Redondo Beach, WA
CATEGORY 2
WHAT
No risk of flooding is expected. Although the tidal height reaches approximately 19 ft during the afternoon, the barometric pressure for this period is significantly higher than the historical low-pressure flood thresholds, reducing any flood risk to negligible levels.
WHEN
Around midday to late afternoon on 10/18, when the highest tides occur.
IMPACTS
No coastal flooding impacts are anticipated. Normal beach and shoreline conditions are expected, and roads or low-lying areas should remain unaffected.
• Historical Category 4 and 5 events typically combined very high tides (over 20 ft) with notably low barometric pressure (well below 1000 hPa). In contrast, the forecast barometric pressures on 10/18 are around 1029–1031 hPa, well above the critical low-pressure thresholds.
• NOAA’s Flood Likelihood Analysis shows 0.0% chance of flooding for this date, further confirming the minimal flood risk.
CATEGORY 2
WHAT
No risk of flooding. While the tidal peak is again near 19 ft, the accompanying barometric pressures remain high, and NOAA’s flood likelihood remains at 0.0%.
WHEN
Midday to late afternoon on 10/19, coinciding with projected high tide times.
IMPACTS
No flooding impacts expected. Shoreline and nearshore infrastructure will not see any significant coastal flooding concerns.
• Compared to historical Category 3 events (e.g., around 20+ ft tides with barometric pressure closer to or below 1020 hPa), these conditions do not approach known flood thresholds.
• Winds are not forecast from directions typically amplifying storm surge (e.g., strong onshore winds), further reducing flooding concerns.
CATEGORY 2
WHAT
No risk of flooding. Tides approach 18–19 ft, but the barometric pressure remains high (around 1029 hPa) and NOAA continues to project a 0.0% likelihood of flooding.
WHEN
Near the afternoon high tide on 10/20.
IMPACTS
No coastal flood impacts are expected.
• Similar to the preceding days, the high pressure counteracts the elevated tide levels, preventing conditions that historically have led to flooding.
• This is well below the intensity of documented Category 4–5 events, which typically involve significantly lower pressure and higher tides.
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.