Alert archive / Mississippi / Flash Flood Warnings in 2026

Flash Flood Warning 24, NWS Jackson, MS

May 25, 2026Forrest County, Lamar County, Mississippi

NWS Jackson, MS issued this flash flood warning at May 25, 2026, 3:57 PM CDT for Forrest County, Lamar County, Mississippi. It was in force for 6 hr. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: May 25, 2026, 3:57 PM CDT (20:57 UTC)
Expired: May 25, 2026, 10:00 PM CDT
In force: 6 hr
Issued by: NWS Jackson, MS
Area: Storm-based polygon
Emergency: Flash flood emergency
Damage threat: Catastrophic
Flood severity: None

Counties Forrest County, MS, Lamar County, MS

The radar

The Mobile radar (KMOB), 109 km from the middle of the area, began a volume at 20:58 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

Slidell Radar S, LA (KSIL), launched 12:00Z, 9.0 hours before the alert went out and 101 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: 476 J/kg
Mixed-layer CIN: -26 J/kg
Mixed-layer LCL: 635 m above ground
0-6 km bulk shear: 18 kt
0-1 km storm-relative helicity: 89 m²/s²
0-3 km storm-relative helicity: 164 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

300 
WGUS54 KJAN 252057
FFWJAN
MSC035-073-260300-
/O.NEW.KJAN.FF.W.0024.260525T2057Z-260526T0300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Jackson MS
357 PM CDT Mon May 25 2026

...FLASH FLOOD EMERGENCY FOR PETAL AND PORTIONS OF FORREST COUNTY...

The National Weather Service in Jackson has issued a

* Flash Flood Warning for...
  Forrest County in southeastern Mississippi...
  Southeastern Lamar County in southeastern Mississippi...

* Until 1000 PM CDT Monday.

* At 357 PM CDT, emergency management reported flash flooding in 
  Petal and portions of Forrest County. Flash flooding is already 
  occurring from earlier rainfall.

  This is a FLASH FLOOD EMERGENCY for Petal and portions of Forrest 
  County. This is a PARTICULARLY DANGEROUS SITUATION. SEEK HIGHER 
  GROUND NOW!

  HAZARD...Life threatening flash flooding. Heavy rain producing
           flash flooding.

  SOURCE...Emergency management reported.

  IMPACT...This is a PARTICULARLY DANGEROUS SITUATION. SEEK
           HIGHER GROUND NOW! Life threatening flash flooding of
           low water crossings, small creeks and streams, urban
           areas, highways, streets and underpasses.

* Some locations that will experience flash flooding include...
  Hattiesburg, Petal, West Hattiesburg, Purvis, McLaurin, Rock Hill, 
  Sunrise, Brooklyn, Maxie and Macedonia.

This includes the following streams and drainages...
  Black Creek, Myers Creek, Macklin Creek, Hartfield Creek, Priests 
  Creek, Tan Trough Creek, Bouie River, Sandy Run, Camerons Reed 
  Brake, Allens Reed Brake, Braiden Creek, Gillis Creek, South 
  Branch Red Creek, Little Beaver Creek, Black Tom Creek, Long 
  Branch, Sweatmans Creek, Mill Creek, Poplar Creek, Beaverdam 
  Branch, Pearces Mill Creek, Mixon Creek, Tallahala Creek, 
  Beaverdam Creek, Cameron Creek, Big Creek, Little Black Creek, 
  Myers Bay Creek, Leaf River, Boggy Branch, Double Branch, Greens 
  Creek, Indian Creek, Reese Creek, Walls Creek, Red Creek, White 
  Pond Creek, Burketts Creek, Bufkins Branch and Morris Branch.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Move to higher ground now! This is an extremely dangerous and 
life-threatening situation. Do not attempt to travel unless you are 
fleeing an area subject to flooding or under an evacuation order.

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

&&

LAT...LON 3143 8915 3100 8915 3100 8914 3091 8914
      3092 8920 3097 8934 3100 8934 3101 8935
      3101 8942 3100 8942 3103 8950 3143 8935

FLASH FLOOD...OBSERVED
FLASH FLOOD DAMAGE THREAT...CATASTROPHIC

$$

SW

3 follow-up statements

464 
WGUS74 KJAN 252059
FFSJAN

Flash Flood Statement
National Weather Service Jackson MS
359 PM CDT Mon May 25 2026

MSC035-073-260300-
/O.CON.KJAN.FF.W.0024.000000T0000Z-260526T0300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Forrest MS-Lamar MS-
359 PM CDT Mon May 25 2026

...FLASH FLOOD EMERGENCY FOR PETAL AND PORTIONS OF FORREST COUNTY...

...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 10 PM CDT THIS 
EVENING FOR FORREST AND SOUTHEASTERN LAMAR COUNTIES...

At 359 PM CDT, emergency management reported flash flooding in Petal 
and portions of Forrest County. Flash flooding is already occurring 
from earlier rainfall.

This is a FLASH FLOOD EMERGENCY for Petal and portions of Forrest 
County. This is a PARTICULARLY DANGEROUS SITUATION. SEEK HIGHER 
GROUND NOW!

HAZARD...Life threatening flash flooding. Heavy rain producing
         flash flooding.

SOURCE...Emergency management reported.

IMPACT...This is a PARTICULARLY DANGEROUS SITUATION. SEEK HIGHER
         GROUND NOW! Life threatening flash flooding of low water
         crossings, small creeks and streams, urban areas,
         highways, streets and underpasses.

Some locations that will experience flash flooding include...
  Hattiesburg, Petal, West Hattiesburg, Purvis, McLaurin, Rock Hill, 
  Sunrise, Brooklyn, Maxie and Macedonia.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Move to higher ground now! This is an extremely dangerous and 
life-threatening situation. Do not attempt to travel unless you are 
fleeing an area subject to flooding or under an evacuation order.

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

&&

LAT...LON 3143 8915 3100 8915 3100 8914 3091 8914
      3092 8920 3097 8934 3100 8934 3101 8935
      3101 8942 3100 8942 3103 8950 3143 8935

FLASH FLOOD...OBSERVED
FLASH FLOOD DAMAGE THREAT...CATASTROPHIC

$$

SW

373 
WGUS74 KJAN 252303
FFSJAN

Flash Flood Statement
National Weather Service Jackson MS
603 PM CDT Mon May 25 2026

MSC035-073-260300-
/O.CON.KJAN.FF.W.0024.000000T0000Z-260526T0300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Forrest MS-Lamar MS-
603 PM CDT Mon May 25 2026

...FLASH FLOOD EMERGENCY FOR PETAL AND PORTIONS OF FORREST COUNTY...

...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 10 PM CDT THIS 
EVENING FOR FORREST AND SOUTHEASTERN LAMAR COUNTIES...

At 603 PM CDT, emergency management reported flash flooding in Petal 
and portions of Forrest County. Flash flooding is already occurring 
from earlier rainfall.

This is a FLASH FLOOD EMERGENCY for Petal and portions of Forrest 
County. This is a PARTICULARLY DANGEROUS SITUATION. SEEK HIGHER 
GROUND NOW!

HAZARD...Life threatening flash flooding. Heavy rain producing
         flash flooding.

SOURCE...Emergency management reported.

IMPACT...This is a PARTICULARLY DANGEROUS SITUATION. SEEK HIGHER
         GROUND NOW! Life threatening flash flooding of low water
         crossings, small creeks and streams, urban areas,
         highways, streets and underpasses.

Some locations that will experience flash flooding include...
  Hattiesburg, Petal, West Hattiesburg, Purvis, McLaurin, Rock Hill, 
  Sunrise, Brooklyn, Maxie and Macedonia.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Move to higher ground now! This is an extremely dangerous and 
life-threatening situation. Do not attempt to travel unless you are 
fleeing an area subject to flooding or under an evacuation order.

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

&&

LAT...LON 3143 8915 3100 8915 3100 8914 3091 8914
      3092 8920 3097 8934 3100 8934 3101 8935
      3101 8942 3100 8942 3103 8950 3143 8935

FLASH FLOOD...OBSERVED
FLASH FLOOD DAMAGE THREAT...CATASTROPHIC

$$

SW

872 
WGUS74 KJAN 260257
FFSJAN

Flash Flood Statement
National Weather Service Jackson MS
957 PM CDT Mon May 25 2026

MSC035-073-260307-
/O.EXP.KJAN.FF.W.0024.000000T0000Z-260526T0300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Forrest MS-Lamar MS-
957 PM CDT Mon May 25 2026

...FLASH FLOOD WARNING WILL EXPIRE AT 10 PM CDT THIS EVENING FOR 
FORREST AND SOUTHEASTERN LAMAR COUNTIES...

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

&&

LAT...LON 3143 8915 3100 8915 3100 8914 3091 8914
      3092 8920 3097 8934 3100 8934 3101 8935
      3101 8942 3100 8942 3103 8950 3143 8935

$$

SW

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 May 25, 2:30 PM CDT, 1 hour 27 minutes earlier. Its key messages:

Periods of heavy rainfall and flash flooding will be possible throughout this week.

Area forecast discussion, May 25, 2:30 PM CDT, 1 hour 27 minutes before

Area Forecast Discussion
National Weather Service Jackson MS
230 PM CDT Mon May 25 2026

...New DISCUSSION...

.KEY MESSAGES...

- Periods of heavy rainfall and flash flooding will be possible
  throughout this week.

&&

.DISCUSSION...
Issued at 225 PM CDT Mon May 25 2026

Through Tuesday: Local radars were lit up over the eastern half of
our CWA with moderate to heavy rainfall, including a few
thunderstorms. This activity was being enhanced by a couple of weak
MCVs. The first MCV now over our northeast zones moved up from the
south this morning and resulted in isolated severe storm potential.
This severe storm threat has ended although the potential for heavy
rainfall will continue into this evening as a second MCV moving
north over Forest county will continue tracking north and gradually
dissipating. Latest satellite imagery/RAP analysis showed the
circulation around a cutoff low spinning over east Texas. This
feature is expected to open up tonight and lift north Tuesday. This
will help maintain a deep southerly flow over our CWA that will
maintain rain chances tonight and Tuesday eventhough the current
activity will decrease this evening. Rainfall intensity will
increase again Tuesday during the day. Latest guidance suggests the
heaviest rainfall amounts will again be over the southeast half of
our CWA. The "Limited" threat for flooding graphic will be
maintained as the rainfall amounts projected are not a slam dunk for
flash flooding. A few of our rivers are on the rise in our southeast
so a few more river flood warnings may be issued later this evening.
/22/

Through early next week...

Generally speaking, broad cyclonic flow will persist and will
maintain moist trajectories that support continued rain chances
through the period. As such, the threat for flash flooding continues
and will continue to advertise areawide limited flash flood. The
graphic has been updated through Wednesday, and further extensions
may be needed for as long as the pattern persists. Additionally,
there may be mesoscale features day-to-day, such as MCVs, that could
locally increase threat. Marginal severe threats day-to-day may also
persist as these MCVs are capable of localized severe winds and weak
tornadoes. The tropical-like airmass characterized by 1.5-2.0 inch
PWAT does not modify until early next week as the trough axis shifts
east of the area. Most guidance has low rain chances persisting
through Monday and we don't look to completely dry out until beyond
the period. /SAS/

&&

.AVIATION...
(18Z TAFS)
Issued at 124 PM CDT Mon May 25 2026

Radars were showing SHRA/TSRA over the eastern half of the area
resulting in lower flight restrictions. VFR conditions will
continue in the west with isold SHRA/TSRA psbl this aftn. The
SHRA/TSRA activity wl gradually dissipate after 00Z Tue and VFR
conditions are expected until after 06Z. After 06Z MVFR cigs are
expected to develop then lower to IFR by 11Z. The IFR cigs wl
improve to MVFR by 16Z but MVFR cigs will prevail through the end
of the TAF period. /22/

&&

.PRELIMINARY POINT TEMPS/POPS...
Jackson       68  83  70  85 /  30  60  30  90
Meridian      68  81  69  86 /  50  80  30  90
Vicksburg     67  84  70  86 /  40  60  30  80
Hattiesburg   69  82  70  85 /  40  90  30  80
Natchez       68  85  71  86 /  40  60  40  90
Greenville    67  84  69  85 /  30  60  30  70
Greenwood     67  84  70  86 /  20  50  40  70

&&

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

22/SAS20/22

In the hours before

Special weather statement, May 25, 10:01 AM CDT, 5 hours 56 minutes before

Special Weather Statement
National Weather Service Jackson MS
1001 AM CDT Mon May 25 2026

MSZ045-046-251600-
Kemper MS-Neshoba MS-
1001 AM CDT Mon May 25 2026

...STRONG THUNDERSTORMS WILL IMPACT KEMPER AND NESHOBA COUNTIES
THROUGH 1100 AM CDT...

At 1001 AM CDT, Doppler radar was tracking a cluster of strong
thunderstorms over Prismatic, or 14 miles north of Meridian, moving
northwest at 35 mph.

HAZARD...Wind gusts up to 40 mph.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects.

This strong thunderstorm will be near...
  Damascus, Herbert Springs, and Liberty around 1005 AM CDT.
  Forestdale and Bluff Springs around 1015 AM CDT.
  Nanih Waiya and Preston around 1030 AM CDT.
  Stallo around 1045 AM CDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 3258 8913 3293 8930 3292 8842 3258 8841
TIME...MOT...LOC 1501Z 154DEG 29KT 3259 8879

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...40 MPH

SAS

The office that day

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

Issued	Product	Office	Counties	Lasted
May 25, 8:07 AM CDT	Special Weather Statement	JAN	Forrest, Lamar	83 min
May 25, 8:45 AM CDT	Special Weather Statement	JAN	Covington, Jasper, Jones	60 min
May 25, 9:31 AM CDT	Special Weather Statement	JAN	Newton, Smith	74 min
May 25, 10:01 AM CDT	Special Weather Statement	JAN	Kemper, Neshoba	59 min
May 25, 4:58 PM CDT	River Flood Warning	JAN	Forrest	37 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.