Flood Watch

Redondo Beach, WA

Day 1: December 1, 2024

CATEGORY 3

WHAT Minor coastal flooding is possible. There may be minor inundation near shorelines and low-lying areas.

WHEN From 5:00 AM to 7:00 AM PST.

IMPACTS High tides may lead to minor flooding of low-lying areas, such as beaches and waterfront parks. No significant property damage is expected.

ADDITIONAL DETAILS...

Forecast Reasoning:

Step 1: Assess Barometric Pressure The barometric pressure is 1008.43 hPa, which is significantly higher than the critical threshold of 992.8 hPa observed in historical severe flood events. This indicates stable weather conditions with a lower likelihood of severe flooding.

Step 2: Evaluate Tide Height The tide height is forecasted to peak at 19.70 feet at 6:00 AM. This is higher than the historical Category 3 event (17.460 feet) but lower than Category 4 and 5 events, which were over 21 feet. The tide height suggests a moderate risk for minor coastal flooding.

Step 3: Consider Wind Direction and Speed Wind speeds are low, and no significant wind directions are expected to exacerbate flooding conditions. This reduces the overall flood risk.

Step 4: Integrate NOAA High Tide Flooding Likelihood NOAA's forecast indicates a low flood likelihood of 0.2% for December 1, with the tide level 1.46 meters below the flood threshold. This supports the assessment of a lower flood risk.

Step 5: Synthesize Information and Forecast Flood Category Considering the moderately high tide and higher barometric pressure, along with NOAA's low flood likelihood, the flood potential is categorized as Category 3. This indicates conditions close to a flood event worth monitoring but unlikely to cause flood damage.


Day 2: December 2, 2024

CATEGORY 2

WHAT No flooding is expected. Normal coastal conditions anticipated.

WHEN Not applicable.

IMPACTS No impacts are expected. Coastal areas will experience typical tidal conditions without significant flooding risk.

ADDITIONAL DETAILS...

Forecast Reasoning:

Step 1: Assess Barometric Pressure The barometric pressure is 1019.45 hPa, well above the critical threshold, indicating stable and calm weather conditions.

Step 2: Evaluate Tide Height The tide height peaks at 19.95 feet at 6:36 AM. While slightly higher than Day 1, it remains below historical flood levels and does not pose a significant flooding risk.

Step 3: Consider Wind Direction and Speed Wind speeds are minimal with no adverse wind directions expected to contribute to flooding.

Step 4: Integrate NOAA High Tide Flooding Likelihood NOAA's forecast shows a low flood likelihood of 0.6% for December 2, with the tide level 1.26 meters below the flood threshold, indicating minimal risk.

Step 5: Synthesize Information and Forecast Flood Category Given the high barometric pressure, moderate tide height, and low flood likelihood, the flood potential is categorized as Category 2, representing no risk of flooding.


Day 3: December 3, 2024

CATEGORY 3

WHAT Minor coastal flooding is possible. There may be minor inundation near shorelines and low-lying areas.

WHEN From 5:30 AM to 7:30 AM PST.

IMPACTS High tides may lead to minor flooding of low-lying areas, such as beaches and waterfront parks. No significant property damage is expected.

ADDITIONAL DETAILS...

Forecast Reasoning:

Step 1: Assess Barometric Pressure The barometric pressure is 1019.51 hPa, significantly higher than the critical threshold, indicating stable weather conditions with low flood risk due to atmospheric pressure.

Step 2: Evaluate Tide Height The tide height is forecasted to peak at 20.06 feet at 7:12 AM. This is slightly higher than Day 1 and Day 2 but remains below historical Category 4 and 5 flood events.

Step 3: Consider Wind Direction and Speed Wind conditions are calm with no significant wind direction expected to influence the flood risk.

Step 4: Integrate NOAA High Tide Flooding Likelihood NOAA's forecast indicates a low flood likelihood of 1.1% for December 3, with the tide level 1.12 meters below the flood threshold, suggesting a low probability of flooding.

Step 5: Synthesize Information and Forecast Flood Category Despite the marginally higher tide, the high barometric pressure and low flood likelihood suggest a moderate risk. Therefore, the flood potential is categorized as Category 3, indicating conditions close to a flood event worth monitoring but unlikely to cause flood damage.


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.