Alert archive / Mississippi / Flash Flood Warnings in 2025

Flash Flood Warning 12, NWS New Orleans, LA

April 6, 2025Harrison County, Jackson County, Mississippi

NWS New Orleans, LA issued this flash flood warning at Apr 6, 2025, 4:55 PM CDT for Harrison County, Jackson County, Mississippi. It was in force for 2 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Apr 6, 2025, 4:55 PM CDT (21:55 UTC)
Expired: Apr 6, 2025, 7:00 PM CDT
In force: 2 hr
Issued by: NWS New Orleans, LA
Area: Storm-based polygon
Flood severity: None

Counties Harrison County, MS, Jackson County, MS

The radar

The Mobile radar (KMOB), 64 km from the middle of the area, began a volume at 21:54 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.

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 12:00Z, 9.9 hours before the alert went out and 84 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: 1922 J/kg
Mixed-layer CIN: 0 J/kg
Mixed-layer LCL: 586 m above ground
0-6 km bulk shear: 45 kt
0-1 km storm-relative helicity: 296 m²/s²
0-3 km storm-relative helicity: 301 m²/s²
Significant tornado parameter: 2.9
Supercell composite: 14.9

Open this sounding in Storm Lab

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 New Orleans, LA wrote its last area forecast discussion before this flash flood warning went out at Apr 6, 3:28 PM CDT, 1 hour 27 minutes earlier.

Area forecast discussion, Apr 6, 3:28 PM CDT, 1 hour 27 minutes before

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In the hours before

Special weather statement, Apr 6, 11:01 AM CDT, 5 hours 54 minutes before

Special Weather Statement
National Weather Service New Orleans LA
1101 AM CDT Sun Apr 6 2025

MSZ077-083-084-086-061630-
Northern Hancock MS-Southern Hancock MS-Pearl River MS-
Northern Harrison MS-
1101 AM CDT Sun Apr 6 2025

...A STRONG THUNDERSTORM WILL IMPACT PORTIONS OF WEST CENTRAL
HARRISON, NORTHERN HANCOCK AND SOUTHEASTERN PEARL RIVER COUNTIES
THROUGH 1130 AM CDT...

At 1100 AM CDT, Doppler radar was tracking a strong thunderstorm
capable of producing funnel clouds and wind gusts to 40 mph near
Picayune, moving northeast at 25 mph.

HAZARD...Funnel clouds and winds in excess of 40 mph.

SOURCE...Radar indicated.

IMPACT...If a funnel cloud briefly touches down, minor damage to
         outdoor objects is possible. Gusty winds could knock down
         tree limbs and blow around unsecured objects.

Locations impacted include...
Picayune and Kiln.

This includes Interstate 59 in Mississippi between mile markers 3 and
13.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 3037 8959 3054 8971 3076 8943 3053 8924
TIME...MOT...LOC 1600Z 235DEG 28KT 3051 8956

FUNNEL CLOUDS...POSSIBLE
MAX HAIL SIZE...0.00 IN
MAX WIND GUST...40 MPH

95/DM

Special weather statement, Apr 6, 11:25 AM CDT, 5 hours 30 minutes before

Special Weather Statement
National Weather Service New Orleans LA
1125 AM CDT Sun Apr 6 2025

MSZ083-084-061700-
Northern Hancock MS-Northern Harrison MS-
1125 AM CDT Sun Apr 6 2025

...A STRONG THUNDERSTORM WILL IMPACT PORTIONS OF NORTHERN HARRISON
AND NORTHEASTERN HANCOCK COUNTIES THROUGH NOON CDT...

At 1124 AM CDT, Doppler radar was tracking a strong thunderstorm
capable of producing funnel clouds 9 miles north of Kiln, or 11 miles
north of Diamondhead, moving east at 30 mph.

HAZARD...Funnel clouds and winds in excess of 40 mph.

SOURCE...Radar indicated.

IMPACT...If a funnel cloud briefly touches down, minor damage to
         outdoor objects is possible. Gusty winds could knock down
         tree limbs and blow around unsecured objects.

Locations impacted include...
Saucier and Lyman.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

Heavy rainfall is occurring with this storm and may lead to
localized ponding of water in low lying and poor drainage areas such
as underpasses. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 3046 8941 3061 8947 3065 8936 3065 8925
      3068 8924 3068 8904 3055 8897
TIME...MOT...LOC 1624Z 247DEG 28KT 3055 8938

FUNNEL CLOUDS...POSSIBLE
MAX HAIL SIZE...0.00 IN
MAX WIND GUST...40 MPH

95/DM

Special weather statement, Apr 6, 1:25 PM CDT, 3 hours 30 minutes before

Special Weather Statement
National Weather Service New Orleans LA
125 PM CDT Sun Apr 6 2025

MSZ084-085-087-088-061900-
Southern Harrison MS-Northern Jackson MS-Southern Jackson MS-
Northern Harrison MS-
125 PM CDT Sun Apr 6 2025

...A STRONG THUNDERSTORM WILL IMPACT PORTIONS OF CENTRAL HARRISON AND
NORTHWESTERN JACKSON COUNTIES THROUGH 200 PM CDT...

At 124 PM CDT, Doppler radar was tracking a strong thunderstorm near
Lyman, or near Gulfport, moving northeast at 40 mph.

HAZARD...Winds in excess of 40 mph.

SOURCE...Radar indicated.

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

Locations impacted include...
Gulfport, Biloxi, Latimer, Long Beach, Gulf Hills, Gulfport Airport,
Lyman, D'iberville, St. Martin, Vancleave, Hickory Hills, and Ocean
Springs.

This includes the following Interstates...
 Interstate 10 in Mississippi between mile markers 27 and 55.
 Interstate 110 in Mississippi between mile markers 2 and 4.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 3033 8918 3050 8927 3068 8890 3067 8889
      3069 8888 3073 8879 3048 8864
TIME...MOT...LOC 1824Z 241DEG 38KT 3045 8915

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

95/DM

Special weather statement, Apr 6, 2:08 PM CDT, 2 hours 47 minutes before

Special Weather Statement
National Weather Service New Orleans LA
208 PM CDT Sun Apr 6 2025

MSZ084-085-087-088-061945-
Southern Harrison MS-Northern Jackson MS-Southern Jackson MS-
Northern Harrison MS-
208 PM CDT Sun Apr 6 2025

...A STRONG THUNDERSTORM WILL IMPACT PORTIONS OF EAST CENTRAL
HARRISON AND NORTHWESTERN JACKSON COUNTIES THROUGH 245 PM CDT...

At 208 PM CDT, Doppler radar was tracking a strong thunderstorm
capable of producing funnel clouds over Latimer, or near St. Martin,
moving northeast at 30 mph.

HAZARD...Funnel clouds and winds in excess of 40 mph.

SOURCE...Radar indicated.

IMPACT...If a funnel cloud briefly touches down, minor damage to
         outdoor objects is possible. Gusty winds could knock down
         tree limbs and blow around unsecured objects.

Locations impacted include...
Wade, Latimer, Gulf Hills, Vancleave, D'iberville, Ocean Springs, St.
Martin, Hickory Hills, Biloxi, and Escatawpa.

This includes the following Interstates...
 Interstate 10 in Mississippi between mile markers 45 and 58.
 Interstate 110 in Mississippi between mile markers 2 and 4.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 3036 8885 3050 8898 3074 8871 3073 8862
      3056 8847
TIME...MOT...LOC 1908Z 231DEG 26KT 3048 8885

FUNNEL CLOUDS...POSSIBLE
MAX HAIL SIZE...0.00 IN
MAX WIND GUST...40 MPH

95/DM

Local storm report, Apr 6, 4:06 PM CDT, 49 minutes before

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The office that day

Everything else NWS New Orleans, LA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Apr 6, 7:11 AM CDT	Special Marine Warning	LIX		8 min
Apr 6, 7:12 AM CDT	Special Weather Statement	LIX	Saint Tammany	33 min
Apr 6, 10:00 AM CDT	Areal Flood Advisory	LIX	Jefferson, Lafourche, Saint Charles, Saint John the Baptist	115 min
Apr 6, 10:17 AM CDT	Special Marine Warning	LIX		43 min
Apr 6, 10:30 AM CDT	Special Weather Statement	LIX	Saint Tammany	30 min
Apr 6, 10:46 AM CDT	Areal Flood Advisory	LIX	Saint Tammany	71 min
Apr 6, 11:54 AM CDT	River Flood Warning	LIX	East Baton Rouge, Pointe Coupee, West Feliciana	91 days
Apr 6, 2:10 PM CDT	Special Marine Warning	LIX		65 min
Apr 6, 3:11 PM CDT	Special Marine Warning	LIX		49 min
Apr 6, 4:59 PM CDT	River Flood Warning	LIX	Saint Tammany	5 days
Apr 6, 3:20 AM CDT	Flash Flood Warning	LIX	Amite, Pike	2 hr
Apr 6, 5:42 AM CDT	Areal Flood Advisory	LIX	Amite, Pike	35 min
Apr 6, 11:01 AM CDT	Special Weather Statement	LIX	Hancock	29 min
Apr 6, 11:25 AM CDT	Special Weather Statement	LIX	Harrison	35 min
Apr 6, 1:25 PM CDT	Special Weather Statement	LIX	Harrison	35 min
Apr 6, 2:08 PM CDT	Special Weather Statement	LIX	Jackson	37 min
Apr 6, 2:13 PM CDT	Severe Thunderstorm Warning	LIX	Jackson	32 min
Apr 6, 2:39 PM CDT	Severe Thunderstorm Warning	LIX	Jackson	21 min
Apr 6, 2:46 PM CDT	Tornado Warning Tornado observed	LIX	Jackson	14 min
Apr 6, 3:58 PM CDT	Areal Flood Advisory	LIX	Harrison, Jackson	3 hr
Apr 6, 4:58 PM CDT	River Flood Warning	LIX	Pike, Walthall	29 hr
Apr 6, 5:00 PM CDT	River Flood Warning	LIX	Pearl River	49 hr

Nearby

Flash Flood Warnings in Mississippi, 2025 Every flash flood warning in 2025

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.