Alert archive / Texas / Severe Thunderstorm Warnings in 2013

Severe Thunderstorm Warning 92, NWS San Angelo, TX

May 9, 2013Coleman County, Texas

NWS San Angelo, TX issued this severe thunderstorm warning at May 9, 2013, 5:39 PM CDT for Coleman County, Texas. It was in force for 51 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 9, 2013, 5:39 PM CDT (22:39 UTC)
Expired: May 9, 2013, 6:30 PM CDT
In force: 51 min
Issued by: NWS San Angelo, TX
Area: Storm-based polygon

County Coleman County, TX

The radar

The Dyess AFB radar (KDYX), 87 km from the middle of the area, began a volume at 22:39 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 9, 11:52 AM CDT	Severe Thunderstorm Watch	SPC	9 hr

The nearest sounding before it

Fort Worth, TX (KFWD), launched 12:00Z, 10.7 hours before the alert went out and 235 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 474 J/kg
Mixed-layer CIN: -390 J/kg
Mixed-layer LCL: 797 m above ground
0-6 km bulk shear: 38 kt
0-1 km storm-relative helicity: 229 m²/s²
0-3 km storm-relative helicity: 228 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

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 9, 3:02 PM CDT, 2 hours 37 minutes earlier.

Area forecast discussion, May 9, 3:02 PM CDT, 2 hours 37 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN ANGELO TX
302 PM CDT THU MAY 9 2013

.SHORT TERM...
ATMOSPHERE WAS VERY UNSTABLE WITH WRF SB BASED CAPES OF 3000 J/KG
ACROSS THE BIG COUNTRY AND CONCHO VALLEY...SOUTHWARD TO SONORA
THIS AFTERNOON. SEVERE STORMS WITH HAIL OF 2 INCHES IN DIAMETER
WERE ALREADY REPORTED IN SWEETWATER. A SEVERE THUNDERSTORM WATCH
IS IN EFFECT FOR NEARLY ALL OF WEST CENTRAL TEXAS UNTIL 7 PM. MAIN
THREATS ARE VERY LARGE HAIL AND DAMAGING WINDS. SEVERE
THUNDERSTORMS LIKELY INTO THIS EVENING.

WEAK COLD FRONT MOVING THROUGH THE SOUTHERN TEXAS PANHANDLE THIS
AFTERNOON...WILL MOVE SOUTH INTO THE BIG COUNTRY AFTER 1 AM TONIGHT...AND
ALONG A SAN ANGELO TO SAN SABA LINE 1 PM FRIDAY AFTERNOON. THIS
WILL BE A FOCUS FOR ADDITIONAL THUNDERSTORM DEVELOPMENT. COULD SEE
AN ISOLATED SEVERE THUNDERSTORM AS THE COLD FRONT MOVES
THROUGH...BUT THE BEST CHANCE WILL BE FRIDAY AFTERNOON...WITH WEAK
CONVERGENCE AND SB CAPES OF 2000 J/KG...ALONG AND AHEAD THE COLD
FRONT.

.LONG TERM...
DECREASING RAIN CHANCES FRIDAY NIGHT INTO SATURDAY AS DRIER AIR
MOVES INTO THE REGION FROM THE NORTH. STILL COULD SEE AN ISOLATED
ELEVATED THUNDERSTORM...BUT INSTABILITY IS WEAKER SO DO NOT EXPECT
SEVERE STORMS.

BOTH THE GFS AND EC MODELS DEVELOP A CUT OFF UPPER LOW OVER BAJA
CALIFORNIA...THEN WEAKEN AND SHEAR IT OUT OVER NEW MEXICO AND THE
TEXAS PANHANDLE MONDAY NIGHT INTO WEDNESDAY. BROUGHT A CHANCE OF
SHOWERS AND THUNDERSTORMS DURING THIS TIME PERIOD. WOULD NOT BE
SURPRISED TO SEE A FEW SEVERE STORMS DEVELOP BY TUESDAY
AFTERNOON...AS MOISTURE AND INSTABILITY INCREASE.

&&

.PRELIMINARY POINT TEMPS/POPS...
ABILENE 	 61  77  59  78  52 /  40  50  20  10   5
SAN ANGELO 	 62  79  60  77  52 /  50  60  40  20   5
JUNCTION 	 66  82  62  78  53 /  50  70  40  20  10

&&

.SJT WATCHES/WARNINGS/ADVISORIES...
NONE.
&&

04

Hazardous weather outlook, May 9, 2:09 PM CDT, 3 hours 30 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE SAN ANGELO TX
209 PM CDT THU MAY 9 2013

TXZ049-054-064>066-071>073-076>078-098-099-113-114-127-128-139-
140-154-155-168>170-101915-
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-
209 PM CDT THU MAY 9 2013

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF WEST CENTRAL
TEXAS.

.DAY ONE...THIS AFTERNOON AND TONIGHT

THERE IS SLIGHT RISK OF SEVERE THUNDERSTORMS ACROSS WEST CENTRAL
TEXAS THIS AFTERNOON AND TONIGHT. THE MAIN HAZARDS WILL BE LARGE
HAIL...DAMAGING WINDS...AND DEADLY LIGHTNING.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

EXPECT SCATTERED THUNDERSTORMS FRIDAY AND FRIDAY NIGHT. A FEW
STORMS MAY BE SEVERE ALONG AND SOUTH OF AN OZONA...SAN ANGELO TO
BROWNWOOD LINE. THE MAIN HAZARDS WILL BE LARGE HAIL...DAMAGING
WINDS...AND DANGEROUS CLOUD TO GROUND LIGHTNING.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL BE NEEDED THIS AFTERNOON AND EVENING.

04

In the hours before

Local storm report, May 9, 4:36 PM CDT, 1 hour 3 minutes before

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Local storm report, May 9, 4:50 PM CDT, 49 minutes before

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Local storm report, May 9, 4:52 PM CDT, 47 minutes before

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Special weather statement, May 9, 4:54 PM CDT, 45 minutes before

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Local storm report, May 9, 4:58 PM CDT, 41 minutes before

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Local storm report, May 9, 5:17 PM CDT, 22 minutes before

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The office that day

Everything else NWS San Angelo, TX issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 8, 7:06 PM CDT	Severe Thunderstorm Warning	SJT	Jones	54 min
May 8, 7:52 PM CDT	Severe Thunderstorm Warning	SJT	Jones, Shackelford	53 min
May 9, 6:31 AM CDT	Special Weather Statement	SJT	Concho	44 min
May 9, 6:39 AM CDT	Severe Thunderstorm Warning	SJT	Coleman, Concho, McCulloch, Runnels	51 min
May 9, 7:21 AM CDT	Special Weather Statement	SJT	Coleman, Concho	54 min
May 9, 8:19 AM CDT	Special Weather Statement	SJT	Brown	56 min
May 9, 8:35 AM CDT	Special Weather Statement	SJT	Tom Green	40 min
May 9, 8:56 AM CDT	Severe Thunderstorm Warning	SJT	Brown	49 min
May 9, 9:06 AM CDT	Special Weather Statement	SJT	Tom Green	24 min
May 9, 9:19 AM CDT	Areal Flood Advisory	SJT	Tom Green	116 min
May 9, 9:33 AM CDT	Special Weather Statement	SJT	Coleman, Concho, Runnels, Tom Green	27 min
May 9, 10:11 AM CDT	Special Weather Statement	SJT	Coleman, Runnels	34 min
May 9, 10:44 AM CDT	Special Weather Statement	SJT	Coleman	31 min
May 9, 10:56 AM CDT	Areal Flood Advisory	SJT	Brown, Coleman, Concho	2 hr
May 9, 11:16 AM CDT	Special Weather Statement	SJT	Brown	29 min
May 9, 11:19 AM CDT	Special Weather Statement	SJT	Brown	26 min
May 9, 1:11 PM CDT	Special Weather Statement	SJT	Fisher	34 min
May 9, 1:14 PM CDT	Special Weather Statement	SJT	Taylor	31 min
May 9, 1:38 PM CDT	Severe Thunderstorm Warning	SJT	Fisher, Nolan	52 min
May 9, 1:53 PM CDT	Severe Thunderstorm Warning	SJT	Fisher, Jones	52 min
May 9, 2:18 PM CDT	Severe Thunderstorm Warning	SJT	Fisher, Nolan	42 min
May 9, 2:41 PM CDT	Special Weather Statement	SJT	Jones	34 min
May 9, 2:54 PM CDT	Severe Thunderstorm Warning	SJT	Fisher, Nolan, Taylor	51 min
May 9, 3:10 PM CDT	Severe Thunderstorm Warning	SJT	Nolan, Taylor	50 min
May 9, 3:28 PM CDT	Tornado Warning	SJT	Nolan, Taylor	32 min
May 9, 3:31 PM CDT	Severe Thunderstorm Warning	SJT	Coke, Runnels	29 min
May 9, 3:54 PM CDT	Tornado Warning	SJT	Runnels, Taylor	36 min
May 9, 3:56 PM CDT	Severe Thunderstorm Warning	SJT	Coke, Runnels	49 min
May 9, 4:30 PM CDT	Severe Thunderstorm Warning	SJT	Runnels	45 min
May 9, 4:54 PM CDT	Special Weather Statement	SJT	Concho	66 min
May 9, 4:59 PM CDT	Severe Thunderstorm Warning	SJT	Coleman, Concho, Runnels	46 min
May 9, 5:33 PM CDT	Severe Thunderstorm Warning	SJT	Concho, Menard, Tom Green	57 min
May 9, 5:58 PM CDT	Special Weather Statement	SJT	Crockett	62 min
May 9, 6:19 PM CDT	Special Weather Statement	SJT	Brown	26 min
May 9, 6:24 PM CDT	Severe Thunderstorm Warning	SJT	McCulloch, Menard	66 min
May 9, 6:39 PM CDT	Special Weather Statement	SJT	Sutton	66 min
May 9, 6:44 PM CDT	Special Weather Statement	SJT	Concho	61 min
May 9, 6:49 PM CDT	Severe Thunderstorm Warning	SJT	Sutton	56 min
May 9, 6:54 PM CDT	Severe Thunderstorm Warning	SJT	Concho, Menard, Schleicher	66 min

Nearby

Severe Thunderstorm Warnings in Texas, 2013 Every severe thunderstorm warning in 2013

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.