Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 305 AM EST Sun Nov 25 2018 Valid 12Z Sun Nov 25 2018 - 12Z Tue Nov 27 2018 ...Significant winter storm will bring heavy snow and potential blizzard conditions from the Central Plains into the Great Lakes through Monday... ...Light ice and snow accumulations possible for interior New England before drying out later today... ...Heavy precipitation returns to the Pacific Northwest by Monday... A vigorous upper level low pushing across the central Plains also has an accompanying surface low that will move into the middle Mississippi Valley this afternoon. Heavy to significant snowfall is expected in parts of the central Plains and Missouri River Valley today, moving into the upper Great Lakes by this evening and Monday. A swath of 10+ inch snowfall totals are expected, with locally higher amounts over a foot is possible--particularly in eastern Iowa/western Illinois. In addition to heavy snow, strong winds will accompany this system resulting in potential blizzard conditions and dangerous travel conditions to end the Holiday Weekend. Blizzard and winter storm warnings, along with winter weather advisories and winter storm watches are in effect across the central High Plains eastward into the Middle Mississippi Valley and portions of the upper Great Lakes. Please see www.weather.gov for addition details on watches and warnings. The heavy rainfall that impacted the Mid-Atlantic on Saturday has shifted to the Northeast in the early hours of Sunday morning. During the day, the surface low that was moving along the Mid-Atlantic coast is expected to move farther east into the Atlantic Ocean. This is taper off precipitation across New England later this morning and into the afternoon. However, light ice accumulations are possible this morning in parts of New Hampshire and Maine which currently have winter weather advisories. By late tonight and early Monday morning, New England will be dry. This will be temporary as another system will move toward the East Coast on Monday, bringing another round of showers to the Mid-Atlantic and Northeast Monday night into early Tuesday morning. The Pacific Northwest will can expect a dry second half of the weekend. However, a strong upper level trough and a surface front will approach the region by Monday. Light showers will begin on Monday morning with an increase in coverage of showers and higher elevation snow by Monday night and into Tuesday morning. This precipitation will stretch down into northern California by Tuesday and is expected to continue beyond the short range period. High temperatures will remain well above normal in the Ohio Valley today--with values about 5 degrees above normal across the Southeast and into the Mid-Atlantic. As the strong cold front sweeps across the central U.S., high temperatures will be nearly 20 degrees below average. By Monday, these colder conditions will move eastward across the Mississippi Valley and Ohio Valley; on Tuesday, the East Coast will experience below normal temperatures. The western U.S. can expect to be above average throughout the short term. Reinhart Graphics available at www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php