Flood Watch

Redondo Beach, WA

Day 1: 2024-11-07

CATEGORY 2

WHAT No flooding is expected. High tides will reach up to approximately 19.14 feet, but with high barometric pressure and minimal winds, the flood risk remains low.

WHEN From 09:00 AM to 10:00 AM PST.

IMPACTS No significant impacts anticipated. Normal tidal conditions without flooding concerns.

ADDITIONAL DETAILS...

Step 1: Assess Barometric Pressure The barometric pressure is high at approximately 1030 hPa during the peak high tide. This is significantly higher than pressures observed during historical flood events, indicating stable weather conditions.

Step 2: Evaluate Tide Height The tide height peaks at around 19.14 feet, which is higher than the historical Category 3 event but lower than the Category 4 and 5 events. Without accompanying low barometric pressure, this tide height alone is unlikely to cause flooding.

Step 3: Consider Wind Direction and Speed Wind speeds are minimal at around 2 km/h from the northeast (wind direction 50 degrees). Such low wind speeds and direction do not contribute to increased flood risk.

Step 4: Integrate NOAA High Tide Flooding Likelihood NOAA's forecast indicates a low flood likelihood with a 0.0% probability for this date, supporting the assessment that flooding is unlikely.

Step 5: Synthesize Information and Forecast Flood Category Considering the high barometric pressure, moderate tide height, minimal wind speeds, and NOAA's low flood likelihood, the flood category for this day is assessed as Category 2, indicating no risk of flooding.


Day 2: 2024-11-08

CATEGORY 2

WHAT No flooding is expected. High tides will reach up to approximately 19.12 feet, with stable atmospheric conditions and moderate winds.

WHEN From 10:00 AM to 11:00 AM PST.

IMPACTS No significant impacts anticipated. Standard tidal variations without flooding concerns.

ADDITIONAL DETAILS...

Step 1: Assess Barometric Pressure Barometric pressure is high, starting at approximately 1026 hPa and slightly decreasing to 1018 hPa during the day, still well above thresholds associated with flooding events.

Step 2: Evaluate Tide Height The tide height peaks at around 19.12 feet, similar to Day 1, and lower than heights observed during historical Category 4 and 5 flood events.

Step 3: Consider Wind Direction and Speed Wind speeds increase to around 14 km/h from the south (wind direction 176 degrees). While higher than Day 1, these wind conditions are not sufficient to significantly impact flood risk.

Step 4: Integrate NOAA High Tide Flooding Likelihood NOAA indicates a low flood likelihood with a 0.0% probability, reinforcing the low flood risk assessment for the day.

Step 5: Synthesize Information and Forecast Flood Category Given the consistently high barometric pressure, moderate tide heights, and NOAA's low flood likelihood, the flood category remains at Category 2, indicating no risk of flooding.


Day 3: 2024-11-09

CATEGORY 3

WHAT Minor coastal flooding is possible. Slightly elevated tide levels combined with decreasing barometric pressure warrant monitoring, though significant flood damage is unlikely.

WHEN From 11:00 AM to 12:00 PM PST.

IMPACTS Minor flooding in low-lying areas is possible. Small water accumulations may occur near shorelines and coastal walkways.

ADDITIONAL DETAILS...

Step 1: Assess Barometric Pressure Barometric pressure decreases to approximately 1012 hPa during the peak high tide. This is lower than the previous days but still higher than pressures observed in historical severe flood events.

Step 2: Evaluate Tide Height The tide height peaks at around 19.23 feet, slightly higher than on Days 1 and 2 but still below the levels of historical Category 4 and 5 events.

Step 3: Consider Wind Direction and Speed Wind speeds increase to about 13 km/h from the south-southwest (wind direction 170-193 degrees). This wind direction can contribute to higher water levels but is not strong enough to significantly elevate flood risk.

Step 4: Integrate NOAA High Tide Flooding Likelihood NOAA's forecast continues to indicate a low flood likelihood with a 0.0% probability. However, the combination of lower barometric pressure and higher tides suggests a need for caution.

Step 5: Synthesize Information and Forecast Flood Category Considering the decreasing barometric pressure, slightly elevated tide heights, and moderate winds, conditions are close to a flood event but remain unlikely to cause significant flood damage. Therefore, the flood category for this day is assessed as Category 3, indicating that monitoring is advisable.


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.