Alert archive / Texas / Severe Thunderstorm Warnings in 2022

Severe Thunderstorm Warning 147, NWS Shreveport, LA

May 21, 2022Gregg County, Rusk County, Texas

NWS Shreveport, LA issued this severe thunderstorm warning at May 21, 2022, 9:27 PM CDT for Gregg County, Rusk County, Texas. It was in force for 63 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
May 21, 2022, 9:27 PM CDT (02:27 UTC)
Expired
May 21, 2022, 10:30 PM CDT
In force
63 min
Issued by
NWS Shreveport, LA
Area
Storm-based polygon
Hail
1.25 in
Wind
60.0 mph

Counties Gregg County, TX, Rusk County, TX

The radar

The Shreveport radar (KSHV), 91 km from the middle of the area, began a volume at 02:29 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
May 21, 3:30 PM CDTSevere Thunderstorm WatchSPC10 hr

The nearest sounding before it

Lake Charles Mun, LA (KLCH), launched 00:00Z, 2.5 hours before the alert went out and 285 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, Lake Charles Mun, LA at 00:00Z on 2022-05-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3849 joules per kilogram.LCLEL10008507005003002001001 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, Lake Charles Mun, LA at 00:00Z on 2022-05-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -60 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
3849 J/kg
Mixed-layer CIN
-3 J/kg
Mixed-layer LCL
815 m above ground
0-6 km bulk shear
17 kt
0-1 km storm-relative helicity
-60 m²/s²
0-3 km storm-relative helicity
-13 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 Shreveport, LA wrote its last area forecast discussion before this severe thunderstorm warning went out at May 21, 6:16 PM CDT, 3 hours 11 minutes earlier.

Area forecast discussion, May 21, 6:16 PM CDT, 3 hours 11 minutes before
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Hazardous weather outlook, May 21, 6:12 AM CDT, 15 hours 15 minutes before
Hazardous Weather Outlook
National Weather Service Shreveport LA
612 AM CDT Sat May 21 2022

ARZ050-051-059>061-070>073-LAZ001>006-010>014-017>022-OKZ077-TXZ096-
097-108>112-124>126-136>138-149>153-165>167-221115-
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-
612 AM CDT Sat May 21 2022

This Hazardous Weather Outlook is for south central Arkansas,
southwest Arkansas, north central Louisiana, northwest Louisiana,
southeast Oklahoma, east Texas and northeast Texas.

.DAY ONE...Today and tonight.

Scattered to numerous thunderstorms are expected by late afternoon
into the evening and overnight hours as a strong cold front shifts
into the region. Some storms may be strong to severe with damaging
winds and hail possible, along with a non-zero tornado threat that
cannot be completely ruled out.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

Additional thunderstorms will be possible through the remainder of
the weekend into much of next week as the cold front will stall near
the coast and lift back northward Monday as a warm front. Meanwhile,
multiple upper level disturbances will transition across the region
through mid week and bring locally heavy rainfall with some storms.
These periods of heavy rainfall may present some possible flooding
concerns through the middle of next week with total event rainfall
amounts generally expected to range between 3-6 inches along with
isolated totals possible.

.SPOTTER INFORMATION STATEMENT...

Activation of emergency management personnel, amateur radio
operators, and storm spotters may be needed today and tonight.

19

In the hours before

Local storm report, May 21, 9:10 PM CDT, 17 minutes before
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Special weather statement, May 21, 9:18 PM CDT, 9 minutes before
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Local storm report, May 21, 9:24 PM CDT, 3 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
May 21, 9:18 PM CDTSpecial Weather StatementSHVGregg27 min
May 21, 9:43 PM CDTSevere Thunderstorm WarningSHVCherokee, Nacogdoches, Rusk, Smith62 min
May 21, 10:23 PM CDTSevere Thunderstorm WarningSHVBowie, Cass52 min
May 21, 10:38 PM CDTSevere Thunderstorm WarningSHVCherokee, Gregg, Harrison, Nacogdoches, Panola, Rusk and 4 more67 min
May 21, 10:55 PM CDTSevere Thunderstorm Warning Considerable damage threatSHVCass, Marion65 min
May 21, 11:15 PM CDTSpecial Weather StatementSHVAngelina, San Augustine60 min
May 21, 11:31 PM CDTSevere Thunderstorm WarningSHVHarrison, Marion44 min
May 21, 11:40 PM CDTSpecial Weather StatementSHVSabine, San Augustine, Shelby50 min
May 21, 11:59 PM CDTSevere Thunderstorm WarningSHVCass, Harrison, Marion61 min
May 22, 12:25 AM CDTSpecial Weather StatementSHVSabine, San Augustine65 min
May 22, 12:59 AM CDTSpecial Weather StatementSHVBossier, Claiborne, Webster61 min
May 22, 1:18 AM CDTSpecial Weather StatementSHVBienville, Natchitoches57 min
May 22, 3:20 AM CDTSpecial Weather StatementSHVCaldwell40 min
May 21, 7:58 PM CDTSevere Thunderstorm WarningSHVHoward, Sevier62 min
May 21, 8:58 PM CDTSevere Thunderstorm WarningSHVHempstead, Howard, Little River, Sevier62 min
May 21, 9:59 PM CDTSevere Thunderstorm WarningSHVHempstead, Howard, Little River, Nevada61 min

Nearby

Severe Thunderstorm Warnings in Texas, 2022Every severe thunderstorm warning in 2022

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.