Alert archive / Mississippi / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 169, NWS Jackson, MS

May 9, 2021East Carroll Parish, Louisiana; Issaquena County, Sharkey County, Washington County, Mississippi

NWS Jackson, MS issued this severe thunderstorm warning at May 9, 2021, 9:06 PM CDT for East Carroll Parish, Louisiana; Issaquena County, Sharkey County, Washington County, Mississippi. It was in force for 39 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, 9:06 PM CDT (02:06 UTC)
Expired: May 9, 2021, 9:45 PM CDT
In force: 39 min
Issued by: NWS Jackson, MS
Area: Storm-based polygon
Tornado: Possible
Hail: 1.0 in
Wind: 60.0 mph

Counties East Carroll Parish, LA, Issaquena County, MS, Sharkey County, MS, Washington County, MS

The radar

The Jackson/Brandon,MS radar (KDGX), 125 km from the middle of the area, began a volume at 02:09 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, 9:30 PM CDT	TSTM WND DMG	Glen Allan, MS	A COUPLE OF TREES WERE BLOWN DOWN.

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, 7:29 PM CDT	Severe Thunderstorm Watch	SPC	4 hr

The nearest sounding before it

Jackson, MS (KJAN), launched 00:00Z, 2.1 hours before the alert went out and 115 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.

863 
WUUS54 KJAN 100206
SVRJAN
LAC035-MSC055-125-151-100245-
/O.NEW.KJAN.SV.W.0169.210510T0206Z-210510T0245Z/

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

The National Weather Service in Jackson has issued a

* Severe Thunderstorm Warning for...
  Northeastern East Carroll Parish in northeastern Louisiana...
  South central Washington County in northwestern Mississippi...
  Northwestern Issaquena County in west central Mississippi...
  Northwestern Sharkey County in west central Mississippi...

* Until 945 PM CDT.

* At 906 PM CDT, a severe thunderstorm was located near Shelburn, or
  7 miles north of Lake Providence, moving northeast 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 be near...
  Glen Allan around 930 PM CDT.
  Grace around 935 PM CDT.

Other locations impacted by this severe thunderstorm include
Mayersville.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3279 9122 3287 9128 3311 9097 3290 9082
TIME...MOT...LOC 0206Z 240DEG 22KT 3292 9113 

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

TW

2 follow-up statements

535 
WWUS54 KJAN 100217
SVSJAN

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

LAC035-MSC055-125-151-100245-
/O.CON.KJAN.SV.W.0169.000000T0000Z-210510T0245Z/
East Carroll LA-Washington MS-Issaquena MS-Sharkey MS-
917 PM CDT Sun May 9 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 945 PM CDT
FOR NORTHEASTERN EAST CARROLL PARISH...SOUTH CENTRAL WASHINGTON...
NORTHWESTERN ISSAQUENA AND NORTHWESTERN SHARKEY COUNTIES...

At 917 PM CDT, a severe thunderstorm was located near Glen Allan, or
10 miles west of Rolling Fork, moving northeast 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 storm will be near...
  Glen Allan around 925 PM CDT.
  Grace around 935 PM CDT.
  Rolling Fork around 940 PM CDT.

Other locations impacted by this severe thunderstorm include
Mayersville.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3281 9114 3293 9120 3311 9097 3290 9082
TIME...MOT...LOC 0217Z 245DEG 22KT 3293 9105 

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

TW

605 
WWUS54 KJAN 100226
SVSJAN

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

LAC035-100236-
/O.CAN.KJAN.SV.W.0169.000000T0000Z-210510T0245Z/
East Carroll LA-
926 PM CDT Sun May 9 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN EAST CARROLL
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 200 AM CDT for
northeastern Louisiana...and west central Mississippi.

LAT...LON 3311 9097 3290 9082 3283 9107 3286 9111
      3289 9107 3292 9106 3295 9108 3298 9109
      3299 9110 3299 9112
TIME...MOT...LOC 0226Z 242DEG 22KT 3296 9098 

$$

MSC055-125-151-100245-
/O.CON.KJAN.SV.W.0169.000000T0000Z-210510T0245Z/
Washington MS-Issaquena MS-Sharkey MS-
926 PM CDT Sun May 9 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 945 PM CDT
FOR SOUTH CENTRAL WASHINGTON...NORTHWESTERN ISSAQUENA AND
NORTHWESTERN SHARKEY COUNTIES...

At 926 PM CDT, a severe thunderstorm was located near Grace, or near
Rolling Fork, moving northeast at 25 mph.

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

SOURCE...Radar indicated.

IMPACT...Expect damage to roofs, siding, and trees.

This severe storm will be near...
  Grace around 930 PM CDT.
  Rolling Fork around 935 PM CDT.

Other locations impacted by this severe thunderstorm include
Mayersville.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3311 9097 3290 9082 3283 9107 3286 9111
      3289 9107 3292 9106 3295 9108 3298 9109
      3299 9110 3299 9112
TIME...MOT...LOC 0226Z 242DEG 22KT 3296 9098 

TORNADO...POSSIBLE
HAIL...0.75IN
WIND...60MPH
 
$$

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, 8:48 PM CDT	Severe Thunderstorm Warning	JAN	Morehouse	29 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
May 9, 7:32 PM CDT	Severe Thunderstorm Warning	JAN	Bolivar, Sunflower	73 min
May 9, 7:57 PM CDT	Severe Thunderstorm Warning	JAN	Clay, Webster	43 min
May 9, 8:21 PM CDT	Severe Thunderstorm Warning	JAN	Lowndes	28 min
May 9, 8:55 PM CDT	Special Weather Statement	JAN	Issaquena	35 min
May 9, 9:36 PM CDT	Severe Thunderstorm Warning	JAN	Yazoo	37 min
May 9, 10:12 PM CDT	Severe Thunderstorm Warning	JAN	Warren, Yazoo	62 min
May 9, 10:16 PM CDT	Severe Thunderstorm Warning	JAN	Holmes, Humphreys, Yazoo	35 min
May 9, 10:24 PM CDT	Flash Flood Warning	JAN	Holmes, Humphreys, Sharkey, Yazoo	86 min
May 9, 10:34 PM CDT	Flash Flood Warning	JAN	Carroll, Choctaw, Clay, Lowndes, Montgomery, Oktibbeha and 1 more	78 min
May 9, 10:38 PM CDT	Severe Thunderstorm Warning	JAN	Hinds, Madison, Rankin	82 min

Nearby

Severe Thunderstorm Warnings in Mississippi, 2021 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.