Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 351 AM EDT Thu Sep 08 2016 Valid 12Z Thu Sep 08 2016 - 12Z Sat Sep 10 2016 ...Remnants of Hermine will dissipate near the New England coast this evening... ...Frontal boundary expected to bring strong thunderstorms and heavy rain from the central plains to the Midwest... ...Moisture associated with Newton is expected to spread heavy rain across the Desert Southwest... The remnant low of Hermine will continue to weaken throughout the day and is expected to dissipate this evening near the Rhode Island and Massachusetts coast. A few lingering showers will be possible this morning for portions of New England. Warm and moist air will begin to spread northward into much of the eastern U.S. under the influence of an upper-level ridge where afternoon high temperatures are forecast to rise well into the 90s. Warm, moist air streaming northward from the Gulf of Mexico will interact with a cold front over the northern and central Plains today - severe thunderstorms and periods of heavy rainfall be be possible today and Friday. The upper-level trough associated with the front will help the surface front to advance eastward over the next few days. An additional round of showers and thunderstorms is forecast for the central Plains and Upper Midwest this weekend as another disturbance cross the northern Rockies and merges with the first system. The risk for flash flashing will be elevated across the central U.S., especially for eastern Kansas and western Missouri where 3-day totals may be upwards of 4.5 inches. Cooler air will infiltrate the northern Rockies and northern Plains and will surge into the central Plains as the cold front continues to move southward. The northern tier states will likely have afternoon temperatures average 10+ degrees cooler than those typical for early September. Arizona and New Mexico have observed several inches of rain from Post-Tropical Cyclone Newton as it tracked northward into the Desert Southwest. This storm has quickly weakened during the overnight hours and is forecast to dissipate this morning. However, tropical moisture associated with its remnants will continue to bring heavy downpours from eastern Arizona into western New Mexico - flash flooding and mud slides are possible. Campbell Graphics available at www.wpc.ncep.noaa.gov/basicwx/basicwx_wbg.php