Flood Watch

Redondo Beach, WA

Day 1: 2025-09-21

CATEGORY 3

WHAT
High tide near 19.08 ft is expected around mid-afternoon, accompanied by relatively high barometric pressure (~1020.52 hPa). Although this tide height is notable, the pressure is not low enough to substantially increase flood risk. As a result, this day is close to a flood event but unlikely to cause damage.

WHEN
Highest water levels are expected around 16:42 PST.

IMPACTS
Minor nuisance impacts, if any, in very low-lying areas. Widespread flooding is not anticipated.

ADDITIONAL DETAILS...

NOAA’s Flood Likelihood Analysis assigns a low flood probability (0.0%). Historically, higher tides combined with substantially lower pressures have led to Category 4 or above. Today’s elevated pressure mitigates the risk, keeping it at Category 3.


Day 2: 2025-09-22

CATEGORY 3

WHAT
An afternoon peak tide around 18.95 ft with barometric pressure near 1017 hPa. Tides in this range warrant attention, but the moderately high pressure reduces the overall flooding potential.

WHEN
Peak water levels around 17:00 PST.

IMPACTS
Minor issues possible in the most flood-prone spots. No major road closures or significant property damage are anticipated.

ADDITIONAL DETAILS...

NOAA’s indicated flood likelihood remains low, with 0.0% probability. While the pressure is slightly lower than on Day 1, it is still not in the range typically linked to more serious flooding.


Day 3: 2025-09-23

CATEGORY 3

WHAT
Projected high tide near 18.77 ft in the late afternoon, with a barometric pressure of about 1010.51 hPa—lower than the previous two days. Even so, NOAA’s analysis suggests minimal flood potential.

WHEN
Highest tide expected around 17:24 PST.

IMPACTS
Remains unlikely to cause damaging floods. Minor water ponding could occur in particularly vulnerable coastal spots, but widespread flooding is not forecast.

ADDITIONAL DETAILS...

Despite the lower barometric pressure, NOAA still shows a 0.0% flood likelihood. Compared with past Category 4 events, the tide is lower and the pressure notably higher than in truly severe situations. The conditions remain consistent with a Category 3 rating—close to a flood event and worth monitoring, but not expected to result in damage.


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.

CATEGORY KEY

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.