Alert archive / California / Wind Advisories in 2018
Wind Advisory 18, NWS Eureka, CA
NWS Eureka, CA issued this wind advisory at Dec 20, 2018, 3:34 AM PST for Del Norte County, Humboldt County, California. It took effect at Dec 20, 2018, 7:00 AM PST. It was in force for 7 hr.
The area
The counties it named.
The facts
- Issued
- Dec 20, 2018, 3:34 AM PST (11:34 UTC)
- In effect from
- Dec 20, 2018, 7:00 AM PST
- Expired
- Dec 20, 2018, 2:00 PM PST
- In force
- 7 hr
- 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 11:35 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, 11.6 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
- 1091 m above ground
- 0-6 km bulk shear
- 49 kt
- 0-1 km storm-relative helicity
- 154 m²/s²
- 0-3 km storm-relative helicity
- 228 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
503 WWUS76 KEKA 201134 NPWEKA URGENT - WEATHER MESSAGE National Weather Service Eureka CA 334 AM PST Thu Dec 20 2018 CAZ102-104>106-202200- /O.NEW.KEKA.WI.Y.0018.181220T1500Z-181220T2200Z/ Del Norte Interior-Southwestern Humboldt- Northern Humboldt Interior-Southern Humboldt Interior- 334 AM PST Thu Dec 20 2018 ...WIND ADVISORY IN EFFECT FROM 7 AM THIS MORNING TO 2 PM PST THIS AFTERNOON... The National Weather Service in Eureka has issued a Wind Advisory...which is in effect from 7 AM this morning to 2 PM PST this afternoon. * WINDS...Southerly 20 to 30 mph with gusts around 45 mph. * LOCATIONS INCLUDE...Kneeland and other exposed areas at elevations above 1500 feet. * HIGHWAY(S) IMPACTED...Hwy 101, Hwy 299 and HWY 36 on the exposed summits. * FOR A DETAILED VIEW OF THE HAZARD AREA...visit http://www.wrh.noaa.gov/map PRECAUTIONARY/PREPAREDNESS ACTIONS... A Wind Advisory means that winds of 35 mph or greater are expected. Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution. && $$
1 follow-up statement
722 WWUS76 KEKA 202203 NPWEKA URGENT - WEATHER MESSAGE National Weather Service Eureka CA 203 PM PST Thu Dec 20 2018 CAZ102-104>106-202315- /O.EXP.KEKA.WI.Y.0018.000000T0000Z-181220T2200Z/ Del Norte Interior-Southwestern Humboldt- Northern Humboldt Interior-Southern Humboldt Interior- 203 PM PST Thu Dec 20 2018 ...WIND ADVISORY HAS EXPIRED... Winds have reduced below advisory critera, and the wind advisory will be allowed to expire. $$
The office that day
Everything else NWS Eureka, CA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 20, 12:21 PM PST | Areal Flood Advisory | EKA | Del Norte | 3 hr |
| Dec 20, 12:46 PM PST | Small Craft Advisory | EKA | 29 hr |
Nearby
Wind Advisories in California, 2018Every wind advisory in 2018
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.