Flood Watch

Redondo Beach, WA


Day 1: 2025-03-22

CATEGORY 1

WHAT
No coastal flooding is expected. Tides forecast around 9–10 ft at the recognized high-tide times, with relatively moderate barometric pressure (above 1009 hPa).

WHEN
Highest water levels anticipated near mid-afternoon (15:00 PST) and early evening (18:24 PST).

IMPACTS
No significant impacts are expected. Typical low-lying coastal areas should remain clear of flooding.

ADDITIONAL DETAILS...

• NOAA’s Flood Likelihood is 0% for 2025-03-22.
• Compared to historical events, today’s tide heights are well below those associated with past flooding scenarios (e.g., 17+ ft events).
• Southerly winds are light and not expected to contribute to any localized flooding.


Day 2: 2025-03-23

CATEGORY 3

WHAT
Close to a flood event and worth monitoring, but widespread flood damage is not expected. Early morning high tide could briefly push water levels into normally dry areas.

WHEN
• Primary high tide of interest occurs around 01:24 PST (tide approx. 17.8 ft, barometric pressure ~1003.6 hPa).
• A second high tide mid-morning (around 10:12 PST) is lower (approx. 16.5 ft) but paired with somewhat lower pressure (near 996.6 hPa).

IMPACTS
• Minor inundation in the most flood-prone spots (very low-lying stretches near the beach).
• Little to no property damage is expected, but these water levels can require watchfulness for brief ponding in ordinary trouble spots.

ADDITIONAL DETAILS...

• Historical reference (12/27/2023, Category 3 at 17.46 ft and barometric pressure ~1006 hPa) is similar in tide height.
• NOAA’s Flood Likelihood remains at 0%, indicating overall low concern, but the tide height is near thresholds from past minor flood events.
• Winds will be southerly, not the W/NW direction typically associated with severe onshore surges.


Day 3: 2025-03-24

CATEGORY 3

WHAT
Another day of slightly higher tides (peaking up to around 18.2 ft overnight into the early morning) that could briefly approach minor flood levels, though major damage is not expected.

WHEN
• Key high tide periods are around early morning (02:00–02:30 PST) and late morning to midday (11:42 PST).
• Barometric pressure in the 1007 hPa range, not excessively low but worth monitoring in combination with the higher tides.

IMPACTS
• Minor or brief inundation possible in typical low-lying coastal areas.
• No significant property damage anticipated under current conditions.

ADDITIONAL DETAILS...

• Despite the higher relative tide, the barometric pressure is not as low as in severe historical floods (e.g., under 992 hPa).
• NOAA’s Flood Likelihood is still reported at 0%.
• Compared to Category 4 or higher events (which often coincide with tides above 19–20 ft under lows near 992 hPa), these conditions remain closer to minor-flood thresholds.


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.