Alert archive / California / Winter Storm Watches in 2021
Winter Storm Watch 7, NWS Eureka, CA
NWS Eureka, CA issued this winter storm watch at Dec 13, 2021, 2:25 PM PST for 5 counties in California. It took effect at Dec 15, 2021, 4:00 AM PST. It was in force for .
The area
The counties it named.
The facts
- Issued
- Dec 13, 2021, 2:25 PM PST (22:25 UTC)
- In effect from
- Dec 15, 2021, 4:00 AM PST
- Expired
- Dec 14, 2021, 2:21 PM PST
- In force
- 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 22:27 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, 10.4 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 617 m above ground
- 0-6 km bulk shear
- 90 kt
- 0-1 km storm-relative helicity
- 239 m²/s²
- 0-3 km storm-relative helicity
- 314 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
507 WWUS46 KEKA 132225 WSWEKA URGENT - WINTER WEATHER MESSAGE National Weather Service Eureka CA 225 PM PST Mon Dec 13 2021 ...LOW SNOW SNOW LEVELS AND LINGERING SNOW SHOWERS TONIGHT... ...Heavy low elevation snow expected on Wednesday... Snow levels will continue to drop to around 1000 feet by late tonight. Snow showers will taper off through evening and overnight. Some minor accumulations will be possible at elevations as low as 1,000 feet by Tuesday morning, which includes the highway summits through Mendocino and Lake County. Another storm system is expected to bring snow as low 1,500 to 2,000 feet on Wednesday. This is expected to bring significant snow to most highway passes across the area. CAZ102-105-106-140630- /O.NEW.KEKA.WS.A.0007.211215T1200Z-211216T0200Z/ /O.CON.KEKA.WS.W.0007.000000T0000Z-211214T0600Z/ Del Norte Interior-Northern Humboldt Interior- Southern Humboldt Interior- 225 PM PST Mon Dec 13 2021 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 PM PST THIS EVENING ABOVE 1500 FEET... ...WINTER STORM WATCH IN EFFECT FROM LATE TUESDAY NIGHT THROUGH WEDNESDAY AFTERNOON ABOVE 2000 FEET... * WHAT...For the Winter Storm Warning above 1500 feet, heavy snow. Additional snow accumulations of up to 6 inches. For the Winter Storm Watch above 2000 feet, heavy snow possible. Total snow accumulations of 6 to 12 inches possible. Winds could gust as high as 35 mph. * WHERE...Del Norte Interior, Northern Humboldt Interior and Southern Humboldt Interior Counties. * WHEN...For the Winter Storm Warning, until 10 PM PST this evening. For the Winter Storm Watch, from late Tuesday night through Wednesday afternoon. * IMPACTS...Travel could be very difficult to impossible. The hazardous conditions could impact the morning or evening commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. Monitor the latest forecasts for updates on this situation. The latest road conditions for the state of California can be obtained by calling 1-800-GAS-ROAD. && $$ CAZ108-140630- /O.NEW.KEKA.WS.A.0007.211215T1200Z-211216T1000Z/ /O.CON.KEKA.WS.W.0007.000000T0000Z-211214T0600Z/ Southern Trinity- 225 PM PST Mon Dec 13 2021 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 PM PST THIS EVENING ABOVE 3000 FEET... ...WINTER STORM WATCH IN EFFECT FROM LATE TUESDAY NIGHT THROUGH LATE WEDNESDAY NIGHT ABOVE 2000 FEET... * WHAT...For the Winter Storm Warning above 3000 feet, heavy snow. Additional snow accumulations of 2 to 6 inches. For the Winter Storm Watch above 2000 feet, heavy snow possible. Total snow accumulations of 6 to 15 inches possible. Winds could gust as high as 35 mph. * WHERE...Southern Trinity County. * WHEN...For the Winter Storm Warning, until 10 PM PST this evening. For the Winter Storm Watch, from late Tuesday night through late Wednesday night. * IMPACTS...Travel could be very difficult to impossible. The hazardous conditions could impact the morning or evening commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. Monitor the latest forecasts for updates on this situation. The latest road conditions for the state of California can be obtained by calling 1-800-GAS-ROAD. && $$ CAZ107-140630- /O.NEW.KEKA.WS.A.0007.211215T1200Z-211216T1000Z/ /O.CON.KEKA.WS.W.0007.000000T0000Z-211214T0600Z/ Northern Trinity- 225 PM PST Mon Dec 13 2021 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 PM PST THIS EVENING ABOVE 3000 FEET... ...WINTER STORM WATCH IN EFFECT FROM LATE TUESDAY NIGHT THROUGH LATE WEDNESDAY NIGHT ABOVE 1500 FEET... * WHAT...For the Winter Storm Warning above 3000 feet, heavy snow. Additional snow accumulations of 2 to 5 inches. Winds gusting as high as 35 mph. For the Winter Storm Watch above 1500 feet, heavy snow possible. Total snow accumulations of 7 to 14 inches possible. * WHERE...Northern Trinity County. * WHEN...For the Winter Storm Warning, until 10 PM PST this evening. For the Winter Storm Watch, from late Tuesday night through late Wednesday night. * IMPACTS...Travel could be very difficult to impossible. The hazardous conditions could impact the morning or evening commute. * ADDITIONAL DETAILS...Significant snow is possible in Weaverville on Wednesday. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. Monitor the latest forecasts for updates on this situation. The latest road conditions for the state of California can be obtained by calling 1-800-GAS-ROAD. && $$ CAZ110-111-114-140630- /O.NEW.KEKA.WS.A.0007.211215T1200Z-211216T0200Z/ /O.CON.KEKA.WW.Y.0020.211214T0000Z-211214T1400Z/ Northwestern Mendocino Interior-Northeastern Mendocino Interior- Northern Lake- 225 PM PST Mon Dec 13 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 AM PST TUESDAY ABOVE 1500 FEET... ...WINTER STORM WATCH IN EFFECT FROM LATE TUESDAY NIGHT THROUGH WEDNESDAY AFTERNOON ABOVE 2000 FEET... * WHAT...For the Winter Weather Advisory above 1500 feet, snow expected. Total snow accumulations of up to 4 inches. For the Winter Storm Watch above 2000 feet, heavy snow possible. Total snow accumulations of 2 to 11 inches possible. * WHERE...Northwestern Mendocino Interior, Northeastern Mendocino Interior and Northern Lake Counties. * WHEN...For the Winter Weather Advisory, until 6 AM PST Tuesday. For the Winter Storm Watch, from late Tuesday night through Wednesday afternoon. * IMPACTS...Travel could be very difficult to impossible. The hazardous conditions could impact the morning or evening commute. * ADDITIONAL DETAILS...Snow may impact the higher summits on Hwy 101 in Mendocino county on Wednesday. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. Monitor the latest forecasts for updates on this situation. The latest road conditions for the state of California can be obtained by calling 1-800-GAS-ROAD. && $$ CAZ113-115-140630- /O.CON.KEKA.WW.Y.0020.211214T0000Z-211214T1400Z/ Southeastern Mendocino Interior-Southern Lake- 225 PM PST Mon Dec 13 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 AM PST TUESDAY ABOVE 1500 FEET... * WHAT...Snow expected above 1500 feet. Total snow accumulations of up to two inches. * WHERE...Southeastern Mendocino Interior and Southern Lake Counties. * WHEN...Until 6 AM PST Tuesday. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the evening commute. * ADDITIONAL DETAILS...Snow levels will gradually fall tonight to around 1000 feet. 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. && $$
6 follow-up statements
938 WWUS46 KEKA 140436 WSWEKA URGENT - WINTER WEATHER MESSAGE National Weather Service Eureka CA 836 PM PST Mon Dec 13 2021 ...WINTER WEATHER WILL CONTINUE THROUGH WEDNESDAY... Snow levels will continue to drop to around 1000 feet by late tonight. However, snow showers will taper off during the evening and overnight hours. Some minor accumulations will be possible at elevations as low as 1,000 feet by Tuesday morning, which includes the highway summits through Mendocino and Lake County. Otherwise, another storm system will produce moderate to heavy snow accumulations for elevations as low 1500 to 2000 feet on Wednesday. CAZ102-105-106-141245- /O.CON.KEKA.WS.W.0007.000000T0000Z-211214T0600Z/ /O.CON.KEKA.WS.A.0007.211215T1200Z-211216T0200Z/ Del Norte Interior-Northern Humboldt Interior- Southern Humboldt Interior- 836 PM PST Mon Dec 13 2021 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 PM PST THIS EVENING ABOVE 1500 FEET... ...WINTER STORM WATCH REMAINS IN EFFECT FROM LATE TUESDAY NIGHT THROUGH WEDNESDAY AFTERNOON ABOVE 2000 FEET... * WHAT...For the Winter Storm Warning above 1500 feet, additional snow accumulations of up to one inch. For the Winter Storm Watch above 2000 feet, heavy snow possible. Total snow accumulations of 5 to 12 inches possible. Winds could gust as high as 50 mph. * WHERE...Del Norte Interior, Northern Humboldt Interior and Southern Humboldt Interior Counties. * WHEN...For the Winter Storm Warning, until 10 PM PST this evening. For the Winter Storm Watch, from late Tuesday night through Wednesday afternoon. * 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. Monitor the latest forecasts for updates on this situation. The latest road conditions for the state of California can be obtained by calling 1-800-GAS-ROAD. && $$ CAZ108-141245- /O.CON.KEKA.WS.W.0007.000000T0000Z-211214T0600Z/ /O.CON.KEKA.WS.A.0007.211215T1200Z-211216T1000Z/ Southern Trinity- 836 PM PST Mon Dec 13 2021 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 PM PST THIS EVENING ABOVE 3000 FEET... ...WINTER STORM WATCH REMAINS IN EFFECT FROM LATE TUESDAY NIGHT THROUGH LATE WEDNESDAY NIGHT ABOVE 2000 FEET... * WHAT...For the Winter Storm Warning above 3000 feet, additional snow accumulations of up to one inch. For the Winter Storm Watch above 2000 feet, heavy snow possible. Total snow accumulations of 6 to 15 inches possible. Winds could gust as high as 40 mph. * WHERE...Southern Trinity County. * WHEN...For the Winter Storm Warning, until 10 PM PST this evening. For the Winter Storm Watch, from late Tuesday night through late Wednesday night. * IMPACTS...Travel could be very difficult to impossible. The hazardous conditions could impact the morning or evening commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. Monitor the latest forecasts for updates on this situation. The latest road conditions for the state of California can be obtained by calling 1-800-GAS-ROAD. && $$ CAZ107-141245- /O.CON.KEKA.WS.W.0007.000000T0000Z-211214T0600Z/ /O.CON.KEKA.WS.A.0007.211215T1200Z-211216T1000Z/ Northern Trinity- 836 PM PST Mon Dec 13 2021 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 PM PST THIS EVENING ABOVE 3000 FEET... ...WINTER STORM WATCH REMAINS IN EFFECT FROM LATE TUESDAY NIGHT THROUGH LATE WEDNESDAY NIGHT ABOVE 1500 FEET... * WHAT...For the Winter Storm Warning above 3000 feet, additional snow accumulations of up to one inch. For the Winter Storm Watch above 1500 feet, heavy snow possible. Total snow accumulations of 7 to 21 inches possible. Winds could gust as high as 45 mph. * WHERE...Northern Trinity County. * WHEN...For the Winter Storm Warning, until 10 PM PST this evening. For the Winter Storm Watch, from late Tuesday night through late Wednesday night. * IMPACTS...Travel could be very difficult to impossible. The hazardous conditions could impact the morning or evening commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. Monitor the latest forecasts for updates on this situation. The latest road conditions for the state of California can be obtained by calling 1-800-GAS-ROAD. && $$ CAZ110-111-114-141245- /O.CON.KEKA.WW.Y.0020.000000T0000Z-211214T1400Z/ /O.CON.KEKA.WS.A.0007.211215T1200Z-211216T0200Z/ Northwestern Mendocino Interior-Northeastern Mendocino Interior- Northern Lake- 836 PM PST Mon Dec 13 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 AM PST TUESDAY ABOVE 1500 FEET... ...WINTER STORM WATCH REMAINS IN EFFECT FROM LATE TUESDAY NIGHT THROUGH WEDNESDAY AFTERNOON ABOVE 2000 FEET... * WHAT...For the Winter Weather Advisory above 1500 feet, additional snow accumulations of up to 1 inch. For the Winter Storm Watch above 2000 feet, heavy snow possible. Total snow accumulations of 5 to 10 inches possible. Winds could gust as high as 40 mph. * WHERE...Northeastern Mendocino Interior, Northwestern Mendocino Interior and Northern Lake Counties. * WHEN...For the Winter Weather Advisory, until 6 AM PST Tuesday. For the Winter Storm Watch, from late Tuesday night through Wednesday afternoon. * 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. Monitor the latest forecasts for updates on this situation. The latest road conditions for the state of California can be obtained by calling 1-800-GAS-ROAD. && $$ CAZ113-115-141245- /O.CON.KEKA.WW.Y.0020.000000T0000Z-211214T1400Z/ Southeastern Mendocino Interior-Southern Lake- 836 PM PST Mon Dec 13 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 AM PST TUESDAY ABOVE 1500 FEET... * WHAT...Snow above 1500 feet. Additional snow accumulations of up to one inch. * WHERE...Southeastern Mendocino Interior and Southern Lake Counties. * WHEN...Until 6 AM PST Tuesday. * IMPACTS...Plan on slippery road conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state of California can be obtained by calling 1-800-GAS-ROAD. && $$
186 WWUS46 KEKA 140538 WSWEKA URGENT - WINTER WEATHER MESSAGE National Weather Service Eureka CA 938 PM PST Mon Dec 13 2021 ...WINTER WEATHER WILL CONTINUE THROUGH WEDNESDAY... Snow levels will continue to drop to around 1000 feet by late tonight. However, snow showers will taper off during the evening and overnight hours. Some minor accumulations will be possible at elevations as low as 1,000 feet by Tuesday morning, which includes the highway summits through Mendocino and Lake County. Otherwise, another storm system will produce moderate to heavy snow accumulations for elevations as low 1500 to 2000 feet on Wednesday. CAZ102-105-106-141345- /O.EXP.KEKA.WS.W.0007.000000T0000Z-211214T0600Z/ /O.CON.KEKA.WS.A.0007.211215T1200Z-211216T0200Z/ Del Norte Interior-Northern Humboldt Interior- Southern Humboldt Interior- 938 PM PST Mon Dec 13 2021 ...WINTER STORM WATCH REMAINS IN EFFECT FROM LATE TUESDAY NIGHT THROUGH WEDNESDAY AFTERNOON ABOVE 2000 FEET... * WHAT...Heavy snow possible above 2000 feet. Total snow accumulations of 5 to 12 inches possible. Winds could gust as high as 50 mph. * WHERE...Del Norte Interior, Northern Humboldt Interior and Southern Humboldt Interior Counties. * WHEN...From late Tuesday night through Wednesday afternoon. * 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... Monitor the latest forecasts for updates on this situation. && $$ CAZ108-141345- /O.EXP.KEKA.WS.W.0007.000000T0000Z-211214T0600Z/ /O.CON.KEKA.WS.A.0007.211215T1200Z-211216T1000Z/ Southern Trinity- 938 PM PST Mon Dec 13 2021 ...WINTER STORM WATCH REMAINS IN EFFECT FROM LATE TUESDAY NIGHT THROUGH LATE WEDNESDAY NIGHT ABOVE 2000 FEET... * WHAT...Heavy snow possible above 2000 feet. Total snow accumulations of 6 to 15 inches possible. Winds could gust as high as 45 mph. * WHERE...Southern Trinity County. * WHEN...From late Tuesday night through late Wednesday night. * IMPACTS...Travel could be very difficult to impossible. The hazardous conditions could impact the morning or evening commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... Monitor the latest forecasts for updates on this situation. && $$ CAZ107-141345- /O.EXP.KEKA.WS.W.0007.000000T0000Z-211214T0600Z/ /O.CON.KEKA.WS.A.0007.211215T1200Z-211216T1000Z/ Northern Trinity- 938 PM PST Mon Dec 13 2021 ...WINTER STORM WATCH REMAINS IN EFFECT FROM LATE TUESDAY NIGHT THROUGH LATE WEDNESDAY NIGHT ABOVE 1500 FEET... * WHAT...Heavy snow possible above 1500 feet. Total snow accumulations of 7 to 21 inches possible. Winds could gust as high as 45 mph. * WHERE...Northern Trinity County. * WHEN...From late Tuesday night through late Wednesday night. * 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... Monitor the latest forecasts for updates on this situation. && $$ CAZ110-111-114-141345- /O.EXT.KEKA.WW.Y.0020.000000T0000Z-211214T1200Z/ /O.CON.KEKA.WS.A.0007.211215T1200Z-211216T0200Z/ Northwestern Mendocino Interior-Northeastern Mendocino Interior- Northern Lake- 938 PM PST Mon Dec 13 2021 ...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 4 AM PST TUESDAY ABOVE 1500 FEET... ...WINTER STORM WATCH REMAINS IN EFFECT FROM LATE TUESDAY NIGHT THROUGH WEDNESDAY AFTERNOON ABOVE 2000 FEET... * WHAT...For the Winter Weather Advisory above 1500 feet, snow. Additional snow accumulations of up to two inches. For the Winter Storm Watch above 2000 feet, heavy snow possible. Total snow accumulations of 5 to 10 inches possible. Winds could gust as high as 45 mph. * WHERE...Northeastern Mendocino Interior, Northwestern Mendocino Interior and Northern Lake Counties. * WHEN...For the Winter Weather Advisory, until 4 AM PST Tuesday. For the Winter Storm Watch, from late Tuesday night through Wednesday afternoon. * IMPACTS...Travel could be very difficult to impossible. The hazardous conditions could impact the morning or evening commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. Monitor the latest forecasts for updates on this situation. The latest road conditions for the state of California can be obtained by calling 1-800-GAS-ROAD. && $$ CAZ113-115-141200- /O.EXT.KEKA.WW.Y.0020.000000T0000Z-211214T1200Z/ Southeastern Mendocino Interior-Southern Lake- 938 PM PST Mon Dec 13 2021 ...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 4 AM PST TUESDAY ABOVE 1500 FEET... * WHAT...Snow above 1500 feet. Additional snow accumulations of up to one inch. * WHERE...Southeastern Mendocino Interior and Southern Lake Counties. * WHEN...Until 4 AM PST Tuesday. * IMPACTS...Plan on slippery road conditions. 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. && $$
015 WWUS46 KEKA 140640 WSWEKA URGENT - WINTER WEATHER MESSAGE National Weather Service Eureka CA 1040 PM PST Mon Dec 13 2021 ...WINTER WEATHER WILL CONTINUE THROUGH WEDNESDAY... Heavy snow has come to an end across much of northwest California. However, another storm system will produce moderate to heavy snow accumulations for elevations as low 1500 to 2000 feet on Wednesday. CAZ110-111-141445- /O.CAN.KEKA.WW.Y.0020.000000T0000Z-211214T1200Z/ /O.CON.KEKA.WS.A.0007.211215T1200Z-211216T0200Z/ Northwestern Mendocino Interior-Northeastern Mendocino Interior- 1040 PM PST Mon Dec 13 2021 ...WINTER STORM WATCH REMAINS IN EFFECT FROM LATE TUESDAY NIGHT THROUGH WEDNESDAY AFTERNOON ABOVE 2000 FEET... ...WINTER WEATHER ADVISORY IS CANCELLED... * WHAT...Heavy snow possible above 2000 feet. Total snow accumulations of 5 to 11 inches possible. Winds could gust as high as 45 mph. * WHERE...Northeastern Mendocino Interior and Northwestern Mendocino Interior Counties. * WHEN...From late Tuesday night through Wednesday afternoon. * IMPACTS...Travel could be very difficult to impossible. The hazardous conditions could impact the morning or evening commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... Monitor the latest forecasts for updates on this situation. && $$ CAZ113-140745- /O.CAN.KEKA.WW.Y.0020.000000T0000Z-211214T1200Z/ Southeastern Mendocino Interior- 1040 PM PST Mon Dec 13 2021 ...WINTER WEATHER ADVISORY IS CANCELLED... $$ CAZ114-141445- /O.CON.KEKA.WW.Y.0020.000000T0000Z-211214T1200Z/ /O.CON.KEKA.WS.A.0007.211215T1200Z-211216T0200Z/ Northern Lake- 1040 PM PST Mon Dec 13 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 4 AM PST TUESDAY ABOVE 1500 FEET... ...WINTER STORM WATCH REMAINS IN EFFECT FROM LATE TUESDAY NIGHT THROUGH WEDNESDAY AFTERNOON ABOVE 2000 FEET... * WHAT...For the Winter Weather Advisory above 1500 feet, snow. Additional snow accumulations of up to two inches. For the Winter Storm Watch above 2000 feet, heavy snow possible. Total snow accumulations of 5 to 8 inches possible. Winds could gust as high as 35 mph. * WHERE...Northern Lake County. * WHEN...For the Winter Weather Advisory, until 4 AM PST Tuesday. For the Winter Storm Watch, from late Tuesday night through Wednesday afternoon. * IMPACTS...Travel could be very difficult. The hazardous conditions could impact the morning or evening commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. Monitor the latest forecasts for updates on this situation. The latest road conditions for the state of California can be obtained by calling 1-800-GAS-ROAD. && $$ CAZ115-141200- /O.CON.KEKA.WW.Y.0020.000000T0000Z-211214T1200Z/ Southern Lake- 1040 PM PST Mon Dec 13 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 4 AM PST TUESDAY ABOVE 1500 FEET... * WHAT...Snow above 1500 feet. Additional snow accumulations of up to one inch. * WHERE...Southern Lake County. * WHEN...Until 4 AM PST Tuesday. * IMPACTS...Plan on slippery road conditions. 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. && $$ CAZ107-141445- /O.CON.KEKA.WS.A.0007.211215T1200Z-211216T1000Z/ Northern Trinity- 1040 PM PST Mon Dec 13 2021 ...WINTER STORM WATCH REMAINS IN EFFECT FROM LATE TUESDAY NIGHT THROUGH LATE WEDNESDAY NIGHT ABOVE 1500 FEET... * WHAT...Heavy snow possible above 1500 feet. Total snow accumulations of 7 to 21 inches possible. Winds could gust as high as 45 mph. * WHERE...Northern Trinity County. * WHEN...From late Tuesday night through late Wednesday night. * IMPACTS...Travel could be very difficult to impossible. The hazardous conditions could impact the morning or evening commute. Gusty winds could bring down tree branches. PRECAUTIONARY/PREPAREDNESS ACTIONS... Monitor the latest forecasts for updates on this situation. && $$ CAZ108-141445- /O.CON.KEKA.WS.A.0007.211215T1200Z-211216T1000Z/ Southern Trinity- 1040 PM PST Mon Dec 13 2021 ...WINTER STORM WATCH REMAINS IN EFFECT FROM LATE TUESDAY NIGHT THROUGH LATE WEDNESDAY NIGHT ABOVE 2000 FEET... * WHAT...Heavy snow possible above 2000 feet. Total snow accumulations of 6 to 15 inches possible. Winds could gust as high as 45 mph. * WHERE...Southern Trinity County. * WHEN...From late Tuesday night through late Wednesday night. * IMPACTS...Travel could be very difficult to impossible. The hazardous conditions could impact the morning or evening commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... Monitor the latest forecasts for updates on this situation. && $$ CAZ102-105-106-141445- /O.CON.KEKA.WS.A.0007.211215T1200Z-211216T0200Z/ Del Norte Interior-Northern Humboldt Interior- Southern Humboldt Interior- 1040 PM PST Mon Dec 13 2021 ...WINTER STORM WATCH REMAINS IN EFFECT FROM LATE TUESDAY NIGHT THROUGH WEDNESDAY AFTERNOON ABOVE 2000 FEET... * WHAT...Heavy snow possible above 2000 feet. Total snow accumulations of 5 to 12 inches possible. Winds could gust as high as 50 mph. * WHERE...Del Norte Interior, Northern Humboldt Interior and Southern Humboldt Interior Counties. * WHEN...From late Tuesday night through Wednesday afternoon. * IMPACTS...Travel could be very difficult to impossible. The hazardous conditions could impact the morning or evening commute. Gusty winds could bring down tree branches. PRECAUTIONARY/PREPAREDNESS ACTIONS... Monitor the latest forecasts for updates on this situation. && $$
903 WWUS46 KEKA 141146 WSWEKA URGENT - WINTER WEATHER MESSAGE National Weather Service Eureka CA 346 AM 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 1500 to 2000 feet on Wednesday. CAZ114-142000- /O.EXP.KEKA.WW.Y.0020.000000T0000Z-211214T1200Z/ /O.CON.KEKA.WS.A.0007.211215T1200Z-211216T0200Z/ Northern Lake- 346 AM PST Tue Dec 14 2021 ...WINTER STORM WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH WEDNESDAY AFTERNOON ABOVE 2000 FEET... ...WINTER WEATHER ADVISORY WILL EXPIRE AT 4 AM PST EARLY THIS MORNING ABOVE 1500 FEET... * WHAT...Heavy snow possible above 2000 feet. Total snow accumulations of up to 9 inches possible. Winds could gust as high as 40 mph. * WHERE...Northern Lake County. * WHEN...From late tonight through Wednesday afternoon. * IMPACTS...Travel could be very difficult. The hazardous conditions could impact the morning or evening commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... Monitor the latest forecasts for updates on this situation. && $$ CAZ115-141300- /O.EXP.KEKA.WW.Y.0020.000000T0000Z-211214T1200Z/ Southern Lake- 346 AM PST Tue Dec 14 2021 ...WINTER WEATHER ADVISORY WILL EXPIRE AT 4 AM PST EARLY THIS MORNING ABOVE 1500 FEET... Snow showers have mostly moved out of the area. $$ CAZ107-142000- /O.CON.KEKA.WS.A.0007.211215T1200Z-211216T1000Z/ Northern Trinity- 346 AM PST Tue Dec 14 2021 ...WINTER STORM WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH LATE WEDNESDAY NIGHT ABOVE 1500 FEET... * WHAT...Heavy snow possible above 1500 feet. Total snow accumulations of 2 to 22 inches possible. Winds could gust as high as 45 mph. * WHERE...Northern Trinity County. * WHEN...From late tonight through late Wednesday night. * IMPACTS...Travel could be very difficult to impossible. The hazardous conditions could impact the morning or evening commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... Monitor the latest forecasts for updates on this situation. && $$ CAZ108-142000- /O.CON.KEKA.WS.A.0007.211215T1200Z-211216T1000Z/ Southern Trinity- 346 AM PST Tue Dec 14 2021 ...WINTER STORM WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH LATE WEDNESDAY NIGHT ABOVE 2000 FEET... * WHAT...Heavy snow possible above 2000 feet. Total snow accumulations of 1 to 16 inches possible. Winds could gust as high as 45 mph. * WHERE...Southern Trinity County. * WHEN...From late tonight through late Wednesday night. * IMPACTS...Travel could be very difficult to impossible. The hazardous conditions could impact the morning or evening commute. Gusty winds could bring down tree branches. PRECAUTIONARY/PREPAREDNESS ACTIONS... Monitor the latest forecasts for updates on this situation. && $$ CAZ102-105-106-110-111-142000- /O.CON.KEKA.WS.A.0007.211215T1200Z-211216T0200Z/ Del Norte Interior-Northern Humboldt Interior- Southern Humboldt Interior-Northwestern Mendocino Interior- Northeastern Mendocino Interior- 346 AM PST Tue Dec 14 2021 ...WINTER STORM WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH WEDNESDAY AFTERNOON ABOVE 2000 FEET... * WHAT...Heavy snow possible above 2000 feet. Total snow accumulations of up to 13 inches possible. Winds could gust 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 late tonight through Wednesday afternoon. * 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... Monitor the latest forecasts for updates on this situation. && $$
755 WWUS46 KEKA 141430 WSWEKA URGENT - WINTER WEATHER MESSAGE National Weather Service Eureka CA 630 AM PST Tue Dec 14 2021 ...WINTER WEATHER WILL CONTINUE THROUGH WEDNESDAY... Heavy snow has come to an end across much of northwest California. However, another storm system will produce moderate to heavy snow accumulations for elevations as low 1000 to 2000 feet on Wednesday. CAZ107-142230- /O.CON.KEKA.WS.A.0007.211215T1200Z-211216T1000Z/ Northern Trinity- 630 AM PST Tue Dec 14 2021 ...WINTER STORM WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH LATE WEDNESDAY NIGHT ABOVE 1500 FEET... * WHAT...Heavy snow possible above 1500 feet. Total snow accumulations of 2 to 8 inches in low elevation valleys and 10 to 22 inches possible at high elevations. Winds could gust as high as 45 mph. * WHERE...Northern Trinity County. * WHEN...From late tonight through late Wednesday night. * IMPACTS...Travel could be very difficult to impossible. The hazardous conditions could impact the morning or evening commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... Monitor the latest forecasts for updates on this situation. && $$ CAZ108-142230- /O.CON.KEKA.WS.A.0007.211215T1200Z-211216T1000Z/ Southern Trinity- 630 AM PST Tue Dec 14 2021 ...WINTER STORM WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH LATE WEDNESDAY NIGHT ABOVE 2000 FEET... * WHAT...Heavy snow possible above 2000 feet. Total snow accumulations of 1 to 8 inches along lower elevation valleys and 8 to 18 inches possible at high elevations. Winds could gust as high as 45 mph. * WHERE...Southern Trinity County. * WHEN...From late tonight through late Wednesday night. * 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... Monitor the latest forecasts for updates on this situation. && $$ CAZ102-105-106-110-111-114-142230- /O.CON.KEKA.WS.A.0007.211215T1200Z-211216T0200Z/ Del Norte Interior-Northern Humboldt Interior- Southern Humboldt Interior-Northwestern Mendocino Interior- Northeastern Mendocino Interior-Northern Lake- 630 AM PST Tue Dec 14 2021 ...WINTER STORM WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH WEDNESDAY AFTERNOON ABOVE 2000 FEET... * WHAT...Heavy snow possible above 2000 feet. Total snow accumulations of 2 to 6 inches around high elevation highway passes and up to 13 inches possible at higher elevations. Winds could gust as high as 55 mph. * WHERE...Portions of northwest California. * WHEN...From late tonight through Wednesday afternoon. * IMPACTS...Travel could be very difficult to impossible. The hazardous conditions could impact the morning or evening commute. Gusty winds could bring down tree branches. PRECAUTIONARY/PREPAREDNESS ACTIONS... Monitor the latest forecasts for updates on this situation. && $$
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. && $$
The office that day
Everything else NWS Eureka, CA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 12, 5:27 PM PST | Winter Weather Advisory | EKA | Lake, Mendocino | 35 hr |
| Dec 13, 1:44 AM PST | Hazardous Seas Warning | EKA | 16 hr | |
| Dec 13, 5:43 AM PST | Beach Hazards Statement | EKA | Del Norte, Humboldt, Mendocino | 28 hr |
| Dec 13, 8:54 AM PST | Special Weather Statement | EKA | Humboldt | 36 min |
| Dec 13, 2:21 PM PST | Gale Warning | EKA | 49 hr |
Nearby
Winter Storm Watches in California, 2021Every winter storm watch 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.