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Hurricane Hilary expected to weaken to tropical storm before crossing into California

Hilary, now a powerful Category 4 hurricane, is expected to make landfall in Mexico's Baja California by Sunday morning and then weaken to a tropical storm before crossing into California Sunday night.

Southern California -- including San Diego and Palm Springs -- is bracing for heavy rain, flash flooding, mudslides and gusty winds.

PHOTO: A weather map shows storm alerts and flood watches in southern California, Nevada, and western Arizona, Aug. 18, 2023. (ABC News)
PHOTO: A weather map shows storm alerts and flood watches in southern California, Nevada, and western Arizona, Aug. 18, 2023. (ABC News)

The greater Southwest area, including Las Vegas, could also see flash flooding from this very rare event.

Most areas will see 2 to 6 inches of rain, but some areas could see up to 10 inches of rain.

PHOTO: A weather map shows rainfall expected after Hurricane Hilary becomes a Tropical storm for the south-west coast of the U.S., Aug. 18, 2023. (ABC News)
PHOTO: A weather map shows rainfall expected after Hurricane Hilary becomes a Tropical storm for the south-west coast of the U.S., Aug. 18, 2023. (ABC News)

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A tropical storm watch is in effect for Cabo San Lucas. Hilary's outer bands could graze the popular Mexican resort town but it is not forecast to directly hit Cabo.

A hurricane watch was issued further north in Baja California.

PHOTO: A weather map shows the path and expecting timing for Hurricane Hilary on the west coast of Mexico, Aug. 18, 2023. (ABC News)
PHOTO: A weather map shows the path and expecting timing for Hurricane Hilary on the west coast of Mexico, Aug. 18, 2023. (ABC News)

Hurricane Hilary expected to weaken to tropical storm before crossing into California originally appeared on abcnews.go.com