Aikyam-Lab/Synoptic-Bench huggingface dataset:
631 AM EDT Sat Apr 7 2018 Low pressure will move into the area today and bring showers and possible thunderstorms. The low will lift northeast of the area tonight. High pressure in the wake of the system will dominate briefly Sunday.
341 AM CDT Sat Apr 7 2018 Current depiction of the upper level pattern features northwest flow over the central Plains with a Western CONUS ridge and broad mature upper cyclone over the Hudson Bay region. Cold frontal boundary has made its way all the way into the southern Plains. High pressure will dominate the local pattern today with subsidence and clearing skies in complete control through the daytime hours. Center of the high is progged to be nearly overhead so winds will be calm today. Winds veer to the southeast into the overnight period as high pressure slides east and should act to keep overnight lows in the upper 20s. Whatever snow falls and possibly sticks in the northern counties in the morning will melt with the warmer temperatures and rain in the afternoon.
High pressure will build across the Upper Midwest over the weekend leading to mainly sunny skies. Increasing clouds on Sunday from west to east associated with a low pressure system that will track across south Dakota into southern Minnesota on Sunday. Today a broad area of high pressure will build across the Upper Midwest leading to mainly sunny skies. A broad warm frontal zone will approach central Minnesota, with increasing clouds and a chance for snow in the Brainerd Lakes region in the afternoon. Highs in the upper 20s to near 30 today, in the low 30s on Sunday.
Precipitation, mainly warm frontal in nature, is likely to result in light to moderate rain during this morning (focused in north-central Idaho). A cold front passage during this afternoon is the main focus for very convective showers, which may organize into a line of moderate to heavy rain, with embedded thunderstorms and gusty winds. Finally, behind the cold front, scattered showers and isolated thunderstorms are forecast for this evening. Western Montana will remain in a showery regime tonight and Sunday, but the high terrain is likely to see fairly consistent snow tonight and Sunday.
422 AM CDT Sat Apr 7 2018 Remnants of overnight convective complex are continuing to provide showers over the far southern portions, while isolated showers are dotted over northern portions associated with southward moving cold front. Meanwhile, strong low level cold advection behind the front may provide deep enough sub-freezing layer for a few ice pellets to mix in with the rain over far northwest portions later this morning into early afternoon. These conditions will not be ideal for strong radiational cooling, but they will be sufficient, given the coldness of this airmass, for sub-freezing temperatures over the northern third with some frost also able to form as far south as I20.
A cold front will move through the region after 12Z.
320 AM CDT Sat Apr 7 2018 Canadian high pressure building into the Plains/Upper Midwest is gradually pushing clouds and very light snow south of the KILX CWA early this morning. Despite abundant sunshine, light northerly winds will keep temperatures well below normal for this time of year in the lower to middle 40s. With high pressure overhead, clear skies and light winds will allow lows tonight to once again drop into the lower to middle 20s.
613 AM EDT Sat Apr 7 2018 A quiet and cold weekend is expected as high pressure builds in.
Cold front has now moved w and s of all TAF sites and winds are slowly decreasing.
111 AM EDT Sat Apr 7 2018 WV imagery and RAP analysis indicated a deep mid/upper level trough from New Foundland into nrn Ontario resulting in cyclonic nw flow into the nrn Great Lake. Expect enough clearing and diminishing winds for temps to drop toward the lower end of guidance inland west to the low single digits but remain in the teens where LES/clouds persist. Saturday, sfc ridging and drying will move in more strongly over the west with lingering LES in the morning diminishing by afternoon with little additional accumulation.
1106 PM MDT Fri Apr 6 2018 Current surface analysis shows cold front well south of the area, with high pressure centered over far northeast MT. Another cold night is on tap for the area, with lows mainly in the 5 to 15 degree range, as high pressure to the north slides southeast across the Northern Plains. Some milder air will return on the back side of the high Saturday as winds turn to the south and southeast. The bigger concern could be the threat for some freezing rain to the north and east of the Black Hills late Saturday night as warmer air aloft starts to override the below freezing temps at the surface. With warmer air in place, highs will rise into the 40s in many areas, cooler across far northwest SD.
655 AM EDT Sat Apr 7 2018 High pressure builds into the area today into Sunday with seasonably cold weather continuing and a few mainly mountain flurries or light snow showers.
At 05Z, a cold front was draped across the south, stretching from the VA/WV border southwestward across central TN, northern MS, southern AR, and into central TX.
PoPs will be likely to categorical (70-90%) all zones Saturday with rain ending from northwest to southeast Saturday evening into early Sunday with the passage of the cold front. We will see a brief dry period Sunday before the aforementioned front lifts north as a warm front Sunday night bringing a low end chance for rain.
438 AM EDT Sat Apr 7 2018 The low level mean layer ridge has shifted east over the past 24 hours, with its axis reaching west across the Florida Keys. A height scouring trough complex is pivoting through the northern Gulf Coast, collocated with a lengthy complex of deep convection impacting the Gulf states.
700 AM EDT Sat Apr 7 2018 A Canadian high pressure system will bring unseasonably cold air to the Great Lakes through the weekend.
310 AM CDT Sat Apr 7 2018 Strong cold front has now pushed all the way down to south TX with Arctic air spilling across the Plains. We will finally see a warm-up commence on Tue as we get into some lee troughing and return flow. Confidence is high that by Wed we will see above normal temps with even warmer readings expected for Thu.
303 AM CDT Sat Apr 7 2018 The cold front has made its way through the mid state, and northerly winds are bringing in the cold air behind. Temps should warm a bit late morning to bring an end to sleet/snow chances, but sleet/snow chances will continue for the northern Plateau and areas near the KY border where temps may still be in the low to mid 30s. Skies will begin to clear out in the afternoon and evening, and precip chances will push off to the east as the upper trough heads east as well. High temps will only recover to the low to mid 50s for most of the area as 850mb temps are right around 0C.
SHORT TERM (Today through Sunday): Satellite and radar images indicate convection diminishing across southeast and south-central Texas as the cold front moves into south Texas early this morning. Temperatures will remain steady or fall across most of the area this afternoon as much cooler air filters into the area in the wake of the front. Strong north winds will develop in the wake of the front especially across the lower TX coast this afternoon. Lows will be considerably cooler than the past several nights.
347 AM EDT Sat Apr 7 2018 Cold, late winter-like pattern to hold throughout the weekend and upcoming early work week as broad upper level troughing remains locked over much of northern North America.
Thunder is confined to the west and south closer to the cold front. Saturday afternoon through Sunday will be dry with high pressure in place.
258 AM CDT Sat Apr 7 2018 Satl imagery this morning showing a tight circulation situated just off the Pacific NW coastline with an amplified ridge axis up through OR/WA/British Columbia. Meanwhile, a broad broad trof was in place over the cntrl/ern CONUS. strong Canadian high pressure was continuing to build southward into the central Plains. The column will still be cold enough to support all snow through the morning hours before a gradual shift to a mix of snow/freezing rain/rain takes place Sunday afternoon. The GFS and ECM advertise no active weather on the horizon to contend with as an upper level ridge is progged to build in from the west.
436 AM CDT Sat Apr 7 2018 Cold front pushing through the middle of SETX at 4 am and should be off the coast around 9-10 am near Galveston sooner near Palacios. Much cooler air on the northern doorstep this morning and it is coming here. 4 pm temperatures will be 15 to 30 degrees cooler than yesterday.
346 AM CDT Sat Apr 7 2018 It's cooler this morning and we'll see a cloudy start to the day. This low's movement will be impeded by a high amplitude ridge extending from the desert southwest beyond northern BC. However, into early Sunday, the ridge will rapidly transition to near zonal flow. The trough that will pass to our north is but a mere shadow of what it was a few days ago. As the trough makes its passage, we'll see ridging build along the west coast once again.
Upper troughing will amplify today over the eastern U. Cold front will move across the area tonight with the chance of showers ending from the nw after midnight. Winds will shift to the nw with frontal passage tonight while upper trough moves off the east coast bringing drier air to the region by morning.
255 AM EDT Sat Apr 7 2018 A quiet and cold weekend is expected as high pressure builds in.
542 AM EDT Sat Apr 7 2018 Snow will continue to taper off today as high pressure builds in. The high should maintain dry weather Sunday. Snow should continue to diminish from N-S this morning as frontogenesis and upper support wanes behind an exiting cold front. A wave of low pressure moving along the front should maintain snow chances near the higher terrain areas of WV and MD as that area is progged to be on the northern fringes of the low's associated precip. Additional accumulation should be less than an inch for most locations, with 1-3 inches in the higher terrain of WV and MD. Otherwise, dry weather is expected as high pressure begins to build.
/Issued 344 PM CDT Fri Apr 6 2018/ Short/near term highlights include the strong cold front that passed through the area today with breezy northerly winds.
358 AM CDT Sat Apr 7 2018 Light winds today and a bit warmer 925 mb temps this aftn, esp in the nrn RRV with little snow cover. High temps therefore a bit warmer but still well below normal, just not record cold highs. Cold 500 mb temps combined with sfc heating and some 850 mb moisture is expected to cause some stratocu to form with focus once again in the nrn RRV with the warmer temps.
Initial wind shift ahead of today's cold front is approaching the forecast area as or 4am. Cold front is through San Antonio and pushing south. around 70 degrees will occur this morning with temperatures into the lower to mid 60s by mid-day and into the 50s northeast in the afternoon. While cloudy skies will continue, low temperatures are still expected to drop into the mid and upper 40s for a lot of the area, remaining in the low 50s along the coast. Upper ridge moves off to the east rather quickly with easterly to southeasterly flow developing during the day on Sunday.
250 AM EDT Sat Apr 7 2018 Low pressure will move into the area today and bring showers and possible thunderstorms. The low will lift northeast of the area tonight. High pressure in the wake of the system will dominate briefly Sunday.
231 AM MDT Sat Apr 7 2018 The latest upper-air and water vapor observations had a strong low off the West Coast with ridging onshore and a fairly broad long-wave trough dominating the eastern 2/3 of the CONUS.
with the cold front now across SWRN sections of the state. High pressure will settle over the area tonight. This will result in widespread near or below freezing temps for most of the CWA. This will bring warmer temps for Sun afternoon.
A Pacific low pressure system, currently located near 45N/132W, will affect weather conditions across the Pacific Northwest through much of this period. This system has been pushing a warm front through the area early this morning. Meanwhile the system's cold front has already moved into southwest Oregon and the southern Willamette valley. This cold front should be through much of our area by late morning. Decent chances of precip will be possible with both fronts, especially the cold front. Some of the best precip should be over the Blue mountains and along the Blue mountain foothills as the cold front interacts with the rising terrain. There is an outside chance of a rumble of thunder with the cold front, but for now will not mention. Showers will decrease Sunday night as high pressure builds into the region.
A cold front is located just north of our area at the moment, and will be moving southward through the day. Most precip is moving east of our area early this morning, but the passage of the mid/upper trough axis may bring another surge of precip this afternoon. The model trend has been toward lower QPF and less snow/sleet accumulation, and the forecast will follow this trend as well, but maintain the Advisory area as up to 2 inches will still be possible in the higher elevations like High Knob.
/26/ Remnants of overnight convective complex are continuing to provide showers over the far southern portions, while isolated showers are dotted over northern portions associated with southward moving cold front. Meanwhile, strong low level cold advection behind the front may provide deep enough sub-freezing layer for a few ice pellets to mix in with the rain over far northwest portions later this morning into early afternoon. These conditions will not be ideal for strong radiational cooling, but they will be sufficient, given the coldness of this airmass, for sub-freezing temperatures over the northern third with some frost also able to form as far south as I20.
653 AM EDT Sat Apr 7 2018 Aviation An area of high pressure located in the Upper Plains will build gradually east today and into the Great Lakes Region on Sunday.
431 AM EDT Sat Apr 7 2018 A frontal boundary south of Long Island will drop into the Mid Atlantic region today as low pressure develops along it and passes well south and east of the area late tonight into Sunday.
308 AM EDT Sat Apr 7 2018 Snow will continue until high pressure builds in today through Sunday. Snow should continue to decrease from N-S this morning as frontogenesis and upper support wanes behind an exiting cold front. A wave of low pressure moving along the front should maintain snow chances near the higher terrain areas of WV and MD as that area is progged to be on the northern fringes of the low's associated precip. Additional accumulation should be less than an inch for most locations, with 1-3 inches in the higher terrain of WV and MD. Otherwise, dry weather is expected as high pressure begins to build.
553 AM CDT Sat Apr 7 2018 Satl imagery this morning showing a tight circulation situated just off the Pacific NW coastline with an amplified ridge axis up through OR/WA/British Columbia. Meanwhile, a broad broad trof was in place over the cntrl/ern CONUS. strong Canadian high pressure was continuing to build southward into the central Plains. The column will still be cold enough to support all snow through the morning hours before a gradual shift to a mix of snow/freezing rain/rain takes place Sunday afternoon. The GFS and ECM advertise no active weather on the horizon to contend with as an upper level ridge is progged to build in from the west.
Lingering low level moisture and thermal trof over southern WI should result in more cu redevelopment later this morning and afternoon, especially in the eastern areas. Diminishing boundary layer winds and clearing with approach of high pressure ridge will allow temps to fall back into the teens.
630 AM EDT Sat Apr 7 2018 Low pressure will move into the area today and bring showers and possible thunderstorms. The low will lift northeast of the area tonight. High pressure in the wake of the system will dominate briefly Sunday.
126 AM EDT Sat Apr 7 2018 A cold front moves across the area tonight. The front will stall offshore on Saturday with multiple areas of low pressure moving along it through Saturday night.
407 AM CDT Sat Apr 7 2018 High pressure will build across the Upper Midwest over the weekend leading to mainly sunny skies. Increasing clouds on Sunday from west to east associated with a low pressure system that will track across south Dakota into southern Minnesota on Sunday. Today a broad area of high pressure will build across the Upper Midwest leading to mainly sunny skies. A broad warm frontal zone will approach central Minnesota, with increasing clouds and a chance for snow in the Brainerd Lakes region in the afternoon. Highs in the upper 20s to near 30 today, in the low 30s on Sunday.
311 AM EDT Sat Apr 7 2018 Low pressure will move into the area today and bring showers and possible thunderstorms. The low will lift northeast of the area tonight. High pressure in the wake of the system will dominate briefly Sunday.
638 AM EDT Sat Apr 7 2018 A frontal boundary south of Long Island will drop into the Mid Atlantic region today as low pressure develops along it and passes well south and east of the area late tonight into Sunday.
540 AM EDT Sat Apr 7 2018 Snow will continue to taper off today as high pressure builds in. The high should maintain dry weather Sunday. Snow should continue to diminish from N-S this morning as frontogenesis and upper support wanes behind an exiting cold front. A wave of low pressure moving along the front should maintain snow chances near the higher terrain areas of WV and MD as that area is progged to be on the northern fringes of the low's associated precip. Additional accumulation should be less than an inch for most locations, with 1-3 inches in the higher terrain of WV and MD. Otherwise, dry weather is expected as high pressure begins to build.
Have trended temps up a few degrees from the previous forecast with highs averaging in the upper 30s to the low/mid 40s north/south. In increasing lift, precip is expected to develop late tonight initially to our north in proximity to the closed upper low moving through the Dakotas and also to our southwest with a disturbance moving out of Colorado across KS. This being said, a light wintry mix of snow, sleet and freezing rain are also possible late tonight into early Sunday in the warm air advection regime. While still below freezing, impacts of any icing should be relatively brief before the precipitation transitioning to rain before ending as temperatures warm.
We, along the with Will Rogers observer, observed light drizzle/freezing drizzle early tonight, but given the minimal saturation depth and dry advection with relatively high ceilings, this should not be impactful. If impacts do occur from freezing drizzle, it should be east and southeast of OKC where subfreezing temperatures will arrive quicker and deeper low level saturation as is evident by upstream lower ceilings may occur. This could shift into far southeast Oklahoma (around Atoka and Durant once temperatures fall below freezing toward sunrise). For OKC/OUN the highest probabilities are expected after 12Z.
353 AM EDT Sat Apr 7 2018 A Canadian high pressure system will bring unseasonably cold air to the Great Lakes through the weekend.
852 AM EDT Tue Sep 26 2017 High pressure will bring dry and warm weather through mid-week before the passage of a cold front heralds a return to seasonably-cool conditions. With a warmer start this morning and very little airmass change from yesterday, high's may be a degree or two warmer.
There will be an increase in high clouds during the afternoon, and a light but more consistent southwest wind, as a cold front moves closer from the Midwest. One more day with high temperatures topping out at 90 degrees, as the trend of the cold front looks to be a bit slower. With the surface cold front looking to come through Wednesday morning, should allow Detroit to hit 80 degrees on Wednesday before the deeper cool air can become established.
1147 AM EDT Tue Sep 26 2017 High pressure will bring dry and warm weather through mid-week before the passage of a cold front heralds a return to seasonably-cool conditions. High pressure continues to dominate the weather pattern today amid subsident air on the nwrn side of Hurricane Maria and amid an upper ridge. With the loss of diurnal heating and the passage of the cold front, chances for rain will wane rapidly Wed evening as moisture is scoured and cool, dry air invades in its wake.
Clouds have been increasing rapidly since about 4 AM as 100 knot northerly jet streak over northern Nevada forces upper low over NV/UT border to dig southward.
1108 AM EDT Tue Sep 26 2017 Warm, humid weather continues today and Wednesday, though it will be cooler for areas closer to the coast. A cold front will move into the area Wednesday night, bringing an end to this warm and humid air mass, replacing it with a cooler and drier one. This cooler, drier weather will last through the weekend. With fog this morning and high clouds crossing the region today, have forecasted slightly cooler readings than yesterday. Otherwise, a large ridge of high pressure will continue to dominate the region today. By Wednesday afternoon, the long awaited cold front will be approaching the region. There may be a shower along the Midcoast as well as moisture converges along a prefrontal trough. Cold front crosses the area Wednesday night with a chance of showers or a thunderstorm as it does so.
923 AM EDT Tue Sep 26 2017 Dry and warm high pressure will remain across the region through Wednesday as Hurricane Maria moves slowly northward off the NC coast.
717 AM EDT Tue Sep 26 2017 Warm, humid weather continues today and Wednesday, though it will be cooler for areas closer to the coast. A cold front will move into the area Wednesday night, bringing an end to this warm and humid air mass, replacing it with a cooler and drier one. This cooler, drier weather will last through the weekend. With fog this morning and high clouds crossing the region today, have forecasted slightly cooler readings than yesterday. Otherwise, a large ridge of high pressure will continue to dominate the region today. By Wednesday afternoon, the long awaited cold front will be approaching the region. There may be a shower along the Midcoast as well as moisture converges along a prefrontal trough. Cold front crosses the area Wednesday night with a chance of showers or a thunderstorm as it does so.
Water vapor imagery and RAP upper level height analysis depicts an upper level low across Apalachee Bay and the northeast Gulf of Mexico with a 50-55 knot jet at 250 mbs across central FL.
648 AM CDT Tue Sep 26 2017 An upper level trough over the northern Plains will move eastward into the northern portion of the Great Lakes region tonight, and send a cold front currently extending from northwestern WI southwest into central OK southeastward through our forecast area today and this evening. Unseasonably warm temperatures are expected again today, especially across east central and southeast MO and southwest IL ahead of the cold front. Cooler temperatures, closer to seasonal normals can be expected across parts of northeast MO today, and northeast and central MO and west central IL tonight. Otherwise, much cooler temperatures will be the main story.
A short wave ridge aloft will be over the region today with one trough exiting into the the upper Midwest while another drops into the Great Basin.
Ridging will persist across the Tennessee valley suppressing convection development with little cloud cover. Surface ridging will also produce light winds through the period.