Aikyam-Lab/Synoptic-Bench huggingface dataset:
1055 PM CDT Thu Mar 16 2017 A cold front will move through the region around sunrise. Winds will increase even more behind a cold front at all sites after sunrise. /Issued 521 PM CDT Thu Mar 16 2017/ A dry cold front will move across the OK and TX Panhandles later tonight and Friday morning with cooler temperatures in store Friday afternoon. An upper level ridge of high pressure will dominate the weather across the srn high plains this weekend.
/Issued 311 PM EDT Thu Mar 16 2017/ The upper level synoptic pattern this afternoon reveals a highly amplified longwave trough across the Mid Atlantic and Northeast. with more of a split flow pattern across the western US and a ridge located in between these features. Latest surface analysis indicates lee cyclogenesis in underway across the Central Plains with a trough extending southward through the Texas Big Bend. Broad area of high pressure encompasses mush of the eastern US. aside from residual trough across Northeast associated with early week's Nor'easter. With the deep trough continuing to pull northeast of the local area. This will allow a cold front to approach the local area from the north late Friday into the extended. As the associated cold front moves across the CWA, the moisture will diminish as will the showers.
1154 PM EDT Thu Mar 16 2017 Light winds and clear skies will prevail through daybreak as Se Mi remains under the influence of high pressure over the ern Great Lakes. A warm front will slowly track into Lower Mi on Friday.
723 PM EDT Thu Mar 16 2017 Light lake effect snow showers will slowly dissipate this afternoon and evening across the area as high pressure builds across the region. Friday will be quiet as high pressure briefly stays around.
Right now, temps are in the lower 40s but dewpoints are 10 to 15 degrees. Not expecting any frozen precip as freezing levels are too high for snow and mixed precip partial thickness criteria is not supported.
1016 PM EDT Thu Mar 16 2017 High pressure exits tonight.
/issued 326 PM CDT Thu Mar 16 2017/ Skies are partly cloudy across the forecast area this afternoon with temperatures from the lower 40s to lower 50s. High pressure is now east of the region which allowed winds to shift to the south. A warm front will move across the Mid-Mississippi valley overnight. Temperatures will be much milder than this morning with lows Friday morning in the low to mid 40s. On Friday, a cold front will approach the region from the northwest. Temperatures will be much warmer with highs mainly in the 60s. The cold front will move through the region Friday night with more showers and isolated thunderstorms expected mainly during the evening hours.
In the low levels of the atmosphere, an area of high pressure will be centered over the Tennessee Valley overnight. In the mid levels of the atmosphere, a trough of low pressure will pass eastward across the Florida peninsula tonight. In the upper levels of the atmosphere, a trough of low pressure will be located over the central Gulf of Mexico overnight.
A fast moving cold front will clear out any moisture and the low level wind shear that remains during the mid morning hours. /issued 327 PM CDT Thu Mar 16 2017/ An upper level short wave trough will continue east-southeast across Saskatchewan tonight and Manitoba early Friday before moving into the Minnesota Arrowhead late Friday. But an emanating cold front will drag southward across our area near or just shortly after daybreak Friday. RMcQueen Friday evening begins with a cold front stalling near I-20 as cool surface ridging slowly wanes through the night.
929 PM MST Thu Mar 16 2017 Highs in the 90s will continue across the lower deserts through the weekend.
1121 PM EDT Thu Mar 16 2017 Low pressure will slowly cross the Gulf of Saint Lawrence overnight into Friday.
729 PM CDT Thu Mar 16 2017 Closed low. mature cyclone. Upper ridge building into the Missouri River Valley northwest into central Canada and the western Hudson Bay. Closed low over the Gulf of Alaska with waves coming onshore in the Pacific Northwest. In the near term a Pacific cold front will move across western Nebraska tonight. Cooler air moving in on Friday with temperatures still above normals. Boundary layer remains mixed and temperatures hold in the 20s and 30s as warmer under the ridge moves east. Warmer air aloft.
Observations to the west with the band of precipitation approaching central Wisconsin were reporting mainly rain, while surface temperatures at 9 pm were around the freezing mark with surface dewpoints very dry. Tonight and Friday Clear and dry conditions this afternoon will give way to snow or a wintry mix overnight into Friday morning before surface temperatures warm above freezing, resulting in a change to rain. Freezing/a mix is possible across northern Wisconsin Friday morning while the rest of the area changes to all rain as temperatures warm.
955 PM EDT Thu Mar 16 2017 Low pressure will continue to pull away to the northeast through tonight.
An approaching cold front late Friday night will hold off getting into our northern terminals until after this TAF period ends with increasing rain chances after 18/06Z.
900 PM EDT Thu Mar 16 2017 Dry weather is expected tonight under high pressure.
930 PM PDT Thu Mar 16 2017 High pressure aloft will continue the fair warm weather over inland areas through this weekend.
Cooler and cloudier conditions then look to be on tap for the upcoming weekend, as we transition towards the return of more unsettled weather conditions.
/issued 312 PM CDT Thu Mar 16 2017/ High pressure forecast to continue shifting to the east of the area.
905 PM EDT Thu Mar 16 2017 High pressure over Kentucky will move off the east coast on Friday. A clipper low pressure system will cross the Great Lakes Friday and Friday night dragging a cold front across the local area Friday night.
710 PM MDT Thu Mar 16 2017 Winds are on the steady decrease this evening across the forecast area, enough so to allow the High Wind Warning and Red Flag Warning to expire on time. A cold fropa tonight will yield cooler temperatures for Fri with no high impact weather expected.
826 PM EDT Thu Mar 16 2017 Low pressure will slowly cross the Gulf of Saint Lawrence tonight into Friday.
726 PM EDT Thu Mar 16 2017 High pressure will slide off to the south of the region tonight.
745 PM EDT Thu Mar 16 2017 Light lake effect snow showers will slowly dissipate this afternoon and evening across the area as high pressure builds across the region. Friday will be quiet as high pressure briefly stays around.
A quiet weather evening and overnight period on tap as weak ridging folds over the Pacific Northwest. Skies will be mostly clear overnight and will combine with a cooler airmass to create much cooler overnight temperatures.
1145 PM EDT Thu Mar 16 2017 Low pressure will continue to pull away to the northeast through tonight.
828 PM EDT Thu Mar 16 2017 Canadian high pressure will be centered over the area tonight providing another very cold night with a hard freeze expected. It will be warmer Friday due to a developing southerly flow as the high moves into the Atlantic.
Clouds will begin to increase ahead of a warm front that will be pushing northeastward across the Ohio Valley.
1007 PM EDT Thu Mar 16 2017 High pressure will slide off to the south of the region tonight.
Chattanooga Airport, TN 34 61 52 67 / 0 30 70 60 Knoxville McGhee Tyson Airport, TN 28 56 48 63 / 0 50 80 60 Oak Ridge, TN 28 54 48 63 / 0 60 80 50 Tri Cities Airport, TN 23 51 45 60 / 0 60 80 70 NC.
Expect the low clouds to scatter at some point for AEX and become VFR by 12Z. Current thinking is a mirror image of Thursday except for warmer temperatures. /issued 312 PM CDT Thu Mar 16 2017/ High pressure forecast to continue shifting to the east of the area.
Expect surface wet bulb temperatures to fall to near or slightly below freezing when precipitation commences overnight. Hence timing is everything and some areas will likely experience a wintery mix including sleet or light freezing rain. There is a lot of dry air in the lower levels to overcome. Then the main precip associated with the lower level warm air advection and upper trough will arrive in southern WI shortly after that initial band. Top-down methodology would describe the precip type to be rain due to the increasing warm layer, but the surface temperature and boundary layer temperature would suggest a chance for freezing rain or maybe sleet. Clear skies should allow for cooling temperatures in southeast WI this evening, then a slight warming as the clouds and precip move in with the warm front.
Low level wind shear at KCDS will be swept out by a fast moving cold front mid morning Friday which will boost northeasterly winds through the afternoon. /issued 327 PM CDT Thu Mar 16 2017/ An upper level short wave trough will continue east-southeast across Saskatchewan tonight and Manitoba early Friday before moving into the Minnesota Arrowhead late Friday. But an emanating cold front will drag southward across our area near or just shortly after daybreak Friday. RMcQueen Friday evening begins with a cold front stalling near I-20 as cool surface ridging slowly wanes through the night.
1104 PM EDT Thu Mar 16 2017 High pressure will slide off to the south of the region tonight.
859 PM EDT Thu Mar 16 2017 High pressure ridge in place Tonight, yielding another cold night.
714 PM EDT Thu Mar 16 2017 High pressure exits tonight.
1208 AM EDT Fri Mar 17 2017 High pressure builds over the local area tonight.
720 PM EDT Thu Mar 16 2017 High pressure will slide off to our southeast tonight as a cold front moves east across the Plains and into the Upper Midwest. Mid level clouds are expected to increase quickly after midnight as a warm front lifts northeast toward the area. Rain chances increase from west to east late Friday morning as the warm front lifts through. However, there remains enough uncertainty on timing and how fast temps in our valleys warm above freezing so will continue to message the possibility of spotty freezing rain Friday morning. Rain will continue into Friday evening then diminish late in the night as the cold front passes through.
702 PM EDT Thu Mar 16 2017 Low pressure will continue to pull away to the northeast through tonight.
1254 PM CDT SUN SEP 11 2016 Some pretty spectacular sleeping weather underway early this morning, with temps diving down through the 40s and lower 50s with broad low level ridging working through the majority of the Mississippi River valley. That setup won't change a whole lot today with the ridge axis sliding slightly east but still very much exerting its influence locally, with highs just a shade above those noted yesterday expected. Further eastward push of that ridge will help tighten the gradient and return flow across the area later tonight into Monday, with the onset of modest warm advection ascent through the day but into a quite dry airmass initially.
210 PM CDT SUN SEP 11 2016 High pressure over the Ohio Valley places our area in weak WAA with southerly flow in the low levels.
218 PM EDT SUN SEP 11 2016 Model guidance shows upper ridge over the area with increasing moisture.
A few spots dipped into the lower 60s (61-62F) in the sheltered valley locations of NE AL/Srn Middle TN this morning as well. Partly to mostly cloudy skies prevail at the moment, but are expected to clear through the day as drier air aloft filters into the area from the NW (per the latest WV Imagery loop) associated with the upper trof shifting up the East Coast. Aftn highs will be the 'coolest' of the forecast period today, topping out in the lower to middle 80s (with dewpoints falling into the middle/upper 50s), making for a nice afternoon. 12 For 18Z TAFs: Cold front which moved through the area last night is now located well to the s across cntrl AL/GA into srn MS.
Models show high pressure over the middle Mississippi and lower Ohio River valleys today will be sliding east, moving off the northeast coast by Monday night. Conditions will remain unseasonably cool into tonight with lows in the lower to middle 50s under clear skies. Temperatures will moderate for Monday under continued sunny skies, with near seasonal readings in the lower to middle 80s.
These conditions along with a cold front over southern Mississippi drifting into southeast Louisiana should allow for scattered to numerous showers and thunderstorms developing around midday.
75 Isolated to scattered rain chances exist for a portion of the area as a weak cold front drops southward today.
137 PM EDT SUN SEP 11 2016 A large area of high pressure over the Mid Mississippi valley will will move across the lower lakes today and then move off the Mid Atlantic coast Monday.
159 PM EDT Sun Sep 11 2016 Leftover showers behind a cold front will linger over the Western Catskills and parts of the Mohawk Valley this morning. High pressure will build into the area through the day today bringing drier air and fair weather.
120 PM EDT SUN SEP 11 2016 Cooler and drier air can be expected today through Monday as high pressure slides across the region. Lows tonight will be in the lower to middle 50s.
226 PM CDT SUN SEP 11 2016 High pressure will continue to push east across the Ohio Valley this evening, resulting in a steady southeast breeze across the region as the surface pressure gradient tightens slightly. Temperatures tonight will not be as cool as last night, though still pleasant, with lows ranging from the low to mid 50s east to low 60s west. The period starts off with a flat ridge in the upper levels over the southern states and an upper level trough moving southward out of Western Canada. The upper level trough will eventually break into two with the southwestern portion becoming cut off over the CA-NV border while the remainder continues eastward towards the Great Lakes.
High pressure will drift from the Ohio Valley this afternoon to the Mid Atlantic coast by tomorrow afternoon. As the high movess to the coast tomorrow, an easterly low level flow may push the front back to the west and advect mositure across SC and GA.
High pressure will remain over the eastern U. as low pressure develops in the Plains. Lows tonight will drop into the lower 50s under clear skies.
359 PM PDT SUN SEP 11 2016 Dry conditions and cooler inland temperatures will prevail across the region the next few days, as an upper-level low pressure system drops southward along or just east of the Interstate 5 corridor.
1053 AM PDT Sun Sep 11 2016 A strong cold front will continue to push into the region today with with breezy, dry northerly winds that may lead to areas of blowing dust.
An upper trough will extend from central Manitoba and Saskatchewan Canada southwestward across the Pacific Northwest by late this afternoon. This will develop a fairly strong thermal ridge eastward into the central High Plains. The upper trough will advance southeast, and drive a cold front into western Nebraska. Monday starts off quiet and dry as high pressure drifts further eastward. Highs on Monday remain on the cooler side, with temperatures ranging from the low 60s across Sheridan county to the mid-70s across the southern and eastern counties.
226 PM MDT SUN SEP 11 2016 Current surface map places cold front from far northwest North Dakota into central Montana. Cold front will enter northwest South Dakota and northeast Wyoming this evening and then through the rest of western South Dakota overnight. Period of gusty northwest winds behind cold front with 3-hour pressure rises of 4-6mb. Much cooler on Monday with extensive cloud cover.
340 PM CDT SUN SEP 11 2016 The week ahead will turn much cooler due to a cold front that will come through on monday and monday night. Extra lift was supplied by a strong short wave that was ejected from the deep long wave trough digging into the southwest. The cold front will move out northwest Wisconsin Monday evening.
This will result in warmer temperatures by Monday morning and increasing humidity. The large scale weather pattern will begin to change Monday as upper level high pressure deamplifies and gets forced eastward by a developing western U. S upper trough. This low pressure system is progged to deepen and translate across the western half of the country through the week.
402 PM CDT SUN SEP 11 2016 Breezy southerly winds have helped temperatures return to the 80s in most spots this afternoon as warmer and more moist air continues to advect across the region. This is in response to a tightening pressure gradient as low pressure deepens on the lee side of the Rockies ahead of the next disturbance. likely in the lower 60s at most locations early Monday morning. Expect this next cold front to be rapidly approaching the local area during the morning hours tomorrow. with the pre-frontal trough crossing the local area by mid morning.
241 PM CDT SUN SEP 11 2016 After the passage of a relatively weak cold front last night, things are fairly quiet across the mid-state. Some high clouds are lingering, otherwise the biggest story is the drier air and cooler temperatures that have filtered into the region.
327 PM CDT SUN SEP 11 2016 Nice early fall weather with generally sunny skies dominate the upper Midwest as high pressure moves east with temperatures mostly in the middle 70s.
254 PM EDT Sun Sep 11 2016 High pressure will be firmly in control across the region through Monday night, providing a continuation of dry weather. The airmass will start to modify through the period, so highs on Monday will return to the low to mid 80s. The period begins with a more zonal flow pattern across the Ohio Valley region and a closed upper low across the Western Conus.
The high pressure will drift southeast and allow a slight gradient from the southwest/south, but still setting up for another cool night with lows falling into the lower 50s to around 60 for areas closer to Lake Michigan.
/issued 345 AM CDT SUN SEP 11 2016/ Yesterday's cold front brought unseasonably cool temperatures to West Texas and Southeast New Mexico, as well as decent wetting rains. However, like any cold front this time of year, yesterday's was shallow and highly modified, and so temperatures should rebound back to abv-normal today. WV imagery shows the region under a fairly broad ridge, subdued a bit by generally zonal flow over the nrn CONUS. Thicknesses associated w/this feature are forecast to increase thru Monday afternoon, before the ridge begins breaking down as an upper trough drops out of B.
353 PM CDT SUN SEP 11 2016 Weak upper level ridge has begun to shift east and southwest surface winds have brought temps into low/mid 80s on schedule across West Texas as of 3pm. Mid-level height falls begin to drop behind the exiting ridge while thicknesses remain relatively unchanged in the short term out ahead of the next system that is still working its way out of the Pacific Northwest.
This high will remain the dominant influence on weather over Southeast Michigan through Monday, keeping conditions dry and quiet. Good radiating conditions tonight will provide temperatures a few degrees cooler than last night, and even a few degrees below normal, as we fall to near 50 for most locations. The Detroit heat island will remain slightly warmer in the mid 50s, however.
324 PM CDT Sun Sep 11 2016 The main highlight for the near term/through this evening (00z- 06z) is the passage of a dry cold front across central ND and the James River Valley. Based on the 3hr pressure changes and windshift line, as of this writing, the cold front was already through Crosby and Tioga, now approaching Williston and sagging into into north central ND. Breezy and much cooler conditions under a mostly cloudy sky is expected for the remainder of the day, with temperatures in the 50s. A significant 24hour change in 850mb temperatures can be expected with this cold front. The result will be for highs in the lower 50s northwest to upper 50s/around 60 south central.
High temperatures will be in the lower 90s for most of the area, though could be a bit lower depending on where and when it rains.
121 PM CDT SUN SEP 11 2016 Water vapor and streamflow analysis indicate a southwest flow aloft in advance of a slowly migrating trof axis from KY and TN into TX. At the surface, drier air was slowly advecting southward behind a cold front that was becoming nearly stationary in central MS and AL into northern GA. Dew points have dipped into the upper 50s in northwest AL into middle TN, but remain in the lower to middle 60s further south across northern AL.
411 PM CDT SUN SEP 11 2016 Large upper trough of low pressure will continue to dig throughout the western U. On Monday, the western upper trough continues to remain in the far western U. with a strong positive tilt, and a northern trough moves southeastward into southern Canada. Slow moving cold front will move eastward across the forecast area, with winds becoming rather strong behind the front in the 20 to 35 mph throughout our western zones. The low level moisture continues to be mainly bottled up along and behind the cold front, with the crucial 850-700mb layer remaining rather dry throughout the day. Therefore only slight chance or chance pops are warranted with the cold front, and primarily in the afternoon.
548 PM CDT SUN SEP 11 2016 Expect VFR conditions to remain dominant as high pressure shifts slowly east through this TAF period.
Cold front currently just south of ATL-AHN and will continue to drift south through the CWA.
/Issued 301 PM CDT SUN SEP 11 2016/ As we continue into the day on Monday, above average temperatures will be expected across the Panhandles ahead of the equatorward moving cold front. High temperatures on Monday will be in the lower 90s across the region. Latest 11/12Z model and probabilistic data continues to show easterly-southeasterly flow in the wake of the decaying cold front.
130 PM EDT SUN SEP 11 2016 Aviation High pressure centered over Missouri will track up the Ohio Valley today and into Monday.
/issued 415 AM CDT SUN SEP 11 2016/ Surface pressure ridge across the Rolling Plains will depart farther east of the region today ahead of modest return flow on gusty SW winds. We continue to watch how the next strong storm system will develop over the Pacific Northwest along with a cold front that will slide south ahead of this storm system.
339 PM CDT SUN SEP 11 2016 (Tonight and Monday) An upper level ridge will be centered over northeast Texas through the next 24 hours, while an upper level trough dives south across the Pacific Northwest. High temperatures on Monday will be slightly above normal, mainly in the low 90s.
655 PM EDT SUN SEP 11 2016 A dry and stable environment will exist through the TAF period as high pressure maintains control. This high will remain the dominant influence on weather over Southeast Michigan through Monday, keeping conditions dry and quiet. Good radiating conditions tonight will provide temperatures a few degrees cooler than last night, and even a few degrees below normal, as we fall to near 50 for most locations. The Detroit heat island will remain slightly warmer in the mid 50s, however.
218 PM CDT SUN SEP 11 2016 Weakness in the low to mid levels of the atmosphere combined remnant moisture from previous rainfall contributing to broken cu deck across much of North Louisiana and East Texas. At the surface, a cooler and drier airmass bringing a taste of autumn to the Four State Region with high temperatures this afternoon in the mid 80s. However, ridge to gradually weaken by midweek allowing for nearly zonal flow across the region. Disturbance in gulf to gradually weaken into a broad trough contributing to increased showers and thunderstorms across the region. Increased instability to generate sufficient cloud- cover and precipitation to limit high temperatures in the lower 90s with low temperatures in the lower 70s through the end of the workweek.
353 PM EDT SUN SEP 11 2016 A strong cold front will move off shore this evening.
At the surface, winds were light as high pressure was in control of the region, centered over southwest Missouri with the axis extending into northern Wisconsin.
635 PM EDT SUN SEP 11 2016 High pressure will move eastward across the region overnight then reach the New England coast by Monday evening.