Flood Watch

Redondo Beach, WA

Day 1: 2025-09-01

CATEGORY 3

WHAT
Coastal water levels will be elevated, approaching but not likely exceeding flood thresholds. While tides may reach around 17.5 ft in the early afternoon, overall flood damage is unlikely.

WHEN
From late morning through mid-afternoon, peaking near midday high tide.

IMPACTS
Minor ponding could occur along very low-lying shoreline areas, but significant flooding of roads or property damage is not expected.

ADDITIONAL DETAILS...

• The highest tide observed will be around 17.4–17.5 ft, similar to the historical event on 12/27/2023 (Category 3) in terms of tide height.
• Barometric pressure will remain above 1000 hPa, reducing the severity of any potential coastal flooding.
• NOAA’s latest forecast indicates a 0% flood likelihood for 2025-09-01, reflecting minimal overall risk.


Day 2: 2025-09-02

CATEGORY 3

WHAT
High tides are forecast to approach 18.0 ft, warranting monitoring but remaining below typical major-flood thresholds. Flooding impacts are unlikely under current conditions.

WHEN
Mainly near the mid-afternoon high tide (around 3:00 PM local time).

IMPACTS
Low-lying areas along the immediate shoreline may experience brief water encroachment, but notable property or roadway flooding is not anticipated.

ADDITIONAL DETAILS...

• Expected peak tide near 17.9–18.0 ft places water levels between historical Category 3 and Category 4 events; however, barometric pressure near 1006 hPa is not low enough to enhance flood risk significantly.
• NOAA reports 0% flood likelihood for 2025-09-02.
• Winds are generally light to moderate and from a less impactful direction for surge.


Day 3: 2025-09-03

CATEGORY 3

WHAT
Coastal water levels could briefly approach 18.4 ft in the afternoon. With pressure around 1001–1002 hPa (still not exceptionally low), the event is worth watching but remains unlikely to produce damaging floods.

WHEN
Greatest tidal heights are expected in mid-afternoon (around 3:30 PM local time).

IMPACTS
Short-term minor flooding of very low-lying coastal paths or parks is possible, but widespread flooding or property impacts are not forecast.

ADDITIONAL DETAILS...

• Although 18.4 ft is moderately high, pressure is well above the historically significant low range (~992 hPa) that has contributed to higher-category flood events.
• NOAA assigns a 0% flood likelihood for 2025-09-03.
• Compared to historical Category 4 or 5 events, these forecast conditions remain less severe overall.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

You should monitor later forecasts and be alert for possible Flood Warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop.

CATEGORY KEY

Categories 1-2: No risk of flooding.
Category 3: Close to a flood event and worth monitoring.
Category 4: Flooding is likely however, it is uncertain if this will cause major property damage.
Category 5: Likely to flood and cause property damage.
Categories 6-7: Extremely high risk of flooding and property damage.