Alert archive / Texas / Flash Flood Warnings in 2007

Flash Flood Warning 378, NWS Fort Worth, TX

July 23, 2007Tarrant County, Texas

NWS Fort Worth, TX issued this flash flood warning at Jul 23, 2007, 6:36 PM CDT for Tarrant County, Texas. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Jul 23, 2007, 6:36 PM CDT (23:36 UTC)
Expired: Jul 23, 2007, 9:30 PM CDT
In force: 3 hr
Issued by: NWS Fort Worth, TX
Area: Whole counties

County Tarrant County, TX

The radar

The Dallas/Ft Worth radar (KFWS), 22 km from the middle of the area, began a volume at 23:39 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 nearest sounding before it

Fort Worth, TX (KFWD), launched 12:00Z, 11.6 hours before the alert went out and 7 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: 1147 J/kg
Mixed-layer CIN: -46 J/kg
Mixed-layer LCL: 797 m above ground
0-6 km bulk shear: 14 kt
0-1 km storm-relative helicity: 52 m²/s²
0-3 km storm-relative helicity: 123 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this flash flood 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 flash flood warning went out at Jul 23, 6:34 PM CDT, 2 minutes earlier.

Area forecast discussion, Jul 23, 6:34 PM CDT, 2 minutes before

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Hazardous weather outlook, Jul 23, 3:55 PM CDT, 2 hours 41 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE FORT WORTH TX
355 PM CDT MON JUL 23 2007

TXZ091>095-100>107-115>123-129>135-141>148-156>162-174-175-241100-
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-
355 PM CDT MON JUL 23 2007

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH TEXAS.

.DAY ONE...TONIGHT

SCATTERED THUNDERSTORMS WILL CONTINUE THROUGH TONIGHT MAINLY ALONG
AND WEST OF INTERSTATE 35. WIDESPREAD SEVERE WEATHER IS NOT
EXPECTED...HOWEVER THE STRONGER STORMS THROUGH THIS EVENING MAY
PRODUCE LOCALIZED 1 TO 2 INCH RAINFALL AMOUNTS AND WIND GUSTS TO 50 MPH.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY

ISOLATED AFTERNOON AND EVENING THUNDERSTORMS ARE EXPECTED THROUGH THE WEEK.
ORGANIZED SEVERE WEATHER IS NOT EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

LIMITED SPOTTER ACTIVATION IS POSSIBLE THIS EVENING WEST OF
INTERSTATE 35.

07/BB

In the hours before

Special weather statement, Jul 23, 4:34 PM CDT, 2 hours 2 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE FORT WORTH TX
434 PM CDT MON JUL 23 2007

TXZ131-232200-
HOOD TX-
434 PM CDT MON JUL 23 2007

...SIGNIFICANT WEATHER ADVISORY FOR...
  HOOD COUNTY

AT 434 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
STRONG THUNDERSTORM 7 MILES NORTH OF GRANBURY...MOVING SOUTH AT 15
MPH.

CITIES IN THE PATH OF THIS STORM INCLUDE GRANBURY AND OAK TRAIL
SHORES. BOATERS ON LAKE GRANBURY SHOULD MOVE TO SAFE HARBOR BEFORE
THIS STORM APPROACHES.

VERY HEAVY RAIN AND WIND GUSTS TO 50 MPH ARE LIKELY WITH THIS STORM.

LAT...LON 3259 9770 3259 9799 3229 9796 3233 9766

07/BB

Special weather statement, Jul 23, 4:46 PM CDT, 1 hour 50 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE FORT WORTH TX
446 PM CDT MON JUL 23 2007

TXZ102-232215-
WISE TX-
446 PM CDT MON JUL 23 2007

...SIGNIFICANT WEATHER ADVISORY FOR...
  WESTERN WISE COUNTY

AT 446 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED
STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM 7 MILES NORTHWEST OF
BRIDGEPORT TO 8 MILES WEST OF BRIAR...MOVING SOUTHEAST AT 5 MPH.

CITIES IN THE PATH OF THESE STORMS INCLUDE ALVORD...BOYD...BRIDGEPORT
AND CHICO.

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

LAT...LON 3343 9794 3301 9790 3300 9751 3336 9769

07/BB

Local storm report, Jul 23, 5:12 PM CDT, 1 hour 24 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE FORT WORTH TX
512 PM CDT MON JUL 23 2007

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

0428 PM     TSTM WND GST     5 W BOYD                33.08N  97.65W
07/23/2007  MMM62 MPH        WISE               TX   FIRE DEPT/RESCUE

            COTTONDALE FIRE DEPT MEASURED 62 MPH WIND GUST

Special weather statement, Jul 23, 5:19 PM CDT, 1 hour 17 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE FORT WORTH TX
519 PM CDT MON JUL 23 2007

TXZ133-232245-
JOHNSON TX-
519 PM CDT MON JUL 23 2007

...SIGNIFICANT WEATHER ADVISORY FOR...
  SOUTHWESTERN JOHNSON COUNTY

AT 519 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
RAPIDLY DEVELOPING STRONG THUNDERSTORM JUST NORTHWEST OF CLEBURNE...
MOVING SOUTH AT 5 MPH.

CITIES IN THE PATH OF THIS STORM INCLUDE CLEBURNE...GODLEY AND
CLEBURNE STATE PARK.

FREQUENT CLOUD TO GROUND LIGHTNING...VERY HEAVY RAINFALL...PEA-SIZED
HAIL...AND WIND GUSTS TO 55 MPH CAN BE EXPECTED FROM THIS STORM.

LAT...LON 3246 9746 3244 9761 3221 9757 3224 9726

07/BB

Special weather statement, Jul 23, 5:24 PM CDT, 1 hour 12 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE FORT WORTH TX
524 PM CDT MON JUL 23 2007

TXZ117-232300-
PARKER TX-
524 PM CDT MON JUL 23 2007

...SIGNIFICANT WEATHER ADVISORY FOR...
  SOUTHEASTERN PARKER COUNTY

AT 524 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
STRONG THUNDERSTORM 9 MILES WEST OF BENBROOK...MOVING SOUTH AT 5 MPH.

CITIES IN THE PATH OF THIS STORM INCLUDE ALEDO...ANNETTA...HUDSON
OAKS AND WILLOW PARK.

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

LAT...LON 3280 9752 3278 9773 3255 9772 3256 9752

Special weather statement, Jul 23, 6:29 PM CDT, 7 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 23, 2:41 PM CDT	Special Weather Statement	FWD	Palo Pinto	34 min
Jul 23, 2:52 PM CDT	Special Weather Statement	FWD	Montague	23 min
Jul 23, 3:04 PM CDT	Special Weather Statement	FWD	Hamilton	26 min
Jul 23, 3:05 PM CDT	Special Weather Statement	FWD	Mills	25 min
Jul 23, 3:20 PM CDT	Special Weather Statement	FWD	Parker	25 min
Jul 23, 4:34 PM CDT	Special Weather Statement	FWD	Hood	26 min
Jul 23, 4:46 PM CDT	Special Weather Statement	FWD	Wise	29 min
Jul 23, 5:19 PM CDT	Special Weather Statement	FWD	Johnson	26 min
Jul 23, 5:24 PM CDT	Special Weather Statement	FWD	Parker	36 min
Jul 23, 5:58 PM CDT	Flash Flood Warning	FWD	Parker	3 hr
Jul 23, 6:29 PM CDT	Special Weather Statement	FWD	Tarrant	31 min
Jul 23, 6:44 PM CDT	Flash Flood Warning	FWD	Bosque, Hill	3 hr
Jul 23, 6:49 PM CDT	Special Weather Statement	FWD	Tarrant	26 min

Nearby

Flash Flood Warnings in Texas, 2007 Every flash flood 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.