Flood Watch

Redondo Beach, WA

Day 1: 2024-10-24

CATEGORY 1

WHAT No flooding is expected.

WHEN No flooding is expected during this day.

IMPACTS No impacts expected.

ADDITIONAL DETAILS...

Analysis for Day 1:

Step 1: Assess Barometric Pressure

The barometric pressure is around 1023.6 hPa during the high tide at 22:00. This is significantly higher than pressures observed during historical flooding events (e.g., 978.4 hPa during the Category 5 event on 12/27/2022). High pressure suggests stable atmospheric conditions, reducing the likelihood of severe weather and flooding.

Step 2: Evaluate Tide Height

The maximum tide height is approximately 19.037 ft at 12:00 PM. This is lower than the 21.506 ft observed during the Category 4 event on 11/15/2021 and the 22.297 ft during the Category 5 event on 12/27/2022. While the tide is relatively high, it is not sufficient on its own to pose a flood risk, especially with the accompanying high barometric pressure.

Step 3: Consider Wind Direction

Wind speeds are low, around 6 mph, with winds coming predominantly from the north (wind direction of 355° to 9°). Historical flood events often involved higher wind speeds and directions that pushed seawater towards the coast. The current wind conditions are not conducive to increasing flood risk.

Step 4: Integrate NOAA High Tide Flooding Likelihood

NOAA's forecast indicates a low flood likelihood with a 0.0% chance for 2024-10-24. The distance to the flood threshold is -2.13 meters, meaning the observed tides are well below levels that would cause flooding according to NOAA's data.

Step 5: Synthesize Information and Forecast Flood Category

Combining the high barometric pressure, moderate tide heights, low wind speeds, and NOAA's low flood likelihood, the flood category for 2024-10-24 is assessed as Category 1, indicating no risk of flooding.

Day 2: 2024-10-25

CATEGORY 1

WHAT No flooding is expected.

WHEN No flooding is expected during this day.

IMPACTS No impacts expected.

ADDITIONAL DETAILS...

Analysis for Day 2:

Step 1: Assess Barometric Pressure

The barometric pressure is notably high at approximately 1033.63 hPa during the high tide at 12:54 PM. This exceeds the pressures observed in all historical flooding events, indicating very stable atmospheric conditions and a minimal risk of severe weather.

Step 2: Evaluate Tide Height

The maximum tide height is around 18.997 ft near midday, slightly lower than Day 1 and significantly below the levels seen in historical Category 4 and 5 events. This tide height does not pose a flood risk, particularly when coupled with the high barometric pressure.

Step 3: Consider Wind Direction

Wind speeds are minimal, ranging from 1 to 5 mph, with wind directions varying between NNE and NE. Such low wind speeds and directions are not associated with increased flooding risk.

Step 4: Integrate NOAA High Tide Flooding Likelihood

NOAA's forecast continues to show a low flood likelihood with a 0.0% chance for 2024-10-25. The distance to the flood threshold is -2.17 meters, keeping observed tides well below concern levels.

Step 5: Synthesize Information and Forecast Flood Category

Given the exceptionally high barometric pressure, moderate tide heights, minimal wind influence, and NOAA's assessment, the flood category for 2024-10-25 is determined to be Category 1, indicating no risk of flooding.

Day 3: 2024-10-26

CATEGORY 1

WHAT No flooding is expected.

WHEN No flooding is expected during this day.

IMPACTS No impacts expected.

ADDITIONAL DETAILS...

Analysis for Day 3:

Step 1: Assess Barometric Pressure

The barometric pressure remains high, with readings around 1028.21 hPa during the early high tides. This continued trend of high pressure suggests stable weather conditions with low potential for severe weather events.

Step 2: Evaluate Tide Height

The maximum tide height is approximately 18.099 ft at 12:00 PM, which is lower than the previous days and significantly below the heights recorded during historical flooding events. This poses no significant flood risk on its own.

Step 3: Consider Wind Direction

Wind speeds are slightly higher than previous days but still moderate, between 4 to 7 mph. Wind direction is primarily from the south (around 172°), which does not historically contribute to increased flood risk in this area.

Step 4: Integrate NOAA High Tide Flooding Likelihood

NOAA's forecast maintains a low flood likelihood with a 0.0% chance for 2024-10-26. The distance to the flood threshold is -2.22 meters, indicating tides are well below levels of concern.

Step 5: Synthesize Information and Forecast Flood Category

Considering the sustained high barometric pressure, lower tide heights, moderate wind conditions, and NOAA's low flood likelihood, the flood category for 2024-10-26 is assessed as Category 1, indicating no risk of flooding.

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.