Flood Watch

Redondo Beach, WA


Day 1: 2025-03-20

CATEGORY 2

WHAT
No flooding is expected. Although one of the higher tides for this period (around 17.7 ft) will occur near 07:30 AM and again later in the evening around 22:12, barometric pressure remains above critical low-pressure thresholds, and NOAA’s flood likelihood is 0%.

WHEN
Peak high tides on 2025-03-20 at approximately 07:30 AM and 10:12 PM – 10:30 PM PST.

IMPACTS
No discernible flooding impacts are anticipated. Coastal roads and beaches should remain clear under these conditions.

ADDITIONAL DETAILS...

• Barometric pressure readings around 1001–1004 hPa indicate relatively stable conditions compared to lower-pressure historical flood events.
• NOAA CO-OPS assigns a 0.0% flood likelihood for this date, which aligns with the absence of any anticipated coastal flooding.
• Historically, even marginal Category 3 events (e.g., 12/27/2023) had a confirmed NOAA “true flood likelihood.” In contrast, 03/20/2025 shows no such flood signal.


Day 2: 2025-03-21

CATEGORY 2

WHAT
Again, no flooding is forecast. The highest tides reach near or just over 17.2 ft around 08:00 AM and near midnight, but the barometric pressure remains well above critical low-pressure levels.

WHEN
Peak high tides on 2025-03-21 at approximately 08:00 AM and again near 11:48 PM PST.

IMPACTS
No significant coastal flooding impacts are expected. Local beaches and shoreline infrastructure should remain unaffected.

ADDITIONAL DETAILS...

• Barometric pressure is roughly 1000–1008 hPa, still noticeably higher than the ~992.8 hPa commonly associated with more severe events.
• NOAA reports a 0.0% flood likelihood on this date as well, further confirming low flood potential.
• Compared with past Category 3 or 4 events, the lower tide heights and higher pressures reduce the chance of even minor flooding.


Day 3: 2025-03-22

CATEGORY 1

WHAT
No risk of flooding is expected. Tides peak around midday (approximately 15:00) near 10 ft, well below historically significant levels.

WHEN
Highest tide midday (around 15:00) and another in the early evening (about 18:24), but neither is sufficiently high to approach flood thresholds.

IMPACTS
No anticipated flood-related impacts.

ADDITIONAL DETAILS...

• With barometric pressure hovering around 1007 hPa and tides under 17 ft for much of the day, conditions are stable.
• NOAA continues to rate the flood likelihood as 0.0%.
• This is significantly lower than major flood references (e.g., 12/27/2022 Category 5 event with ~22 ft tides and very low pressure).


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.