A low pressure system stationed over the Northeast and Mid-Atlantic will move out to sea tonight.
Article continues below
Heavy snow in Juneau, Alaska, has wreaked havoc on boats, roofs and roads.
Light snow showers and some freezing rain will slowly come to an end as a result.
In the meantime, another low pressure system will organize over the central Gulf Coast and spread a line of thunderstorms, focused along a cold front, across the Lower Mississippi Valley and Southeast beginning tonight and continuing into Saturday.
A broad Slight Risk of Excessive Rainfall (level 2/4) is in effect across the central Gulf Coast where much of the region has had virtually no time to recover from the deluge of rain they've received over the past few days.
Some convergence over Oklahoma this afternoon will support the propagation of a weak complex of storms across the state tonight before eventually merging with the Gulf Coast system and producing scattered showers and thunderstorms to Arkansas and the Tennessee/Ohio Valley on Saturday.
Upslope enhancement of moisture over the Southern/Central Appalachians could lead to Flash Flooding concerns on Saturday as frontally driven storms interact with the terrain.
Thus, a Slight Risk of Excessive Rainfall is in effect for the Southern Appalachians through portions of the Central Appalachians/southwest Virginia on Saturday.
This same system will spread showers and thunderstorms into the Southeast and Mid-Atlantic Coast Saturday night into Sunday.
Cold air in place over the Northeast will support some light snow over the interior and some light freezing rain/sleet over parts of southern New England on Sunday.
Conditions should begin to improve by Sunday night.
Elsewhere, a series of low pressure systems will direct a continuous stream of moisture into the Pacific Northwest this weekend.
Anywhere between 1-4 inches of rain is possible with isolated higher amounts over the coastal ranges and Cascades.
A Slight Risk is in effect over the coastal border region of Oregon and California where several inches of rainfall may accumulate tonight.
High pressure over the East and West Coasts will generate anomalous warmth for those regions this weekend.
The upper low tracking across the southern tier states will moderate temperatures with cloudy cooler conditions compared to normal.
Record warm low temperatures will be possible in the Southeast and Northwest tonight.
As the West continues to warm up later this weekend into early next week, so will the potential for widespread record breaking temperatures up and down the coast. ■
A clipper system will move quickly across the northern Plains into the Midwest Friday and the Northeast by Saturday, bringing a wintry mix of rain and snow showers ahead of a sweeping cold front.