Alert archive / Mississippi / Severe Thunderstorm Warnings in 2026

Severe Thunderstorm Warning 367, NWS Jackson, MS

September 3, 2026Rankin County, Simpson County, Mississippi

NWS Jackson, MS issued this severe thunderstorm warning at Sep 3, 2026, 3:33 PM CDT for Rankin County, Simpson County, Mississippi. It was in force for 42 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
Sep 3, 2026, 3:33 PM CDT (20:33 UTC)
Expired
Sep 3, 2026, 4:15 PM CDT
In force
42 min
Issued by
NWS Jackson, MS
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Rankin County, MS, Simpson County, MS

The radar

The Jackson/Brandon,MS radar (KDGX), 33 km from the middle of the area, began a volume at 20:36 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

TimeReportWhereRemark
Sep 3, 3:55 PM CDTTSTM WND DMG1 Nnw Braxton, MSA tree fell on powerlines off MS Hwy 149.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

Did it verify

Verified. The Iowa Environmental Mesonet's Cow matched one storm report to this severe thunderstorm warning; the first came 22 minutes after it went out.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The nearest sounding before it

Jackson, MS (KJAN), launched 12:00Z, 8.6 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-pSkew-T log-p diagram, Jackson, MS at 12:00Z on 2026-09-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1622 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Jackson, MS at 12:00Z on 2026-09-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 17 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
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
1622 J/kg
Mixed-layer CIN
-60 J/kg
Mixed-layer LCL
1015 m above ground
0-6 km bulk shear
14 kt
0-1 km storm-relative helicity
17 m²/s²
0-3 km storm-relative helicity
30 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

658 
WUUS54 KJAN 032033
SVRJAN
MSC121-127-032115-
/O.NEW.KJAN.SV.W.0367.260903T2033Z-260903T2115Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Jackson MS
333 PM CDT Thu Sep 3 2026

The National Weather Service in Jackson has issued a

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

* Until 415 PM CDT.

* At 332 PM CDT, a severe thunderstorm was located over Star, or near
  Florence, moving west at 15 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...
  Jackson, Florence, Whites, and Harrisville around 340 PM CDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3194 9018 3194 9020 3195 9019 3199 9021
      3201 9023 3202 9022 3203 9025 3204 9023
      3209 9023 3209 9025 3210 9024 3211 9025
      3215 9024 3215 9025 3217 9024 3220 9002
      3200 8988 3192 9017
TIME...MOT...LOC 2032Z 072DEG 14KT 3209 9008 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

DB
1 follow-up statement
739 
WWUS54 KJAN 032056
SVSJAN

Severe Weather Statement
National Weather Service Jackson MS
356 PM CDT Thu Sep 3 2026

MSC121-127-032115-
/O.CON.KJAN.SV.W.0367.000000T0000Z-260903T2115Z/
Rankin MS-Simpson MS-
356 PM CDT Thu Sep 3 2026

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 415 PM CDT
FOR SOUTHWESTERN RANKIN AND NORTHWESTERN SIMPSON COUNTIES...

At 355 PM CDT, a severe thunderstorm was located over Braxton, or 7
miles northwest of Mendenhall, moving west at 10 mph.

HAZARD...Ping pong ball size hail and 60 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...People and animals outdoors will be injured. Expect hail 
         damage to roofs, siding, windows, and vehicles. Expect wind 
         damage to roofs, siding, and trees.

This severe storm will be near...
  Harrisville, Star, and Piney Woods around 400 PM CDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3194 9018 3194 9020 3195 9019 3199 9021
      3201 9023 3202 9022 3203 9025 3204 9023
      3209 9023 3209 9025 3210 9024 3211 9025
      3215 9024 3215 9025 3217 9024 3220 9002
      3200 8988 3192 9017
TIME...MOT...LOC 2055Z 080DEG 7KT 3201 8998 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.50 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

DB

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Jackson, MS wrote its last area forecast discussion before this severe thunderstorm warning went out at Sep 3, 1:52 PM CDT, 1 hour 41 minutes earlier. Its key messages:

  • Dangerous heat stress will persist across the forecast area into next week.
  • Rain chances begin increasing areawide today, with chances continuing each afternoon through early next week.
Area forecast discussion, Sep 3, 1:52 PM CDT, 1 hour 41 minutes before
Area Forecast Discussion
National Weather Service Jackson MS
152 PM CDT Thu Sep 3 2026

...New DISCUSSION...

.KEY MESSAGES...

- Dangerous heat stress will persist across the forecast area into
  next week.

- Rain chances begin increasing areawide today, with chances
  continuing each afternoon through early next week.

&&

.DISCUSSION...
Issued at 152 PM CDT Thu Sep 3 2026

This afternoon through next Thursday...

Heat will continue to be a main concern this afternoon as near-term
guidance shows upper-level ridging across the Mid-South. Afternoon
highs will peak in the mid to upper 90s. This, combined with
dewpoints in the low to mid 70s, will allow for heat index reading
values up to 110 degrees across our entire forecast area. At this
moment, no changes have been made to the heat graphic for today and
a "Elevated" risk for dangerous heat will continue to be advertised
across our entire CWA. Likewise, a Heat Advisory remains in effect
for from noon today to 7 pm later this evening.

Closer to the Gulf Coast, we will begin to see an increase in rain
coverage later this afternoon from the south to the north thanks to
an easterly wave bringing in a surge of deeper moisture and eroding
the edge of the ridge. A few strong scattered storms cannot be ruled
out. Rain chances will start to decrease later this evening with a
few lingering showers possible across portions of southwest MS and
portions of northeast LA. Nighttime lows will fall into the low 70s
areawide.

The forecast messaging for the long term period remains the same
with no major changes made. Upper level ridging will continue to
dominate the regional weather, though will shift from the Mid-South
to the High Plains and then back again over the next several days.
Limited to elevated heat stress will be the primary focus for the
long term as heat index values are forecasted to peak in the 105-110
degree range across much of the area through the Labor Day Weekend.
Late afternoon/early evening showers and storms should help keep
parts of our CWA under Heat Advisory criteria. With the deep
tropical moisture in place, some of these storms will have the
capability to produce locally heavy downpours at times. Regardless,
an areawide Heat Advisory has been issued for Friday. As we go
beyond Friday, additional heat advisories will eventually be needed
for Saturday and Sunday. Heat trends will continue to be monitored
as we go through the weekend.

Dangerous heat will continue to persist across the area as we head
into the new work week. Additional heat headlines/advisories will
eventually be needed as we get closer. Heat trends will begin to
decrease across parts of the area by the mid week as global guidance
shows a frontal boundary pushing south across the area. Rain chances
will be possible mainly for areas along and south of I-20 heading
into Thursday. /CR/

&&

.AVIATION...
(18Z TAFS)
Issued at 1250 PM CDT Thu Sep 3 2026

Current radar scans show a few scattered showers and storms across
portions of south MS. All TAF sites are currently reporting VFR
conditions. Chances for thunderstorms will be mainly along and
north of I-20 later this afternoon, so included PROB30 at all TAF
sites. Any storms across the area will diminish around 0z as the sun
sets. VFR ceilings will prevail across all sites through 06Z
Friday. /CR/

&&

.PRELIMINARY POINT TEMPS/POPS...
Jackson       73  95  73  94 /  10  30  20  50
Meridian      74  97  73  95 /   0  20  10  50
Vicksburg     73  94  72  93 /   0  20  30  30
Hattiesburg   74  94  73  93 /  10  60  20  80
Natchez       73  94  72  92 /  10  50  30  60
Greenville    75  97  75  98 /   0  30  10  20
Greenwood     73  97  73  97 /   0  10  10  20

&&

.JAN WATCHES/WARNINGS/ADVISORIES...
MS...Heat Advisory until 7 PM CDT this evening for MSZ018-019-025>066-
     072>074.

     Heat Advisory from noon to 7 PM CDT Friday for MSZ018-019-
     025>066-072>074.

LA...Heat Advisory until 7 PM CDT this evening for LAZ007>009-015-016-
     023>026.

     Heat Advisory from noon to 7 PM CDT Friday for LAZ007>009-015-
     016-023>026.

AR...Heat Advisory until 7 PM CDT this evening for ARZ074-075.

     Heat Advisory from noon to 7 PM CDT Friday for ARZ074-075.

&&

CR/CR/CR

In the hours before

Special weather statement, Sep 3, 2:51 PM CDT, 42 minutes before
Special Weather Statement
National Weather Service Jackson MS
251 PM CDT Thu Sep 3 2026

MSZ049-050-056-032015-
Scott MS-Smith MS-Rankin MS-
251 PM CDT Thu Sep 3 2026

...A STRONG THUNDERSTORM WILL IMPACT EAST CENTRAL RANKIN...
NORTHWESTERN SMITH AND SOUTHERN SCOTT COUNTIES THROUGH 315 PM CDT...

At 251 PM CDT, Doppler radar was tracking a strong thunderstorm over
Morton, moving west at 20 mph.

HAZARD...Wind gusts up to 40 mph and half inch hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor hail damage to vegetation is
         possible.

This strong thunderstorm will be near...
  Morton and Branch around 255 PM CDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 3238 8941 3216 8948 3219 8984 3249 8977
TIME...MOT...LOC 1951Z 099DEG 17KT 3232 8964

MAX HAIL SIZE...0.50 IN
MAX WIND GUST...40 MPH

CR
Special weather statement, Sep 3, 3:30 PM CDT, 3 minutes before
Special Weather Statement
National Weather Service Jackson MS
330 PM CDT Thu Sep 3 2026

MSZ049-055-056-032130-
Smith MS-Rankin MS-Simpson MS-
330 PM CDT Thu Sep 3 2026

...A STRONG THUNDERSTORM WILL IMPACT SOUTHERN RANKIN...SIMPSON AND
SOUTHWESTERN SMITH COUNTIES THROUGH 430 PM CDT...

At 329 PM CDT, Doppler radar was tracking a strong thunderstorm over
Star, or near Florence, moving west at 15 mph.

HAZARD...Wind gusts up to 50 mph and nickel size hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor hail damage to vegetation is
         possible.

This strong thunderstorm will be near...
  Jackson, Florence, Whites, and Harrisville around 335 PM CDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 3201 9023 3202 9022 3202 9023 3203 9025
      3204 9023 3209 9023 3209 9025 3210 9024
      3211 9025 3214 9024 3215 9025 3219 9000
      3190 8941 3178 8965 3177 8985
TIME...MOT...LOC 2029Z 072DEG 14KT 3209 9006

MAX HAIL SIZE...0.88 IN
MAX WIND GUST...50 MPH

DB

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 3, 12:38 PM CDTHeat AdvisoryJANAdams, Attala, Bolivar, Carroll, Choctaw, Claiborne and 41 more30 hr
Sep 3, 2:51 PM CDTSpecial Weather StatementJANScott24 min
Sep 3, 3:30 PM CDTSpecial Weather StatementJANSimpson60 min
Sep 3, 3:37 PM CDTSpecial Weather StatementJANMadison53 min
Sep 3, 3:54 PM CDTSpecial Weather StatementJANLamar, Marion66 min
Sep 3, 4:55 PM CDTSpecial Weather StatementJANJefferson35 min
Sep 3, 5:08 PM CDTSpecial Weather StatementJANMarion67 min
Sep 3, 6:01 PM CDTSpecial Weather StatementJANIssaquena, Sharkey59 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.