Alert archive / California / Severe Thunderstorm Warnings in 2000
Severe Thunderstorm Warning 8, NWS Hanford, CA
NWS Hanford, CA issued this severe thunderstorm warning at Apr 13, 2000, 3:52 PM PDT for Madera County, California. It was in force for 43 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
- Apr 13, 2000, 3:52 PM PDT (22:52 UTC)
- Expired
- Apr 13, 2000, 4:35 PM PDT
- In force
- 43 min
- Issued by
- NWS Hanford, CA
- Area
- Whole counties
County Madera County, CA
The radar
The San Joaquin Valley radar (KHNX), 101 km from the middle of the area, began a volume at 22:53 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, 10.9 hours before the alert went out and 222 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
- 51 J/kg
- Mixed-layer CIN
- -5 J/kg
- Mixed-layer LCL
- 769 m above ground
- 0-6 km bulk shear
- 58 kt
- 0-1 km storm-relative helicity
- 79 m²/s²
- 0-3 km storm-relative helicity
- 117 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.5
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS56 KHNX 132253 SVRFAT CAC039-132335- BULLETIN-EAS ACTIVATION REQUIRED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE HANFORD CA 352 PM PDT THU APR 13 2000 THE NATIONAL WEATHER SERVICE IN HANFORD HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... CENTRAL MADERA COUNTY IN CENTRAL CALIFORNIA * UNTIL 435 PM PDT * AT 347 PM PDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 14 MILES EAST OF MADERA... MOVING NORTHEAST AT 15 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... MILLERTON LAKE BY 415 PM PDT LARGE HAIL AND DAMAGING WINDS ARE POSSIBLE WITH THIS STORM. STAY INDOORS AWAY FROM WINDOWS. TAL
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 Apr 13, 3:45 PM PDT, 7 minutes earlier.
Area forecast discussion, Apr 13, 3:45 PM PDT, 7 minutes before
INTERIOR CENTRAL CALIFORNIA FORECAST DISCUSSION NATIONAL WEATHER SERVICE SAN JOAQUIN VALLEY - HANFORD CA 345 PM PDT THU APR 13 2000 AS A RESULT OF CLEARING AND AMPLE INSOLATION OVER WEST-CENTRAL SAN JOAQUIN VALLEY THE AIRMASS HAS DESTABILIZED WITH SCATTERED TSTM DEVELOPMENT FROM FRESNO COUNTY NORTH. PRIMARY FOCUS IN THE VERY NEAR-TERM WILL BE THE PROGRESS OF THE STRONGER CELLS...JUST ISSUED SVR FOR CELL PULSING STRONGER WITH HAIL NW OF FRESNO. WILL CONTINUE TO MONITOR. STRONGER ACTIVITY SHOULD DECREASE EARLY THIS EVENING. OTHERWISE BROAD TROUGH OFFSHORE WILL OPEN UP FURTHER AND MOVE INLAND TONIGHT/FRI. MODELS ARE IN DECENT AGREEMENT...ETA A BIT SLOWER IN TROUGH PASSAGE AND AVN SOLUTION PREFERRED. VORT AXIS DIGGING SE TONIGHT WILL REACH NEAR POINT CONCEPTION INTO SOCAL FRI...HELPING TO PUSH THE MAIN TROUGH AXIS WITH IT. WITH INCREASED MSTR ALREADY PRESENT OVER THE DISTRICT AND WEAK TO MODERATE LIFT ASSOCIATED WITH TROUGH PASSAGE EARLY FRI MORN...WILL GO WITH LIKELY POPS N AND SCATTERED POPS FOR S. STRONGEST FORCING PROGGED NEAR CNTRL CST. OUR BEST PRECIP CHANCES NEAR 12-16Z WINDOW BUT LOW ON QPF. BASED ON LATEST MTN REPORTS INTRODUCED A MENTION OF SNOW ACCUMULATIONS FOR HIER ELEVATIONS OF SOUTHERN SIERRA NEVADA TONIGHT/FRI MORN. THE AMOUNTS WILL BE VARIABLE WITH SHOWER ACTIVITY. INCREASINGLY WINDY CONDITIONS ANTICIPATED FOR KERN COUNTY MTN PASSES AND KERN DESERTS THRU FRIDAY...WITH A POSSIBILITY FOR ADVISORY LEVEL SPEEDS OCCURRING AND LOCALLY STRONG GUSTS BELOW PASSES/NEAR MOJAVE. AT THIS TIME WILL KEEP JUST BELOW ADVIS CRITERIA AND ALLOW NEXT SHIFTS TO EXAMINE CLOSELY WITH 00Z DATA. PROGS SHOW HIGH AMOUNTS OF LINGERING LLVL MSTR IN THE WAKE OF THIS SYSTEM FRI NIGHT/SAT...SO USUAL LINGERING STRATIFORM CLOUDS WILL LIKELY TO PERSIST IN PORTIONS OF THE FOOTHILLS AND SJ VLLY...WITH CLOUDS SLOW TO CLEAR UNTIL MIDDAY SAT. A DRY PERIOD IS EXPECTED FOR SECOND PART OF FRI AND ALL OF SAT WITH TRANSITORY SHORT WAVE RIDGING. FOR THE EXTENDED...MED RANGE MODELS STILL VARYING CONSIDERABLY ON THE NEXT STRONG SYSTEM DIGGING OFF THE COAST SUN. LIKE MRF SOLUTION WITH DEPTH/TIMING WHICH WILL INDICATE OUR BEST CHANCE OF RAFL BY LATE SUN NIGHT AND DURING MON. TROUGH AXIS MAY BE PAST TUE MORN WITH IMPROVING CONDS IF MRF VERIFIES...HOWEVER FOR NOW BROADBRUSHED FOR MON/TUE TOGETHER AND CAN BE FINE-TUNED AS WE GET CLOSER. .HNX...NONE. FAT WB 054/068 052/072 050 95560 BFL EB 053/068 052/072 051 95440 YNP WB 040/054 038/061 040 95560 LAVIS
The office that day
Everything else NWS Hanford, CA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 13, 3:18 PM PDT | Severe Thunderstorm Warning | HNX | Fresno, Madera | 47 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.