Overview
There is a low pressure system that is continuing to move through the NE U.S. with a cold front stretched South along the Atlantic coastline. This front is bringing rain and some snow to affected areas. A short-wave (area of low pressure) is over Montana, moving ENE. This low has a warm front stretched SE, through the Dakotas and a cold front stretched SW, back into the Rockies. A ridge of high pressure is extended over the Central & Southern Plains and most of the SE U.S.
Discussion
As the sun was setting this evening, we wrapped up our work week with a beautiful sunset, mostly clear skies and only a few clouds. Temperatures remain well below average and will continue to fall well into the overnight hours, for most of us. The exception to this generalization lies to our SW. A warm front is moving toward the Dakotas. This low pressure system is not very strong at all. Nevertheless, it will assist in bringing temperatures into a more seasonable range. This warm front precedes a broad ridge of high pressure associated with a much warmer air-mass. That means that after Midnight, temps will begin to gradually rise. Warm Air Advection (WAA) will trump overnight cooling and this warmer air-mass will begin to move over the Northern Plains. Overnight lows will be close to what they were this morning. However, low temps will not occur around sunrise for most of the area. Once the warm front begins to affect your area, temps will be on the rise and our weekend will bring with it seasonable conditions (BIS avg 5/25). There will be a chance for some light flurries tonight where & when our warm front moves over the area. Snow chances will be in play again on Sunday, as a cold front (associated with this same low pressure system) moves through the area. Temps will not be affected by this mild cold front. However, we will see the change in winds and dew point (briefly). Throughout the 7day, expect 2 more systems to affect the Dakotas. Like the system this weekend, another (weaker) low pressure system will begin to develop and move through our area Early this week. More cloud cover is expected on Mon & Tue, but little to now precip accumulation is in the forecast. Our next chance for significant snowfall may be on the horizon. Some of the long-range models continue to hint at a larger system moving through the Northern Plains during the later half of next week. As of now, model consensus is pointing to Wednesday PM and Friday for more snow. That is definitely something to keep in mind as many people will be traveling during the days leading up to Christmas & after.
As the sun was setting this evening, we wrapped up our work week with a beautiful sunset, mostly clear skies and only a few clouds. Temperatures remain well below average and will continue to fall well into the overnight hours, for most of us. The exception to this generalization lies to our SW. A warm front is moving toward the Dakotas. This low pressure system is not very strong at all. Nevertheless, it will assist in bringing temperatures into a more seasonable range. This warm front precedes a broad ridge of high pressure associated with a much warmer air-mass. That means that after Midnight, temps will begin to gradually rise. Warm Air Advection (WAA) will trump overnight cooling and this warmer air-mass will begin to move over the Northern Plains. Overnight lows will be close to what they were this morning. However, low temps will not occur around sunrise for most of the area. Once the warm front begins to affect your area, temps will be on the rise and our weekend will bring with it seasonable conditions (BIS avg 5/25). There will be a chance for some light flurries tonight where & when our warm front moves over the area. Snow chances will be in play again on Sunday, as a cold front (associated with this same low pressure system) moves through the area. Temps will not be affected by this mild cold front. However, we will see the change in winds and dew point (briefly). Throughout the 7day, expect 2 more systems to affect the Dakotas. Like the system this weekend, another (weaker) low pressure system will begin to develop and move through our area Early this week. More cloud cover is expected on Mon & Tue, but little to now precip accumulation is in the forecast. Our next chance for significant snowfall may be on the horizon. Some of the long-range models continue to hint at a larger system moving through the Northern Plains during the later half of next week. As of now, model consensus is pointing to Wednesday PM and Friday for more snow. That is definitely something to keep in mind as many people will be traveling during the days leading up to Christmas & after.
Through the rest of tonight & Saturday
Overnight, expect continued clearing and some cooling. A warm front approaching from the SW will begin to affect the area and temps will start to rise (from the SW to the NW) after Midnight. There will be a chance for a few isolated flurries as more clouds accompany the approaching warm front. Nevertheless, overnight minimum wind chill values will be well below zero and even into the negative teens for some. Saturday, expect Mostly cloudy skies with in & out cover and temps in the 20s and closer to the seasonable norm.
Overnight, expect continued clearing and some cooling. A warm front approaching from the SW will begin to affect the area and temps will start to rise (from the SW to the NW) after Midnight. There will be a chance for a few isolated flurries as more clouds accompany the approaching warm front. Nevertheless, overnight minimum wind chill values will be well below zero and even into the negative teens for some. Saturday, expect Mostly cloudy skies with in & out cover and temps in the 20s and closer to the seasonable norm.
7day planner
Temperatures will climb back into a seasonable range this weekend and into the lower 30s as we start the work week. Through the weekend we will be in the warm sector of a passing low pressure system. We will see a few flurries/mix Saturday & Sunday. However snowfall this system will yield little to no accumulation. A second, weak system will move through the area at the start of next week. This system will also not add much, if any, accumulation to our current snow-pack. Toward the end of the work-week a possible third system could move through the area and may affect traveling plans.
TONIGHT...Partly to mostly cloudy skies and cold with a few passing flurries. Lows -6 to 14. NW/SE wind 2-10mph. Chills in the single digits and below zero.
SATURDAY... Partly to mostly cloudy skies with in & out cover and a few isolated flurries/snow early as a warm front moves through the state. Highs 24-33. South/SE wind 2-12mph.Chills in the single digits & teens.
SATURDAY NIGHT... Mostly cloudy skies and cold with the chance for possible flurries. Lows 10-18. South wind 2-10mph becoming light & variable. Chills in the single digits.
SUNDAY...Partly to mostly cloudy skies with some snow as a cold front moves through the area, followed by clearing skies. Highs 22-29. Winds swinging around to the NW 5-15mph. Chills in the single digits & teens.
SUNDAY NIGHT...Fair to partly cloudy skies. Lows in the single digits and teens. NW wind 2-10mph. Chills below zero.
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