US Day 3-7 Hazards Outlook NWS Weather Prediction Center College Park MD 348 PM EST Wed Jan 26 2022 Valid Saturday January 29 2022 - Wednesday February 02 2022 Hazards: - Heavy rain across portions of the Middle/Lower Mississippi Valley, the Tennessee Valley, the Great Lakes, the Southeast, the Southern Plains, and the Ohio Valley, Wed, Feb 2. - Heavy snow across portions of the Mid-Atlantic and the Northeast, Sat-Sun, Jan 29-Jan 30. - High winds across portions of the Southeast, the Mid-Atlantic, and the Northeast, Sat-Sun, Jan 29-Jan 30. - Much below normal temperatures across portions of the Mid-Atlantic, the Mississippi Valley, the Central/Southern Appalachians, the Tennessee Valley, the Northeast, the Southeast, the Great Lakes, and the Ohio Valley, Sat-Sun, Jan 29-Jan 30. - High significant wave heights for coastal portions of the Mid-Atlantic and the Northeast, Sat, Jan 29. - Heavy precipitation across portions of the Alaska Panhandle and mainland Alaska, Sat, Jan 29. Detailed Summary: Deep storm off the Northeast Coast will produce a wide assortment of hazards over the country's northeast corner from Saturday to late Sunday. Starting off, cold air associated with high-pressure will build over the Midwest on Saturday. As a result, the temperatures will be below average from the Great Lakes to the Central Gulf Coast and from the Northeast to Florida; therefore, an area of Much Below Normal Temperatures is on the Hazards Chart for Saturday and Sunday. Low temperatures will be in the single digits below zero over the Upper Midwest to the Northeast on Saturday morning; the temperatures will begin to moderate on Sunday. The low temperatures will be from the low-thirties to the low to mid-twenties from the Central Gulf Coast to Florida Panhandle and northern peninsula. Furthermore, a rapidly deepening area of low pressure will have a strong pressure gradient, producing an area of High Winds from the Northeast to the Carolinas on Saturday and Sunday. In addition, the storm will produce an area of Heavy Snow from parts of the Mid-Atlantic to the Northeast on Saturday and Sunday. The snow will result in reduced visibility and hazardous driving conditions. On Saturday, significant waves will impact the Northeast Coast, producing beach erosion and coastal flooding. Meanwhile, low pressure over the Northern Plains/Central Canada will move across the Great Lakes producing light snow over the Upper Great Lakes into parts of the Ohio Valley and the Central Appalachians on Saturday and Sunday. In addition, a front moving onshore over the West Coast will produce rain and higher elevation snow over the Northwest and snow over parts of the Northern Rockies and Northern Intermountain Region from late Sunday into Tuesday. On Tuesday, as the front moves across the Upper Great Lakes to the Southern Plains, moisture from the Gulf of Mexico will start to pool along the boundary. Rain will develop along the front over the Southern Plains as a result. By Wednesday, as more moisture pools along the boundary, an area of Heavy Rain will develop over the Lower/Middle Mississippi Valley and adjacent regions along with parts of the Ohio/Tennessee Valleys. . . .Alaska. . . An area of deep low pressure over the Gulf of Alaska will slowly move southeastward into Western Canada by Monday. The storm will stream moisture into the Kenal peninsula to the Alaska Panhandle, producing an area of heavy precipitation over the region on Saturday. Additionally, an area of low pressure will slowly move eastward along the Aleutians, which will produce areas of wind and precipitation over the Aleutians from Saturday into Monday, with a new area of low pressure to impact the region on Tuesday. On Wednesday, low pressure will move into the Gulf of Alaska, producing precipitation from the Aleutians to the Panhandle. Ziegenfelder