Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 343 PM EDT Fri Jun 26 2020 Valid 00Z Sat Jun 27 2020 - 00Z Mon Jun 29 2020 ...There is a enhanced risk of severe thunderstorms over parts of the Upper Great Lakes into the Middle Missouri Valley... ...There is a slight risk of excessive rainfall over parts of the Great Lakes into Middle Mississippi Valley... ...Very hot conditions continue across Florida and interior valleys of California... ...Favorable fire weather conditions are expected over portions of the West... Moisture flowing northward from the Western Gulf of Mexico will stream northward over the Plains into Midwest pooling along a boundary from the Great Lakes roughly southwestward to the Central Plains, that will aid in the development of showers and thunderstorms. The Storm Prediction Center has issued an Enhanced Risk of severe weather over portions of the the Upper Great Lakes into the Middle Missouri Valley, with a broader Slight Risk back into the Central High Plains. Flash flooding is also forecast as a Slight Risk of excessive rainfall is also in place for much the same area from the Central Plains to the Great Lakes. Farther south, some locally heavy rainfall totals of 1 to 3 inches are possible in Southern Texas, which could lead to flash flooding there as well. The northern part of the front should shift eastward Saturday but stall over the Midwest. Thus, the main focus for severe weather on Saturday should be across the Northern Mid-Atlantic region into southern parts of the Northeast, while some lower risk of strong thunderstorms as well as a couple of Slight Risks of flash flooding are forecast back toward the Mississippi and Ohio Valleys. Additionally, temperatures over Florida should be hotter than normal, and could even set records with highs in the upper 90s. Heat is also forecast across the West today, with highs 10 to 15 degrees above normal from Northern California into Washington and Oregon. Heat Advisories are in effect for the interior valleys of California and for Southwestern Oregon. Cooler temperatures are expected in the Pacific Northwest Saturday before a dramatic cooldown Sunday as a potent upper-level trough moves in. At the surface, showers and thunderstorms could form along a cold front in the Northwest on Saturday, but rain totals will ramp up even more early next week. Farther south, conditions are forecast to be favorable for fire weather, with gusty winds, low humidity, and the potential for dry thunderstorms. The Storm Prediction Center has Elevated to Critical Risks of fire weather in place over portions of the Central Great Basin to the Southwest. Ziegenfelder Graphics available at www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php