Alert archive / California / Severe Thunderstorm Warnings in 2007
Severe Thunderstorm Warning 9, NWS Hanford, CA
NWS Hanford, CA issued this severe thunderstorm warning at Oct 29, 2007, 1:16 PM PDT for 4 counties in California. It was in force for 29 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Oct 29, 2007, 1:16 PM PDT (20:16 UTC)
- Expired
- Oct 29, 2007, 1:45 PM PDT
- In force
- 29 min
- Issued by
- NWS Hanford, CA
- Area
- Storm-based polygon
Counties Fresno County, CA, Madera County, CA, Mariposa County, CA, Tuolumne County, CA
The radar
The San Joaquin Valley radar (KHNX), 121 km from the middle of the area, began a volume at 20:18 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, 8.3 hours before the alert went out and 213 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
- 1240 m above ground
- 0-6 km bulk shear
- 35 kt
- 0-1 km storm-relative helicity
- 75 m²/s²
- 0-3 km storm-relative helicity
- 151 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Hanford, CA wrote its last area forecast discussion before this severe thunderstorm warning went out at Oct 29, 9:20 AM PDT, 3 hours 56 minutes earlier.
Area forecast discussion, Oct 29, 9:20 AM PDT, 3 hours 56 minutes before
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</html>Hazardous weather outlook, Oct 29, 5:37 AM PDT, 7 hours 39 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE SAN JOAQUIN VALLEY - HANFORD CA 537 AM PDT MON OCT 29 2007 CAZ089>095-098-099-301245- WEST CENTRAL SAN JOAQUIN VALLEY-EAST CENTRAL SAN JOAQUIN VALLEY- SOUTHWESTERN SAN JOAQUIN VALLEY-SOUTHEASTERN SAN JOAQUIN VALLEY- MARIPOSA MADERA AND FRESNO COUNTY FOOTHILLS- TULARE COUNTY FOOTHILLS-KERN COUNTY MOUNTAINS-INDIAN WELLS VALLEY- SOUTHEASTERN KERN COUNTY DESERT- 537 AM PDT MON OCT 29 2007 THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE CENTRAL CALIFORNIA INTERIOR .DAY ONE...TODAY AND TONIGHT A FEW THUNDERSTORMS WILL DEVELOP ACROSS THE SAN JOAQUIN VALLEY... THE ADJACENT SOUTHERN SIERRA NEVADA FOOTHILLS...AS WELL AS THE KERN COUNTY MOUNTAINS AND DESERTS THIS AFTERNOON AND EVENING. DANGEROUS CLOUD TO GROUND LIGHTNING...SMALL HAIL AND LOCALLY GUSTY WINDS ARE POSSIBLE WITH THE THUNDERSTORMS. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY NO HAZARDOUS WEATHER IS EXPECTED. .SPOTTER INFORMATION STATEMENT... WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS TO THE SAN JOAQUIN VALLEY NATIONAL WEATHER SERVICE OFFICE. BINGHAM WEATHER.GOV/HANFORD
The office that day
Everything else NWS Hanford, CA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 29, 4:00 PM PDT | Severe Thunderstorm Warning | HNX | Fresno | 30 min |
| Oct 29, 4:28 PM PDT | Severe Thunderstorm Warning | HNX | Fresno | 47 min |
| Oct 29, 4:43 PM PDT | Severe Thunderstorm Warning | HNX | Kern | 47 min |
Nearby
Severe Thunderstorm Warnings in California, 2007Every severe thunderstorm warning in 2007
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.