Alert archive / California / Wind Advisories in 2021
Wind Advisory 5, NWS Eureka, CA
NWS Eureka, CA issued this wind advisory at Jan 24, 2021, 2:42 AM PST for Humboldt County, Mendocino County, California. It took effect at Jan 24, 2021, 1:00 PM PST. It was in force for 5 hr.
The area
The counties it named.
The facts
- Issued
- Jan 24, 2021, 2:42 AM PST (10:42 UTC)
- In effect from
- Jan 24, 2021, 1:00 PM PST
- Expired
- Jan 24, 2021, 5:53 PM PST
- In force
- 5 hr
- Issued by
- NWS Eureka, CA
Counties Humboldt County, CA, Mendocino County, CA
The radar
The Eureka (Bunker Hill) radar (KBHX), 71 km from the middle of the area, began a volume at 10:45 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, 10.7 hours before the alert went out and 266 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
- 993 m above ground
- 0-6 km bulk shear
- 40 kt
- 0-1 km storm-relative helicity
- -20 m²/s²
- 0-3 km storm-relative helicity
- 17 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
606 WWUS76 KEKA 241042 NPWEKA URGENT - WEATHER MESSAGE National Weather Service Eureka CA 242 AM PST Sun Jan 24 2021 CAZ103-104-241845- /O.NEW.KEKA.WI.Y.0005.210124T2100Z-210125T0300Z/ Northern Humboldt Coast-Southwestern Humboldt- 242 AM PST Sun Jan 24 2021 ...WIND ADVISORY IN EFFECT FROM 1 PM THIS AFTERNOON TO 7 PM PST THIS EVENING... * WHAT...Northwest winds 20 to 30 mph with gusts up to 50 mph expected. * WHERE...Northern Humboldt Coast and Southwestern Humboldt Counties. * WHEN...From 1 PM this afternoon to 7 PM PST this evening. * 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. && $$ CAZ109-241845- /O.NEW.KEKA.WI.Y.0005.210124T2100Z-210125T0600Z/ Mendocino Coast- 242 AM PST Sun Jan 24 2021 ...WIND ADVISORY IN EFFECT FROM 1 PM THIS AFTERNOON TO 10 PM PST THIS EVENING... * WHAT...Northwest winds 20 to 30 mph with gusts up to 50 mph expected. * WHERE...Mendocino Coast County. * WHEN...From 1 PM this afternoon to 10 PM PST this evening. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$
2 follow-up statements
290 WWUS76 KEKA 241852 NPWEKA URGENT - WEATHER MESSAGE National Weather Service Eureka CA 1052 AM PST Sun Jan 24 2021 CAZ103-104-242000- /O.CAN.KEKA.WI.Y.0005.210124T2100Z-210125T0300Z/ Northern Humboldt Coast-Southwestern Humboldt- 1052 AM PST Sun Jan 24 2021 ...WIND ADVISORY IS CANCELLED... Winds at lower elevations are expected to remain below advisory criteria. Stronger gusts to around 45 mph will be confined to ridges above 2500 ft. $$ CAZ109-250600- /O.CON.KEKA.WI.Y.0005.210124T2100Z-210125T0600Z/ Mendocino Coast- 1052 AM PST Sun Jan 24 2021 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 10 PM PST THIS EVENING... * WHAT...Northwest winds 20 to 30 mph with gusts up to 45 mph expected. * WHERE...Mendocino Coast. * WHEN...Until 10 PM PST this evening. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$
161 WWUS76 KEKA 250153 NPWEKA URGENT - WEATHER MESSAGE National Weather Service Eureka CA 553 PM PST Sun Jan 24 2021 CAZ109-250300- /O.CAN.KEKA.WI.Y.0005.000000T0000Z-210125T0600Z/ Mendocino Coast- 553 PM PST Sun Jan 24 2021 ...WIND ADVISORY IS CANCELLED... $$
The office that day
Everything else NWS Eureka, CA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jan 23, 8:31 PM PST | Gale Warning | EKA | 30 hr | |
| Jan 24, 3:01 PM PST | Winter Storm Watch | EKA | Del Norte, Humboldt, Lake, Mendocino, Trinity | 24 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.