Alert archive / Texas / Severe Thunderstorm Warnings in 2008

Severe Thunderstorm Warning 96, NWS Fort Worth, TX

April 3, 2008Jack County, Texas

NWS Fort Worth, TX issued this severe thunderstorm warning at Apr 3, 2008, 6:07 PM CDT for Jack County, Texas. It was in force for 53 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 3, 2008, 6:07 PM CDT (23:07 UTC)
Expired
Apr 3, 2008, 7:00 PM CDT
In force
53 min
Issued by
NWS Fort Worth, TX
Area
Storm-based polygon

County Jack County, TX

The radar

The Dallas/Ft Worth radar (KFWS), 109 km from the middle of the area, began a volume at 23:09 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Apr 3, 2:04 PM CDTTornado WatchSPC6 hr

The nearest sounding before it

Norman, OK (KOUN), launched 12:00Z, 11.1 hours before the alert went out and 232 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, Norman, OK at 12:00Z on 2008-04-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 199 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, Norman, OK at 12:00Z on 2008-04-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 666 square meters per square second.1939587897Sfc1 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
199 J/kg
Mixed-layer CIN
-238 J/kg
Mixed-layer LCL
410 m above ground
0-6 km bulk shear
74 kt
0-1 km storm-relative helicity
666 m²/s²
0-3 km storm-relative helicity
625 m²/s²
Significant tornado parameter
0.0
Supercell composite
7.8

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 3, 5:57 PM CDT, 10 minutes earlier.

Area forecast discussion, Apr 3, 5:57 PM CDT, 10 minutes before
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Hazardous weather outlook, Apr 3, 3:30 PM CDT, 2 hours 37 minutes before
HAZARDOUS WEATHER OUTLOOK FOR NORTH TEXAS
NATIONAL WEATHER SERVICE FORT WORTH TX
330 PM CDT THU APR 3 2008

TXZ091>095-100>107-115>123-129>135-141>148-156>162-174-175-041100-
ANDERSON-BELL-BOSQUE-COLLIN-COMANCHE-COOKE-CORYELL-DALLAS-DELTA-
DENTON-EASTLAND-ELLIS-ERATH-FALLS-FANNIN-FREESTONE-GRAYSON-HAMILTON-
HENDERSON-HILL-HOOD-HOPKINS-HUNT-JACK-JOHNSON-KAUFMAN-LAMAR-LAMPASAS-
LEON-LIMESTONE-MCLENNAN-MILAM-MILLS-MONTAGUE-NAVARRO-PALO PINTO-
PARKER-RAINS-ROBERTSON-ROCKWALL-SOMERVELL-STEPHENS-TARRANT-VAN ZANDT-
WISE-YOUNG-
330 PM CDT THU APR 3 2008

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH TEXAS.

.DAY ONE...
THERE IS A MODERATE RISK OF SEVERE THUNDERSTORMS ALONG AND NORTH OF
THE INTERSTATE 20 CORRIDOR...WITH A SLIGHT RISK ACROSS THE REMAINDER
OF NORTH AND CENTRAL TEXAS.

THROUGH THE EARLY EVENING HOURS...THE SEVERE THUNDERSTORMS ARE
EXPECTED TO REMAIN ACROSS NORTHWESTERN AND NORTHERN PORTIONS OF
NORTH TEXAS. THE MAIN SEVERE WEATHER THREAT WITH THESE STORMS WILL
BE VERY LARGE AND DESTRUCTIVE HAIL.  THESE STORMS WILL ALSO HAVE THE
POTENTIAL TO PRODUCE DAMAGING WINDS AND ISOLATED TORNADOES.

LATER THIS EVENING AND INTO THE OVERNIGHT HOURS...THUNDERSTORMS WILL
INCREASE IN COVERAGE AND AFFECT ALL OF NORTH TEXAS. A LINE OF STRONG
TO SEVERE THUNDERSTORMS WILL DEVELOP ALONG A SOUTHWARD MOVING COLD
FRONT. THESE STORMS WILL PRODUCE HEAVY RAIN...DAMAGING WINDS...LARGE
HAIL...AND PERHAPS AN ISOLATED TORNADO.

.DAYS TWO THROUGH SEVEN...
THE COLD FRONT WILL MOVE THROUGH THE SOUTHEASTERN PART OF NORTH
TEXAS BEFORE MIDDAY FRIDAY. SOME LINGERING SEVERE STORMS ARE
POSSIBLE FRIDAY MORNING SOUTHEAST OF A CANTON TO TEMPLE LINE.
OTHERWISE THUNDERSTORMS WILL END FROM WEST TO EAST ACROSS NORTH
TEXAS DURING THE DAY.

A CHANCE OF THUNDERSTORMS WILL RETURN TO NORTH TEXAS MONDAY AND
AGAIN WEDNESDAY. ISOLATED SEVERE THUNDERSTORMS WILL BE POSSIBLE.

.SPOTTER INFORMATION STATEMENT...
SPOTTER ACTIVATION WILL BE REQUESTED THIS EVENING AND OVERNIGHT.

92

In the hours before

Local storm report, Apr 3, 4:47 PM CDT, 1 hour 20 minutes before
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Special weather statement, Apr 3, 4:59 PM CDT, 1 hour 8 minutes before
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Local storm report, Apr 3, 5:19 PM CDT, 48 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE FORT WORTH TX
519 PM CDT THU APR 03 2008

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

0450 PM     HAIL             7 WSW NOCONA            33.74N  97.84W
04/03/2008  E2.00 INCH       MONTAGUE           TX   NWS EMPLOYEE
Special weather statement, Apr 3, 5:34 PM CDT, 33 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE FORT WORTH TX
534 PM CDT THU APR 3 2008

TXZ101-032300-
JACK TX-
534 PM CDT THU APR 3 2008

...SIGNIFICANT WEATHER ADVISORY FOR...
  NORTHWESTERN JACK COUNTY

AT 534 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
STRONG THUNDERSTORM 7 MILES SOUTH OF OLNEY...MOVING EAST AT 45 MPH.

THIS STORM HAS A HISTORY OF PRODUCING BASEBALL SIZE HAIL IN YOUNG
COUNTY. IF THE STORM CONTINUES ON ITS PATH...A SEVERE THUNDERSTORM
WARNING MAY BE NEEDED FOR JACK COUNTY.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 900 PM CDT THURSDAY EVENING
FOR NORTH CENTRAL TEXAS.

LAT...LON 3347 9842 3347 9821 3317 9819 3316 9841
TIME...MOT...LOC 2234Z 265DEG 39KT 3327 9872

13
Local storm report, Apr 3, 5:36 PM CDT, 31 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE FORT WORTH TX
536 PM CDT THU APR 03 2008

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

0534 PM     HAIL             6 S OLNEY               33.28N  98.76W
04/03/2008  E2.75 INCH       YOUNG              TX   EMERGENCY MNGR

            BASEBALL TO GOLF BALL SOUTH OF OLNEY
Special weather statement, Apr 3, 5:50 PM CDT, 17 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE FORT WORTH TX
550 PM CDT THU APR 3 2008

TXZ093-032315-
GRAYSON TX-
550 PM CDT THU APR 3 2008

...SIGNIFICANT WEATHER ADVISORY FOR...
  NORTHERN GRAYSON COUNTY

AT 550 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
STRONG THUNDERSTORM 8 MILES NORTH OF WHITESBORO...MOVING NORTHEAST AT
48 MPH.

CITIES IN THE PATH OF THIS STORM INCLUDE DENISON...POTTSBORO...
HENDRIX AND EISENHOWER STATE PARK.

FREQUENT CLOUD TO GROUND LIGHTNING...VERY HEAVY RAINFALL...PEA-SIZED
HAIL...AND WIND GUSTS TO 40 MPH CAN BE EXPECTED FROM THIS STORM.

LAT...LON 3387 9682 3383 9670 3391 9666 3389 9658
      3385 9662 3381 9650 3378 9649 3378 9642
      3374 9636 3366 9693 3384 9693
TIME...MOT...LOC 2250Z 247DEG 42KT 3378 9682

13

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 3, 9:36 AM CDTSpecial Weather StatementFWDTarrant54 min
Apr 3, 9:45 AM CDTRiver Flood WarningFWDDelta, Hopkins24 hr
Apr 3, 10:26 AM CDTSpecial Weather StatementFWDDallas, Tarrant64 min
Apr 3, 4:25 PM CDTSpecial Weather StatementFWDYoung35 min
Apr 3, 4:26 PM CDTSpecial Weather StatementFWDMontague34 min
Apr 3, 4:30 PM CDTSevere Thunderstorm WarningFWDMontague45 min
Apr 3, 4:59 PM CDTSpecial Weather StatementFWDYoung31 min
Apr 3, 5:03 PM CDTSevere Thunderstorm WarningFWDCooke57 min
Apr 3, 5:09 PM CDTSevere Thunderstorm WarningFWDYoung66 min
Apr 3, 5:34 PM CDTSpecial Weather StatementFWDJack26 min
Apr 3, 5:50 PM CDTSpecial Weather StatementFWDGrayson25 min
Apr 3, 6:39 PM CDTSpecial Weather StatementFWDDenton36 min
Apr 3, 6:48 PM CDTSevere Thunderstorm WarningFWDMontague, Wise41 min
Apr 3, 6:56 PM CDTSpecial Weather StatementFWDFannin34 min

Nearby

Severe Thunderstorm Warnings in Texas, 2008Every severe thunderstorm warning in 2008

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.