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 12:00 PM to 2:00 PM PST.
IMPACTS Minor flooding of low-lying areas, parks, and roads. Isolated road closures possible.
The barometric pressure is forecasted to be around 1002 hPa during the high tide at 1:12 PM, which is higher than the threshold that historically indicates severe flooding (992.8 hPa). However, it is still lower than normal pressure levels, suggesting some risk. The tide height at this time is not expected to reach the levels seen in historical Category 4 or 5 events but is still significant. The NOAA flood likelihood for this day is low, with a 0.0% chance of flooding, which supports the Category 3 assessment. Wind direction data is not provided, but historical events suggest that winds from the W/NW could increase risks; this should be monitored.
CATEGORY 4
WHAT Coastal flooding likely. Inundation of up to 1 foot above ground level possible in some shorelines and low-lying areas.
WHEN From 8:00 AM to 10:00 AM PST.
IMPACTS Flooding of coastal areas, parks, and roads expected. Some property damage possible, and road closures likely.
The barometric pressure is forecasted to drop to around 997 hPa during the high tide at 9:00 AM, which is closer to the threshold indicating potential for more severe flooding events. The tide height is not provided but considering the lower pressure and historical data suggesting that tides over 16 Ft can significantly increase flood risks, a Category 4 event seems likely. NOAA's flood likelihood remains low for this day; however, the pressure data suggests a higher risk than indicated by NOAA's percentage.
CATEGORY 5
WHAT Significant coastal flooding expected. Inundation of more than 1 foot above ground level likely in many shorelines and low-lying areas.
WHEN From 3:00 PM to 5:00 PM PST.
IMPACTS Significant flooding of coastal areas, parks, and roads anticipated. Property damage likely, with several road closures expected.
On this day, the barometric pressure during high tide at 3:48 PM is forecasted to be around 994 hPa, which is below the critical threshold of 992.8 hPa associated with severe flooding events. This low pressure combined with high tides (specific heights not provided) could result in a Category 5 event similar to the historical event on 12/27/2022. NOAA's flood likelihood remains low; however, given the significant drop in pressure and historical comparisons, there is a heightened risk for substantial flooding.
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.