A pair of storm systems will bring unsettled weather through midweek, with severe thunderstorms and flash flooding possible in the southern High Plains, Ohio Valley, and parts of the Northeast, including the New York City area. Heavy snow may fall in the higher Rockies, while a slow-moving front lingers over the Southeast, supporting daily heavy rain chances. Temperatures will stay cooler than normal across the southern Plains and Northeast, but much of the West will heat up as the week progresses, with highs reaching into the 100s in the Desert Southwest. Heavy snow and rain for parts of Canada, mostly the mountainous west and high plains of Alberta, and heavy rainfall for parts of the Maritimes.
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The weather pattern remains active as we head through the final week of June. Severe thunderstorms and heavy rainfall will continue to impact parts of the Plains, Midwest, Ohio Valley, and Mid-Atlantic through the week, while dangerous heat remains locked in across portions of the South and expands eastward by early next week. Meanwhile, wildfire concerns are increasing across the Four Corners region, and a cooling trend is finally on the way for parts of the West this weekend. Residents in several regions should be prepared for rapidly changing weather conditions, including flash flooding, severe storms, and periods of dangerous heat.