Alert archive / Texas / Severe Thunderstorm Warnings in 2009
Severe Thunderstorm Warning 81, NWS Lubbock, TX
NWS Lubbock, TX issued this severe thunderstorm warning at May 1, 2009, 7:36 PM CDT for Kent County, Stonewall County, Texas. It was in force for 24 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
- May 1, 2009, 7:36 PM CDT (00:36 UTC)
- Expired
- May 1, 2009, 8:00 PM CDT
- In force
- 24 min
- Issued by
- NWS Lubbock, TX
- Area
- Storm-based polygon
Counties Kent County, TX, Stonewall County, TX
The radar
The Lubbock radar (KLBB), 132 km from the middle of the area, began a volume at 00:37 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 |
|---|---|---|---|
| May 1, 3:09 PM CDT | Tornado Watch | SPC | 7 hr |
The nearest sounding before it
Fort Worth, TX (KFWD), launched 00:00Z, 0.6 hours before the alert went out and 303 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
- 3417 J/kg
- Mixed-layer CIN
- -2 J/kg
- Mixed-layer LCL
- 667 m above ground
- 0-6 km bulk shear
- 30 kt
- 0-1 km storm-relative helicity
- 105 m²/s²
- 0-3 km storm-relative helicity
- 145 m²/s²
- Significant tornado parameter
- 1.5
- Supercell composite
- 7.4
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 Lubbock, TX wrote its last area forecast discussion before this severe thunderstorm warning went out at May 1, 6:54 PM CDT, 42 minutes earlier.
Area forecast discussion, May 1, 6:54 PM CDT, 42 minutes before
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</html>Hazardous weather outlook, May 1, 11:40 AM CDT, 7 hours 56 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE LUBBOCK TX 1140 AM CDT FRI MAY 1 2009 TXZ021>044-021645- PARMER-CASTRO-SWISHER-BRISCOE-HALL-CHILDRESS-BAILEY-LAMB-HALE- FLOYD-MOTLEY-COTTLE-COCHRAN-HOCKLEY-LUBBOCK-CROSBY-DICKENS-KING- YOAKUM-TERRY-LYNN-GARZA-KENT-STONEWALL- 1140 AM CDT FRI MAY 1 2009 THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE EXTREME SOUTHERN TEXAS PANHANDLE...SOUTH PLAINS AND ROLLING PLAINS. .DAY ONE...THIS AFTERNOON AND TONIGHT CONVECTIVE THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS THIS AFTERNOON AND EVENING GENERALLY EAST OF LINE FROM TURKEY TO DICKENS TO CLAIREMONT. A COLD FRONT WILL MOVE SOUTHWARD INTO THE SOUTHEAST PANHANDLE LATE THIS MORNING AND THEN CONTINUE TO ADVANCE SOUTHWARD INTO THE SOUTH PLAINS AND ROLLING PLAINS THIS AFTERNOON...BEFORE MOVING SOUTH OF THE OUTLOOK AREA THIS EVENING. ALSO...THE DRYLINE IS EXPECTED TO SETUP IN THE WESTERN ROLLING PLAINS THIS AFTERNOON. SCATTERED THUNDERSTORMS ARE EXPECTED TO DEVELOP NEAR THE COLD FRONT AND DRYLINE INTERSECTION BY THE MID-AFTERNOON AND THEN SPREAD SOUTHEASTWARD WITH TIME. GIVEN STRONG INSTABILITY AND SUFFICIENT DEEP LAYER WIND SHEAR IN ADVANCE OF THE COLD FRONT AND EAST OF THE DRYLINE ANY STORMS THAT DEVELOP WILL HAVE THE POTENTIAL TO QUICKLY BECOME SEVERE. THE GREATEST THREATS WITH THE THUNDERSTORMS WILL BE VERY LARGE HAIL AND DAMAGING WINDS. HOWEVER...ALTHOUGH THE LOW LEVEL WIND FIELDS WILL BE RATHER WEAK THE STRONG INSTABILITY WILL SUPPORT AN ISOLATED TORNADO THREAT. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY THE COLD FRONT WILL MOVE FURTHER SOUTH INTO THE SOUTHERN ROLLING PLAINS SATURDAY AFTERNOON WITH THE POSSIBILITY FOR STRONG TO SEVERE THUNDERSTORMS TO DEVELOP ALONG IT. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE REQUIRED THIS AFTERNOON AND EVENING.
In the hours before
Special weather statement, May 1, 3:39 PM CDT, 3 hours 57 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE LUBBOCK TX 339 PM CDT FRI MAY 1 2009 TXZ038-044-012115- KING TX-STONEWALL TX- 339 PM CDT FRI MAY 1 2009 ...STRONG THUNDERSTORM ACROSS STONEWALL AND KING COUNTIES... AT 337 PM CDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A STRONG THUNDERSTORM OVER KING COUNTY...OR ABOUT 22 MILES SOUTHEAST OF GUTHRIE...MOVING EAST AT 5 MPH. SMALL HAIL AND BRIEF...STRONG WIND GUSTS ARE POSSIBLE NEAR THUNDERSTORMS. MOVE TO A PLACE OF SAFETY IF THREATENING WEATHER APPROACHES. STAY AWAY FROM WINDOWS. STORM INTENSITY IS INCREASING AND SEVERE WEATHER MAY DEVELOP RAPIDLY. BE PREPARED TO TAKE ACTION IF A WARNING IS ISSUED.
Special weather statement, May 1, 4:27 PM CDT, 3 hours 9 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE LUBBOCK TX 427 PM CDT FRI MAY 1 2009 TXZ044-012145- STONEWALL TX- 427 PM CDT FRI MAY 1 2009 ...STRONG THUNDERSTORM ACROSS EXTREME EASTERN STONEWALL COUNTY INTO MUCH OF NORTHWEST HASKELL COUNTY... AT 421 PM CDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THE WESTERN FRINGE OF A STRONG THUNDERSTORM 13 MILES NORTH OF OLD GLORY...OR ABOUT 29 MILES SOUTHEAST OF GUTHRIE...MOVING SOUTHEAST AT 5 MPH. SMALL HAIL AND BRIEF...STRONG WIND GUSTS ARE POSSIBLE NEAR THE WESTERN FRINGE OF THIS THUNDERSTORM OVER EASTERN STONEWALL COUNTY. ALSO...THE STRONGEST PORTION OF THE STORM...WHICH HAS BEEN TORNADIC ...IS LOCATED JUST TO THE EAST IN NORTHWESTERN HASKELL COUNTY. THIS THUNDERSTORM MAY MAY BUILD WESTWARD WITH TIME INTO EASTERN STONEWALL COUNTY. MOVE TO A PLACE OF SAFETY IF THREATENING WEATHER APPROACHES. STAY AWAY FROM WINDOWS. PERSONS IN THE PATH OF THESE STORMS SHOULD CLOSELY MONITOR WEATHER RADIO OR OTHER MEDIA FOR OTHER UPDATES AND POSSIBLE WARNINGS. BE PREPARED TO TAKE ACTION IF A WARNING IS ISSUED.
Special weather statement, May 1, 4:33 PM CDT, 3 hours 3 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE LUBBOCK TX 433 PM CDT FRI MAY 1 2009 TXZ038-044-012200- KING TX-STONEWALL TX- 433 PM CDT FRI MAY 1 2009 ...STRONG THUNDERSTORM ACROSS STONEWALL AND KING COUNTIES... AT 431 PM CDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A STRONG THUNDERSTORM OVER RURAL PORTIONS OF EASTERN KING COUNTY...OR ABOUT 15 MILES EAST OF GUTHRIE...MOVING SOUTHEAST AT 10 MPH. THIS STORM WILL AFFECT MOTORISTS TRAVELING ALONG HIGHWAY 82. SMALL HAIL AND BRIEF...STRONG WIND GUSTS ARE POSSIBLE NEAR THIS THUNDERSTORM. MOVE TO A PLACE OF SAFETY IF THREATENING WEATHER APPROACHES. STAY AWAY FROM WINDOWS. STORM INTENSITY IS INCREASING AND SEVERE WEATHER MAY DEVELOP RAPIDLY. BE PREPARED TO TAKE ACTION IF A WARNING IS ISSUED.
Local storm report, May 1, 4:55 PM CDT, 2 hours 41 minutes before
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</html>Nearby
Severe Thunderstorm Warnings in Texas, 2009Every severe thunderstorm warning in 2009
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.