Aikyam-Lab/Synoptic-Bench huggingface dataset:
Today Through Sunday Looking for uneventful weather, warming temperatures, and gradually increasing humidity? This forecast is for you! Cold front draped over us today washes out by evening with temps warming through the period (readings will be a few to several degrees above average for highs and lows).
Low temperatures tonight will range from the lower 40s to lower 50s. With 925 mb temperatures 6 to 9C warmer than this afternoon, high temperatures will range from around 70 to the lower 80s.
Dry conditions continued across the forecast area this Saturday morning, thanks to general high pressure situated from the Mid Mississippi to the Tennessee Valley. On a larger scale, an upper level system located over southern Ontario, had a trough extending southward to the western Ohio Valley. This trough feature was producing clouds and yes, light rain over parts of western and central Kentucky, as well portions of NW and middle Tennessee. Although the soundings from Nashville were rather dry aloft, do think that enough moisture with the trough could bring light showers over more of middle Tennessee. Influences from the synoptic pattern will change little over our area through the short term period, as we remain on the eastern edge of the ridge and northwest flow persists aloft.
227 PM MDT Sat Sep 25 2021 Persistent ridging aloft with downsloping low level flow will yield very warm and dry weather thru the start of the work week.
GOES channel 9 water vapor imagery shows an upper low centered over the northern Baja peninsula early this afternoon. Satellite data shows little movement is noted with this upper low. In advance of the low, we are seeing some high level clouds move in from the west.
318 PM EDT Sat Sep 25 2021 Short lived cold advection today behind the cold front, as heights quickly rebound tonight with increasing low level southwest flow. Warm front will attempt to become active, as moisture return (PW values returning to around 1 inch) and waves of 300 K isentropic ascent work lower Michigan tomorrow.
102 PM MDT Sat Sep 25 2021 The latest water vapor images and 500-mb analysis showed broad high pressure over much of the western CONUS with some high clouds moving mainly north of the CWA. At the surface, a lee trough was noted with some return southwest flow and 850-700mb warm advection.
Baja will begin to feel the affects of an upstream trough in the E. A noticeable increase in cloudiness and afternoon convection will be the result favored most over the high country of the San Juan range.
1122 AM CDT Sat Sep 25 2021 With steady and warm southwest breezes through the day and sunny skies, we are on track to warm into the 70s to the lower 80s by late afternoon. Cool temperatures this morning will be short-lived as an upper ridge shifts east and the upper trough exits. At the sfc this will mean highs ranging from the low 80s in central SD to the low 70s in eastern portions of the forecast area. Weak, broad low pressure will move over SD on Sunday, but conditions are expected to remain dry.
with Great Lakes centered troughing downstream of Broad western NOAM ridging. Main trough axis rotates steadily northeast overnight as mid level heights begin to rebound across the western Great Lakes. especially for areas south of the big bridge. Warmer Daytime Temperatures.
(This afternoon through Sunday night) We start off the short term portion of the forecast with an upper low located over Baja California Norte. In advance of this upper low, mid and upper moisture will increase over west Texas and southeastern New Mexico. There should be enough moisture in the lower levels Sunday afternoon to provide enough instability for thunderstorms to form over the Davis Mountains, and perhaps northward along the Delaware and Guadalupes as well.
204 PM CDT Sat Sep 25 2021 The cold front has finally made its passage, with a lone ribbon of cu still associated with its departue out of our far southeast counties at the moment of this writing. The reinforcing slightly cooler and drier air, with dew points in the 40s, will soon complete its infiltration as well.
155 PM MDT Sat Sep 25 2021 Little change in the weather picture over the next 24 hours as broad high pressure remains over the region. There is an ever so weak mid level trof over Idaho and Wyoming which will brush Northern Colorado later tonight and Sunday morning. Temperatures will be slightly warmer on Sunday as readings approach 90 degrees over lower elevations.
The center of a strong upper level trof was over eastern Iowa. Widespread showers continue to develop and move east ahead of the upper level system in the vicinity of a cold front. The upper level trof was beginning to become negatively tilted and has really helped to increase upper level support. An upper level blocking type of ridge should develop just west of the forecast area and will probably not move much for several days. Very warm air will be associated with this system as subsidence warms the lower part of the atmosphere.
912 AM MDT Sat Sep 25 2021 High pressure ridge aloft building into Colorado from the west with a light to moderate northwest flow aloft. Temperatures will be warmer today as 700mb temperatures warm to around +14c later by in the day. Today and tonight weather will be dominated by upper ridging with benign synoptic scale energy.
257 PM EDT Sat Sep 25 2021 Dry fall weather will continue across the Carolinas as high pressure dominates.
A renewed tighter pressure gradient evolves between the departed high to our southeast and a trough approaching from the Plains. Any precip would be associated with some weak mid level disturbances and the lower level baroclinic zone to our north or northeast. Low pressure is proggd into Iowa Sunday night with surface front dropping into central WI.
/issued 606 AM CDT Sat Sep 25 2021/ Early morning GOES water vapor imagery shower an progressive upper trof over the upper Midwest. This open trof was rather deep, sufficiently so to drive an associated surface pressure trof into the Midsouth this morning. Light showers were noted on radar in the vicinity of the surface trof, over southeast MO and northeast AR at discussion time.
236 PM EDT Sat Sep 25 2021 A weak cold front with limited moisture will cross the area from the northwest by early tonight. Dry high pressure will return Sunday through the early part of the week, with temperatures gradually increasing to above normal values.
/issued 800 AM EDT Sat Sep 25 2021/ A long wave trough from the Great Lakes to near the north central Gulf coast eases eastward as high pressure centered in the central plains slides to the Ohio Valley by this evening. This high pressure sprawls across much of the Gulf and FL. A slightly cooler and drier airmass is over much of the area with mostly sunny skies and very little chance of significant rainfall. High pressure dominates for the next few days with winds generally below 15 knots and seas 2 feet or less.
/Updated at 1207 PM CDT Sat Sep 25 2021/ A weak trough is in place across the southeast, while a dry cold front is sliding south through western Tennessee. In between is a pinch area of high pressure that continues to provide sunny weather through the afternoon. This is associated with an upper trough swinging across E Conus.
SHORT TERM (Now through Sunday Night): Mid level ridging will remain overhead in the short term and dominate the local weather. At the surface, high pressure will gradually shift eastward this weekend, allowing winds to remain easterly for most of the period, then become southeasterly by Sunday night. Lows tonight will still generally drop into the 60s across Deep South Texas and the RGV, with low 70s near the coast, then warm up into the low to mid 90s (only a degree or two warmer than today) on Sunday.
/Tonight through Saturday/ A large area of high pressure that helped bring a few patches of frost to parts of Iowa early this morning, is now centered over Missouri this afternoon. This system will continue to move east overnight while low pressure moves east into the Dakotas and Nebraska.
Weak ridging over Crockett/Lufkin area will be slowly weakening and shifting east.
330 PM EDT Sat Sep 25 2021 High pressure will build into the region tonight and Sunday.
319 PM CDT Sat Sep 25 2021 Upper trough is tracking across the Great Lakes and Ohio Valley with northwest flow aloft over the Northern/Central Plains. Meanwhile, water vapor imagery shows an upper low spinning over northern Baja. At the surface, high pressure is centered over the Ozark region with Lee troughing starting to deepen over eastern CO. At the same time Lee trough will continue to strengthen which will setup very windy conditions across all of southern KS for Sun. Upper low will slowly track east into the Desert Southwest on Mon with airmass not expected to change. So we are looking for another day of well above normal temps for Mon, with highs topping out in the low 90s.
A ridge over the region will make for a nice weekend overall.
Dry and quiet weather is expected through the short term period as high pressure builds in the aftermath of the surface cold front passage. A widely scattered cu field looks to develop by mid afternoon but with warmer temperatures aloft, coverage should be less than today.
The atmosphere is primed with plenty of moisture and instability today with the region in the favored area with respect to the upper low just off the north Baja coast. /issued 306 AM MST Sat Sep 25 2021/ The weather pattern will remain rather progressive as a low pressure system impacts the region this weekend with another one slated for late in the upcoming week.
Good radiational cooling can be expected tonight with a clear sky, light wind, and surface dew points only in the lower to middle 40s resulting in slightly below normal low temperatures.
1123 AM CDT Sat Sep 25 2021 Mostly sunny skies along with breezy westerly winds and cooler conditions will prevail today, with highs in the lower 70s.
942 PM EDT Sat Sep 25 2021 High pressure will build into the region tonight and Sunday.
1027 PM EDT Sat Sep 25 2021 A weak cold front with limited moisture will cross the area from the northwest by early tonight. Dry high pressure will return Sunday through the early part of the week, with temperatures gradually increasing to above normal values.
516 PM MDT Sat Sep 25 2021 The latest water vapor images and 500-mb analysis showed broad high pressure over much of the western CONUS with some high clouds moving mainly north of the CWA. At the surface, a lee trough was noted with some return southwest flow and 850-700mb warm advection.
/issued 231 PM CDT Sat Sep 25 2021/ SHORT TERM (Now through Sunday Night): Mid level ridging will remain overhead in the short term and dominate the local weather. At the surface, high pressure will gradually shift eastward this weekend, allowing winds to remain easterly for most of the period, then become southeasterly by Sunday night. Lows tonight will still generally drop into the 60s across Deep South Texas and the RGV, with low 70s near the coast, then warm up into the low to mid 90s (only a degree or two warmer than today) on Sunday.
613 PM CDT Sat Sep 25 2021 High pressure and a very dry airmass will remain over the region tonight. The transition from cooler to above normal temperatures will begin on Sunday as southerly winds increase in response to a deepening area of low pressure over the central Plains.
Pressure ridge over the region. Short wave trough moving northeast across West Virginia this evening. Lows tonight in the low to mid 50s. although a few outlying areas may be a little cooler. High pressure will remain in control at the surface with the upper level trough swinging offshore Sunday morning.
601 PM CDT Sat Sep 25 2021 (This evening through Sunday) Tranquil weather will persist the next 24 hours as weak ridging aloft prevails. Lows tonight will be in the 50s, with highs tomorrow mainly in the upper 80s, with a few readings in the lower 90s across the northern Big Country.
Most locations will reach the low/mid 90s, which is at least 10 degrees above late September climo. The only other sensible weather change may be the tendency for more cirrus along the crest of modest upper level ridging migrating eastward ahead of the closed low across the Southwest.
658 PM CDT Sat Sep 25 2021 Nearby high pressure will bring fair skies tonight, with lows in the upper 40s to near 50 degrees. Mostly sunny skies along with breezy southwesterly winds will bring warmer upper 70s and lower 80s on Sunday afternoon.
1026 PM EDT Sat Sep 25 2021 Currently - Weak troughing off the Atlantic coast is moving out, allowing a 1020 high over the southeastern United States to begin spreading southeastward across our area. However, weaker isolated activity has recently sprouted in the Lower and Middle Keys. Weak ridging is beginning to spread southeastward into our area from the southeastern United States.
930 PM EDT Sat Sep 25 2021 Pleasant evening ongoing with the Ohio Valley under the influence of high pressure. The only adjustment needed is to bump cloud coverage for the next few hours over northern parts of central Indiana as an area of cirrus tracks through the lower Great Lakes and grazes our northern counties. Dry and quiet weather is expected through the short term period as high pressure builds in the aftermath of the surface cold front passage. A widely scattered cu field looks to develop by mid afternoon but with warmer temperatures aloft, coverage should be less than today.
A pleasant day with west winds blowing at 12 to 25 mph is found outside today, with high pressure centered to the south of the area. Tonight, as the high pressure drifts east, we'll see winds shift to south. Dewpoints in Kansas are in the lower to upper 40s, and that should be what we see tomorrow.
Expect another cool and dry night as high pressure remains in control across the region. /27/ Prior discussion below: High pressure at the surface and aloft is the primary influence on the region's weather. The trough has dragged a weak cold front (little more than a dew point gradient) into far northern MS, where it should wash out overnight. The boundary may serve as a focus for some fog development in drainages overnight, especially with high pressure allowing for good radiational cooling potential where winds can go calm. Low temperatures will likely fall into the lower to mid 50s across much of the area again. Then tomorrow as an upper-level ridge begins to take hold to our west, rising mid-level heights and continued sunny skies will allow for temperatures to warm back into the mid and upper 80s for most locations.
703 PM EDT Sat Sep 25 2021 SE MI quickly transitions from a post cold front environment to a pre warm front environment tonight. Westerly surface wind is powered by the gradient between Ohio valley high pressure and northern Plains low pressure tonight and Sunday. Short lived cold advection today behind the cold front, as heights quickly rebound tonight with increasing low level southwest flow. Warm front will attempt to become active, as moisture return (PW values returning to around 1 inch) and waves of 300 K isentropic ascent work lower Michigan tomorrow.
903 PM EDT Sat Sep 25 2021 Dry fall weather will continue across the Carolinas as high pressure dominates.
High pressure will be reinforced from the north through the weekend, with rain chances remaining low and restricted to the southern zones in the afternoon. Lows tonight are on track to fall into the mid to upper 60s north to the lower to mid 70s central and south. E/NE flow will be in place as high pressure is reinforced into the area from the north. Ridging will remain in place across the area through the weekend with winds and seas remaining below headlines.
542 PM MDT Sat Sep 25 2021 Little change in the weather picture over the next 24 hours as broad high pressure remains over the region. There is an ever so weak mid level trof over Idaho and Wyoming which will brush Northern Colorado later tonight and Sunday morning. Temperatures will be slightly warmer on Sunday as readings approach 90 degrees over lower elevations.
Regional radar loop at 2230Z shows a fairly solid line of showers moving into the Allegheny Plateau associated with approaching cold front. Strong large scale forcing ahead of deep upper trough will likely sustain at least a broken line of showers moving through the central mountains this evening. Latest HRRR, which should perform well under such strong forcing, supports the chance of a shower over all but the Lower Susq Valley, as front moves through this evening. The highest pwats and best chance of measurable rain this evening will be across the northern mountains.
728 PM EDT Sat Sep 25 2021 A weak cold front with limited moisture will cross the area from the northwest by early tonight. Dry high pressure will return Sunday through the early part of the week, with temperatures gradually increasing to above normal values.
Nudged lows down by a couple of degrees for much of the area and by almost 5 degrees in some of the cooler spots. A renewed tighter pressure gradient evolves between the departed high to our southeast and a trough approaching from the Plains. Any precip would be associated with some weak mid level disturbances and the lower level baroclinic zone to our north or northeast. Low pressure is proggd into Iowa Sunday night with surface front dropping into central WI.
Drier air is filtering into the region in the wake of this morning's cold front and brief rains. High pressure will build in tonight, becoming centered briefly over central KY in the overnight hours. With skies clearing areawide this evening, those locations in the south and southeast will have a cooler start to the evening. That high pressure will be east of the region during the day Sunday.
604 PM CDT Sat Sep 25 2021 /00Z TAFs/ Weak high pressure over South Texas will continue through Sunday, resulting in weak low level easterly flow and mostly clear skies. A weak mid to upper level ridge will remain over south Texas tonight into Sunday, then slowly shift eastward into the Gulf waters Sunday night.
This should keep lows a tad warmer than previously thought. If the front does move further south, cooler morning temperatures could occur. Otherwise under sunny skies, another slightly cooler than average early fall day will start a new week. Closer to normal temperatures for the start of a new work week, with highs warming into the low/mid 80s - normal highs ~84F, and low temperatures near 60.
Upper trough is tracking across the Great Lakes and Ohio Valley with northwest flow aloft over the Northern/Central Plains. Meanwhile, water vapor imagery shows an upper low spinning over northern Baja. At the surface, high pressure is centered over the Ozark region with Lee troughing starting to deepen over eastern CO. At the same time Lee trough will continue to strengthen which will setup very windy conditions across all of southern KS for Sun. Upper low will slowly track east into the Desert Southwest on Mon with airmass not expected to change. So we are looking for another day of well above normal temps for Mon, with highs topping out in the low 90s.
The cold front has finally made its passage, with a lone ribbon of cu still associated with its departue out of our far southeast counties at the moment of this writing. The reinforcing slightly cooler and drier air, with dew points in the 40s, will soon complete its infiltration as well.
/GG/ High pressure at the surface and aloft is the primary influence on the region's weather. The trough has dragged a weak cold front (little more than a dew point gradient) into far northern MS, where it should wash out overnight. The boundary may serve as a focus for some fog development in drainages overnight, especially with high pressure allowing for good radiational cooling potential where winds can go calm. Low temperatures will likely fall into the lower to mid 50s across much of the area again. Then tomorrow as an upper-level ridge begins to take hold to our west, rising mid-level heights and continued sunny skies will allow for temperatures to warm back into the mid and upper 80s for most locations.
644 PM CDT Sat Sep 25 2021 A weak cold front is working through Arkansas this evening. High pressure will build in behind it and VFR conditions will continue. Today Through Sunday Looking for uneventful weather, warming temperatures, and gradually increasing humidity? This forecast is for you! Cold front draped over us today washes out by evening with temps warming through the period (readings will be a few to several degrees above average for highs and lows).
Pleasant evening ongoing with the Ohio Valley under the influence of high pressure. The only adjustment needed is to bump cloud coverage for the next few hours over northern parts of central Indiana as an area of cirrus tracks through the lower Great Lakes and grazes our northern counties. Dry and quiet weather is expected through the short term period as high pressure builds in the aftermath of the surface cold front passage. A widely scattered cu field looks to develop by mid afternoon but with warmer temperatures aloft, coverage should be less than today.
737 PM EDT Sat Sep 25 2021 High pressure will build into the region tonight and Sunday.
WAA regime strengthening on gusty SSW winds will lead to notably warmer conditions.
A wave moving around a northeast CONUS upper trough will support the southward advancement of a surface cold front.
310 AM CDT Sun Sep 26 2021 Early this morning an upper low was located over Baja while a northwest flow was noted across the Plains with a rough in the east and another trough approaching the BC coast. Deep mixing on forecast soundings will result in minimum RH around 20 percent for the western 2/3rds of the cwa this afternoon with values around 25 percent across the east as temperatures warm into the low to mid 90s.
High pressure is building in from the northwest and expect most lingering low clouds across the area to dissipate in the next few hours. Still think there will be a few low clouds associated with cold front moving through and some light winds to keep fog risk minimal so continue VFR conditions there.
114 AM EDT Sun Sep 26 2021 A weak cold front with limited moisture will cross the area from the northwest by early tonight. Dry high pressure will return Sunday through the early part of the week, with temperatures gradually increasing to above normal values.
(Today and tonight) Warm and dry again today, with upper ridging over the region. There will be an increase in low level moisture late tonight as southeast to south winds of 5 to 15 mph begin to advect dew points in the low to mid 50s into the region.
324 AM CDT Sun Sep 26 2021 Upper ridging will continue to dominate the region today and tonight. Upper flow will begin to be more southwesterly and diffluent late tonight into tomorrow morning as the upper low currently over southwestern Arizona moves towards the Four Corners region. Showers are expected to develop ahead of the upper low but should stay just west of the Texas/New Mexico state line through sunrise tomorrow.
Highs should be warmest along the South Dakota border and slightly lower along the Canadian border, as a weak cold front drops southward through the FA. Winds should become light tonight with minimal cloud cover, which will result in a slightly cooler night.
South to southwest winds will pick up this afternoon as the surface pressure gradient tightens in response to a surface cyclone developing across the High Plains.
Expect to see a fair amount of mid/high clouds through the day today, but should still see plenty of sunshine filtering through those, allowing highs to be a good ten degrees or so warmer than Saturday in most locations.
238 AM MDT Sun Sep 26 2021 An upper level ridge over the Rockies has brought warm and dry conditions this weekend to our CWA. Temperatures will be above average for this time of year, with most places in our region seeing temperatures 10 degrees warmer than normal.
The synoptic- scale pattern is characterized by troughing over the mid-Atlantic, a closed low just south of southern California and Arizona, and broad ridging extending over the north west and north central CONUS.