Aikyam-Lab/Synoptic-Bench huggingface dataset:
313 PM EST Wed Nov 9 2016 In the wake of the cold frontal passage low clouds have prevailed across the forecast area today. With the return of sunshine on Thursday, daytime temperatures will be about 10 degrees warmer than today. With warm air advection quickly setting up, the stage will be set Thursday night for a significant ridge and valley temperature difference for overnight lows. This results in a nearly 10 degree temperature difference between the colder valleys and the thermal ridges.
1128 AM CST Wed Nov 9 2016 High pressure was located across the region this morning with clear skies and light winds producing a wide spread in temperatures prior to sunrise.
306 PM CST Wed Nov 9 2016 18Z surface data had high pressure from the southern Plains into the western Great Lakes. Quiet and dry conditions will be seen from late this afternoon through tonight as high pressure moves into the Ohio Valley.
A weak dry cold front will drop south through the forecast area tonight bringing cooler temperatures and breezy conditions on Thursday. With the current warm airmass overhead today and the cold front moving through tonight, our potential for temperatures bottoming out tonight will not be as great as the past nights. However we did blend given guidance with cooler MOS guidance as we should still remain mostly clear with winds not picking up until after midnight. Breezy on Thursday behind a cold front with the strongest winds expected north and east, with high pressure building into the west during the afternoon.
1224 PM EST Wed Nov 9 2016 A cold front will finish moving through the region this morning, with light rain diminishing to drizzle and clouds during the day, along with much cooler temperatures. High pressure will bring a temporary dry period Thursday.
FROPA will push across the area in the early morning with winds turning to the northwest with cooler blyr air filtering down in its wake.
1106 AM CST Wed Nov 9 2016 High pressure will continue to spread into the region, pushing stratocu out later this afternoon. Some low clouds continue behind the boundary but they are expected to clear out fairly early this morning as high pressure, currently located in the central plains, builds into the region. The high is expected to be located in the Tennessee Valley by the end of the period. Overall the upper pattern is quite amplified with an upper low over west Texas retrograding initially while undercutting upper ridging that will dominate the majority of the nation. Center of the high pressure will be over the state tonight for a rather cool Thursday morning.
300 PM CST Wed Nov 9 2016 A general area of UA troughiness that was once stretched from the Four-State region to across west Texas and northern MX earlier this morning, was responsible for the area-wide low-mid level cloudiness and some -DZ/-RA this morning. Late this aftn, the UA trough showed signs of closing off whilst also retrograding a bit thus pushing farther away from the region. As such the low clouds have been slow to deteriorate, though with northerly sfc-700 mb winds infiltrating drier air, clear skies have commenced across southwest AR, southeast OK and portions of east TX and northwest LA.
250 PM CST Wed Nov 9 2016 Upper level high pressure remains in control across the region, and will through Thursday. Lows will drop into the upper 20s in the lower elevations like the Platte River valley, with mid to upper 30s elsewhere. A Pacific cold front will cross the area early Thursday morning. As this occurs expect a rapid rise in temperatures as warmer air aloft is mixed to the surface. Then expect temperature to steady or fall some as cold air advection develops behind the cold front during the afternoon hours.
This has led to near freezing temps across much of the region, with some areas of frost. This will lead to a modest warmup for Thursday with a minor cool down expected for Fri as another surge of cooler air will drop south across the Great Lakes. Moisture is limited as this low moves across with weak forcing. Ketcham A ridge of high pressure has resulted in light and variable winds and clear conditions across the region. As high pressure builds over the Lower Mississippi Valley area late tonight and early on Thursday, southerly winds will return to the area.
Weak mid level impulse will shear ENE out ahead of the approaching mid level trough and attendant "back door" type cool front.
224 PM CST Wed Nov 9 2016 High pressure overhead, dry air and light to calm winds tonight will lead to good radiational cooling. Low temperatures should drop into the lower to middle 30s, which should lead to widespread frost.
Cold front currently dropping south across the area today, and this is mainly bringing some clouds and a little drier/cooler air with it. Otherwise, a mid deck of stratus encompasses much of the region as broad divergence/ascent lingers over the region in the base of a passing upper trough. The actual front will pass through this afternoon and early evening, though rain is expected to quickly exit the area this morning as drier mid level air follows the upper trough axis shifting past the area. A few cooler pockets over the north and east part of the area could dip into the upper 30s, where I cannot entirely rule out a few spots of frost.
100 PM EST Wed Nov 9 2016 High pressure builds in for dry and warmer conditions Thursday.
Models continue showing a dry cold front moving in from the north tomorrow, with increasing north winds as the primary impact. A strong upper ridge and an unseasonably warm and dry airmass will remain over the state for one more day.
Tonight Through Thursday High pressure aloft will keep dry and mild conditions with cool morning temperatures. A weak cold front will move south tonight cooling temperatures and shifting the wind to the northeast across the north and east moving up along the Continental divide by Thursday morning.
An upper level trough extended from far western Lake Superior to a low centered in Kansas early this morning. In the lower levels, a ridge of high pressure was over much of northern Minnesota. As this upper trough moves through Wisconsin today, there will be a chance for light precipitation over mainly portions of Price, Sawyer, and Iron Counties. We don't expect the lake breeze to be quite as strong as yesterday but it will still keep lakeside areas cooler. The upper trough will depart tonight and clouds will gradually decrease through the night. High pressure will keep the Northland dry on Friday under partly to mostly sunny skies. Highs will range from the lower forties close to the lake to the upper forties to mid fifties elsewhere.
1124 AM CDT Thu Mar 30 2017 It will be a slow warmup today, with widespread wrap around clouds/cyclonic flow associated with the departing upper low.
Based on current trends the timing part of convection today looks iffy, so I've trimmed back POPs where the higher POPs were on the Plateau and SE Tenn. Chattanooga Airport, TN 78 56 71 49 / 40 80 20 0 Knoxville McGhee Tyson Airport, TN 79 55 67 47 / 10 80 60 10 Oak Ridge, TN 79 55 68 46 / 20 90 50 10 Tri Cities Airport, TN 73 54 67 44 / 10 90 70 20 TN.
Strong southwest winds will develop by this afternoon and will continue into the evening as a strong cold front moves into Arizona. This cold front will move through the state tonight and early Friday, producing scattered rain and snow showers and a few thunderstorms.
A tight pressure gradient persists around low pressure centered in Missouri. forecast confidence is high: Low pressure will slowly move by to the south today and tonight, bringing continued rain to southern Wisconsin. Models then show another round of steady rain moving in mid to late afternoon, with the highest amounts occurring in the eastern forecast area. Highs will be on the order of 10 degrees below normal today, which will feel even cooler when you factor in the rain and breezy east winds. Winds will continue to be brisk out of the north-northeast, so high temperatures in southeast WI will only be in the lower 40s.
718 AM EDT Thu Mar 30 2017 Wrapped-up low pressure will bring rain showers to the upper Ohio Valley late today through Friday. Much of the region should remain dry until late with the exception of the counties north of I-80, where moisture spilling over the ridge and isentropic ascent support some rain showers by mid morning through the afternoon. Better support for rain is expected tonight as the filling low pressure system takes on a slight negative tilt, supporting an area of diffluence and upper level lift over the region in most of the deterministic guidance. Rain showers will continue early Friday as the upper low moves overhead.
Dry airmass in wake of cold front that pushed through overnight will result in nil low level clouds. A cold front is currently pushing off the Middle Texas Coast as of writing with NW surface winds developing in its wake. Some mid and upper level cloudiness /associated with an approaching H5 trough axis and 105kt H25 jet currently overhead/ are expected to persist through much of the morning with clearing skies this afternoon as the upper level jet shifts east and the H5 trough axis pushes through. Continued low humidity and cooler temps than Wed /still in the 80s this afternoon across many areas/ should make today feel rather nice. Breezy to windy conditions are expected during the day along with significantly warmer temps.
An upper low will develop across the Great Basin today, then slowly drift east along the Utah Arizona border tonight through Friday.
A large vertically-stacked cyclone centered over eastern Kansas will provide brisk northwest winds across the region today. Low clouds, with bases mainly around 1,500 ft, will also circulate around the low pressure area, with the southwestern edge gradually lifting to the northeast during the day. With recent rains, light winds, and clear skies, cannot completely rule out some visibility restrictions in BR early Friday, but with drier air bring drawn west by the low-level flow, it seems unlikely. /issued 348 AM CDT Thu Mar 30 2017/ The deep cyclone centered over eastern Kansas this morning will continue to move away today. Friday will be warmer, with winds turning to southeast and increasing again, in advance of the next storm system.
The cold front that moved across the region early this morning has pushed into the north central Gulf, with north to northwest winds 5-15 MPH and dry conditions in its wake. Expect to see some passing high level clouds as an 800-100 knot jet streak associated with a compact upper low over Missouri skirts the region with a few lower cumulus possible as afternoon temperatures rise into the 70s to possibly 80. /12Z TAF/ IR satellite imagery shows mainly high clouds moving over SE Texas associated with a jet streak just ahead of an upper level trough axis. High clouds should thin out as the trough axis moves through today.
1112 AM EDT Thu Mar 30 2017 Wrapped-up low pressure will bring rain showers to the upper Ohio Valley late today through Friday. Most locations will see dry conditions from mid-afternoon until early evening as the warm front begins to lift over the forecast area and coverage increases substantially. Rain showers will continue early Friday as the upper low moves overhead.
955 AM CDT Thu Mar 30 2017 Still seeing main convection area over the southeast corner of the forecast area and the Lower Atchafalaya Basin this morning, and this where the activity will continue for the remainder of the morning into early afternoon, as moist plume moving out of the Gulf is being enhanced by upper level divergence. Cyclone moving out of the Southern Plains into the Mid-Mississippi Valley will help push a cool front across the forecast area, bringing drier air and gradually ending convection during the afternoon. The cold front which is noted this morning moving into the northwest portions of the area and approaching BPT.
A strong low pressure system will produce windy conditions today along with much cooler temperatures Friday.
Another warm, dry day expected across the area as high pressure remains in control of our weather. Overall, there should be enough suppression from the ridge to keep rainfall out of the forecast once again. Temperatures will remain on the warm side with middle to upper 80s expected, a bit cooler at the coast courtesy of the seabreeze. On Friday, a mid/upper level trough will dig into the SE U.
High pressure will transition eastward off the eastern seaboard with low level southerly flow today. Some of the high resolution model guidance has some late day showers across the nrn interior but think it will take the sea breeze collision after 7 pm to get a few showers to potentially develop.
/12Z TAF/ IR satellite imagery shows mainly high clouds moving over SE Texas associated with a jet streak just ahead of an upper level trough axis. High clouds should thin out as the trough axis moves through today.
706 AM CDT Thu Mar 30 2017 Areas of rain showers and drizzle will impact eastern Kansas this morning, as the deep upper low slowly exits eastward.
/issued 408 AM CDT Thu Mar 30 2017/ (Today and Tonight) Quiet and warmer today across west central Texas.
Slow moving low pressure to our north over KS will maintain MVFR cigs across NE OK and NW AR thru the day. Cigs are higher in the south down at KMLC, into the low VFR range. /Issued 326 AM CDT Thu Mar 30 2017/ Upper closed low was positioned across eastern Kansas this morning with dry slot evident in water vapor imagery extending from east Texas north into western Missouri. A few showers will be possible across northeast Oklahoma and northwest Arkansas as the low moves east. The trough will take a dive into the Great Basin before moving over the Southern Rockies and ejecting out onto the Southern Plains this weekend.
1122 AM EDT Thu Mar 30 2017 Showers and thunderstorms are expected in the area today and tonight as a low pressure system approaches from the Southern Plains. Showers will taper off from west to east Friday as the low departs.
611 AM CDT Thu Mar 30 2017 The cold front is pushing east though central sections of the state this morning. A cold front has pushed east into WRN AR. expect at least some clearing and warmer temps in the 60s and even some 70s.
High pressure surface and aloft will shift east southeast the remainder of today as a cold front approaches from the west. Similar to previous days temperatures will continue to run above normal with highs climbing into the mid and even some upper 80s over interior locations during the afternoon, but with cooler readings along the immediate coast where a weak onshore sea breeze component will develop during the afternoon.
635 AM CDT Thu Mar 30 2017 H5 analysis from earlier this evening had a closed low over central Kansas with a trough extending south into northern Mexico. Downstream of this feature, low amplitude ridging extended from northern Georgia into the LP of Michigan. West of the closed low, A ridge of high pressure extended from Utah into Wyoming. West of this ridge, a trough of low pressure was present off the coast of Washington and Oregon. At the surface, low pressure was present over eastern Kansas. A warm front extended east of the low with a cold front extending south of this low into eastern Texas. For tonight, an upper level trough of low pressure will track across Nevada, closing off over the four corners by 12z Friday.
1023 AM EDT Thu Mar 30 2017 A warm front lifts through today, followed by a cold front tonight into Friday.
Synoptically, a ridge remains over Texas as well as one anchored in the Atlantic. A weak upper low remains over NW Florida which is giving the area plenty of rain.
728 PM EDT SUN AUG 7 2016 A weak trough of low pressure will drop through the Tri-State Region tonight. High pressure will then build into the area Monday.
In the low levels of the atmosphere, an Atlantic ridge of high pressure will extend across south Florida overnight. In the mid levels of the atmosphere, an area of low pressure will be centered over north Florida tonight. In the upper levels of the atmosphere, an area of low pressure will be located near the northern Bahamas overnight.
604 PM CDT SUN AUG 7 2016 Warmer and more humid conditions through mid week is the main story of this forecast, with small precipitation chances through the period requiring some consideration as well. Shallow ridge axis is forecast to progress east tonight and Monday, and will be east of our area by Monday night.
648 PM CDT SUN AUG 7 2016 Few concerns in the short term with high pressure overhead at mid afternoon. The high will drift east to the lower Great Lakes by Monday evening with a dry forecast in place. One was to go a little cooler tonight across portions of central Minnesota and west central Wisconsin, mainly north of I-94. Also, highs on monday ended up a degree or two cooler with around 80 to the lower 80s forecast.
623 PM CDT SUN AUG 7 2016 Latest HRRR shows convection across southeast Montana associed with cold frontal boundary will approach southwest North Dakota late this evening. By Monday afternoon, a surface wind shift/weak cold front will be situated along the Highway 83 corridor, with middle to upper 60s F dewpoints expected in the pre-frontal warm sector.
A low pressure system remains in place over the Puget Sound this evening keeping Utah under a mean southwesterly flow aloft. A weak disturbance ejecting around the low is exiting across northwest Wyoming and Montana.
This is due to a combination of continued low level moisture and resultant instability along with the lingering, very weak cold front that is stretched across the northern portions of the Gulf States. Our focus then turns to the broad, upper level low and attendant surface feature over southern GA/northern FL. By this weekend, extended models are indicating the approach of a cold front from the north. With all of the rainfall this week, temperatures should hold steady around normals for this time of the year and a few degrees cooler this weekend with more widespread rainfall.
1156 PM CDT SUN AUG 7 2016 Analysis loop of satellite, observations, and radar shows a ridge of high pressure nosing down over the area. CAPEs of close to 4000 J/kg with little shear (in Oklahoma) would indicate a small chance of storms organizing into a forward propagating cluster along the front, also supported by the low level moisture transport. If that happens, temperatures could be warmer than forecast. Ridge building in the upper levels of the atmosphere does occur toward midweek. The next cold front moves into the area late in the week.
1242 AM EDT MON AUG 8 2016 High pressure will maintain warm and dry weather until humidity and rain chances return by mid week. A persistence forecast was used through the near-term period as high pressure remains the dominant feature.
/issued 351 PM CDT SUN AUG 7 2016/ Our persistently plaguing high pressure is finally playing nice making a plodding promenade to pull out of West Texas. Thunderstorms were also breaking out as they rounded the edge of the high into the central TX Panhandle. Tomorrow will be much of the same story depending on how far the high relaxes, but again the western and northern zones should be the favored areas for rain chances as monsoonal moisture rounds the edge of that high. Temperatures will be quite similar to today, unfortunately, for those still under the influence of the ridge.
Temperatures will fall into the lower 60s away from Lake Michigan, while areas closer to the lake will remain in the upper 60s. Beachler 205 PM CDT Upper ridge will strengthen across the region allowing for primarily dry conditions along with a warming trend through midweek.
913 PM CDT SUN AUG 7 2016 Satellite loop still showing clouds moving into the area tonight with high pressure ridge centered over the Grt Lks region. Latest surface analysis indicated 1020 MB ridge over the western Great Lakes, with axis extending south into the mid Mississippi Valley. This has shunted the low/mid level baroclinic zone well southwest of the CWA, from KS into southern MO.
637 PM CDT SUN AUG 7 2016 /00Z TAFs/ The upper high, though not overly strong, will continue to keep convective chances thwarted across all North-Central TX airports through Sunday evening. Strong subsidence under the upper high should continue to keep things VFR with few-sct CU and CS. /ISSUED 307 PM CDT SUN AUG 7 2016/ Upper level high pressure will continue to keep most of the active weather either across the Central Plains or across the Gulf Coast from Louisiana to Florida.
740 PM EDT SUN AUG 7 2016 Large area of high pressure remains centered over the Upper Mississippi Valley and the Great Lakes region this afternoon. NE edge of the high clouds will continue to stream into our southern CWA this afternoon. but will be suppressed southward tonight as the high center continues to build into Michigan. with temps just a bit warmer. Afternoon highs will warm mainly in the lower 80s. Upper air pattern dominated by Central US ridge with upper low over eastern Canada and another low over the PAC NW. high pressure is centered over the Great Lakes with elongated low pressure system from BC down through the central Rockies. the upper low is expected to only be in the northern Rockies while another upper low drops into NC Canada.
629 PM CDT SUN AUG 7 2016 Latest surface analysis indicated 1020 MB ridge over the western Great Lakes, with axis extending south into the mid Mississippi Valley. This has shunted the low/mid level baroclinic zone well southwest of the CWA, from KS into southern MO.
712 PM EDT SUN AUG 7 2016 A cold front will become stationary over Eastern North Carolina through Monday Night.
/Issued 350 PM CDT SUN AUG 7 2016/ Upper level analysis reveals closed low over PacNW slowly pushing southeast into Washington State while upper level ridge remains over the Southern Plains. Much of the same can be said for tomorrow and the next few days as model continue to dampen the ridge of high pressure and shift the ridge axis a little further east. Guidance is coming into better agreement with late week upper trough and surface front.
Cooler and dry through Monday afternoon ahead of an upper level low and increasing clouds from the northwest in the evening. Best chances of precipitation will come Monday night over the higher terrain of Baker County.
625 PM CDT SUN AUG 7 2016 Analysis loop of satellite, observations, and radar shows a ridge of high pressure nosing down over the area. CAPEs of close to 4000 J/kg with little shear (in Oklahoma) would indicate a small chance of storms organizing into a forward propagating cluster along the front, also supported by the low level moisture transport. If that happens, temperatures could be warmer than forecast. Ridge building in the upper levels of the atmosphere does occur toward midweek. The next cold front moves into the area late in the week.
1009 PM EDT SUN AUG 7 2016 High pressure builds into the area tonight through Monday.
858 PM EDT SUN AUG 7 2016 High pressure will maintain warm and dry weather until humidity and rain chances return by mid week. A persistence forecast was used through the near-term period as high pressure remains the dominant feature.
830 PM MST SUN AUG 7 2016 Drier air moving into the region will keep thunderstorm activity limited to the higher terrain of eastern Arizona through Monday. Meanwhile, warmer afternoon temperatures can be expected.
505 PM MDT SUN AUG 7 2016 Upper level analysis has broad ridge across the central CONUS with closed low over the Washington coast. At the surface, high pressure resides over Minnesota with lee trof developing across central Montana and Wyoming.
1144 PM CDT SUN AUG 7 2016 Satellite loop still showing clouds moving into the area tonight with high pressure ridge centered over the Grt Lks region. Latest surface analysis indicated 1020 MB ridge over the western Great Lakes, with axis extending south into the mid Mississippi Valley. This has shunted the low/mid level baroclinic zone well southwest of the CWA, from KS into southern MO.