Alert archive / Texas / Severe Thunderstorm Warnings in 2008

Severe Thunderstorm Warning 239, NWS Fort Worth, TX

April 25, 20084 counties in Texas

NWS Fort Worth, TX issued this severe thunderstorm warning at Apr 25, 2008, 3:23 PM CDT for 4 counties in Texas. It was in force for 52 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 25, 2008, 3:23 PM CDT (20:23 UTC)
Expired: Apr 25, 2008, 4:15 PM CDT
In force: 52 min
Issued by: NWS Fort Worth, TX
Area: Storm-based polygon

Counties Ellis County, TX, Henderson County, TX, Kaufman County, TX, Navarro County, TX

The radar

The Dallas/Ft Worth radar (KFWS), 94 km from the middle of the area, began a volume at 20:25 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, 8.4 hours before the alert went out and 106 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: 1802 J/kg
Mixed-layer CIN: -149 J/kg
Mixed-layer LCL: 545 m above ground
0-6 km bulk shear: 24 kt
0-1 km storm-relative helicity: 280 m²/s²
0-3 km storm-relative helicity: 387 m²/s²
Significant tornado parameter: 0.7
Supercell composite: 4.2

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 25, 2:42 PM CDT, 41 minutes earlier.

Area forecast discussion, Apr 25, 2:42 PM CDT, 41 minutes before

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Hazardous weather outlook, Apr 25, 4:22 AM CDT, 11 hours 1 minute before

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In the hours before

Special weather statement, Apr 25, 1:44 PM CDT, 1 hour 39 minutes before

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Special weather statement, Apr 25, 2:10 PM CDT, 1 hour 13 minutes before

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Special weather statement, Apr 25, 2:26 PM CDT, 57 minutes before

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Special weather statement, Apr 25, 2:44 PM CDT, 39 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE FORT WORTH TX
244 PM CDT FRI APR 25 2008

TXZ134-252015-
ELLIS TX-
244 PM CDT FRI APR 25 2008

...SIGNIFICANT WEATHER ADVISORY FOR...
  ELLIS COUNTY

AT 244 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED
STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM 4 MILES EAST OF
WAXAHACHIE TO 15 MILES SOUTHWEST OF WAXAHACHIE...MOVING SOUTHEAST AT
19 MPH.

CITIES IN THE PATH OF THESE STORMS INCLUDE ITALY...PALMER AND
WAXAHACHIE.

PEA-SIZED HAIL AND WIND GUSTS TO 40 MPH CAN BE EXPECTED FROM THESE
STORMS.

LAT...LON 3246 9650 3207 9694 3224 9706 3251 9679
TIME...MOT...LOC 1944Z 295DEG 17KT 3240 9677 3221 9697

13

Special weather statement, Apr 25, 3:06 PM CDT, 17 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE FORT WORTH TX
306 PM CDT FRI APR 25 2008

TXZ121-252030-
KAUFMAN TX-
306 PM CDT FRI APR 25 2008

...SIGNIFICANT WEATHER ADVISORY FOR...
  WESTERN KAUFMAN COUNTY

AT 306 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
STRONG THUNDERSTORM 4 MILES SOUTHEAST OF SEAGOVILLE...MOVING EAST AT
22 MPH.

CITIES IN THE PATH OF THIS STORM INCLUDE COMBINE...CRANDALL...KAUFMAN
AND TERRELL.

PEA-SIZED HAIL AND WIND GUSTS TO 40 MPH CAN BE EXPECTED FROM THIS
STORM.

LAT...LON 3254 9652 3263 9652 3264 9651 3269 9651
      3270 9650 3275 9627 3253 9627
TIME...MOT...LOC 2006Z 265DEG 19KT 3262 9647

13

Special weather statement, Apr 25, 3:13 PM CDT, 10 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE FORT WORTH TX
313 PM CDT FRI APR 25 2008

TXZ134-145-252045-
ELLIS TX-HILL TX-
313 PM CDT FRI APR 25 2008

...SIGNIFICANT WEATHER ADVISORY FOR...
  SOUTHWESTERN ELLIS COUNTY
  CENTRAL HILL COUNTY

AT 313 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED
STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM 11 MILES SOUTH OF
WAXAHACHIE TO 9 MILES NORTHEAST OF HILLSBORO...MOVING EAST AT 20 MPH.

CITIES IN THE PATH OF THESE STORMS INCLUDE BARDWELL...CARLS CORNER
AND ITALY.

PEA-SIZED HAIL AND WIND GUSTS TO 40 MPH CAN BE EXPECTED FROM THESE
STORMS.

LAT...LON 3203 9719 3233 9683 3231 9652 3219 9667
      3219 9669 3209 9689 3207 9689 3203 9687
      3200 9690
TIME...MOT...LOC 2013Z 281DEG 17KT 3225 9679 3209 9698

13

The office that day

Everything else NWS Fort Worth, TX issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Apr 24, 8:14 PM CDT	River Flood Warning	FWD	Henderson, Navarro	49 hr
Apr 25, 1:44 PM CDT	Special Weather Statement	FWD	Dallas	31 min
Apr 25, 1:52 PM CDT	Severe Thunderstorm Warning	FWD	Dallas	38 min
Apr 25, 2:10 PM CDT	Special Weather Statement	FWD	Ellis	35 min
Apr 25, 2:26 PM CDT	Special Weather Statement	FWD	Rockwall	34 min
Apr 25, 2:44 PM CDT	Special Weather Statement	FWD	Ellis	31 min
Apr 25, 3:06 PM CDT	Special Weather Statement	FWD	Kaufman	24 min
Apr 25, 3:13 PM CDT	Special Weather Statement	FWD	Ellis	32 min
Apr 25, 3:34 PM CDT	Severe Thunderstorm Warning	FWD	Kaufman	41 min
Apr 25, 3:37 PM CDT	Severe Thunderstorm Warning	FWD	Ellis, Hill, Navarro	53 min
Apr 25, 3:45 PM CDT	Special Weather Statement	FWD	Hill	30 min
Apr 25, 4:02 PM CDT	Special Weather Statement	FWD	Bosque, Hill, McLennan	28 min
Apr 25, 4:06 PM CDT	Special Weather Statement	FWD	Lamar	24 min
Apr 25, 4:12 PM CDT	Severe Thunderstorm Warning	FWD	Bosque, Hill, McLennan	48 min
Apr 25, 4:15 PM CDT	Special Weather Statement	FWD	Navarro	30 min
Apr 25, 4:25 PM CDT	Severe Thunderstorm Warning	FWD	Henderson, Navarro	50 min
Apr 25, 4:27 PM CDT	Severe Thunderstorm Warning	FWD	Navarro	63 min
Apr 25, 4:38 PM CDT	Special Weather Statement	FWD	Lamar	37 min
Apr 25, 4:50 PM CDT	Tornado Warning	FWD	Hill, Limestone, Navarro	40 min
Apr 25, 4:58 PM CDT	Severe Thunderstorm Warning	FWD	Bell, Coryell, McLennan	62 min
Apr 25, 5:11 PM CDT	Severe Thunderstorm Warning	FWD	Anderson, Freestone, Henderson, Navarro	64 min
Apr 25, 5:29 PM CDT	Severe Thunderstorm Warning	FWD	Freestone, Limestone, Navarro	47 min
Apr 25, 5:37 PM CDT	Severe Thunderstorm Warning	FWD	Bell, Coryell, Falls, McLennan	53 min
Apr 25, 5:53 PM CDT	Tornado Warning	FWD	Bell	52 min
Apr 25, 6:07 PM CDT	Tornado Warning	FWD	Bell	38 min
Apr 25, 6:34 PM CDT	Severe Thunderstorm Warning	FWD	Navarro	41 min
Apr 25, 6:39 PM CDT	Tornado Warning	FWD	Bell	51 min
Apr 25, 6:42 PM CDT	Severe Thunderstorm Warning	FWD	Falls, Milam, Robertson	48 min
Apr 25, 6:50 PM CDT	Areal Flood Advisory	FWD	Bell	115 min

Nearby

Severe Thunderstorm Warnings in Texas, 2008 Every severe thunderstorm warning in 2008

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.