The powerful Pacific Storm located off the Pacific Northwest was forecast to bring more precipitation to the West on Monday.
Strong, moist, onshore flow was expected to continue causing more moderate to heavy rain, high elevation snow and thunderstorms across the Pacific Northwest and areas of northern and inland California. Precipitation was expected to spread across the Intermountain West and the Northern and Central Rockies as the low pressure trough and associated cold front pushed farther inland. Forecasters said persistent showers and heavy downpours may lead to localized flooding, especially along the Pacific Northwest Coast. Winter storm warnings were in effect for the Cascades and the Northern and Central Rockies. Higher elevations of the Cascades may receive another foot or more of snow through Tuesday morning, while snow accumulations across the Rockies may range between 1 and 2 feet for elevations above 8,000 feet. Wind advisories and high wind watches were forecast to remain in effect across Nevada, western Utah, southern Idaho and New Mexico. Meanwhile, a colder airmass would accompany this system and lead to cooler than normal afternoon temperatures and lowered snow levels.
The low will and cold front would also stir up light to moderate rain showers in the Northern Plains. The Midwest was forecast to experience heavier precipitation along the front by Monday evening into Tuesday morning.
Active weather was also expected in the East during the next couple of days. High pressure in the western Atlantic would direct significant moisture across the Central Gulf Coast, fueling scattered to numerous showers and thunderstorms in the Southeast, as well as chances of showers in the Eastern Valleys. Forecasters said storms in southeastern Alabama, Georgia and South Carolina may turn severe with gusty winds and hail. Additional showers were expected in New England due to a warm front lifting through the Northeast.
Temperatures in the Lower 48 states Sunday ranged from a low of 21 degrees at Berlin, N.H., to a high of 93 degrees at Tampa Executive Airport in Florida.