Alert archive / Mississippi / Flash Flood Warnings in 2026

Flash Flood Warning 4, NWS Jackson, MS

January 9, 2026Jefferson Davis County, Lamar County, Marion County, Mississippi

NWS Jackson, MS issued this flash flood warning at Jan 9, 2026, 8:17 PM CST for Jefferson Davis County, Lamar County, Marion County, Mississippi. It was in force for 97 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Jan 9, 2026, 8:17 PM CST (02:17 UTC)
Expired: Jan 9, 2026, 9:54 PM CST
In force: 97 min
Issued by: NWS Jackson, MS
Area: Storm-based polygon
Flood severity: None

Counties Jefferson Davis County, MS, Lamar County, MS, Marion County, MS

The radar

The Hammond radar (KHDC), 105 km from the middle of the area, began a volume at 02:18 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.

Did it verify

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this flash flood warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

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 00:00Z, 2.3 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 173 J/kg
Mixed-layer CIN: -100 J/kg
Mixed-layer LCL: 763 m above ground
0-6 km bulk shear: 72 kt
0-1 km storm-relative helicity: -47 m²/s²
0-3 km storm-relative helicity: 69 m²/s²
Significant tornado parameter: -0.0
Supercell composite: -0.1

Open this sounding in Storm Lab

The text

As transmitted.

821 
WGUS54 KJAN 100217
FFWJAN
MSC065-073-091-100430-
/O.NEW.KJAN.FF.W.0004.260110T0217Z-260110T0430Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Jackson MS
817 PM CST Fri Jan 9 2026

The National Weather Service in Jackson has issued a

* Flash Flood Warning for...
  Southeastern Jefferson Davis County in south central Mississippi...
  Northern Marion County in south central Mississippi...
  Northwestern Lamar County in southeastern Mississippi...

* Until 1030 PM CST.

* At 817 PM CST, 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 1 to 1.5 inches 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...
  Columbia, Kokomo, Bunker Hill, Goss, Society Hill, Improve, 
  Morgantown, Holly Springs and Melba.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Be aware of your surroundings and do not drive on flooded roads.

&&

LAT...LON 3134 9004 3155 8963 3150 8959 3143 8959
      3136 8953 3134 8964 3113 8999 3113 9000
      3118 9001 3118 9003

FLASH FLOOD...RADAR INDICATED
EXPECTED RAINFALL RATE...1-1.5 INCHES IN 1 HOUR

$$

KP

1 follow-up statement

643 
WGUS74 KJAN 100354
FFSJAN

Flash Flood Statement
National Weather Service Jackson MS
954 PM CST Fri Jan 9 2026

MSC065-073-091-100404-
/O.CAN.KJAN.FF.W.0004.000000T0000Z-260110T0430Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Jefferson Davis MS-Lamar MS-Marion MS-
954 PM CST Fri Jan 9 2026

...FLASH FLOOD WARNING IS CANCELLED FOR SOUTHEASTERN JEFFERSON 
DAVIS, NORTHERN MARION AND NORTHWESTERN LAMAR COUNTIES...

The heavy rain has ended. Flooding is no longer expected to pose a 
threat. Please continue to heed remaining road closures.

A Flood Watch remains in effect until 1200 AM CST for portions of 
central, east central, south central, southeast, and southwest 
Mississippi.

&&

LAT...LON 3134 9004 3155 8963 3150 8959 3143 8959
      3136 8953 3134 8964 3113 8999 3113 9000
      3118 9001 3118 9003

$$

KP

What forecasters said that day

The local office's own words before this flash flood 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 flash flood warning went out at Jan 9, 5:47 PM CST, 2 hours 30 minutes earlier. Its key messages:

Flash flooding and additional severe weather remain concerns into tonight.
Much cooler temperatures are expected following the cold front this weekend.
Colder weather may be in store in the longer range.

Area forecast discussion, Jan 9, 5:47 PM CST, 2 hours 30 minutes before

Area Forecast Discussion...UPDATED
National Weather Service Jackson MS
547 PM CST Fri Jan 9 2026

...New AVIATION...

.KEY MESSAGES...

  - Flash flooding and additional severe weather remain concerns
    into tonight.

  - Much cooler temperatures are expected following the cold
    front this weekend.

  - Colder weather may be in store in the longer range.

&&

.DISCUSSION...
Issued at 345 PM CST Fri Jan 9 2026

Tonight: A shortwave trough crossing the Southern Plains is
approaching our region and increasing large scale ascent, and this
will maintain our current marginal/slight severe and heavy rain
event as we go into the evening. Compared to previous forecasts,
the threats have become more confined to southern/eastern portions
of the area, and diminishing low level shear will help to further
reduce the tornado threat as we go into the evening. There could
be a slight rebound in low level shear parameters late this
evening when the shortwave trough approaches and helps to back and
strengthen low level wind fields, and this may be the brief
window of time to monitor for any additional tornado threats.
Otherwise, damaging wind gusts would be the primary concerns, and
thunderstorm risk should diminish prior to daybreak. With very
moist air continuing to be transported into the system, rainfall
is quite efficient with the deep convection and this will continue
to support a flash flood threat where convection can become
focused for 2+ hours.

Saturday through Sunday: The front and lingering light rainfall
will push through quickly in the morning, and then much drier and
cooler air will advect in behind the front, with the greater cold
advection holding off until Saturday night/Sunday. While
temperatures will actually be just a little below normal, they
will feel much cooler after the recent very warm conditions.

Sunday night through the upcoming week: The forecast will be on
the cool side and mostly dry with northwest flow aloft being the
strongest influence. Global models are keying in on a bigger
surge of cold air into the forecast area as we finish up next
week, when amplification of eastern CONUS longwave trough is
forecast by most guidance now. It doesn't appear this will be
dangerously cold air, but it would still be impactful given the
timing in mid winter. /EC/

&&

.AVIATION...
(00Z TAFS)
Issued at 547 PM CST Fri Jan 9 2026

MVFR ceilings encompass much of the area late this afternoon, with
areas of IFR visibility in heavier rainfall. Scattered to numerous
SHRA and TS will continue to spread across the region overnight
into early Saturday morning ahead of a cold front that will push
through on Saturday. Overnight, ceilings will fall to the IFR/LIFR
range at most if not all sites with visibility frequently falling
to MVFR/IFR, especially in areas of heavier rain. In addition,
some storms, mainly in south MS and central LA could be severe
with 50 kt wind gusts and a tornado possible. Rain will decrease
on Saturday morning with wind shifting to northwest and becoming
gusty at times during the day. Ceilings will be slow to recover
and MVFR conditions may continue into the afternoon hours across
most of the area, though visibility restrictions are expected to
go away before midday. A few areas may return to VFR by late
afternoon Saturday. /DL/

&&

.PRELIMINARY POINT TEMPS/POPS...
Jackson       60  67  38  52 /  90  80   0   0
Meridian      61  70  38  53 /  90  80   0   0
Vicksburg     58  65  37  53 /  90  60   0   0
Hattiesburg   65  75  43  60 /  90  80  10   0
Natchez       59  67  39  55 /  90  60   0   0
Greenville    56  60  37  48 / 100  30   0   0
Greenwood     57  63  36  50 / 100  60   0   0

&&

.JAN WATCHES/WARNINGS/ADVISORIES...
MS...Flood Watch until midnight CST tonight for MSZ038-039-043>046-
     048>066-072>074.

LA...None.
AR...None.
&&

EC/DL

In the hours before

Special weather statement, Jan 9, 3:23 PM CST, 4 hours 54 minutes before

Special Weather Statement
National Weather Service Jackson MS
323 PM CST Fri Jan 9 2026

MSZ072-073-092200-
Lamar MS-Marion MS-
323 PM CST Fri Jan 9 2026

...A STRONG THUNDERSTORM WILL IMPACT CENTRAL MARION AND NORTHWESTERN
LAMAR COUNTIES THROUGH 400 PM CST...

At 322 PM CST, Doppler radar was tracking a strong thunderstorm near
Columbia, moving northeast at 35 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...
  Columbia around 325 PM CST.
  Improve around 335 PM CST.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

Torrential rainfall is also occurring with this storm and may lead to
localized flooding. Do not drive your vehicle through flooded
roadways.

&&

LAT...LON 3124 9001 3144 8970 3143 8960 3126 8947
      3113 8994
TIME...MOT...LOC 2122Z 240DEG 29KT 3123 8990

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

KP

Special weather statement, Jan 9, 3:52 PM CST, 4 hours 25 minutes before

Special Weather Statement
National Weather Service Jackson MS
352 PM CST Fri Jan 9 2026

LAZ009-016-MSZ040-041-047-092230-
Madison LA-East Carroll LA-Sharkey MS-Warren MS-Issaquena MS-
352 PM CST Fri Jan 9 2026

...A STRONG THUNDERSTORM WILL IMPACT SOUTHEASTERN EAST CARROLL AND
NORTHEASTERN MADISON PARISHES...NORTHWESTERN WARREN...CENTRAL
ISSAQUENA AND SOUTHWESTERN SHARKEY COUNTIES THROUGH 430 PM CST...

At 352 PM CST, Doppler radar was tracking a strong thunderstorm near
Mansford, or near Tallulah, moving north at 25 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...
  Mansford, Omega, and Sondheimer around 355 PM CST.
  Eagle Bend around 400 PM CST.
  Alsatia around 410 PM CST.
  Transylvania around 420 PM CST.

Other locations impacted by this storm include Richmond.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 3276 9119 3273 9083 3231 9105 3236 9130
TIME...MOT...LOC 2152Z 194DEG 22KT 3242 9113

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

KP

Special weather statement, Jan 9, 4:53 PM CST, 3 hours 24 minutes before

Special Weather Statement
National Weather Service Jackson MS
453 PM CST Fri Jan 9 2026

LAZ024>026-092345-
Tensas LA-Concordia LA-Catahoula LA-
453 PM CST Fri Jan 9 2026

...A STRONG THUNDERSTORM WILL IMPACT SOUTHWESTERN TENSAS...NORTHERN
CONCORDIA AND NORTHEASTERN CATAHOULA PARISHES THROUGH 545 PM CST...

At 453 PM CST, Doppler radar was tracking a strong thunderstorm near
Frogmore, or 8 miles northeast of Jonesville, moving northeast 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...
  Clayton and Lee Bayou around 500 PM CST.
  Sicily Island around 505 PM CST.
  Waterproof around 520 PM CST.
  Cooter Point around 525 PM CST.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 3191 9160 3188 9160 3188 9158 3191 9154
      3191 9153 3194 9151 3195 9149 3180 9136
      3176 9136 3176 9133 3175 9137 3174 9138
      3156 9175 3173 9183
TIME...MOT...LOC 2253Z 237DEG 27KT 3169 9171

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

KP

Local storm report, Jan 9, 6:21 PM CST, 1 hour 56 minutes before

Preliminary Local Storm Report
National Weather Service Jackson MS
621 PM CST Fri Jan 9 2026

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

0633 AM     Tornado          3 S Kokomo              31.16N 90.01W
01/09/2026                   Marion             MS   NWS Storm Survey

            A EF-1 tornado crossed into western Marion
            County near Kokomo. The tornado caused some
            tree damage near the intersection of Welch
            Lane and Branton Bay Road. The tornado
            tracked northeast closely following Branton
            Bay Road up to Highway 98. The tornado did
            cause some roof damage to Popwells Family
            Restaurant on Hwy 98. The tornado ended as
            it crossed Old Hwy 24. Max winds estimated
            at 90 MPH. Max path width 125 yards.

&&

MH/DL

Special weather statement, Jan 9, 6:39 PM CST, 1 hour 38 minutes before

Special Weather Statement
National Weather Service Jackson MS
639 PM CST Fri Jan 9 2026

LAZ008-009-015-016-023-100130-
Madison LA-Richland LA-East Carroll LA-West Carroll LA-Franklin LA-
639 PM CST Fri Jan 9 2026

...A STRONG THUNDERSTORM WILL IMPACT SOUTHWESTERN EAST CARROLL...
NORTHWESTERN MADISON...NORTHEASTERN RICHLAND...SOUTHWESTERN WEST
CARROLL AND NORTHEASTERN FRANKLIN PARISHES THROUGH 730 PM CST...

At 639 PM CST, Doppler radar was tracking a strong thunderstorm near
Delhi, moving north at 35 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...
  Delhi, Warden, Waverly, and Tendal around 645 PM CST.
  Epps and Monticello around 650 PM CST.
  Darnell around 700 PM CST.
  Pioneer around 705 PM CST.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 3231 9140 3233 9161 3277 9157 3275 9127
TIME...MOT...LOC 0039Z 188DEG 29KT 3240 9149

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

KP

The office that day

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

Issued	Product	Office	Counties	Lasted
Jan 9, 9:14 PM CST	Severe Thunderstorm Warning	JAN	Issaquena, Warren	30 min
Jan 9, 11:42 PM CST	Special Weather Statement	JAN	Washington	63 min
Jan 10, 1:37 AM CST	Tornado Warning	JAN	Copiah, Lawrence, Lincoln, Simpson	43 min
Jan 10, 3:23 AM CST	Special Weather Statement	JAN	Covington, Jefferson Davis, Lawrence	67 min
Jan 10, 3:51 AM CST	Flash Flood Warning	JAN	Covington, Franklin, Jefferson Davis, Lawrence, Lincoln, Simpson	3 hr
Jan 10, 3:53 AM CST	Tornado Warning	JAN	Covington, Jasper, Jones, Smith	67 min
Jan 10, 3:54 AM CST	Severe Thunderstorm Warning	JAN	Kemper, Lauderdale	34 min
Jan 10, 4:17 AM CST	Severe Thunderstorm Warning	JAN	Covington, Jefferson Davis, Jones	58 min
Jan 10, 4:23 AM CST	Tornado Warning	JAN	Covington, Jefferson Davis, Jones	67 min
Jan 10, 4:49 AM CST	Special Weather Statement	JAN	Newton, Simpson, Smith	56 min
Jan 10, 5:12 AM CST	Severe Thunderstorm Warning	JAN	Clarke, Jasper, Jones, Smith	63 min
Jan 10, 5:35 AM CST	Flash Flood Warning	JAN	Clarke, Covington, Jasper, Jefferson Davis, Jones, Lamar and 4 more	2 hr
Jan 10, 5:48 AM CST	Tornado Warning	JAN	Clarke	42 min
Jan 10, 7:31 AM CST	Flash Flood Warning	JAN	Forrest, Jones, Lamar, Marion	2 hr
Jan 10, 10:02 AM CST	River Flood Warning	JAN	Jones	71 hr

Nearby

Flash Flood Warnings in Mississippi, 2026 Every flash flood 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.