Aikyam-Lab/Synoptic-Bench huggingface dataset:
409 AM CST Sun Jan 22 2017 As the main upper level low pressure system continues to move east along the Red River, moisture wrapped around the system will continue to bring showers across the region. With current temperatures still well above freezing, precipitation types have consistency reflected just rain across the Panhandles. Once we go into the afternoon hours on Sunday, winds will begin to diminish slowly throughout the day as an upper level ridge axis moves east towards the Panhandles region. With some good downsloping off the high terrain to our west, high temperatures will rebound to lower and perhaps even a few mid 70s for parts of the southern TX Panhandle by Monday.
An upper trough will bring showers at times through tonight.
/Issued 342 AM CST Sun Jan 22 2017/ Upper level low currently centered over southwest OK/northwest TX with a well-defined mid level frontogenetic band extending from west central AR into northwest OK. As the low moves east roughly along the Red River today, expect zone of strongest lift to pivot north and become more focused across northwest AR into northeast OK before shifting east of the area late this afternoon. This system will quickly move east of the area by this evening with diminishing winds and clearing skies resulting in a cooler night, but still at or above normal.
An area of low pressure over North Dakota will bring westerly winds and somewhat drier air into the CWA today. Will the low clouds and fog come back again tonight? A majority of the models suggest the fog will finally leave the CWA as much drier air moves into the region from the west. A deep trough currently off the west coast will send upper level energy into the Central Rockies by tonight. The upper level jet support will cause the development of a lee side trough over the front range of the Rockies by Monday.
Many roads already have black ice in place from refreeze, and therefore any snowfall on top of black ice (especially on bridges and overpasses) could further reduce vehicle traction.
520 AM CST Sun Jan 22 2017 MVFR conditions will prevail through much of the day today, as a strong low pressure system and associated frontal boundary move through the region. Today Through Monday Night Showers and thunderstorms will continue to develop this morning, as a cold front pushes into the state, and a cutoff upper low over the Red River Valley of Texas and Oklahoma moves into the Arklatex Region. Isolated/ scattered thunderstorms will be possible, as the upper low provides enough elevated instability. Upper low will move eastward tonight, with precipitation ending. Temperatures will be a little cooler tonight and Monday. Thus, temperatures, though cooler, will still remain above seasonal averages.
626 AM EST Sun Jan 22 2017 A warm front will extend through the forecast area today ahead of strong low pressure. The low will be near the area tonight. The low will begin to lift north of the region Monday.
Time frame for the highest wind gust potential looks to be late morning into the early afternoon, roughly 16Z to 20Z and have noted this in prevailing lines for KAUS/KSAT/KSSF. Around sunset, the lower levels will decouple and wind gusts will subside.
1036 PM MST Wed Nov 30 2016 Latest water vapor loop is showing the weak upper level trof continuing to push southeast from the northwest. This trof will broaden the upper level influence across the western portions of the forecast area tonight through Friday morning, as the trof dives into the desert southwest by Friday evening. Very little if any snowfall accumulation is expected in the lower elevations, but it may produce a few inches of snow in the mountains.
105 AM EST Thu Dec 01 2016 A cold front will cross the area early this morning. High pressure will then build over the Eastern U.
236 AM EST Thu Dec 1 2016 Cooler high pressure to end the work week.
104 AM EST Thu Dec 1 2016 A trough of low pressure across the Great Lakes will keep clouds and seasonally cool temperatures across the area through the end of the week. Showers and gusty winds associated with a crossing cold front should continue to exit the area tonight. After a brief period of clearing, clouds should return with cold advection and upper troughing as a closed upper low moves across Ontario. Gradually colder though the period as a mid level trough slowly moves across eastern Canada. A fairly dry column will keep any accumulations in the ridges and north of I-80 light.
TES Continued dry and cold conditions Thursday night through Friday night with surface ridging over the area.
Moisture continues to wrap around the weakening and exiting stacked low pressure system centered over the northern Great Lakes early this morning. The low levels remain fairly moist overnight, but any forcing is weak.
325 AM CST Thu Dec 1 2016 Upper low has moved east to the Great Lakes Region while a new one comes down from the Canadian NW.
/issued 628 PM CST Wed Nov 30 2016/ Updated for 00Z aviation discussion 00Z TAF discussion: VFR flight conditions are expected through the next 24 hours as high pressure moves into the region. Latest satellite imagery showed a closed upper low centered over the Upper Mississippi Valley. This was associated with an upper trough which dipped down into the Lower Mississippi Valley. Some cold advection winds from the tight pressure gradient in the wake of the cold front was making its way to the surface in the form of occasional 20-25 mph wind gust. As far as temps are concern lows tonight will be from the lower 30s north to the middle 30s elsewhere. Highs for Thursday will range from the upper 50s to the lower 60s.
Issued by National Weather Service Birmingham AL 352 AM EST Thu Dec 1 2016 High pressure will begin to build into the area through Friday as the cold front exits stage right.
With the light winds and clear skies, overnight lows are expected to drop to or below freezing across the majority of the area tonight. Models continue to show an upper trough digging across the western U. Eventually, a portion of this trough will become a cut-off low over Baja with the rest of the trough advancing east across the central U.
Clouds will linger a bit longer across the north as an upper low slowly lifts out of the Great Lakes region, but should exit the area by evening. Seasonable temperatures are expected, with highs in the upper 40s to mid 50s and lows tonight near freezing.
/issued 857 PM CST Wed Nov 30 2016/ A deep mid-latitude cyclone is moving very slowly to the east across the upper Midwest, with a strong jet extending from the Mid-South, northeast into the Great Lakes. Winds will become light overnight, which should promote fair radiational cooling conditions, with temperatures falling into the low/mid 30s by sunrise.
1156 PM EST Wed Nov 30 2016 A trough of low pressure across the Great Lakes will keep clouds and seasonally cool temperatures across the area through the end of the week. Showers and gusty winds associated with a crossing cold front should continue to exit the area tonight. After a brief period of clearing, clouds should return with cold advection and upper troughing as a closed upper low moves across Ontario. Gradually colder though the period as a mid level trough slowly moves across eastern Canada. A fairly dry column will keep any accumulations in the ridges and north of I-80 light.
Weak high pressure aloft will prevail through Thursday.
1257 AM EST Thu Dec 1 2016 A developing area of low pressure will move through the Gulf of Maine tonight into Thursday. A left over trough of low pressure over the region Friday into the weekend will keep cloudy skies and occasional snow showers. Low pressure will moving away through the Maritimes Thursday night. Some moisture wrapping around the low in combination with the upper level trough over the north will result in some snow showers over northern and western areas. A light additional accumulation of snow is possible over some of the higher elevations across the north and west.
WV imagery indicates an upper level trough of low pressure lifting slowly northeast across the Great Lakes. Near the surface, an area of high pressure remains situated across the Colorado Rockies. Winds will be fairly light during the overnight period, so temperatures should be able to radiate down to the lower teens northwest to lower 20s southeast.
326 AM EST Thu Dec 1 2016 Deep low pressure over the Great Lakes region will continue to provide the North Country with unsettled weather through the end of the week, and into the first half of the weekend.
110 AM EST Thu Dec 1 2016 A cold front has moved east of the area this evening. High pressure will build in early in the weekend. Line of showers in association with a surface cold front has pushed east of the area this evening with cloud cover moving into the area from the west. Prev Discussion-> Cold front will continue across the forecast area late this afternoon and be east of the area this evening. Large closed low over the Great Lakes at the beginning of the period will translate northeast leaving a west to northwest upper flow across the region. As high pressure starts to build in Friday night, clouds will finally diminish which will allow temperatures to fall into the 20s.
1200 AM CST Thu Dec 1 2016 At 3 PM, a low pressure area was centered over west-central Wisconsin. Any snow amounts from late this afternoon into tonight will be mainly confined to southeast Minnesota, northeast Iowa, and the higher terrain in western Wisconsin. With extensive cloudiness and neutral temperature advection at both the surface and aloft tonight, did not deviate much from the low temperatures that occurred this morning. For Thursday, the surface and upper level low will slowly move east northeast across central Wisconsin during the morning and upper Michigan during the afternoon.
127 AM CST Thu Dec 1 2016 High pressure is now building into Central Alabama this morning and will be in control of the weather through Friday nights.
little to no accumulation is expected as by the time temperatures drop to near the freezing mark. JW 00Z TAFS: A cold front passing through extreme eastern WA and into the ID Panhandle will spread a mix of snow and rain.
249 AM CST Thu Dec 1 2016 The upper level low over the northern Great Lakes will continue to shift east today. Expect slight breezes to develop by mid to late morning as the upper level trough axis swings through the region. Brief ridging on Friday will allow for slightly warmer temps with highs near seasonal norms.
1045 PM CST Wed Nov 30 2016 Stacked upper low pressure system over Minnesota and Wisconsin today, with a broad area of clouds and lingering light precipitation. Lows tonight will be in the low 30s, only rising into the mid 30s tomorrow.
327 AM CST Thu Dec 1 2016 After a cold and dry start to the morning with most locations in the 30s, upper level high pressure will build to the east today and low level warm air advection will ensue. The increase in low level moisture will yield a warmer night with lows generally in the 40s. Big changes will begin to take shape across the western CONUS Friday with the development of a strong low pressure system. Large scale upward vertical motion will increase Friday night as a 130 knot jet sets up on the east side of a deep upper low centered over Northern Mexico.
333 AM EST Thu Dec 1 2016 Low pressure is tracking into eastern Canada. A cold front has moved off the east coast.
920 PM MST Wed Nov 30 2016 There may be a tad of clouds and a few flurries over the high mountains along the divide. Dry and cool air are in place over the state this afternoon with weak upper level ridging also in place. Temperatures will be similar to the highs we saw today. Then milder over the weekend with the area between the upper low well to our south and the next system that will be approaching from the northwest.
Dry conditions will continue across western Kansas today and tonight as a prevailing zonal flow aloft persists across the Western High Plains along with much drier air in the lower/mid levels. Near normal temperatures are likely again today with little change expected to the general air mass across the high plains of western Kansas.
Upper low over the nrn midwest has wrap arnd clouds associated with it but these clouds should stay north of the cwa. The previously mentioned mid-level trough is predicted to spread east-northeastward into southern Quebec and New England on Thursday- Thursday night. During this same period, a pair of upstream 500-mb waves will dig southeastward into the Great Basin and Baja peninsula before phasing into a more amplified trough over the southwestern deserts on Friday. After a mostly sunny but cooler day tomorrow featuring highs in the mid 50s, the combination of clear skies and calm winds should allow for efficient radiational cooling Thursday night and lows will drop into the u20s/l30s for most locations. Gradual warming of 850 mb temps will support highs approximately 1-2 degrees warmer on Friday.
114 AM EST Thu Dec 1 2016 A strong low pressure system over Wisconsin will move slowly northeast over the next couple of days causing mostly cloudy and colder conditions in our area with scattered rain and snow showers over southern Michigan and far northern Indiana. Lows the next couple of nights will be in the lower to middle 30s with highs Thursday and Friday in the upper 30s to lower 40s. Cold air advection underway and cold wedge to deepen overnight as upper low over the upper Midwest drifts closer. Thermal profiles inland will support mainly snow showers but modifying effects of Lake Michigan on boundary layer will keep sfc wet bulb temps above freezing and may lead to a rain and snow mix at times. Troughiness to remain over the Lakes Thursday with a much colder and cloudy day.
Upper low to quickly push east into the Great Lakes region by early Thursday. Could see some sun peek through across the south, however still expect stratus to linger closer to the low across northern Iowa through the day.
354 AM CST Thu Dec 1 2016 H5 analysis from earlier this evening, had closed low pressure centered over southwestern Wisconsin with a trough of low pressure extending south into the Ohio valley. East of the trough, high pressure was centered over the Bahamas with a ridge extending north into the Canadian Maritimes. West of the low and trough, a high amplitude ridge extended from Montana into northern Saskatchewan. A decent pressure gradient extended east of the high from North Dakota into Minnesota. This will hold highs back into the lower 30s. This will help to hold lows in the lower 20s.
259 AM CST Thu Dec 1 2016 Forecast challenge will be potential for freezing drizzle during the early morning hours. This mid level dry layer will continue to sink south throughout the night and should cut off any remaining light snow with the loss of ice in the column, however there is a potential for patchy freezing drizzle behind it. Will keep the patchy wording in through mid morning and re-evaluate at the 7 AM update, but confidence is decreasing for freezing drizzle. With the cloud cover and northerly flow temperatures should remain in the low 30s. A ridge of high pressure moves over western ND and will keep light northerly flow and some cold advection over the area.
336 AM CST Thu Dec 1 2016 Main forecast highlight in the short term period will be freezing drizzle about northwestern, central, and eastern ND this morning. Currently, northwest flow aloft with a ridge of weak high pressure over the Northern Plains. Dry air aloft (decreasing seeder/feeder ice crystals into the boundary layer of super-cooled water) advecting south across the local area and coupled with low level omega/lift is contributing to areas of freezing drizzle across northwest and central parts of the state, noted at observing sites and area web cams. Low level omega decreases after mid-morning so will include freezing drizzle in the forecast through the AM hours and remove afterwards.
331 AM EST Thu Dec 1 2016 A cold front will make its way off the coast this morning.
Evening water vapor imagery and objective analysis depict a rather diffuse upper low rotating through the interior Pacific Northwest/northern Rockies this evening. This wave will gradually translate eastward tonight through Thursday, with the southern extension of the mid level trough brushing northern Utah late tonight through Thursday morning. IFR conditions in snow should develop with a cold front after about 15-16z lasting until about 19-20z.
A broad upper trough covers much of CONUS this morning, with the stacked storm system well to our east over the Great Lakes. The storm system continues to have lingering local effects over Northeast Montana this morning with a broad band of low stratus and snow showers and possibly patchy freezing rain that is affecting mostly eastern zones. Models show a secondary trough pushing through the Northern Rockies. Tonight the secondary trough starts its movement south through the Great Basin into the Desert Southwest, taking most moisture and energy away from our region. Due to widespread stratus however, light snow, flurries and freezing rain are possible. Friday the local region will be in the quiet and dry area between two troughs going in opposite directions.
415 AM EST Thu Dec 1 2016 Upper level low pressure will be entrenched north of the Great Lakes region, bringing westerly flow to the Ohio Valley. High pressure will build in early in the weekend.
340 AM EST Thu Dec 1 2016 A cold front crossing the eastern Midlands will move off the coast by sunrise.
1135 PM EST Wed Nov 30 2016 A cold front will cross the area overnight.
1244 AM EST Thu Dec 1 2016 A cold front exits overnight. Cooler high pressure to end the week.
little to no accumulation is expected as by the time temperatures drop to near the freezing mark. As the system moves east and is replaced by a short wave ridge should see gradually rising CIGS over Eastern Washington Thursday afternoon and evening with drying in the boundary layer.
1249 AM EST Thu Dec 1 2016 A cold front crossing the Midlands will move off the coast by sunrise.
413 AM EST Thu Dec 1 2016 Upper level low pressure will be entrenched north of the Great Lakes region, bringing westerly flow to the Ohio Valley. High pressure will build in early in the weekend.
A cold front is approching the area from the northwest this morning. With the weak influence from the broad upper trough the front will move over south Florida and weaken further. Behind the front is an area of high pressure that will stay centered north of Florida but provide some moderately cooler and drier air but still above averages for this time of year.
RMcQueen The main focus in the extended remains on the prospects for precipitation Friday into the weekend, with a little wintry precipitation still not out of the question across the northwest zones, though overall NWP guidance has trended slightly warmer.
300 AM EST Thu Dec 1 2016 A trough of low pressure across the Great Lakes will keep clouds and near seasonal temperatures across the area through the end of the week. Cold advection and a crossing upper trough extending from a closed upper low in Canada should maintain cloudy skies across the region today. Maintained slight to low chances for snow showers N of I 80 where better upper support is progged, and also in the ridges with less than optimal westerly upslope flow. Weak, broad upper troughing is expected to persist Friday as the closed low drifts east. This should continue to maintain cloud cover with low to slight chance POPs for snow showers N of I 80 and in the ridges.
936 PM MST Wed Nov 30 2016 Upper low is over MN/WI, gradually shifting eastward. Next upper trough will approach the region Thursday.
242 AM EST Thu Dec 1 2016 Cooler high pressure to end the work week.
1121 PM EST Wed Nov 30 2016 A cold front has moved eastward through the area and colder air is filtering in in its wake. The parent low pressure across the Upper Great Lakes will continue to slowly shift east. The low will drift to southern Quebec tomorrow and will pull a secondary cold front south across the area on Friday night.
255 AM CST Thu Dec 1 2016 Some light precip/drizzle will remain possible through the morning within cyclonic flow aloft, but coverage should gradually decrease as the upper low pulls away.
247 AM CST Thu Dec 1 2016 Quiet short-term forecast as the upper low over the Great Lakes region continues to slide off to the northeast. Any lift generated by the upper low and contributing to flurries yesterday has also shifted far enough out of the region that even where stratus lingers today in northeast MO, should not see any additional flakes fly.
225 AM CST Thu Dec 1 2016 Starting off with cold conditions early this morning with temperatures already as of 2 am in the 30s with many locations only a few degrees from freezing. This due in part to clear skies and ridging at the sfc which is resulting in premium radiational cooling conditions. This ridge will slowly shift eastward today allowing for a southerly component to our winds which will result in a descent warmup this afternoon. disturbances will lift out of the base of this trough.
634 AM CDT Thu Apr 13 2017 High pressure remains over the area this morning. Today Through Friday Night An upper ridge is over the Plains this morning with an upper low pressure system near the Pacific Northwest. This low will not move much today or tonight as it will be blocked by the upper ridge to the east. An upper low will develop over the high Plains this afternoon and move northeast through the Plains through Friday. High pressure will remain over the southeast U. A cold front in Nebraska and Iowa this morning will become stationary. then move north on Friday as a warm front.
The upper level trough along the west coast will send a cold front into northern and western Utah late this afternoon and evening.
1030 AM EDT Thu Apr 13 2017 Upper ridge will slowly begin to build in from the west today. Onshore winds will pick up a bit near the Atlantic Ocean this afternoon as high pressure north of the area begins to wedge down the coast.
1034 AM EDT Thu Apr 13 2017 A warm front will develop into the area today and then linger through Friday before lifting north Friday night.
Convective temperatures should be reached by early afternoon with max temperatures rising into the low 80s across SE TX. Carrying low PoPs in the western zones to account for this shower development, although forecast soundings indicate drier air filtering into the low-mid levels late this afternoon. High pressure will continue to build in from the east, bringing drier air into the region.
/issued 1135 AM CDT Thu Apr 13 2017/ Mostly sunny skies today with temperatures into the lower 80s on southeast winds as high pressure continues across the region. High pressure will build over the region today and tomorrow.
1135 AM CDT Thu Apr 13 2017 Mostly sunny skies today with temperatures into the lower 80s on southeast winds as high pressure continues across the region. High pressure will build over the region today and tomorrow.
Temperatures have soared into the lower to middle 70s by 15Z. Maxes in the lower 80s areawide look on target with light east flow. The upper ridge will become anchored over the TN Valley by Friday morning, while high pressure slowly builds to our south. Expect quiet weather on Friday, as the upper ridge strengthens.
An upper trough will keep the weather cool with scattered showers through the end of the week.
While there may be breaks in the lowest 6-8kft deck today into tonight, some degree of cloudiness will persist and most likely thicken late tonight as moisture seeps in from the west north of stalled frontal boundary over the Ohio Valley. More clouds today should result in slightly cooler temps compared to yesterday, with 60+ degrees returning on Friday. 5 inches) will slide into the Western Great Lakes Friday Night, there does look to be sufficient moisture transport and instability (showalter slightly negative) extending into southern Lower Michigan to generate showers and possible thunderstorms as warm front lifts north.
913 AM EDT Thu Apr 13 2017 High pressure across the Great Lakes region this morning will build across the Middle Atlantic region today and tonight before shifting offshore later Friday.