Redondo Beach, WA
CATEGORY 2
WHAT Minor coastal flooding is possible due to high tide levels, but current barometric pressure readings suggest a lower likelihood of severe weather conditions contributing to significant flooding.
WHEN From 03:00 AM to 04:00 AM PST and from 05:00 PM to 06:00 PM PST, coinciding with the high tides.
IMPACTS Possible minor flooding of very low-lying areas and roads near the shoreline. Water may approach infrastructure closest to the water's edge.
Comparing the current barometric pressure readings with historical data, we see that the pressure is significantly higher than during past flood events, suggesting less severe weather conditions. The high tide levels are notable but still below the thresholds that have historically led to major flooding. The NOAA Flood Likelihood for this date is low, which supports the assessment of a lower flood risk category.
CATEGORY 3
WHAT Elevated risk of coastal flooding due to higher tide levels. Weather conditions should be monitored closely.
WHEN From 04:00 AM to 05:00 AM PST and around midday from 01:00 PM to 02:00 PM PST during the expected high tides.
IMPACTS Potential for minor to moderate flooding of low-lying areas, parks, and roads near the shoreline. Isolated road closures may be necessary.
The barometric pressure on this day is closer to historical flood event levels, which increases concern for potential flooding, especially when combined with high tide levels. The NOAA Flood Likelihood remains low; however, given the slightly lower barometric pressure and higher tides than Day 1, there is an elevated risk that warrants a higher category rating.
CATEGORY 4
WHAT Likely flooding with potential for property damage due to significantly lower barometric pressure and sustained high tide levels.
WHEN From approximately 05:00 AM to 06:00 AM PST and again from around 02:00 PM to 03:00 PM PST during peak high tides.
IMPACTS Likely flooding of low-lying areas, parks, roads, and possibly property near the shoreline. Road closures are more probable, and there may be moderate impacts on property and infrastructure.
The barometric pressure on Day 3 is much lower than on previous days and is approaching the threshold that has been associated with more serious flooding events in the past. The tide level remains elevated, and when combined with the lower pressure, it significantly increases the risk of flooding. The NOAA Flood Likelihood shows a slight increase in percentage, indicating a small but notable risk increase. This day's conditions are most similar to historical events that have led to Category 4 flood events, hence the elevated category rating.
Residents and businesses near shorelines and low-lying areas should remain vigilant over the next three days. While Day 1 shows a lower risk of significant impacts, Days 2 and especially Day 3 present increasing risks for flooding. Prepare by securing outdoor items that could be affected by rising water levels and have a plan in place for possible road closures or evacuations if advised by local authorities. Continue to monitor updates from local weather services and NOAA for any changes in forecasts or warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop.