Alert archive / Texas / Severe Thunderstorm Warnings in 2009
Severe Thunderstorm Warning 110, NWS San Angelo, TX
NWS San Angelo, TX issued this severe thunderstorm warning at May 28, 2009, 7:05 PM CDT for Sterling County, Texas. It was in force for 25 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 28, 2009, 7:05 PM CDT (00:05 UTC)
- Expired
- May 28, 2009, 7:30 PM CDT
- In force
- 25 min
- Issued by
- NWS San Angelo, TX
- Area
- Storm-based polygon
County Sterling County, TX
The radar
The San Angelo radar (KSJT), 73 km from the middle of the area, began a volume at 00:09 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, 0.1 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
- 73 J/kg
- Mixed-layer CIN
- -22 J/kg
- Mixed-layer LCL
- 3150 m above ground
- 0-6 km bulk shear
- 42 kt
- 0-1 km storm-relative helicity
- -53 m²/s²
- 0-3 km storm-relative helicity
- -14 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.4
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 28, 6:08 PM CDT, 57 minutes earlier.
Area forecast discussion, May 28, 6:08 PM CDT, 57 minutes before
AREA FORECAST DISCUSSION...UPDATED NATIONAL WEATHER SERVICE SAN ANGELO TX 608 PM CDT THU MAY 28 2009 .AVIATION... /00Z UPDATE/ ISOLATED THUNDERSTORMS WILL CONTINUE OVER MOST OF WEST CENTRAL TEXAS THROUGH EARLY EVENING...HAVE INCLUDED MENTION OF CB IN ALL TAFS. CONVECTION SHOULD END BY EARLY EVENING WITH LOSS OF DAYTIME HEATING. VFR CONDITIONS WILL CONTINUE OVER ALL TAF SITES THROUGH THE NEXT 24 HOURS. && .PREV DISCUSSION... /ISSUED 339 PM CDT THU MAY 28 2009/ SHORT TERM... ISOLATED TSTMS DEVELOPING EAST OF SAN ANGELO THIS AFTERNOON. THE 19Z LAPS DATA INDICATED A SBCAPE AXIS OF 1000 TO 2000 J/KG EXTENDING FROM JUNCTION TO SAN ANGELO TO ABILENE. ADDITIONAL STORMS MAY DEVELOP ACROSS MAINLY THE SOUTHERN 2/3 OF CWFA THIS AFTERNOON AND EVENING. OTHER STORMS DEVELOPING ALONG THE HIGH TERRAIN OF SOUTHWEST TEXAS MAY MAKE IT EAST INTO WEST CENTRAL TEXAS LATER TONIGHT. WILL GO WITH SLGT CHC POPS ACROSS THE SOUTHWEST CWFA ON FRIDAY DUE TO WEAK LOW LEVEL UPSLOPE FLOW AND SOME INSTABILITY DURING THE AFTERNOON HOURS. LONG TERM... THE 500 MB HEIGHTS WILL SLOWLY RISE THIS WEEKEND INTO EARLY NEXT WEEK ACROSS TEXAS. THE MAIN STORM TRACK WILL BE ACROSS THE CENTRAL PLAINS INTO THE UPPER MIDWEST NEXT WEEK. AN UPPER LEVEL RIDGE WILL BE OVER THE SOUTHERN PLAINS BY LATE NEXT WEEK. GOING WITH A DRY FORECAST FRIDAY NIGHT THROUGH NEXT THURSDAY. ALSO...TEMPERATURES WILL BE WARMING WITH HIGHS IN THE LOWER TO MID 90S. && .PRELIMINARY POINT TEMPS/POPS... ABILENE 62 87 63 90 63 / 20 10 10 10 10 SAN ANGELO 63 87 63 91 63 / 20 20 10 10 10 JUNCTION 66 88 62 88 63 / 20 20 10 10 10 && .SJT WATCHES/WARNINGS/ADVISORIES... NONE. && 99/99/15
Hazardous weather outlook, May 28, 1:41 PM CDT, 5 hours 24 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE SAN ANGELO TX 141 PM CDT THU MAY 28 2009 TXZ049-054-064>066-071>073-076>078-098-099-113-114-127-128-139- 140-154-155-168>170-291845- 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- 141 PM CDT THU MAY 28 2009 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF WEST CENTRAL TEXAS. .DAY ONE...THIS AFTERNOON AND TONIGHT THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS TODAY AND TONIGHT ACROSS THE SOUTHWEST PORTIONS OF WEST CENTRAL TEXAS. THE MAIN AREA OF CONCERN WILL BE ALONG AND SOUTHWEST OF A SAN ANGELO TO JUNCTION LINE. PRIMARY THREATS WILL BE LARGE HAIL AND DAMAGING WINDS. HEAVY RAINFALL IS ALSO POSSIBLE. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE REQUESTED THIS AFTERNOON AND EVENING ACROSS PORTIONS OF THE CONCHO VALLEY...NORTHERN EDWARDS PLATEAU...AND THE NORTHWEST HILL COUNTRY.
In the hours before
Special weather statement, May 28, 5:21 PM CDT, 1 hour 44 minutes before
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</html>Special weather statement, May 28, 6:07 PM CDT, 58 minutes before
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</html>Special weather statement, May 28, 6:19 PM CDT, 46 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SAN ANGELO TX 619 PM CDT THU MAY 28 2009 TXZ064-290015- STERLING TX- 619 PM CDT THU MAY 28 2009 ...SIGNIFICANT WEATHER ALERT EFFECTIVE UNTIL 715 PM CDT FOR STERLING COUNTY... AT 619 PM CDT...A STRONG THUNDERSTORM WAS INDICATED BY NATIONAL WEATHER SERVICE DOPPLER RADAR OVER EXTREME EAST CENTRAL GLASSCOCK COUNTY...OR ABOUT 13 MILES EAST OF GARDEN CITY...MOVING EAST AT 10 MPH. THE STRONG THUNDERSTORM WILL REMAIN OVER MAINLY RURAL AREAS OF... CENTRAL STERLING COUNTY. PEA 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. 15
Special weather statement, May 28, 6:30 PM CDT, 35 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SAN ANGELO TX 630 PM CDT THU MAY 28 2009 TXZ071-290015- IRION TX- 630 PM CDT THU MAY 28 2009 ...SIGNIFICANT WEATHER ALERT EFFECTIVE UNTIL 715 PM CDT FOR IRION COUNTY... AT 627 PM CDT...A STRONG THUNDERSTORM WAS INDICATED BY NATIONAL WEATHER SERVICE DOPPLER RADAR 8 MILES WEST OF MERTZON...MOVING EAST AT 15 MPH. * THE STRONG THUNDERSTORM WILL BE NEAR... MERTZON BY 700 PM CDT SHERWOOD BY 705 PM CDT PEA 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. 15
Special weather statement, May 28, 6:55 PM CDT, 10 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SAN ANGELO TX 655 PM CDT THU MAY 28 2009 TXZ066-127-290100- TAYLOR TX-RUNNELS TX- 655 PM CDT THU MAY 28 2009 ...SIGNIFICANT WEATHER ALERT EFFECTIVE UNTIL 800 PM CDT FOR TAYLOR AND RUNNELS COUNTIES... AT 653 PM CDT...A STRONG THUNDERSTORM WAS INDICATED BY NATIONAL WEATHER SERVICE DOPPLER RADAR 2 MILES NORTH OF HAPPY VALLEY...OR ABOUT 13 MILES NORTHEAST OF BLACKWELL...MOVING SOUTHEAST AT 15 MPH. * THE STRONG THUNDERSTORM WILL BE NEAR... HAPPY VALLEY BY 700 PM CDT WINGATE BY 720 PM CDT DRASCO AND PUMPHREY BY 735 PM CDT BRADSHAW BY 745 PM CDT WINTERS BY 800 PM CDT PEA 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.
Local storm report, May 28, 7:02 PM CDT, 3 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SAN ANGELO TX
702 PM CDT THU MAY 28 2009
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0700 PM HAIL 6 SSW MERTZON 31.18N 100.86W
05/28/2009 E0.88 INCH IRION TX TRAINED SPOTTER
&&
MCThe office that day
Everything else NWS San Angelo, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 28, 7:09 PM CDT | Severe Thunderstorm Warning | SJT | Irion, Schleicher, Tom Green | 51 min |
| May 28, 7:57 PM CDT | Severe Thunderstorm Warning | SJT | Schleicher | 48 min |
| May 28, 8:41 PM CDT | Severe Thunderstorm Warning | SJT | Schleicher, Sutton | 49 min |
| May 28, 10:29 PM CDT | Areal Flood Advisory | SJT | Kimble | 2 hr |
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.