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 8:00 PM to 10:30 PM PST.
IMPACTS Minor flooding of low-lying areas, parks, and roads. Isolated road closures possible.
The barometric pressure is forecasted to be around 1006.3 hPa during the high tide at 9:12 PM, which is higher than the threshold that indicates a severe flood risk. However, the tide height is expected to be significant, and when combined with the lower pressure, there is a potential for minor coastal flooding. The wind direction is from the north, which may not significantly contribute to the water levels as winds from the W/NW would. Comparing with historical events, particularly the Category 3 event on 12/27/2023 with a similar tide height but higher pressure, suggests that while flooding is possible, it may not be severe.
CATEGORY 4
WHAT Coastal flooding likely with potential for property damage in vulnerable areas.
WHEN From 7:00 PM to 9:30 PM PST.
IMPACTS Flooding of coastal properties and roads expected. Some damage to property and infrastructure in low-lying areas possible.
The barometric pressure is expected to drop significantly to around 1000.0 hPa during the high tide at 9:48 PM, which is closer to the threshold that has historically indicated more severe flooding events. The tide height is also expected to be high on this day. The combination of lower pressure and high tide could lead to more substantial flooding than on Day 1. The NOAA flood likelihood remains low; however, given the pressure and tide data, it's prudent to forecast a higher risk.
CATEGORY 5
WHAT Significant coastal flooding expected with likely property damage.
WHEN From 8:00 PM to 10:30 PM PST.
IMPACTS Major flooding of coastal areas anticipated with significant property damage likely. Evacuations may be necessary in vulnerable areas.
On this day, both the barometric pressure and tide levels are forecasted to be concerning, with pressures around 995.8 hPa during high tides at both 9:30 AM and 10:24 PM. This closely mirrors the conditions of the Category 5 event on 12/27/2022, although the wind direction is not specified in the provided data. Given these factors, there is a significant risk for major flooding events similar to or potentially exceeding the severity of previous Category 5 conditions.
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.