Alert archive / California / Freeze Warnings in 2019
Freeze Warning 2, NWS Eureka, CA
NWS Eureka, CA issued this freeze warning at Mar 7, 2019, 3:15 PM PST for Mendocino County, California. It took effect at Mar 8, 2019, 12:00 AM PST. 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
- Mar 7, 2019, 3:15 PM PST (23:15 UTC)
- In effect from
- Mar 8, 2019, 12:00 AM PST
- Expired
- Mar 8, 2019, 8:00 AM PST
- In force
- 8 hr
- Issued by
- NWS Eureka, CA
County Mendocino County, CA
The radar
The Eureka (Bunker Hill) radar (KBHX), 139 km from the middle of the area, began a volume at 23:15 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
Oakland, CA (KOAK), launched 12:00Z, 11.3 hours before the alert went out and 218 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
- 750 m above ground
- 0-6 km bulk shear
- 17 kt
- 0-1 km storm-relative helicity
- 19 m²/s²
- 0-3 km storm-relative helicity
- 44 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
658 WWUS76 KEKA 072315 NPWEKA URGENT - WEATHER MESSAGE National Weather Service Eureka CA 315 PM PST Thu Mar 7 2019 CAZ110-111-081215- /O.UPG.KEKA.FZ.A.0001.190308T0800Z-190308T1600Z/ /O.NEW.KEKA.FZ.W.0002.190308T0800Z-190308T1600Z/ Northwestern Mendocino Interior-Northeastern Mendocino Interior- 315 PM PST Thu Mar 7 2019 ...FREEZE WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 8 AM PST FRIDAY... The National Weather Service in Eureka has issued a Freeze Warning...which is in effect from midnight tonight to 8 AM PST Friday. The Freeze Watch is no longer in effect. * LOW TEMPERATURES...Upper 20s to lower 30s. * LOCATIONS INCLUDE...Leggett, Laytonville, Willits, Covelo. * 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. && $$ CAZ109-112-113-081215- /O.CON.KEKA.FR.Y.0002.190308T0800Z-190308T1600Z/ Mendocino Coast-Southwestern Mendocino Interior- Southeastern Mendocino Interior- 315 PM PST Thu Mar 7 2019 ...FROST ADVISORY REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 8 AM PST FRIDAY... * LOW TEMPERATURES...mid 30s. * LOCATIONS INCLUDE...Boonville, Comptche, Ukiah, Hopland. * FOR A DETAILED VIEW OF THE HAZARD AREA...visit http://www.wrh.noaa.gov/map $$
2 follow-up statements
284 WWUS76 KEKA 081142 NPWEKA URGENT - WEATHER MESSAGE National Weather Service Eureka CA 342 AM PST Fri Mar 8 2019 CAZ110-111-081600- /O.CON.KEKA.FZ.W.0002.000000T0000Z-190308T1600Z/ Northwestern Mendocino Interior-Northeastern Mendocino Interior- 342 AM PST Fri Mar 8 2019 ...FREEZE WARNING REMAINS IN EFFECT UNTIL 8 AM THIS MORNING... * LOW TEMPERATURES...Upper 20s to lower 30s. * LOCATIONS INCLUDE...Leggett, Laytonville, Willits, and Covelo. * FOR A DETAILED VIEW OF THE HAZARD AREA...visit http://www.wrh.noaa.gov/map $$ CAZ109-112-113-081600- /O.CON.KEKA.FR.Y.0002.000000T0000Z-190308T1600Z/ Mendocino Coast-Southwestern Mendocino Interior- Southeastern Mendocino Interior- 342 AM PST Fri Mar 8 2019 ...FROST ADVISORY REMAINS IN EFFECT UNTIL 8 AM THIS MORNING... * LOW TEMPERATURES...Mid 30s. * LOCATIONS INCLUDE...Boonville, Comptche, Ukiah, and Hopland. * FOR A DETAILED VIEW OF THE HAZARD AREA...visit http://www.wrh.noaa.gov/map $$
109 WWUS76 KEKA 081544 NPWEKA URGENT - WEATHER MESSAGE National Weather Service Eureka CA 744 AM PST Fri Mar 8 2019 ...A Frosty Start to the Morning in Mendocino County... CAZ110-111-081645- /O.EXP.KEKA.FZ.W.0002.000000T0000Z-190308T1600Z/ Northwestern Mendocino Interior-Northeastern Mendocino Interior- 744 AM PST Fri Mar 8 2019 ...FREEZE WARNING WILL EXPIRE AT 8 AM PST THIS MORNING... While temperatures have bottomed out in the upper 20s to low 30s early this morning, readings will begin to rise quickly with at least partly sunny skies. $$ CAZ109-112-113-081645- /O.EXP.KEKA.FR.Y.0002.000000T0000Z-190308T1600Z/ Mendocino Coast-Southwestern Mendocino Interior- Southeastern Mendocino Interior- 744 AM PST Fri Mar 8 2019 ...FROST ADVISORY WILL EXPIRE AT 8 AM PST THIS MORNING... While temperatures have bottomed out in the low to mid 30s early this morning, readings will begin to rise quickly with at least partly sunny skies. $$
The office that day
Everything else NWS Eureka, CA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 7, 3:17 AM PST | Frost Advisory | EKA | Mendocino | 29 hr |
| Mar 7, 3:17 AM PST | Freeze Watch | EKA | Mendocino | 12 hr |
Nearby
Freeze Warnings in California, 2019Every freeze warning 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.