Alert archive / California / Severe Thunderstorm Warnings in 1988
Severe Thunderstorm Warning 2, NWS San Francisco Bay Area, CA
NWS San Francisco Bay Area, CA issued this severe thunderstorm warning at Feb 28, 1988, 2:22 AM PST for Napa County, Sonoma County, California. It was in force for 38 min.
The area
The counties it named.
The facts
- Issued
- Feb 28, 1988, 2:22 AM PST (10:22 UTC)
- Expired
- Feb 28, 1988, 3:00 AM PST
- In force
- 38 min
- Issued by
- NWS San Francisco Bay Area, CA
- Area
- Whole counties
Counties Napa County, CA, Sonoma County, CA
The radar
The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.
The nearest sounding before it
Oakland, CA (KOAK), launched 00:00Z, 10.4 hours before the alert went out and 95 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
- 188 J/kg
- Mixed-layer CIN
- -54 J/kg
- Mixed-layer LCL
- 1035 m above ground
- 0-6 km bulk shear
- 32 kt
- 0-1 km storm-relative helicity
- 84 m²/s²
- 0-3 km storm-relative helicity
- 149 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.3
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
The office that day
Everything else NWS San Francisco Bay Area, CA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 28, 12:54 AM PST | Severe Thunderstorm Warning | MTR | Napa | 36 min |
Nearby
Severe Thunderstorm Warnings in California, 1988Every severe thunderstorm warning in 1988
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.