Weekend Weather Preview

This weekend will favor storms in a west to east corridor from the central Plains to the Mid-Atlantic as the southern U.S. starts to bake in the heat.
Saturday
Multiple rounds of storms will take place in the Midwest, Ohio Valley and Mid-Atlantic on Saturday. As a slug of tropical moisture meets with an upper-level disturbance, these storms will be loaded with the potential for flash flooding and damaging winds. Rainfall totals will range from one-half inch to over 3 inches in some spots.
The High Plains of Montana, North Dakota, and South Dakota will see a few strong storms as a weak low-pressure system forms off the Rockies. Large hail and damaging winds are the main threats while a tornado or two cannot be ruled out.
A dangerous storm environment may occur over the central Plains in Nebraska, Kansas, eastern Colorado and Iowa late in the day. If a few storms pop, a tornado threat could materialize. Severe wind gusts and large hail will be other threats to watch.
The Four Corners and Rockies will see showers and storms during the day that will be capable of flash flooding and a couple isolated strong gusts. The Great Basin may get into some of this activity with isolated showers of their own.
Scattered storms cannot be ruled out in the Mid-South, along the Gulf Coast, and in the Southeast.
Late into the night and into Sunday, the western portions of the Northeast will get a taste of storms capable of damaging winds and periods of heavy rain.
The West Coast will be mostly dry as high pressure dominates.
Highs in the 50s and 60s are likely in the higher terrain of the Rockies and Cascades. The Pacific Northwest, Pacific Coast, northern Plains, and Upper Midwest will see 70s. Eighties will be found in the Midwest, Northeast, Ohio Valley, Mid-Atlantic, Four Corners, and Great Basin. Temperatures in the 90s will exist in the Southeast, central to southern Plains, and Mid-South. Triple digits will be plentiful in the Desert Southwest.
Sunday
The Ohio Valley, Northeast, and Mid-Atlantic will light up with storms on Sunday. In the morning, the Northeast will see storms come out of Canada from the previous day and provide an opportunity for heavy rain. Showers and storms will form later in the day as well. The Ohio Valley and Mid-Atlantic will see a few different rounds of storms going on from the morning and then rebuilding into the afternoon. Storms will be capable of flash flooding and damaging wind gusts.
A low-pressure system will form off the Rockies in the northern Plains. This will help with the formation of storms in the northern to central Plains and Midwest. These storms will have the ingredients to have large hail, severe wind gusts, and a few tornadoes.
The Mid-South, Southeast, and Gulf Coast will see its daily run of storms continue. However, this activity may be a bit more isolated and less widespread.
Showers and storms will pop up during the day in the Rockies and Four Corners. Threats include a few strong gusts at times and isolated flash flooding.
Once again, the West Coast states will be dry including the Great Basin and Desert Southwest. Higher terrain of the Pacific Northwest may have a couple showers to deal with but should be mostly dry.
Temperatures in the 50s and 60s will be common in the higher terrain of the Cascades and Rockies. The Upper Midwest, Great Lakes, Pacific Coast, and Northeast will see 70s. Highs in the 80s are likely in the Four Corners, Great Basin, interior Pacific Northwest, Mid-Atlantic, Ohio Valley, Midwest, and northern Plains. Nineties will be found in the Southeast, Mid-South, southern Plains, Gulf Coast, and desert portions of the Great Basin. In the southern Plains a few 100s are not out of the question. The Desert Southwest will see 100s as well.