Alert archive / Texas / Severe Thunderstorm Warnings in 2018

Severe Thunderstorm Warning 158, NWS Fort Worth, TX

June 24, 20184 counties in Texas

NWS Fort Worth, TX issued this severe thunderstorm warning at Jun 24, 2018, 1:23 AM CDT for 4 counties in Texas. It was in force for 52 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Jun 24, 2018, 1:23 AM CDT (06:23 UTC)
Expired: Jun 24, 2018, 2:15 AM CDT
In force: 52 min
Issued by: NWS Fort Worth, TX
Area: Storm-based polygon
Hail: 1.25 in
Wind: 60.0 mph

Counties Bosque County, TX, Hood County, TX, Johnson County, TX, Somervell County, TX

The radar

The Dallas/Ft Worth radar (KFWS), 50 km from the middle of the area, began a volume at 06:26 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, 6.4 hours before the alert went out and 75 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: 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

What forecasters said that day

The local office's own words before this severe thunderstorm warning 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 severe thunderstorm warning went out at Jun 24, 12:08 AM CDT, 1 hour 15 minutes earlier.

Area forecast discussion, Jun 24, 12:08 AM CDT, 1 hour 15 minutes before

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Hazardous weather outlook, Jun 23, 8:49 PM CDT, 4 hours 34 minutes before

Hazardous Weather Outlook...UPDATED
National Weather Service Fort Worth TX
849 PM CDT Sat Jun 23 2018

TXZ091>095-100>107-115>123-129>135-141>148-156>162-174-175-250200-
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-
849 PM CDT Sat Jun 23 2018

This Hazardous Weather Outlook is for North and Central Texas.

.DAY ONE...Tonight.
Thunderstorms will be possible tonight, mainly west of I-35 and north
of I-20. Some of the storms this evening may be severe across far
western portions of North Texas. Large hail and damaging winds will
be the primary hazards. The severe threat will diminish after
midnight with any storms that move deeper into the North Texas. These
storms will be slow-moving, efficient rain producers, and may result
in some minor flooding issues.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.
Very hot temperatures Sunday will combine with elevated humidity for
heat index values near 105 degrees.

.SPOTTER INFORMATION STATEMENT...
Spotter activation may be requested this evening across far western
portions of North Texas.

In the hours before

Special weather statement, Jun 23, 11:27 PM CDT, 1 hour 56 minutes before

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Special weather statement, Jun 23, 11:30 PM CDT, 1 hour 53 minutes before

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Local storm report, Jun 23, 11:42 PM CDT, 1 hour 41 minutes before

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Special weather statement, Jun 24, 12:38 AM CDT, 45 minutes before

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Special weather statement, Jun 24, 1:07 AM CDT, 16 minutes before

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Special weather statement, Jun 24, 1:15 AM CDT, 8 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
Jun 23, 10:11 PM CDT	Severe Thunderstorm Warning	FWD	Jack, Young	79 min
Jun 23, 10:34 PM CDT	Special Weather Statement	FWD	Eastland, Stephens	41 min
Jun 23, 11:27 PM CDT	Special Weather Statement	FWD	Young	63 min
Jun 23, 11:30 PM CDT	Special Weather Statement	FWD	Eastland	60 min
Jun 24, 12:35 AM CDT	Severe Thunderstorm Warning	FWD	Hood, Parker	40 min
Jun 24, 12:38 AM CDT	Special Weather Statement	FWD	Wise	37 min
Jun 24, 12:49 AM CDT	Severe Thunderstorm Warning	FWD	Hood, Somervell	41 min
Jun 24, 12:53 AM CDT	Severe Thunderstorm Warning	FWD	Johnson, Parker, Tarrant	52 min
Jun 24, 1:07 AM CDT	Special Weather Statement	FWD	Stephens	23 min
Jun 24, 1:15 AM CDT	Special Weather Statement	FWD	Tarrant	30 min
Jun 24, 1:41 AM CDT	Special Weather Statement	FWD	Tarrant	34 min
Jun 24, 2:02 AM CDT	Special Weather Statement	FWD	Collin, Dallas, Denton, Eastland, Hood, Jack and 6 more	73 min
Jun 24, 6:22 PM CDT	Special Weather Statement	FWD	Lamar	38 min

Nearby

Severe Thunderstorm Warnings in Texas, 2018 Every severe thunderstorm warning 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.