Aikyam-Lab/Synoptic-Bench huggingface dataset:
1122 PM EST Thu Feb 16 2017 Low pressure departing eastward from the Canadian Maritimes will result in decreasing snow shower and flurry activity across northern New York and Vermont this afternoon and evening with partial clearing. Will see a narrow ridge of high pressure building across the region from west to east Friday into Friday night, with generally dry weather conditions.
253 AM EST Fri Feb 17 2017 Warm front lifting north early today. Warm front lifts through this morning with some mid level clouds, but low levels are to dry for any measurable precip. Generally looking at 50s to low 60s across the lowlands today, with clouds clearing out from south to north as the warm front moves away.
256 AM EST Fri Feb 17 2017 A ridge of high pressure will slide east across the commonwealth today. A weak cold front will push into the region Sat night.
Southerly winds and upper level ridging will push temperatures into the upper 60s to lower 70s. An upper low will move from west Texas across the Red River Valley tonight.
An upper low directly overhead this morning will continue to shift northeast through the day. Strong mid-level winds across the higher terrain will attempt to mix to the surface. An intense upper trough bringing flooding rains and heavy snow to CA today will move east toward our region.
318 AM EST Fri Feb 17 2017 A warm front will move northeast into the Great Lakes today bringing an unseasonably warm airmass into our area.
Model guidance suggests high cloudiness spreads in from W to E late this afternoon through Tonight ahead of western Gulf Coast region trough, supporting warmer low temps in the 45-50 range, except lwr-mid 50s east of the I-95 corridor.
High pressure over the area today will keep clear skies and and light winds across the cwa today. This ridge will slide eastward through today and push off the GA/FL coast by 00z Sat.
1152 PM EST Thu Feb 16 2017 Low pressure departing eastward from the Canadian Maritimes will result in decreasing snow shower and flurry activity across northern New York and Vermont this afternoon and evening with partial clearing. Will see a narrow ridge of high pressure building across the region from west to east Friday into Friday night, with generally dry weather conditions.
For today, most locations will be a few degrees warmer the yesterday as south/southwesterly low level flow cont. Otherwise, will watch approaching closed low, currently over southwest Texas. This low will initially not have a lot of moisture to work with, but could produce some mid/high clouds across the area today.
248 AM EST Fri Feb 17 2017 Low pressure departing eastward from the Canadian Maritimes will result in decreasing snow shower and flurry activity across northern New York and Vermont this afternoon and evening with partial clearing. Will see a narrow ridge of high pressure building across the region from west to east Friday into Friday night, with generally dry weather conditions.
322 AM CST Fri Feb 17 2017 At H5 large ridge over the central CONUS. Trough moving into west Texas underneath the ridge. Several weaker waves moving through the Pacific Northwest and very large mature closed low over the Canadian Maritimes with resultant trough off the Atlantic Coast.
1122 PM CST Thu Feb 16 2017 A plume of high cirrus has been streaming southeastward over the area today within the broad 1000-700 mb warm advection regime on the eastern periphery of an upper ridge building across the plains. As the ridge axis progresses into the area on Friday, model soundings indicate less cloud cover, while 925 mb temps rise to 11-14C by late in the day. Upstream obs south of a warm frontal boundary this afternoon across southern Iowa, more indicative of our air mass for tomorrow, are in the 50s to low 60s as of 20Z.
A Pacific low pressure system will bring cooler temperatures, breezy winds, and chances of rain and high elevation snow to northern Arizona through the weekend. A weak trough is moving across northern Arizona this evening with mostly high clouds. Model forecasts continue to predict that a wet low pressure system will cause a period of active weather across northern Arizona from Friday through the weekend.
1014 PM MST Thu Feb 16 2017 The Tri State region currently resides wedged in between a frontal boundary and high pressure to the east. low pressure to the south and an approaching boundary over the Rockies. Closer to the CWA a weak trough resides over the Front Range providing the area with localized downslope SSW flow. These conditions are helping to keep the CWA clear at this time with temps ranging in the mid 40s thru the lower 50s. Warm air advection and westerly winds in advance of incoming cold front will keep temperatures mild tonight for this time of year. A high amplitude ridge persists over the western CONUS Friday night through the weekend, slowly making its way east.
1246 AM EST Fri Feb 17 2017 A warm front will develop and lift across the region tonight into Friday morning. Temperatures will drop overnight, however some rises in temperatures will occur as warmer air works in. Temperatures will be much warmer and well above normal for Friday. Warm front will push north of the entire forecast area Friday morning. Southerly low level flow will ensue with an upper ridge building into the region. Stayed on the cooler side of guidance for lows Friday night.
Deep layer ridging over the northeastern Gulf this morning will push eastward through the day as an upper level cut off low moves through the southern Plains and towards the lower Mississippi valley. As the upper level low moves closer, we'll also see an increase in upper level cloudiness in the afternoon.
Gusty southwest winds are expected mid morning through late afternoon as lee trough strengthens. Winds will become southwest and gusty mid/late morning Friday as a lee trough develops. /issued 349 PM CST Thu Feb 16 2017/ (Tonight and Friday) An upper level low that is currently located over northern Mexico will swing across West Central Texas overnight. Overnight low temperatures will be in the low to mid 40s. Above normal temperatures are forecast on Friday, with highs in the low to mid 70s, along with gusty winds of 10 to 20 mph.
A weak area of low pressure was noted at 850 mb in north central Mexico but 850 moisture looked sparse. Moisture was deeper at 700 mb and a 700 mb trough extended from the central Rockies into northern Mexico. At 300 mb, a well defined upper low was spinning near the Big Bend and this feature shows up very well in water vapor imagery. The upper low over the Big Bend will move east today and lift will increase over the eastern half of SE TX today. Radar is already showing precip and much of the rain is evaporating before reaching the ground since the lower levels of atmosphere remain very dry. Not sure how far rain will move inland today but the higher rain chances will be near the coast and maybe a tier of counties inland.
341 AM CST Fri Feb 17 2017 A split flow pattern persists across the Central CONUS today with a southern stream upper low over West-Central TX and a ridge over the Upper Mississippi Valley. Light RADAR echoes are occasionally popping up just west of the forecast area in the vicinity of the upper low center.
While there will be some fluctuations over the next seven days, above normal readings can be expected as periods of upper ridging and Pacific-origin systems fail to pull Canadian air southward into the central CONUS.
1240 AM MST Fri Feb 17 2017 The Tri State region currently resides wedged in between a frontal boundary and high pressure to the east. low pressure to the south and an approaching boundary over the Rockies. Closer to the CWA a weak trough resides over the Front Range providing the area with localized downslope SSW flow. These conditions are helping to keep the CWA clear at this time with temps ranging in the mid 40s thru the lower 50s. Warm air advection and westerly winds in advance of incoming cold front will keep temperatures mild tonight for this time of year.
An upper ridge will build across srn WI by late afternoon into the early evening. At the surface, a warm front will move nwd into srn WI today followed by a cold front for early Sat AM.
/issued 935 PM CST Thu Feb 16 2017/ High pressure is situated along the gulf coast. Lows tonight will run about ten degrees warmer than last night with highs Friday in the mid and upper 60s.
Early morning water vapor imagery/RAP analysis showed the circulation around a closed low spinning over west Texas and a mid level ridge over our CWA.
1237 AM EST Fri Feb 17 2017 Deep low pressure will remain over the Maritimes tonight. A weakening high pressure ridge will then approach from the west, and move across Friday night.
354 AM EST Fri Feb 17 2017 High pressure will bring clearing skies today along with seasonal temperatures.
444 AM EST Fri Feb 17 2017 A warm front will move northeast through the area this morning, winds becoming southwesterly with moderating temperatures. High pressure centered over the southeastern states will remain in control through tonight.
Convective showers have developed this evening along a passing Pacific cold front from near Butte northeast to Fort Benton, including the Helena and Great Falls areas, where wind gusts in excess of 45 mph occurred. However, a Pacific cold front moving through should put an end to lower elevation shower activity after that along with a general decrease in low/mid clouds areawide.
1226 AM EST Fri Feb 17 2017 VFR conditions will continue throughout the TAF cycle with a ridge of high pressure in place.
Similar conditions will then continue through the day as low pressure over the Plains sends the surface warm front into the Great Lakes. Upper heights will build steadily through Friday as mean upper trough over the northeast CONUS shifts east as deep low pressure system lifts into the Canadian maritime. The progression of the upper trough will allow upper ridging to translate eastward over the area during the next 24-36 hours. Southeast flow will then veer to south on Friday as a warm front lifts north into the area coincident with the building upper ridge.
1216 AM EST Fri Feb 17 2017 Warm front lifting north early today. Warm front lifts through this morning with some mid level clouds, but low levels are to dry for any measurable precip. Generally looking at 50s to low 60s across the lowlands today, with clouds clearing out from south to north as the warm front moves away.
Winds over the marine area have diminished and seas have laid down prompting the cancellation of the High Rip Current Risk. Deep layer ridge overlying the region will provide us with mild weather for at least the next few days with overnight temperatures trending cooler than normal and afternoon highs trending close to climatogical norms. For Tuesday, with the ridge coming into play, temps around to above seasonal expected, with around 90 west in the moister air to mid 90s east in the drier part of the airmass. Am going to continue the high risk of rip currents along area beaches for another 24hrs.
/issued 235 PM EDT MON JUN 20 2016/ Quiet weather pattern will continue through mid week under high pressure influence. clear skies and dewpoints in the 50s will result in mostly slightly cooler than normal lows for tonight. A warm west to southwest wind flow coupled with ample sunshine will result in slightly warmer than normal highs on Tuesday.
1029 PM EDT Mon Jun 20 2016 A strong cold front will move through the north country overnight with showers and thunderstorms.
High pressure aloft not going to be strong enough to keep all shower and thunderstorm activity down on Tuesday as sea breeze.
829 PM EDT Mon Jun 20 2016 A strong cold front will move through the north country overnight with showers and thunderstorms.
Upper level ridge over MT will move over the Dakotas on Tue.
Much of the CWA is under a mostly clear and dry southwest flow, as an upper low spins off the coast of Washington. An elusive cold front associated with this low is likely on the northwestern fringes of the area as of 8:30 pm MDT, evidenced by the gusty northwest winds occurring in Baker, Oregon. Dry cold front will move over the forecast area tonight, but the front is weak and will be hard to track and time its passage through TAF sites. Surface winds tonight will be southwest to northwest 5-15 knots, but may briefly gust to around 25 knots with the passage of the cold front.
A strong 601 dm 500 mb subtropical high over southern CO and ridging eastward into the mid MS and lower Ohio river valleys with 594 dm and higher 500 mb heights over CWA. Cold front expected to push just south of the central/SE Illinois forecast area to start the day Tuesday. This will result in a notable decrease in the heat for the high Tuesday with highs in the mid 80s. The cold front should stall out from NW MO to southern IL early in the day, lifting back northward as a warm front late in the day as low pressure deepens east of the Rockies and moves into the northern Plains. Along the warm front, thunderstorms should re- initiate.
The upper level ridge currently anchored over the Four Corners region will dominate the weather here in Central Alabama for the next several days. Several disturbances (MCSs) will ride along the northern edge of the upper ridge, but the main track of the systems will stay north of our forecast area.
High pressure will gradually give way to a little more of a northwesterly flow across the region through the forecast period.
858 PM CDT MON JUN 20 2016 Under a quiet high pressure night, the forecast is on track, so no changes planned at this time. For tonight, cool and dry high pressure was over the region late this afternoon and will build slowly east through the night into Tuesday. These southeast winds will bring in warmer air along with mostly sunny skies. The models all show the upper level low pressure area spinning off the Pacific Northwest coast late this afternoon kicking northeast and then east along the Canadian border tonight through Tuesday night.
Strong high pressure across northern Arizona will lead to very hot conditions on Tuesday.
724 PM EDT MON JUN 20 2016 A cold front over the western part of the area will push off to the east tonight then weak high pressure will build over the region tuesday.
Therefore, will likely allow the High Rip Current Risk statement to expire at midnight. Upper level ridge will remain across the area on Tuesday.
(Issued 251 PM CDT MON JUN 20 2016) The large ridge of high pressure over the southeast U. A weakening frontal boundary will attempt to drop southward out of the lower Ohio valley region tonight, and should make it into middle Tennessee by Tuesday afternoon.
A cold front was dropping southward out of the cornbelt and into the lower Missouri River Valley this afternoon.
With the ridge of high pressure still anchored to our west, conditions have been quiet across the board on this first official evening of summer. Dropped overnight lows down a degree or so, where upper 60s will be seen in NW AL and the lower 60s in NE AL, especially the Valleys.
VFR conditions will dominate the TAF period as the upper ridge further exerts control over the region. Some CU will redevelop by around 21/15Z, but convection will be more sparse on Tuesday afternoon with the upper ridge pulling in more dry air aloft.
For Tuesday, the upper ridge strengthens over the state and warmer air moves back over the state. Expect showers and thunderstorms Tuesday evening, mainly over the high terrain and south of I-70 over the plains before a cold front pushes south over the area around or after midnight. With the hot day followed by breezy conditions from the cold front, Tuesday nights low temperatures will likely be warmer than tonights along with poor humidity recoveries.
740 PM EDT MON JUN 20 2016 Shower and thunderstorm chances will increase tonight with the approach and passage of a cold front. Still better potential later with the approach of the cold front. A cold front tonight will be the forcing mechanism for any potential severe weather. 12Z NAM showed much higher CAPE values than the GFS, but the higher instability seems warranted with the higher dewpoints currently observed in Ohio. Temperatures on Tuesday should be closer to normal with cooler air behind the front.
/Issued 259 PM CDT MON JUN 20 2016/ Upper ridge centered across the 4-corners region today will expand eastward.
High pressure will settle southwest of the area this evening.
1217 AM EDT Tue Jun 21 2016 A strong cold front will move through the north country overnight with showers and thunderstorms.
Deep layer ridge overlying the region will provide us with mild weather for at least the next few days with overnight temperatures trending cooler than normal and afternoon highs trending close to climatogical norms. For Tuesday, with the ridge coming into play, temps around to above seasonal expected, with around 90 west in the moister air to mid 90s east in the drier part of the airmass. Am going to continue the high risk of rip currents along area beaches for another 24hrs.
A warming trend will continue through Tuesday as high pressure builds over the region. Water vapor satellite imagery continues to show a very large ridge of high pressure over much of the southern U. and a definite northward push of the ridge across Central and Southern California.
Under partly cloudy skies temperatures are holding in the lower 80s but with comfortable dewpoint readings near 70 degrees. Surface wise, a formidable Western Atlantic ridge extends well into the Southeast United States. A subtle low level (surface-850 mb) trough near Andros Island will migrate westward overnight and into our region by morning.
Models depict the high remaining in the same general location as the inverted trough undercuts the ridge and moves fromeast to west across Mexico and into the eastern Pacific throughTuesday.
Upper level ridge will remain across the area on Tuesday.
(Issued 913 PM CDT MON JUN 20 2016) With the ridge of high pressure still anchored to our west, conditions have been quiet across the board on this first official evening of summer. Dropped overnight lows down a degree or so, where upper 60s will be seen in NW AL and the lower 60s in NE AL, especially the Valleys.
Route 24 early this morning as a cold front moves A cold front moves through the area.
A weak upper low just offshore will move through the area tonight for a chance of showers. Weak high pressure will build over the region Tuesday.
High Pressure ridge still expected to build over the region from the north tonight with Mostly Clear skies and decent radiational cooling considering it is the latter part of June. Tuesday Morning lows in the lower to middle 60s inland will come within a few degrees of record lows again.
1044 PM EDT MON JUN 20 2016 A cold front will move across the region tonight and spread scattered showers and thunderstorms through the area. Cooler temperatures expected Tuesday with dry weather.
For Tuesday, with the ridge coming into play, temps around to above seasonal expected, with around 90 west in the moister air to mid 90s east in the drier part of the airmass. Am going to continue the high risk of rip currents along area beaches for another 24hrs.
Tuesday with southwest flow advecting drier air west of I-135, have bumped temperatures up a bit across central Kansas as deep mixing will promote drier air and warmer temperatures at the surface.
Moving into Tuesday, midlevel ridging centered over the four corners area will begin to build into Deep South Texas, with drier and hotter conditions returning.
Rather strong cold front (for June standards) has made progress into far NW Kansas this afternoon, with NE winds and cooler/drier air across Nebraska. Unfortunately, this refreshing airmass will not make it to SW Kansas, with the cold front boundary stalling out this evening just north of the I-70 corridor.
Currently, a closed upper low is situated off the Pacific Northwest Coast of Washington with downstream ridging over the northern Rockies. High pressure is situated over eastern Montana and the western Dakotas with abundant sunshine and generally light winds over the forecast area.
Satellite showing upper low just off the Oregon coast this evening. At the moment most of the instability and lightning is northeast of the low center over western Washington. Based on the trajectory of the low during the evening and overnight there is a chance for showers and isolated thunderstorms over the northern portion of the forecast area.
733 PM EDT MON JUN 20 2016 A cold front dropping across the area will bring scattered showers and thunderstorms to northern Indiana and northwest Ohio this evening.
By 2 PM on Monday, a cold front had become nearly stationary with a very slow southward movement almost directly on the KS/NE border. This shear profile leaves some question as to just how organized convection will be, but suggests that the very strongest storms in the areas of deepest instability may realize an effective shear on the order of 35 kts, which could result in brief mid-level mesocyclone generation and increased organization. By late evening through early morning, the low level jet stream intensifies and converges over northern KS just north of the surface boundary location.
1002 PM EDT MON JUN 20 2016 Dry high pressure over the area will settle a bit farther southeastward overnight.
801 PM EDT MON JUN 20 2016 Cold front crosses Tuesday.
924 PM EDT MON JUN 20 2016 Shower and thunderstorm chances will increase tonight with the approach and passage of a cold front. Temperatures on Tuesday should be closer to normal with cooler air behind the front.
Some subtle inversions from 850 to 600 mb are indications of more of an influence from the large ridge of high pressure over the south central and southwest US. Ridge over the desert sw will continue to build east tonight through the southern Plains and into the sern CONUS over the next few days.
736 PM EDT MON JUN 20 2016 Cold front crosses Tuesday.
With this, expect overnight lows to end up near or slightly cooler than what we saw this morning. Overall heights will change little as the elongated ridge to our northwest builds back over the area but warming temps aloft should mean daytime highs will end up 2-4 degrees warmer on Tuesday.
Thanks to a strong ridge of high press we had another very warm day today for inland locations with many spots in the mid 80s to lower 90s.
742 PM EDT MON JUN 20 2016 Dry high pressure over the area will settle a bit farther southward overnight.
Strong high pressure will remain in place through tonight. A weak and dry cold front will cross the state Tuesday.
905 PM EDT MON JUN 20 2016 A cold front will approach the region from the northwest tonight and cross the region Tuesday into Tuesday night.
1023 PM EDT MON JUN 20 2016 A cold front will move down from the Upper Great Lakes overnight and become nearly stationary near the Maryland border on Tuesday.
Tonight and Tuesday The latest RAP analysis and satellite/radar imagery show a cold front sliding south across lower Michigan and northern Illinois. Todays cold front will settle over the Ohio Valley to mid- Mississippi Valley by late tonight. Cooler temps ranging through the 50s. Should see some enhanced rather high- based cu form along the trough, aided by steep low level lapse rates. Highs ranging from the lower 70s north to near 80 south.
For tonight, cool and dry high pressure was over the region late this afternoon and will build slowly east through the night into Tuesday. These southeast winds will bring in warmer air along with mostly sunny skies. The models all show the upper level low pressure area spinning off the Pacific Northwest coast late this afternoon kicking northeast and then east along the Canadian border tonight through Tuesday night.
Tomorrow morning the boundary begins to lift northeast as a warm front which should bring threat for convection gradually to an end during the day on Tuesday.
1231 AM EDT TUE JUN 21 2016 Scattered showers and thunderstorms are expected tonight and part of today with the approach and passage of a cold front.