Flood Watch

Redondo Beach, WA

Day 1: 2024-09-15

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 01:00 AM to 04:00 AM PST and from 03:00 PM to 06:00 PM PST.

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

ADDITIONAL DETAILS...

The barometric pressure for the high tides on this day is relatively high (1009.67 hPa at 01:18 AM and 1010.19 hPa at 03:36 PM), which reduces the likelihood of severe flooding. The tide heights are significant but not extreme, with the highest tide reaching approximately 19.008 feet. Wind speeds are moderate, and the wind direction is not particularly concerning for exacerbating flood conditions.

Day 2: 2024-09-16

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 02:00 AM to 05:00 AM PST and from 04:00 PM to 07:00 PM PST.

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

ADDITIONAL DETAILS...

The barometric pressure for the high tides on this day is relatively high (1007.25 hPa at 02:18 AM and 1017.31 hPa at 04:00 PM), which reduces the likelihood of severe flooding. The tide heights are significant but not extreme, with the highest tide reaching approximately 19.35 feet. Wind speeds are moderate, and the wind direction is not particularly concerning for exacerbating flood conditions.

Day 3: 2024-09-17

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 03:00 AM to 06:00 AM PST and from 04:30 PM to 07:30 PM PST.

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

ADDITIONAL DETAILS...

The barometric pressure for the high tides on this day is relatively high (1017.89 hPa at 03:18 AM and 1015.63 hPa at 04:30 PM), which reduces the likelihood of severe flooding. The tide heights are significant but not extreme, with the highest tide reaching approximately 19.669 feet. Wind speeds are moderate, and the wind direction is not particularly concerning for exacerbating flood conditions.

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:

Step-by-step analysis was conducted based on provided data:

  1. Assess Barometric Pressure:
  2. All days have relatively high barometric pressures (above the critical threshold of ~992 hPa), indicating less severe weather conditions.

  3. Evaluate Tide Height:

  4. Tide heights are significant but do not reach extreme levels observed in historical Category 4 or higher events.

  5. Consider Wind Direction:

  6. Wind directions are varied but do not align with historical severe flood events that had specific wind patterns exacerbating conditions.

  7. Integrate NOAA High Tide Flooding Likelihood:

  8. NOAA's forecast indicates a low likelihood of flooding for all three days, supporting a lower flood category assessment.

  9. Synthesize Information:

  10. Given the combination of high barometric pressure, significant but not extreme tide heights, moderate wind speeds, and NOAA's low flood likelihood forecast, all three days are categorized as Category 2 events with minor coastal flooding expected.

This analysis ensures a comprehensive understanding of potential flood risks based on current data while emphasizing safety and preparedness actions for residents in vulnerable areas.