Redondo Beach, WA
CATEGORY 4
WHAT
A moderate coastal flood risk is likely due to higher evening tides nearing 19.7 ft along with notably low barometric pressure around 993 hPa. While it is not expected to cause major property damage, nuisance flooding of some low-lying areas is possible.
WHEN
Peak concern is around the evening high tide, from approximately 8:00 PM to 10:00 PM local time.
IMPACTS
• Water may cover some low-lying roads, beach parking areas, and portions of parks.
• Minor impacts possible near vulnerable shorelines.
Historical comparisons show that a tide height near 19 ft combined with pressure close to 992–993 hPa has previously correlated with Category 4 events (for example, on 01/07/2022). Winds are not forecast to be particularly strong, reducing the extent of any flooding. Nonetheless, vigilance is advised in typical low-lying trouble spots.
CATEGORY 3
WHAT
Tides will again rise to around 19.8 ft in the evening, but with a higher barometric pressure near 1000 hPa. Morning pressure is briefly lower (about 989 hPa) but occurs with a lesser tide height near 16–17 ft. Overall, conditions are close to a flood event but are not anticipated to produce significant flood damage.
WHEN
Highest tide of concern arrives in the late evening, roughly 9:00 PM to 10:00 PM local time.
IMPACTS
• Minimal inundation possible, mostly affecting very low-lying areas.
• Little to no property damage is expected.
While the barometric pressure dips significantly in the early morning, the corresponding tide is not remarkably high. Conversely, the evening tide is higher but is paired with more moderate pressure (about 1000 hPa). These factors place overall flood potential closer to historically observed Category 3 conditions.
CATEGORY 3
WHAT
An evening high tide near 19.8 ft combines with moderately low barometric pressure around 998 hPa. This setup is close to minor flood thresholds. Flooding risk remains notable but is not expected to be severe.
WHEN
Main concern is centered around the late evening high tide, from about 9:30 PM to 10:30 PM local time.
IMPACTS
• Possible minor flooding in typical flood-prone zones.
• No major property damage anticipated.
Although Day 3 tides approach 20 ft, the barometric pressure is not as low as on Day 1, reducing the severity. Historical data (e.g., 12/27/2023) shows that comparable tides with comparable or slightly higher pressure align with Category 3 events rather than more severe categories.
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.
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.