A weak upper level system combined with a stalled frontal boundary extending over portions of southeast Louisiana and coastal Mississippi to produce a period of training thunderstorms over parts of Harrison, Hancock, and Pearl River Counties in coastal Mississippi. Very high moisture content in the atmosphere and warm air in the mid and upper levels allowed for very high rainfall rates to…
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Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The episode as NWS LIX wrote it up.
A weak upper level system combined with a stalled frontal boundary extending over portions of southeast Louisiana and coastal Mississippi to produce a period of training thunderstorms over parts of Harrison, Hancock, and Pearl River Counties in coastal Mississippi. Very high moisture content in the atmosphere and warm air in the mid and upper levels allowed for very high rainfall rates to accompany these training thunderstorms resulting in flash flooding.
The local office's own words before the first event, 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 the first event at Jun 6, 4:29 AM CST, 8 hours 51 minutes earlier. Its key messages:
Area Forecast Discussion National Weather Service New Orleans LA 529 AM CDT Sat Jun 6 2026 ...New AVIATION... .KEY MESSAGES... Updated at 525 AM CDT Sat Jun 6 2026 - A weak tropical wave will continue to bring plenty of showers and a few storms to the area this weekend. As the wave moves west, winds and rain chances will lower as we move into the new week. - As easterly to east-southeasterly winds ease, it will allow water levels to ease as well causing coastal flood advisories to drop. Winds will fall to around 10 to 15 knots which will keep tide levels abnormally high today. More easing of these tide levels is expected Sunday into the new work week. - Abundant moisture will help lead to numerous to widespread light to moderate showers and embedded thunderstorms through the weekend. Areas east of I-55 and along and south of the 10/12 corridors will have the greatest risk of seeing locally heavy rain. && .SHORT TERM... (Now through Tuesday) Issued at 1119 PM CDT Fri Jun 5 2026 As occurs with all easterly waves, this one will and is moving west this morning, but taking its time. As it moves west, the high over the Atlantic is also weakening its grip over the northern gulf by allowing the ridged pressure field to drop by 2mb today. This will cause the horizontal pressure field to relax. These two have been interacting with each other to produce the moderate winds over the area and stream a good bit of tropical moisture northward. As the gradient weakens, the winds will begin to weaken, but they won't go calm so the rain will slowly lower in chances through Sunday. Then we should finally see some relative "dry" time. It's in quotes because, it won't be completely dry for everyone as a normal diurnal setup will keep some areas wet during the heat of the day. But at this point, we could use precip numbers in the 30% range. && .LONG TERM... (Tuesday night through Thursday) Issued at 1119 PM CDT Fri Jun 5 2026 Tuesday night through Thursday, high pressure builds over the area. Conditions will be quite a bit drier than the weekend, but not completely. Isolated to scattered showers and storms will be possible during the afternoon peak daytime heating hours each day. These storms will mainly have the risk of lightning where they occur. High temperatures will be warm with highs in the low 90s and heat index values approaching 100 degrees during the week, mainly during the afternoon and early evening hours. So, generally expect lower rain chances through the end of the week with warm temperatures. Friday into the weekend, there are a few model discrepancies given it is so far out, but generally another Gulf moisture plume is expected to approach the area next Friday and afterward. This will likely enhance rain chances for the area, especially during peak daytime heating hours. And rain chances could definitely change as the week progresses, depending on where the Gulf moisture goes. We will keep monitoring for changes. MSW && .AVIATION... (12Z TAFS) Issued at 525 AM CDT Sat Jun 6 2026 All cigs remain MVFR to VFR this morning and should remain within in those levels the rest of today. Streamers of RA will move into the area today and could cause these cigs and vis to temporarily fall into IFR criteria. This will be especially true for moderate to heavy sh/ts with some of these training over a few terminals possible today. Intensity of rainfall will be diurnally driven with lighter amounts again tonight. && .MARINE... Issued at 1119 PM CDT Fri Jun 5 2026 Winds will begin to relax overnight tonight allowing for improving conditions by Saturday morning allwing headlines to drop across all waters. Overall, winds will still be 10 to 15 knots to start the new workweek lasting through the end of the forecast cycle. Scattered showers and thunderstorms will also be possible with the higher coverage early in the forecast period. Winds and seas will locally be high in and near convection. && .LIX WATCHES/WARNINGS/ADVISORIES... LA...None. GM...None. MS...None. GM...None. && SHORT TERM...TE LONG TERM....TE AVIATION...TE MARINE...TE
Special Weather Statement
National Weather Service New Orleans LA
1242 PM CDT Sat Jun 6 2026
LAZ058-094-100-061815-
St. John The Baptist LA-Upper Lafourche LA-Lower St. Charles LA-
1242 PM CDT Sat Jun 6 2026
...A STRONG THUNDERSTORM WILL IMPACT PORTIONS OF SOUTHWESTERN ST.
JOHN THE BAPTIST, WEST CENTRAL ST. CHARLES AND NORTH CENTRAL
LAFOURCHE PARISHES THROUGH 115 PM CDT
...
At 1242 PM CDT, Doppler radar was tracking a strong thunderstorm
capable of producing funnel clouds and waterspouts near Des
Allemands, or 11 miles southwest of Hahnville, moving northeast at 20
mph.
HAZARD...Waterspouts and funnel clouds and winds in excess of 40
mph.
SOURCE...Radar indicated.
IMPACT...Waterspouts can easily overturn boats and create locally
hazardous waters. 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...
Hahnville, Paradis, Des Allemands, Boutte, Killona, Bayou Gauche, and
Luling.
This includes Interstate 310 between mile markers 9 and 11.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
Torrential rainfall is occurring with this storm and may lead to
localized flooding. Do not drive your vehicle through flooded
roadways.
&&
LAT...LON 2976 9050 2977 9059 2985 9067 2999 9061
3000 9049 2992 9038
TIME...MOT...LOC 1742Z 204DEG 19KT 2985 9057
WATERSPOUT AND FUNNEL CLOUDS...POSSIBLE
MAX HAIL SIZE...0.00 IN
MAX WIND GUST...40 MPH
KLGSpecial Weather Statement
National Weather Service New Orleans LA
116 PM CDT Sat Jun 6 2026
MSZ077-083-061845-
Northern Hancock MS-Pearl River MS-
116 PM CDT Sat Jun 6 2026
...A STRONG THUNDERSTORM WILL IMPACT PORTIONS OF NORTH CENTRAL
HANCOCK AND SOUTH CENTRAL PEARL RIVER COUNTIES THROUGH 145 PM CDT
...
At 116 PM CDT, Doppler radar was tracking a strong thunderstorm
capable of producing funnel clouds over Mcneil, or 10 miles north of
Picayune, moving southeast at 15 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...
Mcneil.
This includes Interstate 59 in Mississippi between mile markers 10
and 19.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
&&
LAT...LON 3069 8973 3076 8962 3065 8948 3057 8954
3056 8962
TIME...MOT...LOC 1816Z 325DEG 14KT 3068 8964
FUNNEL CLOUDS...POSSIBLE
MAX HAIL SIZE...0.00 IN
MAX WIND GUST...40 MPH
KLGSpecial Weather Statement
National Weather Service New Orleans LA
142 PM CDT Sat Jun 6 2026
MSZ086-087-061915-
Southern Harrison MS-Southern Hancock MS-
142 PM CDT Sat Jun 6 2026
...A STRONG THUNDERSTORM WILL IMPACT PORTIONS OF SOUTHWESTERN
HARRISON AND SOUTHEASTERN HANCOCK COUNTIES THROUGH 215 PM CDT
...
At 142 PM CDT, Doppler radar was tracking a strong thunderstorm
capable of producing funnel clouds and waterspouts over Waveland,
moving northeast at 10 mph.
HAZARD...Waterspouts and funnel clouds and winds in excess of 40
mph.
SOURCE...Radar indicated.
IMPACT...Waterspouts can easily overturn boats and create locally
hazardous waters. 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...
Long Beach, Bay St. Louis, Waveland, Pass Christian, Diamondhead, and
Shoreline Park.
This includes Interstate 10 in Mississippi between mile markers 13
and 24.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
Torrential rainfall is occurring with this storm and may lead to
localized flooding. Do not drive your vehicle through flooded
roadways.
If on or near marine areas, get out of the water and move indoors or
inside a vehicle. Remember, lightning can strike out to 10 miles from
the parent thunderstorm. If you can hear thunder, you are close
enough to be struck by lightning. Move to safe shelter now! Do not be
caught on the water in a thunderstorm.
&&
LAT...LON 3028 8926 3028 8927 3029 8931 3024 8939
3026 8945 3039 8941 3041 8927 3038 8917
TIME...MOT...LOC 1842Z 204DEG 10KT 3029 8936
WATERSPOUT AND FUNNEL CLOUDS...POSSIBLE
MAX HAIL SIZE...0.00 IN
MAX WIND GUST...40 MPH
KLGPreliminary Local Storm Report
National Weather Service New Orleans LA
217 PM CDT Sat Jun 6 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0144 PM Marine Tstm Wind 6 WSW East New Orleans 30.04N 90.03W
06/06/2026 M44 MPH Orleans LA ASOS
ASOS station KNEW New Orleans Lakefront
Airport.
&&Special Weather Statement
National Weather Service New Orleans LA
217 PM CDT Sat Jun 6 2026
LAZ076-078-079-062000-
Southeast St. Tammany LA-Eastern Orleans LA-Northern St. Tammany LA-
217 PM CDT Sat Jun 6 2026
...A STRONG THUNDERSTORM WILL IMPACT PORTIONS OF NORTHEASTERN ORLEANS
AND SOUTHEASTERN ST. TAMMANY PARISHES THROUGH 300 PM CDT
...
At 216 PM CDT, Doppler radar was tracking a strong thunderstorm
capable of producing funnel clouds and waterspouts over Eden Isle,
moving northeast at 15 mph.
HAZARD...Waterspouts and funnel clouds and winds in excess of 40
mph.
SOURCE...Radar indicated.
IMPACT...Waterspouts can easily overturn boats and create locally
hazardous waters. 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...
New Orleans, Slidell, Eden Isle, and Pearlington.
This includes Interstate 10 in Louisiana between mile markers 259 and
273.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
&&
LAT...LON 3031 8963 3029 8965 3028 8963 3025 8963
3024 8961 3013 8962 3012 8977 3015 8980
3017 8977 3021 8985 3025 8989 3025 8986
3027 8985 3035 8965
TIME...MOT...LOC 1916Z 237DEG 11KT 3023 8981
WATERSPOUT AND FUNNEL CLOUDS...POSSIBLE
MAX HAIL SIZE...0.00 IN
MAX WIND GUST...40 MPH
KLGThe Hammond radar (KHDC), 94 km away, was scanning. The volume nearest the first event began at 19:18 UTC.
10 flash flood. Local standard time, as filed.
Water over roads and road closures. Specific location mentioned was Jourdan River Shores. May be a combination of heavy rains on top of coastal flooding.
Road flooded on Kiln-Delisle Road near Interstate 10 interchange.
Flooded road on Woodridge Lane 2 miles east of Picayune.
Freddie Frank Road near Owl Roost Road is impassable due to flooding.
West Maple Road was impassable due to flooding.
Hutter Road was reported as impassable due to flooding.
Flooded roads in Pass Christian up to 6 inches deep.
Flooding on Hwy 90 in Long Beach up to 6 inches deep.
Flooded roads in Long Beach. Flooding was up to 6 inches deep.
An off-duty NWS employee reported knee deep water on Citizen Street in Bay Saint Louis.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Mississippi in 2026Every state in 2026This day in weather historyWarnings in Mississippi, June 2026
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 1344725, 1344730, 1344734, 1344737, 1344741, 1344755, 1344748, 1344750, 1344751, 1344754.