Rain and Some Storms

General Overview: ACTIVE WEATHER PATTERN DEVELOPING ACROSS THE NATION WITH MIXED PRECIPITATION ACROSS THE NORTHERN TIER, HEAVY RAIN AND THUNDERSTORMS SPREADING ACROSS THE SOUTHEAST AND GULF COAST THROUGH THE WEEKEND, AND SIGNIFICANT TEMPERATURE SWINGS EXPECTED AS COLD FRONTS PUSH THROUGH THE CENTRAL AND EASTERN REGIONS.

EAST:  
Today, widespread rain and thunderstorms will develop across much of the Southeast and Mid-Atlantic regions. Some of these storms could become severe, particularly along the Gulf Coast and into Florida. As the system progresses, precipitation will spread northward into the Northeast by Saturday, with rain along the coast and a wintry mix possible in interior sections of New England. The low pressure system will intensify as it moves up the Eastern Seaboard on Sunday, bringing additional rounds of precipitation. By early next week, colder air will filter in behind the departing system, changing any lingering precipitation to snow across portions of the Northeast and Great Lakes region. Rainfall amounts could be substantial across the Southeast, with several inches possible in some locations.

Temperature Anomalies:

-Days 1-3: Generally near to slightly above normal temperatures early, with warming conditions across the Southeast and Mid-Atlantic. Cooler than normal conditions will begin to develop in the Northeast by day 3.

-Days 4-6: A significant cooling trend will develop as the cold front pushes through, with below normal temperatures spreading across most of the region, particularly in the Southeast where temperatures could fall 6-12 degrees below normal.

-Days 7-10: Temperatures will moderate somewhat but remain below normal across portions of the Southeast and Mid-Atlantic, while returning closer to normal in the Northeast.

CENTRAL:  
The Central United States will experience a complex weather pattern over the next several days. Initially, a frontal boundary will stretch from the Northern Plains southeastward through the Midwest, bringing mixed precipitation to portions of the Northern Plains and Upper Midwest. As this system progresses, low pressure will develop along the front, enhancing precipitation across the region. Today into Saturday, the system will reorganize with a new area of low pressure developing in the Southern Plains. This will bring rain and thunderstorms to portions of the Central and Southern Plains, while mixed precipitation continues across the Upper Midwest and Northern Plains. Cold air will filter in behind the front, changing precipitation to snow across portions of the Northern Plains and Upper Midwest. By Sunday into early next week, the focus of precipitation will shift eastward into the Midwest and Ohio Valley, with rain transitioning to a wintry mix in some locations. High pressure will build into the Plains behind the system, bringing drier but colder conditions.

Temperature Anomalies:

-Days 1-3: Above normal temperatures across much of the region initially, particularly in the Plains, with readings 3-6 degrees above normal. Cooler conditions will develop in the Northern Plains by day 3.

-Days 4-6: A significant temperature drop will occur as cold air pushes southward, with below normal temperatures spreading across the Midwest and Central Plains, potentially 6-10 degrees below normal in some areas.

-Days 7-10: Temperatures will moderate somewhat in the Plains but remain below normal across portions of the Midwest and Ohio Valley before gradually warming toward the end of the period.

WEST:  
The Western United States will experience generally quieter weather compared to the eastern two-thirds of the country. High pressure will dominate across much of the Southwest and Great Basin, while areas of low pressure affect the Pacific Northwest and Northern Rockies. Mixed precipitation will occur across portions of the Pacific Northwest and Northern Rockies, with snow at higher elevations. By the weekend, precipitation chances will diminish across much of the region as high pressure strengthens. However, another system may approach the Pacific Northwest by early next week, bringing renewed chances for precipitation to that region. The Southwest will remain largely dry throughout the period.

Temperature Anomalies:

-Days 1-3: Above normal temperatures across much of the region, particularly in the Southwest and Great Basin where readings will be 3-6 degrees above normal.

-Days 4-6: Continued above normal temperatures across most of the West, with the warmest anomalies (6-10 degrees above normal) focused on the Great Basin, Rockies, and Southwest.

-Days 7-10: Persistent above normal temperatures, especially across the interior West and Rockies, with some areas experiencing temperatures 6-12 degrees above normal.

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