Aikyam-Lab/Synoptic-Bench huggingface dataset:
805 PM EDT Sun Apr 9 2023 Temperatures will moderate through the week with high pressure remaining over the East Coast. The latest data suggest winds will become light under the strong ridge of high pressure over VA and north-central NC overnight. Lows of 36-39 in the SE Coastal Plain expected because of the stirring of the wind there (slightly warmer). High pressure will then be overhead Monday night with strong radiational cooling. Again going on the cooler side of guidance for lows despite the moderating airmass, which yields mid to upper 30s and another possible frost in the coldest areas.
529 PM MDT Sun Apr 9 2023 The warming trend will continue over the next few days as a broad ridge passes over the region.
1049 PM EDT Sun Apr 9 2023 An anomalous upper level ridge will build eastward from the Northern Plains into the Mid Atlantic region this week.
713 PM EDT Sun Apr 9 2023 Strong High pressure over the northeast states will allow quiet weather to persist.
Much cooler weather is on the way for the middle of the week after a cold front moves through Tue into Wed.
912 PM EDT Sun Apr 9 2023 High pressure is centered over the eastern Great Lakes today.
Early evening surface map indicated 1032 mb high pressure centered over the eastern Great Lakes with ridging back west into northern IL. Southeast winds to remain light, helping keep lows at seasonable levels in the lower 40s. As this trough continues to dive southward Monday afternoon, weak surface convergence will develop along an axis extending from the Upper Mississippi Valley to the Southern Plains.
Weather will remain quiet tonight into tomorrow thanks to the passing of a short wave ridge across the Great Lakes and expanding upper ridge across the western and central US. At the sfc, high pressure over Lake Ontario will shift southward towards the Mid- Atlantic during the day tomorrow. This will help keep temperatures from falling to far and should be similar to last night with lows in the upper 30s/low 40s with just isolated protected areas dropping into the low 30s. As high pressure drifts by to the east and southeast tomorrow, winds will veer more from the east to the southeast and then south by tomorrow afternoon.
Building upper ridge and surface ridging will be the main features over the region keeping conditions tranquil. Due to surface ridging producing good radiational cooling conditions over northern Tennessee and southwest Virginia, temperatures will drop in the mid and upper 30s producing patchy areas of frost.
631 PM CDT Sun Apr 9 2023 (The rest of this afternoon and Tonight) A beautiful afternoon will continue across the area underneath broad surface ridging. Upper low will continue to drop south and become cut off from the main flow over the northern Gulf through mid week as a mid level ridge amplifies and builds northeast along the northern edge of the upper low. The upper ridge will expand across Central Plains and Midwest through the middle part of the week as the upper low remains blocked over the northern Gulf. Southerly winds will increase throughout the week, which along with the warmer temps will likely increase fire weather concerns, especially across the drought stricken locations in northeast Oklahoma.
548 PM EDT Sun Apr 9 2023 High pressure will settle into the region late tonight through the middle of the week. Moisture will increase late in the week as a low pressure system moves northeast from the Gulf of Mexico leading to a chance of showers.
737 PM EDT Sun Apr 9 2023 Temperatures will moderate through the week with high pressure remaining over the East Coast. Clouds have cleared out across the area, and temperatures are 5-15 degrees warmer than they were this time yesterday, although north- northeasterly wind gusts up to 25 mph have helped limit warming today. Skies will remain clear through the overnight hours, and the wind will lighten overnight as a high pressure center moves over southern Virginia. Went a touch warmer than the NBM 10th percentile, and these temperatures have prompted a frost advisory that is generally to the northwest of US-1. High pressure will then be overhead Monday night with strong radiational cooling. Again going on the cooler side of guidance for lows despite the moderating airmass, which yields mid to upper 30s and another possible frost in the coldest areas.
729 PM EDT Sun Apr 9 2023 A large area of high pressure extending from Southern Ontario east to the New England states will drift slowly south, becoming located across the Mid Atlantic Region and Ohio Valley by Monday morning. The lowest RH values will be over the Middle Susquehanna Valley, along with the the Central and Northern Mountains.
Upper level high pressure will continue to build over the forecast area today. The ridge axis will shift east tonight. An upper trough will inch closer to the Pacific Northwest for Monday.
This weakening/shearing trough will continue to work east into the western Great Lakes later tonight and Monday. Forcing is weak at best, and the low level environment will remain a dry one. This wave will weaken as it shears east- northeast and encounters the Great Lakes ridging. Strong ridging slowly shifts east from the Rockies into the Midwest through the first half of the week, as a cut-off low hangs out along the Gulf Coast.
628 PM CDT Sun Apr 9 2023 (This afternoon through Monday Night) Surface and building upper level ridging influences over mid state and much of eastern contiguous U. Lows tonight will only be a few degrees cooler than seasonal normal values ranging low to mid 40s, around 40 Upper Cumberland Region. Lows Monday night will exclusively span the low to mid 40s.
701 PM EDT Sun Apr 9 2023 High pressure is expected to bring dry weather through the work week. High pressure will remain in control through the period. Highs will climb into the 60s with plenty of sunshine and light winds with high pressure right overhead. Model soundings show very dry air in the lower atmosphere, allowing for dewpoints in the low 20s and RH values in the low 20s, but winds will remain below 10 mph, so not expecting fire weather concerns tomorrow. High pressure will remain in control as dry conditions continue through at least midweek.
205 PM PDT Sun Apr 9 2023 Conditions will remain warm and dry through Monday as high pressure dominates the pattern across the western US.
1029 PM EDT Sun Apr 9 2023 High pressure will settle into the region late tonight through the middle of the week. Moisture will increase late in the week as a low pressure system moves northeast from the Gulf of Mexico leading to a chance of showers.
750 PM EDT Sun Apr 9 2023 The ridge axis continues to shift eastward out of the area this afternoon. Apart from a band of high clouds tracking from west to east, skies remain sunny with temperatures well into the 50s across most of the area - and even in the lower 60s in the interior western UP. Simulated reflectivity shows the band breaking up, and shower activity becoming increasingly spotty while the weak frontal boundary associated with the trough passes through the area.
706 PM EDT Sun Apr 9 2023 High pressure is expected to bring dry weather through the work week. High pressure will remain in control through the period. Highs will climb into the 60s with plenty of sunshine and light winds with high pressure right overhead. Model soundings show very dry air in the lower atmosphere, allowing for dewpoints in the low 20s and RH values in the low 20s, but winds will remain below 10 mph, so not expecting fire weather concerns tomorrow. High pressure will remain in control as dry conditions continue through at least midweek.
924 PM EDT Sun Apr 9 2023 Strong High pressure over the northeast states will allow quiet weather to persist.
843 PM EDT Sun Apr 9 2023 High pressure continues across much of the CWA this evening.
When the front slides south of the Florida Keys, breezes will freshen from the northwest as the pressure gradient tightens between the high to our northwest and the cold front to the south. The light winds, abundant moisture in the low and mid levels of the atmosphere, and weak boundaries in the northwest flow will induce showers periodically over the next 24 hours. Winds have freshened from the northwest due to an approaching cold front north of the Florida Keys. Winds will be moderate early tonight and then become moderate to fresh as the cold front slides through the island chain.
651 PM EDT Sun Apr 9 2023 High pressure is centered over the eastern Great Lakes today.
919 PM EDT Sun Apr 9 2023 High pressure extending into the area will persist through most of the week. Will likely see some thin cirrus drift overhead at times tonight with high pressure centered off to our east. With mainly clear skies and light winds, good radiational cooling will allow for temperatures to drop into the low to mid 30s by daybreak, with some cooler readings possible in outlying/sheltered areas.
614 PM EDT Sun Apr 9 2023 A large area of high pressure extending from Southern Ontario east to the New England states will drift slowly south, becoming located across the Mid Atlantic Region and Ohio Valley by Monday morning. The lowest RH values will be over the Middle Susquehanna Valley, along with the the Central and Northern Mountains.
740 PM EDT Sun Apr 9 2023 High pressure will settle into the region late tonight through the middle of the week. Moisture will increase late in the week as a low pressure system moves northeast from the Gulf of Mexico leading to a chance of showers.
611 PM CDT Sun Apr 9 2023 (Tonight through Monday night) Water vapor imagery shows a short wave trough moving southeast through the southern high plains of west Texas while a secondary vorticity maximum was near the Four Corners region. But better chances for rain will occur on Monday as the mid level short wave trough moves into the region and interacts with a slightly unstable air mass in place.
A sunny day, with very high thin overcast in spots that's not blocking the sun.
(The rest of tonight) Increased cloud cover and a light southeasterly breeze will keep temperatures warmer tonight than the last few nights. Upper low will continue to drop south and become cut off from the main flow over the northern Gulf through mid week as a mid level ridge amplifies and builds northeast along the northern edge of the upper low. The upper ridge will expand across Central Plains and Midwest through the middle part of the week as the upper low remains blocked over the northern Gulf. Southerly winds will increase throughout the week, which along with the warmer temps will likely increase fire weather concerns, especially across the drought stricken locations in northeast Oklahoma.
627 PM EDT Sun Apr 9 2023 High pressure is expected to bring dry weather through the work week. High pressure will remain in control through the period. Highs will climb into the 60s with plenty of sunshine and light winds with high pressure right overhead. Model soundings show very dry air in the lower atmosphere, allowing for dewpoints in the low 20s and RH values in the low 20s, but winds will remain below 10 mph, so not expecting fire weather concerns tomorrow. High pressure will remain in control as dry conditions continue through at least midweek.
803 PM EDT Sun Apr 9 2023 Temperatures will moderate through the week with high pressure remaining over the East Coast. The latest data suggest winds will become light under the strong ridge of high pressure over VA and north-central NC overnight. Lows of 36-39 in the SE Coastal Plain expected because of the stirring of the wind there (slightly warmer). High pressure will then be overhead Monday night with strong radiational cooling. Again going on the cooler side of guidance for lows despite the moderating airmass, which yields mid to upper 30s and another possible frost in the coldest areas.
Temperatures continue to remain above freezing as of 02z this evening. Dewpoints remain rather elevated so it may be a struggle to get below freezing for most, so that is going to be the biggest challenge for tonight. Temperatures tonight should fall below freezing barring any fog, so the melt should slow overnight. As an upper level trough moves eastward across southern Canada, a patchy area of mid level stratus is evident on satellite over the north central Red River Valley as of mid afternoon. With the upper level trough departing the region, a strengthening ridge aloft is expected to build into the Plains behind it. Otherwise, as the upper ridge axis becomes centered over the northern Plains on Monday, another quiet day is anticipated, with high temperatures in the 40s to 50s once again.
Temperatures tonight should fall below freezing barring any fog, so the melt should slow overnight. As an upper level trough moves eastward across southern Canada, a patchy area of mid level stratus is evident on satellite over the north central Red River Valley as of mid afternoon. With the upper level trough departing the region, a strengthening ridge aloft is expected to build into the Plains behind it. Otherwise, as the upper ridge axis becomes centered over the northern Plains on Monday, another quiet day is anticipated, with high temperatures in the 40s to 50s once again.
849 PM EDT Sun Apr 9 2023 The center of dry high pressure will set up over the region and persist through midweek, resulting in a slow warming trend.
Skies are mostly clear with just a bit of upstream high level moisture as high pressure ridge aloft begins to build into the region. The models show northerly flow aloft tonight and Monday on the decrease through the two periods as an upper ridge axis moves eastward towards the CWA tonight and into Colorado on Monday. The ridge is right on top of the CWA by Monday afternoon.
401 PM CDT Sun Apr 9 2023 Summary: Drier and warmer conditions will start the week with precipitation chances returning for the latter half of the week. High pressure was located across the eastern CONUS this afternoon with an area of low pressure along the South Dakota/Nebraska border. A line of showers was observed on radar stretching from western Lake Superior southwestward to the vicinity of the previously mentioned low pressure. Another trough will move through overnight, but models are indicating a mainly dry passage. Weak high pressure will build in tomorrow with light southwesterly winds that will usher warmer air into the region.
742 PM EDT Sun Apr 9 2023 High pressure extending into the area will persist through most of the week. Ridge located northeast of the area will result in easterly winds which will become light overnight.
632 PM CDT Sun Apr 9 2023 Summary: Drier and warmer conditions will start the week with precipitation chances returning for the latter half of the week. High pressure was located across the eastern CONUS this afternoon with an area of low pressure along the South Dakota/Nebraska border. A line of showers was observed on radar stretching from western Lake Superior southwestward to the vicinity of the previously mentioned low pressure. Another trough will move through overnight, but models are indicating a mainly dry passage. Weak high pressure will build in tomorrow with light southwesterly winds that will usher warmer air into the region.
853 PM EDT Sun Apr 9 2023 The cold front is just starting to push into southwest FL this evening, with showers and storms in place still ahead of the front, mainly over the coastal waters. A cold front continues to push slowly south through the area this evening, just moving into the southern waters.
248 AM MDT Mon Apr 10 2023 A upper level ridge extends from the Desert Southwest to the northern Rockies. Skies were mostly clear with patchy thin cirrus downstream of the upper ridge to the west.
High pressure continues across much of the CWA this evening. With clear skies comes another chilly night on tap with majority of north and central Georgia dropping into the low to mid 40s, with some areas at the higher elevations potentially seeing the mid to upper 30s. Short-term guidance continues to prog dry northwesterly flow to overspread the area ahead of a building mid lvl ridge off to the west.
1215 AM CDT Mon Apr 10 2023 (This afternoon through Monday Night) Surface and building upper level ridging influences over mid state and much of eastern contiguous U. Lows tonight will only be a few degrees cooler than seasonal normal values ranging low to mid 40s, around 40 Upper Cumberland Region. Lows Monday night will exclusively span the low to mid 40s.
305 AM EDT Mon Apr 10 2023 An anomalous upper level ridge will build eastward from the Northern Plains into the Mid Atlantic region this week.
While the Rex blocking pattern holds strong through the mid week, it shifts east and yields to the Gulf low it has been suppressing toward week's end. The low then wobbles and drifts its way northeastward into and across the Mid South, bringing its increased moisture with it.
The Northland will be heating up thanks to a building ridge and warm air advection as part of a Rex block pattern.
Upper level ridging will build over the Rockies during the short term period with lee troughing developing tonight across eastern Colorado. Winds then shift to the south tonight into tomorrow due to the lee troughing mentioned above. Lows tonight will dip into the low to mid 50s with highs tomorrow in the low to mid 80s. The upper level ridge will slide into the Plains by mid week with high pressure being the dominate feature towards the surface east of the area with lee troughing across eastern Colorado.
100 AM PDT Mon Apr 10 2023 Another warm day is on tap as winds begin to increase ahead of our next cold front.
318 AM CDT Mon Apr 10 2023 The trough over the Upper Midwest will continue to slide to the east today, moving into the Great Lakes region. The associated cold front continues to slide to the southeast and will move into northwestern Missouri this morning before weakening and dissipating. In the meantime, an upper level ridge will build in over the region with increasing south to southwest flow.
Early evening surface map indicated 1032 mb high pressure centered over the eastern Great Lakes with ridging back west into northern IL. Southeast winds to remain light, helping keep lows at seasonable levels in the lower 40s. As this trough continues to dive southward Monday afternoon, weak surface convergence will develop along an axis extending from the Upper Mississippi Valley to the Southern Plains. by Tuesday as the upper trough digs all the way to the Gulf Coast before getting pinched off from the main belt of westerlies.
400 AM CDT Mon Apr 10 2023 Forecast discussion for routine morning forecast issuance Dry and unseasonably warm weather during the work week, then cooler with a chance of rain for the upcoming weekend. Ridging will increase across the central and eastern CONUS during the week as a deepening trough shifts inland from the eastern Pacific. The trough will slowly progress east, eventually reaching in the forecast area late in the forecast period. Dry and unseasonably warm weather will persist throughout the work week as the forecast area is dominated by upper ridging.
The cold front is just starting to push into southwest FL this evening, with showers and storms in place still ahead of the front, mainly over the coastal waters. A cold front continues to push slowly south through the area this evening, just moving into the southern waters. A low pressure area will develop across the northern Gulf by mid week leading to further unsettled weather through the end of the week.
Some suppression of the low level anticyclone into the Ohio Valley today will increase the SW gradient across Se Mi. This will drive warmer air across the forecast area; 925 mb temps rising to +11C.
High temperatures the past couple of days have ended up on the higher end of the spectrum of guidance and given the expected continued very dry conditions, have hedged closer toward the higher end of guidance the next couple of days.
1155 PM EDT Sun Apr 9 2023 The ridge axis continues to shift eastward out of the area this afternoon. Apart from a band of high clouds tracking from west to east, skies remain sunny with temperatures well into the 50s across most of the area - and even in the lower 60s in the interior western UP. Simulated reflectivity shows the band breaking up, and shower activity becoming increasingly spotty while the weak frontal boundary associated with the trough passes through the area.
128 AM EDT Mon Apr 10 2023 High pressure is expected to bring dry weather through the work week. Temperatures will be a little warmer than last night as some warmer air makes its way in from the west, but low are still expected to be below freezing for most of the area. High pressure will remain in control through the period. Highs will climb into the 60s with plenty of sunshine and light winds with high pressure right overhead. Model soundings show very dry air in the lower atmosphere, allowing for dewpoints in the low 20s and RH values in the low 20s, but winds will remain below 10 mph, so not expecting fire weather concerns tomorrow. High pressure will remain in control as dry conditions continue through at least midweek.
Upper ridging will build across the area tonight. A cold front will bring cooler, but still above average temperatures to the area. No precip is expected until the end of the week, as an upper trough approaches from the west.
Synoptically, lingering troughiness to the northeast of the state should continue to move east as high pressure builds to our north through the period. Pressure gradient between low pressure associated with yesterday's fropa and building high pressure will support breezy north to northeasterly winds, along with periods of showers/storms during this time. A less warm airmass in place and with the help of some clouds temperatures in the afternoon remain in the upper 70s to the low to mid 80s.
Winds will increase on Tuesday as the high shifts farther east and low pressure approaches from the northwest. The good mixing winds and the upper ridge building farther east over the northern Plains today will lead to well above normal highs in snow-free areas and even across some areas with snow in central SD. These warmer temps will create water and fire concerns for the forecast area.
Water vapor imagery shows an upper level disturbance rounding the top of a strong upper level ridge over the Northern Rockies. The main story is the warmer temperatures early this week. The upper level ridge over the Northern Rockies will move into the Northern Plains today and tomorrow. The aforementioned ridge will bring 60 to 70 degree temperatures at 850 mb across the western half of the state. Tonight low temperatures will warm above freezing for almost all of our county warning area, excluding the northeast. A strong upper level ridge will bring warm weather to the Northern Plains Tuesday. With snow depth at about a foot temperatures will likely warm into the lower 60s across central North Dakota and 50s in the James River Valley.
209 AM EDT Mon Apr 10 2023 Temperatures will moderate through the week with high pressure remaining over the East Coast. The latest data suggest winds will become light under the strong ridge of high pressure over VA and north-central NC overnight. Lows of 36-39 in the SE Coastal Plain expected because of the stirring of the wind there (slightly warmer). High pressure will then be overhead Monday night with strong radiational cooling. Again going on the cooler side of guidance for lows despite the moderating airmass, which yields mid to upper 30s and another possible frost in the coldest areas.
Skies are mostly clear with just a bit of upstream high level moisture as high pressure ridge aloft begins to build into the region. The models show northerly flow aloft tonight and Monday on the decrease through the two periods as an upper ridge axis moves eastward towards the CWA tonight and into Colorado on Monday. The ridge is right on top of the CWA by Monday afternoon. Unseasonably warm temperatures and dry weather are expected across North Central and Northeastern Colorado Monday night and Tuesday as upper level high pressure dominates the Rocky Mountain Region.