Redondo Beach, WA
Below is the three-day flood outlook based on the provided tide forecasts, barometric pressure data, wind conditions, and NOAA’s low flood-likelihood figures. All three days show relatively high tides (around 20 feet), but none reach or exceed the higher-risk 21-foot benchmark, and barometric pressures remain above critically low levels (near or below 992.8 hPa). NOAA’s likelihood of flooding is low each day. Although the tides are fairly high, these factors together indicate that any flooding that does occur should be minor and not likely to cause damage. Therefore, each day is categorized as a Category 3 event: worth monitoring closely but unlikely to produce significant impacts.
CATEGORY 3
WHAT
High tides near 20.2 feet combined with barometric pressures around 998–1001 hPa. This places conditions near a flood event threshold, but actual flooding, if any, is expected to be minimal.
WHEN
Primarily from the early morning through mid-morning hours (peak around 06:42 AM PST). A secondary high tide occurs in the evening (around 06:54–07:00 PM PST) but with a slightly higher barometric pressure.
IMPACTS
Minor or no inundation in normally dry low-lying areas. Flooding damage is unlikely. Caution is advised along the immediate shoreline.
Tide levels are comparable to some past Category 3 events (for example, 20.68 ft on 01/06/2025). However, pressure is not as high as that event, so conditions warrant continued observation. NOAA indicates a flood likelihood of only 0.7% for this date.
CATEGORY 3
WHAT
A high tide peak close to 20.2 feet again, but with barometric pressures dipping slightly lower (995–994 hPa). These conditions still remain above the critical low-pressure flood threshold and below the 21-foot tide level for major concern.
WHEN
Highest risk near 07:06 AM PST with another high tide in the evening (around 07:54–08:00 PM PST), though that evening tide is lower in height.
IMPACTS
Possibility of brief, minor ponding in vulnerable spots. Significant flooding or property damage is unlikely.
Although the barometric pressure is marginally lower than Day 1, the tide does not exceed historical major flood levels. NOAA’s forecasted flood likelihood of 1.0% remains low. Conditions align with historical Category 3 parameters.
CATEGORY 3
WHAT
Tides approaching 20 feet and barometric pressures around 999–1000 hPa. NOAA flood likelihood is even lower on this day.
WHEN
Main tidal peak near 07:36 AM PST; a secondary significant tide occurs late afternoon (around 04:12 PM PST), though neither tide surpasses the 21-foot threshold.
IMPACTS
Minor to no flooding is expected. Any water run-up into low-lying roads or shorelines should be minimal.
Both tide heights and barometric pressures are similar to prior moderate-risk events. The very low NOAA likelihood of about 0.2% further reduces overall flood concern. Historical comparisons again signal a Category 3 classification.
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.
• Categories 1-2: No risk of flooding.
• Category 3: Close to a flood event and worth monitoring.
• Category 4: Flooding is likely however, it is uncertain if this will cause major property damage.
• Category 5: Likely to flood and cause property damage.
• Categories 6-7: Extremely high risk of flooding and property damage.