Alert archive / Texas / Severe Thunderstorm Warnings in 2015

Severe Thunderstorm Warning 221, NWS San Angelo, TX

May 19, 2015Callahan County, Texas

NWS San Angelo, TX issued this severe thunderstorm warning at May 19, 2015, 5:16 PM CDT for Callahan County, Texas. It was in force for 59 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 19, 2015, 5:16 PM CDT (22:16 UTC)
Expired: May 19, 2015, 6:15 PM CDT
In force: 59 min
Issued by: NWS San Angelo, TX
Area: Storm-based polygon
Hail: 1.25 in
Wind: 60.0 mph

County Callahan County, TX

The radar

The Dyess AFB radar (KDYX), 29 km from the middle of the area, began a volume at 22:16 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, 10.3 hours before the alert went out and 204 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: 1766 J/kg
Mixed-layer CIN: -13 J/kg
Mixed-layer LCL: 551 m above ground
0-6 km bulk shear: 15 kt
0-1 km storm-relative helicity: 42 m²/s²
0-3 km storm-relative helicity: 87 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 19, 3:53 PM CDT, 1 hour 23 minutes earlier.

Area forecast discussion, May 19, 3:53 PM CDT, 1 hour 23 minutes before

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Hazardous weather outlook, May 19, 3:20 PM CDT, 1 hour 56 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE SAN ANGELO TX
320 PM CDT TUE MAY 19 2015

TXZ049-054-064>066-071>073-076>078-098-099-113-114-127-128-139-
140-154-155-168>170-202030-
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-
320 PM CDT TUE MAY 19 2015

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

.DAY ONE...THIS AFTERNOON AND TONIGHT

A FLASH FLOOD WATCH HAS BEEN EXTENDED TO 10 PM CDT. AREAS ALONG
AND NORTH OF A MERTZON...SAN ANGELO...SAN SABA LINE HAVE THE
POTENTIAL FOR LOCALIZED HEAVY RAINFALL AND FLOODING ON ALREADY
SATURATED SOILS.

THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS OVER MUCH OF WEST
CENTRAL TEXAS THIS AFTERNOON AND EVENING. THE BEST AREA FOR
DEVELOPMENT IS ALONG AND NORTHWEST OF AN OZONA...MERTZON...BALLINGER
TO CROSS PLAINS LINE. LARGE HAIL AND DAMAGING WINDS ARE POSSIBLE.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY

THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS WEDNESDAY OVER
MUCH OF WEST CENTRAL TEXAS. THE MAIN THREATS ARE LARGE
HAIL...DAMAGING WINDS...AND LOCALIZED FLOODING.

ISOLATED TO SCATTERED SHOWERS AND THUNDERSTORMS WILL CONTINUE INTO
NEXT WEEK. WHILE A FEW SEVERE THUNDERSTORMS ARE POSSIBLE EACH DAY
WITH LARGE HAIL AND DAMAGING WINDS...THE MAIN THREAT WILL BE
LOCALIZED FLOODING.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NEED THIS AFTERNOON OR EVENING.

In the hours before

Special weather statement, May 19, 4:04 PM CDT, 1 hour 12 minutes before

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Special weather statement, May 19, 4:27 PM CDT, 49 minutes before

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Special weather statement, May 19, 5:04 PM CDT, 12 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 18, 7:17 PM CDT	Special Weather Statement	SJT	San Saba	28 min
May 18, 7:27 PM CDT	Severe Thunderstorm Warning	SJT	Crockett	48 min
May 18, 7:56 PM CDT	Special Weather Statement	SJT	Schleicher	34 min
May 18, 8:04 PM CDT	Severe Thunderstorm Warning	SJT	Crockett, Irion, Schleicher, Tom Green	41 min
May 18, 8:13 PM CDT	Special Weather Statement	SJT	Mason	32 min
May 18, 8:37 PM CDT	Severe Thunderstorm Warning	SJT	McCulloch, Mason, Menard	38 min
May 18, 8:45 PM CDT	Severe Thunderstorm Warning	SJT	Irion, Tom Green	45 min
May 18, 9:07 PM CDT	Special Weather Statement	SJT	Concho	23 min
May 18, 9:13 PM CDT	Severe Thunderstorm Warning	SJT	Concho, McCulloch, Menard	47 min
May 18, 9:26 PM CDT	Special Weather Statement	SJT	Irion, Sterling, Tom Green	34 min
May 18, 9:58 PM CDT	Special Weather Statement	SJT	Menard	32 min
May 18, 10:03 PM CDT	Special Weather Statement	SJT	Coke, Tom Green	27 min
May 18, 10:15 PM CDT	Areal Flood Advisory	SJT	Concho, Menard	90 min
May 18, 10:29 PM CDT	Areal Flood Advisory	SJT	Tom Green	2 hr
May 18, 10:47 PM CDT	Areal Flood Advisory	SJT	Coke, Nolan, Tom Green	118 min
May 18, 10:54 PM CDT	Flash Flood Warning	SJT	Tom Green	3 hr
May 18, 11:06 PM CDT	Special Weather Statement	SJT	Tom Green	24 min
May 18, 11:13 PM CDT	Severe Thunderstorm Warning	SJT	Tom Green	47 min
May 18, 11:41 PM CDT	Special Weather Statement	SJT	Upton	34 min
May 19, 12:07 AM CDT	Special Weather Statement	SJT	Tom Green	23 min
May 19, 12:14 AM CDT	Severe Thunderstorm Warning	SJT	Runnels, Tom Green	46 min
May 19, 12:20 AM CDT	Severe Thunderstorm Warning	SJT	Crockett	40 min
May 19, 12:34 AM CDT	Flash Flood Warning	SJT	Tom Green	3 hr
May 19, 12:51 AM CDT	Special Weather Statement	SJT	Irion	24 min
May 19, 12:53 AM CDT	Severe Thunderstorm Warning	SJT	Crockett	67 min
May 19, 1:00 AM CDT	Severe Thunderstorm Warning	SJT	Tom Green	30 min
May 19, 1:50 AM CDT	Severe Thunderstorm Warning	SJT	Crockett, Irion	55 min
May 19, 2:27 AM CDT	Flash Flood Warning	SJT	Coke, Sterling, Tom Green	3 hr
May 19, 2:29 AM CDT	Severe Thunderstorm Warning	SJT	Crockett, Irion, Schleicher	46 min
May 19, 2:41 AM CDT	Severe Thunderstorm Warning	SJT	Coke, Irion, Sterling, Tom Green	49 min
May 19, 3:13 AM CDT	Severe Thunderstorm Warning	SJT	Irion, Schleicher, Tom Green	47 min
May 19, 3:25 AM CDT	Areal Flood Advisory	SJT	Irion	2 hr
May 19, 3:27 AM CDT	Areal Flood Advisory	SJT	Irion	2 hr
May 19, 3:33 AM CDT	Flash Flood Warning	SJT	Tom Green	3 hr
May 19, 3:56 AM CDT	Special Weather Statement	SJT	Schleicher, Tom Green	49 min
May 19, 4:19 AM CDT	Areal Flood Advisory	SJT	Nolan	116 min
May 19, 4:28 AM CDT	Special Weather Statement	SJT	Schleicher	32 min
May 19, 5:29 AM CDT	Areal Flood Advisory	SJT	Menard, Schleicher	91 min
May 19, 5:31 AM CDT	Special Weather Statement	SJT	Menard	29 min
May 19, 6:28 AM CDT	Areal Flood Advisory	SJT	Menard	92 min
May 19, 6:30 AM CDT	River Flood Warning	SJT	Tom Green	25 hr
May 19, 6:35 AM CDT	River Flood Warning	SJT	Irion, Tom Green	20 hr
May 19, 4:04 PM CDT	Special Weather Statement	SJT	Throckmorton	26 min
May 19, 4:27 PM CDT	Special Weather Statement	SJT	Throckmorton	63 min
May 19, 5:04 PM CDT	Special Weather Statement	SJT	Callahan	56 min
May 19, 5:31 PM CDT	Severe Thunderstorm Warning	SJT	Callahan, Coleman	29 min
May 19, 5:38 PM CDT	Severe Thunderstorm Warning	SJT	Callahan, Coleman, Runnels, Taylor	22 min
May 19, 6:03 PM CDT	Severe Thunderstorm Warning	SJT	Brown, Callahan, Coleman	57 min
May 19, 6:28 PM CDT	Severe Thunderstorm Warning	SJT	Callahan	62 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.