Lingering Lake Effect

General Overview: ACTIVE WEATHER PATTERN ACROSS THE NATION WITH HEAVY SNOW AND MIXED PRECIPITATION ACROSS THE PACIFIC NORTHWEST AND NORTHERN ROCKIES, WHILE RAIN AND THUNDERSTORMS DEVELOP ACROSS THE GULF COAST AND SOUTHEAST. TEMPERATURES WILL REMAIN SIGNIFICANTLY BELOW NORMAL ACROSS THE EASTERN HALF OF THE COUNTRY WHILE THE WESTERN STATES EXPERIENCE ABOVE NORMAL WARMTH.

EAST:
High pressure will dominate the Eastern Seaboard initially, providing generally quiet weather conditions. By midweek, a developing low pressure system will track across the Southeast and Gulf Coast regions, bringing rain and thunderstorms to portions of Louisiana, Mississippi, and Arkansas. As this system progresses, precipitation will spread northeastward. The Great Lakes region will see mixed precipitation developing by Tuesday, with potential for freezing rain in some areas. By Thursday, a more significant storm system will affect the Northeast and Mid-Atlantic with rain transitioning to snow, while low pressure centers develop over the Great Lakes. Cold air will remain entrenched across much of the region through midweek before gradually moderating.

Temperature Anomalies:
-Days 1-3: Significantly below normal temperatures across the entire Eastern region, with anomalies of 6-12 degrees below normal, particularly across the Ohio Valley and Mid-Atlantic states.
-Days 4-6: Gradual moderation with temperatures trending closer to normal, though still slightly below average for most areas. The Northeast will see temperatures recover to near normal by day 6.
-Days 7-10: Warming trend continues with temperatures climbing to near or slightly above normal for most areas, particularly across the Southeast and Mid-Atlantic regions.

CENTRAL:
A cold front will push through the Central Plains early in the period, bringing a chance of snow to portions of the Northern Plains. By Tuesday, low pressure will develop over New Mexico and begin to track northeastward, bringing rain and thunderstorms to the South Central states. This system will strengthen as it moves into the Central Plains by midweek. Mixed precipitation and snow will develop across the Northern Plains and Upper Midwest as the system progresses. By late week, high pressure builds into the Central Plains, bringing drier conditions. Another system may affect the region by the weekend with precipitation chances returning to the Southern Plains.

Temperature Anomalies:
-Days 1-3: Below normal temperatures across the eastern portions of the Central region, with near normal to slightly above normal temperatures in the western portions.
-Days 4-6: Warming trend develops with temperatures climbing to above normal across most of the region, particularly across the Southern Plains where anomalies may reach 6-10 degrees above normal.
-Days 7-10: Continued above normal temperatures expanding across the entire Central region, with the warmest anomalies (8-12 degrees above normal) focused on the Southern Plains and lower Mississippi Valley.

WEST:
An active pattern will persist across the Pacific Northwest and Northern Rockies with multiple systems bringing precipitation. Heavy snow is possible in the Washington Cascades and Northern Rockies, with heavy rain and potential flooding along the immediate coast. High pressure will dominate the Southwest initially, but will gradually weaken as systems move through the Northwest. By midweek, precipitation will spread into portions of the Northern and Central Rockies. The Southwest will remain mostly dry throughout the period. A series of low pressure systems will affect the Pacific Northwest through the end of the week, maintaining precipitation chances there.

Temperature Anomalies:
-Days 1-3: Significantly above normal temperatures across the entire Western region, with anomalies of 6-12 degrees above normal in the Rockies and Great Basin.
-Days 4-6: Continued above normal temperatures, though some moderation in the Pacific Northwest as systems move through. The Southwest and Rockies remain 8-12 degrees above normal.
-Days 7-10: Persistent above normal temperatures across most of the West, particularly across the Four Corners region where anomalies may reach 10-14 degrees above normal.

TROPICAL:
No tropical cyclone activity is expected during the next 7 days in either the Atlantic or Eastern Pacific basins.