Alert archive / Texas / Severe Thunderstorm Warnings in 2013

Severe Thunderstorm Warning 81, NWS San Angelo, TX

May 9, 2013Brown County, Texas

NWS San Angelo, TX issued this severe thunderstorm warning at May 9, 2013, 8:56 AM CDT for Brown County, Texas. It was in force for 49 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, 8:56 AM CDT (13:56 UTC)
Expired: May 9, 2013, 9:45 AM CDT
In force: 49 min
Issued by: NWS San Angelo, TX
Area: Storm-based polygon

County Brown County, TX

The radar

The Dyess AFB radar (KDYX), 88 km from the middle of the area, began a volume at 13:59 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

Fort Worth, TX (KFWD), launched 12:00Z, 1.9 hours before the alert went out and 199 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, 6:21 AM CDT, 2 hours 35 minutes earlier.

Area forecast discussion, May 9, 6:21 AM CDT, 2 hours 35 minutes before

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Hazardous weather outlook, May 9, 8:06 AM CDT, 50 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE SAN ANGELO TX
806 AM CDT THU MAY 9 2013

TXZ049-054-064>066-071>073-076>078-098-099-113-114-127-128-139-
140-154-155-168>170-101315-
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-
806 AM CDT THU MAY 9 2013

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

.DAY ONE...TODAY AND TONIGHT

EXPECT ISOLATED TO SCATTERED THUNDERSTORMS MAINLY THIS AFTERNOON
AND THIS EVENING. SOME THUNDERSTORMS MAY BE SEVERE. 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 EAST OF SONORA TO SAN ANGELO TO
CROSS PLAINS LINE. THE MAIN HAZARDS WILL BE LARGE HAIL...DAMAGING
WINDS...AND DANGEROUS CLOUD TO GROUND LIGHTNING.

.SPOTTER INFORMATION STATEMENT...

WE MAY NEED TO ACTIVATE SPOTTERS THIS AFTERNOON AND EVENING.

HUBER

In the hours before

Special weather statement, May 9, 6:31 AM CDT, 2 hours 25 minutes before

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Special weather statement, May 9, 7:21 AM CDT, 1 hour 35 minutes before

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Special weather statement, May 9, 8:19 AM CDT, 37 minutes before

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Special weather statement, May 9, 8:35 AM CDT, 21 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, 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, 5:39 PM CDT	Severe Thunderstorm Warning	SJT	Coleman	51 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.