Aikyam-Lab/Synoptic-Bench huggingface dataset:
529 AM CST Mon Feb 3 2020 Lower clouds have been developing in the northern part of the forecast area and the higher clouds continue across the south. With the lower clouds and the warm air moving up over the colder air at the surface, there could be some freezing drizzle. Have kept the freezing drizzle in, but feel that the period for freezing drizzle might be shrinking. The trend is a little further to the south, so some of the northern counties may have little to no freezing drizzle, but the southern end might get a little more. The freezing drizzle is over around noon time and there will be a break this afternoon.
415 AM EST Mon Feb 3 2020 High pressure to our south will nose in today and make it dry.
615 AM EST Mon Feb 3 2020 High pressure and dry conditions will persist over the region through early Tuesday.
635 AM EST Mon Feb 3 2020 High pressure will keep the conditions VFR and the weather quiet through the TAF period. /issued 305 AM EST Mon Feb 3 2020/ High pressure over the area is forecast to dominate the weather through at least Tuesday morning.
Across the region this afternoon, skies are sunny as an area of low pressure sitting over eastern Colorado is providing strong WAA for most of the CWA on WSW flow, gusting to 30-35 mph at times.
356 AM CST Mon Feb 3 2020 The low pressure in Colorado will drift southeast today with its impact on North Dakota being clouds. A weak cold front was crossing the forecast area early this Monday morning with a narrow band of gusty winds, around 25 mph. This was likely snow flurries at the worst as observed and forecast soundings showed quite a bit of dry air in the lowest levels, leading to evaporation of anything actually falling from cloud. For tonight, as the low in Colorado drifts southeast even drier air will work in with a decrease in clouds. With high pressure and subsidence on Tuesday that should be the nicest looking day of the week - by that I mean with sunshine.
636 AM EST Mon Feb 3 2020 High pressure to our south will nose in today and make it dry.
/Issued 359 AM EST Mon Feb 3 2020/ High pressure ridge over the area will keep things dry for another day. This ridge will break down fairly fast allowing next frontal system into the area later this week. With mostly sunny conditions today and warm southwesterly flow, temps expected to get up into the lower to middle 70s across North and Central GA. The ridge keeping things dry today is currently centered over the central Gulf. Over the next 24 hours this ridge will move eastward across central FL becoming centered just off the eastern FL coast.
647 AM EST Mon Feb 3 2020 A weak disturbance crosses the area today with a few clouds along with scattered snow showers across the higher terrain. A weak ridge of high pressure will cross the region tonight. another unseasonably mild day and partly sunny with highs ranging from the 30s across the mountains to the lower and mid 40s elsewhere. A ridge of high pressure builds into the region tonight, with some lingering low clouds across the higher terrain otherwise a mainly clear night.
This will all stem from a slow moving upper level trough moving across the Intermountain West. Surface dew points will be increasing today ahead of this strong upper level trough which will keep relative humidity values from completely bottoming out. The aforementioned trough, currently with its axis just east of the Sierra Nevadas, will slowly move across the Intermountain west over the next 48 hours.
506 AM CST Mon Feb 3 2020 A trough of low pressure will approach from the west today and continue to bring changes to the weather. But just as the dendritic layer deepens and partially saturates the low levels begin to dry out. Cold conditions will continue into Tuesday as high pressure builds southward.
Temperatures are generally 5 to 13 degrees cooler than this time yesterday. Some spots in the Valley had reached around freezing at 3 am, such as Fairfield at 32 degrees (where wind is actually calm) and 33 at Beale Air Force Base (where the wind is light). Freezing temperatures could be more of an issue Tuesday morning. Northern winds could keep most areas north of I-80 near or above freezing, but lighter winds to the south could allow colder temperatures to develop.
Considerably warmer across the forecast area this morning versus yesterday at this time thanks to southerly winds, with current readings in the mid 40s to mid 50s. Yesterday ended up warmer than even most model guidance suggested with BNA reaching the 70 degree mark. With 850 temps today around 2 degrees C warmer than yesterday and WAA continuing to strengthen, have gone above guidance for highs with nearly all of the area expected to reach the low 70s.
Beyond the cycle of this TAF period: A strong cold front will move south through the region. This will all stem from a slow moving upper level trough moving across the Intermountain West. Surface dew points will be increasing today ahead of this strong upper level trough which will keep relative humidity values from completely bottoming out. The aforementioned trough, currently with its axis just east of the Sierra Nevadas, will slowly move across the Intermountain west over the next 48 hours.
417 AM EST Mon Feb 3 2020 High pressure and dry conditions will persist over the region through early Tuesday.
620 AM EST Mon Feb 3 2020 Mild, subtropical high pressure will expand across the Southeast through mid-week.
A mid/upper level ridge axis will be crossing the area this morning, followed by a deep SW flow this afternoon that will provide mild temperatures. On the back side of the ridge, we will have increasing high clouds through the afternoon.
331 PM EST Mon Feb 3 2020 The afternoon surface analysis shows frontal boundary is stretched across portions of the Ohio Valley and low pressure in Missouri.
/issued 403 AM CST Mon Feb 3 2020/ A broad upper level ridge currently encompasses then central 1/3 of the country. Temperatures will moderate today as a result of increasing heights from the building high pressure. A longwave trough will slowly dig south from the Rockies to Texas over a 48 hour period, beginning Tues morning.
/Tonight through Monday/ Afternoon water vapor imagery depicts an expansive upper trough over the western two-thirds of the CONUS. The cwa has been on the cooler side of this baroclinc zone today in a cold air advection/northerly wind regime. Deep upper trough slowly pushes across the central Rockies Tuesday.
Surface analysis charts shows a low pressure system over eastern Kansas which is what will bring us our next chance for rain. Temperatures range from the lower to upper 50s.
103 PM EST Mon Feb 3 2020 High pressure and dry conditions will persist over the region through early Tuesday.
330 PM EST Mon Feb 3 2020 High pressure will build across the area from the southwest overnight, remaining in control through Tuesday.
1122 AM EST Mon Feb 3 2020 A ridge of high pressure will slide off the east coast this afternoon allowing a southwesterly flow of much milder air to flow into the region for today and Tuesday with well above normal temperatures.
Although plenty of forcing remains evident on WV imagery over MT/WY in advance of the primary upper trof, have low confidence in additional accumulating snowfall on the nrn/nern periphery of prior headlines due to the arriving dry air and continued digging of the trof as it intensifies. Water vapor imagery shows the upper trough now crossing the Great Basin, with strong forcing aloft across Wyoming and just into far western South Dakota. The cold front has pushed well south of the CWA, with temperatures dropping into the upper teens to upper 20s. High pressure is building into central Canada into North Dakota. Strong upper ridging will build across the western CONUS, with northwest flow across the northern Great Plains.
250 PM EST Mon Feb 3 2020 High pressure and dry conditions will persist over the region through early Tuesday.
Low pressure diving south into Nevada and Utah will leave enough moisture across the area to continue light snowfall into the afternoon hours.
Lower clouds have been developing in the northern part of the forecast area and the higher clouds continue across the south. With the lower clouds and the warm air moving up over the colder air at the surface, there could be some freezing drizzle. Have kept the freezing drizzle in, but feel that the period for freezing drizzle might be shrinking. The trend is a little further to the south, so some of the northern counties may have little to no freezing drizzle, but the southern end might get a little more. The freezing drizzle is over around noon time and there will be a break this afternoon.
130 PM EST Mon Feb 3 2020 Weak upper ridging extends over Florida, then northward to the Great Lakes region. This ridge slowly shifts east keeping us in a more warm and humid southerly wind flow through the middle of the week. Upper troughing that is out west will slowly progress eastward and will be located over the central U.
Highs will be near normal ranging from around 70 along the Atlantic coast to the lower to mid 70s across the interior.
Upper trough across the western US will deepen tonight as SFC/ LL boundary sets up from the desert southwest into the OH valley. Deep upper trough draws in the the plains, while SFC/LL boundary settles over the mid-state. frontal boundary is just east of us but it will take at least through Fri for trailing upper trough to pass. This trough has a decent moisture source thus at least scattered shower seems possible.
Models are hinting at some scattered snow showers tonight and a re-enforcing cold front descends south through our CWA from Saskatchewan.
Tonight and Tuesday The latest RAP analysis and satellite/radar imagery show a deep trough positioned across the western states and confluent mid- level flow over the northern Plains and western Great Lakes ahead of this trough. Meanwhile, a secondary cold front is moving southeast across northwest Wisconsin early this afternoon. As arctic high pressure builds southeast into the region, forecast concerns generally revolve around clouds and temps. The cold front will continue to move southeast across northern Wisconsin this evening, switching winds to the north. Cold advection will increase behind the front while arctic high pressure noses into the state. Precip will remain tied to the primary frontal system over the Ohio Valley while high pressure draws closer to the state.
Arctic high pressure will build in from the northwest tonight. However, clouds will be the confounding factor tonight as the upper trough moves in. On Tuesday night, winds will increase out of the southwest as the high shifts farther southeast, but skies will be mostly clear.
At 330 AM, a strong upper level trough was tracking through the Rockies, and bringing heavy snow to the mountains of Utah and Wyoming. Meanwhile lee troughing was in place over the High Plains of Colorado and a surface cold front was sagging south from Nebraska into Kansas. Behind the cold front, low clouds were widespread over central and western Nebraska, and were slowly building east toward the Missouri River Valley.
but enough cold air works in to support freezing drizzle in places.
1033 AM EST Mon Feb 3 2020 High pressure will prevail through Tuesday, then weaken during mid week.
1152 AM CST Mon Feb 3 2020 A trough of low pressure will approach from the west today and continue to bring changes to the weather. But just as the dendritic layer deepens and partially saturates the low levels begin to dry out. Cold conditions will continue into Tuesday as high pressure builds southward.
1026 AM EST Mon Feb 3 2020 High pressure and dry conditions will persist over the region through early Tuesday.
Overall a pretty quiet day is anticipated, with steady northwest winds and cooler temperatures. High clouds cover most of the fcst area as SW flow exists 500-300 mb out ahead of southward moving 500 mb trough over the central Rockies. Expect skies to become mostly clear tonight north and clearing south, then a mostly sunny Tuesday as the 500 mb low drops into the southern Rockies and upper flow becomes more northwest kicking the high clouds out.
1252 PM EST Mon Feb 3 2020 High pressure will prevail through Tuesday, then weaken during mid week.
Rain showers will also increase ahead of the cold front, mainly for our northwestern counties tomorrow morning.
128 PM CST Mon Feb 3 2020 Surface ridging associated with high pressure over the Canadian Prairies continues to build into the Upper Mississippi Valley this afternoon. A band of clouds tied to a weak cold front dropping through is progressively swallowing up the forecast area. All this has led to a cooler day across the region with highs in the 30s to around 40.
1011 AM CST Mon Feb 3 2020 Overall a pretty quiet day is anticipated, with steady northwest winds and cooler temperatures. High clouds cover most of the fcst area as SW flow exists 500-300 mb out ahead of southward moving 500 mb trough over the central Rockies. Expect skies to become mostly clear tonight north and clearing south, then a mostly sunny Tuesday as the 500 mb low drops into the southern Rockies and upper flow becomes more northwest kicking the high clouds out.
A warm front has developed north of the Ohio River this morning, with a deep low pressure center situated over central Kansas.
147 PM CST Mon Feb 3 2020 High pressure will slide in overnight from southern Saskatchewan, promoting light winds and clearing skies. Some brief light snow will be possible across far west tonight as a secondary weak cold front passes through, so introduced a larger area of slight chance to chance precipitation chances here. Tuesday is shaping up to be a beautiful day with a mostly sunny sky and expansive high pressure at the surface. Highs will remain on the cool side, ranging from the lower teens above zero east to the 20s across the west.
904 AM CST Mon Feb 3 2020 We recently received a report from Rooks county of some slick highways due to light freezing drizzle/mist. Lower clouds have been developing in the northern part of the forecast area and the higher clouds continue across the south. With the lower clouds and the warm air moving up over the colder air at the surface, there could be some freezing drizzle. Have kept the freezing drizzle in, but feel that the period for freezing drizzle might be shrinking. The trend is a little further to the south, so some of the northern counties may have little to no freezing drizzle, but the southern end might get a little more. The freezing drizzle is over around noon time and there will be a break this afternoon.
Scattered showers will taper off today as weak high pressure builds into the region. A warm front will arrive Tuesday afternoon and evening.
242 PM EST Mon Feb 3 2020 High pressure and dry conditions will persist over the region through early Tuesday.
A few breaks may develop in the clouds later this afternoon and evening, but more clouds will be moving back in overnight as a trough slowly moves out of the Rockies and into the Central Plains. The trough will continue to weaken as it moves into the area, but it still should bring light snow to portions of the area starting after midnight.
As high pressure continues to build into the area, these clear conditions will persist through Tuesday night.
At the surface a cold front has moved through much of the Texas Panhandle and is headed southward. High-res models indicate that the atmospheric column should moisten later this evening as the moisture meets the stalled cold front across the central part of the CWA. Precipitation will start up again during the latter part of Tuesday morning and continue for about the next 36 hours as the upper level trough pushes eastward. As this occurs much colder air from the north will push into the FA and force the stalled surface cold front south of the area.
Winter Weather Advisories and Winter Storm Warnings elsewhere look to be in decent shape as the upper trough slowly moves across central Wyoming and western Colorado. Snowfall will continue, though rates should decrease as the lift decreases somewhat with the upper trough axis moving into eastern Wyoming and central Colorado.
444 PM MST Mon Feb 3 2020 WV imagery this afternoon depicts deep troughing over the wrn U. An associated upper low center is to the W/NW of the Four Corners region, and a baroclinic leaf structure downstream is suggestive of continued cyclogenesis over the srn Rockies this afternoon. However, very cold low-to-midlevel air atop the hills will promote the development of very steep lapse rates in the lowest 1-2 km AGL, which will likely lead to at least a few snow showers.
As a result, expect isolated to scattered showers, with the highest Pops across the Northwest Hill Country and southern Heartland.
A cold front will drop SE into the state late in the period.
443 PM CST Mon Feb 3 2020 This morning started with a bit of fog around the area that burn off after sunrise allowing temperatures to climb into the low 70s most locations. Currently a cold front is located in the middle plain states dropping to the south as upper level an upper level trof is swinging down into the southern rockies. This next event will be a slow progression as the trof aloft deepens and slowly moves into west Texas through the next 24 hours.
The low level forcing decreases tomorrow but mid to upper level QG ascent persists over our CWA. The upper trof will exit eastern sections of Colorado on Tuesday evening as snowfall diminishes to just a few flurries over the mountains and plains.
Tuesday, the upper level low pressure trough will begin moving more through the eastern portions of our region, as warmer temperatures and higher pressures approach our area from the west.
Ceilings should start lowering shortly thereafter, although freezing precipitation won't start until Tuesday night. As a result, expect isolated to scattered showers, with the highest Pops across the Northwest Hill Country and southern Heartland.
Increasing low level moisture may lead to patchy or areas of drizzle, possibly briefly changing to freezing drizzle. Tuesday: Once again only trace amounts of freezing drizzle or very light snow or flurries in our southern cwa. Highs will range from the mid 20s nw to the lower 30s se.
404 PM CST Mon Feb 3 2020 The ridge that has influenced our region over the last couple of days has began to weaken and slowly move east. This, has allowed a low pressure system - currently over Kansas - to slowly drag east-northeast with the cold front stretching from central KS into OK and northern TX. The low pressure system will slowly track through the Great Lakes region.
304 PM CST Mon Feb 3 2020 Early this afternoon a broad area of low pressure was forming over eastern Kansas along a stationary front that extended eastward into central Missouri. Moisture will continue to spread into southern Missouri and southeast Kansas this evening as the aforementioned surface wave tracks eastward, pulling a cold front into the region.
310 PM CST Mon Feb 3 2020 Dry conditions continue through Tuesday night, as high pressure builds into the region. We didn't make much adjustment to the lows tonight, which will range from the single digits below zero over northeast Minnesota, and single digits above zero over northwest Wisconsin. High pressure will gradually build into the region from the Canadian Prairies Tuesday, with highs in the single digits to middle teens above zero.
524 PM CST Mon Feb 3 2020 (This evening through Tuesday) Strong cold front, located across western into northern Oklahoma this afternoon will continue to move south across the area tonight. Will maintain precip chances mainly across southern/southeast Oklahoma and north Texas tonight as a minor upper wave lifts north through east Texas interacts with this cold front could see some showers and possibly a few thunderstorms. Should see a bit of a lull in the activity on Tuesday as minor wave moves east and main upper trough begins to make the turn east out of the baja area.
549 PM CST Mon Feb 3 2020 Quiet and cooler weather continues over the next few days as Canadian high pressure builds into the Upper Midwest. A weak cold front along the leading edge of this cold airmass continues to work through the area today, with temperatures already dropping into the teens this afternoon across portions of central Minnesota. tuesday night is shaping up to be one of our coldest nights since mid-January, with mostly clear skies and calming winds expected as high pressure centers over the region.
/issued 404 PM CST Mon Feb 3 2020/ The ridge that has influenced our region over the last couple of days has began to weaken and slowly move east. This, has allowed a low pressure system - currently over Kansas - to slowly drag east-northeast with the cold front stretching from central KS into OK and northern TX. The low pressure system will slowly track through the Great Lakes region.
308 PM CST Mon Feb 3 2020 Quiet and cooler weather continues over the next few days as Canadian high pressure builds into the Upper Midwest. A weak cold front along the leading edge of this cold airmass continues to work through the area today, with temperatures already dropping into the teens this afternoon across portions of central Minnesota. tuesday night is shaping up to be one of our coldest nights since mid-January, with mostly clear skies and calming winds expected as high pressure centers over the region.
A few pockets of sunshine are poking through the higher cloud deck as GOES imagery shows a few lower clouds developing over Lake Superior this afternoon. Model soundings slowly trend cooler through the night as CAMs suggest LES to pick up near 12Z tomorrow morning.
Temperatures in the north, where lows were in the low 30s this morning in many locales, continue to trail behind much of the rest of the forecast area. For tonight, upper level ridging will amplify overhead in response to a deep trough dropping southward across the four corners region out west before relaxing a bit on Tuesday as the western trough shifts east.
Subfreezing temperatures are likely in the North Bay Valleys late tonight and early Tuesday, and across much of interior Monterey County and San Benito County both tonight and again Tuesday night. Overnight lows are expected to be near freezing in most other inland locations, as well as in patchy locations near the coast.
537 PM EST Mon Feb 3 2020 High pressure and dry conditions will persist over the region through early Tuesday.
/issued 443 PM CST Mon Feb 3 2020/ This morning started with a bit of fog around the area that burn off after sunrise allowing temperatures to climb into the low 70s most locations. Currently a cold front is located in the middle plain states dropping to the south as upper level an upper level trof is swinging down into the southern rockies. This next event will be a slow progression as the trof aloft deepens and slowly moves into west Texas through the next 24 hours.
528 PM CST Mon Feb 3 2020 Dry conditions continue through Tuesday night, as high pressure builds into the region. We didn't make much adjustment to the lows tonight, which will range from the single digits below zero over northeast Minnesota, and single digits above zero over northwest Wisconsin. High pressure will gradually build into the region from the Canadian Prairies Tuesday, with highs in the single digits to middle teens above zero.
516 PM CST Mon Feb 3 2020 Early this afternoon a broad area of low pressure was forming over eastern Kansas along a stationary front that extended eastward into central Missouri. Moisture will continue to spread into southern Missouri and southeast Kansas this evening as the aforementioned surface wave tracks eastward, pulling a cold front into the region.
816 PM EST Mon Feb 3 2020 High pressure over the region will drift east well out into the Atlantic Ocean over the next couple of days with a southerly flow developing on the back side helping to bring warmer moister air back into the forecast area.