Alert archive / Mississippi / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 171, NWS Jackson, MS

May 9, 2021Yazoo County, Mississippi

NWS Jackson, MS issued this severe thunderstorm warning at May 9, 2021, 9:36 PM CDT for Yazoo County, Mississippi. It was in force for 37 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, 9:36 PM CDT (02:36 UTC)
Expired: May 9, 2021, 10:13 PM CDT
In force: 37 min
Issued by: NWS Jackson, MS
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

County Yazoo County, MS

The radar

The Jackson/Brandon,MS radar (KDGX), 62 km from the middle of the area, began a volume at 02:36 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.

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, 2.6 hours before the alert went out and 53 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.

149 
WUUS54 KJAN 100236
SVRJAN
MSC163-100345-
/O.NEW.KJAN.SV.W.0171.210510T0236Z-210510T0345Z/

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

The National Weather Service in Jackson has issued a

* Severe Thunderstorm Warning for...
  Central Yazoo County in central Mississippi...

* Until 1045 PM CDT.

* At 936 PM CDT, a severe thunderstorm was located 7 miles north of
  Phoenix, or 15 miles southwest of Yazoo City, moving northeast 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 be near...
  Tinsley around 1000 PM CDT.
  Little Yazoo around 1010 PM CDT.
  Yazoo City around 1020 PM CDT.
  Myrleville around 1025 PM CDT.
  Benton around 1040 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 3271 9011 3257 9055 3277 9068 3297 9026
TIME...MOT...LOC 0236Z 244DEG 18KT 3269 9058 

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

19

3 follow-up statements

437 
WWUS54 KJAN 100250
SVSJAN

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

MSC163-100345-
/O.CON.KJAN.SV.W.0171.000000T0000Z-210510T0345Z/
Yazoo MS-
950 PM CDT Sun May 9 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1045 PM CDT
FOR CENTRAL YAZOO COUNTY...

At 950 PM CDT, a severe thunderstorm was located over Tinsley, or 10
miles south of Yazoo City, 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...
  Little Yazoo around 1000 PM CDT.
  Myrleville around 1010 PM CDT.
  Benton around 1020 PM CDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3271 9011 3264 9048 3279 9056 3297 9026
TIME...MOT...LOC 0250Z 243DEG 24KT 3272 9045 

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

19

721 
WWUS54 KJAN 100258
SVSJAN

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

MSC163-100345-
/O.CON.KJAN.SV.W.0171.000000T0000Z-210510T0345Z/
Yazoo MS-
958 PM CDT Sun May 9 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1045 PM CDT
FOR CENTRAL YAZOO COUNTY...

At 958 PM CDT, a severe thunderstorm was located near Little Yazoo,
or 8 miles southeast of Yazoo City, moving northeast at 40 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...
  Benton around 1010 PM CDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3271 9011 3268 9040 3284 9048 3297 9026
TIME...MOT...LOC 0258Z 243DEG 33KT 3275 9035 

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

19

203 
WWUS54 KJAN 100313
SVSJAN

Severe Weather Statement
National Weather Service Jackson MS
1013 PM CDT Sun May 9 2021

MSC163-100323-
/O.CAN.KJAN.SV.W.0171.000000T0000Z-210510T0345Z/
Yazoo MS-
1013 PM CDT Sun May 9 2021

...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL YAZOO COUNTY IS
CANCELLED...
                
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning has been cancelled.

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

LAT...LON 3271 9011 3268 9040 3284 9048 3297 9026
TIME...MOT...LOC 0312Z 244DEG 18KT 3278 9027 

$$

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, 9:45 PM CDT	Severe Thunderstorm Warning	JAN	Issaquena, Sharkey	60 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 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.