Aikyam-Lab/Synoptic-Bench huggingface dataset:
246 AM CST Mon Nov 22 2021 A ridge of high pressure currently centered over central KS will slowly shift southeast into the Ozarks today. For tonight into Tue, expect warm advection to increase across the region tonight, as the main mid level ridge gradually breaks down. This will lead to nice downslope flow, with above normal temperatures expected in the lower 60s returning to the area. Expecting another mild day on Wed for areas ahead of the front, (mainly east of the KS Turnpike) as compressional heating leads to max temperatures again into the lower 60s. Ketcham Expect minimal travel concerns for Thanksgiving day, as a ridge of high pressure builds into the region, with near seasonal temperatures, after a chilly morning for Thu morning.
A cold front currently advancing into the Wayne and Choctaw counties continues through the remainder of the area by 13-14Z on Monday. A large longwave trof over the eastern and central states amplifies while shifting eastward across the eastern states and into the western Atlantic through Tuesday. Lows tonight generally range from the mid 50s inland to near 60 at the coast, then much cooler temperatures follow for Monday night when lows range from the mid 30s inland to around 40 at the coast. Highs on Monday range from the lower 60s well inland to around 70 at the coast, then highs on Tuesday will be cooler and range from the mid to upper 50s well inland to the lower 60s closer to the coast.
141 AM CST Mon Nov 22 2021 The cold front that brought rain last night has now pushed east of the area this morning. Another reinforcing cold front will move through the Tennessee Valley later today bringing in a much colder airmass. As a result, temperatures this morning are in the low to mid 50s and will gradually fall throughout the day. Latest forecast trends have moderated this airmass a bit, but if winds subside and go calm this evening, expect temperatures to potentially drop down into the lower 20s. By Tuesday, upper level ridging to our west will gradually shift eastward.
1221 AM EST Mon Nov 22 2021 High pressure will build into the area, offering dry weather and below normal temperatures for the start of the work week before moderating somewhat toward the Thanksgiving Day holiday.
scattered high clouds are expected to move through the area from the northwest with low temperatures ranging from the lower to middle 20s in the valleys and low lying areas to the upper 20s elsewhere.
1054 PM CST Sun Nov 21 2021 (This evening through Monday) The cold front has moved through Oklahoma and western north Texas, as cool, dry air continues to advect in with the gusty northerly winds behind the front. These winds will decrease overnight, and along with the clear skies should lead to stronger cooling tonight and widespread lows in the lower 30s/upper 20s. Highs are expected to be near normal values, with highs ranging from the lower 60s in the east to the upper 60s in the west.
1021 PM MST Sun Nov 21 2021 Water vapor shows upper trof over the Great Lakes with upper ridge covering much of the western CONUS. At the surface, high pressure is centered over the Dakotas. Upper ridge will build eastward into the Plains the next couple days, with both Monday and Tuesday being very mild across our area with highs in the 50s/60s. Cold front will move through late Tuesday as upper ridge shifts east and upper trof moves into the Rockies.
1002 PM CST Sun Nov 21 2021 (This evening through Monday) A cool night is on tap for west central Texas tonight in the wake of a cold front. Expect morning lows to fall into the mid 30s across the north to the lower 40s along the I-10 corridor.
135 AM MST Mon Nov 22 2021 Current surface map places trough/warm front across the western Dakotas. With upper level ridge over the Rockies shifts into the plains today, with robust low level warm advection. Ridge breaks down Tuesday as upper trough approaches the Rockies.
227 AM CST Mon Nov 22 2021 Winds diminished with sunset last evening and have slowly backed toward west-northwest with a little further backing toward west- southwest to occur as upper level ridging approaches from the west. An increase in thicknesses as well as a change in low level flow from a northerly component to a westerly one point to warmer temperatures today with a nod to the warmer end of guidance preferred given the amount of thickness increase expected. Little changes tonight as upper level ridging moves overhead. A light west-southwest surface flow and modest increase in high cloud from the southwest will not be enough to inhibit good radiational cooling and have thus trended toward the lower end of the guidance range. Upper ridging will kicked east of the FA by an elongated upper trough across the Pacific Coast tomorrow afternoon.
A high pressure system will favor frosty mornings and mild afternoons through Monday. A high pressure system will favor frosty mornings and mild afternoons through Monday. Mainly clear skies will persist across northwest California beneath an upper ridge through Monday afternoon. Temperatures will subsequently range from the low to mid 30s across many interior valleys Monday morning, followed by highs near 60 along the coast, and mid 60s to around 70 inland.
/issued 205 PM CST Sun Nov 21 2021/ A slug of pacific moisture will continue to shift southward this evening as an upper level trough axis progresses to the south. Upper level ridging will continue to progress eastward during the day on Monday. We will quickly return to weak surface lee troughing/cyclogenesis. With the ridge moving overhead, a significantly drier atmospheric column will take shape over the area along with large scale subsidence. Before that, an upper ridge will be centered over the FA Tuesday and surface winds will have a strong downslope component, resulting in afternoon temperatures in the 70s.
1123 PM CST Sun Nov 21 2021 The cold front has already moved through the area early this afternoon with the winds behind the front the main issue. Other than the winds, it looks pretty quiet through Monday as an area of high pressure drops out of the Dakotas into Missouri with the ridge axis extending north over the area.
233 AM EST Mon Nov 22 2021 Early this morning the much anticipated precipitation and cold front have begun to move across the FA. By this afternoon the cold front will be SE of the area leaving breezy NW winds in its wake. Tomorrow high pressure at the surface settles over the area trapping the cooler air in place. Behind the aforementioned cold front very dry air will also be advected into the area. 28 Tuesday night should be calm, clear, and cool with overnight temperatures hovering around freezing for a majority of the CWA.
Today Through Tuesday Night A cold front pushed SE through the state Sun evening. with drier cooler air filtering into the state as a result. Highs this Mon afternoon will be in the low 50s to low 60s. These SRLY winds will allow for slightly warmer temps on Tue afternoon. keeping Tue night lows warmer in the mid 30s to mid 40s.
The cold front that moved through yesterday has brought a cooler and drier air mass into the region which is a great descriptor of what Monday is going to look like. Looking at the broad picture, an upper level ridge will set up over the area during the day on Monday.
Cold front passes over terminals late morning into afternoon with VCSH along/ahead of it before winds shift NW'ly and become gusty with cigs lifting to VFR as drier air filters into area.
Tonight through Monday night Dry northwesterly upper flow across the Panhandles tonight with an upper ridge building in over the forecast area Monday and Monday night. Schneider Surface winds are expected to pick up into the 20 to 30 mph range on Tuesday as an upper level trough approaches from the west and a lee- side trough strengthens.
This line of convection was along and ahead of a cold front that will continue moving through the area tonight. Skies will clear from the northwest after midnight and a gusty northwest wind will bring in cooler and drier air that will result in a return to colder than normal temperatures by morning.
The surface cold front is crossing Middle TN at the moment, and still appears on track to move through our area between midnight and 4 am. CDG Chattanooga Airport, TN 53 30 52 29 56 / 0 0 0 0 0 Knoxville McGhee Tyson Airport, TN 50 26 47 27 55 / 10 0 0 0 0 Oak Ridge, TN 49 25 47 27 53 / 0 0 0 0 0 Tri Cities Airport, TN 47 21 43 22 53 / 10 0 0 0 0.
This line of convection was along and ahead of a cold front that will continue moving through the area tonight. Skies will clear from the northwest after midnight and a gusty northwest wind will bring in cooler and drier air that will result in a return to colder than normal temperatures by morning. This band of convection was ahead of a cold front that will move through the area tonight. Conditions will improve Monday in the wake of the cold front but a gusty nw wind to 20kts wl be common during the day.
Meanwhile, steep lapse rates behind the cold front have resulted in wind gusts as high as 45 kts (KISW) this afternoon. Clouds are quickly clearing out behind the snow as well due to high pressure building in from the west. The combination of clear skies and the CAA will result in lows in the teens for most locations, a little warmer in the low 20s near Lake Michigan. High pressure will lead to mostly sunny to partly cloudy skies and high temps will range from about 25 to 32 degrees, coldest in the Northwoods.
1045 PM MST Sun Nov 21 2021 An expansive ridge of high pressure aloft has begun to build over the western CONUS, and it is responsible for dry conditions and mostly clear skies. Lows tonight in the valleys will be similar to this morning, but the mountains should be warmer with the modifying air mass. Tomorrow will be the warmest day of the week as the ridge axis passes over the region.
220 AM EST Mon Nov 22 2021 Early this morning, colder air was flowing into central Indiana behind an exiting cold front. Aloft, an upper trough will exit the area today, allowing an upper ridge to gradually build in through Tuesday. At the surface, high pressure will move into the area from the west. Some mid and high clouds will spill across the upper ridge and into central Indiana at times through Tuesday. Warmer air will begin to return to the area on Tuesday on southerly winds.
A strong cold front has moved through the CWA today switching the winds around to the northwest and increasing all across the CWA. As the cold air continues to filter in, it is possible katabatic winds will set up along the north shore due to the higher terrain in that area. As mentioned before, the cold air will continue to filter in behind the cold front long after it has passed through. A short change in pattern comes Tuesday as an upper level ridge moves over Tuesday morning.
An upper ridge will remain in control through Monday for continued dry conditions and slightly above-normal temperatures. High pressure continues to build over the region this afternoon with warming temperatures expected Monday. The ridge axis will slide generally east of the forecast area by Monday evening, with a disturbance expected to move through the forecast area Monday night.
244 AM EST Mon Nov 22 2021 A cold front moves through the area today, bringing rain to an end and ushering in a colder air mass.
Monday and Monday night, a developing surface warm front in the Lee- Of-The-Rockies surface trof will promote westerly component boundary layer winds. High temperatures on Monday in the low level waa should end up near to above normal especially in and west of the James River valley. Upper level ridging will cross the region on Tuesday, bringing much above average temperatures to the area. Highs on Tuesday should range from the lower 50s, to the mid 60s. An upper level trough and surface cold front will slide across the region on Tuesday night, bring breezy northwesterly winds and cooler temperatures.
132 AM EST Mon Nov 22 2021 The strongest winds behind the cold front have subsided, but some gusts to around 25 mph will be possible through the remainder of the overnight hours.
124 AM EST Mon Nov 22 2021 A strong cold front will move across the region Monday.
Otherwise, cirrus and AC deck in the wake of the lower ceilings should rapidly clear from northwest to southeast through the morning hours.
Clear skies and breezy northwest winds persist this afternoon behind a cold front that moved through earlier this morning. Temperatures will drop quickly, but increasing clouds (especially in northeast parts of the area) should keep them from falling any lower than the low to mid 20s. Skies should mostly clear on Monday as the upper trough pushes to the east. Surface winds will return to the southwest (but remain fairly light) as ridging builds over the Rockies. Temperatures could reach the 60s for areas southwest of he tri-cities, but northeastern parts of the area may be stuck in the low to mid 50s, especially if clouds end up lingering in this area a bit longer. Tuesday will be even warmer as the ridge moves overhead, but this will also be accompanied by breezy south winds (gusts around 30 MPH).
Warmer & Windy Tuesday: Upper level ridging builds in rapidly from the west Tuesday. Taken as a whole, this implies significantly warmer weather. The southerly winds, noted earlier, should gust 25 to 35 mph in the afternoon and this will reduce the overall enjoyability of the warmer temperatures.
An upper ridge currently over the Pacific Northwest and British Columbia will slide east early in the work week, bringing dry weather to the region. Currently, clear skies in the northeast (northwest Minnesota) will result in a much cooler starting point tomorrow, and daytime highs will generally be in the mid 20s. Temperatures will range from near 40 across the northern valley to the low 50s across southeastern North Dakota.
305 AM EST Mon Nov 22 2021 High pressure building across the Eastern United States will provide chilly and dry weather today.
High pressure will bring dry and stable conditions to the area today. Southwesterly flow will increase Tuesday, before a mostly dry cold front crosses the area Tuesday night. Cooler temperatures will follow for the midweek period.
351 AM MST Mon Nov 22 2021 Current surface map places trough/warm front across the western Dakotas. With upper level ridge over the Rockies shifts into the plains today, with robust low level warm advection. Ridge breaks down Tuesday as upper trough approaches the Rockies.
The cold front that brought rain last night has now pushed east of the area this morning. Another reinforcing cold front will move through the Tennessee Valley later today bringing in a much colder airmass. As a result, temperatures this morning are in the low to mid 50s and will gradually fall throughout the day. Latest forecast trends have moderated this airmass a bit, but if winds subside and go calm this evening, expect temperatures to potentially drop down into the lower 20s. By Tuesday, upper level ridging to our west will gradually shift eastward.
Warmer temperatures return for Tuesday, only to be followed by another shot of cold air and lake effect snow for the end of the week. A ridge of high pressure over the area this morning has allowed winds to diminish significantly overnight, and now we have a cold day ahead with partly to mostly sunny skies. The cold airmass and ridge overhead will keep temperatures from warming very far despite the sunshine, so high temperatures will only be in the 20s to near 30 this afternoon.
As the upper ridge builds over the western US warmer air and some mid/high clouds will continue surging into the High Plains with highs today around 10 degrees warmer than yesterday. Ensemble guidance indicates the amplified progressive pattern will eventually settle into a large western ridge/eastern trof with a cutoff low breaking away and retrograding from the Four Corners to the Baja peninsula through the weekend. A cold front will move through Tuesday night as the upper ridge moves east and is replaced by a developing trof.
The cold air trough has quickly moved east and is now centered in the Great Lakes region and Ontario. This has allowed for WAA to build in and over the next 24 to 36 hours it will help push temperatures above freezing this afternoon. Tuesday will feature mostly sunny skies and gusty southerly winds that will support mixing in the lower column of the atmosphere and help bring some of the warmer temperatures to the surface. The winners will be along the Buffalo Ridge in western MN, where highs could push the mid to upper 50s Tuesday afternoon.
This makes high temp forecasting a bit tricky today, but that aside, still expecting highs to range from around 40 degrees east, to the low 50s over the western CWA. Leaned toward the higher end guidance for high temps given the synoptic setup and decent mixing.
553 AM EST Mon Nov 22 2021 A cold front moves through the area today, bringing rain to an end and ushering in a colder air mass.
(Today and tonight) A slow warming trend commences today with a return to southerly winds as lower level ridge weakens and slides south and east of the forecast area.
High pressure will begin to build upstream with dry air filtering in overnight. At the surface, high pressure builds into the eastern CONUS. Cooler conditions will exist behind the latest front with highs only managing into the 60s on Tue and U60s to L70s areawide by Wed afternoon again. Cooler mins Tue overnight with M40s to near 50 along/north of I-4 and generally the L-M50s elsewhere, except U50s to L60s immediate south Brevard/Treasure coasts and adjacent barrier islands. Clouds and prevailing IFR-MVFR will largely through midday, before a cold front crosses the area. Seas will become hazardous once again by tonight as a strong cold front moves through the region before slowly moving offshore overnight.
518 AM CST Mon Nov 22 2021 A slowly progressive longwave trof will continue to deepen across eastern NOAM today with northwest flow aloft across the region. Even though the high will be retreating, it will still exert an influence on cooling across the region with light winds and low dew points. This cold however will be short-lived as an upper level ridge shifts from the Plains into the MS Valley, and as low level WAA becomes established. This should translate into much warmer high temperatures on Tuesday.
An approaching weak winter storm and associated upper level low has shifted airflow to southerly and expect warmer afternoon temperatures today. The approach of this winter storm will also feature and increase in clouds tonight that will keep overnight lows warmer. The trough crosses through during the afternoon, spreading the morning snow from the central Idaho mountains eastward to the ID-WY border by afternoon. Tue wind will be elevated with the trough/frontal passage to the breezy category, 15 to 25 mph with higher gusts during the afternoon.
658 AM CST Mon Nov 22 2021 A ridge of high pressure currently centered over central KS will slowly shift southeast into the Ozarks today. For tonight into Tue, expect warm advection to increase across the region tonight, as the main mid level ridge gradually breaks down. This will lead to nice downslope flow, with above normal temperatures expected in the lower 60s returning to the area. Expecting another mild day on Wed for areas ahead of the front, (mainly east of the KS Turnpike) as compressional heating leads to max temperatures again into the lower 60s. Ketcham Expect minimal travel concerns for Thanksgiving day, as a ridge of high pressure builds into the region, with near seasonal temperatures, after a chilly morning for Thu morning.
A cold front passing over NV on Tuesday could bring a few light showers to the Jarbidge and Independence Range, otherwise dry across the region through Thanksgiving day. Ridging over the region today brings sunny skies and above normal temperatures. Lows tonight will trend a couple degrees warmer as well, with upper teens to mid 20s in most valley locations. Trough energy moves through the Pacific NW tonight into Tuesday, with the associated cold front passing over NV on Tuesday.
(Today and tonight) High pressure will reign supreme today and tonight with temperatures near the seasonable averages and relatively light winds.
312 AM CST Mon Nov 22 2021 (Issued 312 AM CST Mon Nov 22 2021) Today and Tonight: The area of low pressure that dragged the strong cold front across Wisconsin yesterday will continue to move eastward into Quebec this morning. As the low moves out of the Great Lakes Region, the winds will gradually stay to decrease. The colder temperatures will persist through tonight as high pressure begins to move into the state. If skies remain clear tonight then temperatures could fall into the low 20s to low teens across southern Wisconsin. Given the dry low and mid levels as well as high pressure moving in, there is moderate confidence that it will stay clear.
502 AM CST Mon Nov 22 2021 As of 09z Monday, widespread cirrus continues to stream in via northwest flow aloft, over western ridging aloft and aided by a robust jet streak. Warming commences with steadily developing WAA today as light winds turn southwesterly and strong upper ridging builds east. Lingering cirrus should become more diffuse as the ridge slides east, limiting warming some along and east of the I-29 corridor. Cooler further east today where highs will only reach the upper 30s to mid 40s, vs warmer near 50 degrees in central SD. Flattening upper ridging slides through the Central Plains on Tuesday, remaining in the top 10% of the NAEFS climatology.
The Northern Rockies will experience mostly fair weather today, as a ridge of high pressure strengthens over the region.
318 AM CST Mon Nov 22 2021 Early morning temperatures across the Midsouth range from the low 40s near the Kentucky state line in northwest Tennessee to the middle 50s near Aberdeen in northwest Mississippi.
As of 3 AM CST this morning, the cold front was exiting the offshore Gulf waters. Cooler and drier air mass in the wake of the front will decrease today's high temperatures, ranging from the upper 60s to lower 70s.
344 AM CST Mon Nov 22 2021 A slowly progressive longwave trof will continue to deepen across eastern NOAM today with northwest flow aloft across the region. Even though the high will be retreating, it will still exert an influence on cooling across the region with light winds and low dew points. This cold however will be short-lived as an upper level ridge shifts from the Plains into the MS Valley, and as low level WAA becomes established. This should translate into much warmer high temperatures on Tuesday.
Early this morning, colder air was flowing into central Indiana behind an exiting cold front. Aloft, an upper trough will exit the area today, allowing an upper ridge to gradually build in through Tuesday. At the surface, high pressure will move into the area from the west. Some mid and high clouds will spill across the upper ridge and into central Indiana at times through Tuesday. Warmer air will begin to return to the area on Tuesday on southerly winds.
The boundary is a cold front that will sweep eastward today and bring clouds and rain over Florida. The high resolution models have the front decaying as it transverses the Peninsula of Florida Today, as they keep the upper-level support well north of Florida. The northwest winds and cold front will slowly filter in a cool and dry air mass over the Keys, eroding the low-level moisture. Tuesday will be the coldest day and night this week, with daytime high temperatures near the low to middle 70s and overnight temperatures near the 60s. High pressure will continue to move away from the area today ahead of an approaching cold front. Light northeast breezes will back to the northwest and freshen today, as a strong cold front approaches the Florida Keys coastal waters.