Alert archive / Mississippi / Flash Flood Warnings in 2026

Flash Flood Warning 52, NWS New Orleans, LA

June 6, 2026Hancock County, Harrison County, Pearl River County, Mississippi

NWS New Orleans, LA issued this flash flood warning at Jun 6, 2026, 1:19 PM CDT for Hancock County, Harrison County, Pearl River County, Mississippi. It was in force for 5 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
Jun 6, 2026, 1:19 PM CDT (18:19 UTC)
Expired
Jun 6, 2026, 6:15 PM CDT
In force
5 hr
Issued by
NWS New Orleans, LA
Area
Storm-based polygon
Flood severity
None

Counties Hancock County, MS, Harrison County, MS, Pearl River County, MS

The radar

The Hammond radar (KHDC), 98 km from the middle of the area, began a volume at 18:22 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, 6.3 hours before the alert went out and 43 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-pSkew-T log-p diagram, Slidell Radar S, LA at 12:00Z on 2026-06-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1103 joules per kilogram.LCLEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Slidell Radar S, LA at 12:00Z on 2026-06-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 29 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
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
1103 J/kg
Mixed-layer CIN
-1 J/kg
Mixed-layer LCL
494 m above ground
0-6 km bulk shear
10 kt
0-1 km storm-relative helicity
29 m²/s²
0-3 km storm-relative helicity
18 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

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 Jun 6, 5:29 AM CDT, 7 hours 50 minutes earlier. Its 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.
Area forecast discussion, Jun 6, 5:29 AM CDT, 7 hours 50 minutes before
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

In the hours before

Special weather statement, Jun 6, 12:42 PM CDT, 37 minutes before
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

KLG
Special weather statement, Jun 6, 1:16 PM CDT, 3 minutes before
Special 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

KLG

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 6, 10:46 AM CDTCoastal Flood AdvisoryLIXLivingston, Saint Charles, Saint John the Baptist, Tangipahoa23 hr
Jun 6, 12:42 PM CDTSpecial Weather StatementLIXSaint Charles33 min
Jun 6, 1:21 PM CDTSpecial Marine WarningLIX54 min
Jun 6, 1:31 PM CDTAreal Flood AdvisoryLIXJefferson, Saint Charles3 hr
Jun 6, 1:38 PM CDTFlash Flood WarningLIXSaint Tammany, Washington5 hr
Jun 6, 1:41 PM CDTSpecial Marine WarningLIX49 min
Jun 6, 1:59 PM CDTAreal Flood AdvisoryLIXSaint Tammany11 min
Jun 6, 2:10 PM CDTFlash Flood WarningLIXSaint Tammany4 hr
Jun 6, 2:17 PM CDTSpecial Weather StatementLIXOrleans43 min
Jun 6, 2:57 PM CDTSpecial Weather StatementLIXSaint James33 min
Jun 6, 5:17 PM CDTSpecial Marine WarningLIX88 min
Jun 6, 5:18 PM CDTSpecial Marine WarningLIX87 min
Jun 6, 6:42 PM CDTSpecial Marine WarningLIX2 hr
Jun 6, 10:26 AM CDTRiver Flood WarningLIXHarrison61 hr
Jun 6, 10:30 AM CDTRiver Flood WarningLIXHarrison52 hr
Jun 6, 12:02 PM CDTAreal Flood AdvisoryLIXHancock, Harrison77 min
Jun 6, 1:16 PM CDTSpecial Weather StatementLIXPearl River29 min
Jun 6, 1:33 PM CDTAreal Flood AdvisoryLIXHancock, Pearl River5 min
Jun 6, 1:42 PM CDTSpecial Weather StatementLIXHancock33 min
Jun 6, 3:44 PM CDTFlash Flood WarningLIXHarrison3 hr
Jun 6, 4:25 PM CDTAreal Flood AdvisoryLIXWilkinson3 hr
Jun 6, 4:41 PM CDTRiver Flood WarningLIXPearl River43 hr
Jun 6, 4:42 PM CDTRiver Flood WarningLIXPearl River44 hr
Jun 6, 6:44 PM CDTFlash Flood WarningLIXHarrison4 hr

Nearby

Flash Flood Warnings in Mississippi, 2026Every 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.