Aikyam-Lab/Synoptic-Bench huggingface dataset:
446 AM EDT TUE SEP 20 2016 Currently - A weak ridge extending across South Florida is responsible for light variable to east breezes. Last evenings sounding indicated some increase in deep layered moisture, however there was still a substantial bulk of drier air through the lower levels and some low level inhibition. Forecast - Weak ridging will remain across South and Central Florida through mid week, then give way to some loose troughing east of the Florida Peninsula. In addition, the lower level inhibition that has been holding shower coverage down is expected to erode. A weak ridge across South Florida will give way to weak troughing east of the peninsula.
247 AM EDT Tue Sep 20 2016 High pressure will dominate our weather for the next several days, with dry conditions, and above normal temperatures for late September. A weak cold front is actually expected to drop across the area this afternoon, but lack of moisture or forcing should preclude any shower activity, or even much in the way of cloud cover.
408 AM EDT TUE SEP 20 2016 A cold front will cross the region this afternoon followed by drier and cooler air by late week. Even cooler air is expected for the first full weekend of Autumn. A cold front will approach the region from the west and cross the state today. Drier and cooler this term. Another cold front is forecast to slide across the region Wed afternoon. Clearing for Wednesday night and cooler than the previous nights w/overnight lows projected to be in the mid 40s north and west w/upper 40s to around 50s central and downeast.
/Issued 225 PM CDT MON SEP 19 2016/ An upper level ridge over West Texas today will slowly break down and shift off to the east starting Wednesday. The southwest flow between the ridge off to the southeast of our area and a trough moving into the western U.
446 AM CDT TUE SEP 20 2016 (Today and Tonight) Upper level high pressure will settle over the forecast area through tonight resulting in mostly clear skies and dry weather. Highs today and lows tonight will be around 5 to 10 degrees warmer than average with afternoon highs in the mid 90s and morning lows around 70.
359 AM CDT TUE SEP 20 2016 Flat upper level ridge axis was over eastern MT. Water vapor loop indicated an upper level trough off the southern CA coast. Trough will move into the Northern and Central Plains by 00Z Thu and bring threat of rain in the southern Red River Valley. High level moisture forecast to move into southern MN and southern SD Upper level trough off the west coast of Canada will move into the Intermountain West and deepen. Downstream ridge building will occur over the Northern Plains by 12Z Fri.
1027 PM PDT Mon Sep 19 2016 Cool and unsettled weather is expected for the first part of the work week as a large area of low pressure slowly moves through the region.
650 AM EDT TUE SEP 20 2016 A weak cold front will move southeast across the region Today.
A warm front will develop across the southern and western portions of the CWA overnight with a low level jet setting up just to our south. 850mb winds are initially close to 40kts, however by the time we see mixing, the core of strongest winds will have moved east, and generally will see light winds as low pressure moves just north of I90. When the period opens Tuesday night, there is expected to be a warm front south of the CWA.
104 AM EDT TUE SEP 20 2016 KTYS and KCHA expected to remain VFR through the period as high pressure and clear skies prevail across much of the area.
/issued 209 PM CDT MON SEP 19 2016/ The mid level anticyclone has expanded northward today and will remain mostly in place through Wed. Even though the anticyclone will remain in place heights will fall some Tue/Wed so temps will cool a few degrees. Meanwhile a deepening upper low will drop into the Great Basin Thur PM with jet energy carving the mean trof deeper on Fri.
Snow accumulations in the mountains have been modest with the Beartooth picking up 3 to 6 inches in the highest elevation snotels, and only 1 to 3 inches in the Bighorns.
One weak trough with abundant moisture has passed through with showers ending this morning in the northeast corner of the forecast area. The moisture will develop during the morning on Sunday, with a cold frontal passage Sun night bringing strong wind.
As the day progresses, sky conditions are expected to clear and dry weather will resume as high pressure builds into the area. An upper level ridge is expected to maintain its presents into Sunday.
531 AM MDT Sat Oct 29 2016 Current surface analysis shows cold front now south of the forecast area, with low pressure along the boundary over central WY. Large area of high pressure is centered over southern SK. Upper level analysis shows low pressure system remaining off the Pacific NW coast. Showers ahead of the trof have moved across WY and southeast MT into western SD. Temps are mostly in the mid 40s to mid 50s now, cooler across the higher Black Hills. The weekend will see a wide variation of weather, cool and showery today, then dry and quite a bit warmer in many areas on Sunday. Warmer air will build back into the area on Sunday as frontal boundary lifts back northeast as a warm front.
652 AM CDT Sat Oct 29 2016 Near record highs will prevail again today ahead of an approaching cold front.
640 AM CDT Sat Oct 29 2016 A cold front located across northern NE will continue to slowly move southward through the region today, which will provide a fairly tight temperature gradient across the forecast area. The upper wave will continue to move east southeast into the mid MS valley tonight while high pressure continues to build into the region. Highs Sunday will be in the lower 60s, which is still a couple of degrees above normal.
957 AM EDT Sat Oct 29 2016 High pressure settles off the southeast coast through Sunday.
639 AM CDT Sat Oct 29 2016 Abnormally warm conditions will continue for most of the period with a brief interruption on Sunday as a dry but shallow cold front settles south on Sunday. Inspection of model soundings indicate h8 temperatures could be several degrees warmer than yesterday. A very warm start will also aid in reaching temperatures a degree or two warmer than yesterday.
Have the low clouds moving in by 13z out west at DRT. Model guidance is hitting the low clouds and fog very hard for late tonight into early Sunday. Also, an upper-level low pressure system over the northwest Gulf of Mexico will aid to increase moisture across the coastal plains and result in isolated shower activity. Overall, dry and warm weather conditions are expected today with few showers across parts of the coastal plains and high temperatures in the lower to mid 80s. Highs will be warmer than today by one degree or two as upper-level ridging strengthen a bit.
after about 10 am the trough and its associated showers will be moving east of the area with a ridge building over the Great Basin and central Rockies tonight and Sunday. As the next Pacific trough approaches the northern CA coast a weak wave will ride north over easter UT Sunday morning bringing isolated showers to the Tavaputs and Roan Plateaus and eastern Uinta mountains. The next Pacific trough will move inland Sunday, but its structure looks to dissipate quickly once it progresses through California.
A weak cold front will slide south through the i-44 corridor overnight with north/northeast winds behind the front. A cold front will bring a wind shift to the north to parts of northern Oklahoma after 03 UTC. There is a chance for MVFR/IFR conditions with BR near and north of the cold front after 06 UTC.
Upper level short wave trough exiting into Montana this morning taking the rain with it. Next Pacific short wave trough along the Oregon Coast this morning will spread showers across eastern Oregon this afternoon, and into Idaho north of the Snake Basin tonight. A stronger short wave trough will rotate around an upper low near 40/130 in the Pacific and come into our CWA from the southwest Sunday. This trough will bring more showers to our CWA, especially southern Idaho zones. A little warmer today then little change Sunday.
High pressure surface and aloft will keep VFR conditions at each airport today and tonight.
Tight pressure gradient between high pressure to the north and broad low pressure south of Florida will maintain a breezy east-northeast flow across the region. Highs will reach the low to mid 80s today.
1021 AM CDT Sat Oct 29 2016 Skies are sunny across the forecast area this morning with temperatures in the low to mid 70s. Another warm afternoon is expected with highs in the low to mid 80s. /issued 305 AM CDT Sat Oct 29 2016/ A large broad upper level ridge of high pressure covering the southern United States will continue to directly influence the weather conditions over the Mid South for the next several days. High temperatures will range from the lower 80s north to upper 80s south.
1117 AM EDT Sat Oct 29 2016 Mild temperatures will occur today as high pressure slides to the south of the area. A cold front will bring a chance of showers to the northern mountains late in the day and tonight, and to all of central PA on Sunday.
1044 AM EDT Sat Oct 29 2016 Surface cold front continues to move through the forecast area and is currently across southeast zones. Just a little light drizzle in evidence across the higher terrain behind the front as well as plenty of low clouds across all zones. A secondary cold front was draped across srn Ontario and was working with deeper moisture, resulting in showers and even a few thunderstorms. The low pressure and warm front will blow through over the next handful of hours with the light rain/drizzle gradually ending. Could still be some spits of rain around with the cold front arriving this morning, but it's primarily just going to be a cloudy day.
Quiet wx conditions continue with mean layer high pressure ridge from southern MS valley to the Carolinas. The tail end of a weak frontal trough is located off the southeast U.
1013 AM EDT Sat Oct 29 2016 High pressure will prevail through the weekend.
An attendant cold front is projected to push through western Kansas this afternoon, however, a lack of moisture/instability will result in a dry frontal passage with any reasonable chances for precip confined to portions of the Upper Midwest.
1021 AM EDT Sat Oct 29 2016 High pressure will remain across the area through the weekend.
1257 PM EDT Sat Oct 29 2016 Surface cold front continues to move through the forecast area and is currently across southeast zones. Just a little light drizzle in evidence across the higher terrain behind the front as well as plenty of low clouds across all zones. A secondary cold front was draped across srn Ontario and was working with deeper moisture, resulting in showers and even a few thunderstorms. The low pressure and warm front will blow through over the next handful of hours with the light rain/drizzle gradually ending. Could still be some spits of rain around with the cold front arriving this morning, but it's primarily just going to be a cloudy day.
1016 AM EDT Sat Oct 29 2016 Update A weak cold front will push southward through Michigan today and tonight resulting in some showers and perhaps even a few thunderstorms.
1130 AM EDT Sat Oct 29 2016 A cold front will cross the area tonight.
/issued 305 AM CDT Sat Oct 29 2016/ A large broad upper level ridge of high pressure covering the southern United States will continue to directly influence the weather conditions over the Mid South for the next several days. High temperatures will range from the lower 80s north to upper 80s south.
The upper low around 150 miles east of Brownsville will continue moving westward through the weekend. as this upper low pushes into Mexico tonight and Sunday, drier air on its northern flank will push into the CWA and produce a drier and warmer day on Sunday. Leaned towards the warmer guidance for aftn highs each day.
1036 AM EDT Sat Oct 29 2016 Mild temperatures will occur today as high pressure slides to the south of the area. A cold front will bring a chance of showers to the northern mountains late in the day and tonight, and to all of central PA on Sunday.
737 AM EDT Sat Oct 29 2016 High pressure will remain across the area through the weekend.
1026 AM EDT Sat Oct 29 2016 A large area of light to moderate rain and showers, accompanied by a few thunderstorms, is maintaining itself in the Atlantic waters south and southwest of the Lower Keys. However, a measure of confluence is expected through the lowest layers through the balance of today and into tonight. The latest HRRR for the local area is showing such a scenario, highlighting the 18z through 21z window for the highest probability of rain along the island chain, and then another episode from sunset into tonight.
1006 AM EDT Sat Oct 29 2016 A cold front will cross the area tonight.
over the south a more pleasant fall day than across the north where clouds and cooler temperatures will be the main theme of the day.
840 AM EDT Sat Oct 29 2016 Much warmer today with increasing clouds. A cold front will bring rain chances tonight and Sunday. Current satellite imagery showing only high clouds traversing the area as a dry warm front skirts our north. Hi-res WRF models show rain showers along the warm front through the afternoon, but the 12z sounding shows the column is much too dry for rain to develop. A weak cold front will sink into the area from the north late this evening with an increase in clouds and eventually rain chances north of I-80.
1231 PM EDT Sat Oct 29 2016 Much warmer today with increasing clouds. A cold front will bring rain chances tonight and Sunday. A weak cold front will sink into the area from the north late this evening with an increase in clouds and eventually rain chances north of I-80. The passing cold front will lead to a strong gradient in high temperatures north to south tomorrow, but highs will generally above-average.
A cold front will bring a wind shift to the north to parts of northern Oklahoma after 03 UTC. There is a chance for MVFR/IFR conditions with BR near and north of the cold front after 06 UTC.
The thermal ridge will stretch across northern Missouri in to west central Illinois, so warmest temperatures should be along and north of the Missouri River into west central Illinois. Low to mid 80s in these areas still look like a good forecast, with slightly cooler readings in the eastern Ozarks further away from the thermal ridge. Carney Cooler high temperatures can be expected on Sunday as a cold front drops southward through the forecast area. Low level cold air advection along with post frontal low level clouds will lead to cooler high temperatures, particularly across northeast MO and west central IL, albeit still above normal for late October.
748 AM EDT Sat Oct 29 2016 Aviation A weak cold front will push southward through Michigan today and tonight resulting in some showers and perhaps even a few thunderstorms.
1029 AM EDT Sat Oct 29 2016 High pressure will continue to drift south from the Carolinas through Sunday. A cold front will cross the area Sunday evening.
956 AM EDT Sat Oct 29 2016 Return southwesterly flow between departing high pressure to the east and a slowly moving cold front to the northwest will bring much above normal temperatures to the region today. The cold front will push south through the area Sunday into Sunday night.
Dry weather with mostly clear skies will return this weekend, with desert temperatures continuing in the lower 90 degree range.
Morning 12Z JAN sounding reveals an even drier air mass than was the case yesterday with low level temperatures through 4 or 5 KFT perhaps a degree C warmer than was the case in comparison to the 12Z sounding yesterday.
Southerly winds 5 to 10 kt overnight will increase to around 15 kt on Saturday as low pressure deepens in the Central Plains. Out ahead of these features, mid-level ridging is in place across much of Texas, and will continue to control our sensible weather through the weekend.
615 AM CDT Sat Oct 29 2016 A cold front will sag across the local area this afternoon bringing ample mid/high level cloud cover and generally cooler temperatures to at least the Nebraska portion of the forecast area today. where compression ahead of the front should allow temperatures to climb into the lower to middle 80s. had trouble forecasting RH values below 30 percent thanks to the accompanying cooler forecast temps. steady northerly winds will promote mixing of the lower layers of the atmosphere through much of the night. a significantly cooler airmass will advect into the central plains. cooler. Temperatures will be cooler than Saturday.
1005 AM MDT Sat Oct 29 2016 Competing influences today with cold advection aloft behind the trough. Weak upper trough axis will pass this morning. Could be some snow mixed in at pass levels, but any accumulation will be limited to the highest ridges. At the surface a weak cold front will pass this morning with cooler air moving in on northwest winds, turning N-NE this afternoon. Lows will be a bit cooler than the past several nights, though wind over the higher mountains and east slopes will keep readings milder in those areas. On Sunday, an upper ridge moves eastward out of Colorado with southwesterly flow aloft on the increase.
854 AM EDT Sat Oct 29 2016 Low pressure will exit the Gulf of Maine this morning followed briefly by a weak ridge of high pressure. Low pressure over the northern Great Lakes will track across Ontario and Quebec today and tonight. This low will drag a warm front north into the area today followed by a trailing cold front tonight. The cold front will sink slowly to the south of our area on Sunday while another weak low travels along it.
High pressure aloft will strengthen over Utah today, then shift east of the state tonight.
934 AM EDT Sat Oct 29 2016 Upper-ridge will dominate the weather across the region today. southwest flow and the aforementioned sunshine will allow high temperatures to soar into the low to mid 80s across most of the Valley. Chattanooga Airport, TN 86 55 84 56 / 0 0 0 0 Knoxville McGhee Tyson Airport, TN 83 53 82 56 / 0 0 0 0 Oak Ridge, TN 83 52 81 56 / 0 0 0 0 Tri Cities Airport, TN 79 47 78 54 / 0 0 0 10.
Snow will generally end on the Idaho side from west to east this afternoon as upper trough axis, currently in western Idaho, moves to the ID/WY border by sunset.
A SE-moving cold front should venture into Southeast KS late this afternoon. The deep-layer shear is STRONG & w/ the cold front's later arrival, the potential for severe thunderstorms with very large hail that may reach around 2 inches in diameter & 60-70 mph winds is increasing. This dry air will scour out the shallow moisture and clear out the low clouds. The better chances of thunderstorms for eastern Kansas/western Missouri should be this evening when the cold front finally encounters the moisture axis.
311 PM CST Tue Feb 28 2017 Mainly snow continues across parts of east central Minnesota and northwest Wisconsin this morning associated with a fairly weak low pressure system over Iowa.
A deepening upper-level trough over the Intermountain West ejects eastward over the Great Plains tonight. As the aforementioned trough progresses into the eastern CONUS, an attendant cold front dives into the lower Mississippi River valley by the mid afternoon hours Wednesday. Ahead of this cold front, a moist and unstable airmass will develop as Gulf air continues to pump into the central Gulf states.
345 PM CST Tue Feb 28 2017 (Tonight and Wednesday) Latest satellite imagery shows an upper level broad trough over the western US moving east, with a shield of cirrus across much of central and east Texas ahead of the trough. cold front will move through late tonight through early Wednesday. Although we will see slightly cooler temperatures, we are still expecting highs in the 60s for Wednesday with mostly clear skies.
These elevated storms developed north of a warm front draped across far southern Wisconsin, extending from a low pressure system in central Iowa. Most guidance suggests that the warm front will remain in roughly the same location until the low pressure center tracks along the front this evening. Instability will remain limited, but given the other ingredients present, more severe storms are possible late this afternoon and into the evening as the low approaches this area. Some MVFR cigs possible far south as warm front get close. A strong surge of cold air behind passing low pressure will likely produce more frequent wind gusts to Small Craft Advisory levels later tonight into Wednesday.
A mid-level trough axis resides just west of Coconino County this morning. An impressive frontal band to the east of this trough is starting to break apart. Expect widespread MVFR conditions with areas of IFR/LIFR conditions, especially across the higher terrain.
Northwest to north winds will be a little gusty behind the cold front, but winds should decrease after midnight. Wednesday will be the coolest day of the next seven behind the cold front with highs generally in the 50s.
A trough of low pressure will slowly move east of the Great Basin tonight through early Wednesday, taking the chance for showers along with it. Warmer and drier conditions are expected for the remainder of the week.
344 PM CST Tue Feb 28 2017 The surface warm front has lifted north, and was located from just south of Madison to just north of Milwaukee at mid afternoon. Still awaiting our next round of convection, which should arrive early this evening as low pressure approaches. Our greatest severe risk north of the warm front remains elevated hailers, however will have to watch the far south where there is some potential for storms to become rooted within the boundary layer. Colder air wrapping in behind the low will result in a change over from range to snow from northwest to southeast.
Temperatures, on this last day of meteorological winter, reflect late spring or early summer conditions with mid to upper 80s across the island chain, and dewpoints in the low to mid 70s. High pressure parked off the eastern coast of Florida will weaken its influence across Florida overnight, and dip in the winds will occur in response around Wednesday afternoon.
A mostly dry cold front will shift through the area overnight and early Wednesday morning with only light showers at best along it. RAP analysis coupled with water vapor imagery channels clearly depicts a longwave trough axis over the Rockies and into the desert southwest. As the passage of the trough axis occurs over the next 18 hours, stronger northward momentum will bring the drier and slightly cooler airmass into South-Central Texas.
313 PM CST Tue Feb 28 2017 A dynamic mid/upper trough pushing eastward across Colorado and New Mexico this afternoon is bringing strong winds to much of the forecast area pretty much as expected. The altocumulus and thick cirrus out ahead of the trough has delayed the onset of the high winds, but the strong winds are marching steadily eastward with the passing of the thickest cirrus. Will make a minor adjustment in moving Motley and Garza counties from the High Wind Warning to the Wind Advisory and keep the expiration time at 7 pm. A cold front will shift winds around to the north after midnight with winds becoming light not too long after sunrise Wednesday.
147 PM EST Tue Feb 28 2017 A series of disturbances will keep periodic rain in the forecast through tonight before a strong cold front results in strong showers and thunderstorms Wednesday. Confidence continues to increase for severe thunderstorms to generate along the cold front on Wednesday.
Snow showers, locally heavy, have shifted to central Idaho as upper trough axis shifts eastward across Idaho. Trough axis will reach western Wyoming this evening.
140 PM PST Tue Feb 28 2017 High pressure will start to build in today.
123 PM MST Tue Feb 28 2017 Cold front will continue through the forecast area overnight and should clear it by 12z. Either way, surface temperatures will be above freezing and ground temperatures even warmer, so snow will likely be melting on contact.
but that may be minimized by subsidence with upper ridging over the area. Could be a degree or two warmer Wed with surface flow gaining a slightly more westerly component.