Aikyam-Lab/Synoptic-Bench huggingface dataset:
600 AM CDT SUN SEP 4 2016 High pressure anchored over the Great Lakes will bring pleasant weather to central Illinois today. Light E/SE winds around the high will keep humidity values low, as afternoon high temperatures top out in the lower 80s. Another clear and cool night will be on tap for tonight, although with winds taking on more of a southerly component, low temperatures will be slightly warmer than in recent nights. with readings dropping into the lower 60s. Blocking pattern will remain in place across the central/eastern CONUS through mid-week, as remains of Hurricane Hermine meander off the Mid-Atlantic coast.
The leeside trough convergence zone near the Colorado border will become the focus for late afternoon surface-based (SB) convection.
High pressure will continue over the area tonight. High pressure will begin to build over/east of Arkansas tonight and through Sunday. Lows tomorrow night will be in the low 70s instead of the 60s.
In addition, strong warm air advection has begun in the return flow behind the high pressure moving off to the east. This low level warm air advection and approaching weak short wave may be enough to set off some scattered storms late tonight in the far western section of the forecast area where some instability will exist, although greatest instability will be mainly to the west of the forecast area in the short term period. The upper level trough with accompanying system wil enter western MN Sunday night and slowly move east across the forecast area Monday.
/issued 337 AM CDT SUN SEP 4 2016/ Upper trough extending down the West Coast with an upper ridge over the SE stretching west to Mexico. For a couple days the upper pattern will be mostly static but by midweek the trough will swing east riding over the top of the ridge and allowing it to stretch across the southern US border.
520 AM EDT SUN SEP 4 2016 High pressure over the Lower Great Lakes will continue to gradually shift eastward over the next couple of days.
a trough of low pressure moving inland through the western states will maintain stronger onshore flow with high temperatures 5 to 10 degrees below average.
139 AM EDT SUN SEP 4 2016 Fair weather expected to continue through this week, as dry high pressure dominates. Upper and surface circulations, associated with post tropical storm Hermine, will remain offshore the Mid Atlantic coast, while upper high pressure will remain centered to our west, providing a continued dry northerly flow aloft.
Deep upper low will be situated over the northern Rockies Sunday night and into Monday with a high pressure ridge in place over the middle Mississippi Valley. Multiple weak troughs will traverse the CWA as we will be situated within the gradient between these two features. A theta-e boundary will set up in the central portions of the CWA and will move back and forth as these troughs traverse the region.
501 AM EDT SUN SEP 4 2016 Upper level ridge to build in as Hermine departs. Next cold front approaches late in the week. Clear skies will continue as a high pressure remains in control of the weather conditions through tonight. with the upper trough over the western CONUS and the upper ridge parked over the deep south. but staying dry given the low RH in the mid and upper levels. Temperatures and humidity will be on the rise as high pressure anchors itself over the southern and eastern US.
/issued 231 PM CDT SAT SEP 3 2016/ As expected, we have seen much fewer showers today than in the past several days with afternoon convection mainly holding to the higher elevations of the Guadalupe and Davis Mountains.
312 AM CDT SUN SEP 4 2016 Blocking mid/upper level ridge of high pressure will continue to bring a rainfree holiday weekend to the region, and will likely hold on all the way through the short term. Though temperatures will be a few degrees warmer today, the humidity should be held at bay. The models both deterministic and ensembles want to bring a significant long wave trough through the region. The long wave trough has a surface reflection of a cold front that is expected to arrive this weekend. Other than patchy BCFG conditions in the 08-12Z time frames, a blocking ridge of high pressure will continue to bring generallyclear VFR conditions wind light se wind through the TAF period.
Large scale features include upper level trof over West coast with significant piece of energy now across Southern Nevada which will sweep across Colorado today. The large upper level trough will be set up to the west of the four corners region by Monday with SW flow aloft over the state.
1241 AM CDT SUN SEP 4 2016 206 PM CDT Quiet weather continuing today and through the period as high pressure remains in place. Another cool night expected with lows once again falling to the 50s for most locations, with slightly warmer temps around 80 on Sunday.
where some central areas may only make it to the low 80s. Progged moisture field and any precip chances should be more confined to the southern part of the state for Sunday as ridging amplifies behind a strengthening post-tropical Hermine off the Delmarva coast. Daytime highs Sunday should be slightly warmer /mid to upper 80s/ for most areas given less mid level moisture and associated cloud cover expected.
130 AM EDT SUN SEP 4 2016 Strong high pressure over the Great Lakes region will gradually pull eastward into southeast Canada through Labor Day.
654 AM EDT SUN SEP 4 2016 Upper level ridge to build in as Hermine departs. Next cold front approaches late in the week. Clear skies will continue as a high pressure remains in control of the weather conditions through tonight. with the upper trough over the western CONUS and the upper ridge parked over the deep south. but staying dry given the low RH in the mid and upper levels. Temperatures and humidity will be on the rise as high pressure anchors itself over the southern and eastern US.
After the abating of evening convection, tonight will find backside flow around Hermine teaming with high pressure building south over the U. Southeast to thin/fade/move the aforementioned banded moisture and trough. This is further supported by building high pressure aloft. Lingering frontal trough across the region will gradually shift southward and fade into early this week.
Cool morning temperatures will lead to afternoon readings reaching around 80 as high pressure loosens its grip slightly and the air mass continues to modify. This will lead to a repeat performance for Labor Day except for afternoon highs warming more firmly into the lower half of the 80s, all of this with low humidity and just a few shallow cumulus and wisps of cirrus. Current water vapor satellite imagery indicates a moderate surge of upper level height falls occuring along the west coast while the ridge continues to mature a rex block with Hermine from the Great Lakes eastward.
637 AM EDT SUN SEP 4 2016 Fair weather expected to continue through this week, as dry high pressure dominates. Upper and surface circulations, associated with post tropical storm Hermine, will remain offshore the Mid Atlantic coast, while upper high pressure will remain centered to our west, providing a continued dry northerly flow aloft.
The latest models, including high resolution CAMs, show several rounds of precip moving into the southern Montana as the Pacific trough continues to move into the northern Rockies. As the main trough moves into Idaho, models are showing a dry slot working into southeastern Montana. As such, have continued the lower PoPs, and QPF values over the southeastern zones. Temperatures still look to cool enough over the higher terrain to support snow in the high mountains. This still looks like the most accumulations will be on the high peaks. The lower elevations will still have some accumulations, but should be below advisory criteria. As the trough moves out of Montana during the day Monday, precip chances will decrease from east to the west. With less rainfall, temperatures will be a little bit warmer, but still be below normal.
/issued 202 AM CDT SUN SEP 4 2016/ Surface and upper-level ridge to maintain mostly clear skies today with light winds and high temperatures in the lower 90s across the region. Clouds to increase in coverage overnight into Monday as upper- ridge shifts east and southerly flow of moisture returns across the region. Low temperatures in the low 70s expected tonight. An enhanced sea-breeze to allow for a chance of afternoon showers and thunderstorms across the region on Monday afternoon with high temperatures forecast to climb into the lower 90s.
259 AM EDT SUN SEP 4 2016 A blocking ridge aloft will keep TS Hermine offshore.
157 AM EDT SUN SEP 4 2016 Upper level ridge to build in as Hermine departs. Next cold front approaches late in the week. Went a bit cooler than guidance tonight for low temperatures as this has been the trend the past few nights as well. temperatures at 925 and 850 are a couple of degrees warmer in the models tonight. with the upper trough over the western CONUS and the upper ridge parked over the deep south. but staying dry given the low RH in the mid and upper levels. Temperatures and humidity will be on the rise as high pressure anchors itself over the southern and eastern US.
1110 PM MDT SAT SEP 3 2016 Deep pac nw upper trough will remain in place in the period, supporting sw flow aloft. Convection will trend east and wane overnight with much cooler conds settling into the western 2/3, with 40s and 50s expected for lows there. Showers will linger over the far nw overnight given prox to the upper trough. Upper trof will be across the northern Rockies early in the week, then slowly move east across the northern plains through the remainder of the week. Drier weather is expected late in the week as zonal flow develops behind exiting trough.
730 AM EDT Tue Mar 21 2017 Aggressive push from surface ridging has allowed northerly winds to develop over the northern Detroit metro area this morning. For today, a strong arctic cold front will be blowing through the area reaching the Saginaw Valley near noon then through the Detroit Metro area around 4pm.
752 AM EDT Tue Mar 21 2017 An arctic cold front will drop south across the area late today and early tonight. High pressure will move southeast from the Canadian Plains across the area Wednesday night.
The pleasant conditions are a result of an area of high pressure that moved south over the Florida Peninsula and the Gulf of Mexico last night. a large upper low over eastern Canada will drift eastward while short wave energy pivots around the base of the upper low Wednesday afternoon.
Later this morning cigs will begin to drop as cloud development increases along a cold front draped across Middle Tennessee.
/issued 736 AM EDT Tue Mar 21 2017/ High pressure over the region will keep VFR conditions in the forecast for all TAF sites through the period. /issued 343 AM EDT Tue Mar 21 2017/ Today-Wednesday: High pressure centered from the Gulf of Mexico across the Central Florida peninsula will continue to dominate the weather as we head into mid week.
644 AM CDT Tue Mar 21 2017 Cold front had moved south into far northern Arkansas and Kentucky early this morning. The cold front will move farther south of the area tonight and high pressure will move into the area from the north. Britt High amplitude pattern will set up Wednesday with a longwave trof over the eastern U. and a ridge building over the Great Plains. The high will drift east-southeast through the day.
Very warm temperatures this afternoon will be followed by cooler temperatures behind the front. It will be hot this afternoon ahead of the strong cold front sinking southward. The front will push south of the area Wednesday with high pressure building in from the north. Guidance indicating temperatures about 15 degrees cooler on Wednesday with lingering cloudiness expected.
Winds will drop off after 22/00Z and low clouds will be quick to redevelop overnight with patchy fog also a good possibility ahead of an approaching cold front, which will be backdooring in from the northeast.
Temps will be tricky, as the highs for the day will depend greatly on where the heaviest and longest-lasting showers develop this morning, and where the earliest thunderstorms develop this afternoon. As the cold front moves through this afternoon into this evening, surface dewpoints will decrease significantly, and overnight lows will be cooler than in recent nights.
The cold front has stalled just northwest of I-44, but should begin moving southward later today. A cold front moving into the area this morning will allow for isolated to widely scattered thunderstorm development in the vicinity of the front for much of the TAF period. /Issued 322 AM CDT Tue Mar 21 2017/ Cold front currently located near the OK/KS state line this morning will continue a slow push southward today.
1107 AM EDT Tue Mar 21 2017 A weak cold front will exit the area this morning and provide a shower or two as it passes. A second, stronger cold front, will sweep through tonight, bringing much colder temperatures on Wednesday. Lingering morning light rain in the ridges will erode ahead of a cold-frontal surge oozing swd across the region this morning. Do not expect much widespread snow-shower activity in the cold-air advection late tonight/Wednesday morning, but scattered snow showers in the I-80 corridor are possible, with very-low probabilities of a snow shower in the higher elevations once the heart of the cold air reaches the ridges.
Most of the low-elevation temperatures are hovering around freezing with low clouds, fog, and drizzle/light snow ongoing.
1257 PM EDT Tue Mar 21 2017 An arctic cold front will drop south across the area late today and early tonight. High pressure will move southeast from the Canadian Plains across the area Wednesday night.
A cold front moving into the area this morning will allow for isolated to widely scattered thunderstorm development in the vicinity of the front for much of the TAF period. /Issued 322 AM CDT Tue Mar 21 2017/ Cold front currently located near the OK/KS state line this morning will continue a slow push southward today.
1042 AM EDT Tue Mar 21 2017 Look for seasonably mild conditions this afternoon ahead of a strong cold front. Clearing evident on visible sat this morning across west and north area of cwa with mild afternoon temperatures ahead of cold front. Secondary/arctic cold front will push southeast across the Lower Great Lakes this evening will traverse the area overnight into early Wednesday morning. 1040mb high pressure builds over the area Wed night, setting up a pretty cold night for this time of year.
1159 AM EDT Tue Mar 21 2017 A weak low pressure area will develop along a weak surface front over upstate South Carolina today. The low pressure and a cold front will move offshore tonight.
However, an outside chance for precip exists late tonight as short range models indicate a series of H5 vort maxima ejecting out of the Colorado Rockies into the high plains. Considering increasing cloud cover during the period, look for highs only up into the 50s(F) across central and portions of southwest Kansas this afternoon with the lower to mid 60s(F) still expected in south central Kansas and possibly extreme southwest Kansas along the Oklahoma border. Although mostly cloudy to overcast skies are expected to persist within an east to southeasterly upslope flow across the high plains Wednesday, generally dry conditions are forecast across extreme western Kansas as any areas of light rain/drizzle associated with H5 vort maxima moving across the area are expected to push off to the east by mid day.
A warm front is forecast to push northeast later today. Canadian high pressure has brought cooler temperatures over Northeast Montana. An upper ridge builds over Montana today and it will bring a warm front northeast into the state. This warm front will move east across the forecast area tonight and Wednesday morning. As surface temperatures cool and atmosphere warms aloft, sleet and freezing rain will be possible. The mixed precipitation moves to the east with the warm front Wednesday morning. Wednesday's highs will be 15 to 25 degrees warmer than today.
930 AM PDT Tue Mar 21 2017 Low pressure will move through the region through Wednesday night and bring precipitation at times.
Surface winds will once again become breezy later this morning into the afternoon due to high pressure and low pressure interaction. High temperatures today will be in upper 80s to lower 90s (except for the low to mid 80s near the coast) due to combination of abundant sunshine and a drier airmass in place.
Meanwhile, contd SWLY winds and plenty of sunshine wl result in another day of unseasonably warm temps with highs in the lower and mid 80s. Incrsg NELY winds behind the fnt wl usher much cooler air into AR later tngt and on Wed. Due to the shallow nature of the cooler airmass, expect a good amounts clouds on Wed with little in the way of rain chcs.
703 AM CDT Tue Mar 21 2017 A cold front boundary will continue to move southeast this morning, entrenching the Northland under a colder air mass today. 925 mb temperatures will drop between 5 and 15 degrees C below zero across the Northland this morning, which will lead to high temperatures today ranging from the lower 20s along the International Border into the lower 30s over our southern tier of counties. This area of high pressure, along with low-level ridging, should keep the region quiet through the day Wednesday as it advances across eastern Lake Superior Wednesday afternoon.
All is quiet now, but that will change through the day as the short wave and associated cold front moves into the Tennessee Valley this afternoon, and across the CWA tonight. Showers and thunderstorms will develop ahead of the cold front, pushing into north Georgia this afternoon and evening, diminishing as it pushes into central Georgia tonight. The cold front will push into south Georgia by Wednesday morning, however moisture will linger over the CWA keeping low end chances of showers across much of the CWA on Wednesday. Temperatures will remain above normal Wednesday although a little cooler than today as a low level east to northeast flow develops behind the front. 17 A front will cross the region Wednesday with strong high pressure building in from the north.
/issued 654 AM CDT Tue Mar 21 2017/ A cold front, currently located across northern Oklahoma, will push slowly southward today into this evening. /issued 414 AM CDT Tue Mar 21 2017/ For today, a cold front will continue a slow southward push across central and southern Oklahoma and western north Texas. Overall, a cooler day is in store for northern Oklahoma, while southern Oklahoma and north Texas will need help from the AC. Although a mid level ridge axis will be over the southern Plains Wednesday and Wednesday night, clouds and an easterly wind will result in near average temperatures for most of Oklahoma.
1001 AM EDT Tue Mar 21 2017 Area of high pressure will extend across the area today from the Gulf of Mexico eastward into the western Atlantic. Warm and dry conditions expected across the region, with the sea breeze keeping highs along the coast in the mid to upper 70s, while inland max temperatures will reach the low 80s. High pressure in place will maintain favorable boating conditions over the coastal waters today into tonight, with S/SE winds this morning becoming W/SW into the afternoon as the west coast sea breeze develops and moves inland.
951 AM EDT Tue Mar 21 2017 Aviation section updated High pressure is expected across the area for most of the rest of the week. Will have to keep an eye on this as the low level flow is favorable for this to advect into the northeast zones prior to sunrise.
525 AM MDT Tue Mar 21 2017 Upper ridge will rebuild across the region today resulting in dry conditions. The ridge axis shifts slightly east on Wednesday resulting in dry conditions.
Meanwhile, cold front is still on track to push though the area in the early afternoon, dropping temperatures and swinging winds around to the northeast. Cold front still on track to push through the area this afternoon. Nly winds today and tnt due to the passage of a cold front. The cold front currently entering nw WI will move across srn WI from late morning into the early afternoon. High temps will range from the lower to middle 40s.
But the activity on the southern end is expected to weaken almost completely by the time it gets to southeast Georgia where much drier air and stronger ridging will be in place.
715 AM EDT Tue Mar 21 2017 A weak cold front will exit the area this morning and provide a shower or two as it passes. A second, stronger cold front, will sweep through tonight, bringing much colder temperatures on Wednesday. Scattered showers are possible across the southeast this morning as a cold front crosses those locations. Maybe a scattered snow shower in the I-80 corridor early Wednesday morning, or a snow shower in the higher elevations once the heart of the cold air reaches the ridges.
Ceilings will gradually lower as a result of cold advection once the stalled cold front near the I-44 corridor starts to make southward progress again. The cold front has stalled just northwest of I-44, but should begin moving southward later today. A cold front moving into the area this morning will allow for isolated to widely scattered thunderstorm development in the vicinity of the front for much of the TAF period. /Issued 322 AM CDT Tue Mar 21 2017/ Cold front currently located near the OK/KS state line this morning will continue a slow push southward today.
Chattanooga Airport, TN 79 53 65 47 / 70 70 20 30 Knoxville McGhee Tyson Airport, TN 74 47 61 39 / 70 70 10 20 Oak Ridge, TN 74 47 62 43 / 70 70 10 20 Tri Cities Airport, TN 70 44 56 34 / 30 30 10 10.
617 AM CDT Tue Mar 21 2017 A surface cold front has sagged south across the region into northern Arkansas early this morning. The 850mb cold front is lagging behind the surface front and will spread south across the area today. With the front moving south through the area temperatures will range from the around 60 across central Missouri to the lower 70s across southern Missouri tonight. Cooler conditions will occur on Wednesday as highs in the 40s and 50s occur.
428 AM PDT Tue Mar 21 2017 A strong cold front will bring precipitation today as it moves through the region. Cooler than normal temperatures and unsettled conditions will then prevail through the middle of the week in a cooler and unstable airmass.
A cold frontal boundary will be ever so slowly slipping south across the Great Valley through the day.
Nly winds today and tnt due to the passage of a cold front. The cold front currently entering nw WI will move across srn WI from late morning into the early afternoon. High temps will range from the lower to middle 40s.
Secondary/arctic cold front pushing southeast across the Lower Great Lakes this evening will traverse the area overnight into early Wednesday morning. 1040mb high pressure builds over the area Wed night, setting up a pretty cold night for this time of year.
654 AM CDT Tue Mar 21 2017 A cold front, currently located across northern Oklahoma, will push slowly southward today into this evening. /issued 414 AM CDT Tue Mar 21 2017/ For today, a cold front will continue a slow southward push across central and southern Oklahoma and western north Texas. Overall, a cooler day is in store for northern Oklahoma, while southern Oklahoma and north Texas will need help from the AC. Although a mid level ridge axis will be over the southern Plains Wednesday and Wednesday night, clouds and an easterly wind will result in near average temperatures for most of Oklahoma.
736 AM EDT Tue Mar 21 2017 High pressure over the region will keep VFR conditions in the forecast for all TAF sites through the period. /issued 343 AM EDT Tue Mar 21 2017/ Today-Wednesday: High pressure centered from the Gulf of Mexico across the Central Florida peninsula will continue to dominate the weather as we head into mid week.