Redondo Beach, WA
CATEGORY 4
WHAT Moderate coastal flooding expected. Possible inundation of up to 1-2 feet above ground level near shorelines and low-lying areas.
*WHEN From 05:00 AM to 07:00 AM PST and from 05:00 PM to 08:00 PM PST.
IMPACTS Moderate flooding of low-lying areas, parks, and roads. Isolated road closures possible, with some properties at risk of inundation.
The barometric pressure during the high tides is forecasted to be below the critical threshold of 992.8 hPa, which historically has been associated with significant flooding events. The high tide at 05:36 AM is expected to coincide with a mean pressure MSL of 999.0399780273438 hPa, which is lower than the Category 3 event from 12/27/2023 but not as low as the Category 5 event from 12/27/2022. The second high tide at 18:42 PM is of particular concern as it coincides with a mean pressure MSL of 988.9099731445312 hPa, which is below the critical threshold and closer to the conditions experienced during the Category 5 event. NOAA's Flood Likelihood Analysis indicates a low likelihood of flooding; however, the combination of low pressure and high tide levels warrants a Category 4 classification for potential flooding risk.
CATEGORY 3
WHAT Elevated risk of coastal flooding. Potential for water levels to reach near minor flood stage.
WHEN From approximately 06:00 AM to 08:00 AM PST and from 07:00 PM to 09:30 PM PST.
IMPACTS Minor flooding in susceptible areas, with water encroachment on low-lying roads and property. Some disruption to daily routines possible.
The barometric pressure readings for both high tides are slightly above the critical threshold, with the morning high tide at a mean pressure MSL of 989.47998046875 hPa and the evening high tide at a mean pressure MSL of 990.5999755859375 hPa. These conditions are similar to those observed during the Category 3 event on 12/27/2023, suggesting a lower risk compared to Day 1 but still warranting attention due to the elevated tide levels.
CATEGORY 2
WHAT Low risk of coastal flooding with no significant impact expected.
WHEN Throughout the day, particularly around high tides at approximately 06:24 AM and again at around 08:18 PM PST.
IMPACTS Minimal impacts anticipated, with no significant disruption expected in coastal areas.
On Day 3, both high tides occur with a mean pressure MSL of 995.6799926757812 hPa, which is well above the critical threshold for severe flooding events. This higher barometric pressure suggests more stable weather conditions and a significantly reduced risk of flooding compared to previous days. The NOAA Flood Likelihood Analysis supports this assessment with a low likelihood percentage for flooding.
Residents and businesses in Redondo Beach 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. It is essential to follow updates from local authorities and weather services for real-time information and instructions related to flood safety and emergency procedures.