Alert archive / California / Flood Watches in 2021
Flood Watch 5, NWS Eureka, CA
NWS Eureka, CA issued this flood watch at Oct 22, 2021, 3:30 PM PDT for 5 counties in California. It took effect at Oct 24, 2021, 2:00 AM PDT. It was in force for 19 hr.
The area
The counties it named.
The facts
- Issued
- Oct 22, 2021, 3:30 PM PDT (22:30 UTC)
- In effect from
- Oct 24, 2021, 2:00 AM PDT
- Expired
- Oct 24, 2021, 8:55 PM PDT
- In force
- 19 hr
- Issued by
- NWS Eureka, CA
- Flood severity
- None
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 22:32 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
Medford/Jackson, OR (KMFR), launched 12:00Z, 10.5 hours before the alert went out and 233 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
- 652 m above ground
- 0-6 km bulk shear
- 67 kt
- 0-1 km storm-relative helicity
- 101 m²/s²
- 0-3 km storm-relative helicity
- 64 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
235 WGUS66 KEKA 222230 FFAEKA URGENT - IMMEDIATE BROADCAST REQUESTED Flood Watch National Weather Service Eureka CA 330 PM PDT Fri Oct 22 2021 .An atmospheric river is forecast to focus over northwestern California during Sunday before shifting southward Sunday night or Monday. Periods of moderate to heavy rainfall are expected with this system on top of areas where soils have been saturated from recent rains. CAZ104-106-108-111-114-230630- /O.NEW.KEKA.FA.A.0005.211024T0900Z-211025T1000Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Southwestern Humboldt-Southern Humboldt Interior-Southern Trinity- Northeastern Mendocino Interior-Northern Lake- 330 PM PDT Fri Oct 22 2021 ...FLOOD WATCH IN EFFECT FROM LATE SATURDAY NIGHT THROUGH LATE SUNDAY NIGHT... The National Weather Service in Eureka has issued a * Flood Watch for a portion of northwest California, including the following areas, Northeastern Mendocino Interior, Northern Lake, Southern Humboldt Interior, Southern Trinity, and Southwestern Humboldt. * From late Saturday night through late Sunday night * 4 to 6 inches of rain are forecast to fall Sunday for coastal and valley locations, with 5 to 8 inches possible along southwest facing mountains and ridges. Heavy rain combined with saturated soil from recent rains across the mountains will contribute toward possible flooding. Additionally, rain rates during Sunday morning may near threshold values for flash flooding in the August Complex, with hourly rainfall rates possibly reaching 1 to 1.2 inches per hour. * Low lying areas, creeks, streams, culverts, and portions of urban areas may experience flooding due to heavy rainfall. Heavily burned areas may have an increased risk of flash flooding. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flood Watch means there is a potential for flooding based on current forecasts. You should monitor later forecasts and be alert for possible Flood Warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop. && $$ CAZ105-107-230630- /O.NEW.KEKA.FA.A.0005.211024T0900Z-211025T0400Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Northern Humboldt Interior-Northern Trinity- 330 PM PDT Fri Oct 22 2021 ...FLOOD WATCH IN EFFECT FROM LATE SATURDAY NIGHT THROUGH SUNDAY EVENING... The National Weather Service in Eureka has issued a * Flood Watch for a portion of northwest California, including the following areas, Northern Humboldt Interior and Northern Trinity. * From late Saturday night through Sunday evening * 3 to 4 inches of rain are forecast to fall Sunday for valley locations, with 4 to 6 inches possible along southwest facing mountains and ridges. Heavy rain combined with saturated soil from recent rains across the mountains will contribute toward possible flooding. Additionally, rain rates during Sunday morning may near threshold values for flash flooding in the River Complex, particularly Coffee Creek with hourly rainfall rates possibly reaching 0.5 to 0.75 inches per hour. Rainfall rates are not currently expected to reach thresholds for the Monument burn scar, although rock and mud slides are possible along with increased runoff. * Low lying areas, creeks, streams, culverts, and portions of urban areas may experience flooding due to heavy rainfall. Heavily burned areas may have an increased risk of flash flooding. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flood Watch means there is a potential for flooding based on current forecasts. You should monitor later forecasts and be alert for possible Flood Warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop. && $$ CAZ101>103-230630- /O.NEW.KEKA.FA.A.0005.211024T0900Z-211025T0400Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Coastal Del Norte-Del Norte Interior-Northern Humboldt Coast- 330 PM PDT Fri Oct 22 2021 ...FLOOD WATCH IN EFFECT FROM LATE SATURDAY NIGHT THROUGH SUNDAY EVENING... The National Weather Service in Eureka has issued a * Flood Watch for a portion of northwest California, including the following areas, Coastal Del Norte, Del Norte Interior, and Northern Humboldt Coast. * From late Saturday night through Sunday evening * 1.5 to 3 inches of rain are forecast to fall Sunday in coastal and valley locations, with 3 to 4 inches possible in the coastal mountains. Heavy rain combined with saturated soil from recent rains across the mountains will contribute toward possible small stream and urban flooding. * Low lying areas, creeks, streams, culverts, and portions of urban areas may experience flooding due to heavy rainfall. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flood Watch means there is a potential for flooding based on current forecasts. You should monitor later forecasts and be alert for possible Flood Warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop. && $$ CAZ109-110-112-113-115-230630- /O.NEW.KEKA.FA.A.0005.211024T0900Z-211025T1000Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Mendocino Coast-Northwestern Mendocino Interior- Southwestern Mendocino Interior-Southeastern Mendocino Interior- Southern Lake- 330 PM PDT Fri Oct 22 2021 ...FLOOD WATCH IN EFFECT FROM LATE SATURDAY NIGHT THROUGH LATE SUNDAY NIGHT... The National Weather Service in Eureka has issued a * Flood Watch for a portion of northwest California, including the following areas, Mendocino Coast, Northwestern Mendocino Interior, Southeastern Mendocino Interior, Southern Lake, and Southwestern Mendocino Interior. * From late Saturday night through late Sunday night * 4 to 6 inches of rain are forecast to fall Sunday for coastal and valley locations, with 5 to 8 inches possible along southwest facing mountains and ridges. Heavy rain combined with saturated soil from recent rains across the mountains will contribute toward possible flooding. * Low lying areas, creeks, streams, culverts, and portions of urban areas may experience flooding due to heavy rainfall. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flood Watch means there is a potential for flooding based on current forecasts. You should monitor later forecasts and be alert for possible Flood Warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop. && $$
7 follow-up statements
426 WGUS66 KEKA 230623 FFAEKA Flood Watch National Weather Service Eureka CA 1123 PM PDT Fri Oct 22 2021 .An atmospheric river is forecast to focus over northwestern California during Sunday before shifting southward Sunday night or Monday. Periods of moderate to heavy rainfall are expected with this system on top of areas where soils have been saturated from recent rains. CAZ104-106-108-111-114-231500- /O.CON.KEKA.FA.A.0005.211024T0900Z-211025T1000Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Southwestern Humboldt-Southern Humboldt Interior-Southern Trinity- Northeastern Mendocino Interior-Northern Lake- 1123 PM PDT Fri Oct 22 2021 ...FLOOD WATCH REMAINS IN EFFECT FROM LATE SATURDAY NIGHT THROUGH LATE SUNDAY NIGHT... The Flood Watch continues for * A portion of northwest California, including the following areas, Northeastern Mendocino Interior, Northern Lake, Southern Humboldt Interior, Southern Trinity, and Southwestern Humboldt. * From late Saturday night through late Sunday night * 4 to 6 inches of rain are forecast to fall Sunday for coastal and valley locations, with 5 to 8 inches possible along southwest facing mountains and ridges. Heavy rain combined with saturated soil from recent rains across the mountains will contribute toward possible flooding. Additionally, rain rates during Sunday morning may near threshold values for flash flooding in the August Complex, with hourly rainfall rates possibly reaching 1 to 1.2 inches per hour. * Low lying areas, creeks, streams, culverts, and portions of urban areas may experience flooding due to heavy rainfall. Heavily burned areas may have an increased risk of flash flooding. $$ CAZ105-107-231500- /O.CON.KEKA.FA.A.0005.211024T0900Z-211025T0400Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Northern Humboldt Interior-Northern Trinity- 1123 PM PDT Fri Oct 22 2021 ...FLOOD WATCH REMAINS IN EFFECT FROM LATE SATURDAY NIGHT THROUGH SUNDAY EVENING... The Flood Watch continues for * A portion of northwest California, including the following areas, Northern Humboldt Interior and Northern Trinity. * From late Saturday night through Sunday evening * 3 to 4 inches of rain are forecast to fall Sunday for valley locations, with 4 to 6 inches possible along southwest facing mountains and ridges. Heavy rain combined with saturated soil from recent rains across the mountains will contribute toward possible flooding. Additionally, rain rates during Sunday morning may near threshold values for flash flooding in the River Complex, particularly Coffee Creek with hourly rainfall rates possibly reaching 0.5 to 0.75 inches per hour. Rainfall rates are not currently expected to reach thresholds for the Monument burn scar, although rock and mud slides are possible along with increased runoff. * Low lying areas, creeks, streams, culverts, and portions of urban areas may experience flooding due to heavy rainfall. Heavily burned areas may have an increased risk of flash flooding. $$ CAZ101>103-231500- /O.CON.KEKA.FA.A.0005.211024T0900Z-211025T0400Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Coastal Del Norte-Del Norte Interior-Northern Humboldt Coast- 1123 PM PDT Fri Oct 22 2021 ...FLOOD WATCH REMAINS IN EFFECT FROM LATE SATURDAY NIGHT THROUGH SUNDAY EVENING... The Flood Watch continues for * A portion of northwest California, including the following areas, Coastal Del Norte, Del Norte Interior, and Northern Humboldt Coast. * From late Saturday night through Sunday evening * 1.5 to 3 inches of rain are forecast to fall Sunday in coastal and valley locations, with 3 to 4 inches possible in the coastal mountains. Heavy rain combined with saturated soil from recent rains across the mountains will contribute toward possible small stream and urban flooding. * Low lying areas, creeks, streams, culverts, and portions of urban areas may experience flooding due to heavy rainfall. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flood Watch means there is a potential for flooding based on current forecasts. You should monitor later forecasts and be alert for possible Flood Warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop. && $$ CAZ109-110-112-113-115-231500- /O.CON.KEKA.FA.A.0005.211024T0900Z-211025T1000Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Mendocino Coast-Northwestern Mendocino Interior- Southwestern Mendocino Interior-Southeastern Mendocino Interior- Southern Lake- 1123 PM PDT Fri Oct 22 2021 ...FLOOD WATCH REMAINS IN EFFECT FROM LATE SATURDAY NIGHT THROUGH LATE SUNDAY NIGHT... The Flood Watch continues for * A portion of northwest California, including the following areas, Mendocino Coast, Northwestern Mendocino Interior, Southeastern Mendocino Interior, Southern Lake, and Southwestern Mendocino Interior. * From late Saturday night through late Sunday night * 4 to 6 inches of rain are forecast to fall Sunday for coastal and valley locations, with 5 to 8 inches possible along southwest facing mountains and ridges. Heavy rain combined with saturated soil from recent rains across the mountains will contribute toward possible flooding. * Low lying areas, creeks, streams, culverts, and portions of urban areas may experience flooding due to heavy rainfall. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flood Watch means there is a potential for flooding based on current forecasts. You should monitor later forecasts and be alert for possible Flood Warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop. && $$
113 WGUS66 KEKA 231445 FFAEKA Flood Watch National Weather Service Eureka CA 745 AM PDT Sat Oct 23 2021 .An atmospheric river is forecast to focus over northwestern California during Sunday before shifting southward Sunday night or Monday. Periods of moderate to heavy rainfall are expected with this system on top of areas where soils have been saturated from recent rains. CAZ104-106-108-111-114-232245- /O.CON.KEKA.FA.A.0005.211024T0900Z-211025T1000Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Southwestern Humboldt-Southern Humboldt Interior-Southern Trinity- Northeastern Mendocino Interior-Northern Lake- 745 AM PDT Sat Oct 23 2021 ...FLOOD WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH LATE SUNDAY NIGHT... The Flood Watch continues for * A portion of northwest California, including the following areas, Northeastern Mendocino Interior, Northern Lake, Southern Humboldt Interior, Southern Trinity, and Southwestern Humboldt. * From late tonight through late Sunday night * 4 to 6 inches of rain are forecast to fall Sunday for coastal and valley locations, with 5 to 8 inches possible along southwest facing mountains and ridges. Heavy rain combined with saturated soil from recent rains across the mountains will contribute toward possible flooding. Additionally, rain rates during Sunday morning may near threshold values for flash flooding in the August Complex, with hourly rainfall rates possibly reaching 1 to 1.2 inches per hour. * Low lying areas, creeks, streams, culverts, and portions of urban areas may experience flooding due to heavy rainfall. Heavily burned areas may have an increased risk of flash flooding. $$ CAZ105-107-232245- /O.CON.KEKA.FA.A.0005.211024T0900Z-211025T0400Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Northern Humboldt Interior-Northern Trinity- 745 AM PDT Sat Oct 23 2021 ...FLOOD WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH SUNDAY EVENING... The Flood Watch continues for * A portion of northwest California, including the following areas, Northern Humboldt Interior and Northern Trinity. * From late tonight through Sunday evening * 3 to 4 inches of rain are forecast to fall Sunday for valley locations, with 4 to 6 inches possible along southwest facing mountains and ridges. Heavy rain combined with saturated soil from recent rains across the mountains will contribute toward possible flooding. Additionally, rain rates during Sunday morning may near threshold values for flash flooding in the River Complex, particularly Coffee Creek with hourly rainfall rates possibly reaching 0.5 to 0.75 inches per hour. Rainfall rates are not currently expected to reach thresholds for the Monument burn scar, although rock and mud slides are possible along with increased runoff. * Low lying areas, creeks, streams, culverts, and portions of urban areas may experience flooding due to heavy rainfall. Heavily burned areas may have an increased risk of flash flooding. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flood Watch means there is a potential for flooding based on current forecasts. You should monitor later forecasts and be alert for possible Flood Warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop. && $$ CAZ101>103-232245- /O.CON.KEKA.FA.A.0005.211024T0900Z-211025T0400Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Coastal Del Norte-Del Norte Interior-Northern Humboldt Coast- 745 AM PDT Sat Oct 23 2021 ...FLOOD WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH SUNDAY EVENING... The Flood Watch continues for * A portion of northwest California, including the following areas, Coastal Del Norte, Del Norte Interior, and Northern Humboldt Coast. * From late tonight through Sunday evening * 1.5 to 3 inches of rain are forecast to fall Sunday in coastal and valley locations, with 3 to 4 inches possible in the coastal mountains. Heavy rain combined with saturated soil from recent rains across the mountains will contribute toward possible small stream and urban flooding. * Low lying areas, creeks, streams, culverts, and portions of urban areas may experience flooding due to heavy rainfall. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flood Watch means there is a potential for flooding based on current forecasts. You should monitor later forecasts and be alert for possible Flood Warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop. && $$ CAZ109-110-112-113-115-232245- /O.CON.KEKA.FA.A.0005.211024T0900Z-211025T1000Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Mendocino Coast-Northwestern Mendocino Interior- Southwestern Mendocino Interior-Southeastern Mendocino Interior- Southern Lake- 745 AM PDT Sat Oct 23 2021 ...FLOOD WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH LATE SUNDAY NIGHT... The Flood Watch continues for * A portion of northwest California, including the following areas, Mendocino Coast, Northwestern Mendocino Interior, Southeastern Mendocino Interior, Southern Lake, and Southwestern Mendocino Interior. * From late tonight through late Sunday night * 4 to 6 inches of rain are forecast to fall Sunday for coastal and valley locations, with 5 to 8 inches possible along southwest facing mountains and ridges. Heavy rain combined with saturated soil from recent rains across the mountains will contribute toward possible flooding. * Low lying areas, creeks, streams, culverts, and portions of urban areas may experience flooding due to heavy rainfall. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flood Watch means there is a potential for flooding based on current forecasts. You should monitor later forecasts and be alert for possible Flood Warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop. && $$
696 WGUS66 KEKA 232225 FFAEKA Flood Watch National Weather Service Eureka CA 325 PM PDT Sat Oct 23 2021 .An atmospheric river is forecast to focus over northwestern California late Saturday night and Sunday before shifting southward Sunday night or Monday. Periods of moderate to heavy rainfall are expected with this system on top of areas where soils have been saturated from recent rains. CAZ104-106-108-111-114-240630- /O.CON.KEKA.FA.A.0005.211024T0900Z-211025T1000Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Southwestern Humboldt-Southern Humboldt Interior-Southern Trinity- Northeastern Mendocino Interior-Northern Lake- 325 PM PDT Sat Oct 23 2021 ...FLOOD WATCH REMAINS IN EFFECT FROM 2 AM PDT SUNDAY THROUGH LATE SUNDAY NIGHT... The Flood Watch continues for * A portion of northwest California, including the following areas, Northeastern Mendocino Interior, Northern Lake, Southern Humboldt Interior, Southern Trinity, and Southwestern Humboldt. * From 2 AM PDT Sunday through late Sunday night * 3 to 6 inches of rain are forecast to fall Sunday for coastal and valley locations, with 5 to 8 inches possible along southwest facing mountains and ridges. Heavy rain combined with saturated soil from recent rains across the mountains will contribute toward possible flooding. Additionally, rain rates during Sunday morning may near threshold values for flash flooding in the August Complex, with hourly rainfall rates possibly reaching 1 to 1.2 inches per hour. * Low lying areas, creeks, streams, culverts, and portions of urban areas may experience flooding due to heavy rainfall. Heavily burned areas may have an increased risk of flash flooding. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flood Watch means there is a potential for flooding based on current forecasts. You should monitor later forecasts and be alert for possible Flood Warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop. && $$ CAZ105-107-240630- /O.CON.KEKA.FA.A.0005.211024T0900Z-211025T0400Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Northern Humboldt Interior-Northern Trinity- 325 PM PDT Sat Oct 23 2021 ...FLOOD WATCH REMAINS IN EFFECT FROM 2 AM PDT SUNDAY THROUGH SUNDAY EVENING... The Flood Watch continues for * A portion of northwest California, including the following areas, Northern Humboldt Interior and Northern Trinity. * From 2 AM PDT Sunday through Sunday evening * 2 to 4 inches of rain are forecast to fall Sunday for valley locations, with 3 to 6 inches possible along southwest facing mountains and ridges. Heavy rain combined with saturated soil from recent rains across the mountains will contribute toward possible flooding. Additionally, rain rates during Sunday morning may near threshold values for flash flooding in the River Complex, particularly Coffee Creek with hourly rainfall rates possibly reaching 0.5 to 0.75 inches per hour. Rainfall rates are not currently expected to reach thresholds for the Monument burn scar, although rock and mud slides are possible along with increased runoff. * Low lying areas, creeks, streams, culverts, and portions of urban areas may experience flooding due to heavy rainfall. Heavily burned areas may have an increased risk of flash flooding. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flood Watch means there is a potential for flooding based on current forecasts. You should monitor later forecasts and be alert for possible Flood Warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop. && $$ CAZ101>103-240630- /O.CON.KEKA.FA.A.0005.211024T0900Z-211025T0400Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Coastal Del Norte-Del Norte Interior-Northern Humboldt Coast- 325 PM PDT Sat Oct 23 2021 ...FLOOD WATCH REMAINS IN EFFECT FROM 2 AM PDT SUNDAY THROUGH SUNDAY EVENING... The Flood Watch continues for * A portion of northwest California, including the following areas, Coastal Del Norte, Del Norte Interior, and Northern Humboldt Coast. * From 2 AM PDT Sunday through Sunday evening * 1 to 3 inches of rain are forecast to fall Sunday in coastal and valley locations, with 3 to 4 inches possible in the coastal mountains. Heavy rain combined with saturated soil from recent rains across the mountains will contribute toward possible small stream and urban flooding. * Low lying areas, creeks, streams, culverts, and portions of urban areas may experience flooding due to heavy rainfall. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flood Watch means there is a potential for flooding based on current forecasts. You should monitor later forecasts and be alert for possible Flood Warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop. && $$ CAZ109-110-112-113-115-240630- /O.CON.KEKA.FA.A.0005.211024T0900Z-211025T1000Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Mendocino Coast-Northwestern Mendocino Interior- Southwestern Mendocino Interior-Southeastern Mendocino Interior- Southern Lake- 325 PM PDT Sat Oct 23 2021 ...FLOOD WATCH REMAINS IN EFFECT FROM 2 AM PDT SUNDAY THROUGH LATE SUNDAY NIGHT... The Flood Watch continues for * A portion of northwest California, including the following areas, Mendocino Coast, Northwestern Mendocino Interior, Southeastern Mendocino Interior, Southern Lake, and Southwestern Mendocino Interior. * From 2 AM PDT Sunday through late Sunday night * 2 to 5 inches of rain are forecast to fall Sunday for coastal and valley locations, with 5 to 8 inches possible along southwest facing mountains and ridges. Heavy rain combined with saturated soil from recent rains across the mountains will contribute toward possible flooding. * Low lying areas, creeks, streams, culverts, and portions of urban areas may experience flooding due to heavy rainfall. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flood Watch means there is a potential for flooding based on current forecasts. You should monitor later forecasts and be alert for possible Flood Warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop. && $$
093 WGUS66 KEKA 240553 FFAEKA Flood Watch National Weather Service Eureka CA 1053 PM PDT Sat Oct 23 2021 .An atmospheric river is forecast to focus over northwestern California tonight into Sunday before shifting southward Sunday afternoon. Periods of moderate to heavy rainfall are expected with this system on top of areas where soils have been saturated from recent rains. Areas of coastal Del Norte and Humboldt County will only see around an inch of rainfall due to downsloping and drying southeast winds, which will mitigate impacts there. CAZ104-106-108-111-114-241500- /O.CON.KEKA.FA.A.0005.211024T0900Z-211025T1000Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Southwestern Humboldt-Southern Humboldt Interior-Southern Trinity- Northeastern Mendocino Interior-Northern Lake- 1053 PM PDT Sat Oct 23 2021 ...FLOOD WATCH REMAINS IN EFFECT FROM 2 AM PDT SUNDAY THROUGH LATE SUNDAY NIGHT... The Flood Watch continues for * A portion of northwest California, including the following areas, Northeastern Mendocino Interior, Northern Lake, Southern Humboldt Interior, Southern Trinity, and Southwestern Humboldt. * From 2 AM PDT Sunday through late Sunday night * 3 to 6 inches of rain are forecast to fall Sunday for coastal and valley locations, with 5 to 8 inches possible along southwest facing mountains and ridges. Heavy rain combined with saturated soil from recent rains across the mountains will contribute toward possible flooding. Additionally, rain rates during Sunday morning may near threshold values for flash flooding in the August Complex, with hourly rainfall rates possibly reaching 1 to 1.2 inches per hour. * Low lying areas, creeks, streams, culverts, and portions of urban areas may experience flooding due to heavy rainfall. Heavily burned areas may have an increased risk of flash flooding. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flood Watch means there is a potential for flooding based on current forecasts. You should monitor later forecasts and be alert for possible Flood Warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop. && $$ CAZ105-107-241500- /O.CON.KEKA.FA.A.0005.211024T0900Z-211025T0400Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Northern Humboldt Interior-Northern Trinity- 1053 PM PDT Sat Oct 23 2021 ...FLOOD WATCH REMAINS IN EFFECT FROM 2 AM PDT SUNDAY THROUGH SUNDAY EVENING... The Flood Watch continues for * A portion of northwest California, including the following areas, Northern Humboldt Interior and Northern Trinity. * From 2 AM PDT Sunday through Sunday evening * 2 to 4 inches of rain are forecast Sunday for valley locations, with 3 to 6 inches possible along southwest facing mountains and ridges. Heavy rain combined with saturated soil from recent rains across the mountains will contribute toward possible flooding. Additionally, rain rates during Sunday morning may near threshold values for flash flooding in the River Complex, particularly Coffee Creek with hourly rainfall rates possibly reaching 0.5 to 0.75 inches per hour. Rainfall rates are not currently expected to reach thresholds for the Monument burn scar, although rock and mud slides are possible along with increased runoff. * Low lying areas, creeks, streams, culverts, and portions of urban areas may experience flooding due to heavy rainfall. Heavily burned areas may have an increased risk of flash flooding. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flood Watch means there is a potential for flooding based on current forecasts. You should monitor later forecasts and be alert for possible Flood Warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop. && $$ CAZ101>103-241500- /O.CON.KEKA.FA.A.0005.211024T0900Z-211025T0400Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Coastal Del Norte-Del Norte Interior-Northern Humboldt Coast- 1053 PM PDT Sat Oct 23 2021 ...FLOOD WATCH REMAINS IN EFFECT FROM 2 AM PDT SUNDAY THROUGH SUNDAY EVENING... The Flood Watch continues for * A portion of northwest California, including the following areas, Coastal Del Norte, Del Norte Interior, and Northern Humboldt Coast. * From 2 AM PDT Sunday through Sunday evening * 1 to 2 inches of rain are forecast to fall Sunday in coastal and valley locations, with 3 to 4 inches possible in the coastal mountains. Heavy rain combined with saturated soil from recent rains across the mountains will contribute toward possible small stream and urban flooding. * Low lying areas, creeks, streams, culverts, and portions of urban areas may experience flooding due to heavy rainfall. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flood Watch means there is a potential for flooding based on current forecasts. You should monitor later forecasts and be alert for possible Flood Warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop. && $$ CAZ109-110-112-113-115-241500- /O.CON.KEKA.FA.A.0005.211024T0900Z-211025T1000Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Mendocino Coast-Northwestern Mendocino Interior- Southwestern Mendocino Interior-Southeastern Mendocino Interior- Southern Lake- 1053 PM PDT Sat Oct 23 2021 ...FLOOD WATCH REMAINS IN EFFECT FROM 2 AM PDT SUNDAY THROUGH LATE SUNDAY NIGHT... The Flood Watch continues for * A portion of northwest California, including the following areas, Mendocino Coast, Northwestern Mendocino Interior, Southeastern Mendocino Interior, Southern Lake, and Southwestern Mendocino Interior. * From 2 AM PDT Sunday through late Sunday night * 2 to 5 inches of rain are forecast to fall Sunday for coastal and valley locations, with 5 to 8 inches possible along southwest facing mountains and ridges. Heavy rain combined with saturated soil from recent rains across the mountains will contribute toward possible flooding. * Low lying areas, creeks, streams, culverts, and portions of urban areas may experience flooding due to heavy rainfall. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flood Watch means there is a potential for flooding based on current forecasts. You should monitor later forecasts and be alert for possible Flood Warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop. && $$
355 WGUS66 KEKA 241045 FFAEKA Flood Watch National Weather Service Eureka CA 345 AM PDT Sun Oct 24 2021 .An atmospheric river will gradually shift south today. Periods of moderate to heavy rainfall are expected with this system on top of areas where soils have been saturated from recent rains. CAZ101-103-241145- /O.CAN.KEKA.FA.A.0005.000000T0000Z-211025T0400Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Coastal Del Norte-Northern Humboldt Coast- 345 AM PDT Sun Oct 24 2021 ...FLOOD WATCH IS CANCELLED... The Flood Watch for coastal Del Norte County and the northern Humboldt Coast has been cancelled. Downslope winds will keep storm total rainfall near or below 2 inches in most areas. Localized street flooding remains possible in locations with poor drainage. $$ CAZ104-106-108-111-114-242200- /O.CON.KEKA.FA.A.0005.000000T0000Z-211025T1000Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Southwestern Humboldt-Southern Humboldt Interior-Southern Trinity- Northeastern Mendocino Interior-Northern Lake- 345 AM PDT Sun Oct 24 2021 ...FLOOD WATCH REMAINS IN EFFECT THROUGH LATE TONIGHT... The Flood Watch continues for * A portion of northwest California, including the following areas, Northeastern Mendocino Interior, Northern Lake, Southern Humboldt Interior, Southern Trinity, and Southwestern Humboldt. * Through late tonight. * 3 to 6 inches of rain are forecast to fall today for coastal and valley locations, with 5 to 8 inches possible along southwest facing ridges. Heavy rain, combined with saturated soil from recent rains, will contribute to possible flooding. Additionally, rain rates this morning may approach threshold values for flash flooding in the August Complex burn scar, with hourly rainfall rates possibly reaching 1 to 1.2 inches per hour. * Low-lying areas, creeks, streams, culverts, and portions of urban areas may experience flooding due to heavy rainfall. Heavily burned areas may have an increased risk of flash flooding. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flood Watch means there is a potential for flooding based on current forecasts. Monitor later forecasts and be alert for possible Flood Warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop. $$ CAZ105-107-242200- /O.CON.KEKA.FA.A.0005.000000T0000Z-211025T0400Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Northern Humboldt Interior-Northern Trinity- 345 AM PDT Sun Oct 24 2021 ...FLOOD WATCH REMAINS IN EFFECT THROUGH THIS EVENING... The Flood Watch continues for * A portion of northwest California, including the following areas, Northern Humboldt Interior and Northern Trinity. * Through this evening. * 2 to 4 inches of rain are forecast for valley locations, with 3 to 6 inches possible along southwest facing ridges. Heavy rain, combined with saturated soil from recent rains, will contribute to possible flooding. Additionally, rain rates this morning may approach threshold values for flash flooding in the River Complex burn scar, particularly Coffee Creek, with hourly rainfall rates possibly reaching 0.5 to 0.75 inches per hour. Rainfall rates are not currently expected to reach thresholds for the Monument burn scar, although rock and mud slides are possible along with increased runoff. * Low-lying areas, creeks, streams, culverts, and portions of urban areas may experience flooding due to heavy rainfall. Heavily burned areas may have an increased risk of flash flooding. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flood Watch means there is a potential for flooding based on current forecasts. Monitor later forecasts and be alert for possible Flood Warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop. $$ CAZ102-242200- /O.CON.KEKA.FA.A.0005.000000T0000Z-211025T0400Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Del Norte Interior- 345 AM PDT Sun Oct 24 2021 ...FLOOD WATCH REMAINS IN EFFECT THROUGH THIS EVENING... The Flood Watch continues for * A portion of northwest California, including the following area, Del Norte Interior. * Through this evening. * 1 to 2 inches of rain are forecast to fall today in valley locations, with 3 to 4 inches possible in the mountains. Heavy rain, combined with saturated soil from recent rains, across the mountains will contribute toward possible small stream and urban flooding. * Low-lying areas, creeks, streams, culverts, and portions of urban areas may experience flooding due to heavy rainfall. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flood Watch means there is a potential for flooding based on current forecasts. Monitor later forecasts and be alert for possible Flood Warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop. $$ CAZ109-110-112-113-115-242200- /O.CON.KEKA.FA.A.0005.000000T0000Z-211025T1000Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Mendocino Coast-Northwestern Mendocino Interior- Southwestern Mendocino Interior-Southeastern Mendocino Interior- Southern Lake- 345 AM PDT Sun Oct 24 2021 ...FLOOD WATCH REMAINS IN EFFECT THROUGH LATE TONIGHT... The Flood Watch continues for * A portion of northwest California, including the following areas, Mendocino Coast, Northwestern Mendocino Interior, Southeastern Mendocino Interior, Southern Lake, and Southwestern Mendocino Interior. * Through late tonight * 2 to 5 inches of rain are forecast to fall today for coastal and valley locations, with 5 to 8 inches possible along southwest facing ridges. Heavy rain, combined with saturated soil from recent rains, will contribute to possible flooding. * Low-lying areas, creeks, streams, culverts, and portions of urban areas may experience flooding due to heavy rainfall. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flood Watch means there is a potential for flooding based on current forecasts. Monitor later forecasts and be alert for possible Flood Warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop. $$
186 WGUS66 KEKA 242217 FFAEKA Flood Watch National Weather Service Eureka CA 317 PM PDT Sun Oct 24 2021 .Rain rates have diminished across most of the area, but showers, some occasionally heavy, will continue into tonight. Any areas of standing water and localized minor flooding should begin to recede with improving conditions tonight, as streams and creeks lower. CAZ104-106-108-111-114-250630- /O.CON.KEKA.FA.A.0005.000000T0000Z-211025T1000Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Southwestern Humboldt-Southern Humboldt Interior-Southern Trinity- Northeastern Mendocino Interior-Northern Lake- 317 PM PDT Sun Oct 24 2021 ...FLOOD WATCH REMAINS IN EFFECT UNTIL 3 AM PDT MONDAY... The Flood Watch continues for * A portion of northwest California, including the following areas, Northeastern Mendocino Interior, Northern Lake, Southern Humboldt Interior, Southern Trinity, and Southwestern Humboldt. * Until 3 AM PDT Monday * 3 to 7 inches of rain has fallen across much of the area, resulting in some areas of localized minor flooding due near small streams, in urban areas, and other low-lying areas with poor drainage. An additional half inch to an inch of rain through tonight may exacerbate any lingering impacts while water begins to recede. * Low-lying areas, creeks, streams, culverts, and portions of urban areas may experience flooding due to heavy rainfall. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flood Watch means there is a potential for flooding based on current forecasts. Monitor later forecasts and be alert for possible Flood Warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop. $$ CAZ105-107-250400- /O.CON.KEKA.FA.A.0005.000000T0000Z-211025T0400Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Northern Humboldt Interior-Northern Trinity- 317 PM PDT Sun Oct 24 2021 ...FLOOD WATCH REMAINS IN EFFECT UNTIL 9 PM PDT THIS EVENING... The Flood Watch continues for * A portion of northwest California, including the following areas, Northern Humboldt Interior and Northern Trinity. * Until 9 PM PDT this evening * 2 to 3 inches of rain has fallen across much of the area, resulting in some areas of localized minor flooding due near small streams, in urban areas, and other low-lying areas with poor drainage. An additional half inch to an inch of rain through tonight may exacerbate any lingering impacts while water begins to recede. * Low-lying areas, creeks, streams, culverts, and portions of urban areas may experience flooding due to heavy rainfall. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flood Watch means there is a potential for flooding based on current forecasts. Monitor later forecasts and be alert for possible Flood Warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop. $$ CAZ102-250400- /O.CON.KEKA.FA.A.0005.000000T0000Z-211025T0400Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Del Norte Interior- 317 PM PDT Sun Oct 24 2021 ...FLOOD WATCH REMAINS IN EFFECT UNTIL 9 PM PDT THIS EVENING... The Flood Watch continues for * A portion of northwest California, including the following area, Del Norte Interior. * Until 9 PM PDT this evening * 1 to 2 inches of rain have fallen, with an additional half inch to an inch forecast through tonight. Combined with saturated soil from recent rains, this may contribute to some minor small stream and urban flooding. * Low-lying areas, creeks, streams, culverts, and portions of urban areas may experience minor flooding. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flood Watch means there is a potential for flooding based on current forecasts. Monitor later forecasts and be alert for possible Flood Warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop. $$ CAZ109-110-112-113-115-250630- /O.CON.KEKA.FA.A.0005.000000T0000Z-211025T1000Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Mendocino Coast-Northwestern Mendocino Interior- Southwestern Mendocino Interior-Southeastern Mendocino Interior- Southern Lake- 317 PM PDT Sun Oct 24 2021 ...FLOOD WATCH REMAINS IN EFFECT UNTIL 3 AM PDT MONDAY... The Flood Watch continues for * A portion of northwest California, including the following areas, Mendocino Coast, Northwestern Mendocino Interior, Southeastern Mendocino Interior, Southern Lake, and Southwestern Mendocino Interior. * Until 3 AM PDT Monday * 4 to 7 inches of rain has fallen across much of the area, resulting in some areas of localized minor flooding due near small streams, in urban areas, and other low-lying areas with poor drainage. An additional half inch to an inch of rain through tonight may exacerbate any lingering impacts while water begins to recede. * Low-lying areas, creeks, streams, culverts, and portions of urban areas may experience flooding due to heavy rainfall. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flood Watch means there is a potential for flooding based on current forecasts. Monitor later forecasts and be alert for possible Flood Warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop. $$
888 WGUS66 KEKA 250355 FFAEKA Flood Watch National Weather Service Eureka CA 855 PM PDT Sun Oct 24 2021 CAZ104-106-108>115-250500- /O.CAN.KEKA.FA.A.0005.000000T0000Z-211025T1000Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Southwestern Humboldt-Southern Humboldt Interior-Southern Trinity- Mendocino Coast-Northwestern Mendocino Interior- Northeastern Mendocino Interior-Southwestern Mendocino Interior- Southeastern Mendocino Interior-Northern Lake-Southern Lake- 855 PM PDT Sun Oct 24 2021 ...FLOOD WATCH IS CANCELLED... The Flood Watch for a portion of northwest California has been cancelled. 2 to 4 inches of rain fell over much of Trinity County, interior Humboldt and the mountains of eastern Del Norte, with 4 to 8 inches of rain across Mendocino and Lake Counties. Steadier rain will continue to shift southward out of Lake County this evening. While some additional showers will continue overnight, additional rainfall amounts will be relatively minor. While some creeks and streams will continue to run near bankfull, they will recede tonight, and standing water in areas of poor drainage will recede. Otherwise, the threat of urban and small stream-related flooding has ended. $$ CAZ102-105-107-250500- /O.CAN.KEKA.FA.A.0005.000000T0000Z-211025T0400Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Del Norte Interior-Northern Humboldt Interior-Northern Trinity- 855 PM PDT Sun Oct 24 2021 ...FLOOD WATCH IS CANCELLED... The Flood Watch for a portion of northwest California has been cancelled. 2 to 4 inches of rain fell over much of Trinity County, interior Humboldt and the mountains of eastern Del Norte. While some additional showers will continue overnight, additional rainfall amounts will be relatively minor. The threat of urban and small stream-related flooding has ended. $$
The office that day
Everything else NWS Eureka, CA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 21, 8:17 PM PDT | Flash Flood Watch | EKA | 10 hr | |
| Oct 21, 9:01 PM PDT | Small Craft Advisory | EKA | 50 hr | |
| Oct 22, 2:58 PM PDT | Gale Watch | EKA | 12 hr | |
| Oct 22, 2:58 PM PDT | Hazardous Seas Watch | EKA | 24 hr | |
| Oct 22, 3:02 PM PDT | Wind Advisory | EKA | Del Norte, Humboldt, Mendocino | 47 hr |
Nearby
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.