Alert archive / Texas / Severe Thunderstorm Warnings in 2014

Severe Thunderstorm Warning 203, NWS Fort Worth, TX

July 23, 2014Fannin County, Texas

NWS Fort Worth, TX issued this severe thunderstorm warning at Jul 23, 2014, 6:36 PM CDT for Fannin County, Texas. It was in force for 24 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: Jul 23, 2014, 6:36 PM CDT (23:36 UTC)
Expired: Jul 23, 2014, 7:00 PM CDT
In force: 24 min
Issued by: NWS Fort Worth, TX
Area: Storm-based polygon

County Fannin County, TX

The radar

The Dallas/Ft Worth radar (KFWS), 159 km from the middle of the area, began a volume at 23:38 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
Jul 23, 4:04 PM CDT	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

Fort Worth, TX (KFWD), launched 12:00Z, 11.6 hours before the alert went out and 139 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: 392 J/kg
Mixed-layer CIN: -287 J/kg
Mixed-layer LCL: 1201 m above ground
0-6 km bulk shear: 18 kt
0-1 km storm-relative helicity: 17 m²/s²
0-3 km storm-relative helicity: 94 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 Jul 23, 6:18 PM CDT, 18 minutes earlier.

Area forecast discussion, Jul 23, 6:18 PM CDT, 18 minutes before

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Hazardous weather outlook, Jul 23, 3:04 PM CDT, 3 hours 32 minutes before

HAZARDOUS WEATHER OUTLOOK...UPDATED
NATIONAL WEATHER SERVICE FORT WORTH TX
304 PM CDT WED JUL 23 2014

TXZ091>095-100>107-115>123-129>135-141>148-156>162-174-175-241230-
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-
304 PM CDT WED JUL 23 2014

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH TEXAS.

.DAY ONE...THIS AFTERNOON AND TONIGHT.

A COMPLEX OF THUNDERSTORMS IS EXPECTED TO MOVE INTO THE REGION
FROM THE NORTHEAST THIS EVENING. THUNDERSTORMS WILL BE
POSSIBLE NORTH OF A LINE FROM PALESTINE TO MERIDIAN TO JACKSBORO
THROUGH MIDNIGHT. A FEW STORMS COULD BE STRONG OR MARGINALLY
SEVERE THIS EVENING...PRODUCING DAMAGING WINDS AND FREQUENT
LIGHTNING. SOME HAIL WILL ALSO BE POSSIBLE.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY.

A HEAT ADVISORY IS IN EFFECT FOR MOST OF THE REGION THURSDAY
THROUGH FRIDAY. HEAT INDEX VALUES ON BOTH OF THE AFTERNOONS WILL
BE AT OR OVER 105 DEGREES.

THERE IS A SLIGHT CHANCE OF THUNDERSTORMS THURSDAY AFTERNOON EAST
OF A LINE FROM BONHAM TO CORSICANA TO HEARNE.

THERE IS A SLIGHT CHANCE OF THUNDERSTORMS MONDAY AFTERNOON AND
TUESDAY OVER ALL OF NORTH TEXAS.

.SPOTTER INFORMATION STATEMENT...

LIMITED SPOTTER ACTIVATION MAY BE REQUESTED THIS EVENING TO THE
NORTHEAST OF A LINE FROM BOWIE TO CLEBURNE TO ATHENS.

82/JLD

In the hours before

Local storm report, Jul 23, 6:26 PM CDT, 10 minutes before

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Special weather statement, Jul 23, 6:33 PM CDT, 3 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
Jul 23, 2:34 PM CDT	Heat Advisory	FWD	Anderson, Bell, Bosque, Collin, Cooke, Dallas and 31 more	24 hr
Jul 23, 5:32 PM CDT	Severe Thunderstorm Warning	FWD	Lamar	58 min
Jul 23, 5:59 PM CDT	Severe Thunderstorm Warning	FWD	Fannin	61 min
Jul 23, 6:33 PM CDT	Special Weather Statement	FWD	Delta, Hopkins	27 min
Jul 23, 6:59 PM CDT	Special Weather Statement	FWD	Hunt, Rains	61 min

Nearby

Severe Thunderstorm Warnings in Texas, 2014 Every severe thunderstorm warning in 2014

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.