Flash Flood Warning Issued for Martin and St. Lucie Counties, FL

Source: NOAA · East Central Florida

If you are in immediate danger, call emergency services now.

For real-time, official alerts and instructions for your exact location, check weather.gov (US), weather.gc.ca (Canada), the Met Office (UK), or the Bureau of Meteorology (Australia) as applicable. This article is a data summary, not a substitute for the issuing agency's live warning.

Areazine synthesizes this NWS weather alert directly from NOAA's official public data feed. See our methodology for full source attribution and refresh cadence.

NWS Melbourne has issued a Flash Flood Warning for northeastern Martin County and southeastern St. Lucie County in Florida until 10:00 PM EDT on August 23, 2026.

Read this weather record in 30 seconds

Record type
Flash Flood Warning
Affected area
East Central Florida
Issued
August 23, 2026
Issuing authority
NWS Melbourne FL

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: publication date is recent, but current status is not stored on this page. Check the issuing agency's live warning service before acting because warnings can be updated, narrowed, or cancelled.

Alert Details

A Flash Flood Warning (event code FFW) has been issued by the National Weather Service Melbourne FL. The alert is effective from August 23, 2026 at 7:05 PM EDT until August 23, 2026 at 10:00 PM EDT. Severity is listed as Severe with immediate urgency and likely certainty.

Affected Areas

The warning covers northeastern Martin County and southeastern St. Lucie County in east central Florida. Specific locations that will experience flash flooding include Walton, Stuart, Jensen Beach, Nettles Island, North River Shores, Indian River Estates, Ocean Breeze Park, Waveland, Rio and Hutchinson Island South.

What You Should Do

Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles.

Expected Conditions

At 7:05 PM EDT, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Between 2 and 4 inches of rain have fallen with additional rainfall amounts of 0.5 to 2 inches possible. Flash flooding is ongoing or expected to begin shortly.

Timeline

The Flash Flood Warning is in effect from 7:05 PM EDT to 10:00 PM EDT on August 23, 2026.

Original source: NOAA Official Notice ↗

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.

Frequently Asked Questions

Common questions about this NWS weather alert.

What is this NWS weather alert about?
NWS Melbourne has issued a Flash Flood Warning for northeastern Martin County and southeastern St. Lucie County in Florida until 10:00 PM EDT on August 23, 2026.
Which agency issued this alert?
This alert was issued by NOAA. The original notice is available at the source link at the bottom of this article.
How severe is this alert?
This alert is classified as "high" severity. Take precautions and monitor for updates.
What area is affected?
This alert affects East Central Florida. Check with NOAA for the most current geographic scope.
Where can I find more Weather Alerts updates?
Browse the full Weather Alerts feed on Areazine at areazine.com/weather/ for the latest updates from NOAA and other agencies.