Flash Flood Warning 13, NWS Jackson, MS

637 
WGUS74 KJAN 291906
FFSJAN

Flash Flood Statement
National Weather Service Jackson MS
206 PM CDT Wed Apr 29 2026

MSC121-292045-
/O.CON.KJAN.FF.W.0013.000000T0000Z-260429T2045Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Rankin MS-
206 PM CDT Wed Apr 29 2026

...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 345 PM CDT THIS 
AFTERNOON FOR SOUTHERN RANKIN COUNTY...

At 206 PM CDT, Doppler radar indicated thunderstorms producing heavy 
rain across the warned area. Between 1 and 3 inches of rain have 
fallen. The expected rainfall rate is 0.5 to 1 inch in 1 hour. Flash 
flooding is ongoing or expected to begin shortly.

HAZARD...Flash flooding caused by thunderstorms.

SOURCE...Radar.

IMPACT...Flash flooding of small creeks and streams, urban areas,
         highways, streets and underpasses as well as other poor
         drainage and low-lying areas.

Some locations that will experience flash flooding include...
  Jackson, Florence, Johns and Monterey.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood 
deaths occur in vehicles.

&&

LAT...LON 3226 8974 3211 8974 3214 9016 3224 9009
      3223 8991

FLASH FLOOD...RADAR INDICATED
EXPECTED RAINFALL RATE...0.5-1 INCH IN 1 HOUR

$$

CME

Area Forecast Discussion...UPDATED
National Weather Service Jackson MS
1251 PM CDT Wed Apr 29 2026

...New AVIATION...

.KEY MESSAGES...

  - An active weather pattern will continue through Friday.
    Isolated severe storms and localized flooding will be possible
    again this afternoon into this evening.

  - Heavy rain and localized flooding will be a possibility again
    Friday into Friday evening.

  - Dry and cooler conditions will return this weekend.

&&

.DISCUSSION...
Issued at 101 AM CDT Wed Apr 29 2026

Near term: As multiple remnant mesoscale boundaries persist
across Arkansas through North and Northeast MS early this morning,
multiple rounds of convection have persisted into the overnight.
Even in areas where conditions have become more stable near the
surface due to repeated convection, moderate elevated instability
has lingered, resulting in a continued hail threat. Convection may
still be surface or near surface based in northwestern portions
of the areas, where SPC mesoanalysis depicts weak to moderate
mixed layer instability, thus a damaging wind and isolated tornado
threat persists as well early this morning. Tornado Watch 173
remains valid through 9Z for roughly the northern half of the
area. We have also had localized flash flooding from training
convection dating back to last night, particularly in typically
prone urban areas. A general weakening trend with a decrease in
convective coverage is expected through daybreak.

Heading through today, the cold front helping to force this
convection will finally begin to make southward progress into our
area. Ahead of the front, redevelopment/strengthening of
convection is expected later today, mainly into this afternoon and
early evening across northeast LA and central/south MS. Given
sufficient deep shear and somewhat steep mid level lapse rates,
damaging wind gusts and severe criteria hail will be possible.
There may even be sufficient low level shear to not be able to
rule out a tornado. Additionally, with the potential for training
and multiple rounds of storms again, localized flooding will be
possible across this area, and we'll highlight a limited flash
flood threat, where REFS mean QPF shows potential for pockets of
3-5" of rain.

Thursday and Friday: The cold front will shift into south MS and
south LA by early Thursday, stalling near the coast by late
Thursday. Continued upper disturbances during this time will
result in continuing waves of showers with perhaps a few storms,
with higher rain chances over the southern half of our forecast
area closer to the front.

By late Friday, a potent southern stream shortwave will likely
bring our next shot at heavier precip and potential for strong
convection. The major caveat with this activity will be the
stalled surface boundary and how far inland the developing surface
cyclone can force it. With little space between the departing
long wave trough and the incoming shortwave, the warm front will
be facing a tug-of-war scenario as continental dry air and a
surface high attempting to remain entrenched squares off against
the southerly mass recovery attempts of the incoming surface
cyclone/frontal wave. The demarcation between noisy and wet
weather versus strong to severe storms will likely be defined by
this progress an guidance differs greatly on how that may play
out. For now, the most likely scenario would be for some stronger
storm risk across the Hwy 98 corridor, with a heavy rain/localized
flooding threat possible even north of the front for areas south
of I-20 Friday into Friday evening.

Saturday through Tuesday: Surface ridging will build across the
Deep South resulting in dry and cooler conditions this weekend
into early next week. Sunday morning looks to be the coolest point
in this stretch, with temps expected to fall into the 40s
areawide, and lows in the 40s possible three days a row in some of
our cooler spots. Moisture will begin to recover again late
Monday into Tuesday, with potential for showers and thunderstorms
returning by the middle of next week. /DL/EC/

&&

.AVIATION...
(18Z TAFS)
Issued at 1243 PM CDT Wed Apr 29 2026

MVFR cigs wl gradually improve across the north but local radars
were lit up with numerous SHRA/TSRA developing across the cntrl
TAF sites. Numerous TSRA are expected this afternoon into this
evening, with +RA resulting in periodic categorical visibility
reductions. Some storms could become severe with 50kt wind gusts,
hail to around 1 inch in diameter, and a tornado cannot be ruled
out. This activity wl spread across the southern TAF sites before
decreasing tonight. MVFR cigs gradually lowering to IFR by 10Z are
expected cntrl and south. Conditions wl gradually improve and VFR
conditions wl prevail areawide by the end of the TAF period.
/22/DL/

&&

.PRELIMINARY POINT TEMPS/POPS...
Jackson       81  60  72  54 /  70  80  40  60
Meridian      84  58  74  52 /  60  80  40  40
Vicksburg     80  60  72  54 /  80  80  40  60
Hattiesburg   88  64  77  57 /  60  70  50  40
Natchez       84  62  74  56 /  80  80  60  60
Greenville    77  58  71  55 /  50  60  20  50
Greenwood     79  57  72  53 /  40  60  20  50

&&

.JAN WATCHES/WARNINGS/ADVISORIES...
MS...None.
LA...None.
AR...None.
&&

EC/DL/22

Preliminary Local Storm Report
National Weather Service Jackson MS
1049 AM CDT Wed Apr 29 2026

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1040 PM     Tstm Wnd Dmg     2 WNW Swiftown          33.32N 90.46W
04/28/2026                   Humphreys          MS   Emergency Mngr

            Trees down in the Four Mile community.

&&

CE

Preliminary Local Storm Report
National Weather Service Jackson MS
1057 AM CDT Wed Apr 29 2026

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1058 PM     Tstm Wnd Dmg     1 SSE Cruger            33.31N 90.23W
04/28/2026                   Holmes             MS   Utility Company

            Lines down S of Cruger.

&&

CE

Preliminary Local Storm Report
National Weather Service Jackson MS
1058 AM CDT Wed Apr 29 2026

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1045 PM     Tstm Wnd Dmg     Swiftown                33.31N 90.42W
04/28/2026                   Leflore            MS   Utility Company

            Lines down.

&&

CE

Preliminary Local Storm Report
National Weather Service Jackson MS
1109 AM CDT Wed Apr 29 2026

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1200 AM     Tstm Wnd Dmg     2 NNE New Hope          33.48N 88.31W
04/29/2026                   Lowndes            MS   Emergency Mngr

            Tree down on a home, minor damage.

&&

CE

Preliminary Local Storm Report
National Weather Service Jackson MS
1115 AM CDT Wed Apr 29 2026

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1020 PM     Lightning        4 N Bigbee Valley       33.31N 88.34W
04/28/2026                   Lowndes            MS   Emergency Mngr

            Camper struck by lightning and burned up.
            Along Plum Nellie road.

&&

CE

Special Weather Statement
National Weather Service Jackson MS
1237 PM CDT Wed Apr 29 2026

MSZ048>050-056-291830-
Scott MS-Smith MS-Hinds MS-Rankin MS-
1237 PM CDT Wed Apr 29 2026

...A STRONG THUNDERSTORM WILL IMPACT SOUTHERN RANKIN...NORTHWESTERN
SMITH...SOUTHWESTERN SCOTT AND SOUTHEASTERN HINDS COUNTIES THROUGH
130 PM CDT...

At 1237 PM CDT, Doppler radar was tracking a strong thunderstorm near
Brandon, moving east at 30 mph.

HAZARD...Wind gusts up to 40 mph and pea 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 and Brandon around 1245 PM CDT.
  Pelahatchie around 1250 PM CDT.
  Polkville around 105 PM CDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

High winds can bring down trees and large limbs resulting in serious
injury or property damage. Exercise extreme caution when outdoors
during such strong winds...and be especially aware of older trees.

Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

This storm may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.

&&

LAT...LON 3211 9026 3230 9024 3243 8972 3215 8965
TIME...MOT...LOC 1737Z 256DEG 27KT 3223 9004

MAX HAIL SIZE...0.25 IN
MAX WIND GUST...40 MPH

DC