Alert archive / Mississippi / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 173, NWS Jackson, MS

May 9, 2021Warren County, Yazoo County, Mississippi

NWS Jackson, MS issued this severe thunderstorm warning at May 9, 2021, 10:12 PM CDT for Warren County, Yazoo County, Mississippi. It was in force for 62 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: May 9, 2021, 10:12 PM CDT (03:12 UTC)
Expired: May 9, 2021, 11:14 PM CDT
In force: 62 min
Issued by: NWS Jackson, MS
Area: Storm-based polygon
Tornado: Possible
Hail: 0.75 in
Wind: 70.0 mph

Counties Warren County, MS, Yazoo County, MS

The radar

The Jackson/Brandon,MS radar (KDGX), 72 km from the middle of the area, began a volume at 03:16 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, 10:20 PM CDT	TSTM WND DMG	1 Wsw Yazoo City, MS	A TREE WAS BLOWN DOWN ON A HOUSE.
May 9, 10:40 PM CDT	TSTM WND DMG	Yazoo City, MS	A FEW TREES WERE DOWNED IN YAZOO CITY.

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, 3.2 hours before the alert went out and 63 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.

639 
WUUS54 KJAN 100312
SVRJAN
MSC149-163-100430-
/O.NEW.KJAN.SV.W.0173.210510T0312Z-210510T0430Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Jackson MS
1012 PM CDT Sun May 9 2021

The National Weather Service in Jackson has issued a

* Severe Thunderstorm Warning for...
  Northeastern Warren County in west central Mississippi...
  Yazoo County in central Mississippi...

* Until 1130 PM CDT.

* At 1012 PM CDT, a severe thunderstorm was located 7 miles northeast
  of Valley Park, moving east at 40 mph.

  HAZARD...70 mph wind gusts and penny size hail.

  SOURCE...Radar indicated.

  IMPACT...Expect considerable tree damage. Damage is likely to 
           mobile homes, roofs, and outbuildings.

* This severe thunderstorm will be near...
  Holly Bluff around 1015 PM CDT.
  Phoenix around 1035 PM CDT.
  Tinsley around 1040 PM CDT.
  Little Yazoo around 1050 PM CDT.
  Myrleville around 1055 PM CDT.

Other locations impacted by this severe thunderstorm include Satartia
and Bentonia.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3257 9073 3269 9070 3266 9069 3267 9066
      3273 9074 3276 9073 3276 9069 3279 9072
      3281 9069 3282 9076 3292 9066 3292 9009
      3288 8997 3270 9010 3266 9028 3258 9040
      3259 9044 3247 9060 3249 9086 3257 9086
TIME...MOT...LOC 0312Z 280DEG 34KT 3272 9078 

TORNADO...POSSIBLE
HAIL...0.75IN
WIND...70MPH
 
$$

19

3 follow-up statements

210 
WWUS54 KJAN 100322
SVSJAN

Severe Weather Statement
National Weather Service Jackson MS
1022 PM CDT Sun May 9 2021

MSC149-163-100430-
/O.CON.KJAN.SV.W.0173.000000T0000Z-210510T0430Z/
Warren MS-Yazoo MS-
1022 PM CDT Sun May 9 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1130 PM CDT
FOR NORTHEASTERN WARREN AND YAZOO COUNTIES...

At 1021 PM CDT, severe thunderstorms were located along a line
extending from near Holly Bluff to 8 miles west of Phoenix to near
Redwood, moving east at 40 mph.

HAZARD...70 mph wind gusts and penny size hail.

SOURCE...Radar indicated.

IMPACT...Expect considerable tree damage. Damage is likely to mobile 
         homes, roofs, and outbuildings.

These severe storms will be near...
  Oak Ridge around 1030 PM CDT.
  Phoenix around 1035 PM CDT.
  Tinsley around 1045 PM CDT.
  Little Yazoo around 1050 PM CDT.
  Myrleville around 1100 PM CDT.

Other locations impacted by these severe thunderstorms include
Satartia and Bentonia.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3257 9073 3269 9070 3266 9069 3267 9066
      3273 9074 3276 9073 3276 9069 3279 9072
      3281 9069 3282 9076 3292 9066 3292 9009
      3288 8997 3270 9010 3266 9028 3258 9040
      3259 9044 3247 9060 3249 9086 3257 9086
TIME...MOT...LOC 0321Z 289DEG 36KT 3277 9071 3263 9070 3254 9078 

TORNADO...POSSIBLE
HAIL...0.75IN
WIND...70MPH
 
$$

19

689 
WWUS54 KJAN 100408
SVSJAN

Severe Weather Statement
National Weather Service Jackson MS
1108 PM CDT Sun May 9 2021

MSC149-100417-
/O.CAN.KJAN.SV.W.0173.000000T0000Z-210510T0430Z/
Warren MS-
1108 PM CDT Sun May 9 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN WARREN COUNTY 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
central and west central Mississippi.

LAT...LON 3265 9051 3263 9044 3258 9040 3259 9044
      3251 9055 3252 9056 3253 9055 3253 9057
      3257 9060
TIME...MOT...LOC 0407Z 289DEG 11KT 3253 9046 

$$

MSC163-100430-
/O.CON.KJAN.SV.W.0173.000000T0000Z-210510T0430Z/
Yazoo MS-
1108 PM CDT Sun May 9 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1130 PM CDT
FOR SOUTH CENTRAL YAZOO COUNTY...

At 1107 PM CDT, a severe thunderstorm was located near Brownsville,
or 15 miles northwest of Clinton, moving east at 40 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

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

This severe thunderstorm will remain over mainly rural areas of south
central Yazoo County.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3265 9051 3263 9044 3258 9040 3259 9044
      3251 9055 3252 9056 3253 9055 3253 9057
      3257 9060
TIME...MOT...LOC 0407Z 289DEG 11KT 3253 9046 

HAIL...<.75IN
WIND...60MPH
 
$$

19

528 
WWUS54 KJAN 100414
SVSJAN

Severe Weather Statement
National Weather Service Jackson MS
1114 PM CDT Sun May 9 2021

MSC163-100423-
/O.CAN.KJAN.SV.W.0173.000000T0000Z-210510T0430Z/
Yazoo MS-
1114 PM CDT Sun May 9 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTH CENTRAL YAZOO COUNTY IS
CANCELLED...
        
The storm which prompted the warning has weakened below severe
limits, and has exited the warned area. Therefore, the warning has
been cancelled.  However gusty winds are still possible with this
thunderstorm.

A Severe Thunderstorm Watch remains in effect until 200 AM CDT for
central and west central Mississippi.

LAT...LON 3265 9051 3263 9044 3258 9040 3259 9044
      3251 9055 3252 9056 3253 9055 3253 9057
      3257 9060
TIME...MOT...LOC 0412Z 280DEG 34KT 3252 9038 

$$

19

The office that day

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

Issued	Product	Office	Counties	Lasted
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, 9:06 PM CDT	Severe Thunderstorm Warning	JAN	Issaquena, Sharkey, Washington	39 min
May 9, 9:36 PM CDT	Severe Thunderstorm Warning	JAN	Yazoo	37 min
May 9, 9:45 PM CDT	Severe Thunderstorm Warning	JAN	Issaquena, Sharkey	60 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 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.