Alert archive / Texas / Severe Thunderstorm Warnings in 2009
Severe Thunderstorm Warning 8, NWS Lubbock, TX
NWS Lubbock, TX issued this severe thunderstorm warning at Apr 11, 2009, 6:57 PM CDT for Lynn County, Terry County, Texas. It was in force for 63 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 11, 2009, 6:57 PM CDT (23:57 UTC)
- Expired
- Apr 11, 2009, 8:00 PM CDT
- In force
- 63 min
- Issued by
- NWS Lubbock, TX
- Area
- Storm-based polygon
Counties Lynn County, TX, Terry County, TX
The radar
The Lubbock radar (KLBB), 58 km from the middle of the area, began a volume at 23:57 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 |
|---|---|---|---|
| Apr 11, 3:18 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
The nearest sounding before it
Midland Regional, TX (KMAF), launched 12:00Z, 12.0 hours before the alert went out and 137 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
- 1657 m above ground
- 0-6 km bulk shear
- 60 kt
- 0-1 km storm-relative helicity
- 514 m²/s²
- 0-3 km storm-relative helicity
- 417 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.2
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 Apr 11, 6:46 PM CDT, 11 minutes earlier.
Area forecast discussion, Apr 11, 6:46 PM CDT, 11 minutes before
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</html>Hazardous weather outlook, Apr 11, 11:00 AM CDT, 7 hours 57 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE LUBBOCK TX 1100 AM CDT SAT APR 11 2009 TXZ021>044-121600- PARMER-CASTRO-SWISHER-BRISCOE-HALL-CHILDRESS-BAILEY-LAMB-HALE- FLOYD-MOTLEY-COTTLE-COCHRAN-HOCKLEY-LUBBOCK-CROSBY-DICKENS-KING- YOAKUM-TERRY-LYNN-GARZA-KENT-STONEWALL- 1100 AM CDT SAT APR 11 2009 THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE EXTREME SOUTHERN TEXAS PANHANDLE...SOUTH PLAINS AND ROLLING PLAINS. .DAY ONE...TODAY AND TONIGHT CONVECTIVE THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS TODAY AND TONIGHT WITH LARGE HAIL AND DAMAGING WINDS BEING THE PRIMARY THREATS. THUNDERSTORMS ARE EXPECTED TO INTENSIFY ACROSS THE TEXAS-NEW MEXICO BORDER AND EASTWARD OVER THE SOUTH PLAINS TODAY...AND ESPECIALLY TONIGHT. ALTHOUGH WIDESPREAD SHOWERS AND THUNDERSTORMS ARE EXPECTED TO DEVELOP LATE TODAY...A FEW ORGANIZED CONVECTIVE COMPLEXES WITH EMBEDDED SUPERCELLS WILL BE POSSIBLE. THE MOST LIKELY AREAS TO EXPERIENCE LARGE HAIL AND DAMAGING WINDS WILL BE OVER THE SOUTHERN SOUTH PLAINS LATE THIS AFTERNOON AND THIS EVENING. ELSEWHERE...STORMS WILL BECOME INCREASINGLY ELEVATED AS THEY SPREAD NORTHWARD OVER THE SOUTH PLAINS AND EXTREME SOUTHERN PANHANDLE...FAVORING A LARGE HAIL THREAT. THE STRONGER STORMS COULD ALSO INDUCE LOCALIZED FLOODING. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY A FEW STRONG TO SEVERE THUNDERSTORMS ARE POSSIBLE LATE SUNDAY... MAINLY OVER THE NORTHERN ROLLING PLAINS AND EXTREME SOUTHEASTERN TEXAS PANHANDLE. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE REQUIRED LATER TODAY.
In the hours before
Special weather statement, Apr 11, 4:12 PM CDT, 2 hours 45 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE LUBBOCK TX 412 PM CDT SAT APR 11 2009 TXZ039-112145- YOAKUM TX- 412 PM CDT SAT APR 11 2009 ...STRONG THUNDERSTORMS APPROACHING SOUTHWESTERN YOAKUM COUNTY... AT 409 PM CDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED SEVERAL STRONG THUNDERSTORM SOUTHWEST OF DENVER CITY...INCLUDING A SEVERE STORM WITH LARGE HAIL NEAR HOBBS NEW MEXICO. THESE STORMS WERE MOVING NORTH TO NORTHEAST AT 30 MPH AND WILL BE MOVING INTO SOUTHERN AND WESTERN PORTIONS OF YOAKUM COUNTY BY 430 PM. 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, Apr 11, 5:18 PM CDT, 1 hour 39 minutes before
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</html>Local storm report, Apr 11, 5:21 PM CDT, 1 hour 36 minutes before
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</html>Local storm report, Apr 11, 5:38 PM CDT, 1 hour 19 minutes before
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</html>Special weather statement, Apr 11, 6:04 PM CDT, 53 minutes before
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</html>Special weather statement, Apr 11, 6:16 PM CDT, 41 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 |
|---|---|---|---|---|
| Apr 11, 4:36 PM CDT | Severe Thunderstorm Warning | LUB | Yoakum | 54 min |
| Apr 11, 4:46 PM CDT | Tornado Warning | LUB | Yoakum | 29 min |
| Apr 11, 5:31 PM CDT | Severe Thunderstorm Warning | LUB | Yoakum | 59 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.