Flood Watch

Redondo Beach, WA

Day 1: 2024-09-19

CATEGORY 2

WHAT Minor coastal flooding expected. Possible inundation of up to 1 foot 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 07:00 PM PST.

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

ADDITIONAL DETAILS...

On September 19, the high tide at 05:12 AM is expected to reach a height of approximately 19.034 feet with a barometric pressure of 1018.19 hPa. The second high tide at 05:24 PM is expected to reach a height of approximately 20.051 feet with a barometric pressure of 1023.81 hPa. The barometric pressures are relatively high compared to historical severe flood events, suggesting less severe weather conditions. Wind speeds are low, ranging from 1 to 4 mph, which further reduces the risk of significant flooding.

Day 2: 2024-09-20

CATEGORY 2

WHAT Minor coastal flooding expected. Possible inundation of up to 1 foot above ground level near shorelines and low-lying areas.

WHEN From 06:00 AM to 08:00 AM PST and from 06:00 PM to 08:00 PM PST.

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

ADDITIONAL DETAILS...

On September 20, the high tide at 06:12 AM is expected to reach a height of approximately 19.063 feet with a barometric pressure of 1021.98 hPa. The second high tide at 06:00 PM is expected to reach a height of approximately 19.977 feet with a barometric pressure of 1023.80 hPa. The barometric pressures remain high, indicating stable weather conditions with minimal risk for severe flooding. Wind speeds are low, ranging from 3 to 7 mph, which further supports the assessment of minor flooding risk.

Day 3: 2024-09-21

CATEGORY 3

WHAT Moderate coastal flooding possible. Potential inundation of up to 2 feet above ground level near shorelines and low-lying areas.

WHEN From 07:00 AM to 09:00 AM PST and from 06:30 PM to 08:30 PM PST.

IMPACTS Moderate flooding of low-lying areas, parks, and roads. Some road closures possible.

ADDITIONAL DETAILS...

On September 21, the high tide at 07:12 AM is expected to reach a height of approximately 18.944 feet with a barometric pressure of around 1019 hPa. The second high tide at around 06:36 PM is expected to reach a height of approximately 19.649 feet with a similar barometric pressure of around 1019 hPa. While the barometric pressures are higher than those observed in severe historical flood events, the tide heights are significant enough to warrant close monitoring for potential moderate flooding, especially in vulnerable low-lying areas.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

You 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.


Forecast Reasoning:

DayInfo1 (2024-09-19):

Step-by-step analysis indicates that while the tide heights are significant (19.034 ft and 20.051 ft), the high barometric pressures (1018.19 hPa and above) suggest stable weather conditions with minimal risk for severe flooding (Category 2).

DayInfo2 (2024-09-20):

Similar conditions as DayInfo1 with slightly lower tide heights (19.063 ft and around 19.977 ft) but still high barometric pressures (1021.98 hPa and above), indicating minor flood risk (Category 2).

DayInfo3 (2024-09-21):

Tide heights are slightly lower than previous days but still significant (18.944 ft and around 19.649 ft). Barometric pressures are around the same (1019 hPa), suggesting moderate flood risk due to consistent high tides over consecutive days (Category 3).

The analysis integrates weather observations, tide data, and barometric pressure while comparing with historical events for insights into potential flood risks over the next three days in Redondo Beach, WA.