Redondo Beach, WA
CATEGORY 1
WHAT
Tides remain relatively low (under 10 ft) and barometric pressure stays well above historically critical lows. No flooding issues are expected.
WHEN
Highest local tides occur around mid-afternoon (15:18) and early evening (18:42); both remain well below typical flood thresholds.
IMPACTS
• No anticipated flooding in coastal or low-lying areas
• Normal waterfront conditions
NOAA data shows a 0.0% flood likelihood for 2025-04-21. Compared with the historical Category 1 event having a similar or slightly higher tide (~10.43 ft) but much lower pressure (~992 hPa), today’s higher pressure (~1010–1012 hPa) and sub-10 ft tides further reduce any chance of flood risk.
CATEGORY 3
WHAT
Late-evening tide heights approach the mid- to upper-17 ft range, combined with moderately lower barometric pressure near 1001 hPa. This places conditions close to a minor flood scenario, but significant flooding or damage is unlikely.
WHEN
Elevated tides peaking late on 04/22 into the early hours of 04/23 (roughly 23:30–00:30).
IMPACTS
• Minor water accumulation possible in very low-lying areas
• Inconveniences along the immediate shoreline, but no major property damage expected
These conditions resemble historical Category 3 events such as 12/27/2023 (tide height ~17.46 ft, barometric pressure ~1006 hPa). While tide height overnight may slightly exceed 17.5 ft, it remains below typical Category 4 thresholds (generally 19+ ft or very low pressure). NOAA’s forecast continues to show a low flood likelihood (0.0%).
CATEGORY 3
WHAT
Tides could exceed 18 ft near early morning (around 01:30), with barometric pressure dipping closer to 1000 hPa. These factors warrant monitoring for localized coastal impacts.
WHEN
Highest risk spans early morning (around 01:00–02:00) and midday high tide (~12:48).
IMPACTS
• Possible shallow flooding over beaches or walkways
• No major infrastructure or property damage anticipated
Although tides approach ~18.8 ft, pressure ~1000 hPa is not as low as pressures observed in more severe Category 4 events. Previous Category 3 records (e.g., 17–20 ft tides, moderate-to-high pressure) align with these conditions. NOAA also indicates a 0.0% flood likelihood for 04/23.
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.