Santa Ana winds fuel critical fire weather conditions in Southern California. Record highs, then widespread heavy rain and severe thunderstorm threats, will impact the East Coast through New England into tonight. A surge of arctic air will hit Saskatchewan, Manitoba, Ontario, the Northern Plains and Midwest, producing lake-effect snow downwind of the Great Lakes and rain/snow for eastern Canada from today through Saturday. Here are other items to keep track of in this week’s Weather Watch.
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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.