Flood Watch

Redondo Beach, WA

Day 1: 2023-12-27

CATEGORY 3

WHAT... Moderate flood risk due to high tide and favorable weather conditions. The barometric pressure is significantly higher than during previous severe events, indicating less severe weather conditions and a lower likelihood of extreme flooding. However, NOAA's predicted high likelihood of flooding and close proximity to the flood threshold height necessitates caution.

WHEN... The risk is highest around the time of high tide in the early morning and again in the late afternoon.

ADDITIONAL DETAILS...

Today’s barometric pressure readings during high tides are 1025.9097900390625 hPa in the morning and 1026.6226806640625 hPa in the afternoon, both well above the critical threshold that historically indicates potential for severe flooding. Combined with a NOAA flood likelihood of 8.4% and proximity to the threshold, conditions are similar but not as critical as the Category 3 event on 12/27/2023, suggesting caution is still warranted.

Day 2: 2023-12-28

CATEGORY 2

WHAT... Slight flood risk due to lower barometric pressure compared to Day 1, yet still above critical thresholds from historical Category 4 or higher events. Tide levels are expected to be elevated but not at extreme levels.

WHEN... Please take caution around high tides which occur in the early morning and late afternoon.

ADDITIONAL DETAILS...

With a mean pressure MSL reading of 1025.4322509765625 hPa for the morning high tide and a lower 1024.012939453125 hPa for the afternoon high tide, the barometric pressure is decreasing but still not indicative of severe weather that could cause major flooding. NOAA predicts a slightly higher flood likelihood than Day 1 at 8.8%, but this does not suggest a significant increase in flood risk, hence a Category 2 rating.

Day 3: 2023-12-29

CATEGORY 1

WHAT... Low flood risk with relatively stable weather conditions suggested by consistent barometric pressure readings and lower NOAA flood likelihood percentages.

WHEN... The likelihood of flooding is lowest on this day despite two periods of high tide.

ADDITIONAL DETAILS...

Barometric pressure remains stable at approximately 1023.6 hPa during both high tides today, which is higher than during known flooding events. NOAA's low flood likelihood of 3.9% combined with data showing a greater distance to threshold (-0.269m) than previous days suggests the risk of flooding is minimal on this day.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Residents and visitors should stay informed via official weather forecasts and local news for any updates or warnings. While the risk today is moderate to low over the course of these three days, conditions can change rapidly. Those living in areas prone to flooding should be prepared to take action should flooding develop, particularly around the times of high tide. Always adhere to advice from local authorities regarding evacuation orders or other emergency procedures.