Alert archive / Texas / Special Weather Statements in 2012

Special Weather Statement, NWS Fort Worth, TX

July 8, 2012Denton County, Tarrant County, Texas

NWS Fort Worth, TX issued this special weather statement at Jul 8, 2012, 7:02 PM CDT for Denton County, Tarrant County, Texas. It was in force for 58 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 8, 2012, 7:02 PM CDT (00:02 UTC)
Expired: Jul 8, 2012, 8:00 PM CDT
In force: 58 min
Issued by: NWS Fort Worth, TX

Counties Denton County, TX, Tarrant County, TX

The radar

The Dallas/Ft Worth radar (KFWS), 39 km from the middle of the area, began a volume at 00:02 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

Shreveport, LA (KSHV), launched 00:00Z, 0.0 hours before the alert went out and 326 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: 1622 J/kg
Mixed-layer CIN: -19 J/kg
Mixed-layer LCL: 906 m above ground
0-6 km bulk shear: 15 kt
0-1 km storm-relative helicity: -52 m²/s²
0-3 km storm-relative helicity: -24 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 8, 5:57 PM CDT, 1 hour 5 minutes earlier.

Area forecast discussion, Jul 8, 5:57 PM CDT, 1 hour 5 minutes before

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Hazardous weather outlook, Jul 8, 3:30 PM CDT, 3 hours 32 minutes before

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In the hours before

Special weather statement, Jul 8, 2:56 PM CDT, 4 hours 6 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE FORT WORTH TX
256 PM CDT SUN JUL 8 2012

TXZ146-082030-
NAVARRO TX-
256 PM CDT SUN JUL 8 2012

...SIGNIFICANT WEATHER ADVISORY FOR...
  NAVARRO COUNTY

AT 256 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
STRONG THUNDERSTORM 6 MILES SOUTH OF CORSICANA...MOVING SOUTH AT 5
MPH.

PEA-SIZED HAIL AND WIND GUSTS TO 50 MPH CAN BE EXPECTED FROM THIS
STORM.

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

LAT...LON 3180 9649 3181 9671 3207 9690 3224 9657
      3195 9619
TIME...MOT...LOC 1956Z 008DEG 3KT 3199 9648

DUNN

Special weather statement, Jul 8, 3:27 PM CDT, 3 hours 35 minutes before

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Special weather statement, Jul 8, 4:39 PM CDT, 2 hours 23 minutes before

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Special weather statement, Jul 8, 5:24 PM CDT, 1 hour 38 minutes before

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Special weather statement, Jul 8, 6:31 PM CDT, 31 minutes before

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Special weather statement, Jul 8, 7:02 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
Jul 8, 8:00 PM CDT	Special Weather Statement	FWD	Delta	30 min
Jul 9, 2:05 PM CDT	Special Weather Statement	FWD	Jack	25 min
Jul 9, 4:31 PM CDT	Special Weather Statement	FWD	Bell	29 min
Jul 9, 5:00 PM CDT	Special Weather Statement	FWD	Bell	30 min
Jul 9, 5:31 PM CDT	Special Weather Statement	FWD	Falls	29 min
Jul 9, 5:45 PM CDT	Special Weather Statement	FWD	Fannin	30 min
Jul 9, 6:05 PM CDT	Special Weather Statement	FWD	Hopkins	25 min
Jul 9, 6:52 PM CDT	Special Weather Statement	FWD	Hopkins	23 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.