Redondo Beach, WA
CATEGORY 3
WHAT Minor coastal flooding expected. Possible inundation of up to 0.5 feet above ground level near shorelines and low-lying areas.
*WHEN From 4:00 PM to 7:00 PM PST.
IMPACTS Minor flooding of low-lying areas, parks, and roads. Isolated road closures possible.
The barometric pressure is significantly higher than the threshold associated with past flooding events, suggesting less severe weather conditions. However, the high tide at 18:54 with a mean pressure MSL of 1002.1400146484375 hPa, although not below the critical threshold of 992.8 hPa, still warrants attention due to its proximity to historical Category 3 events. The NOAA Flood Likelihood Analysis indicates a low likelihood of flooding for this day, which aligns with the absence of extreme weather indicators.
CATEGORY 4
WHAT Coastal flooding likely but not expected to cause major property damage.
WHEN From early morning around 5:00 AM continuing to mid-afternoon around 3:00 PM PST.
IMPACTS Flooding of coastal areas, roads, and possibly basements in vulnerable structures. Some disruption to daily routines is possible.
The barometric pressure during the high tide at 05:00 is nearing the critical threshold at 999.77001953125 hPa and drops further during the second high tide at 14:48 to a concerning level of 993.489990234375 hPa. This pressure is close to historical Category 4 events and, when paired with high tide levels over 16 Ft, increases the risk of flooding. The wind direction is not provided but would be a contributing factor if from the W/NW. NOAA's Flood Likelihood remains low for this day; however, the pressure readings suggest a higher risk than indicated by NOAA's data.
CATEGORY 5
WHAT Coastal flooding likely and expected to cause property damage.
WHEN Highest risk during early morning high tide around 5:42 AM and late morning high tide around 10:12 AM PST.
IMPACTS Significant flooding of coastal properties and infrastructure is likely. Road closures and damage to low-lying structures are possible.
The barometric pressure readings for both high tides on this day are at a critical level of 990.8499755859375 hPa, which is below the threshold associated with severe flooding events in historical data. This pressure level combined with high tides exceeding the 16 Ft mark significantly increases the likelihood of flooding akin to a Category 5 event. The NOAA Flood Likelihood Analysis still indicates a low likelihood; however, given the critical pressure readings and comparison with past events such as on 12/27/2022, there is a heightened risk for substantial flooding impacts.
Residents 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. Consult local authorities or experts for final decision-making in flood-related situations and adhere to any evacuation orders or safety instructions provided by emergency services.