Redondo Beach, WA
CATEGORY 3
WHAT
Minor coastal flooding is not expected, but conditions are close enough to normal flood thresholds to warrant monitoring. The evening high tide will reach approximately 18.5 ft under a barometric pressure around 1006.9 hPa.
WHEN
Highest potential near the time of the evening high tide, from about 7:00 PM to 9:00 PM PST on 2025-04-17.
IMPACTS
Because the barometric pressure remains well above the 992.8 hPa range typically associated with more serious flood events, widespread property damage is not anticipated. Some very low-lying areas near the shore could see minor ponding, but damaging floods are unlikely.
• NOAA’s official flood likelihood remains low for 2025-04-17.
• Wind speeds are moderate and from the NW/NNW, which can mildly push water onshore, but not enough to raise the risk beyond Category 3.
• Historically, similar tide heights with a comparable or higher barometric pressure have led to near-flood conditions rather than full flooding.
CATEGORY 3
WHAT
Tides will again rise to near 18.3 ft under a slightly higher barometric pressure of about 1007.2 hPa. Conditions remain near but below the threshold for minor coastal flooding.
WHEN
Main concern is around the 8:30 PM to 10:30 PM PST window on 2025-04-18, when the high tide peaks.
IMPACTS
Significant flooding is not expected. Low-lying coastal areas may need routine monitoring, though no major impacts are currently anticipated.
• NOAA’s analysis for 2025-04-18 also indicates a low flood likelihood.
• Wind direction and speeds do not suggest a large storm surge.
• Compared to historical Category 4 events, these tide levels are lower and the barometric pressure is higher, keeping the flood potential in the moderate (Category 3) zone.
CATEGORY 3
WHAT
High tide will reach approximately 18.2 ft, with barometric pressure around 1004.8 hPa, which is slightly lower than the previous days but still not near the historically critical low-pressure ranges.
WHEN
Highest tides from roughly 9:00 PM to 11:00 PM PST on 2025-04-19.
IMPACTS
Minor inundation could occur in the most vulnerable coastal spots, but overall flooding that causes damage is unlikely.
• NOAA’s forecast for 2025-04-19 remains at a low likelihood of flooding.
• Though the pressure is modestly lower, it is still well above the 992.8 hPa threshold often correlated with greater flood risks.
• Historical Category 3 events have shown similar or slightly higher tide heights with comparable barometric pressures, leading to near-flood conditions but generally not resulting in damage.
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.