Alert archive / Texas / Severe Thunderstorm Warnings in 2007
Severe Thunderstorm Warning 248, NWS San Angelo, TX
NWS San Angelo, TX issued this severe thunderstorm warning at May 30, 2007, 7:31 PM CDT for Shackelford County, Texas. It was in force for 14 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 30, 2007, 7:31 PM CDT (00:31 UTC)
- Expired
- May 30, 2007, 7:45 PM CDT
- In force
- 14 min
- Issued by
- NWS San Angelo, TX
- Area
- Counties, with a storm outline in the text
County Shackelford County, TX
The radar
The Dyess AFB radar (KDYX), 24 km from the middle of the area, began a volume at 00:35 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| May 30, 7:27 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
The nearest sounding before it
Fort Worth, TX (KFWD), launched 00:00Z, 0.5 hours before the alert went out and 193 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
- 401 J/kg
- Mixed-layer CIN
- -272 J/kg
- Mixed-layer LCL
- 1064 m above ground
- 0-6 km bulk shear
- 30 kt
- 0-1 km storm-relative helicity
- 54 m²/s²
- 0-3 km storm-relative helicity
- 178 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 San Angelo, TX wrote its last area forecast discussion before this severe thunderstorm warning went out at May 30, 6:40 PM CDT, 51 minutes earlier.
Area forecast discussion, May 30, 6:40 PM CDT, 51 minutes before
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</html>Hazardous weather outlook, May 30, 3:19 PM CDT, 4 hours 12 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE SAN ANGELO TX 319 PM CDT WED MAY 30 2007 TXZ049-054-064>066-071>073-076>078-098-099-113-114-127-128-139- 140-154-155-168>170-312030- FISHER-NOLAN-STERLING-COKE-RUNNELS-IRION-TOM GREEN-CONCHO- CROCKETT-SCHLEICHER-SUTTON-HASKELL-THROCKMORTON-JONES-SHACKELFORD- TAYLOR-CALLAHAN-COLEMAN-BROWN-MCCULLOCH-SAN SABA-MENARD-KIMBLE- MASON- 319 PM CDT WED MAY 30 2007 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF WEST CENTRAL TEXAS. .DAY ONE...THIS AFTERNOON AND TONIGHT A COLD FRONT WILL CONTINUE TO MOVE SLOWLY SOUTH INTO THE BIG COUNTRY. ALSO...SEVERAL THUNDERSTORM OUTFLOW BOUNDARIES CONTINUE TO PROPAGATE ACROSS WEST CENTRAL TEXAS THIS AFTERNOON. THE COMBINATION OF THE OUTFLOW BOUNDARIES AND THE COOL FRONT WILL BE THE FOCUS FOR SCATTERED THUNDERSTORMS MAINLY THIS AFTERNOON AND EVENING ACROSS THE BIG COUNTRY...HEARTLAND...NORTHWEST CONCHO VALLEY AND THE NORTHWEST HILL COUNTRY. ISOLATED THUNDERSTORMS WILL BE POSSIBLE ACROSS THE REMAINDER OF WEST CENTRAL TEXAS. IF THUNDERSTORMS DEVELOP...THE THUNDERSTORMS WILL QUICKLY BECOME SEVERE. THE MAIN THREATS WILL BE VERY LARGE HAIL AND DAMAGING WINDS...HOWEVER ISOLATED TORNADOES WILL ALSO BE POSSIBLE THIS AFTERNOON AND EARLY EVENING...WHERE THUNDERSTORMS DEVELOP ALONG ANY BOUNDARIES. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY UPPER LEVEL NORTHWEST FLOW AND A STATIONARY FRONT WILL BE OVER WEST CENTRAL TEXAS THROUGH SUNDAY. ISOLATED TO SCATTERED THUNDERSTORMS WILL BE POSSIBLE. A FEW STORMS MAY BE SEVERE THURSDAY AND FRIDAY...MAINLY NORTH OF A MERTZON TO SAN ANGELO TO COLEMAN LINE. THE MAIN THREATS WILL BE LARGE HAIL AND DAMAGING WINDS. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE NEEDED STARTING BETWEEN 4 PM AND 7 PM THIS AFTERNOON AND EVENING AND CONTINUING THROUGH THE EVENING. ACTIVATION IS MORE LIKELY NORTHEAST OF A LINE FROM STERLING CITY TO SAN ANGELO TO JUNCTION LINE.
In the hours before
Special weather statement, May 30, 7:00 PM CDT, 31 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SAN ANGELO TX 700 PM CDT WED MAY 30 2007 TXZ114-310045- SHACKELFORD TX- 700 PM CDT WED MAY 30 2007 ...SIGNIFICANT WEATHER ALERT EFFECTIVE UNTIL 745 PM CDT FOR SHACKELFORD COUNTY... AT 657 PM CDT...A STRONG THUNDERSTORM WAS INDICATED BY NATIONAL WEATHER SERVICE DOPPLER RADAR 3 MILES SOUTHEAST OF FORT GRIFFIN...OR ABOUT 13 MILES NORTHEAST OF ALBANY...MOVING EAST AT 15 MPH. ANOTHER STORM WAS DEVELOPING JUST NORTHWEST OF ALBANY. THE STRONG THUNDERSTORM WILL REMAIN OVER MAINLY RURAL AREAS OF... NORTHEASTERN SHACKELFORD COUNTY. PEA SIZE HAIL AND WIND GUSTS TO 45 MPH ARE LIKELY WITH THIS STORM. HEAVY RAINFALL WILL CAUSE PONDING OF WATER ON AREA ROADWAYS... ESPECIALLY THOSE IN POOR DRAINAGE AREAS. RESIDENTS ARE ENCOURAGED TO MONITOR THE SITUATION CLOSELY AND BE PREPARED TO TAKE THE PROPER ACTIONS SHOULD A WARNING BE ISSUED.
Special weather statement, May 30, 7:23 PM CDT, 8 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SAN ANGELO TX 723 PM CDT WED MAY 30 2007 TXZ049-054-064>066-071>073-076>078-098-099-113-114-127-128-139- 140-154-155-168>170-310230- FISHER-NOLAN-STERLING-COKE-RUNNELS-IRION-TOM GREEN-CONCHO- CROCKETT-SCHLEICHER-SUTTON-HASKELL-THROCKMORTON-JONES-SHACKELFORD- TAYLOR-CALLAHAN-COLEMAN-BROWN-MCCULLOCH-SAN SABA-MENARD-KIMBLE- MASON- INCLUDING THE CITIES OF...ROTAN...ROBY...SWEETWATER... STERLING CITY...ROBERT LEE...BRONTE...BALLINGER...WINTERS... MERTZON...SAN ANGELO...EDEN...OZONA...ELDORADO...SONORA... HASKELL...THROCKMORTON...WOODSON...STAMFORD...ANSON...HAMLIN... ALBANY...ABILENE...CLYDE...BAIRD...CROSS PLAINS...COLEMAN... BROWNWOOD...BRADY...SAN SABA...MENARD...JUNCTION...MASON 723 PM CDT WED MAY 30 2007 ...SCATTERED SEVERE STORMS ARE POSSIBLE THROUGH LATE EVENING... A SEVERE THUNDERSTORM WATCH IS NOW IN EFFECT FOR MUCH OF WEST CENTRAL TEXAS UNTIL MIDNIGHT. AT 715 PM...RADAR INDICATED SCATTERED THUNDERSTORMS WERE RAPIDLY DEVELOPING ALONG AN OUTFLOW BOUNDARY ACROSS THE BIG COUNTRY. CONDITIONS ARE FAVORABLE FOR SCATTERED SEVERE STORMS ACROSS THE BIG COUNTRY...HEARTLAND AND INTO THE CONCHO VALLEY THROUGH EARLY TONIGHT. ISOLATED SEVERE STORMS ARE POSSIBLE FARTHER TO THE SOUTH. STAY TUNED TO NOAA ALL HAZARDS RADIO OR YOUR LOCAL TELEVISION AND RADIO STATIONS FOR THE LATEST STATEMENTS AND WARNINGS ON THESE STORMS.
The office that day
Everything else NWS San Angelo, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 30, 7:07 PM CDT | Severe Thunderstorm Warning | SJT | Shackelford | 23 min |
| May 30, 7:27 PM CDT | Severe Thunderstorm Warning | SJT | Callahan, Coleman, Taylor | 63 min |
| May 30, 7:44 PM CDT | Severe Thunderstorm Warning | SJT | Callahan | 46 min |
| May 30, 7:50 PM CDT | Severe Thunderstorm Warning | SJT | Coleman, Runnels, Taylor | 40 min |
| May 30, 8:19 PM CDT | Severe Thunderstorm Warning | SJT | Callahan, Shackelford | 41 min |
| May 30, 8:30 PM CDT | Severe Thunderstorm Warning | SJT | Runnels | 30 min |
| May 30, 8:56 PM CDT | Severe Thunderstorm Warning | SJT | Callahan | 49 min |
| May 30, 11:59 PM CDT | Severe Thunderstorm Warning | SJT | Brown | 46 min |
| May 31, 12:44 AM CDT | Severe Thunderstorm Warning | SJT | Brown | 46 min |
| May 31, 12:52 AM CDT | Flash Flood Warning | SJT | Brown | 3 hr |
| May 31, 1:25 AM CDT | Severe Thunderstorm Warning | SJT | Brown | 50 min |
Nearby
Severe Thunderstorm Warnings in Texas, 2007Every severe thunderstorm warning in 2007
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.