Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 356 PM EDT Mon Jun 01 2020 Valid 00Z Tue Jun 02 2020 - 00Z Thu Jun 04 2020 ...Severe weather and heavy rain to threaten the northern High Plains, Midwest, and Great Lakes ... ...Summer heat to stretch from coast-to-coast by mid-week... ...Elevated to Critical fire weather conditions across the Central Great Basin today... A passing frontal system over the North Central U.S. is responsible for showers and thunderstorms marching across the western Great Lakes this afternoon. They will continue on their easterly track through the Great Lakes tonight and reaching portions of the northern Mid-Atlantic by Tuesday morning. In wake of this system, an upper-level disturbance passing through southern Canada will work in tandem with a stalled front over the Northern Plains and Upper Midwest to trigger additional showers and storms late Tuesday. With better jet dynamics aloft, severe weather is likely with damaging winds, large hail, and tornadoes all possible. Rainfall rates could also be quite high with localized flash flooding possible. Elsewhere, hit-or-miss showers and storms should be found across much of the South; from Texas to Florida. High pressure over the Southeast and Pacific Northwest through mid-week ensures an otherwise mostly dry pattern across the Lower 48. As meteorological summer kicks off today, so too will an expansive dome of summer heat which quickly moves west to east over the next couple days. High temperatures will soar into the 90s across the Northern/Central High Plains and Midwest through Tuesday with triple digit heat entrenched across the Desert Southwest. Following a cool Monday, the West Coast should see temperatures return to summer-like levels. The East Coast manages one more day of seasonally cool temperatures Tuesday before considerably warmer and more humid conditions arrive on Wednesday. In addition, a critical risk for fire weather continues today in the central Great Basin. Elevated risks for fire weather extend east into western Colorado and on southward into the Lower Colorado River Valley. Mullinax Graphics available at www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php