Category 1 · NO FLOODING EXPECTED

Flood Watch

Redondo Beach, WA

Day 1: 2026-09-19

Category 1

WHAT
No flooding risks are expected under Category 1. The primary driver is a moderate astronomical tide with near-normal pressure and negligible wind influence.

WHEN
Peak tides occur around 1:54 PM and again near 11:30 PM.

IMPACTS
• No impact anticipated.

REASONING
The modest tide contribution and slightly above-normal pressure keep conditions in a routine range. Winds do not contribute to any risk. This scenario is similar to the 2021-03-26 Cat 1 event.


Day 2: 2026-09-20

Category 1

WHAT
Category 1 indicates no immediate flood concerns. The tide is somewhat higher than the previous day, but pressure remains near normal, and there is negligible wind influence.

WHEN
Peak tide will be in the midafternoon, near 3:00 PM.

IMPACTS
• No impact anticipated.

REASONING
A slightly higher astronomical tide is the main factor, with mild support from near-normal pressure. Winds remain minimal. Conditions are similar to the 2024-09-27 Cat 1 event.


Day 3: 2026-09-21

Category 1

WHAT
Category 1 signals no flood risk. The tide is a bit higher than earlier in the week, though pressure is not low enough to create concerns, and onshore wind remains minor.

WHEN
Peak tides occur late night around 12:54 AM and again in midafternoon near 3:36 PM.

IMPACTS
• No impact anticipated.

REASONING
The somewhat higher tide contributes the most, with a small boost from slightly lower pressure. Wind influence is minimal. This is similar to the 2021-08-06 Cat 1 event.


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

Forecast detail

72-hour tide forecast at Tacoma (NOAA), local time. Dashed line is the Category 3 threshold.
14 ft 12 ft 10 ft TodaySunMon Cat 3 · 13 ft

Weather panel — Day 1

CentralEnsemble p10–p90
Pressure1021.2 hPa1019.5–1020.2
Wind2 mph SSW2–4
Surge (forecast)0.20 ft—
NOAA HTF likelihood0%—

Onshore component: 2.0 mph. Pressure values are MSL; wind is the 10-meter forecast. Ensemble spread is the 10th–90th percentile across five weather models (GFS, ECMWF, ICON, GEM, UKMO).

Closest past event

Friday, March 26, 2021 Scored Category 1
Tide
11.5 ft
Pressure
1020.9 hPa
Wind
9 mph SSW

Observed that day: no flooding reported (no corroborating evidence found in the audit log).

Selected from the nearest-neighbor search across every logged flood event · 98% similar.