Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 355 AM EDT Mon Oct 14 2024 Valid 12Z Mon Oct 14 2024 - 12Z Wed Oct 16 2024 ...Rain and snow showers forecast across the Northeast, Great Lakes, and Pacific Northwest over the next few days... ...Well below average temperatures to chill much of the central and eastern United States... ...Summer-like warmth continues over parts of southeast Texas, the northern Rockies, and northern High Plains... A relatively quiet weather pattern is anticipated to remain over the Lower 48 through midweek as a large and dominant high pressure system builds into the Nation's Heartland. Unsettled weather is forecast to occur on the periphery of this high pressure system, which includes the Northeast and Great Lakes, as well as the Northwest. For the Northeast, rain and snow showers will be associated with a deepening low pressure system organizing near the New England coastline today before racing northward into eastern Canada. Strong gusty northwesterly flow will lead to favorable upslope precipitation across the Adirondacks, central Appalachians, and northern New England ranges, as well as lake effect showers over the next few days. Measurable snowfall is most likely in the higher elevations of northern New York, Vermont, and New Hampshire. Meanwhile, a pair of cold fronts marching through the Northwest will offer light to moderate precipitation chances into the northern Great Basin by midweek, with snow likely in the Cascades. The aforementioned potent high pressure system will also usher in a crisp autumn airmass into much of the central and eastern U.S. through midweek as highs only reach the 50s and 60s for most locations. Widespread low temperatures will also dip below average for this time of year and into the 30s, creating the potential for some places to see their first frost or freeze of this fall season. This cool weather will be far-reaching and reach the Gulf Coast and even northern Florida by Wednesday, albeit with slightly warmer temperatures compared to northern areas. Summer-like warmth is set to continue for parts of central and southeast Texas over the next couple of days in advance of the sinking cold front as high temperatures rise into the mid-90s. These readings could break a few daily high temperature records, including for cities such as Houston, Austin, San Antonio, and Corpus Christi. Broad southerly flow will also allow for warmer temperatures throughout the Intermountain West, northern Rockies, and northern High Plains. Highs into the 70s and 80s will be widespread, which equates to around 15-20 degrees above average. Snell Graphics available at https://www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php