Redondo Beach, WA
CATEGORY 2
WHAT
Tides will reach around 19 feet near the early morning high tide, accompanied by relatively high barometric pressure (about 1023 hPa). No substantial flooding is expected.
WHEN
Highest tide cycle is around 04:00 AM PST.
IMPACTS
No risk of property damage or significant inundation. Low-lying areas should remain unaffected.
• The barometric pressure remains high enough (above 1020 hPa), reducing the likelihood of significant coastal flooding despite a moderately high tide (approximately 19 feet).
• NOAA’s flood likelihood for December 3rd is low at 3.6%.
• Compared with historical events, this combination of moderate tide height and high pressure does not indicate a notable flood risk.
CATEGORY 2
WHAT
Tide heights may approach about 20.1 feet during midday. Barometric pressure near 1020 hPa is still relatively high, limiting flood potential.
WHEN
Main high tide peak around 02:48 PM PST.
IMPACTS
No flooding impacts anticipated. Normal marine activities and travel near the coast should remain unaffected.
• Although the tide briefly climbs just over 20 feet, pressure remains well above the historically low thresholds that have contributed to real flooding events.
• NOAA’s flood likelihood for December 4th is low at 3.4%.
• Historically, tides under 21 feet, coupled with barometric readings above 992.8 hPa, have not resulted in significant flooding in Redondo Beach, WA.
CATEGORY 4
WHAT
Tide heights are forecast to exceed 20 feet (around 20.6 feet near dawn) while barometric pressure drops to about 1008–1007 hPa. This combination raises the potential for coastal flooding, although widespread major property damage is not anticipated under current conditions.
WHEN
Greatest risk from the morning high tide (approx. 05:48 AM PST) into midday.
IMPACTS
Some coastal flooding is likely. Minor inundation in low-lying areas and possible short-term road closures near the shore are possible. Residents and businesses along the immediate coastline should be prepared for water encroachment.
• Barometric pressure dropping below 1010 hPa with a tide over 20 feet has historically produced moderate flooding in the area.
• NOAA’s flood likelihood for December 5th stands at 14.3%, higher than on previous days, aligning with the lower barometric pressure and higher tidal forecast.
• Compared to the 12/18/2024 Category 4 event (tide ~20.6 ft, pressure ~1016 hPa), December 5th has a similarly high tide but slightly lower pressure, which increases the chance of moderate flooding.
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.
• 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.