Alert archive / California / Frost Advisories in 2024
Frost Advisory 16, NWS San Francisco Bay Area, CA
NWS San Francisco Bay Area, CA issued this frost advisory at Mar 3, 2024, 2:13 AM PST for Marin County, Napa County, Sonoma County, California. It took effect at Mar 4, 2024, 1:00 AM PST. It was in force for 8 hr.
The area
The counties it named.
The facts
- Issued
- Mar 3, 2024, 2:13 AM PST (10:13 UTC)
- In effect from
- Mar 4, 2024, 1:00 AM PST
- Expired
- Mar 4, 2024, 9:00 AM PST
- In force
- 8 hr
- Issued by
- NWS San Francisco Bay Area, CA
Counties Marin County, CA, Napa County, CA, Sonoma County, CA
The radar
The Sacramento radar (KDAX), 88 km from the middle of the area, began a volume at 10:16 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 00:00Z, 10.2 hours before the alert went out and 81 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
- 36 J/kg
- Mixed-layer CIN
- -2 J/kg
- Mixed-layer LCL
- 936 m above ground
- 0-6 km bulk shear
- 117 kt
- 0-1 km storm-relative helicity
- 126 m²/s²
- 0-3 km storm-relative helicity
- 199 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this frost advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS San Francisco Bay Area, CA wrote its last area forecast discussion before this frost advisory went out at Mar 3, 12:47 AM PST, 1 hour 26 minutes earlier.
Area forecast discussion, Mar 3, 12:47 AM PST, 1 hour 26 minutes before
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</html>The office that day
Everything else NWS San Francisco Bay Area, CA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 2, 4:22 PM PST | Special Marine Warning | MTR | 53 min | |
| Mar 2, 4:24 PM PST | Special Weather Statement | MTR | San Benito | 36 min |
| Mar 2, 4:36 PM PST | Areal Flood Advisory | MTR | Monterey, San Benito | 3 hr |
| Mar 2, 5:01 PM PST | Special Marine Warning | MTR | 59 min | |
| Mar 2, 5:13 PM PST | Special Weather Statement | MTR | Santa Cruz | 32 min |
| Mar 2, 5:30 PM PST | Special Marine Warning | MTR | 60 min | |
| Mar 2, 5:46 PM PST | Special Weather Statement | MTR | Santa Cruz | 29 min |
| Mar 2, 6:07 PM PST | Areal Flood Advisory | MTR | Monterey, San Benito, Santa Clara, Santa Cruz | 113 min |
| Mar 2, 6:14 PM PST | Tornado Warning | MTR | San Benito, Santa Cruz | 19 min |
| Mar 2, 6:17 PM PST | Special Weather Statement | MTR | Santa Cruz | 28 min |
| Mar 2, 6:18 PM PST | Tornado Warning | MTR | Monterey | 13 min |
| Mar 2, 6:29 PM PST | Tornado Warning | MTR | San Benito | 31 min |
| Mar 2, 6:47 PM PST | Areal Flood Advisory | MTR | Monterey | 3 hr |
| Mar 2, 6:54 PM PST | Special Weather Statement | MTR | San Benito | 36 min |
Nearby
Frost Advisories in California, 2024Every frost advisory in 2024
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.