Cooler This Weekend

General Overview: ACTIVE WEATHER PATTERN DEVELOPING ACROSS THE CENTRAL AND EASTERN US WITH RAIN, SNOW, AND MIXED PRECIPITATION EXPECTED. A COLD FRONT WILL PUSH THROUGH THE EASTERN SEABOARD EARLY IN THE PERIOD, FOLLOWED BY HIGH PRESSURE. BY MIDWEEK, A NEW LOW PRESSURE SYSTEM DEVELOPS IN THE SOUTH CENTRAL REGION, BRINGING RAIN AND POTENTIAL WINTRY PRECIPITATION TO PARTS OF THE MISSISSIPPI VALLEY AND SOUTHEAST.

EAST:
A cold front will move through the Northeast and Mid-Atlantic regions on Sunday, with a low pressure system offshore. This will bring rain to coastal areas and the potential for mixed precipitation inland. By Monday, high pressure builds in from the west, leading to clearing conditions. Another area of high pressure will settle over the region by Tuesday, bringing generally dry weather. By Wednesday, precipitation chances increase across the Southeast as a new system develops to the west. This system will bring rain to much of the Southeast and potentially some mixed precipitation along its northern edge. The Ohio Valley and parts of the Appalachians could see wintry precipitation as the system progresses eastward.

Temperature Anomalies:
-Days 1-3: Below normal temperatures across Florida and the Southeast coast (3-6°F below average), while the Northeast experiences near normal to slightly above normal temperatures.

-Days 4-6: Increasingly below normal temperatures spreading across the eastern third of the country, with departures of 3-8°F below normal, particularly in the Mid-Atlantic and Southeast regions.

-Days 7-10: Below normal temperatures continuing across much of the region, especially in the Northeast and Great Lakes, with some moderation beginning in the Southeast where temperatures trend back toward normal by day 10.

CENTRAL:
High pressure will dominate the Central Plains early in the period, with generally quiet weather conditions. By Monday evening, a new area of high pressure builds across the Northern Plains while low pressure develops in the Upper Midwest. By Tuesday, this low pressure system shifts into Minnesota/Wisconsin, potentially bringing snow to portions of the Northern Plains. By Wednesday, a more significant low pressure system develops in the South Central region along a frontal boundary, bringing rain to much of the lower Mississippi Valley and potentially mixed precipitation or snow to parts of the Central Plains. This system will continue to strengthen as it moves eastward, with the cold front extending southward into Texas and the warm front pushing northeastward.

Temperature Anomalies:
-Days 1-3: Near normal to slightly below normal temperatures across most of the region, with colder air (3-6°F below normal) pushing into the Northern Plains by day 3.

-Days 4-6: Significantly below normal temperatures developing across the Northern Plains and Upper Midwest, with departures of 6-12°F below normal. The Southern Plains remain near normal.

-Days 7-10: Cold anomalies intensify and expand across the entire central region, with the Northern Plains and Upper Midwest experiencing temperatures 8-12°F below normal. The cold gradually spreads southward through the period.

WEST:
Generally quiet weather is expected across much of the Western region early in the period. High pressure will dominate across the Southwest and Intermountain West. By Tuesday, high pressure builds into the Northwest, maintaining dry conditions. Some light precipitation is possible in the Northern Rockies and Pacific Northwest at times. By midweek, moisture increases across the Southwest and parts of the Southern Rockies, bringing rain to lower elevations and snow to higher terrain. The Pacific Northwest will see periods of precipitation as systems move through.

Temperature Anomalies:
-Days 1-3: Above normal temperatures across much of the West, particularly in the Southwest and California where temperatures will be 3-6°F above normal.

-Days 4-6: Continued above normal temperatures for most of the region, especially across the Southwest and Great Basin. The Pacific Northwest begins to trend cooler with near normal temperatures.

-Days 7-10: Temperature pattern begins to shift with cooling spreading into the Northern Rockies and Pacific Northwest (3-6°F below normal), while the Southwest remains warmer than average (3-6°F above normal).

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