Alert archive / California / Winter Weather Advisories in 2021
Winter Weather Advisory 13, NWS Eureka, CA
NWS Eureka, CA issued this winter weather advisory at Mar 7, 2021, 2:09 PM PST for 5 counties in California. It took effect at Mar 8, 2021, 1:00 PM PST. It was in force for 45 hr.
The area
The counties it named.
The facts
- Issued
- Mar 7, 2021, 2:09 PM PST (22:09 UTC)
- In effect from
- Mar 8, 2021, 1:00 PM PST
- Expired
- Mar 10, 2021, 10:00 AM PST
- In force
- 45 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 22:08 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, 10.2 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
- 1554 m above ground
- 0-6 km bulk shear
- 91 kt
- 0-1 km storm-relative helicity
- 200 m²/s²
- 0-3 km storm-relative helicity
- 299 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
009 WWUS46 KEKA 072209 WSWEKA URGENT - WINTER WEATHER MESSAGE National Weather Service Eureka CA 209 PM PST Sun Mar 7 2021 ...SNOW SHOWERS EXPECTED MONDAY THROUGH WEDNESDAY... .A cold upper level storm system will gradually move south across the northeastern Pacific through mid week. An extended period of showery weather will occur with the storm system. Showers across the mountains will produce accumulating snow. Travel impacts will be possible as a result across mountain roadways and highway passes. CAZ102-105>108-110-111-114-080615- /O.NEW.KEKA.WW.Y.0013.210308T2100Z-210310T1200Z/ Del Norte Interior-Northern Humboldt Interior- Southern Humboldt Interior-Northern Trinity-Southern Trinity- Northwestern Mendocino Interior-Northeastern Mendocino Interior- Northern Lake County- 209 PM PST Sun Mar 7 2021 ...WINTER WEATHER ADVISORY IN EFFECT FROM 1 PM MONDAY TO 4 AM PST WEDNESDAY ABOVE 2000 FEET... * WHAT...Snow expected above 2000 feet. Total snow accumulations from 4 to 12 inches. * WHERE...Del Norte Interior, Northern Humboldt Interior, Southern Humboldt Interior, Northern Trinity, Southern Trinity, Northwestern Mendocino Interior, Northeastern Mendocino Interior and Northern Lake County Counties. * WHEN...From 1 PM Monday to 4 AM PST Wednesday. * IMPACTS...Travel could be very difficult to impossible. The hazardous conditions could impact the morning or evening commute. * ADDITIONAL DETAILS...Highway passes impacted include Berry Summit on highway 299, Scott Mountain Summit on highway 3, Oregon Mountain on highway 299, South Fork Mountain on highway 36, and additional sections of highway 36 and 3 in Trinity County. 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. && $$
11 follow-up statements
714 WWUS46 KEKA 080602 WSWEKA URGENT - WINTER WEATHER MESSAGE National Weather Service Eureka CA 1002 PM PST Sun Mar 7 2021 ...SNOW SHOWERS EXPECTED MONDAY THROUGH WEDNESDAY... .A cold upper level storm system will gradually move south across the northeastern Pacific through mid week. An extended period of showery weather will occur with the storm system. Showers across the mountains will produce accumulating snow. Travel impacts will be possible as a result across mountain roadways and highway passes. CAZ102-105>108-110-111-114-081300- /O.CON.KEKA.WW.Y.0013.210308T2100Z-210310T1200Z/ Del Norte Interior-Northern Humboldt Interior- Southern Humboldt Interior-Northern Trinity-Southern Trinity- Northwestern Mendocino Interior-Northeastern Mendocino Interior- Northern Lake County- 1002 PM PST Sun Mar 7 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 1 PM MONDAY TO 4 AM PST WEDNESDAY ABOVE 2000 FEET... * WHAT...Snow expected above 2,000 feet. Total snow accumulations from 4 to 12 inches. * WHERE...Southern Trinity, Northeastern Mendocino Interior, Northwestern Mendocino Interior, Del Norte Interior, Northern Humboldt Interior, Northern Trinity, Southern Humboldt Interior and Northern Lake County Counties. * WHEN...From 1 PM Monday to 4 AM PST Wednesday. * IMPACTS...Travel could be very difficult to impossible. The hazardous conditions could impact the morning or evening commute. * ADDITIONAL DETAILS...Highway passes impacted include Berry Summit on Highway 299, Scott Mountain Summit on Highway 3, Oregon Mountain on Highway 299, South Fork Mountain on Highway 36, and additional sections of Highways 36 and 3 in Trinity County. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state of California can be obtained by calling 1-800-GAS-ROAD. && $$
405 WWUS46 KEKA 081126 WSWEKA URGENT - WINTER WEATHER MESSAGE National Weather Service Eureka CA 326 AM PST Mon Mar 8 2021 ...SNOW SHOWERS EXPECTED TODAY THROUGH WEDNESDAY... .A cold upper level storm system will gradually move south across the northeastern Pacific through mid week. An extended period of showery weather will occur with the storm system. Showers across the mountains will produce accumulating snow. Travel impacts will be possible as a result across mountain roadways and highway passes. Snow levels will fluctuate from 2,000 to 3,000 feet. CAZ102-105>108-110-111-114-081930- /O.CON.KEKA.WW.Y.0013.210308T2100Z-210310T1200Z/ Del Norte Interior-Northern Humboldt Interior- Southern Humboldt Interior-Northern Trinity-Southern Trinity- Northwestern Mendocino Interior-Northeastern Mendocino Interior- Northern Lake County- 326 AM PST Mon Mar 8 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 1 PM THIS AFTERNOON TO 4 AM PST WEDNESDAY ABOVE 2000 FEET... * WHAT...Snow expected above 2000 feet. Total snow accumulations of 4 to 12 inches. * WHERE...Southern Trinity, Northeastern Mendocino Interior, Northwestern Mendocino Interior, Del Norte Interior, Northern Humboldt Interior, Northern Trinity, Southern Humboldt Interior and Northern Lake County Counties. * WHEN...From 1 PM this afternoon to 4 AM PST Wednesday. * IMPACTS...Travel could be very difficult to impossible. The hazardous conditions could impact the morning or evening commute. * ADDITIONAL DETAILS...Highway passes impacted include Berry Summit on Highway 299, Scott Mountain Summit on Highway 3, Oregon Mountain on Highway 299, South Fork Mountain on Highway 36, and additional sections of Highways 36 and 3 in Trinity County. 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. && $$
957 WWUS46 KEKA 081658 WSWEKA URGENT - WINTER WEATHER MESSAGE National Weather Service Eureka CA 858 AM PST Mon Mar 8 2021 ...SNOW SHOWERS EXPECTED TODAY THROUGH WEDNESDAY... .A cold upper level storm system will gradually move south along the west coast through mid week. An extended period of showery weather will occur with the storm system. Showers across the mountains will produce accumulating snow. Travel impacts will be possible as a result across mountain roadways and highway passes. CAZ102-105>108-110-111-114-090100- /O.CON.KEKA.WW.Y.0013.210308T2100Z-210310T1200Z/ Del Norte Interior-Northern Humboldt Interior- Southern Humboldt Interior-Northern Trinity-Southern Trinity- Northwestern Mendocino Interior-Northeastern Mendocino Interior- Northern Lake County- 858 AM PST Mon Mar 8 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 1 PM THIS AFTERNOON TO 4 AM PST WEDNESDAY ABOVE 2000 FEET... * WHAT...Snow expected above 2000 feet. Total snow accumulations of 4 to 12 inches. * WHERE...Southern Trinity, Northeastern Mendocino Interior, Northwestern Mendocino Interior, Del Norte Interior, Northern Humboldt Interior, Northern Trinity, Southern Humboldt Interior and Northern Lake County. * WHEN...From 1 PM this afternoon to 4 AM PST Wednesday. * IMPACTS...Travel could be very difficult to impossible. The hazardous conditions could impact the morning or evening commute. * ADDITIONAL DETAILS...Highway passes impacted include Berry Summit on Highway 299, Scott Mountain Summit on Highway 3, Oregon Mountain on Highway 299, South Fork Mountain on Highway 36, and additional sections of Highways 36 and 3 in Trinity County. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state of California can be obtained by calling 1-800-GAS-ROAD. && $$
179 WWUS46 KEKA 082211 WSWEKA URGENT - WINTER WEATHER MESSAGE National Weather Service Eureka CA 211 PM PST Mon Mar 8 2021 ...SNOW SHOWERS EXPECTED THROUGH WEDNESDAY... .A cold upper level storm system will gradually move south along the west coast through mid week. An extended period of showery weather will occur with the storm system. Showers across the mountains will produce accumulating snow. Travel impacts will be possible as a result across mountain roadways and highway passes. CAZ102-105>108-110-111-114-090615- /O.CON.KEKA.WW.Y.0013.000000T0000Z-210310T1200Z/ Del Norte Interior-Northern Humboldt Interior- Southern Humboldt Interior-Northern Trinity-Southern Trinity- Northwestern Mendocino Interior-Northeastern Mendocino Interior- Northern Lake County- 211 PM PST Mon Mar 8 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 4 AM PST WEDNESDAY ABOVE 2000 FEET... * WHAT...Snow expected above 2000 feet. Total snow accumulations of 4 to 12 inches. * WHERE...Southern Trinity, Northeastern Mendocino Interior, Northwestern Mendocino Interior, Del Norte Interior, Northern Humboldt Interior, Northern Trinity, Southern Humboldt Interior and Northern Lake County. * WHEN...Through 4 AM PST Wednesday. * IMPACTS...Travel could be very difficult to impossible. The hazardous conditions could impact the morning or evening commute. * ADDITIONAL DETAILS...Highway passes impacted include Berry Summit on Highway 299, Scott Mountain Summit on Highway 3, Oregon Mountain on Highway 299, South Fork Mountain on Highway 36, and additional sections of Highways 36 and 3 in Trinity County. 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. && $$
427 WWUS46 KEKA 090912 WSWEKA URGENT - WINTER WEATHER MESSAGE National Weather Service Eureka CA 112 AM PST Tue Mar 9 2021 ...SNOW SHOWERS EXPECTED THROUGH WEDNESDAY... .A cold upper level storm system will gradually move south along the west coast through mid week. An extended period of showery weather will occur with the storm system. Showers across the mountains will produce accumulating snow. Travel impacts will be possible as a result across mountain roadways and highway passes. CAZ102-105>108-110-111-114-091715- /O.CON.KEKA.WW.Y.0013.000000T0000Z-210310T1200Z/ Del Norte Interior-Northern Humboldt Interior- Southern Humboldt Interior-Northern Trinity-Southern Trinity- Northwestern Mendocino Interior-Northeastern Mendocino Interior- Northern Lake County- 112 AM PST Tue Mar 9 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 4 AM PST WEDNESDAY ABOVE 2000 FEET... * WHAT...Snow expected above 2000 feet. Total snow accumulations of 4 to 12 inches. * WHERE...Southern Trinity, Northeastern Mendocino Interior, Northwestern Mendocino Interior, Del Norte Interior, Northern Humboldt Interior, Northern Trinity, Southern Humboldt Interior and Northern Lake County. * WHEN...Through 4 AM PST Wednesday. * IMPACTS...Travel could be very difficult to impossible. The hazardous conditions could impact the morning or evening commute. * ADDITIONAL DETAILS...Highway passes impacted include Berry Summit on Highway 299, Scott Mountain Summit on Highway 3, Oregon Mountain on Highway 299, South Fork Mountain on Highway 36, and additional sections of Highways 36 and 3 in Trinity County. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state of California can be obtained by calling 1-800-GAS-ROAD. && $$
921 WWUS46 KEKA 091110 WSWEKA URGENT - WINTER WEATHER MESSAGE National Weather Service Eureka CA 310 AM PST Tue Mar 9 2021 ...SNOW SHOWERS EXPECTED THROUGH WEDNESDAY... .A cold upper level storm system will gradually move south along the west coast through Wednesday. An extended period of showery weather will continue with the storm system. Showers across the mountains will produce accumulating snow. Travel impacts will be possible as a result across mountain roadways and highway passes. Showers will diminish Tuesday night and Wednesday. CAZ102-105>108-091915- /O.CON.KEKA.WW.Y.0013.000000T0000Z-210310T1200Z/ Del Norte Interior-Northern Humboldt Interior- Southern Humboldt Interior-Northern Trinity-Southern Trinity- 310 AM PST Tue Mar 9 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 4 AM PST WEDNESDAY ABOVE 2000 FEET... * WHAT...Snow above 2000 feet. Additional snow accumulations of 3 to 6 inches with local amounts up to a foot at the higher elevations. * WHERE...Southern Trinity, Del Norte Interior, Northern Humboldt Interior, Northern Trinity, and Southern Humboldt Interior. * WHEN...Until 4 AM PST Wednesday. * IMPACTS...Travel could be very difficult to impossible. The hazardous conditions could impact the morning or evening commute. * ADDITIONAL DETAILS...Highway passes impacted include Berry Summit on Highway 299, Scott Mountain Summit on Highway 3, Oregon Mountain on Highway 299, South Fork Mountain on Highway 36, and additional sections of Highways 36 and 3 in Trinity County. 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. && $$ CAZ110-111-114-091915- /O.CON.KEKA.WW.Y.0013.000000T0000Z-210310T1200Z/ Northwestern Mendocino Interior-Northeastern Mendocino Interior- Northern Lake County- 310 AM PST Tue Mar 9 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 4 AM PST WEDNESDAY ABOVE 3000 FEET... * WHAT...Snow above 3000 feet. Additional snow accumulations of 3 to 6 inches with local amounts up to a foot at the higher elevations. * WHERE...Northeastern Mendocino Interior, Northwestern Mendocino Interior, and Northern Lake County. * WHEN...Until 4 AM PST Wednesday. * IMPACTS...Travel could be very difficult to impossible. The hazardous conditions could impact the morning or evening commute. * ADDITIONAL DETAILS...Highway passes impacted include Berry Summit on Highway 299, Scott Mountain Summit on Highway 3, Oregon Mountain on Highway 299, South Fork Mountain on Highway 36, and additional sections of Highways 36 and 3 in Trinity County. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state of California can be obtained by calling 1-800-GAS-ROAD. && $$
820 WWUS46 KEKA 091646 WSWEKA URGENT - WINTER WEATHER MESSAGE National Weather Service Eureka CA 846 AM PST Tue Mar 9 2021 ...SNOW SHOWERS EXPECTED THROUGH WEDNESDAY... .A cold upper level storm system will gradually move south along the west coast through Wednesday. An extended period of showery weather will occur with the storm system, and showers over the mountains will produce accumulating snow. Travel impacts will be possible as a result across mountain roadways and highway passes. CAZ113-115-100100- /O.EXB.KEKA.WW.Y.0013.000000T0000Z-210310T1800Z/ Southeastern Mendocino Interior-Southern Lake County- 846 AM PST Tue Mar 9 2021 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL 10 AM PST WEDNESDAY ABOVE 1500 FEET... * WHAT...Snow above 1500 feet. Additional snow accumulations of up to 5 inches. * WHERE...Southeastern Mendocino Interior and Southern Lake County Counties. * WHEN...Until 10 AM 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. && $$ CAZ102-105>108-110-111-114-100100- /O.EXT.KEKA.WW.Y.0013.000000T0000Z-210310T1800Z/ Del Norte Interior-Northern Humboldt Interior- Southern Humboldt Interior-Northern Trinity-Southern Trinity- Northwestern Mendocino Interior-Northeastern Mendocino Interior- Northern Lake County- 846 AM PST Tue Mar 9 2021 ...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 10 AM PST WEDNESDAY ABOVE 1500 FEET... * WHAT...Snow above 1500 feet. Additional snow accumulations of 2 to 6 inches. * WHERE...Southern Trinity, Northeastern Mendocino Interior, Northwestern Mendocino Interior, Del Norte Interior, Northern Humboldt Interior, Northern Trinity, Southern Humboldt Interior and Northern Lake County Counties. * WHEN...Until 10 AM PST Wednesday. * IMPACTS...Travel could be very difficult to impossible. The hazardous conditions could impact the morning or evening commute. * ADDITIONAL DETAILS...Highway passes impacted include Berry Summit on Highway 299, Scott Mountain Summit on Highway 3, Oregon Mountain on Highway 299, South Fork Mountain on Highway 36, and additional sections of Highways 36 and 3 in Trinity County. Portions of highway 101 near Laytonville may also experience several inches of snow, particularly tonight. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state of California can be obtained by calling 1-800-GAS-ROAD. && $$
880 WWUS46 KEKA 092213 WSWEKA URGENT - WINTER WEATHER MESSAGE National Weather Service Eureka CA 213 PM PST Tue Mar 9 2021 ...SNOW SHOWERS EXPECTED THROUGH WEDNESDAY... .A cold upper level storm system will gradually move south along the west coast through Wednesday. An extended period of showery weather will occur with the storm system, and showers over the mountains will produce accumulating snow. Travel impacts will be possible as a result across mountain roadways and highway passes. CAZ104-109-100615- /O.EXA.KEKA.WW.Y.0013.000000T0000Z-210310T1800Z/ Southwestern Humboldt-Mendocino Coast- 213 PM PST Tue Mar 9 2021 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL 10 AM PST WEDNESDAY ABOVE 1500 FEET... * WHAT...Snow above 1500 feet. Additional snow accumulations of 2 to 6 inches. * WHERE...Southwestern Humboldt and Mendocino Coast Counties. * WHEN...Until 10 AM PST Wednesday. * IMPACTS...Travel could be very difficult to impossible. 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. && $$ CAZ102-105>108-110-111-113>115-100615- /O.CON.KEKA.WW.Y.0013.000000T0000Z-210310T1800Z/ Del Norte Interior-Northern Humboldt Interior- Southern Humboldt Interior-Northern Trinity-Southern Trinity- Northwestern Mendocino Interior-Northeastern Mendocino Interior- Southeastern Mendocino Interior-Northern Lake County- Southern Lake County- 213 PM PST Tue Mar 9 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST WEDNESDAY ABOVE 1500 FEET... * WHAT...Snow above 1500 feet. Additional snow accumulations of 2 to 6 inches. * WHERE...Southern Trinity, Del Norte Interior, Southeastern Mendocino Interior, Northwestern Mendocino Interior, Northeastern Mendocino Interior, Northern Humboldt Interior, Northern Trinity, Southern Humboldt Interior, Northern Lake County and Southern Lake County. * WHEN...Until 10 AM PST Wednesday. * IMPACTS...Travel could be very difficult to impossible. The hazardous conditions could impact the morning or evening commute. * ADDITIONAL DETAILS...Highway passes impacted include Berry Summit on Highway 299, Scott Mountain Summit on Highway 3, Oregon Mountain on Highway 299, South Fork Mountain on Highway 36, and additional sections of Highways 36 and 3 in Trinity County. Portions of highway 101 near Laytonville and Rattlesnake Summit may also experience several inches of snow tonight. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state of California can be obtained by calling 1-800-GAS-ROAD. && $$
138 WWUS46 KEKA 100516 WSWEKA URGENT - WINTER WEATHER MESSAGE National Weather Service Eureka CA 916 PM PST Tue Mar 9 2021 ...SNOW SHOWERS EXPECTED THROUGH WEDNESDAY... .A cold upper level storm system will gradually move south along the west coast through Wednesday. An extended period of showery weather will occur with the storm system, and showers over the mountains will produce accumulating snow. Travel impacts will be possible as a result across mountain roadways and highway passes. CAZ102-104>111-113>115-101330- /O.CON.KEKA.WW.Y.0013.000000T0000Z-210310T1800Z/ Del Norte Interior-Southwestern Humboldt- Northern Humboldt Interior-Southern Humboldt Interior- Northern Trinity-Southern Trinity-Mendocino Coast- Northwestern Mendocino Interior-Northeastern Mendocino Interior- Southeastern Mendocino Interior-Northern Lake County- Southern Lake County- 916 PM PST Tue Mar 9 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST WEDNESDAY ABOVE 1500 FEET... * WHAT...Snow above 1500 feet. Additional snow accumulations of up to 5 inches. * WHERE...Portions of northwest California above 1500 ft. * WHEN...Until 10 AM PST Wednesday. * IMPACTS...Travel could be very difficult. The hazardous conditions could impact the morning commute. * ADDITIONAL DETAILS...Highway passes impacted include Berry Summit on Highway 299, Scott Mountain Summit on Highway 3, Oregon Mountain on Highway 299, South Fork Mountain on Highway 36, and additional sections of Highways 36 and 3 in Trinity County. Portions of highway 101 near Laytonville and Rattlesnake Summit may also experience several inches of snow tonight. 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. && $$
271 WWUS46 KEKA 101319 WSWEKA URGENT - WINTER WEATHER MESSAGE National Weather Service Eureka CA 519 AM PST Wed Mar 10 2021 CAZ102-101430- /O.CAN.KEKA.WW.Y.0013.000000T0000Z-210310T1800Z/ Del Norte Interior- 519 AM PST Wed Mar 10 2021 ...WINTER WEATHER ADVISORY IS CANCELLED... Showers will continue to taper off through this morning. $$ CAZ104>111-113>115-101800- /O.CON.KEKA.WW.Y.0013.000000T0000Z-210310T1800Z/ Southwestern Humboldt-Northern Humboldt Interior- Southern Humboldt Interior-Northern Trinity-Southern Trinity- Mendocino Coast-Northwestern Mendocino Interior- Northeastern Mendocino Interior-Southeastern Mendocino Interior- Northern Lake County-Southern Lake County- 519 AM PST Wed Mar 10 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST THIS MORNING ABOVE 1500 FEET... * WHAT...Snow above 1500 feet. Additional snow accumulations of up to one inch. * WHERE...Portions of northwest California. * WHEN...Until 10 AM PST this morning. * 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. && $$
500 WWUS46 KEKA 101810 WSWEKA URGENT - WINTER WEATHER MESSAGE National Weather Service Eureka CA 1010 AM PST Wed Mar 10 2021 ...Snow Levels Rising Today, but Some Snow Showers Continuing... .Snow levels around 2000 feet early this morning are on the rise, and will be in the 2500 to 3000 foot range by this afternoon. Snow shower activity will focus across Mendocino, Lake, and southern Trinity Counties, with some additional light accumulations possible in areas of more persistent snow showers. Be prepared for locally slippery road conditions over some of the highway passes in these areas. CAZ108-110-111-113>115-110000- /O.EXP.KEKA.WW.Y.0013.000000T0000Z-210310T1800Z/ /O.NEW.KEKA.WW.Y.0014.210310T1810Z-210311T0000Z/ Southern Trinity-Northwestern Mendocino Interior- Northeastern Mendocino Interior-Southeastern Mendocino Interior- Northern Lake County-Southern Lake County- 1010 AM PST Wed Mar 10 2021 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL 4 PM PST THIS AFTERNOON ABOVE 2500 FEET... ...PREVIOUS WINTER WEATHER ADVISORY DOWN TO 1500 FEET HAS EXPIRED... * WHAT...Snow above 2500 feet. Additional snow accumulations of 1 to 3 inches possible, especially in more persistent snow shower activity above 3000 feet. * WHERE...Southern Trinity, Southeastern Mendocino Interior, Northwestern Mendocino Interior, Northeastern Mendocino Interior, Northern Lake County and Southern Lake County Counties. This includes South Fork Mountain on Highway 36, and additional sections of Highways 36 and 3 in Trinity County above 2500 feet. * WHEN...Until 4 PM PST this afternoon. * IMPACTS...Plan on locally slippery road conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and allow extra time to reach your destination. Check the latest road conditions at http://quickmap.dot.ca.gov or by calling 1-800-GAS- ROAD. A Winter Weather Advisory for snow means that periods of snow will cause travel difficulties. && $$ CAZ104>107-109-101915- /O.EXP.KEKA.WW.Y.0013.000000T0000Z-210310T1800Z/ Southwestern Humboldt-Northern Humboldt Interior- Southern Humboldt Interior-Northern Trinity-Mendocino Coast- 1010 AM PST Wed Mar 10 2021 ...WINTER WEATHER ADVISORY HAS EXPIRED... $$
The office that day
Everything else NWS Eureka, CA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 7, 2:04 PM PST | Frost Advisory | EKA | Humboldt, Mendocino | 17 hr |
| Mar 7, 2:04 PM PST | Freeze Warning | EKA | Lake, Mendocino | 17 hr |
Nearby
Winter Weather Advisories in California, 2021Every winter weather advisory 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.