Alert archive / Texas / Severe Thunderstorm Warnings in 2018

Severe Thunderstorm Warning 96, NWS Fort Worth, TX

April 13, 2018Milam County, Texas

NWS Fort Worth, TX issued this severe thunderstorm warning at Apr 13, 2018, 10:23 PM CDT for Milam County, Texas. It was in force for 33 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: Apr 13, 2018, 10:23 PM CDT (03:23 UTC)
Expired: Apr 13, 2018, 10:56 PM CDT
In force: 33 min
Issued by: NWS Fort Worth, TX
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

County Milam County, TX

The radar

The Ft Hood radar (KGRK), 39 km from the middle of the area, began a volume at 03:22 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, 3.4 hours before the alert went out and 229 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: 1159 J/kg
Mixed-layer CIN: -115 J/kg
Mixed-layer LCL: 1818 m above ground
0-6 km bulk shear: 45 kt
0-1 km storm-relative helicity: 141 m²/s²
0-3 km storm-relative helicity: 73 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 1.5

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 Apr 13, 7:11 PM CDT, 3 hours 12 minutes earlier.

Area forecast discussion, Apr 13, 7:11 PM CDT, 3 hours 12 minutes before

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Hazardous weather outlook, Apr 13, 10:03 PM CDT, 20 minutes before

Hazardous Weather Outlook
National Weather Service Fort Worth TX
1003 PM CDT Fri Apr 13 2018

TXZ091>095-100>107-115>123-129>135-141>148-156>162-174-175-141200-
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-
1003 PM CDT Fri Apr 13 2018

This Hazardous Weather Outlook is for North and Central Texas.

.DAY ONE...Tonight.

Thunderstorms continue along and east of a Sherman to Waxahachie to
Lampasas line this evening. This activity will move east out of the
region by 1 am. Hail and strong winds may occur with stronger storms.

Strong wind gusts up to 45 mph will occur behind a front as it moves
across the region tonight.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday.

There will be an elevated threat of grass fires west of I-35 on
Saturday.

.SPOTTER INFORMATION STATEMENT...

Limited spotter activation may be requested through 1 am along and
east of a Paris to Palestine line.

In the hours before

Local storm report, Apr 13, 9:23 PM CDT, 1 hour before

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Local storm report, Apr 13, 9:24 PM CDT, 59 minutes before

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Special weather statement, Apr 13, 9:26 PM CDT, 57 minutes before

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Local storm report, Apr 13, 9:31 PM CDT, 52 minutes before

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Special weather statement, Apr 13, 9:55 PM CDT, 28 minutes before

Special Weather Statement
National Weather Service Fort Worth TX
955 PM CDT FRI APR 13 2018

TXZ107-140330-
Hopkins TX-
955 PM CDT FRI APR 13 2018

...SIGNIFICANT WEATHER ADVISORY FOR EASTERN HOPKINS COUNTY UNTIL 1030
PM CDT...

At 954 PM CDT, Doppler radar was tracking a strong thunderstorm over
Como, or 9 miles southeast of Sulphur Springs, moving northeast at 40
mph.

Dime size hail and winds of up to 40 mph will be possible with this
storm.

Locations impacted include...
Como.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

This storm may intensify, so closely monitor for additional
information or possible warnings from the National Weather Service.

To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
office in Fort Worth.

&&

LAT...LON 3296 9549 3306 9561 3337 9536 3336 9533
      3337 9531 3296 9531
TIME...MOT...LOC 0254Z 225DEG 34KT 3306 9547

Bain

Special weather statement, Apr 13, 10:00 PM CDT, 23 minutes before

Special Weather Statement
National Weather Service Fort Worth TX
1000 PM CDT FRI APR 13 2018

TXZ158-140345-
Bell TX-
1000 PM CDT FRI APR 13 2018

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHERN BELL COUNTY UNTIL 1045
PM CDT...

At 959 PM CDT, Doppler radar was tracking a strong thunderstorm near
Jarrell, or 10 miles northwest of Granger, moving east at 35 mph.

Dime size hail will be possible with this storm.

Locations impacted include...
Temple, Belton, Salado, Little River-Academy, Bartlett, Rogers and
Holland.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Torrential rainfall is also occurring with this storm, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.

&&

LAT...LON 3087 9762 3089 9774 3115 9719 3099 9707
      3098 9708 3089 9726 3075 9732
TIME...MOT...LOC 0259Z 260DEG 32KT 3084 9754

Carlaw

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 13, 7:07 PM CDT	Severe Thunderstorm Warning	FWD	Hill, Limestone, McLennan	53 min
Apr 13, 7:21 PM CDT	Special Weather Statement	FWD	Coryell	39 min
Apr 13, 7:26 PM CDT	Special Weather Statement	FWD	Lampasas	34 min
Apr 13, 7:29 PM CDT	Severe Thunderstorm Warning	FWD	Coryell	21 min
Apr 13, 7:53 PM CDT	Severe Thunderstorm Warning	FWD	Hill, Limestone, McLennan, Navarro	67 min
Apr 13, 7:58 PM CDT	Special Weather Statement	FWD	Coryell	62 min
Apr 13, 7:59 PM CDT	Areal Flood Advisory	FWD	Fannin, Lamar	2 hr
Apr 13, 8:42 PM CDT	Severe Thunderstorm Warning	FWD	Freestone, Limestone, Navarro	63 min
Apr 13, 8:55 PM CDT	Severe Thunderstorm Warning	FWD	Henderson, Kaufman, Van Zandt	65 min
Apr 13, 8:58 PM CDT	Severe Thunderstorm Warning	FWD	Bell	62 min
Apr 13, 9:15 PM CDT	Severe Thunderstorm Warning	FWD	Anderson, Freestone, Henderson, Navarro	45 min
Apr 13, 9:26 PM CDT	Special Weather Statement	FWD	Falls, Leon, Milam, Robertson	79 min
Apr 13, 9:38 PM CDT	Severe Thunderstorm Warning	FWD	Henderson, Rains, Van Zandt	44 min
Apr 13, 9:52 PM CDT	Severe Thunderstorm Warning	FWD	Anderson	42 min
Apr 13, 9:55 PM CDT	Special Weather Statement	FWD	Hopkins	35 min
Apr 13, 10:00 PM CDT	Special Weather Statement	FWD	Bell	45 min
Apr 13, 11:02 PM CDT	Special Weather Statement	FWD	Lamar	28 min
Apr 14, 3:35 AM CDT	Freeze Watch	FWD	Cooke, Grayson, Jack, Montague, Young	17 hr
Apr 14, 3:35 AM CDT	Wind Advisory	FWD	Bell, Bosque, Comanche, Cooke, Coryell, Dallas and 20 more	15 hr

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.