Alert archive / Texas / Severe Thunderstorm Warnings in 2014

Severe Thunderstorm Warning 91, NWS Fort Worth, TX

April 21, 2014Ellis County, Texas

NWS Fort Worth, TX issued this severe thunderstorm warning at Apr 21, 2014, 6:39 PM CDT for Ellis County, Texas. It was in force for 51 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 21, 2014, 6:39 PM CDT (23:39 UTC)
Expired
Apr 21, 2014, 7:30 PM CDT
In force
51 min
Issued by
NWS Fort Worth, TX
Area
Storm-based polygon

County Ellis County, TX

The radar

The Dallas/Ft Worth radar (KFWS), 54 km from the middle of the area, began a volume at 23:43 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
Apr 21, 2:52 PM CDTSevere Thunderstorm WatchSPC7 hr

The nearest sounding before it

Fort Worth, TX (KFWD), launched 12:00Z, 11.7 hours before the alert went out and 71 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 2014-04-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 113 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 2014-04-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 206 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
113 J/kg
Mixed-layer CIN
-117 J/kg
Mixed-layer LCL
648 m above ground
0-6 km bulk shear
43 kt
0-1 km storm-relative helicity
206 m²/s²
0-3 km storm-relative helicity
201 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.2

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 Fort Worth, TX wrote its last area forecast discussion before this severe thunderstorm warning went out at Apr 21, 6:25 PM CDT, 14 minutes earlier.

Area forecast discussion, Apr 21, 6:25 PM CDT, 14 minutes before
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Hazardous weather outlook, Apr 21, 3:48 PM CDT, 2 hours 51 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE FORT WORTH TX
348 PM CDT MON APR 21 2014

TXZ091>095-100>107-115>123-129>135-141>148-156>162-174-175-221100-
MONTAGUE-COOKE-GRAYSON-FANNIN-LAMAR-YOUNG-JACK-WISE-DENTON-COLLIN-
HUNT-DELTA-HOPKINS-STEPHENS-PALO PINTO-PARKER-TARRANT-DALLAS-
ROCKWALL-KAUFMAN-VAN ZANDT-RAINS-EASTLAND-ERATH-HOOD-SOMERVELL-
JOHNSON-ELLIS-HENDERSON-COMANCHE-MILLS-HAMILTON-BOSQUE-HILL-NAVARRO-
FREESTONE-ANDERSON-LAMPASAS-CORYELL-BELL-MCLENNAN-FALLS-LIMESTONE-
LEON-MILAM-ROBERTSON-
348 PM CDT MON APR 21 2014

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH TEXAS.

.DAY ONE...THIS AFTERNOON...THIS EVENING...AND OVERNIGHT.
THUNDERSTORMS ARE POSSIBLE ACROSS ALL OF NORTH AND CENTRAL TEXAS
THIS AFTERNOON AND EVENING. SOME OF THESE STORMS COULD BE SEVERE
WITH LARGE HAIL AND DAMAGING WINDS BEING THE PRIMARY THREATS.
HOWEVER...AN ISOLATED TORNADO WILL BE POSSIBLE...MAINLY SOUTHEAST
OF A LINE FROM LAMPASAS...TO HILLSBORO...TO TERRELL. THE ACTIVITY
WILL END FROM NORTHWEST TO SOUTHEAST TONIGHT AS A COLD FRONT
SWEEPS THROUGH THE REGION.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY.
THUNDERSTORM CHANCES WILL RETURN AS EARLY AS WEDNESDAY EVENING AND
CONTINUE THROUGH SUNDAY. THE BULK OF THE ACTIVITY WILL BE DURING
THE LATE AFTERNOON AND EARLY EVENING HOURS. SOME SEVERE WEATHER
WILL BE POSSIBLE WITH THE STRONGER ACTIVITY.

.SPOTTER INFORMATION STATEMENT...
SPOTTER ACTIVATION WILL LIKELY BE REQUESTED THIS AFTERNOON AND
EVENING...PRIMARILY SOUTHEAST OF A LINE FROM GOLDTHWAITE...TO GLEN
ROSE...TO MUENSTER.

25

In the hours before

Special weather statement, Apr 21, 5:56 PM CDT, 43 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE FORT WORTH TX
556 PM CDT MON APR 21 2014

TXZ156>158-212330-
LAMPASAS TX-BELL TX-CORYELL TX-
556 PM CDT MON APR 21 2014

...SIGNIFICANT WEATHER ADVISORY FOR...
  WESTERN BELL COUNTY
  SOUTHERN CORYELL COUNTY
  SOUTHEASTERN LAMPASAS COUNTY

AT 557 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
STRONG THUNDERSTORM 3 MILES WEST OF LAMPASAS...MOVING EAST AT 30 MPH.

CITIES IN THE PATH OF THIS STORM INCLUDE COPPERAS COVE...FORT HOOD...
HARKER HEIGHTS...KILLEEN...LAMPASAS AND NOLANVILLE.

PENNY-SIZED HAIL AND WIND GUSTS TO 40 MPH CAN BE EXPECTED FROM THIS
STORM.

LAT...LON 3091 9784 3103 9792 3103 9835 3121 9826
      3123 9757 3086 9760
TIME...MOT...LOC 2257Z 268DEG 26KT 3105 9819
Special weather statement, Apr 21, 5:59 PM CDT, 40 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE FORT WORTH TX
559 PM CDT MON APR 21 2014

TXZ105-212330-
HUNT TX-
559 PM CDT MON APR 21 2014

...SIGNIFICANT WEATHER ADVISORY FOR...
  CENTRAL HUNT COUNTY

AT 559 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
STRONG THUNDERSTORM 8 MILES WEST OF COMMERCE...MOVING SOUTHEAST AT 35
MPH.

CITIES IN THE PATH OF THIS STORM INCLUDE CAMPBELL AND COMMERCE.

PEA-SIZED HAIL AND WIND GUSTS TO 40 MPH CAN BE EXPECTED FROM THIS
STORM.

LAT...LON 3324 9586 3300 9586 3300 9600 3322 9616
      3334 9599
TIME...MOT...LOC 2259Z 321DEG 30KT 3321 9600
Local storm report, Apr 21, 6:00 PM CDT, 39 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE FORT WORTH TX
600 PM CDT MON APR 21 2014

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

0529 PM     HAIL             5 N MERIDIAN            31.99N  97.65W
04/21/2014  E1.00 INCH       BOSQUE             TX   PUBLIC

            QUARTER SIZE HAIL 5 MILES NORTH OF MERIDIAN
Local storm report, Apr 21, 6:09 PM CDT, 30 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE FORT WORTH TX
609 PM CDT MON APR 21 2014

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

0607 PM     HAIL             LAMPASAS                31.07N  98.18W
04/21/2014  E1.00 INCH       LAMPASAS           TX   BROADCAST MEDIA

            QUARTER SIZE HAIL IN LAMPASAS
Special weather statement, Apr 21, 6:21 PM CDT, 18 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE FORT WORTH TX
621 PM CDT MON APR 21 2014

TXZ143>145-157-159-212345-
HAMILTON TX-HILL TX-MCLENNAN TX-BOSQUE TX-CORYELL TX-
621 PM CDT MON APR 21 2014

...SIGNIFICANT WEATHER ADVISORY FOR...
  BOSQUE COUNTY
  NORTH CENTRAL CORYELL COUNTY
  EAST CENTRAL HAMILTON COUNTY
  HILL COUNTY
  NORTHERN MCLENNAN COUNTY

AT 621 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED
STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM 14 MILES SOUTHWEST
OF HILLSBORO TO 7 MILES NORTHEAST OF HAMILTON...MOVING SOUTHEAST AT
15 MPH.

CITIES IN THE PATH OF THESE STORMS INCLUDE BLUM...BYNUM...CARL'S
CORNER...CLIFTON...COVINGTON...CRANFILLS GAP...CRAWFORD...
HILLSBORO...HUBBARD...IREDELL...ITASCA...LACY-LAKEVIEW...MERIDIAN...
NORTHCREST...VALLEY MILLS...WEST...WHITNEY...MERIDIAN STATE PARK AND
LAKE WHITNEY STATE PARK.

FREQUENT CLOUD TO GROUND LIGHTNING...VERY HEAVY RAINFALL...PEA-SIZED
HAIL...AND WIND GUSTS TO 50 MPH CAN BE EXPECTED FROM THESE STORMS.

LAT...LON 3179 9821 3185 9789 3202 9800 3221 9763
      3220 9759 3218 9760 3218 9758 3215 9757
      3213 9752 3218 9747 3227 9709 3206 9695
      3206 9689 3182 9672 3171 9693 3164 9689
      3147 9774
TIME...MOT...LOC 2321Z 315DEG 14KT 3187 9729 3174 9800
Special weather statement, Apr 21, 6:37 PM CDT, 2 minutes before
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The office that day

Everything else NWS Fort Worth, TX issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 21, 3:16 PM CDTSpecial Weather StatementFWDDenton29 min
Apr 21, 4:02 PM CDTSpecial Weather StatementFWDDallas28 min
Apr 21, 4:04 PM CDTSpecial Weather StatementFWDCoryell26 min
Apr 21, 4:07 PM CDTSpecial Weather StatementFWDLamar38 min
Apr 21, 4:18 PM CDTSpecial Weather StatementFWDLampasas27 min
Apr 21, 4:21 PM CDTSevere Thunderstorm WarningFWDBell, Coryell, Lampasas54 min
Apr 21, 4:22 PM CDTSpecial Weather StatementFWDEllis23 min
Apr 21, 4:30 PM CDTSpecial Weather StatementFWDMcLennan30 min
Apr 21, 4:42 PM CDTSpecial Weather StatementFWDEllis33 min
Apr 21, 4:45 PM CDTSpecial Weather StatementFWDCoryell30 min
Apr 21, 4:48 PM CDTSevere Thunderstorm WarningFWDCoryell57 min
Apr 21, 4:52 PM CDTSpecial Weather StatementFWDHill23 min
Apr 21, 5:05 PM CDTSevere Thunderstorm WarningFWDEllis55 min
Apr 21, 5:18 PM CDTSevere Thunderstorm WarningFWDBosque57 min
Apr 21, 5:37 PM CDTSevere Thunderstorm WarningFWDDelta, Hopkins, Lamar53 min
Apr 21, 5:38 PM CDTSpecial Weather StatementFWDLampasas37 min
Apr 21, 5:51 PM CDTSpecial Weather StatementFWDDelta, Hopkins24 min
Apr 21, 5:56 PM CDTSpecial Weather StatementFWDLampasas34 min
Apr 21, 5:56 PM CDTSevere Thunderstorm WarningFWDEllis, Navarro64 min
Apr 21, 5:59 PM CDTSpecial Weather StatementFWDHunt31 min
Apr 21, 6:02 PM CDTSevere Thunderstorm WarningFWDDelta, Hopkins, Hunt, Rains58 min
Apr 21, 6:04 PM CDTSevere Thunderstorm WarningFWDBell, Coryell, Lampasas56 min
Apr 21, 6:21 PM CDTSpecial Weather StatementFWDBosque, Hill24 min
Apr 21, 6:37 PM CDTSpecial Weather StatementFWDEllis38 min
Apr 21, 6:37 PM CDTSevere Thunderstorm WarningFWDBosque, McLennan53 min
Apr 21, 6:51 PM CDTSevere Thunderstorm WarningFWDCoryell54 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.