Alert archive / Texas / Tornado Warnings in 2010

Tornado Warning 35, NWS Fort Worth, TX

September 8, 2010Cooke County, Texas

NWS Fort Worth, TX issued this tornado warning at Sep 8, 2010, 7:21 PM CDT for Cooke 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: Sep 8, 2010, 7:21 PM CDT (00:21 UTC)
Expired: Sep 8, 2010, 8:00 PM CDT
In force: 39 min
Issued by: NWS Fort Worth, TX
Area: Storm-based polygon

County Cooke County, TX

The radar

The Dallas/Ft Worth radar (KFWS), 119 km from the middle of the area, began a volume at 00:24 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
Sep 8, 5:36 PM CDT	Tornado Watch	SPC	7 hr

The nearest sounding before it

Fort Worth, TX (KFWD), launched 00:00Z, 0.4 hours before the alert went out and 90 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: 2402 J/kg
Mixed-layer CIN: 0 J/kg
Mixed-layer LCL: 718 m above ground
0-6 km bulk shear: 27 kt
0-1 km storm-relative helicity: 151 m²/s²
0-3 km storm-relative helicity: 143 m²/s²
Significant tornado parameter: 1.2
Supercell composite: 7.5

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this tornado 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 tornado warning went out at Sep 8, 6:30 PM CDT, 51 minutes earlier.

Area forecast discussion, Sep 8, 6:30 PM CDT, 51 minutes before

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Hazardous weather outlook, Sep 8, 6:00 PM CDT, 1 hour 21 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE FORT WORTH TX
600 PM CDT WED SEP 8 2010

TXZ091>095-100>107-115>123-129>135-141>148-156>162-174-175-091215-
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-
600 PM CDT WED SEP 8 2010

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH TEXAS.

.DAY ONE...TONIGHT.
...TORNADOES POSSIBLE THROUGH THIS EVENING....
...FLOOD AND FLASH FLOOD THREAT CONTINUES...

A FLASH FLOOD WATCH IS IN EFFECT FOR MOST OF NORTH TEXAS.
ADDITIONAL RAINFALL AMOUNTS OF 1 TO 3 INCHES ARE POSSIBLE ACROSS
HALF OF THE REGION. ISOLATED TORNADOES ARE EXPECTED THIS EVENING.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY.
SCATTERED THUNDERSTORMS WILL LINGER ACROSS NORTH TEXAS ON
THURSDAY WITH THE BEST CHANCES ACROSS THE NORTHEAST SECTIONS
DURING THE MORNING HOURS. HEAVY RAIN IS LIKELY WITH THESE STORMS.

A SLIGHT CHANCE OF THUNDERSTORMS WILL RETURN TO THE REGION ON
SATURDAY.

.SPOTTER INFORMATION STATEMENT...
SPOTTER ACTIVATION FOR FUNNEL CLOUDS AND POSSIBLE TORNADOES IS
POSSIBLE ACROSS NORTH TEXAS THROUGH THIS EVENING. SPOTTER ACTIVATION
WILL LIKELY BE REQUESTED THROUGH TONIGHT FOR FLOODING REPORTS.

In the hours before

Local storm report, Sep 8, 5:20 PM CDT, 2 hours 1 minute before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE FORT WORTH TX
520 PM CDT WED SEP 08 2010

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

0515 PM     TORNADO          3 S FERRIS              32.49N  96.67W
09/08/2010                   ELLIS              TX   TRAINED SPOTTER

            SPOTTER REPORTED TORNADO 3 MILES SOUTH OF FERRIS.

Local storm report, Sep 8, 5:42 PM CDT, 1 hour 39 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE FORT WORTH TX
542 PM CDT WED SEP 08 2010

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

0536 PM     TORNADO          5 SW SEAGOVILLE         32.58N  96.59W
09/08/2010                   DALLAS             TX   BROADCAST MEDIA

            LIVE VIDEO OF TORNADO SOUTHWEST OF SEAGOVILLE.

Local storm report, Sep 8, 5:52 PM CDT, 1 hour 29 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE FORT WORTH TX
552 PM CDT WED SEP 08 2010

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

0551 PM     TORNADO          SEAGOVILLE              32.63N  96.53W
09/08/2010                   DALLAS             TX   BROADCAST MEDIA

            LIVE VIDEO OF TORNADO NEAR SEAGOVILLE.

Local storm report, Sep 8, 5:54 PM CDT, 1 hour 27 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE FORT WORTH TX
554 PM CDT WED SEP 08 2010

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

0554 PM     TORNADO          SEAGOVILLE              32.63N  96.53W
09/08/2010                   DALLAS             TX   AMATEUR RADIO

            DALLAS COUNTY RACES REPORTS DEBRIS ALONG HALL ST. IN
            SEAGOVILLE.

Local storm report, Sep 8, 6:17 PM CDT, 1 hour 4 minutes before

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Local storm report, Sep 8, 6:24 PM CDT, 57 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
Sep 8, 8:46 PM CDT	River Flood Warning	FWD	Collin	12 hr
Sep 8, 8:46 PM CDT	River Flood Warning	FWD	Ellis, Kaufman	3 days
Sep 8, 8:46 PM CDT	River Flood Warning	FWD	Henderson, Navarro	7 days
Sep 8, 8:46 PM CDT	River Flood Warning	FWD	Navarro	60 hr
Sep 9, 1:19 AM CDT	Special Weather Statement	FWD	Dallas, Rockwall	26 min
Sep 9, 5:02 AM CDT	Areal Flood Advisory	FWD	Bell	118 min
Sep 9, 1:11 PM CDT	River Flood Warning	FWD	Wise	20 hr

Nearby

Tornado Warnings in Texas, 2010 Every tornado warning in 2010 Tornadoes in 2010

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.