Mostly Dry Conditions Continue

General Overview: SIGNIFICANT HEAVY RAIN AND FLASH FLOODING THREAT ACROSS THE SOUTHWEST THROUGH SATURDAY, WITH MIXED PRECIPITATION INCLUDING FREEZING RAIN POSSIBLE IN THE NORTHEAST. MULTIPLE SYSTEMS WILL BRING RAIN AND SNOW TO THE PACIFIC NORTHWEST AND NORTHERN ROCKIES, WHILE ABOVE NORMAL TEMPERATURES DOMINATE THE CENTRAL PLAINS THROUGH EARLY NEXT WEEK.

EAST: An area of low pressure over the Great Lakes will push a frontal boundary through the region Saturday, bringing rain to much of the Northeast and Mid-Atlantic. The more significant concern is the potential for freezing rain across portions of northern New England, particularly from northeast New York to western Maine, where an occluded front will create favorable conditions for this hazardous precipitation type. By Sunday, precipitation will begin to taper off as high pressure builds in from the south. For the early to middle part of next week, conditions will generally improve across the East as high pressure dominates. Some light rain may develop across portions of the Mid-Atlantic and Southeast by Tuesday into Wednesday as a new frontal system approaches from the west.

Temperature Anomalies:

-Days 1-3: Near normal to slightly below normal temperatures across much of the Northeast, with slightly above normal temperatures developing across the Mid-Atlantic and Southeast.

-Days 4-6: Cooling trend with below normal temperatures spreading across the Northeast and Mid-Atlantic, while the Southeast remains slightly above normal.

-Days 7-10: Gradual warming to near normal or slightly above normal across most of the region by the end of the period.

CENTRAL: The Central Plains and Midwest will experience generally quiet weather initially, with high pressure dominating through the weekend. By Monday, a developing low pressure system in the Southern Plains will begin to bring precipitation to portions of Oklahoma and Texas, with rain spreading northeastward into the Midwest by Tuesday. Some thunderstorm activity is possible across portions of the Southern Plains. The most notable feature for the Central region will be the persistent above normal temperatures, particularly across the Central and Southern Plains. This warm pattern will gradually shift eastward through the period.

Temperature Anomalies:

-Days 1-3: Significantly above normal temperatures across the entire Central region, with anomalies of 6-12°F above normal, particularly in the Central Plains and Upper Midwest.

-Days 4-6: Continued above normal temperatures focused on the Southern Plains, with gradual moderation elsewhere.

-Days 7-10: Cooling to near normal temperatures across most of the region by the end of the period.

WEST: The Western U.S. faces the most active weather pattern over the next several days. A significant area of low pressure off the California coast will bring heavy rain and potential flash flooding to portions of Southern California and the Southwest through Saturday. This system will produce heavy rain with flash flooding possible across Arizona, southern Nevada, and portions of southern California.  Multiple low pressure systems will affect the Pacific Northwest and Northern Rockies, bringing periods of rain and mountain snow through the week. By Sunday and Monday, precipitation will spread further inland across the Intermountain West, with mixed precipitation types including snow at higher elevations. Unsettled conditions will likely continue across the Pacific Northwest and California through to the middle of the week as another area of low-pressure approaches and impacts the western coast.

Temperature Anomalies:

-Days 1-3: Above normal temperatures across much of the West, particularly the Rockies and Great Basin.

-Days 4-6: Continued above normal temperatures across the Southwest and Rockies, with near normal temperatures elsewhere.

-Days 7-10: Gradual cooling to near normal temperatures across most of the region.

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