Aikyam-Lab/Synoptic-Bench huggingface dataset:
1046 AM EDT Mon May 15 2017 High pressure Monday and Tuesday. A cold front will push slowly southward early this morning before washing out over southwestern VA as high pressure builds into the area. High pressure will gradually slide eastward tonight.
9 micron imagery shows a deep low digging into the SW CONUS with downstream ridging across much of the central CONUS.
A persistence forecast wins again as an upper level ridge building overhead maintains mostly clear skies, save for a few fair weather cu that are likely to develop along and ahead of the afternoon sea breeze.
Mid level trough axis will continue east, pushing into the Great Lakes Region today. Low pressure develops over Western South Dakota late afternoon with a southward extending lee trough into Colorado. Winds will briefly turn southerly Saturday evening before veering to northwest behind a weak cold front early on Sunday. High pressure and dry conditions will remain over the region on Sunday. High temperatures will drop slightly from Saturday into the low to upper 60s.
356 PM CDT Sat Oct 7 2017 We have had some light showers and plenty of clouds today as the Midwest upper level trough moves eastward and Hurricane Nate approaches the northcentral Gulf Coast. By Sunday, the trough will move away while the decaying Nate will accelerate and curve quickly to the northeast.
300 PM EDT Sat Oct 7 2017 A weak cold front will bring showers to the region tonight and early Sunday.
326 PM CDT Sat Oct 7 2017 At 3 PM, a low pressure area was located between Waukon, IA and Caledonia, MN. Thunderstorms were occurring near and ahead of this low pressure area. In the wake of this low pressure area, the deformation band will move quickly east across the area. On Sunday afternoon and night, a Canadian cold front will move southeast through the region.
The potential for up to 60 mph wind will exist across the highest elevations of the TN/NC mountains.
1201 PM CDT Sat Oct 7 2017 /18Z TAFS/ A cold front is currently moving across the Interstate 10 corridor and will be south of the TAF sites by 18z. /issued 635 AM CDT Sat Oct 7 2017/ /12Z TAFS/ Expect brief MVFR ceilings for a couple hours this morning in the vicinity of a cold front. A prefrontal trough has shifted winds to the west and northwest over most of the area. /issued 413 AM CDT Sat Oct 7 2017/ (Today and Tonight) A cold front is making rapid southward progress across the area early this morning, and has reached from Abilene to south of Robert Lee at 3 am. Highs today in the lower to mid 80s, with lows tonight dropping into the 50s with clear skies.
403 PM CDT Sat Oct 7 2017 A cold frontal passage with an ongoing wind advisory into early this evening is the main highlight of the short term period. Cold front stretched from southern Manitoba into the Turtle Mountains and across central/western ND. Low level instability/steep lapse rates will continue through the evening as a cold pocket of air at 850mb, reflection the cold front aloft, begins to push across northwest ND. Cooler Sunday with highs in the 50s and northwest winds 10 to 20 mph. There could be a brief shower or two in the north cental and northwest during the afternoon, along and ahead of a secondary cold front.
sunny skies prevail with the area under high pressure. high pressure shifting ESE as a weak lee-side trough comes off the eastern Rockies. This trough/boundary will sink SE across the CWA during the afternoon hrs Sunday. for the first round of what will be cooler/colder air advecting into the entire CWA.
317 PM CDT Sat Oct 7 2017 A cold front has moved through the forecast area, advecting much drier and cooler air into the region. Clouds continue to clear from west to east, and a pleasant Saturday afternoon will yield a classic fall night with lows falling into the lower to middle 50s by sunrise Sunday.
The main upper trough remains on track to move over north-central Idaho and western Montana overnight, bringing precipitation and lowering snow levels. Snow accumulations are likely for Dixie, the Highway 12 corridor over Lolo Pass, and Highway 93 over Lost Trail Pass. The trough will begin to exit during Sunday afternoon, but it will be unstable enough for numerous showers and even a few thunderstorms.
upper trough. One more mild to warm day expected area-wide on Sunday, as main cold front will remain north of the region until evening. Surface lee trough Sunday afternoon will remain fairly close to I-25, which may limit mixing and hold down temps slightly on the plains, with maxes a couple degf cooler than today east of I-25.
312 PM CDT Sat Oct 7 2017 20Z/3 pm surface map shows 993 mb low pressure over west central WI with a cold front thru far eastern IA into far western IL and eastern MO. The cold front is forecast to quickly sweep eastward across central and eastern IL during mid and late afternoon, reaching the IN border by sunset. Cooler lows in the low to mid 50s overnight, mildest in southeast IL.
First, showers and thunderstorms will be possible later today and this evening as a cold front moves through central Indiana.
Our streams are at base flow during what is the lowest water level of the annual cycle.
Early this morning an upper level trough was moving east across central NE and central KS, and will lift northeast into the Great Lakes States by Tonight. There may be scattered rainshowers northwest of the front across northeast and east central KS through the mid morning hours but as the H5 trough lifts northeast of the plains by this afternoon any lingering rainshowers should push northeast into MO and IA by the late morning hours. Isentropic downglide on the back side of the existing H5 trough will cause skies to clear from west to east across the CWA during the mid and late morning hours. Expect mostly sunny skies with highs in the lower to mid 70s. Skies will be clear tonight, and with a drier airmass in place, overnight lows will drop into the lower 50s.
136 PM EDT Sat Oct 7 2017 High pressure over the Mid Atlantic will gradually move offshore. A warm front extends in Ontario Canada southward into Missouri.
305 PM MDT Sat Oct 7 2017 A cold front will bring cooler temperatures to much of the forecast area Sunday.
109 PM EDT Sat Oct 7 2017 Aviation A warm and breezy Saturday is in store thanks to a southerly flow of air ahead of an approaching cold front. Showers and a few thunderstorms will sweep through the region this evening as the cold front comes through, and we could have some winds gusts over 40 mph.
338 PM CDT Sat Oct 7 2017 Line of showers continue to progress east with the cold front. Believe there is some potential for patchy fog to develop in the low lying areas where wind can decouple toward daybreak Sunday morning.
At the surface, cold front extends from southern IA into south central KS and eventually into the TX Panhandle. Models continue to agree on diving another piece of energy into the Central Great Basin by Sun evening and by Mon afternoon will be moving out of the central Rockies and into the high Plains. As the upper level low pressure system continues to exit there has been reported turbulence across Kansas this morning which is something to be alerted of as this very well will continue into the afternoon.
Much-weakened TC Nate will turn northeastward over the eastern CONUS around the Atlantic high pressure ridge to its east.
1230 PM CDT Sat Oct 7 2017 The ArkLaTex remain in the deformation zone between a digging cold front to the north and Hurricane Nate lifting towards the gulf coast. Surface temperatures were shown to have been warmer than actually observed, due to the stratus deck in place across portions of central, northwest and northeast LA, as well as across portions of southeast OK and extreme northeast TX.
304 PM CDT Sat Oct 7 2017 The cold front has now exited the area to the south and east, leaving mostly clear skies in its wake.
Nate remains on the high end of a Category 1 Hurricane with winds around 90 mph. The latest satellite imagery has a well defined ridge over the western Atlantic and a trough digging into the central Conus. This trough will allow Nate to be pulled northward and around the western periphery of the ridge. Due to the forward speed of Nate, the highest threat will be wind gusts as there will not be time to disperse all the energy associated with the tropical system.
Breezy to windy conditions will develop Sunday ahead of an approaching cold front.
Latest Key West Doppler radar scans show a weakening band of showers and thunderstorms, lifting north-northeastward across the lower Florida Keys and waters to the north and south for some 50 nautical miles each way. Winds have been highest west of the Seven Mile Bridge, closer to the steeper pressure gradient induced by Hurricane Nate. Deep ridging should set in, with some drier air aloft working in as well. A Small Craft Advisory remains in effect for all zones west of the Seven Mile Bridge.
However, the deep low/trough forcing this rain will be moving directly overhead during the day, and a deformation zone on the back side of the low will likely generate additional showers from around midday into the afternoon, translating from west to east across the area, so have maintained generally 40-50 POPs correspondingly.
346 PM EDT Sat Oct 7 2017 A weak cold front will bring showers to the region tonight and early Sunday.
Cross sections show some amplification in the mountain wave near mountain top level which should result an increase in winds across the higher mountains and foothills from late this evening though about midnight. with wind gusts to 70 over the higher peaks. the upper level flow aloft becomes more southwesterly as an upper level trough of low pressure deepens over the northern Great Basin. Temperatures on Sunday should be around 5 degrees cooler than today due to increasing clouds. a few showers may begin to move into the very northern sections of the CWA as a strong cold front moves out of Wyoming into northern Colorado.
321 PM CDT Sat Oct 7 2017 A cold frontal passage with an ongoing wind advisory into early this evening is the main highlight of the short term period. Cold front stretched from southern Manitoba into the Turtle Mountains and across central/western ND. Low level instability/steep lapse rates will continue through the evening as a cold pocket of air at 850mb, reflection the cold front aloft, begins to push across northwest ND. Cooler Sunday with highs in the 50s and northwest winds 10 to 20 mph. There could be a brief shower or two in the north cental and northwest during the afternoon, along and ahead of a secondary cold front.
Associated surface cold front will move through the area Sunday afternoon, so might see falling afternoon temperatures.
An upper level low and low pressure trough and strong jet will continue to move east of the forecast area overnight tonight into Sunday. On Sunday: Another low pressure disturbance is forecast to wrap SSE around the departing low pressure system bringing in cooler air and breezy WNW winds to NE MT, with a few light showers.
Tonight, a wind shift/weak cold front will begin moving across the western half of our area. The most obvious sensible weather change will be a wind shift from Saturday's warm southwest winds to slightly cooler northwesterly breezes Sunday.
245 PM EDT Sat Oct 7 2017 High pressure over the Mid Atlantic will gradually move offshore. A warm front extends in Ontario Canada southward into Missouri.
132 PM MDT Sat Oct 7 2017 Strong west flow aloft will be ahead of an incoming Pacific cold front and low pressure trough. As the cold front approaches later tonight, light snow showers will develop across the north. Winds will shift to the north northeast and gradually decrease behind the cold front.
1238 PM CDT Sat Oct 7 2017 Widespread rain and a few embedded storms continue to track across the entire region this morning ahead of a cold front which is just now entering far northwest Missouri. Cold front will make steady eastward progress through the morning and will reach central MO some time around 10 or 11 AM.
Latest high resolution models take cold front east across central IL during mid/late afternoon with a band of showers and isolated thunderstorms ahead of it. Storm system over the central Plains will be moving northeast today, with a trailing cold front expected to cross the forecast area this afternoon.
and Sunday the upper low over the central Plains will move quickly to Wisconsin by evening and to north of Lake Ontario by early Sunday.
236 PM EDT Sat Oct 7 2017 High pressure over the Mid Atlantic will gradually move offshore. A warm front extends in Ontario Canada southward into Missouri.
226 PM MDT Sat Oct 7 2017 Weak upper ridging sits atop the CWA with mostly sunny skies as the area is inbetween storm systems. The next system will be an upper trough digging into the western CONUS tonight into Sunday morning. Clear skies are expected across most areas this evening, but clouds will increase from north to south as a cold front pushes into the area. Upper trough will deepen over the western CONUS Sunday with forcing aloft increasing as a series of waves cross the area.
A strong cold front will pass through the CWA in the afternoon ahead of a broad upper level trof. Upper trof across the Great Basin area will deepen Sunday as it approaches the northern Plains, and chances for precipitation will begin to increase. Following the trough, dry southwesterly upper flow will set up over the region.
242 PM CDT Sat Oct 7 2017 An upper trough will dig southeastward into the Great Basin through Sunday.
235 PM CDT Sat Oct 7 2017 Just a few showers remain across the eastern CWA this afternoon, as a cold front continues its progress across the region. Highs on Sunday will be around 80 degrees, with dewpoints in the mid 50s north and west of Springfield; values will then increase into the low 60s closer to the southeastern corner of the forecast area.
1043 AM PDT Sat Oct 7 2017 A cold front will continue to push across the region early this morning. The atmosphere behind the cold front is rather unstable and this will result in scattered showers across portions of the Inland Northwest through Sunday.
Dewpoints are now in the lower 70s across much of the area. Meanwhile, an upper trof is beginning to push into the Mid-South. This is due to the trof interacting with the northern edge of the tropical moisture. Expect scattered to numerous thunderstorms to begin to develop during the afternoon hours due to the interaction of the trof and peak heating. As Hurricane Nate is moving onshore early Sunday, a cold front will be making its way across the Midsouth. Flow aloft will gradually shift from more Westerly to South-Southwesterly over the region causing the cold front to stall somewhere along. The complex interaction between the remnants of Nate and the cold front along with uncertainty in the exact track of Nate results in a very low confidence forecast over the next few days.
245 PM CDT Sat Oct 7 2017 With Midwest trof of Low pressure filling, approaching front will essentially disintegrate as it lifts across/skirts just north and west of our FA.
We see some increased mid level clouds tonight/Sunday, with a weak trough crossing the state. High pressure to the north will feed dry air into the region with a weak system to our south. Winds do become northerly and as such we see some much cooler air enter the region.
525 PM EDT Sat Oct 7 2017 A weak cold front will bring showers to the region tonight and early Sunday.
/issued 304 AM CDT Sat Oct 7 2017/ A cooler, drier air mass is spreading across the forecast area early this morning behind last evening's cold front. As a result temperatures will remain on the mild side, near to just above seasonal norms and about 5 to 7 degrees cooler than yesterday. Temperatures will rebound on Sunday with highs in the middle 80s to lower 90s as southwest winds increase in response to lee cyclogenesis across southeast Colorado which in turn is in response to height falls associated with approach of the next upper level short wave trough.
530 PM CDT Sat Oct 7 2017 At 3 PM, a low pressure area was located between Waukon, IA and Caledonia, MN. Thunderstorms were occurring near and ahead of this low pressure area. In the wake of this low pressure area, the deformation band will move quickly east across the area. On Sunday afternoon and night, a Canadian cold front will move southeast through the region.
Scenario could support brief spin-up tornadoes of the high shear/low cape variety. Today A cold front will slowly work its way from west to east across the forecast area this afternoon making for a breezy day. Thunderstorm Chances: A broken line of low topped convection -- with little to no lightning -- may form along the cold front during the mid to late afternoon, probably east of a line from Independence to Mount Pleasant.
255 PM CDT Sat Oct 7 2017 An upper low is over Iowa and is embedded on the south end of a broad upper trough over southern Canada. High temperatures today should be about 10 degrees cooler than yesterday and near normal for this time of year. The upper trough over Canada will dig southward on Sunday.
111 PM EDT Sat Oct 7 2017 A weak cold front will bring showers to the region tonight and early Sunday.
Forecast on track with southerly winds across the western two thirds of the FA and ridge axis with light winds and fog persisting across the eastern zones. During the rest of the day increasing westerly winds will help temperatures rise into the low 70s and upper 60s across the area this afternoon. Highest winds should be on the higher terrain of the Pembina escarpment, Devils Lake basin and Sheyenne basin.
546 PM EDT Sat Oct 7 2017 Cold front approaches tonight, with gusty wind and showers.
103 PM EDT Sat Oct 7 2017 Dry and warm weather is expected Saturday before rain chances return with a cold front Sunday. Ample sunshine and strong warm advection ahead of the approaching cold front front will support much warmer than average temperature this afternoon. Will keep the higher gusts in the terrain through the overnight, but again, don't think this will meet advisory criteria based on the latest models and local research.
1237 PM CDT Sat Oct 7 2017 Light rain showers will taper off through the early morning hours as the responsible upper level low and surface cold front continue to track further off to the east. with temperatures returning to the low to mid 70s across the majority of the forecast area.
All of our terminals are well behind this mornings cold front boundary, as surface winds will remain out of the north to northwest through the afternoon, with the winds going light and variable after 00Z. Sunny weather with less humidity and slightly cooler temperatures will occur this afternoon. Forecast highs mainly in the upper 70s and lower 80s appear to be reasonable and were not adjusted, though would not be surprised if a few locations in far northwestern Oklahoma near Buffalo, Gage, and Woodward as well as locations in southeastern Oklahoma near Durant and Atoka get a few degrees warmer than currently forecast. Skies will rapidly clear behind the cold front and a beautiful day will unfold. Winds will quickly return from the south tomorrow as a fairly deep mid to upper trough digs into the Rockies.
Nate will then weaken as it moves further inland, but continue accelerating northeastward as it gets picked up by the approaching upper trough over the central CONUS, reaching Middle Tennessee by late Sunday.
259 PM PDT Sat Oct 7 2017 Cooler and windy Sunday with increased fire weather danger.
257 PM PDT Sat Oct 7 2017 An exiting cold front will continue to keep breezy conditions across the Columbia Basin and and a few lingering showers over the Idaho Panhandle. The atmosphere behind the cold front is rather unstable and this will result in scattered showers across portions of the Inland Northwest through Sunday.
236 PM EDT Sat Oct 7 2017 Cold front approaches tonight, with gusty wind and showers.
315 PM CDT Sat Oct 7 2017 Outer bands from Hurricane Nate are pushing northward from the Gulf Coast at this time while an upper trof is interacting with tropical moisture over the Mid-South. Temperatures in this area have risen into the lower 90s thus expect this band to continue to blossom over the next several hours as it moves northward into the Mid-South. In addition, other development is possible as the upper trof interacts with the tropical moisture during peak heating.
08Z Water vapor loop shows a sharp trough moving across the upper Midwest. This low is forecast to race northeastward today, moving into north central WI by 00Z tonight. Thereafter, expecting additional shower and thunderstorm development along the eastward advancing cold front and the trailing mid-level deformation axis. Ahead of the trough, temperatures will rise into the lower to mid 70s with breezy southerly winds.
A Blowing Dust Advisory is in effect for the Lower Columbia Basin and the Foothills of the Blue Mountains. Showers will increase tonight over the area as an upper trough moves into the region.
Drier conditions will prevail today and Sunday with unseasonably warm conditions expected Sunday ahead of a strong cold front.
A strong cold front will move into northern Nevada late tonight and Sunday morning bringing much cooler temperatures and windy conditions.
639 AM EST Thu Dec 21 2017 A low pressure system will develop over Missouri today and track towards northern Ohio overnight.
Fog is being observed at a number of locations early this mrng, with the lowest vsbys acrs Ern/Sern AR.
Upper level ridging moving into the area from the west as the low pressure that brought yesterdays snow has moved towards the 4 Corners region. Ridging becomes a diffluent flow aloft today as the next wave moves southward in northern BC/Alberta.
Shorter range high-res guidance continues to develop light rain and drizzle north of the warm front, which will be lifting into the CWA this afternoon. As the low tracks eastward to near Kansas City by early this evening, it will spread low clouds into central Illinois as the day progresses. As the low tracks into central Illinois, the boundary layer will moisten significantly tonight. With low temperatures dropping into the lower 30s, there is a potential for some freezing drizzle across the far NW KILX CWA around Galesburg toward dawn. Further southeast, temperatures will be much warmer. The low will track into Indiana by Friday morning, pulling a cold front southward toward the Ohio River.
534 AM CST Thu Dec 21 2017 Patchy to areas of drizzle will impact portions of central and east-central Kansas this morning, generally along/north of Highway 56, in vicinity of warm front/triple point taking shape across central Kansas. As colder air begins blasting southeast across the region in wake of a strong cold front, thinking a period of very light freezing drizzle mixed with flurries are possible this afternoon and evening, generally along/north of the Highway 56 corridor. Otherwise, a wide range in temperatures will exist across the region today, with 50s-60s ahead of the cold front across southeast Kansas, and temperatures falling into the upper 20s by early evening across central Kansas in wake of the front, ushered in by strong/gusty north winds. A long stretch of below normal temperatures will start Friday, as longwave troughing becomes firmly entrenched across North America.
Low pressure system that brought us precipitation yesterday has shifted into the Great Basin today. High pressure building over the Pacific has strengthened the pressure gradient, which is running about 5-6 mb between MFR and SAC. Dry weather expected with high temperatures running several degrees above normal as high pressure remains in control.
High pressure will build into California and bring dry weather through the Christmas holiday. Below freezing temperatures can be expected across much of the central California interior tonight and Friday night.