Alert archive / Louisiana / Special Weather Statements in 2021

Special Weather Statement, NWS Jackson, MS

June 28, 2021Catahoula Parish, Louisiana

NWS Jackson, MS issued this special weather statement at Jun 28, 2021, 2:08 PM CDT for Catahoula Parish, Louisiana. It was in force for 52 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 28, 2021, 2:08 PM CDT (19:08 UTC)
Expired
Jun 28, 2021, 3:00 PM CDT
In force
52 min
Issued by
NWS Jackson, MS

County Catahoula Parish, LA

The nearest sounding before it

Jackson, MS (KJAN), launched 12:00Z, 7.1 hours before the alert went out and 154 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, Jackson, MS at 12:00Z on 2021-06-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 828 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, Jackson, MS at 12:00Z on 2021-06-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 48 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
828 J/kg
Mixed-layer CIN
-52 J/kg
Mixed-layer LCL
715 m above ground
0-6 km bulk shear
21 kt
0-1 km storm-relative helicity
48 m²/s²
0-3 km storm-relative helicity
62 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.7

Open this sounding in Storm Lab

The text

As transmitted.

171 
WWUS84 KJAN 281908
SPSJAN

Special Weather Statement
National Weather Service Jackson MS
208 PM CDT Mon Jun 28 2021
 
LAZ024>026-282000-
Tensas LA-Concordia LA-Catahoula LA-
208 PM CDT Mon Jun 28 2021

...A STRONG THUNDERSTORM WILL AFFECT SOUTHWESTERN TENSAS...
NORTHEASTERN CONCORDIA AND NORTHEASTERN CATAHOULA PARISHES UNTIL 300
PM CDT...

At 208 PM CDT, Meteorologists were tracking a strong thunderstorm
over Vidalia, moving northwest at 30 mph.

Winds in excess of 40 mph will be possible with this storm.

This strong thunderstorm will be near...
  Ferriday and Spokane around 220 PM CDT.
  West Ferriday around 225 PM CDT.
  Clayton around 230 PM CDT.
  Lee Bayou around 235 PM CDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

High winds can bring down trees and large limbs resulting in serious
injury or property damage. Exercise extreme caution when outdoors
during such strong winds...and be especially aware of older trees.

&&

LAT...LON 3171 9183 3188 9160 3188 9158 3174 9137
      3171 9140 3164 9139 3164 9140 3172 9148
      3155 9167
TIME...MOT...LOC 1908Z 135DEG 25KT 3159 9146 

$$

TW

The office that day

Everything else NWS Jackson, MS issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 28, 1:29 PM CDTSpecial Weather StatementJANAdams31 min
Jun 28, 1:47 PM CDTSpecial Weather StatementJANAdams43 min
Jun 28, 4:30 PM CDTSpecial Weather StatementJANForrest, Jones, Lamar60 min
Jun 28, 5:24 PM CDTSpecial Weather StatementJANMarion66 min
Jun 28, 6:06 PM CDTSpecial Weather StatementJANJefferson Davis, Lawrence54 min
Jun 28, 3:36 PM CDTSpecial Weather StatementJANFranklin, Richland24 min

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.