Alert archive / Texas / Special Weather Statements in 2012

Special Weather Statement, NWS Fort Worth, TX

April 8, 2012Henderson County, Texas

NWS Fort Worth, TX issued this special weather statement at Apr 8, 2012, 4:55 PM CDT for Henderson County, Texas. It was in force for 35 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: Apr 8, 2012, 4:55 PM CDT (21:55 UTC)
Expired: Apr 8, 2012, 5:30 PM CDT
In force: 35 min
Issued by: NWS Fort Worth, TX

County Henderson County, TX

The radar

The Dallas/Ft Worth radar (KFWS), 146 km from the middle of the area, began a volume at 21:56 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, 9.9 hours before the alert went out and 155 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: 432 J/kg
Mixed-layer CIN: -104 J/kg
Mixed-layer LCL: 723 m above ground
0-6 km bulk shear: 30 kt
0-1 km storm-relative helicity: 134 m²/s²
0-3 km storm-relative helicity: 67 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.8

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 Apr 8, 3:54 PM CDT, 1 hour 1 minute earlier.

Area forecast discussion, Apr 8, 3:54 PM CDT, 1 hour 1 minute before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE FORT WORTH TX
354 PM CDT SUN APR 8 2012

.DISCUSSION...
A QUASI-STATIONARY FRONT EXTENDED SOUTH OF GILMER...WAXAHACHIE...
COMANCHE LINE. SHOWERS AND THUNDERSTORMS CONTINUE TO BE MOST
WIDESPREAD EAST OF A GAINESVILLE TO CLIFTON LINE. THIS ACTIVITY
WILL MOVE EAST AND PRODUCE HEAVY RAIN AND CLOUD TO GROUND
LIGHTNING. SOME SMALL HAIL AND WIND GUSTS TO 40 MPH ARE LIKELY
WITH THE STRONGER STORMS. WE STILL CAN NOT RULE OUT A COUPLE OF
STORMS NEAR AND SOUTH OF THE FRONT BECOMING SEVERE...WITH 1 INCH
HAIL AND WIND GUSTS OVER 60 MPH...THROUGH EARLY EVENING.
THUNDERSTORMS SHOULD TAPER OFF LATER IN THE EVENING.

THERE IS NOT MUCH OF A CHANGE IN REASONING FOR THE REST OF THE
FORECAST. NORTHWESTERLY FLOW ALOFT WILL KEEP A CHANCE OF SHOWERS
AND THUNDERSTORMS THROUGH WEDNESDAY. WE WILL SEE A LOW CHANCE OF
THUNDERSTORMS THURSDAY...WITH BETTER CHANCES RETURNING FOR THE
WEEKEND.

58

&&

.PRELIMINARY POINT TEMPS/POPS...
DALLAS-FT. WORTH, TX  63  80  62  79  62 /  20  20  40  30  20
WACO, TX              61  82  61  81  61 /  30  20  20  20  10
PARIS, TX             58  77  59  77  57 /  20  20  30  30  30
DENTON, TX            58  81  61  77  60 /  20  20  40  30  30
MCKINNEY, TX          57  78  61  78  60 /  20  20  40  30  30
DALLAS, TX            64  81  63  79  62 /  20  20  40  30  20
TERRELL, TX           60  80  61  79  60 /  20  20  30  30  30
CORSICANA, TX         61  81  61  80  61 /  30  20  30  30  20
TEMPLE, TX            61  81  61  81  61 /  30  20  20  20  10
MINERAL WELLS, TX     60  81  60  80  60 /  20  30  50  30  20

&&

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

&&

30/58

Hazardous weather outlook, Apr 8, 3:50 PM CDT, 1 hour 5 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE FORT WORTH TX
350 PM CDT SUN APR 8 2012

TXZ091>095-100>107-115>123-129>135-141>148-156>162-174-175-091215-
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-
350 PM CDT SUN APR 8 2012

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH TEXAS.

.DAY ONE...TONIGHT.
THERE IS A CHANCE OF THUNDERSTORMS ACROSS ALL OF NORTH TEXAS
TODAY. A FEW STORMS COULD BECOME SEVERE...MAINLY SOUTH OF I 20
WHERE THE ATMOSPHERE IS MOST UNSTABLE.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY.
THUNDERSTORM CHANCES CONTINUE THROUGH THE WEEK AS THE
FRONTAL SYSTEM LINGERS NEAR NORTH TEXAS AND A NUMBER OF UPPER
DISTURBANCES MOVE ACROSS THE AREA.

.SPOTTER INFORMATION STATEMENT...
LIMITED SPOTTER ACTIVATION MAY BE REQUESTED THIS AFTERNOON AND
TONIGHT...MAINLY FOR COUNTIES SOUTH OF I 20.

In the hours before

Special weather statement, Apr 8, 2:43 PM CDT, 2 hours 12 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE FORT WORTH TX
243 PM CDT SUN APR 8 2012

TXZ134-082015-
ELLIS TX-
243 PM CDT SUN APR 8 2012

...SIGNIFICANT WEATHER ADVISORY FOR...
  ELLIS COUNTY

AT 241 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
STRONG THUNDERSTORM 2 MILES NORTHEAST OF WAXAHACHIE...MOVING EAST AT
15 MPH. PENNY-SIZED HAIL CAN BE EXPECTED FROM THIS STORM.

OTHER STRONG STORMS ARE RAPIDLY DEVELOPING ALONG I-35E...THROUGHOUT
ELLIS COUNTY. ANY OF THESE STORMS MAY BE CAPABLE OF PRODUCING SMALL
HAIL.

LAT...LON 3228 9666 3216 9701 3226 9709 3236 9709
      3237 9708 3255 9690 3254 9653
TIME...MOT...LOC 1941Z 270DEG 14KT 3243 9681

25

Local storm report, Apr 8, 3:33 PM CDT, 1 hour 22 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE FORT WORTH TX
333 PM CDT SUN APR 08 2012

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

0245 PM     FLASH FLOOD      DALLAS                  32.77N  96.78W
04/08/2012                   DALLAS             TX   FIRE DEPT/RESCUE

            FIRE DEPT ASSISTING MOTORISTS FROM HIGH WATER ON CAMP
            WISDOM RD AND CHAUCHER (REDBIRD AREA)

Special weather statement, Apr 8, 3:47 PM CDT, 1 hour 8 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE FORT WORTH TX
347 PM CDT SUN APR 8 2012

TXZ144-145-082115-
HILL TX-BOSQUE TX-
347 PM CDT SUN APR 8 2012

...SIGNIFICANT WEATHER ADVISORY FOR...
  BOSQUE COUNTY
  HILL COUNTY

AT 346 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
STRONG THUNDERSTORM 13 MILES NORTHEAST OF CLIFTON...MOVING EAST AT 5
MPH.

PENNY-SIZED HAIL AND WIND GUSTS TO 50 MPH CAN BE EXPECTED FROM THIS
STORM. LAKE WHITNEY IS IN THE PATH OF THIS STORM.

LAT...LON 3221 9705 3206 9695 3207 9689 3196 9682
      3159 9761 3171 9769 3167 9777 3188 9791
TIME...MOT...LOC 2046Z 266DEG 4KT 3196 9747

25

Special weather statement, Apr 8, 4:21 PM CDT, 34 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE FORT WORTH TX
421 PM CDT SUN APR 8 2012

TXZ121-122-135-146-082145-
HENDERSON TX-KAUFMAN TX-NAVARRO TX-VAN ZANDT TX-
421 PM CDT SUN APR 8 2012

...SIGNIFICANT WEATHER ADVISORY FOR...
  SOUTHERN KAUFMAN COUNTY
  NORTHEASTERN NAVARRO COUNTY
  HENDERSON COUNTY
  SOUTHERN VAN ZANDT COUNTY

AT 417 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED TWO
STRONG THUNDERSTORMS...BOTH CAPABLE OF PRODUCING NICKEL-SIZED HAIL
AND WIND GUSTS TO 50 MPH. ONE STORM WAS LOCATED 13 MILES NORTH OF
CORSICANA IN FAR NORTHERN NAVARRO COUNTY. THE OTHER STORM WAS
LOCATED 9 MILES NORTHEAST OF GUN BARREL CITY IN SOUTHWESTERN VAN
ZANDT COUNTY.

OTHER STORMS ARE DEVELOPING ACROSS THE ADVISORY AREA. ANY STORM WILL
BE CAPABLE OF PRODUCING SMALL HAIL AND GUSTY WINDS.

IN ADDITION...HEAVY RAINFALL MAY RESULT IN FLOODING OF LOW-LYING
AREAS...SUCH AS DITCHES AND UNDERPASSES. DO NOT CROSS FLOODED ROADS.
TURN AROUND...DONT DROWN.

LAT...LON 3225 9546 3223 9548 3221 9546 3215 9547
      3207 9655 3222 9661 3232 9640 3235 9646
      3241 9643 3243 9646 3244 9645 3255 9559
      3248 9559 3235 9545
TIME...MOT...LOC 2117Z 273DEG 10KT 3240 9600 3226 9641

25

Local storm report, Apr 8, 4:24 PM CDT, 31 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE FORT WORTH TX
424 PM CDT SUN APR 08 2012

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

0421 PM     HAIL             PHALBA                  32.42N  95.98W
04/08/2012  E0.88 INCH       VAN ZANDT          TX   TRAINED SPOTTER

            NICKEL SIZE HAIL IN PHALBA WITH WIND GUSTS TO 50 MPH

Special weather statement, Apr 8, 4:55 PM CDT, 0 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE FORT WORTH TX
455 PM CDT SUN APR 8 2012

TXZ122-135-146-082230-
HENDERSON TX-NAVARRO TX-VAN ZANDT TX-
455 PM CDT SUN APR 8 2012

...SIGNIFICANT WEATHER ADVISORY FOR...
  EASTERN NAVARRO COUNTY
  HENDERSON COUNTY
  SOUTHERN VAN ZANDT COUNTY

AT 453 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED
NUMEROUS STRONG THUNDERSTORMS ALONG THE TRINITY RIVER VALLEY BETWEEN
CORSICANA AND ATHENS. OTHER STRONG STORMS WERE LOCATED IN
SOUTHWESTERN VAN ZANDT COUNTY AND IN EASTERN HENDERSON COUNTY. ALL
THE ACTIVITY IS MOVING EAST AT 10 MPH.

PENNY-SIZED HAIL AND WIND GUSTS TO 50 MPH CAN BE EXPECTED FROM THESE
STORMS.

LAT...LON 3203 9579 3201 9606 3189 9631 3221 9644
      3236 9615 3236 9608 3240 9608 3244 9599
      3244 9553 3236 9544 3228 9544 3223 9548
      3221 9546 3215 9547 3209 9542
TIME...MOT...LOC 2153Z 283DEG 10KT 3237 9593 3223 9620

25

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 8, 12:28 PM CDT	Areal Flood Advisory	FWD	Denton, Tarrant	3 hr
Apr 8, 1:49 PM CDT	Flash Flood Warning	FWD	Dallas, Tarrant	3 hr
Apr 8, 2:43 PM CDT	Special Weather Statement	FWD	Ellis	32 min
Apr 8, 3:47 PM CDT	Special Weather Statement	FWD	Bosque, Hill	28 min
Apr 8, 4:21 PM CDT	Special Weather Statement	FWD	Henderson	24 min
Apr 8, 5:12 PM CDT	Severe Thunderstorm Warning	FWD	Anderson, Henderson	63 min
Apr 8, 5:44 PM CDT	Severe Thunderstorm Warning	FWD	Anderson	61 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.