Alert archive / Texas / Severe Thunderstorm Warnings in 2007
Severe Thunderstorm Warning 121, NWS San Angelo, TX
NWS San Angelo, TX issued this severe thunderstorm warning at Apr 29, 2007, 3:02 PM CDT for Sterling County, Texas. It was in force for 43 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 29, 2007, 3:02 PM CDT (20:02 UTC)
- Expired
- Apr 29, 2007, 3:45 PM CDT
- In force
- 43 min
- Issued by
- NWS San Angelo, TX
- Area
- Counties, with a storm outline in the text
County Sterling County, TX
The radar
The San Angelo radar (KSJT), 73 km from the middle of the area, began a volume at 20:03 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 12:00Z, 8.0 hours before the alert went out and 109 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
- 996 J/kg
- Mixed-layer CIN
- -3 J/kg
- Mixed-layer LCL
- 603 m above ground
- 0-6 km bulk shear
- 27 kt
- 0-1 km storm-relative helicity
- 26 m²/s²
- 0-3 km storm-relative helicity
- 4 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.3
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 San Angelo, TX wrote its last area forecast discussion before this severe thunderstorm warning went out at Apr 29, 1:17 PM CDT, 1 hour 45 minutes earlier.
Area forecast discussion, Apr 29, 1:17 PM CDT, 1 hour 45 minutes before
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</html>Hazardous weather outlook, Apr 29, 2:25 PM CDT, 37 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE SAN ANGELO TX 225 PM CDT SUN APR 29 2007 TXZ049-054-064>066-071>073-076>078-098-099-113-114-127-128-139- 140-154-155-168>170-301930- 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- 225 PM CDT SUN APR 29 2007 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF WEST CENTRAL TEXAS. .DAY ONE...THIS AFTERNOON AND TONIGHT A TORNADO WATCH IS IN EFFECT FOR CROCKETT...SUTTON...AND SCHLEICHER COUNTIES UNTIL 8 PM. TORNADIC STORMS COULD DEVELOP ANYTIME THROUGH THIS EVENING. THE MAIN THREATS ARE ISOLATED TORNADOES... LARGE HAIL...LOCALLY HEAVY RAINFALL...AND DAMAGING WINDS. AN UPPER LOW IN MEXICO WILL MOVE EAST TOWARD WEST CENTRAL TEXAS THIS AFTERNOON AND TONIGHT. MOISTURE WILL CONTINUE TO FLOW NORTH FROM THE GULF OF MEXICO AHEAD OF THE UPPER LOW. THUNDERSTORMS WITH VERY HEAVY RAIN ARE EXPECTED TO FORM ACROSS THE NORTHERN EDWADS PLATEAU LATE THIS EVENING AND MOVE NORTH AND NORTHEAST INTO WEST CENTRAL TEXAS. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY LOCALLY HEAVY RAINFALL WILL CONTINUE TO BE THE MAIN THREAT AS THE UPPER LOW SLOWLY MOVES EAST ACROSS WEST CENTRAL TEXAS MONDAY INTO TUESDAY. SOME AREAS MAY SEE 2 TO 4 INCHES OF RAINFALL...WHICH COULD PRODUCE FLOODING OF LOW LYING AREAS AND LOW WATER CROSSINGS. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY .SPOTTER INFORMATION STATEMENT...
In the hours before
Special weather statement, Apr 29, 11:17 AM CDT, 3 hours 45 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SAN ANGELO TX 1117 AM CDT SUN APR 29 2007 TXZ076-291715- CROCKETT TX- 1117 AM CDT SUN APR 29 2007 ...SIGNIFICANT WEATHER ALERT EFFECTIVE UNTIL 1215 PM CDT FOR CROCKETT COUNTY... AT 1112 AM CDT...A STRONG THUNDERSTORM WAS INDICATED BY NATIONAL WEATHER SERVICE DOPPLER RADAR OVER EAST CENTRAL PECOS COUNTY...OR ABOUT 7 MILES NORTH OF BAKERSFIELD...MOVING NORTH AT 25 MPH. THE STRONG THUNDERSTORM WILL IMPACT U.S. HIGHWAY 385 BETWEEN GIRVIN AND MCCAMEY...AND ALSO MAINLY RURAL AREAS OF...NORTHWESTERN CROCKETT COUNTY. HALF INCH SIZE HAIL AND WIND GUSTS TO 50 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, Apr 29, 1:27 PM CDT, 1 hour 35 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SAN ANGELO TX 127 PM CDT SUN APR 29 2007 TXZ049-291900- FISHER TX- 127 PM CDT SUN APR 29 2007 ...SIGNIFICANT WEATHER ALERT EFFECTIVE UNTIL 200 PM CDT FOR FISHER COUNTY... AT 125 PM CDT...A STRONG THUNDERSTORM WAS INDICATED BY NATIONAL WEATHER SERVICE DOPPLER RADAR 5 MILES NORTHWEST OF ROTAN...OR ABOUT 24 MILES WEST OF HAMLIN...MOVING NORTH AT 25 MPH. THE STRONG THUNDERSTORM WILL REMAIN OVER MAINLY RURAL AREAS OF... NORTHWESTERN FISHER COUNTY. THIS STORM WILL PRODUCE SMALL HAIL...AND STRONG WINDS NEAR 45 MPH. BE PREPARED FOR A POSSIBLE WARNING.
The office that day
Everything else NWS San Angelo, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 29, 9:53 AM CDT | Flash Flood Warning | SJT | Crockett | 4 hr |
| Apr 29, 3:01 PM CDT | Severe Thunderstorm Warning | SJT | Coke, Tom Green | 25 min |
| Apr 29, 3:18 PM CDT | Severe Thunderstorm Warning | SJT | Coke, Runnels, Tom Green | 42 min |
| Apr 29, 4:00 PM CDT | Severe Thunderstorm Warning | SJT | Coke, Runnels | 45 min |
| Apr 29, 4:05 PM CDT | Flash Flood Watch | SJT | Brown, Callahan, Coke, Coleman, Concho, Crockett and 18 more | 19 hr |
| Apr 29, 4:07 PM CDT | Severe Thunderstorm Warning | SJT | Haskell | 23 min |
| Apr 29, 4:09 PM CDT | Tornado Warning | SJT | Coke, Runnels | 51 min |
| Apr 29, 4:26 PM CDT | Severe Thunderstorm Warning | SJT | Haskell | 34 min |
| Apr 29, 4:57 PM CDT | Severe Thunderstorm Warning | SJT | Coke, Nolan, Runnels, Taylor | 63 min |
| Apr 29, 5:13 PM CDT | Severe Thunderstorm Warning | SJT | Jones | 62 min |
| Apr 29, 5:16 PM CDT | Severe Thunderstorm Warning | SJT | Irion, Sterling, Tom Green | 59 min |
| Apr 29, 5:47 PM CDT | Severe Thunderstorm Warning | SJT | Haskell, Shackelford, Throckmorton | 58 min |
| Apr 29, 6:08 PM CDT | Severe Thunderstorm Warning | SJT | Coke, Nolan | 52 min |
| Apr 29, 6:15 PM CDT | Flash Flood Warning | SJT | Haskell, Jones, Shackelford, Throckmorton | 3 hr |
| Apr 29, 6:46 PM CDT | Severe Thunderstorm Warning | SJT | Shackelford, Throckmorton | 59 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.