Flood Watch

Redondo Beach, WA

Day 1: 2024-03-19

CATEGORY 2

WHAT Minor coastal flooding expected. Possible inundation of up to 0.5 feet above ground level near shorelines and low-lying areas.

*WHEN From 2:00 AM to 3:00 AM PST and again from 11:00 AM to 12:30 PM PST.

IMPACTS Minor flooding of low-lying areas, parks, and roads. Isolated road closures possible.

ADDITIONAL DETAILS...

The barometric pressure during the high tides of 1019.5 hPa and 1024.1 hPa is significantly higher than the threshold that has historically indicated severe flooding events (below 992.8 hPa). The tide heights are not reaching the levels seen in past Category 4 or higher events, and NOAA's Flood Likelihood Analysis indicates a low likelihood of flooding for this date. Wind direction is not provided but would be a lesser factor given the high barometric pressure.

Day 2: 2024-03-20

CATEGORY 2

WHAT Minor coastal flooding potential persists with limited impact expected.

WHEN Highest risk near the high tide at 1:24 PM PST and again around the high tide at 9:36 PM PST.

IMPACTS Similar minor impacts as Day 1, with low-lying areas possibly experiencing brief inundation.

ADDITIONAL DETAILS...

The barometric pressure readings of 1021.8 hPa and 1020.2 hPa during high tides are still well above the critical threshold for severe flooding risk. The NOAA Flood Likelihood remains low for this date, and tide heights are not indicative of major flooding events based on historical comparisons.

Day 3: 2024-03-21

CATEGORY 3

WHAT Elevated risk of coastal flooding due to lower barometric pressure and high tide combination.

WHEN Increased risk around the high tide at 3:48 AM PST and again at the high tide at 2:24 PM PST.

IMPACTS Potential for moderate flooding of coastal areas, including roads, docks, and possibly properties closest to the shoreline.

ADDITIONAL DETAILS...

On this day, the barometric pressure drops closer to historical flood event levels with readings of 1015.4 hPa and 1013.0 hPa during high tides, which may increase the risk of flooding despite still being above the critical threshold. The NOAA Flood Likelihood Analysis continues to indicate a low likelihood of flooding; however, given the lower pressures, there is a slightly higher risk compared to the previous days. Historical data suggests that wind direction from W/NW could exacerbate conditions, but current wind data is not provided.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.