Aikyam-Lab/Synoptic-Bench huggingface dataset:
422 AM EDT Sat Jul 29 2017 Low pressure tracks well south of Long Island today, and well east of the area tonight.
High pressure currently anchored over Lake Superior will build southward. Thanks to northeasterly winds around the high and a good amount of diurnal mixing, surface dewpoints have been slowly dropping today. 19z/2pm observations show dewpoints still in the lower to middle 70s south of I-70, but only in the middle 60s further north toward the I-74 corridor. as a western CONUS upper ridge/eastern CONUS upper trough pattern dominates.
622 AM EDT Sat Jul 29 2017 Dry weather will continue through the weekend as a ridge of high pressure gradually settles across the region.
The ridge will be a little stronger tomorrow, resulting in only a slight chance for a thunderstorm. Temperatures will be a little warmer for Sunday, mainly in the low to mid 90s.
230 AM CDT Sat Jul 29 2017 Cold front has exited the mid state, and with it goes the rain and all that muggy air. Skies are clearing out across Middle Tennessee this Saturday morning, and cooler, drier air is riding a surprisingly strong NNE flow into Middle Tennessee.
Timing of the seabreeze will determine just how hot the coastal counties get (if the seabreeze is faster/slower with its progression by 30 min than currently forecast, then max temps will be a degree warmer/cooler). Despite a decrease in H85 temps on Sunday, some areas across the coastal counties may actually be a degree warmer than Saturday as weaker wind fields will lead to slightly stronger warming potential (due to less of a marine influence).
High pressure across the Upper Great Lakes and Wisconsin. Forecast soundings show drier air in the lower levels, although just enough for few fair weather cumulus. Northwest upper flow across southern Wisconsin with a ridge across the plains. High pressure across the upper Great Lakes and Wisconsin. Forecast soundings show a lot of dry air in the lower levels although just enough for scattered fair weather cumulus. With the high across the area tonight, some river valley fog possible, mainly in the Wisconsin river valley.
Mostly sunny skies, comfortable humidity, and a breeze off the lake keeping temps a couple degrees cooler near Lake Michigan. Now seeing some differences between the GFS and ECMWF wrt the timing of the midweek trough and transition back to cooler and less humid air.
An upper level high is centered over western Oklahoma this afternoon, with a stationary frontal boundary draped across central Texas Panhandle.
637 AM EDT Sat Jul 29 2017 High pressure builds in from the northwest while low pressure tracks well south of the Gulf of Maine, resulting in a dry and mostly sunny weekend.
High pressure was over the region providing partly to mostly sunny skies. The high will continue to move southeast Saturday with a south to southwest surface flow developing.
We have the added influence of a weak inverted trough across northwest Mexico, nosing into southern Arizona today and Sunday.
With the upper level ridge centered across the Great Basin, the CWA will be under weak north to northwest flow aloft.
326 AM CDT Sat Jul 29 2017 Guidance has trended a degree or two warmer this run. A cold front has moved across the Midsouth and is currently approaching Birmingham, AL and Jackson, MS. Temperatures are 3-5 degrees cooler than they were at 3 am yesterday morning and will likely be another 5-10 degrees cooler tomorrow morning as a cooler drier airmass moves into the region.
Drier and cooler air will work into the region today under northwest flow behind yesterday's cold frontal passage.
Last of the showers over Logan County finally dissipating as cooler northerly flow is now well established across the Commonwealth. Cold front is getting a strong southward push, and precip has almost completely exited central Kentucky. Maybe a few lingering showers near Bowling Green and near Lake Cumberland, but those are fading fast as cooler and drier air spills into the region. Lows tonight look to cool into the lower 60s across southern IN and the northern Bluegrass region with lower-mid 60s across central and southern KY. For Saturday/Saturday night, Canadian high pressure will build into the region ushering in much cooler and much less humid conditions. Under mostly sunny skies, highs on Saturday will range from the mid- upper 70s in southern IN/northern KY to the lower 80s south of the WK/BG Parkways.
535 AM EDT Sat Jul 29 2017 Pleasant conditions expected through the weekend as high pressure building into the region will keep the North Country dry and seasonably cool. High pressure continues to build into the region and should keep the North Country under quite pleasant conditions through the weekend.
Low temperatures will be similar to recent nights - in the lower to mid 60s.
An area of high pressure was centered across northern Wisconsin which meant calm winds at many locations in Minnesota and Wisconsin. Very little is expected to change over the next 36 hours as high pressure will remain in place leading to clear skies and very light winds.
That said, much of the eastern half of the lower 48 will remain under the influence of general long wave trough.
307 AM CDT Sat Jul 29 2017 High pressure remains overhead this morning, but with some mid to upper level moisture trapped in it there are some light elevated showers developing across the Panhandle. Conditions will be similar Sunday, although a weakening of the ridge over northeast NM and the northern Panhandle point to the potential for wider coverage there with some potential to make a run at the northern zones Sunday night.
As high pressure builds over the region the next 24 hours flight conditions will remain VFR. VFR conditions are expected to prevail the next 24 hours as high pressure remains in control of the weather pattern. /issued 156 PM CDT Fri Jul 28 2017/ SHORT TERM (Now through Saturday Night): No significant changes to the short term forecast today as a strong H5 ridge remains perched over much of the Southern Plains. The high pressure system will continue to dominate the weather pattern across Deep South Texas and the RGV essentially shutting off any moisture source. Given the strength of the ridge, the 850mb temps, and dry atmosphere, triple digit heat will prevail from the I-69E/Hwy77 corridor and west toward Zapata.
However, models still indicate multiple MCS episodes as s/wv troughs progress over the retrograding ridge.
350 AM CDT Sat Jul 29 2017 High temperatures today will continue to be cooler than normal for this time of year given a good deal of cloud cover. Highs should generally range from the lower 80s over south central Nebraska to the mid 80s across north central Kansas.
Building high pressure will return dry and seasonable weather for the later half of Saturday through the start of the work week. General downward trend in rain rates and coverage will continue through the day as the slow moving upper low pinwheels to our southeast. This could lead to the generation of fog, especially in warmer river valleys. Sunday will be warm and dry with high pressure fully dominating.
Cold front remains located just n of the cntrl TN Valley this late Fri evening from ern KY SW into mid/wrn TN. In the continued dry/cold advection, temperatures will likely fall into the low to mid 60s at most or all locations by Sunday morning. Most models keep northeasterly flow in place through Sunday morning, as an upper low in the Mid-Atlantic deepens atop the departed frontal boundary. With a solid 48 hours of northerly to northeasterly flow, much drier air advecting into the Tennessee Valley should drop dewpoints into the lower 60s.
Toward midweek, the upper ridge will reposition itself across the western states as a large trof takes shape over the central and eastern parts of the country.
318 AM EDT Sat Jul 29 2017 Pleasant conditions expect through the weekend as high pressure building into the region will keep the North Country dry and seasonably cool. High pressure continues to build into the region and should keep the North Country under quite pleasant conditions through the weekend.
352 AM MDT Sat Jul 29 2017 High pressure ridging aloft will persist through this weekend, resulting in continued hot conditions.
409 AM CDT Sat Jul 29 2017 Showers and thunderstorms are slowly moving southward as a cold front dips into the forecast area today. The good news is that it looks as if most of the dynamics are displaced from our area and that may keep convection on the lower side. Morning lows will be cooler, especially across the northern half of the area where temperatures will drop into the upper 60s and lower 70s. A weak cold front will move south across the area today into this evening with scattered to numerous showers and thunderstorms forecast. 11 Winds have already begun to increase across the coastal the waters and are close to SCS criteria and winds will continue to increase to 15-20 kts over all of the open waters and sounds later today as the cold front slowly approaches.
Models indicate H85 temps about 2 deg C warmer than yesterday over portions of the area. Combined with the potential for compressional warming ahead of a weak boundary approaching from North Texas this should allow for surface temperatures to be a couple of degrees warmer in many areas than yesterday. Can't rule out a couple of showers or storms across far northeast areas this evening, but the strength of the ridge and weak cap around H6 makes confidence in this happening low. Temperatures tomorrow will still be hot but a few degrees cooler, except near the Rio Grande where compressional warming out ahead of the boundary and slight downsloping winds will actually result in even warmer temperatures than today.
Ohio low and associated trough extending into the southeast states is forecast to drift southeast to off the Atlantic Coast on Sunday, which allows western high to build east into the Plains.
Sunday is expected to be dry and warm as ridging across the western Dakotas and Canadian prairies builds again.
359 AM EDT Sat Jul 29 2017 Dry weather will continue through the weekend as a ridge of high pressure gradually settles across the region.
240 AM CDT Sat Jul 29 2017 After some early morning valley/bog fog, expect mostly sunny/clear skies today into tonight as high pressure continues to dominate the regional weather pattern.
309 AM CDT Sat Jul 29 2017 Ridge aloft will remain situated generally over west Texas through Sunday resulting in little in the way of clouds and temperatures remaining near if not slightly above normal across much of the area.
An upper level low will slide across the mid-Atlantic Saturday with the low opening into a wave and becoming elongated over the Atlantic on Sunday. A cold front associated with this system will push across the southeast on Saturday and move across the CWA later Saturday into Saturday night.
424 AM CDT Sat Jul 29 2017 (Today and Tonight) The upper high will remain centered across the Southern High Plains again today, with hot temperatures continuing.
347 AM CDT Sat Jul 29 2017 The cold front has finally pushed south of the Red River with just a few lingering showers/storms near Hugo. The drier air has arrived as well - with dewpoints in the low to mid 60s across northeast Oklahoma/northwest Arkansas. The High Plains will stay active as storms form over the higher terrain during the day and move into western Kansas overnight Saturday into Sunday morning.
As far as the forecast for tonight, a fairly impressive trough for this time of year will continue to amplify southward across the eastern U.
Some may slip by the higher Palouse, near PUW early this evening. Otherwise expect VFR conditions, with mostly clear skies, and lighter diurnal winds at TAF sites with high pressure building in through Saturday.
A trailing surface cold front extended from near Hudson Bay southwestward across Manitoba and to the border of Saskatchewan/Montana/North Dakota. This convection is likely associated with the aforementioned trailing cold front across northern/central Canada. The lingering Canadian cold front is forecast to stall over southern Manitoba/northwestern ND, and diminish/wash out with time by this evening. An upper level ridge to the west will keep North Dakota firmly entrenched in northwest flow, leading to frequent upper level waves moving overhead. While this ridge remains west we will see a fairly stagnant pattern with temperatures in the 80s/90s each day and isolated to scattered showers and thunderstorms.
342 AM EDT Sat Jul 29 2017 High pressure builds in from the northwest while low pressure tracks well south of the Gulf of Maine, resulting in a dry and mostly sunny weekend.
Southeast Michigan positioned along the downstream flank of expansive high pressure, maintaining a deep layer of dry air within prevailing northeast flow today. Under nearly full insolation once again, this will bring readings into the lower and middle 80s all locations.
Moisture at mid-levels will be sufficient for a few afternoon/evening thunderstorms both days, mainly in the higher terrain.
Overall pattern will feature an upper high meandering over the western CONUS through the week with the CWA under northwesterly flow aloft for the most part.
529 AM CDT Sat Jul 29 2017 High temperatures today will continue to be cooler than normal for this time of year given a good deal of cloud cover. Highs should generally range from the lower 80s over south central Nebraska to the mid 80s across north central Kansas.
206 AM CDT Sat Jul 29 2017 A surface cold front has pushed roughly halfway through the forecast area, oriented in east to west along the TN River. Looking upstream, the airmass behind the front will be slow to modify, with dewpoints remaining in the lower 70s across TN. A rather pleasant day is on tap across the TN Valley, as high pressure builds southward across the area. Northerly flow will advect cooler and drier air into the region and high temperatures will only rise into the lower to mid 80s. Depending on how much our dewpoints fall, temperatures will likely drop into the lower 60s, with a few spots dropping into the upper 50s.
416 AM CDT Sat Jul 29 2017 High temperatures today will continue to be cooler than normal for this time of year given a good deal of cloud cover. Highs should generally range from the lower 80s over south central Nebraska to the mid 80s across north central Kansas.
As far as the rest of the synoptic environment goes, the ridge of high pressure will continue to slowly migrate east, allowing a steady stream of moisture to persist through the weekend. Additionally, models have been consistent in bringing a midlevel closed low across the Four Corners region overnight. High pressure begins to re-establish itself to our west through midweek which will bring a general downturn in convection. As far as temperatures go, after a cooler start on Sunday highs will gradually rebound through the new week as drier air is introduced.
Still some question as to how much cloud cover redevelops overnight, but given the low level flow out of the northeast, would expect some expansion in the low level stratus as we head through the second half of the night. With cold front now exiting south of Kentucky, have dropped the flash flood watch and removed thunder from the forecast. A cold front was bisecting the area from southwest to northeast late this afternoon. In general we remain under the influence of northwest flow and a fairly stagnant pattern through the period with a mean eastern CONUS trough and western ridge.
356 AM CDT Sat Jul 29 2017 A digging upper level trough over the eastern US will swing an unusual late July "cold front" through the area this afternoon through tonight.
529 AM EDT Sat Jul 29 2017 Pleasant conditions expect through the weekend as high pressure building into the region will keep the North Country dry and seasonably cool. High pressure continues to build into the region and should keep the North Country under quite pleasant conditions through the weekend.
The upper ridge edges east late tonight and Sunday, and rising heights will bring temperatures up a few degrees above normal, along with higher dewpoints.
At the surface, a weakening cold front is backing into the area from the east.
358 AM EDT Sat Jul 29 2017 The latest surface map features unseasonably deep low pressure across the mid-Atlantic states, with high pressure building in from the Great Lakes. Aloft, a stout upper level low is moving southeast across the central Appalachians. Very pleasant weather will be on tap for our area through the weekend, as high pressure gradually builds in from the northwest. That said, much of the eastern half of the lower 48 will remain under the influence of general long wave trough.
The subtropical ridge will remain parked to n of the CWFA thru Sunday, thus maintaining deep easterly flow. This will tend to push the mid level theta-e ridge axis to the w and thus PoPs will mostly be diminished thru Saturday. There is a low probability of tstms across the far n on Sat, if a weak surface boundary/mid level mstr can back door into the area? There are indications of tstms across PB Sun PM in assocn with weak surface boundary/mid level mstr, however this in mostly within the subtropical ridge.
Despite the drier/more stable low levels, the increasingly moist/relatively cooler mid-levels and associated lift will support elevated convective development eastward into central Kansas.
This is likely do to the existence of an inverted trough/vorticity maxima currently draped across central portions of the area. Saturday may see an increase in storm activity as compared to today, but this will depend on the movement of the inverted trough and the nature of the overnight convection.
1019mb high pressure is centered over central upper MI. That is contributing to cooler min temps than expected early this morning. Max temps near 80f to the lower 80s, cooler on the beaches as lake breezes kick in. Min temps near 50f to the mid 50s; not quite as cool as this morning, thanks to a warmer start.
1224 AM CDT Sat Jul 29 2017 224 PM CDT Quiet/dry conditions, with clear to partly cloudy skies and below normal temps expected as high pressure continues to slowly build south across the region. Tighter gradient on the fringe of this high will allow a steady north northeast wind to persist, and support continued dangerous beach conditions through the period. Rodriguez 224 PM CDT High pressure will continue to slowly build across the region Saturday night. Rodriguez High pressure centered over northern Wisconsin overnight will settle south over southern Wisconsin over the next 24 hours. BMD 329 PM CDT High pressure to the north will continue to build south across the region throughout the weekend, with northerly winds persisting through this period.
Upper level high pressure was centered over the southern Plains today. Water vapor loops show numerous disturbances rotating around the high located over the Great Basin, New Mexico and east Texas. What model consensus there is seems to put the axis of heaviest rain along the Highway 96 corridor. The models continue to show a trend toward the upper level high pressure area retrograding westward over the Great Basin through the mid to latter part of the upcoming week. This will keep temperatures at more seasonal, if not cooler, levels through the week along with nearly daily chances for showers and thunderstorms especially over western parts of the forecast area.
With an amplified upper ridge parked over the Great Basin and a deepening trough over the Great Lakes, western Nebraska is placed in northwest flow for the next several days. Surface easterlies from a high pressure over MN/IA and an upslope regime at H85 will continue to provide moisture and lift across the High Plains.
627 AM EST Wed Nov 15 2017 Southerly wind will increase over the Ohio Valley as high pressure moves east and away from the region. An area of rain will spread into the region from the west this afternoon ahead of a cold front that will cross this evening. An axis of high pressure behind this front will cross the region from west to east Thursday night.
513 AM CST Wed Nov 15 2017 12Z TAF issuance Dense fog is developing ahead of a cold front that is beginning to enter the Permian Basin. /issued 334 AM CST Wed Nov 15 2017/ Upper ridge centered over Baja with axis extending north into Canada as an upper trough off the NW Coast slowly moves ashore today and Thursday. This ridge will build over Central Mexico and remain there so not expecting any big changes in the pattern. This trough will eventually pass across the plains and push a front through the area.
406 AM CST Wed Nov 15 2017 A cold front moved across Minnesota overnight, and was in western Wisconsin during the pre dawn hours. Only the far eastern part remained under the lower clouds and some fog. No much change overnight as winds become lighter as high pressure moves overhead.
High pressure ridging will build once again across the forecast area today behind yesterdays cold front and upper level disturbance that brought the precip to the area. An upper low and trough off the Pacific northwest coast will slowly move inland tonight into the day Thursday. The ridge axis will shift east Thursday with heights lowering as the upper low and trough push east across the Northern Rockies.
A weak ridge will build briefly over the area today.
A weak ridge will build briefly over the area tonight into early Wednesday.
A weak cold front currently across the South Plains will approach the Big Country in the next few hours, the Concho Valley by mid morning, then move through the Interstate 10 corridor early this afternoon. Slightly cooler temperatures and gusty north winds of 10 to 15 mph can be expected behind the front.
418 AM CST Wed Nov 15 2017 Temperatures range from the 40s to the lower 50s across the Midsouth early this morning. Mid level cloud cover is increasing across the region ahead of an approaching cold front, currently stretching from the Great Lakes region southwest to central Texas. Slightly cooler tonight behind the cold front, with low temps mainly in the 40s. The influence of the cold front will be short lived, as we head into tomorrow expect skies to clear leading to another mild day with temperatures in the mid 50s north to mid 60s south. Winds will veer during the day as high pressure slides east and a warm front approaches from the southwest.
Showers and isolated thunderstorms associated with a cold front will continue to shift southeast through the morning. A period of IFR conditions may follow the passage of the cold front, lasting through about 18z across NE OK and possibly toward 00z at FSM. /Issued 358 AM CST Wed Nov 15 2017/ Scattered showers and isolated thunderstorms will continue this morning as a cold front moves south across the area. The frontal boundary will stall just to our south tonight before beginning to lift north as a warm front Thursday.
Templer Previous discussion: High pressure nosing out of Canada into the northern plains this morning. A band of low cloud is stretched across northeast Montana on the edge of this high. Ridge building across the northern Rockies will begin to push east today, but cold air will linger, especially in the far northeast. Upper trof off the Pacific coast moves east tonight, with frontal system lifting across eastern Montana on Thursday.
749 AM EST Wed Nov 15 2017 High pressure will move off the New England coast today.
Ceilings currently ranging between 6-10kft should gradually lower with time today as a weak cold front moves into the region from the northwest late this afternoon into the overnight hours. Winds today will be out of the south near 6-12kts with some higher gusts possible at the TYR terminal with winds becoming variable to NE near or less than 5 kts in the wake of the cold front this evening into the overnight hours. /issued 357 AM CST Wed Nov 15 2017/ Disturbance in the Central Plains as noted on wv imagery this morning will continue to spill ewd today around the upper ridge axis anchored over the Desert SW. Associated cold front will move into the nrn portions of the region today and stall along the I-20 corridor tonight.
Ridging builds in across the Southeast US on Thursday as a high pressure system slides across Texas and Louisiana.