Aikyam-Lab/Synoptic-Bench huggingface dataset:
849 PM CST Thu Jan 2 2025 Mid-level clouds across the region should help keep temperatures above freezing tonight, but a cold front will result in cooler conditions than we saw today on Friday. Expect morning lows in the low to middle 30s and highs tomorrow in the low 40s to low 50s.
548 PM CST Thu Jan 2 2025 The short term begins with calm and dry conditions as a dry cold front moves across the state tonight.
Still no mention of PoPs to warrant weather for us, but non zero numbers continue over deep east TX will edge into LA ahead of this cold front.
A warm front is moving into the area bringing light to occasionally moderate rain along and west of the Cascades and western Siskiyou County. This will continue into this evening, then precipitation rates will increase later tonight as a cold front approaches the coast. Snow levels will remain above 8000 feet through tonight, then lowering during the day Friday as the cold front passes through and colder air aloft moves overhead. The front will also bring gusty winds in the Shasta Valley near Weed and near and at the ridges east of the Cascades late tonight into Friday morning. The same applies near and at the ridges east of the Cascades. Showers will continue through Friday night as an upper trough moves overhead.
604 PM EST Thu Jan 2 2025 (Through Friday) Seasonably cool high pressure will remain in place across the Deep South overnight with a broad trough in place over the eastern half of the CONUS. Expect another chilly night with temperatures falling into the lower to mid 30s. A bit of moderation is expected on Friday as a dry reinforcing front crosses the area during the afternoon, with temperatures reaching the lower to mid 60s.
No change to the existing forecast or reasoning, as high clouds continue to stream across the state this evening embedded within W/SW flow aloft with broad troughing over the E U. High pressure has settled in over the region behind the last cold front that moved across the area. With the high pressure centered just to our northwest, light north-northeasterly winds have been seen at the surface. The lower and mid levels remain dry, with more moisture located in the upper levels. An upper level short wave will pass to the north of the forecast area tomorrow, dragging a rather dry cold front across the state on Friday night.
343 PM PST Thu Jan 2 2025 A low pressure system bringing moderate mountain snow and valley rain will move in Friday.
205 PM MST Thu Jan 2 2025 - Warmer than normal temperatures and dry conditions are expected for Friday.
As expected, temperatures have warmed quickly into the 40s across the lower Snake Plain and into the Magic Valley which is helping to melt some of our snowfall from yesterday. Temperatures will likely remain above freezing overnight in these areas and throughout the day tomorrow once again helping to get rid of the snow. Even our higher terrain areas will see daytime highs into the upper 30s and 40s tomorrow which will keep impacts from this upcoming system limited to the higher terrain and around Island Park. Island Park is progged to see around 4-6 inches which is on the lower end of advisory level criteria so decided to forego any advisory for this area.
434 PM MST Thu Jan 2 2025 - Warmer than normal temperatures and dry conditions are expected for Friday.
- Bands of Lake Effect Tonight into Friday A short wave trough will bring with it positive vorticity advection and a cold front that will result in falling 850 mb temperatures and bands of lake effect snow for Friday.
1138 PM CST Thu Jan 2 2025 Clear skies and calm conditions are expected over the ArkLaMiss region as high pressure remains in place. A few mid/high-lvl clouds may filter in during the overnight period, with temps ranging in the 30s to the lower 40s in the southern portion of the area. Conditions haven't changed much since this morning with High pressure still place. Models show some light rain moving into the far southern tier of zones as the low moved inland late tonight.
1022 PM MST Thu Jan 2 2025 - Warmer than normal temperatures and dry conditions are expected for Friday.
Persistent troughing and associated moist cyclonic flow will continue through the next couple days, bringing almost constant upslope snow showers. Flow remains unblocked for the immediate future so the highest accumulations look to occur around the summits and slightly downwind on the eastern sides.
324 AM EST Fri Jan 3 2025 Low pressure north of the area will continue gusty winds today with occasional snow showers in the mountains. Winds will slowly relax through the weekend as the low pressure system weakens with a colder airmass moving into the region. Vertically stacked low pressure system north of the area near the St Lawrence River bring another day of gusty west winds and chances for snow showers in the mountains.
With warm-frontal pcpn also coming in from the Pacific this evening the coldest valleys in eastern Oregon will have light freezing rain but plain rain later as temps rise slowly through the night.
A cold front will push down the Florida peninsula today.
125 AM EST Fri Jan 3 2025 Low pressure will slowly drift northward in the Maritimes through tonight.
1117 PM CST Thu Jan 2 2025 Mid-level clouds across the region should help keep temperatures above freezing tonight, but a cold front will result in cooler conditions than we saw today on Friday. Expect morning lows in the low to middle 30s and highs tomorrow in the low 40s to low 50s.
Plentiful cirrus was streaming overhead this dry evening in the Florida Keys, with temperatures in the lower 70s, dewpoints in the lower to mid 60s, and northeast breezes near 10 mph. Overnight, the main weather event so to speak is the nocturnal cool air density surge off the Everglades, with temperatures ranging from the upper 50s there to the mid 60s in the Upper Keys and perhaps soem cooler interior locations of the larger islands. A reinforcing cold front is expected heading into this weekend.
Long range guidance hinting that upper level ridging may start to build in by the following weekend, but not much agreement in the GEFS and EPS members on this, evidenced in latest WPC clusters. Speaking of which - trends with the low pressure system still on track to move eastward from the southern plains to across the OH River Valley by Sun night. Latest determinist runs of the GFS and EC look a bit more south with the low center compared to previous runs with only a handful of their ensemble members brushing southern portion of the local area with snow chances (approx 10%).
Clear skies and calm conditions are expected over the ArkLaMiss region as high pressure remains in place. A few mid/high-lvl clouds may filter in during the overnight period, with temps ranging in the 30s to the lower 40s in the southern portion of the area. Conditions haven't changed much since this morning with High pressure still place. Models show some light rain moving into the far southern tier of zones as the low moved inland late tonight.
1139 PM CST Thu Jan 2 2025 The short term begins with calm and dry conditions as a dry cold front moves across the state tonight.
Tonight we will see the winds drop off and the lows plummet into the low to mid 20s in the north and 20s to near 30 in the south. High pressure will build on Saturday and slightly cooler air.
This is part of an atmospheric river that is moving through with a cold front that will follow later today. This cold front will sharply lower snow levels back to around 3500 feet by this afternoon and evening; providing some moderate snows across portions of the southern Oregon Cascades along and north of Highway 140 and Marble Mountains near Etna Summit. The third bit of hazardous conditions occurring today will be winds from the cold front.
522 AM CST Fri Jan 3 2025 (Today through Saturday) An inverted trough east of the coast will continue to move away from the area today pulling any lingering precip with it. We will keep the low clouds throughout the day in the eastern half of the area, but could see partial clearing west this afternoon. As the trough moves out, flow will become more southeasterly by Saturday. This flow along with mid-level ridging shifting across the area will allow for partial sunshine tomorrow.
850 MB temps advertised to be -17 to -18 C on Saturday, supportive of highs in the low to mid 20s.
There is some light freezing rain mixed in running roughly along highway 20 across the Snake Plain. Indications are that this freezing rain shouldn't last more than an hour or so and not be overly impactful. Our next system arrives late tonight in the form of a cold front. Winds will pick up behind the front with gusts to 40 mph likely across the eastern Magic Valley, South Hills and into the lower Snake Plain.
- Late tonight into Saturday a wintry mix possible during the day as a warm layer of air aloft will make freezing drizzle possible across a large portion of our area.
416 AM CST Fri Jan 3 2025 - Widespread Fog and Freezing Fog This Morning - Wintry weather starting late Saturday morning. Areas most at risk for freezing drizzle are along and east of highway 83 and north of highway 54. - Increasing confidence of freezing rain followed by accumulating snowfall in central Kansas Saturday night.
231 AM MST Fri Jan 3 2025 Well-above normal temperatures are expected today with highs across the lower deserts topping out in the mid to upper 70s. Cooler temperatures are expected over the weekend as a weather system passes to the north.
(Today through Saturday) An inverted trough east of the coast will continue to move away from the area today pulling any lingering precip with it. We will keep the low clouds throughout the day in the eastern half of the area, but could see partial clearing west this afternoon. As the trough moves out, flow will become more southeasterly by Saturday. This flow along with mid-level ridging shifting across the area will allow for partial sunshine tomorrow.
Slightly warmer readings are expected near Lake Michigan.
Well-above normal temperatures are expected today with highs across the lower deserts topping out in the mid to upper 70s. Cooler temperatures are expected over the weekend as a weather system passes to the north.
A period of heavy rain sweeps over the area this morning as cold front moves through.
A cold front is expected to move through the area leaving northerly winds in its path.
536 AM CST Fri Jan 3 2025 - Widespread Fog and Freezing Fog This Morning - Wintry weather starting late Saturday morning. Areas most at risk for freezing drizzle are along and east of highway 83 and north of highway 54. - Increasing confidence of freezing rain followed by accumulating snowfall in central Kansas Saturday night.
For areas further northeast of this line, the arctic high pressure will keep the snow away from the NE corner of the state, but will allow for wind chill values to drop to 25 to 35 below zero.
Overview: The latest water vapor satellite imagery and 500mb heights showed a broad trough over the eastern third of the U. with a ridge over the Rockies and a potent area of closed low pressure moving onto the West Coast.
Warm front is north of the area this morning, although there is some light precipitation across the far northern areas from Baker County into the West Central ID Mountains that will persist through this afternoon. Snow levels there are now at least 7000 feet and will remain high until a cold front moves through late today. The remainder of SE Oregon and SW Idaho will be dry until the cold front brings another round of precipitation and falling snow levels tonight. Showers increasing Friday evening with cold front.
1123 AM CST Fri Jan 3 2025 - Widespread Fog and Freezing Fog This Morning - Wintry weather starting late Saturday morning. Areas most at risk for freezing drizzle are along and east of highway 83 and north of highway 54. - Increasing confidence of freezing rain followed by accumulating snowfall in central Kansas Saturday night.
Temperatures warmed up into the mid 70s with dew points holding in the lower 60s. Meanwhile, a reinforcing, dry cold front is marching southward across the Florida Peninsula once again. Lucie where dew points south of this line are in the lower to mid 50s, while mid 30s to near 40 north of this line. The cold front is being driven by a broad and expansive high diving southeast across the eastern third of the U. As the high retreats further to the east our gradient will collapse and subsequently our winds.
(Through Saturday) The passage of a cold front this afternoon is aiding in keeping winds up a bit/gusty, thus ushering in a reinforcing shot of cool air. Wind speeds will diminish shortly after sunset becoming light and variable, with overnight temps dipping into the lower to middle 30s inland, and middle to upper 30s near the coast. Tomorrow, sunny skies will prevail for most of the day, though daytime highs will only reach the middle to upper 50s to lower 60s as a result of the cooler airmass in place.
1122 AM CST Fri Jan 3 2025 (Today through Saturday) An inverted trough east of the coast will continue to move away from the area today pulling any lingering precip with it. We will keep the low clouds throughout the day in the eastern half of the area, but could see partial clearing west this afternoon. As the trough moves out, flow will become more southeasterly by Saturday. This flow along with mid-level ridging shifting across the area will allow for partial sunshine tomorrow.
An upper trough passing over the Rocky Mountains Saturday morning will dive southeastward, resulting in an upper closed low pressure system developing over the southern Great Plains by late Saturday night. With moisture returning on the backside of the ridge along with low-level isentropic lift, we expect a 20-30% chance of rain showers to develop after midnight west of the Alabama River.
109 PM EST Fri Jan 3 2025 A dry cold front will bring breezy conditions this afternoon and a reinforcing shot of colder air for the weekend.
The warm front from this morning has continued its trek northward and taken most of the moisture with it, but don't worry, the cold front with this system will come barreling in tonight. This will bring some more precipitation with it, cooler temperatures, and some wind, too. Wind gusts along and just behind the cold front will be strongest in parts of the South Hills and eastern Magic Valley with gusts of 35 to 40 mph and isolated gusts around 45 mph. Temperatures will generally be running 5 to 10 degrees cooler with highs in the low to mid 30s for most.
A cold front to the north will continue to move towards the FL peninsula, passing over the state later this evening. Cooler, drier air will filter in behind the front tonight and Saturday night.
The overall pattern currently has a ridge across the desert southwest and a strong upper low off the northern Oregon Coast. The upper low will move rapidly southeast into and across the northern Great Basin on Saturday, pushing the ridge well east of our area into the southern plains and mid Mississippi Valley.
(Tonight) Tranquil weather across the Tennessee Valley this afternoon and evening with high pressure at the surface still in control.
A weak cold front was moved through the region with slightly colder and drier air behind it.
There are still a couple of upper 50s in our far north and all dew points are similar in the lower 40s for most. Some drier 30 Tds will work in east of I-49 and thats where our cooler air temps will be by daybreak in the mid to upper 30s with a touch of frost possible.
A broad trough over the Northeastern US will keep the Northern Plains in northwesterly flow aloft.
408 PM EST Fri Jan 3 2025 Low pressure slowly lifts north tonight.
The Winter Weather Advisory has been cancelled, but on and off light snow showers in the northern half of the county will continue Saturday morning until the high pressure and drier air moves into the northern Midwest.
958 PM EST Fri Jan 3 2025 Low pressure slowly lifts north tonight.
A low pressure system will track north of the region bringing showers for late Saturday night.
529 PM CST Fri Jan 3 2025 (Tonight) Tranquil weather across the Tennessee Valley this afternoon and evening with high pressure at the surface still in control.
606 PM EST Fri Jan 3 2025 (Through Saturday) The passage of a cold front this afternoon is aiding in keeping winds up a bit/gusty, thus ushering in a reinforcing shot of cool air. Wind speeds will diminish shortly after sunset becoming light and variable, with overnight temps dipping into the lower to middle 30s inland, and middle to upper 30s near the coast. Tomorrow, sunny skies will prevail for most of the day, though daytime highs will only reach the middle to upper 50s to lower 60s as a result of the cooler airmass in place.
300 PM PST Fri Jan 3 2025 A low pressure system will continue to bring wintry precipitation tonight into tomorrow.
into the northern Gulf trailing a dry cold front that will push across the area overnight. A cold front to the north will continue to move towards the FL peninsula, passing over the state later this evening. Cooler, drier air will filter in behind the front tonight and Saturday night.
Upper-level ridging is building in the from the west as a dry cold front propagates through Central Florida, reinforcing the cool and dry airmass that has been in place.
West winds look strong enough (5-10 mph) to hinder fog formation in the valleys toward morning except in the Lower Treasure Valley where fog is possible.
- Today a weather system will move into the area bringing snow to the west first and then spreading eastward, with a cold front pushing down from the north. - Wind will increase in response to the cold front, with strong wind across Sweetwater County this afternoon/evening and east of the Continental Divide behind the cold front this afternoon/evening. A moderately strong upper-low/trough will push through the area today. Model guidance shows the jet stream much stronger on the west side of the trough, which will direct the system to the southeast over time today into tonight, which will limit the window of good lift for snow to about 12 hours from Saturday afternoon through Saturday evening.
Daily breezes and cooler than average temperatures will keep conditions feeling brisk for most locations while wind chills will be quite cold for those with plans for mountain recreation. Northwesterly flow upslope snow showers for the higher terrain and more periodic light snow over valleys. Several inches over the next 36 hours will be possible along slopes of the Adirondacks and northern Greens especially as a trough moves across our area through tonight.
1242 AM EST Sat Jan 4 2025 Low pressure slowly lifts north tonight.
A strong cold front arrives Sunday. (This evening through Saturday) Dry conditions will prevail through Saturday, along with warmer temperatures.
Quiet conditions remain over the area through the day Saturday, thanks to a high pressure ridge axis nosing into our area from south- central Canada. The culprit for this winter storm is a fairly compact, but potent, upper-level trough, which will make its way eastward tonight through the day Saturday. NBM probabilities of 4 inches of total snowfall for the event are now around 20 to 50%, which is a 20% decrease from 24 hours ago, so this is quite a change in the forecast! Even the new ECMWF EFI shows a southern shift of the highest values by around 80 miles.
1242 AM EST Sat Jan 4 2025 (Through Saturday) The passage of a cold front this afternoon is aiding in keeping winds up a bit/gusty, thus ushering in a reinforcing shot of cool air. Wind speeds will diminish shortly after sunset becoming light and variable, with overnight temps dipping into the lower to middle 30s inland, and middle to upper 30s near the coast. Tomorrow, sunny skies will prevail for most of the day, though daytime highs will only reach the middle to upper 50s to lower 60s as a result of the cooler airmass in place.
This will promote a northerly component to the wind flow pattern today which will enable cooler temperatures through Sunday. As the larger area of high pressure slides east ahead of the next low pressure system, the wind flow will become increasing northeasterly to easterly on Sunday.
As the morning wears on, the upper trough over Quebec will lift north which will allow warmer and drier air to advect north toward the lake. Mostly cloudy skies will continue however and highs will only reach the lower 20s.
The main upper trough will remain well to our south, traveling from CO and WY out into the Central Plains.
342 AM EST Sat Jan 4 2025 Arctic high pressure will continue to influence the region through tonight and Sunday.
Mid-level dry air from Canadian high pressure then digs down into the upper Midwest on Saturday, effectively shutting off the lake effect machine and allowing for windows of clearing across the forecast area tomorrow afternoon. Pseudo omega block paired with a blocking ridge over Greenland will place us under persistent northwesterly flow, facilitating the return of arctic air through tomorrow.
A strong cold front is moving through east Idaho this morning. Some of the lower valleys may see a brief period of rain before the precipitation changes over to snow. A second round of snow will arrive for east Idaho this afternoon with the upper level low.
The current weather system pushes out of the state with some lingering showers possible over northeastern Nevada in the morning, then drying out to calmer conditions with cooler temperatures in the 30s to 40s. By the afternoon, chances dissipate to calmer weather conditions with the cooler air behind this front keeping temperatures cooler to near normals with highs in the 30s to 40s and overnight lows in the teens to 20s. Sunday, quiet weather conditions continue during the day with temperatures expected to slightly be warmer in the 40s across the region along with light winds.
Highest amounts are along the Highway 36 corridor. - A tenth to four tenths of an inch of ice likely (>90% chance) along and south of the Highway 50 corridor. - Nearly an inch of sleet possible along the I-70 corridor, along with snow and freezing rain. It looks like freezing drizzle/ freezing rain and possibly snow, will spread northeastward between 18Z and 20-21Z before encompassing the entire forecast area between 00Z and 06Z.
WEATHER PATTERN OVERVIEW: NE Montana will impacted today by a winter storm to the SW and bitter cold arctic high pressure to the NE. For the NE half of the forecast area, the arctic high pressure will keep the weather mainly dry.
Gusty northwesterly winds continue along the North Shore this morning, as cold air flows lee of the higher terrain parallel to the shoreline.
There is a wintry mix in valleys from I-90 southward but snow levels will be dropping this morning behind a weak cold front. Overall, precipitation will diminish today, although with a weak trough overhead scattered to numerous showers will persist. There is a 15 percent chance for freezing drizzle in that region.
Updated at 258 AM CST Sat Jan 4 2025 - Low clouds and patchy dense fog will continue through this morning, with warmer and breezy conditions this afternoon.
A dry cold front will move through on Saturday with gusty winds and cooler temperatures.
526 AM CST Sat Jan 4 2025 Cold conditions will persist on Saturday as high pressure remains in place. A quick-moving low pressure system will move into the Mid-South on Sunday and warm temperatures into the 50s and 60s briefly before a cold front sweeps through. A strong cold front will move through Sunday night and may change rain over to snow showers and freezing drizzle across northern portions of the Mid-South.
All that said, latest run of the total snowfall still brings a general 2 to 5 inches across central SD, but with still a rather sharp cutoff in amounts near Mobridge and Campbell/Walworth counties.
Cold conditions will persist on Saturday as high pressure remains in place. A quick-moving low pressure system will move into the Mid-South on Sunday and warm temperatures into the 50s and 60s briefly before a cold front sweeps through. A strong cold front will move through Sunday night and may change rain over to snow showers and freezing drizzle across northern portions of the Mid-South.