Alert archive / California / Wind Advisories in 2021
Wind Advisory 7, NWS Eureka, CA
NWS Eureka, CA issued this wind advisory at Jan 29, 2021, 6:09 PM PST for 5 counties in California. It took effect at Jan 30, 2021, 10:00 PM PST. It was in force for 42 hr.
The area
The counties it named.
The facts
- Issued
- Jan 29, 2021, 6:09 PM PST (02:09 UTC)
- In effect from
- Jan 30, 2021, 10:00 PM PST
- Expired
- Feb 1, 2021, 4:00 PM PST
- In force
- 42 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 02:11 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 00:00Z, 2.2 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
- 953 m above ground
- 0-6 km bulk shear
- 38 kt
- 0-1 km storm-relative helicity
- 95 m²/s²
- 0-3 km storm-relative helicity
- 154 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
694 WWUS76 KEKA 300209 NPWEKA URGENT - WEATHER MESSAGE National Weather Service Eureka CA 609 PM PST Fri Jan 29 2021 CAZ102-104>106-108-110-111-114-301015- /O.NEW.KEKA.WI.Y.0007.210131T0600Z-210201T0000Z/ Del Norte Interior-Southwestern Humboldt- Northern Humboldt Interior-Southern Humboldt Interior- Southern Trinity-Northwestern Mendocino Interior- Northeastern Mendocino Interior-Northern Lake County- 609 PM PST Fri Jan 29 2021 ...WIND ADVISORY IN EFFECT FROM 10 PM SATURDAY TO 4 PM PST SUNDAY ABOVE 1500 FEET... * WHAT...Southeast winds 25 to 35 mph with gusts up to 45 mph expected above 1500 feet. * WHERE...Del Norte Interior, Southwestern Humboldt, Northern Humboldt Interior, Southern Humboldt Interior, Southern Trinity, Northwestern Mendocino Interior, Northeastern Mendocino Interior and Northern Lake County Counties. * WHEN...From 10 PM Saturday to 4 PM PST Sunday. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$
9 follow-up statements
573 WWUS76 KEKA 300545 NPWEKA URGENT - WEATHER MESSAGE National Weather Service Eureka CA 945 PM PST Fri Jan 29 2021 CAZ102-104>106-108-110-111-114-301345- /O.CON.KEKA.WI.Y.0007.210131T0600Z-210201T0000Z/ Del Norte Interior-Southwestern Humboldt- Northern Humboldt Interior-Southern Humboldt Interior- Southern Trinity-Northwestern Mendocino Interior- Northeastern Mendocino Interior-Northern Lake County- 945 PM PST Fri Jan 29 2021 ...WIND ADVISORY REMAINS IN EFFECT FROM 10 PM SATURDAY TO 4 PM PST SUNDAY ABOVE 1500 FEET... * WHAT...Southeast winds 25 to 35 mph with gusts up to 45 mph expected above 1500 feet. * WHERE...Southern Trinity, Northeastern Mendocino Interior, Northwestern Mendocino Interior, Del Norte Interior, Northern Humboldt Interior, Southwestern Humboldt, Northern Lake County and Southern Humboldt Interior Counties. * WHEN...From 10 PM Saturday to 4 PM PST Sunday. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$
550 WWUS76 KEKA 300958 NPWEKA URGENT - WEATHER MESSAGE National Weather Service Eureka CA 158 AM PST Sat Jan 30 2021 CAZ108-114-301100- /O.CAN.KEKA.WI.Y.0007.210131T0600Z-210201T0000Z/ Southern Trinity-Northern Lake County- 158 AM PST Sat Jan 30 2021 ...WIND ADVISORY IS CANCELLED... $$ CAZ102-104>106-110-111-302315- /O.CON.KEKA.WI.Y.0007.210131T0600Z-210201T0000Z/ Del Norte Interior-Southwestern Humboldt- Northern Humboldt Interior-Southern Humboldt Interior- Northwestern Mendocino Interior-Northeastern Mendocino Interior- 158 AM PST Sat Jan 30 2021 ...WIND ADVISORY REMAINS IN EFFECT FROM 10 PM THIS EVENING TO 4 PM PST SUNDAY ABOVE 1500 FEET... * WHAT...Southeast winds 20 to 35 mph with gusts up to 55 mph expected above 1500 feet. * WHERE...Northeastern Mendocino Interior, Northwestern Mendocino Interior, Del Norte Interior, Northern Humboldt Interior, Southwestern Humboldt and Southern Humboldt Interior Counties. * WHEN...From 10 PM this evening to 4 PM PST Sunday. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$
230 WWUS76 KEKA 302330 NPWEKA URGENT - WEATHER MESSAGE National Weather Service Eureka CA 330 PM PST Sat Jan 30 2021 CAZ102-104>106-110-111-310730- /O.CON.KEKA.WI.Y.0007.210131T0600Z-210201T0000Z/ Del Norte Interior-Southwestern Humboldt- Northern Humboldt Interior-Southern Humboldt Interior- Northwestern Mendocino Interior-Northeastern Mendocino Interior- 330 PM PST Sat Jan 30 2021 ...WIND ADVISORY REMAINS IN EFFECT FROM 10 PM THIS EVENING TO 4 PM PST SUNDAY ABOVE 1500 FEET... * WHAT...Southeast winds 20 to 35 mph with gusts up to 55 mph expected above 1500 feet. * WHERE...Northeastern Mendocino Interior, Northwestern Mendocino Interior, Del Norte Interior, Northern Humboldt Interior, Southwestern Humboldt and Southern Humboldt Interior Counties. * WHEN...From 10 PM this evening to 4 PM PST Sunday. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$
227 WWUS76 KEKA 310502 NPWEKA URGENT - WEATHER MESSAGE National Weather Service Eureka CA 902 PM PST Sat Jan 30 2021 CAZ102-104>106-110-111-311315- /O.CON.KEKA.WI.Y.0007.210131T0600Z-210201T0000Z/ Del Norte Interior-Southwestern Humboldt- Northern Humboldt Interior-Southern Humboldt Interior- Northwestern Mendocino Interior-Northeastern Mendocino Interior- 902 PM PST Sat Jan 30 2021 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 4 PM PST SUNDAY ABOVE 1500 FEET... * WHAT...Southeast winds 20 to 30 mph with gusts from 45 to 55 mph expected above 1500 feet. * WHERE...Northeastern Mendocino Interior, Northwestern Mendocino Interior, Del Norte Interior, Northern Humboldt Interior, Southwestern Humboldt and Southern Humboldt Interior Counties. * WHEN...Until 4 PM PST Sunday. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$
753 WWUS76 KEKA 311124 NPWEKA URGENT - WEATHER MESSAGE National Weather Service Eureka CA 324 AM PST Sun Jan 31 2021 CAZ102-104>106-110-111-312300- /O.EXT.KEKA.WI.Y.0007.000000T0000Z-210202T0000Z/ Del Norte Interior-Southwestern Humboldt- Northern Humboldt Interior-Southern Humboldt Interior- Northwestern Mendocino Interior-Northeastern Mendocino Interior- 324 AM PST Sun Jan 31 2021 ...WIND ADVISORY NOW IN EFFECT UNTIL 4 PM PST MONDAY ABOVE 1500 FEET... * WHAT...Southeast winds 20 to 30 mph with gusts up to 55 mph above 1500 feet. * WHERE...Northeastern Mendocino Interior, Northwestern Mendocino Interior, Del Norte Interior, Northern Humboldt Interior, Southwestern Humboldt and Southern Humboldt Interior Counties. * WHEN...Until 4 PM PST Monday. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$
262 WWUS76 KEKA 311955 NPWEKA URGENT - WEATHER MESSAGE National Weather Service Eureka CA 1155 AM PST Sun Jan 31 2021 CAZ110-111-312100- /O.CAN.KEKA.WI.Y.0007.000000T0000Z-210202T0000Z/ Northwestern Mendocino Interior-Northeastern Mendocino Interior- 1155 AM PST Sun Jan 31 2021 ...WIND ADVISORY IS CANCELLED... The axis of stronger winds will be farther north and west than earlier forecast. Still expect some sub-advisory criteria southeast to south wind gusts reaching 30 to 40 mph over exposed mountainous terrain above 1500 feet through Monday. $$ CAZ102-104>106-010400- /O.CON.KEKA.WI.Y.0007.000000T0000Z-210202T0000Z/ Del Norte Interior-Southwestern Humboldt- Northern Humboldt Interior-Southern Humboldt Interior- 1155 AM PST Sun Jan 31 2021 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 4 PM PST MONDAY ABOVE 1500 FEET... * WHAT...South winds 15 to 25 mph with gusts up to 55 mph over exposed mountainous terrain above 1500 feet. * WHERE...Del Norte Interior, Northern Humboldt Interior, Southwestern Humboldt and Southern Humboldt Interior Counties. * WHEN...Until 4 PM PST Monday. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$
401 WWUS76 KEKA 010437 NPWEKA URGENT - WEATHER MESSAGE National Weather Service Eureka CA 837 PM PST Sun Jan 31 2021 CAZ102-104>106-011245- /O.CON.KEKA.WI.Y.0007.000000T0000Z-210202T0000Z/ Del Norte Interior-Southwestern Humboldt- Northern Humboldt Interior-Southern Humboldt Interior- 837 PM PST Sun Jan 31 2021 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 4 PM PST MONDAY ABOVE 1500 FEET... * WHAT...South winds 15 to 25 mph with gusts up to 55 mph above 1500 feet. * WHERE...Del Norte Interior, Northern Humboldt Interior, Southwestern Humboldt and Southern Humboldt Interior Counties. * WHEN...Until 4 PM PST Monday. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$
412 WWUS76 KEKA 011145 NPWEKA URGENT - WEATHER MESSAGE National Weather Service Eureka CA 345 AM PST Mon Feb 1 2021 CAZ102-104>106-012000- /O.CON.KEKA.WI.Y.0007.000000T0000Z-210202T0000Z/ Del Norte Interior-Southwestern Humboldt- Northern Humboldt Interior-Southern Humboldt Interior- 345 AM PST Mon Feb 1 2021 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 4 PM PST THIS AFTERNOON ABOVE 1500 FEET... * WHAT...South winds 20 to 30 mph with gusts up to 50 mph above 1500 feet. * WHERE...Del Norte Interior, Northern Humboldt Interior, Southwestern Humboldt and Southern Humboldt Interior Counties. * WHEN...Until 4 PM PST this afternoon. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$
387 WWUS76 KEKA 020027 NPWEKA URGENT - WEATHER MESSAGE National Weather Service Eureka CA 427 PM PST Mon Feb 1 2021 CAZ102-104>106-020130- /O.EXP.KEKA.WI.Y.0007.000000T0000Z-210202T0000Z/ Del Norte Interior-Southwestern Humboldt- Northern Humboldt Interior-Southern Humboldt Interior- 427 PM PST Mon Feb 1 2021 ...WIND ADVISORY HAS EXPIRED... $$
The office that day
Everything else NWS Eureka, CA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jan 29, 4:52 PM PST | Flood Watch | EKA | Del Norte, Humboldt, Mendocino, Trinity | 36 hr |
| Jan 30, 5:32 AM PST | Winter Storm Warning | EKA | 66 hr |
Nearby
Wind Advisories in California, 2021Every wind 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.