Redondo Beach, WA
CATEGORY 4
WHAT
Flooding is likely around times of peak high tide, but not expected to cause major property damage. Coastal edges and low-lying roads may experience moderate water encroachment.
WHEN
From early morning through mid-morning (around 05:30 AM – 09:00 AM PST) when tides exceed ~20.6 ft.
IMPACTS
• Minor to moderate inundation along low-lying coastal areas.
• Possible short-term closures of roads immediately adjacent to water.
• Standing water in parking areas and neighborhood docks during peak tide.
Analysis suggests the morning high tide reaches approximately 20.6 ft with barometric pressure near 1006 hPa. Compared to past Category 4 events (e.g., 12/18/2024 with a 20.58 ft tide and higher pressure of 1016 hPa), this event’s lower pressure combined with similar tide height makes flooding likely, though not severe. NOAA’s Flood Likelihood is around 14.3%, which exceeds the 10% observed during some historical Category 4 events, reinforcing the moderate flood risk.
CATEGORY 4
WHAT
Moderate coastal flooding is likely again, with higher flood probabilities than Day 1. No major damage is anticipated, but continued vigilance is advised.
WHEN
Peak flooding risk in the morning through midday high tide window (about 06:00 AM – 10:00 AM PST) where tides approach or exceed ~20.8 ft.
IMPACTS
• Continuing moderate flooding of roads and parking lots adjoining the waterfront.
• Potential partial closures of shoreline pathways.
• Boat ramps and marinas may see water reaching or exceeding normal limits.
Tide heights near 20.8 ft coincide with barometric pressure ~1008 hPa. Although this tide height is just under the 21+ ft often linked to higher-impact floods, NOAA’s Flood Likelihood (25.4%) is quite elevated relative to historical moderate-flood benchmarks, supporting a Category 4 designation.
CATEGORY 4
WHAT
Likely coastal flooding with a continued moderate risk. Conditions remain similar to Days 1 and 2, with slightly higher tidal peaks but somewhat higher atmospheric pressure.
WHEN
Peak tide inundation from early morning to late morning (around 07:00 AM – 11:00 AM PST) with tides nearing ~20.9 ft.
IMPACTS
• Limited yet noticeable flooding in low-lying waterfront areas, though unlikely to cause major structural damage.
• Possible road spray or minor ponding, especially during the peak tide.
• Nuisance flooding in areas historically prone to minor water intrusion.
Although the tide may slightly exceed 20.8–20.9 ft, barometric pressure is forecast near 1016 hPa, which typically lowers overall severity. However, NOAA’s Flood Likelihood is still high (23.7%). Compared with earlier Category 4 events (such as 12/18/2024), the slightly lower pressure (and notably higher NOAA flood percentage) continue to support Category 4 conditions.
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.