Flood Watch

Redondo Beach, WA

Day 1: 2024-12-18

CATEGORY 4

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

WHEN From 7:30 AM to 8:30 AM PST.

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

ADDITIONAL DETAILS...

• Barometric Pressure: The barometric pressure at the time of high tide (20.586 ft at 07:54 AM) is 1009 hPa, which is lower than the previous Category 4 event (1016 hPa) but higher than pressures associated with more severe historical flooding.
• Tide Height: The tide height matches the previous Category 4 event on 12/18/2024, indicating a similar flood potential.
• Wind Direction and Speed: Winds are from the south-southwest at 16 mph, similar to past Category 4 events, potentially contributing to higher water levels along the coast.
• NOAA High Tide Flooding Likelihood: NOAA forecasts a high flood likelihood with a 10.0% chance, matching the likelihood during previous minor flooding events.
• Comparison with Historical Events: Conditions closely resemble the Category 4 event on 12/18/2024, suggesting a similar impact level.

Day 2: 2024-12-19

CATEGORY 2

WHAT No risk of flooding expected.

WHEN No flood risk anticipated for this day.

IMPACTS - No significant impacts expected.

ADDITIONAL DETAILS...

• Barometric Pressure: At the time of high tide (20.351 ft at 08:36 AM), the pressure is 1028 hPa, significantly higher than in historical flooding events, indicating stable weather conditions.
• Tide Height: The tide height is slightly lower than Day 1 and below levels associated with flooding in historical data.
• Wind Direction and Speed: Minimal winds at 2-4 mph from variable directions reduce the risk of wind-driven tidal surges.
• NOAA High Tide Flooding Likelihood: NOAA indicates a low flood likelihood with a 3.5% chance, further suggesting minimal flood risk.
• Comparison with Historical Events: Higher pressure and lower tide heights compared to historical flood events suggest no flooding is expected.

Day 3: 2024-12-20

CATEGORY 1

WHAT No risk of flooding expected.

WHEN No flood risk anticipated for this day.

IMPACTS - No significant impacts expected.

ADDITIONAL DETAILS...

• Barometric Pressure: The pressure during the high tide (20.090 ft at 09:12 AM) is 1026 hPa, indicating stable atmospheric conditions with low flood risk.
• Tide Height: The tide height is the lowest among the three days and below thresholds linked to flooding in historical records.
• Wind Direction and Speed: Winds are light at 2-4 mph, not contributing to any increase in flooding risk.
• NOAA High Tide Flooding Likelihood: NOAA forecasts a low flood likelihood of 1.4%, the lowest in the three-day period.
• Comparison with Historical Events: Conditions do not align with any historical flooding events, supporting the assessment of no flood risk.

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.