Alert archive / Texas / Flash Flood Warnings in 2007

Flash Flood Warning 278, NWS Fort Worth, TX

June 30, 2007Bosque County, Hamilton County, Texas

NWS Fort Worth, TX issued this flash flood warning at Jun 30, 2007, 5:41 PM CDT for Bosque County, Hamilton 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: Jun 30, 2007, 5:41 PM CDT (22:41 UTC)
Expired: Jun 30, 2007, 8:45 PM CDT
In force: 3 hr
Issued by: NWS Fort Worth, TX
Area: Whole counties

Counties Bosque County, TX, Hamilton County, TX

The radar

The Dallas/Ft Worth radar (KFWS), 101 km from the middle of the area, began a volume at 22:42 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, 10.7 hours before the alert went out and 127 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: 993 J/kg
Mixed-layer CIN: -38 J/kg
Mixed-layer LCL: 799 m above ground
0-6 km bulk shear: 16 kt
0-1 km storm-relative helicity: 114 m²/s²
0-3 km storm-relative helicity: 110 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 Jun 30, 3:22 PM CDT, 2 hours 19 minutes earlier.

Area forecast discussion, Jun 30, 3:22 PM CDT, 2 hours 19 minutes before

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Hazardous weather outlook, Jun 30, 4:00 AM CDT, 13 hours 41 minutes before

HAZARDOUS WEATHER OUTLOOK FOR NORTH TEXAS
NATIONAL WEATHER SERVICE FORT WORTH TX
400 AM CDT SAT JUN 30 2007

TXZ091>095-100>107-115>123-129>135-141>148-156>162-174-175-011000-
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-
400 AM CDT SAT JUN 30 2007

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH TEXAS.

.DAY ONE...
FLASH FLOODING FROM HEAVY RAINFALL WILL BE A THREAT TODAY AND TONIGHT
AS SCATTERED SHOWERS AND THUNDERSTORMS ARE EXPECTED ACROSS PARTS OF
NORTH TEXAS...ESPECIALLY THE NORTHWESTERN HALF AND ALONG THE RED
RIVER VALLEY. CLOUD TO GROUND LIGHTNING AND WIND GUSTS TO 35 MPH WILL
ALSO PRESENT A HAZARD.

.DAYS TWO THROUGH SEVEN...
SCATTERED SHOWERS AND THUNDERSTORMS ARE EXPECTED ACROSS PARTS OF
NORTH TEXAS THROUGH FRIDAY. FLASH FLOODING AND CLOUD TO GROUND
LIGHTNING WILL BE THE MAIN THREATS.

.SPOTTER INFORMATION STATEMENT...

LIMITED SPOTTER ACTIVATION MAY BE NEEDED FOR FLOODING REPORTS TODAY
AND TONIGHT.

In the hours before

Special weather statement, Jun 30, 2:21 PM CDT, 3 hours 20 minutes before

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Special weather statement, Jun 30, 4:36 PM CDT, 1 hour 5 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
Jun 29, 7:48 PM CDT	Special Weather Statement	FWD	Tarrant	27 min
Jun 30, 1:25 AM CDT	Flash Flood Warning	FWD	Cooke, Denton, Tarrant	4 hr
Jun 30, 6:50 AM CDT	Flash Flood Warning	FWD	Cooke	3 hr
Jun 30, 7:15 AM CDT	Flash Flood Warning	FWD	Cooke	3 hr
Jun 30, 2:21 PM CDT	Special Weather Statement	FWD	Tarrant	24 min
Jun 30, 4:36 PM CDT	Special Weather Statement	FWD	Hill	24 min
Jun 30, 6:47 PM CDT	Flash Flood Warning	FWD	Mills	3 hr

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.