Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 352 AM EDT Sat Jun 22 2019 Valid 12Z Sat Jun 22 2019 - 12Z Mon Jun 24 2019 ...Severe thunderstorms and flash flooding are both possible in the central and eastern U.S. this weekend... ...Much below average temperatures with snow possible for higher elevations in the West... ...Favorable fire weather conditions expected for the Southwest and north-central California... A deep upper-level trough for this time of year will move eastward from the West into the central U.S. this weekend, and bring a cold front slowly eastward with it. Widespread showers and thunderstorms are expected from the Plains into the eastern U.S. with these features. On Saturday, severe weather is likely for the Southern and Central Plains, where an Enhanced Risk is in effect from the Storm Prediction Center. Slight Risks of both severe weather and flash flooding are in place through the Plains to Middle Mississippi Valley and into portions of the Tennessee and Ohio Valleys on Saturday. Through the weekend, 2 to 4 inches of rain is forecast for parts of the Southern Plains into western portions of Arkansas. Thus a Moderate Risk of flash flooding is outlooked for these areas on Sunday, and severe weather is likely there as well with an Enhanced Risk in place once again. Unseasonably cold temperatures are expected in parts of the western and central U.S. for the weekend associated with the deep trough. For the Central Great Basin to the Northern/Central Rockies and Northern/Central High Plains, high temperatures are forecast to be 15 to 30 degrees below average on Saturday and 10 to 20 degrees below normal on Sunday. Freeze Warnings are in effect for parts of Nevada and Wyoming. Snow remains possible in higher elevations of the West, especially in the Central Rockies where several inches of snow is forecast, with lighter additional accumulations elsewhere in the Northern Rockies and Tetons. Gusty winds, dry fuels, and low relative humidities will combine to create conditions favorable for fire weather for much of the Southwest to Southern High Plains this weekend. There is an Elevated to Critical Risk of fire danger in these areas on Saturday, along with the possibility for dry thunderstorms. North-central California also has an Elevated Risk of favorable fire weather conditions on Saturday. An Elevated Risk remains for New Mexico on Sunday. Tate Graphics available at www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php