Redondo Beach, WA
CATEGORY 4
WHAT
Moderate coastal flooding is likely around morning high tide, but widespread major property damage is not expected.
WHEN
The highest risk period is near the morning high tide (approximately 07:42 AM PST).
IMPACTS
Minor to moderate flooding of low-lying areas, especially along the immediate shoreline. Some roads and parking areas near the coast could experience brief inundation.
• Tide heights are forecast to reach about 20.9 ft in the early morning.
• The barometric pressure at high tide is forecast around 1010.6 hPa, which is lower than some past moderate-flood events but not near the extreme lows (below ~992 hPa) recorded in more severe cases.
• NOAA’s Flood Likelihood is 24%, which is greater than previous Category 3 events, suggesting enough risk to reach Category 4 levels, even though extremely low pressure is not present.
• Winds will be out of the south-southwest around 20 mph, which could push additional water onshore, but are not as strong as in some historically higher-damage events.
CATEGORY 3
WHAT
Close to a flood event and worth monitoring, but unlikely to cause significant flood damage.
WHEN
Main concern is again around the morning high tide (approximately 08:18 AM PST).
IMPACTS
Localized flooding in vulnerable low-lying areas near the shoreline. Any property damage should be minimal or unlikely.
• The forecast tide height near 20.8 ft is similar to previous Category 3 events.
• Barometric pressure is expected to be quite high (around 1026 hPa), which lowers the overall severity compared to events with lower pressure.
• NOAA’s Flood Likelihood is 17.1%, higher than some minor-flood analogs but still below the more concerning Day 1 level.
• Wind speeds remain moderate, limiting additional onshore push of seawater.
CATEGORY 3
WHAT
Conditions remain near a flood threshold, warranting monitoring but not indicating severe inundation or significant property damage.
WHEN
Peak concerns coincide with the morning high tide (around 08:48 AM PST) and again in the evening (around 08:30 PM PST).
IMPACTS
Minor flooding possible in coastal and low-lying regions. No major property damage anticipated.
• Forecast peak tides near 20.5 ft are comparable to earlier Category 3 events.
• Barometric pressure is around 1013 hPa, which is not extremely low, so severe impacts are less likely.
• NOAA’s Flood Likelihood is 9.3%, lower than Days 1 and 2, but still labeled “High” by NOAA’s criteria; thus it should be monitored.
• Winds are generally from the south, not expected to create an additional substantial surge.
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.