Temperatures Falling

General Overview: SIGNIFICANT WINTER WEATHER IMPACTS ACROSS THE NORTHEAST WITH POTENTIAL FOR HEAVY SNOW AND FREEZING RAIN THROUGH TUESDAY. MIXED PRECIPITATION EXPECTED ACROSS PORTIONS OF THE SOUTHWEST AND SOUTHERN PLAINS. TEMPERATURES WILL FLUCTUATE DRAMATICALLY WITH WELL ABOVE NORMAL READINGS IN THE SOUTHEAST EARLY WEEK TRANSITIONING TO BELOW NORMAL, WHILE THE WESTERN U.S. EXPERIENCES WARMING TREND THROUGH THE EXTENDED PERIOD.

EAST:
A potent winter storm system will impact the Northeast through Tuesday, bringing significant winter weather hazards. Heavy snow is possible across portions of New York and New England, with freezing rain potential creating dangerous travel conditions. The low pressure system centered over the Northeast will gradually move eastward by midweek. Rain will spread across portions of the Mid-Atlantic and Southeast coastal areas early in the period. By Wednesday, conditions will improve as high pressure builds in from the south. The Gulf Coast will see scattered rain showers early in the week before drier conditions prevail. By late week, a new frontal system approaches from the west, bringing rain to the Southeast and Gulf Coast regions by Friday.

Temperature Anomalies:

-Days 1-3: Well above normal temperatures (6-12°F above average) across much of the Southeast and Mid-Atlantic early in the period, with below normal temperatures (-3 to -6°F) in the Northeast. Temperatures will gradually cool across the region by day 3.

-Days 4-6: Below normal temperatures spread across most of the Eastern Seaboard (-3 to -6°F), particularly in the Northeast and Mid-Atlantic. Florida remains slightly above normal.

-Days 7-10: Near normal to slightly below normal temperatures for most areas, with gradual moderation. Light below normal anomalies (-2 to -4°F) persist in parts of the Northeast.

CENTRAL:
High pressure will dominate the Central Plains early in the week, with generally quiet weather conditions. A low pressure system over Colorado will bring mixed precipitation to portions of the Southern Plains on Monday and Tuesday. By midweek, high pressure shifts eastward, allowing for dry conditions across most of the region. The Northern Plains will see a cold front move through by Tuesday, bringing cooler temperatures. Later in the week, a new frontal system develops in the Southern Plains, bringing rain to portions of Texas, Louisiana, and Arkansas by Friday. This system will gradually move eastward through the weekend.

Temperature Anomalies:

-Days 1-3: Near to slightly below normal temperatures across most of the Central Plains and Midwest (-2 to -4°F), with colder anomalies in the Northern Plains. Southern Plains will experience above normal temperatures early, then cooling.

-Days 4-6: Below normal temperatures (-3 to -6°F) across the Northern Plains and Upper Midwest, with near normal temperatures in the Central Plains. Southern Plains will see warming to above normal (+3 to +6°F).

-Days 7-10: Warming trend continues with above normal temperatures (+3 to +6°F) spreading across the Southern and Central Plains. Near normal temperatures return to the Northern Plains and Upper Midwest.

WEST:
Multiple high pressure systems will dominate the Western U.S. early in the week, with one centered over the Pacific Northwest and another over the Southwest. These will bring generally dry conditions to much of the region. By midweek, a low pressure system approaches the West Coast, bringing rain and higher elevation snow to California and the Pacific Northwest. Mixed precipitation is expected across portions of Arizona and New Mexico early in the period. By Thursday and Friday, precipitation spreads across much of the Western states, with rain along the coast and snow in the higher elevations of the Rockies and Sierra Nevada. The Southwest will remain relatively dry through the extended period.

Temperature Anomalies:

-Days 1-3: Near normal to slightly below normal temperatures across the Pacific Northwest and Northern Rockies, with above normal temperatures (+3 to +6°F) developing in the Southwest.

-Days 4-6: Warming trend continues with above normal temperatures (+3 to +8°F) spreading across the Rockies and Great Basin. Particularly warm in parts of Wyoming, Colorado, and Utah (+6 to +10°F).

-Days 7-10: Continued above normal temperatures (+3 to +8°F) throughout most of the Western states, with the warmest anomalies in the Northern Rockies and Montana.

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