Valley Rain and Mountain Snow North
A Pacific system will bring widespread valley rain and mountain snow to northern areas, while the Desert Southwest remains mostly dry.
General Overview: ACTIVE WEATHER PATTERN BRINGS HEAVY PRECIPITATION AND SEVERE STORM THREATS TO MUCH OF THE COUNTRY. FREEZING RAIN AND HEAVY SNOW RISKS IN THE NORTH, WITH SEVERE THUNDERSTORMS POSSIBLE IN THE CENTRAL PLAINS AND MIDWEST.
EAST: A complex weather system will bring a variety of precipitation types to the Eastern U.S. over the next few days. Rain and thunderstorms are expected across much of the Southeast and Mid-Atlantic, with some storms potentially becoming severe. Further north, a wintry mix of snow, sleet, and freezing rain is likely across parts of the far Northeast. Snow is possible in far northern New England. As the system moves through, colder air will filter in behind it, potentially changing rain to snow in some areas.
Temperature Anomalies:
-Days 1-3: Well above average temperatures, especially in the Mid-Atlantic and Northeast with anomalies of 6-12°F above normal.
-Days 4-6: Cooling trend begins, with temperatures falling to near normal or slightly below by day 6.
-Days 7-10: Generally near normal temperatures, with some slightly below normal readings possible in the Northeast.
CENTRAL: An active weather pattern will bring multiple rounds of precipitation to the Central U.S. Severe thunderstorms are possible across parts of the Southern Plains and low-mid Mississippi Valley, with a risk of tornadoes, large hail, and damaging winds. Further north, heavy snow is likely across portions of the Northern Plains and Upper Midwest. A wintry mix of snow, sleet, and freezing rain is expected in between these areas, potentially leading to hazardous travel conditions.
Temperature Anomalies:
-Days 1-3: Well above average temperatures for most areas, with anomalies of 6-12°F above normal in the Plains and Midwest.
-Days 4-6: Cooling trend begins, with temperatures falling to near or slightly below normal by day 6.
-Days 7-10: Generally near normal temperatures, with some slightly above normal readings possible in the Northern Plains.
WEST: A Pacific storm system will bring periods of rain and mountain snow to much of the Western U.S today. Heavy snow is likely in the higher elevations of the Cascades, Sierra Nevada, and Rocky Mountains. Rain is expected at lower elevations, with the potential for some locally heavy amounts along the Pacific Northwest coast. Drier conditions are anticipated after today for much of the rest of the period.
Temperature Anomalies:
-Days 1-3: Near to slightly below normal temperatures for most areas.
-Days 4-6: Warming trend begins, with temperatures rising to above normal levels, especially in the interior West.
-Days 7-10: Continued above normal temperatures for most areas, with anomalies of 3-6°F above normal in the Rockies and Great Basin.
TROPICAL: No tropical cyclone activity is expected during the next 7 days.