Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 455 PM EDT Sat Jun 06 2015 Valid 00Z Sun Jun 07 2015 - 00Z Tue Jun 09 2015 ...Flash flooding and severe storms possible with a cold front pressing through the Upper Midwest and Ohio Valley... ...Scattered shower activity expected across the central Great Basin and Rockies... Active weather will accompany a cold front while it crosses the Upper Midwest on Sunday and presses through the Great Lakes and Ohio Valley on Monday. Forcing aloft and abundant low-level moisture should ignite and fuel organized convection along and ahead of the boundary...which will heighten the risk of flash flooding and severe weather. High pressure Out west...another afternoon of scattered showers and thunderstorms is expected across the central Great Basin and Rockies. However...activity should begin to decrease as an upper low weakens and lifts out of the region. Farther north...a building ridge will keep temperatures above normal across the Pacific Northwest. Gerhardt Graphics available at www.wpc.ncep.noaa.gov/basicwx/basicwx_wbg.php