Redondo Beach, WA
CATEGORY 3
WHAT Minor coastal flooding possible. Close to a flood event and worth monitoring, but unlikely to cause significant flood damage.
WHEN From 7:00 AM to 9:00 AM PST.
IMPACTS Minor flooding of low-lying areas, parks, and roads. Isolated road closures possible.
Barometric Pressure: The mean barometric pressure at high tide is 1023.22 hPa, which is significantly higher than pressures observed during historical severe flood events (e.g., <= 992.8 hPa in Category 5 events). High pressure indicates stable weather conditions, reducing the likelihood of severe flooding.
Tide Height: The predicted tide height is 20.629 ft at 8:00 AM, which is higher than the historical Category 3 event (17.460 ft) but lower than the Category 4 and 5 events. While the tide height is significant, it is insufficient on its own to indicate a higher flood category due to the high barometric pressure.
Wind Direction and Speed: Wind speeds are low, around 3-6 mph, with wind coming from the southeast (wind direction 144 degrees). This wind pattern is less likely to contribute to coastal flooding compared to stronger winds from the south or southwest observed in higher category events.
NOAA High Tide Flooding Likelihood: NOAA forecasts a high likelihood of flooding with an 11.2% chance and a distance to threshold of -0.53 m. This likelihood is higher than some historical Category 4 events (e.g., 10.0% on 12/18/2024). However, the high barometric pressure mitigates the overall risk.
Conclusion: Considering the high barometric pressure and significant tide height, the flood potential is categorized as Category 3. Monitoring is advised, but significant flood damage is unlikely.
CATEGORY 3
WHAT Minor coastal flooding possible. Close to a flood event and worth monitoring, but unlikely to cause significant flood damage.
WHEN From 7:30 AM to 9:30 AM PST.
IMPACTS Minor flooding of low-lying areas, parks, and roads. Isolated road closures possible.
Barometric Pressure: The mean barometric pressure at high tide is 1025.19 hPa, higher than on Day 1, indicating continued stable weather conditions and further reducing the risk of severe flooding.
Tide Height: The predicted tide height is 20.712 ft at 8:30 AM, comparable to Day 1 and still below the tide heights of historical Category 4 and 5 events.
Wind Direction and Speed: Wind speeds remain low, around 3-5 mph, with winds from the southeast to south (directions between 143 and 178 degrees). These conditions are not conducive to heightened flood risk.
NOAA High Tide Flooding Likelihood: NOAA forecasts a high likelihood of flooding with a 10.8% chance and a distance to threshold of -0.55 m, slightly lower than Day 1. Despite the high likelihood, the elevated barometric pressure reduces the overall flood potential.
Conclusion: Due to the high barometric pressure and moderate tide height, the flood potential remains at Category 3. Continued monitoring is recommended, but significant flooding is unlikely.
CATEGORY 3
WHAT Minor coastal flooding possible. Close to a flood event and worth monitoring, but unlikely to cause significant flood damage.
WHEN From 8:00 AM to 10:00 AM PST.
IMPACTS Minor flooding of low-lying areas, parks, and roads. Isolated road closures possible.
Barometric Pressure: The mean barometric pressure at high tide is 1026.54 hPa, the highest of the three days, suggesting very stable atmospheric conditions and a reduced risk of severe flooding.
Tide Height: The predicted tide height is 20.740 ft at 9:06 AM, slightly higher than previous days but still below thresholds observed in higher category historical events.
Wind Direction and Speed: Wind speeds are moderate, ranging from 7-15 mph, with winds shifting from the south to southwest (directions between 190 and 231 degrees). While wind speeds are higher, they are not sufficient to significantly impact flood risk in the absence of other factors.
NOAA High Tide Flooding Likelihood: NOAA forecasts the highest likelihood over the three days, with a 15.8% chance and a distance to threshold of -0.42 m. This is higher than historical Category 4 events; however, the continued high barometric pressure and moderate tide heights mitigate the risk.
Conclusion: Despite the increased NOAA flood likelihood, the high barometric pressure and absence of other critical risk factors result in a Category 3 flood potential. Awareness and monitoring are advised, but significant flooding is not expected.
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.