Alert archive / Texas / Special Weather Statements in 2021

Special Weather Statement, NWS Shreveport, LA

June 21, 2021Rusk County, Texas

NWS Shreveport, LA issued this special weather statement at Jun 21, 2021, 7:17 PM CDT for Rusk County, Texas. It was in force for 58 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
Jun 21, 2021, 7:17 PM CDT (00:17 UTC)
Expired
Jun 21, 2021, 8:15 PM CDT
In force
58 min
Issued by
NWS Shreveport, LA

County Rusk County, TX

The radar

The Shreveport radar (KSHV), 89 km from the middle of the area, began a volume at 00:19 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, 0.3 hours before the alert went out and 98 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 2021-06-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 671 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 2021-06-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 61 square meters per square second.193958Sfc1 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
671 J/kg
Mixed-layer CIN
-136 J/kg
Mixed-layer LCL
831 m above ground
0-6 km bulk shear
37 kt
0-1 km storm-relative helicity
61 m²/s²
0-3 km storm-relative helicity
163 m²/s²
Significant tornado parameter
0.1
Supercell composite
2.3

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 Jun 21, 6:22 PM CDT, 55 minutes earlier.

Area forecast discussion, Jun 21, 6:22 PM CDT, 55 minutes before
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Hazardous weather outlook, Jun 21, 11:05 AM CDT, 8 hours 12 minutes before
Hazardous Weather Outlook
National Weather Service Shreveport LA
1105 AM CDT Mon Jun 21 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>167-221615-
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-
1105 AM CDT Mon Jun 21 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...

Shower and thunderstorm chances will increase today ahead of an
approaching trough and cold front. A few of these storms may be
strong to severe, as a Marginal risk is in place for most of the
region. Damaging winds, small hail, and heavy rainfall will be the
main threats with any of this activity.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday...

Some of the aforementioned thunderstorms may linger into Tuesday
morning, with some of them potentially being strong to severe as
well. Beyond this, no hazardous weather is anticipated.

.SPOTTER INFORMATION STATEMENT...

Activation of emergency management personnel...amateur radio
operators...and storm spotters may be needed for tonight. Please
relay any information about observed severe weather to the NWS
while following all local, state, and CDC guidelines.

In the hours before

Special weather statement, Jun 21, 4:51 PM CDT, 2 hours 26 minutes before
Special Weather Statement
National Weather Service Shreveport LA
451 PM CDT Mon Jun 21 2021

LAZ003>005-012-013-212245-
Bienville LA-Lincoln LA-Claiborne LA-Jackson LA-Webster LA-
451 PM CDT Mon Jun 21 2021

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN WEBSTER...
NORTHWESTERN JACKSON...SOUTHWESTERN CLAIBORNE...BIENVILLE AND
SOUTHWESTERN LINCOLN PARISHES UNTIL 545 PM CDT...

At 451 PM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from near Minden to near Heflin. Movement was
southeast at 25 mph.

Pea size hail and winds in excess of 40 mph will be possible with
these storms.

Locations impacted include...
Minden, Arcadia, Ringgold, Sibley, Gibsland, Dubberly, Heflin,
Simsboro, Hodge, Saline, Lucky, Castor, Athens, Bienville, Quitman,
Jamestown, Bryceland, Mount Lebanon, Brice and Plum Orchard Landing.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Frequent cloud to ground lightning is occurring with these storms.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

These storms 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 3215 9287 3215 9305 3245 9342 3270 9315
      3243 9257
TIME...MOT...LOC 2151Z 305DEG 21KT 3263 9318 3249 9333

33
Special weather statement, Jun 21, 4:55 PM CDT, 2 hours 22 minutes before
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Special weather statement, Jun 21, 5:08 PM CDT, 2 hours 9 minutes before
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Special weather statement, Jun 21, 5:10 PM CDT, 2 hours 7 minutes before
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Special weather statement, Jun 21, 6:16 PM CDT, 1 hour 1 minute before
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Special weather statement, Jun 21, 6:18 PM CDT, 59 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Jun 21, 7:17 PM CDTSpecial Weather StatementSHVNacogdoches58 min

Nearby

Special Weather Statements in Texas, 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.