Flood Watch

Redondo Beach, WA

Day 1: 2025-07-27

CATEGORY 3

WHAT
Close to a flood event, but significant inundation or damage is unlikely. The highest tides near 19.7 ft coincide with a moderately low barometric pressure around 1006 hPa.

WHEN
Potential peak impact around the evening high tide (approximately 7:24 PM local time).

IMPACTS
• Minor flooding in low-lying coastal areas is possible.
• Little to no property damage is expected.
• Brief impacts along beach access points and waterfront paths.

ADDITIONAL DETAILS...

Although the tide level is moderately high, the barometric pressure is not low enough to strongly indicate major flooding. Compared with notable Category 3 historical events (e.g., 12/27/2023), Day 1 shows a somewhat higher tide but similarly moderate pressures. NOAA’s flood likelihood forecast for 07/27 remains at 0.0%, reinforcing that more serious flooding is not anticipated.


Day 2: 2025-07-28

CATEGORY 4

WHAT
Flooding is likely, though it is expected to be moderate and not produce major property damage. Tide heights up to roughly 19.6 ft will coincide with lower barometric pressure near 995 hPa.

WHEN
Greatest concern around the evening high tide (approximately 7:54 PM local time).

IMPACTS
• Potential flooding of coastal roads and low-lying shoreline spots.
• Minor property impacts possible, primarily to areas very close to the water.
• Isolated or brief closures on low-level waterfront routes could occur.

ADDITIONAL DETAILS...

This scenario is similar to past Category 4 events where tides approached or exceeded 19 ft with fairly low barometric pressure. Even though NOAA indicates a low overall flood likelihood (0.0%), historical patterns show that the lower pressure increases the chance of moderate coastal flooding. Wind speeds are not notably high, but be alert to shifts in wind direction that can exacerbate water push along the shoreline.


Day 3: 2025-07-29

CATEGORY 4

WHAT
Another day of likely moderate flooding conditions. Tides near 19.3 ft, combined with significantly low barometric pressure around 991 hPa, raise the potential for coastal water intrusion.

WHEN
High tide around 8:18 PM local time presents the main period of concern.

IMPACTS
• Recurrent flooding in typical low-lying shoreline areas.
• Shoreline roads, parking lots, and beach pathways may experience brief but noticeable inundation.
• Structural damage to well-prepared properties is unlikely, but caution is advised for waterfront locations.

ADDITIONAL DETAILS...

Despite NOAA’s stated 0.0% flood likelihood, the very low barometric pressure aligns with historical Category 4 events, which often featured tides near or just under 20 ft alongside falling pressure. While not reaching Category 5 or higher thresholds seen with 21+ ft tides and extremely low pressure (e.g., 978–980 hPa), vigilance is advised, especially near high tide.


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.