Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 335 PM EDT Wed Oct 01 2025 Valid 00Z Thu Oct 02 2025 - 00Z Sat Oct 04 2025 ...Imelda accelerating eastward out to sea; swells, high surf, and dangerous rip currents continue along much of the East Coast the next several days... ...Thunderstorms and heavy rainfall expected along the southeast Atlantic coast with isolated flash flooding possible... ...Cool and unsettled weather persists across portions of the Great Basin and Pacific Northwest... ...Unseasonably hot temperatures continue for much of the Plains and Midwest through the remainder of the week... Imelda continues on an east-northeast track in the southwest Atlantic Ocean and is now accelerating farther out to sea. In its wake, strong high pressure will descend southward from Canada and settle over the Northeast and Mid-Atlantic by the end of the week. A prolonged stretch of strong, easterly, onshore flow on the southern periphery of the dome of high pressure combined with the increased wave action generated by both Imelda and the remnants of Humberto will continue to lead to swells, high surf, dangerous rip currents, and some coastal flooding along much of the East Coast the next several days, lasting longest along the coast of the Carolinas. Additionally, the moist onshore flow will bring repeated rounds of thunderstorms first to the Atlantic Coast of Florida and eventually extending further north along the coast of Georgia and possibly as far as the Carolinas. Locally intense downpours producing several inches of rain are possible, and at least an isolated risk of flash flooding will exist for the next few days. Unsettled and unseasonably cool weather will continue for parts of the Pacific Northwest, Great Basin, and Intermountain West the next few days as persistent upper-level troughing and a couple frontal systems pass through the region. Moist Pacific flow combined with a series of surface fronts and upper-level disturbances will bring periodic waves of showers and thunderstorms through the end of the week. Even a little bit of snow could mix in with the rain in the highest elevations. In the lower elevations, some of the more intense showers and thunderstorms could contain periods of heavier rainfall. While the overall threat remains low, localized flash flooding will be possible, particularly for portions of the Olympics and the northern Great Basin to Sierra foothills vicinity on Thursday, and across the northern Rockies into the northern Great Basin Friday. The increased presence of clouds and precipitation associated with the passing disturbances and persistent upper-level troughing will result in high temperatures roughly 5 to 15 degrees below normal across much of the western U.S. through Friday and leading into the weekend. A large and strengthening upper-level ridge over the central U.S. will continue to produce an extended period of unseasonably hot weather across the Plains and Midwest through the end of the week. The hottest weather relative to climatology will be confined to the northern Plains and Upper Midwest, where high temperatures will soar to between 10 and 20 degrees above normal today and Thursday, to between 20 and 30 degrees above normal on Friday. In fact, several places have the potential to tie or break high temperature records on Friday. One such location is Minneapolis, MN with a forecast high of 90 degrees set to tie the daily record of 90F set back in 1997. Safe to say, it will be feeling much more summer-like than fall-like as we roll the calendar into October. Meanwhile, the noted high pressure over the eastern U.S. will bring much more seasonable temperatures to much of the region heading into the weekend after a warmer and muggier start to the week. In addition, lows forecast to drop into the 30s Thursday morning have prompted Frost and Freeze-related Advisories across portions of coastal Maine, into the interior of New England/upstate New York, and southward through the northern/central Appalachians. Putnam/Miller Graphics available at https://www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php