Alert archive / Mississippi / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 140, NWS Jackson, MS
NWS Jackson, MS issued this severe thunderstorm warning at May 4, 2021, 1:57 PM CDT for 7 counties in Mississippi; Tensas Parish, Louisiana. It was in force for 78 min. 7 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, 1:57 PM CDT (18:57 UTC)
- Expired
- May 4, 2021, 3:15 PM CDT
- In force
- 78 min
- Issued by
- NWS Jackson, MS
- Area
- Storm-based polygon
- Hail
- 0.88 in
- Wind
- 70.0 mph
Counties Tensas Parish, LA, Adams County, MS, Claiborne County, MS, Copiah County, MS, Franklin County, MS, Hinds County, MS, Jefferson County, MS, Warren County, MS
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| May 4, 2:20 PM CDT | TSTM WND DMG | 1 Sse Vidalia, LA | TREE DOWN ON HWY 131. |
| May 4, 2:23 PM CDT | TSTM WND DMG | 1 Nne Sibley, MS | SEVERAL TREES AND LINES DOWN IN THE SIBLEY AREA. |
| May 4, 2:23 PM CDT | TSTM WND DMG | 3 Sw Rocky Springs, MS | MULTIPLE TREES DOWN AND SOME LINES, SOME ROADS BLOCKED BY TREES. |
| May 4, 2:25 PM CDT | TSTM WND DMG | 1 N Pine Ridge, MS | A FEW TREES DOWN. |
| May 4, 2:26 PM CDT | TSTM WND DMG | Port Gibson, MS | WIDESPREAD DOWNED TREES AND LINES, MOST OF THE COUNTY IS OUT OF POWER. SEVERAL ROADS BLOCKED BY TREES. |
| May 4, 2:30 PM CDT | TSTM WND DMG | 3 N Kingston, MS | SCATTERED TREES AND LINES DOWN. |
| May 4, 2:38 PM CDT | TSTM WND DMG | 5 E Pattison, MS | SEVERAL TREES DOWN AND LINES, SOME ROADS BLOCKED BY TREES. |
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, 10:52 AM CDT | Tornado Watch | SPC | 7 hr |
The nearest sounding before it
Jackson, MS (KJAN), launched 12:00Z, 7.0 hours before the alert went out and 149 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.
081
WUUS54 KJAN 041857
SVRJAN
LAC107-MSC001-021-029-037-049-063-149-042015-
/O.NEW.KJAN.SV.W.0140.210504T1857Z-210504T2015Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Jackson MS
157 PM CDT Tue May 4 2021
The National Weather Service in Jackson has issued a
* Severe Thunderstorm Warning for...
Central Tensas Parish in northeastern Louisiana...
Southwestern Warren County in west central Mississippi...
Claiborne County in southwestern Mississippi...
Jefferson County in southwestern Mississippi...
Franklin County in southwestern Mississippi...
Adams County in southwestern Mississippi...
Southwestern Hinds County in central Mississippi...
Northwestern Copiah County in central Mississippi...
* Until 315 PM CDT.
* At 157 PM CDT, severe thunderstorms were located along a line
extending from near Somerset to 6 miles northwest of Black Hawk,
moving east 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.
* Severe thunderstorms will be near...
Newellton and Somerset around 205 PM CDT.
Yokena around 225 PM CDT.
Rocky Springs around 235 PM CDT.
Reganton around 240 PM CDT.
Utica around 250 PM CDT.
Other locations impacted by these severe thunderstorms include Roxie
and Meadville.
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 400 PM CDT for central
Mississippi. A Tornado Watch also remains in effect until 600 PM CDT
for northeastern Louisiana...and southwestern and west central
Mississippi.
LAT...LON 3123 9164 3124 9165 3128 9151 3143 9155
3137 9151 3137 9147 3139 9146 3152 9152
3159 9140 3162 9152 3163 9140 3220 9134
3225 9113 3220 9115 3221 9057 3135 9086
3132 9112 3137 9126 3132 9147 3123 9149
TIME...MOT...LOC 1857Z 266DEG 41KT 3217 9133 3121 9172
HAIL...0.88IN
WIND...70MPH
$$
TW2 follow-up statements
761
WWUS54 KJAN 041918 RRB
SVSJAN
Severe Weather Statement
National Weather Service Jackson MS
218 PM CDT Tue May 4 2021
LAC107-MSC001-021-029-037-049-063-149-042015-
/O.CON.KJAN.SV.W.0140.000000T0000Z-210504T2015Z/
Tensas LA-Warren MS-Claiborne MS-Jefferson MS-Franklin MS-Adams MS-
Hinds MS-Copiah MS-
218 PM CDT Tue May 4 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 315 PM CDT
FOR SOUTHEASTERN TENSAS PARISH...SOUTHWESTERN WARREN...CLAIBORNE...
JEFFERSON...FRANKLIN...ADAMS...SOUTHWESTERN HINDS AND NORTHWESTERN
COPIAH COUNTIES...
At 218 PM CDT, severe thunderstorms were located along a line
extending from 7 miles west of Yokena to 7 miles southwest of
Dolorosa, moving east at 45 mph.
HAZARD...70 mph wind gusts and nickel size hail.
SOURCE...Radar indicated.
IMPACT...Expect considerable tree damage. Damage is likely to mobile
homes, roofs, and outbuildings.
These severe storms will be near...
Yokena around 230 PM CDT.
Rocky Springs around 235 PM CDT.
Reganton around 240 PM CDT.
Utica around 250 PM CDT.
Other locations impacted by these severe thunderstorms include Roxie
and Meadville.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
A Tornado Watch remains in effect until 400 PM CDT for central
Mississippi. A Tornado Watch also remains in effect until 600 PM CDT
for northeastern Louisiana...and southwestern and west central
Mississippi.
LAT...LON 3124 9165 3129 9151 3143 9155 3137 9151
3136 9150 3140 9146 3152 9152 3154 9144
3160 9141 3162 9152 3161 9141 3169 9140
3176 9126 3176 9136 3213 9101 3220 9106
3221 9057 3135 9086 3137 9127 3123 9164
TIME...MOT...LOC 1918Z 266DEG 41KT 3219 9106 3123 9146
HAIL...0.88IN
WIND...70MPH
$$
TW190
WWUS54 KJAN 041957
SVSJAN
Severe Weather Statement
National Weather Service Jackson MS
257 PM CDT Tue May 4 2021
LAC107-MSC001-149-042007-
/O.CAN.KJAN.SV.W.0140.000000T0000Z-210504T2015Z/
Tensas LA-Warren MS-Adams MS-
257 PM CDT Tue May 4 2021
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN TENSAS PARISH...
SOUTHWESTERN WARREN AND ADAMS 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 400 PM CDT for central
Mississippi. A Tornado Watch also remains in effect until 600 PM CDT
for southwestern Mississippi.
LAT...LON 3136 9115 3151 9116 3168 9102 3208 9081
3220 9073 3221 9057 3135 9086
TIME...MOT...LOC 1957Z 266DEG 41KT 3222 9057 3126 9097
$$
MSC021-029-037-049-063-042015-
/O.CON.KJAN.SV.W.0140.000000T0000Z-210504T2015Z/
Claiborne MS-Jefferson MS-Franklin MS-Hinds MS-Copiah MS-
257 PM CDT Tue May 4 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 315 PM CDT
FOR SOUTHEASTERN CLAIBORNE...EASTERN JEFFERSON...WESTERN FRANKLIN...
SOUTHWESTERN HINDS AND NORTHWESTERN COPIAH COUNTIES...
At 257 PM CDT, severe thunderstorms were located along a line
extending from 7 miles east of Newman to near Gloster, moving east at
45 mph.
HAZARD...70 mph wind gusts and nickel size hail.
SOURCE...Radar indicated.
IMPACT...Expect considerable tree damage. Damage is likely to mobile
homes, roofs, and outbuildings.
These severe thunderstorms will remain over mainly rural areas of
southeastern Claiborne, eastern Jefferson, western Franklin,
southwestern Hinds and northwestern Copiah Counties, including the
following locations... Roxie and Meadville.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
A Tornado Watch remains in effect until 400 PM CDT for central
Mississippi. A Tornado Watch also remains in effect until 600 PM CDT
for southwestern Mississippi.
LAT...LON 3136 9115 3151 9116 3168 9102 3208 9081
3220 9073 3221 9057 3135 9086
TIME...MOT...LOC 1957Z 266DEG 41KT 3222 9057 3126 9097
HAIL...0.88IN
WIND...70MPH
$$
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, 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, 3:38 PM CDT | Severe Thunderstorm Warning | JAN | Covington, Jefferson Davis, Jones, Lamar, Lawrence, Lincoln and 1 more | 82 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 |
| May 4, 11:57 AM CDT | Severe Thunderstorm Warning | JAN | Morehouse | 78 min |
| May 4, 12:37 PM CDT | Flash Flood Warning | JAN | Morehouse, West Carroll | 3 hr |
| May 4, 1:15 PM CDT | Severe Thunderstorm Warning | JAN | Catahoula, Concordia, Franklin, Tensas | 75 min |
Nearby
Severe Thunderstorm Warnings in Mississippi, 2021Severe Thunderstorm Warnings in Louisiana, 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.