONDAY... * WHAT...Dangerously hot conditions with high temperatures of 103 to 108. * WHERE...Trinity County. * WHEN...Until 11 PM PDT Monday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events. * ADDITIONAL DETAILS...Overnight lows around 60 will provide some relief in the valleys, but higher terrain may see lows remain in the 70s. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. && $$ CAZ110-113-120400- /O.EXT.KEKA.HT.Y.0002.000000T0000Z-250714T0600Z/ Northwestern Mendocino Interior-Southeastern Mendocino Interior- Including Talmage, Hopland, Legget, Calpella, Potter Valley, Ukiah, Redwood Valley, Willits, and Laytonville 1248 PM PDT Fri Jul 11 2025 ...HEAT ADVISORY NOW IN EFFECT UNTIL 11 PM PDT SUNDAY... * WHAT...Moderate heat risk is expected with highs from 100 to 105 each afternoon. * WHERE...Northwestern Mendocino Interior and Southeastern Mendocino Interior. * WHEN...Until 11 PM PDT Sunday. * IMPACTS...Hot temperatures may cause heat illnesses. * ADDITIONAL DETAILS...Overnight lows around 60 will provide some relief in the valleys, but higher terrain may see lows remain in the 70s. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. && $$ CAZ106-120400- /O.EXT.KEKA.HT.Y.0002.250712T1800Z-250715T0600Z/ Southern Humboldt Interior- Including Garberville, Alderpoint, Benbow, Bridgeville, and Dinsmore 1248 PM PDT Fri Jul 11 2025 ...HEAT ADVISORY NOW IN EFFECT FROM 11 AM SATURDAY TO 11 PM PDT MONDAY... * WHAT...Moderate to major heat risk is possible with highs of 100 to 105. * WHERE...Southern Humboldt Interior. * WHEN...From 11 AM Saturday to 11 PM PDT Monday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. && $$ CAZ111-114-115-120400- /O.CON.KEKA.HT.Y.0002.000000T0000Z-250714T0600Z/ Northeastern Mendocino Interior-Northern Lake-Southern Lake- Including Knobcone Camp, Lakeport, Middletown, Hidden Valley Lake, Covelo, Clearlake, Clearlake Park, Finley, and Gravelly Valley Airport 1248 PM PDT Fri Jul 11 2025 ...HEAT ADVISORY REMAINS IN EFFECT UNTIL 11 PM PDT SUNDAY... * WHAT...Moderate to locally major heat heat risk is expected with highs between 100 and 105 in the valleys. * WHERE...Lake County, and Northeastern Mendocino Interior. * WHEN...Until 11 PM PDT Sunday. * IMPACTS...Hot temperatures may cause heat illnesses. * ADDITIONAL DETAILS...Overnight lows in the low 60s will provide some relief in the valleys, but higher terrain may see lows remain in the 70s. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. && $$ For hazard areas see https://www.wrh.noaa.gov/map/?wfo=eka JB
992 WWUS76 KEKA 120348 NPWEKA URGENT - WEATHER MESSAGE National Weather Service Eureka CA 848 PM PDT Fri Jul 11 2025 CAZ107-108-121200- /O.CON.KEKA.XH.W.0001.000000T0000Z-250715T0600Z/ Northern Trinity-Southern Trinity- 848 PM PDT Fri Jul 11 2025 ...EXTREME HEAT WARNING REMAINS IN EFFECT UNTIL 11 PM PDT MONDAY... * WHAT...Dangerously hot conditions with heat index values up to 102. * WHERE...Trinity County. * WHEN...Until 11 PM PDT Monday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events. * ADDITIONAL DETAILS...Overnight lows around 60 will provide some relief in the valleys, but higher terrain may see lows remain in the 70s. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. && $$ CAZ102-105-121200- /O.CON.KEKA.XH.W.0001.250712T1800Z-250715T0600Z/ Del Norte Interior-Northern Humboldt Interior- 848 PM PDT Fri Jul 11 2025 ...EXTREME HEAT WARNING REMAINS IN EFFECT FROM 11 AM SATURDAY TO 11 PM PDT MONDAY... * WHAT...Dangerously hot conditions with heat index values up to 99 expected. * WHERE...Del Norte Interior and Northern Humboldt Interior. * WHEN...From 11 AM Saturday to 11 PM PDT Monday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events. * ADDITIONAL DETAILS...Overnight lows around 60 will provide some relief in the valleys, but higher terrain may see lows remain in the 70s. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. && $$ CAZ110-113-121200- /O.CON.KEKA.HT.Y.0002.000000T0000Z-250714T0600Z/ Northwestern Mendocino Interior-Southeastern Mendocino Interior- Including Calpella, Legget, Redwood Valley, Talmage, Potter Valley, Laytonville, Hopland, Ukiah, and Willits 848 PM PDT Fri Jul 11 2025 ...HEAT ADVISORY REMAINS IN EFFECT UNTIL 11 PM PDT SUNDAY... * WHAT...Moderate heat risk is expected with highs from 100 to 105 each afternoon. * WHERE...Northwestern Mendocino Interior and Southeastern Mendocino Interior. * WHEN...Until 11 PM PDT Sunday. * IMPACTS...Hot temperatures may cause heat illnesses. * ADDITIONAL DETAILS...Overnight lows around 60 will provide some relief in the valleys, but higher terrain may see lows remain in the 70s. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. && $$ CAZ111-114-115-121200- /O.CON.KEKA.HT.Y.0002.000000T0000Z-250714T0600Z/ Northeastern Mendocino Interior-Northern Lake-Southern Lake- Including Finley, Hidden Valley Lake, Clearlake Park, Knobcone Camp, Middletown, Lakeport, Clearlake, Covelo, and Gravelly Valley Airport 848 PM PDT Fri Jul 11 2025 ...HEAT ADVISORY REMAINS IN EFFECT UNTIL 11 PM PDT SUNDAY... * WHAT...Moderate to locally major heat heat risk is expected with highs between 100 and 105 in the valleys. * WHERE...Lake County, and Northeastern Mendocino Interior. * WHEN...Until 11 PM PDT Sunday. * IMPACTS...Hot temperatures may cause heat illnesses. * ADDITIONAL DETAILS...Overnight lows in the low 60s will provide some relief in the valleys, but higher terrain may see lows remain in the 70s. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. && $$ CAZ106-121200- /O.CON.KEKA.HT.Y.0002.250712T1800Z-250715T0600Z/ Southern Humboldt Interior- Including Garberville, Benbow, Alderpoint, Dinsmore, and Bridgeville 848 PM PDT Fri Jul 11 2025 ...HEAT ADVISORY REMAINS IN EFFECT FROM 11 AM SATURDAY TO 11 PM PDT MONDAY... * WHAT...Moderate to major heat risk is possible with highs of 100 to 105. * WHERE...Southern Humboldt Interior. * WHEN...From 11 AM Saturday to 11 PM PDT Monday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. && $$ For hazard areas see https://www.wrh.noaa.gov/map/?wfo=eka DS
570 WWUS76 KEKA 121004 NPWEKA URGENT - WEATHER MESSAGE National Weather Service Eureka CA 304 AM PDT Sat Jul 12 2025 CAZ107-108-121815- /O.CON.KEKA.XH.W.0001.000000T0000Z-250715T0600Z/ Northern Trinity-Southern Trinity- 304 AM PDT Sat Jul 12 2025 ...EXTREME HEAT WARNING REMAINS IN EFFECT UNTIL 11 PM PDT MONDAY... * WHAT...Dangerously hot conditions with high temperatures of 103 to 108. * WHERE...Trinity County. * WHEN...Until 11 PM PDT Monday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events. * ADDITIONAL DETAILS...Overnight lows around 60 will provide some relief in the valleys, but higher terrain may see lows remain in the 70s. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. && $$ CAZ102-105-121815- /O.CON.KEKA.XH.W.0001.250712T1800Z-250715T0600Z/ Del Norte Interior-Northern Humboldt Interior- 304 AM PDT Sat Jul 12 2025 ...EXTREME HEAT WARNING REMAINS IN EFFECT FROM 11 AM THIS MORNING TO 11 PM PDT MONDAY... * WHAT...Dangerously hot conditions with high temperatures of 102 to 108. * WHERE...Del Norte Interior and Northern Humboldt Interior. * WHEN...From 11 AM this morning to 11 PM PDT Monday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events. * ADDITIONAL DETAILS...Overnight lows around 60 will provide some relief in the valleys, but higher terrain may see lows remain in the 70s. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. && $$ CAZ110-113-121815- /O.CON.KEKA.HT.Y.0002.000000T0000Z-250714T0600Z/ Northwestern Mendocino Interior-Southeastern Mendocino Interior- Including Legget, Calpella, Potter Valley, Hopland, Laytonville, Redwood Valley, Ukiah, Talmage, and Willits 304 AM PDT Sat Jul 12 2025 ...HEAT ADVISORY REMAINS IN EFFECT UNTIL 11 PM PDT SUNDAY... * WHAT...Moderate heat risk is expected with highs from 100 to 105 each afternoon. * WHERE...Northwestern Mendocino Interior and Southeastern Mendocino Interior. * WHEN...Until 11 PM PDT Sunday. * IMPACTS...Hot temperatures may cause heat illnesses. * ADDITIONAL DETAILS...Overnight lows around 60 will provide some relief in the valleys, but higher terrain may see lows remain in the 70s. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. && $$ CAZ111-114-115-121815- /O.CON.KEKA.HT.Y.0002.000000T0000Z-250714T0600Z/ Northeastern Mendocino Interior-Northern Lake-Southern Lake- Including Clearlake, Knobcone Camp, Clearlake Park, Hidden Valley Lake, Covelo, Lakeport, Middletown, Gravelly Valley Airport, and Finley 304 AM PDT Sat Jul 12 2025 ...HEAT ADVISORY REMAINS IN EFFECT UNTIL 11 PM PDT SUNDAY... * WHAT...Moderate to locally major heat heat risk is expected with highs between 100 and 105 in the valleys. * WHERE...Lake County, and Northeastern Mendocino Interior. * WHEN...Until 11 PM PDT Sunday. * IMPACTS...Hot temperatures may cause heat illnesses. * ADDITIONAL DETAILS...Overnight lows in the low 60s will provide some relief in the valleys, but higher terrain may see lows remain in the 70s. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. && $$ CAZ106-121815- /O.CON.KEKA.HT.Y.0002.250712T1800Z-250715T0600Z/ Southern Humboldt Interior- Including Bridgeville, Alderpoint, Garberville, Dinsmore, and Benbow 304 AM PDT Sat Jul 12 2025 ...HEAT ADVISORY REMAINS IN EFFECT FROM 11 AM THIS MORNING TO 11 PM PDT MONDAY... * WHAT...Moderate to major heat risk is possible with highs of 100 to 105. * WHERE...Southern Humboldt Interior. * WHEN...From 11 AM this morning to 11 PM PDT Monday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. && $$ For hazard areas see https://www.wrh.noaa.gov/map/?wfo=eka EYS
238 WWUS76 KEKA 121039 NPWEKA URGENT - WEATHER MESSAGE National Weather Service Eureka CA 339 AM PDT Sat Jul 12 2025 CAZ107-108-121845- /O.CON.KEKA.XH.W.0001.000000T0000Z-250715T0600Z/ Northern Trinity-Southern Trinity- 339 AM PDT Sat Jul 12 2025 ...EXTREME HEAT WARNING REMAINS IN EFFECT UNTIL 11 PM PDT MONDAY... * WHAT...Dangerously hot conditions with high temperatures of 103 to 108. * WHERE...Trinity County. * WHEN...Until 11 PM PDT Monday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events. * ADDITIONAL DETAILS...Overnight lows around 60 will provide some relief in the valleys, but higher terrain may see lows remain in the 70s. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. && $$ CAZ102-105-121845- /O.CON.KEKA.XH.W.0001.250712T1800Z-250715T0600Z/ Del Norte Interior-Northern Humboldt Interior- 339 AM PDT Sat Jul 12 2025 ...EXTREME HEAT WARNING REMAINS IN EFFECT FROM 11 AM THIS MORNING TO 11 PM PDT MONDAY... * WHAT...Dangerously hot conditions with high temperatures of 102 to 108. * WHERE...Del Norte Interior and Northern Humboldt Interior. * WHEN...From 11 AM this morning to 11 PM PDT Monday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events. * ADDITIONAL DETAILS...Overnight lows around 60 will provide some relief in the valleys, but higher terrain may see lows remain in the 70s. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. && $$ CAZ110-113-121845- /O.CON.KEKA.HT.Y.0002.000000T0000Z-250714T0600Z/ Northwestern Mendocino Interior-Southeastern Mendocino Interior- Including Legget, Calpella, Potter Valley, Hopland, Laytonville, Redwood Valley, Ukiah, Talmage, and Willits 339 AM PDT Sat Jul 12 2025 ...HEAT ADVISORY REMAINS IN EFFECT UNTIL 11 PM PDT SUNDAY... * WHAT...Moderate heat risk is expected with highs from 100 to 105 each afternoon. * WHERE...Northwestern Mendocino Interior and Southeastern Mendocino Interior. * WHEN...Until 11 PM PDT Sunday. * IMPACTS...Hot temperatures may cause heat illnesses. * ADDITIONAL DETAILS...Overnight lows around 60 will provide some relief in the valleys, but higher terrain may see lows remain in the 70s. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. && $$ CAZ111-114-115-121845- /O.CON.KEKA.HT.Y.0002.000000T0000Z-250714T0600Z/ Northeastern Mendocino Interior-Northern Lake-Southern Lake- Including Clearlake, Knobcone Camp, Clearlake Park, Hidden Valley Lake, Covelo, Lakeport, Middletown, Gravelly Valley Airport, and Finley 339 AM PDT Sat Jul 12 2025 ...HEAT ADVISORY REMAINS IN EFFECT UNTIL 11 PM PDT SUNDAY... * WHAT...Moderate to locally major heat heat risk is expected with highs between 100 and 105 in the valleys. * WHERE...Lake County, and Northeastern Mendocino Interior. * WHEN...Until 11 PM PDT Sunday. * IMPACTS...Hot temperatures may cause heat illnesses. * ADDITIONAL DETAILS...Overnight lows in the low 60s will provide some relief in the valleys, but higher terrain may see lows remain in the 70s. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. && $$ CAZ106-121845- /O.CON.KEKA.HT.Y.0002.250712T1800Z-250715T0600Z/ Southern Humboldt Interior- Including Bridgeville, Alderpoint, Garberville, Dinsmore, and Benbow 339 AM PDT Sat Jul 12 2025 ...HEAT ADVISORY REMAINS IN EFFECT FROM 11 AM THIS MORNING TO 11 PM PDT MONDAY... * WHAT...Moderate to major heat risk is possible with highs of 100 to 105. * WHERE...Southern Humboldt Interior. * WHEN...From 11 AM this morning to 11 PM PDT Monday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. && $$ For hazard areas see https://www.wrh.noaa.gov/map/?wfo=eka EYS
724 WWUS76 KEKA 121834 NPWEKA URGENT - WEATHER MESSAGE National Weather Service Eureka CA 1134 AM PDT Sat Jul 12 2025 CAZ102-105-130245- /O.CON.KEKA.XH.W.0001.000000T0000Z-250715T0600Z/ Del Norte Interior-Northern Humboldt Interior- 1134 AM PDT Sat Jul 12 2025 ...EXTREME HEAT WARNING REMAINS IN EFFECT UNTIL 11 PM PDT MONDAY... * WHAT...Dangerously hot conditions with high temperatures of 102 to 108. * WHERE...Del Norte Interior and Northern Humboldt Interior. * WHEN...Until 11 PM PDT Monday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events. * ADDITIONAL DETAILS...Overnight lows around 60 will provide some relief in the valleys, but higher terrain may see lows remain in the 70s. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. && $$ CAZ107-108-130245- /O.CON.KEKA.XH.W.0001.000000T0000Z-250715T0600Z/ Northern Trinity-Southern Trinity- 1134 AM PDT Sat Jul 12 2025 ...EXTREME HEAT WARNING REMAINS IN EFFECT UNTIL 11 PM PDT MONDAY... * WHAT...Dangerously hot conditions with high temperatures of 103 to 108. * WHERE...Trinity County. * WHEN...Until 11 PM PDT Monday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events. * ADDITIONAL DETAILS...Overnight lows around 60 will provide some relief in the valleys, but higher terrain may see lows remain in the 70s. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. && $$ CAZ106-130245- /O.CON.KEKA.HT.Y.0002.000000T0000Z-250715T0600Z/ Southern Humboldt Interior- Including Benbow, Garberville, Bridgeville, Dinsmore, and Alderpoint 1134 AM PDT Sat Jul 12 2025 ...HEAT ADVISORY REMAINS IN EFFECT UNTIL 11 PM PDT MONDAY... * WHAT...Moderate to major heat risk is possible with highs of 100 to 105. * WHERE...Southern Humboldt Interior. * WHEN...Until 11 PM PDT Monday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. && $$ CAZ110-113-130245- /O.CON.KEKA.HT.Y.0002.000000T0000Z-250714T0600Z/ Northwestern Mendocino Interior-Southeastern Mendocino Interior- Including Willits, Potter Valley, Legget, Redwood Valley, Ukiah, Calpella, Talmage, Hopland, and Laytonville 1134 AM PDT Sat Jul 12 2025 ...HEAT ADVISORY REMAINS IN EFFECT UNTIL 11 PM PDT SUNDAY... * WHAT...Moderate heat risk is expected with highs from 100 to 105 each afternoon. * WHERE...Northwestern Mendocino Interior and Southeastern Mendocino Interior. * WHEN...Until 11 PM PDT Sunday. * IMPACTS...Hot temperatures may cause heat illnesses. * ADDITIONAL DETAILS...Overnight lows around 60 will provide some relief in the valleys, but higher terrain may see lows remain in the 70s. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. && $$ CAZ111-114-115-130245- /O.CON.KEKA.HT.Y.0002.000000T0000Z-250714T0600Z/ Northeastern Mendocino Interior-Northern Lake-Southern Lake- Including Gravelly Valley Airport, Middletown, Covelo, Finley, Clearlake, Clearlake Park, Hidden Valley Lake, Lakeport, and Knobcone Camp 1134 AM PDT Sat Jul 12 2025 ...HEAT ADVISORY REMAINS IN EFFECT UNTIL 11 PM PDT SUNDAY... * WHAT...Moderate to locally major heat heat risk is expected with highs between 100 and 105 in the valleys. * WHERE...Lake County, and Northeastern Mendocino Interior. * WHEN...Until 11 PM PDT Sunday. * IMPACTS...Hot temperatures may cause heat illnesses. * ADDITIONAL DETAILS...Overnight lows in the low 60s will provide some relief in the valleys, but higher terrain may see lows remain in the 70s. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. && $$ For hazard areas see https://www.wrh.noaa.gov/map/?wfo=eka DS
650 WWUS76 KEKA 130232 NPWEKA URGENT - WEATHER MESSAGE National Weather Service Eureka CA 732 PM PDT Sat Jul 12 2025 CAZ102-105-131045- /O.CON.KEKA.XH.W.0001.000000T0000Z-250715T0600Z/ Del Norte Interior-Northern Humboldt Interior- 732 PM PDT Sat Jul 12 2025 ...EXTREME HEAT WARNING REMAINS IN EFFECT UNTIL 11 PM PDT MONDAY... * WHAT...Dangerously hot conditions with high temperatures of 102 to 110. * WHERE...Del Norte Interior and Northern Humboldt Interior. * WHEN...Until 11 PM PDT Monday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events. * ADDITIONAL DETAILS...Overnight lows around 60 will provide some relief in the valleys, but higher terrain may see lows remain in the 70s. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. && $$ CAZ107-108-131045- /O.CON.KEKA.XH.W.0001.000000T0000Z-250715T0600Z/ Northern Trinity-Southern Trinity- 732 PM PDT Sat Jul 12 2025 ...EXTREME HEAT WARNING REMAINS IN EFFECT UNTIL 11 PM PDT MONDAY... * WHAT...Dangerously hot conditions with high temperatures of 103 to 108. * WHERE...Trinity County. * WHEN...Until 11 PM PDT Monday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events. * ADDITIONAL DETAILS...Overnight lows around 60 will provide some relief in the valleys, but higher terrain may see lows remain in the 70s. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. && $$ CAZ106-131045- /O.CON.KEKA.HT.Y.0002.000000T0000Z-250715T0600Z/ Southern Humboldt Interior- Including Alderpoint, Bridgeville, Benbow, Dinsmore, and Garberville 732 PM PDT Sat Jul 12 2025 ...HEAT ADVISORY REMAINS IN EFFECT UNTIL 11 PM PDT MONDAY... * WHAT...Moderate to major heat risk is possible with highs of 100 to 105. * WHERE...Southern Humboldt Interior. * WHEN...Until 11 PM PDT Monday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. && $$ CAZ110-113-131045- /O.CON.KEKA.HT.Y.0002.000000T0000Z-250714T0600Z/ Northwestern Mendocino Interior-Southeastern Mendocino Interior- Including Redwood Valley, Ukiah, Calpella, Hopland, Talmage, Potter Valley, Willits, Legget, and Laytonville 732 PM PDT Sat Jul 12 2025 ...HEAT ADVISORY REMAINS IN EFFECT UNTIL 11 PM PDT SUNDAY... * WHAT...Moderate heat risk is expected with highs from 100 to 105 each afternoon. * WHERE...Northwestern Mendocino Interior and Southeastern Mendocino Interior. * WHEN...Until 11 PM PDT Sunday. * IMPACTS...Hot temperatures may cause heat illnesses. * ADDITIONAL DETAILS...Overnight lows around 60 will provide some relief in the valleys, but higher terrain may see lows remain in the 70s. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. && $$ CAZ111-114-115-131045- /O.CON.KEKA.HT.Y.0002.000000T0000Z-250714T0600Z/ Northeastern Mendocino Interior-Northern Lake-Southern Lake- Including Gravelly Valley Airport, Finley, Clearlake Park, Lakeport, Middletown, Hidden Valley Lake, Knobcone Camp, Covelo, and Clearlake 732 PM PDT Sat Jul 12 2025 ...HEAT ADVISORY REMAINS IN EFFECT UNTIL 11 PM PDT SUNDAY... * WHAT...Moderate to locally major heat heat risk is expected with highs between 100 and 105 in the valleys. * WHERE...Lake County, and Northeastern Mendocino Interior. * WHEN...Until 11 PM PDT Sunday. * IMPACTS...Hot temperatures may cause heat illnesses. * ADDITIONAL DETAILS...Overnight lows in the low 60s will provide some relief in the valleys, but higher terrain may see lows remain in the 70s. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. && $$ For hazard areas see https://www.wrh.noaa.gov/map/?wfo=eka DS
020 WWUS76 KEKA 130943 NPWEKA URGENT - WEATHER MESSAGE National Weather Service Eureka CA 243 AM PDT Sun Jul 13 2025 CAZ102-105-131745- /O.CON.KEKA.XH.W.0001.000000T0000Z-250715T0600Z/ Del Norte Interior-Northern Humboldt Interior- 243 AM PDT Sun Jul 13 2025 ...EXTREME HEAT WARNING REMAINS IN EFFECT UNTIL 11 PM PDT MONDAY... * WHAT...Dangerously hot conditions with high temperatures of 102 to 110. * WHERE...Del Norte Interior and Northern Humboldt Interior. * WHEN...Until 11 PM PDT Monday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events. * ADDITIONAL DETAILS...Overnight lows around 60 will provide some relief in the valleys, but higher terrain may see lows remain in the 70s. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. && $$ CAZ107-108-131745- /O.CON.KEKA.XH.W.0001.000000T0000Z-250715T0600Z/ Northern Trinity-Southern Trinity- 243 AM PDT Sun Jul 13 2025 ...EXTREME HEAT WARNING REMAINS IN EFFECT UNTIL 11 PM PDT MONDAY... * WHAT...Dangerously hot conditions with high temperatures of 103 to 108. * WHERE...Trinity County. * WHEN...Until 11 PM PDT Monday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events. * ADDITIONAL DETAILS...Overnight lows around 60 will provide some relief in the valleys, but higher terrain may see lows remain in the 70s. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. && $$ CAZ106-131745- /O.CON.KEKA.HT.Y.0002.000000T0000Z-250715T0600Z/ Southern Humboldt Interior- Including Alderpoint, Bridgeville, Dinsmore, Benbow, and Garberville 243 AM PDT Sun Jul 13 2025 ...HEAT ADVISORY REMAINS IN EFFECT UNTIL 11 PM PDT MONDAY... * WHAT...Moderate to major heat risk is possible with highs of 100 to 105. * WHERE...Southern Humboldt Interior. * WHEN...Until 11 PM PDT Monday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. && $$ CAZ110-113-131745- /O.CON.KEKA.HT.Y.0002.000000T0000Z-250714T0600Z/ Northwestern Mendocino Interior-Southeastern Mendocino Interior- Including Hopland, Legget, Redwood Valley, Willits, Calpella, Ukiah, Laytonville, Talmage, and Potter Valley 243 AM PDT Sun Jul 13 2025 ...HEAT ADVISORY REMAINS IN EFFECT UNTIL 11 PM PDT THIS EVENING... * WHAT...Moderate heat risk is expected with highs from 100 to 105 each afternoon. * WHERE...Northwestern Mendocino Interior and Southeastern Mendocino Interior. * WHEN...Until 11 PM PDT this evening. * IMPACTS...Hot temperatures may cause heat illnesses. * ADDITIONAL DETAILS...Overnight lows around 60 will provide some relief in the valleys, but higher terrain may see lows remain in the 70s. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. && $$ CAZ111-114-115-131745- /O.CON.KEKA.HT.Y.0002.000000T0000Z-250714T0600Z/ Northeastern Mendocino Interior-Northern Lake-Southern Lake- Including Covelo, Finley, Clearlake Park, Hidden Valley Lake, Knobcone Camp, Gravelly Valley Airport, Lakeport, Clearlake, and Middletown 243 AM PDT Sun Jul 13 2025 ...HEAT ADVISORY REMAINS IN EFFECT UNTIL 11 PM PDT THIS EVENING... * WHAT...Moderate to locally major heat heat risk is expected with highs between 100 and 105 in the valleys. * WHERE...Lake County, and Northeastern Mendocino Interior. * WHEN...Until 11 PM PDT this evening. * IMPACTS...Hot temperatures may cause heat illnesses. * ADDITIONAL DETAILS...Overnight lows in the low 60s will provide some relief in the valleys, but higher terrain may see lows remain in the 70s. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. && $$ For hazard areas see https://www.wrh.noaa.gov/map/?wfo=eka EYS
995 WWUS76 KEKA 131841 NPWEKA URGENT - WEATHER MESSAGE National Weather Service Eureka CA 1141 AM PDT Sun Jul 13 2025 CAZ102-105-140245- /O.CON.KEKA.XH.W.0001.000000T0000Z-250715T0600Z/ Del Norte Interior-Northern Humboldt Interior- 1141 AM PDT Sun Jul 13 2025 ...EXTREME HEAT WARNING REMAINS IN EFFECT UNTIL 11 PM PDT MONDAY... * WHAT...Dangerously hot conditions with high temperatures of 102 to 110. * WHERE...Del Norte Interior and Northern Humboldt Interior. * WHEN...Until 11 PM PDT Monday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events. * ADDITIONAL DETAILS...Overnight lows around 60 will provide some relief in the valleys, but higher terrain may see lows remain in the 70s. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. && $$ CAZ107-108-140245- /O.CON.KEKA.XH.W.0001.000000T0000Z-250715T0600Z/ Northern Trinity-Southern Trinity- 1141 AM PDT Sun Jul 13 2025 ...EXTREME HEAT WARNING REMAINS IN EFFECT UNTIL 11 PM PDT MONDAY... * WHAT...Dangerously hot conditions with high temperatures of 103 to 108. * WHERE...Trinity County. * WHEN...Until 11 PM PDT Monday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events. * ADDITIONAL DETAILS...Overnight lows around 60 will provide some relief in the valleys, but higher terrain may see lows remain in the 70s. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. && $$ CAZ106-140245- /O.CON.KEKA.HT.Y.0002.000000T0000Z-250715T0600Z/ Southern Humboldt Interior- Including Dinsmore, Garberville, Benbow, Alderpoint, and Bridgeville 1141 AM PDT Sun Jul 13 2025 ...HEAT ADVISORY REMAINS IN EFFECT UNTIL 11 PM PDT MONDAY... * WHAT...Moderate to major heat risk is possible with highs of 100 to 105. * WHERE...Southern Humboldt Interior. * WHEN...Until 11 PM PDT Monday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. && $$ CAZ110-113-140245- /O.CON.KEKA.HT.Y.0002.000000T0000Z-250714T0600Z/ Northwestern Mendocino Interior-Southeastern Mendocino Interior- Including Calpella, Talmage, Legget, Willits, Redwood Valley, Potter Valley, Laytonville, Ukiah, and Hopland 1141 AM PDT Sun Jul 13 2025 ...HEAT ADVISORY REMAINS IN EFFECT UNTIL 11 PM PDT THIS EVENING... * WHAT...Moderate heat risk is expected with highs from 100 to 105 each afternoon. * WHERE...Northwestern Mendocino Interior and Southeastern Mendocino Interior. * WHEN...Until 11 PM PDT this evening. * IMPACTS...Hot temperatures may cause heat illnesses. * ADDITIONAL DETAILS...Overnight lows around 60 will provide some relief in the valleys, but higher terrain may see lows remain in the 70s. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. && $$ CAZ111-114-115-140245- /O.CON.KEKA.HT.Y.0002.000000T0000Z-250714T0600Z/ Northeastern Mendocino Interior-Northern Lake-Southern Lake- Including Covelo, Gravelly Valley Airport, Knobcone Camp, Clearlake Park, Middletown, Hidden Valley Lake, Clearlake, Lakeport, and Finley 1141 AM PDT Sun Jul 13 2025 ...HEAT ADVISORY REMAINS IN EFFECT UNTIL 11 PM PDT THIS EVENING... * WHAT...Moderate to locally major heat heat risk is expected with highs between 100 and 105 in the valleys. * WHERE...Lake County, and Northeastern Mendocino Interior. * WHEN...Until 11 PM PDT this evening. * IMPACTS...Hot temperatures may cause heat illnesses. * ADDITIONAL DETAILS...Overnight lows in the low 60s will provide some relief in the valleys, but higher terrain may see lows remain in the 70s. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. && $$ For hazard areas see https://www.wrh.noaa.gov/map/?wfo=eka
837 WWUS76 KEKA 140240 NPWEKA URGENT - WEATHER MESSAGE National Weather Service Eureka CA 740 PM PDT Sun Jul 13 2025 CAZ102-105-141045- /O.CON.KEKA.XH.W.0001.000000T0000Z-250715T0600Z/ Del Norte Interior-Northern Humboldt Interior- 740 PM PDT Sun Jul 13 2025 ...EXTREME HEAT WARNING REMAINS IN EFFECT UNTIL 11 PM PDT MONDAY... * WHAT...Dangerously hot conditions with high temperatures of 102 to 110. * WHERE...Del Norte Interior and Northern Humboldt Interior. * WHEN...Until 11 PM PDT Monday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events. * ADDITIONAL DETAILS...Overnight lows around 60 will provide some relief in the valleys, but higher terrain may see lows remain in the 70s. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. && $$ CAZ107-108-141045- /O.CON.KEKA.XH.W.0001.000000T0000Z-250715T0600Z/ Northern Trinity-Southern Trinity- 740 PM PDT Sun Jul 13 2025 ...EXTREME HEAT WARNING REMAINS IN EFFECT UNTIL 11 PM PDT MONDAY... * WHAT...Dangerously hot conditions with high temperatures of 102 to 110. * WHERE...Trinity County. * WHEN...Until 11 PM PDT Monday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events. * ADDITIONAL DETAILS...Overnight lows around 60 will provide some relief in the valleys, but higher terrain may see lows remain in the 70s. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. && $$ CAZ110-113-141045- /O.EXT.KEKA.HT.Y.0002.000000T0000Z-250715T0600Z/ Northwestern Mendocino Interior-Southeastern Mendocino Interior- Including Redwood Valley, Willits, Ukiah, Legget, Hopland, Calpella, Potter Valley, Talmage, and Laytonville 740 PM PDT Sun Jul 13 2025 ...HEAT ADVISORY NOW IN EFFECT UNTIL 11 PM PDT MONDAY... * WHAT...Moderate heat risk is expected with highs from 100 to 105 each afternoon. * WHERE...Northwestern Mendocino Interior and Southeastern Mendocino Interior. * WHEN...Until 11 PM PDT Monday. * IMPACTS...Hot temperatures may cause heat illnesses. * ADDITIONAL DETAILS...Overnight lows around 60 will provide some relief in the valleys, but higher terrain may see lows remain in the 70s. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. && $$ CAZ111-114-115-141045- /O.EXT.KEKA.HT.Y.0002.000000T0000Z-250715T0600Z/ Northeastern Mendocino Interior-Northern Lake-Southern Lake- Including Covelo, Lakeport, Hidden Valley Lake, Clearlake Park, Finley, Knobcone Camp, Middletown, Clearlake, and Gravelly Valley Airport 740 PM PDT Sun Jul 13 2025 ...HEAT ADVISORY NOW IN EFFECT UNTIL 11 PM PDT MONDAY... * WHAT...Moderate to locally major heat heat risk is expected with highs between 100 and 105 in the valleys. * WHERE...Lake County, and Northeastern Mendocino Interior. * WHEN...Until 11 PM PDT Monday. * IMPACTS...Hot temperatures may cause heat illnesses. * ADDITIONAL DETAILS...Overnight lows in the low 60s will provide some relief in the valleys, but higher terrain may see lows remain in the 70s. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. && $$ CAZ106-141045- /O.CON.KEKA.HT.Y.0002.000000T0000Z-250715T0600Z/ Southern Humboldt Interior- Including Dinsmore, Alderpoint, Benbow, Garberville, and Bridgeville 740 PM PDT Sun Jul 13 2025 ...HEAT ADVISORY REMAINS IN EFFECT UNTIL 11 PM PDT MONDAY... * WHAT...Moderate to major heat risk is possible with highs of 96 to 102. * WHERE...Southern Humboldt Interior. * WHEN...Until 11 PM PDT Monday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. && $$ For hazard areas see https://www.wrh.noaa.gov/map/?wfo=eka JB
691 WWUS76 KEKA 140935 NPWEKA URGENT - WEATHER MESSAGE National Weather Service Eureka CA 235 AM PDT Mon Jul 14 2025 CAZ102-105-141745- /O.CON.KEKA.XH.W.0001.000000T0000Z-250715T0600Z/ Del Norte Interior-Northern Humboldt Interior- 235 AM PDT Mon Jul 14 2025 ...EXTREME HEAT WARNING REMAINS IN EFFECT UNTIL 11 PM PDT THIS EVENING... * WHAT...Dangerously hot conditions with high temperatures of 102 to 110. * WHERE...Del Norte Interior and Northern Humboldt Interior. * WHEN...Until 11 PM PDT this evening. * IMPACTS...Heat related illnesses increase significantly during extreme heat events. * ADDITIONAL DETAILS...Overnight lows around 60 will provide some relief in the valleys, but higher terrain may see lows remain in the 70s. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. && $$ CAZ107-108-141745- /O.CON.KEKA.XH.W.0001.000000T0000Z-250715T0600Z/ Northern Trinity-Southern Trinity- 235 AM PDT Mon Jul 14 2025 ...EXTREME HEAT WARNING REMAINS IN EFFECT UNTIL 11 PM PDT THIS EVENING... * WHAT...Dangerously hot conditions with high temperatures of 102 to 110. * WHERE...Trinity County. * WHEN...Until 11 PM PDT this evening. * IMPACTS...Heat related illnesses increase significantly during extreme heat events. * ADDITIONAL DETAILS...Overnight lows around 60 will provide some relief in the valleys, but higher terrain may see lows remain in the 70s. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. && $$ CAZ106-141745- /O.CON.KEKA.HT.Y.0002.000000T0000Z-250715T0600Z/ Southern Humboldt Interior- Including Garberville, Bridgeville, Benbow, Dinsmore, and Alderpoint 235 AM PDT Mon Jul 14 2025 ...HEAT ADVISORY REMAINS IN EFFECT UNTIL 11 PM PDT THIS EVENING... * WHAT...Moderate to major heat risk is possible with highs of 96 to 102. * WHERE...Southern Humboldt Interior. * WHEN...Until 11 PM PDT this evening. * IMPACTS...Heat related illnesses increase significantly during extreme heat events. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. && $$ CAZ110-113-141745- /O.CON.KEKA.HT.Y.0002.000000T0000Z-250715T0600Z/ Northwestern Mendocino Interior-Southeastern Mendocino Interior- Including Legget, Willits, Hopland, Calpella, Ukiah, Talmage, Redwood Valley, Potter Valley, and Laytonville 235 AM PDT Mon Jul 14 2025 ...HEAT ADVISORY REMAINS IN EFFECT UNTIL 11 PM PDT THIS EVENING... * WHAT...Moderate heat risk is expected with highs from 100 to 105 each afternoon. * WHERE...Northwestern Mendocino Interior and Southeastern Mendocino Interior. * WHEN...Until 11 PM PDT this evening. * IMPACTS...Hot temperatures may cause heat illnesses. * ADDITIONAL DETAILS...Overnight lows around 60 will provide some relief in the valleys, but higher terrain may see lows remain in the 70s. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. && $$ CAZ111-114-115-141745- /O.CON.KEKA.HT.Y.0002.000000T0000Z-250715T0600Z/ Northeastern Mendocino Interior-Northern Lake-Southern Lake- Including Covelo, Clearlake Park, Hidden Valley Lake, Middletown, Knobcone Camp, Clearlake, Lakeport, Finley, and Gravelly Valley Airport 235 AM PDT Mon Jul 14 2025 ...HEAT ADVISORY REMAINS IN EFFECT UNTIL 11 PM PDT THIS EVENING... * WHAT...Moderate to locally major heat heat risk is expected with highs between 100 and 105 in the valleys. * WHERE...Lake County, and Northeastern Mendocino Interior. * WHEN...Until 11 PM PDT this evening. * IMPACTS...Hot temperatures may cause heat illnesses. * ADDITIONAL DETAILS...Overnight lows in the low 60s will provide some relief in the valleys, but higher terrain may see lows remain in the 70s. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. && $$ For hazard areas see https://www.wrh.noaa.gov/map/?wfo=eka EYS
226 WWUS76 KEKA 141733 NPWEKA URGENT - WEATHER MESSAGE National Weather Service Eureka CA 1033 AM PDT Mon Jul 14 2025 CAZ102-105-150145- /O.CON.KEKA.XH.W.0001.000000T0000Z-250715T0600Z/ Del Norte Interior-Northern Humboldt Interior- 1033 AM PDT Mon Jul 14 2025 ...EXTREME HEAT WARNING REMAINS IN EFFECT UNTIL 11 PM PDT THIS EVENING... * WHAT...Dangerously hot conditions with high temperatures of 102 to 110. * WHERE...Del Norte Interior and Northern Humboldt Interior. * WHEN...Until 11 PM PDT this evening. * IMPACTS...Heat related illnesses increase significantly during extreme heat events. * ADDITIONAL DETAILS...Overnight lows around 60 will provide some relief in the valleys, but higher terrain may see lows remain in the 70s. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. && $$ CAZ107-108-150145- /O.CON.KEKA.XH.W.0001.000000T0000Z-250715T0600Z/ Northern Trinity-Southern Trinity- 1033 AM PDT Mon Jul 14 2025 ...EXTREME HEAT WARNING REMAINS IN EFFECT UNTIL 11 PM PDT THIS EVENING... * WHAT...Dangerously hot conditions with high temperatures of 102 to 110. * WHERE...Trinity County. * WHEN...Until 11 PM PDT this evening. * IMPACTS...Heat related illnesses increase significantly during extreme heat events. * ADDITIONAL DETAILS...Overnight lows around 60 will provide some relief in the valleys, but higher terrain may see lows remain in the 70s. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. && $$ CAZ106-150145- /O.CON.KEKA.HT.Y.0002.000000T0000Z-250715T0600Z/ Southern Humboldt Interior- Including Alderpoint, Benbow, Bridgeville, Dinsmore, and Garberville 1033 AM PDT Mon Jul 14 2025 ...HEAT ADVISORY REMAINS IN EFFECT UNTIL 11 PM PDT THIS EVENING... * WHAT...Moderate to major heat risk is possible with highs of 96 to 102. * WHERE...Southern Humboldt Interior. * WHEN...Until 11 PM PDT this evening. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. && $$ CAZ110-113-150145- /O.CON.KEKA.HT.Y.0002.000000T0000Z-250715T0600Z/ Northwestern Mendocino Interior-Southeastern Mendocino Interior- Including Redwood Valley, Calpella, Ukiah, Talmage, Legget, Hopland, Potter Valley, Willits, and Laytonville 1033 AM PDT Mon Jul 14 2025 ...HEAT ADVISORY REMAINS IN EFFECT UNTIL 11 PM PDT THIS EVENING... * WHAT...Moderate heat risk is expected with highs from 100 to 105. * WHERE...Northwestern Mendocino Interior and Southeastern Mendocino Interior. * WHEN...Until 11 PM PDT this evening. * IMPACTS...Hot temperatures may cause heat illnesses. * ADDITIONAL DETAILS...Overnight lows around 60 will provide some relief in the valleys, but higher terrain may see lows remain in the 70s. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. && $$ CAZ111-114-115-150145- /O.CON.KEKA.HT.Y.0002.000000T0000Z-250715T0600Z/ Northeastern Mendocino Interior-Northern Lake-Southern Lake- Including Covelo, Middletown, Lakeport, Clearlake, Clearlake Park, Hidden Valley Lake, Knobcone Camp, Gravelly Valley Airport, and Finley 1033 AM PDT Mon Jul 14 2025 ...HEAT ADVISORY REMAINS IN EFFECT UNTIL 11 PM PDT THIS EVENING... * WHAT...Moderate to locally major heat heat risk is expected with highs between 100 and 105 in the valleys. * WHERE...Lake County, and Northeastern Mendocino Interior. * WHEN...Until 11 PM PDT this evening. * IMPACTS...Hot temperatures may cause heat illnesses. * ADDITIONAL DETAILS...Overnight lows in the low 60s will provide some relief in the valleys, but higher terrain may see lows remain in the 70s. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. && $$ For hazard areas see https://www.wrh.noaa.gov/map/?wfo=eka MKK
754 WWUS76 KEKA 150132 NPWEKA URGENT - WEATHER MESSAGE National Weather Service Eureka CA 632 PM PDT Mon Jul 14 2025 CAZ102-105-150600- /O.CON.KEKA.XH.W.0001.000000T0000Z-250715T0600Z/ Del Norte Interior-Northern Humboldt Interior- 632 PM PDT Mon Jul 14 2025 ...EXTREME HEAT WARNING REMAINS IN EFFECT UNTIL 11 PM PDT THIS EVENING... * WHAT...Dangerously hot conditions with high temperatures of 102 to 110. * WHERE...Del Norte Interior and Northern Humboldt Interior. * WHEN...Until 11 PM PDT this evening. * IMPACTS...Heat related illnesses increase significantly during extreme heat events. * ADDITIONAL DETAILS...Overnight lows around 60 will provide some relief in the valleys, but higher terrain may see lows remain in the 70s. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. && $$ CAZ107-108-150600- /O.CON.KEKA.XH.W.0001.000000T0000Z-250715T0600Z/ Northern Trinity-Southern Trinity- 632 PM PDT Mon Jul 14 2025 ...EXTREME HEAT WARNING REMAINS IN EFFECT UNTIL 11 PM PDT THIS EVENING... * WHAT...Dangerously hot conditions with high temperatures of 102 to 110. * WHERE...Trinity County. * WHEN...Until 11 PM PDT this evening. * IMPACTS...Heat related illnesses increase significantly during extreme heat events. * ADDITIONAL DETAILS...Overnight lows around 60 will provide some relief in the valleys, but higher terrain may see lows remain in the 70s. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. && $$ CAZ106-150600- /O.CON.KEKA.HT.Y.0002.000000T0000Z-250715T0600Z/ Southern Humboldt Interior- Including Garberville, Dinsmore, Bridgeville, Benbow, and Alderpoint 632 PM PDT Mon Jul 14 2025 ...HEAT ADVISORY REMAINS IN EFFECT UNTIL 11 PM PDT THIS EVENING... * WHAT...Moderate to major heat risk is possible with highs of 96 to 102. * WHERE...Southern Humboldt Interior. * WHEN...Until 11 PM PDT this evening. * IMPACTS...Heat related illnesses increase significantly during extreme heat events. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. && $$ CAZ110-113-150600- /O.CON.KEKA.HT.Y.0002.000000T0000Z-250715T0600Z/ Northwestern Mendocino Interior-Southeastern Mendocino Interior- Including Potter Valley, Redwood Valley, Hopland, Calpella, Willits, Laytonville, Ukiah, Legget, and Talmage 632 PM PDT Mon Jul 14 2025 ...HEAT ADVISORY REMAINS IN EFFECT UNTIL 11 PM PDT THIS EVENING... * WHAT...Moderate heat risk is expected with highs from 100 to 105. * WHERE...Northwestern Mendocino Interior and Southeastern Mendocino Interior. * WHEN...Until 11 PM PDT this evening. * IMPACTS...Hot temperatures may cause heat illnesses. * ADDITIONAL DETAILS...Overnight lows around 60 will provide some relief in the valleys, but higher terrain may see lows remain in the 70s. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. && $$ CAZ111-114-115-150600- /O.CON.KEKA.HT.Y.0002.000000T0000Z-250715T0600Z/ Northeastern Mendocino Interior-Northern Lake-Southern Lake- Including Clearlake Park, Knobcone Camp, Clearlake, Covelo, Hidden Valley Lake, Lakeport, Finley, Middletown, and Gravelly Valley Airport 632 PM PDT Mon Jul 14 2025 ...HEAT ADVISORY REMAINS IN EFFECT UNTIL 11 PM PDT THIS EVENING... * WHAT...Moderate to locally major heat heat risk is expected with highs between 100 and 105 in the valleys. * WHERE...Lake County, and Northeastern Mendocino Interior. * WHEN...Until 11 PM PDT this evening. * IMPACTS...Hot temperatures may cause heat illnesses. * ADDITIONAL DETAILS...Overnight lows in the low 60s will provide some relief in the valleys, but higher terrain may see lows remain in the 70s. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. && $$ For hazard areas see https://www.wrh.noaa.gov/map/?wfo=eka JB
796 WWUS76 KEKA 150545 NPWEKA URGENT - WEATHER MESSAGE National Weather Service Eureka CA 1045 PM PDT Mon Jul 14 2025 CAZ102-105-107-108-150645- /O.EXP.KEKA.XH.W.0001.000000T0000Z-250715T0600Z/ Del Norte Interior-Northern Humboldt Interior-Northern Trinity- Southern Trinity- 1045 PM PDT Mon Jul 14 2025 ...EXTREME HEAT WARNING WILL EXPIRE AT 11 PM PDT THIS EVENING... $$ CAZ106-110-111-113>115-150645- /O.EXP.KEKA.HT.Y.0002.000000T0000Z-250715T0600Z/ Southern Humboldt Interior-Northwestern Mendocino Interior- Northeastern Mendocino Interior-Southeastern Mendocino Interior- Northern Lake-Southern Lake- Including Calpella, Dinsmore, Covelo, Ukiah, Garberville, Redwood Valley, Knobcone Camp, Hidden Valley Lake, Laytonville, Finley, Benbow, Gravelly Valley Airport, Legget, Talmage, Potter Valley, Hopland, Clearlake, Lakeport, Middletown, Clearlake Park, Bridgeville, Willits, and Alderpoint 1045 PM PDT Mon Jul 14 2025 ...HEAT ADVISORY WILL EXPIRE AT 11 PM PDT THIS EVENING... $$ For hazard areas see https://www.wrh.noaa.gov/map/?wfo=eka JB
What forecasters said that day
The local office's own words before this heat advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Eureka, CA wrote its last area forecast discussion before this heat advisory went out at Jul 9, 12:04 AM PDT, 12 hours 32 minutes earlier.
Area forecast discussion, Jul 9, 12:04 AM PDT, 12 hours 32 minutes before
AREA FORECAST DISCUSSION
National Weather Service Eureka CA
1204 AM PDT Wed Jul 9 2025
.SYNOPSIS...Near or slightly below normal temperatures are
expected again Wednesday. Warming is expected again Thursday with
additional warming Friday and hot weather continuing into early
next week.
&&
.DISCUSSION...The center of the upper low currently moves over the
area. This has the potential to bring some thunderstorms to the
area. The models aren't explicitly outputting thunderstorms, but
there is some elevated instability. This, combined with the dynamics
of the low and steep lapse rates aloft may bring some nocturnal
thunderstorms.
Wednesday during the day the upper level low is expected to move off
to the east and we will be in northwest flow. It looks like the
threat for thunderstorms will diminish through the day light hours
on Wednesday.
Wednesday night into Thursday morning offshore flow is expected in
Humboldt and Del Norte counties. This should diminish the marine
layer and allow skies to clear. Thursday is expected to be the
transition day with warmer temperatures, but highs are expected to
remain in the 90s in most inland areas with low to mid 60s possible
along the coast. Friday additional warming is expected with highs
climbing over 100 in many of the valleys. The coast may see highs in
the middle to upper 60s with continued offshore flow. This is
expected to bring moderate to major heat risk to many of the areas.
This heat is expected to persist through the weekend in some of the
interior areas. A heat advisory may be needed in some of the more
persistently hot areas. There is some uncertainty on how much the
valleys will cool off at night and that could mitigate the impact of
the heat. MKK
&&
.AVIATION...Mostly IFR conditions are expected along the North Coast
into Wednesday morning. The upper low spinning over head has
aided in the deepening of the marine layer, as well. With
southerly flow up the Russian River Valley, there is a possibility
of MVFR ceilings for KUKI a few hours before sunrise Wednesday.
There appears to be little chance for clearing through the day
Wednesday for coastal terminals with ceilings most likely lifting
into MVFR range by the afternoon. /JLW
&&
.MARINE...Light winds and low seas are currently dominating the
marine environment as an upper low spins over the coastal waters.
This low will move inland Wednesday allowing surface high pressure
to re-build toward the Northwest California coast over the Eastern
Pacific. This will enhance the pressure gradient and once again
strengthen the northerlies. Near gale to gale wind gusts are
possible Thursday through Saturday, most likely over the outer water
zones, pulling into just the northern waters this weekend as the
thermal trough builds north over land. Steep short period seas will
build in response to the gale northerlies. /RPA
&&
.FIRE WEATHER...High temperatures in the 80's and 90's are expected
for most of the interior on Wednesday. The marine layer is expected
to remain deeper through Wednesday morning as an upper-low moves
past the area, bringing slightly higher afternoon RHs. As this upper
low moves overhead there is the potential for thunderstorms to move
across Humboldt, Del Norte and Trinity counties early Wednesday, yet
as of writing this no storms have been seen via satellite/radar.
Confidence on these storms manifesting remains low and the better
chance for Thunderstorms remains to the north of the area, with
storms seen over NE Oregon. Overnight recoveries generally remain
good aside from the exposed ridges in the thermal belt.
Much hotter temperatures and drier humidity are likely in the
interior late this week. Thursday and Friday mornings offshore flow
will bring poor recoveries to the higher elevations and may push the
stratus off the coast. Triple digit temperatures are likely in most
of the interior valleys by Friday with very low afternoon RHs and
moderate overnight recoveries. JB
&&
.EKA WATCHES/WARNINGS/ADVISORIES...
CA...
None.
NORTHWEST CALIFORNIA COASTAL WATERS...
Small Craft Advisory from 3 AM to 11 AM PDT Thursday for
PZZ455-470.
Gale Watch from Thursday morning through Thursday evening
for PZZ455-470-475.
Small Craft Advisory from 9 PM this evening to 11 AM PDT
Thursday for PZZ475.
&&
NOTE: The full forecast discussion is now regularly issued between
10 am/pm and 1 pm/am. Additional updates will be issued as needed.
Visit us at https://www.weather.gov/eureka
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For forecast zone information
see the forecast zone map online:
https://www.weather.gov/images/eka/zonemap.pngThe office that day
Everything else NWS Eureka, CA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 8, 10:46 PM PDT | Gale Watch | EKA | 35 hr | |
| Jul 8, 10:46 PM PDT | Small Craft Advisory | EKA | 52 hr | |
| Jul 9, 10:43 AM PDT | Gale Warning | EKA | 4 days | |
| Jul 9, 12:59 PM PDT | Extreme Heat Watch | EKA | Del Norte, Humboldt | 25 hr |
| Jul 9, 2:48 PM PDT | Small Craft Advisory | EKA | 44 hr |
Nearby
Heat Advisories in California, 2025Every heat advisory in 2025
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.