Redondo Beach, WA
CATEGORY 3
WHAT
High tide near 19.8 ft around late evening (23:18) with moderately low barometric pressure (~1001.6 hPa). Conditions are close to a flood event but are not expected to result in notable flood damage.
WHEN
Highest concern is around 22:00 to midnight local time, centered on the late-evening high tide.
IMPACTS
Minor overflow in very low-lying coastal spots is possible, but widespread or damaging flooding is unlikely. Occasional ponding on roads near the shoreline cannot be ruled out.
Tide heights up to around 19.8 ft are significant but remain below the 20+ ft levels frequently linked with historic Category 4 events. Although the barometric pressure is relatively low compared to high pressure scenarios, it is not exceptionally low (e.g., below ~993 hPa). Historically, similar or slightly higher tide levels accompanied by higher barometric pressure have been categorized as Category 3. Therefore, any flooding should be minor and localized.
CATEGORY 3
WHAT
Evening high tide again approaches ~19.8 ft (23:54) with barometric pressure dipping near 1000.1 hPa. Overall risk profile remains similar to Day 1, warranting monitoring but not indicating substantial flood damage.
WHEN
Primarily from late evening into the early overnight hours. Peak water levels are expected near midnight local time.
IMPACTS
Slight inundation of low-lying roadways immediately adjacent to the shoreline is possible. Widespread or structural property impacts are not expected.
Historic data shows that tides near 20 ft can sometimes lead to minor flooding, but pressure this day, while not high, is not in the very low range associated with Category 4 or higher. With no NOAA flood risk data available for this period and comparing with past Category 3 conditions, this level is best categorized as a close watch situation without strong indicators of heavy damage.
CATEGORY 3
WHAT
Afternoon high tide is around 17 ft (14:24) under somewhat lower barometric pressure (~998 hPa). Though the tide height is lower than Days 1 and 2, the pressure is somewhat lower too, offsetting the reduced tide elevation.
WHEN
Around midday to early afternoon, particularly near the 14:24 high tide.
IMPACTS
Minor spillovers in susceptible shore areas may occur. No major interruptions to daily activity or property damage are anticipated.
Historical comparisons (e.g., a past Category 3 event with a 17–18 ft tide but slightly higher pressure) suggest that this combination of lower barometric pressure with a mid-range high tide can still bring minor flooding. The tide remains below the 19–20 ft threshold that more typically leads to higher category flooding—even with relatively low pressure. Therefore, Category 3 is assigned due to the potential for very localized impacts.
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.