Alert archive / Texas / Severe Thunderstorm Warnings in 2007

Severe Thunderstorm Warning 299, NWS Fort Worth, TX

June 15, 2007Stephens County, Texas

NWS Fort Worth, TX issued this severe thunderstorm warning at Jun 15, 2007, 9:21 PM CDT for Stephens County, Texas. It was in force for 39 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: Jun 15, 2007, 9:21 PM CDT (02:21 UTC)
Expired: Jun 15, 2007, 10:00 PM CDT
In force: 39 min
Issued by: NWS Fort Worth, TX
Area: Counties, with a storm outline in the text

County Stephens County, TX

The radar

The Dyess AFB radar (KDYX), 45 km from the middle of the area, began a volume at 02:21 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 00:00Z, 2.4 hours before the alert went out and 145 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: 119 J/kg
Mixed-layer CIN: -125 J/kg
Mixed-layer LCL: 1462 m above ground
0-6 km bulk shear: 22 kt
0-1 km storm-relative helicity: 3 m²/s²
0-3 km storm-relative helicity: 50 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 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 Jun 15, 9:05 PM CDT, 16 minutes earlier.

Area forecast discussion, Jun 15, 9:05 PM CDT, 16 minutes before

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Hazardous weather outlook, Jun 15, 10:00 AM CDT, 11 hours 21 minutes before

HAZARDOUS WEATHER OUTLOOK FOR NORTH TEXAS...UPDATED
NATIONAL WEATHER SERVICE FORT WORTH TX
1000 AM CDT FRI JUN 15 2007

TXZ091>095-100>107-115>123-129>135-141>148-156>162-174-175-161100-
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-
1000 AM CDT FRI JUN 15 2007

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH TEXAS.

.DAY ONE...
NUMEROUS THUNDERSTORMS ARE EXPECTED ACROSS NORTH TEXAS TODAY AND
TONIGHT. THERE WILL BE A SLIGHT RISK OF SEVERE STORMS ACROSS CENTRAL
TEXAS THROUGH EARLY AFTERNOON. THE FOCUS FOR SEVERE THUNDERSTORMS
WILL THEN SHIFT EAST...AFFECTING AREAS FROM HEARNE TO PALESTINE
DURING THE REMAINDER OF THE AFTERNOON. FOR THE BULK OF NORTH
TEXAS...THE PRECIPITATION EARLY IN THE DAY WILL LIMIT FURTHER
CONVECTION AND THUS DIMINISH THE SEVERE THREAT.

ONE INCH DIAMETER HAIL AND WIND GUSTS UP TO 65 MPH WILL BE THE MAIN
SEVERE WEATHER THREATS TODAY. EVEN THOUGH THE OVERALL INTENSITY OF
THE THUNDERSTORMS WILL DIMINISH AS THE DAY PROGRESSES...LOCALLY
HEAVY RAIN WILL STILL BE POSSIBLE THROUGH TONIGHT. ADDITIONAL
RAINFALL AMOUNTS AS LITTLE AS 1 TO 2 INCHES COULD RESULT IN FLASH
FLOODING.

.DAYS TWO THROUGH SEVEN...
ANOTHER ROUND OF STRONG TO SEVERE THUNDERSTORMS WITH LOCALLY HEAVY
RAIN IS IN THE FORECAST FOR SATURDAY AND SATURDAY NIGHT. THE CHANCE
OF THUNDERSTORMS WILL CONTINUE SUNDAY AND MONDAY. THERE WILL ALSO BE
A SLIGHT CHANCE OF THUNDERSTORMS TUESDAY AFTERNOON AND AGAIN
WEDNESDAY AFTERNOON.

.SPOTTER INFORMATION STATEMENT...
SPOTTER ACTIVATION MAY BE REQUESTED TODAY ACROSS MAINLY SOUTHERN AND
EASTERN PORTIONS OF NORTH TEXAS. THOUGH SPOTTER ACTIVATION WILL BE
LESS LIKELY AFTER DARK...THERE MAY BE A NEED FOR REPORTS OF FLOODING
ISSUES.

09/25

In the hours before

Special weather statement, Jun 15, 7:45 PM CDT, 1 hour 36 minutes before

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Special weather statement, Jun 15, 7:47 PM CDT, 1 hour 34 minutes before

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Special weather statement, Jun 15, 8:11 PM CDT, 1 hour 10 minutes before

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Special weather statement, Jun 15, 8:36 PM CDT, 45 minutes before

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Special weather statement, Jun 15, 8:53 PM CDT, 28 minutes before

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Special weather statement, Jun 15, 8:55 PM CDT, 26 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 15, 7:18 PM CDT	Special Weather Statement	FWD	Young	27 min
Jun 15, 7:45 PM CDT	Special Weather Statement	FWD	Young	30 min
Jun 15, 7:47 PM CDT	Special Weather Statement	FWD	Jack	28 min
Jun 15, 8:11 PM CDT	Special Weather Statement	FWD	Young	34 min
Jun 15, 8:36 PM CDT	Special Weather Statement	FWD	Wise	24 min
Jun 15, 8:53 PM CDT	Special Weather Statement	FWD	Jack	37 min
Jun 15, 8:55 PM CDT	Special Weather Statement	FWD	Stephens	35 min
Jun 15, 9:18 PM CDT	Severe Thunderstorm Warning	FWD	Palo Pinto, Parker	32 min
Jun 15, 9:46 PM CDT	Special Weather Statement	FWD	Eastland	29 min
Jun 15, 9:57 PM CDT	Special Weather Statement	FWD	Parker	33 min
Jun 15, 10:47 PM CDT	Special Weather Statement	FWD	Denton, Tarrant	28 min
Jun 16, 12:54 AM CDT	Special Weather Statement	FWD	Mills	36 min
Jun 16, 1:28 AM CDT	Special Weather Statement	FWD	Lampasas	62 min
Jun 16, 2:30 AM CDT	Special Weather Statement	FWD	Lampasas	30 min
Jun 16, 3:08 AM CDT	Special Weather Statement	FWD	Coryell	37 min
Jun 16, 4:09 AM CDT	Flash Flood Watch	FWD	Anderson, Bell, Bosque, Collin, Comanche, Cooke and 34 more	56 hr
Jun 16, 5:15 AM CDT	Special Weather Statement	FWD	Hill, Navarro	30 min
Jun 16, 5:41 AM CDT	Special Weather Statement	FWD	Navarro	34 min

Nearby

Severe Thunderstorm Warnings in Texas, 2007 Every 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.