Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 319 AM EST Thu Nov 10 2022 Valid 12Z Thu Nov 10 2022 - 12Z Sat Nov 12 2022 ...Tropical Cyclone Nicole will continue impacting Florida, Georgia, and South Carolina today, impacts will spread north Friday into the weekend... ...Heavy snow and blizzard conditions possible in the northern High Plains, Great Plains, and Upper Mississippi Valley today into Friday... ...Strong cold front to spread below normal temperatures across most of the nation by the end of the weekend... Tropical cyclone Nicole made landfall early this morning just south of Vero Beach on the Florida east coast. The system is forecast to track northwest across Florida today, then curve northeast overnight and track along the Appalachians towards the Mid-Atlantic region on Friday. Tropical hazards will impact areas far outside the forecast cone produced by the National Hurricane Center, and impacts are expected for much of the Southeast. Tropical storm conditions will continue for Florida, Georgia, and South Carolina within the warning areas today. Increased waves and storm surge are expected along the east coast from south Florida to southern North Carolina and along the west coast of Florida. Marine and beach conditions will be especially dangerous for Florida and coastal Georgia. Heavy rainfall will continue today across the Florida peninsula and will likely result in flash, urban, and river flooding. Heavy rainfall will spread northwards Friday into Saturday, and isolated flash, urban, and small stream flooding will be possible on Friday in the Southeast through the southern and central Appalachians, including the Blue Ridge Mountains, and extending northward through west-central Pennsylvania into western New York by Friday night into Saturday. In addition to damaging winds, storm surge, and heavy rainfall, there will be the potential for several tornadoes north and east of the cyclone's center from central Florida to the Carolinas. See nhc.noaa.gov for the latest information regarding Nicole. While Nicole reminds us we are still in Hurricane Season, it will feel more like the winter season in the northern central U.S. as a deepening low pressure system brings winter storm conditions to the region. Heavy snow, as well as sleet and freezing rain, will impact the northern High Plains, Great Plains, and Upper Mississippi Valley today into Friday. Heavy snowfall rates of 1-2"/hr are possible today from the Dakotas eastward into northwestern Minnesota. Gusty winds combined with heavy snow could produce blizzard conditions at times. Total snowfall will likely exceed 12" in some locations. Blizzard Warnings, Ice Storm Warnings, and Winter Storm Warnings are in effect for the Dakotas, northwestern Minnesota, and eastern Montana. Ahead of the low pressure system, isolated severe thunderstorms will be possible across portions of the Upper Midwest today where the Storm Prediction Center has issued a Marginal Risk of severe thunderstorms (level 1/5). Damaging winds and a brief tornado will be possible. The low pressure system will continue to move north-northeast through the end of the week and pull a strong cold front towards the east coast this weekend. Cold, arctic air will move in from the north as strong high pressure builds behind the front and below normal temperatures are forecast to spread across most of the nation by Sunday. The coldest temperatures are expected in the northern Plains today and Friday, high temperatures are forecast to only reach the teens and lower 20s and low temperatures are forecast to drop into the single digits. Dolan Graphics available at https://www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php