Alert archive / Texas / Severe Thunderstorm Warnings in 2006

Severe Thunderstorm Warning 78, NWS Fort Worth, TX

April 21, 2006Anderson County, Texas

NWS Fort Worth, TX issued this severe thunderstorm warning at Apr 21, 2006, 5:29 AM CDT for Anderson County, Texas. It was in force for 61 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 21, 2006, 5:29 AM CDT (10:29 UTC)
Expired: Apr 21, 2006, 6:30 AM CDT
In force: 61 min
Issued by: NWS Fort Worth, TX
Area: Counties, with a storm outline in the text

County Anderson County, TX

The radar

The Dallas/Ft Worth radar (KFWS), 177 km from the middle of the area, began a volume at 10:32 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, 10.5 hours before the alert went out and 191 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: 10 J/kg
Mixed-layer CIN: -34 J/kg
Mixed-layer LCL: 1007 m above ground
0-6 km bulk shear: 45 kt
0-1 km storm-relative helicity: 31 m²/s²
0-3 km storm-relative helicity: 330 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 21, 4:00 AM CDT, 1 hour 29 minutes earlier.

Area forecast discussion, Apr 21, 4:00 AM CDT, 1 hour 29 minutes before

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Hazardous weather outlook, Apr 20, 10:10 PM CDT, 7 hours 19 minutes before

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In the hours before

Special weather statement, Apr 21, 1:03 AM CDT, 4 hours 26 minutes before

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Special weather statement, Apr 21, 2:06 AM CDT, 3 hours 23 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE FORT WORTH TX
206 AM CDT FRI APR 21 2006

TXZ159-210730-

MCLENNAN-
206 AM CDT FRI APR 21 2006

...SIGNIFICANT WEATHER UPDATE...

AT 206 AM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
STRONG THUNDERSTORM 3 MILES NORTHWEST OF LACY-LAKEVIEW...MOVING EAST
AT 35 MPH.

CITIES IN THE PATH OF THIS STORM INCLUDE BELLMEAD...BEVERLY HILLS...
HALLSBURG...HEWITT...LACY-LAKEVIEW...MART...NORTHCREST...ROBINSON...
WACO AND WEST.

VERY HEAVY RAIN AND WIND GUSTS TO 40 MPH ARE LIKELY WITH THIS STORM.

Special weather statement, Apr 21, 5:20 AM CDT, 9 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
Apr 20, 7:47 PM CDT	Flash Flood Warning	FWD	Bell	3 hr
Apr 20, 7:55 PM CDT	Severe Thunderstorm Warning	FWD	Bell, Milam	65 min
Apr 20, 8:10 PM CDT	Severe Thunderstorm Warning	FWD	Falls	65 min
Apr 20, 8:34 PM CDT	Severe Thunderstorm Warning	FWD	Robertson	56 min

Nearby

Severe Thunderstorm Warnings in Texas, 2006 Every severe thunderstorm warning in 2006

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.