Alert archive / Mississippi / Flash Flood Warnings in 2026

Flash Flood Warning 36, NWS Jackson, MS

June 19, 2026Lamar County, Mississippi

NWS Jackson, MS issued this flash flood warning at Jun 19, 2026, 9:09 PM CDT for Lamar County, Mississippi. It was in force for 2 hr. 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: Jun 19, 2026, 9:09 PM CDT (02:09 UTC)
Expired: Jun 19, 2026, 11:30 PM CDT
In force: 2 hr
Issued by: NWS Jackson, MS
Area: Storm-based polygon
Flood severity: None

County Lamar County, MS

The radar

The Jackson/Brandon,MS radar (KDGX), 119 km from the middle of the area, began a volume at 02:11 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
Jun 19, 9:16 PM CDT	FLASH FLOOD	Talowah, MS	Flooding reported on Talowah Road.

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 flash flood warning; the first came 7 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

Slidell Radar S, LA (KSIL), launched 00:00Z, 2.2 hours before the alert went out and 116 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: 2627 J/kg
Mixed-layer CIN: -19 J/kg
Mixed-layer LCL: 1382 m above ground
0-6 km bulk shear: 19 kt
0-1 km storm-relative helicity: 14 m²/s²
0-3 km storm-relative helicity: 27 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.1

Open this sounding in Storm Lab

The text

As transmitted.

122 
WGUS54 KJAN 200209
FFWJAN
MSC073-200430-
/O.NEW.KJAN.FF.W.0036.260620T0209Z-260620T0430Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Jackson MS
909 PM CDT Fri Jun 19 2026

The National Weather Service in Jackson has issued a

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

* Until 1130 PM CDT.

* At 909 PM CDT, Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area. Between 1 and 2 inches of rain 
  have fallen. Additional rainfall amounts of 1 to 2 inches are 
  possible in the warned area. 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...
  Hattiesburg, West Hattiesburg, Purvis, Oak Grove, Sumrall, 
  Baxterville and Pine Ridge.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3128 8965 3136 8959 3143 8956 3143 8945
      3135 8945 3135 8935 3103 8935 3102 8965

FLASH FLOOD...RADAR INDICATED

$$

86

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 Jun 19, 2:33 PM CDT, 6 hours 36 minutes earlier. Its key messages:

Wet pattern will continue through the extended period.
Marginal risk (1 out of 5) for severe weather this afternoon.
Heat Stress will be a concern for the southwest portions of the area this afternoon.

Area forecast discussion, Jun 19, 2:33 PM CDT, 6 hours 36 minutes before

Area Forecast Discussion
National Weather Service Jackson MS
233 PM CDT Fri Jun 19 2026

...New DISCUSSION...

.KEY MESSAGES...

- Wet pattern will continue through the extended period.

- Marginal risk (1 out of 5) for severe weather this afternoon.

- Heat Stress will be a concern for the southwest portions of the
  area this afternoon.

&&

.DISCUSSION...
Issued at 226 PM CDT Fri Jun 19 2026

Through Saturday: Early afternoon surface analysis had a cold front
dropping south of our Highway 82 corridor as was overtaking an old
stalled boundary that was draped across our delta region extending
east southeast across central and east central Mississippi.
Convection was noted firing along the old boundary and ahead of the
cold front. Just to our west regional radars showed a line of storms
over southwest Arakansas and northwest Louisiana associated with
a shortwave and an MCV. All this convective activity is expected
to merge over our CWA this afternoon and continue to spread east
southeast this evening before gradually dissipating. Isolated
severe storms capable of damaging wind gusts will be possible
generally south of the Highway 82 corridor. These storms will also
bring the threat for locally heavy rainfall. Considering the
antecedent conditions and river flooding across our CWA, flash
flooding will be likely in spots generally south of Highway 82 but
our southeast remains the most vulnerable due to the recent
flooding rainfall. The Flash Flood Watch remains in effect through
this evening. In addition, the warm and very moist airmass over
our CWA with PWATs greater than two inches, has combined with
temperatures in the lower 90s to result in peak heat index values
above 105F across our southwest this afternoon. A Heat advisory
remains in effect for that area until this evening. The cold front
is expected to stall across the central portions of our CWA by
morning. Although most of the convection will see a distinct
diurnal trend additional rainfall will be possible through the
night as the stalled cold front will remain a focus for
redevelopment. Guidance suggests an early start Saturday to
convection. This early start is expected to hold temperatures down
even in our south so heat stress will be less of a concern.
Rainfall rates with Saturday's convection is expected to be lower
and although we will not extend the Flash Flood Watch this
forecast package, flooding will remain a concern due to the
antecedent conditions and continued river flooding. /22/

Through Thursday:
Sunday: The wet pattern will continue as a shortwave trough moves
over the Lower MS River Valley and interacts with the stalled
frontal boundary over our CWA through Sunday. CAM models suggest
the formation of couple of MCSs near TX/AR that will head towards
our area. With the previous rainfall, saturated soil, and storm
training, flooding will remain a concern.

Monday through Thursday: High pressure over AZ/NM and northern
Mexico and longwave troughing over the Great Lakes/Ohio Region
will set up the next chances for rain. Multiple shortwave
disturbances are expected to traverse over our CWA with additional
rounds of wet weather for the duration of week. Chances for
severe weather can't be ruled out, however, nothing has been
outlooked at this time. /SW/

&&

.AVIATION...
(18Z TAFS)
Issued at 1258 PM CDT Fri Jun 19 2026

A band of TSRA across cntrl and east cntrl MS wl maintain lower
flight restrictions this aftn. Elsewhere VFR conditions wl
continue until scattered to numerous TSRA move in from the west
and spread se through this evening before dissipating. After 08Z
MVFR cigs wl develop at most TAF sites. Widespread -RA wl move
over the area from the nw by 12Z and continue to result in lower
flight restrictions through the end of the TAF period. /22/

&&

.PRELIMINARY POINT TEMPS/POPS...
Jackson       73  87  73  89 /  70  90  40  60
Meridian      73  85  72  88 /  60  90  40  60
Vicksburg     74  88  74  89 /  60  80  40  60
Hattiesburg   75  89  75  89 /  50  80  40  40
Natchez       75  90  75  90 /  60  70  40  50
Greenville    73  86  73  89 /  60  80  40  60
Greenwood     72  86  73  89 /  50  80  40  70

&&

.JAN WATCHES/WARNINGS/ADVISORIES...
MS...Flood Watch until 7 PM CDT this evening for MSZ040>066-072>074.

     Heat Advisory until 7 PM CDT this evening for MSZ053-054-059>064-
     072-073.

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

     Heat Advisory until 7 PM CDT this evening for LAZ023>026.

AR...None.
&&

22/SW/22

In the hours before

Special weather statement, Jun 19, 4:06 PM CDT, 5 hours 3 minutes before

Special Weather Statement
National Weather Service Jackson MS
406 PM CDT Fri Jun 19 2026

MSZ018-019-025>027-192200-
Carroll MS-Grenada MS-Leflore MS-Sunflower MS-Bolivar MS-
406 PM CDT Fri Jun 19 2026

...STRONG THUNDERSTORMS WILL IMPACT NORTHEASTERN SUNFLOWER...
NORTHWESTERN CARROLL...WESTERN GRENADA...NORTHERN LEFLORE AND BOLIVAR
COUNTIES THROUGH 500 PM CDT...

At 406 PM CDT, Doppler radar was tracking a cluster of strong
thunderstorms near Deeson, or 11 miles northwest of Shelby, moving
east at 30 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...
  Duncan and Alligator around 410 PM CDT.
  Rome around 450 PM CDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 3412 9066 3399 9066 3399 9045 3381 9045
      3381 9018 3370 9030 3381 9003 3383 8993
      3390 8992 3387 8972 3386 8972 3357 8983
      3373 9115 3378 9099 3397 9109 3396 9097
      3409 9087 3411 9094 3412 9095
TIME...MOT...LOC 2106Z 274DEG 24KT 3410 9085

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

86

Special weather statement, Jun 19, 5:26 PM CDT, 3 hours 43 minutes before

Special Weather Statement
National Weather Service Jackson MS
526 PM CDT Fri Jun 19 2026

MSZ027>029-192330-
Carroll MS-Montgomery MS-Webster MS-
526 PM CDT Fri Jun 19 2026

...A STRONG THUNDERSTORM WILL IMPACT CENTRAL CARROLL...SOUTHWESTERN
WEBSTER AND MONTGOMERY COUNTIES THROUGH 630 PM CDT...

At 526 PM CDT, Doppler radar was tracking a strong thunderstorm near
Coila, or near Carrollton, moving east at 25 mph.

HAZARD...Wind gusts up to 50 mph.

SOURCE...Radar indicated.

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

This strong thunderstorm will be near...
  Winona and Vaiden around 530 PM CDT.
  Poplar Creek around 555 PM CDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 3354 8935 3343 8942 3344 8945 3339 8945
      3328 8952 3328 8968 3337 9016 3346 9012
      3346 9010 3350 9010 3355 9008
TIME...MOT...LOC 2226Z 292DEG 23KT 3342 8989

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...50 MPH

86

Special weather statement, Jun 19, 6:22 PM CDT, 2 hours 47 minutes before

Special Weather Statement
National Weather Service Jackson MS
622 PM CDT Fri Jun 19 2026

MSZ057-065-066-200015-
Jones MS-Covington MS-Jasper MS-
622 PM CDT Fri Jun 19 2026

...A STRONG THUNDERSTORM WILL IMPACT SOUTHERN JASPER...NORTHEASTERN
COVINGTON AND JONES COUNTIES THROUGH 715 PM CDT...

At 621 PM CDT, Doppler radar was tracking a strong thunderstorm near
Soso, or near Laurel, moving southeast at 30 mph.

HAZARD...Wind gusts up to 50 mph.

SOURCE...Radar indicated.

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

This strong thunderstorm will be near...
  Laurel, Ellisville, and Tuckers Crossing around 625 PM CDT.
  Mill Creek around 640 PM CDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 3171 8951 3180 8941 3180 8932 3188 8932
      3195 8925 3187 8891 3183 8891 3182 8894
      3143 8894 3144 8923
TIME...MOT...LOC 2321Z 292DEG 27KT 3172 8922

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...50 MPH

86

Local storm report, Jun 19, 7:05 PM CDT, 2 hours 4 minutes before

Preliminary Local Storm Report
National Weather Service Jackson MS
705 PM CDT Fri Jun 19 2026

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

0631 PM     Hail             Calhoun                 31.70N 89.21W
06/19/2026  M1.00 Inch       Jones              MS   Emergency Mngr

            Quarter size hail was reported in Calhoun,
            west of Laurel.

&&

CR

Special weather statement, Jun 19, 8:36 PM CDT, 33 minutes before

Special Weather Statement
National Weather Service Jackson MS
836 PM CDT Fri Jun 19 2026

MSZ066-072>074-200230-
Jones MS-Lamar MS-Marion MS-Forrest MS-
836 PM CDT Fri Jun 19 2026

...A STRONG THUNDERSTORM WILL IMPACT SOUTHEASTERN MARION...FORREST...
LAMAR AND SOUTHERN JONES COUNTIES THROUGH 930 PM CDT...

At 836 PM CDT, Doppler radar was tracking a strong thunderstorm near
Purvis, moving southeast at 25 mph.

HAZARD...Wind gusts up to 50 mph.

SOURCE...Radar indicated.

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

This strong thunderstorm will be near...
  Purvis, Lumberton, and Rock Hill around 840 PM CDT.
  Maxie around 900 PM CDT.
  Brooklyn around 905 PM CDT.

Other locations impacted by this storm include Corinth.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 3101 8935 3101 8942 3098 8943 3098 8947
      3101 8950 3100 8970 3106 8975 3143 8945
      3143 8940 3146 8940 3144 8894 3143 8914
      3097 8914 3091 8920 3091 8934
TIME...MOT...LOC 0136Z 302DEG 20KT 3109 8946

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...50 MPH

86

Special weather statement, Jun 19, 9:06 PM CDT, 3 minutes before

Special Weather Statement
National Weather Service Jackson MS
906 PM CDT Fri Jun 19 2026

MSZ066-200245-
Jones MS-
906 PM CDT Fri Jun 19 2026

...A STRONG THUNDERSTORM WILL IMPACT JONES COUNTY THROUGH 945 PM
CDT...

At 906 PM CDT, Doppler radar was tracking a strong thunderstorm over
Moselle, or 8 miles southwest of Ellisville, moving southeast at 30
mph.

HAZARD...Wind gusts up to 50 mph.

SOURCE...Radar indicated.

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

This strong thunderstorm will be near...
  Laurel and Moselle around 910 PM CDT.
  Ovett around 930 PM CDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 3146 8940 3151 8940 3176 8923 3167 8894
      3143 8895
TIME...MOT...LOC 0206Z 297DEG 25KT 3151 8932

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...50 MPH

86

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 19, 7:01 PM CDT	Severe Thunderstorm Warning	JAN	Lowndes, Noxubee, Oktibbeha, Winston	59 min
Jun 19, 8:02 PM CDT	Flash Flood Warning	JAN	Forrest	3 hr
Jun 19, 8:36 PM CDT	Special Weather Statement	JAN	Forrest, Lamar	54 min
Jun 19, 9:06 PM CDT	Special Weather Statement	JAN	Jones	39 min
Jun 19, 11:15 PM CDT	River Flood Warning	JAN	Covington, Forrest	11 hr
Jun 19, 11:35 PM CDT	Special Weather Statement	JAN	Hinds	40 min
Jun 20, 3:29 AM CDT	Flood Watch	JAN	Adams, Attala, Choctaw, Claiborne, Clarke, Copiah and 24 more	11 hr
Jun 20, 7:33 AM CDT	Special Weather Statement	JAN	Warren	42 min
Jun 20, 8:13 AM CDT	Special Weather Statement	JAN	Hinds	47 min
Jun 20, 8:21 AM CDT	Special Weather Statement	JAN	Madison	39 min
Jun 20, 11:06 AM CDT	Special Weather Statement	JAN	Jones	39 min
Jun 20, 1:06 PM CDT	River Flood Warning	JAN	Copiah, Simpson	8 days
Jun 20, 1:06 PM CDT	River Flood Warning	JAN	Lawrence	9 days

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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.