Alert archive / Mississippi / Severe Thunderstorm Warnings in 2026
Severe Thunderstorm Warning 310, NWS Jackson, MS
NWS Jackson, MS issued this severe thunderstorm warning at Aug 20, 2026, 8:15 PM CDT for 4 counties in Mississippi. It was in force for 60 min. 4 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
- Aug 20, 2026, 8:15 PM CDT (01:15 UTC)
- Expired
- Aug 20, 2026, 9:15 PM CDT
- In force
- 60 min
- Issued by
- NWS Jackson, MS
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Rankin County, MS, Scott County, MS, Simpson County, MS, Smith County, MS
The radar
The Jackson/Brandon,MS radar (KDGX), 42 km from the middle of the area, began a volume at 01:15 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 |
|---|---|---|---|
| Aug 20, 8:20 PM CDT | TSTM WND DMG | 1 N Mendenhall, MS | Tree and line down. |
| Aug 20, 8:30 PM CDT | TSTM WND DMG | 4 Ssw Mize, MS | A few trees down along cr 20. |
| Aug 20, 8:39 PM CDT | TSTM WND DMG | Shady Grove, MS | A couple trees down on the W side of the county. |
| Aug 20, 8:47 PM CDT | TSTM WND DMG | 3 E Zion Hill, MS | Couple trees down. |
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 |
|---|---|---|---|
| Aug 20, 5:08 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Jackson, MS (KJAN), launched 00:00Z, 1.3 hours before the alert went out and 52 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
- 1618 J/kg
- Mixed-layer CIN
- -9 J/kg
- Mixed-layer LCL
- 2146 m above ground
- 0-6 km bulk shear
- 14 kt
- 0-1 km storm-relative helicity
- -18 m²/s²
- 0-3 km storm-relative helicity
- 7 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
584
WUUS54 KJAN 210115
SVRJAN
MSC121-123-127-129-210215-
/O.NEW.KJAN.SV.W.0310.260821T0115Z-260821T0215Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Jackson MS
815 PM CDT Thu Aug 20 2026
The National Weather Service in Jackson has issued a
* Severe Thunderstorm Warning for...
Southeastern Rankin County in central Mississippi...
Simpson County in central Mississippi...
Northwestern Smith County in central Mississippi...
Southern Scott County in central Mississippi...
* Until 915 PM CDT.
* At 815 PM CDT, a severe thunderstorm was located over Taylorsville,
or 11 miles southwest of Bay Springs, moving northwest 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...
Mize around 820 PM CDT.
Martinville around 900 PM CDT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3208 8936 3205 8959 3179 8953 3177 9003
3225 8993 3247 8946
TIME...MOT...LOC 0115Z 130DEG 17KT 3187 8943
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
SASThe office that day
Everything else NWS Jackson, MS issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 20, 7:04 PM CDT | Special Weather Statement | JAN | Attala, Leake | 56 min |
| Aug 20, 7:07 PM CDT | Severe Thunderstorm Warning | JAN | Attala, Carroll, Choctaw, Holmes, Leake, Montgomery and 1 more | 68 min |
| Aug 20, 7:08 PM CDT | Severe Thunderstorm Warning | JAN | Franklin, Jefferson Davis, Lamar, Lawrence, Lincoln, Marion | 67 min |
| Aug 20, 7:11 PM CDT | Special Weather Statement | JAN | Clarke | 64 min |
| Aug 20, 7:26 PM CDT | Severe Thunderstorm Warning | JAN | Rankin, Simpson | 52 min |
| Aug 20, 7:32 PM CDT | Severe Thunderstorm Warning | JAN | Clarke, Covington, Jasper, Jones, Smith | 58 min |
| Aug 20, 7:36 PM CDT | Severe Thunderstorm Warning | JAN | Carroll, Choctaw, Grenada, Montgomery, Webster | 54 min |
| Aug 20, 7:44 PM CDT | Severe Thunderstorm Warning | JAN | Copiah, Lincoln | 61 min |
| Aug 20, 7:48 PM CDT | Severe Thunderstorm Warning | JAN | Clarke, Jasper, Lauderdale, Newton, Scott, Smith | 57 min |
| Aug 20, 8:05 PM CDT | Severe Thunderstorm Warning | JAN | Attala, Carroll, Choctaw, Holmes, Leake, Montgomery and 2 more | 55 min |
| Aug 20, 8:22 PM CDT | Flash Flood Warning | JAN | Choctaw, Montgomery, Webster | 2 hr |
| Aug 20, 8:23 PM CDT | Severe Thunderstorm Warning | JAN | Carroll, Choctaw, Montgomery, Webster | 52 min |
| Aug 20, 8:26 PM CDT | Severe Thunderstorm Warning | JAN | Covington, Jasper, Jones, Smith | 64 min |
| Aug 20, 8:36 PM CDT | Severe Thunderstorm Warning | JAN | Jasper, Newton, Scott, Smith | 54 min |
| Aug 20, 8:38 PM CDT | Special Weather Statement | JAN | Marion | 67 min |
| Aug 20, 8:46 PM CDT | Severe Thunderstorm Warning | JAN | Kemper, Lauderdale, Leake, Neshoba, Newton, Scott and 1 more | 59 min |
| Aug 20, 8:47 PM CDT | Special Weather Statement | JAN | Lawrence, Lincoln | 58 min |
| Aug 20, 8:49 PM CDT | Severe Thunderstorm Warning | JAN | Attala, Carroll, Choctaw, Holmes, Leake, Madison and 4 more | 56 min |
| Aug 20, 9:00 PM CDT | Special Weather Statement | JAN | Madison | 60 min |
| Aug 20, 9:08 PM CDT | Severe Thunderstorm Warning | JAN | Covington, Jefferson Davis, Lawrence, Rankin, Scott, Simpson and 1 more | 67 min |
| Aug 20, 9:20 PM CDT | Severe Thunderstorm Warning | JAN | Leake, Madison, Rankin, Scott | 55 min |
| Aug 20, 9:36 PM CDT | Special Weather Statement | JAN | Attala, Choctaw, Holmes, Winston | 54 min |
| Aug 20, 9:38 PM CDT | Severe Thunderstorm Warning | JAN | Kemper, Lauderdale, Leake, Neshoba, Newton, Scott | 82 min |
| Aug 20, 9:42 PM CDT | Severe Thunderstorm Warning | JAN | Carroll, Holmes, Madison, Yazoo | 63 min |
| Aug 20, 10:12 PM CDT | Severe Thunderstorm Warning | JAN | Hinds, Leake, Madison, Rankin, Scott, Smith | 78 min |
| Aug 20, 10:38 PM CDT | Severe Thunderstorm Warning | JAN | Hinds, Madison, Yazoo | 82 min |
| Aug 20, 11:08 PM CDT | Special Weather Statement | JAN | Newton, Rankin, Scott | 67 min |
| Aug 20, 11:09 PM CDT | Special Weather Statement | JAN | Bolivar, Washington | 66 min |
| Aug 20, 11:25 PM CDT | Special Weather Statement | JAN | Madison, Rankin | 65 min |
| Aug 21, 12:27 AM CDT | Special Weather Statement | JAN | Humphreys, Issaquena, Sharkey, Washington | 63 min |
| Aug 21, 2:06 AM CDT | Special Weather Statement | JAN | Webster | 69 min |
| Aug 21, 3:08 AM CDT | Severe Thunderstorm Warning | JAN | Clay, Lowndes, Oktibbeha | 67 min |
| Aug 21, 4:08 AM CDT | Special Weather Statement | JAN | Lowndes | 37 min |
| Aug 21, 4:24 AM CDT | Severe Thunderstorm Warning | JAN | Kemper | 36 min |
| Aug 21, 12:58 PM CDT | Heat Advisory | JAN | Adams, Bolivar, Claiborne, Copiah, Franklin, Hinds and 17 more | 31 hr |
| Aug 21, 1:49 PM CDT | Special Weather Statement | JAN | Jefferson Davis | 26 min |
| Aug 21, 2:00 PM CDT | Severe Thunderstorm Warning | JAN | Covington, Jefferson Davis | 60 min |
| Aug 21, 2:32 PM CDT | Severe Thunderstorm Warning | JAN | Adams | 58 min |
| Aug 21, 2:38 PM CDT | Severe Thunderstorm Warning | JAN | Warren | 52 min |
| Aug 21, 2:38 PM CDT | Severe Thunderstorm Warning | JAN | Claiborne, Jefferson | 52 min |
| Aug 21, 2:46 PM CDT | Severe Thunderstorm Warning | JAN | Covington, Jefferson Davis, Lamar, Marion | 59 min |
| Aug 21, 2:49 PM CDT | Severe Thunderstorm Warning | JAN | Covington, Jefferson Davis, Simpson, Smith | 56 min |
| Aug 21, 2:58 PM CDT | Severe Thunderstorm Warning | JAN | Hinds | 62 min |
| Aug 21, 3:02 PM CDT | Severe Thunderstorm Warning | JAN | Lawrence, Lincoln, Marion | 58 min |
| Aug 21, 3:07 PM CDT | Severe Thunderstorm Warning | JAN | Covington, Forrest, Jones | 53 min |
| Aug 21, 3:16 PM CDT | Severe Thunderstorm Warning | JAN | Claiborne, Copiah, Hinds, Warren | 59 min |
| Aug 21, 3:24 PM CDT | Severe Thunderstorm Warning | JAN | Adams | 51 min |
| Aug 21, 3:29 PM CDT | Severe Thunderstorm Warning | JAN | Covington, Jones | 61 min |
| Aug 21, 3:31 PM CDT | Severe Thunderstorm Warning | JAN | Warren | 44 min |
| Aug 21, 3:34 PM CDT | Special Weather Statement | JAN | Simpson | 56 min |
| Aug 21, 3:36 PM CDT | Severe Thunderstorm Warning | JAN | Jasper, Smith | 54 min |
| Aug 21, 3:39 PM CDT | Severe Thunderstorm Warning | JAN | Copiah, Hinds, Rankin, Simpson | 66 min |
| Aug 21, 3:44 PM CDT | Severe Thunderstorm Warning | JAN | Forrest, Lamar, Marion | 72 min |
| Aug 21, 3:51 PM CDT | Severe Thunderstorm Warning | JAN | Jefferson Davis, Lawrence, Lincoln, Simpson | 54 min |
| Aug 21, 3:59 PM CDT | Severe Thunderstorm Warning | JAN | Lawrence, Marion | 61 min |
| Aug 21, 4:04 PM CDT | Severe Thunderstorm Warning | JAN | Adams, Claiborne, Jefferson | 56 min |
| Aug 21, 4:10 PM CDT | Severe Thunderstorm Warning | JAN | Claiborne, Copiah, Jefferson, Warren | 50 min |
| Aug 21, 4:12 PM CDT | Severe Thunderstorm Warning | JAN | Covington, Jefferson Davis, Simpson, Smith | 63 min |
| Aug 21, 4:14 PM CDT | Severe Thunderstorm Warning | JAN | Adams, Copiah, Franklin, Jefferson, Lincoln | 61 min |
| Aug 21, 4:26 PM CDT | Special Weather Statement | JAN | Newton | 64 min |
| Aug 21, 4:26 PM CDT | Special Weather Statement | JAN | Kemper | 64 min |
| Aug 21, 4:33 PM CDT | Severe Thunderstorm Warning | JAN | Rankin, Scott, Smith | 42 min |
| Aug 21, 4:35 PM CDT | Severe Thunderstorm Warning | JAN | Copiah, Jefferson Davis, Lawrence, Lincoln, Marion | 40 min |
| Aug 21, 4:43 PM CDT | Severe Thunderstorm Warning | JAN | Smith | 29 min |
| Aug 21, 4:57 PM CDT | Severe Thunderstorm Warning | JAN | Forrest | 48 min |
| Aug 21, 5:06 PM CDT | Flash Flood Warning | JAN | Simpson | 73 min |
| Aug 21, 5:13 PM CDT | Severe Thunderstorm Warning | JAN | Adams, Franklin, Jefferson, Lawrence, Lincoln, Marion | 46 min |
| Aug 21, 5:33 PM CDT | Special Weather Statement | JAN | Jasper | 42 min |
Nearby
Severe Thunderstorm Warnings in Mississippi, 2026Every severe thunderstorm warning in 2026
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.