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 01:30 AM to 03:00 AM PST.
IMPACTS Minor flooding of low-lying areas, parks, and roads. Isolated road closures possible.
The barometric pressure is forecasted to be around 1010 hPa during the high tide at 01:48 AM, which is significantly higher than the threshold associated with previous Category 4 or higher events. However, the tide height is expected to be around 19.865 feet, which is higher than the Category 3 event but lower than Category 4 and 5 events. The wind direction is SSE, which may contribute to water being pushed towards the shore but is not as critical as a W/NW direction would be. NOAA's Flood Likelihood Analysis indicates a low likelihood of flooding for this date, with a distance to threshold of -1.32m from the flood threshold of 2.1m.
CATEGORY 2
WHAT Coastal conditions expected to be mostly stable with a very low chance of minor tidal overflow.
WHEN Potential for minor tidal fluctuations around high tide times.
IMPACTS No significant impacts expected. Some standing water may occur in the most vulnerable locations during high tide.
On this day, the barometric pressure drops slightly to around 1006 hPa during the high tide at 02:24 AM, which is closer to the threshold that could indicate potential for flooding but still above Category 4 or higher events. The tide height is not expected to reach levels that have historically caused flooding in Redondo Beach, WA. Wind conditions are not provided but would need to be considered if they come from a W/NW direction. NOAA's Flood Likelihood Analysis maintains a low likelihood of flooding with no expected exceedance of the flood threshold.
CATEGORY 4
WHAT Elevated risk of coastal flooding due to high tides and lowering barometric pressure.
WHEN Highest risk near the time of high tide at approximately 03:06 AM and again at around 18:12 PM PST.
IMPACTS Possible flooding of properties in low-lying coastal areas, roads near the shore, and disruption to transportation routes.
The barometric pressure on this day is forecasted to be around 1001 hPa during the evening high tide at 18:12 PM, which is very close to Category 4 historical events and indicates an increased risk of severe weather conditions that could lead to flooding. The tide height is also expected to be elevated, although specific values are not provided; if they are similar or exceed those from previous Category 4 events, this would further increase the flood risk. The wind direction will also play a role; if it shifts towards W/NW, it could push additional seawater towards the coast and exacerbate flooding conditions. NOAA's Flood Likelihood Analysis still indicates a low likelihood of flooding; however, given the proximity to historical Category 4 conditions, there is an elevated risk on this day.
Residents and businesses near the shore should monitor later forecasts and be alert for possible Flood Warnings. Those living in areas prone to flooding should prepare to take action should flooding develop. Stay informed about local tide schedules and heed any advice or instructions from local authorities or emergency services related to potential coastal flooding.