Flood Watch

Redondo Beach, WA

Day 1: 2025-09-17

CATEGORY 2

WHAT
No risk of flooding is anticipated for Wednesday. While the midday high tide reaches around 19.0 ft, the barometric pressure is relatively high (about 1018.8 hPa), and NOAA's likelihood of flooding is reported as 0%. These factors indicate that coastal flooding is very unlikely.

WHEN
Highest tidal levels will occur around midday to mid-afternoon (approximately 1 PM to 4 PM PST).

IMPACTS
No notable flooding is expected. Minor ponding in extremely low-lying areas is possible but should not pose a threat to property or travel.

ADDITIONAL DETAILS...

• Compared to historical Category 3 or higher events, both the tide height and barometric pressure do not align with previous flood thresholds.
• NOAA’s flood likelihood data further confirms a low risk for the day.


Day 2: 2025-09-18

CATEGORY 2

WHAT
No risk of flooding is expected on Thursday. Although the tide could reach near 19.2 ft in the mid-afternoon, the barometric pressure remains above 1015 hPa, significantly higher than typical low-pressure flood events in the past.

WHEN
The highest tide occurs from about 1 PM to 4 PM PST.

IMPACTS
No substantial impacts are anticipated. Coastal inundation or road closures are highly unlikely.

ADDITIONAL DETAILS...

• Historically, coastal flooding has been associated with tide levels over 20 ft combined with a notably low barometric pressure (< 993 hPa); neither condition is met.
• NOAA’s data for this date also indicates a 0% flood likelihood.


Day 3: 2025-09-19

CATEGORY 2

WHAT
No risk of flooding is forecast for Friday. Though afternoon tides approach 19.2–19.3 ft, the barometric pressure is around 1012.7 hPa—still well above the critical low-pressure benchmarks seen in past flooding events.

WHEN
Higher tide levels peak roughly between 2 PM and 5 PM PST.

IMPACTS
No property damage or road closures are expected. Very minor water pooling in especially low-elevation coastal spots cannot be ruled out but should remain inconsequential.

ADDITIONAL DETAILS...

• Even though the pressure is slightly lower than preceding days, it remains significantly above the threshold historically associated with flood events.
• NOAA’s reported 0% flood likelihood aligns with these findings.


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.