Alert archive / Louisiana / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 241, NWS Jackson, MS
NWS Jackson, MS issued this severe thunderstorm warning at Jul 12, 2021, 2:33 AM CDT for Franklin Parish, Richland Parish, Louisiana. It was in force for 42 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
- Jul 12, 2021, 2:33 AM CDT (07:33 UTC)
- Expired
- Jul 12, 2021, 3:15 AM CDT
- In force
- 42 min
- Issued by
- NWS Jackson, MS
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Franklin Parish, LA, Richland Parish, LA
The radar
The Jackson/Brandon,MS radar (KDGX), 155 km from the middle of the area, began a volume at 07:34 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
Jackson, MS (KJAN), launched 00:00Z, 7.6 hours before the alert went out and 145 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.
- Mixed-layer CAPE
- 691 J/kg
- Mixed-layer CIN
- -2 J/kg
- Mixed-layer LCL
- 670 m above ground
- 0-6 km bulk shear
- 17 kt
- 0-1 km storm-relative helicity
- 82 m²/s²
- 0-3 km storm-relative helicity
- 97 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
192
WUUS54 KJAN 120733
SVRJAN
LAC041-083-120815-
/O.NEW.KJAN.SV.W.0241.210712T0733Z-210712T0815Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Jackson MS
233 AM CDT Mon Jul 12 2021
The National Weather Service in Jackson has issued a
* Severe Thunderstorm Warning for...
Richland Parish in northeastern Louisiana...
Northern Franklin Parish in northeastern Louisiana...
* Until 315 AM CDT.
* At 232 AM CDT, severe thunderstorms were located along a line
extending from near Rayville to Mangham to near Liddieville, moving
east at 25 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
* Severe thunderstorms will be near...
Rayville around 240 AM CDT.
Holly Ridge around 255 AM CDT.
Crowville and Bakers around 305 AM CDT.
Delhi and Warden around 315 AM CDT.
Other locations impacted by these severe thunderstorms include
Baskin.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Damaging winds and continuous cloud to ground lightning is occurring
with these storms. Move indoors immediately. Lightning is one of
nature's leading killers. Remember, if you can hear thunder, you are
close enough to be struck by lightning.
Torrential rainfall is occurring with these storms, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 3254 9188 3252 9184 3257 9181 3256 9174
3261 9172 3263 9165 3263 9160 3258 9159
3258 9145 3249 9149 3240 9149 3236 9145
3235 9150 3232 9147 3225 9156 3224 9151
3221 9155 3220 9149 3216 9149 3212 9188
TIME...MOT...LOC 0732Z 250DEG 23KT 3244 9180 3230 9176 3220 9182
HAIL...<.75IN
WIND...60MPH
$$
DC1 follow-up statement
011
WWUS54 KJAN 120806
SVSJAN
Severe Weather Statement
National Weather Service Jackson MS
306 AM CDT Mon Jul 12 2021
LAC041-083-120816-
/O.EXP.KJAN.SV.W.0241.000000T0000Z-210712T0815Z/
Richland LA-Franklin LA-
306 AM CDT Mon Jul 12 2021
...THE SEVERE THUNDERSTORM WARNING FOR RICHLAND AND NORTHERN FRANKLIN
PARISHES WILL EXPIRE AT 315 AM CDT...
The storms which prompted the warning have moved out of the area.
Therefore, the warning will be allowed to expire.
LAT...LON 3254 9188 3252 9184 3257 9181 3256 9174
3261 9172 3263 9165 3263 9160 3258 9159
3258 9145 3249 9149 3240 9149 3236 9145
3235 9150 3232 9147 3225 9156 3224 9151
3221 9155 3220 9149 3216 9149 3212 9188
TIME...MOT...LOC 0806Z 250DEG 23KT 3251 9158 3237 9154 3227 9160
$$
DCThe office that day
Everything else NWS Jackson, MS issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 12, 2:15 AM CDT | Special Weather Statement | JAN | Franklin, Richland | 45 min |
| Jul 12, 3:00 AM CDT | Severe Thunderstorm Warning | JAN | East Carroll, Madison | 45 min |
| Jul 12, 3:26 AM CDT | Special Weather Statement | JAN | Tensas | 49 min |
| Jul 12, 6:45 AM CDT | Special Weather Statement | JAN | Catahoula, Concordia, Tensas | 45 min |
Nearby
Severe Thunderstorm Warnings in Louisiana, 2021Every severe thunderstorm warning 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.