Redondo Beach, WA
CATEGORY 2
WHAT
No significant flooding is expected on May 9. While the early-morning high tide nears 18.7 ft, barometric pressure remains around 1010–1011 hPa, which is not low enough to indicate a strong coastal flooding threat.
WHEN
Peak high tides occur around 02:24 AM (18.70+ ft) and again near 04:00 PM (17.3+ ft).
IMPACTS
• No known property damage expected.
• Minimal impacts to low-lying areas.
• Routine caution is advised around higher-than-usual tides.
NOAA’s Flood Likelihood is 0.0% for May 9, reflecting no anticipated flooding. Historically, significantly lower barometric pressures (below ~992.8 hPa) combined with tide heights above 21 ft have been associated with more serious coastal floods. Today’s pressures remain too high, and tide levels, though moderately elevated, are below key flood thresholds seen in past Cat 3+ events.
CATEGORY 2
WHAT
Similarly, May 10 does not show a strong indication of flooding. Though barometric pressure will drop to around 996 hPa at the afternoon high tide, the overall tide height remains below major flood thresholds.
WHEN
Highest tides occur around 02:48 AM (~18.5 ft) and 04:48 PM (~17.9 ft).
IMPACTS
• No structural or property damage anticipated.
• Minor water accumulation near the shoreline possible but unlikely to pose flood threats.
NOAA’s Flood Likelihood remains 0.0% for May 10. Even with the somewhat lower pressure of 996 hPa, the tide height does not exceed historical levels typically linked to flooding (e.g., >21 ft). Winds are not forecast to be significant from flooding-prone directions, further reducing risk.
CATEGORY 3
WHAT
A particularly low barometric pressure near 992.2 hPa coincides with an afternoon high tide of around 18.4 ft. This combination, while below the critical 21 ft threshold, is still worth monitoring because of the notably low pressure.
WHEN
Key high tides:
• Overnight high tide around 03:06 AM (~18.4 ft) with ~994.4 hPa.
• Late afternoon high tide around 05:30 PM (~18.4 ft) with ~992.2 hPa.
IMPACTS
• Minor coastal flooding could develop in very low-lying areas.
• No major property damage is expected at current forecast levels.
• Localized water on beaches and possible brief ponding on coastal roads.
Comparing to historical Cat 3 events—such as a 17.46 ft tide with ~1006 hPa—shows that today’s tide is somewhat higher, but NOAA still forecasts a 0.0% flood likelihood. Because the pressure is exceptionally low, the situation is “close to a flood event,” yet the tide remains below the 21 ft range typical of more significant floods. Keep watch for changes in wind conditions or any updates to local forecasts.
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.