Aikyam-Lab/Synoptic-Bench huggingface dataset:
/Tonight through Sunday/ Key Messages: - Patchy fog possible north overnight into Monday morning - Warmer to start the week with only small precipitation chances Discussion: By early afternoon the persistent eastern to central Iowa fog began to dissipate, leaving behind clear skies. The high pressure centered over the area will continue to shift east with increasing southerly flow overnight.
140 PM MST Sun Jan 8 2023 Weak ridging is present over the High Plains leading to above normal temperatures, especially for locales out of the snow pack as eastern portions of the area has warmed into the mid 50s. Monday, will see another day of above normal temperatures for the area with highs in the low 40s to upper 50s. A weak wave traversing over the area will switch winds northerly mainly north of I-70 which may limit overall warming for the northern counties as cooler air does reside over the northern Plains.
330 PM EST Sun Jan 8 2023 An area of low pressure and cold front move through ENC tonight.
(Rest of today through Monday) A reinforcement to the drier, cooler pattern is on the way as a mid- level trough moves across the eastern United States today into Monday. Northerly flow behind the front will help reinforce the cooler temperatures with highs in the 70s or lower 80s remaining on Monday and the morning lows ranging from the mid 50s around the lake to 60s along the coast.
A drier and marginally cooler airmass will settle into the area behind the front with temperatures returning close to seasonal normals.
The center of the high will pass north of our area and resulting winds will be generally light northerlies, becoming light easterlies, through Monday. The postfrontal airmass is mild and of midlatitude origin which will limit how much cooler and drier we get over the short term. Lows will nonetheless be notably colder and we drop down into the mid/upper 30s F for most and lower 40s F along the highway 84 corridor. Some of the typical colder spots along the highway 82 corridor could briefly near freezing.
219 PM CST Sun Jan 8 2023 Ridging aloft, along with weak southwesterly flow has allowed some warmer temperatures to move into the CWA today, with some locations reaching the 20s and 30s. On Monday, an area of low pressure and weak upper level trough will cross the region, bringing better mixing winds. 925 mb temps are slightly cooler on Monday, with the best warmth occurring after peak heating.
Current temps across the region range from the low 30s to low 40s with most places expected to drop to near or below freezing tonight. Some patchy fog/freezing fog will remain possible late tonight across far northeastern Oklahoma.
522 PM CST Sun Jan 8 2023 (The rest of this afternoon ) Low clouds have finally dissipated over far northeast OK and expect sfc ridging over the area much of tonight. Far NE corner of OK has remained considerably cooler today as a result of persistent clouds and as such, seeing much smaller dew point depressions st this time.
Lows tonight remain on track to bottom out in the low 20s in most locations.
230 PM MST Sun Jan 8 2023 Low pressure offshore of the Pacific Northwest is forecast to remain stationary throughout much of the coming week. Atmospheric waves will periodically break off from the main area of low pressure and weaken as it approaches the Northern Rockies.
High pressure continues to provide pleasant conditions across the area today, but moisture will continue to increase and a dry and weak boundary will move through the area Monday.
628 PM EST Sun Jan 8 2023 (Rest of today through Monday) A reinforcement to the drier, cooler pattern is on the way as a mid- level trough moves across the eastern United States today into Monday. Northerly flow behind the front will help reinforce the cooler temperatures with highs in the 70s or lower 80s remaining on Monday and the morning lows ranging from the mid 50s around the lake to 60s along the coast.
947 PM EST Sun Jan 8 2023 A weak area of low pressure will move northeast through the Ohio Valley this evening.
Ridging aloft, along with weak southwesterly flow has allowed some warmer temperatures to move into the CWA today, with some locations reaching the 20s and 30s. On Monday, an area of low pressure and weak upper level trough will cross the region, bringing better mixing winds. 925 mb temps are slightly cooler on Monday, with the best warmth occurring after peak heating.
Satellite imagery shows a short wave trough moving into Chihuahua at this time, This short wave trough will move east tonight and move into the Brush Country Monday morning, and then move east of the area late Monday night.
922 PM EST Sun Jan 8 2023 A wintry mix is expected across areas mainly south of Interstate 80 tonight with crossing low pressure.
634 PM EST Sun Jan 8 2023 A weak cold front will move through tonight, followed by high pressure through midweek.
413 PM MST Sun Jan 8 2023 Water vapor shows ridge over the Plains and large trof over the far western CONUS. At the surface, lee trof is deepening over the Rocky Mountain front range. Flow aloft will be generally be zonal or ridging, with mild temps and not much chance for precip. The only trof to watch is mid week, but guidance has continued to show low probabilities for precip across our area with better chances to our south. The ridge looks to be at its strongest across the region for the end of the week and weekend, with GEFS climate percentiles near the max of climatology for both 850 and 700mb temps.
Dense fog is possible across much of the Mid-South overnight, with a possibility of freezing fog in extreme northeast AR.
627 PM EST Sun Jan 8 2023 A weak area of low pressure will move northeast through the Ohio Valley this evening.
(This afternoon through Monday) The surface cold front continues to move slowly southeastward as we approach midday, stretching from Starkville, MS to Scottsboro, AL. Cloudy skies will keep temps fairly steady in the upper 50s to near 60 this afternoon across the north before dropping into the lower 50s following passage of the cold front. The cold front will continue moving southeastward as enough upper level support finally kicks the system east of the area by this evening. For now we're thinking there will be enough breaks in the clouds in the far northwest to drop temps into the low and mid 30s for Hamilton and Double Springs. Sunshine should make an appearance once again by Monday afternoon but we'll be cooler with northerly flow and a 1025mb ridge centered off to our north.
Although, the low valleys (below around 5-6K feet) are likely to see rainfall initially as the system begins. Even in the high country, snow to liquid ratios will likely struggle to climb to or above 10 to 1 through the first half of the event. Temperatures will climb slightly warmer tomorrow thanks to the WAA. Above normal (5-15+ degrees) warmth will continue tonight thanks to persistant thick cloud cover with even warmer (15-20+ degrees) conditions Monday night CWA-wide.
533 PM CST Sun Jan 8 2023 (Tonight through Monday night) A cold front cleared the region, barely, this morning with clouds and slightly cooler temperatures back behind it.
351 PM MST Sun Jan 8 2023 Weak ridging is present over the High Plains leading to above normal temperatures, especially for locales out of the snow pack as eastern portions of the area has warmed into the mid 50s. Monday, will see another day of above normal temperatures for the area with highs in the low 40s to upper 50s. A weak wave traversing over the area will switch winds northerly mainly north of I-70 which may limit overall warming for the northern counties as cooler air does reside over the northern Plains.
443 PM MST Sun Jan 8 2023 Weak ridging in the west-southwest flow aloft will prevail over Colorado today and tonight. HRRR shows an inversion remaining over the plains where highs will be cooler, upper 30s to 40s.
255 PM MST Sun Jan 8 2023 Weak ridging in the west-southwest flow aloft will prevail over Colorado today and tonight. HRRR shows an inversion remaining over the plains where highs will be cooler, upper 30s to 40s.
644 PM EST Sun Jan 8 2023 (Through Monday) A cold front will push through the area overnight tonight into tomorrow morning. High temperatures tomorrow are forecast in the low to mid 60s across SE Alabama, SW Georgia, and the FL Panhandle, while the Florida Big Bend are forecast in the upper 60s to near 70.
514 PM CST Sun Jan 8 2023 (This evening through Monday) An upper level ridge will lead to benign conditions the rest of today with mostly clear skies.
Temperatures tonight are expected to drop to near freezing. As such, freezing fog could develop in regions of extreme northeast Arkansas and the Missouri Bootheel as temperatures drop overnight. Dense fog is possible across much of the Mid-South overnight, with a possibility of freezing fog in extreme northeast AR.
Although, the low valleys (below around 5-6K feet) are likely to see rainfall initially as the system begins. Even in the high country, snow to liquid ratios will likely struggle to climb to or above 10 to 1 through the first half of the event. Temperatures will climb slightly warmer tomorrow thanks to the WAA. Above normal (5-15+ degrees) warmth will continue tonight thanks to persistent thick cloud cover with even warmer (15-20+ degrees) conditions Monday night CWA-wide.
550 PM CST Sun Jan 8 2023 (This evening through Monday Night) The last of the low clouds are moving slowly across I-20 in NE LA with mid 50s and nothing but sunshine everywhere else. 2 pm temps in the sun are in the low to mid 60s with northerly winds 5 to 15 mph as high pressure settles in for the night. A weak upper low will translate eastward along the Gulf coastal states keeping rain chances down along I-10. We will see a warmer range of 40s overnight Monday as the southerly winds persist.
It is also bringing stronger mid-level winds and associated lee side troughing east of the mountains, which is facilitating gusty winds in the Livingston to Nye corridor.
Short wave trough and attendant weak surface front currently moving through the SE CONUS. Widespread high clouds preceding the trough are spreading across the big bend and northern peninsula, with light winds and temps across ECFL falling through the 60s. Weak frontal trough over central Florida will push south of the area, with nil wx impacts.
As with the past few days, patchy freezing fog is possible in areas in and around Sheridan County, as well as along the Milk River and Missouri River basins.
Surface analysis showed the cold front just southeast of our southeast most zones and the chance for rain has ended. The center of the high will pass north of our area and resulting winds will be generally light northerlies, becoming light easterlies, through Monday. The postfrontal airmass is mild and of midlatitude origin which will limit how much cooler and drier we get over the short term. Lows will nonetheless be notably colder and we drop down into the mid/upper 30s F for most and lower 40s F along the highway 84 corridor. Some of the typical colder spots along the highway 82 corridor could briefly near freezing.
103 AM MST Mon Jan 9 2023 Weak ridging is present over the High Plains leading to above normal temperatures, especially for locales out of the snow pack as eastern portions of the area has warmed into the mid 50s. Monday, will see another day of above normal temperatures for the area with highs in the low 40s to upper 50s. A weak wave traversing over the area will switch winds northerly mainly north of I-70 which may limit overall warming for the northern counties as cooler air does reside over the northern Plains.
1234 AM EST Mon Jan 9 2023 Low pressure across eastern Kentucky will move northeast into West Virginia tonight.
1214 AM EST Mon Jan 9 2023 (Rest of today through Monday) A reinforcement to the drier, cooler pattern is on the way as a mid- level trough moves across the eastern United States today into Monday. Northerly flow behind the front will help reinforce the cooler temperatures with highs in the 70s or lower 80s remaining on Monday and the morning lows ranging from the mid 50s around the lake to 60s along the coast.
204 AM EST Mon Jan 9 2023 Dry conditions expected through the first of the half of the week with high pressure in control.
107 AM EST Mon Jan 9 2023 A weak cold front will move through tonight, followed by high pressure through midweek.
110 AM MST Mon Jan 9 2023 A weak wave is still crossing over the area, with latest radar returns showing very light snow occurring on the higher peaks of the Beartooths, and a weak mountain wave going over the Bighorns, observed as the Bighorn Mountain RAWS weather station is gusting at 57 mph as of 1 AM. Little to nothing noteworthy to discuss for Monday, as upper ridging briefly returns, and it will be a dry and warm day across the area, with highs reaching the mid to upper 40s.
1030 PM EST Sun Jan 8 2023 A weak cold front will move through tonight, followed by high pressure through midweek.
1104 PM CST Sun Jan 8 2023 Surface analysis showed the cold front just southeast of our southeast most zones and the chance for rain has ended. The center of the high will pass north of our area and resulting winds will be generally light northerlies, becoming light easterlies, through Monday. The postfrontal airmass is mild and of midlatitude origin which will limit how much cooler and drier we get over the short term. Lows will nonetheless be notably colder and we drop down into the mid/upper 30s F for most and lower 40s F along the highway 84 corridor. Some of the typical colder spots along the highway 82 corridor could briefly near freezing.
1118 PM CST Sun Jan 8 2023 (This evening through Monday Night) The last of the low clouds are moving slowly across I-20 in NE LA with mid 50s and nothing but sunshine everywhere else. 2 pm temps in the sun are in the low to mid 60s with northerly winds 5 to 15 mph as high pressure settles in for the night. A weak upper low will translate eastward along the Gulf coastal states keeping rain chances down along I-10. We will see a warmer range of 40s overnight Monday as the southerly winds persist.
Rain may mix with snow in the morning down to around 2600 ft in the lower valleys, but will quickly change over to rain as the system (a warm front) moves through.
1232 AM EST Mon Jan 9 2023 A wintry mix is expected across areas mainly south of Interstate 80 tonight with crossing low pressure.
A chance of patchy freezing fog remains along the Milk and Missouri River basins through the early morning hours. The primary change with the update is freezing fog is looking to be generally more confined towards the east than in previous updates. As with the past few days, patchy freezing fog is possible in areas in and around Sheridan County, as well as along the Milk River and Missouri River basins.
346 AM EST Mon Jan 9 2023 High pressure centered over Tennessee will provide dry weather across the Ohio Valley today.
Quiet and mild conditions will be the norm overnight tonight, with high clouds and low level WAA keeping temps in the low 30s.
Snow pack will again continue to affect temps in the far east, with cooler conds there. Lee side trough will re- establish itself tonight and support breezy SW winds across NE WY, with a few gusts over 50 mph possible. Cooler conds on track for Wed and Thur, before another round of long wave ridging brings more mild weather to the region this weekend, with 50s and few 60s possible in the BHs foothills and possibly adjacent plains.
A weak cold front will push across the Florida peninsula today with no precipitation expected Only effect will be a wind shift to the northwest as skies become mostly clear.
A few flurries and/or patches of drizzle/freezing drizzle over the high elevations to start the day, but this will end quickly 2. Looking at thermal profiles, temperatures look to be borderline for any ice crystallization to occur so drizzle/freezing drizzle also cannot be ruled out in these upslope areas. Clouds will gradually decrease later this morning and during the afternoon as high pressure builds in, and temperatures will be near seasonal normals.
1040 PM CST Sun Jan 8 2023 (Tonight through Monday night) A cold front cleared the region, barely, this morning with clouds and slightly cooler temperatures back behind it.
Aloft, we're seeing mid-upr cloud cover increase from west to east as a mid-lvl trough approaches. TODAY: The aforementioned trough will enter the western Dakotas shortly after daybreak. The passage of the mid-lvl trough will usher in stronger westerly surface and low lvl flow this afternoon. Warmer surface temperatures will try to advect eastward, and there is some potential for temperatures to make a run towards the 30s. Despite the deeper snow cover, have trended towards some of the warmer guidance given how temperatures responded on Sunday.
1038 PM CST Sun Jan 8 2023 (This evening through Monday) An upper level ridge will lead to benign conditions the rest of today with mostly clear skies.
1051 PM MST Sun Jan 8 2023 Water vapor shows ridge over the Plains and large trof over the far western CONUS. At the surface, lee trof is deepening over the Rocky Mountain front range. Flow aloft will be generally be zonal or ridging, with mild temps and not much chance for precip. The only trof to watch is mid week, but guidance has continued to show low probabilities for precip across our area with better chances to our south. The ridge looks to be at its strongest across the region for the end of the week and weekend, with GEFS climate percentiles near the max of climatology for both 850 and 700mb temps.
938 PM MST Sun Jan 8 2023 Weak ridging is present over the High Plains leading to above normal temperatures, especially for locales out of the snow pack as eastern portions of the area has warmed into the mid 50s. Monday, will see another day of above normal temperatures for the area with highs in the low 40s to upper 50s. A weak wave traversing over the area will switch winds northerly mainly north of I-70 which may limit overall warming for the northern counties as cooler air does reside over the northern Plains.
1242 AM EST Mon Jan 9 2023 A weak area of low pressure will move northeast through the Ohio Valley this evening.
359 AM EST Mon Jan 9 2023 Low pressure will move away from the region today.
339 AM EST Mon Jan 9 2023 Key Messages: -- Sunshine returns -- Temperatures slightly above normal High pressure moving overhead today will be accompanied by drier low- level air advecting in from the west, resulting in a gradual break- up of the low clouds by mid-late morning. Tonight the high will drift off to the east providing us with very light return flow from the south. Given these factors, temperatures will drop several degrees into the lower and middle 30s this evening then steady out overnight.
548 AM CST Mon Jan 9 2023 (Now through Tuesday) The cold front that passed through the area yesterday has stalled just to our south tonight. Highs will be in the lower to mid 70s today. Mid level ridging will nudge in from the west on Tuesday and with skies expected to become mostly sunny by the afternoon, temperatures will rise into 80s across most the area.
Upper level ridging builds in this afternoon into Tuesday, with a low level thermal ridge setting up overhead. NBM seems to be under-doing the high temperatures both today and tomorrow with this setup, have blended in the MAV/MET to pull them up some.
(Today through Tuesday Night ) High pressure will be overhead to start today. As the period progresses, the high will depart toward the southeast United States. A dewpoint surge is expected Tuesday afternoon/night as a warm front crosses the state from the southwest.
525 AM CST Mon Jan 9 2023 (Today through Tuesday Night ) High pressure will be overhead to start today. As the period progresses, the high will depart toward the southeast United States. A dewpoint surge is expected Tuesday afternoon/night as a warm front crosses the state from the southwest.
441 AM CST Mon Jan 9 2023 Early morning patchy fog and freezing fog will give way to sunny skies and cool conditions today.
954 AM EST Mon Jan 9 2023 Pretty quiet morning with temperatures in the low to mid 30s. Key Messages: -- Sunshine returns -- Temperatures slightly above normal High pressure moving overhead today will be accompanied by drier low- level air advecting in from the west, resulting in a gradual break- up of the low clouds by mid-late morning. Tonight the high will drift off to the east providing us with very light return flow from the south. Given these factors, temperatures will drop several degrees into the lower and middle 30s this evening then steady out overnight.
the forecast area will be under northwest flow today ahead of some weak ridging that moves over tonight. Over snow covered areas, high temperatures are forecast to be in the lower to middle 40s but could certainly be several degrees lower given little change in temperatures at 850mb. There will be a little more high cloud cover moving through period from west to east ahead of an approaching upper level trough. Low temperatures fall into the lower to upper 20s.
A few low level clouds have also been detected, including being visually observed at the office, as the warm frontal boundary very slowly slides eastward. A weak warm frontal boundary will pass through the area creating a light, yet steady westerly component to winds through the day today, while allowing clouds to clear out from west to east. With a bit better mixing, this should allow for high temperatures similar if not slightly warmer compared to yesterday, especially in the Bismarck/Mandan area. NBM PoPs remain on the low end, while hi-res models are pretty consistent in light snow falling over most of the forecast area at some point in time. Therefore, increased PoPs in this highlighted area Tuesday for evening.
While it will allow for warmer temperatures in the north today compared to recent days, the inversion will persist over the area. Skies will clear this morning as the wave moves to the east and an upper ridge builds into the area. There will be enough moisture with this system for a chance of a mix of light rain, freezing rain and light snow depending on the temperatures at the surface and aloft when the precipitation occurs.
530 AM CST Mon Jan 9 2023 Early morning patchy fog and freezing fog will give way to sunny skies and cool conditions today.
926 AM EST Mon Jan 9 2023 High pressure centered over Tennessee will provide dry weather across the Ohio Valley today.
Otherwise, look for a slightly warmer day today compared to yesterday.
Key Messages: -- Sunshine returns -- Temperatures slightly above normal High pressure moving overhead today will be accompanied by drier low- level air advecting in from the west, resulting in a gradual break- up of the low clouds by mid-late morning. Tonight the high will drift off to the east providing us with very light return flow from the south. Given these factors, temperatures will drop several degrees into the lower and middle 30s this evening then steady out overnight.
High pressure builds in for the short term with generally seasonal temperatures.
837 AM EST Mon Jan 9 2023 Dry conditions expected through the first of the half of the week with high pressure in control.
So no plans on changing any of the high wind warnings that are currently in effect. But then we see another increase in gradients as upper ridge axis moves east and a low pressure system tracks into western Montana and western Wyoming.
(Today and tonight) Cold frontal passage is in progress in the tri-state region.
958 AM EST Mon Jan 9 2023 Low pressure will move away from the region today.
The low level winds are downsloping in many areas. Temperatures are fairly mild with 30s to lower 40s F over the lower foothills and western plains. Upper ridging will move slowly eastward across the CWA today and tonight. The low level winds will be a mix of downsloping and normal diurnal patterns. Snowfall amounts do not warrant any highlights and the Park Range should see the highest amounts by 12Z Tuesday morning.