A major shift in the weather pattern will drive cooler air southward across the Plains and into Texas through this weekend.
After a long, hot summer in much of Texas and the southern Plains, any relief from the 100-degree readings will be more than welcome.
Cooler, less humid air will travel thousands of miles to the south from Canada during the second half of this week, reaching Oklahoma before the week comes to an end.
The air will push southward across much of Texas over the weekend.
High temperatures are forecast to be 15 to 25 degrees lower in the wake of the front. In Dallas and San Angelo, highs are forecast to be in the 80s both days of the weekend. By Sunday, the more comfortable air will reach into San Antonio, Houston and El Paso.
It is possible that temperatures and humidity levels will be shaved as far south as South Texas and part of northern Mexico by early next week.
Ahead of the front through the end of the week, the heat will continue over the region.
As the front pushes southward, there is the potential for a severe weather outbreak over portions of the South Central states spanning into Saturday.
The pattern change will bring additional rounds of showers and thunderstorms to portions of the Ohio Valley, South and East this weekend.
A dip in steering currents will drive the cool air across the Plains and could work to draw Leslie northward into Atlantic Canada next week.
More severe weather is on the way for the southern Plains on Tuesday as well as parts of the Midwest and the Northeast.
The same storm system responsible for producing violent and deadly thunderstorms will reach the heavily populated Atlantic Seaboard Thursday.
The atmospheric severe weather engine began firing on all cylinders this past weekend and reached full speed Monday over Oklahoma.
Preliminary reports are calling it an EF-4 tornado that has caused numerous fatalities and injuries in Moore, Okla.
Several tornadoes touched down from Oklahoma to Iowa, including near Wichita, Kan., and Oklahoma City, on Sunday.
Rising temperatures and humidity across the mid-Atlantic will have it feeling like the end of June.
Orlando, Fl (2005)
High temperature finally reached 90 degrees. This gets a record for the latest occurrence of the first degrees day of the year.
Kansas City, KS (1957)
Forty-five people killed and millions of dollars in damage by tornadoes.
Memphis, TN (1983)
Freak lightning bolt strikes a man in his neck, runs down his spine, and passes out of a pocket containing keys. The bolt then struck 2 other men nearby before also hitting a tree the men were standing under at a golf course. Miraculously all three men survived.