Redondo Beach, WA
CATEGORY 4
WHAT
Flooding is likely along the coast around the times of the highest tides, but major property damage is not anticipated. Barometric pressures will be slightly lower than some past moderate flood events, and combined with tide heights reaching around 20.6 ft, localized flooding is probable in vulnerable areas.
WHEN
Highest risk near the morning high tide from approximately 4:30 AM PST to 6:30 AM PST and again in the afternoon high tide window from 2:30 PM PST to 4:30 PM PST.
IMPACTS
• Minor flooding of low-lying roads and coastal parks.
• Possible short-term disruptions near waterfront areas.
• Ponding of water in parking lots or other poorly drained areas.
• Compared to historical Category 4 events (e.g., 12/18/2024 with a 20.586 ft tide and moderate winds), today’s tide levels are similarly high around 20.6 ft, with barometric pressure near 1004–1006 hPa.
• NOAA’s likelihood of flooding for 12/05 is about 14.3%, higher than some previous moderate events, reinforcing a Category 4 classification.
CATEGORY 4
WHAT
Flooding remains likely due to continued high tides around 20.8–20.9 ft. While barometric pressure is not extremely low (about 1007–1013 hPa), the tide height and NOAA’s increased flood likelihood indicate ongoing moderate flooding risk.
WHEN
Highest risk near the morning high tide from roughly 5:30 AM PST to 7:30 AM PST and mid-afternoon from about 3:30 PM PST to 5:30 PM PST.
IMPACTS
• Recurrent flooding in typical low-lying coastal zones.
• Brief road closures along waterfront routes remain possible.
• Mariners should exercise caution as wind-driven waves may add to localized flooding.
• NOAA’s flood likelihood is ~25.4%, noticeably higher than Day 1, suggesting a continued moderate flood scenario.
• Tides compare to past Category 4 events (e.g., near 20 ft or above) without extremely low barometric pressure, which keeps it below Category 5 risk levels.
CATEGORY 4
WHAT
Flooding is likely but not expected to be severe. Tides around 20.8+ ft with moderate barometric pressure near 1016–1017 hPa will drive minor to moderate coastal flooding during peak tide.
WHEN
Peak flooding risk from about 6:30 AM PST to 8:30 AM PST and again late afternoon from approximately 4:30 PM PST to 6:30 PM PST.
IMPACTS
• Ongoing minor inundation of roads and parks near the shoreline.
• Localized impacts around harbor facilities, boardwalks, and marinas.
• Possible short-duration closures of low-lying roadways.
• Compared with historical Category 4 instances (such as 12/18/2024), high tide heights exceed 20 ft, and NOAA’s flood likelihood of ~23.7% supports moderate flooding potential.
• The barometric pressure is higher than on Days 1 and 2, preventing escalation to a Category 5 event.
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.