Alert archive / Texas / Severe Thunderstorm Warnings in 2019

Severe Thunderstorm Warning 1, NWS Shreveport, LA

January 19, 2019Bowie County, Red River County, Texas; Little River County, Arkansas

NWS Shreveport, LA issued this severe thunderstorm warning at Jan 19, 2019, 12:00 AM CST for Bowie County, Red River County, Texas; Little River County, Arkansas. It was in force for 45 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
Jan 19, 2019, 12:00 AM CST (06:00 UTC)
Expired
Jan 19, 2019, 12:45 AM CST
In force
45 min
Issued by
NWS Shreveport, LA
Area
Storm-based polygon
Hail
1.0 in
Wind
50.0 mph

Counties Little River County, AR, Bowie County, TX, Red River County, TX

The radar

The Shreveport radar (KSHV), 144 km from the middle of the area, began a volume at 06:03 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, 6.0 hours before the alert went out and 145 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 2019-01-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 307 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, Shreveport, LA at 00:00Z on 2019-01-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 395 square meters per square second.1939587897117Sfc1 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
307 J/kg
Mixed-layer CIN
-107 J/kg
Mixed-layer LCL
443 m above ground
0-6 km bulk shear
53 kt
0-1 km storm-relative helicity
395 m²/s²
0-3 km storm-relative helicity
531 m²/s²
Significant tornado parameter
0.0
Supercell composite
10.7

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 Shreveport, LA wrote its last area forecast discussion before this severe thunderstorm warning went out at Jan 18, 10:28 PM CST, 1 hour 32 minutes earlier.

Area forecast discussion, Jan 18, 10:28 PM CST, 1 hour 32 minutes before
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Hazardous weather outlook, Jan 18, 12:36 PM CST, 11 hours 24 minutes before
Hazardous Weather Outlook...CORRECTED
National Weather Service Shreveport LA
1236 PM CST Fri Jan 18 2019

ARZ050-051-059>061-070>073-LAZ001>006-010>014-017>022-OKZ077-
TXZ096-097-108>112-124>126-136>138-149>153-165>167-191845-
Sevier-Howard-Little River-Hempstead-Nevada-Miller-Lafayette-
Columbia-Union-Caddo-Bossier-Webster-Claiborne-Lincoln-De Soto-
Red River-Bienville-Jackson-Ouachita-Sabine-Natchitoches-Winn-
Grant-Caldwell-La Salle-McCurtain-Bowie-Franklin-Titus-Camp-
Morris-Cass-Wood-Upshur-Marion-Smith-Gregg-Harrison-Cherokee-Rusk-
Panola-Nacogdoches-Shelby-Angelina-San Augustine-
1236 PM CST Fri Jan 18 2019

This Hazardous Weather Outlook is for southern Arkansas, northern
Louisiana, eastern Texas and for southeast Oklahoma.

.DAY ONE...This Afternoon and Tonight...

Overall the clouds will be remaining tough this afternoon keeping
things fairly stable. However, showers will begin to crop up late
this afternoon in eastern Texas, becoming numerous this evening.
Steep temperature lapse rates associated with the approaching cold
core upper low will make large hail our primary initial threat
this evening and overnight as the front moves Southeastward.
However, damaging winds and possibly isolated tornadoes will
become possible as scattered thunderstorms organize into bows and
perhaps even a squall line in the predawn hours. This line will
quickly move across our Louisiana parishes just after daybreak.
Brief heavy rainfall will be possible with rainfall amounts
ranging from a half inch to inch for most of us with a few sites
near 2 inches along and South of I-20. The cold front will be
arriving before daybreak with rain showers changing to some snow
showers before ending North of I-30 during the morning hours.
Wintry impacts are not expected for us with the much warmer ground
temperatures, but travelers farther North should plan for such.
Also, everybody secure objects today for Windy conditions coming.

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

Gusty high pressure gradient winds will move in with this Arctic
cold front early on Saturday. Expect northwest winds of 20 to 30
mph with higher gusts to near 40 mph, not to mention the quickly
falling temperatures immediately behind the front moving across
I-30 before sunrise. These gusty winds will spread Southeastward
from daybreak to Noon across the rest of our cwa. High temps will
occur before lunch almost everywhere and thirties will cover our
entire area before sunset with clouds clearing out. Then we can
expect freezing temperatures Saturday evening and all night long
with still very cold wind chill readings. A range of low to mid
twenties will greet the day on Sunday as the winds begin to
relax. The cold air mass moves East early in the new week with a
warmer trend and quickly wetter trend with showers and
thunderstorms on Tuesday and night ahead of our next Arctic blast
early on Wednesday. Rinse and repeat forecast with freezing
temperatures by Thursday morning.

.SPOTTER INFORMATION STATEMENT...

Activation of emergency management personnel...amateur radio
operators and storm spotters may be needed this evening and
overnight ahead of this Arctic blast coming in the morning.

24

In the hours before

Special weather statement, Jan 18, 11:41 PM CST, 19 minutes before
Special Weather Statement
National Weather Service Shreveport LA
1141 PM CST Fri Jan 18 2019

TXZ096-097-108-109-190630-
Bowie TX-Red River TX-Franklin TX-Titus TX-
1141 PM CST Fri Jan 18 2019

...SIGNIFICANT WEATHER ADVISORY FOR NORTHERN FRANKLIN...NORTHWESTERN
BOWIE...NORTHWESTERN TITUS AND RED RIVER COUNTIES UNTIL 1230 AM
CST...

At 1140 PM CST, Doppler radar was tracking a strong thunderstorm over
Hagansport, moving northeast at 50 mph.

Half inch hail and winds in excess of 30 mph will be possible with
this storm.

Locations impacted include...
Clarksville, Hagansport, Boxelder, Bogata, Bagwell, Talco, Avery,
Annona, Almont, Beaverdams, Harts Bluff, Negley, Cuthand, English,
Johntown and Bryarly.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

This storm may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.

Persons in campgrounds should consider seeking sturdy shelter until
this storm passes.

&&

LAT...LON 3359 9531 3385 9506 3376 9488 3375 9487
      3374 9484 3359 9454 3321 9528 3324 9531
TIME...MOT...LOC 0540Z 233DEG 61KT 3338 9522

07

The office that day

Everything else NWS Shreveport, LA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jan 18, 11:41 PM CSTSpecial Weather StatementSHVRed River49 min
Jan 19, 12:28 AM CSTSpecial Weather StatementSHVBowie, Camp, Morris62 min
Jan 19, 12:45 AM CSTSevere Thunderstorm WarningSHVBowie45 min
Jan 19, 2:24 AM CSTSpecial Weather StatementSHVSabine, San Augustine66 min
Jan 19, 12:53 AM CSTSevere Thunderstorm WarningSHVGrant, Natchitoches, Winn52 min
Jan 19, 12:59 AM CSTTornado WarningSHVCaldwell, LaSalle, Winn31 min
Jan 19, 1:00 AM CSTTornado WarningSHVGrant, Natchitoches, Winn30 min
Jan 19, 1:26 AM CSTTornado WarningSHVCaldwell, Grant, LaSalle, Winn49 min
Jan 19, 2:05 AM CSTSpecial Weather StatementSHVBossier, Caddo55 min
Jan 19, 3:14 AM CSTSpecial Weather StatementSHVBienville, Lincoln, Natchitoches, Red River, Sabine46 min
Jan 19, 3:17 AM CSTSpecial Weather StatementSHVLaSalle43 min
Jan 19, 3:39 AM CSTSevere Thunderstorm WarningSHVLaSalle36 min
Jan 19, 3:46 AM CSTSpecial Weather StatementSHVGrant, Jackson, Natchitoches, Ouachita, Union, Winn44 min
Jan 19, 4:30 AM CSTSpecial Weather StatementSHVCaldwell, Grant, LaSalle, Ouachita45 min

Nearby

Severe Thunderstorm Warnings in Texas, 2019Severe Thunderstorm Warnings in Arkansas, 2019Every severe thunderstorm warning in 2019

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.