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 10:00 PM PST.
IMPACTS Minor flooding of low-lying areas, parks, and roads. Isolated road closures possible.
The barometric pressure is forecasted to be around 1006 hPa during the high tide at 9:12 PM, which is higher than the threshold that historically indicates severe flooding. However, the tide height is expected to be significant, and when combined with the overcast conditions and wind direction from the WSW, there is a potential for minor coastal flooding. This situation is somewhat similar to the Category 3 event on 12/27/2023, although the pressure is not as low, suggesting a lower risk of severe flooding.
CATEGORY 4
WHAT Coastal flooding likely with potential for property damage in vulnerable areas.
WHEN From 7:30 PM to 9:30 PM PST.
IMPACTS Flooding of coastal properties, roads, and basements. Disruption to transportation with possible road closures.
The barometric pressure is expected to drop significantly to around 998 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, and with the wind direction from WSW earlier in the day, there is an increased risk of water being pushed toward the shore. This forecast aligns more closely with Category 4 events from our historical data.
CATEGORY 5
WHAT Significant coastal flooding expected with substantial property damage likely.
WHEN From 8:30 PM to 10:30 PM PST.
IMPACTS Major flooding of coastal areas with extensive property damage. Evacuations may be necessary, and emergency services may be required.
On this day, the barometric pressure will be around 995 hPa during high tide at 10:24 PM, which is very close to the pressure levels seen during previous Category 5 events. The tide height is also expected to be high, and given the historical data indicating severe flooding when pressures are this low, there is a significant risk for extensive flooding. The wind direction will also play a role in exacerbating the situation if it comes from a direction that pushes water toward the coast.
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 follow any evacuation orders or safety instructions as issued by emergency services.