Alert archive / California / Severe Thunderstorm Warnings in 2000
Severe Thunderstorm Warning 20, NWS Hanford, CA
NWS Hanford, CA issued this severe thunderstorm warning at Oct 10, 2000, 4:42 PM PDT for Kings County, California. It was in force for 48 min. 1 report came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Oct 10, 2000, 4:42 PM PDT (23:42 UTC)
- Expired
- Oct 10, 2000, 5:30 PM PDT
- In force
- 48 min
- Issued by
- NWS Hanford, CA
- Area
- Whole counties
County Kings County, CA
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Oct 10, 4:50 PM PDT | Hail 1 | Avenal, CA |
NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.
The nearest sounding before it
Vandenberg AFB, CA (KVBG), launched 12:00Z, 11.7 hours before the alert went out and 162 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
- 727 m above ground
- 0-6 km bulk shear
- 57 kt
- 0-1 km storm-relative helicity
- 9 m²/s²
- 0-3 km storm-relative helicity
- 77 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS56 KHNX 102345 SVRFAT CAC031-110030- BULLETIN-EAS ACTIVATION REQUIRED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE HANFORD CA 442 PM PDT TUE OCT 10 2000 THE NATIONAL WEATHER SERVICE IN HANFORD HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... SOUTHWESTERN KINGS COUNTY IN CENTRAL CALIFORNIA * UNTIL 530 PM PDT * AT 440 PM PDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 8 MILES NORTH OF AVENAL.... MOVING SOUTHEAST AT 15 MPH.. * THE SEVERE THUNDERSTORM WILL BE NEAR... INTERSTATE 5 AT AVENAL CUTOFF ROAD AT 450 PM PDT. KETTLEMAN CITY AT 505 PM PDT. THIS STORM HAS A HISTORY OF LARGE HAIL. GO INSIDE A STURDY BUILDING AND STAY AWAY FROM WINDOWS! DS/TL/ML N
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 10, 2:50 PM PDT, 1 hour 52 minutes earlier.
Area forecast discussion, Oct 10, 2:50 PM PDT, 1 hour 52 minutes before
INTERIOR CENTRAL CALIFORNIA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN JOAQUIN VALLEY - HANFORD CA
250 PM PDT TUE OCT 10 2000
UPPER LOW WAS LOCATED CLOSE TO THE CA/NV BORDER THIS AFTERNOON WITH
JET AXIS OVER THE SOUTHERN BOUNDARY OF THE CWA. SHORTWAVE OFFSHORE
APPROACHING MRY WAS MOVING SE AROUND 30KTS AND COMBINING WITH
CONSIDERABLE INSTABILITY TO MAINTAIN SHOWERS AND THUNDERSTORMS OVER
THE DISTRICT.
PROGS ARE IN DECENT AGREEMENT SHOWING WAVE TRACKING SE ALONG THE
COAST DURING THE NEXT 12 HOURS FORCING JET AXIS FURTHER SOUTH OVER
SOCAL. ALTHOUGH ANOTHER WAVE WILL ROTATE SOUTH ACROSS THE DISTRICT
LATE TONIGHT/WED WITH AMPLE LOW-MID LEVEL MOISTURE...DYNAMICS ARE
RATHER UNIMPRESSIVE. NEVERTHELESS...SW FLOW WILL CONT TO ENHANCE
OROGRAPHICS ACROSS THE SIERRA THROUGH 03Z AND WILL CONT WINTER STORM
WARNINGS THROUGH 2100 PDT. HEAVIER PRECIP WILL TAPER OFF LATE
TONIGHT AS SW FLOW AND OROGRAPHICS WEAKEN. THE CHANCE OF PRECIP OVER
THE KERN COUNTY MTNS REACHING ADVISORY CRITERIA TONIGHT HAS
DIMINISHED...HWVR...AND ADVISORY WILL ALSO BE ALLOWED TO EXPIRE WITH
AFTN PACKAGE. SINCE CONTD RAINFALL THROUGH THE EVE HOURS MAY RESULT
IN AREAS OF FLOODING IN THE CENTRAL/SOUTH VALLEY AND SIERRA
FOOTHILLS...WILL CONT URBAN AND SMALL STREAM FLOOD ADVISORIES
THROUGH 2100 PDT.
OTHER SHORT-TERM CONCERN RELATES TO CONVECTIVE POTENTIAL THIS EVE.
KHNX VWP SHOWS CONTINUED LOW LEVEL SHEAR THIS AFTERNOON WITH PROGGED
SOUNDINGS INDICATING DECENT BUOYANCY WITH CAPE AROUND 600 J/KG.
SINCE IR PICS SHOW SOME BREAKS OVER THE CWA...WILL NEED TO CONT
MONITORING POTENTIAL FOR STRONGER STORM DEVELOPMENT THIS EVE.
DESPITE RATHER WEAK FORCING WITH WAVE ON WED...FLOW ALOFT REMAINS
CYCLONIC AND PROXIMITY OF COLD POOL ALOFT WILL BE SUFFICIENT TO CONT
THREAT OF SCTD SHOWERS ACROSS THE REGION. STRONG JET MAX SHIFTS TO
THE SE QUAD OF UPPER LOW LATE WED/THURS AND SHOULD AID IN LIFTING
SYSTEM TO THE ENE. DEPARTURE WILL ALLOW A DRIER FLOW TO BECOME
ESTABLISHED ALOFT WITH DECREASING SHOWERS OVER THE SIERRA. EASTWARD
SHIFT IN UPPER COLD POOL WILL ALSO ALLOW SNOW LEVELS TO EDGE UPWARD
BY THURSDAY.
MEDIUM RANGE MODELS SHOW SHORTWAVE RIDGE BUILDING ONSHORE FRI-SUN
WITH WARMER AND DRIER CONDITIONS OVERSPREADING THE FA.
FAT 8330 BFL 8330 YNP +662
.HNX...WINTER STORM WARNING FOR THE SOUTHERN SIERRA NEVADA ABOVE
5000 FEET FROM YOSEMITE PARK TO THE KERN COUNTY LINE THROUGH
900 PM TONIGHT.
...URBAN AND SMALL STREAM FLOOD ADVISORY FOR THE EAST SIDE OF
THE CENTRAL AND SOUTHERN SAN JOAQUIN VALLEY AND THE ADJACENT
SIERRA NEVADA FOOTHILLS.
FAT BU 052/066 048/069 046 88833
BFL BU 052/066 048/068 047 88833
YNP WB 039/048 035/054 035 88+66
JSNThe office that day
Everything else NWS Hanford, CA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 9, 10:40 PM PDT | Severe Thunderstorm Warning | HNX | Fresno | 30 min |
| Oct 10, 4:06 PM PDT | Severe Thunderstorm Warning | HNX | Fresno | 34 min |
Nearby
Severe Thunderstorm Warnings in California, 2000Every severe thunderstorm warning in 2000
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.