Redondo Beach, WA
CATEGORY 3
WHAT Close monitoring of coastal conditions is advised due to high tide levels. Minor coastal flooding is unlikely but worth observing.
WHEN From 04:00 AM to 06:00 AM PST.
IMPACTS Minimal impacts expected. Low-lying areas and shorelines may experience very minor water encroachment, but significant flooding or property damage is not anticipated.
Step 1: Assess Barometric Pressure The barometric pressure at the time of the highest tide on 2024-12-28 at 04:54 AM is 1021.84 hPa. This is significantly higher than pressures observed during historical flood events (e.g., Category 4 events had pressures around 1002 hPa or lower). The high pressure suggests stable weather conditions and a lower likelihood of severe coastal flooding.
Step 2: Evaluate Tide Height The tide height at 04:54 AM is approximately 18.899 ft. This is higher than the tide height during the historical Category 3 event (17.460 ft on 12/27/2023) but lower than Category 4 events (over 20 ft). The tide height indicates a moderate risk that warrants monitoring.
Step 3: Consider Wind Direction and Speed Wind speeds around the time of high tide are moderate, with observations indicating speeds of approximately 13 mph from the south-southwest (203 degrees). This is lower than wind speeds during historical Category 4 events (over 20 mph) and does not significantly contribute to increased flood risk.
Step 4: Integrate NOAA High Tide Flooding Likelihood NOAA's flood likelihood for 2024-12-28 is low, with a likelihood percent of 0.0% and a distance to threshold of -1.99 meters. This supports the assessment of a low probability of significant flooding.
Step 5: Synthesize Information and Forecast Flood Category Considering the high barometric pressure, moderate tide height, manageable wind conditions, and NOAA's low flood likelihood, the flood category for 2024-12-28 is assessed as Category 3. This indicates that while conditions are close to a flood event and worth monitoring, significant flooding is unlikely.
CATEGORY 3
WHAT Continued potential for minor coastal concerns due to elevated tide levels. Close monitoring is recommended.
WHEN From 05:00 AM to 07:00 AM PST.
IMPACTS Minor water encroachment in low-lying coastal areas may occur. No major flooding or property damage is expected.
Step 1: Assess Barometric Pressure At the peak tide time on 2024-12-29 at 05:24 AM, the barometric pressure is 1015.68 hPa. This pressure is still higher than those associated with significant historical flood events and indicates relatively stable atmospheric conditions.
Step 2: Evaluate Tide Height The tide height is approximately 19.641 ft around the time of the highest tide. This is slightly higher than Day 1 but still below the tide heights observed during Category 4 events.
Step 3: Consider Wind Direction and Speed Wind data indicates lower speeds during this period, with minimal impact on tidal conditions. Wind direction does not align with those that have historically exacerbated flooding.
Step 4: Integrate NOAA High Tide Flooding Likelihood NOAA reports a low flood likelihood for 2024-12-29, with a likelihood percent of 0.1% and a distance to threshold of -1.52 meters. This suggests that significant flooding is unlikely.
Step 5: Synthesize Information and Forecast Flood Category Combining the moderate tide height, acceptable barometric pressure, minimal wind impact, and NOAA's assessment, the flood category remains at Category 3 for Day 2. Conditions should be monitored, but major flooding is not anticipated.
CATEGORY 3
WHAT Elevated tides continue to present a minor risk. Monitoring is advised, but significant impacts are not expected.
WHEN From 05:00 AM to 07:00 AM PST.
IMPACTS Potential for very minor inundation in the most susceptible low-lying coastal areas. Property damage is unlikely.
Step 1: Assess Barometric Pressure On 2024-12-30 at the peak tide time of 06:00 AM, the barometric pressure is 1017.24 hPa. This remains significantly higher than pressures observed during severe flood events, indicating low atmospheric contribution to flood risk.
Step 2: Evaluate Tide Height The tide height reaches approximately 20.038 ft. This is approaching, but still below, the tide heights associated with historical Category 4 events. It represents the highest tide of the three days but is mitigated by other factors.
Step 3: Consider Wind Direction and Speed Wind speeds are moderate, and directions do not align with those that have historically increased flood risks (such as winds from the west or northwest).
Step 4: Integrate NOAA High Tide Flooding Likelihood NOAA's flood likelihood for 2024-12-30 is low, with a likelihood percent of 1.1% and a distance to threshold of -1.12 meters. While slightly higher than previous days, it still indicates a low probability of significant flooding.
Step 5: Synthesize Information and Forecast Flood Category Considering the slightly higher tide but stable barometric pressure and low NOAA flood likelihood, the flood category for Day 3 is assessed as Category 3. Monitoring is recommended, but severe flooding is unlikely.
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.