Alert archive / Louisiana / Special Weather Statements in 2021

Special Weather Statement, NWS Shreveport, LA

June 8, 2021Natchitoches Parish, Louisiana

NWS Shreveport, LA issued this special weather statement at Jun 8, 2021, 1:26 PM CDT for Natchitoches Parish, Louisiana. It was in force for 49 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 8, 2021, 1:26 PM CDT (18:26 UTC)
Expired
Jun 8, 2021, 2:15 PM CDT
In force
49 min
Issued by
NWS Shreveport, LA

County Natchitoches Parish, LA

The radar

The Ft Polk radar (KPOE), 41 km from the middle of the area, began a volume at 18:25 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, 6.4 hours before the alert went out and 123 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 12:00Z on 2021-06-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1621 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 12:00Z on 2021-06-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 106 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
1621 J/kg
Mixed-layer CIN
-10 J/kg
Mixed-layer LCL
580 m above ground
0-6 km bulk shear
21 kt
0-1 km storm-relative helicity
106 m²/s²
0-3 km storm-relative helicity
218 m²/s²
Significant tornado parameter
0.0
Supercell composite
3.1

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 Jun 8, 12:38 PM CDT, 48 minutes earlier.

Area forecast discussion, Jun 8, 12:38 PM CDT, 48 minutes before
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Hazardous weather outlook, Jun 8, 4:03 AM CDT, 9 hours 23 minutes before
Hazardous Weather Outlook
National Weather Service Shreveport LA
403 AM CDT Tue Jun 8 2021

ARZ050-051-059>061-070>073-OKZ077-TXZ096-097-108>112-090915-
Sevier-Howard-Little River-Hempstead-Nevada-Miller-Lafayette-
Columbia-Union-McCurtain-Red River-Bowie-Franklin-Titus-Camp-
Morris-Cass-
403 AM CDT Tue Jun 8 2021

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

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

Widespread shower and thunderstorms will continue today. Locally
heavy rainfall will be possible with these storms, leading to
additional flooding across the region. A Flash Flood Watch
remains in effect through 7 PM this evening. In addition to the
heavy rain, strong gusty winds will be possible, especially if
storms are able to organized into clusters.

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

Much drier conditions are expected for the remainder of the week
as upper ridging builds into the region from the west. The ridge
will start retrograde by the weekend, and widespread rain chances
will return.

.SPOTTER INFORMATION STATEMENT...

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

LAZ001>006-010>014-017>022-TXZ124>126-136>138-149>153-165>167-
090915-
Caddo-Bossier-Webster-Claiborne-Lincoln-Union-De Soto-Red River-
Bienville-Jackson-Ouachita-Sabine-Natchitoches-Winn-Grant-
Caldwell-La Salle-Wood-Upshur-Marion-Smith-Gregg-Harrison-
Cherokee-Rusk-Panola-Nacogdoches-Shelby-Angelina-San Augustine-
403 AM CDT Tue Jun 8 2021

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

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

Widespread rain chances will continue today, which may lead to
additional localized flash flooding concerns. Can't rule out
strong gusty winds, especially if storms are able to organized
into clusters.

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

Much drier conditions are expected for the remainder of the week
as upper ridging builds into the region from the west. The ridge
will start retrograde by the weekend, and widespread rain chances
will return.

.SPOTTER INFORMATION STATEMENT...

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

In the hours before

Local storm report, Jun 8, 12:37 PM CDT, 49 minutes before
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Special weather statement, Jun 8, 12:43 PM CDT, 43 minutes before
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Special weather statement, Jun 8, 12:56 PM CDT, 30 minutes before
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Local storm report, Jun 8, 1:02 PM CDT, 24 minutes before
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Special weather statement, Jun 8, 1:23 PM CDT, 3 minutes before
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Special weather statement, Jun 8, 1:26 PM CDT, 0 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Jun 8, 3:29 AM CDTAreal Flood AdvisorySHVRed River2 hr
Jun 8, 5:13 AM CDTRiver Flood WarningSHVBowie, Red River52 hr
Jun 8, 5:33 AM CDTAreal Flood AdvisorySHVRed River3 hr
Jun 8, 5:37 AM CDTRiver Flood WarningSHVSabine, San Augustine14 hr
Jun 8, 9:31 AM CDTTornado Warning Tornado observedSHVSmith26 min
Jun 8, 9:52 AM CDTTornado WarningSHVCherokee23 min
Jun 8, 9:59 AM CDTSpecial Weather StatementSHVSmith, Upshur, Wood46 min
Jun 8, 10:12 AM CDTTornado WarningSHVCherokee, Rusk33 min
Jun 8, 10:30 AM CDTSevere Thunderstorm WarningSHVCherokee, Nacogdoches, Panola, Rusk45 min
Jun 8, 10:43 AM CDTTornado WarningSHVRusk32 min
Jun 8, 10:51 AM CDTSevere Thunderstorm WarningSHVGregg, Harrison, Panola, Rusk54 min
Jun 8, 11:15 AM CDTSevere Thunderstorm WarningSHVCherokee, Nacogdoches, Panola, Rusk, San Augustine, Shelby45 min
Jun 8, 11:43 AM CDTSevere Thunderstorm WarningSHVHarrison, Panola, Shelby50 min
Jun 8, 12:05 PM CDTSpecial Weather StatementSHVSabine, Shelby40 min
Jun 7, 7:43 PM CDTSpecial Weather StatementSHVLaSalle62 min
Jun 8, 12:17 PM CDTSevere Thunderstorm WarningSHVBienville, Bossier, Caddo, De Soto, Red River, Webster43 min
Jun 8, 12:43 PM CDTSpecial Weather StatementSHVSabine47 min
Jun 8, 12:56 PM CDTSpecial Weather StatementSHVBienville, Red River34 min
Jun 8, 1:23 PM CDTSpecial Weather StatementSHVBienville52 min
Jun 8, 1:29 PM CDTSevere Thunderstorm WarningSHVBienville, Jackson, Natchitoches, Winn46 min
Jun 8, 2:05 PM CDTSevere Thunderstorm WarningSHVCaldwell, Jackson, Lincoln, Ouachita, Union, Winn55 min
Jun 8, 2:12 PM CDTSpecial Weather StatementSHVGrant, LaSalle, Winn63 min
Jun 7, 8:47 PM CDTRiver Flood WarningSHVLittle River, Sevier4 days
Jun 7, 8:47 PM CDTRiver Flood WarningSHVHoward, Little River, Sevier5 days
Jun 8, 7:30 AM CDTFlash Flood Warning Considerable damage threatSHVSevier4 hr
Jun 8, 9:40 AM CDTFlash Flood Warning Considerable damage threatSHVHoward, Little River, Sevier3 hr
Jun 8, 11:00 AM CDTAreal Flood WarningSHVSevier6 hr
Jun 8, 11:27 AM CDTSpecial Weather StatementSHVHempstead, Nevada48 min
Jun 8, 11:48 AM CDTFlash Flood Warning Considerable damage threatSHVHempstead, Nevada2 hr
Jun 8, 12:31 PM CDTSpecial Weather StatementSHVNevada44 min
Jun 8, 4:59 PM CDTAreal Flood AdvisorySHVNevada2 hr
Jun 7, 8:44 PM CDTRiver Flood WarningSHVMcCurtain13 hr
Jun 8, 5:48 AM CDTFlash Flood Warning EmergencySHVMcCurtain5 hr
Jun 8, 6:09 AM CDTSpecial Weather StatementSHVMcCurtain36 min
Jun 8, 8:57 AM CDTFlash Flood Warning Considerable damage threatSHVMcCurtain2 hr
Jun 8, 12:02 PM CDTRiver Flood WarningSHVMcCurtain8 hr

Nearby

Special Weather Statements in Louisiana, 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.