Alert archive / Mississippi / Tornado Warnings in 2021

Tornado Warning 60, NWS Jackson, MS

May 18, 2021Rankin County, Simpson County, Mississippi

NWS Jackson, MS issued this tornado warning at May 18, 2021, 3:57 PM CDT for Rankin County, Simpson County, Mississippi. It was in force for 36 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: May 18, 2021, 3:57 PM CDT (20:57 UTC)
Expired: May 18, 2021, 4:33 PM CDT
In force: 36 min
Issued by: NWS Jackson, MS
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.0 in

Counties Rankin County, MS, Simpson County, MS

The radar

The Jackson/Brandon,MS radar (KDGX), 31 km from the middle of the area, began a volume at 20:55 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.

The nearest sounding before it

Jackson, MS (KJAN), launched 12:00Z, 9.0 hours before the alert went out and 32 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: 163 J/kg
Mixed-layer CIN: -21 J/kg
Mixed-layer LCL: 651 m above ground
0-6 km bulk shear: 7 kt
0-1 km storm-relative helicity: 116 m²/s²
0-3 km storm-relative helicity: 241 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.2

Open this sounding in Storm Lab

The text

As transmitted.

997 
WFUS54 KJAN 182057
TORJAN
MSC121-127-182200-
/O.NEW.KJAN.TO.W.0060.210518T2057Z-210518T2200Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Jackson MS
357 PM CDT Tue May 18 2021

The National Weather Service in Jackson has issued a

* Tornado Warning for...
  Southwestern Rankin County in central Mississippi...
  Northwestern Simpson County in central Mississippi...

* Until 500 PM CDT.
    
* At 357 PM CDT, a severe thunderstorm capable of producing a tornado
  was located over Pinola, moving northwest at 20 mph.

  HAZARD...Tornado.

  SOURCE...Radar indicated rotation.

  IMPACT...Flying debris will be dangerous to those caught without 
           shelter. Mobile homes will be damaged or destroyed. 
           Damage to roofs, windows, and vehicles will occur.  Tree 
           damage is likely.

* This dangerous storm will be near...
  Harrisville around 415 PM CDT.
  Star around 435 PM CDT.
  Whites around 445 PM CDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

&&

LAT...LON 3207 9023 3209 9024 3209 9025 3211 9024
      3216 9008 3189 8990 3186 9002
TIME...MOT...LOC 2057Z 144DEG 18KT 3191 8998 

TORNADO...RADAR INDICATED
HAIL...0.00IN

$$

DL

4 follow-up statements

198 
WWUS54 KJAN 182100
SVSJAN

Severe Weather Statement
National Weather Service Jackson MS
400 PM CDT Tue May 18 2021

MSC121-127-182200-
/O.CON.KJAN.TO.W.0060.000000T0000Z-210518T2200Z/
Rankin MS-Simpson MS-
400 PM CDT Tue May 18 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 500 PM CDT FOR
SOUTHWESTERN RANKIN AND NORTHWESTERN SIMPSON COUNTIES...
        
At 359 PM CDT, a confirmed tornado was located near Pinola, moving
northwest at 20 mph.

HAZARD...Damaging tornado.

SOURCE...Radar confirmed tornado.

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be damaged or destroyed. Damage 
         to roofs, windows, and vehicles will occur.  Tree damage is 
         likely.

This tornado will be near...
  Harrisville around 415 PM CDT.
  Star around 435 PM CDT.
  Whites around 445 PM CDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

To repeat, a tornado is on the ground. TAKE COVER NOW! Move to a
basement or an interior room on the lowest floor of a sturdy
building. Avoid windows. If you are outdoors, in a mobile home, or in
a vehicle, move to the closest substantial shelter and protect
yourself from flying debris.

&&

LAT...LON 3207 9023 3209 9024 3209 9025 3211 9024
      3216 9008 3192 8994 3189 9005
TIME...MOT...LOC 2059Z 144DEG 18KT 3192 8999 

TORNADO...OBSERVED
HAIL...0.00IN

$$

DL

302 
WWUS54 KJAN 182111
SVSJAN

Severe Weather Statement
National Weather Service Jackson MS
411 PM CDT Tue May 18 2021

MSC121-127-182200-
/O.CON.KJAN.TO.W.0060.000000T0000Z-210518T2200Z/
Rankin MS-Simpson MS-
411 PM CDT Tue May 18 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 500 PM CDT FOR
SOUTHWESTERN RANKIN AND NORTHWESTERN SIMPSON COUNTIES...
    
At 411 PM CDT, a severe thunderstorm capable of producing a tornado
was located near Harrisville, or 7 miles northwest of Pinola, moving
northwest at 20 mph.

HAZARD...Tornado.

SOURCE...Radar indicated rotation.

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be damaged or destroyed. Damage 
         to roofs, windows, and vehicles will occur.  Tree damage is 
         likely.

This dangerous storm will be near...
  Harrisville around 420 PM CDT.
  Star around 435 PM CDT.
  Whites around 450 PM CDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

&&

LAT...LON 3207 9023 3209 9024 3209 9025 3211 9024
      3216 9008 3196 8996 3194 9006
TIME...MOT...LOC 2111Z 145DEG 17KT 3197 9002 

TORNADO...RADAR INDICATED
HAIL...0.00IN

$$

DL

911 
WWUS54 KJAN 182126
SVSJAN

Severe Weather Statement
National Weather Service Jackson MS
426 PM CDT Tue May 18 2021

MSC121-127-182200-
/O.CON.KJAN.TO.W.0060.000000T0000Z-210518T2200Z/
Rankin MS-Simpson MS-
426 PM CDT Tue May 18 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 500 PM CDT FOR
SOUTHWESTERN RANKIN AND NORTH CENTRAL SIMPSON COUNTIES...
    
At 426 PM CDT, a severe thunderstorm capable of producing a tornado
was located over Harrisville, or near Star, moving northwest at 15
mph.

HAZARD...Tornado.

SOURCE...Radar indicated rotation.

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be damaged or destroyed. Damage 
         to roofs, windows, and vehicles will occur.  Tree damage is 
         likely.

This dangerous storm will be near...
  Whites around 500 PM CDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

&&

LAT...LON 3207 9023 3209 9024 3209 9025 3211 9024
      3216 9009 3200 9004 3198 9010
TIME...MOT...LOC 2126Z 135DEG 14KT 3200 9008 

TORNADO...RADAR INDICATED
HAIL...0.00IN

$$

DL

993 
WWUS54 KJAN 182133
SVSJAN

Severe Weather Statement
National Weather Service Jackson MS
433 PM CDT Tue May 18 2021

MSC121-127-182143-
/O.CAN.KJAN.TO.W.0060.000000T0000Z-210518T2200Z/
Rankin MS-Simpson MS-
433 PM CDT Tue May 18 2021

...THE TORNADO WARNING FOR SOUTHWESTERN RANKIN AND NORTH CENTRAL
SIMPSON COUNTIES IS CANCELLED...
                
The storm which prompted the warning has weakened below severe
limits, and no longer appears capable of producing a tornado.
Therefore, the warning has been cancelled.

To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
Jackson.

LAT...LON 3207 9023 3209 9024 3209 9025 3211 9024
      3216 9009 3200 9004 3198 9010
TIME...MOT...LOC 2131Z 144DEG 18KT 3203 9011 

$$

DL

The office that day

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

Issued	Product	Office	Counties	Lasted
May 18, 2:17 PM CDT	Special Weather Statement	JAN	Clarke	28 min
May 18, 3:10 PM CDT	Tornado Warning	JAN	Jefferson Davis, Lawrence, Simpson	38 min
May 18, 3:31 PM CDT	Tornado Warning	JAN	Jasper, Smith	47 min
May 18, 3:51 PM CDT	Tornado Warning	JAN	Jasper, Newton, Scott	34 min

Nearby

Tornado Warnings in Mississippi, 2021 Every tornado warning in 2021 Tornadoes 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.