Alert archive / Texas / Special Weather Statements in 2012

Special Weather Statement, NWS Fort Worth, TX

August 9, 2012Freestone County, Texas

NWS Fort Worth, TX issued this special weather statement at Aug 9, 2012, 2:45 AM CDT for Freestone County, Texas. It was in force for 30 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Aug 9, 2012, 2:45 AM CDT (07:45 UTC)
Expired: Aug 9, 2012, 3:15 AM CDT
In force: 30 min
Issued by: NWS Fort Worth, TX

County Freestone County, TX

The radar

The Dallas/Ft Worth radar (KFWS), 132 km from the middle of the area, began a volume at 07:48 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, 7.8 hours before the alert went out and 153 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: 315 J/kg
Mixed-layer CIN: -60 J/kg
Mixed-layer LCL: 2485 m above ground
0-6 km bulk shear: 7 kt
0-1 km storm-relative helicity: 2 m²/s²
0-3 km storm-relative helicity: 88 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

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What forecasters said that day

The local office's own words before this special weather statement 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 special weather statement went out at Aug 9, 12:01 AM CDT, 2 hours 44 minutes earlier.

Area forecast discussion, Aug 9, 12:01 AM CDT, 2 hours 44 minutes before

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Hazardous weather outlook, Aug 8, 9:00 PM CDT, 5 hours 45 minutes before

HAZARDOUS WEATHER OUTLOOK...UPDATED
NATIONAL WEATHER SERVICE FORT WORTH TX
900 PM CDT WED AUG 8 2012

TXZ091>095-100>107-115>123-129>135-141>148-156>162-174-175-100200-
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-
900 PM CDT WED AUG 8 2012

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH TEXAS.

.DAY ONE...TONIGHT.
ISOLATED THUNDERSTORMS ARE POSSIBLE TONIGHT ACROSS ALL OF NORTH
TEXAS WITH THE BEST CHANCES BEING EAST OF A GAINESVILLE TO CANTON
LINE THROUGH MIDNIGHT. THE PRIMARY HAZARDS WILL BE DAMAGING DOWNBURST
WINDS AND HAIL UP TO THE SIZE OF QUARTERS THROUGH MIDNIGHT.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY.
THUNDERSTORM CHANCES WILL CONTINUE ACROSS NORTH TEXAS THURSDAY
WITH STORM CHANCES DECREASING FROM NORTH TO SOUTH THURSDAY NIGHT
THROUGH FRIDAY EVENING. DAMAGING DOWNBURST WINDS...SOME HAIL AND
FREQUENT LIGHTNING WILL BE THE PRIMARY HAZARDS.

.SPOTTER INFORMATION STATEMENT...
SPOTTER ACTIVATION MAY BE REQUESTED EAST OF A GAINESVILLE TO
CANTON BEFORE MIDNIGHT.

In the hours before

Local storm report, Aug 8, 9:02 PM CDT, 5 hours 43 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE FORT WORTH TX
902 PM CDT WED AUG 08 2012

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

0855 PM     TSTM WND DMG     10 WNW PARIS            33.71N  95.69W
08/08/2012                   LAMAR              TX   LAW ENFORCEMENT

            TREES DOWN THROUGHOUT THE WESTERN PORTIONS OF THE COUNTY

Special weather statement, Aug 8, 11:26 PM CDT, 3 hours 19 minutes before

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Special weather statement, Aug 9, 2:45 AM CDT, 0 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
Aug 8, 7:49 PM CDT	Severe Thunderstorm Warning	FWD	Johnson, Tarrant	29 min
Aug 8, 8:07 PM CDT	Special Weather Statement	FWD	Lamar	38 min
Aug 8, 8:17 PM CDT	Severe Thunderstorm Warning	FWD	Fannin, Lamar	58 min
Aug 8, 9:13 PM CDT	Severe Thunderstorm Warning	FWD	Delta, Hopkins, Lamar	33 min
Aug 8, 11:26 PM CDT	Special Weather Statement	FWD	Ellis	34 min
Aug 9, 3:14 PM CDT	Special Weather Statement	FWD	Coryell	31 min
Aug 9, 3:39 PM CDT	Special Weather Statement	FWD	Coryell	36 min
Aug 9, 4:07 PM CDT	Severe Thunderstorm Warning	FWD	Coryell	40 min
Aug 9, 4:24 PM CDT	Special Weather Statement	FWD	Fannin	36 min
Aug 9, 4:52 PM CDT	Special Weather Statement	FWD	Lamar	38 min
Aug 9, 5:12 PM CDT	Special Weather Statement	FWD	Lampasas	33 min
Aug 9, 5:55 PM CDT	Special Weather Statement	FWD	Delta	35 min
Aug 9, 5:58 PM CDT	Special Weather Statement	FWD	Hill	32 min
Aug 9, 6:19 PM CDT	Special Weather Statement	FWD	Bell	26 min

Nearby

Special Weather Statements in Texas, 2012 Every special weather statement in 2012

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.