Redondo Beach, WA
CATEGORY 3
WHAT
A relatively high evening tide of approximately 18.56 ft is expected near 8:00 PM with a moderately low barometric pressure of around 996.63 hPa. While this is higher and the pressure is lower relative to some past minor events, NOAA’s current flood likelihood remains at 0%. This suggests conditions will be close to a flood event but are unlikely to cause property damage.
WHEN
Primary concern around the high tide period from late afternoon to early evening on 09/13.
IMPACTS
Some minor ponding of water in low-lying areas and very nearshore spots is possible; however, large-scale road closures or significant damage are not expected.
• Tide is above 17 ft and barometric pressure is below 1000 hPa, making this worth monitoring.
• Past Category 3 events have had similar tide heights.
• NOAA’s low flood likelihood (0%) moderates the overall risk, indicating little chance of damaging inundation.
CATEGORY 3
WHAT
Late morning high tide near 17.9–18.0 ft with barometric pressure around 997–998 hPa. Again, NOAA’s official flood likelihood is 0%, suggesting only a marginal risk for minor coastal flooding.
WHEN
Heightened tide around mid-day on 09/14.
IMPACTS
Coastal walkways and the lowest-lying roads could see minor water encroachment. No substantial property damage is anticipated.
• Although the barometric pressure is on the lower side, it is well above the critical threshold of ~992.8 hPa.
• Compared with historic Category 3 events, the forecast tide height is similar, but NOAA predicts no significant flooding.
CATEGORY 3
WHAT
Another high tide reaching roughly 18.3 ft mid-day, but with higher barometric pressure (above 1008 hPa in the evening). NOAA’s flood likelihood remains at 0%. This indicates conditions near but still below a damaging flood threshold, warranting general awareness but not an elevated alert.
WHEN
Strongest tidal effects expected around midday on 09/15. An additional late-night high tide occurs near 10:00 PM–10:30 PM (about 17+ ft), but with even higher atmospheric pressure.
IMPACTS
Minor water intrusion possible in the most flood-prone shorefront areas. Widespread flooding or notable property impacts are not likely.
• The combination of elevated tide and moderate winds from the W/SW should be watched by those in extremely low-lying zones.
• Higher atmospheric pressure relative to Days 1 and 2 helps keep the flood threat minimal.
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.