Alert archive / Texas / Severe Thunderstorm Warnings in 2005

Severe Thunderstorm Warning 296, NWS Fort Worth, TX

August 27, 2005Van Zandt County, Texas

NWS Fort Worth, TX issued this severe thunderstorm warning at Aug 27, 2005, 5:59 PM CDT for Van Zandt County, Texas. It was in force for 31 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
Aug 27, 2005, 5:59 PM CDT (22:59 UTC)
Expired
Aug 27, 2005, 6:30 PM CDT
In force
31 min
Issued by
NWS Fort Worth, TX
Area
Counties, with a storm outline in the text

County Van Zandt County, TX

The radar

The Dallas/Ft Worth radar (KFWS), 137 km from the middle of the area, began a volume at 23:00 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

Shreveport, LA (KSHV), launched 12:00Z, 11.0 hours before the alert went out and 196 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-pSkew-T log-p diagram, Shreveport, LA at 12:00Z on 2005-08-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 761 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Shreveport, LA at 12:00Z on 2005-08-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 6 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
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
761 J/kg
Mixed-layer CIN
-92 J/kg
Mixed-layer LCL
1432 m above ground
0-6 km bulk shear
9 kt
0-1 km storm-relative helicity
6 m²/s²
0-3 km storm-relative helicity
2 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 Aug 27, 3:37 PM CDT, 2 hours 22 minutes earlier.

Area forecast discussion, Aug 27, 3:37 PM CDT, 2 hours 22 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE FORT WORTH TX
337 PM CDT SAT AUG 27 2005

.DISCUSSION...
ANOTHER OUTFLOW BOUNDARY IS TREKKING SOUTHWARD TOWARD THE I-20
CORRIDOR THIS AFTERNOON. ISOLATED TO WIDELY SCATTERED SHOWERS AND
THUNDERSTORMS HAVE DEVELOPED MAINLY ACROSS THE NORTHERN THIRD...
NEAR SEVERAL OUTFLOW BOUNDARIES...AND IN THE EAST IN THE
AREA OF DEEPEST MOISTURE. THE FRONTAL BOUNDARY ACROSS OKLAHOMA
HAS BECOME MORE DIFFICULT TO ANALYZE THIS AFTERNOON. HOWEVER...WITH
THE UPPER RIDGE SHIFTING WESTWARD...UPPER FLOW WILL BECOME MORE
NORTHERLY. THIS ALONG WITH THE LARGE SCALE CIRCULATION AFFECTS
FROM HURRICANE KATRINA WILL RESULT IN SURFACE FLOW COMING AROUND
TO THE NORTHEAST TO NORTH AREAWIDE SUNDAY...AND CONTINUING OUT OF
THE NORTH TO NORTHWEST THROUGH MID WEEK. WARM AND DRY WEATHER IS
EXPECTED TUESDAY THROUGH THE END OF THE WORKWEEK. #58

&&

.PRELIMINARY POINT TEMPS/POPS...
DALLAS-FT. WORTH, TX  79 100  76  96 /  20  20  20  20
WACO, TX              77 100  74  97 /  20  20  20  20
PARIS, TX             75  97  73  93 /  30  20  20  20
DENTON, TX            75  99  73  96 /  20  20  20  20
MCKINNEY, TX          76  99  73  95 /  20  20  20  20
DALLAS, TX            81 100  75  96 /  20  20  20  20
TERRELL, TX           76  99  74  96 /  20  20  20  20
CORSICANA, TX         76  99  73  95 /  20  20  20  20
TEMPLE, TX            75  99  73  95 /  20  20  20  20

&&

.FWD WATCHES/WARNINGS/ADVISORIES...
HEAT ADVISORY UNTIL 6 PM SUNDAY FOR TXZ118-TXZ119.

&&

/58

In the hours before

Special weather statement, Aug 27, 2:15 PM CDT, 3 hours 44 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE FORT WORTH TX
215 PM CDT SAT AUG 27 2005

TXZ094-095-271945-

FANNIN-LAMAR-
215 PM CDT SAT AUG 27 2005

...SIGNIFICANT WEATHER UPDATE...

AT 215 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
STRONG THUNDERSTORM 24 MILES NORTHWEST OF PARIS...MOVING EAST AT 5
MPH.

CITIES IN THE PATH OF THIS STORM INCLUDE POWDERLY AND SUMNER. GUSTY
WINDS WILL ALSO AFFECT AREAS NEAR BONHAM AND HONEY GROVE BY 230 PM.

VERY HEAVY RAIN AND WIND GUSTS TO 50 MPH ARE LIKELY WITH THIS STORM.
Special weather statement, Aug 27, 4:06 PM CDT, 1 hour 53 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE FORT WORTH TX
406 PM CDT SAT AUG 27 2005

TXZ102-272130-

WISE-
406 PM CDT SAT AUG 27 2005

...SIGNIFICANT WEATHER UPDATE...

AT 406 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
STRONG THUNDERSTORM 8 MILES SOUTHWEST OF BRIDGEPORT...MOVING
NORTHWEST AT 5 MPH.

VERY HEAVY RAIN AND WIND GUSTS TO 50 MPH ARE LIKELY WITH THIS STORM.
Special weather statement, Aug 27, 4:28 PM CDT, 1 hour 31 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE FORT WORTH TX
428 PM CDT SAT AUG 27 2005

TXZ102-272200-

WISE-
428 PM CDT SAT AUG 27 2005

...SIGNIFICANT WEATHER UPDATE...

AT 428 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
STRONG THUNDERSTORM 5 MILES WEST OF BRIDGEPORT...MOVING NORTH AT 10
MPH.

CITIES IN THE PATH OF THIS STORM INCLUDE ALVORD...BRIDGEPORT AND
CHICO.

VERY HEAVY RAIN AND WIND GUSTS TO 50 MPH ARE LIKELY WITH THIS STORM.
Special weather statement, Aug 27, 5:30 PM CDT, 29 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE FORT WORTH TX
530 PM CDT SAT AUG 27 2005

TXZ121-272300-

KAUFMAN-
530 PM CDT SAT AUG 27 2005

...SIGNIFICANT WEATHER UPDATE...

AT 530 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
STRONG THUNDERSTORM OVER KAUFMAN...MOVING SOUTH AT 5 MPH.

CITIES IN THE PATH OF THIS STORM INCLUDE GRAYS PRAIRIE...KAUFMAN AND
KEMP.

VERY HEAVY RAIN AND WIND GUSTS TO 50 MPH ARE LIKELY WITH THIS STORM.
Special weather statement, Aug 27, 5:39 PM CDT, 20 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE FORT WORTH TX
539 PM CDT SAT AUG 27 2005

TXZ122-272315-

VAN ZANDT-
539 PM CDT SAT AUG 27 2005

...SIGNIFICANT WEATHER UPDATE...

AT 539 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
STRONG THUNDERSTORM 11 MILES EAST OF CANTON...MOVING SOUTH AT 15 MPH.

CITIES IN THE PATH OF THIS STORM INCLUDE CANTON AND VAN.

VERY HEAVY RAIN AND WIND GUSTS TO 50 MPH ARE LIKELY WITH THIS STORM.
Special weather statement, Aug 27, 5:45 PM CDT, 14 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Aug 27, 4:38 PM CDTSevere Thunderstorm WarningFWDHunt49 min
Aug 27, 5:34 PM CDTSevere Thunderstorm WarningFWDKaufman26 min
Aug 27, 6:08 PM CDTSevere Thunderstorm WarningFWDLeon23 min

Nearby

Severe Thunderstorm Warnings in Texas, 2005Every severe thunderstorm warning in 2005

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.