Alert archive / Texas / Severe Thunderstorm Warnings in 2018

Severe Thunderstorm Warning 199, NWS Fort Worth, TX

November 12, 2018Freestone County, Leon County, Limestone County, Texas

NWS Fort Worth, TX issued this severe thunderstorm warning at Nov 12, 2018, 1:12 AM CST for Freestone County, Leon County, Limestone County, Texas. It was in force for 48 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
Nov 12, 2018, 1:12 AM CST (07:12 UTC)
Expired
Nov 12, 2018, 2:00 AM CST
In force
48 min
Issued by
NWS Fort Worth, TX
Area
Storm-based polygon
Hail
1.0 in
Wind
50.0 mph

Counties Freestone County, TX, Leon County, TX, Limestone County, TX

The radar

The Ft Hood radar (KGRK), 140 km from the middle of the area, began a volume at 07:14 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 (KBAD), launched 00:00Z, 7.2 hours before the alert went out and 258 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, Shreveport, LA at 00:00Z on 2018-11-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Shreveport, LA at 00:00Z on 2018-11-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 58 square meters per square second.1939587897Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1049 m above ground
0-6 km bulk shear
70 kt
0-1 km storm-relative helicity
58 m²/s²
0-3 km storm-relative helicity
162 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

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 Nov 11, 11:51 PM CST, 1 hour 21 minutes earlier.

Area forecast discussion, Nov 11, 11:51 PM CST, 1 hour 21 minutes before
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Hazardous weather outlook, Nov 11, 9:15 PM CST, 3 hours 57 minutes before
Hazardous Weather Outlook
National Weather Service Fort Worth TX
915 PM CST Sun Nov 11 2018

TXZ091>095-100>107-115>123-129>135-141>148-156>162-174-175-130315-
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-
915 PM CST Sun Nov 11 2018

This Hazardous Weather Outlook is for North and Central Texas.

.DAY ONE...Tonight.
Isolated thunderstorms will be possible tonight, mainly across
Central and East Texas. Lightning and small hail will be the primary
hazards.

.DAYS TWO THROUGH SEVEN...Monday through Saturday.
Isolated thunderstorms may occur Monday morning. Lightning will
continue to be the primary hazard with any storms.

In areas north and west of the Dallas/Fort Worth Metroplex, snow may
mix with the rain Monday afternoon before the precipitation comes to
an end. Light snow accumulation on grassy surfaces will be possible,
but significant impacts to travel are not anticipated.

A widespread freeze is expected Monday night. As many locations have
yet to see freezing temperatures this season, a Freeze Warning is in
effect for all of North and Central Texas.

Another freeze with even colder conditions will occur Tuesday night,
with all locations dropping into the 20s for an extended period of
time. A third consecutive freeze will follow Wednesday night. These
freezes will bring an end to the growing season.

.SPOTTER INFORMATION STATEMENT...
Spotter activation is not expected at this time.

Bain

In the hours before

Special weather statement, Nov 11, 10:38 PM CST, 2 hours 34 minutes before
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Special weather statement, Nov 11, 10:50 PM CST, 2 hours 22 minutes before
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Special weather statement, Nov 11, 11:08 PM CST, 2 hours 4 minutes before
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Special weather statement, Nov 12, 12:29 AM CST, 43 minutes before
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Special weather statement, Nov 12, 12:40 AM CST, 32 minutes before
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Special weather statement, Nov 12, 1:08 AM CST, 4 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Nov 11, 7:51 PM CSTRiver Flood WarningFWDHunt, Rockwall36 hr
Nov 11, 8:11 PM CSTRiver Flood WarningFWDDallas42 hr
Nov 11, 9:15 PM CSTSpecial Weather StatementFWDBell45 min
Nov 11, 9:44 PM CSTSevere Thunderstorm WarningFWDMcLennan38 min
Nov 11, 10:15 PM CSTSpecial Weather StatementFWDBell30 min
Nov 11, 10:24 PM CSTSpecial Weather StatementFWDNavarro36 min
Nov 11, 10:38 PM CSTSpecial Weather StatementFWDMcLennan37 min
Nov 11, 10:50 PM CSTSpecial Weather StatementFWDLimestone25 min
Nov 11, 11:08 PM CSTSpecial Weather StatementFWDLampasas37 min
Nov 12, 12:29 AM CSTSpecial Weather StatementFWDMcLennan31 min
Nov 12, 12:40 AM CSTSpecial Weather StatementFWDRobertson35 min
Nov 12, 1:08 AM CSTSpecial Weather StatementFWDFreestone37 min
Nov 12, 1:29 AM CSTAreal Flood AdvisoryFWDFreestone, Limestone, McLennan, Navarro4 hr
Nov 12, 1:44 AM CSTSevere Thunderstorm WarningFWDFreestone, Limestone28 min
Nov 12, 1:45 AM CSTSpecial Weather StatementFWDAnderson30 min
Nov 12, 8:34 AM CSTRiver Flood WarningFWDHunt25 hr
Nov 12, 9:22 AM CSTRiver Flood WarningFWDParker11 hr
Nov 12, 9:22 AM CSTRiver Flood WarningFWDLimestone49 hr
Nov 12, 2:36 PM CSTRiver Flood WarningFWDLeon, Robertson5 days

Nearby

Severe Thunderstorm Warnings in Texas, 2018Every 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.