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 1:00 PM to 2:00 PM PST.
IMPACTS Minor flooding of low-lying areas, parks, and roads. Isolated road closures possible.
The barometric pressure readings for the high tides on this day are above the threshold that typically indicates a higher risk of flooding (992.8 hPa), which suggests that while the tide levels are high, the risk of significant flooding is moderated by the relatively higher pressure. However, given the historical data, particularly the event on 12/27/2023, which had a lower pressure but a similar tide height, there is still a potential for minor coastal flooding. The wind direction is not provided but should be monitored if it turns W/NW as it could push more water ashore.
CATEGORY 4
WHAT Coastal flooding likely with potential for property damage in vulnerable areas.
WHEN From 8:00 AM to 9:00 AM PST.
IMPACTS Likely flooding of roads, parks, and properties especially those that are low-lying or close to the shoreline. Residents should be prepared for potential evacuations.
On this day, the barometric pressure drops closer to the critical threshold of 992.8 hPa during high tides, indicating a greater risk of flooding compared to Day 1. The tide height is also within the range that has historically led to Category 4 events. The combination of lowering pressure and high tide levels suggests a scenario similar to the Category 4 events on record, hence the elevated category rating.
CATEGORY 5
WHAT Significant coastal flooding expected with substantial property damage likely.
WHEN From 4:00 PM to 5:00 PM PST.
IMPACTS Major flooding of residential and commercial areas near the coast is likely. Extensive road closures and damage to infrastructure possible. Evacuations may be necessary.
The barometric pressure at high tide is forecasted to be below the critical threshold of 992.8 hPa, which significantly increases the risk of severe weather conditions and potential flooding. The tide level is also expected to be high, although not as high as some historical Category 5 events; however, the very low pressure adds to the risk. This day's conditions are most concerning and warrant a Category 5 rating due to the combination of extremely low pressure and high tide levels.
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 consider evacuation if advised by emergency services.