Aikyam-Lab/Synoptic-Bench huggingface dataset:
Freezing levels generally in the 5000-6000 foot range this morning rise to near 6500 feet this afternoon. A warm front will bring more widespread light to moderate precipitation late this afternoon/evening with a disturbance crossing the area tonight into Monday morning. With plenty of low-level moisture, we expect the lower conditions to continue in most areas through at least 12z Monday. This lines up well with many of the high res models. Precipitation will gradually increase first over the northwest part ofthe forecast area, then spreading eastward during the mid to late afternoon and evening hours and continue through tonight as another upper trough moves into the area, This will be the last gasp as we'll dry out later Monday through most, if not all of the upcoming week.
Meanwhile, a strong low pressure system is wreaking havoc across the Central Plains and Mid Mississippi Valley this morning. The pressure gradient exerted by this low and our high is maintaining moderate to fresh breezes across most of our waters. Temperatures are steadily rising and already on par or a little warmer than this time yesterday. Key West and Key Largo are currently sitting in the low 70s with upper 60s in between. Moderate breezes will veer from southeast to southwest Monday and Monday night as a high pressure system weakens and moves from the eastern United States to the North Atlantic.
pdf There is some residual freezing or subfreezing temperatures inland areas north of I-10 as of 915 am, and should rise above freezing allowing the warning to expire at 9 am. Lows tonight will be much warmer than last night with southerly flow on tap. High pressure over the region will gradually shift off towards the Atlantic through the afternoon hours. A warm front will move northward from the Panhandle region with some high resolution models pushing the eastern part of this feature toward the western part of the Altamaha River Basin/ Ocmulgee River Basin during the mid evening hours. A cold front will approach from the west tonight and pass through the region on Monday. Much colder temperatures are expected the rest of the week behind the cold front. Winds become southerly as cold front encroaches the region.
A low pressure system will track across the Mid-South tonight bringing showers, thunderstorms and windy conditions. Behind the low pressure system, some wintry precipitation may occur after midnight.
- Below normal temperatures will continue through mid-week, warming back towards normal by the end of the week Issued 159 PM CST Sun Jan 5 2025 Tonight through Monday: As low pressure currently over AR moves across the srn Ohio River Valley tnt, nely boundary layer flow will bring lake effect snow to far ern WI especially from MKE to ENW. Afterward a deeper upper trough will shift south through the Great Lakes and Mid Atlantic States. No accumulating snow is expected with these troughs but cannot rule out flurries. This will occur ahead of a digging and amplifying upper trough in nwly flow aloft.
Earlier this morning an upper level trough was positioned across eastern Colorado and northeastern New Mexico, with a surface and 850 mb low located over or near northwest Oklahoma. As the surface to 850 mb low deepens over northwest Oklahoma in response to the approaching upper level trough, north winds will increase across central and much of southwest Kansas by 12z Sunday. As the upper low tracks east across the Central Plains during the day today, snow will taper off during the late morning and early afternoon. However, areas north and east of Dodge City may see slower warming, with the lower 25th percentile being more representative.
In addition, lift associated with the mid level forcing as the upper low passes to the south will continue to produce precipitation in the vicinity of southern Iowa into the evening. This has led to a realignment of the headline with the southern tier downgraded to a Winter Weather Advisory and completely dropping the headline along the Highway 34 corridor. Winds do remain robust from the north but the blowing snow potential has decreased with the lower amounts although a few patchy areas may still occur in open rural areas.
WV imagery indicates a strong closed upper low transitioning east through the plains of eastern Kansas into Missouri. Near the surface, a strong area of low pressure is edging east across eastern Oklahoma into northwest Arkansas. Lingering areas of light snow and blowing snow will quickly give way to tranquil conditions this evening as the SREF indicates the aforementioned strong closed upper low exiting eastward through the Central Plains tonight, giving way to a more zonal flow aloft across the Western High Plains Monday while much drier air filters southward into western Kansas.
222 PM EST Sun Jan 5 2025 An area of low pressure moving across the central U. As the low continues its trek eastward, an associated surface front will approach the region tonight into tomorrow. This will lead to a milder night tonight and warmer and more humid conditions through Monday before the front brings a broken line of showers and a few thunderstorms during the afternoon. Rain comes to an end by Monday evening, with strong northerly winds bringing much cooler and drier conditions. (18Z TAFS) VFR conditions are expected through tonight, then a cold front will move through the region Monday afternoon, bringing a period of brief impacts to some area terminals. Southeast to south winds today increase to exercise caution levels tonight ahead of an approaching cold front.
Latest upper air analysis depicts the trough slowly meandering east, with much of the energy splitting into a closed low across Kansas, leaving a broad region from the Western Seaboard to the Intermountain West under northwest flow. With the majority of snowfall decreasing throughout the morning hours as the trough axis continuing to push east, went ahead and allowed the Winter Weather Advisories to expire on-time. Although, some isolated light snow will remain possible into the afternoon across the eastern counties in western Nebraska, as well as the higher terrains in southeast Wyoming. Ahead of this system, some clearing in the overnight hours, primarily along and east of the I-25 corridor, that will keep temperatures on the lower side as radiative cooling takes hold.
Temperatures have quickly dropped as usual post sunset (a little faster than forecast), but winds are decreasing quickly where the lowest temperatures are being reported. Temperatures will start to rebound mid week as a ridge builds further eastward increasing geopotential heights across the region.
Brisk winds aloft will see more cirrus and the stratocu should thin out by tomorrow as the upper core of the low lifts away and winds become NW aloft.
557 PM CST Sun Jan 5 2025 A low pressure system will track across the Mid-South tonight bringing showers, thunderstorms and windy conditions. Behind the low pressure system, some wintry precipitation may occur after midnight.
Expect a continued decrease in showers over the region as the warm front continues to push east through the Pacific Northwest. Another low pressure system will arrive tonight, bringing continued rain throughout the region and snow in the Cascades.
Temperatures will start to rebound mid week as a ridge builds further eastward increasing geopotential heights across the region.
A cold front will push south across the area after 18Z bringing a broken line of showers and storms. An area of low pressure moving across the central U. As the low continues its trek eastward, an associated surface front will approach the region tonight into tomorrow. This will lead to a milder night tonight and warmer and more humid conditions through Monday before the front brings a broken line of showers and a few thunderstorms during the afternoon. Rain comes to an end by Monday evening, with strong northerly winds bringing much cooler and drier conditions.
Therefore it appears total snowfall of 2"+ inches will be confined to the far southern tier of counties for this event, with the highest potential for near 4" or more down along the southern border of the outlook area. Monday: High pressure building into the eastern Plains will bring dry but quite cold temperatures, along with diminishing winds. Highs will be in the lower to mid 20s, but probably at least several degrees colder in our southern counties with expected snow cover.
Slightly above average temperatures are expected on Monday ahead of the next cold front that looks to bring a broken line of rain and storms to the area tomorrow afternoon/evening. A cold front will push south across the area after 18Z bringing a broken line of showers and storms.
519 PM CST Sun Jan 5 2025 (Tonight through Monday night) Key Messages: - Freezing temperatures possible each morning - Cold Weather Advisory in effect for the Victoria Crossroads for Monday morning - Gale Warning in effect tonight through noon Monday While it may not seem like it with our mid-80s temperatures today, big changes are on the way tonight. A cold front currently draped across the Hill Country will continue its surge southward into our area. This cold front will bring us the first real cold snap of the winter, with overnight lows tonight in the mid 30s to low 40s across all of the area. While we have seen these overnight temperatures already, high temperatures will only reach into the 50s for Monday--roughly 30 degrees cooler than we are this afternoon.
Satellite image shows an upper trough approaching the Oregon coast. However gusty winds are possible in the exposed areas along the highway 101 and headlands late this afternoon. Precipitation will increase late this afternoon and continue into tonight as the upper trough and surface front move into the area. Most locations will be dry Monday afternoon as the upper trough axis moves south of the area and being replaced with a dry northeasterly flow aloft.
- Very cold mid-week with lows in the teens to near single digits and highs in the low 30s.
Pattern Synopsis/Pattern Forecast: Broad upper level troughing continues to dominate much of northeast NOAM early this morning. Rather impactful winter storm along this trough producing intense thermal gradient working steadily east across the lower Ohio Valley, with yet another cold Canada originated high pressure dropping in behind it into the northern Plains and western Great Lakes. Ohio Valley low pressure will continue to work east as high pressure further builds into the western Great Lakes through tonight. Deep longwave troughing across North America will continue to advect cold air from Canada into the Great Lakes region for the entirety of the forecast period.
A closed upper low spins over Illinois with associated troughing extending southward through the Mississippi River Valley. The surface reflection is a low pressure system over eastern Kentucky with the associated cold front extending southward through TN/GA/AL/MS and into the central Gulf of Mexico.
Remaining accumulations are relatively light, with less than an inch for most places, and up to about 3 inches for the highest mountain elevations through today. This freezing fog will impact travel, with reduced visibilities and possible areas of road ice, especially for bridges. This is likely a result of a trough moving through the area today. With enough moisture, snow chances will accompany this cold front-like feature as it travels southward. This will bring enhanced snow chances, especially for places in favored north flow, like the Owl Creek/Bridger Mountains, the Lander area, and the Casper area.
UPDATE As with earlier trends; coldest temperatures are associated with calm or nearly calm winds and thus lowest wind chills are sub advisory (warmer than -30F) across most of our CWA (mainly -15 to -25). UPDATE Temperatures have quickly dropped as usual post sunset (a little faster than forecast), but winds are decreasing quickly where the lowest temperatures are being reported. Temperatures will start to rebound mid week as a ridge builds further eastward increasing geopotential heights across the region.
Little to no change in the weather for the early part of the week under continued high pressure.
326 AM EST Mon Jan 6 2025 - Light snow near Ludington today - Light snow midweek and weekend - Typical January temperatures - Light snow near Ludington today Low pressure is moving across the Ohio Valley and regional radar shows an expansive precipitation shield associated with it.
Kuroski Issued 245 AM CST Mon Jan 6 2025 Tonight through Sunday: As the low pressure system in the Ohio River Vally continues to move east northeast toward the Mid Atlantic, high pressure in the Northern Plains will ever so slowly move south southeast.
A Pacific upper low moved into Oregon this evening and will move through southern Oregon tonight and then northern Nevada on Monday. Widespread rain and snow are favored near the track of the low center, including most of SE Oregon (south of Baker County) and in SW Idaho south of the Snake Plain. Snow levels of 4500-5500 feet will limit the accumulating snows to the higher elevations where total amounts of 1 to 3 inches (up to 6 inches on the Steens) are expected.
1125 PM CST Sun Jan 5 2025 Quick forecast update as a cold front currently traverses the Mid-South. Really the biggest question overnight will be how much moisture we will see as the low pulls eastward, introducing the chance of some wintry weather to the area. CMA A low pressure system will track across the Mid-South tonight bringing showers, thunderstorms and windy conditions. Behind the low pressure system, some wintry precipitation may occur after midnight.
As with earlier trends; coldest temperatures are associated with calm or nearly calm winds and thus lowest wind chills are sub advisory (warmer than -30F) across most of our CWA (mainly -15 to -25). UPDATE Temperatures have quickly dropped as usual post sunset (a little faster than forecast), but winds are decreasing quickly where the lowest temperatures are being reported. Temperatures will start to rebound mid week as a ridge builds further eastward increasing geopotential heights across the region.
1017 PM CST Sun Jan 5 2025 Quick forecast update as a cold front currently traverses the Mid-South. Really the biggest question overnight will be how much moisture we will see as the low pulls eastward, introducing the chance of some wintry weather to the area. CMA A low pressure system will track across the Mid-South tonight bringing showers, thunderstorms and windy conditions. Behind the low pressure system, some wintry precipitation may occur after midnight.
70 inches), dry air is still present just above the cloud layer in the lower to mid levels limiting any shower activity. Temperatures on land are almost 10 degrees warmer than they were last night ranging near 70 at the moment. As the high slides east, winds will continue to gradually slacken and veer to the southeast to south tomorrow. Daytime temperatures will follow a similar warming trend with highs in the mid to upper 70s, due to the warmer wind directions out of the southeast to south. Moderate breezes will veer from southeast to southwest Monday and Monday night as a high pressure system weakens and moves from the eastern United States to the North Atlantic.
Northern New England will be between two systems later this afternoon as a storm system exits off the Mid Atlantic region and an upper level low approaches from the northwest. It will not be quite as cold tonight as temperatures remain above freezing in all areas with single numbers in the north to the lower teens in the south. Snow showers will reach northern areas after midnight as the upper low crosses the border between the U.
352 AM EST Mon Jan 6 2025 Low pressure continues to glide east across the Ohio Valley today.
645 AM EST Mon Jan 6 2025 - Light snow near Ludington today - Light snow midweek and weekend - Typical January temperatures - Light snow near Ludington today Low pressure is moving across the Ohio Valley and regional radar shows an expansive precipitation shield associated with it.
444 AM CST Mon Jan 6 2025 - High pressure keeps cold and dry conditions in place across most of the Northland through much of the week. High pressure was centered over the Red River Valley of the North early this morning resulting in mainly clear skies across the Upper Midwest. Dry air was in place under the high across the region, limiting cloud cover. However, some lake effect cloud cover was evident on satellite east of the high over the Upper Peninsula of Michigan into northern Wisconsin where some near surface moisture was located. The jet stream will remain to our south today and tomorrow with high pressure remaining in control.
Over the next 48 hours, we will be monitoring the next upper level trough as it approaches western Kansas. As this upper trough approaches, clouds will be on the increase late today and overnight. On Tuesday the short term ensembles, similar to previous runs, maintain an area of moisture return and lift developing across Colorado and extreme western Kansas, where upslope flow in the lower levels and difluent flow aloft start to improve as the upper trough crosses the West Central High Plains.
Coldest core of air will shift east early this week with area in a progressive northwest flow aloft, with brief upper level ridging followed by troughing due to short waves. High pressure will be over eastern ND and northwest MN today with light/variable winds. But increased cloud cover esp E ND today and a gradual warming of the low levels helping to push temps above zero in all areas this aftn. High pressure drops south Tuesday with slight cooling and clearing.
(Today through Tuesday) Surface analysis shows a cold front across central Al moving eastward. Colder air directly behind the cold front will filter in across the area today.
538 AM CST Mon Jan 6 2025 - High pressure keeps cold and dry conditions in place across most of the Northland through much of the week. High pressure was centered over the Red River Valley of the North early this morning resulting in mainly clear skies across the Upper Midwest. Dry air was in place under the high across the region, limiting cloud cover. However, some lake effect cloud cover was evident on satellite east of the high over the Upper Peninsula of Michigan into northern Wisconsin where some near surface moisture was located. The jet stream will remain to our south today and tomorrow with high pressure remaining in control.
Breezy northwest flow remains aloft as a trough digs down into the Great Basin from the northwest. As the next upper trough approaches, snow will spread across the peaks of the Central Mountains, with scattered snow showers moving to the rest of the higher terrain by tonight. As the trough axis and associated upper low moves down into the Four Corners Region, a cold front will approach our eastern plains from the north. an upper level low over northern Mexico will pull moisture northward, while an upper trough drops south across Colorado from the north. Cold air will be in place, with temperatures steady in the low to mid 20s on the Plains. Snow amounts down south in the 1 to 3 inch range look possible, with some locally higher totals not out of the question near the higher terrain.
703 AM EST Mon Jan 6 2025 Low pressure continues to glide east across the Ohio Valley today.
927 AM EST Mon Jan 6 2025 Low pressure continues to glide east across the Ohio Valley today.
A weak low pressure system will continue to push east of the Cascades through the morning hours. Afterwards, a drying trend is expected across the region as a ridge of high pressure builds over the Pacific NW.
Northern New England will be between two systems later this afternoon as a storm system exits off the Mid Atlantic region and an upper level low approaches from the northwest. It will not be quite as cold tonight as temperatures remain above freezing in all areas with single numbers in the north to the lower teens in the south. Snow showers will reach northern areas after midnight as the upper low crosses the border between the U. A northwesterly gradient will increase on Tuesday behind the departing upper level low pressure system. Weather pattern over northern New England will be controlled by spacious low pressure backing into Newfoundland and Labrador this week.
Have been watching the winds gust all night up to around 35-45 mph and temperatures drop after the latest cold front. Expecting a low this morning near freezing. Highs today will top out in the low to mid 50s to kick off your work week. Another Cold Weather Advisory is likely tonight with wind chills in the low to mid 20s across the region. Also a Freeze Warning will likely be needed tonight for surface temperatures in the low 30s from approximately 2-9AM. Highs on Tuesday top out in the low to mid 50s under partly cloudy to mostly cloudy skies and northeasterly winds.
426 AM PST Mon Jan 6 2025 Warmer for the mountains and little cooler for coast and valleys today.
We currently show it dissipating before 6am, BUT some of the higher resolution models keep in going until almost Noon. Cooler air filters in behind tonight and Tuesday. For tomorrow, we have highs in the mid 20s to just below freezing outside of portions of the Magic Valley.
A weak surface pressure gradient across our area will help prevent the higher winds from mixing to lower lying areas until late Tuesday morning, when the most energetic portion of the 'inside slider' sweeps through our area north to south and provides additional forcing.
* By late tonight into Tuesday a backdoor cold front brings shower chances and increasing east to northeast ridge winds to the Sierra. Winds are light right now, but will increase through the day as the cold front arrives. - As the upper trough drops south through the Great Basin later today into Tuesday, strong east to northeast winds will begin to ramp up, especially along the Sierra ridges.
1248 PM PST Mon Jan 6 2025 * A backdoor cold front brings light upslope showers to portions of western Nevada and the Eastern Sierra. * Strong northeast to east ridge winds are expected behind this front overnight through Tuesday. * Overall, we remain under the influence of high pressure through this week with a few passing inside slider systems keeping us under northerly flow. Conditions will remain dry and mild through this afternoon ahead of a backdoor cold front moving through the region late this afternoon and evening. Best chances for accumulating precipitation are across the high terrain as well as portions of Mono and Mineral counties. As the upper level trough associated with this cold front passage deepens across the Great Basin late tonight into Tuesday, east- northeast flow increases across the region.
138 PM EST Mon Jan 6 2025 Low pressure tracks passes off the the Mid Atlantic coast this afternoon and evening.
1252 PM EST Mon Jan 6 2025 (Today and tonight) Active weather is expected this morning as a cold front moves through with a line of showers and possibly a few thunderstorms ahead of it.
1248 PM PST Mon Jan 6 2025 * A cold front will bring light showers to western Nevada and the Eastern Sierra this evening through Tuesday morning.
- Very cold mid-week with lows in the teens and lower 20s and highs in the lower to mid 30s.
- Continued very cold tonight with lows in the low to mid 20s.
1255 PM CST Mon Jan 6 2025 - An arctic cold blast will cause temperatures to remain near or below freezing through the week's end.
Cold weather and snow showers continue today behind a cold front.
High pressure is situated just upstream over the Northern Plains and Upper Midwest. This occurs due to a downsloping wind off the high ground of Northern Lower Michigan and the fact that is makes our proximity to the area where clouds are being produced farther away. Highs will remain cold today in the lower to middle 20s - Light snow near Ludington today Low pressure is moving across the Ohio Valley and regional radar shows an expansive precipitation shield associated with it.
150 PM EST Mon Jan 6 2025 - Light lake effect snow showers and a slight chance for freezing drizzle near the Lake Michigan lakeshore (mainly LaPorte and sw Berrien counties) tonight into early Monday.