Alert archive / Texas / Severe Thunderstorm Warnings in 2014

Severe Thunderstorm Warning 7, NWS San Angelo, TX

March 15, 2014Brown County, Texas

NWS San Angelo, TX issued this severe thunderstorm warning at Mar 15, 2014, 5:56 PM 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
Mar 15, 2014, 5:56 PM CDT (22:56 UTC)
Expired
Mar 15, 2014, 6:45 PM 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 22:56 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.

IssuedProductOfficeLasted
Mar 15, 2:17 PM CDTSevere Thunderstorm WatchSPC7 hr

The nearest sounding before it

Fort Worth, TX (KFWD), launched 12:00Z, 10.9 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-pSkew-T log-p diagram, Fort Worth, TX at 12:00Z on 2014-03-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 223 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 12:00Z on 2014-03-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 47 square meters per square second.1939587897117136Sfc1 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
223 J/kg
Mixed-layer CIN
-147 J/kg
Mixed-layer LCL
569 m above ground
0-6 km bulk shear
43 kt
0-1 km storm-relative helicity
47 m²/s²
0-3 km storm-relative helicity
-24 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 Mar 15, 3:48 PM CDT, 2 hours 8 minutes earlier.

Area forecast discussion, Mar 15, 3:48 PM CDT, 2 hours 8 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN ANGELO TX
348 PM CDT SAT MAR 15 2014

.SHORT TERM...
(Tonight and Tomorrow)

Showers and thunderstorms are ongoing across mainly the eastern half
of the area this afternoon, with a surface trough/dryline moving
into the western parts of the region. So far, mostly heavy rainfall
has been reported, but the potential remains for a few storms
producing gusty winds or hail, and a severe thunderstorms watch is
in effect that includes Brown, Callahan and Coleman counties.
Additional showers and thunderstorms have developed along the actual
dryline/surface trough over the Western Big Country. I expect most
of this activity to move east of the area shortly after 00z.

A cold front will move through the area after midnight, with north
winds increasing to 25 to 30 mph, with gusts to 45 mph. We have gone
ahead and issued a wind advisory for the entire area from 06z
through 21z. Although the southern counties may remain just below
criteria, they will be close enough and may reach it in gusts, so we
went ahead and included them. The next upper level trough/low will
dive south across West Texas, then across our area on Sunday. Models
are more pessimistic in terms of rain chances, with most rainfall
remaining south and west of the region. For now, I have trended PoPs
down, with the highest PoPs across the southern counties. In
addition, less cloud cover/precipitation will likely allow
temperatures to climb a bit more than previously forecast. I have
trended temperatures up a bit, with highs generally in the lower to
mid 50s.

Daniels

.LONG TERM...
(Sunday Night)

If the center of the upper low moves south of our area, as the NAM
indicates, our southern counties may have lingering light rain.
Thus, continuing PoPs for our southeastern counties until 06Z looks
reasonable. Low PoPs of 20 percent reflect my low confidence. North
surface winds will continue; however, they'll diminish during the
evening hours.

Huber

(Monday through Saturday)

For the remainder of the long term, conditions look dry. The upper
level pattern become more zonal, and a warming trend begins.
Afternoon highs on Tuesday will be back in the 80s. Then, another
cold front will move south across West Central Texas and bring gusty
north winds and cooler temperatures for Wednesday. Following that
front, another warming trend will produce afternoon highs on Friday
in the 75 to 80 range. Then, the GFS brings another front across
West Central Texas Friday night and Saturday, when afternoon highs
will be closer to seasonal normals.

Huber

&&

.PRELIMINARY POINT TEMPS/POPS...
Abilene 	 43  52  31  66  45 /  30  30  10   5   0
San Angelo 	 46  55  34  69  45 /  20  30  10   5   0
Junction 	 47  54  35  69  41 /  10  30  20   5   0

&&

.SJT WATCHES/WARNINGS/ADVISORIES...
WIND ADVISORY from 1 AM to 4 PM CDT Sunday FOR THE FOLLOWING
ZONES: Brown...Callahan...Coke...Coleman...Concho...Crockett...
Fisher...Haskell...Irion...Jones...Kimble...Mason...McCulloch...
Menard...Nolan...Runnels...San Saba...Schleicher...Shackelford...
Sterling...Sutton...Taylor...Throckmorton...Tom Green.

&&

Daniels/Huber
Hazardous weather outlook, Mar 15, 3:07 PM CDT, 2 hours 49 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE SAN ANGELO TX
307 PM CDT SAT MAR 15 2014

TXZ049-054-064>066-071>073-076>078-098-099-113-114-127-128-139-
140-154-155-168>170-162015-
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-
307 PM CDT SAT MAR 15 2014

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

.DAY ONE...THIS AFTERNOON AND TONIGHT

ISOLATED THUNDERSTORMS WILL BE POSSIBLE ALONG AND NORTH OF A
ROBERT LEE...TO WINTERS...TO BROWNWOOD LINE. A FEW STORMS MAY BE
SEVERE...WITH HAIL UP TO GOLF BALL SIZED THE MAIN HAZARD.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY

A COLD FRONT WILL MOVE THROUGH TONIGHT BRINGING STRONG WINDS FOR
SUNDAY. NORTH WINDS WILL BETWEEN 25 TO 30 MPH...WITH GUSTS 45 MPH
POSSIBLE.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NEED THIS AFTERNOON INTO THIS EVENING.

In the hours before

Special weather statement, Mar 15, 5:06 PM CDT, 50 minutes before
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Local storm report, Mar 15, 5:19 PM CDT, 37 minutes before
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Local storm report, Mar 15, 5:26 PM CDT, 30 minutes before
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Special weather statement, Mar 15, 5:28 PM CDT, 28 minutes before
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Local storm report, Mar 15, 5:41 PM CDT, 15 minutes before
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Local storm report, Mar 15, 5:52 PM CDT, 4 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Mar 15, 1:38 PM CDTSpecial Weather StatementSJTCallahan22 min
Mar 15, 1:43 PM CDTSpecial Weather StatementSJTShackelford32 min
Mar 15, 2:01 PM CDTSpecial Weather StatementSJTCallahan29 min
Mar 15, 2:10 PM CDTSpecial Weather StatementSJTColeman50 min
Mar 15, 2:36 PM CDTSpecial Weather StatementSJTNolan24 min
Mar 15, 2:57 PM CDTSpecial Weather StatementSJTNolan33 min
Mar 15, 3:18 PM CDTSpecial Weather StatementSJTBrown12 min
Mar 15, 3:28 PM CDTSpecial Weather StatementSJTTaylor47 min
Mar 15, 3:37 PM CDTWind AdvisorySJTBrown, Callahan, Coke, Coleman, Concho, Crockett and 18 more24 hr
Mar 15, 3:40 PM CDTSpecial Weather StatementSJTTaylor35 min
Mar 15, 3:43 PM CDTSevere Thunderstorm WarningSJTCallahan, Jones, Taylor32 min
Mar 15, 4:12 PM CDTSevere Thunderstorm WarningSJTCallahan, Jones, Shackelford, Taylor33 min
Mar 15, 4:14 PM CDTSevere Thunderstorm WarningSJTCallahan, Coleman, Runnels, Taylor46 min
Mar 15, 4:42 PM CDTSevere Thunderstorm WarningSJTCallahan, Coleman48 min
Mar 15, 4:44 PM CDTSpecial Weather StatementSJTCallahan31 min
Mar 15, 5:02 PM CDTSevere Thunderstorm WarningSJTCallahan28 min
Mar 15, 5:06 PM CDTSpecial Weather StatementSJTShackelford24 min
Mar 15, 5:23 PM CDTSevere Thunderstorm WarningSJTBrown, Coleman52 min
Mar 15, 5:28 PM CDTSpecial Weather StatementSJTBrown32 min

Nearby

Severe Thunderstorm Warnings in Texas, 2014Every severe thunderstorm warning in 2014

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.