Alert archive / Texas / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 277, NWS San Angelo, TX

September 16, 20164 counties in Texas

NWS San Angelo, TX issued this severe thunderstorm warning at Sep 16, 2016, 7:02 PM CDT for 4 counties in Texas. It was in force for 43 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
Sep 16, 2016, 7:02 PM CDT (00:02 UTC)
Expired
Sep 16, 2016, 7:45 PM CDT
In force
43 min
Issued by
NWS San Angelo, TX
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Coke County, TX, Nolan County, TX, Sterling County, TX, Tom Green County, TX

The radar

The San Angelo radar (KSJT), 55 km from the middle of the area, began a volume at 00:03 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
Sep 16, 4:34 PM CDTSevere Thunderstorm WatchSPC5 hr

The nearest sounding before it

Midland Regional, TX (KMAF), launched 00:00Z, 0.0 hours before the alert went out and 150 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, Midland Regional, TX at 00:00Z on 2016-09-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1046 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, Midland Regional, TX at 00:00Z on 2016-09-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 19 square meters per square second.19395878Sfc1 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
1046 J/kg
Mixed-layer CIN
-147 J/kg
Mixed-layer LCL
1108 m above ground
0-6 km bulk shear
39 kt
0-1 km storm-relative helicity
19 m²/s²
0-3 km storm-relative helicity
146 m²/s²
Significant tornado parameter
0.3
Supercell composite
7.2

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 Sep 16, 6:54 PM CDT, 8 minutes earlier.

Area forecast discussion, Sep 16, 6:54 PM CDT, 8 minutes before
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Hazardous weather outlook, Sep 16, 3:01 PM CDT, 4 hours 1 minute before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE SAN ANGELO TX
301 PM CDT FRI SEP 16 2016

TXZ049-054-064>066-071>073-076>078-098-099-113-114-127-128-139-
140-154-155-168>170-172015-
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-
301 PM CDT FRI SEP 16 2016

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

.DAY ONE...THIS AFTERNOON AND TONIGHT

SCATTERED THUNDERSTORMS WILL REDEVELOP THIS AFTERNOON ACROSS
PORTIONS OF WEST CENTRAL TEXAS. THESE STORMS WILL BE CAPABLE OF
PRODUCING DANGEROUS CLOUD TO GROUND LIGHTNING AND LOCALLY HEAVY
RAINFALL. THIS RAINFALL MAY CAUSE LOCALIZED FLOODING OF LOW LYING
AND POOR DRAINAGE AREAS.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY

SCATTERED STORMS WILL CONTINUE INTO SATURDAY AND SUNDAY...WITH
DANGEROUS LIGHTNING AND HEAVY RAINFALL CONTINUING TO BE THE
PRIMARY THREATS. DRY CONDITIONS WILL RETURN FOR EARLY NEXT WEEK.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT ANTICIPATED AT THIS TIME.

In the hours before

Special weather statement, Sep 16, 5:05 PM CDT, 1 hour 57 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SAN ANGELO TX
505 PM CDT FRI SEP 16 2016

TXZ049-113-127-162245-
JONES TX-FISHER TX-TAYLOR TX-
505 PM CDT FRI SEP 16 2016

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN FISHER...
NORTHWESTERN TAYLOR AND SOUTHWESTERN JONES COUNTIES UNTIL 545 PM
CDT...

AT 504 PM CDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM OVER
SYLVESTER...OR 12 MILES SOUTHWEST OF HAMLIN...MOVING EAST AT 35 MPH.

NICKEL SIZE HAIL AND WIND GUSTS OF 50 TO 55 MPH WILL BE POSSIBLE WITH
THIS STORM.

THIS STRONG THUNDERSTORM WILL BE NEAR...
  NOODLE AROUND 530 PM CDT.

OTHER LOCATIONS IMPACTED BY THIS STORM INCLUDE THE INTERSECTION OF
US-180 AND RANCH ROAD 126 AND TRUBY.

THIS INCLUDES INTERSTATE 20 BETWEEN MILE MARKERS 262 AND 268.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT FOR
WEST CENTRAL TEXAS.

LAT...LON 3270 9984 3244 10005 3251 10015 3252 10015
      3253 10018 3267 10039 3284 10032
TIME...MOT...LOC 2204Z 288DEG 33KT 3274 10026

MC
Special weather statement, Sep 16, 5:53 PM CDT, 1 hour 9 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SAN ANGELO TX
553 PM CDT FRI SEP 16 2016

TXZ113-114-162345-
JONES TX-SHACKELFORD TX-
553 PM CDT FRI SEP 16 2016

...SIGNIFICANT WEATHER ADVISORY FOR NORTHWESTERN SHACKELFORD AND
NORTHEASTERN JONES COUNTIES UNTIL 645 PM CDT...

AT 552 PM CDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM NEAR
AVOCA...OR 7 MILES SOUTH OF STAMFORD...MOVING EAST AT 20 MPH.

DIME SIZE HAIL AND WIND GUSTS OF 50 TO 55 MPH WILL BE POSSIBLE WITH
THIS STORM.

THIS STRONG THUNDERSTORM WILL BE NEAR...
  AVOCA AROUND 605 PM CDT.
  LUEDERS AROUND 620 PM CDT.

OTHER LOCATIONS IMPACTED BY THIS STORM INCLUDE FUNSTON...THE
INTERSECTION OF US-
180 AND FARM ROAD 600 AND BIG COUNTRY BAPTIST ASSEMBLY.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT FOR
WEST CENTRAL TEXAS.

LAT...LON 3273 9990 3293 9984 3293 9945 3267 9950
TIME...MOT...LOC 2252Z 271DEG 17KT 3283 9978

MC
Special weather statement, Sep 16, 6:46 PM CDT, 16 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Sep 16, 7:16 PM CDTSpecial Weather StatementSJTCallahan, Shackelford, Taylor44 min
Sep 16, 7:40 PM CDTSpecial Weather StatementSJTRunnels50 min
Sep 16, 7:59 PM CDTSpecial Weather StatementSJTCallahan46 min
Sep 16, 8:06 PM CDTSpecial Weather StatementSJTTom Green39 min
Sep 16, 8:54 PM CDTSpecial Weather StatementSJTTom Green51 min
Sep 16, 9:05 PM CDTSpecial Weather StatementSJTTom Green40 min
Sep 16, 9:24 PM CDTAreal Flood AdvisorySJTCoke, Runnels, Sterling, Tom Green3 hr
Sep 16, 9:50 PM CDTSpecial Weather StatementSJTTom Green40 min
Sep 16, 10:27 PM CDTSpecial Weather StatementSJTConcho48 min
Sep 16, 11:01 PM CDTAreal Flood AdvisorySJTConcho119 min
Sep 16, 11:19 PM CDTSpecial Weather StatementSJTMcCulloch41 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.