Alert archive / California / Hard Freeze Warnings in 2023
Hard Freeze Warning 10, NWS Eureka, CA
NWS Eureka, CA issued this hard freeze warning at Apr 2, 2023, 2:08 PM PDT for Lake County, Mendocino County, California. It took effect at Apr 3, 2023, 2:00 AM PDT. 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
- Apr 2, 2023, 2:08 PM PDT (21:08 UTC)
- In effect from
- Apr 3, 2023, 2:00 AM PDT
- Expired
- Apr 3, 2023, 9:00 AM PDT
- In force
- 7 hr
- Issued by
- NWS Eureka, CA
Counties Lake County, CA, Mendocino County, CA
The radar
The Beale AFB radar (KBBX), 128 km from the middle of the area, began a volume at 21:09 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, 9.1 hours before the alert went out and 188 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
- 632 m above ground
- 0-6 km bulk shear
- 38 kt
- 0-1 km storm-relative helicity
- 23 m²/s²
- 0-3 km storm-relative helicity
- 122 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 Apr 2, 3:49 AM PDT, 10 hours 19 minutes earlier.
Area forecast discussion, Apr 2, 3:49 AM PDT, 10 hours 19 minutes before
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</html>Hazardous weather outlook, Apr 2, 2:07 PM PDT, 1 minute before
Hazardous Weather Outlook National Weather Service Eureka CA 207 PM PDT Sun Apr 2 2023 CAZ101-103-104-107>109-112-022215- Coastal Del Norte-Northern Humboldt Coast-Southwestern Humboldt- Northern Trinity-Southern Trinity-Mendocino Coast- Southwestern Mendocino Interior- 207 PM PDT Sun Apr 2 2023 This hazardous weather outlook is for northwest California. .DAY ONE...This afternoon and tonight. No hazardous weather is expected at this time. .DAYS TWO THROUGH SEVEN...Monday through Saturday. No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. CAZ113-115-022215- Southeastern Mendocino Interior-Southern Lake- 207 PM PDT Sun Apr 2 2023 ...FREEZE WARNING IN EFFECT FROM 2 AM TO 9 AM PDT MONDAY... This hazardous weather outlook is for northwest California. .DAY ONE...This afternoon and tonight. A Freeze Warning is currently in effect. .DAYS TWO THROUGH SEVEN...Monday through Saturday. A Freeze Warning is currently in effect. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. CAZ102-105-106-022215- Del Norte Interior-Northern Humboldt Interior- Southern Humboldt Interior- 207 PM PDT Sun Apr 2 2023 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL 2 AM PDT MONDAY... This hazardous weather outlook is for northwest California. .DAY ONE...This afternoon and tonight. A Winter Weather Advisory is currently in effect. .DAYS TWO THROUGH SEVEN...Monday through Saturday. No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. CAZ110-111-114-022215- Northwestern Mendocino Interior-Northeastern Mendocino Interior- Northern Lake- 207 PM PDT Sun Apr 2 2023 ...HARD FREEZE WARNING IN EFFECT FROM 2 AM TO 9 AM PDT MONDAY... This hazardous weather outlook is for northwest California. .DAY ONE...This afternoon and tonight. A Hard Freeze Warning is currently in effect. .DAYS TWO THROUGH SEVEN...Monday through Saturday. A Hard Freeze Warning is currently in effect. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time.
The office that day
Everything else NWS Eureka, CA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 1, 8:54 PM PDT | Small Craft Advisory | EKA | 66 hr | |
| Apr 2, 2:08 PM PDT | Freeze Warning | EKA | Mendocino | 19 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.