Flood Watch

Redondo Beach, WA

DayInfo1: Day 1: 2025-01-05

CATEGORY 3

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

WHEN From 7:00 AM to 10:00 AM PST.

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

ADDITIONAL DETAILS...

Step 1: Assess Barometric Pressure: The barometric pressure at the time of the high tide (09:06 AM) is 1025.29 hPa. This is significantly higher than in historical severe flood events, indicating less severe weather conditions and a reduced likelihood of major flooding.

Step 2: Evaluate Tide Height: The tide height is 20.740 ft, which is higher than the historical Category 3 event (17.460 ft) and comparable to the Category 4 event (20.586 ft). This suggests a notable risk for minor coastal flooding.

Step 3: Consider Wind Direction and Speed: The wind direction is SSW at 193 degrees with a speed of 12 km/h (7 mph). This is less intense than in higher-category historical events, indicating a lesser impact on potential flooding from wind-driven tides.

Step 4: Integrate NOAA High Tide Flooding Likelihood: NOAA's forecast indicates a high likelihood of flooding with a score of 15.8% and a distance to threshold of -0.42 m. This likelihood is higher than in some historical Category 4 events, suggesting increased attention is warranted.

Step 5: Synthesize Information and Forecast Flood Category: Considering the high barometric pressure reducing severe weather risk, the significant tide height, and the elevated NOAA flood likelihood, the flood potential is categorized as Category 3. Monitoring is recommended due to the possible minor flooding, but major property damage is unlikely.


DayInfo2: Day 2: 2025-01-06

CATEGORY 3

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

WHEN From 7:30 AM to 10:30 AM PST.

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

ADDITIONAL DETAILS...

Step 1: Assess Barometric Pressure: The barometric pressure at the time of the high tide (09:42 AM) is 1021.03 hPa, slightly lower than the previous day but still higher than in historical severe events, indicating stable weather conditions.

Step 2: Evaluate Tide Height: The tide height is 20.685 ft, marginally lower than Day 1 but still significant compared to historical data, indicating a continued risk of minor coastal flooding.

Step 3: Consider Wind Direction and Speed: The wind direction is N at 4 degrees with a speed of 16 km/h (10 mph). Wind impact remains moderate and less severe than in higher-category events.

Step 4: Integrate NOAA High Tide Flooding Likelihood: NOAA's forecast shows a high likelihood of flooding with a score of 11.3% and a distance to threshold of -0.53 m. Although lower than Day 1, it still indicates a noteworthy possibility of minor flooding.

Step 5: Synthesize Information and Forecast Flood Category: Taking into account the stable barometric pressure, significant tide height, and NOAA's flood likelihood, the flood potential remains at Category 3. Continued monitoring is advised due to the potential for minor flooding, though major property damage is unlikely.


DayInfo3: Day 3: 2025-01-07

CATEGORY 2

WHAT No flooding expected.

WHEN No significant high tide flooding anticipated.

IMPACTS No significant impacts anticipated.

ADDITIONAL DETAILS...

Step 1: Assess Barometric Pressure: The barometric pressure is 1023.92 hPa, indicating stable and calm weather conditions, reducing the likelihood of flooding.

Step 2: Evaluate Tide Height: The tide height peaks at 20.534 ft, slightly lower than the previous two days and below historical flooding thresholds, suggesting minimal flood risk.

Step 3: Consider Wind Direction and Speed: Wind speeds are low, ranging from 3 to 6 km/h (2 to 4 mph), with directions varying from NNE to NE. These calm wind conditions further reduce the flood potential.

Step 4: Integrate NOAA High Tide Flooding Likelihood: NOAA's forecast indicates a high flood likelihood with a score of 6.8% and a distance to threshold of -0.67 m, which is significantly lower than previous days, indicating a decreased flood risk.

Step 5: Synthesize Information and Forecast Flood Category: With stable barometric pressure, decreasing tide heights, low wind speeds, and a reduced NOAA flood likelihood, the flood potential is categorized as Category 2. No flooding is expected, and no significant impacts are anticipated.


PA: PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor later forecasts and remain alert for possible Flood Warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop.