Alert archive / Louisiana / Special Weather Statements in 2021

Special Weather Statement, NWS Shreveport, LA

April 9, 2021Bienville Parish, Louisiana

NWS Shreveport, LA issued this special weather statement at Apr 9, 2021, 6:27 PM CDT for Bienville Parish, Louisiana. 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 outline as issued.

The facts

Issued: Apr 9, 2021, 6:27 PM CDT (23:27 UTC)
Expired: Apr 9, 2021, 7:15 PM CDT
In force: 48 min
Issued by: NWS Shreveport, LA

County Bienville Parish, LA

The radar

The Shreveport radar (KSHV), 58 km from the middle of the area, began a volume at 23:27 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 12:00Z, 11.5 hours before the alert went out and 49 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: 928 J/kg
Mixed-layer CIN: -310 J/kg
Mixed-layer LCL: 1043 m above ground
0-6 km bulk shear: 37 kt
0-1 km storm-relative helicity: 6 m²/s²
0-3 km storm-relative helicity: 61 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

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 Apr 9, 5:56 PM CDT, 31 minutes earlier.

Area forecast discussion, Apr 9, 5:56 PM CDT, 31 minutes before

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Hazardous weather outlook, Apr 9, 12:58 PM CDT, 5 hours 29 minutes before

Hazardous Weather Outlook
National Weather Service Shreveport LA
1258 PM CDT Fri Apr 9 2021

ARZ050-051-059>061-070>073-LAZ001>006-010>014-017>022-OKZ077-
TXZ096-097-108>112-124>126-136>138-149>153-165>167-101100-
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-
1258 PM CDT Fri Apr 9 2021

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

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

A Severe Thunderstorms Watch is in effect until 6 PM CDT for much
of Southwest Arkansas, portions of East Texas and Northeast
Texas, and much of Northwest and North Central Louisiana.

Scattered thunderstorms are rapidly developing across the
ArkLaTex. Some of these storms may be severe, with damaging winds,
large hail, and tornadoes possible. Additional thunderstorm
development is possible this evening over portions of East Texas
and North Louisiana, ahead of a severe squall line that will
develop over Eastern Oklahoma and quickly shift southeast across
the region from mid evening through the overnight hours. The
severe weather threat will become more pronounced with this squall
line, with damaging winds, large hail, isolated tornadoes, and
locally heavy rainfall possible. These storms will diminish from
northwest to southeast late tonight.

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

Scattered showers and isolated thunderstorms will be possible
across the region Tuesday through Thursday. However, no hazardous
weather is expected.

.SPOTTER INFORMATION STATEMENT...

Activation of emergency management personnel...amateur radio
operators...and storm spotters will be needed this afternoon
through tonight across the region.

09

In the hours before

Special weather statement, Apr 9, 5:42 PM CDT, 45 minutes before

Special Weather Statement
National Weather Service Shreveport LA
542 PM CDT Fri Apr 9 2021

TXZ149>153-092345-
Cherokee TX-Panola TX-Nacogdoches TX-Rusk TX-Shelby TX-
542 PM CDT Fri Apr 9 2021

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHWESTERN PANOLA...SOUTHERN
RUSK...NORTHWESTERN NACOGDOCHES...NORTHWESTERN SHELBY AND
SOUTHEASTERN CHEROKEE COUNTIES UNTIL 645 PM CDT...

At 541 PM CDT, Doppler radar was tracking a strong thunderstorm near
Morrill, or 13 miles south of Rusk, moving northeast at 50 mph.

Penny size hail and wind gusts up to 50 mph will be possible with
this storm.

Locations impacted include...
Alto, Timpson, Garrison, Morrill, Pinehill, Sacul, Douglass, Minden,
Trawick, Cushing, Mount Enterprise, Reklaw, Lawsonville, Glenfawn,
Linwood, Lilbert, Dotson, Looneyville and Laneville.

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.

&&

A Severe Thunderstorm Watch remains in effect until 1100 PM CDT for
eastern and northeastern Texas.

LAT...LON 3216 9466 3188 9437 3151 9510 3153 9511
      3154 9514 3156 9515 3156 9514 3159 9517
      3157 9521 3157 9523 3161 9526 3162 9526
      3163 9528
TIME...MOT...LOC 2241Z 235DEG 46KT 3160 9515

50

Local storm report, Apr 9, 5:55 PM CDT, 32 minutes before

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Local storm report, Apr 9, 6:12 PM CDT, 15 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SHREVEPORT LA
612 PM CDT FRI APR 9 2021

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0522 PM     HAIL             5 WSW DOWNSVILLE        32.61N 92.50W
04/09/2021  E0.88 INCH       LINCOLN            LA   BROADCAST MEDIA

            NICKLE-SIZED HAIL REPORTED OFF NEW HOPE ROAD
            IN DOUGLAS.

&&

09

Local storm report, Apr 9, 6:14 PM CDT, 13 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SHREVEPORT LA
614 PM CDT FRI APR 9 2021

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0420 PM     HAIL             5 E ALTO                31.67N 94.98W
04/09/2021  E0.75 INCH       CHEROKEE           TX   PUBLIC

            PUBLIC REPORTS HAIL VIA SOCIAL MEDIA IN THE
            LINWOOD COMMUNITY.

&&

20

Local storm report, Apr 9, 6:16 PM CDT, 11 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SHREVEPORT LA
616 PM CDT FRI APR 9 2021

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0432 PM     HAIL             7 SW CUSHING            31.74N 94.91W
04/09/2021  E1.00 INCH       NACOGDOCHES        TX   PUBLIC

            PUBLIC REPORTS HAIL VIA SOCIAL MEDIA IN THE
            LILBERT COMMUNITY.

&&

20

Special weather statement, Apr 9, 6:27 PM CDT, 0 minutes before

Special Weather Statement
National Weather Service Shreveport LA
627 PM CDT Fri Apr 9 2021

LAZ002>004-012-100015-
Bossier LA-Bienville LA-Claiborne LA-Webster LA-
627 PM CDT Fri Apr 9 2021

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN WEBSTER...
SOUTHWESTERN CLAIBORNE...NORTHWESTERN BIENVILLE AND SOUTHEASTERN
BOSSIER PARISHES UNTIL 715 PM CDT...

At 626 PM CDT, Doppler radar was tracking a strong thunderstorm near
Heflin, or 15 miles south of Minden, moving northeast at 30 mph.

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

Locations impacted include...
Minden, Arcadia, Ringgold, Sibley, Gibsland, Dubberly, Heflin,
Athens, Jamestown, Mount Lebanon, Curtis, Lake Bistineau South, Plum
Orchard Landing, Koran, Sailes, Noles Landing, Lake Bistineau North,
Ogden and Ada.

A Severe Thunderstorm Watch remains in effect until 1100 PM CDT for
northwestern Louisiana.

LAT...LON 3227 9334 3243 9350 3272 9307 3253 9288
TIME...MOT...LOC 2326Z 231DEG 27KT 3240 9335

19

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 9, 11:41 AM CDT	Special Weather Statement	SHV	Franklin, Red River, Titus	49 min
Apr 9, 12:04 PM CDT	Severe Thunderstorm Warning	SHV	Bowie, Cass, Morris, Red River, Titus	41 min
Apr 9, 12:29 PM CDT	Special Weather Statement	SHV	Upshur	46 min
Apr 9, 12:41 PM CDT	Severe Thunderstorm Warning	SHV	Bowie, Camp, Cass, Morris, Titus	31 min
Apr 9, 12:45 PM CDT	Severe Thunderstorm Warning	SHV	Bowie, Morris, Red River, Titus	33 min
Apr 9, 1:34 PM CDT	Severe Thunderstorm Warning	SHV	Smith, Wood	21 min
Apr 9, 3:22 PM CDT	Special Weather Statement	SHV	Morris	53 min
Apr 9, 4:31 PM CDT	Severe Thunderstorm Warning	SHV	Cherokee, Nacogdoches, Panola, Rusk, Shelby	59 min
Apr 9, 5:42 PM CDT	Special Weather Statement	SHV	Nacogdoches	63 min
Apr 9, 5:49 PM CDT	Severe Thunderstorm Warning	SHV	Panola, Shelby	56 min
Apr 9, 6:01 PM CDT	Severe Thunderstorm Warning	SHV	Panola, Rusk, Shelby	59 min
Apr 9, 6:33 PM CDT	Flash Flood Warning	SHV	Cherokee, Nacogdoches, Panola, Rusk, Smith	3 hr
Apr 9, 6:39 PM CDT	Special Weather Statement	SHV	Cherokee	51 min
Apr 9, 6:53 PM CDT	Severe Thunderstorm Warning	SHV	Panola, Rusk	45 min
Apr 9, 2:28 PM CDT	Severe Thunderstorm Warning	SHV	Bossier, Caddo, Claiborne, Webster	32 min
Apr 9, 2:51 PM CDT	Special Weather Statement	SHV	Caddo	39 min
Apr 9, 4:28 PM CDT	Severe Thunderstorm Warning	SHV	Bienville, Claiborne, Lincoln, Webster	47 min
Apr 9, 5:01 PM CDT	Severe Thunderstorm Warning	SHV	Union	44 min
Apr 9, 5:15 PM CDT	Severe Thunderstorm Warning	SHV	Claiborne, Lincoln, Ouachita, Union	45 min
Apr 9, 5:38 PM CDT	Severe Thunderstorm Warning	SHV	Bossier, Claiborne, Webster	67 min
Apr 9, 5:40 PM CDT	Special Weather Statement	SHV	De Soto	50 min
Apr 9, 5:44 PM CDT	Severe Thunderstorm Warning	SHV	Ouachita, Union	46 min
Apr 9, 5:54 PM CDT	Severe Thunderstorm Warning	SHV	Caldwell, Jackson, Ouachita, Winn	66 min
Apr 9, 5:58 PM CDT	Severe Thunderstorm Warning	SHV	Union	21 min
Apr 9, 6:23 PM CDT	Severe Thunderstorm Warning	SHV	Bienville, Jackson, Lincoln, Natchitoches, Red River, Winn	52 min
Apr 9, 6:37 PM CDT	Special Weather Statement	SHV	Ouachita	38 min
Apr 9, 6:40 PM CDT	Severe Thunderstorm Warning	SHV	Bienville, Claiborne, Lincoln, Union	65 min
Apr 9, 6:49 PM CDT	Severe Thunderstorm Warning	SHV	Bienville, Caddo, De Soto, Red River	56 min
Apr 9, 6:55 PM CDT	Severe Thunderstorm Warning	SHV	Ouachita, Union	65 min
Apr 9, 10:41 AM CDT	Special Weather Statement	SHV	Hempstead	49 min
Apr 9, 11:25 AM CDT	Special Weather Statement	SHV	Little River	50 min
Apr 9, 12:28 PM CDT	Severe Thunderstorm Warning	SHV	Hempstead, Nevada	45 min
Apr 9, 12:34 PM CDT	Special Weather Statement	SHV	Nevada	41 min
Apr 9, 1:49 PM CDT	Special Weather Statement	SHV	Lafayette, Miller	41 min
Apr 9, 2:03 PM CDT	Severe Thunderstorm Warning	SHV	Columbia, Hempstead, Lafayette, Miller, Nevada	30 min
Apr 9, 2:32 PM CDT	Severe Thunderstorm Warning	SHV	Columbia, Lafayette, Nevada, Union	43 min
Apr 9, 3:05 PM CDT	Severe Thunderstorm Warning	SHV	Columbia, Union	55 min
Apr 9, 3:57 PM CDT	Severe Thunderstorm Warning	SHV	Union	33 min
Apr 9, 4:30 PM CDT	Severe Thunderstorm Warning	SHV	Union	30 min

Nearby

Special Weather Statements in Louisiana, 2021 Every 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.