Flood Watch

Redondo Beach, WA

Day 1: 2025-05-20

CATEGORY 2

WHAT
No significant risk of coastal flooding is expected on May 20. Tidal levels will peak around 19 feet, which is below the higher thresholds seen in past Category 3 and 4 events. NOAA’s flood likelihood for this date remains at 0%.

WHEN
No specific high-risk window is anticipated. The evening high tide near 23:42 local time shows a tide height of about 19 ft with a relatively moderate barometric pressure of ~1014 hPa.

IMPACTS
No flooding impacts are expected. Shorelines and low-lying areas should remain unaffected, with no anticipated road closures.

ADDITIONAL DETAILS...

• While the predicted tide height is somewhat elevated, historical comparisons show significantly lower pressure levels or higher tides are typically needed to trigger at least a Category 3 event.
• Past Category 3 floods featured tide heights around or above 20 ft combined with lower barometric pressures (<1006 hPa) and higher NOAA flood likelihood scores. These conditions are not met on May 20.


Day 2: 2025-05-21

CATEGORY 2

WHAT
No notable coastal flood risk is forecast. The midday high tide near 11:18 is below critical flood thresholds, and barometric pressure remains comfortably above severe-weather levels. NOAA continues to forecast a low flood likelihood of 0%.

WHEN
No identified period of elevated flood threat.

IMPACTS
No flooding is expected. Minimal to no impact on daily activities or coastal infrastructure.

ADDITIONAL DETAILS...

• The highest tide on May 21 is expected to be around mid-day (15–15.5 ft range), with a barometric pressure of ~1013 hPa, which is not indicative of a low-pressure scenario.
• Historical Category 3 or higher events typically require tides at or above 20 ft and significantly lower pressures. Current data do not align with those conditions.


Day 3: 2025-05-22

CATEGORY 2

WHAT
Again, little to no coastal flooding concern under the forecast conditions. Although the early-morning tide may briefly approach 19 ft, the accompanying barometric pressure (above 1015 hPa) reduces any significant risk. NOAA’s forecasted flood likelihood is 0%.

WHEN
No critical high-risk window on May 22.

IMPACTS
No flooding impacts are anticipated for local shorelines, roads, or infrastructure.

ADDITIONAL DETAILS...

• The maximum tide of approximately 19.4 ft occurs around 00:18 with relatively high barometric pressure (~1018 hPa).
• Compared to historical high-category events, these tide heights and pressures remain well below the levels associated with property-damaging floods.


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.