Redondo Beach, WA
CATEGORY 3
WHAT
Minor coastal flooding is not ruled out, but significant property damage is unlikely. Projected tide heights may reach around 19.4–19.5 feet during the afternoon/early evening, which is above normal; however, barometric pressure around 1004 hPa remains higher than the historical low-pressure flood events, reducing the overall risk.
WHEN
Highest concern is from approximately 2:00 PM to 6:00 PM PST on 2025-08-22, around the time of peak high tide (about 5:18–5:24 PM).
IMPACTS
• Minor inundation along the immediate shoreline is possible.
• Low-lying roads and parking areas near the shoreline could experience brief standing water.
• No major property damage is expected given the moderate atmospheric pressure and low NOAA flood likelihood (0%).
The historic Category 4 events generally involved lower barometric pressure (often below 1002 hPa) and/or higher tides (exceeding 20 feet). While 19+ foot tides warrant caution, the calmer weather conditions, moderate pressure, and NOAA’s flood likelihood of 0% for 08/22 suggest only minor impacts consistent with a Category 3 rating.
CATEGORY 3
WHAT
Slightly elevated tide levels near 19.4 feet are forecast again, with barometric pressures around 1010 hPa. Minor coastal flooding could occur, but conditions remain unlikely to produce significant flooding or property damage.
WHEN
Peak high tide is expected mid to late afternoon on 2025-08-23 (around 5:42 PM).
IMPACTS
• Possible brief water encroachment in low-lying coastal areas.
• No significant closures or damages anticipated, owing to higher atmospheric pressure and a NOAA flood likelihood of 0%.
Comparing with historical data: similar or greater tide heights that led to notable floods were typically accompanied by notably lower barometric pressures (often < 1002 hPa). Given the current pressure forecast is above 1010 hPa, wind speeds are moderate-to-low, and NOAA indicates a low flood likelihood, this remains a Category 3 scenario—close to a minor flood event but not likely to cause major issues.
CATEGORY 3
WHAT
High tide heights near 19.3 feet are projected with barometric pressure around 1010 hPa. While the tide is appreciable, the relatively stable weather patterns continue to lower the overall flood threat, making property-damage flooding unlikely.
WHEN
Main concern is late afternoon into the early evening on 2025-08-24 (peak around 6:06 PM).
IMPACTS
• Minor beach or shoreline flooding could briefly occur.
• No major impacts to infrastructure or significant property damage are expected.
Historically, Category 4 floods and above in this area were driven by a combination of tide levels exceeding 20 feet and/or barometric pressures falling below about 1002 hPa. Since NOAA’s daily flood likelihood remains at 0% and the forecast pressure stays well above critical lows, this day is also categorized as a 3—worth monitoring but unlikely to escalate into a damaging flood event.
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.