Alert archive / Louisiana / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 168, NWS Jackson, MS

May 9, 2021Morehouse Parish, Louisiana

NWS Jackson, MS issued this severe thunderstorm warning at May 9, 2021, 8:48 PM CDT for Morehouse Parish, Louisiana. It was in force for 29 min. 1 report 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: May 9, 2021, 8:48 PM CDT (01:48 UTC)
Expired: May 9, 2021, 9:17 PM CDT
In force: 29 min
Issued by: NWS Jackson, MS
Area: Storm-based polygon
Tornado: Possible
Hail: 1.0 in
Wind: 60.0 mph

County Morehouse Parish, LA

The radar

The Jackson/Brandon,MS radar (KDGX), 163 km from the middle of the area, began a volume at 01:49 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
May 9, 8:50 PM CDT	TSTM WND DMG	Jones, LA	SOCIAL MEDIA REPORT OF A TREE DOWN ON POWER LINES IN THE JONES AREA.

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
May 9, 1:14 PM CDT	Severe Thunderstorm Watch	SPC	8 hr

The nearest sounding before it

Jackson, MS (KJAN), launched 00:00Z, 1.8 hours before the alert went out and 153 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 632 J/kg
Mixed-layer CIN: -123 J/kg
Mixed-layer LCL: 935 m above ground
0-6 km bulk shear: 57 kt
0-1 km storm-relative helicity: 212 m²/s²
0-3 km storm-relative helicity: 205 m²/s²
Significant tornado parameter: 0.5
Supercell composite: 1.1

Open this sounding in Storm Lab

The text

As transmitted.

172 
WUUS54 KJAN 100148
SVRJAN
LAC067-100230-
/O.NEW.KJAN.SV.W.0168.210510T0148Z-210510T0230Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Jackson MS
848 PM CDT Sun May 9 2021

The National Weather Service in Jackson has issued a

* Severe Thunderstorm Warning for...
  Northeastern Morehouse Parish in northeastern Louisiana...

* Until 930 PM CDT.

* At 848 PM CDT, a severe thunderstorm was located over Jones, or 9
  miles southwest of Wilmot, moving east at 20 mph.

  HAZARD...60 mph wind gusts and quarter size hail.

  SOURCE...Radar indicated.

  IMPACT...Hail damage to vehicles is expected. Expect wind damage 
           to roofs, siding, and trees.

* This severe thunderstorm will remain over mainly rural areas of
  northeastern Morehouse Parish, including the following locations...
  Bonita.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 3301 9175 3301 9144 3299 9144 3299 9145
      3297 9145 3294 9148 3293 9148 3290 9150
      3289 9150 3288 9151 3288 9155 3285 9157
      3283 9157 3282 9159 3289 9181
TIME...MOT...LOC 0148Z 290DEG 15KT 3295 9166 

TORNADO...POSSIBLE
HAIL...1.00IN
WIND...60MPH
 
$$

TW

3 follow-up statements

220 
WWUS54 KJAN 100156
SVSJAN

Severe Weather Statement
National Weather Service Jackson MS
856 PM CDT Sun May 9 2021

LAC067-100230-
/O.CON.KJAN.SV.W.0168.000000T0000Z-210510T0230Z/
Morehouse LA-
856 PM CDT Sun May 9 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 930 PM CDT
FOR NORTHEASTERN MOREHOUSE PARISH...

At 856 PM CDT, a severe thunderstorm was located near Jones, or 9
miles south of Wilmot, moving east at 25 mph.

HAZARD...60 mph wind gusts and quarter size hail.

SOURCE...Radar indicated.

IMPACT...Hail damage to vehicles is expected. Expect wind damage to 
         roofs, siding, and trees.

This severe thunderstorm will remain over mainly rural areas of
northeastern Morehouse Parish.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 3301 9163 3301 9144 3299 9144 3299 9145
      3297 9145 3294 9148 3293 9148 3290 9150
      3289 9150 3288 9151 3288 9155 3285 9157
      3283 9157 3282 9159 3285 9169
TIME...MOT...LOC 0156Z 285DEG 23KT 3293 9159 

TORNADO...POSSIBLE
HAIL...1.00IN
WIND...60MPH
 
$$

TW

813 
WWUS54 KJAN 100208
SVSJAN

Severe Weather Statement
National Weather Service Jackson MS
908 PM CDT Sun May 9 2021

LAC067-100230-
/O.CON.KJAN.SV.W.0168.000000T0000Z-210510T0230Z/
Morehouse LA-
908 PM CDT Sun May 9 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 930 PM CDT
FOR NORTHEASTERN MOREHOUSE PARISH...

At 908 PM CDT, a severe thunderstorm was located near Oak Grove, or
12 miles southeast of Wilmot, moving east at 25 mph.

HAZARD...60 mph wind gusts and quarter size hail.

SOURCE...Radar indicated.

IMPACT...Hail damage to vehicles is expected. Expect wind damage to 
         roofs, siding, and trees.

This severe thunderstorm will remain over mainly rural areas of
northeastern Morehouse Parish.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 3301 9156 3301 9144 3299 9144 3299 9145
      3297 9145 3294 9148 3293 9148 3290 9150
      3289 9150 3288 9151 3288 9155 3285 9157
      3283 9157 3282 9159 3284 9165
TIME...MOT...LOC 0208Z 289DEG 24KT 3290 9149 

TORNADO...POSSIBLE
HAIL...1.00IN
WIND...60MPH
 
$$

TW

102 
WWUS54 KJAN 100217 RRA
SVSJAN

Severe Weather Statement
National Weather Service Jackson MS
917 PM CDT Sun May 9 2021

LAC067-100227-
/O.CAN.KJAN.SV.W.0168.000000T0000Z-210510T0230Z/
Morehouse LA-
917 PM CDT Sun May 9 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN MOREHOUSE PARISH
IS CANCELLED...
        
The storm which prompted the warning has moved out of the area.
Therefore, the warning has been cancelled.

A Severe Thunderstorm Watch remains in effect until 200 AM CDT for
northeastern Louisiana.

LAT...LON 3301 9156 3301 9144 3299 9144 3299 9145
      3297 9145 3294 9148 3293 9148 3290 9150
      3289 9150 3288 9151 3288 9155 3285 9157
      3283 9157 3282 9159 3284 9165
TIME...MOT...LOC 0216Z 290DEG 15KT 3289 9144 

$$

TW

The office that day

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

Issued	Product	Office	Counties	Lasted
May 9, 7:04 PM CDT	Severe Thunderstorm Warning	JAN	Morehouse, Richland	41 min
May 9, 7:51 PM CDT	Tornado Warning	JAN	Morehouse	39 min
May 9, 8:30 PM CDT	Special Weather Statement	JAN	Morehouse	45 min
May 9, 9:06 PM CDT	Severe Thunderstorm Warning	JAN	East Carroll	39 min
May 9, 9:08 PM CDT	Severe Thunderstorm Warning	JAN	West Carroll	37 min
May 9, 9:45 PM CDT	Severe Thunderstorm Warning	JAN	East Carroll	60 min

Nearby

Severe Thunderstorm Warnings in Louisiana, 2021 Every 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.