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 3:00 PM PST.
IMPACTS Minor flooding of low-lying areas, parks, and roads. Isolated road closures possible.
The barometric pressure is forecasted to be around 1001.5 hPa during the high tide at 13:42, which is higher than the threshold that has historically indicated severe flooding (992.8 hPa). However, it is still lower than average, suggesting that there may be some risk. The tide level is expected to be significantly lower than the historical events that caused major flooding, and NOAA's Flood Likelihood Analysis indicates a low likelihood of flooding for this date. Wind direction is not provided but would be a lesser factor given the moderate barometric pressure and lower tide levels compared to historical events.
CATEGORY 2
WHAT Coastal conditions expected to be mostly stable with a very low chance of minor tidal overflow.
WHEN Potential for higher tides in the early morning around 5:06 AM and late morning around 8:48 AM PST.
IMPACTS Limited impact with no significant flooding expected. Some pooling of water in typical trouble spots near the shore may occur.
On this day, the barometric pressure during high tides will be higher than on Day 1, at approximately 995.7 hPa and 997.01 hPa, which does not reach the critical threshold for major flooding concerns. The tide levels are also not reaching the heights seen in past significant flood events. NOAA's analysis continues to predict a low likelihood of flooding.
CATEGORY 4
WHAT Elevated risk of coastal flooding due to a combination of high tides and lower barometric pressure.
WHEN Highest risk near the high tide at 4:00 PM PST.
IMPACTS Possible flooding of properties, especially in low-lying areas and regions with poor drainage. Some damage to vulnerable structures may occur.
The barometric pressure is forecasted to drop to around 991.88 hPa during the high tide at 16:00, which is below the critical threshold and closer to pressures seen during previous flood events. The tide level is not provided but given the significant drop in pressure, there is an increased risk of flooding compared to the previous days. Historical data suggests that such pressure levels can lead to Category 4 events when paired with high tides over 21 feet; however, without specific tide level data for this day, caution is advised.
Residents and businesses 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.