Flood Watch

Redondo Beach, WA

Day 1: 2026-08-31

CATEGORY 2

WHAT
A Category 2 event indicates no significant flood risk. Slightly above-average tide is the main contributor, with a small boost from below-normal pressure. Onshore wind is minimal, keeping conditions benign.

WHEN
Peak risk in the early evening around 7:42 PM, coinciding with the high tide.

IMPACTS
• No impact anticipated.

REASONING
Elevated tide was the primary factor, with slightly below-normal pressure providing a minor contribution. Onshore wind had negligible influence. A somewhat more intense historical analog was 2023-12-27 (Cat 3), but today’s conditions remain less pronounced.

Day 2: 2026-09-01

CATEGORY 3

WHAT
A Category 3 event, close to flood conditions. Above-average tide and below-normal pressure both raise the water level. Residents in vulnerable areas should monitor conditions.

WHEN
Greatest risk during the evening high tide around 8:12 PM.

IMPACTS
• Minor inundation possible at immediate shoreline.

REASONING
A higher astronomical tide is the main driver, with somewhat lower-than-usual pressure adding to the total. Modest onshore wind does not significantly change the threat. This is similar to the 2023-01-06 Cat 3 event. Note that the ensemble’s central scenario is slightly lower (Category 2), but there is around a 42% chance it could reach Category 3 under the higher-impact tail scenario.

Day 3: 2026-09-02

CATEGORY 3

WHAT
Conditions remain in Category 3. The elevated tide again dominates, with pressure slightly below normal helping to keep water levels on the higher side. Continue to watch for localized issues at the coast.

WHEN
Peak tide near 8:48 PM.

IMPACTS
• Minor inundation possible at immediate shoreline.

REASONING
A high astronomical tide is the principal driver, with mildly decreased pressure contributing. Winds are minimal, limiting additional influence. This situation is similar to the 2023-12-27 Cat 3 event in overall tide and pressure pattern.

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.