Update: Heavy High Elevation Rain Is Expected Next Week
The Winter Storm Warning issued for the Sierra Nevada above 4,500 feet, will expire at noon on Thursday.
Five to ten inches of additional snow accumulation is likely above the 5,000 foot elevation. One to two feet of additional snow accumulation is likely above 7,000 feet.
And the Flood Warning for urban areas and small streams in northwestern Calaveras County, continues to remain in effect through 11:15 PM Thursday.
Runoff from moderate to heavy rain continues to result in widespread flooding of streams and low-lying areas. Water levels will remain high into Thursday.
The water will be slow to recede in low lying areas.
According to the National Weather Service, a couple of more storm systems will impact Central California during the next seven days.
The next storm will track through the region rather quickly early this weekend. It is not expected to bring more than localized nuisance flooding.
The storm that follows however, will bring an abundance of tropical moisture into California from Tuesday March 5th into Wednesday March 6th, along with substantial precipitation and a high threat of significant flooding. This will be especially true for the Mother Lode’s foothills and the Sierra Nevada mountains.
Mild air associated with this storm will keep the snow levels well above 9.000 feet during this period.
Historically, heavy rain totals can bring localized flash flooding and the associated impacts could include washed out roads and bridges, mud slides, rock slides and debris flows, particularly in the vicinity of the burn scars.
Minor street flooding could occur in urban areas and in other areas of normally poor drainage.
Rising water levels are anticipated on rivers and streams during the middle of next week, especially over the higher terrain where the combination of rain and melting snow will accelerate the runoff.
Residents should keep in mind that areas that have recently flooded or normally do flood during heavy rain events, could easily flood again.
If you live in a flood prone area or near streams and rivers, this would be a good time to prepare to have an evacuation plan in place. The plan needs to be known in the event that high water becomes a threat to your safety.
A Winter Storm Warning means there will be snow covered roads and limited visibilities. Travel is not recommended while the warning is in effect. If you must travel, keep an extra flashlight, food and water in your vehicle in case of an emergency.
