Alert archive / California / Wind Advisories in 2019
Wind Advisory 20, NWS Eureka, CA
NWS Eureka, CA issued this wind advisory at Dec 7, 2019, 10:54 AM PST for Del Norte County, Humboldt County, California. It took effect at Dec 7, 2019, 12:00 PM PST. It was in force for 114 min.
The area
The counties it named.
The facts
- Issued
- Dec 7, 2019, 10:54 AM PST (18:54 UTC)
- In effect from
- Dec 7, 2019, 12:00 PM PST
- Expired
- Dec 7, 2019, 1:54 PM PST
- In force
- 114 min
- Issued by
- NWS Eureka, CA
Counties Del Norte County, CA, Humboldt County, CA
The radar
The Eureka (Bunker Hill) radar (KBHX), 86 km from the middle of the area, began a volume at 18:54 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, 6.9 hours before the alert went out and 158 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
- 917 m above ground
- 0-6 km bulk shear
- 38 kt
- 0-1 km storm-relative helicity
- 167 m²/s²
- 0-3 km storm-relative helicity
- 294 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
309 WWUS76 KEKA 071854 NPWEKA URGENT - WEATHER MESSAGE National Weather Service Eureka CA 1054 AM PST Sat Dec 7 2019 CAZ101>106-080000- /O.NEW.KEKA.WI.Y.0020.191207T2000Z-191208T0000Z/ Coastal Del Norte-Del Norte Interior-Northern Humboldt Coast- Southwestern Humboldt-Northern Humboldt Interior- Southern Humboldt Interior- 1054 AM PST Sat Dec 7 2019 ...WIND ADVISORY IN EFFECT UNTIL 4 PM PST THIS AFTERNOON... * WHAT...South winds 20 to 30 mph with gusts up to 45 mph expected. Gusts from 55 to 65 mph across exposed ridges. * WHERE...Coastal Del Norte, Del Norte Interior, Northern Humboldt Coast, Southwestern Humboldt, Northern Humboldt Interior 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. && $$
1 follow-up statement
513 WWUS76 KEKA 072154 NPWEKA URGENT - WEATHER MESSAGE National Weather Service Eureka CA 154 PM PST Sat Dec 7 2019 CAZ101>106-072300- /O.CAN.KEKA.WI.Y.0020.000000T0000Z-191208T0000Z/ Coastal Del Norte-Del Norte Interior-Northern Humboldt Coast- Southwestern Humboldt-Northern Humboldt Interior- Southern Humboldt Interior- 154 PM PST Sat Dec 7 2019 ...WIND ADVISORY IS CANCELLED... $$
The office that day
Everything else NWS Eureka, CA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 6, 8:34 PM PST | Small Craft Advisory | EKA | 36 hr | |
| Dec 7, 8:08 AM PST | Gale Warning | EKA | 6 hr |
Nearby
Wind Advisories in California, 2019Every wind advisory in 2019
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.