Alert archive / Texas / Severe Thunderstorm Warnings in 2008

Severe Thunderstorm Warning 207, NWS Fort Worth, TX

April 23, 2008Palo Pinto County, Texas

NWS Fort Worth, TX issued this severe thunderstorm warning at Apr 23, 2008, 5:54 PM CDT for Palo Pinto County, Texas. It was in force for 51 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 23, 2008, 5:54 PM CDT (22:54 UTC)
Expired: Apr 23, 2008, 6:45 PM CDT
In force: 51 min
Issued by: NWS Fort Worth, TX
Area: Storm-based polygon

County Palo Pinto County, TX

The radar

The Dyess AFB radar (KDYX), 91 km from the middle of the area, began a volume at 22:57 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
Apr 23, 3:25 PM CDT	Tornado Watch	SPC	8 hr

The nearest sounding before it

Fort Worth, TX (KFWD), launched 12:00Z, 10.9 hours before the alert went out and 96 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: 3092 J/kg
Mixed-layer CIN: -39 J/kg
Mixed-layer LCL: 632 m above ground
0-6 km bulk shear: 26 kt
0-1 km storm-relative helicity: -37 m²/s²
0-3 km storm-relative helicity: -83 m²/s²
Significant tornado parameter: 0.0
Supercell composite: -0.7

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 23, 3:28 PM CDT, 2 hours 26 minutes earlier.

Area forecast discussion, Apr 23, 3:28 PM CDT, 2 hours 26 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE FORT WORTH TX
328 PM CDT WED APR 23 2008

.DISCUSSION...
PER 18Z SOUNDING CAP REMAINS IN PLACE. IT WEAKENED AS THIS
MORNING/S VORT MAX MOVED OVER BUT DID NOT MIX OUT COMPLETELY.
THIS VORT MAX IS CURRENTLY KICKING UP STORMS IN NORTHEAST TX AND
IS LIKELY NO LONGER A FACTOR FOR OUR AREA. LATE THIS AFTN/EVENING
EXPECT NEW ENERGY TO MOVE ACROSS N CNTRL TX/WRN N TX AND PRODUCE
NEW STORMS...ESPECIALLY IN OUR NW THRU W COUNTIES. THIS ENERGY IS
ALREADY HELPING WEST TX STORMS GET GOING BUT IT CURRENTLY HAS
LOTS OF HELP FROM LLVL UPSLOPE FLOW AS WELL.

PRECIP SHOULD LAST THROUGH EARLY MORNING...ESPECIALLY NEAR THE
RED RIVER AND OKLAHOMA WHERE THE DYNAMICS ARE STRONGER. LARGE
HAIL IS THE MAIN THREAT WITH DAMAGING WINDS AS WELL...BUT
INCREASING SHEAR THIS EVENING MAY ALLOW AN ISOLATED TORNADO
THREAT MAINLY IN THE NORTHWEST THRU WEST.

THURSDAY SHOULD BE DRY MOST AREAS. DRY LINE SHOULD STAY WEST OF
US BUT WITH GOOD SHEAR AND INSTABILITY ISOLATED SEVERE STORMS MAY
KICK OFF THERE THURSDAY AFTN. IF THEY DRIFT EAST THEY SHOULD BE
WEAKENING AS THEY HIT THE CAPPED AIR OVER N TX BUT MAY LAST INTO
OUR WESTERN COUNTIES. I ADDED ISOLD THUNDERSTORMS IN THE WEST
THURS AFTN/EVE TO ACCOUNT FOR THESE STORMS.

NEXT COLD FRONT PROGGED TO MOVE ACROSS N TX ON FRIDAY BEGINNING
MID MORNING IN THE NORTHWEST. FRONT STALLS JUST SOUTH OF OUR AREA
AND KEEPS LOW THREAT OF POPS ACROSS SOUTH THRU SATURDAY. ANOTHER
COLD FRONT MOVES THRU SUNDAY WITH MORE POPS. THEN MODELS PROG US
TO DRY OUT BY SUNDAY EVENING AND THAT SHOULD CONTINUE THRU DAY 7.

&&

.PRELIMINARY POINT TEMPS/POPS...
DALLAS-FT. WORTH, TX  66  85  67  78  58 /  70  10  10  30  30
WACO, TX              68  86  68  79  60 /  50  10  10  30  50
PARIS, TX             66  82  65  74  56 /  90  20  10  30  30
DENTON, TX            65  85  67  77  55 /  80  10  10  20  20
MCKINNEY, TX          66  85  67  78  55 /  80  10  10  30  30
DALLAS, TX            67  86  68  78  59 /  70  10  10  30  30
TERRELL, TX           67  85  66  77  59 /  80  10  10  30  40
CORSICANA, TX         67  85  67  79  60 /  50  10  10  30  50
TEMPLE, TX            67  86  67  80  60 /  30  10  10  30  50

&&

.FWD WATCHES/WARNINGS/ADVISORIES...
NONE.
&&

84/84

In the hours before

Special weather statement, Apr 23, 5:00 PM CDT, 54 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE FORT WORTH TX
500 PM CDT WED APR 23 2008

TXZ100-115-129-232300-
YOUNG TX-STEPHENS TX-EASTLAND TX-
500 PM CDT WED APR 23 2008

...SIGNIFICANT WEATHER ADVISORY FOR...
  NORTHERN EASTLAND COUNTY
  STEPHENS COUNTY
  SOUTHERN YOUNG COUNTY

AT 500 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
CLUSTER OF VERY DANGEROUS THUNDERSTORMS WITH A HISTORY OF PRODUCING
TORNADOES. THESE STORMS WERE LOCATED 14 MILES WEST OF
ALBANY...MOVING EAST AT 38 MPH. ON THIS TRACK...THE STORMS WILL BE
APPROACHING YOUNG...STEPHENS...AND EASTLAND COUNTY AROUND 530 PM.

CITIES IN THE PATH OF THIS STORM INCLUDE BRECKENRIDGE...CISCO...
EASTLAND AND RANGER.

THIS IS A VERY DANGEROUS CLUSTER OF STORMS THAT HAS THE POTENTIAL TO
PRODUCE HAIL UP TO GOLFBALL SIZE...FREQUENT CLOUD TO GROUND
LIGHTNING...HEAVY RAINFALL...AND TORNADOES. RESIDENTS ARE URGED TO
TAKE SAFETY PRECAUTIONS NOW

IF THE STORM CONTINUES ON ITS PRESENT COURSE...WARNINGS WILL LIKELY
BE NEEDED.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 1100 PM CDT WEDNESDAY EVENING
FOR NORTH CENTRAL TEXAS.

LAT...LON 3296 9909 3295 9895 3307 9895 3307 9843
      3295 9842 3294 9857 3252 9857 3251 9847
      3234 9847 3225 9912
TIME...MOT...LOC 2200Z 274DEG 33KT 3273 9950

82/JLD

Special weather statement, Apr 23, 5:35 PM CDT, 19 minutes before

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Local storm report, Apr 23, 5:49 PM CDT, 5 minutes before

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Local storm report, Apr 23, 5:52 PM CDT, 2 minutes before

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Local storm report, Apr 23, 5:53 PM CDT, 1 minute before

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      <div class="status" id="status">Temporary Notice</div>
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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 23, 5:00 PM CDT	Special Weather Statement	FWD	Eastland, Stephens	60 min
Apr 23, 5:25 PM CDT	Tornado Warning	FWD	Stephens	65 min
Apr 23, 5:30 PM CDT	Severe Thunderstorm Warning	FWD	Eastland	45 min
Apr 23, 5:35 PM CDT	Special Weather Statement	FWD	Lamar	25 min
Apr 23, 5:38 PM CDT	Severe Thunderstorm Warning	FWD	Erath	52 min
Apr 23, 6:11 PM CDT	Severe Thunderstorm Warning	FWD	Eastland	64 min
Apr 23, 6:18 PM CDT	Special Weather Statement	FWD	Lamar	57 min
Apr 23, 6:28 PM CDT	Severe Thunderstorm Warning	FWD	Palo Pinto, Stephens	62 min
Apr 23, 6:34 PM CDT	Severe Thunderstorm Warning	FWD	Erath	41 min
Apr 23, 6:41 PM CDT	Tornado Warning	FWD	Erath, Palo Pinto	34 min
Apr 23, 6:53 PM CDT	Tornado Warning	FWD	Hood, Parker	67 min
Apr 23, 6:56 PM CDT	Flash Flood Warning	FWD	Eastland, Erath, Palo Pinto, Stephens	2 hr

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.