Flood Watch

Redondo Beach, WA

Day 1: 2024-11-09

CATEGORY 2

WHAT No risk of flooding is expected. Tide levels are moderate, and weather conditions are stable.

WHEN No significant flooding is anticipated on this day.

IMPACTS No flood-related impacts are expected. Normal conditions will prevail.

ADDITIONAL DETAILS...

Step 1: Assess Barometric Pressure The barometric pressure is 1009.35 hPa, which is higher than pressures recorded during historical flooding events (Category 3 event at 1006.1 hPa). This indicates stable atmospheric conditions with a lower likelihood of severe weather contributing to flooding.

Step 2: Evaluate Tide Height The maximum tide height is 19.230 feet at 11:42 AM, which is higher than the historical Category 3 event (17.460 feet) but lower than Category 4 events (over 21 feet). However, without low barometric pressure, this tide height alone is insufficient to pose a significant flood risk.

Step 3: Consider Wind Direction and Speed Wind speeds are low, averaging around 5-7 mph from the SSE. This is significantly lower than wind speeds during historical flooding events (Category 4 events had wind speeds over 20 mph). The wind direction does not contribute to increased flood risk.

Step 4: Integrate NOAA High Tide Flooding Likelihood NOAA's flood likelihood is low, with a 0.0% chance of flooding and a significant distance to the threshold (-1.96m). This supports the assessment that flooding is unlikely.

Step 5: Synthesize Information and Forecast Flood Category Considering the high barometric pressure, moderate tide heights, low wind speeds, and NOAA's low flood likelihood, the conditions for Day 1 correspond to a Category 2. This indicates no risk of flooding.


Day 2: 2024-11-10

CATEGORY 1

WHAT No risk of flooding is expected. Tide levels and atmospheric conditions are normal.

WHEN No significant flooding is anticipated on this day.

IMPACTS No flood-related impacts are expected. All activities can proceed as usual.

ADDITIONAL DETAILS...

Step 1: Assess Barometric Pressure The barometric pressure is 1028.46 hPa, which is significantly higher than any historical flooding events. This denotes very stable and calm weather conditions.

Step 2: Evaluate Tide Height The maximum tide height is 19.444 feet at 12:24 PM, similar to Day 1 and still below the levels associated with historical flooding events.

Step 3: Consider Wind Direction and Speed Wind speeds are low, ranging from 3-10 mph predominantly from the S and SSE. Wind conditions are not expected to contribute to flooding.

Step 4: Integrate NOAA High Tide Flooding Likelihood NOAA indicates a low flood likelihood with a 0.0% chance and a distance to threshold of -1.78m. There are no concerns from this data.

Step 5: Synthesize Information and Forecast Flood Category With very high barometric pressure, moderate tide heights, low wind speeds, and NOAA's low flood likelihood, conditions for Day 2 correspond to a Category 1, indicating no risk of flooding.


Day 3: 2024-11-11

CATEGORY 2

WHAT No risk of flooding is expected. Weather and tide conditions remain within normal ranges.

WHEN No significant flooding is anticipated on this day.

IMPACTS No flood-related impacts are expected. Normal operations can continue uninterrupted.

ADDITIONAL DETAILS...

Step 1: Assess Barometric Pressure The barometric pressure is 1011.55 hPa, higher than in historical Category 3 events. This suggests stable weather with low risk of severe conditions contributing to flooding.

Step 2: Evaluate Tide Height The maximum tide height is 19.714 feet at 1:00 PM, slightly higher than previous days but still below historical flooding thresholds.

Step 3: Consider Wind Direction and Speed Wind speeds are higher than previous days, averaging 15-21 mph from the SE and SSW. While this is noteworthy, the wind direction and speed are still lower than those during historical Category 4 and 5 events.

Step 4: Integrate NOAA High Tide Flooding Likelihood NOAA's flood likelihood is low at 0.1%, with a distance to threshold of -1.45m. This indicates a minimal risk of flooding.

Step 5: Synthesize Information and Forecast Flood Category Considering the moderate barometric pressure, slightly higher tide heights, increased wind speeds, and NOAA's low flood likelihood, conditions for Day 3 correspond to a Category 2. While wind speeds are higher, they are not sufficient to elevate the flood risk.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.