Alert archive / Texas / Severe Thunderstorm Warnings in 2008

Severe Thunderstorm Warning 393, NWS Fort Worth, TX

October 6, 2008Anderson County, Leon County, Texas

NWS Fort Worth, TX issued this severe thunderstorm warning at Oct 6, 2008, 9:46 PM CDT for Anderson County, Leon County, Texas. It was in force for 59 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: Oct 6, 2008, 9:46 PM CDT (02:46 UTC)
Expired: Oct 6, 2008, 10:45 PM CDT
In force: 59 min
Issued by: NWS Fort Worth, TX
Area: Storm-based polygon

Counties Anderson County, TX, Leon County, TX

The radar

The Ft Hood radar (KGRK), 175 km from the middle of the area, began a volume at 02:47 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, 2.8 hours before the alert went out and 198 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: 1452 J/kg
Mixed-layer CIN: -16 J/kg
Mixed-layer LCL: 854 m above ground
0-6 km bulk shear: 56 kt
0-1 km storm-relative helicity: 154 m²/s²
0-3 km storm-relative helicity: 175 m²/s²
Significant tornado parameter: 1.2
Supercell composite: 6.0

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 Oct 6, 6:22 PM CDT, 3 hours 24 minutes earlier.

Area forecast discussion, Oct 6, 6:22 PM CDT, 3 hours 24 minutes before

AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE FORT WORTH TX
622 PM CDT MON OCT 6 2008

.AVIATION...
00Z TAFS
TIMING OF SHRA/TSRA A BIT OF A CHALLENGE THROUGH THE LATE EVENING
HOURS. EXPECT BEST CHANCE FOR PRECIP AT METRO SITES FROM 01 TO
03Z. OFF AND ON SHOWERS ARE EXPECTED NEAR THE WACO TERMINAL
THROUGH MUCH OF THE NIGHT...AS SHOWERS DEVELOPING OVER THE HILL
COUNTRY MOVE ACROSS CENTRAL TEXAS.

COLD FRONT SHOULD PASS TAF SITES NEAR 11Z WITH GUSTY WINDS
ACCOMPANYING THE FRONT AND PERSISTING THROUGH TUESDAY. ALSO EXPECT
MVFR CIGS BEHIND THE FRONT THROUGH ABOUT 16 TO 17Z.

THANKS FORT WORTH CWSU FOR COLLABORATION.

&&

.PREV DISCUSSION... /ISSUED 300 PM CDT MON OCT 6 2008/
300 PM
UPPER LOW CENTERED OVER KANSAS THIS AFTERNOON. ASSOCIATED LIFT
CURRENTLY OVER NORTH TEXAS SHOULD BE MOVING EAST OF THE AREA
BEFORE NOON TOMORROW. HAVE LIKELY POPS IN THE SOUTH THROUGH
NORTHEAST THIS EVENING...BECOMING JUST A BIT OF LINGERING POPS
OVER THE FAR EAST AFTER SUNRISE. KEPT THE SHOWERS AND
THUNDERSTORM WORDING FOR EVENING...THEN EXPECT PRIMARILY SHOWERS
WITH POSSIBLE ISOLATED THUNDER AFTER MIDNIGHT. COLD FRONT SHOULD
ENTER NORTHWEST ZONES JUST AFTER MIDNIGHT...AND SWEEP ON THROUGH
THE SOUTHEAST ZONES BY EARLY AFTERNOON.

IN THE EXTENDED...12Z ECMWF RUN LOOKS VERY SIMILAR TO PREVIOUS
00Z ECMWF. 12Z GFS IS A MAJOR DEPARTURE FROM PREVIOUS GFS RUN. BOT
MODELS AGREE THAT DEEP UPPER LOW ENTERS GREAT BASIN SATURDAY...AND
ECMWF THEN MOVES IT NORTHEAST INTO UPPER PLAINS BY MONDAY MORNING.
OLD GFS BROUGHT UPPER LOW OVER THE TX/OK PANHANDLE BY MONDAY...NEW
GFS SENDS IT OVER NEBRASKA. WITH SO MUCH UNCERTAINTY AND LACK OF
RUN TO RUN CONTINUITY FROM THE GFS...HAVE NOT CHANGED PREVIOUS
EXTENDED FORECAST WHICH WAS BASED MORE ON THE ECMWF. ONLY
DEPARTURE FROM ECMWF IS THAT TEMPERATURES OVER THE WEEKEND
WERE MODERATED A BIT FOR CLOUD COVER AND CHANCE PRECIPITATION. 84

&&

.PRELIMINARY POINT TEMPS/POPS...
DALLAS-FT. WORTH, TX  62  81  55  86  57 /  60  10   5   0   0
WACO, TX              65  83  56  84  57 /  60  10   5   0   0
PARIS, TX             62  76  52  81  51 /  80  20   5   0   0
DENTON, TX            59  79  49  84  52 /  50   5   5   0   0
MCKINNEY, TX          60  81  48  84  51 /  70  10   5   0   0
DALLAS, TX            63  79  58  86  60 /  60  10   5   0   0
TERRELL, TX           64  78  53  83  54 /  70  10   5   0   0
CORSICANA, TX         62  83  54  85  56 /  70  10   5   0   0
TEMPLE, TX            65  84  54  85  56 /  60  10   5   0   0

&&

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

&&

Hazardous weather outlook, Oct 6, 7:30 PM CDT, 2 hours 16 minutes before

HAZARDOUS WEATHER OUTLOOK...UPDATED
NATIONAL WEATHER SERVICE FORT WORTH TX
730 PM CDT MON OCT 6 2008

TXZ091>095-100>107-115>123-129>135-141>148-156>162-174-175-071200-
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-
730 PM CDT MON OCT 6 2008

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH TEXAS.

.DAY ONE...TONIGHT.

THUNDERSTORMS WILL BE POSSIBLE THIS AFTERNOON AND TONIGHT. SOME
STORMS THIS AFTERNOON AND EARLY EVENING MAY BE SEVERE WITH LARGE
HAIL AND WINDS TO 60 MPH. FREQUENT CLOUD TO GROUND LIGHTNING MAY
ALSO ACCOMPANY THE STORMS. A TORNADO OR TWO WILL MAY ALSO OCCUR
SOUTHEAST OF A WACO TO ATHENS LINE.

ADDITIONAL STORMS WILL LINGER OVER NORTH TEXAS AFTER MIDNIGHT WITH
CLOUD TO GROUND LIGHTNING THE MAIN HAZARD.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY.
ISOLATED STORMS WILL BE POSSIBLE ALONG AND EAST OF A PARIS TO
CENTERVILLE LINE TUESDAY MORNING. OTHERWISE...STORMS WILL BE
POSSIBLE AGAIN SATURDAY AND SUNDAY.

.SPOTTER INFORMATION STATEMENT...
LIMITED SPOTTER ACTIVATION MAY BE REQUESTED SOUTH OF INTERSTATE 20.

In the hours before

Special weather statement, Oct 6, 9:02 PM CDT, 44 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE FORT WORTH TX
902 PM CDT MON OCT 6 2008

TXZ143-144-070230-
BOSQUE TX-HAMILTON TX-
902 PM CDT MON OCT 6 2008

...SIGNIFICANT WEATHER ADVISORY FOR...
  WEST CENTRAL BOSQUE COUNTY
  HAMILTON COUNTY

AT 902 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED
STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM 17 MILES SOUTHEAST
OF DUBLIN TO 21 MILES SOUTHWEST OF HAMILTON...MOVING EAST AT 37 MPH.

CITIES IN THE PATH OF THESE STORMS INCLUDE CRANFILLS GAP...
HAMILTON...HICO AND IREDELL.

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

IF THIS STORM INTENSIFIES...A SEVERE WEATHER WARNING MAY BE NEEDED.

LAT...LON 3181 9822 3184 9816 3188 9818 3195 9815
      3204 9797 3211 9768 3160 9791 3143 9826
      3155 9836
TIME...MOT...LOC 0202Z 257DEG 32KT 3196 9807 3147 9832

SCHULTZ

Local storm report, Oct 6, 9:03 PM CDT, 43 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE FORT WORTH TX
903 PM CDT MON OCT 06 2008

..TIME..    ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE..    ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0820 PM     HAIL             DUBLIN                  32.09N  98.34W
10/06/2008  E1.75 INCH       ERATH              TX   BROADCAST MEDIA

            MEDIA RELAYED REPORT OF GOLFBALL HAIL ON THE SOUTH SIDE
            OF DUBLIN

Special weather statement, Oct 6, 9:05 PM CDT, 41 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE FORT WORTH TX
905 PM CDT MON OCT 6 2008

TXZ103-104-070230-
DENTON TX-COLLIN TX-
905 PM CDT MON OCT 6 2008

...SIGNIFICANT WEATHER ADVISORY FOR...
  COLLIN COUNTY
  SOUTHEASTERN DENTON COUNTY

AT 905 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED
STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM 10 MILES NORTH OF
FRISCO TO FRISCO TO LEWISVILLE...MOVING EAST AT 37 MPH.

CITIES IN THE PATH OF THESE STORMS INCLUDE ALLEN...ANNA...CELINA...
FAIRVIEW...FRISCO...HEBRON...LEWISVILLE...LOWRY CROSSING...LUCAS...
MCKINNEY...MURPHY...PARKER...PLANO...PRINCETON...PROSPER...THE COLONY
AND WYLIE.

FREQUENT CLOUD TO GROUND LIGHTNING...VERY HEAVY RAINFALL...PEA-SIZED
HAIL...AND WIND GUSTS TO 50 MPH CAN BE EXPECTED FROM THESE STORMS.

IF THIS STORM INTENSIFIES...A SEVERE WEATHER WARNING MAY BE NEEDED.

LAT...LON 3337 9639 3301 9634 3299 9653 3299 9706
      3317 9687 3339 9688
TIME...MOT...LOC 0205Z 289DEG 32KT 3327 9680 3314 9676
          3300 9694

SCHULTZ

Special weather statement, Oct 6, 9:29 PM CDT, 17 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE FORT WORTH TX
929 PM CDT MON OCT 6 2008

TXZ132-133-143-144-156-157-070300-
JOHNSON TX-SOMERVELL TX-BOSQUE TX-HAMILTON TX-CORYELL TX-LAMPASAS TX-
929 PM CDT MON OCT 6 2008

...SIGNIFICANT WEATHER ADVISORY FOR...
  BOSQUE COUNTY
  NORTHWESTERN CORYELL COUNTY
  EASTERN HAMILTON COUNTY
  SOUTHWESTERN JOHNSON COUNTY
  NORTH CENTRAL LAMPASAS COUNTY
  SOMERVELL COUNTY

AT 929 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED
STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM 16 MILES SOUTH OF
GRANBURY TO 12 MILES EAST OF HAMILTON TO 21 MILES SOUTH OF
HAMILTON...MOVING EAST AT 25 MPH.

CITIES IN THE PATH OF THESE STORMS INCLUDE CLIFTON...CRANFILLS GAP...
EVANT...GLEN ROSE...IREDELL...MERIDIAN...CLEBURNE STATE PARK...
DINOSAUR VALLEY STATE PARK AND MERIDIAN STATE PARK.

FREQUENT CLOUD TO GROUND LIGHTNING...VERY HEAVY RAINFALL...PEA-SIZED
HAIL...AND WIND GUSTS TO 50 MPH CAN BE EXPECTED FROM THESE STORMS.

IF THIS STORM INTENSIFIES...A SEVERE WEATHER WARNING MAY BE NEEDED.

LAT...LON 3135 9838 3142 9826 3146 9829 3176 9803
      3206 9793 3210 9787 3215 9790 3229 9785
      3228 9739 3220 9742 3219 9746 3217 9745
      3214 9749 3203 9748 3175 9757 3133 9793
TIME...MOT...LOC 0229Z 272DEG 22KT 3221 9777 3176 9792
          3142 9821

SCHULTZ

Local storm report, Oct 6, 9:30 PM CDT, 16 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE FORT WORTH TX
930 PM CDT MON OCT 06 2008

..TIME..    ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE..    ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0929 PM     TSTM WND GST     FRANKSTON               32.06N  95.50W
10/06/2008  E60 MPH          ANDERSON           TX   TRAINED SPOTTER

            ALSO PEA-SIZE HAIL IN TOWN..

Local storm report, Oct 6, 9:45 PM CDT, 1 minute before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE FORT WORTH TX
945 PM CDT MON OCT 06 2008

..TIME..    ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE..    ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0829 PM     TORNADO          6 WSW MONTALBA          31.84N  95.82W
10/06/2008                   ANDERSON           TX   EMERGENCY MNGR

            EM REPORTED TORNADO IN TENNESSEE COLONY

The office that day

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

Issued	Product	Office	Counties	Lasted
Oct 6, 7:09 PM CDT	Special Weather Statement	FWD	Parker	36 min
Oct 6, 7:15 PM CDT	Areal Flood Advisory	FWD	Freestone, Limestone	3 hr
Oct 6, 7:19 PM CDT	Severe Thunderstorm Warning	FWD	Robertson	32 min
Oct 6, 7:25 PM CDT	Special Weather Statement	FWD	Parker	35 min
Oct 6, 7:29 PM CDT	Tornado Warning	FWD	Freestone, Limestone	46 min
Oct 6, 7:48 PM CDT	Severe Thunderstorm Warning	FWD	Denton, Wise	42 min
Oct 6, 7:57 PM CDT	Tornado Warning	FWD	Leon, Robertson	48 min
Oct 6, 8:07 PM CDT	Severe Thunderstorm Warning	FWD	Anderson, Freestone, Henderson	53 min
Oct 6, 8:10 PM CDT	Severe Thunderstorm Warning	FWD	Comanche, Erath	27 min
Oct 6, 8:16 PM CDT	Special Weather Statement	FWD	Mills	29 min
Oct 6, 8:35 PM CDT	Tornado Warning	FWD	Anderson, Henderson	40 min
Oct 6, 9:00 PM CDT	Tornado Warning	FWD	Freestone, Leon	45 min
Oct 6, 9:02 PM CDT	Special Weather Statement	FWD	Hamilton	28 min
Oct 6, 9:05 PM CDT	Special Weather Statement	FWD	Collin	25 min
Oct 6, 9:08 PM CDT	Severe Thunderstorm Warning	FWD	Collin	37 min
Oct 6, 9:11 PM CDT	Tornado Warning	FWD	Anderson, Henderson	19 min
Oct 6, 9:29 PM CDT	Special Weather Statement	FWD	Bosque, Somervell	31 min
Oct 6, 10:00 PM CDT	Special Weather Statement	FWD	Lampasas	30 min
Oct 6, 10:04 PM CDT	Flash Flood Warning	FWD	Anderson, Henderson	58 min
Oct 6, 11:54 PM CDT	Special Weather Statement	FWD	Navarro	36 min
Oct 7, 1:10 AM CDT	Special Weather Statement	FWD	Henderson, Van Zandt	35 min
Oct 7, 6:26 AM CDT	Wind Advisory	FWD	Bell, Bosque, Collin, Comanche, Cooke, Coryell and 23 more	12 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.