Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 312 AM EDT Wed Oct 16 2019 Valid 12Z Wed Oct 16 2019 - 12Z Fri Oct 18 2019 ...Developing coastal storm to bring heavy rain and strong winds to the Northeast late Wednesday into Thursday... ...Heavy rain and mountain snows likely across parts of the Pacific Northwest... A surface low developing off the DelMarVa coast by Wednesday afternoon is forecast to rapidly deepen as it lifts up the coast into New England by Thursday morning. This system, in combination with an advancing cold front just to the west, will bring heavy rainfall and gusty winds to much of the Northeast Wednesday into Thursday. Upwards of 2-3+ inches of rain could fall with this storm, especially from eastern New York to southern Maine and localized flash flooding is possible. Farther south, locally heavy rain and thunderstorms are also likely from the Carolinas to the Gulf Coast along the associated cold front. This system brings in a chilly airmass, with afternoon highs 10 to 20 degrees below normal from the eastern Plains/Mississippi Valley to the Ohio Valley and Central Appalachians. Meanwhile out west, a couple of cold fronts into the Pacific Northwest will bring rain and mountain snows to much of the Northwest into the Northern Rockies. Locally heavy rainfall is possible along the favored terrain, with accumulating snow in the highest elevations of the Washington/Oregon Cascades. Ahead of this, temperatures are forecast to be very warm from the Great Basin to the High Plains with daytime highs into the 70s for many. Warm temperatures, low humidity, and gusty winds will combine to bring an elevated fire weather threat across portions of this region, with red flag warnings currently in effect across southeast Wyoming. Santorelli Graphics available at www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php