Alert archive / Texas / Severe Thunderstorm Warnings in 2007

Severe Thunderstorm Warning 310, NWS Fort Worth, TX

June 20, 2007Wise County, Texas

NWS Fort Worth, TX issued this severe thunderstorm warning at Jun 20, 2007, 2:59 AM CDT for Wise County, Texas. It was in force for 61 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Jun 20, 2007, 2:59 AM CDT (07:59 UTC)
Expired
Jun 20, 2007, 4:00 AM CDT
In force
61 min
Issued by
NWS Fort Worth, TX
Area
Counties, with a storm outline in the text

County Wise County, TX

The radar

The Dallas/Ft Worth radar (KFWS), 84 km from the middle of the area, began a volume at 08:03 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
Jun 20, 1:10 AM CDTSevere Thunderstorm WatchSPC8 hr

The nearest sounding before it

Fort Worth, TX (KFWD), launched 00:00Z, 8.0 hours before the alert went out and 60 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 00:00Z on 2007-06-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3576 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Fort Worth, TX at 00:00Z on 2007-06-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -16 square meters per square second.1939Sfc1 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
3576 J/kg
Mixed-layer CIN
-10 J/kg
Mixed-layer LCL
1390 m above ground
0-6 km bulk shear
11 kt
0-1 km storm-relative helicity
-16 m²/s²
0-3 km storm-relative helicity
27 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WUUS54 KFWD 200800
SVRFWD
TXC497-200900-
/O.NEW.KFWD.SV.W.0310.070620T0759Z-070620T0900Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE FORT WORTH TX
259 AM CDT WED JUN 20 2007

THE NATIONAL WEATHER SERVICE IN FORT WORTH HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  WISE COUNTY IN NORTH CENTRAL TEXAS...

* UNTIL 400 AM CDT

* AT 259 AM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
  LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DESTRUCTIVE WINDS
  IN EXCESS OF 70 MPH.  THESE STORMS WERE LOCATED ALONG A LINE
  EXTENDING FROM FROM BOWIE TO 8 MILES EAST OF JACKSBORO...AND
  MOVING SOUTHEAST AT 45 MPH.

* SEVERE THUNDERSTORMS WILL BE NEAR...
  CHICO BY 310 AM
  BRIDGEPORT AND ALVORD BY 315 AM
  DECATUR BY 330 AM
  BOYD BY 335 AM
  AURORA BY 340 AM

FOR YOUR PROTECTION MOVE TO A STURDY SHELTER UNTIL THE STORM HAS
PASSED.

IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER IN A STRONG BUILDING AND
STAY INSIDE...AWAY FROM WINDOWS UNTIL THE STORM HAS PASSED.

THIS STORM HAS A HISTORY OF PRODUCING WIDESPREAD WIND DAMAGE. THIS IS
AN EXTREMELY DANGEROUS SITUATION. SEEK SHELTER NOW INSIDE A STURDY
STRUCTURE AND STAY AWAY FROM WINDOWS

LAT...LON 3341 9790 3302 9792 3300 9741 3341 9739

$$

07/BB
2 follow-up statements
000 
WWUS54 KFWD 200810
SVSFWD

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE FORT WORTH TX
310 AM CDT WED JUN 20 2007

TXC497-200900-
/O.CON.KFWD.SV.W.0310.000000T0000Z-070620T0900Z/
WISE TX-
310 AM CDT WED JUN 20 2007

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 400 AM CDT
FOR WISE COUNTY...

AT 310 AM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DESTRUCTIVE WINDS
IN EXCESS OF 70 MPH.  THESE STORMS WERE LOCATED ALONG A LINE
EXTENDING FROM 10 MILES NORTHWEST OF ALVORD TO 13 MILES SOUTHWEST OF 
RUNAWAY BAY...MOVING SOUTHEAST AT 45 MPH.

SEVERE THUNDERSTORMS WILL BE NEAR...
  RUNAWAY BAY...LAKE BRIDGEPORT AND CHICO BY 315 AM CDT...
  BRIDGEPORT BY 320 AM CDT...
  ALVORD BY 325 AM CDT...
  DECATUR BY 335 AM CDT...
  BOYD BY 340 AM CDT...
  AURORA BY 345 AM CDT...

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 900 AM CDT
WEDNESDAY MORNING FOR NORTH CENTRAL TEXAS.

LAT...LON 3341 9790 3302 9792 3300 9741 3341 9739

$$
000 
WWUS54 KFWD 200900
SVSFWD

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE FORT WORTH TX
400 AM CDT WED JUN 20 2007

TXC497-200910-
/O.EXP.KFWD.SV.W.0310.000000T0000Z-070620T0900Z/
WISE TX-
400 AM CDT WED JUN 20 2007

...THE SEVERE THUNDERSTORM WARNING FOR WISE COUNTY EXPIRES AT 400 AM
CDT...

AT 400 AM CDT THE SEVERE THUNDERSTORM THAT PROMPTED THE WARNING MOVED
OUT OF THE AREA AND THE WARNING EXPIRED.

RADAR INDICATED THAT HEAVY RAIN...SMALL HAIL...AND GUSTY WINDS WERE
STILL POSSIBLE FROM THE THUNDERSTORM.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 900 AM CDT
WEDNESDAY MORNING FOR NORTH CENTRAL TEXAS.

LAT...LON 3335 9775 3302 9792 3300 9741 3341 9739

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 19, 11:34 PM CDTFlash Flood WatchFWDCollin, Cooke, Dallas, Denton, Eastland, Ellis and 14 more9 hr
Jun 20, 2:13 AM CDTSevere Thunderstorm WarningFWDYoung62 min
Jun 20, 2:31 AM CDTSevere Thunderstorm WarningFWDJack, Palo Pinto, Stephens59 min
Jun 20, 2:50 AM CDTSevere Thunderstorm WarningFWDMontague55 min
Jun 20, 3:19 AM CDTSevere Thunderstorm WarningFWDParker56 min
Jun 20, 3:28 AM CDTSevere Thunderstorm WarningFWDComanche, Eastland, Erath62 min
Jun 20, 3:35 AM CDTSpecial Weather StatementFWDDenton, Hill, Johnson, Tarrant25 min
Jun 20, 3:44 AM CDTSevere Thunderstorm WarningFWDHood, Somervell61 min
Jun 20, 4:11 AM CDTSevere Thunderstorm WarningFWDCooke64 min
Jun 20, 4:19 AM CDTSpecial Weather StatementFWDTarrant26 min
Jun 20, 4:58 AM CDTSevere Thunderstorm WarningFWDTarrant27 min
Jun 20, 5:16 AM CDTSpecial Weather StatementFWDGrayson29 min
Jun 20, 5:22 AM CDTFlash Flood WarningFWDGrayson3 hr
Jun 20, 5:47 AM CDTSpecial Weather StatementFWDFannin28 min
Jun 20, 6:01 AM CDTSevere Thunderstorm WarningFWDCollin43 min
Jun 20, 6:10 AM CDTFlash Flood WarningFWDFannin3 hr
Jun 20, 6:38 AM CDTSpecial Weather StatementFWDDelta, Fannin, Hopkins, Lamar37 min
Jun 20, 6:55 AM CDTSpecial Weather StatementFWDDelta35 min
Jun 20, 9:58 AM CDTSpecial Weather StatementFWDFreestone32 min
Jun 20, 10:27 AM CDTSpecial Weather StatementFWDAnderson33 min
Jun 20, 1:09 PM CDTSpecial Weather StatementFWDHunt36 min
Jun 20, 1:39 PM CDTSpecial Weather StatementFWDHunt, Rockwall36 min
Jun 20, 2:13 PM CDTFlash Flood WarningFWDHunt, Rockwall3 hr
Jun 20, 2:27 PM CDTSpecial Weather StatementFWDFannin33 min
Jun 20, 2:40 PM CDTSpecial Weather StatementFWDHunt35 min
Jun 20, 2:44 PM CDTSevere Thunderstorm WarningFWDHunt25 min
Jun 20, 2:59 PM CDTSpecial Weather StatementFWDHopkins31 min
Jun 20, 3:07 PM CDTFlash Flood WatchFWDCollin, Cooke, Dallas, Delta, Denton, Fannin and 7 more30 hr

Nearby

Severe Thunderstorm Warnings in Texas, 2007Every severe thunderstorm warning in 2007

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.