Alert archive / Texas / Severe Thunderstorm Warnings in 2013

Severe Thunderstorm Warning 56, NWS Fort Worth, TX

March 23, 20134 counties in Texas

NWS Fort Worth, TX issued this severe thunderstorm warning at Mar 23, 2013, 7:51 AM CDT for 4 counties in Texas. It was in force for 54 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: Mar 23, 2013, 7:51 AM CDT (12:51 UTC)
Expired: Mar 23, 2013, 8:45 AM CDT
In force: 54 min
Issued by: NWS Fort Worth, TX
Area: Storm-based polygon

Counties Dallas County, TX, Ellis County, TX, Johnson County, TX, Tarrant County, TX

The radar

The Dallas/Ft Worth radar (KFWS), 23 km from the middle of the area, began a volume at 12:54 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 12:00Z, 0.9 hours before the alert went out and 37 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: 674 m above ground
0-6 km bulk shear: 55 kt
0-1 km storm-relative helicity: -20 m²/s²
0-3 km storm-relative helicity: 75 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 Mar 23, 7:00 AM CDT, 51 minutes earlier.

Area forecast discussion, Mar 23, 7:00 AM CDT, 51 minutes before

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Hazardous weather outlook, Mar 23, 4:27 AM CDT, 3 hours 24 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE FORT WORTH TX
427 AM CDT SAT MAR 23 2013

TXZ091>095-100>107-115>123-129>135-141>148-156>162-174-175-240930-
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-
427 AM CDT SAT MAR 23 2013

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH TEXAS.

.DAY ONE...TODAY AND TONIGHT.
THUNDERSTORMS ARE EXPECTED TO SPREAD FROM WEST TO EAST ACROSS NORTH
TEXAS THIS MORNING. A FEW STORMS MAY BECOME SEVERE...WITH LARGE
HAIL BEING THE MAIN THREAT.

THUNDERSTORM CHANCES WILL CONTINUE EAST OF INTERSTATE 35 THIS
AFTERNOON WITH AN ATTENDANT RISK FOR QUARTER SIZE HAIL PERSISTING.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY.
THERE IS A CHANCE OF THUNDERSTORMS ACROSS ALL OF NORTH TEXAS ON
FRIDAY.

.SPOTTER INFORMATION STATEMENT...
LIMITED SPOTTER ACTIVATION MAY BE REQUESTED TODAY ACROSS ALL OF
NORTH TEXAS.

In the hours before

Special weather statement, Mar 23, 6:44 AM CDT, 1 hour 7 minutes before

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Local storm report, Mar 23, 6:50 AM CDT, 1 hour 1 minute before

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Special weather statement, Mar 23, 7:02 AM CDT, 49 minutes before

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Special weather statement, Mar 23, 7:07 AM CDT, 44 minutes before

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Special weather statement, Mar 23, 7:32 AM CDT, 19 minutes before

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Local storm report, Mar 23, 7:48 AM 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
Mar 23, 4:35 AM CDT	Special Weather Statement	FWD	Eastland	25 min
Mar 23, 5:08 AM CDT	Special Weather Statement	FWD	Eastland	37 min
Mar 23, 5:18 AM CDT	Severe Thunderstorm Warning	FWD	Erath	57 min
Mar 23, 5:37 AM CDT	Special Weather Statement	FWD	Eastland, Stephens	23 min
Mar 23, 5:47 AM CDT	Special Weather Statement	FWD	Hood, Somervell	28 min
Mar 23, 6:10 AM CDT	Special Weather Statement	FWD	Johnson	35 min
Mar 23, 6:13 AM CDT	Special Weather Statement	FWD	Eastland, Palo Pinto, Stephens	32 min
Mar 23, 6:22 AM CDT	Severe Thunderstorm Warning	FWD	Erath, Palo Pinto	53 min
Mar 23, 6:44 AM CDT	Special Weather Statement	FWD	Hood, Parker	31 min
Mar 23, 7:02 AM CDT	Special Weather Statement	FWD	Dallas, Ellis, Kaufman	28 min
Mar 23, 7:07 AM CDT	Special Weather Statement	FWD	Hood, Johnson, Somervell, Tarrant	23 min
Mar 23, 7:32 AM CDT	Special Weather Statement	FWD	Ellis, Johnson	28 min
Mar 23, 8:14 AM CDT	Severe Thunderstorm Warning	FWD	Kaufman	46 min
Mar 23, 8:40 AM CDT	Severe Thunderstorm Warning	FWD	Van Zandt	65 min
Mar 23, 10:44 AM CDT	Special Weather Statement	FWD	Anderson	31 min
Mar 23, 3:16 PM CDT	Special Weather Statement	FWD	Collin	29 min
Mar 23, 3:39 PM CDT	Wind Advisory	FWD	Anderson, Bell, Bosque, Collin, Comanche, Cooke and 40 more	24 hr

Nearby

Severe Thunderstorm Warnings in Texas, 2013 Every severe thunderstorm warning in 2013

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.