Flood Warning Issued for St. Tammany LA and Southern MS
This alert is no longer in effect.
NOAA issued it on July 23, 2026, 4 weeks ago. Warnings of this kind stay in effect for hours to a few days, so this page is a historical record of what was issued, not a current warning. For conditions where you are right now, check weather.gov (US), weather.gc.ca (Canada), the Met Office (UK), or the Bureau of Meteorology (Australia).
Areazine synthesizes this NWS weather alert directly from NOAA's official public data feed. See our methodology for full source attribution and refresh cadence.
A Flood Warning is in effect until 6:30 PM CDT for southeastern St. Tammany Parish and southern Mississippi counties due to excessive rainfall causing flooding.
Read this weather record in 30 seconds
- Record type
- Flood Warning
- Affected area
- Southeastern Louisiana and Southern Mississippi
- Issued
- July 23, 2026
- Issuing authority
- NWS New Orleans LA
Flood notices turn on location and timing. Treat the named area as this record's scope; do not assume nearby counties, parishes, or waterways were included.
Record status: historical. It was issued 4 weeks ago; use the issuing agency's live warning service for current conditions in Southeastern Louisiana and Southern Mississippi.
Alert Details
Flood Warning issued by NWS New Orleans LA. Effective from June 18 at 3:33 PM CDT until June 18 at 6:30 PM CDT.
Affected Areas
Southeastern St. Tammany Parish in southeastern Louisiana; Hancock County, Harrison County, and southeastern Pearl River County in southern Mississippi. Specific locations include Slidell, Picayune, Bay St. Louis, Waveland, Diamondhead, Eden Isle, Pearl River, Kiln, Stennis Space Center, Shoreline Park, Mcneil, Pearlington, Lyman, Saucier, and Slidell Airport. A Flash Flood Emergency remains in effect for areas near Anchor Lake.
What You Should Do
Turn around, don't drown when encountering flooded roads. Stay away from river banks and culverts as they can become unstable. Report observed flooding to local emergency services or law enforcement.
Expected Conditions
Urban areas, creeks and rivers flooding caused by excessive rainfall is occurring. Between 8 and 14 inches of rain have fallen. Flooding of rivers, creeks, streams, and low-lying areas is imminent or occurring. Several structures are flooded and streams continue to rise. No additional rainfall is expected.
Timeline
The warning is effective until 6:30 PM CDT on June 18, 2026.
Original source: NOAA Official Notice ↗
Related Weather Alerts
All Weather Alerts →Nationwide notices with similar length or severity timing 8
Two Areazine-derived peer sets for this NWS weather alert: nearest notices by body length and by same severity near the same agency date. Peers come from other categories so they are not the same-feed Related list above.
Similar body length
Nearest notices by article body length (1,214 characters here).
Similar severity timing
Same severity (high) notices issued closest in time to July 23, 2026.
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Common questions about this NWS weather alert.