Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 358 PM EDT Mon Apr 16 2018 Valid 00Z Tue Apr 17 2018 - 00Z Thu Apr 19 2018 ...Precipitation lessens for the Northeast but some snow remains possible in the Great Lakes region... ...Storm system moves from Northwest into Plains and Upper Midwest with more winter weather... ...Critical to extremely critical fire weather conditions for Southwest to Southern and Central High Plains... As the infamous low pressure system that has caused a myriad of weather conditions across the central and eastern U.S. (see our Storm Summary) continues to move northeastward through the Northeast, heavy rain and snow will lessen for the Northeast on Monday night. However, upper-level support will lead to some additional snow for the Great Lakes region. 2 to 4 inches of snow, with locally higher amounts, is expected through Tuesday evening near the Upper Great Lakes, as well as for the Lower Great Lakes through Wednesday. Additional accumulating freezing rain will be confined to northern New Hampshire and western Maine as the low pulls away tonight. In the western U.S., an upper-level low and cold air behind a surface frontal system will lead to snow for the Cascades, Great Basin, and Northern and Central Rockies through Tuesday. Higher elevations of the Cascades, Wasatch, and Rockies could see 6 to 10 inches of snow. As the surface and upper-level lows continue moving eastward, snow and freezing rain are forecast once again for the Northern Plains to Upper Mississippi Valley on Tuesday night into Wednesday. The Minnesota/Iowa border is expected to have the highest snowfall totals through Wednesday evening, with 6 to 10 inches of snow possible. Freezing rain accumulations will generally be under a tenth of an inch. Warmer than normal temperatures, windy conditions, and ongoing drought in the Southern and Central High Plains will combine to produce critical fire weather conditions through Monday evening, and worsen to extremely critical on Tuesday. Red Flag Warnings are widespread throughout these areas. See the Storm Prediction Center's website and your local office for further information on this threat. The cold front passing through on Tuesday night and Wednesday will help raise relative humidity and lessen the fire threat. Temperatures elsewhere will generally be colder than average. Freeze Warnings and Frost Advisories are in place over parts of the Ohio and Tennessee Valley regions into the North Carolina and Virginia Piedmont. Tate Graphics available at www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php