Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 256 PM EST Sun Dec 17 2017 Valid 00Z Mon Dec 18 2017 - 00Z Wed Dec 20 2017 ...Snow for the Rockies and rain for the Gulf Coast... Coastal rain and mountain snow across the Pacific Northwest and Northern Rockies will persist and spread into the adjacent Northern Plains as a cold front drops south from Canada over the next few days. A steady stream of Pacific moisture directed inland will aid in the development of heavy snow across parts of Washington state and for the Northern Rockies. Additionally, parts of eastern Arizona and western New Mexico have light snow forecast with a surface low settling southward across that region. A surface low pressure system will track through the Southern Rockies and hang out over the Southern Plains. Deeper moisture returning northward from the Gulf of Mexico will fire showers and thunderstorms along this boundary, which may lead to locally heavy rainfall at times. The region that will likely get the heaviest rain would be from eastern Texas to the central Gulf Coast region, with daily areal averages of 1 to locally 2 inches forecast through Monday night. There may be a few instances of flooding where areas of thunderstorm activity persists. Elsewhere, warm and dry conditions are expected for Florida and the lower elevations of California going into the early part of the work week. Campbell Graphics available at www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php