Alert archive / Texas / Severe Thunderstorm Warnings in 2015

Severe Thunderstorm Warning 156, NWS San Angelo, TX

May 9, 2015Irion County, Sterling County, Tom Green County, Texas

NWS San Angelo, TX issued this severe thunderstorm warning at May 9, 2015, 11:49 PM CDT for Irion County, Sterling County, Tom Green County, Texas. It was in force for 41 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, 2015, 11:49 PM CDT (04:49 UTC)
Expired: May 10, 2015, 12:30 AM CDT
In force: 41 min
Issued by: NWS San Angelo, TX
Area: Storm-based polygon
Hail: 1.25 in
Wind: 50.0 mph

Counties Irion County, TX, Sterling County, TX, Tom Green County, TX

The radar

The San Angelo radar (KSJT), 36 km from the middle of the area, began a volume at 04:48 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, 10:51 PM CDT	Severe Thunderstorm Watch	SPC	10 hr

The nearest sounding before it

Midland Regional, TX (KMAF), launched 00:00Z, 4.8 hours before the alert went out and 138 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 3886 m above ground
0-6 km bulk shear: 51 kt
0-1 km storm-relative helicity: 13 m²/s²
0-3 km storm-relative helicity: 44 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, 6:35 PM CDT, 5 hours 14 minutes earlier.

Area forecast discussion, May 9, 6:35 PM CDT, 5 hours 14 minutes before

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Hazardous weather outlook, May 9, 2:43 PM CDT, 9 hours 6 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE SAN ANGELO TX
243 PM CDT SAT MAY 9 2015

TXZ049-054-064>066-071>073-076>078-098-099-113-114-127-128-139-
140-154-155-168>170-101945-
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-
243 PM CDT SAT MAY 9 2015

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

.DAY ONE...THIS AFTERNOON AND TONIGHT

STRONG TO SEVERE THUNDERSTORMS WILL BE POSSIBLE ACROSS MAINLY THE
EASTERN BIG COUNTRY AND HEARTLAND THIS AFTERNOON AND EVENING. THE
MAIN HAZARDS WILL BE TORNADOES...LARGE HAIL...DAMAGING
WINDS...DEADLY LIGHTNING...AND FLASH FLOODING.

SHOWERS AND THUNDERSTORMS WILL BE POSSIBLE MAINLY AFTER MIDNIGHT
ACROSS ALL OF WEST CENTRAL TEXAS. THE MAIN HAZARDS WILL BE LARGE
HAIL...DAMAGING WINDS...DEADLY LIGHTNING...FLASH FLOODING AND A
FEW TORNADOES.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY

STRONG TO SEVERE THUNDERSTORMS WILL BE POSSIBLE ON SUNDAY...MAINLY EAST
OF A HASKELL...TO SAN ANGELO...TO OZONA LINE. THE MAIN HAZARDS
WILL BE LARGE HAIL...DAMAGING WINDS...A FEW TORNADOES...DEADLY
LIGHTNING...AND FLASH FLOODING.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS LIKELY.

In the hours before

Special weather statement, May 9, 8:42 PM CDT, 3 hours 7 minutes before

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Special weather statement, May 9, 9:12 PM CDT, 2 hours 37 minutes before

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Special weather statement, May 9, 10:24 PM CDT, 1 hour 25 minutes before

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Special weather statement, May 9, 11:41 PM CDT, 8 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 9, 8:42 PM CDT	Special Weather Statement	SJT	Callahan	33 min
May 9, 9:12 PM CDT	Special Weather Statement	SJT	Callahan	33 min
May 9, 10:24 PM CDT	Special Weather Statement	SJT	Coleman	36 min
May 9, 11:41 PM CDT	Special Weather Statement	SJT	Sterling	34 min
May 9, 11:58 PM CDT	Special Weather Statement	SJT	Upton	32 min
May 10, 12:13 AM CDT	Severe Thunderstorm Warning	SJT	Crockett	62 min
May 10, 12:21 AM CDT	Special Weather Statement	SJT	Coke	24 min
May 10, 12:31 AM CDT	Special Weather Statement	SJT	Irion, Sterling	29 min
May 10, 12:34 AM CDT	Special Weather Statement	SJT	Coleman	26 min
May 10, 12:40 AM CDT	Severe Thunderstorm Warning	SJT	Coke, Irion, Runnels, Sterling, Tom Green	65 min
May 10, 1:14 AM CDT	Special Weather Statement	SJT	Crockett	31 min
May 10, 1:45 AM CDT	Severe Thunderstorm Warning	SJT	Coke, Runnels, Taylor	60 min
May 10, 1:50 AM CDT	Severe Thunderstorm Warning	SJT	Crockett, Irion, Runnels, Schleicher, Tom Green	55 min
May 10, 2:03 AM CDT	Areal Flood Advisory	SJT	Crockett, Irion	3 hr
May 10, 2:07 AM CDT	Areal Flood Advisory	SJT	Tom Green	3 hr
May 10, 2:27 AM CDT	Severe Thunderstorm Warning	SJT	Concho, Menard, Runnels, Schleicher, Tom Green	48 min
May 10, 2:40 AM CDT	Special Weather Statement	SJT	Callahan	35 min
May 10, 2:45 AM CDT	Tornado Warning	SJT	Taylor	30 min
May 10, 2:53 AM CDT	Severe Thunderstorm Warning	SJT	Brown, Coleman, Concho, McCulloch	67 min
May 10, 3:07 AM CDT	Severe Thunderstorm Warning	SJT	Callahan, Shackelford	68 min
May 10, 3:08 AM CDT	Severe Thunderstorm Warning	SJT	Callahan, Shackelford	67 min
May 10, 3:20 AM CDT	Special Weather Statement	SJT	Taylor	25 min
May 10, 3:24 AM CDT	Special Weather Statement	SJT	Schleicher	36 min
May 10, 3:43 AM CDT	Special Weather Statement	SJT	Haskell	32 min
May 10, 3:47 AM CDT	Severe Thunderstorm Warning	SJT	Callahan, Jones, Shackelford, Taylor	46 min
May 10, 3:54 AM CDT	Severe Thunderstorm Warning	SJT	Brown, Coleman	38 min
May 10, 4:04 AM CDT	Special Weather Statement	SJT	Concho, Tom Green	41 min
May 10, 4:18 AM CDT	Special Weather Statement	SJT	Schleicher	42 min
May 10, 4:29 AM CDT	Areal Flood Advisory	SJT	Brown, Coleman, Runnels	2 hr
May 10, 4:53 AM CDT	Special Weather Statement	SJT	Schleicher	37 min
May 10, 5:15 AM CDT	Areal Flood Advisory	SJT	Callahan, Shackelford	90 min
May 10, 5:26 AM CDT	Severe Thunderstorm Warning	SJT	Concho, Menard, Schleicher	64 min
May 10, 5:33 AM CDT	Special Weather Statement	SJT	Brown	27 min
May 10, 5:44 AM CDT	Special Weather Statement	SJT	Coleman	46 min
May 10, 6:32 AM CDT	Special Weather Statement	SJT	Concho, McCulloch	43 min
May 10, 6:53 AM CDT	Special Weather Statement	SJT	Coleman	52 min
May 10, 7:21 AM CDT	Special Weather Statement	SJT	Concho	39 min
May 10, 7:30 AM CDT	Special Weather Statement	SJT	Brown	45 min
May 10, 8:06 AM CDT	Special Weather Statement	SJT	Coleman	24 min
May 10, 8:18 AM CDT	Special Weather Statement	SJT	Brown	27 min
May 10, 9:19 AM CDT	Areal Flood Advisory	SJT	Brown	116 min
May 10, 9:21 AM CDT	Special Weather Statement	SJT	Sutton	39 min
May 10, 9:28 AM CDT	Severe Thunderstorm Warning	SJT	Kimble, Sutton	47 min
May 10, 9:59 AM CDT	Severe Thunderstorm Warning	SJT	Kimble, Menard, Sutton	46 min
May 10, 10:24 AM CDT	Severe Thunderstorm Warning	SJT	Concho, McCulloch, Menard	51 min
May 10, 10:37 AM CDT	Severe Thunderstorm Warning	SJT	Kimble, Mason, Menard	38 min
May 10, 10:56 AM CDT	Severe Thunderstorm Warning	SJT	Brown, Coleman, McCulloch, San Saba	49 min
May 10, 11:38 AM CDT	Special Weather Statement	SJT	McCulloch	37 min
May 10, 11:40 AM CDT	Special Weather Statement	SJT	Sutton	35 min
May 10, 11:48 AM CDT	Severe Thunderstorm Warning	SJT	Brown	42 min
May 10, 12:13 PM CDT	Special Weather Statement	SJT	Kimble	32 min
May 10, 12:15 PM CDT	Severe Thunderstorm Warning	SJT	Kimble, Menard, Schleicher, Sutton	45 min
May 10, 12:27 PM CDT	Areal Flood Advisory	SJT	Brown	3 hr
May 10, 12:28 PM CDT	Severe Thunderstorm Warning	SJT	McCulloch	32 min
May 10, 12:51 PM CDT	Severe Thunderstorm Warning	SJT	Kimble, Menard	16 min
May 10, 1:01 PM CDT	Special Weather Statement	SJT	McCulloch	44 min
May 10, 1:30 PM CDT	Special Weather Statement	SJT	Brown	30 min
May 10, 1:44 PM CDT	Severe Thunderstorm Warning	SJT	Brown, San Saba	31 min
May 10, 2:13 PM CDT	Special Weather Statement	SJT	Brown	32 min
May 10, 2:26 PM CDT	Special Weather Statement	SJT	San Saba	34 min
May 10, 2:54 PM CDT	Special Weather Statement	SJT	Brown	36 min
May 10, 6:29 PM CDT	Special Weather Statement	SJT	San Saba	31 min

Nearby

Severe Thunderstorm Warnings in Texas, 2015 Every severe thunderstorm warning in 2015

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.