Alert archive / Texas / Special Weather Statements in 2012

Special Weather Statement, NWS Fort Worth, TX

August 9, 2012Bell County, Texas

NWS Fort Worth, TX issued this special weather statement at Aug 9, 2012, 6:19 PM CDT for Bell County, Texas. It was in force for 26 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Aug 9, 2012, 6:19 PM CDT (23:19 UTC)
Expired: Aug 9, 2012, 6:45 PM CDT
In force: 26 min
Issued by: NWS Fort Worth, TX

County Bell County, TX

The radar

The Ft Hood radar (KGRK), 19 km from the middle of the area, began a volume at 23:19 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, 11.3 hours before the alert went out and 218 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: 744 J/kg
Mixed-layer CIN: -194 J/kg
Mixed-layer LCL: 1351 m above ground
0-6 km bulk shear: 23 kt
0-1 km storm-relative helicity: 75 m²/s²
0-3 km storm-relative helicity: 145 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.9

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

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What forecasters said that day

The local office's own words before this special weather statement 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 special weather statement went out at Aug 9, 4:10 PM CDT, 2 hours 9 minutes earlier.

Area forecast discussion, Aug 9, 4:10 PM CDT, 2 hours 9 minutes before

AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE FORT WORTH TX
410 PM CDT THU AUG 9 2012

.UPDATE...
GOOD CUMULUS FIELDS HAVE DEVELOPED NORTHWEST OF A BONHAM...TO
CLEBURNE TO COMANCHE LINE...SO HAVE ADDED A MENTION OF
THUNDERSTORMS ACROSS THE REST OF THE FORECAST AREA. GIVEN THE
SOUNDINGS...AND THE 40 DEGREE PLUS DEW POINT DEPRESSIONS...STRONG
DOWNBURST WINDS WILL BE POSSIBLE.

58

&&

.PREV DISCUSSION... /ISSUED 301 PM CDT THU AUG 9 2012/
DRIER AIR HAS ENTERED NORTHWESTERN NORTH TEXAS WITH THE FRONT.
DEW POINTS ARE CURRENTLY IN THE LOWER 50S ALONG AND NORTHWEST OF
A LINE FROM BOWIE TO BRECKENRIDGE. THE FRONT SHOULD STALL ACROSS
THE AREA...POSSIBLY NEAR A LINE FROM PARIS TO DALLAS TO
COMANCHE...AND SLOWLY RETREAT NORTH THROUGH FRIDAY MORNING.

WATER VAPOR IMAGERY SHOWS VERY DRY AIR ALOFT OVER NORTH
TEXAS...AND ALTHOUGH LOW LEVEL INSTABILITY IS PRESENT MOST CELLS
THAT START ASCENDING WILL ENTRAIN A LOT OF DRY AIR AND LIKELY NOT
FORM STORMS. CAPE VALUES ABOVE 2000 J/KG EXIST IN THE FAR EASTERN
ZONES...AND HAVE KEPT LOW POPS SOUTH OF THE FRONT BECAUSE OF THE
DEEPER MOISTURE AND ADEQUATE INSTABILITY IN THOSE AREAS.

LOW PRECIP CHANCES WILL REMAIN IN THE SOUTH AND SOUTHEAST
OVERNIGHT AND INTO FRIDAY. THE WEEKEND SHOULD BE DRY...WITH
PRECIP CHANCES ON SUNDAY EVENING AND OVERNIGHT IN THE EAST AS THE
NEXT FRONT PUSHES INTO THE AREA ON MONDAY. THE RIDGE IS THEN
FORECAST TO SLIDE EAST OVER TEXAS BY MID WEEK...BUT THE RIDGE
FLATTENS OUT A BIT AS WELL AND HIGHS SHOULD ONLY BE A BIT WARMER
THAN EARLIER NEXT WEEK. 84

&&

.PRELIMINARY POINT TEMPS/POPS...
DALLAS-FT. WORTH, TX  77  96  73  98  77 /  20   5   5   5   5
WACO, TX              77  99  72  99  75 /  20  20  10   5   5
PARIS, TX             74  93  68  95  72 /  20  10   5   5   5
DENTON, TX            74  95  69  99  75 /  20   5   5   5   5
MCKINNEY, TX          74  95  68  98  74 /  20   5   5   5   5
DALLAS, TX            78  96  74  98  77 /  20   5   5   5   5
TERRELL, TX           76  97  71  99  74 /  20  10   5   5   5
CORSICANA, TX         77  98  73  99  75 /  20  20  10   5   5
TEMPLE, TX            76  99  73 100  74 /  20  20   5   5  10
MINERAL WELLS, TX     74  96  69  99  75 /  20   5   5   5   5

&&

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

&&

58/58

Hazardous weather outlook, Aug 9, 4:04 PM CDT, 2 hours 15 minutes before

HAZARDOUS WEATHER OUTLOOK...UPDATED
NATIONAL WEATHER SERVICE FORT WORTH TX
404 PM CDT THU AUG 9 2012

TXZ091>095-100>107-115>123-129>135-141>148-156>162-174-175-101230-
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-
404 PM CDT THU AUG 9 2012

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH TEXAS.

.DAY ONE...TONIGHT.
ISOLATED TO SCATTERED THUNDERSTORMS ARE POSSIBLE THROUGH TONIGHT.
THE PRIMARY HAZARDS WILL BE DAMAGING DOWNBURST WINDS AND HAIL UP
TO THE SIZE OF QUARTERS.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY.
THERE IS A SLIGHT CHANCE OF THUNDERSTORMS FRIDAY SOUTH OF A LINE
FROM GOLDTHWAITE...TO HILLSBORO...TO ATHENS. DAMAGING DOWNBURST
WINDS...SOME HAIL AND FREQUENT LIGHTNING WILL BE THE PRIMARY
HAZARDS.

.SPOTTER INFORMATION STATEMENT...
LIMITED SPOTTER ACTIVATION MAY BE REQUESTED THROUGH THIS EVENING.

In the hours before

Special weather statement, Aug 9, 4:52 PM CDT, 1 hour 27 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE FORT WORTH TX
452 PM CDT THU AUG 9 2012

TXZ095-092230-
LAMAR TX-
452 PM CDT THU AUG 9 2012

...SIGNIFICANT WEATHER ADVISORY FOR...
  NORTHWESTERN LAMAR COUNTY

AT 453 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
STRONG THUNDERSTORM 17 MILES SOUTHWEST OF HUGO...MOVING SOUTHEAST AT
20 MPH.

VERY HEAVY RAIN AND WIND GUSTS TO 50 MPH ARE LIKELY WITH THIS STORM.

LAT...LON 3369 9550 3359 9575 3381 9586 3384 9585
      3387 9581 3385 9577 3388 9577 3390 9575
      3389 9569 3391 9566
TIME...MOT...LOC 2153Z 334DEG 20KT 3388 9577

Special weather statement, Aug 9, 5:12 PM CDT, 1 hour 7 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE FORT WORTH TX
512 PM CDT THU AUG 9 2012

TXZ156>158-092245-
LAMPASAS TX-BELL TX-CORYELL TX-
512 PM CDT THU AUG 9 2012

...SIGNIFICANT WEATHER ADVISORY FOR...
  WEST CENTRAL BELL COUNTY
  SOUTH CENTRAL CORYELL COUNTY
  SOUTHEASTERN LAMPASAS COUNTY

AT 512 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
STRONG THUNDERSTORM 3 MILES WEST OF FORT HOOD...MOVING SOUTHWEST AT
20 MPH.

CITIES IN THE PATH OF THIS STORM INCLUDE COPPERAS COVE...FORT HOOD...
KILLEEN AND LAMPASAS.

VERY HEAVY RAIN AND WIND GUSTS TO 50 MPH ARE LIKELY WITH THIS STORM.

LAT...LON 3097 9788 3103 9792 3103 9808 3108 9823
      3128 9777 3096 9761
TIME...MOT...LOC 2212Z 045DEG 19KT 3112 9785

Special weather statement, Aug 9, 5:55 PM CDT, 24 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE FORT WORTH TX
555 PM CDT THU AUG 9 2012

TXZ095-106-107-092330-
DELTA TX-HOPKINS TX-LAMAR TX-
555 PM CDT THU AUG 9 2012

...SIGNIFICANT WEATHER ADVISORY FOR...
  EASTERN DELTA COUNTY
  NORTH CENTRAL HOPKINS COUNTY
  SOUTH CENTRAL LAMAR COUNTY

AT 555 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
STRONG THUNDERSTORM 10 MILES SOUTH OF PARIS...MOVING SOUTH AT 25 MPH.

CITIES IN THE PATH OF THIS STORM INCLUDE COOPER LAKE PARK DOCTORS
CREEK AND COOPER LAKE PARK SOUTH SULPHUR.

VERY HEAVY RAIN AND WIND GUSTS TO 50 MPH ARE LIKELY WITH THIS STORM.

LAT...LON 3324 9536 3318 9561 3355 9573 3361 9552
TIME...MOT...LOC 2255Z 342DEG 22KT 3349 9559

Special weather statement, Aug 9, 5:58 PM CDT, 21 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE FORT WORTH TX
558 PM CDT THU AUG 9 2012

TXZ145-092330-
HILL TX-
558 PM CDT THU AUG 9 2012

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

AT 559 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
STRONG THUNDERSTORM 7 MILES SOUTH OF HILLSBORO...MOVING SOUTH AT 10
MPH.

CITIES IN THE PATH OF THIS STORM INCLUDE BYNUM.

VERY HEAVY RAIN AND WIND GUSTS TO 50 MPH ARE LIKELY WITH THIS STORM.

LAT...LON 3179 9723 3199 9720 3199 9699 3178 9698
      3178 9699 3186 9704 3177 9723
TIME...MOT...LOC 2259Z 002DEG 8KT 3190 9710

Local storm report, Aug 9, 6:14 PM CDT, 5 minutes before

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Special weather statement, Aug 9, 6:19 PM CDT, 0 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
Aug 8, 7:49 PM CDT	Severe Thunderstorm Warning	FWD	Johnson, Tarrant	29 min
Aug 8, 8:07 PM CDT	Special Weather Statement	FWD	Lamar	38 min
Aug 8, 8:17 PM CDT	Severe Thunderstorm Warning	FWD	Fannin, Lamar	58 min
Aug 8, 9:13 PM CDT	Severe Thunderstorm Warning	FWD	Delta, Hopkins, Lamar	33 min
Aug 8, 11:26 PM CDT	Special Weather Statement	FWD	Ellis	34 min
Aug 9, 2:45 AM CDT	Special Weather Statement	FWD	Freestone	30 min
Aug 9, 3:14 PM CDT	Special Weather Statement	FWD	Coryell	31 min
Aug 9, 3:39 PM CDT	Special Weather Statement	FWD	Coryell	36 min
Aug 9, 4:07 PM CDT	Severe Thunderstorm Warning	FWD	Coryell	40 min
Aug 9, 4:24 PM CDT	Special Weather Statement	FWD	Fannin	36 min
Aug 9, 4:52 PM CDT	Special Weather Statement	FWD	Lamar	38 min
Aug 9, 5:12 PM CDT	Special Weather Statement	FWD	Lampasas	33 min
Aug 9, 5:55 PM CDT	Special Weather Statement	FWD	Delta	35 min
Aug 9, 5:58 PM CDT	Special Weather Statement	FWD	Hill	32 min

Nearby

Special Weather Statements in Texas, 2012 Every special weather statement in 2012

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.