Alert archive / Louisiana / Flash Flood Warnings in 2026

Flash Flood Warning 112, NWS New Orleans, LA

September 4, 2026Jefferson Parish, Orleans Parish, Louisiana

NWS New Orleans, LA issued this flash flood warning at Sep 4, 2026, 6:22 AM CDT for Jefferson Parish, Orleans Parish, Louisiana. It was in force for 3 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: Sep 4, 2026, 6:22 AM CDT (11:22 UTC)
Expired: Sep 4, 2026, 9:00 AM CDT
In force: 3 hr
Issued by: NWS New Orleans, LA
Area: Storm-based polygon
Flood severity: None

Counties Jefferson Parish, LA, Orleans Parish, LA

The radar

The Hammond radar (KHDC), 81 km from the middle of the area, began a volume at 11:24 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 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 Sep 4, 3:16 AM CDT, 3 hours 6 minutes earlier.

Area forecast discussion, Sep 4, 3:16 AM CDT, 3 hours 6 minutes before

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In the hours before

Special weather statement, Sep 4, 4:18 AM CDT, 2 hours 4 minutes before

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        The site you requested is temporarily down for maintenance or an unexpected outage.
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Special weather statement, Sep 4, 4:49 AM CDT, 1 hour 33 minutes before

Special Weather Statement
National Weather Service New Orleans LA
449 AM CDT Fri Sep 4 2026

LAZ076-079-080-MSZ086-041015-
Southwestern St. Tammany LA-Northern St. Tammany LA-Southeast St.
Tammany LA-Southern Hancock MS-
449 AM CDT Fri Sep 4 2026

...A STRONG THUNDERSTORM WILL IMPACT SOUTHWESTERN HANCOCK COUNTY AND
SOUTHEASTERN ST. TAMMANY PARISH UNTIL 515 AM CDT...

At 449 AM CDT, Doppler radar was tracking a strong thunderstorm 5
miles east of Slidell, moving west 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.

The strong thunderstorm will be near...
  Pearlington around 450 AM CDT.
  Slidell and Pearl River around 500 AM CDT.

Other locations impacted by this strong thunderstorm include Slidell
Airport.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the weather situation closely and be alert for threatening
weather conditions.

Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

&&

LAT...LON 3025 8993 3041 8989 3031 8960 3019 8962
      3020 8982 3023 8987 3022 8988 3022 8994
TIME...MOT...LOC 0948Z 103DEG 24KT 3026 8970

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

Zeringue

Special weather statement, Sep 4, 5:20 AM CDT, 1 hour 2 minutes before

Special Weather Statement
National Weather Service New Orleans LA
520 AM CDT Fri Sep 4 2026

LAZ076-079-080-041100-
Northern St. Tammany LA-Southeast St. Tammany LA-Southwestern St.
Tammany LA-
520 AM CDT Fri Sep 4 2026

...A STRONG THUNDERSTORM WILL IMPACT SOUTH CENTRAL ST. TAMMANY PARISH
UNTIL 6 AM CDT...

At 520 AM CDT, Doppler radar was tracking a strong thunderstorm 5
miles northeast of Lacombe, or 6 miles northwest of Slidell, moving
west at 20 mph.

HAZARD...Wind gusts up to 40 mph.

SOURCE...Radar indicated.

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

The strong thunderstorm will be near...
  Slidell around 525 AM CDT.
  Abita Springs around 555 AM CDT.

Other locations impacted by this strong thunderstorm include Slidell
Airport.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the weather situation closely and be alert for threatening
weather conditions.

Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

&&

LAT...LON 3034 9009 3049 9003 3036 8979 3023 8985
      3027 9000 3029 9001
TIME...MOT...LOC 1020Z 103DEG 18KT 3035 8986

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

Zeringue

The office that day

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

Issued	Product	Office	Counties	Lasted
Sep 4, 4:49 AM CDT	Special Weather Statement	LIX	Saint Tammany	26 min
Sep 4, 5:20 AM CDT	Special Weather Statement	LIX	Saint Tammany	40 min
Sep 4, 5:57 AM CDT	Areal Flood Advisory	LIX	Jefferson, Orleans	26 min
Sep 4, 8:38 AM CDT	Special Marine Warning	LIX		97 min
Sep 4, 9:43 AM CDT	Areal Flood Advisory	LIX	Saint Tammany, Washington	3 hr
Sep 4, 4:18 AM CDT	Special Weather Statement	LIX	Hancock	27 min
Sep 4, 10:39 AM CDT	Flash Flood Warning	LIX	Pearl River	3 hr

Nearby

Flash Flood Warnings in Louisiana, 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; radar from the NEXRAD Level II archive.