Alert archive / Texas / Severe Thunderstorm Warnings in 2009
Severe Thunderstorm Warning 294, NWS Lubbock, TX
NWS Lubbock, TX issued this severe thunderstorm warning at Oct 7, 2009, 11:50 PM CDT for Cochran County, Yoakum 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
- Oct 7, 2009, 11:50 PM CDT (04:50 UTC)
- Expired
- Oct 8, 2009, 12:45 AM CDT
- In force
- 55 min
- Issued by
- NWS Lubbock, TX
- Area
- Storm-based polygon
Counties Cochran County, TX, Yoakum County, TX
The radar
The Lubbock radar (KLBB), 99 km from the middle of the area, began a volume at 04:53 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
Midland Regional, TX (KMAF), launched 00:00Z, 4.8 hours before the alert went out and 170 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
- 191 J/kg
- Mixed-layer CIN
- -401 J/kg
- Mixed-layer LCL
- 714 m above ground
- 0-6 km bulk shear
- 44 kt
- 0-1 km storm-relative helicity
- 291 m²/s²
- 0-3 km storm-relative helicity
- 367 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.6
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 Oct 7, 9:10 PM CDT, 2 hours 40 minutes earlier.
Area forecast discussion, Oct 7, 9:10 PM CDT, 2 hours 40 minutes before
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</html>Hazardous weather outlook, Oct 7, 8:12 PM CDT, 3 hours 38 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE LUBBOCK TX 812 PM CDT WED OCT 7 2009 TXZ021>044-081300- PARMER-CASTRO-SWISHER-BRISCOE-HALL-CHILDRESS-BAILEY-LAMB-HALE- FLOYD-MOTLEY-COTTLE-COCHRAN-HOCKLEY-LUBBOCK-CROSBY-DICKENS-KING- YOAKUM-TERRY-LYNN-GARZA-KENT-STONEWALL- 812 PM CDT WED OCT 7 2009 THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE EXTREME SOUTHERN TEXAS PANHANDLE...SOUTH PLAINS AND ROLLING PLAINS. .DAY ONE...TONIGHT SCATTERED SHOWERS AND THUNDERSTORMS ARE EXPECTED TO DEVELOP ACROSS SOUTHEAST NEW MEXICO AND THE WESTERN PERMIAN BASIN THIS EVENING... BEFORE EXPANDING NORTHEAST INTO MUCH OF THE OUTLOOK AREA LATER TONIGHT. THE PRESENCE OF ABUNDANT LOW LEVEL MOISTURE AND POTENTIAL FOR STORM CELLS TO REPEATEDLY MOVE OVER THE SAME AREA MAY LEAD TO THE DEVELOPMENT OF HEAVY RAINFALL AND MINOR FLOODING. IN ADDITION...A FEW STORMS COULD BECOME SEVERE WITH LARGE HAIL BEING THE PRIMARY THREAT. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY THUNDERSTORM CHANCES WILL GRADUALLY DISSIPATE THROUGHOUT THE DAY ON THURSDAY...HOWEVER HEAVY RAIN WILL AGAIN BE POSSIBLE ESPECIALLY OFF THE CAPROCK. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT ANTICIPATED AT THIS TIME.
In the hours before
Special weather statement, Oct 7, 11:24 PM CDT, 26 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE LUBBOCK TX 1124 PM CDT WED OCT 7 2009 TXZ033-039-080515- COCHRAN TX-YOAKUM TX- 1124 PM CDT WED OCT 7 2009 ...SIGNIFICANT WEATHER ALERT FOR A STRONG THUNDERSTORM APPROACHING YOAKUM AND COCHRAN COUNTIES... AT 1117 PM CDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A STRONG THUNDERSTORM 35 MILES WEST OF DENVER CITY MOVING NORTHEAST AT 45 MPH. THIS STORM WILL LIKELY PRODUCE HAIL...VERY HEAVY RAINS AND FREQUENT CLOUD TO GROUND LIGHTNING. THE THUNDERSTORM IS EXPECTED TO ENTER NORTHWEST YOAKUM COUNTY AROUND 1150 PM CDT...AND SOUTHWEST COCHRAN COUNTY SHORTLY AFTER MIDNIGHT. PERSONS IN THE PATH OF THIS STRONG THUNDERSTORM SHOULD CLOSELY MONITOR WEATHER RADIO OR OTHER MEDIA FOR OTHER UPDATES AND POSSIBLE WARNINGS. BE PREPARED TO TAKE ACTION IF A WARNING IS ISSUED. LAT...LON 3383 10303 3383 10261 3295 10258 3295 10305 TIME...MOT...LOC 0417Z 219DEG 37KT 3305 10341 MCZ
The office that day
Everything else NWS Lubbock, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 8, 12:44 AM CDT | Severe Thunderstorm Warning | LUB | Bailey, Cochran, Hockley, Lamb | 46 min |
| Oct 8, 3:23 PM CDT | Severe Thunderstorm Warning | LUB | Cottle, Dickens, King | 45 min |
| Oct 8, 4:12 PM CDT | Severe Thunderstorm Warning | LUB | Cottle | 33 min |
| Oct 8, 4:41 PM CDT | Severe Thunderstorm Warning | LUB | Cottle, King | 31 min |
| Oct 8, 6:21 PM CDT | Severe Thunderstorm Warning | LUB | King | 54 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.