Redondo Beach, WA
CATEGORY 2
WHAT
Tidal heights are expected to reach roughly 19.2 ft around 8:42 PM local time. Barometric pressure near this peak is forecast around 1003.8 hPa, which is neither exceedingly low nor indicative of a strong storm system. NOAA reports a 0.0% flood likelihood for this date.
WHEN
Highest water level is anticipated late in the evening on 2025-05-16 (near 8:42 PM).
IMPACTS
No flooding impacts are anticipated. Low-lying coastal areas may see slightly higher than normal water levels, but these levels should remain safely below known flood thresholds.
• Tide height is below 21 ft and does not align with the low-pressure criteria seen in past flood events.
• NOAA’s official flood likelihood remains at 0.0% for 2025-05-16, supporting minimal concern.
• Historical Category 3–4 events typically showed either higher tide levels or significantly lower pressures than forecast for today.
CATEGORY 2
WHAT
Tide levels are expected to approach approximately 19.1 ft into the evening. Barometric pressure near the higher tide times is around 1000–1001 hPa, somewhat lower than Day 1 but still well above critical low-pressure values historically associated with coastal flooding.
WHEN
Peak water levels may occur by late evening on 2025-05-17 (around 9:30–9:36 PM).
IMPACTS
No observed or forecast indicators suggest flooding. Elevated water levels along the shorelines may be noticed, but flooding is not anticipated.
• Although the pressure is modestly lower than Day 1, it remains considerably higher than the ~992 hPa threshold often linked with severe events.
• NOAA maintains a 0.0% flood likelihood for 2025-05-17, which indicates no significant coastal impacts.
• Compared with historical moderate (Category 3) or higher flood events, the tide here is under the more critical 20–21 ft range, reducing concern.
CATEGORY 3
WHAT
Barometric pressure is projected to drop near 993.9 hPa around midday, overlapping with moderate-high tide levels (peaking near 19.0 ft in the late evening). This combination is relatively close to conditions that can precede minor coastal challenges, warranting extra attention.
WHEN
• Lower pressure and higher tide synergy is likely to occur mid-to-late afternoon (around 4:42 PM local time) and again in the evening (around 9:54–10:12 PM local time).
IMPACTS
Overall flooding remains unlikely, but water levels will be near thresholds historically linked with some minor concerns. Vigilance is advised, especially for low-lying waterfront areas. Minor roadside ponding or very localized issues are possible but not expected to escalate into damaging floods.
• Although today’s tide does not exceed 20 ft, the near-993 hPa pressure is notably lower than on Days 1 and 2. Historically, low pressure combined with moderately high tides warrants monitoring, even if major impacts remain improbable.
• Official NOAA data still indicates a 0.0% flood likelihood for 2025-05-18, suggesting that widespread flooding is not expected.
• Historical Category 4 or 5 events typically involved tide heights of 20+ ft and/or barometric pressures in the 992 hPa or lower range, beyond today’s projections.
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.