Aikyam-Lab/Synoptic-Bench huggingface dataset:
514 PM MDT Sat Oct 31 2020 The large scale synopic pattern shows an upper level trough moving east over the Plains late today while an upper level ridge sits over the West Coast, and a weak cut-off upper level low is south of the bight of Southern California. During the day Sunday, the upper level ridge suppressed across far southern TX and the Gulf of Mexico will build northwest between the digging trough over the eastern U. and the cut-off low off Southern California.
559 PM CDT Sat Oct 31 2020 Latest surface analysis is showing a warm front lifting north across the region with a cold front moving southeast across western Iowa and eastern Nebraska. Still expect the front to move southeast across the CWA tonight as upper trough currently seen on water vapor over the Upper Midwest will move into the western Great Lakes by early Sunday morning.
633 PM CDT Sat Oct 31 2020 A cold front will move through the state tonight and clear out the high clouds over the state at this time. High pressure will build into the state Sunday and bring gusty north and northwest winds.
As the high slides southeast, south to southeast winds will develop late tonight. Tomorrow, northwest flow will continue as a ridge begins to shift east over southeastern Montana. Carrothers High pressure ridging, along with gusty westerly downslope winds will prevail through the middle of the week.
A weak cold front has brought northerly winds to the area. The base of the trough is just north of the FA with mostly zonal flow aloft. Also, there is currently upper level ridge downstream over the Pacific Coast of Canada with a split flow trough just off the southern coast of California.
High pressure will bring dry conditions with a strong warming trend. A weak low pressure system will remain off the southern California coast as a ridge of high pressure aloft strengthens over the region.
600 PM CDT Sat Oct 31 2020 Strong northwest winds continue to gust into the 35 to 45 mph range this evening as a cold front brings a cool Canadian air mass into the region. Afternoon temperatures remain in the low to mid 40s; however, skies should be mostly clear, so the sunshine should take the edge off for those outside.
Tempreatures were mostly in the lower 80s with dewpoints in the mid 70s. Sprawling high pressure ridging along the New England and Mid Atlantic coast with a weaker extension into the southeast states is expected to retreat a bit overnight as a strong trough moves into the Ohio Valley and central Gulf states.
Cold front will move into northeast Oklahoma this evening, sweeping through the remainder of the area overnight. A cold front will slide south across the region late tonight, leading to a cooler close out to the weekend back on Standard Time.
Below this and more to the west, a cold front extended from NE Wisconsin to SW Oklahoma. Those boundaries should sweep across the Tennessee Valley during Sunday, bringing colder air and a good risk of freezing conditions tomorrow night. An otherwise cool night is expected with low temperatures in the upper 40s west to lower 50s east; definitely warmer than Sunday night. The cold front currently in place over the Plains will make a lot of headway in the next 12-18 hours, and is forecast to move across the TN Valley Sunday morning (mostly in the 15-18Z timeframe).
Because of the breezy overnight winds, have increased the lows for the Front a few degrees to near/just above freezing. However, temperatures in the Great Falls area have already fallen into the 30s, and winds will be a bit slower to become breezy there (after midnight), so have lowered lows to just below freezing. Coulston With an upper level ridge of high pressure building in over the region, expect afternoon temperatures to be above normal for the next several days.
Winds will generally remain east and then southeast through early afternoon tomorrow before a cold front moves through in the afternoon, shifting winds out of the north to northwest. A strong cold front will push through the region during the day tomorrow and should clear the southern waters by late tomorrow night.
Mostly light and variable winds will become northerly this evening into tonight as a cold front moves through the area. Winds are pretty stout on MOS guidance, following fairly well with the pressure rises behind the cold front, so have decided to shift out High Wind Watch to a High Wind Warning covering the same time frame outlined with the Watch (06z-18z Sun). Winds will decay heading into the evening Sunday with high pressure sliding into the central and southern plains.
652 PM CDT Sat Oct 31 2020 A trough is situated over the Plains with ridges on either side of it. The associated cold front stretches from the Texas Panhandle to north central Kansas and to southeast Nebraska. As mentioned in the previous discussion, the winds will diminish with the pre-frontal trough axis. Highlights: 1) Halloween evening: Temps in lower 60s at 6PM, clear skies and 10- 15 mph winds 2) Cooler on Sunday with highs in mid to upper 50s 3) Gradual warm up Halloween evening: It will be a fairly nice evening for any outdoor activities. Cold air advection will move in behind the cold front and drop temperatures on Sunday by roughly 10 degrees. High pressure is expected to move in as the trough moving through the Plains today tracks to the Great Lakes on Sunday.
606 PM CDT Sat Oct 31 2020 (This evening through Sunday) The cold front is moving into northwest Oklahoma this afternoon and will move southeast through the area this afternoon and evening. Temperatures behind the front will be roughly 10 degrees cooler than today on average.
732 PM EDT Sat Oct 31 2020 A strong cold front will move through late tonight and Sunday.
With an upper level ridge of high pressure building in over the region, expect afternoon temperatures to be above normal for the next several days.
852 PM CDT Sat Oct 31 2020 A cold front will move across Illinois tonight bringing gusty northwest winds and much cooler temperatures for Sunday. Cold front is still on track to move into the CWA late this evening and move across the state overnight. Breezy conditions should subside somewhat this evening ahead of an approaching cold front currently over southeast Minnesota into western Iowa.
A cold front will pick up speed as an associated upper level trough digs along the Canadian border. A cold front will pass through southern Missouri this evening and will shift winds to the northwest.
The primary concerns for this short term package are strong gradient winds Sunday and the high potential for a widespread freeze Sunday night. Other than a cold front late tonight, the short term will be dominated by high pressure. The advertised moisture-starved cold front will move rapidly southeast across the FA late tonight and should be exiting the southern Pennyrile by around daybreak. The front will usher in a considerably cooler air mass for the late weekend and into the early part of the new week.
935 PM EDT Sat Oct 31 2020 A cold front from the Upper Peninsula of Michigan to the Ozarks this evening will push east into the Ohio Valley by morning, increasing clouds and possibly generating a few sprinkles east of I-65. Quiet weather continues this afternoon as high pressure over the Mid- Atlantic influences the weather across the Ohio and Tennessee Valleys. Southerly return flow on the backside of the high as helped bump up temperatures into the upper 50s and low 60s under mostly clear skies. Temperatures will gradually fall in the early hours overnight, but then generally remain steady as a 40-45kt LLJ ramps up and clouds increase ahead of a cold front. A cold front will then approach and sweep through the area after sunrise tomorrow morning.
612 PM CDT Sat Oct 31 2020 A cold front will move across Illinois tonight bringing brisk northwest winds and much cooler temperatures for Sunday. Breezy conditions should subside somewhat this evening ahead of an approaching cold front currently over southeast Minnesota into western Iowa.
202 AM CST Sun Nov 1 2020 A cold front currently moving through central Illinois down into eastern Missouri will move through our area this morning. Winds will calm this evening as mixing ceases and high pressure builds in from the west.
1042 PM CDT Sat Oct 31 2020 (This evening through Sunday) The cold front is moving into northwest Oklahoma this afternoon and will move southeast through the area this afternoon and evening. Temperatures behind the front will be roughly 10 degrees cooler than today on average.
251 AM CST Sun Nov 1 2020 A cold front has moved through the vast majority of eastern Oklahoma and western Arkansas this morning. Temperatures this afternoon will be 5 to 10 degrees cooler than we saw Saturday afternoon. Below freezing temperatures are anticipated across a good chunk of the area overnight.
839 PM PDT Sat Oct 31 2020 Upper level ridging is in place over the Pacific Northwest and as a result there is little in the way of cloudiness over the region. Current temps were cooler in many, (but not all) cases than guidance suggested so made some tweaks where needed.
1019 PM CDT Sat Oct 31 2020 Strong northwest winds continue to gust into the 35 to 45 mph range this evening as a cold front brings a cool Canadian air mass into the region. Afternoon temperatures remain in the low to mid 40s; however, skies should be mostly clear, so the sunshine should take the edge off for those outside.
932 PM CDT Sat Oct 31 2020 Cold front moving into northeast OK at present with light north winds behind it. Not expecting much effect on sensible weather tonight, though it will result in breezy and slightly cooler conditions Sunday. Cold front will move into northeast Oklahoma this evening, sweeping through the remainder of the area overnight. A cold front will slide south across the region late tonight, leading to a cooler close out to the weekend back on Standard Time.
237 AM CST Sun Nov 1 2020 A dry cold front was working through the area early this morning. Plenty of sunshine will battle cold air advection at 850mb therefore temperatures will likely only warm into the lower to middle 50s today. Winds will pick up out of the northwest with gusts around 30mph likely from morning into the afternoon before diminishing tonight as high pressure builds in.
227 AM CST Sun Nov 1 2020 A cold front continues to push through the area this morning with temperatures falling slowly behind it. The High Wind Warning will continue until lunch time.
303 AM EST Sun Nov 1 2020 The latest guidance shows good agreement with an amplified pattern set up across the lower 48, with ridging stretching from southern Texas to the northwest states and trough in the eastern US. At the surface, high pressure will be centered to the southwest across the Lower Mississippi River Valley.
253 AM EST Sun Nov 1 2020 The latest guidance shows good agreement with an amplified pattern set up across the lower 48, with ridging stretching from southern Texas to the northwest states and trough in the eastern US. At the surface, high pressure will be centered to the southwest across the Lower Mississippi River Valley.
256 AM CST Sun Nov 1 2020 A broad upper level ridging pattern has filled in behind a weak cold front that pushed south through our FA yesterday.
155 AM MST Sun Nov 1 2020 High pressure will control the weather across our area through mid week with mild temperatures and precip free conditions.
With 20-30 kt NW winds and orographic lift along the terrain, some light snow showers or flurries will be possible along the higher terrain above 4-5k ft; however, with shallow moisture limited to lower than -10C, rime ice across the highest peaks seems more probable. BW Chattanooga Airport, TN 64 33 54 36 64 / 10 0 0 0 0 Knoxville McGhee Tyson Airport, TN 60 30 50 34 60 / 20 0 0 0 0 Oak Ridge, TN 60 31 51 34 60 / 20 0 0 0 0 Tri Cities Airport, TN 57 27 47 29 57 / 40 0 0 0 0 NC.
A cold front will pick up speed as an associated upper level trough digs along the Canadian border. Low-level wind shear conditions will persist into early Sunday morning behind a passing cold front.
Strong high pressure will slowly phase eastward on Sunday, centered over central Kansas at noon, and over eastern Kansas by 6 pm. Despite full sunshine, zero clouds and the return of south winds, temperatures will be noticeably cooler than Saturday's readings amid the recirculated continental polar airmass.
Tonight, as the ridge axis shifts off to the east, we'll see southwest winds develop, with rising temperatures expected after midnight out west. This push of warmer air will signal the beginning of what will be a spectacular week of weather for the first week of November.
A cold front is currently advancing southward through the region and should clear all area terminals by 09Z. Winds are pretty stout on MOS guidance, following fairly well with the pressure rises behind the cold front, so have decided to shift out High Wind Watch to a High Wind Warning covering the same time frame outlined with the Watch (06z-18z Sun). Winds will decay heading into the evening Sunday with high pressure sliding into the central and southern plains.
A dry northwest flow aloft will prevail with a upper ridge axis from the southern Rockies to the Pacific Northwest.
1038 PM MDT Sat Oct 31 2020 Winds are still in the process of slowly diminishing across the CWA in the wake of this mornings cold front. Sunday will be dry and a little warmer than today, as a high, surface and aloft, builds in from the west with highs in the 50s, except in the 60s where better mixing will occur from RKS to CPR to BYG.
205 AM CST Sun Nov 1 2020 A dry cold front is currently in the northwest portion of the CWA. The upper level trough helping things move along is very progressive. Models/ensembles have been very consistent on temperatures going below freezing tonight.
Northwest flow over the area on the east side of the building ridge will provide enough afternoon instability to keep breezy conditions in the forecast especially over the western foothills and valleys.
A cold front will move through the state overnight/Sunday morning.
Flat mid-level ridge over the Gulf is resulting in a nearly zonal, west to east flow aloft over the deep south. Sunday, an upper trof advances across the MS/OH River Valley and supports the passage of a strong cold front.
156 AM CST Sun Nov 1 2020 A ridge of high pressure over the Northern Plains tonight will sink southward across the area today bringing light winds and clear skies. As we move into the new work-week, a mid/upper ridge is progged to translate eastward across the central CONUS bringing rising heights/increasing thickness and rising temperatures to the region. Breezy conditions are anticipated ahead of the this system but as it moves east, we see another mid/upper ridge build into the area with above normal temperatures anticipated through the end of the work week. As we move into the weekend we begin to see a pattern change as a deep mid/upper trough builds over the western CONUS while a mid/upper ridge develops across the mid- Atlantic area.
Northeasterly winds gusting to 30 mph on the plains behind the cold front earlier today will continue through the afternoon before decreasing. Drier air in the subsident area behind the trough aloft is drying any trace of clouds in the area. This may lead to patchy fog on the plains however a developing surface lee trough may be enough to keep it away. Winds won't be quite as strong over the higher mountains tonight, however will still be in the 15 to 20 mph range above treeline with gusts to 30 as the jet on the backside of the trough moves east away from the area. 500 mb heights will rise tomorrow with decreasing northwest flow aloft as an upper ridge moves closer from the west. This will lead to warmer temperatures, clear skies and light winds.
234 AM CST Sun Nov 1 2020 Early morning analysis showed the cold front that passed through last evening sitting basically along the length of Lake Michigan to Chicago and southwestward into western Illinois. Otherwise, with the strong northwest winds will come much cooler air, as highs struggle to get out of the 30s today, with lows in the upper teens to mid 20s tonight.
A cold front from the Upper Peninsula of Michigan to the Ozarks this evening will push east into the Ohio Valley by morning, increasing clouds and possibly generating a few sprinkles east of I-65. Quiet weather continues this afternoon as high pressure over the Mid- Atlantic influences the weather across the Ohio and Tennessee Valleys. Southerly return flow on the backside of the high as helped bump up temperatures into the upper 50s and low 60s under mostly clear skies. Temperatures will gradually fall in the early hours overnight, but then generally remain steady as a 40-45kt LLJ ramps up and clouds increase ahead of a cold front. A cold front will then approach and sweep through the area after sunrise tomorrow morning.
1146 PM CDT Sat Oct 31 2020 A trough is situated over the Plains with ridges on either side of it. The associated cold front stretches from the Texas Panhandle to north central Kansas and to southeast Nebraska. As mentioned in the previous discussion, the winds will diminish with the pre-frontal trough axis. Highlights: 1) Halloween evening: Temps in lower 60s at 6PM, clear skies and 10- 15 mph winds 2) Cooler on Sunday with highs in mid to upper 50s 3) Gradual warm up Halloween evening: It will be a fairly nice evening for any outdoor activities. Cold air advection will move in behind the cold front and drop temperatures on Sunday by roughly 10 degrees. High pressure is expected to move in as the trough moving through the Plains today tracks to the Great Lakes on Sunday.
Farther to the northwest, a cold front currently located across southern IL/southwest MO, and northern AR will move through the forecast area later today and will push any residual clouds this morning off to the east. Overall, another cool and seasonable day is in store for the Tennessee Valley with high temperatures this afternoon in the low to mid 60s. In wake of the aforementioned cold front, a cold and dry airmass advects in from the northwest. Low temps overnight bottom out around or just below freezing and as a result, have upgraded the freeze watch to a warning with the latest forecast package for all of our counties.
We've had cooler air slip down into the plains overnight on the back side of this upper trough, which will make for a cooler day today with highs generally in the lower to mid 50s, which is a few degrees below normal for this time of year. So despite the cooler highs in the 50s, the full sunshine and the light wind will make it still feel pretty decent outside today.
1223 AM CDT Sun Nov 1 2020 Latest surface analysis is showing a warm front lifting north across the region with a cold front moving southeast across western Iowa and eastern Nebraska. Still expect the front to move southeast across the CWA tonight as upper trough currently seen on water vapor over the Upper Midwest will move into the western Great Lakes by early Sunday morning.
1006 PM PDT Sat Oct 31 2020 Updated AVIATION Discussion Upper level ridging is in place over the Pacific Northwest and as a result there is little in the way of cloudiness over the region. Current temps were cooler in many, (but not all) cases than guidance suggested so made some tweaks where needed.
258 AM CST Sun Nov 1 2020 The strong cold front that pushed through the area late last evening was stretched from lower Michigan across Indiana at 2 am. Temperatures have dropped to a range from the lower 30s northwest to mid 40s east, after having topped out in the 60s in most areas Saturday. Tonight, high pressure over plains migrates eastward across the area, setting the stage for a cold night. The clear skies, light winds and dry air will lead to one of the coldest nights of the season so far and have gone neat the low end of model guidance, from the lower 20s north to mid 20s south.
1145 PM CDT Sat Oct 31 2020 A cold front will move across Illinois tonight bringing gusty northwest winds and much cooler temperatures for Sunday. Cold front is still on track to move into the CWA late this evening and move across the state overnight. Breezy conditions should subside somewhat this evening ahead of an approaching cold front currently over southeast Minnesota into western Iowa.
Sunday, a strong cold frontal passage brings a mix of sun and some clouds. Flat mid-level ridge over the Gulf is resulting in a nearly zonal, west to east flow aloft over the deep south. Sunday, an upper trof advances across the MS/OH River Valley and supports the passage of a strong cold front.
A cold front will pass through the area later this morning, shifting winds out of the north. An upper level trough currently moving into the Central Plains will send a cold front into the area tomorrow morning. Highs tomorrow will be in the lower 70s in the north where the front arrives earlier.
/Issued 932 PM CDT Sat Oct 31 2020/ Cold front moving into northeast OK at present with light north winds behind it. Not expecting much effect on sensible weather tonight, though it will result in breezy and slightly cooler conditions Sunday. Cold front will move into northeast Oklahoma this evening, sweeping through the remainder of the area overnight. A cold front will slide south across the region late tonight, leading to a cooler close out to the weekend back on Standard Time.
1127 PM MDT Sat Oct 31 2020 The large scale synopic pattern shows an upper level trough moving east over the Plains late today while an upper level ridge sits over the West Coast, and a weak cut-off upper level low is south of the bight of Southern California. During the day Sunday, the upper level ridge suppressed across far southern TX and the Gulf of Mexico will build northwest between the digging trough over the eastern U. and the cut-off low off Southern California.
A cold front trailing from a potent storm system over the northern Great Lakes is currently extending SW from Chicago through St. Strong Canadian high pressure begins to build in behind the front tonight with gusty winds slackening off to a more steady NW wind into the late evening. Temperatures should drop off pretty quickly late evening, with some sites falling below freezing just after Midnight.
A strong cold front will result in gusty winds during the afternoon hours.
This ridge axis will slide sewd through this morning and toward the Dakotas/Minnesota border region around midday and this afternoon. A bit cooler conditions farther east are expected today with upper 30s over the Prairie Coteau and low to mid 40s elsewhere. After a cool'ish start Monday with overnight lows slightly below freezing, we should make a decent recovery by afternoon with highs in the 50s to near 60 in the east to the mid 60s, perhaps near 70 in the west.
629 AM EST Sun Nov 1 2020 A strong cold front will cross Central Pennsylvania during the early to mid afternoon hours accompanied by gusty rain showers and falling temperatures in the mid to late afternoon.
A cold front has pushed through the region, ushering in cooler and drier air upon northwest winds. This cooler period will be short-lived as the upper trough quickly shifts into the eastern CONUS and an expansive upper- level ridge builds across the western two-thirds of the CONUS early this week. The upper ridge will flatten out but spread across much of the CONUS, keeping the polar jet well north into Canada for much of the week.
and Monday Strong low level cold advection will destabilize the low levels of the atmosphere and help mix down winds of 35 to 45 knots at 925 mb.
Rest of today-Monday: Upper ridge builds east into the Northern Plains and a dry/stable air mass will support dry conditions and much quieter weather. Cooler post frontal air mass is still in place today, so we have one more day of below average temperatures (30s and 40s) before the advertised warm-up starts Monday. As the upper level flow turns more zonal,and 850mb temperatures continue to rise into the teens, expect a quiet and warmer week ahead for the work week.
512 AM CST Sun Nov 1 2020 Quiet weather is expected to persist through Monday afternoon as the region sits under northwest flow aloft behind the departing trough quickly moving over the Great Lakes.