Moderate to Heavy Rainfall and High Elevation Snow

General Overview: ACTIVE WEATHER PATTERN ACROSS THE NATION WITH HEAVY RAIN AND FLASH FLOODING POTENTIAL IN SOUTHERN CALIFORNIA, FREEZING RAIN ACROSS THE PACIFIC NORTHWEST, AND RAIN/THUNDERSTORMS DEVELOPING ACROSS THE GULF COAST AND SOUTHEAST. TEMPERATURES WILL REMAIN WELL BELOW NORMAL ACROSS THE NORTHEAST AND GREAT LAKES WHILE THE WESTERN AND SOUTHERN REGIONS EXPERIENCE SIGNIFICANTLY ABOVE NORMAL TEMPERATURES.

EAST:
A cold front will move through the Northeast and Mid-Atlantic during the first part of the period, bringing colder air to the region. High pressure will dominate much of the eastern seaboard initially, but by the weekend, a developing low pressure system will move up the East Coast. This system will bring rain to portions of the Southeast and Mid-Atlantic, with some areas potentially seeing thunderstorms. The Carolinas and Virginia could experience periods of moderate rainfall as the system progresses northward. By Saturday into Sunday, precipitation will spread along the coastal regions with rain extending from the Southeast into the Mid-Atlantic states. The Great Lakes region will see some light snow as colder air remains entrenched across the northern tier.

Temperature Anomalies:
-Days 1-3: Significantly below normal temperatures across the Northeast and Great Lakes, with anomalies of 6-12 degrees below normal. Florida will experience slightly below normal temperatures.
-Days 4-6: Moderating temperatures with near normal conditions returning to much of the region, though the Northeast will remain slightly cooler than average.
-Days 7-10: Warming trend continues with temperatures climbing to near or slightly above normal for most areas, particularly across the interior Southeast and Mid-Atlantic.

CENTRAL:
The Central Plains will experience relatively quiet weather initially, with high pressure dominating. By Friday, a frontal boundary will push through the region, bringing a chance of precipitation to portions of the Central and Southern Plains. A low pressure system will develop over Texas and move northeastward, bringing rain to the lower Mississippi Valley and parts of the South Central states. Some thunderstorm activity is possible across portions of Louisiana, Mississippi, and Alabama. As the weekend progresses, the precipitation will shift eastward, leaving much of the Central Plains dry but with fluctuating temperatures as air masses battle across the region.

Temperature Anomalies:
-Days 1-3: Near normal temperatures across the northern Plains, with above normal temperatures (6-12 degrees) across the Southern Plains and Texas.
-Days 4-6: Warming trend continues with above normal temperatures expanding northward, particularly across the Central and Southern Plains with anomalies of 6-12 degrees above normal.
-Days 7-10: Continued above normal temperatures across most of the region, with the warmest anomalies (6-10 degrees above normal) focused on the Mississippi Valley and South Central states.

WEST:
An active weather pattern will impact the Western states with multiple systems bringing significant precipitation. The Pacific Northwest will experience freezing rain, creating hazardous conditions across portions of Washington, Oregon, and Idaho. Heavy rain and potential flash flooding will affect Southern California, particularly in coastal areas. Multiple high pressure centers across the Intermountain West will bring dry conditions to those areas, but precipitation will continue along the West Coast as systems move inland. By the weekend, another system will bring additional rain and mountain snow to the Pacific Northwest and Northern California. The Southwest will remain mostly dry but will experience above normal temperatures throughout the period.

Temperature Anomalies:
-Days 1-3: Significantly above normal temperatures across the Southwest, Great Basin, and Rockies with anomalies of 6-12 degrees above normal. Near normal temperatures along the immediate Pacific Coast.
-Days 4-6: Continued above normal temperatures across most of the West, with the warmest anomalies (8-12 degrees above normal) focused on the Rockies and Great Basin.
-Days 7-10: Slight moderation in temperature anomalies but still remaining above normal for most areas, particularly across the interior West.