Aikyam-Lab/Synoptic-Bench huggingface dataset:
Winds should veer to the west or northwest at KABI by early evening, just ahead of an approaching strong cold front. At this time, the cold frontal passage and associated wind shift at KABI is expected to be just after 00Z. These downsloping southwest winds will bring warmer air into the region, resulting in afternoon highs climbing into the mid 80s just ahead of an approaching strong Canadian cold front. (Thursday night through Thursday) Changes in the weather are in store beginning Thursday night as a strong cold front swings through the Big Country bringing strong northerly winds at 15-20 MPH with gusts up to 30 MPH.
705 PM EDT Wed Oct 25 2017 An upper level trough is currently crossing the area, producing broken to overcast midlevel cloud cover. This should persist until around 06Z to 09Z, when clouds should decrease as the trough exits the area.
Gusty southwest winds will increase during the day Thursday across SE OK/NW AR ahead of a cold front, which will move into NW OK by mid/late afternoon. Temperatures will then warm to well above normal levels Thursday just ahead of a strong cold front that will sweep across the area late Thursday and Thursday night.
The high will shift to the east by Thursday morning with winds bcmg southwesterly and increasing to around 10 KT by midday, with gusts to near 20 KT at BPT/LCH during the aftn. Relative humidity values are down in the lower 20 percent change range, with no clouds in sight.
1114 PM CDT Wed Oct 25 2017 A weak trof of low pressure is moving across the forecast area this afternoon. The surface reflection of this wave will move into Minnesota by late Thursday afternoon and the cold front associated with the system will push into northwest Missouri by 18Z and further into central and northeast Missouri and west central Illinois by late afternoon. Warm south-southwest flow and plenty of sunshine ahead of the cold front will produce a good warm up in the afternoon to well above normal temperatures in the low to mid 70s. Ridging builds in Wednesday in advance of the next trof that is diving south.
0530 PM MDT Wed Oct 25 2017 Aviation Section Updated A fast moving cold front will move southward through the region Wednesday night, producing some scattered rain and snow showers across Central Montana.
707 PM MDT Wed Oct 25 2017 Upper ridge covers the western CONUS, and a deep trough continues to dig into the east coast. Strong upper wave will push into the northern plains tonight with a cold front, bringing strong winds and some rain/snow showers.
842 PM EDT Wed Oct 25 2017 Clearing skies and light winds will allow temperatures to fall into the low 30s tonight with widespread frost.
The medium amplified upper level trough over the eastern conus will lift northeast across the western Atlantic, followed by a very broad upper level ridge building over the southeast conus on Thursday. Northwest surface winds this evening will shift to the west and then south through late Thursday afternoon as a ridge of high pressure across northern Gulf of Mexico moves quickly eastward, with a high pressure center eventual forming just off the southeast coast.
/issued 250 PM CDT Wed Oct 25 2017/ High pressure beginning to move east, overnight lows will modify somewhat from last night, which were the coldest readings of the season thus far. In fact, temps fell to just around the freezing mark across extreme northern sections of area. Another stg cold front will enter Red River Valley late Thu night and have placed a slgt chance of rain near front, as very lgt precip may squeeze out of the low cloud bases underneath steep post frontal inversion.
High pressure over the Gulf of Mexico will continue sliding east tonight and tomorrow with winds gradually backing to the southwest to south near dawn Thursday.
Afternoon highs were as much as 20 degrees cooler than yesterday at Point Reyes and Half Moon Bay where high were 65 and 72 degrees, respectively. Other coastal locations saw anywhere from 10 to 13 degrees of cooling, but with highs still reaching into the lower 80s. The ridge of high pressure that is currently over the region will weaken ever so slightly as it shifts eastward, resulting in a continued gradual cooling trend through the end of the work week and into the weekend.
830 PM CDT Wed Oct 25 2017 Latest water vapor imagery shows the deep upper trough that moved through yesterday now moving through NC with drier and cooler air filtering in from the northwest. A band of clouds associated with the trough has moved off to the east leaving clear skies across much of the area, maybe a high cloud floating around here or there. With the lowering of the temps, have added patchy frost to the cooler and sheltered locations. The upper ridge will continue to build eastward on Thursday, as an upper trough swings east of the Rockies and into the Upper Midwest. The upper trough will continue to push eastward during the overnight hours on Thursday, with a cold front trailing from its parent low over the Great Lakes.
/BB/ Tonight through Thursday: Overall a quiet & cooler conditions will remain around overnight as high pressure & ridging continue to be the dominant feature over the area. Due to a developing low pressure in the northern Plains, there should be some pressure gradient along & north of the I-20 corridor to keep winds up. Lows should fall into the low-mid 40s, some 5-8 degrees below normals. As a strong trough digs into the northern Plains & Great Lakes into Thursday, efficient lift & divergence will help a low pressure to develop & deepen as the trough digs southeast. This will help drag a cold front through the central Plains by Thursday afternoon to early evening.
Modest cooling is anticipated during the second half of the week as high pressure weakens, but temperatures will remain above average.
Aloft an upper ridge from northeast Mexico to north of the Upper Great Lakes eases eastward as a long wave trough from Ontario to the FL east coast pivots out over the Atlantic. High pressure moving across the Gulf will allow winds to diminish as they veer over night. The high moves to off the east U. Low pressure could move into the Gulf from the Caribbean.
/issued 401 PM EDT Wed Oct 25 2017/ High pressure is building in behind the first cold front of the season to clear South Florida.
920 PM EDT Wed Oct 25 2017 High pressure will build from the West Tonight.
725 PM EDT Wed Oct 25 2017 A strong upper level trough will move across the region with clouds and some showers, especially west of the Blue Ridge, through tonight. High pressure will then build over the southeastern part of the country with fair weather and moderating temperatures expected through the end of the workweek.
/Issued 254 PM EDT Wed Oct 25 2017/ As the upper level trough shifts into the Mid-Atlantic coast, dry northwest flow aloft will set up tonight with nearly zonal flow tomorrow and tomorrow night.
1124 PM CDT Wed Oct 25 2017 A strong cold front will cross the area late tonight, with very windy conditions behind the front Thursday. Readings by late afternoon will be near freezing by late afternoon across far northwest Nebraska, and falling into and through the 30s elsewhere.
Winds will briefly weaken before a cold front with gusty northerly winds pushes into the area during the evening hours.
High pressure will continue to be in place over the region. This high will continue to shift eastward over the next day or so. Expect a little bit warmer night tonight. As the high moves east, winds will become more southerly on Thursday.
/issued Issued by National Weather Service LITTLE ROCK AR/ Upper trough making its way east of the area through the Ohio River Valley area toward the Northeast.
842 PM MDT Wed Oct 25 2017 The initial cold front shifting winds to northwesterly has passed through all but far southern portions of SW MT with a secondary surge of northerly winds and colder airmass presently continuing to push south into central MT this evening. Winds have largely shifted to the north across north-central MT and will remain gusty through late this evening, but gusts in excess of 50kts are no longer likely and the High Wind Warning has been cancelled. Hoenisch A fast moving cold front will move southward through the region Wednesday night, producing some scattered rain and snow showers across Central Montana.
No changes have been made to the forecast as an upper level ridge will continue to dominate the weather for at least the next few days.
High pressure will remain over the western United States this week.
Gusty southwest winds will increase during the day Thursday across SE OK/NW AR ahead of a cold front, which will move into NW OK by late afternoon. Cold front expected to be near I-44 around 00z with strong/gusty north winds behind the front into Thursday evening. Light south-southwesterly winds are helping keep temperatures from falling too rapidly this evening, and will allow low temperatures to remain 10 to 15 degrees warmer than this mornings chilly temperatures.
South to southeast winds will increase quickly Thursday morning as low pressure approaches from the west.
A strong cold front will move across all TAF sites during the day Thursday.
Weak surface ridging will build into the area tonight, ahead of the main front that will move into the area tomorrow. This feature will dive southeast into the northern Plains and help to propel its associated cold front through the area through the day Thursday.
A deep mid/upper-level trough continues to move across the eastern half of the country this afternoon, with its axis poised to cross the area this evening. At the surface, a cold front is moving south of the state with high pressure building into the southeast in its wake. The trough axis will swing through the area tonight and continue pulling away to the northeast through Thursday, with a near-zonal flow becoming established. High pressure and dry conditions will be in place across the area at the start of the period.
Otherwise, a strong cold front will arrive at the very end of this forecast period, if not slightly beyond 27/00Z.
954 PM EDT Wed Oct 25 2017 Radar shows very light and spotty precip across our northern sections as an upper trough and vort max with cold temps aloft swings across our area. With the 00Z RNK sounding showing a freezing level around 4400 ft, some of the mountain peaks of NE TN are probably seeing some snowfall, but probably little to no accumulation based on its short duration and warm ground.
617 PM MDT Wed Oct 25 2017 Currently, a ridge aloft is pulling in warmer and drier air into the region.
An upper level trough can be seen in WV and IR satellite imagery this evening over the eastern CONUS. This trough will de-amplify and lift northeastward tonight. Temperatures will drop into the low 40s across much of the area by the early morning hours, so remember to grab a sweater or jacket tomorrow morning!.
1134 AM EDT Sun Oct 1 2017 High pressure will build across the region through mid week. High pressure will build toward the region this afternoon with sunny skies. Tonight wl once again see a return of patchy frost, tho mins will be warmer than this mrng due to cld cvr associated with weak front dropping out of Quebec. High pressure will continue to dominate the region's weather early this week.
High pressure building into Florida will produce several days of Axis of surface trof has shifted NW of the area with a secondary trof along Treasure Coast at mid morning. Flow across the area will become E-ENE and strengthen into tonight as strong high pressure builds down the eastern seaboard. onset of deteriorating wind, sea and surf conditions expected through tonight as the local pressure gradient tightens up with high pressure building to the north.
With a large high pressure ridge through the column across the region, we will have sunny skies and high temps in the mid to upper 70s in most spots.
Many of the traditional cold spots bottomed out below freezing, ending the growing season over a wide swath of the western part of the forecast area. Max/min temperatures will trend warmer/above early Oct. Abundant warmth and dry wx will continue through midweek given well above normal upper ridge/heights. There remains a good deal of model variability concerning the northern stream flow which should suppress the anomalous ridge and send a cold front through the area toward the end of the week. Timing of the late-week front and low pressure system tracking through the Great Lakes over the weekend remains uncertain - and therefore will utilize multi-model blend.
Southwest winds will increase areawide today as a lee side trough takes shape.
920 AM EDT Sun Oct 1 2017 High pressure will build across the region through mid week. High pressure will build toward the region today with sunny/mostly sunny skies. Tonight wl once again see a return of patchy frost, tho mins will be warmer than this mrng due to cld cvr associated with weak front dropping out of Quebec. High pressure will continue to dominate the region's weather early this week.
1028 AM EDT Sun Oct 1 2017 High pressure draped across New York State will slowly drift east and off the Atlantic coastline through midweek. High pressure will remain anchored directly overhead today with attendant strong subsidence and plentiful dry air supporting nearly full sunshine. with readings peaking in the lower to mid 60s in most areas. With overnight lows should be a category or so milder and range from the lower 40s across the lake plains to the mid 30s across interior portions of the Southern Tier and North Country. The dominant weather feature this week will be a strong surface and upper level ridge over the eastern CONUS, providing a continuation of fair and dry weather.
Subtle geopotential height rises had occurred through most levels during the last 24 hours, consistent with development of weak ridging between two troughs.
Low temperatures earlier this morning were interesting in that they ranged from the upper 30s at a couple KY Mesonet sites in the Bluegrass to the lower 50s in metro areas of Louisville/Lexington. The first of October is starting off seasonably cool with a surface analysis showing high pressure centered over western New York state. By dawn, expect most if not all locations to dip into the low to mid 40s, outside of the Louisville metro where upper 40s are likely. For today, the high pressure will continue moving east over the Northeast and a easterly to slight southeasterly wind will develop over Kentucky and southern Indiana. The air mass will moderate compared to yesterday, so plan on highs to reach the middle 70s with the typical warmer spots in the upper 70s.
The cold upper level trough encompassing the western states will maintain cool and unsettled conditions across northern and central Utah early this week. The broad upper trough extending through western Canada south into the Great Basin the begin the week.
918 AM EDT Sun Oct 1 2017 Canadian high pressure remains established over the region into the middle of the upcoming workweek. High pressure is going to keep our area mainly sunny today with low humidity. Tonight, as the flow turns more northeast to east, a few low clouds may shift into the area and/or form near the Blue Ridge, but overall airmass stays dry enough that scattered clouds are all that is forecast. Temps staying cool although a few degrees warmer than this morning. Lows in the lower to mid 40s in the west and into the upper 40s in the Piedmont and foothills.
804 AM EDT Sun Oct 1 2017 Trough axis is in place across the northern half of the area this morning with the upper low still off to the SW of the area. Winds and seas are expected to be on the increase over the next couple of days as the trough moves west and stronger high pressure builds into the region from the north. Scattered to numerous showers and a few thunderstorms in place across the waters today will diminish to isolated to scattered chances for the week as some drier air moves in with the ridge.
Scattered showers, mostly cloudy skies, and below-normal high temperatures are expected today as a complex low pressure system continues impacting the CWA.
926 AM PDT Sun Oct 1 2017 A trough of low pressure over the inter-mountain west will create a deep marine layer, cooling and gusty west winds in the mountains and deserts through Monday, with night and morning low clouds over the coast, valleys and lower coastal slopes.
704 AM EDT Sun Oct 1 2017 VFR conditions expected throughout the TAF period with high pressure remaining in control.
714 AM EDT Sun Oct 1 2017 Canadian high pressure remains established over the region into the middle of the upcoming workweek. High pressure is going to keep our area mainly sunny today with low humidity. Tonight, as the flow turns more northeast to east, a few low clouds may shift into the area and/or form near the Blue Ridge, but overall airmass stays dry enough that scattered clouds are all that is forecast. Temps staying cool although a few degrees warmer than this morning. Lows in the lower to mid 40s in the west and into the upper 40s in the Piedmont and foothills.
747 AM EDT Sun Oct 1 2017 High pressure is beginning to drift east/southeast of the region, and is allowing a stronger pressure gradient to arrive. Although guidance does continue to hold onto the elevated heights through tonight, before the upstream trough nudges east. Breezy south winds to 25 kts through Tue will be likely, as strong low pressure system slowly crosses south central Canada. Once the low moves lifts into eastern Canada the middle of the week, expect winds to diminish to 20 kts or less as pressure gradient weakens.
602 AM CDT Sun Oct 1 2017 With the upper ridge now to our east and an upper trough deepening over the west, flow from the low to mid levels has become southerly. But with a tightening pressure gradient from a strengthening lee side trough, surface winds will be on the increase.
1053 AM EDT Sun Oct 1 2017 A large area of high pressure over the eastern Great Lakes will move over the east coast and remain through midweek.
514 AM MDT Sun Oct 1 2017 Active weather continues as the storms from the overnight hours exit western Colorado and are replaced by instability from an incoming 100 kt jet and cold front. These bands of cloud cover will initiate showers and thunderstorms later this morning across northeastern Utah and northwestern Colorado and begin the transition of the cooler airmass reaching the region.
Showers, with snow levels near 5000 feet, continue mainly across the north associated with an upper trough. An upper disturbance within the trough was providing the West Central Mountains with the bulk of the showers, along with accumulating snow above 5000 feet where a few inches of additional snowfall are expected today. A trough continues to move southeast today, spreading cooler air across the area.
/issued 529 AM CDT Sun Oct 1 2017/ Easterly wave/inverted trof over the NE Gulf progged to continue WWD over the next couple of days. Expanding deep layer ridge over the Mid Atlantic will aid in shunting MSTR off to the west and allowing drier air to intrude from the east late TUE into WED, with rain chances rapidly decreasing as a result. Greater uncertainty creeps into the forecast for the late week period and beyond, but the general consensus of the global models and their respective ensembles is for upper ridging to build over TX, maintaining mostly dry and warm conditions. Checking on latest tidal guidance, still think we are ok to hold off on a Coastal Flood Advisory for the high tide cycle late tonight into early Monday, but of course the day crew will evaluate this further.
1242 PM EDT Sun Oct 1 2017 High pressure centered over New York State will drift very slowly off the east coast by mid week.
An upper level trough will linger over the area today then sink south tonight. Dry north flow will develop on Monday and continue through the week with a ridge over the area. An exiting upper level trough will keep chance to slight chance POPs. While the trough does not exactly make a lot of headway east today and into Monday. allowing for the upper level ridge over the Pacific to exert a greater influence.
937 AM EDT Sun Oct 1 2017 High pressure builds across the region today. This high will remain over the region into mid week providing fair weather and gradually warming temperatures.
VFR this period as sse flow continues ahead of Plains low/trough. The pressure gradient will tighten up a bit between the high to our east and the low to our west.
1040 AM EDT Sun Oct 1 2017 Dry conditions are expected through the middle of the week as high pressure influences the weather across the Great Lakes and Ohio Valley.
704 AM EDT Sun Oct 1 2017 High pressure centered over New York State will drift very slowly off the east coast by mid week.
833 AM EDT Sun Oct 1 2017 High pressure draped across New York State will slowly drift east and off the Atlantic coastline through midweek. high pressure will remain anchored directly overhead today with attendant strong subsidence and plentiful dry air supporting nearly full sunshine. with readings peaking in the lower to mid 60s in most areas. With overnight lows should be a category or so milder and range from the lower 40s across the lake plains to the mid 30s across interior portions of the Southern Tier and North Country. The dominant weather feature this week will be a strong surface and upper level ridge over the eastern CONUS, providing a continuation of fair and dry weather.
1150 AM EDT Sun Oct 1 2017 High pressure builds across the region today. This high will remain over the region into mid week providing fair weather and gradually warming temperatures.
/issued 320 PM CDT Sat Jun 17 2017/ Surface analysis places a cold front from the Great Lakes Region back through the Upper Midwest and into the Central Plains. Meanwhile, relatively rain free conditions are occurring across the Mid-South today as upper level ridging has kept any convective activity at a minimum. However, short term models indicate a line of showers and thunderstorms will develop over northern Missouri along the cold front and gradually spread south across Missouri tonight, perhaps beginning to reach the northern one third of the Mid-South late tonight towards sunrise.
A closed upper low over northwest Ontario this afternoon will loosen its grip on the forecast area by Sunday as the main low center moves to southeast Ontario. Max temps will be cooler as well with plenty of clouds and showers around.
Cloud cover remains minimized by dry air and high pressure aloft. /issued 306 PM CDT Sat Jun 17 2017/ SHORT TERM (Tonight through Sunday Night): A 500 hPa ridge anchored over North Central and Northwest Mexico will support short term subsidence and stability, as well as hot weather, over deep South Texas and the RGV. High temperatures Sunday will range from the lower to mid 90s near the coast to triple digits across portions of the Mid and Upper Valley.
/Issued 700 PM EDT Sat Jun 17 2017/ Weak upper trough lingers over the northern Gulf area this afternoon.
A strong cold front across Kansas at 00Z will advance south across Oklahoma and north Texas overnight and into Sunday morning. As s/wv trough approaches Central and Southern Plains tonight along with strong frontal boundary, another MCS appears likely to affect at least north-central and northeast portions of Oklahoma.
The main updates to the ongoing forecast were to increase cloud cover this evening and tonight as these high clouds continue to push towards the west/southwest as well as nudge up overnight lows a degree in response to the higher cloud cover. The low clouds will likely dissipate this evening leaving the cirrus canopy in place tonight. /ISSUED 341 PM CDT Sat Jun 17 2017/ Temps have warmed into the low to mid 90s inland this afternoon, and expect more of the same tomorrow, with a warm and humid airmass and upper level ridging in place.
1045 PM CDT Sat Jun 17 2017 At 3 PM, there are 3 cold fronts across Mid and Upper Mississippi River Valleys. The second cold front extends from near Green Bay to Cedar Rapids Iowa. The final cold front extends from the western tip of Lake Superior to Sioux Falls South Dakota. It is behind this cold front where temperatures fall into the 60s and 70s.