Aikyam-Lab/Synoptic-Bench huggingface dataset:
As a result lows tonight and Monday night will fall well below freezing with high pressure and clear skies allowing for radiational cooling efficiently dropping temps into the upper teens and low 20s. Monday will see plenty of sunshine with the high pressure in place with highs in the upper 30s and low 40s in the valley and snowpack influenced areas with some temps near 50 in the forests of MN.
101 PM CDT Sun Apr 16 2023 Cooler and much drier air will filter in behind a cold front today with highs in the 60s and lows tonight in the 40s. Another upper-level trough and cold front will bring additional shower and thunderstorm chances back to the Mid-South for late this week.
1147 AM MDT Sun Apr 16 2023 We will be moving into the warmest and calmest period of the forecast over the next 24-36 hours as a transitory ridge aloft moves from the Great Basin to the Great Plains. The next longwave trough moves into the Pacific Northwest by Monday evening.
1226 PM CDT Sun Apr 16 2023 Low stratus this morning behind a departing cold front is diminishing and will further erode this afternoon. /86/ Today and Tonight: Looking at the synoptic scale, northwesterly flow between an upper-level ridge over the Rocky Mountains and a negatively- tilted low pressure system over the Upper Midwest is driving cold, dry air advection across the Gulf South today. As a cold front continues to push east of the forecast area this morning, the remnants of last night's showers and thunderstorms should clear out.
142 PM EDT Sun Apr 16 2023 Showers and thunderstorms possible associated with a cold front this evening. As ridging builds over the region during the week, expect warming temperatures and dry weather.
Discussion: A narrow line of showers along a cold front is currently crossing the area. A cooler and drier air mass builds into the area tonight behind the front, and lows in most locations will be in the lower to mid 40s. Some 30s are expected in the higher elevations, but winds are expected to stay up through the night, preventing widespread frost.
511 PM MDT Sun Apr 16 2023 Current surface analysis shows low pressure over the Great Lakes region with high pressure centered over the Plains. Upper level analysis shows low pressure over eastern IA, with ridge over the Rockies region.
528 PM MDT Sun Apr 16 2023 The in incoming upper ridge's axis is near the western Colorado border at this time. Models have the upper ridge axis over the CWA tonight and Monday morning. Thickness grids point temperatures are 4-8 C to temperatures being some 4-7 C warmer than today's highs.
The cold front will clear east central Florida by the mid morning hours. Afternoon highs will be much cooler behind the front as winds veer north to northwesterly with wind gusts up to 20-25mph possible along the coast. SW/W winds will increase to 15-20 kts offshore, north of Sebastian Inlet with the directional component becoming W/NW by daybreak as a cold front slips down the peninsula. Southerly winds will continue to veer SW/W, eventually WNW/NW by sunrise Mon morning with approach and eventual passage of a cold front.
635 PM CDT Sun Apr 16 2023 (Tonight) Clearing skies and seasonably cooler/drier wx is spreading into the central TN Valley this early Sun afternoon, following the passage of a cold front earlier today. Temps are likely near their highs for today as well, which are mainly in the lower/mid 60s for most spots. Temps later tonight look to fall predom into the lower/mid 40s for lows.
631 PM CDT Sun Apr 16 2023 (This afternoon through Monday night) Return flow is progressing nicely as surface anticyclogenesis shifts east away from the Southern High Plains and lee troughing is beginning. A minor short wave trough is forecast by a consensus of the models to affect west Texas and southeastern New Mexico beginning late tonight and continuing through Monday. The aforementioned short wave trough will exit stage left Monday evening, leaving subsidence and an end to precipitation chances. In terms of temperatures, lows tonight will be about 10 degrees warmer than this morning's chilly lows; in other words, close to normal.
836 PM EDT Sun Apr 16 2023 Showers will continue this evening with the passing of a cold front. The beginning of the work week will be characterized by much cooler air and a few showers on the back side of a large low pressure system. Rain showers continue to move across the Upper Ohio Valley and Allegheny mountains as a cold front crosses the region. Temperatures will bottom out tonight in the low/mid 40s. Isolated to scattered rain showers will continue Monday as the upper low associated with today's front passes to the north.
Low temperatures tonight will be much cooler and are expected to range in the lower to mid 40s over interior areas and in the upper 40s to lower 50s near the coast. Highs on Monday should range in the lower to mid 70s.
However, as the pre-frontal clouds and cold front approach overnight and into tomorrow, winds will move northwest and freshen.
833 PM EDT Sun Apr 16 2023 Showers and thunderstorms possible associated with a cold front this evening. As ridging builds over the region during the week, expect warming temperatures and dry weather.
The passage of a disturbance over Northern California will allow for increasing clouds and cooler temperatures toward mid-week.
609 PM CDT Sun Apr 16 2023 Quiet night ahead as clouds clear ahead of a mid level ridge moving east into the region. There may be a slight potential where snowpack remains and melting was ongoing today, but will leave fog out of the forecast for now given the low confidence. In the east where snowpack remains, highs in the low 40s are forecast.
Under surface ridging, clear skies and light winds slackening further will allow tonight's temperature minimums to fall into the 40s, below average for this time of the year. The center of high pressure over N TX will move SE toward SW LA by daybreak. Skies remain sunny and lows around daybreak will be in the lower to mid 40s for an average.
(This afternoon through Monday) The surface cold front has entered into northwest Georgia and is starting to approach the Atlanta Metro. As the front continues moving eastward across Georgia and the longwave trough axis swings across the eastern Conus, dry westerly to northwesterly flow will quickly clear clouds out of the forecast area. Cooler temperatures are expected overnight tonight behind the front, with lower 40s possible across the north Georgia mountains and lower 50s in the far southeast.
By tomorrow evening we'll see mid to high clouds moving in from the northwest ahead of this second trough with a possible snow shower over the Uinta Mountains. The clouds will limit radiational cooling Monday night, inhibiting setup of an inversion, especially northeast of peaks and ridges where down slope winds will likely remain breezy overnight at 10 to 20 mph. Look for monday's highs to warm to be five to ten degrees above normal with the influence of the ridge, mostly clear skies and warm air advecting in from the southwest.
640 PM CDT Sun Apr 16 2023 (This afternoon through Monday Night) The cold front has moved east of Middle Tennessee and taken the showers with it. Of course, cooler temperatures are already filling in behind the surface boundary, and with gusty winds. So look for sunny skies tomorrow with cooler temperatures and gusty winds continuing.
By tomorrow evening we'll see mid to high clouds moving in from the northwest ahead of this second trough with a possible snow shower over the Uinta Mountains. The clouds will limit radiational cooling Monday night, inhibiting setup of an inversion, especially northeast of peaks and ridges where down slope winds will likely remain breezy overnight at 10 to 20 mph. Look for Monday's highs to warm to be five to ten degrees above normal with the influence of the ridge, mostly clear skies, and warm air advecting in from the southwest.
A building ridge aloft and a steady return of southerly low level flow will yield a sunny and warm day Monday with highs from the middle 70s to the lower 80s. Southerly winds will increase during the afternoon in response to deepening low pressure across Southeast Colorado. Low level moisture return Monday night and breezy southerly winds will keep temperatures warmer with lows in the 50s.
626 PM CDT Sun Apr 16 2023 (This evening through Monday) High pressure is building at the surface, leaving calmer winds this evening and overnight. Ridging at mid levels will persist this afternoon through Monday morning, allowing for clear skies. As the high pressure and ridge begins to move eastward, winds will shift at the surface and aloft.
The in incoming upper ridge's axis is near the western Colorado border at this time. Models have the upper ridge axis over the CWA tonight and Monday morning. Thickness grids point temperatures are 4-8 C to temperatures being some 4-7 C warmer than today's highs.
Forecast soundings show the freezing level lowering through the night with snow expected to become increasingly likely after 08z. It's still not certain that we will see temperatures going down to freezing and the ground temperatures are relatively warm. Massive height falls continue tonight as the upper low approaches Lower Michigan. Instability is not strong, although with the upper low we can expect some diurnal enhancement to the snow shower activity on Monday afternoon, but temperatures in the upper 30s should limit accums to only the snow rates associated with deeper convective updrafts.
This will be realized in the form of strong surface winds as the low winds up and deepens tonight as the upper level low moves overhead.
621 PM CDT Sun Apr 16 2023 The large upper trough that pushed a cold front through the area will be moving eastward tonight into Monday, leaving behind a cooler and drier airmass in its wake.
Current winds vary from 5-10kts across the area this evening, in the wake of the recently departed cold front to our E/SE across the Carolinas. Aside from that, clear skies overnight will allow temperatures to fall into the lower/middle 40s for Monday morning, and that matches well with the current/expected forecast for overnight.
Quiet night ahead as clouds clear ahead of a mid level ridge moving east into the region. There may be a slight potential where snowpack remains and melting was ongoing today, but will leave fog out of the forecast for now given the low confidence. In the east where snowpack remains, highs in the low 40s are forecast.
647 PM CDT Sun Apr 16 2023 Any accumulating precipitation (snow) remains east of our CWA and while a few flurries can't be ruled out in our far east even those chances are waning as the upper low transitions east this evening. Expect decreasing winds with the loss of daytime heating and lighter winds as the surface gradient weakens (surface ridging building from the west). As a result lows tonight and Monday night will fall well below freezing with high pressure and clear skies allowing for radiational cooling efficiently dropping temps into the upper teens and low 20s. Monday will see plenty of sunshine with the high pressure in place with highs in the upper 30s and low 40s in the valley and snowpack influenced areas with some temps near 50 in the forests of MN.
637 PM CDT Sun Apr 16 2023 (Tonight through Monday night) High pressure across the area is bringing pleasant conditions to much of South Central Texas this afternoon. Lows will be cooler than normal overnight from the upper 40s into the 50s with shifting winds from the southeast as high pressure slides to the east.
Surface ridging and a high pressure will continue to build in across the region tonight. /JNE/ The large upper trough that pushed a cold front through the area will be moving eastward tonight into Monday, leaving behind a cooler and drier airmass in its wake.
136 AM EDT Mon Apr 17 2023 A cold front will move east through the region tonight. Cool high pressure will follow the front early this week. A cold front is currently across western North Carolina and moving to the east. While the cold front is still expected to make it through the entire forecast area, it will take some additional time for the colder air to funnel into the region, and still have a range of low temperatures from the mid 40s in the west to the mid 50s in the east. With the front off the coast and the upper trough axis passing early in the day, look for subsidence and drying, along with breezy west winds developing as low level mixing increases during the morning.
337 AM CDT Mon Apr 17 2023 A fairly narrow ridge axis across the region early this morning, with light winds and clear skies in place. As the day progresses, this ridge axis will move eastward, with light winds for eastern areas. Upper level ridging moves into and through the area tonight and Tuesday, with warming temps aloft and at the surface. Low pressure to the south and southeasterly low level flow to start things off means a poor mixing environment, and while 1/2km winds increase to between 25 and 40kts, uncertain to what degree these will impact surface winds.
This will mean a relatively mild day with highs similar to yesterday, although maybe a touch warmer west. Highs will range from the low to mid 40s east (where we still have snowpack) to the upper 50s and lower 60s west. The ridge axis will move across eastern North Dakota tonight, transitioning western and central North Dakota into southwest flow aloft in advance of a western US trough. Tonight's lows will range from the low to mid 20s east to the mid to upper 30s west. Any mixing of snow will be relatively brief as temperatures warm into the low to mid 40s across the north Tuesday afternoon.
1255 AM PDT Mon Apr 17 2023 Cooler temperatures will begin the week as a disturbance passes through the region.
Current radar and satellite analysis depict light scattered showers continuing to move east of Pittsburgh in the wake of the cold front before a swath of dry air advances from the west. As the low continues east the Ohio River Valley will tap into residual moisture and isolated light rain showers will move in front the west as the dry slot tracks north.
218 AM MDT Mon Apr 17 2023 The warmest part of the forecast is arriving for the next few days as a transitory ridge moves across the Rockies. As the ridge slides farther East on Tuesday heights will be lowering and the gradient tightening as another Pacific storm barrels farther inland. A band of higher clouds will be drifting through earlier in the day which may limit some of the wind getting to the surface but by mid afternoon with the approach of a cold front.
Highs today will top out in the low to mid 70s, with breezy conditions.
Weak ridging aloft scoots east tonight all the while a stronger LLJ helps pump better gulf moisture across much of the region.
High pressure will build in over the region today as the last remaining light showers disperse and move offshore by late morning.
Any accumulating precipitation (snow) remains east of our CWA and while a few flurries can't be ruled out in our far east even those chances are waning as the upper low transitions east this evening. Expect decreasing winds with the loss of daytime heating and lighter winds as the surface gradient weakens (surface ridging building from the west). As a result lows tonight and Monday night will fall well below freezing with high pressure and clear skies allowing for radiational cooling efficiently dropping temps into the upper teens and low 20s. Monday will see plenty of sunshine with the high pressure in place with highs in the upper 30s and low 40s in the valley and snowpack influenced areas with some temps near 50 in the forests of MN.
The associated cold front extends southward through the eastern states, across Florida and into the eastern Gulf of Mexico. Clearing conditions with cooler and drier air will filter into the region for the next couple of days.
Highs will be a tad warmer (mid to upper 70s) as well as lows tonight (mid to upper 50s for most areas and lower to mid 60s for H-town metro south to the beaches). At the lower levels, a strong low pressure system that is progged to move across the Nor- thern Plains, which may not be enough to tighten the gradient down here.
A change in the weather pattern arrives today as a low pressure system moves in from the northwest. Cooler temperatures can be expected this week as well. Today and Tuesday High pressure over the region will begin to shift east today as a trough of low pressure moves inland.
(Today and tonight) Expect winds to quickly increase from the southwest late this morning through early this afternoon as a lee trough deepens.
Lows tonight will be below normal ranging from around 50 inland to the low 60s along the coast.
Highs today, based on afternoon clearing from west to east will reach the lower 60s southwest to lower 50s central, and near 40 northeast under more persistent clouds.
- Milder temperatures and rain midweek The roller coaster continues as transient riding and southerly return flow bring warmer air back to Michigan for the midweek period.
- Warmer for the middle of the week with multiple chances for rain mid to late week leading to a cool weekend.
Skies are generally partly cloudy, with rain-cooled temperatures in the lower to mid 70s at this early morning hour. A weak cold front will push through the island chain today from west to east in the late morning to early afternoon hours. High pressure will build across the Southeast tonight through Tuesday night, sliding offshore into the Western Atlantic by mid-week. From synopsis, a cold front will push through the Florida Keys coastal waters late this morning through early afternoon. As high pressure builds off the coast of the Carolinas, moderate northeast to east breezes will continue through the end of the work week. Surface winds are southwest at near 5 knots, but due to a cold front moving through the area, winds will shift to the northwest and increase to 5 to 10 knots during the afternoon.
1233 AM CDT Mon Apr 17 2023 (Tonight through Monday night) High pressure across the area is bringing pleasant conditions to much of South Central Texas this afternoon. Lows will be cooler than normal overnight from the upper 40s into the 50s with shifting winds from the southeast as high pressure slides to the east.
The in incoming upper ridge's axis is near the western Colorado border at this time. Models have the upper ridge axis over the CWA tonight and Monday morning. Thickness grids point temperatures are 4-8 C to temperatures being some 4-7 C warmer than today's highs. On Monday night and Tuesday, the ridge aloft rapidly shifts into the central plains states and replaced with an increasing southwest flow aloft. A weak cold front expected to drop southward over the plains Tuesday night.
1139 PM CDT Sun Apr 16 2023 (Tonight through Tuesday night) Cooler and drier air continues to settle into the region as a high pressure builds in. Northerly winds will begin to taper overnight and into early tomorrow as the high makes its way directly overhead. Going into tomorrow, we will see warmer temperatures along with light and variable winds. As the high pressure moves off to the east winds will return from the south, with southerly flow reestablishing itself over the entire CWA by late Monday night.
After a cold start Tuesday morning with temperatures in the lower 20s, Tuesday will see a quick rebound into the lower to middle 50s with mostly sunny skies to start the day. This lull in the ongoing active weather pattern will be short-lived with a deepening longwave trough poised to impact much of the nation for the remainder of the forecast period.
Afternoon humidity around 20% and temperatures in the lower 80s could lead to some spotty grass fire issues mainly west of I-35 this afternoon, but otherwise, it'll be another nice day. This will lead to much warmer overnight lows Monday night with readings in the upper 50s expected. The weak ascent provided by this disturbance and an overall increase in low level warm advection thanks to a deepening surface cyclone in the lee of the Rockies should lead to some potential for showers/storms Tuesday afternoon along the I-35 corridor. We'll keep PoPs only at 20% during this time given the overall lack of enthusiasm from the high-resolution guidance but will continue to monitor this potential.
Upstream radar observations along with CAM guidance support the expansion of the low rain chances overnight from southern Indiana to an area roughly south of the I-64 corridor. Closed upper low over northern Illinois will lift NNE tonight, and become vertically stacked with its sfc reflection near Green Bay. Cold pool showers pinwheeling around the low could get very close to our southern Indiana counties, especially tonight.
201 AM EDT Mon Apr 17 2023 Gusty winds will continue through late Tuesday as a low pressure system lifts northeast into Canada.
357 AM EDT Mon Apr 17 2023 Very dry weather is expected through Tuesday as high pressure builds in.
1216 AM CDT Mon Apr 17 2023 (This afternoon through Monday night) Return flow is progressing nicely as surface anticyclogenesis shifts east away from the Southern High Plains and lee troughing is beginning. A minor short wave trough is forecast by a consensus of the models to affect west Texas and southeastern New Mexico beginning late tonight and continuing through Monday. The aforementioned short wave trough will exit stage left Monday evening, leaving subsidence and an end to precipitation chances. In terms of temperatures, lows tonight will be about 10 degrees warmer than this morning's chilly lows; in other words, close to normal.
325 AM EDT Mon Apr 17 2023 A cold front will move offshore this morning. High pressure over the lower Mississippi Valley region will build into the Carolinas and Mid-Atlantic states through mid-week. Breezy and cooler today with plenty of sunshine. The cold front was moving east across central NC early this morning. Cool and dry air advection can be expected today as the main storm system lifts from the Great Lakes into SE Canada, and high pressure builds from Texas across the south. Sunny, breezy and warmer conditions Tuesday. The high pressure will move overhead on Tuesday night.
(Today) Latest near term model consensus suggests that a deepening mid/upper-level cyclone located in the vicinity of Lake Michigan this morning, will shift northeastward through the central Great Lakes over the course of the day. In the absence of notable thermal advection, afternoon highs will be similar to those observed yesterday, ranging from the lower 60s in elevated terrain to 65-70 degrees in the valley.
1215 AM CDT Mon Apr 17 2023 The large upper trough that pushed a cold front through the area will be moving eastward tonight into Monday, leaving behind a cooler and drier airmass in its wake.
Gusty winds from 20 to 30 mph today with the highest gusts mainly east of Highway 65. Relative humidities will be in the lower to middle 20 percent range.
Rain and mountain snow showers will occur today along a stalled cold front extending across central Idaho through West Central Montana.
(Today) Noticeably warmer temperatures today as sfc ridging slides east and southerly winds return.
318 AM EDT Mon Apr 17 2023 A strong cold front will cross the Keystone state tonight, bringing colder conditions for Monday into Tuesday.
1212 AM CDT Mon Apr 17 2023 (This evening through Tuesday) High pressure is expected to continue through much of the short term period bringing with it calm and drier conditions. QPF amounts are expected to be on the low side and confidence of rain showers are low at this time. Forecast high temperatures are expected to be in the 70s Monday and Tuesday afternoons with the lower 80s possible Tuesday afternoon portions of central and southern Arkansas.
228 AM CDT Mon Apr 17 2023 The deep occluded low pressure system over the Great Lakes will lift further northeast over the next 24 hours. With the well-mixed boundary layer today we expect dewpoints to be closer to the lower-end of guidance (mid 20s and possibly lower).
339 AM EDT Mon Apr 17 2023 Cooler behind the front to start the week. As ridging builds over the region during the week, expect warming temperatures and dry weather.