Alert archive / California / Winter Storm Warnings in 2021
Winter Storm Warning 8, NWS Eureka, CA
NWS Eureka, CA issued this winter storm warning at Dec 14, 2021, 2:21 PM PST for 5 counties in California. It took effect at Dec 15, 2021, 4:00 AM PST. It was in force for 18 hr. 6 reports came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Dec 14, 2021, 2:21 PM PST (22:21 UTC)
- In effect from
- Dec 15, 2021, 4:00 AM PST
- Expired
- Dec 15, 2021, 10:00 PM PST
- In force
- 18 hr
- 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 22:23 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Dec 15, 8:00 AM PST | SNOW 3 | 3 Wsw Willow Creek, CA | COUNTY OFFICIAL REPORTS 3 INCHES OF NEW SNOW THAT FELL AROUND 4,600 FEET OVER A 24-HOUR PERIOD. |
| Dec 15, 10:00 AM PST | SNOW 3 | 4 Wsw Dinsmore, CA | TRAINED SPOTTER REPORTS 3 INCHES THAT FELL DURING A 4-HOUR PERIOD AT AN ELEVATION 2,625 FEET FROM 6 A.M. TO 10 A.M. STATION ELEVATION: 2625 FT. |
| Dec 15, 11:45 AM PST | SNOW 2 | 1 E Weaverville, CA | SOCIAL MEDIA REPORT OF 2 INCHES THAT FELL AT AN ELEVATION AROUND 2,500 FEET AT EAST WEAVER CAMPGROUND FOR A DURATION AROUND 3.5 HOURS. |
| Dec 15, 1:30 PM PST | SNOW 10 | 10 Ne Weaverville, CA | TRAINED SPOTTER REPORTS 10 INCHES OF SNOW AT 2,650 FEET THAT FELL OVER A 7.5 HOUR DURATION. |
| Dec 15, 5:00 PM PST | SNOW 4 | 2 Wnw Ruth, CA | TRAINED SPOTTER REPORTS 4 INCHES FELL DURING A 9-HOUR PERIOD AT AN ELEVATION OF 3,099 FEET. |
| Dec 15, 5:16 PM PST | SNOW 7 | 3 Wsw Lewiston, CA | WET SNOW FALLING ALL DAY, MEASURED VALUE IS TOTAL AS OF 5 PM LST. STATION ELEVATION: 1808 FT. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Medford/Jackson, OR (KMFR), launched 12:00Z, 10.4 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
- 3 J/kg
- Mixed-layer CIN
- -14 J/kg
- Mixed-layer LCL
- 559 m above ground
- 0-6 km bulk shear
- 71 kt
- 0-1 km storm-relative helicity
- 14 m²/s²
- 0-3 km storm-relative helicity
- 21 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
325 WWUS46 KEKA 142221 WSWEKA URGENT - WINTER WEATHER MESSAGE National Weather Service Eureka CA 221 PM PST Tue Dec 14 2021 ...WINTER WEATHER WILL CONTINUE THROUGH WEDNESDAY... Heavy snow has come to an end across much of northwest California. However, another storm system will produce moderate to heavy snow accumulations for elevations as low 1000 to 2000 feet starting early Wednesday morning. CAZ114-142330- /O.CAN.KEKA.WS.A.0007.211215T1200Z-211216T0200Z/ Northern Lake- 221 PM PST Tue Dec 14 2021 ...WINTER STORM WATCH IS CANCELLED... $$ CAZ107-108-150630- /O.UPG.KEKA.WS.A.0007.211215T1200Z-211216T1000Z/ /O.NEW.KEKA.WS.W.0008.211215T1200Z-211216T1700Z/ Northern Trinity-Southern Trinity- 221 PM PST Tue Dec 14 2021 ...WINTER STORM WARNING IN EFFECT FROM 4 AM WEDNESDAY TO 9 AM PST THURSDAY ABOVE 1000 FEET... * WHAT...Heavy snow expected above 1000 feet. Total snow accumulations of 10 to 21 inches. Winds gusting as high as 45 mph. * WHERE...Northern Trinity and Southern Trinity Counties. * WHEN...From 4 AM Wednesday to 9 AM PST Thursday. * IMPACTS...Travel could be very difficult to impossible. The hazardous conditions could impact the morning or evening commute. Gusty winds could bring down tree branches. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for the state of California can be obtained by calling 1-800-GAS-ROAD. && $$ CAZ102-105-106-110-111-150630- /O.UPG.KEKA.WS.A.0007.211215T1200Z-211216T0200Z/ /O.NEW.KEKA.WW.Y.0021.211215T1200Z-211216T1700Z/ Del Norte Interior-Northern Humboldt Interior- Southern Humboldt Interior-Northwestern Mendocino Interior- Northeastern Mendocino Interior- 221 PM PST Tue Dec 14 2021 ...WINTER WEATHER ADVISORY IN EFFECT FROM 4 AM WEDNESDAY TO 9 AM PST THURSDAY ABOVE 1500 FEET... * WHAT...Snow expected above 1500 feet. Total snow accumulations of up to 18 inches. Winds gusting as high as 55 mph. * WHERE...Del Norte Interior, Northern Humboldt Interior, Southern Humboldt Interior, Northwestern Mendocino Interior and Northeastern Mendocino Interior Counties. * WHEN...From 4 AM Wednesday to 9 AM PST Thursday. * IMPACTS...Travel could be very difficult to impossible. The hazardous conditions could impact the morning or evening commute. Gusty winds could bring down tree branches. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state of California can be obtained by calling 1-800-GAS-ROAD. && $$
8 follow-up statements
991 WWUS46 KEKA 142242 WSWEKA URGENT - WINTER WEATHER MESSAGE National Weather Service Eureka CA 242 PM PST Tue Dec 14 2021 ...WINTER WEATHER WILL CONTINUE THROUGH WEDNESDAY... Heavy snow has come to an end across much of Northwest California. However, another storm system will produce moderate to heavy snow accumulations for elevations as low 1000 to 2000 feet starting early Wednesday morning. CAZ107-108-150645- /O.CON.KEKA.WS.W.0008.211215T1200Z-211216T1700Z/ Northern Trinity-Southern Trinity- 242 PM PST Tue Dec 14 2021 ...WINTER STORM WARNING REMAINS IN EFFECT FROM 4 AM WEDNESDAY TO 9 AM PST THURSDAY ABOVE 1000 FEET... * WHAT...Heavy snow expected above 1000 feet. Total snow accumulations of 10 to 21 inches. Winds gusting as high as 45 mph. * WHERE...Southern Trinity and Northern Trinity Counties. * WHEN...From 4 AM Wednesday to 9 AM PST Thursday. * IMPACTS...Travel could be very difficult to impossible. The hazardous conditions could impact the morning or evening commute. Gusty winds could bring down tree branches. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for the state of California can be obtained by calling 1-800-GAS-ROAD. && $$ CAZ114-150645- /O.EXA.KEKA.WW.Y.0021.211215T1200Z-211216T1700Z/ Northern Lake- 242 PM PST Tue Dec 14 2021 ...WINTER WEATHER ADVISORY IN EFFECT FROM 4 AM WEDNESDAY TO 9 AM PST THURSDAY ABOVE 1500 FEET... * WHAT...Snow expected. Total snow accumulations of up to 10 inches. Winds gusting as high as 45 mph. * WHERE...Northern Lake County. * WHEN...From 4 AM Wednesday to 9 AM PST Thursday. * IMPACTS...Travel could be very difficult to impossible. The hazardous conditions could impact the morning or evening commute. Gusty winds could bring down tree branches. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state of California can be obtained by calling 1-800-GAS-ROAD. && $$ CAZ102-105-106-110-111-150645- /O.CON.KEKA.WW.Y.0021.211215T1200Z-211216T1700Z/ Del Norte Interior-Northern Humboldt Interior- Southern Humboldt Interior-Northwestern Mendocino Interior- Northeastern Mendocino Interior- 242 PM PST Tue Dec 14 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 4 AM WEDNESDAY TO 9 AM PST THURSDAY ABOVE 1500 FEET... * WHAT...Snow expected. Total snow accumulations of up to 17 inches. Winds gusting as high as 55 mph. * WHERE...Northeastern Mendocino Interior, Northwestern Mendocino Interior, Del Norte Interior, Northern Humboldt Interior and Southern Humboldt Interior Counties. * WHEN...From 4 AM Wednesday to 9 AM PST Thursday. * IMPACTS...Travel could be very difficult to impossible. The hazardous conditions could impact the morning or evening commute. Gusty winds could bring down tree branches. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state of California can be obtained by calling 1-800-GAS-ROAD. && $$
097 WWUS46 KEKA 150214 WSWEKA URGENT - WINTER WEATHER MESSAGE National Weather Service Eureka CA 614 PM PST Tue Dec 14 2021 ...WINTER WEATHER EXPECTED WEDNESDAY... Moderate to heavy precipitation will spread across a cold airmass located over interior portions of northwest California during Wednesday. Snow will be likely as a result, with valley floors being impacted across Trinity County, and ridges and highway passes impacted over Del Norte, Humboldt, Lake, and eastern Mendocino Counties. Snow will continue falling over portions of Trinity County during Wednesday night, and come to an end elsewhere during early Wednesday evening. CAZ107-108-151015- /O.CON.KEKA.WS.W.0008.211215T1200Z-211216T1700Z/ Northern Trinity-Southern Trinity- 614 PM PST Tue Dec 14 2021 ...WINTER STORM WARNING REMAINS IN EFFECT FROM 4 AM WEDNESDAY TO 9 AM PST THURSDAY ABOVE 1000 FEET... * WHAT...Heavy snow expected above 1000 feet. Total snow accumulations of 5 to 24 inches. Winds gusting as high as 50 mph. * WHERE...Southern Trinity and Northern Trinity Counties. * WHEN...From 4 AM Wednesday to 9 AM PST Thursday. * IMPACTS...Travel could be very difficult to impossible. The hazardous conditions could impact the morning or evening commute. Gusty winds could bring down tree branches. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for the state of California can be obtained by calling 1-800-GAS-ROAD. && $$ CAZ115-151015- /O.EXB.KEKA.WW.Y.0021.211215T1200Z-211216T0300Z/ Southern Lake- 614 PM PST Tue Dec 14 2021 ...WINTER WEATHER ADVISORY IN EFFECT FROM 4 AM TO 7 PM PST WEDNESDAY ABOVE 2000 FEET... * WHAT...Snow expected above 2000 feet. Total snow accumulations of up to 5 inches. Winds gusting as high as 45 mph. * WHERE...Southern Lake County. * WHEN...From 4 AM to 7 PM PST Wednesday. * IMPACTS...Travel could be very difficult. The hazardous conditions could impact the morning or evening commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state of California can be obtained by calling 1-800-GAS-ROAD. && $$ CAZ102-105-106-110-111-114-151015- /O.EXT.KEKA.WW.Y.0021.211215T1200Z-211216T0300Z/ Del Norte Interior-Northern Humboldt Interior- Southern Humboldt Interior-Northwestern Mendocino Interior- Northeastern Mendocino Interior-Northern Lake- 614 PM PST Tue Dec 14 2021 ...WINTER WEATHER ADVISORY NOW IN EFFECT FROM 4 AM TO 7 PM PST WEDNESDAY ABOVE 2000 FEET... * WHAT...Snow expected above 2000 feet. Total snow accumulations of 5 to 12 inches. Winds gusting as high as 60 mph. * WHERE...Portions of northwest California. * WHEN...From 4 AM to 7 PM PST Wednesday. * IMPACTS...Travel could be very difficult to impossible. The hazardous conditions could impact the morning or evening commute. Strong winds could cause tree damage. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state of California can be obtained by calling 1-800-GAS-ROAD. && $$
358 WWUS46 KEKA 150653 WSWEKA URGENT - WINTER WEATHER MESSAGE National Weather Service Eureka CA 1053 PM PST Tue Dec 14 2021 ...WINTER WEATHER EXPECTED WEDNESDAY... Moderate to heavy precipitation will spread across a cold airmass located over interior portions of northwest California during Wednesday. Snow will be likely as a result, with valley floors being impacted across Trinity County, and ridges and highway passes impacted over Del Norte, Humboldt, Lake, and eastern Mendocino Counties. Snow will continue falling over portions of Trinity County during Wednesday night, and come to an end elsewhere during early Wednesday evening. CAZ107-108-151500- /O.CON.KEKA.WS.W.0008.211215T1200Z-211216T1700Z/ Northern Trinity-Southern Trinity- 1053 PM PST Tue Dec 14 2021 ...WINTER STORM WARNING REMAINS IN EFFECT FROM 4 AM WEDNESDAY TO 9 AM PST THURSDAY ABOVE 1000 FEET... * WHAT...Heavy snow expected above 1000 feet. Total snow accumulations of 5 to 24 inches. Winds gusting as high as 50 mph. * WHERE...Southern Trinity and Northern Trinity Counties. * WHEN...From 4 AM Wednesday to 9 AM PST Thursday. * IMPACTS...Travel could be very difficult to impossible. The hazardous conditions could impact the morning or evening commute. Gusty winds could bring down tree branches. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for the state of California can be obtained by calling 1-800-GAS-ROAD. && $$ CAZ102-105-106-110-111-114-115-151500- /O.CON.KEKA.WW.Y.0021.211215T1200Z-211216T0300Z/ Del Norte Interior-Northern Humboldt Interior- Southern Humboldt Interior-Northwestern Mendocino Interior- Northeastern Mendocino Interior-Northern Lake-Southern Lake- 1053 PM PST Tue Dec 14 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 4 AM TO 7 PM PST WEDNESDAY ABOVE 2000 FEET... * WHAT...Snow expected above 2000 feet. Total snow accumulations of 5 to 12 inches. Winds gusting as high as 60 mph. * WHERE...Portions of northwest California. * WHEN...From 4 AM to 7 PM PST Wednesday. * IMPACTS...Travel could be very difficult to impossible. The hazardous conditions could impact the morning or evening commute. Strong winds could cause tree damage. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state of California can be obtained by calling 1-800-GAS-ROAD. && $$
732 WWUS46 KEKA 151336 WSWEKA URGENT - WINTER WEATHER MESSAGE National Weather Service Eureka CA 536 AM PST Wed Dec 15 2021 ...WINTER WEATHER EXPECTED WEDNESDAY... Moderate to heavy precipitation will spread across a cold airmass located over interior portions of northwest California today. Snow is likely, with valley floors being impacted across Trinity County, and ridges and highway passes impacted over Del Norte, Humboldt, Lake, and eastern Mendocino Counties. Snow will continue falling over portions of Trinity County during Wednesday night, and come to an end elsewhere during early Wednesday evening. CAZ107-108-152145- /O.CON.KEKA.WS.W.0008.000000T0000Z-211216T1700Z/ Northern Trinity-Southern Trinity- 536 AM PST Wed Dec 15 2021 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 9 AM PST THURSDAY ABOVE 1000 FEET... * WHAT...Heavy snow above 1000 feet. Additional snow accumulations of 1 to 7 inches along valley floors and passes and 12 to 24 inches along high elevation peaks and ridges. Winds gusting as high as 50 mph. * WHERE...Southern Trinity and Northern Trinity Counties. * WHEN...Until 9 AM PST Thursday. * IMPACTS...Travel could be very difficult to impossible. The hazardous conditions could impact the morning or evening commute. Gusty winds could bring down tree branches. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for the state of California can be obtained by calling 1-800-GAS-ROAD. && $$ CAZ102-105-106-110-111-114-115-152145- /O.EXT.KEKA.WW.Y.0021.000000T0000Z-211216T0000Z/ Del Norte Interior-Northern Humboldt Interior- Southern Humboldt Interior-Northwestern Mendocino Interior- Northeastern Mendocino Interior-Northern Lake-Southern Lake- 536 AM PST Wed Dec 15 2021 ...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 4 PM PST THIS AFTERNOON ABOVE 2000 FEET... * WHAT...Snow above 2000 feet. Additional snow accumulations of up 1 to 4 inches along highway mountain passes and 3 to 13 inches along high elevation peaks and ridges. Winds gusting as high as 55 mph. * WHERE...Portions of northwest California. * WHEN...Until 4 PM PST this afternoon. * IMPACTS...Travel could be very difficult to impossible. The hazardous conditions could impact the morning commute. Strong winds could cause tree damage. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state of California can be obtained by calling 1-800-GAS-ROAD. && $$
566 WWUS46 KEKA 151654 WSWEKA URGENT - WINTER WEATHER MESSAGE National Weather Service Eureka CA 854 AM PST Wed Dec 15 2021 ...WINTER WEATHER CONTINUES... Moderate to heavy precipitation will spread across a cold airmass located over interior portions of northwest California today. Snow is likely, with valley floors being impacted across Trinity County, and ridges and highway passes impacted over Del Norte, Humboldt, Lake, and eastern Mendocino Counties. Snow will continue falling over portions of Trinity County today and tonight. Snow will diminish across other areas this afternoon and evening. CAZ107-108-160100- /O.CON.KEKA.WS.W.0008.000000T0000Z-211216T1700Z/ Northern Trinity-Southern Trinity- 854 AM PST Wed Dec 15 2021 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 9 AM PST THURSDAY ABOVE 1000 FEET... * WHAT...Heavy snow above 1500 feet. Additional snow accumulations of 6 to 12 inches through Thursday morning...with heavier snow above 3000 feet. * WHERE...Southern Trinity and Northern Trinity Counties. * WHEN...Until 9 AM PST Thursday. * IMPACTS...Travel could be very difficult to impossible. The hazardous conditions could impact the morning or evening commute. Gusty winds could bring down tree branches. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for the state of California can be obtained by calling 1-800-GAS-ROAD. && $$ CAZ102-105-106-110-111-114-115-160000- /O.CON.KEKA.WW.Y.0021.000000T0000Z-211216T0000Z/ Del Norte Interior-Northern Humboldt Interior- Southern Humboldt Interior-Northwestern Mendocino Interior- Northeastern Mendocino Interior-Northern Lake-Southern Lake- 854 AM PST Wed Dec 15 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 4 PM PST THIS AFTERNOON BETWEEN 2000 TO 3000 FEET... * WHAT...Snow above 2000 feet during the morning hours with snow accumulations of 3 to 6 inches. Snow levels rising to 3000 ft in the afternoon. * WHERE...Portions of northwest California. * WHEN...Until 4 PM PST this afternoon. * IMPACTS...Travel could be very difficult to impossible. Strong winds could cause tree damage. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state of California can be obtained by calling 1-800-GAS-ROAD. && $$
194 WWUS46 KEKA 152117 WSWEKA URGENT - WINTER WEATHER MESSAGE National Weather Service Eureka CA 117 PM PST Wed Dec 15 2021 ...AREAS OF HEAVY SNOW TO CONTINUE THROUGH EARLY EVENING... Snow levels will gradually rise this afternoon and range from 2500 to 3500 feet. Heaviest snow continues across portions of Trinity County where an additional 4 to 8 inches is possible through this evening. Greater amounts are likely above 3500 feet. Precipitation rates will taper off during the evening but scattered rain and snow showers are likely through the night. CAZ115-152230- /O.CAN.KEKA.WW.Y.0021.000000T0000Z-211216T0000Z/ Southern Lake- 117 PM PST Wed Dec 15 2021 ...WINTER WEATHER ADVISORY IS CANCELLED FOR SOUTHERN lAKE COUNTY DUE TO RISING SNOW LEVELS... $$ CAZ102-105-106-110-111-114-160300- /O.EXB.KEKA.WS.W.0008.000000T0000Z-211216T0300Z/ /O.CON.KEKA.WW.Y.0021.000000T0000Z-211216T0000Z/ Del Norte Interior-Northern Humboldt Interior- Southern Humboldt Interior-Northwestern Mendocino Interior- Northeastern Mendocino Interior-Northern Lake- 117 PM PST Wed Dec 15 2021 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 7 PM PST THIS EVENING FOR ELEVATIONS ABOVE 2500 FEET... * WHAT...Heavy snow across elevations ranging from 2500 to 3500 will continue through early evening. An additional 4 to 8 inches are possible. Locally, lower elevation communities could see 2 to 4 inches. Precipitation rates will taper off overnight but scattered rain or snow showers are likely through morning. * WHERE...Portions of northwest California interior above 2500 feet in elevation. * WHEN...For the Winter Storm Warning, until 7 PM PST this evening. * IMPACTS...Travel could be very difficult...especially over higher passes along Highways 3, 36 and 299. Gusty winds could bring down tree branches. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. Slow down and use caution while traveling. The latest road conditions for the state of California can be obtained by calling 1-800-GAS-ROAD. && $$ CAZ107-108-160300- /O.EXT.KEKA.WS.W.0008.000000T0000Z-211216T0300Z/ Northern Trinity-Southern Trinity- 117 PM PST Wed Dec 15 2021 ...WINTER STORM WARNING NOW IN EFFECT UNTIL 7 PM PST THIS EVENING ABOVE 2000 FEET IN ELEVATION... * WHAT...Areas of heavy snow. Additional snow accumulations of up 6 to 10 inches are possible above 2000 feet....with greater accumulations above 3000 feet. Precipitation rates are expected to taper off by early evening but scattered rain and snow showers will continue overnight. * WHERE...Southern Trinity and Northern Trinity Counties. * WHEN...Until 7 PM PST this evening. * IMPACTS...Travel could be very difficult to impossible along higher passes of highways 3, 36 and 299. Gusty winds could bring down tree branches. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for the state of California can be obtained by calling 1-800-GAS-ROAD. && $$
481 WWUS46 KEKA 160258 WSWEKA URGENT - WINTER WEATHER MESSAGE National Weather Service Eureka CA 658 PM PST Wed Dec 15 2021 ...AREAS OF HEAVY SNOW TO CONTINUE THROUGH EARLY EVENING... Snow levels will gradually rise overnight and range from 2500 to 3500 feet. Heaviest snow continues across portions of Trinity County where an additional 3 to 5 inches is possible through this evening. Greater amounts are likely above 3500 feet. Precipitation rates have tapered off this evening, although scattered rain and snow showers are likely through the night. CAZ102-105>108-110-111-114-160600- /O.EXT.KEKA.WS.W.0008.000000T0000Z-211216T0600Z/ Del Norte Interior-Northern Humboldt Interior- Southern Humboldt Interior-Northern Trinity-Southern Trinity- Northwestern Mendocino Interior-Northeastern Mendocino Interior- Northern Lake- 658 PM PST Wed Dec 15 2021 ...WINTER STORM WARNING NOW IN EFFECT UNTIL 10 PM PST THIS EVENING... * WHAT...Areas of heavy snow. Additional snow accumulations of up 3 to 5 inches are possible above 2000 feet...with greater accumulations above 3000 feet. Precipitation rates are expected to taper off before midnight but scattered rain and snow showers will likely continue overnight. * WHERE...Southern Trinity and Northern Trinity Counties. * WHEN...Until 10 PM PST this evening. * IMPACTS...Travel could be very difficult to impossible along higher passes of highways 3, 36 and 299. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for the state of California can be obtained by calling 1-800-GAS-ROAD. && $$
073 WWUS46 KEKA 160609 WSWEKA URGENT - WINTER WEATHER MESSAGE National Weather Service Eureka CA 1009 PM PST Wed Dec 15 2021 CAZ102-105>108-161415- /O.EXP.KEKA.WS.W.0008.000000T0000Z-211216T0600Z/ /O.NEW.KEKA.WW.Y.0022.211216T0609Z-211216T1500Z/ Del Norte Interior-Northern Humboldt Interior- Southern Humboldt Interior-Northern Trinity-Southern Trinity- 1009 PM PST Wed Dec 15 2021 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL 7 AM PST THURSDAY... * WHAT...Scattered snow showers may bring additional snow accumulations of up to 4 inches overnight, particularly at higher elevations. * WHERE...Del Norte Interior, Northern Humboldt Interior, Southern Humboldt Interior, Northern Trinity and Southern Trinity Counties. * WHEN...Until 7 AM PST Thursday. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the morning commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state of California can be obtained by calling 1-800-GAS-ROAD. && $$ CAZ110-111-114-160715- /O.EXP.KEKA.WS.W.0008.000000T0000Z-211216T0600Z/ Northwestern Mendocino Interior-Northeastern Mendocino Interior- Northern Lake- 1009 PM PST Wed Dec 15 2021 ...WINTER STORM WARNING HAS EXPIRED... Scattered rain and snow showers are expected through the night, but new accumulations are expected to remain below 2 inches. $$
The office that day
Everything else NWS Eureka, CA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 13, 6:05 PM PST | High Wind Watch | EKA | Del Norte | 18 hr |
| Dec 13, 6:05 PM PST | Wind Advisory | EKA | Del Norte, Humboldt, Lake, Mendocino, Trinity | 45 hr |
| Dec 14, 2:42 AM PST | Small Craft Advisory | EKA | 25 hr | |
| Dec 14, 2:42 AM PST | Hazardous Seas Warning | EKA | 6 hr | |
| Dec 14, 12:16 PM PST | High Wind Warning | EKA | Del Norte | 27 hr |
| Dec 14, 2:21 PM PST | Winter Weather Advisory | EKA | Del Norte, Humboldt, Lake, Mendocino | 26 hr |
Nearby
Winter Storm Warnings in California, 2021Every winter storm warning in 2021
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.