Aikyam-Lab/Synoptic-Bench huggingface dataset:
413 AM MDT Thu Sep 7 2017 High pressure will remain in place over North Central and Southwest Montana through Thursday, which will lead to warming temperatures, mostly sunny skies, and continued very dry conditions.
Clouds will decrease from north to south and drier air featuring dewpoints in the low to mid 50s will invade most of the area with the exception of the FL Big Bend counties where above 60 dewpoints will prevail.
239 AM PDT Thu Sep 7 2017 Low pressure off the California coast will continue to bring substantial moisture to the region resulting in daily thunderstorm chances through the end of the week. With low pressure sitting off the coast over the next few days the chances for thunderstorms chances will continue each afternoon and evening. Friday will be a bit different as the negatively tilted trough edges further east with upper level diffluence with the jet positioned right over the Sierra and western Nevada. As we have seen in the past few days, the upper level low will be the main determining factor in the thunderstorm potential.
358 AM MDT Thu Sep 7 2017 At 3 am, a few light showers were noted over the CO/NM border across the higher terrain. Temps across the area were pretty homogeneous, with 50s across the plains and valleys and 40s over most of the higher terrain. Otherwise expect partly cloudy skies with temps cooling into the 50s across the plains and 30s and 40s across the higher terrain.
The short term period will be quiet with just some low chances for rain showers across the northeastern portions of central Indiana this afternoon due to an upper low over the Great Lakes Region. Subsidence, however, will quickly strengthen over the region ahead of a large ridge of high pressure by this evening.
Upper ridge will gradually shift east today allowing southerly flow aloft to increase in Oregon today, and in Idaho beginning tonight.
Clear to partly cloudy skies and ll dry air should allow for another chilly night, particularly in the low lying areas. On Thursday, winds stay on the light side as a warmer air mass moves into the region. The models show a sharp 50H ridge over the western U. with a large low pressure trough over the eastern U. On the eastern side of the 50H ridge will be a short wave trough over eastern MT 00Z Friday.
559 AM CDT Thu Sep 7 2017 A deep upper level trof extended from Hudson Bay southward through Ohio and eastern KY/TN. This trof will slowly start to pull northeast during today but still be close enough to central IL to bring more diurnally driven cumulus clouds by late morning and afternoon. The strong upper level trof lifts into the eastern Great Lakes Friday with 500 mb heights rising to 582-584 dm over central IL by sunset Fri and 850 mb temps rising to around 12C.
145 AM EDT Thu Sep 7 2017 High pressure with drier and cooler weather for the remainder of the week. There are a few minuscule complications in the short term forecast with the upper level trough axis taking its time traversing the northeastern CONUS, allowing sheared out vorticity maxima to track through the northern CWA boundary. Also adding to the lift is a weak reinforcing cold front.
309 AM CDT Thu Sep 7 2017 High pressure continues to build southward across the region early this morning, with mostly clear skies and unseasonably cool temperatures. The northerly surface flow, combined with northwest flow aloft, will continue the influx of cooler and drier air, so highs are expected to top out in the upper 70s, despite plentiful sunshine. The axis of a strong upper trough will lift northeast of the region by Friday, though weak northwest flow will persist across the local area.
A steep high pressure ridge is to our west, the axis of which extends from northern ID clear into the Big Bend. As the ridge axis pushes further east tomorrow, storm chances look to be even less likely. We will continue to trend dry through the weekend and into the early workweek as the ridge expands and contracts over the region.
This and the upper level ridge over the western U. moving into the Plains, will result in slightly warmer temperatures than yesterday.
Cold front that passed through yesterday will slowly trek south. Clouds will decrease from north to south and drier air featuring dewpoints in the low to mid 50s will invade most of the area with the exception of the FL Big Bend counties where above 60 dewpoints will prevail.
A trough will be pushing south across Wisconsin today into tonight. Late tonight, there is potential for some MVFR clouds to develop in the wake of trough. An associated 850 mb trough/cold front will drift south across the area tonight. A weak thermal ridge just ahead of it will bring a period of warm air advection and frontogenesis.
The high center wl gradually shift E/SEWD over the next 24 to 48 hours.
There may be enough cloud cover to keep temps from climbing too much higher than the low 70s, so dropped temps a bit for this afternoon.
338 AM MDT Thu Sep 7 2017 Another day of warm and dry conditions will persist under an amplified ridge today. The ridge axis shifts off to the east on Friday putting the Northern Rockies in southwesterly upper level flow.
Rain chances will slowly wane this evening as the trof finally exits the region and ridging makes its way over the western Great Lakes region. Lows tonight will range from the lower to middle 30s across the north, with lows around 40 across the south. Despite the frost formation will hold off on any headlines with this issuance as a slower progression of the system would keep clouds in a bit longer and therefore keep temperatures a bit warmer. Mostly sunny skies and warmer temperatures will be had for the end of the work week as high pressure builds in across the western Great Lakes region. Highs on Friday are expected to be in the lower to middle 60s.
336 AM CDT Thu Sep 7 2017 A broad upper level trough across the east central US this morning will lift northeast into New England by 12Z FRI. A minor H5 trough will dig southeast across western KS. The better ascent ahead of the trough and stronger isentropic lift will remain across west central KS where a few showers and isolated thunderstorms may develop, but these storms will move southeast and will remain well west and southwest of the CWA.
330 AM CDT Thu Sep 7 2017 A deep upper level trof extended from Hudson Bay southward through Ohio and eastern KY/TN. This trof will slowly start to pull northeast during today but still be close enough to central IL to bring more diurnally driven cumulus clouds by late morning and afternoon. The strong upper level trof lifts into the eastern Great Lakes Friday with 500 mb heights rising to 582-584 dm over central IL by sunset Fri and 850 mb temps rising to around 12C.
To the west, a narrow mid to upper level ridge axis extended from just south of the Four Corners ESE into TX. At the SFC, a large area of high pressure prevailed across the PLains into the Mid MS River Valley, while to the south, Hurricane Katia was meandering over the Bay of Campeche. A pleasant, and dare I say a bit cool, morning unfolding across the region, with temperatures mostly in the lower/mid 60s, though there are a few upper 50s noted as well. Meanwhile, the ridge to our west is forecast to amplify, which will send Katia on a SW track into Mexico.
345 AM CDT Thu Sep 7 2017 Upper flow pattern across NOAM remains highly amplified, with a broad eastern CONUS trough and ridge over the Intermountain West. Potential to be a bit cooler (mid 60s) in some northern areas if earlier arrival of thicker mid/high clouds. Elsewhere, resulting light southerly flow and clouds also support a warmer night, and generally have lows area-wide in the upper 40s to lower 50s. Models appear to be trending more aggressive on mid/level rh and slower, thus if any delta on lows tonight would likely be warmer by a few degrees mainly I-80 corridor N/E. However, the cooler than normal temperatures and dry conditions will continue.
644 AM EDT Thu Sep 7 2017 Additional disturbances will rotate about the base of the highly amplified upper level trough today, keeping afternoon and early evening shower chances in the forecast. Drier and warmer conditions will return this weekend as high pressure settles into the Great Lakes region. Even though the pronounced upper level trough that had dug into the Ohio Valley over past several days will be modulating eastward, several disturbances rotating around the western periphery of the trough axis will again provide scattered shower activity in the afternoon/evening.
Deep upper level trough axis extends from west of James Bay to just east of Michigan into Ohio. pronounced upper level trough axis will slowly pivot east away from Michigan. just as another upper level trough digs southward out of Ontario into Northern Michigan. Low temps tonight will cool back into the lower 40s.
Southerly winds return to Eastern Oklahoma and Northwest Arkansas today as high pressure begins to push eastward.
314 AM EDT Thu Sep 7 2017 High pressure with dry and cool weather for the remainder of the week. Feeling a lot like Autumn across the region as cool high pressure continues to build overhead. Although high pressure is at the surface we still will have an upper trough swinging through, and like yesterday an isolated diurnal shower or two will be possible. Lows at night will be around 50 degrees lowlands ranging to the lower 40s northeast mountains.
237 AM EDT Thu Sep 7 2017 Clear and cool conditions prevailed early this morning across the lower Ohio Valley. A surface analysis revealed high pressure sprawled across the central US, while aloft, deep upper troughing encompassed much of the Great Lakes region. For today, plan on another seasonably cool day with mostly sunny skies and light winds as high pressure settles over the TN Valley.
139 AM CDT Thu Sep 7 2017 255 PM CDT Large upper level trough still situated across the region this afternoon and in this pattern, cloud shield has really expanded. Rodriguez 236 PM CDT The deep upper trough will gradually depart through Friday, with just a slight chance of a few lingering isolated showers Thursday evening in far northeast Illinois and near the lake in mainly Porter County Indiana. While mid and upper ridging will build over the area into the weekend, the moderation in temperatures through mid next work week will be somewhat gradual.
Upper level trough will remain over the eastern US but heights will gradually rise over our area.
An associated 850 mb trough/cold front will drift south across the area tonight. A weak thermal ridge just ahead of it will bring a period of warm air advection and frontogenesis.
653 AM EDT Thu Sep 7 2017 Low pressure will ride north along the stalled frontal boundary this morning. This low moves into New Brunswick this afternoon, moving the front south. An upper level trough of low pressure moves across the region this weekend.
450 AM MDT Thu Sep 7 2017 A stretching deformation axis between two anticyclonic circulation centers within a ridge of high pressure, one over Idaho and the other over New Mexico, has allowed for increasing cloud cover and some light showers to continue through the early morning hours across southeast Utah and southwest Colorado. The trough of low pressure will move onto the west coast by Friday with the ridge of high pressure shifting eastward, allowing for a more direct southerly tap of moisture. The start of the weekend will see the upper level ridge axis move slightly to the southeast as a Pacific trough amplifies off the west coast.
1205 AM MDT Thu Sep 7 2017 The negatively tilted upper ridge currently situated over the intermountain west will slowly shift east the next couple of days. As the ridge builds, may also see a return of wildfire smoke from west to east although latest HRRR model guidance projects the smoke to be of relatively low concentration near the surface.
239 AM CDT Thu Sep 7 2017 Large scale pattern remains pretty much the same as it has been the last several days consisting of a highly anomalous ridge stretching northward from the western CONUS well into western Canada. deep longwave trof prevails over the eastern CONUS. broad high pressure was in control over the Central Plains. Models are in quite good agreement depicting the large-scale pattern altering from highly amplified to a high pressure dome enveloping the majority of the CONUS with the westerlies generally riding along the U.
High pressure builds in for tonight continuing the clearing trend. Mostly sunny to partly cloudy skies are forecast for Friday with high pressure in place.
311 AM EDT Thu Sep 7 2017 High pressure will build into the region from the west and northwest tonight through the upcoming weekend.
338 AM CDT Thu Sep 7 2017 North northwest winds aloft will continue into today and tonight as sharp upper level ridging continues to expand across the central US. Weak low pressure drops south along the Minnesota and North Dakota border late tonight, with surface winds turning southeast to east overnight.
642 AM EDT Thu Sep 7 2017 High pressure will gradually build across the region in the wake of the a cold front today providing for drying conditions.
332 AM CDT Thu Sep 7 2017 Today through Tonight: Prior to dawn an anomalous high pressure airmass was bringing in some cooler readings in the lower to upper 50s. The strong fall like amplified trough will begin lifting to the east. The anomalous airmass will continue to bring a milder day and a cooler night to the region. Under north winds highs will be in the upper 70s to the lower 80s. Lows for tonight will range from the lower to middle 50s with some good radiational cooling.
Issued by National Weather Service Blacksburg VA 155 AM EDT Thu Sep 7 2017 A cold front will push well east of the region overnight allowing drier air to swing in ahead of high pressure building in from the west.
658 AM EDT Thu Sep 7 2017 High pressure with dry and cool weather for the remainder of the week. Feeling a lot like Autumn across the region as cool high pressure continues to build overhead. Although high pressure is at the surface we still will have an upper trough swinging through, and like yesterday an isolated diurnal shower or two will be possible. Lows at night will be around 50 degrees lowlands ranging to the lower 40s northeast mountains.
436 AM CDT Thu Sep 7 2017 A very amplified trough for this time of the year is present over the Great Lakes. This trough will continue to swing toward the Eastern seaboard today. High pressure will then build in from Ontario this evening into Friday with mostly clear skies. The benign weather regime will be a result of a broad high pressure in place at the surface. Temperature-wise, we do look to gradually moderate into the weekend as upper ridging builds in from the west behind the eastern CONUS trough.
Concur with the ECMWF/GFS/NAM deterministic solutions which predict the long wave upper trough, currently over the ERN CONUS, to lift NEWD during the period while an upper ridge builds over the SCNTRL CONUS including the CWA/MSA.
310 AM CDT Thu Sep 7 2017 Upper ridge extends from TX to ID as an upper trough presses it from the west.
The lower levels in the atmosphere are dry and there is decent capping around in the afternoon hours. Friday onward, in the upper levels high pressure will reside over the forecast area and should maintain a dry forecast through the next several days.
108 AM EDT Thu Sep 7 2017 High pressure will build into the region from the west and northwest tonight through the upcoming weekend.
306 AM EDT Thu Sep 7 2017 High pressure will gradually build across the region in the wake of the a cold front today providing for drying conditions.
510 AM EDT Thu Sep 7 2017 Cool weather and shower chances can be expected until high pressure builds this weekend. Otherwise, little overall change was needed for todays forecast as cold temperature and more convection chances will plague the region as the longwave trough axis slides eastward. Otherwise, VFR is expected through the TAF period with altocu and stratocu under upper troughing. Brief restrictions are possible through Fri under an upper trough.
An upper level low moving across our area could result in a few showers or a possible thunderstorm today. An upper level low currently over the Bay Area will give a slight chance of showers or maybe a thunderstorm to the area through the day. Cooler temperatures are expected today as cooler air aloft filters in with high temps progged to be 5 to 10 degrees cooler in some areas. The upper trough is forecast to then remain off the west coast for the next several days. A warming trend is indicated for later in the week as the upper low shifts to the south and high pressure aloft noses in from the west.
SHORT TERM (Now through Friday): The most recent surface analysis from the Weather Prediction Center places a cold front across the Gulf of Mexico from northern Florida to the offshore waters of Tamaulipas in Mexico. This will result in increasing cloudiness during this time period with isolated showers over the Lower Texas coastal waters and immediate three coastal counties tonight, and then along and east of the Interstate 69C corridor on Friday. The passage of the aforementioned cold front and increasing cloudiness are expected to hold temperatures at near normal values through the entire short term forecast period.
452 AM CDT Thu Sep 7 2017 Not a lot of issues with the forecast for SE TX these next several days as the much cooler/drier airmass settles over the region. The upper level ridging building in from the west will help keep a dry NW/N flow aloft through much of the forecast period.
High pressure is now to our south, and we are seeing mainly light southerly flow. There is some humidity pooling along the front so humidity will increase in the post frontal airmass with high pressure moving in behind the front.
251 AM EDT Thu Sep 7 2017 High pressure with dry and cool weather for the remainder of the week. Feeling a lot like Autumn across the region as cool high pressure continues to build overhead. Although high pressure is at the surface we still will have an upper trough swinging through, and like yesterday an isolated diurnal shower or two will be possible. There are a few minuscule complications in the short term forecast with the upper level trough axis taking its time traversing the northeastern CONUS, allowing sheared out vorticity maxima to track through the northern CWA boundary. Also adding to the lift is a weak reinforcing cold front.
330 AM EDT Thu Sep 7 2017 The morning surface analysis indicates high pressure is centered across the large area of the central portion of the lower 48. That said, a upper level trough axis is likely running generally north to south across eastern Kentucky, as it has become more neutrally tilted. This area of high pressure will continue to push east through the remainder of the short term period, and this will lead to a benign period of weather across the Bluegrass State. The previously mentioned upper level trough will pull northeast today and only help to slightly modify the 850 MB temps that will remain in the single digits. Another cooler day will be on tap for Friday, However, not as cool given modifying airmass, with temperatures topping out in the lower 70s and high progressing east.
As a result, we should have another dry day with a bit warmer temperatures compared to yesterday, due to less cloud cover. Still looks like a few thunderstorms could develop under the right entrance of the upper level along the Laramie Range near the lee side trof, but instability may be a bit less compared to yesterday.
A high amplitude mid to upper level ridge will maintain an axis from the Nrn Rockies to the TX coast and keep Hurricane Katia pinned over the Srn Gulf. The temporary drying will probably lead to the lowest min temps of the week for areas along and east of the I-35 corridor tonight.
A strong ridge over the western U. and a long wave trough well offshore will both move slowly east through Friday. The trough well offshore will weaken and deepen several times as it ingests and ejects short waves toward Washington state and British Columbia. especially over the Cascades and over the higher terrain east of the Cascades.
Plenty of clear skies and sun as as return flow sets up out of Great Lakes high pressure system.
High pressure centered over the MO/AR line will drift southeast and we will pick up a light west to wsw breeze and slightly warmer temperatures today. The high amplitude/slow/stagnant upper level pattern will continue. In general we will see rising heights/high pressure aloft with warmer temperatures into the weekend.
202 AM MDT Thu Sep 7 2017 Latest upper air analysis shows the ridge continuing to be pushed southward. Tonight a weak upper level short wave trough will move over the forecast area from the west. Friday night an upper level short wave trough will develop northwest of the forecast area. Models have shifted the short wave trough and nose of the low level jet to the west compared to last night.
/issued 811 PM EDT Wed Sep 6 2017/ Water vapor satellite imagery is showing a weak frontal boundary moving into the Florida Peninsula ahead of an amplified upper level trough. This boundary is on track to bring in slightly drier and cooler conditions to the Nature Coast over the next couple of days. Otherwise, winds will slowly increase Thursday as high pressure builds in behind the front.
NW flow aloft continues with the upper trof remaining east of the area. Have therefore trended temps today at or just below the warmer guidance. With light winds tonight, have trended aob the cooler guidance for tonight.
332 AM EDT Thu Sep 7 2017 High pressure will build into the region from the west and northwest tonight through the upcoming weekend.
353 AM EDT Thu Sep 7 2017 Low pressure will ride north along the stalled frontal boundary this morning. This low moves into New Brunswick this afternoon, moving the front south. An upper level trough of low pressure moves across the region this weekend.
Highly amplified upper pattern continues across much North America early this morning, featuring anomalously deep upper troughing over eastern Canada and the CONUS while impressive meridional ridging continues over the western states. Associated with that feature is a surface wave, complete with a warm front dropping southeast through southern Manitoba, and forecast to slide farther southeast along the Mississippi River into our area later today. Farther west, behind the warm front, things could actually get a bit sneaky warm, with 925mb temps spiking toward 18C or so during peak heating. Big changes sweep westward this evening and tonight with low level ridging dropping through the Great lakes shoving a backdoor cold front through the region and really drying out the atmosphere.
A trough of low pressure will continue to develop across eastern Colorado today as an upper level disturbance approaches from the northwest. A weak surface boundary/warm front will also be lifting northeast across western Kansas during the day.
Rest of the week: Afternoon thunderstorm activity is expected through the end of the week as ridge remains in control of the weather pattern.
At the surface, high pressure currently over the area will move off to the east today, allowing winds to become light southeasterly. It will be slightly warmer with afternoon highs mainly in the mid 80s.
Otherwise light and variable winds are expected to become southerly early Thursday morning with mostly clear skies all day under the influence of high pressure. The upper low pressure trough was over the eastern US, with a strong upper northwest flow into AR. This has allowed the Canadian high pressure to filter this far south. The upper low pressure trough will move to the eastern US and is expected to steer Hur. Tonight Through Friday The high pressure ridge will dominate the weather pattern over the next several days, and bring mostly sunny skies, mostly clear skies and mild temperatures. Highs will start in the 70s, then by Friday mostly in the lower 80s.