Redondo Beach, WA
CATEGORY 3
WHAT
A fairly high tide (peaking near the mid-afternoon around 18.7+ ft) combined with moderate barometric pressure (about 1009–1010 hPa) could lead to conditions close to a minor coastal flood event. Flooding damage is unlikely.
WHEN
The highest tide is expected from late morning into mid-afternoon, roughly between 11:30 AM and 3:00 PM PDT, with a peak near 2:00 PM–2:30 PM PDT.
IMPACTS
• Possible very minor street or walkway flooding in vulnerable low-lying areas.
• Overall impacts should remain limited, though it is worth monitoring as water levels approach these higher tide ranges.
Historical Category 3 events, such as on 12/27/2023 (17.460 ft with lower pressure), suggest that tides exceeding about 17 ft combined with moderately low pressure can produce minor flooding. Today’s barometric pressure is not especially low, which keeps the threat moderate. NOAA’s flood likelihood rating for 2025-09-16 remains at 0.0%, reinforcing a lower overall risk.
CATEGORY 3
WHAT
Near-midday high tide peaking around 19.0+ ft, but still accompanied by relatively high barometric pressure near 1018–1019 hPa. This places conditions close to a flood event threshold without significant property damage expected.
WHEN
Peak tide is projected around 2:30 PM–3:00 PM PDT.
IMPACTS
• Low-lying coastal areas could see brief water encroachment.
• No major property damage is anticipated, though some roads adjacent to shorelines may experience minor ponding.
Although 19 ft tides are substantial, the higher-pressure reading helps reduce major flood potential. Historical data show that significantly lower pressures, under about 1002 hPa, paired with tides near or above 20 ft, are more apt to produce Category 4 or higher events. NOAA’s flood likelihood remains at 0.0% for this date, further supporting a Category 3 assessment.
CATEGORY 3
WHAT
Another midday high tide nearing 19.2+ ft. Barometric pressure will be around 1016 hPa at the peak tide, slightly lower than Day 2 but not low enough to create a notable coastal flood risk.
WHEN
Highest water levels are forecast from early to mid-afternoon, approximately 2:30 PM–3:30 PM PDT, with a peak around 3:30 PM PDT.
IMPACTS
• Occasional minor flooding in low-lying areas immediately along the shoreline.
• Significant property damage is unlikely; however, minor impacts on parks or coastal roads near the waterline are possible.
Comparing to historical events: Though 19+ ft tides can raise caution, the barometric pressure remains well above extremely low thresholds (e.g., ~992 hPa) historically linked to more serious flooding. NOAA’s forecasts again indicate a near 0% flood likelihood for the region on this date, consistent with the moderate risk.
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.