Alert archive / Texas / Severe Thunderstorm Warnings in 2009
Severe Thunderstorm Warning 101, NWS Lubbock, TX
NWS Lubbock, TX issued this severe thunderstorm warning at May 15, 2009, 6:35 PM CDT for Childress County, Hall County, Texas. It was in force for 55 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 15, 2009, 6:35 PM CDT (23:35 UTC)
- Expired
- May 15, 2009, 7:30 PM CDT
- In force
- 55 min
- Issued by
- NWS Lubbock, TX
- Area
- Storm-based polygon
Counties Childress County, TX, Hall County, TX
The radar
The Altus AFB radar (KFDR), 136 km from the middle of the area, began a volume at 23:35 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
Amarillo Airport, TX (KAMA), launched 12:00Z, 11.6 hours before the alert went out and 138 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
- 2717 J/kg
- Mixed-layer CIN
- -204 J/kg
- Mixed-layer LCL
- 1202 m above ground
- 0-6 km bulk shear
- 14 kt
- 0-1 km storm-relative helicity
- 192 m²/s²
- 0-3 km storm-relative helicity
- 326 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 2.3
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 15, 6:33 PM CDT, 2 minutes earlier.
Area forecast discussion, May 15, 6:33 PM CDT, 2 minutes before
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</html>Hazardous weather outlook, May 15, 1:57 PM CDT, 4 hours 38 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE LUBBOCK TX 157 PM CDT FRI MAY 15 2009 TXZ021>044-161900- PARMER-CASTRO-SWISHER-BRISCOE-HALL-CHILDRESS-BAILEY-LAMB-HALE- FLOYD-MOTLEY-COTTLE-COCHRAN-HOCKLEY-LUBBOCK-CROSBY-DICKENS-KING- YOAKUM-TERRY-LYNN-GARZA-KENT-STONEWALL- 157 PM CDT FRI MAY 15 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 FORMING ALONG THE DRYLINE ACROSS THE SOUTH PLAINS LATER THIS AFTERNOON AND EVENING. LARGE HAIL AND DAMAGING WINDS WILL BE THE PRIMARY THREATS AS STRONG INSTABILITY IS EXPECTED. STORMS WILL INITIATE ACROSS THE WESTERN AND CENTRAL SOUTH PLAINS...MOVING EAST TOWARDS THE ROLLING PLAINS. FIRE WEATHER THUNDERSTORMS DEVELOPING WITHIN A VERY DRY AIRMASS OVER THE WESTERN SOUTH PLAINS WILL PRESENT A THREAT OF DRY LIGHTNING WHICH MAY IGNITE WILDFIRES THIS AFTERNOON AND EARLY THIS EVENING. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY A THREAT FOR SEVERE STORMS WILL PERSIST THROUGH MIDDAY SATURDAY IN THE WAKE OF A PASSING COLD FRONT. THE PRIMARY THREAT FROM THESE STORMS WILL BE HAIL UP TO ONE INCH IN DIAMETER. THESE STORMS MAY ADDITIONALLY PRODUCE LOCALLY HEAVY RAINFALL WHICH COULD RESULT IN LOCALIZED FLOODING...ESPECIALLY OVER THE EXTREME SOUTHEASTERN PANHANDLE AND THE ROLLING PLAINS. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE REQUIRED LATER THIS AFTERNOON.
In the hours before
Special weather statement, May 15, 3:58 PM CDT, 2 hours 37 minutes before
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SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE LUBBOCK TX 412 PM CDT FRI MAY 15 2009 TXZ024-025-030-031-152145- BRISCOE TX-HALL TX-MOTLEY TX-FLOYD TX- 412 PM CDT FRI MAY 15 2009 ...STRONG THUNDERSTORM ACROSS FLOYD...MOTLEY...HALL AND BRISCOE COUNTIES... AT 410 PM CDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A BROKEN LINE OF STRONG THUNDERSTORM FROM NEAR BRICE SOUTHWEST TO NEAR QUITAQUE...MOVING EAST AT 20 MPH. STORM INTENSITY IS INCREASING AND SEVERE WEATHER MAY DEVELOP RAPIDLY. BE PREPARED TO TAKE ACTION IF A WARNING IS ISSUED. LAT...LON 3475 10069 3428 10085 3428 10126 3475 10110 TIME...MOT...LOC 2111Z 250DEG 16KT 3441 10109
Local storm report, May 15, 4:47 PM CDT, 1 hour 48 minutes before
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</html>Special weather statement, May 15, 4:49 PM CDT, 1 hour 46 minutes before
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</html>Special weather statement, May 15, 5:01 PM CDT, 1 hour 34 minutes before
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</html>Special weather statement, May 15, 6:31 PM CDT, 4 minutes before
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</html>The office that day
Everything else NWS Lubbock, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 15, 2:32 PM CDT | Severe Thunderstorm Warning | LUB | Hockley, Terry | 28 min |
| May 15, 2:36 PM CDT | Fire Weather Watch | LUB | Bailey, Cochran, Hockley, Lamb, Terry, Yoakum | 3 hr |
| May 15, 2:57 PM CDT | Severe Thunderstorm Warning | LUB | Cochran, Hockley, Terry, Yoakum | 33 min |
| May 15, 3:33 PM CDT | Severe Thunderstorm Warning | LUB | Cochran, Hockley, Terry, Yoakum | 22 min |
| May 15, 4:37 PM CDT | Severe Thunderstorm Warning | LUB | Hall | 38 min |
| May 15, 4:48 PM CDT | Severe Thunderstorm Warning | LUB | Briscoe | 42 min |
| May 15, 5:09 PM CDT | Severe Thunderstorm Warning | LUB | Briscoe, Hall | 66 min |
| May 15, 6:10 PM CDT | Severe Thunderstorm Warning | LUB | Briscoe, Hall | 48 min |
| May 15, 6:45 PM CDT | Severe Thunderstorm Warning | LUB | Garza | 23 min |
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.