Alert archive / California / Freeze Warnings in 2018
Freeze Warning 7, NWS Eureka, CA
NWS Eureka, CA issued this freeze warning at Oct 14, 2018, 2:25 AM PDT for Trinity County, California. It took effect at Oct 15, 2018, 1:00 AM PDT. It was in force for 8 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
- Oct 14, 2018, 2:25 AM PDT (09:25 UTC)
- In effect from
- Oct 15, 2018, 1:00 AM PDT
- Expired
- Oct 15, 2018, 9:00 AM PDT
- In force
- 8 hr
- Issued by
- NWS Eureka, CA
County Trinity County, CA
The radar
The Eureka (Bunker Hill) radar (KBHX), 101 km from the middle of the area, began a volume at 09:30 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, 9.4 hours before the alert went out and 193 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
- 3170 m above ground
- 0-6 km bulk shear
- 28 kt
- 0-1 km storm-relative helicity
- -40 m²/s²
- 0-3 km storm-relative helicity
- -56 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
617 WWUS76 KEKA 140925 NPWEKA URGENT - WEATHER MESSAGE National Weather Service Eureka CA 225 AM PDT Sun Oct 14 2018 CAZ107-108-142230- /O.NEW.KEKA.FZ.W.0007.181015T0800Z-181015T1600Z/ Northern Trinity-Southern Trinity- Including the cities of Weaverville, Carrville, Douglas City, Helena, Junction City, Big Bar, Trinity Center, Del Loma, Forest Glen, Hayfork, Hyampom, Peanut, Ruth, and Zenia 225 AM PDT Sun Oct 14 2018 ...FREEZE WARNING IN EFFECT FROM 1 AM TO 9 AM PDT MONDAY... The National Weather Service in Eureka has issued a Freeze Warning...which is in effect from 1 AM to 9 AM PDT Monday. * LOW TEMPERATURES...Low to Mid 30's. Hayfork, Peanut, and Douglas City are most likely to experience sub-freezing temperatures while others areas will experience near freezing temperatures. * LOCATIONS INCLUDE...Weaverville...Lewiston...Douglas City...Hayfork...Ruth...Peanut. * FOR A DETAILED VIEW OF THE HAZARD AREA...visit http://www.wrh.noaa.gov/map PRECAUTIONARY/PREPAREDNESS ACTIONS... A Freeze Warning means sub-freezing temperatures are imminent or highly likely. These conditions will kill crops and other sensitive vegetation. && $$
4 follow-up statements
821 WWUS76 KEKA 141856 NPWEKA URGENT - WEATHER MESSAGE National Weather Service Eureka CA 1156 AM PDT Sun Oct 14 2018 CAZ107-108-150800- /O.CON.KEKA.FZ.W.0007.181015T0800Z-181015T1600Z/ Northern Trinity-Southern Trinity- Including the cities of Weaverville, Carrville, Douglas City, Helena, Junction City, Big Bar, Trinity Center, Del Loma, Forest Glen, Hayfork, Hyampom, Peanut, Ruth, and Zenia 1156 AM PDT Sun Oct 14 2018 ...FREEZE WARNING REMAINS IN EFFECT FROM 1 AM TO 9 AM PDT MONDAY... * LOW TEMPERATURES...Low to Mid 30's. Hayfork, Peanut, and Douglas City are most likely to experience sub-freezing temperatures while others areas will experience near freezing temperatures. * LOCATIONS INCLUDE...Weaverville...Lewiston...Douglas City...Hayfork...Ruth...Peanut. * FOR A DETAILED VIEW OF THE HAZARD AREA...visit http://www.wrh.noaa.gov/map $$ CAZ113-150800- /O.NEW.KEKA.WI.Y.0009.181015T0300Z-181015T1200Z/ Southeastern Mendocino Interior- Including the cities of Calpella, Hopland, Redwood Vly, Talmage, and Ukiah 1156 AM PDT Sun Oct 14 2018 ...WIND ADVISORY IN EFFECT FROM 8 PM THIS EVENING TO 5 AM PDT MONDAY... The National Weather Service in Eureka has issued a Wind Advisory...which is in effect from 8 PM this evening to 5 AM PDT Monday. * WINDS...Sustained easterly winds from 25 to 35 mph with gusts to 45 mph. * LOCATIONS INCLUDE...Locations south-southeast of Hopland. * HIGHWAY(S) IMPACTED...Highway 101 south of Hopland. * 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. && $$
820 WWUS76 KEKA 150748 NPWEKA URGENT - WEATHER MESSAGE National Weather Service Eureka CA 1248 AM PDT Mon Oct 15 2018 CAZ107-108-151600- /O.CON.KEKA.FZ.W.0007.181015T0800Z-181015T1600Z/ Northern Trinity-Southern Trinity- Including the cities of Weaverville, Carrville, Douglas City, Helena, Junction City, Big Bar, Trinity Center, Del Loma, Forest Glen, Hayfork, Hyampom, Peanut, Ruth, and Zenia 1248 AM PDT Mon Oct 15 2018 ...FREEZE WARNING REMAINS IN EFFECT UNTIL 9 AM PDT THIS MORNING... * LOW TEMPERATURES...Low to Mid 30's. Hayfork, Peanut, and Douglas City are most likely to experience sub-freezing temperatures while others areas will experience near freezing temperatures. * LOCATIONS INCLUDE...Weaverville...Lewiston...Douglas City...Hayfork...Ruth...Peanut. * FOR A DETAILED VIEW OF THE HAZARD AREA...visit http://www.wrh.noaa.gov/map $$ CAZ113-151200- /O.CON.KEKA.WI.Y.0009.000000T0000Z-181015T1200Z/ Southeastern Mendocino Interior- Including the cities of Calpella, Hopland, Redwood Vly, Talmage, and Ukiah 1248 AM PDT Mon Oct 15 2018 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 5 AM PDT EARLY THIS MORNING... * WINDS...Sustained easterly winds from 20 to 30 mph with gusts to 55 mph. * LOCATIONS INCLUDE...Locations south-southeast of Hopland. * HIGHWAY(S) IMPACTED...Highway 101 south of Hopland. * FOR A DETAILED VIEW OF THE HAZARD AREA...visit http://www.wrh.noaa.gov/map $$
997 WWUS76 KEKA 151149 NPWEKA URGENT - WEATHER MESSAGE National Weather Service Eureka CA 449 AM PDT Mon Oct 15 2018 CAZ113-151300- /O.EXP.KEKA.WI.Y.0009.000000T0000Z-181015T1200Z/ Southeastern Mendocino Interior- Including the cities of Calpella, Hopland, Redwood Vly, Talmage, and Ukiah 449 AM PDT Mon Oct 15 2018 ...WIND ADVISORY WILL EXPIRE AT 5 AM PDT THIS MORNING... $$ CAZ107-108-151600- /O.CON.KEKA.FZ.W.0007.000000T0000Z-181015T1600Z/ Northern Trinity-Southern Trinity- Including the cities of Weaverville, Carrville, Douglas City, Helena, Junction City, Big Bar, Trinity Center, Del Loma, Forest Glen, Hayfork, Hyampom, Peanut, Ruth, and Zenia 449 AM PDT Mon Oct 15 2018 ...FREEZE WARNING REMAINS IN EFFECT UNTIL 9 AM PDT THIS MORNING... * LOW TEMPERATURES...Upper 20's to low 30's. Hayfork, Peanut, and Douglas City are most likely to experience sub-freezing temperatures while others areas will experience near freezing temperatures. * LOCATIONS INCLUDE...Weaverville...Lewiston...Douglas City...Hayfork...Ruth...Peanut. * FOR A DETAILED VIEW OF THE HAZARD AREA...visit http://www.wrh.noaa.gov/map $$
267 WWUS76 KEKA 151542 NPWEKA URGENT - WEATHER MESSAGE National Weather Service Eureka CA 842 AM PDT Mon Oct 15 2018 CAZ107-108-151645- /O.EXP.KEKA.FZ.W.0007.000000T0000Z-181015T1600Z/ Northern Trinity-Southern Trinity- Including the cities of Weaverville, Carrville, Douglas City, Helena, Junction City, Big Bar, Trinity Center, Del Loma, Forest Glen, Hayfork, Hyampom, Peanut, Ruth, and Zenia 842 AM PDT Mon Oct 15 2018 ...FREEZE WARNING WILL EXPIRE AT 9 AM PDT THIS MORNING... $$
The office that day
Everything else NWS Eureka, CA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 14, 11:56 AM PDT | Wind Advisory | EKA | Mendocino | 17 hr |
Nearby
Freeze Warnings in California, 2018Every freeze warning 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.