Redondo Beach, WA
CATEGORY 3
WHAT Minor coastal flooding possible. Potential inundation of up to 1 foot above ground level near shorelines and low-lying areas.
WHEN From 07:00 AM to 09:00 AM PST.
IMPACTS Minor flooding of low-lying areas, parks, and roads. Isolated road closures possible.
Forecast Reasoning:
Step 1: Assess Barometric Pressure The barometric pressure during the high tide at 08:18 AM is 1020.98 hPa. This is significantly higher than in previous severe flood events, indicating stable atmospheric conditions and a lower likelihood of extreme flooding.
Step 2: Evaluate Tide Height The tide height is 19.992 ft at its peak, higher than the historical Category 3 event (17.460 ft) but lower than the Category 4 event (21.506 ft). While the tide height is significant, the absence of low barometric pressure reduces the overall flood risk.
Step 3: Consider Wind Direction Wind speeds are moderate, ranging from 11 to 18 km/h (7 to 11 mph), with an easterly to southeast wind direction. These conditions are less likely to contribute significantly to coastal flooding.
Step 4: Integrate NOAA High Tide Flooding Likelihood NOAA's flood likelihood is low at 2.6%, with the projected water levels being 0.82 meters below the flood threshold. This suggests a low probability of flooding.
Step 5: Synthesize Information and Forecast Flood Category Considering the high barometric pressure, significant but not extreme tide height, moderate wind conditions, and NOAA's low flood likelihood, the flood category for November 19, 2024, is predicted to be Category 3. This indicates conditions are close to a flood event and worth monitoring but unlikely to cause flood damage.
CATEGORY 2
WHAT No risk of flooding. Coastal conditions are expected to remain normal.
WHEN No flood risk expected throughout the day.
IMPACTS No flooding impacts anticipated.
Forecast Reasoning:
Step 1: Assess Barometric Pressure The barometric pressure during the high tides at 09:12 AM and 07:00 PM is 1017.28 hPa and 1016.84 hPa, respectively. These values are substantially higher than those associated with historical flood events, indicating stable weather conditions.
Step 2: Evaluate Tide Height Tide heights are expected to peak at approximately 19.762 ft around 10:00 AM, slightly lower than Day 1. These levels are below the thresholds observed in historical flooding events.
Step 3: Consider Wind Direction Wind speeds are moderate, with wind directions primarily from the southeast. Wind conditions are not expected to significantly impact tidal elevations.
Step 4: Integrate NOAA High Tide Flooding Likelihood NOAA's flood likelihood is very low at 0.6%, with water levels projected to be 1.1 meters below the flood threshold. This indicates a negligible risk of flooding.
Step 5: Synthesize Information and Forecast Flood Category Given the high barometric pressure, moderate tide heights, and NOAA's minimal flood likelihood, the flood category for November 20, 2024, is determined to be Category 2. This represents no substantial flood risk under the current conditions.
CATEGORY 2
WHAT No risk of flooding. Normal coastal conditions are expected.
WHEN No flood risk expected throughout the day.
IMPACTS No flooding impacts anticipated.
Forecast Reasoning:
Step 1: Assess Barometric Pressure The barometric pressure during the high tides at 10:06 AM and 08:12 PM is 1022.77 hPa. This high pressure indicates very stable atmospheric conditions, reducing the likelihood of severe weather-related flooding.
Step 2: Evaluate Tide Height Tide heights are projected to peak at approximately 19.753 ft around 09:54 AM. This is lower than the tide heights associated with historical flooding events, remaining below critical thresholds.
Step 3: Consider Wind Direction Wind speeds are low to moderate, with directions mainly from the northeast. These wind conditions are not conducive to increasing flood risk.
Step 4: Integrate NOAA High Tide Flooding Likelihood NOAA's flood likelihood is extremely low at 0.1%, with water levels expected to be 1.4 meters below the flood threshold. This suggests virtually no chance of flooding.
Step 5: Synthesize Information and Forecast Flood Category Considering the very high barometric pressure, moderate tide heights, and NOAA's negligible flood likelihood, the flood category for November 21, 2024, is assessed as Category 2. This indicates no substantial flood risk.
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.