A pattern shift will develop this weekend resulting in record heat in parts of the West, with mild and wet conditions dominating parts of the central and eastern U.S.
The jet stream will become more amplified late this weekend into next week. The jet stream will bulge northward over the West as a heat dome builds, then it will dip southward over the east.
Bringing record heat to parts of the western U.S., while portions of the Plains and the Midwest will experience cooler conditions. Rounds of rain and storms likely in parts of the East, keeping temperatures near or slightly cooler than average.
A strong ridge of high pressure will build over the Southwest and Southern Plains late this week. The heat dome will expand across the West into next week.
High temperatures will be up to 25 degrees above average from the Southern Plains to the Northwest this weekend, with the exception of near the California coast. This means highs in the 90’s and 100’s for most of the region, including areas as far north as Seattle.
Excessive heat warnings, watches, and advisories have been issued for parts of the Southwest and California.
