Redondo Beach, WA
CATEGORY 4
WHAT
A late-evening high tide near 19.72 ft coinciding with notably low barometric pressure around 993 hPa indicates a moderate risk of coastal flooding, though major property damage is not anticipated.
WHEN
Highest concern from approximately 6:00 PM through 10:00 PM PDT, focused around the 8:54 PM–9:00 PM window when tides peak.
IMPACTS
Minor inundation of low-lying coastal areas is possible. Some shoreline roads or parking areas could briefly flood, but widespread property damage is unlikely.
Compared to historical Category 4 events—such as 12/18/2024 (20.586 ft tide, ~1016 hPa)—this tide is slightly lower but coupled with significantly lower pressure. This combination justifies a Category 4 rating due to the moderate flood risk. Winds appear relatively modest and should not exacerbate surge conditions beyond localized impacts.
CATEGORY 3
WHAT
An evening high tide around 19.77 ft with barometric pressure near 999 hPa is expected. Flooding potential is lower than on Day 1 due to higher pressure and a comparable but still sub-20 ft tide.
WHEN
Primary time of interest is between 7:00 PM and 10:00 PM PDT, centered on the approximate 9:30 PM tide peak.
IMPACTS
Close to flood thresholds, but impacts should remain minimal. Minor water on adjacent shore roads is possible, yet significant flood damage is unlikely.
Though the tide height is similar to Day 1, the higher barometric pressure reduces the likelihood of flooding. Historical comparisons support a Category 3 classification (i.e., worth monitoring but unlikely to result in meaningful property damage).
CATEGORY 3
WHAT
An expected high tide near 19.80 ft late in the evening, paired with barometric pressure around 998 hPa, keeps conditions near the watch threshold but still below major flood criteria.
WHEN
Key period of concern runs from around 8:00 PM to midnight PDT, peaking near 10:06 PM–10:12 PM for the highest coastal water levels.
IMPACTS
Similar to Day 2, tidal levels may briefly affect low-lying shore areas. Any flooding should be minor and not likely to cause property damage.
In historical context, these tide heights are below 21 ft, and while pressures are moderately low, they remain higher than the most extreme flood events on record. As with Day 2, limited water encroachment could occur, but extensive flooding is not anticipated.
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.