Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 357 PM EDT Tue Mar 26 2024 Valid 00Z Wed Mar 27 2024 - 00Z Fri Mar 29 2024 ...Severe Weather potential over parts of the Upper Great Lakes tonight... ...Heavy to Excessive Rainfall possible over portions of the Southeast and Mid-Atlantic... ...Unsettled weather returns to the Northwest on Wednesday... Heavy snow and blizzard conditions associated with a deep mid-latitude cyclone that impacted the Northern/Central Plains and Upper Midwest the past few days has ended, but some lingering mainly light snows may continue into tonight across parts of the Upper Great Lakes. Behind the associated cold front, a chilly airmass will continue to spread across the Great Plains and Midwest into Wednesday. The greatest anomalies on Wednesday will be across the Northern Plains/Upper Midwest where daytime highs 15-25 degrees below average are possible, with temperatures moderating thereafter. Widespread showers and thunderstorms are expected to accompany the above mentioned cold front through Thursday as it slowly progresses through the Midwest and East Coast states. Into this evening, the Storm Prediction Center highlights portions of southern Michigan into Indiana and Ohio within a slight risk (level 2/5) of Severe Thunderstorms. On Wednesday, the heaviest rains are expected across parts of north Florida and into the Southeast as additional moisture gets pulled northward due to a second wavy front and developing surface low where WPC has a slight risk for excessive rainfall. Showers and storms will continue across the Northeast into Thursday, though heaviest rainfall should be confined across portions of the Carolinas and the DelMarVa, and up the Northeast Coast posing a mainly localized flash flood threat. Unsettled weather will continue across the Northwest during the short range, with low elevation rain and mountain snows. Favorable upslope regions may have the greatest threat for heavy to excessive rainfall, particularly across southwest Oregon/northwest California on Wednesday. Accumulating snowfall is possible particularly across the highest elevations of the Cascades, Sierra Nevada, and into the northern Rockies. Santorelli Graphics available at https://www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php