US Day 3-7 Hazards Outlook NWS Weather Prediction Center College Park MD 329 PM EST Fri Jan 07 2022 Valid Monday January 10 2022 - Friday January 14 2022 Hazards: - Heavy rain across portions of the Pacific Northwest and the Northern Great Basin, Tue-Thu, Jan 11-Jan 13. - Heavy rain across portions of the Southeast, the Lower Mississippi Valley, the Southern Plains, and the Tennessee Valley, Thu-Fri, Jan 13-Jan 14. - Much below normal temperatures across portions of the Middle Mississippi Valley, the Great Lakes, the Upper Mississippi Valley, and the Northern Plains, Mon-Tue, Jan 10-Jan 11. - Much below normal temperatures across portions of the Mid-Atlantic, the Northeast, and the Great Lakes, Tue-Wed, Jan 11-Jan 12. - Heavy precipitation across portions of the Alaska Panhandle and mainland Alaska, Mon-Tue, Jan 10-Jan 11 and Thu-Fri, Jan 13-Jan 14. - High winds across portions of mainland Alaska and the Aleutians, Thu, Jan 13. Detailed Summary: Cold high pressure moving southward out of Western Canada will produce low temperatures in the low twenties below zero with highs in the single digits below zero over the Upper Midwest on Monday and Tuesday. Therefore, the Hazards Chat will have an area of Much Below Normal Temperatures from the Northern Plains to the Great Lakes. Wednesday, the high moves across the Great Lakes/Ohio Valley into the Northeast. Low temperatures will be below zero in the low to mid-twenties over Northern Maine and with single digits into the northern Mid-Atlantic on Wednesday. Also, the high temperatures will be in the single digits below zero. Therefore, an area of Much Below Normal Temperatures is on the Hazards Chart for Tuesday and Wednesday. Low pressure lingering across the Great Lakes and the area of high pressure moving eastward will produce strong winds across the Great Lakes and Northern High Plains on Monday into Wednesday. However, the wind speed will not meet the criteria for an area of High Winds for the Hazards Chart. Meanwhile, moisture plume will clip the northwestern portions of Washington State from Tuesday into Thursday. Heavy Rain will develop over parts of the Olympic Peninsula and northernmost parts of the Cascades from Tuesday into Thursday. A front will move across the Southern Plains into the Lower Mississippi Valley on Thursday and Friday. Moisture from the Western Gulf of Mexico will stream northward, crossing the boundary producing an area of Heavy Rain over parts of the Southern Plains on Thursday that will expand into parts of the Lower Mississippi and Tennessee Valleys on Friday. There is uncertainty with how large the area of Heavy Rain will be. However, a slightly larger area is depicted on the Hazards Chart to cover some of this uncertainty. Over Alaska, an area of low pressure over the Gulf of Alaska and a second low farther south over the Gulf of Alaska will aid in streaming moisture into Kodiak Island eastward to the Alaskan Panhandle, producing an area of Heavy Precipitation over the region on Monday and Tuesday. There will be a brief break in the precipitation on Wednesday. On Thursday, an area of deep low pressure south of the Aleutians over the North Pacific will produce an area of High Winds over the Western Gulf of Alaska and the adjacent Alaska Peninsula. A second area of low pressure over British Columbia/Alaskan Panhandle will stream moisture into the Alaskan Panhandle, producing a new round of Heavy Precipitation from the panhandle to Kodiak Island on Thursday. On Friday, the deep low from the North Pacific will move into the Western Gulf of Alaska, streaming additional moisture into the panhandle. Therefore, an area of Heavy Precipitation is on the Hazards Chart on Friday as well from the panhandle to Kodiak Island. The systems will raise the snow levels/freezing levels allowing rain to fall on snow over the region. The snowmelt and rain could produce localized areas of flooding. Ziegenfelder