Alert archive / Texas / Severe Thunderstorm Warnings in 2015

Severe Thunderstorm Warning 103, NWS San Angelo, TX

April 26, 2015Brown County, Coleman County, Texas

NWS San Angelo, TX issued this severe thunderstorm warning at Apr 26, 2015, 9:56 PM CDT for Brown County, Coleman 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: Apr 26, 2015, 9:56 PM CDT (02:56 UTC)
Expired: Apr 26, 2015, 10:45 PM CDT
In force: 49 min
Issued by: NWS San Angelo, TX
Area: Storm-based polygon
Tornado: Possible
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 02:58 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
Apr 26, 7:59 PM CDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Fort Worth, TX (KFWD), launched 00:00Z, 2.9 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: 1199 J/kg
Mixed-layer CIN: -82 J/kg
Mixed-layer LCL: 1646 m above ground
0-6 km bulk shear: 59 kt
0-1 km storm-relative helicity: 68 m²/s²
0-3 km storm-relative helicity: 248 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 3.3

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 Apr 26, 8:14 PM CDT, 1 hour 42 minutes earlier.

Area forecast discussion, Apr 26, 8:14 PM CDT, 1 hour 42 minutes before

AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE SAN ANGELO TX
814 PM CDT Sun Apr 26 2015

.UPDATE...
The forecast has been updated for newly issued Severe Thunderstorm
Watch #123, which covers our counties roughly along and south of
an Eldorado to Coleman to Brownwood line. Tise Watch is in effect
until 2 AM CDT. Pacific front is advancing east across some of
our western and southwestern counties. This front will continue
moving east into a more unstable environment, intersecting with
other surface boundaries. With quite favorable vertical shear, the
setup favors additional thunderstorm development.

19

&&

.PREV DISCUSSION... /ISSUED 458 PM CDT Sun Apr 26 2015/

UPDATE...
The current Tornado Watch # 119 has been extended south to include
Mcculloch and San Saba Counties. This Tornado Watch is in effect
until 8 PM. Another Tornado Watch has just been issued by the
Storm Prediction Center, for the area just east of our Big Country
and Heartland Counties.

PREV DISCUSSION... /ISSUED 133 PM CDT Sun Apr 26 2015/

SHORT TERM...
(Tonight and Tomorrow)

.There is the possibility of severe thunderstorms this afternoon
   and evening...

An upper low has closed over New Mexico early this afternoon and
will move east over the Panhandle through tonight. At the surface,
rich low level moisture has returned to most of West Central
Texas with a dryline moving slowly into the western tier of
counties.

Expect severe storms for the remainder of the afternoon and
evening as the dryline advances to the east. The best chance for
severe weather continues to be east of a Sweetwater to San Angelo
to Sonora line. The main hazards will be a few tornadoes, large
hail(larger than goofball size) and damaging winds.

Expecting a dry slot enveloping our southwestern CWA tomorrow with
a chance of thunderstorms continuing over the remainder of the
CWA.

Lows tonight will be in the mid 50s. Highs tomorrow will be in the
low to mid 70s over the northern half of the area and upper 70s
to low 80s over the southern half of the area as a frontal
boundary sags south through the area.

15

LONG TERM...
(Monday night through Sunday)

The upper-level cyclone will be moving slowly east across the
southern Plains Monday night through Tuesday. Cold temps aloft
associated with this feature will support a continued chance of
showers and thunderstorms, despite relatively weak synoptic scale
forcing for ascent over the region. Any precipitation that
develops Monday night or Tuesday should remain light, with total
precipitation amounts of less than 1/10".

Widespread cloud cover and low-level cold advection on Tuesday
will keep afternoon temperatures in the 60s areawide. With skies
clearing and winds diminishing Tuesday night, overnight lows will
be on the cool side. Wednesday morning low temperatures will be in
the 40s across most of the area, although a few low-lying areas
and river valleys could briefly touch the upper 30s. Deep-layer
northerly flow is progged to develop on the backside of the
departing shortwave trough, maintaining well below normal
temperatures through Wednesday.

Benign weather conditions are expected for the latter half of the
work-week as mid-level ridging builds over the southwest CONUS,
spreading into the Plains by Thursday. This will result in dry
weather and a warming trend. Expect afternoon temperatures in the
lower 80s by Friday. Quiet weather will continue on Saturday, with
the next chance for showers and thunderstorms on Sunday as the
ridge breaks down in advance of an approaching shortwave trough.

Johnson

&&

.PRELIMINARY POINT TEMPS/POPS...
Abilene 	 56  74  49  63  45 /  40  30  40  20   5
San Angelo 	 54  80  50  65  44 /  20  10  30  20   5
Junction 	 53  82  55  67  43 /  50  10  10  20   5

&&

.SJT WATCHES/WARNINGS/ADVISORIES...
NONE.
&&

Hazardous weather outlook, Apr 26, 1:28 PM CDT, 8 hours 28 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE SAN ANGELO TX
128 PM CDT SUN APR 26 2015

TXZ049-054-064>066-071>073-076>078-098-099-113-114-127-128-139-
140-154-155-168>170-271830-
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-
128 PM CDT SUN APR 26 2015

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

.DAY ONE...THIS AFTERNOON AND TONIGHT

SCATTERED THUNDERSTORMS WILL CONTINUE ACROSS MUCH OF WEST CENTRAL
TEXAS THIS AFTERNOON AND TONIGHT. SOME STORMS WILL BECOME
SEVERE...ALONG AND EAST OF A SWEETWATER TO SAN ANGELO TO SONORA
LINE. THE STORMS WILL BE MOST NUMEROUS AND MOST INTENSE ACROSS
THE EASTERN PORTIONS OF THE AREA DURING THIS AFTERNOON AND
EVENING...INCLUDING THE EASTERN BIG COUNTRY AND HEARTLAND. THE
STORMS WILL HAVE THE POTENTIAL OF PRODUCING A FEW
TORNADOES...HAIL LARGER THAN GOLF BALL SIZE AND DAMAGING WINDS.
DANGEROUS LIGHTNING WILL BE A THREAT FOR ANY STORM AS WELL.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY

THERE WILL BE A CHANCE OF THUNDERSTORMS ON MONDAY. THE PROBABILITY
OF WIDESPREAD HAZARDOUS WEATHER IS LOW.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT ANTICIPATED AT THIS TIME.

15

In the hours before

Special weather statement, Apr 26, 9:02 PM CDT, 54 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SAN ANGELO TX
902 PM CDT SUN APR 26 2015

TXZ128-139-140-270230-
COLEMAN TX-CALLAHAN TX-BROWN TX-
902 PM CDT SUN APR 26 2015

...SIGNIFICANT WEATHER ADVISORY EFFECTIVE UNTIL 930 PM CDT FOR
COLEMAN...CALLAHAN AND BROWN COUNTIES...

POTENTIAL STORM HAZARDS INCLUDE...
  GUSTY WINDS TO 55 MPH AND NICKEL SIZE HAIL

AT 900 PM CDT...A STRONG THUNDERSTORM WAS LOCATED 5 MILES SOUTH OF
BURKETT...OR ABOUT 14 MILES NORTHEAST OF COLEMAN...MOVING NORTHEAST
AT 35 MPH.

POTENTIAL STORM IMPACTS INCLUDE...
  SOME BROKEN TREE BRANCHES AND A FEW WEAK TREES TOPPLED...
  SCATTERED POWER OUTAGES LIKELY...
  LIGHT LOOSE OBJECTS TOPPLED...
  DANGEROUS DRIVING CONDITIONS...
  MINOR SHINGLE DAMAGE...
  ISOLATED SMALL DENTS TO VEHICLES...

THE STRONG THUNDERSTORM WILL BE NEAR...
  BURKETT BY 905 PM CDT
  BYRDS BY 910 PM CDT
  CROSS CUT BY 915 PM CDT
  CROSS PLAINS BY 925 PM CDT

LAT...LON 3179 9903 3185 9942 3222 9917 3220 9911
      3208 9911 3208 9893 3206 9890 3203 9888
      3202 9888
TIME...MOT...LOC 0202Z 217DEG 28KT 3194 9921

Special weather statement, Apr 26, 9:18 PM CDT, 38 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SAN ANGELO TX
918 PM CDT SUN APR 26 2015

TXZ066-073-139-270300-
RUNNELS TX-COLEMAN TX-CONCHO TX-
918 PM CDT SUN APR 26 2015

...SIGNIFICANT WEATHER ADVISORY EFFECTIVE UNTIL 1000 PM CDT FOR
RUNNELS...COLEMAN AND CONCHO COUNTIES...

POTENTIAL STORM HAZARDS INCLUDE...
  GUSTY WINDS TO 50 MPH AND NICKEL SIZE HAIL

AT 916 PM CDT...A STRONG THUNDERSTORM WAS LOCATED 3 MILES WEST OF
PAINT ROCK...MOVING NORTHEAST AT 50 MPH.

POTENTIAL STORM IMPACTS INCLUDE...
  SOME BROKEN TREE BRANCHES AND A FEW WEAK TREES TOPPLED...
  SCATTERED POWER OUTAGES LIKELY...
  LIGHT LOOSE OBJECTS TOPPLED...
  DANGEROUS DRIVING CONDITIONS...
  MINOR SHINGLE DAMAGE...
  ISOLATED SMALL DENTS TO VEHICLES...

THE STRONG THUNDERSTORM WILL BE NEAR...
  THE INTERSECTION OF RANCH ROAD 1929 AND RANCH ROAD 2134 BY 930 PM
  CDT
  IVIE RESERVOIR NEAR CONCHO PARK MARINA AND LEADAY BY 935 PM CDT
  TALPA AND VOSS BY 945 PM CDT
  VALERA AND FISK BY 950 PM CDT
  HORDS CREEK RESERVOIR BY 955 PM CDT
  COLEMAN BY 1000 PM CDT

LAT...LON 3146 9953 3148 9953 3150 9957 3149 9961
      3145 9961 3140 10011 3158 10007 3189 9950
      3183 9920 3149 9920
TIME...MOT...LOC 0218Z 236DEG 44KT 3153 9996

Special weather statement, Apr 26, 9:18 PM CDT, 38 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SAN ANGELO TX
918 PM CDT SUN APR 26 2015

TXZ154-168>170-270245-
KIMBLE TX-MCCULLOCH TX-MASON TX-MENARD TX-
918 PM CDT SUN APR 26 2015

...SIGNIFICANT WEATHER ADVISORY EFFECTIVE UNTIL 945 PM CDT FOR
KIMBLE...MCCULLOCH...MASON AND MENARD COUNTIES...

POTENTIAL STORM HAZARDS INCLUDE...
  GUSTY WINDS AND HAIL

AT 916 PM CDT...A STRONG THUNDERSTORM WAS LOCATED 5 MILES SOUTHWEST
OF CAMP SOL MAYER...OR ABOUT 22 MILES WEST OF MENARD...MOVING EAST AT
45 MPH.

POTENTIAL STORM IMPACTS INCLUDE...
  SOME BROKEN TREE BRANCHES AND A FEW WEAK TREES TOPPLED...
  SCATTERED POWER OUTAGES LIKELY...
  LIGHT LOOSE OBJECTS TOPPLED...
  DANGEROUS DRIVING CONDITIONS...
  MINOR SHINGLE DAMAGE...
  ISOLATED SMALL DENTS TO VEHICLES...

THE STRONG THUNDERSTORM WILL BE NEAR...
  THE INTERSECTION OF US-83 AND RANCH ROAD 1773...THE INTERSECTION OF
  US-83 AND HIGHWAY 29...MENARD AND US-83 NEAR THE KIMBLE-MENARD
  COUNTY LINE BY 945 PM CDT

THIS INCLUDES INTERSTATE 10 BETWEEN MILE MARKERS 430 AND 457.

LAT...LON 3109 10011 3109 9938 3055 9938 3040 10011
TIME...MOT...LOC 0219Z 265DEG 41KT 3080 10010

Local storm report, Apr 26, 9:24 PM CDT, 32 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SAN ANGELO TX
924 PM CDT SUN APR 26 2015

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

0923 PM     HAIL             SONORA                  30.57N 100.64W
04/26/2015  E0.88 INCH       SUTTON             TX   TRAINED SPOTTER

&&

EVENT NUMBER SJT1500233

JD

Local storm report, Apr 26, 9:26 PM CDT, 30 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SAN ANGELO TX
926 PM CDT SUN APR 26 2015

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

0916 PM     HAIL             1 NNW SONORA            30.58N 100.65W
04/26/2015  E1.00 INCH       SUTTON             TX   PUBLIC

&&

EVENT NUMBER SJT1500234

JD

Local storm report, Apr 26, 9:34 PM CDT, 22 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SAN ANGELO TX
934 PM CDT SUN APR 26 2015

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

0934 PM     HAIL             1 WNW LIVE OAK          31.15N  99.95W
04/26/2015  E0.75 INCH       CONCHO             TX   TRAINED SPOTTER

&&

EVENT NUMBER SJT1500235

JD

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 26, 8:12 PM CDT	Special Weather Statement	SJT	Schleicher	63 min
Apr 26, 8:22 PM CDT	Special Weather Statement	SJT	Tom Green	23 min
Apr 26, 8:43 PM CDT	Special Weather Statement	SJT	Sutton	32 min
Apr 26, 8:46 PM CDT	Severe Thunderstorm Warning	SJT	Schleicher, Sutton	44 min
Apr 26, 8:51 PM CDT	Severe Thunderstorm Warning	SJT	Concho, Tom Green	54 min
Apr 26, 9:02 PM CDT	Special Weather Statement	SJT	Coleman	28 min
Apr 26, 9:08 PM CDT	Severe Thunderstorm Warning	SJT	Brown, Callahan, Coleman	52 min
Apr 26, 9:18 PM CDT	Special Weather Statement	SJT	Runnels	42 min
Apr 26, 9:38 PM CDT	Severe Thunderstorm Warning	SJT	Coleman, Concho, Kimble, McCulloch, Menard, San Saba and 2 more	52 min
Apr 26, 10:01 PM CDT	Areal Flood Advisory	SJT	Brown, Coleman	89 min
Apr 26, 10:22 PM CDT	Tornado Warning	SJT	Kimble, Menard	38 min
Apr 26, 10:28 PM CDT	Severe Thunderstorm Warning	SJT	Kimble, McCulloch, Mason, Menard, San Saba, Sutton	62 min
Apr 26, 10:53 PM CDT	Special Weather Statement	SJT	Callahan	37 min
Apr 26, 11:27 PM CDT	Special Weather Statement	SJT	Mason	33 min
Apr 26, 11:35 PM CDT	Special Weather Statement	SJT	San Saba	25 min
Apr 27, 6:11 PM CDT	Severe Thunderstorm Warning	SJT	Brown	49 min
Apr 27, 6:14 PM CDT	Severe Thunderstorm Warning	SJT	Brown	46 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.