Alert archive / Texas / Special Weather Statements in 2012

Special Weather Statement, NWS Fort Worth, TX

July 9, 2012Kaufman County, Texas

NWS Fort Worth, TX issued this special weather statement at Jul 9, 2012, 8:11 PM CDT for Kaufman County, Texas. It was in force for 34 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
Jul 9, 2012, 8:11 PM CDT (01:11 UTC)
Expired
Jul 9, 2012, 8:45 PM CDT
In force
34 min
Issued by
NWS Fort Worth, TX

County Kaufman County, TX

The radar

The Dallas/Ft Worth radar (KFWS), 91 km from the middle of the area, began a volume at 01:11 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, 1.2 hours before the alert went out and 93 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, Fort Worth, TX at 00:00Z on 2012-07-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 743 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, Fort Worth, TX at 00:00Z on 2012-07-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -3 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
743 J/kg
Mixed-layer CIN
-8 J/kg
Mixed-layer LCL
1795 m above ground
0-6 km bulk shear
7 kt
0-1 km storm-relative helicity
-3 m²/s²
0-3 km storm-relative helicity
-10 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

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 Jul 9, 6:11 PM CDT, 2 hours earlier.

Area forecast discussion, Jul 9, 6:11 PM CDT, 2 hours before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE FORT WORTH TX
611 PM CDT MON JUL 9 2012

.AVIATION...
CONVECTION IS FOCUSING ACROSS BOTH THE SOUTHERN HALF OF NORTH
TEXAS WHERE MULTIPLE OUTFLOW BOUNDARIES ARE INTERACTING...AS WELL
AS NEAR THE RED RIVER IN THE VICINITY OF A WEAK FRONT. ACTIVITY
OVER SOUTHERN COUNTIES WILL AFFECT THE WACO TERMINAL FOR A FEW
MORE HOURS BEFORE DIMINISHING AFTER SUNSET...AND WILL STICK WITH
TS IN THE KACT TAF THROUGH 02Z.

STORMS NEAR THE RED RIVER ARE MOVING SOUTH IN EXCESS OF 20 KTS
BUT DECREASE RAPIDLY IN COVERAGE WEST OF FANNIN COUNTY. THERE
APPEARS TO BE AN AREA OF SUBSIDENCE ON THE BACK EDGE EDGE OF A
PERSISTENT WEAK UPPER TROUGH EXTENDING FROM THE MID MS VALLEY INTO
SOUTHEAST TX. MAY STILL INCLUDE CB WITH VCSH FOR A FEW MORE HOURS
IN THE METROPLEX DUE TO THE PRESENCE OF MESOSCALE BOUNDARIES AND
TEMPS IN THE 90S. THE 18Z RUN OF THE GFS WANTS TO DEVELOP A
NARROW BAND OF CONVECTION AFTER MIDNIGHT ALONG THE FRONT ROUGHLY
ALONG THE I 20 CORRIDOR. NOT READY BUY INTO THIS AT THIS TIME WITH
THE THOUGHT THAT STORMS WILL BE MORE LIKELY TO REDEVELOP
TOMORROW...AS THE SURFACE HEATS UP AND THE FRONT SERVES AS A
SURFACE FOCUS.

30

&&

.PREV DISCUSSION... /ISSUED 253 PM CDT MON JUL 9 2012/
VERY FEW CHANGES TO THIS PACKAGE. NORTH CENTRAL AND NORTHEAST
ZONES WERE COOLED A BIT BY THIS MORNING/S CONVECTION AND
CURRENTLY SIT IN A STORM FREE AREA SURROUNDED BY DEVELOPING
SHOWERS AND THUNDERSTORMS. HOWEVER...WITH ELEVATED INSTABILITY
CONTINUING AFTER MAX HEATING I CANNOT RULE OUT ANY AREAS FOR
POSSIBLE CONVECTION THIS EVENING AND OVERNIGHT. STORM CHANCES
APPEAR SLIGHTLY LOWER TOMORROW...BUT BY WEDNESDAY/THURSDAY DRIER
AIR MOVES INTO NORTHERN AREAS AND AND CONVECTION SHOULD BE
CONFINED MOSTLY TO AREAS SOUTH OF INTERSTATES 20/30.

GFS CONTINUES WET TREND INTO FRIDAY ACROSS THE AREA...BUT IT
SEEMS TO BE THE WET OUTLIER WITH NAM/EURO PREDICTING DRIER
CONDITIONS. WILL LEAVE LOW POPS CONFINED TO SOUTHEAST ZONES WHERE
COASTAL CONVECTION MAY APPROACH BY LATE AFTERNOON.

WITH DRIER CONDITIONS...A SLOW WARM UP BEGINS DURING THE WEEKEND
AND HIGHS SHOULD REACH MID 90S BY MONDAY.

&&

.PRELIMINARY POINT TEMPS/POPS...
DALLAS-FT. WORTH, TX  76  91  75  91  75 /  40  50  20  20  20
WACO, TX              74  91  73  90  73 /  50  50  40  40  30
PARIS, TX             73  88  71  89  71 /  40  40  20  20  10
DENTON, TX            74  90  73  91  72 /  40  40  20  20  10
MCKINNEY, TX          73  90  72  90  71 /  40  50  20  20  10
DALLAS, TX            77  90  76  91  75 /  40  50  20  20  20
TERRELL, TX           74  90  73  89  72 /  40  50  30  30  20
CORSICANA, TX         74  89  74  90  73 /  50  50  40  40  20
TEMPLE, TX            73  89  73  88  72 /  50  50  40  40  30
MINERAL WELLS, TX     73  89  72  90  71 /  50  40  20  20  20

&&

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

&&

30/
Hazardous weather outlook, Jul 9, 2:55 AM CDT, 17 hours 16 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE FORT WORTH TX
255 AM CDT MON JUL 9 2012

TXZ091>095-100>107-115>123-129>135-141>148-156>162-174-175-101200-
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-
255 AM CDT MON JUL 9 2012

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH TEXAS.

.DAY ONE...TODAY AND TONIGHT.

THERE IS A CHANCE OF THUNDERSTORMS ACROSS ALL OF NORTH TEXAS
TODAY AND TONIGHT. CLOUD TO GROUND LIGHTNING...GUSTY WINDS...AND
LOCALLY HEAVY RAIN WILL BE THE PRIMARY HAZARDS. LOCALIZED FLOODING
COULD OCCUR.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY.

THUNDERSTORMS WILL CONTINUE ACROSS THE REGION THROUGH WEDNESDAY
AND THEN RAIN CHANCES WILL END FROM NORTH TO SOUTH WEDNESDAY NIGHT
AND THURSDAY. CLOUD TO GROUND LIGHTNING...GUSTY WINDS...AND
LOCALLY HEAVY RAINFALL WILL BE THE PRIMARY HAZARDS. LOCALIZED
FLOODING COULD OCCUR AND THE HIGHEST POTENTIAL FOR LOCALIZED
FLOODING WILL BE ON TUESDAY.

THERE IS A SLIGHT CHANCE FOR THUNDERSTORMS SOUTHEAST OF A
CANTON...WACO...GOLDTHWAITE LINE FRIDAY THROUGH SUNDAY. THE CHANCE
FOR THUNDERSTORMS IS CONFINED TO THE AFTERNOON HOURS.

.SPOTTER INFORMATION STATEMENT...

VERY LIMITED SPOTTER ACTIVATION COULD BE REQUESTED THIS AFTERNOON
AND EVENING FOR STRONG STORMS WITH A THREAT FOR GUSTY DOWNBURST WINDS.

82/JLD

In the hours before

Special weather statement, Jul 9, 5:45 PM CDT, 2 hours 26 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE FORT WORTH TX
545 PM CDT MON JUL 9 2012

TXZ094-092315-
FANNIN TX-
545 PM CDT MON JUL 9 2012

...SIGNIFICANT WEATHER ADVISORY FOR...
  NORTHERN FANNIN COUNTY

AT 545 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
STRONG THUNDERSTORM 18 MILES NORTHEAST OF BONHAM...MOVING SOUTH AT 30
MPH.

CITIES IN THE PATH OF THIS STORM INCLUDE BONHAM...DODD CITY...HONEY
GROVE AND BONHAM STATE PARK.

WIND GUSTS TO 50 MPH...SMALL HAIL AND FREQUENT CLOUD TO GROUND
LIGHTNING CAN BE EXPECTED FROM THIS STORM.

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

LAT...LON 3385 9585 3353 9586 3353 9625 3376 9625
      3375 9622 3377 9617 3380 9617 3381 9618
      3384 9615 3385 9601 3388 9600 3387 9595
      3389 9593
TIME...MOT...LOC 2245Z 004DEG 24KT 3374 9597

DUNN
Special weather statement, Jul 9, 6:05 PM CDT, 2 hours 6 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE FORT WORTH TX
605 PM CDT MON JUL 9 2012

TXZ095-106-107-092330-
DELTA TX-HOPKINS TX-LAMAR TX-
605 PM CDT MON JUL 9 2012

...SIGNIFICANT WEATHER ADVISORY FOR...
  EAST CENTRAL DELTA COUNTY
  EASTERN HOPKINS COUNTY
  SOUTHEASTERN LAMAR COUNTY

AT 605 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
STRONG THUNDERSTORM 19 MILES NORTHEAST OF SULPHUR SPRINGS...MOVING
SOUTHWEST AT 20 MPH.

CITIES IN THE PATH OF THIS STORM INCLUDE BLOSSOM...COMO...DEPORT AND
SULPHUR SPRINGS.

WIND GUSTS TO 50 MPH...SMALL HAIL AND FREQUENT CLOUD TO GROUND
LIGHTNING CAN BE EXPECTED FROM THIS STORM.

LAT...LON 3296 9531 3296 9565 3366 9551 3367 9530
      3313 9530 3297 9530
TIME...MOT...LOC 2305Z 026DEG 17KT 3332 9538

DUNN
Special weather statement, Jul 9, 6:52 PM CDT, 1 hour 19 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE FORT WORTH TX
652 PM CDT MON JUL 9 2012

TXZ107-100015-
HOPKINS TX-
652 PM CDT MON JUL 9 2012

...SIGNIFICANT WEATHER ADVISORY FOR...
  HOPKINS COUNTY

AT 652 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
STRONG THUNDERSTORM 2 MILES EAST OF SULPHUR SPRINGS...MOVING
SOUTHWEST AT 35 MPH.

WIND GUSTS TO 50 MPH AND FREQUENT CLOUD TO GROUND LIGHTNING CAN BE
EXPECTED FROM THIS STORM.

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

LAT...LON 3295 9565 3298 9567 3299 9586 3322 9586
      3326 9579 3330 9575 3330 9568 3336 9559
      3335 9549 3337 9541 3336 9534 3337 9531
      3296 9531
TIME...MOT...LOC 2352Z 052DEG 29KT 3311 9560

DUNN
Special weather statement, Jul 9, 7:54 PM CDT, 17 minutes before
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Local storm report, Jul 9, 8:10 PM CDT, 1 minute before
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Special weather statement, Jul 9, 8:11 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.

IssuedProductOfficeCountiesLasted
Jul 9, 7:05 PM CDTSevere Thunderstorm WarningFWDHopkins, Rains25 min
Jul 9, 7:29 PM CDTSevere Thunderstorm WarningFWDRains, Van Zandt61 min
Jul 9, 7:54 PM CDTSpecial Weather StatementFWDEllis36 min
Jul 9, 8:35 PM CDTAreal Flood AdvisoryFWDEllis85 min

Nearby

Special Weather Statements in Texas, 2012Every 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.