Average Temperatures Likely

General Overview: ACTIVE WEATHER PATTERN ACROSS THE NATION WITH MULTIPLE SYSTEMS BRINGING PRECIPITATION TO THE PACIFIC NORTHWEST, NORTHERN ROCKIES, AND GREAT LAKES REGIONS. MIXED PRECIPITATION AND POSSIBLE SNOW EXPECTED ACROSS PORTIONS OF THE NORTHERN TIER. ABOVE NORMAL TEMPERATURES WILL DOMINATE THE WESTERN HALF OF THE COUNTRY WHILE COOLER CONDITIONS DEVELOP IN THE EAST BY LATE WEEK.

EAST:  
A low pressure system will move into the Northeast by midweek, bringing rain to much of the region. Areas across northern New England and the Great Lakes may experience mixed precipitation as colder air filters in behind the system, favoring higher elevations. By Wednesday evening, precipitation will spread across the Northeast with rain likely for most areas, though some mixed precipitation is possible in higher elevations. Breezy conditions are likely throughout this period. As we move into late week, a cold front will sweep through the eastern third of the country, bringing additional rainfall and cooler temperatures. By Friday, a more significant weather system will develop, potentially bringing widespread rain across the Ohio Valley and into the Mid-Atlantic states. Some thunderstorm activity may develop along the Gulf Coast by the weekend. High pressure will build in behind these systems, bringing drier conditions to the Southeast by the weekend, though some coastal showers remain possible.

Temperature Anomalies:

-Days 1-3: Near normal to slightly below normal temperatures across the Southeast, with slightly cooler conditions developing across the Northeast by day 3.

-Days 4-6: Cooling trend continues with below normal temperatures spreading across much of the region, particularly in the Mid-Atlantic and Northeast.

-Days 7-10: Below normal temperatures becoming more pronounced across the entire East, with anomalies of 3-6 degrees below normal, particularly in the Carolinas and southern Appalachians.

CENTRAL:  
A frontal boundary will set up across the Central Plains early in the period, with low pressure systems tracking along this boundary. By Tuesday evening, a low pressure system over Nebraska will bring precipitation to portions of the Upper Midwest. As the week progresses, this system will move eastward, bringing rain to the Great Lakes region. By midweek, another system will develop in the Central Plains, potentially bringing rain and some thunderstorms to portions of the Mississippi Valley. As colder air filters in from the north, some mixed precipitation or snow may develop across the northern Plains and Upper Midwest. By the weekend, a new frontal boundary will push through the region, bringing additional precipitation chances and cooler temperatures to the northern portions of the Central region while warmer air remains in place across the southern Plains.

Temperature Anomalies:

-Days 1-3: Above normal temperatures across much of the Plains, particularly in the Central and Northern Plains where anomalies of 4-8 degrees above normal are expected.

-Days 4-6: Continued above normal temperatures across the Plains, gradually moderating by day 6 as cooler air begins to filter in from the north.

-Days 7-10: Temperature pattern shifts with below normal temperatures developing across the Upper Midwest and Great Lakes, while above normal conditions persist in the Southern Plains.

WEST:  
An active pattern will continue across the Pacific Northwest and Northern Rockies with multiple systems bringing precipitation to these regions. Rain and higher elevation snow will affect the Cascades and Northern Rockies through midweek. The Pacific Northwest coast will see periods of rain and possibly some thunderstorms. By Wednesday, a new system will approach the West Coast, bringing additional precipitation to the Pacific Northwest and eventually spreading inland to affect the Northern Rockies. Mixed precipitation and snow are likely at higher elevations across Idaho, Montana, and Wyoming. The Southwest will remain largely dry with high pressure dominating, though some precipitation may reach the northern portions of the Great Basin by late week. California will see mostly dry conditions with some coastal clouds and fog possible.

Temperature Anomalies:

-Days 1-3: Significantly above normal temperatures across the Southwest and Great Basin, with anomalies of 6-10 degrees above normal in parts of Nevada, Utah, and Colorado.

-Days 4-6: Continued above normal temperatures across most of the West, particularly in the interior Southwest and Rockies.

-Days 7-10: Above normal temperatures persist across much of the West, especially in the Rocky Mountain states, with anomalies of 4-8 degrees above normal.

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