Tranquil weather will prevail across the central United States on Sunday, while the West Coast remains under a threat of scattered thunderstorms.
A low pressure system hovering over California continues to push a few disturbances onshore that favor scattered thunderstorms amid dry and hot surface conditions. Rainfall totals will remain low _ less than a quarter of an inch.
The fire danger will remain high across the West as dry soil and vegetation will be threatened by so-called dry thunderstorms that bear lightning but little rain. Some showers and thunderstorms are forecast to stretch into the Southwest with light rainfall totals expected.
A high pressure area dominates the central U.S., signaling another warm and sunny day for the Plains. Expect highs to reach into the 80s and 90s across most of the Plains.
In the East, a cold front will dip into the Northeast from eastern Canada. This front will kick up a few scattered showers and thunderstorms from the Northeast through the Midwest. Some of these storms may turn severe with strong winds and large hail.
Meanwhile, cold air is expected to pour into Maine, raising the first chance of frost for the season. Overnight lows may dip into the 20s across Maine.
Temperatures in the lower 48 states ranged Saturday from a morning low of 26 degrees at West Yellowstone, Montana, to a high of 99 degrees at Redding, Calif.
Weather Underground: http://www.wunderground.com
National Weather Service: http://iwin.nws.noaa.gov