Aikyam-Lab/Synoptic-Bench huggingface dataset:
254 PM MDT WED JUL 27 2016 An upper level ridge over the Great Basin will sink south over the next 24 hours as an short wave trough moves across the Northern Plains. Plan on having the highest pops here. The short wave trough passing to the northeast of Colorado is expected to help trigger thunderstorms over northeast Colorado. Thursday night upper level high pressure will be centered over extreme southwestern Utah with a northwest flow aloft over Colorado. cooler and moist air behind the boundary could result in low clouds across the Plains.
258 PM CDT WED JUL 27 2016 A weak upper low pressure area will continue to track generally northward along the Mississippi River tonight. The weak upper low will be absorbed into the upper trough (currently over the Northern Plains and Upper Midwest region) later tonight, with the trough slowly advancing eastward. The upper ridge centered just off the East Coast will gradually break down, with troughing dominating the eastern CONUS by the weekend.
The mean layer ridge remains just south of the region and PWATS remain what looks to be a little below normal.
Upper ridging continues to build over the region from the Western Atlantic with limited moisture to keep this afternoons precip delayed and only in the isolated to scattered range into this evening.
256 PM CDT WED JUL 27 2016 Cold front extending from central MN into northern NE will push into the area tonight. Thus precip chances across the area remain slim at best tonight but with the front moving into the area, will still maintain a 20% chance, with all precip chances winding down by daybreak Thursday as high pressure continues to build into the area. Will go dry for Thursday with high pressure and northerly flow, with below normal temps in the lower to mid 80s. All precip chances remain well west of the forecast area across the High Plains.
High pressure and a drier airmass nudges into the region today. Expect a cooler and less humid airmass along with dry weather.
Convective coverage is expected to be a bit less Thursday afternoon than it has been the past couple days, and this should allow afternoon temperatures to be a bit warmer than today in most places.
Better chances for showers and storms arrives on Thursday as a trough of low pressure moves into the region.
To our north a wave in the faster westerlies is moving from the northern Rockies into the high plains and drier air is sweeping in behind on northwest flow. Temperatures stay above normal with triple digits expanding across the lower southwest valleys of the CWA.
Primary mechanisms for convection will be associated with a cold front slowly dropping into northern Wisconsin this morning and an approaching short wave trough centered over west central minnesota early this morning. While these pwat values normally would not indicate heavy rain alone, the slow movement of the cold front and short wave trough will likely also produce slow storm movement.
Forecast trend will continue to focus higher pops to shift south over the southwest into the evening as cold front moves south. Highs today will range from the low to mid 80s north central and central to the upper 80s far southwest. Lows kept near previous forecast from the upper 50s northwest to the lower 60s south and east.
Weak upper low moving north along the MS river delta, with SHRA/a few TSRA working into our northern MS counties. Today, a weak upper level low will move into Northwest Mississippi and will dissolve over the area by Thursday. For Thursday into at least the early part of the weekend, a broad upper trough will move in over the region.
Evaporative coolers will work efficiently as afternoon dewpoints will drop into the 30s, except lingering in the 40s in the southern valleys.
322 PM MST WED JUL 27 2016 The high pressure ridge is building westward andwill begin limiting the monsoon moisture moving up into northernArizona. Isolated to scattered showerswill develop across the higher terrain. The next few days will see a trend towards drying conditions as the subtropical ridge moves westward and stears the moisture away fromNorthern Arizona through the weekend.
Medium Inverted trough axis is proggd to be situated across the wrn CWA with some flattening of this feature into the afternoon hours. 925 flow turns more to the northeast so a cooler thermal profile takes hold.
558 PM CDT WED JUL 27 2016 Remnant shear axis in the form of a filling upper trough continues to define itself across the Tenn Valley into the heart of the Four State Region into Southeast Texas attm. While the upper level trough lifts out into the Tenn Valley another weak disturbance aloft will shift south and east in its predecessors wake overnight tonight and that combined with a myriad of sfc based outflow boundaries could provide the necessary something the short term progs are hinting at. Weak upper trof will spill over the ern periphery of the Four Corners ridge and swd into our region tonight into Thursday, merging with the stalled ely wave present over ern LA.
(Issued 1054 AM CDT WED JUL 27 2016) Low cloud cover pushed in this morning allowing for temps to run a few degrees behind yesterday's trend with current obs in the lower 80s around the TN Valley. Even though the radar looks clear, isolated light rain showers have been reported over the past hour or so as the low stratus deck progresses northward. With the TN Valley on the western edge of the ridge stationed in the southern Atlantic, the combination of a weak disturbance and enhanced WAA and moisture advection will increase our precip chances throughout the day.
Weak tropical upper low continues moving slowly north along the AR/MS border. Daytime heating and upper low combined to produce SHRA/TSRA. Upper low to continue lifting out tonight, with a larger-scale trough settling generally over the OH Valley area.
Morning surface and upper level analysis shows stacked ridging building over the area. High temperatures will be warmer than yesterday, with mid 90s common areawide.
Tonight and Thursday An upper trough will move across the region during the late afternoon and evening hours, while a surface cold front also drops south across the area. Thursday Night Through Wednesday Any lingering showers should shift out of our southern counties Thursday evening, as Canadian high pressure and associated drier air edges into the forecast area.
An upper high over the Great Basin Region will allow for a northerly to northeasterly upper flow across the Panhandles today through Thursday.
Nudged highs up a degree or two for most areas as temperatures should not have any problem reaching the lower 90s, especially northern zones. Somewhat stronger deep layer shear around 20 knots versus yesterday along with slightly cooler mid level temperatures around -6C will allow for some strong storms with wet microbursts and brief locally heavy rain this afternoon as well, but no widespread strong or severe convection is anticipated. Expect a lull in showers and storm this evening then more widespread showers/storms with MVFR/IFR vis/cigs developing late in the TAF period as an area of low pressure moves across the region.
1055 AM EDT Sat Oct 22 2016 A mostly dry cold front cleared the Florida Keys this morning, and is moving steadily southward over the Straits of Florida. A Small Craft Advisory was issued for the coastal waters west of the Seven Mile Bridge. A Small Craft Advisory is in effect for the coastal waters west of the Seven Mile Bridge. A cold front will move southward across the Straits of Florida and Cuba this afternoon and tonight.
1029 AM EDT Sat Oct 22 2016 AN upper trough will cross the region this morning.
For the forecast, even with the approaching upper ridge, cooler northerly flow will limit temperatures today to around seasonal, low 70s north to mid 70s south.
527 AM MDT Sat Oct 22 2016 Early morning WV imagery and RAP upper level analysis showing broad ridging across the souther plains and zonal flow across the northern plains along the northern apex of the ridge. At the surface lee trough is in place near the front range with southerly gradient in place over our CWA.
1005 AM EDT SAT OCT 22 2016 High pressure will bring much cooler and drier air to the region through the weekend.
A pleasant fall day is in the works today as southerly winds will continue to help bring in warmer readings. The warm weather continues into Sunday, with maximum readings a couple degrees warmer.
High pressure will continue to dominate the region for the next several days with return flow beginning across the western portions of the area tonight and areawide Sunday and Sunday night.
High pressure continues to build into the area with a cooler and much drier airmass continuing. For the forecast, even with the approaching upper ridge, cooler northerly flow will limit temperatures today to around seasonal, low 70s north to mid 70s south.
Dry weather should return Sunday under high pressure. Cold advection will continue through the morning, with a few snow showers mixed in for the higher ridges and I-80 corridor into late morning. As flow turns anticyclonic tonight showers will end, with warm advection actually beginning after midnight as low pressure exits toward New England. Winds will be gusty to over 40 MPH in the ridges into this evening, then diminish overnight. Sunday will begin dry as high pressure tracks well to our south. The best chance for showers late Sunday and Sunday night will lie north of Pittsburgh where the best low-level convergence will be seen, with some isolated activity possible along the ridges. The low will drag a front across Sunday night, which will bring temperatures back to below normal.
1002 AM CDT SAT OCT 22 2016 15z/10am surface analysis shows ridge axis extending from the Great Lakes to the western Gulf, with southerly return flow developing across central Illinois. As the ridge axis slips further to the southeast during the period, southerly return flow will cause temperatures to warm. This will push a cold front southeast across central IL Sunday evening and existing southeast IL overnight Sunday night. Lows Sunday night in the mid to upper 40s, with Galesburg reaching the lower 40s.
At the same time, upper level ridging will be building as well. Noticeably warmer by Sunday with highs back into the mid and upper 80s.
High pressure building in today for a return to a quite weather pattern. The low to mid level clouds that have persisted over northeast TN should move out of the area this morning for a mostly sunny afternoon.
So the south winds combined with sunny skies will allow temperatures to warm up to near normal, in the low 60s far east to around 70 degrees over central Missouri. Continued warmer trend on Sun ahead of the approaching cdfnt. The GFS digs the trof too far south to become a cut off low.
Ridging at the surface and aloft drifts off to the east today through Sunday as a weak mid level trough approaches from Mexico.
High pressure will continue to build over the state through Sunday with cool and dry Canadian air dominating the region.
Will start this morning with a weak cold front set up near the ND/SD border, but little in the way of impacts expected from this boundary. Another day in the 60s can be expected on southeasterly winds, with a few readings in the low to mid 70s far southwest. Low pressure across MT this morning will shift across Lyman County by 00Z, before exiting to west central MN by 06Z Sunday. This will help limit the high grassland fire danger index values, although RH values will still fall to 20-30 percent southwest of Pierre. Northwesterly winds and cooler air will return for Sunday as high pressure slides overhead.
702 AM EDT Sat Oct 22 2016 Cold front has moved offshore with cooler and substantially drier air overtaking the area. An upper level trough axis will cross the region this afternoon allowing reinforcing cold air into the area. The cooler air will reside over the region through the weekend with mostly clear skies. Cold advection pattern will prevail through the day as colder and drier air pushes into the region with high pressure. A broad upper ridge will build over the center of the country with northwesterly flow aloft over the forecast area. At the surface, high pressure will be centered over the deep south. Full insolation and weak warm air advection will result in near normal high temperatures in the lower 70s.
High pressure will dominate this period with a continuation of dry wx along with a slight warming trend. Morning lows will be in the lower 40s with aftn highs arnd 80.
Temperatures will cool off to closer to normal this weekend as high pressure currently over the West Coast moves to the east.
930 AM PDT Sat Oct 22 2016 Fair slightly cooler weather will occur today as high pressure aloft weakens and onshore flow develops.
708 AM CDT Sat Oct 22 2016 Massive subsidence over the central conus under upper ridge with very dry air as seen in IR imagery. Highs in the low 70s yesterday will give way to mid to upper 70s to around 80 today with clear skies. Upper level ridging will dominate the synoptic pattern the next several days across the central portions of the United States.
With the upper ridging over the Central Plains into Texas today and north/northwest flow into Alabama, cold air advection will keep temperatures on the cool side today and tonight.
The first touch of lake effect snow flakes are possible over some of the higher ridge tops. No accums are expected through the daylight hours with the temps (esp ground temps) above freezing. Mins tonight will range from the mid 30s northwest to the lower 40s southeast. while highs Sun range from the mid 50s north to the lower 60s southeast.
650 AM CDT Sat Oct 22 2016 Got a little warmer yesterday than what I was thinking and so with that in mind, I bumped up highs today a little bit. Models continue to show a weak trof/front to pass through the area overnight tonight but not expecting anything with the passage other than a little cooler air for Sunday.
Highs will be mainly in the lower 60s with a northwest wind 5-10 mph. As high pressure settles into the area, VFR flight rules with a light northerly wind will prevail throughout this TAF cycle.
An area of low pressure is gradually pulling off of the New England coast. Aloft, troughing is moving towards the Eastern Seaboard, with broad ridging occurring across the Plains. Meanwhile, an area of low pressure will emerge from the Plains and head east, dragging a cold front across the Ohio Valley by late Sunday. Highs will be 10 to 15 degrees warmer than today, with upper 60s to lower 70s expected.
/issued 200 AM CDT SAT OCT 22 2016/ Dry air quite apparent on water vapor imagery this morning as high pressure aloft rotates over Texas.
but the warmer locations will likely continue to cool through sunrise.
This will result in a pleasant fall day across the ArkLaMiss as highs warm into the low and middle 70s under sunny skies.
High pressure will continue to build into the region today, providing mostly clear skies. High pressure will dominate this period with a continuation of dry wx along with a slight warming trend. Morning lows will be in the lower 40s with aftn highs arnd 80.
Should stronger winds mix down behind the cold front this afternoon, a change in direction may become necessary. Maliawco Upper air pattern features a ridge setting up over the high plains with trof digging along the west coast for the short term. This wave also pushing a cold front through eastern Montana with a some light rain occuring over the hiline. Remainder of the period will see the upper ridge building north with high pressure drifting across the northern plains.
/Today/ High pressure has shifted off to the southeast with southwesterly flow picking up ahead of a developing area of low pressure along the front range of the Rockies.
Forecast area will be in-between systems today with high pressure to the south and a trough passing to the north, resulting in light southwest winds. A cold front will sweep across the region on Sunday.
1153 AM EDT Sat Oct 22 2016 AN upper trough will cross the region this morning.
Relatively quiet weather is expected until mid week when a low pressure system brings another shot of widespread rain. In the short term, high pressure will briefly impact the Michigan today then another cold front will move south through the Great Lakes on Sunday.
Today and Tonight, An upper level ridge across the southern high plains will move east across the southern plains. An upper level trough will ride around the upper ridge axis across the northern plains. Highs Today will warm into the lower to mid 70s across northeast and east central KS with mid to upper 70s across north central and central KS.
1025 AM EDT Sat Oct 22 2016 Cool high pressure will prevail through Sunday.
920 AM MDT Sat Oct 22 2016 a fairly substantial lee trough will be in eastern Colorado this afternoon. with a dry cold front dropping across northeast Colorado early Sunday morning. The large upper level ridge centered to our south will keep very dry and warm conditions in place. Temperatures will be about 3-4 degrees warmer than yesterday as we see a bit more warm advection and stronger downslope component. Most of the forecast period will be dry and unseasonably warm as upper ridging dominates the weather pattern across the western half of the United States.
935 AM MDT Sat Oct 22 2016 Weak disturbance was moving across northern Montana this morning dragging an associated cold front across the region. High pressure ridging gets flattened somewhat today as an upper level disturbance moves across the northern half of the state. This will sweep a Pacific cold front across the area late this morning into early this afternoon. High pressure ridging will begin to build across the northern Rockies once again tonight and especially during the day Sunday. Afternoon temperatures today will be in the lower to middle 60s. Although heights will be rising Sunday, 850mb temperatures behind today's front will be slightly cooler resulting in highs in the upper 50s to lower 60s for most areas across the lower elevations on Sunday.
The ridge axis that his been over NM will shift east of state today, allowing some mid and high level clouds over west and especially southwest parts of the forecast area.
As the ridge axis slips further to the southeast during the period, southerly return flow will cause temperatures to warm. This will push a cold front southeast across central IL Sunday evening and existing southeast IL overnight Sunday night. Lows Sunday night in the mid to upper 40s, with Galesburg reaching the lower 40s.
The ridge will move across the mid state overnight, so that we'll start to pick up some return flow by early Sunday morning.
/issued 234 AM CDT Sat Oct 22 2016/ An upper level ridge of high pressure centered over west Texas will move east across Texas to the Gulf Coast by Sunday. Behind this ridge a weak upper level disturbance will approach the Davis Mountains and Big Bend from Mexico on Sunday during peak heating and could spark isolated late afternoon and early evening thunderstorms.
Upper ridge centered over W TX this morning will shift ewd today as the upper trof over the E coast shifts offshore. Abundant sunshine and the upper ridge's increase in influence across our region will allow for our temps to reach into the mid 70s today, and continue a warming trend into the low to mid 80s through much of the upcoming work week.
High pressure will dominate the weather across north and central GA today. 14z /10am/ temperatures were generally in the lower to mid 50s. /Issued 738 AM EDT Sat Oct 22 2016/ High pressure will continue to build over the state through Sunday with cool and dry Canadian air dominating the region.
High pressure remains in control over the Midwest. Temps are several degrees warmer than last night for most areas across E Iowa/NW Illinois from effects of light southerly winds and scattered mid-level clouds.
A very nice day is on tap with clear skies and highs in the low 70s across much of the area. High pressure will continue tonight and with clear skies and strong radiational cooling, expect lows to fall into the upper 30s/low 40s.
All models still in general agreement with bringing s/wv trough from the Baja region of Mexico on Sunday, but should not result in anything over than increase in mid-high cloud cover. At the same time, low-amplitude wave moving through main band of westerlies over the Great Lakes region will push a cold front toward the Southern Plains late Sunday.
740 AM EDT SAT OCT 22 2016 High pressure will bring much cooler and drier air to the region through the weekend.
Precipitation will diminish later this morning with clearing skies this afternoon as high pressure builds over the region. Broken mid- to upper-level cloud cover through about 18Z/Sat should become scattered thereafter as a high pressure ridge builds-in behind the disturbance.
Despite low pressure quickly shifting through the region Sunday into Sunday night, dry conditions will limit precip development.
The first touch of lake effect snow flakes are possible over some of the higher ridge tops. KCCX continues to pick up light returns over the West Central mountains and Laurel Highlands as cooler air advects over the region. and we'll certainly be looking at a few wet snowflakes mixing in at times with some of the showers over the higher terrain of the northwest and northern mountains. Highs today will only range from the lower 40s northwest to the lower to middle 50s southeast. Mins tonight will range from the mid 30s northwest to the lower 40s southeast. while highs Sun range from the mid 50s north to the lower 60s southeast.
A stable and exceptionally dry airmass is over the central Gulf Coast States as high pressure moves across the region. Temperatures are lower (cooler) in the lowest 7500 feet compared to yesterday. This morning has been some of the coolest temperatures that we have seen this season and expect another cool night tonight as high pressure continues to build in.
A weak cold front will bring a chance of rain to locations west of a Ukiah to Weaverville line for Sunday. A mid-level low located offshore from Washington will send a cold front across the area on Sunday.
Near Record Lows Possible Tonight over Inland Northeast and Late morning surface analysis depicts a sprawling dome of cool high pressure (1024 millibars) blanketing the Tennessee and Lower Mississippi River Valleys and expanding southeastward as strong low pressure (988 millibars) is pivoting inland over coastal New England. deep troughing positioned over the eastern third of the U. is progressing eastward, with ridging amplifying over Texas and the Desert Southwest.
Upper ridging aloft and southerly low level flow at the surface will support a sunny and warmer day across central and southeast Kansas.
1249 PM EDT Sat Oct 22 2016 Deepening low pressure off the coast of Maine will track north through Maine and into eastern Canada today through Sunday.
956 AM EDT Sat Oct 22 2016 Upper level trough keeps clouds showers and clouds through this morning. High pressure late today into Sunday. Re- enforcing moisture-starved cold front Sunday night. The upper low pressure system exit to our northeast today. A high pressure system builds from the Gulf states, northeast into the OH Valley and WV.
109 PM CDT FRI AUG 5 2016 Broad high pressure will settle over the area today and tonight, with a very modest northerly breeze pretty much dying to near calm tonight. High temperatures today will range from 78 to 84, with the warmer readings northwest, HON/9V9/MHE area.
Cooler than normal temperatures and extensive night and morning inland low cloud coverage can be expected for the remainder of the week and upcoming weekend. This means southerly winds along the immediate coast for many areas with the low clouds being pulled into the coast. An upper level low over western British Columbia will drop slowly southeast into the Pacific Northwest during the weekend. A second upper trough is forecast to move through the area Saturday maintaining the deep marine layer. This trough is a little stronger and does bring increasing instability to northern California.