Redondo Beach, WA
CATEGORY 3
WHAT
A notable high tide nearing 20.3 ft in the mid-morning could bring conditions close to a flood event, but significant impacts are not expected due to very high barometric pressure (over 1028 hPa). NOAA’s flood likelihood for this date is reported at 5.3%, lower than in past moderate flood events but still worth monitoring.
WHEN
Greatest concern runs from approximately 9:00 AM to 10:30 AM PST during the highest tide cycle.
IMPACTS
Minor ponding of water and slightly elevated water levels near shorelines are possible in the lowest-lying areas. Widespread or damaging flooding is unlikely under these conditions.
• Tide Height: Peaks around 20.3 ft, similar to some historical Category 3 tides.
• Barometric Pressure: Very high (~1028 hPa), which helps reduce the potential for flooding.
• NOAA Likelihood: 5.3% (lower than the ~10–11% seen in more impactful Category 3 or 4 events).
• Wind: Generally SSW, moderate speeds around 15–18 mph, not expected to exacerbate tidal effects significantly.
CATEGORY 2
WHAT
Despite a similar peak tide height near 20.1 ft, extremely high barometric pressure (over 1032 hPa) and a very low NOAA flood likelihood of 1.5% indicate no notable flooding concern.
WHEN
Highest tides will occur around mid-morning (9:30 AM to 10:30 AM PST) and late evening, but are not expected to produce any flooding.
IMPACTS
No substantial flooding is anticipated. Normal tidal fluctuations may cause slightly elevated water levels, but effects on roads and infrastructure should be negligible.
• Tide Height: Approaching 20.1 ft, but well offset by unusually high atmospheric pressure.
• Barometric Pressure: ~1032.89 hPa, significantly higher than in prior documented flood events.
• NOAA Likelihood: Only 1.5%, far below typical minor flood thresholds in historical data.
CATEGORY 2
WHAT
A maximum tide near 19.8 ft is forecast, but the barometric pressure remains high (~1029.9 hPa) and NOAA’s flood likelihood is just 0.6%. These factors point to no flood risk.
WHEN
Late morning through midday (roughly 10:30 AM to 11:30 AM PST) sees the highest water levels, staying below typical flood-triggering thresholds.
IMPACTS
No expected flooding concerns for coastal or low-lying areas.
• Tide Height: Near 19.8 ft, slightly lower than Day 1 and Day 2 maximums.
• High Pressure: ~1029.9 hPa, which historically correlates with minimal coastal flood impacts.
• NOAA Likelihood: 0.6%, considered too low to produce even minor inundation concerns.
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.