Alert archive / Louisiana / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 84, NWS Jackson, MS
NWS Jackson, MS issued this severe thunderstorm warning at Apr 9, 2021, 6:55 PM CDT for 4 parishes in Louisiana. It was in force for 80 min. 2 reports came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Apr 9, 2021, 6:55 PM CDT (23:55 UTC)
- Expired
- Apr 9, 2021, 8:15 PM CDT
- In force
- 80 min
- Issued by
- NWS Jackson, MS
- Area
- Storm-based polygon
- Hail
- 1.25 in
- Wind
- 60.0 mph
Counties Franklin Parish, LA, Madison Parish, LA, Richland Parish, LA, Tensas Parish, LA
The radar
The Jackson/Brandon,MS radar (KDGX), 121 km from the middle of the area, began a volume at 23:59 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Apr 9, 7:01 PM CDT | HAIL 2 | 5 Se Crowville, LA | SOCIAL MEDIA PICTURE OF 2 INCH HAIL STONES IN THE SWAMPERS AREA. |
| Apr 9, 8:04 PM CDT | HAIL 1 | 3 Ssw Waverly, LA | SOCIAL MEDIA PICTURE OF AT LEAST QUARTER SIZE HAIL FALLING SOUTHEAST OF DELHI. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Apr 9, 3:42 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Jackson, MS (KJAN), launched 12:00Z, 11.9 hours before the alert went out and 111 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
- 1659 J/kg
- Mixed-layer CIN
- -54 J/kg
- Mixed-layer LCL
- 787 m above ground
- 0-6 km bulk shear
- 41 kt
- 0-1 km storm-relative helicity
- 127 m²/s²
- 0-3 km storm-relative helicity
- 150 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 4.4
The text
As transmitted.
374
WUUS54 KJAN 092355
SVRJAN
LAC041-065-083-107-100115-
/O.NEW.KJAN.SV.W.0084.210409T2355Z-210410T0115Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Jackson MS
655 PM CDT Fri Apr 9 2021
The National Weather Service in Jackson has issued a
* Severe Thunderstorm Warning for...
Northwestern Tensas Parish in northeastern Louisiana...
Madison Parish in northeastern Louisiana...
Northeastern Richland Parish in northeastern Louisiana...
Northeastern Franklin Parish in northeastern Louisiana...
* Until 815 PM CDT.
* At 654 PM CDT, a severe thunderstorm was located near Newlight, or
12 miles east of Winnsboro, moving north at 30 mph.
HAZARD...60 mph wind gusts and half dollar size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage
to roofs, siding, and trees.
* This severe thunderstorm will be near...
Crowville around 705 PM CDT.
Bakers around 720 PM CDT.
Delhi around 735 PM CDT.
Tendal and Waverly around 740 PM CDT.
Other locations impacted by this severe thunderstorm include
Richmond.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3257 9148 3257 9143 3255 9144 3254 9144
3254 9113 3255 9113 3254 9110 3253 9106
3252 9106 3253 9107 3253 9110 3250 9112
3248 9112 3246 9110 3202 9134 3213 9166
TIME...MOT...LOC 2354Z 201DEG 24KT 3215 9151
HAIL...1.25IN
WIND...60MPH
$$
DB3 follow-up statements
857
WWUS54 KJAN 092358
SVSJAN
Severe Weather Statement
National Weather Service Jackson MS
658 PM CDT Fri Apr 9 2021
LAC041-065-083-107-100115-
/O.CON.KJAN.SV.W.0084.000000T0000Z-210410T0115Z/
Tensas LA-Madison LA-Richland LA-Franklin LA-
658 PM CDT Fri Apr 9 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 815 PM CDT
FOR NORTHWESTERN TENSAS...MADISON...NORTHEASTERN RICHLAND AND
NORTHEASTERN FRANKLIN PARISHES...
At 658 PM CDT, a severe thunderstorm was located near Newlight, or 13
miles east of Winnsboro, moving north at 30 mph.
HAZARD...Tennis ball size hail and 60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...People and animals outdoors will be injured. Expect hail
damage to roofs, siding, windows, and vehicles. Expect wind
damage to roofs, siding, and trees.
This severe storm will be near...
Bakers around 720 PM CDT.
Delhi around 735 PM CDT.
Tendal and Waverly around 740 PM CDT.
Other locations impacted by this severe thunderstorm include
Richmond.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3257 9148 3257 9143 3255 9144 3254 9144
3254 9113 3255 9113 3254 9110 3253 9106
3252 9106 3253 9107 3253 9110 3250 9112
3248 9112 3246 9110 3202 9134 3213 9166
TIME...MOT...LOC 2358Z 201DEG 24KT 3218 9150
HAIL...2.50IN
WIND...60MPH
$$
DB281
WWUS54 KJAN 100033
SVSJAN
Severe Weather Statement
National Weather Service Jackson MS
733 PM CDT Fri Apr 9 2021
LAC107-100042-
/O.CAN.KJAN.SV.W.0084.000000T0000Z-210410T0115Z/
Tensas LA-
733 PM CDT Fri Apr 9 2021
...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN TENSAS PARISH IS
CANCELLED...
The severe thunderstorm which prompted the warning has moved out of
the warned area. Therefore, the warning has been cancelled.
A Severe Thunderstorm Watch remains in effect until 1100 PM CDT for
northeastern Louisiana...and west central Mississippi.
LAT...LON 3257 9148 3257 9144 3255 9144 3254 9146
3254 9113 3255 9112 3254 9110 3253 9107
3253 9110 3250 9112 3248 9112 3246 9110
3221 9124 3223 9128 3220 9132 3220 9149
3219 9149 3218 9163
TIME...MOT...LOC 0032Z 209DEG 27KT 3233 9140
$$
LAC041-065-083-100115-
/O.CON.KJAN.SV.W.0084.000000T0000Z-210410T0115Z/
Madison LA-Richland LA-Franklin LA-
733 PM CDT Fri Apr 9 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 815 PM CDT
FOR MADISON...NORTHEASTERN RICHLAND AND NORTHEASTERN FRANKLIN
PARISHES...
At 732 PM CDT, a severe thunderstorm was located near Bakers, or 13
miles west of Tallulah, moving northeast at 30 mph.
HAZARD...Two inch hail and 60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...People and animals outdoors will be injured. Expect hail
damage to roofs, siding, windows, and vehicles. Expect wind
damage to roofs, siding, and trees.
This severe storm will be near...
Tendal and Waverly around 745 PM CDT.
Omega around 810 PM CDT.
Other locations impacted by this severe thunderstorm include
Richmond.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3257 9148 3257 9144 3255 9144 3254 9146
3254 9113 3255 9112 3254 9110 3253 9107
3253 9110 3250 9112 3248 9112 3246 9110
3221 9124 3223 9128 3220 9132 3220 9149
3219 9149 3218 9163
TIME...MOT...LOC 0032Z 209DEG 27KT 3233 9140
HAIL...2.00IN
WIND...60MPH
$$
DB487
WWUS54 KJAN 100106
SVSJAN
Severe Weather Statement
National Weather Service Jackson MS
806 PM CDT Fri Apr 9 2021
LAC041-065-083-100115-
/O.CON.KJAN.SV.W.0084.000000T0000Z-210410T0115Z/
Madison LA-Richland LA-Franklin LA-
806 PM CDT Fri Apr 9 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 815 PM CDT
FOR NORTHWESTERN MADISON...NORTHEASTERN RICHLAND AND NORTHEASTERN
FRANKLIN PARISHES...
At 805 PM CDT, a severe thunderstorm was located over Tendal, or 11
miles west of Tallulah, moving north at 20 mph.
HAZARD...60 mph wind gusts and half dollar size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage to
roofs, siding, and trees.
This severe storm will be near...
Tendal and Waverly around 815 PM CDT.
Other locations impacted by this severe thunderstorm include
Richmond.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3232 9147 3234 9157 3257 9148 3257 9144
3254 9146 3254 9110 3250 9112 3248 9112
3246 9110 3226 9121 3223 9128
TIME...MOT...LOC 0105Z 202DEG 15KT 3239 9138
HAIL...1.25IN
WIND...60MPH
$$
NFThe office that day
Everything else NWS Jackson, MS issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 9, 5:47 PM CDT | Severe Thunderstorm Warning | JAN | Morehouse, Richland, West Carroll | 88 min |
| Apr 9, 5:55 PM CDT | Severe Thunderstorm Warning | JAN | Morehouse | 65 min |
| Apr 9, 6:52 PM CDT | Severe Thunderstorm Warning | JAN | East Carroll, West Carroll | 68 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.