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A warmer weather system will bring widespread rain back to Northern California on Tuesday, which will likely lead to snow at lower elevations melting. Existing snow combined with rain could lead to localized street flooding on the west slope, making Tuesday a KCRA 3 weather Impact Day.Impact Days are issued when weather conditions could be a nuisance for travel or outdoor activities. This system will tap into moisture from a weakening atmospheric river with roots in the tropics. Because of this warmer setup, the snow level will stay well above the Tahoe area passes.Flooding in communities that have seen several feet of snow is possible as warm rain is expected to melt snow and lead to poor drainage flooding. Rain will also add significant weight to piles of snow on rooftops.The Sierra Avalanche Center warned that there is a high avalanche danger on Tuesday. The incoming rain will add a lot of weight to the upper layers of the snowpack, making it even more unstable.”Blowing and drifting snow has led to unstable wind slabs in areas that have filled in with drifted snow,” the center said. “Weak layers deep in the snowpack remain unstable in some areas. Consider avoiding avalanche terrain in areas where wind slabs exist, near any areas where you have triggered any snowpack collapses or audible whumpfing, or where recent avalanches have occurred.”Below is a breakdown of what the KCRA 3 weather team is expecting:RainScattered showers arrive late Monday night into early Tuesday morning. Rainfall will turn steady as the busiest part of the morning commute is starting in the Valley, Foothills and Sierra. Showers will continue on and off throughout the day and into the overnight hours before tapering off quickly Wednesday morning. The heaviest rain is forecast in higher terrain and areas along and north of Interstate 80.Below are forecast amounts for Tuesday and Wednesday:Valley: 0.25 to 0.70 inches of rainFoothills: 1 to 3 inchesSierra: All rain, with totals up to 2 inches on the west slopeSnowSnow is not in the forecast with this weather system. The snow level will begin above 10,000 feet and then drop to 9,000 feet as precipitation tapers off Wednesday morning. WindBreezy conditions are expected at times Tuesday, strongest in the Sierra.Mountain areas can expect sustained winds of 10 to 20 mph, with gusts up to 25 mph, especially Tuesday morning.Winds will be lighter and less impactful in the foothills and lower elevations.See more coverage of top California stories here | Download our app | Subscribe to our morning newsletter | Find us on YouTube here and subscribe to our channel
A warmer weather system will bring widespread rain back to Northern California on Tuesday, which will likely lead to snow at lower elevations melting.
Existing snow combined with rain could lead to localized street flooding on the west slope, making Tuesday a KCRA 3 weather Impact Day.
Impact Days are issued when weather conditions could be a nuisance for travel or outdoor activities.
This system will tap into moisture from a weakening atmospheric river with roots in the tropics. Because of this warmer setup, the snow level will stay well above the Tahoe area passes.
Flooding in communities that have seen several feet of snow is possible as warm rain is expected to melt snow and lead to poor drainage flooding. Rain will also add significant weight to piles of snow on rooftops.
The Sierra Avalanche Center warned that there is a high avalanche danger on Tuesday. The incoming rain will add a lot of weight to the upper layers of the snowpack, making it even more unstable.
“Blowing and drifting snow has led to unstable wind slabs in areas that have filled in with drifted snow,” the center said. “Weak layers deep in the snowpack remain unstable in some areas. Consider avoiding avalanche terrain in areas where wind slabs exist, near any areas where you have triggered any snowpack collapses or audible whumpfing, or where recent avalanches have occurred.”
Below is a breakdown of what the KCRA 3 weather team is expecting:
Rain
Scattered showers arrive late Monday night into early Tuesday morning.
Rainfall will turn steady as the busiest part of the morning commute is starting in the Valley, Foothills and Sierra. Showers will continue on and off throughout the day and into the overnight hours before tapering off quickly Wednesday morning.
The heaviest rain is forecast in higher terrain and areas along and north of Interstate 80.
Below are forecast amounts for Tuesday and Wednesday:
- Valley: 0.25 to 0.70 inches of rain
- Foothills: 1 to 3 inches
- Sierra: All rain, with totals up to 2 inches on the west slope
Snow
Snow is not in the forecast with this weather system.
The snow level will begin above 10,000 feet and then drop to 9,000 feet as precipitation tapers off Wednesday morning.
Wind
Breezy conditions are expected at times Tuesday, strongest in the Sierra.
Mountain areas can expect sustained winds of 10 to 20 mph, with gusts up to 25 mph, especially Tuesday morning.
Winds will be lighter and less impactful in the foothills and lower elevations.
See more coverage of top California stories here | Download our app | Subscribe to our morning newsletter | Find us on YouTube here and subscribe to our channel
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