Alert archive / Texas / Severe Thunderstorm Warnings in 2009
Severe Thunderstorm Warning 183, NWS San Angelo, TX
NWS San Angelo, TX issued this severe thunderstorm warning at Jun 11, 2009, 9:33 PM CDT for San Saba County, Texas. It was in force for 27 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
- Jun 11, 2009, 9:33 PM CDT (02:33 UTC)
- Expired
- Jun 11, 2009, 10:00 PM CDT
- In force
- 27 min
- Issued by
- NWS San Angelo, TX
- Area
- Storm-based polygon
County San Saba County, TX
The radar
The Ft Hood radar (KGRK), 145 km from the middle of the area, began a volume at 02:36 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 |
|---|---|---|---|
| Jun 11, 2:32 PM CDT | Tornado Watch | SPC | 7 hr |
The nearest sounding before it
Fort Worth, TX (KFWD), launched 00:00Z, 2.6 hours before the alert went out and 236 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
- 2849 J/kg
- Mixed-layer CIN
- -107 J/kg
- Mixed-layer LCL
- 1048 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- 128 m²/s²
- 0-3 km storm-relative helicity
- 108 m²/s²
- Significant tornado parameter
- 0.9
- Supercell composite
- 8.1
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 Jun 11, 7:02 PM CDT, 2 hours 31 minutes earlier.
Area forecast discussion, Jun 11, 7:02 PM CDT, 2 hours 31 minutes before
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</html>Hazardous weather outlook, Jun 11, 3:02 PM CDT, 6 hours 31 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE SAN ANGELO TX 302 PM CDT THU JUN 11 2009 TXZ049-054-064>066-071>073-076>078-098-099-113-114-127-128-139- 140-154-155-168>170-122015- 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- 302 PM CDT THU JUN 11 2009 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF WEST CENTRAL TEXAS. .DAY ONE...THIS AFTERNOON AND TONIGHT A TORNADO WATCH IS IN EFFECT FOR THE BIG COUNTRY...HEARTLAND... AND NORTHWEST HILL COUNTRY THROUGH 10 PM TONIGHT. SEVERE THUNDERSTORMS WITH LARGE HAIL AND DAMAGING WINDS ARE EXPECTED WITH THE WATCH AREA...AND A FEW TORNADOES ARE ALSO POSSIBLE. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY ISOLATED TO WIDELY SCATTERED SHOWERS AND THUNDERSTORMS ARE POSSIBLE FRIDAY AFTERNOON AND EVENING ACROSS THE NORTHWEST HILL COUNTRY...AND ALSO ON SATURDAY AFTERNOON AND EVENING ACROSS MOST OF WEST CENTRAL TEXAS. SOME OF THESE THUNDERSTORMS COULD BECOME SEVERE WITH THE MAIN THREATS BEING LARGE HAIL AND DAMAGING WINDS. IN ADDITION...TEMPERATURES ARE EXPECTED TO REACH 100 TO 105 DEGREES ACROSS THE ENTIRE AREA FRIDAY AND SATURDAY. AREA RESIDENTS ARE ENCOURAGED TO LIMIT OUTDOOR ACTIVITY IF POSSIBLE...AND DRINK PLENTY OF FLUIDS. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION HAS BEEN REQUESTED ACROSS THE HEARTLAND...AND IS LIKELY ACROSS THE BIG COUNTRY AND NORTHWEST HILL COUNTRY AREAS.
In the hours before
Special weather statement, Jun 11, 4:42 PM CDT, 4 hours 51 minutes before
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</html>The office that day
Everything else NWS San Angelo, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 11, 7:02 PM CDT | Areal Flood Advisory | SJT | San Saba | 3 hr |
| Jun 11, 9:58 PM CDT | Severe Thunderstorm Warning | SJT | San Saba | 32 min |
| Jun 12, 4:38 PM CDT | Severe Thunderstorm Warning | SJT | Brown | 52 min |
| Jun 12, 5:29 PM CDT | Severe Thunderstorm Warning | SJT | Brown | 46 min |
| Jun 12, 5:34 PM CDT | Severe Thunderstorm Warning | SJT | Brown | 26 min |
| Jun 12, 5:52 PM CDT | Severe Thunderstorm Warning | SJT | San Saba | 53 min |
| Jun 12, 6:00 PM CDT | Tornado Warning | SJT | San Saba | 30 min |
| Jun 12, 6:27 PM CDT | Tornado Warning | SJT | San Saba | 48 min |
| Jun 12, 6:43 PM CDT | Severe Thunderstorm Warning | SJT | Brown | 32 min |
| Jun 12, 6:50 PM CDT | Severe Thunderstorm Warning | SJT | McCulloch | 25 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.