Below Seasonal Temperatures

General Overview: SIGNIFICANT SNOW AND FREEZING RAIN THREAT DEVELOPING ACROSS THE SOUTHEAST AND GULF COAST REGIONS THROUGH THE WEEKEND, WITH MIXED PRECIPITATION SPREADING ACROSS THE SOUTHERN TIER OF THE COUNTRY. MULTIPLE HIGH PRESSURE SYSTEMS WILL DOMINATE THE NORTHERN HALF OF THE NATION, BRINGING INCREASINGLY COLD CONDITIONS TO THE CENTRAL AND EASTERN REGIONS BY LATE WEEK.

EAST: Snow showers will persist over the Great Lakes and Northeast today and tomorrow as a clipper system passes to the north, with rain showers developing along a cold front further south into the Mid to Deep South. By Friday, high pressure will build into the region, bringing drier conditions. However, as we move into the weekend, a developing low pressure system off the Southeast coast will bring rain to coastal areas and mixed precipitation inland. Of particular concern is a significant freezing rain threat developing from Alabama to South Carolina. This freezing rain could lead to dangerous travel conditions and potential power outages. By Sunday evening, the coastal low will strengthen and move northeastward, with snow pushing into the Mid-Atlantic and Northeast.

Temperature Anomalies:

-Days 1-3: Below normal temperatures across most of the Northeast and Mid-Atlantic, with anomalies of 3-6 degrees below normal. The coldest conditions will be focused in northern New England.

-Days 4-6: Significantly below normal temperatures developing across the entire region, with anomalies increasing to 6-12 degrees below normal, particularly across the interior Northeast and Mid-Atlantic.

-Days 7-10: Continued below normal temperatures throughout the region, gradually moderating by day 10 but still remaining 3-6 degrees below normal for most areas.

CENTRAL: Today, scattered rain showers are expected to develop along the Southern Plains and Lower Mississippi Valley, with periods of snow continuing for the Northern Plains and Upper Midwest. A low pressure system over the Southwest on Thursday will track eastward, bringing precipitation to the Southern Plains by Friday. High pressure will dominate the Northern Plains and Upper Midwest, keeping those areas dry but increasingly cold. By Saturday, the low pressure system will strengthen and move into the Gulf Coast region, with a cold front extending westward and a warm front pushing northward. This will create a significant winter system will rain showers expected along coastal areas and snow further north. An area of freezing rain will become possible along the freezing line for parts of TX and LA. Multiple high pressure centers will continue to dominate the northern half of the region through the weekend, reinforcing the cold air.

Temperature Anomalies:

-Days 1-3: Near normal to slightly below normal temperatures across most of the region, with colder conditions developing across the Northern Plains.

-Days 4-6: Significant cold anomalies developing across the entire central region, with temperatures 6-12 degrees below normal across the Northern and Central Plains and Upper Midwest.

-Days 7-10: Continued below normal temperatures throughout the region, with the coldest anomalies (8-12 degrees below normal) focused on the Southern Plains and lower Mississippi Valley.

WEST: Dry weather is expected for most areas today and tomorrow, with light snow possible along the Northern Rockies. A low pressure system will be positioned over the Southwest on Friday, bringing scattered precipitation to the Four Corners region with rain showers and higher elevations snow. By Saturday, the weather pattern becomes more complex with low pressure systems developing along the Southwest coast and along the U.S.-Mexico border. Cold fronts will push inland from the Pacific, bringing rain to coastal areas and snow to higher elevations. High pressure will build into the Northern Rockies by the weekend, bringing drier and colder conditions to that region.

Temperature Anomalies:

-Days 1-3: Near normal to slightly above normal temperatures across most of the Southwest, with slightly below normal temperatures in the Pacific Northwest and Northern Rockies.

-Days 4-6: Warming trend across the Southwest with temperatures 3-6 degrees above normal, while the Pacific Northwest remains near normal.

-Days 7-10: Above normal temperatures expanding across the entire Western region, with the warmest anomalies (6-9 degrees above normal) focused on the Great Basin, Rockies, and portions of the Pacific Northwest.

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