Alert archive / Texas / Severe Thunderstorm Warnings in 2015

Severe Thunderstorm Warning 142, NWS San Angelo, TX

May 7, 2015Brown County, Coleman County, Texas

NWS San Angelo, TX issued this severe thunderstorm warning at May 7, 2015, 10:37 PM CDT for Brown County, Coleman County, Texas. It was in force for 38 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 7, 2015, 10:37 PM CDT (03:37 UTC)
Expired: May 7, 2015, 11:15 PM CDT
In force: 38 min
Issued by: NWS San Angelo, TX
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Brown County, TX, Coleman County, TX

The radar

The Dyess AFB radar (KDYX), 85 km from the middle of the area, began a volume at 03:37 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 00:00Z, 3.6 hours before the alert went out and 217 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: 1673 J/kg
Mixed-layer CIN: -7 J/kg
Mixed-layer LCL: 942 m above ground
0-6 km bulk shear: 75 kt
0-1 km storm-relative helicity: 249 m²/s²
0-3 km storm-relative helicity: 380 m²/s²
Significant tornado parameter: 4.1
Supercell composite: 18.6

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 7, 6:34 PM CDT, 4 hours 3 minutes earlier.

Area forecast discussion, May 7, 6:34 PM CDT, 4 hours 3 minutes before

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Hazardous weather outlook, May 7, 3:36 PM CDT, 7 hours 1 minute before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE SAN ANGELO TX
336 PM CDT THU MAY 7 2015

TXZ049-054-064>066-071>073-076>078-098-099-113-114-127-128-139-
140-154-155-168>170-082045-
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-
336 PM CDT THU MAY 7 2015

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

.DAY ONE...THIS AFTERNOON AND TONIGHT

ISOLATED TO SCATTERED SEVERE THUNDERSTORMS WILL BE POSSIBLE THIS
AFTERNOON AND EVENING ACROSS WEST CENTRAL TEXAS. THE GREATEST
THREAT FOR SEVERE STORMS WILL EXIST NORTH OF A STERLING CITY
TO SAN ANGELO TO BRADY LINE. SEVERE WEATHER THREATS INCLUDE HAIL
LARGER THAN GOLF BALLS...DAMAGING WINDS AND ISOLATED TORNADOES.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

ORGANIZED SEVERE WEATHER IS POSSIBLE FRIDAY AND AGAIN ON SATURDAY.
SEVERE WEATHER THREATS INCLUDE DAMAGING WINDS...VERY LARGE
HAIL...TORNADOES AND LOCALIZED FLOODING.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NEEDED LATE THIS AFTERNOON
AND EVENING. SPOTTER ACTIVATION IS LIKELY FRIDAY AND SATURDAY.

24

In the hours before

Local storm report, May 7, 9:54 PM CDT, 43 minutes before

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Local storm report, May 7, 10:00 PM CDT, 37 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SAN ANGELO TX
1000 PM CDT THU MAY 07 2015

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0947 PM     HAIL             3 E MAY                 31.98N  98.87W
05/07/2015  E1.00 INCH       BROWN              TX   FIRE DEPT/RESCUE

&&

EVENT NUMBER SJT1500304

DOLL

Local storm report, May 7, 10:05 PM CDT, 32 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SAN ANGELO TX
1005 PM CDT THU MAY 07 2015

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0947 PM     HAIL             3 S MAY                 31.94N  98.92W
05/07/2015  E2.75 INCH       BROWN              TX   LAW ENFORCEMENT

&&

EVENT NUMBER SJT1500305

DOLL

Local storm report, May 7, 10:18 PM CDT, 19 minutes before

PRELIMINARY LOCAL STORM REPORT...CORRECTED
NATIONAL WEATHER SERVICE SAN ANGELO TX
1018 PM CDT THU MAY 07 2015

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0930 PM     HAIL             6 WNW MAY               32.02N  99.02W
05/07/2015  E4.50 INCH       BROWN              TX   FIRE DEPT/RESCUE

&&

CORRECTED REMARKS

EVENT NUMBER SJT1500302

DOLL

Local storm report, May 7, 10:20 PM CDT, 17 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SAN ANGELO TX
1020 PM CDT THU MAY 07 2015

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0952 PM     HAIL             5 SE MAY                31.93N  98.86W
05/07/2015  E1.75 INCH       BROWN              TX   TRAINED SPOTTER

&&

EVENT NUMBER SJT1500306

DOLL

Special weather statement, May 7, 10:30 PM CDT, 7 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SAN ANGELO TX
1030 PM CDT THU MAY 7 2015

TXZ139-140-080400-
COLEMAN TX-BROWN TX-
1030 PM CDT THU MAY 7 2015

...SIGNIFICANT WEATHER ADVISORY EFFECTIVE UNTIL 1100 PM CDT FOR
COLEMAN AND BROWN COUNTIES...

POTENTIAL STORM HAZARDS INCLUDE...
  GUSTY WINDS AND HAIL

AT 1026 PM CDT...A LINE OF STRONG THUNDERSTORMS WAS LOCATED ALONG A
LINE EXTENDING FROM 8 MILES NORTH OF MAY TO 5 MILES WEST OF
ECHO...MOVING EAST AT 20 MPH.

POTENTIAL STORM IMPACTS INCLUDE...
  SOME BROKEN TREE BRANCHES...
  ISOLATED POWER OUTAGES LIKELY...
  A FEW LOOSE OBJECTS TOPPLED...

STRONG THUNDERSTORMS WILL BE NEAR...
  ECHO BY 1040 PM CDT
  MAY...GROSVENOR AND BYRDS BY 1100 PM CDT

LAT...LON 3184 9945 3208 9949 3208 9893 3186 9877
      3185 9877
TIME...MOT...LOC 0329Z 260DEG 16KT 3209 9888 3193 9938

JOHNSON

The office that day

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

Issued	Product	Office	Counties	Lasted
May 7, 7:15 PM CDT	Special Weather Statement	SJT	Callahan	30 min
May 7, 7:32 PM CDT	Special Weather Statement	SJT	Callahan, Shackelford	28 min
May 7, 7:42 PM CDT	Severe Thunderstorm Warning	SJT	Callahan, Shackelford	48 min
May 7, 8:18 PM CDT	Severe Thunderstorm Warning	SJT	Callahan, Coleman	42 min
May 7, 8:48 PM CDT	Severe Thunderstorm Warning	SJT	Brown, Callahan, Coleman	57 min
May 7, 9:37 PM CDT	Severe Thunderstorm Warning	SJT	Brown	53 min
May 7, 10:30 PM CDT	Special Weather Statement	SJT	Coleman	30 min
May 7, 10:34 PM CDT	Areal Flood Advisory	SJT	Brown	116 min
May 7, 11:11 PM CDT	Severe Thunderstorm Warning	SJT	Brown, Coleman	64 min
May 7, 11:30 PM CDT	Flash Flood Warning	SJT	Brown, Coleman	3 hr
May 8, 12:11 AM CDT	Severe Thunderstorm Warning	SJT	Brown	44 min
May 8, 12:40 AM CDT	Areal Flood Advisory	SJT	Brown	95 min
May 8, 3:09 PM CDT	Special Weather Statement	SJT	Upton	36 min
May 8, 5:08 PM CDT	Tornado Warning	SJT	Haskell	52 min
May 8, 5:55 PM CDT	Tornado Warning Tornado observed	SJT	Haskell, Throckmorton	50 min
May 8, 6:19 PM CDT	Tornado Warning	SJT	Haskell, Throckmorton	41 min
May 8, 6:29 PM CDT	Areal Flood Advisory	SJT	Haskell, Throckmorton	2 hr
May 8, 6:53 PM CDT	Tornado Warning Tornado observed	SJT	Throckmorton	52 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.