Flood Watch

Redondo Beach, WA

Day 1: 2025-06-21

CATEGORY 3

WHAT
Moderate high tide (peaking near 17.06 ft) coupled with a somewhat low barometric pressure (near 1002 hPa) makes conditions close to a flood event. Minor flooding in very low-lying areas is possible; however, no significant damage is anticipated.

WHEN
Highest tide risk around 14:24 local time.

IMPACTS
• Minor flooding in low-lying coastal areas or on roads especially near the shoreline.
• Little to no property damage is expected.

ADDITIONAL DETAILS...

Based on comparisons with the 12/27/2023 Category 3 event (tide ~17.46 ft, pressure ~1006 hPa), today’s slightly lower barometric pressure balances the marginally lower tide height. Overall, this places the day’s flood potential in the Category 3 range, meaning it is close to a flood event and worth monitoring, but significant damage is unlikely. NOAA flood likelihood data is not available for this time period.

Day 2: 2025-06-22

CATEGORY 3

WHAT
Tides reaching about 18.21 ft in the afternoon, combined with a barometric pressure near 1001.5 hPa, continue to pose a moderate flood potential. While the tide is higher than Day 1, it remains below thresholds linked to major property damage.

WHEN
Highest tide risk near 15:36 local time.

IMPACTS
• Minor tidal overflow in some vulnerable spots.
• Little to no impact on structures.

ADDITIONAL DETAILS...

Although the tide is higher than on Day 1, it remains well below the ~20+ ft range often associated with Category 4 events. The barometric pressure is not exceptionally low. Therefore, this scenario most closely aligns with historical Category 3 events. No NOAA flood likelihood metric is available for additional corroboration.

Day 3: 2025-06-23

CATEGORY 4

WHAT
An even higher tide (near 19.17 ft) with a lower barometric pressure around 998.4 hPa could lead to notable flooding. While not as extreme as Category 5 or above, flooding is likely, and some property damage cannot be ruled out.

WHEN
Peak water levels expected around 16:36 local time.

IMPACTS
• Flooding of low-lying coastal roads and exposed property.
• Some property damage in especially flood-prone areas is possible.

ADDITIONAL DETAILS...

This forecast compares closely with past Category 4 conditions (e.g., 01/07/2022, with a similar high tide near 19 ft but slightly lower pressure). The combined effect of approaching 19 ft tides and barometric pressure below 1000 hPa elevates the risk above Category 3, but still below the more severe Category 5 threshold (typically observed near 20+ ft tides with significantly lower pressure). NOAA CO-OPS does not provide flood likelihood data for this timeframe, so the projection relies on historical parallels and the measured meteorological parameters.

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.