Alert archive / Texas / Severe Thunderstorm Warnings in 2007

Severe Thunderstorm Warning 79, NWS Fort Worth, TX

April 17, 2007Mills County, Texas

NWS Fort Worth, TX issued this severe thunderstorm warning at Apr 17, 2007, 5:02 PM CDT for Mills County, Texas. It was in force for 48 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 17, 2007, 5:02 PM CDT (22:02 UTC)
Expired: Apr 17, 2007, 5:50 PM CDT
In force: 48 min
Issued by: NWS Fort Worth, TX
Area: Counties, with a storm outline in the text

County Mills County, TX

The radar

The Dyess AFB radar (KDYX), 132 km from the middle of the area, began a volume at 22:05 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.

Issued	Product	Office	Lasted
Apr 17, 1:37 PM CDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Fort Worth, TX (KFWD), launched 12:00Z, 10.0 hours before the alert went out and 193 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 818 m above ground
0-6 km bulk shear: 45 kt
0-1 km storm-relative helicity: 135 m²/s²
0-3 km storm-relative helicity: 198 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 Apr 17, 3:17 PM CDT, 1 hour 45 minutes earlier.

Area forecast discussion, Apr 17, 3:17 PM CDT, 1 hour 45 minutes before

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Hazardous weather outlook, Apr 17, 3:20 PM CDT, 1 hour 42 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE FORT WORTH TX
320 PM CDT TUE APR 17 2007

TXZ091>095-100>107-115>123-129>135-141>148-156>162-174-175-181200-
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-
320 PM CDT TUE APR 17 2007

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH TEXAS.

.DAY ONE...TONIGHT

SHOWERS AND THUNDERSTORMS ARE EXPECTED ACROSS A LARGE PORTION OF
NORTH TEXAS THIS EVENING AND TONIGHT AS A STRONG UPPER LEVEL
DISTURBANCE CROSSES THE AREA. SOME OF THE STORMS WILL BECOME SEVERE
WITH LARGE HAIL BEING THE MAIN THREAT. A FEW OF THE STORMS MAY
ALSO PRODUCE DAMAGING WINDS...PRIMARILY IN THE LATE AFTERNOON AND
EARLY EVENING. THE GREATEST CHANCE FOR SEVERE WEATHER IS ACROSS
THE CENTRAL AND SOUTHERN PORTIONS OF NORTH TEXAS.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY

THERE IS A SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS SUNDAY AND
MONDAY ACROSS NORTH TEXAS.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL LIKELY BE REQUIRED THROUGHOUT NORTH TEXAS
TONIGHT.

DUNN

In the hours before

Special weather statement, Apr 17, 3:51 PM CDT, 1 hour 11 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE FORT WORTH TX
351 PM CDT TUE APR 17 2007

TXZ100-172115-
YOUNG TX-
351 PM CDT TUE APR 17 2007

...SIGNIFICANT WEATHER ADVISORY FOR...
  SOUTHERN YOUNG COUNTY

AT 351 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
STRONG THUNDERSTORM 16 MILES EAST OF THROCKMORTON...MOVING EAST AT
25 MPH.

CITIES IN THE PATH OF THIS STORM INCLUDE GRAHAM.

HALF INCH DIAMETER HAIL AND WIND GUSTS TO 40 MPH CAN BE EXPECTED
FROM THIS STORM.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 800 PM CDT
TUESDAY EVENING FOR NORTH CENTRAL TEXAS.

LAT...LON 3320 9895 3296 9895 3296 9843 3318 9842

DUNN

Special weather statement, Apr 17, 4:49 PM CDT, 13 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE FORT WORTH TX
449 PM CDT TUE APR 17 2007

TXZ142-172215-
MILLS TX-
449 PM CDT TUE APR 17 2007

...SIGNIFICANT WEATHER ADVISORY FOR...
  NORTHERN MILLS COUNTY

AT 449 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
STRONG THUNDERSTORM 11 MILES SOUTHWEST OF BROWNWOOD...MOVING EAST AT
35 MPH.

CITIES IN THE PATH OF THIS STORM INCLUDE BUFFALO AND MULLIN.

SMALL HAIL IS LIKELY WITH THIS STORM.

IF THIS STORM INTENSIFIES...A SEVERE WEATHER WARNING MAY BE NEEDED.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 800 PM CDT
TUESDAY EVENING FOR NORTH CENTRAL TEXAS.

LAT...LON 3166 9916 3143 9915 3144 9835 3172 9848

DUNN

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 17, 3:51 PM CDT	Special Weather Statement	FWD	Young	24 min
Apr 17, 4:01 PM CDT	Severe Thunderstorm Warning	FWD	Stephens	59 min
Apr 17, 4:49 PM CDT	Special Weather Statement	FWD	Mills	26 min
Apr 17, 5:18 PM CDT	Special Weather Statement	FWD	Comanche, Erath, Palo Pinto	57 min
Apr 17, 5:54 PM CDT	Special Weather Statement	FWD	Parker	66 min
Apr 17, 5:55 PM CDT	Severe Thunderstorm Warning	FWD	Erath, Hood, Somervell	65 min
Apr 17, 5:59 PM CDT	Special Weather Statement	FWD	Bosque	61 min
Apr 17, 6:29 PM CDT	Severe Thunderstorm Warning	FWD	Johnson	61 min
Apr 17, 6:33 PM CDT	Special Weather Statement	FWD	Denton, Tarrant	57 min
Apr 17, 6:55 PM CDT	Severe Thunderstorm Warning	FWD	Hill	65 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.