Alert archive / Texas / Special Weather Statements in 2018

Special Weather Statement, NWS Fort Worth, TX

June 24, 2018Stephens County, Texas

NWS Fort Worth, TX issued this special weather statement at Jun 24, 2018, 1:07 AM CDT for Stephens County, Texas. It was in force for 23 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
Jun 24, 2018, 1:07 AM CDT (06:07 UTC)
Expired
Jun 24, 2018, 1:30 AM CDT
In force
23 min
Issued by
NWS Fort Worth, TX

County Stephens County, TX

The radar

The Dyess AFB radar (KDYX), 44 km from the middle of the area, began a volume at 06:07 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, 6.1 hours before the alert went out and 149 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 2018-06-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2014 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Fort Worth, TX at 00:00Z on 2018-06-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 5 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
2014 J/kg
Mixed-layer CIN
-129 J/kg
Mixed-layer LCL
2041 m above ground
0-6 km bulk shear
23 kt
0-1 km storm-relative helicity
5 m²/s²
0-3 km storm-relative helicity
117 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.7

Open this sounding in Storm Lab

The text

As transmitted.

488 
WWUS84 KFWD 240607
SPSFWD

Special Weather Statement
National Weather Service Fort Worth TX
107 AM CDT SUN JUN 24 2018
 
TXZ115-240630-
Stephens TX-
107 AM CDT SUN JUN 24 2018

...SIGNIFICANT WEATHER ADVISORY FOR STEPHENS COUNTY UNTIL 130 AM
CDT...

At 106 AM CDT, Doppler radar was tracking a strong winds across the 
county from a heat burst.

Wind gusts up to 50 mph will be possible.

Locations impacted include...
Breckenridge, Necessity, Gunsight and Crystal Falls. 

LAT...LON 3296 9909 3295 9858 3252 9858 3252 9910
TIME...MOT...LOC 0606Z 089DEG 19KT 3273 9890 

$$

JLD

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 23, 10:11 PM CDTSevere Thunderstorm WarningFWDJack, Young79 min
Jun 23, 10:34 PM CDTSpecial Weather StatementFWDEastland, Stephens41 min
Jun 23, 11:27 PM CDTSpecial Weather StatementFWDYoung63 min
Jun 23, 11:30 PM CDTSpecial Weather StatementFWDEastland60 min
Jun 24, 12:35 AM CDTSevere Thunderstorm WarningFWDHood, Parker40 min
Jun 24, 12:38 AM CDTSpecial Weather StatementFWDWise37 min
Jun 24, 12:49 AM CDTSevere Thunderstorm WarningFWDHood, Somervell41 min
Jun 24, 12:53 AM CDTSevere Thunderstorm WarningFWDJohnson, Parker, Tarrant52 min
Jun 24, 1:15 AM CDTSpecial Weather StatementFWDTarrant30 min
Jun 24, 1:23 AM CDTSevere Thunderstorm WarningFWDBosque, Hood, Johnson, Somervell52 min
Jun 24, 1:41 AM CDTSpecial Weather StatementFWDTarrant34 min
Jun 24, 2:02 AM CDTSpecial Weather StatementFWDCollin, Dallas, Denton, Eastland, Hood, Jack and 6 more73 min
Jun 24, 6:22 PM CDTSpecial Weather StatementFWDLamar38 min

Nearby

Special Weather Statements in Texas, 2018Every special weather statement in 2018

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.