Alert archive / California / Severe Thunderstorm Warnings in 2005
Severe Thunderstorm Warning 5, NWS Hanford, CA
NWS Hanford, CA issued this severe thunderstorm warning at Feb 21, 2005, 3:56 PM PST for 6 counties in California. It was in force for 49 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
- Feb 21, 2005, 3:56 PM PST (23:56 UTC)
- Expired
- Feb 21, 2005, 4:45 PM PST
- In force
- 49 min
- Issued by
- NWS Hanford, CA
- Area
- Counties, with a storm outline in the text
Counties Fresno County, CA, Kings County, CA, Madera County, CA, Mariposa County, CA, Merced County, CA, Tulare County, CA
The radar
The San Joaquin Valley radar (KHNX), 60 km from the middle of the area, began a volume at 23:59 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Feb 21, 3:30 PM PST | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Oakland, CA (KOAK), launched 12:00Z, 11.9 hours before the alert went out and 236 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
- 892 m above ground
- 0-6 km bulk shear
- 34 kt
- 0-1 km storm-relative helicity
- 199 m²/s²
- 0-3 km storm-relative helicity
- 235 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 Feb 21, 3:35 PM PST, 21 minutes earlier.
Area forecast discussion, Feb 21, 3:35 PM PST, 21 minutes before
AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE SAN JOAQUIN VALLEY - HANFORD CA
335 PM PST MON FEB 21 2005
UPDATED FOR SEVERE THUNDERSTORM WATCH
.SHORT TERM...FOR THE CENTRAL CALIFORNIA INTERIOR...THE UPPER-LEVEL
EAST-PACIFIC LOW CONTINUES TO DRAW MOISTURE INTO THE CENTRAL
CALIFORNIA INTERIOR FROM THE SOUTH. THE CONVECTIVE POTENTIAL FOR THE
CENTRAL CALIFORNIA INTERIOR THIS AFTERNOON WAS HIGH. THE 12Z WS-ETA
HAD CAPES OF 800+ JOULES/KG OVER MERCED AND MADERA COUNTIES AT 00Z
TUESDAY...WITH LIFTED INDEXES OF -5 TO -5 AND 500-MB TEMPERATURES OF
-24 C. BREAKS DEVELOPED IN THE CLOUD COVER OVER THE SOUTHERN SAN
JOAQUIN VALLEY FOR GOOD SOLAR HEATING...AND STRONG THUNDERSTORMS
DEVELOPED OVER THE WEST SIDE OF VALLEY WITH A FEW REACHING SEVERE
LEVELS.
THE MAJORITY OF 12/18Z MODELS FORECAST THE LOW TO DROP SOUTHWARD
TONIGHT BEFORE TURNING INLAND OVER EXTREME SOUTHERN CALIFORNIA
TUESDAY AFTERNOON...THEN MOVE INTO WESTERN ARIZONA BY WEDNESDAY
AFTERNOON. HOWEVER...THE NEW 12Z ECMWF HAS A MORE NORTHERLY TRACK
FOR THE LOW AS IT MOVES INLAND...OVER THE SOUTHERN HALF OF THE
HANFORD WARNING/FORECAST AREA. THIS WILL KEEP UNSETTLED WEATHER OVER
THE REGION THROUGH WEDNESDAY. DRY WEATHER WILL RETURN TO THE SAN
JOAQUIN VALLEY THURSDAY...WITH PATCHY NIGHT AND MORNING FOG POSSIBLE.
.LONG TERM...FOR THURSDAY NIGHT THROUGH MONDAY...AS WITH PREVIOUS
THINKING...MODELS CONTINUE WITH A REX BLOCK OVER THE GREAT BASIN AT
THE START OF THE PERIOD...WRAP AROUND MOISTURE WILL KEEP THREAT OF
MOUNTAIN AND DESERT SHOWERS THROUGH THURSDAY NIGHT WITH DRYING
ELSEWHERE. WEAK RIDGING EXPECTED OVER THE WEST COAST AT THE END OF
THE WEEK ALONG WITH INCREASING POTENTIAL FOR EARLY MORNING VALLEY
FOG. BY THE WEEKEND...MODELS SHOW SPLIT FLOW PATTERN ALONG THE WEST
COAST...WITH DEEPEST MOISTURE AND STRONGEST DYNAMICS EXPECTED TO
REMAIN NORTH OF THE HNX FCST AREA. EXPECT NEAR NORMAL TEMPERATURES
THROUGH THE PERIOD.
&&
.HNX WATCHES/WARNINGS/ADVISORIES...SEVERE THUNDERSTORM WATCH FOR
CENTRAL CALIFORNIA UNTIL 10 PM TONIGHT.
...HEAVY SNOW WARNING ABOVE 6000 FEET FOR THE SOUTHERN SIERRA
NORTH OF KERN COUNTY UNTIL MIDNIGHT TONIGHT.
...WINTER STORM WARNING ABOVE 6000 FEET FOR THE KERN COUNTY
MOUNTAINS UNTIL MIDNIGHT TONIGHT.
...URBAN AND SMALL STREAM FLOOD ADVISORY FOR THE KERN COUNTY
MOUNTAINS BELOW 6000 FEET AND THE KERN COUNTY DESERTS UNTIL 6
AM TUESDAY MORNING.
...FLOOD WATCH FOR THE KERN COUNTY MOUNTAINS BELOW 6000 FEET AND
THE KERN COUNTY DESERTS UNTIL MIDNIGHT TONIGHT.
&&
SANGER/BENTZIEN
WEATHER.GOV/HANFORD /ALL LOWER CASE/Hazardous weather outlook, Feb 21, 3:40 PM PST, 16 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE SAN JOAQUIN VALLEY - HANFORD CA 340 PM PST MON FEB 21 2005 UPDATED FOR SEVERE THUNDERSTORM WATCH CAZ098-099-221300- INDIAN WELLS VALLEY-SOUTHEASTERN KERN COUNTY DESERT- 1230 PM PST MON FEB 21 2005 THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE INDIAN WELLS VALLEY... AND THE SOUTHEASTERN KERN COUNTY DESERT. .DAY ONE...TODAY A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 10 PM TONIGHT. PLEASE REFER TO SEVERE THUNDERSTORM WATCH NUMBER 27 /WWUS20 KWNS/. AN URBAN AND SMALL STREAM FLOOD ADVISORY IS IN EFFECT UNTIL 6 AM TUESDAY MORNING. PLEASE REFER TO THE LATEST FLOOD STATEMENT MESSAGE /WGUS86 KHNX/ FOR FURTHER DETAILS. A FLOOD WATCH REMAINS IN EFFECT UNTIL MIDNIGHT PST TONIGHT. PLEASE REFER TO THE LATEST FLOOD WATCH MESSAGE /WGUS66 KHNX/ FOR FURTHER DETAILS. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY THE URBAN AND SMALL STREAM FLOOD ADVISORY IS EXPECTED TO EXPIRE AT 6 AM TUESDAY OTHERWISE NO HAZARDOUS WEATHER IS EXPECTED FOR THE REMAINDER OF THE PERIOD. .SPOTTER INFORMATION STATEMENT... WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS TO THEIR LOCAL NATIONAL WEATHER SERVICE OFFICE. CAZ096-097-221300- SIERRA NEVADA FROM YOSEMITE TO KINGS CANYON-TULARE COUNTY MOUNTAINS- 1230 PM PST MON FEB 21 2005 THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE SOUTHERN SIERRA NEVADA FROM YOSEMITE TO KINGS CANYON. .DAY ONE...TODAY A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 10 PM TONIGHT. PLEASE REFER TO SEVERE THUNDERSTORM WATCH NUMBER 27 /WWUS20 KWNS/. A HEAVY SNOW WARNING IS IN EFFECT THROUGH MIDNIGHT. PLEASE REFER TO THE LATEST WINTER WEATHER MESSAGE /WWUS46 KHNX/ FOR FURTHER DETAILS. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS TO THEIR LOCAL NATIONAL WEATHER SERVICE OFFICE. CAZ095-221300- KERN COUNTY MOUNTAINS- 1230 PM PST MON FEB 21 2005 THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE KERN COUNTY MOUNTAINS. .DAY ONE...TODAY A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 10 PM TONIGHT. PLEASE REFER TO SEVERE THUNDERSTORM WATCH NUMBER 27 /WWUS20 KWNS/. A WINTER STORM WARNING REMAINS IN EFFECT FOR THE KERN COUNTY MOUNTAINS ABOVE 6000 FEET UNTIL MIDNIGHT TONIGHT. PLEASE REFER TO THE LATEST WINTER WEATHER MESSAGE /WWUS46 KHNX/ FOR FURTHER DETAILS. AN URBAN AND SMALL STREAM FLOOD ADVISORY IS IN EFFECT UNTIL 6 AM TUESDAY BELOW 6000 FEET. PLEASE REFER TO THE LATEST FLOOD STATEMENT MESSAGE /WGUS86 KHNX/ FOR FURTHER DETAILS. A FLOOD WATCH REMAINS IN EFFECT UNTIL MIDNIGHT PST TONIGHT BELOW 6000 FEET. PLEASE REFER TO THE LATEST FLOOD WATCH MESSAGE /WGUS66 KHNX/ FOR FURTHER DETAILS. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY THE URBAN AND SMALL STREAM FLOOD ADVISORY IS EXPECTED TO EXPIRE AT 6 AM TUESDAY OTHERWISE NO HAZARDOUS WEATHER IS EXPECTED FOR THE REMAINDER OF THE PERIOD. .SPOTTER INFORMATION STATEMENT... WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS TO THEIR LOCAL NATIONAL WEATHER SERVICE OFFICE. CAZ089>094-221300- 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- 1230 PM PST MON FEB 21 2005 THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE CENTRAL AND SOUTHERN SAN JOAQUIN VALLEY...AND THE SOUTHERN SIERRA NEVADA FOOTHILLS. .DAY ONE...TODAY A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 10 PM TONIGHT. PLEASE REFER TO SEVERE THUNDERSTORM WATCH NUMBER 27 /WWUS20 KWNS/. THERE IS A CHANCE FOR ISOLATED THUNDERSTORMS. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY THERE IS A CHANCE FOR THUNDERSTORMS TUESDAY THROUGH WEDNESDAY EVENING. FOR THE REMAINDER OF THE PERIOD... NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS TO THEIR LOCAL NATIONAL WEATHER SERVICE OFFICE. SANGER/PJ
The office that day
Everything else NWS Hanford, CA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 21, 1:50 PM PST | Flash Flood Warning | HNX | Fresno, Kern, Kings | 3 hr |
| Feb 21, 2:13 PM PST | Severe Thunderstorm Warning | HNX | Fresno, Madera | 32 min |
| Feb 21, 2:45 PM PST | Severe Thunderstorm Warning | HNX | Madera | 30 min |
| Feb 21, 3:13 PM PST | Severe Thunderstorm Warning | HNX | Fresno, Madera, Merced | 47 min |
Nearby
Severe Thunderstorm Warnings in California, 2005Every severe thunderstorm warning in 2005
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.