Aikyam-Lab/Synoptic-Bench huggingface dataset:
439 AM EDT Tue Apr 26 2022 Much cooler temperature is expected the remainder of the work week with scattered rain and snow showers tonight and Wednesday. Temperatures will be much cooler in the wake of the recent cold front today. Scattered showers and snow showers will then develop tonight and Wednesday as a cold upper low transitions over the region. High pressure will then maintain dry conditions the remainder of the week and into the weekend.
This will allow for mild conds across the FA, esp south central where the frontal boundary will lift north enough, allowing the thermal ridge to nose in. Slightly cooler conds can then be expected Wed as the front settles back south and northerly winds spread over the region. Attention then turns toward the expected Rockies deep upper trough, which will slowly push east Thur-Fri and support a good chance for precip in the region Thur night through Sat.
SHORT TERM (Now through Wednesday): The most recent surface analysis indicated a cold front draped along a northeast to southwest line from Sarita to Roma. Drier weather is slated for Wednesday as precipitable water values decrease appreciably and 500 mb high pressure noses into Deep South Texas and the Rio Grande Valley from the southwest.
1151 PM CDT Mon Apr 25 2022 Key Messages: - Sub-freezing temperatures and widespread frost are expected tonight along and north of Highway 36 with areas of frost and temperatures in the mid 30s expected further south.
627 AM CDT Tue Apr 26 2022 Stratus in the exiting upper trough will continue to exit fromt he northeast this morning. Upper ridging builds in from the west helping to usher in some warmer air. To aid the ridge, southeast winds will provide good mixing ahead of an approaching low pressure system, especially across central SD. Temperatures will range from the lower 50s in the northeast to the mid 60s in south central SD. The main challenge in this period will revolve around the low pressure system that is forecast to move through the region the end of the week and through the upcoming weekend.
735 AM EDT Tue Apr 26 2022 Aviation -- Showers Today -- Upper-level trough (closed low at 500 mb) and 850 cold air advection will leave us prone to showers developing today, reaching their peak in the afternoon with diurnal instability.
442 AM CDT Tue Apr 26 2022 Stratus in the exiting upper trough will continue to exit fromt he northeast this morning. Upper ridging builds in from the west helping to usher in some warmer air. To aid the ridge, southeast winds will provide good mixing ahead of an approaching low pressure system, especially across central SD. Temperatures will range from the lower 50s in the northeast to the mid 60s in south central SD. The main challenge in this period will revolve around the low pressure system that is forecast to move through the region the end of the week and through the upcoming weekend.
611 AM EDT Tue Apr 26 2022 High pressure will build in from the west for mid week bringing below average temperatures and the chance for frost tonight and Wednesday night. High pressure shifts east by the end of the week allowing southerly flow to return along with moderating temperatures. High pressure continues to build in from the west today. Frost will be likely tonight thanks to high pressure moving overhead along with clearing skies and relatively calm winds. Forecast lows are in the low to middle 30s north of the Ohio River and middle 30s along and south of the Ohio River. Some subfreezing temperatures are also possible across Ohio and eastern Indiana in rural locations. High pressure remains overhead on Wednesday bringing mostly sunny skies and below average temperatures.
High pressure will build in from the west for mid week bringing below average temperatures and the chance for frost tonight and Wednesday night. High pressure shifts east by the end of the week allowing southerly flow to return along with moderating temperatures. As the disturbance works through cooler air will move into the region. Frost will be likely tonight thanks to high pressure moving overhead along with clearing skies and relatively calm winds. Forecast lows are in the low to middle 30s north of the Ohio River and middle 30s along and south of the Ohio River. Some subfreezing temperatures are also possible across Ohio and eastern Indiana in rural locations. High pressure remains overhead on Wednesday bringing mostly sunny skies and below average temperatures.
1035 AM EDT Tue Apr 26 2022 Warm weather again today, but a cold front tonight will bring big changes. The cold front will be the main focus of the near term period, however a dry morning/midday is on tap with a mid-level ridge axis still in place along the East coast. highs in the mid/upr 80s inland, with lows in the low/mid 50s tonight. Dry and cool weather in store for the short term period following Tuesday night's cold front.
224 AM MST Tue Apr 26 2022 High pressure will continue to dominate our weather through the middle of the week.
Weather Details: H5 RAP analysis and water vapor imagery this morning shows a mid- to upper-level ridge over MT/WY/CO that is providing tranquil wind and weather conditions. This trough axis will pivot NW into Canada with ridging influencing remaining over WY/NE though Wednesday morning. With that being said, midweek should remain tranquil under a prominent upper level ridging pattern setting up across the Intermountain West.
829 AM EDT Tue Apr 26 2022 Much cooler temperature is expected the remainder of the work week with scattered rain and snow showers tonight and Wednesday.
743 AM EDT Tue Apr 26 2022 Upper level ridging aloft and Atlantic high pressure stretching across FL to the Gulf of Mexico both begin to settle southward as an upper trough accompanied by a front swings into the southeast U. Temperatures run above normal with a few inland location reaching the lower 90s. High pressure builds in behind the front Thu with winds up to 20 knots.
A cold front is clipping northwest California this morning, but only a couple spotty showers or some patchy coastal drizzle is expected followed by clearing skies later in the day. Cooler temperatures and breezy afternoons are forecast for midweek.
By afternoon, most areas will be sunny, but still cool as Highs are expected to only reach the Low 60s which is several degrees below seasonal normals. Last night's cold front has departed and taken the showers with it.
538 AM EDT Tue Apr 26 2022 As the Canadian low responsible for the cold front, that's presently impacting the region, ejects toward the North Atlantic it will drag the cold front out of the region. However, the associated cold front will provide a secondary push of colder air for tonight. Temperatures through the period will be cooler with little recovery from the secondary cold front. Temperatures for Tuesday and Wednesday are forecast to be in the mid to high-50s with several places reaching the low 60s by Wednesday afternoon. Further upstream, another mid/upper level trough will be dropping into the Pacific Northwest.
The cold front has finally moved east of Middle Tennessee, and we are left with still quite a bit of post-frontal showers affecting mainly the Cumberland Plateau and areas just to the west of the escarpment. Skies will clear out rapidly today, but afternoon temperatures will be considerably cooler than the past few days of abnormally warm readings.
611 AM CDT Tue Apr 26 2022 Key Messages: - A cold start to the day with widespread frost across the entire area and subfreezing temperatures along and north of Highway 36.
/Issued 338 AM EDT Tue Apr 26 2022/ A few showers extend along a cold front nearing northwest Georgia early this morning. The cold front will make steady progress southeastward through the day, reaching the Atlanta area by mid- morning. Skies will clear from northwest to southeast from late afternoon into this evening behind the front as drier and cooler air builds into the area. Much of the Southeastern CONUS will be under northwesterly flow aloft ahead of a broad upper level ridge over the Great Plains. At the surface, weak high pressure centered well to the north of the forecast area will begin to move towards the Mid-Atlantic coast.
Wednesday will trend even warmer as southerly winds continue. Isolated convection may continue into the overnight, forced by continued warm/moist advection in the low levels.
426 AM MDT Tue Apr 26 2022 Tightening pressure gradient will occur across northeast Montana today as lee trof begins to strengthen and move eastward. As the trof moves east tonight, a few showers are possible, mainly for the western zones.
Today Through Wednesday Night Calmer and cooler conditions have returned to the Natural State in the wake of a frontal passage. High clouds were noted this morning streaming across the region, via infrared satellite imagery, as the upper trough axis slowly pivots across the Mid MS Valley. Today, an upper level ridge will move into the Rockies with upper flow becoming NWrly locally. At the surface, high pressure will move towards the region from the NW beneath upper NW flow. Surface winds will transition from NW to NE this afternoon as high pressure approaches. Wednesday, the aforementioned upper ridge will translate Ewrd into the plains. High pressure at the surface will slide Ewrd, and resultant surface winds will veer from E to S/SE. Wednesday night, the upper ridge will move into the MS Valley and flatten in amplitude.
Upper level trough in the Great Lakes region was keeping a cyclonic flow across our northeast cwa, resulting in persistent low stratus. This of course has kept temperatures well above freezing in portions of nw IL, and the freeze warning was cancelled. Today: Short range models doing a poor performance with the low stratus that has been persistent across roughly our ne half. Northwest to north winds will also be gusting up to 25 to 30 mph in nw IL closer to the low pressure in the Great Lakes.
There'll be a bit of a lull, before a deeper 500mb trough sinks south into the Great Lakes Region late this morning and into the afternoon hours. Activity should then wane going into the evening hours as the trough axis moves east.
432 AM MDT Tue Apr 26 2022 An upper level ridge will build into the area today, as a sfc lee trough becomes established, along the front range. For tonight, outside of some mid and high levels clouds, it will remain dry with breezy conditions over the higher terrain.
The combination of both low-level high pressure and increasing upper level heights makes for a very dry airmass from top to bottom, and keeps fire weather as the focus for today's forecast.
A cold front currently moving through central Idaho is poised to traverse western Montana this morning, stalling across southwest Montana until this afternoon. Wednesday will see a continuation of showery, and breezy conditions, with much cooler temperatures returning.
611 AM CDT Tue Apr 26 2022 (Today and tonight) A weak upper ridge will start building overhead as the Southern Plains should remain dry in the short term with a gradual warming trend. Our area should see plenty of sunshine today as high pressure settles across the area with temperatures rebounding closer to average. Did go slighlty warmer than NBM and closer to MOS guidance with this afternoons MaxT using the CONSMOS.
Two TEMPOs are in effect for each of the aerodromes today, as model guidance suggests rounds of convection due to daytime heating interacting with a moist atmosphere and the presence of a weak cold front. /issued 339 AM CDT Tue Apr 26 2022/ SHORT TERM (Now through Wednesday): The most recent surface analysis indicated a cold front draped along a northeast to southwest line from Sarita to Roma. Drier weather is slated for Wednesday as precipitable water values decrease appreciably and 500 mb high pressure noses into Deep South Texas and the Rio Grande Valley from the southwest.
1030 AM EDT Tue Apr 26 2022 Showers in association with a cold front that crossed the region last night has mostly moved off into VA, TN, and WV. As the Canadian low responsible for the cold front, that's presently impacting the region, ejects toward the North Atlantic it will drag the cold front out of the region. However, the associated cold front will provide a secondary push of colder air for tonight. Temperatures through the period will be cooler with little recovery from the secondary cold front. Temperatures for Tuesday and Wednesday are forecast to be in the mid to high-50s with several places reaching the low 60s by Wednesday afternoon. Further upstream, another mid/upper level trough will be dropping into the Pacific Northwest.
High pressure will continue to dominate our weather through the middle of the week.
As the Canadian low responsible for the cold front, that's presently impacting the region, ejects toward the North Atlantic it will drag the cold front out of the region. However, the associated cold front will provide a secondary push of colder air for tonight. Temperatures through the period will be cooler with little recovery from the secondary cold front. Temperatures for Tuesday and Wednesday are forecast to be in the mid to high-50s with several places reaching the low 60s by Wednesday afternoon. Further upstream, another mid/upper level trough will be dropping into the Pacific Northwest.
Dry and breezy with warmer than average temperatures into the weekend with the afternoon temperatures peaking Today.
532 AM EDT Tue Apr 26 2022 Much cooler temperature is expected the remainder of the work week with scattered rain and snow showers tonight and Wednesday. Temperatures will be much cooler in the wake of the recent cold front today. Scattered showers and snow showers will then develop tonight and Wednesday as a cold upper low transitions over the region. High pressure will then maintain dry conditions the remainder of the week and into the weekend.
644 AM EDT Tue Apr 26 2022 Warm weather again today, but a cold front tonight will bring big changes. The cold front will be the main focus of the near term period, however a dry morning/midday is on tap with a mid-level ridge axis still in place along the East coast. highs in the mid/upr 80s inland, with lows in the low/mid 50s tonight. Dry and cool weather in store for the short term period following Tuesday night's cold front.
Forecast soundings suggest backing winds in the next couple hours will support island cloud lines, at least along the Lower Keys.
Showers and isolated afternoon thunderstorms will be in the forecast today as an upper level trough moves onshore. Drier conditions are expected on Wednesday as the trough moves east of the area.
Key Messages: - Frost/Freeze conditions continue this morning - Red Flag Warning for Republic, Cloud, and Ottawa counties this afternoon - Chance for showers and storms increase late Wednesday through the end of the week Surface ridging is in control of the middle part of the CONUS this morning with light winds and clear skies allowing temperatures to fall into the low to mid 30s.
A passing dry cold front will bring breezy winds and cooler temperatures Tuesday.
635 AM CDT Tue Apr 26 2022 Low amplitude upper level ridge will approach from the west, passing overhead tonight.
Light rain showers and clouds continue to steadily decrease this morning in the wake of a cold front. The cold front has moved well east of the area this morning, but some residual showers continue in the southeast. These showers will continue to be possible through the morning in the southeast, but high pressure will continue to build in through the day with clearing skies and cooler temperatures. As cool high pressure settles in overnight, lows will fall into the low to mid 40s across the area.
especially across the western counties where the higher terrain could pick up a coating to an inch. then Canadian high pressure will offer fair cool weather for the remainder of the week. with some of the higher terrain possibly receiving an inch. As the lower portion of the boundary layer warms during the day Wednesday. Max temps on Wednesday will struggle to climb above 40 across the lake plains while the higher terrain will remain in the 30s. Drier air working south into the region Wednesday night ahead of a wedge of Canadian high pressure will result in clearing from west to east. An upper level ridge will build across our region to start this period.
Expect these pleasant temperatures to continue for Wednesday as high pressure remains in control over the region. Temps will warm through late week, under an amplifying upper ridge.
especially across the western counties where the higher terrain could pick up a coating to an inch. then Canadian high pressure will offer fair cool weather for the remainder of the week. weak sfc based ridging should keep us from receiving any pcpn. with some of the higher terrain possibly receiving an inch. Across the higher terrain, expect showers to primarily fall as snow, adding a few extra tenths of snowfall early before diurnal and spring sun angles have their way. An uptick in activity will occur across the area east of Lake Ontario late Wednesday afternoon/early Wednesday night as the upper level trough axis passes overhead. Aforementioned upper level features will pull east across New England, while ridging builds across the upper Mid-West.
1234 PM CDT Tue Apr 26 2022 Adjusted cloud cover a bit more as locations north of the Highway 2 corridor continue to see the stratus scattering out. Temps have climbed into the upper 20s to low 30s in many places, and should finally get above the freezing mark at least in the spots that are getting some sunshine this afternoon.
Otherwise, a pleasant evening is forecast with southerly winds and much warmer morning lows in the mid to upper 40s for most areas.
347 PM EDT Tue Apr 26 2022 Much cooler temperature is expected the remainder of the work week with scattered rain and snow showers tonight and Wednesday. Shower chances will continue to linger in the ridges for a few more hours with the departure of a crossing longwave trough/cdfnt. Redevelopment of scattered rain and snow showers is expected develop tonight as cold upper low digs over the region. High pressure will then maintain dry conditions the remainder of the week and into the weekend.
1144 AM MDT Tue Apr 26 2022 The state is currently under a ridge with moisture streaming in from the west. Temperatures will be almost 15 degrees warmer than yesterday with increased fire danger for the lower elevations. An upper level ridge will build into the area today, as a sfc lee trough becomes established, along the front range. For tonight, outside of some mid and high levels clouds, it will remain dry with breezy conditions over the higher terrain.
Isolated to scattered showers and thunderstorms are developing across the area this afternoon ahead of a cold front currently approaching southeast Alabama. Meanwhile, as high pressure slides off the Atlantic coast, surface flow becomes more southeasterly, bringing in additional moisture.
Cooler and drier tonight behind the cold frontal passage. Higher pressure builds in with cooler temperatures continuing Wednesday. Cold air advection was occurring behind the cold front keeping temperatures cool. Highs should only be in the 60s across the region but colder over the higher elevations in Tennessee and southwest Virginia. The cooler temperatures and clearing skies will lead to overnight lows ranging from the mid 30s in a few colder locations which could have frost to the mid 40s near Chattanooga. Upper trough shifts east of the forecast area as higher pressure continues to build in Wednesday with highs reaching into the 60s to lower 70s.
1219 PM CDT Tue Apr 26 2022 Dry and seasonably cool late April weather is forecast through tonight as a slow-moving surface anticyclone moves through Missouri toward the confluence of the Mississippi/Ohio Rivers. Therefore, will not issue a frost advisory tonight but if low temperatures are ever so slightly cooler, than one may become necessary. A quick warmup is forecast on Wednesday as southerly flow at the surface increases behind the departing surface anticyclone.
303 PM CDT Tue Apr 26 2022 KEY MESSAGES: - Overnight lows will fall below freezing again tonight under clearing skies.
339 PM CDT Tue Apr 26 2022 /Updated at 0154 PM CDT Tue Apr 26 2022/ The cold front continues to push southeastward through Central Alabama early this afternoon, with cooler and drier air pushing southeastward. Much cooler air filters in overnight tonight, and we'll see widespread 40s across much of the area.
209 PM EDT Tue Apr 26 2022 The cold front along with showers.
240 PM CDT Tue Apr 26 2022 Currently aloft, the CWA is under northwesterly flow on the backside of a trough departing the Middle Mississippi Valley, leading to weak cold air advection over the region. At the surface, an area of high pressure is slowly making its way through the Midwest, and is currently roughly centered over Missouri. Elmore Guidance consensus is that the subtle upper-level ridging will build further into the Midwest, with low-level flow advecting deeper moisture into the region.
This high will continue to slide east this afternoon and evening.
/Updated at 0154 PM CDT Tue Apr 26 2022/ The cold front continues to push southeastward through Central Alabama early this afternoon, with cooler and drier air pushing southeastward. Much cooler air filters in overnight tonight, and we'll see widespread 40s across much of the area.
An upper level bridge builds in across the central CONUS. Kept temperatures across the south and north central Nebraska on track with the warmer model outputs. A thermal ridge will push into the area Wednesday with the nose crossing into southwest Nebraska and even portions of north central Nebraska. Did keep temperatures cooler across the northwest Sandhills for a couple factors. Also 850 mb temps will be several degrees cooler, only around 8 to 10 degrees while elsewhere temps will be around 13 to 17 degrees celsius.
305 PM EDT Tue Apr 26 2022 High pressure continues to expand across the area and is acting to push afternoon Cu over the NE counties further east. The center of the high will move through the area overnight allowing for winds to instead become light and variable. Best chance for temperatures to drop below freezing will be from Carroll to Henry counties and to the north. However, thinking there is a higher potential for near to below freezing temps in the far NE so went ahead with a freeze warning in that area. At the same time, isentropic lift over a weak warm front starting to push north into the area will allow cloud coverage to increase for the end of the period.
240 PM EDT Tue Apr 26 2022 High pressure brings dry, cooler weather mid to late week. Lingering light showers behind the cold front will gradually taper off along the eastern mountains through early evening. This temperatures will likely produce areas of frost across most of the lowlands tonight into Wednesday morning. Expanded the frost advisory to include the Middle Ohio Valley, northeast KY, southwest Virginia, and all of the lowlands counties from overnight tonight into Wednesday morning. High temperatures will be mild, ranging from 60 degrees northeast KY, into the lower 40s northern mountains of WV. Models show a dry cold front pushing south reaching WV by Wednesday morning.
1153 AM CDT Tue Apr 26 2022 Key Messages: - A cold start to the day with widespread frost across the entire area and subfreezing temperatures along and north of Highway 36.
The cold front will continue to advance eastward today, with some instability developing in the afternoon. Widespread low VFR to MVFR conditions in light precipitation along a cold front this morning with scattered showers developing in the afternoon.
A cold front continues to move through the Northern Rockies this afternoon causing widespread precipitation with snow in the mountains and rain in the valleys.
Issued by National Weather Service State College PA 325 PM EDT Tue Apr 26 2022 As a cold front pushes off the east coast this evening, showers will end across northeastern Pennsylvania and the Catskills.