Alert archive / Texas / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 165, NWS San Angelo, TX

May 12, 2016Brown County, Texas

NWS San Angelo, TX issued this severe thunderstorm warning at May 12, 2016, 6:10 AM CDT for Brown County, Texas. It was in force for 50 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 12, 2016, 6:10 AM CDT (11:10 UTC)
Expired
May 12, 2016, 7:00 AM CDT
In force
50 min
Issued by
NWS San Angelo, TX
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

County Brown County, TX

The radar

The Dyess AFB radar (KDYX), 88 km from the middle of the area, began a volume at 11:09 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, 11.2 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-pSkew-T log-p diagram, Fort Worth, TX at 00:00Z on 2016-05-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2369 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Fort Worth, TX at 00:00Z on 2016-05-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 30 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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
2369 J/kg
Mixed-layer CIN
-49 J/kg
Mixed-layer LCL
1270 m above ground
0-6 km bulk shear
25 kt
0-1 km storm-relative helicity
30 m²/s²
0-3 km storm-relative helicity
117 m²/s²
Significant tornado parameter
0.4
Supercell composite
5.1

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 12, 4:02 AM CDT, 2 hours 8 minutes earlier.

Area forecast discussion, May 12, 4:02 AM CDT, 2 hours 8 minutes before
Area Forecast Discussion
National Weather Service SAN ANGELO TX
402 AM CDT THU MAY 12 2016

.SHORT TERM...
(Today and Tonight)

...Thunderstorms and Slow Moving Cold Front...

A weak cold front will continue to move slowly south across West
Central Texas today, and this boundary will serve as a focus for
continued showers and thunderstorms. Although the threat of large
hail and damaging winds will continue until around sunrise this
morning, mainly along and north of our Interstate 20 corridor,
another developing concern is high rainfall amounts and associated
flash flooding. As the low-level jet, which is currently around 40
knots from the south, weakens over the next several hours, the
severe thunderstorm and flash flood threats should also diminish.
With this surface frontal boundary lingering over our counties for
today, will continue chance PoPs. For tonight...the potential for
continued showers and thunderstorms will shift into our southern
counties, as this front slowly moves into that area.

.LONG TERM...
(Friday through Wednesday)

...Rain Potential Continues...

The upper pattern will continue to support shower and thunderstorm
development through this weekend and into the start of next week.
Another cold front will push into West Central Texas this weekend,
and that will further enhance the potential for showers and
thunderstorms. Given current model timing, will continue with the
best rain chances on Sunday. That's when this next cold front and
upper support will be best aligned over our counties.

&&

.PRELIMINARY POINT TEMPS/POPS...
Abilene 	 75  59  82  63 /  50  20  10  10
San Angelo 	 80  62  84  64 /  50  40  10  10
Junction 	 82  64  83  64 /  40  40  20  10

&&

.SJT Watches/Warnings/Advisories...
None.
&&
Hazardous weather outlook, May 12, 4:40 AM CDT, 1 hour 30 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE SAN ANGELO TX
440 AM CDT THU MAY 12 2016

TXZ049-054-064>066-071>073-076>078-098-099-113-114-127-128-139-
140-154-155-168>170-130945-
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-
440 AM CDT THU MAY 12 2016

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

.DAY ONE...TODAY AND TONIGHT

THUNDERSTORMS REMAIN IN THE FORECAST FOR TODAY AND TONIGHT.
HOWEVER...THE THREAT OF LARGE HAIL AND DAMAGING WINDS HAS
DIMINISHED. THE MAIN THUNDERSTORM THREATS FOR TODAY AND TONIGHT
ARE FLASH FLOODING AND DEADLY LIGHTNING.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

THUNDERSTORMS REMAIN IN THE FORECAST FOR FRIDAY INTO THE START OF
NEXT WEEK. THE PRIMARY WEATHER HAZARD FOR MOST OF THOSE DAYS WILL
BE DEADLY LIGHTNING. HOWEVER...THUNDERSTORMS MAY PRODUCE LARGE
DAMAGING HAIL AND DAMAGING WINDS AGAIN SATURDAY THROUGH
SUNDAY...AS ANOTHER COLD FRONT MOVES ACROSS WEST CENTRAL TEXAS.

.SPOTTER INFORMATION STATEMENT...

WE MAY NEED SPOTTERS ON SATURDAY AND AGAIN ON SUNDAY.

In the hours before

Special weather statement, May 12, 4:05 AM CDT, 2 hours 5 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SAN ANGELO TX
405 AM CDT THU MAY 12 2016

TXZ049-054-121000-
FISHER TX-NOLAN TX-
405 AM CDT THU MAY 12 2016

...SIGNIFICANT WEATHER ADVISORY FOR FISHER AND NORTHERN NOLAN
COUNTIES UNTIL 500 AM CDT...

AT 404 AM CDT...A STRONG THUNDERSTORM WAS LOCATED 8 MILES SOUTHEAST
OF SYLVESTER...OR 15 MILES NORTHEAST OF SWEETWATER...MOVING SOUTH AT
20 MPH.

DIME SIZE HAIL AND WINDS IN EXCESS OF 40 MPH WILL BE POSSIBLE WITH
THIS STORM.

THIS STORM WILL REMAIN OVER MAINLY RURAL AREAS OF FISHER AND NORTHERN
NOLAN COUNTIES...INCLUDING THE FOLLOWING LOCATIONS: LAKE SWEETWATER...
CAPITOLA...CAMP BOOTHE OAKS...HITSON...GANNON AND BUSBY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THIS STORM...AND MAY LEAD
TO FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED
ROADWAYS.

&&

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 500 AM CDT FOR
WEST CENTRAL TEXAS.

LAT...LON 3252 10014 3233 10015 3236 10066 3295 10063
      3295 10016
TIME...MOT...LOC 0904Z 347DEG 44KT 3262 10020
Special weather statement, May 12, 4:15 AM CDT, 1 hour 55 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SAN ANGELO TX
415 AM CDT THU MAY 12 2016

TXZ049-113-114-127-128-121015-
JONES TX-FISHER TX-CALLAHAN TX-TAYLOR TX-SHACKELFORD TX-
415 AM CDT THU MAY 12 2016

...SIGNIFICANT WEATHER ADVISORY FOR NORTHWESTERN CALLAHAN...NORTHERN
TAYLOR...WESTERN SHACKELFORD AND JONES COUNTIES UNTIL 515 AM CDT...

AT 413 AM CDT...A LINE OF STRONG THUNDERSTORMS WAS LOCATED FROM NEAR NOODLE
TO JUST NORTH OF HAWLEY...TO NUGENT...MOVING SOUTHEAST AT 15 MPH.

DIME SIZE HAIL AND WINDS IN EXCESS OF 40 MPH WILL BE POSSIBLE WITH
THIS STORM.

THE STRONG THUNDERSTORMS WILL BE NEAR...
  ABILENE AROUND 440 AM CDT.
  HAMBY AROUND 445 AM CDT.
  CLYDE AND POTOSI AROUND 450 AM CDT.

OTHER LOCATIONS IMPACTED BY THIS STORM INCLUDE IMPACT...HODGES...
TUXEDO...TRUBY...LAKE FORT PHANTOM HILL...AND KIRBY LAKE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THIS STORM...AND MAY LEAD
TO FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED
ROADWAYS.

&&

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 500 AM CDT FOR
WEST CENTRAL TEXAS.

LAT...LON 3233 9936 3233 10015 3294 10016 3295 9937
TIME...MOT...LOC 0913Z 335DEG 30KT 3268 9971
Local storm report, May 12, 4:52 AM CDT, 1 hour 18 minutes before
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Local storm report, May 12, 5:04 AM CDT, 1 hour 6 minutes before
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Special weather statement, May 12, 5:11 AM CDT, 59 minutes before
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Local storm report, May 12, 5:40 AM CDT, 30 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
May 11, 7:06 PM CDTSevere Thunderstorm WarningSJTCallahan, Shackelford39 min
May 11, 7:17 PM CDTSevere Thunderstorm WarningSJTCallahan, Taylor43 min
May 11, 7:18 PM CDTSevere Thunderstorm WarningSJTColeman42 min
May 11, 7:36 PM CDTSevere Thunderstorm WarningSJTJones39 min
May 11, 7:58 PM CDTSevere Thunderstorm WarningSJTCallahan, Coleman47 min
May 11, 7:59 PM CDTAreal Flood AdvisorySJTCallahan, Coleman3 hr
May 11, 8:04 PM CDTSpecial Weather StatementSJTJones26 min
May 11, 8:33 PM CDTSpecial Weather StatementSJTJones42 min
May 11, 8:38 PM CDTSevere Thunderstorm WarningSJTBrown, Callahan, Coleman52 min
May 11, 8:46 PM CDTFlash Flood WarningSJTBrown, Callahan, Coleman3 hr
May 11, 8:56 PM CDTSevere Thunderstorm WarningSJTColeman, Runnels49 min
May 11, 9:28 PM CDTSevere Thunderstorm WarningSJTBrown, Callahan, Coleman47 min
May 11, 9:44 PM CDTSevere Thunderstorm WarningSJTCallahan, Coleman, Taylor46 min
May 11, 10:12 PM CDTSpecial Weather StatementSJTRunnels33 min
May 11, 10:24 PM CDTSevere Thunderstorm WarningSJTBrown, Coleman66 min
May 11, 10:27 PM CDTSevere Thunderstorm WarningSJTJones, Shackelford48 min
May 11, 11:00 PM CDTSevere Thunderstorm WarningSJTCallahan, Jones, Shackelford, Taylor45 min
May 11, 11:30 PM CDTSpecial Weather StatementSJTBrown45 min
May 11, 11:39 PM CDTSevere Thunderstorm WarningSJTFisher, Jones, Taylor51 min
May 12, 12:19 AM CDTSevere Thunderstorm WarningSJTCallahan, Jones, Shackelford, Taylor56 min
May 12, 12:32 AM CDTAreal Flood AdvisorySJTCallahan, Jones, Shackelford, Taylor3 hr
May 12, 1:02 AM CDTSevere Thunderstorm WarningSJTTaylor43 min
May 12, 1:05 AM CDTSevere Thunderstorm WarningSJTCallahan40 min
May 12, 1:37 AM CDTSevere Thunderstorm WarningSJTTaylor38 min
May 12, 1:39 AM CDTSevere Thunderstorm WarningSJTCallahan51 min
May 12, 2:06 AM CDTSpecial Weather StatementSJTJones39 min
May 12, 2:16 AM CDTSevere Thunderstorm WarningSJTFisher, Haskell, Jones59 min
May 12, 2:24 AM CDTSevere Thunderstorm WarningSJTCallahan36 min
May 12, 3:02 AM CDTFlash Flood WarningSJTFisher, Haskell, Jones3 hr
May 12, 3:19 AM CDTSpecial Weather StatementSJTJones56 min
May 12, 3:23 AM CDTSpecial Weather StatementSJTBrown52 min
May 12, 3:47 AM CDTSevere Thunderstorm WarningSJTJones33 min
May 12, 4:05 AM CDTSpecial Weather StatementSJTFisher55 min
May 12, 4:15 AM CDTSpecial Weather StatementSJTJones60 min
May 12, 4:44 AM CDTFlash Flood WarningSJTCallahan, Jones, Shackelford, Taylor5 hr
May 12, 5:01 AM CDTSevere Thunderstorm WarningSJTCallahan44 min
May 12, 5:11 AM CDTSpecial Weather StatementSJTNolan49 min
May 12, 5:48 AM CDTSevere Thunderstorm WarningSJTCallahan42 min
May 12, 6:58 AM CDTSpecial Weather StatementSJTBrown47 min
May 12, 9:11 AM CDTSpecial Weather StatementSJTLlano34 min

Nearby

Severe Thunderstorm Warnings in Texas, 2016Every severe thunderstorm warning in 2016

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.