Weekend Weather Preview
Multiple weather systems create a soggy, stormy weather pattern across most of the nation this weekend. The Northern Tier also sees a break in the heat, while unseasonably hot weather continues elsewhere.
Saturday
A strengthening low pressure will slide from the Great Lakes into southeastern Canada on Saturday. An associated cold front will advance south and east through New England, the Ohio Valley and Midwest as a result. The trailing edge of this cold front will also remain stalled over the central Plains and central/southern Rockies.
Rain showers and thunderstorms will be likely in the Great Lakes, Midwest and Ohio Valley during the morning and afternoon, which will spread to the Northeast and Mid-Atlantic during the afternoon and evening. Rain and thunderstorms will also be found in the central Plains and central/southern Rockies, mainly during the afternoon and evening.
Along this cold front from the Northeast to south-central U.S., be on the lookout for heavy rain and strong to severe thunderstorms. The main threats within thunderstorms will be damaging winds and large hail. However, an isolated tornado or two cannot be ruled out. Torrential downpours could also lead to flooding, especially in urban, low-lying and other more flood prone areas.
Ahead of this cold front, there will be a persistent onshore flow across the Gulf Coast and Southeast. This flow of moisture from the Gulf of Mexico and Atlantic Ocean will create shower and thunderstorm chances in the afternoon and evening.
At the same time, a new storm system will slowly drift into the Northwest. Expect a few showers and thunderstorms across the Pacific Northwest in the afternoon and evening.
The rest of the West and the north-central U.S. will be under the influence of high pressure for the start of the weekend. Dry weather will be in the forecast here.
The coolest spots on Saturday will be the Pacific Northwest and the northern Plains. High temperatures will stay in the 60s and lower 70s, though a few 50s cannot be ruled out! A few 60s will also be found in the interior Northeast. Otherwise, expect 70s and 80s for the Northern Tier. Expect mainly 80s and 90s for the southern half of the U.S. with 100s and even a few 110s in the Desert Southwest and southern Plains.
Sunday
Saturday’s cold front will push farther south and east through the entire Eastern U.S. on Sunday. The trailing edge of the front will also remain settled over the central Plains and central/southern Rockies.
It will be a soggy, stormy day for the entire Eastern Seaboard. There will also still be the chance of heavy rain and strong to severe thunderstorms. Rain and thunderstorms will also be likely in the Deep South, central Plains and central/southern Rockies.
A tropical disturbance drifting across the Gulf of Mexico could move onshore in Mexico. An abundant supply of tropical moisture from this disturbance could move into far southern Texas. Expect a good chance of rain and thunderstorms here, with the potential of localized flooding.
Meanwhile, the storm system in the Northwest will move farther east for the end of the weekend. Rain showers and a few thunderstorms will be expected for the Pacific Northwest and northern Rockies and Plains.
Dry weather is in store for a few spots, including California into the Great Basin as well as the Upper Mississippi Valley, Midwest and Great Lakes.
Expect widespread upper 60s, 70s and 80s for the northern half of the nation on Sunday. There could be some 50s and 60s though in the Northwest, while a few lower 90s are possible in the Ohio and Tennessee valleys and Mid-Atlantic. Most of the Southern U.S. will contend with 80s and 90s, but 100s and 110s continue for the Desert Southwest and southern Plains.
