Alert archive / Texas / Special Weather Statements in 2017

Special Weather Statement, NWS Fort Worth, TX

July 4, 20175 counties in Texas

NWS Fort Worth, TX issued this special weather statement at Jul 4, 2017, 4:02 AM CDT for 5 counties in Texas. It was in force for 43 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 4, 2017, 4:02 AM CDT (09:02 UTC)
Expired
Jul 4, 2017, 4:45 AM CDT
In force
43 min
Issued by
NWS Fort Worth, TX

Counties Henderson County, TX, Hopkins County, TX, Kaufman County, TX, Rains County, TX, Van Zandt County, TX

The radar

The Dallas/Ft Worth radar (KFWS), 136 km from the middle of the area, began a volume at 09:05 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, 9.0 hours before the alert went out and 135 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 2017-07-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1429 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 2017-07-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -9 square meters per square second.193958Sfc1 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
1429 J/kg
Mixed-layer CIN
-100 J/kg
Mixed-layer LCL
1780 m above ground
0-6 km bulk shear
29 kt
0-1 km storm-relative helicity
-9 m²/s²
0-3 km storm-relative helicity
86 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

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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 4, 3:33 AM CDT, 29 minutes earlier.

Area forecast discussion, Jul 4, 3:33 AM CDT, 29 minutes before
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Hazardous weather outlook, Jul 3, 3:48 PM CDT, 12 hours 14 minutes before
Hazardous Weather Outlook
National Weather Service Fort Worth TX
348 PM CDT Mon Jul 3 2017

TXZ091>095-100>107-115>123-129>135-141>148-156>162-174-175-041200-
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-
348 PM CDT Mon Jul 3 2017

This Hazardous Weather Outlook is for North and Central Texas.

.DAY ONE...Tonight.

Another complex of storms is expected to move into North Texas from
the northwest tonight, affecting areas along and northwest of a
Comanche to DFW to Emory line before daybreak. A few storms could be
strong or severe with a threat for damaging downburst winds and hail
near the size of a quarter. Heavy rainfall may result in isolated
flooding problems, especially if heavy rain falls in Fannin and
Lamar counties where several inches of rain have already fallen.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

On Independence Day, some locations will see the heat index rise to
near or slightly above 105 degrees. Those outdoors need to take
precautions to remain safe in the heat.

There is a chance for thunderstorms north of a Comanche to Hillsboro
to Athens line on Tuesday and Tuesday night. Some of these storms, in
particular during the afternoon and evening hours, could be strong
or severe with a threat for damaging downburst winds, hail near the
size of a quarter, and heavy rainfall that may result in flooding
problems.

Thunderstorm chances will continue Wednesday and Wednesday night
across most of the region, and then east of Interstate 35 on
Thursday. A few storms on Wednesday may be strong or severe producing
damaging winds and heavy rainfall that may result in flooding
problems.

There is a chance for thunderstorms east of Interstate 45 and Highway
75 on Saturday.

.SPOTTER INFORMATION STATEMENT...
Limited spotter activation may be requested overnight along and
northwest of a Comanche to DFW to Emory line.

JLDunn

In the hours before

Special weather statement, Jul 4, 2:34 AM CDT, 1 hour 28 minutes before
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Special weather statement, Jul 4, 2:45 AM CDT, 1 hour 17 minutes before
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Special weather statement, Jul 4, 3:04 AM CDT, 58 minutes before
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Special weather statement, Jul 4, 3:18 AM CDT, 44 minutes before
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Special weather statement, Jul 4, 3:28 AM CDT, 34 minutes before
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Special weather statement, Jul 4, 4:02 AM 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 3, 11:54 PM CDTSpecial Weather StatementFWDMontague51 min
Jul 4, 12:13 AM CDTSpecial Weather StatementFWDJack, Young47 min
Jul 4, 12:16 AM CDTSpecial Weather StatementFWDCooke59 min
Jul 4, 12:24 AM CDTSevere Thunderstorm WarningFWDCooke, Montague, Wise36 min
Jul 4, 12:27 AM CDTSevere Thunderstorm WarningFWDJack, Young48 min
Jul 4, 12:38 AM CDTSpecial Weather StatementFWDPalo Pinto, Stephens37 min
Jul 4, 12:52 AM CDTSpecial Weather StatementFWDDenton53 min
Jul 4, 1:00 AM CDTSpecial Weather StatementFWDWise30 min
Jul 4, 1:13 AM CDTSpecial Weather StatementFWDParker, Tarrant62 min
Jul 4, 1:45 AM CDTSpecial Weather StatementFWDCollin, Denton60 min
Jul 4, 1:48 AM CDTSpecial Weather StatementFWDDallas72 min
Jul 4, 2:01 AM CDTSpecial Weather StatementFWDErath, Hood, Somervell59 min
Jul 4, 2:21 AM CDTSpecial Weather StatementFWDJohnson, Tarrant24 min
Jul 4, 2:34 AM CDTSpecial Weather StatementFWDFannin, Lamar41 min
Jul 4, 2:45 AM CDTSpecial Weather StatementFWDBosque, Ellis, Hill, Johnson45 min
Jul 4, 3:04 AM CDTSpecial Weather StatementFWDDelta, Hopkins, Hunt, Kaufman, Rains, Rockwall and 1 more56 min
Jul 4, 3:18 AM CDTSpecial Weather StatementFWDLamar27 min
Jul 4, 3:28 AM CDTSpecial Weather StatementFWDBosque, Ellis, Hill, McLennan, Navarro62 min
Jul 4, 4:37 AM CDTSpecial Weather StatementFWDCoryell, Lampasas, Limestone, McLennan, Navarro68 min
Jul 4, 12:11 PM CDTRiver Flood WarningFWDHunt, Rockwall23 hr

Nearby

Special Weather Statements in Texas, 2017Every special weather statement in 2017

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.