Flood Watch

Redondo Beach, WA

Day 1: 2026-03-18

CATEGORY 2

WHAT
Overall tidal heights near 19.4 ft are expected, but barometric pressure remains above the low-pressure thresholds historically associated with flooding. NOAA indicates a 0.0% flood likelihood.

WHEN
Highest tides around 4:30 AM and late afternoon (approximately 4:24 PM local time).

IMPACTS
No flooding is anticipated. Conditions are not expected to threaten public areas or property.

ADDITIONAL DETAILS...

• Barometric pressure near 1009.94–1012.77 hPa is significantly higher than the 992.8 hPa threshold linked to many past flood events.
• Compared with historical Category 3+ incidents, these tides, while moderately high, do not coincide with both low pressure and high flood likelihood.
• NOAA data for 03/18 shows a 0.0% flood probability, consistent with Category 2 (no significant flood risk).


Day 2: 2026-03-19

CATEGORY 2

WHAT
Tidal heights may reach around 19.6 ft in the early morning, but barometric pressure remains moderate (around 1011.89 hPa at peak tide). NOAA indicates a 0.0% flood likelihood.

WHEN
Highest tides expected just before 5:00 AM, with another elevated tide late afternoon/early evening.

IMPACTS
No flood-related impacts are expected. Low-lying roads and shorelines should experience normal tidal conditions.

ADDITIONAL DETAILS...

• Even though the tide height is somewhat elevated, barometric pressure is not sufficiently low to exacerbate flooding.
• No strong onshore winds or other aggravating factors are present.
• Historical flooding events often involved significantly lower pressure and higher NOAA flood likelihood percentages.


Day 3: 2026-03-20

CATEGORY 2

WHAT
Morning tide near 19.8 ft, with pressures around 1016.9 hPa, well above typical flood-trigger levels. NOAA forecasts a 0.1% flood likelihood.

WHEN
Peak tide in the early morning (about 5:18 AM), with a secondary peak late in the day around 6:06 PM.

IMPACTS
No notable flood impacts are expected. Coastal areas will experience routine high-tide conditions without significant inundation.

ADDITIONAL DETAILS...

• Pressure remains much higher than the critical 992.8 hPa threshold historically linked to coastal flooding in this region.
• The NOAA flood likelihood for 03/20 remains very low at 0.1%.
• Historical Category 3–5 floods typically had tides above 20 ft combined with lower pressure or a higher flood likelihood.


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.