Tropical Storm Hilary makes landfall over California's Northern Baja coast, officials say

SAN FRANCISCO-- The National Hurricane Center tells ABC News that Hilary made landfall over the northern Baja California Peninsula in Mexico as a tropical storm. It is moving to the NNW at 25 miles per hour.
Hilary is no longer a cyclone, however it is still carrying a lot rain that forecasters said "" deadly and devastating"" flooding is likely across a broad area of the southwestern U.S.
LIVE: Tracking Hilary'& #x 27; s current course as it moves toward CA. Video in the media player above is from a previous upgrade
The Mexican cities of Ensenada and Tijuana remained straight in the tropical storm'& #x 27; s course, and meteorologists warned that in spite of weakening, the storm stayed treacherous.
There will be a threat of flooding rains throughout Southern California from Sunday through Tuesday. Typhoon Hilary has actually been devalued to a tropical storm cyclone from a Category 1 Sunday morning as evacuations in at-risk locations continue to be provided, according to the Associated Press.
Hurricane cautions are in effect for more than 42 million Americans in Southern California, as Hilary is anticipated to be the first storm of its kind to strike the area since Nora in 1997.
Rain started to reach the southern regions of California and Arizona later on Saturday and continues into Monday.
Flood watches are in impact from Southern California and Arizona to Oregon and Idaho.
California Governor Gavin Newsom declared a state of emergency situation for much of Southern California on Saturday ahead of Hurricane Hilary making landfall, ABC News reported.
"" California has thousands of people on the ground working together with regional and federal workers to support communities in Hurricane Hilary'& #x 27; s course with resources, equipment and knowledge,"" the guv said in a declaration.
There are presently "" more than 7,500 boots on the ground released"" to help local neighborhoods the governor'& #x 27; s declaration continued.
The impacts of the storm are anticipated to begin Saturday night lasting through Monday, according to the declaration.
VIDEO: Officials provide update on CA'& #x 27; s Hurricane Hilary response, readiness efforts
EMBED <>< > More Videos Authorities as far north as Los Angeles scrambled to get the homeless off the streets, established shelters and prepare for evacuations.
More than 7,500 people-- from first-responders to support personnel-- are prepared to go.
That includes hundreds of California National Guardsmen and females.
Cal Fire is on standby also with hundreds of engines in position.
It will have groups prepared for any possible swift water saves and prepared to browse urban areas.
If you'& #x 27; re traveling, United Airlines provided an alert saying flights could be affected Sunday till Monday.
Big league Baseball games in Southern California-- have actually been delayed.
The rain could produce flooding and slides particularly in locations with burn scars.
On Saturday, Hurricane Hilary "" has actually sped up a bit, together with a slight shift eastward in its track,"" as it gained speed, moving toward Baja California, according to the National Weather Service Saturday early morning. "" This leads to Sunday morning through Sunday night being the time frame of most effect, in addition to a little weaker winds."".
It is then anticipated to continue northward up the peninsula, raising fears that its heavy rains could cause unsafe flooding in the border city of Tijuana, where many homes in the city of 1.9 million cling precariously to steep hillsides.
Hilary will quickly deteriorate as it enters cooler ocean waters and engages with the mountain surface of Baja California Sunday.
The present track has Hilary moving into Southern California late Sunday into Monday as a tropical storm. Potentially catastrophic and dangerous flooding is possible. For the first time ever, Tropical Storm Warnings have actually gone up for Southern California.
No tropical storm has actually made landfall in Southern California since Sept. 25, 1939, according to the National Weather Service.
Hilary is currently sitting in 85-degree water and will remain in those warm waters through Saturday. As Hilary moves more detailed to Baja California, ocean temperature levels will rapidly cool into the 70s and eventually the 60s along the California coast.
That temperature level drop might not seem like a lot but ocean temperatures in the 70s will basically eliminate Hilary and water in the 60s will never support a tropical system. Therefore, we see an extremely quick weakening as the system approaches the California-Mexico border.
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HEAVY RAIN THREAT IN SOCAL

The moisture from Hilary will bring the possibility of excessive flooding in Southern California.
The National Weather Service provided a flood watch that will be in result starting at 11am tomorrow through Monday night across San Diego and Los Angeles counties. Rain amounts of 3 to 6 inches, with isolated amounts of 10 inches, are anticipated across portions of southern California and southern Nevada, which would lead to uncommon and considerable impacts. Somewhere else throughout parts of the Western United States, rains totals of 1 to 3 inches are anticipated.
Rough browse and strong winds will also impact Southern California.

CENTRAL VALLEY IMPACTS

The Central Valley is forecasted to have residues of rain and thunder from Hurricane Hilary by Monday and Tuesday.
Parts of the South Valley might first experience rains by Monday early morning. The rest of the Central Valley will see an opportunity of thunderstorms by Monday afternoon.
Projected rain totals continue to alter as the Valley is still a few days out from the storm, with the possibility of Hilary also downgrading.

BAY AREA IMPACTS

RELATED: Hurricane Hilary: Bay Area unlikely to see extreme weather condition from storm as it takes aim at SoCal.
The present track of Hilary keeps the bulk of the wetness in Southern California and the Sierra but, we still have a possibility of seeing isolated showers here Sunday and a chance of showers Monday. Remnants of Hilary will bring greater humidity and tropical cloud cover in between Sunday and early next week.
We will monitor the track of this storm and any little shifts would indicate an increased chance of rain here. That is something we will fine-tune in the coming days.
ABC News and the Associated Press contributed to this report.
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