Alert archive / California / High Wind Warnings in 2017
High Wind Warning 4, NWS Eureka, CA
NWS Eureka, CA issued this high wind warning at Feb 20, 2017, 3:40 PM PST for 4 counties in California. It took effect at Feb 20, 2017, 7:00 PM PST. It was in force for 7 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Feb 20, 2017, 3:40 PM PST (23:40 UTC)
- In effect from
- Feb 20, 2017, 7:00 PM PST
- Expired
- Feb 21, 2017, 1:54 AM PST
- In force
- 7 hr
- Issued by
- NWS Eureka, CA
Counties Del Norte County, CA, Humboldt County, CA, Mendocino County, CA, Trinity County, CA
The radar
The Eureka (Bunker Hill) radar (KBHX), 60 km from the middle of the area, began a volume at 23:41 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, 11.7 hours before the alert went out and 204 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
- 910 m above ground
- 0-6 km bulk shear
- 118 kt
- 0-1 km storm-relative helicity
- 277 m²/s²
- 0-3 km storm-relative helicity
- 591 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
360 WWUS76 KEKA 202340 NPWEKA URGENT - WEATHER MESSAGE National Weather Service Eureka CA 340 PM PST Mon Feb 20 2017 .A developing storm system will bring a return of strong southerly winds to the area tonight early Tuesday. Winds will diminish from south to north Tuesday morning. CAZ104>108-110-111-211245- /O.UPG.KEKA.HW.A.0005.170221T0000Z-170221T1200Z/ /O.NEW.KEKA.HW.W.0004.170221T0300Z-170221T1700Z/ Southwestern Humboldt-Northern Humboldt Interior- Southern Humboldt Interior-Northern Trinity-Southern Trinity- Northwestern Mendocino Interior-Northeastern Mendocino Interior- 340 PM PST Mon Feb 20 2017 ...HIGH WIND WARNING IN EFFECT FROM 7 PM THIS EVENING TO 9 AM TUESDAY... * WINDS...South winds will increase again tonight with speeds of 30 to 40 mph and gusts to 50 to 70 mph over exposed coastal headlands and higher inland ridges. Elsewhere, south winds will increase to 25 to 35 mph with gusts of 45 to 55 mph. * LOCATIONS INCLUDE...Near Petrolia, Honeydew, Ettersberg, Willow Creek, Orleans, Garberville, Bridgeville, Weaverville, Burnt Ranch, Trinity Center, Hayfork. Ruth, Legget, and Laytonville. * HIGHWAYS IMPACTED...Portions of 101, 299, 96, 36, 3, and 162. * FOR A DETAILED VIEW OF THE HAZARD AREA...visit http://www.wrh.noaa.gov/map PRECAUTIONARY/PREPAREDNESS ACTIONS... A High Wind Warning means a hazardous high wind event is expected or occurring. Sustained wind speeds of at least 40 mph or gusts of 58 mph or more can lead to property damage. $$ CAZ101-102-211245- /O.NEW.KEKA.HW.W.0004.170221T0300Z-170221T1700Z/ Coastal Del Norte-Del Norte Interior- 340 PM PST Mon Feb 20 2017 ...HIGH WIND WARNING IN EFFECT FROM 7 PM THIS EVENING TO 9 AM TUESDAY... * WINDS...South winds will increase again tonight with speeds of 30 to 40 mph and gusts to 50 to 70 mph over exposed coastal headlands and higher inland ridges. Elsewhere, south winds will increase to 25 to 35 mph with gusts of 45 to 55 mph. * LOCATIONS INCLUDE...Crescent City and Gasquet. * HIGHWAYS IMPACTED...Portions of 101 and 199. * FOR A DETAILED VIEW OF THE HAZARD AREA...visit http://www.wrh.noaa.gov/map PRECAUTIONARY/PREPAREDNESS ACTIONS... A High Wind Warning means a hazardous high wind event is expected or occurring. Sustained wind speeds of at least 40 mph or gusts of 58 mph or more can lead to property damage. $$ CAZ109-113-211245- /O.UPG.KEKA.HW.A.0005.170221T0000Z-170221T1200Z/ /O.NEW.KEKA.WI.Y.0019.170221T0300Z-170221T1700Z/ Mendocino Coast-Southeastern Mendocino Interior- 340 PM PST Mon Feb 20 2017 ...WIND ADVISORY IN EFFECT FROM 7 PM THIS EVENING TO 9 AM TUESDAY... * WINDS...South winds will increase again tonight with speeds of 25 to 35 mph and gusts of 45 to 55 mph. * LOCATIONS INCLUDE...Point Arena, Ukiah, and Hopland. * HIGHWAYS IMPACTED...Portions of 1 and 101. * 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 are expected. Winds this strong can make driving difficult,especially for high profile vehicles. Use extra caution. $$ CAZ103-112-211245- /O.NEW.KEKA.WI.Y.0019.170221T0300Z-170221T1700Z/ Northern Humboldt Coast-Southwestern Mendocino Interior- 340 PM PST Mon Feb 20 2017 ...WIND ADVISORY IN EFFECT FROM 7 PM THIS EVENING TO 9 AM TUESDAY... * WINDS...South winds will increase again tonight with speeds of 25 to 35 mph and gusts of 45 to 55 mph. * LOCATIONS INCLUDE...Arcata, Eureka, Fortuna, Boonville, and Comptche. * HIGHWAYS IMPACTED...Portions of 101 and 128. * FOR A DETAILED VIEW OF THE HAZARD AREA...visit http://www.wrh.noaa.gov/map PRECAUTIONARY/PREPAREDNESS ACTIONS... A Wind Advisory means that winds of 35 mph are expected. Winds this strong can make driving difficult,especially for high profile vehicles. Use extra caution. $$
1 follow-up statement
341 WWUS76 KEKA 210954 NPWEKA URGENT - WEATHER MESSAGE National Weather Service Eureka CA 154 AM PST Tue Feb 21 2017 .A storm system passing NW of the area will bring strong southwesterly winds to the area early this morning. Winds will diminish from south to north this morning. CAZ101-102-104>106-211700- /O.CAN.KEKA.HW.W.0004.000000T0000Z-170221T1700Z/ /O.EXA.KEKA.WI.Y.0019.000000T0000Z-170221T1700Z/ Coastal Del Norte-Del Norte Interior-Southwestern Humboldt- Northern Humboldt Interior-Southern Humboldt Interior- 154 AM PST Tue Feb 21 2017 ...WIND ADVISORY IN EFFECT UNTIL 9 AM PST THIS MORNING... ...HIGH WIND WARNING IS CANCELLED... The National Weather Service in Eureka has issued a Wind Advisory...which is in effect until 9 AM PST this morning. the High Wind Warning has been canceled. * WINDS...Southwest winds will peak around 25 to 35 mph with gusts of 40 to 50 mph early this morning. * LOCATIONS INCLUDE...Crescent City...Gasquet...Patrolia... Honeydew...Ettersberg. * HIGHWAY(S) IMPACTED...Hwy 101...Hwy 199...Hwy 299...HWY 96...HWY 36. * 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 are expected. Winds this strong can make driving difficult,especially for high profile vehicles. Use extra caution. && $$ CAZ107-108-110-111-211100- /O.CAN.KEKA.HW.W.0004.000000T0000Z-170221T1700Z/ Northern Trinity-Southern Trinity-Northwestern Mendocino Interior- Northeastern Mendocino Interior- 154 AM PST Tue Feb 21 2017 ...HIGH WIND WARNING IS CANCELLED... The National Weather Service in Eureka has cancelled the High Wind Warning. The low pressure system bringing the winds is now moving north of the area and weakening. Winds are now expected to be southwest 10 to 20 mph this morning. $$ CAZ109-112-113-211100- /O.CAN.KEKA.WI.Y.0019.000000T0000Z-170221T1700Z/ Mendocino Coast-Southwestern Mendocino Interior- Southeastern Mendocino Interior- 154 AM PST Tue Feb 21 2017 ...WIND ADVISORY IS CANCELLED... The National Weather Service in Eureka has cancelled the Wind Advisory. The low pressure system bringing the winds is now moving north of the area and weakening. Winds are now expected to be southwest 10 to 20 mph this morning. $$ CAZ103-211700- /O.CON.KEKA.WI.Y.0019.000000T0000Z-170221T1700Z/ Northern Humboldt Coast- 154 AM PST Tue Feb 21 2017 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 9 AM PST THIS MORNING... * WINDS...Southwest winds will peak around 25 to 35 mph with gusts of 40 to 50 mph early this morning. * LOCATIONS INCLUDE...Arcata...Eureka...Fortuna. * HIGHWAY(S) IMPACTED...Hwy 101. * FOR A DETAILED VIEW OF THE HAZARD AREA...visit http://www.wrh.noaa.gov/map $$
The office that day
Everything else NWS Eureka, CA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 19, 4:06 PM PST | High Wind Watch | EKA | Humboldt, Mendocino, Trinity | 24 hr |
| Feb 19, 4:06 PM PST | Wind Advisory | EKA | Del Norte, Humboldt | 3 hr |
| Feb 19, 7:19 PM PST | Wind Advisory | EKA | Del Norte, Humboldt | 13 hr |
| Feb 19, 9:16 PM PST | Gale Watch | EKA | 18 hr | |
| Feb 20, 4:33 AM PST | River Flood Warning | EKA | Mendocino | 37 hr |
| Feb 20, 9:00 AM PST | Small Craft Advisory | EKA | 6 hr | |
| Feb 20, 11:58 AM PST | Hazardous Seas Warning | EKA | 12 hr | |
| Feb 20, 2:48 PM PST | River Flood Watch | EKA | Mendocino | 5 hr |
| Feb 20, 3:06 PM PST | Gale Warning | EKA | 18 hr | |
| Feb 20, 3:40 PM PST | Wind Advisory | EKA | Del Norte, Humboldt, Mendocino | 17 hr |
Nearby
High Wind Warnings in California, 2017Every high wind warning in 2017
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.