Alert archive / Arkansas / Special Weather Statements in 2021

Special Weather Statement, NWS Shreveport, LA

May 11, 2021Little River County, Arkansas

NWS Shreveport, LA issued this special weather statement at May 11, 2021, 3:37 AM CDT for Little River County, Arkansas. It was in force for 53 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
May 11, 2021, 3:37 AM CDT (08:37 UTC)
Expired
May 11, 2021, 4:30 AM CDT
In force
53 min
Issued by
NWS Shreveport, LA

County Little River County, AR

The radar

The Shreveport radar (KSHV), 151 km from the middle of the area, began a volume at 08:38 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 (KSHV), launched 00:00Z, 8.6 hours before the alert went out and 150 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 2021-05-11Temperature 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 2021-05-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 96 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
474 m above ground
0-6 km bulk shear
41 kt
0-1 km storm-relative helicity
96 m²/s²
0-3 km storm-relative helicity
173 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

The text

As transmitted.

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What forecasters said that day

The local office's own words before this special weather statement 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 special weather statement went out at May 11, 3:05 AM CDT, 32 minutes earlier.

Area forecast discussion, May 11, 3:05 AM CDT, 32 minutes before
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      <div class="status" id="status">Temporary Notice</div>
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Hazardous weather outlook, May 11, 3:14 AM CDT, 23 minutes before
Hazardous Weather Outlook
National Weather Service Shreveport LA
314 AM CDT Tue May 11 2021

ARZ050-051-059>061-OKZ077-120815-
Sevier-Howard-Little River-Hempstead-Nevada-McCurtain-
314 AM CDT Tue May 11 2021

This Hazardous Weather Outlook is for portions of southwest
Arkansas and southeast Oklahoma.

.DAY ONE...Today and Tonight...

Periods of moderate to heavy rainfall will once again be possible
today and tonight, which may result is some localized flash
flooding. A few of these storms may be strong to severe as well.
Damaging winds and hail would be the primary threats with this
activity.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday...

Dry conditions settle in by Wednesday afternoon, and will remain
into the weekend. Shower and thunderstorm chances return by Sunday
night, with moderate rain possible again into Monday.

.SPOTTER INFORMATION STATEMENT...

Activation of emergency management personnel...amateur radio
operators...and storm spotters will be needed this afternoon and
evening.

ARZ070>073-LAZ001>006-010>014-017>022-TXZ096-097-108>112-124>126-
136>138-149>153-165>167-120815-
Miller-Lafayette-Columbia-Union-Caddo-Bossier-Webster-Claiborne-
Lincoln-De Soto-Red River-Bienville-Jackson-Ouachita-Sabine-
Natchitoches-Winn-Grant-Caldwell-La Salle-Bowie-Franklin-Titus-
Camp-Morris-Cass-Wood-Upshur-Marion-Smith-Gregg-Harrison-Cherokee-
Rusk-Panola-Nacogdoches-Shelby-Angelina-San Augustine-
314 AM CDT Tue May 11 2021

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

.DAY ONE...Today and Tonight...

Periods of moderate to heavy rainfall will once again be possible
today and tonight, which may result is some localized flash
flooding. A flash flood watch has been issued for these areas, as
soils are already rather saturated from previous rainfall. A few
of these storms may be strong to severe as well. Damaging winds
and hail would be the primary threats with this activity.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday...

Dry conditions settle in by Wednesday afternoon, and will remain
into the weekend. Shower and thunderstorm chances return by Sunday
night, with moderate rain passable again into Monday.

.SPOTTER INFORMATION STATEMENT...

Activation of emergency management personnel...amateur radio
operators...and storm spotters will be needed this afternoon and
evening.

44

In the hours before

Special weather statement, May 11, 12:57 AM CDT, 2 hours 40 minutes before
Special Weather Statement
National Weather Service Shreveport LA
1257 AM CDT Tue May 11 2021

TXZ124-125-136-137-150-110645-
Upshur TX-Gregg TX-Smith TX-Wood TX-Rusk TX-
1257 AM CDT Tue May 11 2021

...SIGNIFICANT WEATHER ADVISORY FOR CENTRAL SMITH...NORTHWESTERN
RUSK...SOUTHEASTERN WOOD...SOUTHWESTERN UPSHUR AND SOUTHWESTERN GREGG
COUNTIES UNTIL 145 AM CDT...

At 1257 AM CDT, Doppler radar was tracking a strong thunderstorm near
Lindale, or 11 miles southeast of Mineola, moving east at 30 mph.

Nickel size hail and winds in excess of 40 mph will be possible with
this storm.

Locations impacted include...
Kilgore, Gladewater, Gilmer, Lindale, Big Sandy, Hawkins, Clarksville
City, Liberty City, West Mountain, Hoard, Winona, Union Grove, Warren
City, Red Springs, Laird Hill and Pritchett.

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.

&&

LAT...LON 3244 9545 3262 9545 3272 9490 3230 9489
TIME...MOT...LOC 0557Z 271DEG 27KT 3254 9536

33
Special weather statement, May 11, 1:12 AM CDT, 2 hours 25 minutes before
Special Weather Statement
National Weather Service Shreveport LA
112 AM CDT Tue May 11 2021

TXZ124-136-110700-
Smith TX-Wood TX-
112 AM CDT Tue May 11 2021

...SIGNIFICANT WEATHER ADVISORY FOR NORTHWESTERN SMITH AND WOOD
COUNTIES UNTIL 200 AM CDT...

At 112 AM CDT, Doppler radar was tracking a strong thunderstorm near
Grand Saline, or 9 miles west of Mineola, moving east at 40 mph.

Nickel size hail and winds in excess of 40 mph will be possible with
this storm.

Locations impacted include...
Mineola, Quitman, Hawkins, Hoard, Hainesville, Golden, Forest Hill
and Alba.

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.

&&

LAT...LON 3282 9564 3290 9520 3262 9515 3260 9516
      3258 9559 3269 9559 3271 9561 3272 9564
TIME...MOT...LOC 0612Z 264DEG 34KT 3270 9564

33
Special weather statement, May 11, 1:55 AM CDT, 1 hour 42 minutes before
Special Weather Statement
National Weather Service Shreveport LA
155 AM CDT Tue May 11 2021

LAZ020-022-110745-
La Salle LA-Grant LA-
155 AM CDT Tue May 11 2021

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN GRANT AND CENTRAL LA
SALLE PARISHES UNTIL 245 AM CDT...

At 155 AM CDT, Doppler radar was tracking a strong thunderstorm 9
miles southwest of Midway, or 19 miles northeast of Pineville, moving
east at 30 mph.

Nickel size hail and winds in excess of 40 mph will be possible with
this storm.

Locations impacted include...
Jena, Midway, Nebo, Rogers and Catahoula Lake.

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.

&&

LAT...LON 3147 9218 3148 9218 3147 9219 3148 9220
      3145 9234 3163 9238 3177 9201 3149 9201
TIME...MOT...LOC 0655Z 256DEG 24KT 3156 9222

33
Special weather statement, May 11, 2:38 AM CDT, 59 minutes before
Special Weather Statement
National Weather Service Shreveport LA
238 AM CDT Tue May 11 2021

TXZ125-137-138-150-110830-
Upshur TX-Gregg TX-Harrison TX-Rusk TX-
238 AM CDT Tue May 11 2021

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHWESTERN HARRISON...
NORTHEASTERN RUSK...SOUTHEASTERN UPSHUR AND GREGG COUNTIES UNTIL 330
AM CDT...

At 237 AM CDT, Doppler radar was tracking a strong thunderstorm over
White Oak, moving east at 40 mph.

Half inch hail and winds in excess of 40 mph will be possible with
this storm.

Locations impacted include...
Longview, Marshall, Kilgore, White Oak, Gladewater, Hallsville,
Clarksville City, East Mountain, Liberty City, West Mountain,
Lakeport, Easton, Union Grove, Warren City, Nesbitt, Rolling Meadows,
Darco and Judson.

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 3264 9495 3267 9440 3237 9440 3237 9441
      3236 9444 3237 9445 3237 9446 3239 9449
      3236 9449 3235 9450 3237 9495
TIME...MOT...LOC 0737Z 272DEG 36KT 3251 9485

44
Special weather statement, May 11, 3:20 AM CDT, 17 minutes before
Special Weather Statement
National Weather Service Shreveport LA
320 AM CDT Tue May 11 2021

TXZ138-110900-
Harrison TX-
320 AM CDT Tue May 11 2021

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHERN HARRISON COUNTY UNTIL
400 AM CDT...

At 320 AM CDT, Doppler radar was tracking a strong thunderstorm near
Hallsville, or 7 miles west of Marshall, moving east at 35 mph.

Half inch hail and winds in excess of 40 mph will be possible with
this storm.

Locations impacted include...
Marshall, Waskom, Elysian Fields, Scottsville, Jonesville, Nesbitt,
Darco and Leigh.

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 3259 9456 3265 9408 3238 9408 3236 9419
      3240 9456
TIME...MOT...LOC 0820Z 269DEG 32KT 3250 9447

44
Special weather statement, May 11, 3:37 AM CDT, 0 minutes before
Special Weather Statement
National Weather Service Shreveport LA
337 AM CDT Tue May 11 2021

ARZ050-051-059-060-110930-
Howard AR-Hempstead AR-Sevier AR-Little River AR-
337 AM CDT Tue May 11 2021

...SIGNIFICANT WEATHER ADVISORY FOR CENTRAL LITTLE RIVER...WESTERN
HEMPSTEAD...SOUTHERN SEVIER AND SOUTHEASTERN HOWARD COUNTIES UNTIL
430 AM CDT...

At 337 AM CDT, Doppler radar was tracking a strong thunderstorm near
Winthrop, or 7 miles northeast of Foreman, moving east at 40 mph.

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

Locations impacted include...
Ashdown, Mineral Springs, Foreman, Wilton, Tollette, Winthrop, Ben
Lomond, Saratoga, Oak Grove, Bright Star and Browntown.

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 3370 9440 3388 9440 3393 9389 3367 9389
TIME...MOT...LOC 0837Z 269DEG 33KT 3379 9431

44

The office that day

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

IssuedProductOfficeCountiesLasted
May 10, 7:47 PM CDTRiver Flood WarningSHVGregg64 hr
May 10, 8:41 PM CDTSpecial Weather StatementSHVCamp, Morris, Upshur, Wood64 min
May 10, 9:27 PM CDTSpecial Weather StatementSHVHarrison, Marion48 min
May 10, 9:29 PM CDTSevere Thunderstorm WarningSHVRed River46 min
May 11, 12:57 AM CDTSpecial Weather StatementSHVSmith48 min
May 11, 1:12 AM CDTSpecial Weather StatementSHVWood48 min
May 11, 2:04 AM CDTFlash Flood WatchSHVAngelina, Bowie, Camp, Cass, Cherokee, Franklin and 15 more24 hr
May 11, 2:38 AM CDTSpecial Weather StatementSHVGregg52 min
May 11, 3:20 AM CDTSpecial Weather StatementSHVHarrison40 min
May 11, 3:28 AM CDTAreal Flood AdvisorySHVHarrison4 hr
May 11, 8:04 AM CDTRiver Flood WarningSHVAnderson, Cherokee, Houston36 days
May 11, 9:22 AM CDTRiver Flood WarningSHVGregg, Smith, Upshur, Wood39 days
May 11, 9:25 AM CDTRiver Flood WarningSHVFranklin, Morris, Red River, Titus3 days
May 11, 9:25 AM CDTRiver Flood WarningSHVFranklin, Morris, Titus5 days
May 11, 11:15 AM CDTSpecial Weather StatementSHVCherokee45 min
May 11, 11:59 AM CDTSpecial Weather StatementSHVCherokee31 min
May 11, 12:31 PM CDTSpecial Weather StatementSHVCherokee44 min
May 11, 1:32 PM CDTSpecial Weather StatementSHVSmith43 min
May 11, 1:34 PM CDTSpecial Weather StatementSHVGregg41 min
May 11, 2:12 PM CDTSpecial Weather StatementSHVCass, Marion48 min
May 11, 2:15 PM CDTSpecial Weather StatementSHVHarrison45 min
May 11, 2:21 PM CDTSevere Thunderstorm WarningSHVGregg, Harrison, Rusk, Smith, Upshur37 min
May 11, 2:50 PM CDTSpecial Weather StatementSHVCherokee, Smith40 min
May 11, 2:56 PM CDTSevere Thunderstorm WarningSHVGregg, Harrison, Panola, Rusk17 min
May 11, 3:01 PM CDTSevere Thunderstorm WarningSHVCherokee, Gregg, Rusk, Smith48 min
May 11, 3:59 PM CDTSevere Thunderstorm WarningSHVCherokee, Gregg, Harrison, Nacogdoches, Panola, Rusk and 1 more61 min
May 11, 4:18 PM CDTSevere Thunderstorm WarningSHVAngelina, Cherokee42 min
May 11, 5:01 PM CDTSpecial Weather StatementSHVAngelina59 min
May 11, 6:00 PM CDTSpecial Weather StatementSHVAngelina45 min
May 11, 6:14 PM CDTSevere Thunderstorm WarningSHVAngelina28 min
May 10, 8:13 PM CDTSpecial Weather StatementSHVGrant, Natchitoches47 min
May 10, 11:24 PM CDTAreal Flood AdvisorySHVBossier, Caddo3 hr
May 11, 1:55 AM CDTSpecial Weather StatementSHVLaSalle50 min
May 11, 4:38 AM CDTSpecial Weather StatementSHVLaSalle37 min
May 11, 7:29 AM CDTSpecial Weather StatementSHVLaSalle46 min
May 11, 7:39 AM CDTSpecial Weather StatementSHVDe Soto, Sabine51 min
May 11, 9:25 AM CDTSpecial Weather StatementSHVClaiborne35 min
May 11, 3:26 PM CDTSpecial Weather StatementSHVCaddo64 min
May 10, 9:56 PM CDTSevere Thunderstorm WarningSHVSevier49 min
May 10, 10:11 PM CDTSpecial Weather StatementSHVHoward34 min
May 11, 12:04 PM CDTSpecial Weather StatementSHVHoward26 min
May 10, 8:59 PM CDTSpecial Weather StatementSHVMcCurtain46 min
May 10, 9:12 PM CDTSevere Thunderstorm WarningSHVMcCurtain38 min
May 11, 1:28 PM CDTSpecial Weather StatementSHVMcCurtain47 min

Nearby

Special Weather Statements in Arkansas, 2021Every special weather statement in 2021

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.