Mariposa County and Oakhurst could receive up to 3' of rain from Friday morning through Sunday morning.
Yosemite could receive up to 4" of rain with this weather system.
April 3, 2018 - The National Weather Service Hanford office reports another surge of tropical moisture will arrive in Central California by late week.
This warm and wet system has the potential to bring heavy rain, flooding, and debris flows, especially near recent burn scars.
Snow will be mainly confined to the highest elevations of the Sierra Nevada.
HYDROLOGIC OUTLOOK National Weather Service HANFORD CA 731 PM PDT Mon Apr 2 2018 ...HEAVY RAINFALL AND A THREAT OF FLOODING IS LIKELY OVER PARTS OF THE CENTRAL CALIFORNIA INTERIOR FRIDAY THROUGH SATURDAY NIGHT... A STORM SYSTEM WILL BRING AN ABUNDANCE OF TROPICAL MOISTURE INTO CENTRAL CALIFORNIA LATE THIS WEEK INTO THE WEEKEND ALONG WITH SUBSTANTIAL PRECIPITATION AND A THREAT OF FLOODING...ESPECIALLY IN THE FOOTHILLS AND MOUNTAINS. MILD AIR ASSOCIATED WITH THIS STORM WILL KEEP SNOW LEVELS WELL ABOVE 9000 FEET THROUGH SATURDAY. HEAVY RAIN TOTALS FROM THIS STORM SYSTEM COULD RESULT IN FLASH FLOODING...WASHED OUT ROADS AND BRIDGES... MUD SLIDES...ROCK SLIDES AND DEBRIS FLOWS...PARTICULARLY IN THE VICINITY OF THE DETWILER AND PIER BURN SCARS. MINOR STREET FLOODING IS POSSIBLE IN URBAN AREAS AND IN OTHER AREAS OF NORMALLY POOR DRAINAGE. RISING WATER LEVELS ARE ANTICIPATED ON RIVERS AND STREAMS FRIDAY AFTERNOON THROUGH SATURDAY NIGHT...ESPECIALLY OVER THE HIGHER TERRAIN WHERE THE COMBINATION OF RAIN AND MELTING SNOW WILL ACCELERATE RUNOFF. THERE IS A POSSIBILITY THAT THE UPPER MERCED RIVER THAT FLOWS THROUGH YOSEMITE NATIONAL PARK COULD FLOOD FOR A BRIEF TIME THIS WEEKEND. RESIDENTS SHOULD KEEP IN MIND THAT AREAS THAT FLOODED FROM THE LAST HEAVY RAIN EVENT COULD VERY EASILY FLOOD AGAIN. IF YOU LIVE IN A FLOOD PRONE AREA OR NEAR STREAMS AND RIVERS...THIS WOULD BE A GOOD TIME TO PREPARE OR REVIEW AN EMERGENCY ESCAPE PLAN IN THE EVENT HIGH WATER BECOMES A THREAT TO YOUR SAFETY.
Source: NWS
