Redondo Beach, WA
CATEGORY 1
WHAT
No flooding is expected. Despite relatively high tides (approaching 20 feet) in the late morning and late evening, the barometric pressure is extremely high (over 1033 hPa). Historical data shows that low barometric pressure (near or below 992.8 hPa) in combination with high tides is a key driver of coastal flooding. Given the current high pressure, these conditions do not align with past flooding events.
WHEN
Around the high tide periods of 10:30 AM and 10:12 PM PST.
IMPACTS
No coastal flooding is anticipated. Normal tidal fluctuations may briefly cover low-lying beach areas, but no inundation of roads or property is expected.
• NOAA’s Flood Likelihood for this date is rated “Low” at 1.5%.
• Historical Category 3 or higher events typically involve significantly lower pressure (often in the 1000 hPa range or below) combined with similar or higher tide levels.
• Wind speeds remain low, and wind direction does not favor onshore flow that could exacerbate flooding.
CATEGORY 1
WHAT
No flooding is expected. While the midday high tide is notable (near 19–20 feet), barometric pressure remains above 1030 hPa, which is historically associated with stable, non-flooding conditions.
WHEN
Main high tide risk period around 11:12 AM PST.
IMPACTS
No anticipated impacts apart from typical high-tide shoreline coverage. Roadways and business areas along the immediate coast are not likely to be affected.
• NOAA’s Flood Likelihood for this date is “Low” at 0.6%.
• The comparison with historical moderate or severe flood events indicates that the current high atmospheric pressure significantly reduces the probability of coastal flooding.
CATEGORY 1
WHAT
No flooding is expected. Tidal peaks near 19 feet coincide with still relatively high pressure (above 1024 hPa). These conditions align with a stable weather pattern, making flooding unlikely.
WHEN
Notable high tides expected near 12:00 AM and 11:48 AM PST.
IMPACTS
No impacts beyond the usual coverage of the low-lying beach zone. No additional preparedness actions for flooding are warranted.
• NOAA’s stated Flood Likelihood is just 0.1%, reflecting very little threat.
• Historically, Category 4 or 5 flooding events featured pressure readings well below 1002 hPa paired with high tides over 20 feet. Today’s conditions do not indicate anything comparable.
You should monitor later forecasts and be alert for any changes in conditions. Those living in areas prone to flooding should always remain prepared to take action, but no protective measures (e.g., sandbags) appear necessary at this time given the current data.
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.