Alert archive / California / Hard Freeze Warnings in 2023
Hard Freeze Warning 2, NWS Eureka, CA
NWS Eureka, CA issued this hard freeze warning at Feb 13, 2023, 2:05 PM PST for Del Norte County, Humboldt County, Mendocino County, California. It took effect at Feb 15, 2023, 1:00 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
- Feb 13, 2023, 2:05 PM PST (22:05 UTC)
- In effect from
- Feb 15, 2023, 1:00 AM PST
- Expired
- Feb 15, 2023, 9:00 AM PST
- In force
- 8 hr
- Issued by
- NWS Eureka, CA
Counties Del Norte County, CA, Humboldt County, CA, Mendocino County, CA
The radar
The Eureka (Bunker Hill) radar (KBHX), 47 km from the middle of the area, began a volume at 22:10 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, 10.1 hours before the alert went out and 349 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
- 2158 m above ground
- 0-6 km bulk shear
- 35 kt
- 0-1 km storm-relative helicity
- 64 m²/s²
- 0-3 km storm-relative helicity
- 86 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this hard freeze warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Eureka, CA wrote its last area forecast discussion before this hard freeze warning went out at Feb 13, 4:02 AM PST, 10 hours 3 minutes earlier.
Area forecast discussion, Feb 13, 4:02 AM PST, 10 hours 3 minutes before
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</html>Hazardous weather outlook, Feb 13, 2:04 PM PST, 1 minute before
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</html>The office that day
Everything else NWS Eureka, CA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 13, 3:16 AM PST | Gale Warning | EKA | 39 hr | |
| Feb 13, 3:16 AM PST | Hazardous Seas Watch | EKA | 11 hr | |
| Feb 13, 2:35 PM PST | Hazardous Seas Warning | EKA | 39 hr |
Nearby
Hard Freeze Warnings in California, 2023Every hard freeze warning in 2023
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.