Alert archive / Texas / Special Weather Statements in 2012

Special Weather Statement, NWS Fort Worth, TX

November 3, 2012Ellis County, Texas

NWS Fort Worth, TX issued this special weather statement at Nov 3, 2012, 9:01 PM CDT for Ellis County, Texas. It was in force for 29 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: Nov 3, 2012, 9:01 PM CDT (02:01 UTC)
Expired: Nov 3, 2012, 9:30 PM CDT
In force: 29 min
Issued by: NWS Fort Worth, TX

County Ellis County, TX

The radar

The Dallas/Ft Worth radar (KFWS), 69 km from the middle of the area, began a volume at 02:02 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, 2.0 hours before the alert went out and 79 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: 257 J/kg
Mixed-layer CIN: -100 J/kg
Mixed-layer LCL: 1959 m above ground
0-6 km bulk shear: 25 kt
0-1 km storm-relative helicity: 39 m²/s²
0-3 km storm-relative helicity: 34 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 Nov 3, 7:17 PM CDT, 1 hour 44 minutes earlier.

Area forecast discussion, Nov 3, 7:17 PM CDT, 1 hour 44 minutes before

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Hazardous weather outlook, Nov 3, 6:16 PM CDT, 2 hours 45 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE FORT WORTH TX
616 PM CDT SAT NOV 3 2012

TXZ091>095-100>107-115>123-129>135-141>148-156>162-174-175-041215-
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-
616 PM CDT SAT NOV 3 2012

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH TEXAS.

.DAY ONE...TONIGHT.
THERE IS A CHANCE OF THUNDERSTORMS TONIGHT ALONG AND SOUTHEAST OF
A COMANCHE TO DALLAS TO PARIS LINE. THROUGH SUNSET...A FEW STORMS
COULD PRODUCE SMALL HAIL AND WIND GUSTS OVER 40 MPH.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY.
THERE IS A CHANCE OF THUNDERSTORMS GENERALLY ALONG AND SOUTHEAST
OF A COMANCHE TO EMORY LINE ON SUNDAY. SEVERE WEATHER IS NOT
EXPECTED. ISOLATED THUNDERSTORMS ARE POSSIBLE MONDAY MAINLY
SOUTH OF I-20.

.SPOTTER INFORMATION STATEMENT...
SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

In the hours before

Special weather statement, Nov 3, 6:38 PM CDT, 2 hours 23 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE FORT WORTH TX
638 PM CDT SAT NOV 3 2012

TXZ105-120-040000-
HUNT TX-ROCKWALL TX-
638 PM CDT SAT NOV 3 2012

...SIGNIFICANT WEATHER ADVISORY FOR...
  SOUTHWESTERN HUNT COUNTY
  EASTERN ROCKWALL COUNTY

AT 637 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
STRONG THUNDERSTORM 12 MILES SOUTHWEST OF GREENVILLE...MOVING WEST AT
5 MPH.

CITIES IN THE PATH OF THIS STORM INCLUDE ROYSE CITY.

FREQUENT CLOUD TO GROUND LIGHTNING...VERY HEAVY RAINFALL...HAIL TO
1/2 INCH IN DIAMETER...AND WIND GUSTS TO 40 MPH CAN BE EXPECTED FROM
THIS STORM.

LAT...LON 3307 9607 3285 9616 3284 9635 3298 9634
      3298 9630 3306 9629
TIME...MOT...LOC 2337Z 070DEG 2KT 3298 9623

Local storm report, Nov 3, 7:28 PM CDT, 1 hour 33 minutes before

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Local storm report, Nov 3, 7:38 PM CDT, 1 hour 23 minutes before

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Special weather statement, Nov 3, 8:06 PM CDT, 55 minutes before

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Special weather statement, Nov 3, 8:28 PM CDT, 33 minutes before

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Special weather statement, Nov 3, 9:01 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
Nov 3, 7:11 PM CDT	Severe Thunderstorm Warning	FWD	Hunt, Kaufman, Rockwall	51 min
Nov 3, 8:06 PM CDT	Special Weather Statement	FWD	Kaufman	24 min
Nov 3, 8:28 PM CDT	Special Weather Statement	FWD	Ellis	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.