County storm facts

Storm prep for Orleans Parish residents

Orleans Parish has had 127,255 flood insurance claims since 1978, 32 federal disaster declarations for fires, storms, floods or mudslides since 1998, and 4 mapped wildfires that started here since 2021.

Local data from official sources, updated weekly. This snapshot: September 29, 2026. Alerts load live from the National Weather Service when you open this page.

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Source: National Weather Service alerts.

Forecasts for this county (NWS county zone LAC071) come from:

Source: National Weather Service (the exact query), data as of September 29, 2026.

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Hurricane evacuation zone

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Recent burn areas

4 fires that started in Orleans Parish since January 1, 2021 have a mapped perimeter, covering 249 acres in all.

Largest

FireYearAcres
Roost Canal Fire2023188
Antoinne202654
Irish Bayou Fire20244

Acres are each fire’s whole mapped area, which can reach past the county line.

Burned ground soaks up less rain, so water can run off faster than usual in a heavy storm. Watch for flood warnings when heavy rain is forecast.

Source: NIFC WFIGS Interagency Fire Perimeters (the exact query), data as of September 29, 2026.

Flood history

127,255 flood insurance claims have been filed in Orleans Parish since 1978. 4,829 of them were for floods from 2017 to 2026.

The years with the most claims: 2005 (71,538), 1995 (13,842), 1983 (5,521).

This is history, not a prediction. These are National Flood Insurance Program claims, so they only count insured buildings.

FEMA’s data runs through September 8, 2026.

Source: FEMA OpenFEMA, NFIP Redacted Claims (the exact query), data as of September 29, 2026.

Federal disaster declarations

Orleans Parish has been part of 32 federal disaster declarations for fires, storms, floods or mudslides since 1998: 0 for fires and 32 for storms, floods or mudslides.

Most recent

  • Severe Winter StormJanuary 24, 2026 · EM-3638-LA
  • Hurricane FrancineSeptember 16, 2024 · DR-4817-LA
  • Tropical Storm FrancineSeptember 10, 2024 · EM-3614-LA

FEMA’s ids start with DR for a major disaster, EM for an emergency and FM for fire management.

Source: FEMA OpenFEMA, Disaster Declarations Summaries (the exact query), data as of September 29, 2026.

Landslide-prone ground

USGS maps about 8% of Orleans Parish as ground susceptible to landslides.

This is a county-wide figure, not a rating for your spot. Steep slopes, road cuts and burned hillsides above you matter most in heavy rain.

From the USGS U.S. Landslide Inventory and Susceptibility data release (2024). Susceptible ground is terrain steep and high enough for landslides like those mapped in similar places. The inventory counts only slides someone mapped, and some states map few, so a low count doesn’t mean the ground is stable.

Source: USGS landslide susceptibility, county table (the exact query), data as of September 29, 2026.

Rain in past strong El Niño winters

October–March rainfall at the New Orleans Audubon weather station in past strong El Niño winters, compared with its 1991–2020 normal.

Oct–Mar rainfall in past strong El Niño winters, as % of the 1991–2020 normal — New Orleans Audubon

50%150%200%100%110%’57–58144%’72–73123%’82–83136%’91–92186%’97–98116%’15–16168%’23–24
Chart. Filled dots: at or above normal; open dots: below. Dashed line: 100% of normal. Driest: 1957-58 at 110% of normal. Wettest: 1997-98 at 186% of normal. 1991–2020 Oct–Mar normal: 26.44 inches. NOAA NCEI normals.

7 of the 7 strong El Niño winters on record at New Orleans Audubon were wetter than normal. They ranged from 110% of normal (1957-58) to 186% (1997-98) — a tendency, not a guarantee.

New Orleans Audubon: Oct–Mar rainfall, strong El Niño winters — data table
WinterONI (DJF)Oct–Mar total% of normalSource
1957-581.6929.10 in110%NOAA NCEI daily precipitation
1972-731.5537.98 in144%NOAA NCEI daily precipitation
1982-832.1432.61 in123%NOAA NCEI daily precipitation
1991-921.5435.92 in136%NOAA NCEI daily precipitation
1997-982.2249.27 in186%NOAA NCEI daily precipitation
2015-162.5030.59 in116%NOAA NCEI daily precipitation
2023-241.8444.41 in168%NOAA NCEI daily precipitation

2015-16 is totaled from 174 of 183 days (NCEI has no reading for the rest).

Source: NOAA NCEI (the exact query), data as of September 29, 2026.

Local help

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What about your street?

County numbers can’t tell you about your home. Check your address against the official flood, fire and landslide maps and live warnings.