Alert archive / Mississippi / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 157, NWS Jackson, MS
NWS Jackson, MS issued this severe thunderstorm warning at May 4, 2021, 3:38 PM CDT for 7 counties in Mississippi. It was in force for 82 min. 3 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 4, 2021, 3:38 PM CDT (20:38 UTC)
- Expired
- May 4, 2021, 5:00 PM CDT
- In force
- 82 min
- Issued by
- NWS Jackson, MS
- Area
- Storm-based polygon
- Hail
- 0.88 in
- Wind
- 70.0 mph
Counties Covington County, MS, Jefferson Davis County, MS, Jones County, MS, Lamar County, MS, Lawrence County, MS, Lincoln County, MS, Marion County, MS
The radar
The Jackson/Brandon,MS radar (KDGX), 107 km from the middle of the area, began a volume at 20:38 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 4, 4:00 PM CDT | TSTM WND DMG | Monticello, MS | A LARGE TREE FELL AND TOOK DOWN A POWER LINE AND TWO OTHER POWER POLES ASSOCIATED WITH MAIN FEEDER LINES WENT DOWN RESULTING IN POWER OUTAGES TO MOST OF MONTICELLO...REPORTED BY LAWRENCE COUNTY EM. |
| May 4, 4:00 PM CDT | TSTM WND DMG | Monticello, MS | LARGE LIMB FELL AND WENT THROUGH THE ROOF OF A HOUSE...REPORTED BY LAWRENCE COUNTY EM. |
| May 4, 4:34 PM CDT | TSTM WND DMG | 2 S Laurel, MS | TREE REPORTED DOWN ON QUEENSBURG AVE IN LAUREL. |
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 4, 9:18 AM CDT | Tornado Watch | SPC | 7 hr |
| May 4, 3:31 PM CDT | Tornado Watch | SPC | 6 hr |
The nearest sounding before it
Jackson, MS (KJAN), launched 12:00Z, 8.6 hours before the alert went out and 114 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.
- Mixed-layer CAPE
- 2428 J/kg
- Mixed-layer CIN
- -6 J/kg
- Mixed-layer LCL
- 646 m above ground
- 0-6 km bulk shear
- 35 kt
- 0-1 km storm-relative helicity
- 170 m²/s²
- 0-3 km storm-relative helicity
- 235 m²/s²
- Significant tornado parameter
- 2.8
- Supercell composite
- 13.2
The text
As transmitted.
352
WUUS54 KJAN 042038
SVRJAN
MSC031-065-067-073-077-085-091-042200-
/O.NEW.KJAN.SV.W.0157.210504T2038Z-210504T2200Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Jackson MS
338 PM CDT Tue May 4 2021
The National Weather Service in Jackson has issued a
* Severe Thunderstorm Warning for...
Marion County in south central Mississippi...
Southeastern Lincoln County in south central Mississippi...
Lawrence County in south central Mississippi...
Covington County in southeastern Mississippi...
Northwestern Lamar County in southeastern Mississippi...
Jones County in southeastern Mississippi...
Jefferson Davis County in south central Mississippi...
* Until 500 PM CDT.
* At 338 PM CDT, severe thunderstorms were located along a line
extending from near Raleigh to East Lincoln, moving southeast at 40
mph.
HAZARD...70 mph wind gusts and nickel size hail.
SOURCE...Radar indicated.
IMPACT...Expect considerable tree damage. Damage is likely to
mobile homes, roofs, and outbuildings.
* Severe thunderstorms will be near...
Robinwood around 355 PM CDT.
Tilton and Oak Vale around 405 PM CDT.
Holly Springs around 410 PM CDT.
Morgantown, Goss, Moss and Society Hill around 415 PM CDT.
Bunker Hill around 420 PM CDT.
Columbia around 425 PM CDT.
Sandersville and Improve around 430 PM CDT.
Other locations impacted by these severe thunderstorms include
Seminary, Silver Creek, Bassfield and Soso.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
A Tornado Watch remains in effect until 1000 PM CDT for south
central, central, southeastern and east central Mississippi.
LAT...LON 3107 8984 3108 8992 3113 8994 3113 9001
3134 9004 3135 9041 3177 8990 3183 8894
3177 8894 3143 8936 3143 8945 3136 8945
3104 8983
TIME...MOT...LOC 2038Z 297DEG 37KT 3205 8955 3150 9031
HAIL...0.88IN
WIND...70MPH
$$
TW3 follow-up statements
734
WWUS54 KJAN 042058
SVSJAN
Severe Weather Statement
National Weather Service Jackson MS
358 PM CDT Tue May 4 2021
MSC031-065-067-073-077-085-091-042200-
/O.CON.KJAN.SV.W.0157.000000T0000Z-210504T2200Z/
Marion MS-Lincoln MS-Lawrence MS-Covington MS-Lamar MS-Jones MS-
Jefferson Davis MS-
358 PM CDT Tue May 4 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 500 PM CDT
FOR MARION...SOUTHEASTERN LINCOLN...SOUTHERN LAWRENCE...COVINGTON...
NORTHWESTERN LAMAR...JONES AND JEFFERSON DAVIS COUNTIES...
At 357 PM CDT, severe thunderstorms were located along a line
extending from near Bay Springs to near Topeka, moving southeast at
45 mph.
HAZARD...70 mph wind gusts and nickel size hail.
SOURCE...Radar indicated.
IMPACT...Expect considerable tree damage. Damage is likely to mobile
homes, roofs, and outbuildings.
These severe storms will be near...
Society Hill around 415 PM CDT.
Morgantown, Goss, Moss and Bunker Hill around 420 PM CDT.
Columbia around 425 PM CDT.
Sandersville and Improve around 430 PM CDT.
Other locations impacted by these severe thunderstorms include
Seminary, Silver Creek, Bassfield and Soso.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
A Tornado Watch remains in effect until 1000 PM CDT for south
central, central, southeastern and east central Mississippi.
LAT...LON 3107 8984 3108 8992 3113 8994 3113 9001
3134 9004 3135 9041 3162 9008 3178 8972
3183 8894 3177 8894 3143 8936 3143 8945
3136 8945 3104 8983
TIME...MOT...LOC 2057Z 297DEG 37KT 3197 8936 3142 9012
HAIL...0.88IN
WIND...70MPH
$$
TW802
WWUS54 KJAN 042124
SVSJAN
Severe Weather Statement
National Weather Service Jackson MS
424 PM CDT Tue May 4 2021
MSC077-085-042134-
/O.CAN.KJAN.SV.W.0157.000000T0000Z-210504T2200Z/
Lincoln MS-Lawrence MS-
424 PM CDT Tue May 4 2021
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN LINCOLN AND
SOUTHERN LAWRENCE COUNTIES IS CANCELLED...
The storms which prompted the warning have moved out of the warned
area. Therefore, the warning has been cancelled.
A Tornado Watch remains in effect until 1000 PM CDT for south
central, southeastern and east central Mississippi.
LAT...LON 3104 8983 3107 8984 3108 8992 3113 8994
3113 9001 3139 9004 3139 8996 3143 8996
3182 8913 3182 8894 3177 8894 3143 8936
3143 8945 3136 8945
TIME...MOT...LOC 2124Z 297DEG 37KT 3185 8909 3130 8986
$$
MSC031-065-067-073-091-042200-
/O.CON.KJAN.SV.W.0157.000000T0000Z-210504T2200Z/
Marion MS-Covington MS-Lamar MS-Jones MS-Jefferson Davis MS-
424 PM CDT Tue May 4 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 500 PM CDT
FOR MARION...SOUTHEASTERN COVINGTON...NORTHWESTERN LAMAR...CENTRAL
JONES AND SOUTHERN JEFFERSON DAVIS COUNTIES...
At 424 PM CDT, severe thunderstorms were located along a line
extending from near Moss to near Morgantown, moving southeast at 45
mph.
HAZARD...70 mph wind gusts and nickel size hail.
SOURCE...Radar indicated.
IMPACT...Expect considerable tree damage. Damage is likely to mobile
homes, roofs, and outbuildings.
These severe storms will be near...
Sandersville around 430 PM CDT.
Other locations impacted by these severe thunderstorms include
Bassfield and Seminary.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
A Tornado Watch remains in effect until 1000 PM CDT for south
central, southeastern and east central Mississippi.
LAT...LON 3104 8983 3107 8984 3108 8992 3113 8994
3113 9001 3139 9004 3139 8996 3143 8996
3182 8913 3182 8894 3177 8894 3143 8936
3143 8945 3136 8945
TIME...MOT...LOC 2124Z 297DEG 37KT 3185 8909 3130 8986
HAIL...0.88IN
WIND...70MPH
$$
TW084
WWUS54 KJAN 042147
SVSJAN
Severe Weather Statement
National Weather Service Jackson MS
447 PM CDT Tue May 4 2021
MSC031-065-067-042157-
/O.CAN.KJAN.SV.W.0157.000000T0000Z-210504T2200Z/
Covington MS-Jones MS-Jefferson Davis MS-
447 PM CDT Tue May 4 2021
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN COVINGTON...
CENTRAL JONES AND SOUTHERN JEFFERSON DAVIS COUNTIES IS CANCELLED...
The storms which prompted the warning have moved out of the warned
area. Therefore, the warning has been cancelled.
A Tornado Watch remains in effect until 1000 PM CDT for south central
and southeastern Mississippi.
LAT...LON 3104 8983 3107 8984 3108 8992 3113 8994
3113 9001 3143 8966 3143 8945 3136 8945
TIME...MOT...LOC 2147Z 297DEG 37KT 3175 8887 3120 8964
$$
MSC073-091-042200-
/O.CON.KJAN.SV.W.0157.000000T0000Z-210504T2200Z/
Marion MS-Lamar MS-
447 PM CDT Tue May 4 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 500 PM CDT
FOR SOUTHEASTERN MARION AND NORTHWESTERN LAMAR COUNTIES...
At 447 PM CDT, severe thunderstorms were located along a line
extending from 6 miles northeast of Mill Creek to near Pinebur,
moving southeast at 45 mph.
HAZARD...70 mph wind gusts and nickel size hail.
SOURCE...Radar indicated.
IMPACT...Expect considerable tree damage. Damage is likely to mobile
homes, roofs, and outbuildings.
These severe thunderstorms will remain over mainly rural areas of
southeastern Marion and northwestern Lamar Counties.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
A Tornado Watch remains in effect until 1000 PM CDT for south central
and southeastern Mississippi.
LAT...LON 3104 8983 3107 8984 3108 8992 3113 8994
3113 9001 3143 8966 3143 8945 3136 8945
TIME...MOT...LOC 2147Z 297DEG 37KT 3175 8887 3120 8964
HAIL...0.88IN
WIND...70MPH
$$
TWThe office that day
Everything else NWS Jackson, MS issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 4, 3:50 AM CDT | Flash Flood Watch | JAN | Clarke, Copiah, Covington, Forrest, Franklin, Hinds and 13 more | 18 hr |
| May 4, 7:28 AM CDT | Special Weather Statement | JAN | Clay | 32 min |
| May 4, 7:58 AM CDT | Severe Thunderstorm Warning | JAN | Copiah, Hinds, Rankin, Simpson | 62 min |
| May 4, 8:19 AM CDT | Tornado Warning | JAN | Copiah, Rankin, Simpson | 56 min |
| May 4, 9:06 AM CDT | Tornado Warning | JAN | Rankin, Simpson | 54 min |
| May 4, 9:29 AM CDT | Special Weather Statement | JAN | Clay | 46 min |
| May 4, 9:48 AM CDT | Special Weather Statement | JAN | Grenada | 27 min |
| May 4, 9:49 AM CDT | Special Weather Statement | JAN | Scott | 26 min |
| May 4, 9:55 AM CDT | Special Weather Statement | JAN | Choctaw | 35 min |
| May 4, 10:02 AM CDT | Severe Thunderstorm Warning | JAN | Choctaw, Oktibbeha | 43 min |
| May 4, 10:11 AM CDT | Special Weather Statement | JAN | Lowndes | 34 min |
| May 4, 10:15 AM CDT | Flash Flood Warning | JAN | Clay, Webster | 2 hr |
| May 4, 10:59 AM CDT | Special Weather Statement | JAN | Clay | 31 min |
| May 4, 11:25 AM CDT | Special Weather Statement | JAN | Lowndes | 20 min |
| May 4, 12:01 PM CDT | Special Weather Statement | JAN | Madison | 44 min |
| May 4, 12:07 PM CDT | Severe Thunderstorm Warning | JAN | Madison, Rankin | 38 min |
| May 4, 12:18 PM CDT | Severe Thunderstorm Warning | JAN | Bolivar, Washington | 72 min |
| May 4, 12:30 PM CDT | Severe Thunderstorm Warning | JAN | Issaquena, Washington | 75 min |
| May 4, 12:40 PM CDT | Severe Thunderstorm Warning | JAN | Leake, Madison | 50 min |
| May 4, 12:42 PM CDT | Special Weather Statement | JAN | Copiah | 48 min |
| May 4, 12:43 PM CDT | Special Weather Statement | JAN | Madison | 47 min |
| May 4, 12:46 PM CDT | Severe Thunderstorm Warning | JAN | Madison, Yazoo | 44 min |
| May 4, 12:47 PM CDT | Severe Thunderstorm Warning | JAN | Copiah | 43 min |
| May 4, 12:57 PM CDT | Severe Thunderstorm Warning | JAN | Issaquena | 76 min |
| May 4, 1:10 PM CDT | Severe Thunderstorm Warning | JAN | Leake | 50 min |
| May 4, 1:16 PM CDT | Special Weather Statement | JAN | Grenada | 29 min |
| May 4, 1:19 PM CDT | Severe Thunderstorm Warning | JAN | Leflore, Sunflower | 59 min |
| May 4, 1:19 PM CDT | Severe Thunderstorm Warning | JAN | Rankin, Scott, Smith | 41 min |
| May 4, 1:22 PM CDT | Severe Thunderstorm Warning | JAN | Holmes, Humphreys, Issaquena, Sharkey, Washington, Yazoo | 71 min |
| May 4, 1:28 PM CDT | Special Weather Statement | JAN | Attala | 47 min |
| May 4, 1:31 PM CDT | Severe Thunderstorm Warning | JAN | Rankin, Simpson | 44 min |
| May 4, 1:37 PM CDT | Special Weather Statement | JAN | Carroll, Montgomery | 23 min |
| May 4, 1:37 PM CDT | Severe Thunderstorm Warning | JAN | Hinds, Issaquena, Warren, Yazoo | 53 min |
| May 4, 1:44 PM CDT | Severe Thunderstorm Warning | JAN | Carroll, Grenada, Montgomery | 75 min |
| May 4, 1:52 PM CDT | Tornado Warning | JAN | Rankin, Scott, Smith | 23 min |
| May 4, 1:57 PM CDT | Severe Thunderstorm Warning | JAN | Adams, Claiborne, Copiah, Franklin, Hinds, Jefferson and 1 more | 78 min |
| May 4, 2:00 PM CDT | Severe Thunderstorm Warning | JAN | Leake, Neshoba | 45 min |
| May 4, 2:09 PM CDT | Severe Thunderstorm Warning | JAN | Attala, Holmes, Leake, Madison, Rankin, Scott and 1 more | 66 min |
| May 4, 2:12 PM CDT | Severe Thunderstorm Warning | JAN | Copiah, Hinds, Madison, Rankin, Scott, Simpson and 1 more | 93 min |
| May 4, 2:12 PM CDT | Severe Thunderstorm Warning | JAN | Attala, Carroll, Choctaw, Holmes, Montgomery | 63 min |
| May 4, 2:18 PM CDT | Special Weather Statement | JAN | Clay | 27 min |
| May 4, 2:22 PM CDT | Tornado Warning | JAN | Attala, Holmes, Madison, Yazoo | 20 min |
| May 4, 2:29 PM CDT | Special Weather Statement | JAN | Winston | 46 min |
| May 4, 2:29 PM CDT | Severe Thunderstorm Warning | JAN | Webster | 61 min |
| May 4, 2:30 PM CDT | Severe Thunderstorm Warning | JAN | Webster | 60 min |
| May 4, 2:33 PM CDT | Severe Thunderstorm Warning | JAN | Winston | 42 min |
| May 4, 2:35 PM CDT | Tornado Warning | JAN | Hinds, Madison, Rankin | 25 min |
| May 4, 2:40 PM CDT | Severe Thunderstorm Warning | JAN | Copiah, Franklin, Jefferson Davis, Lawrence, Lincoln, Simpson | 80 min |
| May 4, 2:44 PM CDT | Severe Thunderstorm Warning | JAN | Newton, Scott, Smith | 46 min |
| May 4, 2:53 PM CDT | Tornado Warning | JAN | Rankin, Scott, Smith | 18 min |
| May 4, 3:02 PM CDT | Severe Thunderstorm Warning | JAN | Noxubee | 28 min |
| May 4, 3:03 PM CDT | Severe Thunderstorm Warning | JAN | Choctaw, Oktibbeha, Winston | 57 min |
| May 4, 3:08 PM CDT | Severe Thunderstorm Warning | JAN | Leake, Neshoba | 52 min |
| May 4, 3:09 PM CDT | Severe Thunderstorm Warning | JAN | Jasper, Smith | 51 min |
| May 4, 3:09 PM CDT | Severe Thunderstorm Warning | JAN | Jasper, Newton, Scott, Simpson, Smith | 81 min |
| May 4, 3:18 PM CDT | Severe Thunderstorm Warning | JAN | Kemper, Noxubee | 42 min |
| May 4, 3:20 PM CDT | Tornado Warning | JAN | Leake, Neshoba, Newton, Scott | 40 min |
| May 4, 3:32 PM CDT | Tornado Warning | JAN | Clarke, Jasper | 29 min |
| May 4, 3:36 PM CDT | Severe Thunderstorm Warning | JAN | Lauderdale | 54 min |
| May 4, 3:49 PM CDT | Severe Thunderstorm Warning | JAN | Lowndes, Noxubee | 29 min |
| May 4, 3:50 PM CDT | Severe Thunderstorm Warning | JAN | Clarke | 55 min |
| May 4, 3:51 PM CDT | Areal Flood Warning | JAN | Washington | 6 hr |
| May 4, 3:58 PM CDT | Severe Thunderstorm Warning | JAN | Kemper | 32 min |
| May 4, 4:26 PM CDT | Severe Thunderstorm Warning | JAN | Forrest, Jones, Lamar, Marion | 94 min |
Nearby
Severe Thunderstorm Warnings in Mississippi, 2021Every 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.