...FLOOD WATCH REMAINS IN EFFECT FROM 5 AM PDT TUESDAY THROUGH
WEDNESDAY AFTERNOON...
* WHAT...Flooding caused by excessive rainfall continues to be
possible.
* WHERE...A portion of Southwest California, including the following
areas, Orange County Coastal Areas, Orange County Inland Areas,
Riverside County Mountains, San Bernardino County Mountains, San
Bernardino and Riverside County Valleys-The Inland Empire, San
Gorgonio Pass Near Banning and Santa Ana Mountains and Foothills.
* WHEN...From 5 AM PDT Tuesday through Wednesday afternoon.
* IMPACTS...Excessive runoff may result in flooding of rivers,
creeks, streams, and other low-lying and flood-prone locations.
Flooding may occur in poor drainage and urban areas. Low-water
crossings may be flooded.
* ADDITIONAL DETAILS...
- Widespread moderate to heavy rain is expected Tuesday
morning, becoming periods of showers through late Wednesday.
Rainfall rates of 0.50 to 0.60 inches per hour are expected
in lower elevations with rainfall rates of 0.70 to 0.90 inch
per hour possible on south facing mountain slopes. Additional
rain falling on already saturated soils will likely produce
rapid runoff, resulting in local flooding.
Heavy rain resulting in flooding in the mountains below snow
level. Snow levels will be at 5500-6500 ft for much of the
day Tuesday, falling to 4000-4500 ft by Tuesday night.
- https://www.weather.gov/safety/flood