Redondo Beach, WA
Below is a three-day outlook for coastal flood potential based on the provided data (tides, barometric pressure, and NOAA’s flood likelihood). None of the days show tide heights exceeding 21 ft, and barometric pressures remain well above the historically low thresholds (below ~992–1002 hPa) that contributed to major past flood events. NOAA also forecasts a low (<3%) flood likelihood each day. Consequently, all three days fall under “No risk of flooding” in the 1–7 category scale.
CATEGORY 2
WHAT
High tide levels approach ~20.2 ft late morning, but barometric pressure near 1012–1014 hPa remains significantly higher than the low-pressure systems historically linked to flood events. NOAA’s flood likelihood for this day stands at only 2.8%.
WHEN
Greatest tidal height occurs around mid to late morning (roughly 10:30–11:00 AM PST).
IMPACTS
No flooding is anticipated. Low-lying roads and shorelines should remain unaffected at these pressure and tide levels.
• Historical Category 3–4 floods typically involved either higher tides (>20.5 ft) or notably lower pressure (<1010 hPa).
• NOAA’s reported flood threshold data indicates minimal risk (distance to threshold ~ -0.98 m).
• Winds from easterly directions are relatively light and unlikely to push significant water onshore.
CATEGORY 2
WHAT
Morning tides again approach about 20.1 ft, but pressure near 1019 hPa is high, which helps suppress storm surge effects. NOAA assigns a 2.0% flood likelihood.
WHEN
Peak tide falls late morning (around 11:00–11:30 AM PST).
IMPACTS
No coastal flooding expected; normal daily tidal flooding precautions are sufficient.
• Compared to past Category 3 events (tide ~20.6 ft with pressures 1016–1020 hPa), this day’s tide is slightly lower, and the pressure is relatively high.
• Winds remain light and are not oriented in a direction (W/NW) historically associated with worsened flood conditions.
CATEGORY 2
WHAT
Tides crest near 20.0 ft midday, but a high barometric pressure ~1027 hPa and NOAA’s extremely low (~1.8%) flood likelihood indicate minimal risk.
WHEN
Highest danger period loosely around 11:30 AM–12:00 PM PST, with the peak tide near 20 ft.
IMPACTS
No flooding is projected; conditions are stable, and no surge is expected.
• This pressure is notably higher than in most of the historical events that caused flood problems.
• NOAA’s distance-to-threshold is about -1.09 m, reflecting a comfortable margin below flood levels.
• Wind speeds remain low, and direction is not unfavorable for additional wave run-up.
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, uncertain if major damage will occur.
• Category 5: Likely to flood and cause property damage.
• Categories 6–7: Extremely high flood risk with significant property damage likely.