Scattered Rain/Snow Showers Northwest

General Overview: ACTIVE WEATHER PATTERN ACROSS THE CENTRAL US WITH SEVERE THUNDERSTORMS AND HEAVY RAIN POSSIBLE SATURDAY ACROSS ARKANSAS, LOUISIANA, AND MISSISSIPPI. MIXED PRECIPITATION EXPECTED IN THE PACIFIC NORTHWEST AND NORTHERN ROCKIES. RAIN AND THUNDERSTORMS WILL SPREAD ACROSS THE EASTERN SEABOARD BY SUNDAY.

EAST:
A cold front pushing eastward will bring rain and thunderstorms to portions of the Great Lakes and Ohio Valley today. As this system progresses, widespread rain will develop across much of the Eastern Seaboard by Sunday. The front will continue pushing offshore by Monday, with high pressure building in behind it. Some rain showers may linger along coastal areas of the Southeast through early next week. No severe weather is expected in the eastern regions, though periods of moderate rainfall are possible, particularly Sunday into Monday.

Temperature Anomalies:
-Days 1-3: Generally near normal temperatures across most of the Northeast and Mid-Atlantic, with slightly above normal temperatures (3-6°F) developing across portions of the Great Lakes region.
-Days 4-6: Near normal temperatures for most areas, with slightly above normal readings continuing across northern New England and New York.
-Days 7-10: Temperatures trending near normal for most of the East, with no significant warm or cold anomalies expected.

CENTRAL:
A dynamic weather pattern will affect the Central US over the next several days. A significant weather system will intensify today, bringing a threat of severe thunderstorms and heavy rainfall to portions of Arkansas, Louisiana, and eastern Texas. This area has been highlighted for potential flash flooding and severe weather, including the possibility of strong thunderstorms. The system will progress eastward on Sunday, with precipitation continuing across the Mississippi Valley and Great Lakes. By Monday, a new frontal boundary will begin organizing across the Northern Plains, bringing additional precipitation chances to the Upper Midwest. High pressure will briefly build in midweek before another system approaches.

Temperature Anomalies:
-Days 1-3: Significantly above normal temperatures (6-12°F) across much of the Midwest and Central Plains, particularly focused on Iowa, Missouri, Illinois, and surrounding states.
-Days 4-6: Moderating temperatures with near normal readings for most areas, though some above normal temperatures will persist in parts of Texas and Oklahoma.
-Days 7-10: Warming trend developing across the Plains states with above normal temperatures (4-8°F) building from Texas northward through the Dakotas.

WEST:
A series of weather systems will affect the Pacific Northwest and Northern Rockies over the next several days. Mixed precipitation, including rain and snow, is expected across Washington, Oregon, Idaho, and western Montana. Several low pressure systems will move through the region, bringing periods of precipitation. The Southwest will remain generally dry under high pressure, though some isolated showers may develop in Arizona. By early next week, a new system will approach the Pacific Northwest, bringing another round of precipitation to the region. The precipitation in the Northwest will include mountain snow at higher elevations, particularly in the Cascades and Northern Rockies.

Temperature Anomalies:
-Days 1-3: Near normal temperatures for most areas, with slightly below normal readings in parts of the Pacific Northwest where precipitation is occurring.
-Days 4-6: Warming trend developing across the interior West with above normal temperatures (2-5°F) spreading across the Rockies and Great Basin.
-Days 7-10: Above normal temperatures (4-8°F) becoming established across much of the interior West and Northern Rockies, with near normal temperatures along the immediate Pacific coast.

TROPICAL: 
No systems are expected to have any impacts on the US in the next 7 days, though some areas could see further development.

ATLANTIC BASIN: A tropical wave over the central tropical Atlantic looks to undergo slow development over the next several days as it continues to move westward. Formation chances remain low through 48 hours at 10% and low through 7 days at 30%.