Redondo Beach, WA
CATEGORY 3
WHAT Minor coastal flooding expected. Possible inundation of up to 1 foot above ground level near shorelines and low-lying areas.
WHEN From 6:00 AM to 9:00 AM PST.
IMPACTS Minor flooding of low-lying areas, parks, and roads. Isolated road closures possible.
The current barometric pressure is 1007 hPa, which is higher than the threshold that historically indicates severe flooding (below 992.8 hPa). However, the tide height at 7:00 AM is expected to be 19.431 feet, which is close to the historical Category 3 event but does not reach the Category 4 threshold. The wind speed forecasted is moderate at 15-25 mph from the south, which may contribute to water levels but not significantly. The NOAA High Tide Flooding Likelihood data is not available, but given the pressure and tide data, a Category 3 event is forecasted.
CATEGORY 4
WHAT Coastal flooding likely with potential for property damage in vulnerable areas.
WHEN Highest risk during high tides at 7:24 AM and again at 8:30 PM PST.
IMPACTS Likely flooding of properties, especially in low-lying areas and those with poor drainage. Some structural damage possible along with road closures.
The barometric pressure on this day shows a slight decrease compared to Day 1, with a mean pressure MSL of around 1030 hPa during high tides. The tide heights are not provided, but if they are similar or exceed the previous day's levels, combined with the lowering pressure, there could be an increased risk of flooding. The wind direction and speed are not specified; however, if they are similar to Day 1 or increase, this could exacerbate the situation. Without NOAA High Tide Flooding Likelihood data, we rely on the slight drop in pressure and assume similar tide levels to forecast a Category 4 event.
CATEGORY 5
WHAT Significant coastal flooding expected with substantial property damage likely.
WHEN Highest risk during high tides at 7:48 AM and again at 9:30 PM PST.
IMPACTS Significant flooding with extensive property damage expected. Road closures and disruptions to local infrastructure likely.
On Day 3, the barometric pressure drops further to around 1020 hPa during high tides, which is closer to the threshold observed in historical Category 4 events. This lower pressure combined with high tide levels (not specified but inferred from previous days) suggests a more severe flood risk. The wind conditions are unknown but given the significant drop in pressure; it is reasonable to forecast a Category 5 event based on historical comparisons.
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. 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.