Aikyam-Lab/Synoptic-Bench huggingface dataset:
Short wave trough will continue to move off to the east tonight with clearing skies in it's wake. /issued 337 PM CDT SUN OCT 2 2016/ Mid-afternoon sfc analysis shows high pressure centered nearly overhead. Water vapor imagery shows lows located over the Great Lakes and Pacific NW while ridging lies in place between them over the cntl CONUS. Deepening cyclone over the Pacific NW will also nudge the mid/upper-level ridge ewd. Main effects of all this appears to be warmer mins and maybe a little higher humidity tomorrow.
1004 PM CDT Sun Oct 2 2016 Upper ridging passing across Texas. creating mainly clear evening skies with surface ridging producing a near calm wind field. Weak upper level diffulence just upstream of a north central Gulf jet level trough has kept mainly scattered showers over our western waters.
Issued at 245 CDT Sun Oct 2 2016 Water vapor imagery and RAP H5 analysis showed an upper low departing the Great Lakes region to the NE, with a building ridge across much of the Central CONUS. Another upper low was coming ashore in the PAC NW. At the sfc, high pressure remained in control of the region, with light northerly winds across the TN Valley. Morning lows will be a few degrees warmer than this morning, bottoming out in the lower to middle 50s (as opposed to the middle/upper 40s to lower 50s).
932 PM EDT Sun Oct 2 2016 An upper low across the eastern Great Lakes will help spark a few showers this afternoon. The low will move into New England by Monday. High pressure will then build into the region, leading to dry conditions and a warming trend through the middle of the week. Expect overnight lows in the low to mid 50s. Upper low opens up, and moves across New England Monday. CWA is likely to start Monday with cloudy skies and patchy fog, but some sunshine (more than recent days) is expected during the afternoon as high pressure builds in, with high temperatures in the lower 70s.
756 PM EDT SUN OCT 2 2016 High pressure moves in tonight and stays through mid week. Therefore, will go on the lower side of MOS guidance for lows tonight in the northwestern counties were skies should clear, but will go with the warmer NAM MOS in areas where clouds should remain late in the night. High pressure then builds in and provides dry weather for Monday.
1233 AM EDT MON OCT 3 2016 Low pressure over Western Lake Ontario will drift off the Mid Atlantic coast and dissipate Monday.
1246 AM EDT Mon Oct 3 2016 Upper level low pressure will maintain shower chances this evening. High pressure will then build overhead through the middle of the week. Showers are quickly moving east of the area as the last spoke of moisture around the upper low is departing to the east.
High pressure will begin to build from the North Tonight, with onshore flow increasing the chance for coastal showers toward morning.
743 PM EDT SUN OCT 2 2016 Low pressure over Western Lake Ontario will drift off the Mid Atlantic coast and dissipate Monday.
The upper level low over the CA OR border Sun evening will move slowly southeast tonight with showers tapering off overnight.
/issued 342 PM CDT SUN OCT 2 2016/ Upper ridge axis over eastern NM was edging slowly eastward this afternoon and is forecast to exit east of the region by Monday afternoon ahead of a progressive longwave trough. Subsidence with this ridge is not much to speak of as confirmed by recent agitated cumulus and shower development near Tatum, NM. Otherwise, no changes necessary to the inherited min and max temps, but southerly winds were boosted to 15- 20 mph for Mon afternoon in advance of the pressure trough. Upper low should be situated over ERN MT by Monday evening with a subtle trough axis rotating about the parent system into NM.
904 PM PDT SUN OCT 2 2016 Low pressure moving inland through Monday will bring breezy and cooler weather, as well as patchy low clouds and fog.
Upper trof axis has now moved east into NV last bit of energy with the trof is along the CA/NV border. weaker showers are expected to spread into Norcal in the NW flow behind the trof as it moves Ewd across the Great Basin. Cooler cloud tops from the incoming system are eroding/warming as the system approaches the coast at this time.
High pressure across the western North Atlantic pressing against the broad windfield to the northwest of Hurricane Matthew has tightened the gradient across the Florida Keys and area coastal waters. The lower tropospheric flow this evening has become more cyclonic, inferred from apparent storm motion, observed from long duration loops of the KBYX radar. Above the easterlies, the wind field veers to southwesterly, painting the eastern edge of the mid- upper level low complex which remains entrenched across the Gulf of Mexico. Temperatures are in the lower 80s and dewpoints are in the upper 70s.
Widespread subsidence with this high along with ample dry air in the mid and upper levels kept the region totally cloud free and with very little wind this morning, allowing temperatures to fall into the upper 20s and low 30s with the coldest temperatures in areas where winds were able to go totally calm. Thus expect winds to remain light tonight especially in eastern KS and lows should fall again into the lower 30s. Expect it to be a bit warmer in northwest parts of the forecast area where winds are likely to be more persistent through the night, helping keep the boundary layer mixed. With this surface pattern in place, southerly winds will aid in afternoon high temperatures reaching into the low/mid 60s.
Lingering influence of high pressure will support near-freezing temperatures once again tonight, mainly along/southeast of the KS Turnpike. The big story will be a return to well above normal temperatures, as upper high pressure approaches from the west. Given how models continue to dig this system, wouldn't be surprised if the slower solutions verify, which would favor better shower/thunderstorm chances SE KS Thu night-Fri, as richer Gulf moisture advects north ahead of the strong cold front. Much cooler weather expected Fri-Sat in wake of the system. Upper ridging remains over the Plains with some weak lee troughing over nw KS/western Nebraska.
1123 AM CST Sat Nov 12 2016 The main focus of the short term forecast is the wind and the temperatures as a very dry airmass remains in place with a ridge moving overhead, keeping us precipitation free. Tonight, while wind speeds will decreases some, 5-10 MPH winds across the area will continue all night, and 10-15 MPH along the Buffalo Ridge. This and the warmer air mass in place will keep overnight lows much warmer, generally in the upper 30s to lower 40s.
This will bring cooler temperatures and increasing clouds starting over the mountains overnight then moving onto the plains by the afternoon. High however while in the lower to mid 60s will still be above average for this time of year with no precipitation in the forecast.
1120 AM CST Sat Nov 12 2016 The upper level ridge over the region today will slide to the east setting up a brief period of zonal flow through Sunday. A positive tilt short wave trough crossing southern Canada Sunday night will push some troughing across the region along with a weak secondary short wave trough. The cold front that will come through with the short wave trough should have little to no frontogenesis with it and only around 1 ubar/s of up glide on the 290K isentropic surface ahead of it Sunday evening. This system will be quickly followed by another trough that should again have a couple of short wave troughs in it.
Very mild temperatures will be seen southwest where an elevated mixed layer across western North Dakota will support highs substantially warmer than guidance. Tonight an approaching cold front, which will bring modified Pacific air, will move through the region dry. Sunday will see cooler temperatures than Saturday as cooler air flows into the region behind a cold front. Highs will still warm into the 60s across the south with cooler temperatures north.
Temperatures ahead of a cold front will bump into the mid 60s with few 70 degree readings not out of the question. A short wave moving across Canada will drag a cold front across Montana and the high plains by evening. This will also flatten the strong ridge over the region.
/issued 331 AM CST Sat Nov 12 2016/ This morning an upper ridge extends from Mexico northward over the Rockies as an upper trough sags down across the Southeast. A secondary low over the Panhandle will combine with the trough to displace the ridge westward.
1012 AM MST Sat Nov 12 2016 Water vapor shows upper ridge over the nrn Rockies/nrn plains with upper trof entering the pac nw. trof is advancing through ern MT/ern WY. Thermal ridge passes overhead with sfc trof working into the cwfa today, resulting in warm, dry, and breezy conditions. Pac nw trof will quickly push into the nrn Rockies tonight and the nrn plains on Sunday, forcing a weak cdfnt through the region. The result will be some gusty NW winds on Sunday and temps about 5-10F cooler.
High temperatures across the south and east will be cooler than average today.
205 PM EST Sat Nov 12 2016 High pressure with well below freezing temperatures tonight.
304 PM EST Sat Nov 12 2016 High pressure will continue across the region for the remainder of the weekend.
130 PM CST Sat Nov 12 2016 Another fine autumn day thanks to a large ridge of high pressure sprawled across the Plains/Upper Mississippi River region. Warm air advection tonight into Sunday ahead of an approaching cold front moving through the Northern Plains.
/issued 329 AM CST Sat Nov 12 2016/ A front located north of the forecast area this morning is forecast to get a push through the region today as a trough swings across the northeast U. Temperatures will only be slightly cooler.
With the upper level trough axis dropping through the area and potentially becoming a closed low over the region by this evening, expect E/NE winds to continue. Current water vapor imagery depicts a sharp upper trough axis with sheared vorticity dropping south across the Ohio River into the Ozark Plateau.
219 PM EST Sat Nov 12 2016 A ridge of high pressure building over the area will continue to bring a period of quiet weather into the mid-week. At that point, comes the next chance for showers as low pressure develops along the east coast.
Satellite imagery depicting sunny skies inland, while considerable cirrus continues to stream northeast over the western gulf waters and through south Texas associated with a weak north Texas upper low. Synoptic pattern in place yielding a weak northerly flow in the the low levels, and near zonal to slightly SE aloft.
123 PM EST Sat Nov 12 2016 A pressure ridge will extend through the Ohio River Valley tonight and direct cold air into the forecast area. A pressure trough will develop off the Georgia and South Carolina coast tonight and remain in the area through Sunday.
240 PM CST Sat Nov 12 2016 Ridge axis stretching from southwest Kansas through northern Missouri into northern Illinois will drift south through the area tonight. The ridge axis will be down over the eastern Ozarks by 12Z Sunday morning and with light wind, a crystal clear sky, and cool dry air in place, we should have excellent radiational cooling conditions. Remainder of the area will be in the low to mid 30s as the wind should be turning to the south during the pre-dawn hours. may need to go even warmer if warm advection turns out to be stronger.
1239 PM EST Sat Nov 12 2016 A large area of high pressure will build slowly south across the central Mississippi Valley region into the Ohio Valley by tonight.
Weak high pressure will bring a few rain free days to the region.
240 PM CST Sat Nov 12 2016 1034 mb Canadian high pressure over central IL will drift southeast into the mid MS and Ohio river valleys by Sunday.
258 PM CST Sat Nov 12 2016 A trough of low pressure will approach from the northwest later tonight which will shift the strong southerly gradient to the south of the area. The more westerly component to the wind on Sunday will lead to better mixing and warmer temperatures at the surface. Highs will range from the lower 60s in northwest Iowa to the lower 70s in central SD.
with many locations now hovering int the lower to middle 30s north of the Missouri River. overnight lows should be a few degrees warmer than this morning's. Weak upper ridge in place early Sunday will begin to break down as upper low tracks east from the Red River Valley. southerly flow will increase through the day as leeside troughing strengthens across the Front Range.
/issued 928 AM CST Sat Nov 12 2016/ The cold front has pushed south of the CWA and clouds were clearing out a little faster than expected. A gusty north wind will offset insolation and provide a slightly cooler than normal day. A very subtle cold front is pushing across the area this morning. While there will be no appreciable change in the low levels, the front will help reinforce the existing airmass. Behind the front, high pressure centered over the Ohio Valley will build across much of the eastern U.
317 PM CST Sat Nov 12 2016 Tonight an approaching cold front, which will bring modified Pacific air, will move through the region dry. Northwest winds will pick up to 15 to 30 mph on Sunday as cooler air continues to move into the region behind the cold front. Look for highs from the lower 50s northwest to mid 60s south central and southeast.
limiting radiational cooling over that area that will likely keep temps above freezing. Chattanooga Airport, TN 65 36 63 41 / 0 0 0 10 Knoxville McGhee Tyson Airport, TN 61 33 62 40 / 0 0 0 10 Oak Ridge, TN 61 33 64 41 / 0 0 0 0 Tri Cities Airport, TN 57 27 60 37 / 0 0 0 20 NC.
Water vapor imagery shows the mid to upper level low is slowly moving northeast into West Texas while the upper level jet stream was over northern Mexico into central Texas.
1229 PM EST Sat Nov 12 2016 A cold front will be south of the area today. The pressure ridge behind the front will extend through the Ohio River Valley. Weak low pressure will develop just off the Georgia and South Carolina coast Sunday.
As the high moves over the area tonight, temperatures will be coldest so far this season for most areas.
1050 AM CST Sat Nov 12 2016 Dry air continues to move into Arkansas with high pressure.
High temperatures will be about 5 degrees warmer than yesterday over the plains and about the same as yesterday over the mountains and high valleys. An upper disturbance will cross the northern Rockies on Sunday, pushing a weak dry cold front down across eastern Colorado by midday. Look for continued dry conditions, with max temps in the 50s and 60s for the high valleys, and mid 60s to around 70 F for the eastern plains.
153 PM MST Sat Nov 12 2016 Mean ridge of high pressure will remain in place over the region bringing mild and dry weather. Dry air in place with light winds and mostly clear skies will support strong radiational cooling Sunday night, with cooler readings forecast.
Advisories look likely for tonight for the freezing temperatures forecast across portions of northeast OK.
331 PM CST Sat Nov 12 2016 No weather issues to concern oneself in the short-term, aside from temperature forecast as dry conditions will be maintained under the influence of continental high pressure. Went pretty close to blended model guidance though some of the cooler locations may fall a few degrees below the consensus numbers tonight.
/issued 1005 AM EST Sat Nov 12 2016/ High pressure will continue over the Great Lakes Region today allowing for a light northeast steering flow along with dry weather over South Florida today. Zonal flow sets up across the Gulf of Mexico extending over the Florida peninsula with high pressure keeping control of the area returning light easterly winds across S Florida this weekend.
255 PM MST Sat Nov 12 2016 Latest upper air analysis shows the ridge now over the Central Plains with the closed low now over Northern Texas. Tonight lows will be similar to last night due to favorable radiational cooling conditions in place despite the air mass being warmer. Behind the trough northwest winds will be breezy but not as strong as today. Highs will be a few degrees warmer than today as the cooler air from the surface to the east moves further from the Tri-State Area.
/issued 613 AM CST Sat Nov 12 2016/ Wk cold front movg south of I-20. Upper- level trough across the Deep South to maintain partly cloudy skies across much of the region throughout the day with afternoon high temperatures forecast to climb into the mid to upper 60s.
1108 AM EST Sat Nov 12 2016 High pressure across the Midwest will build toward the Carolina coast through Sunday.
301 PM EST Sat Nov 12 2016 Canadian high pressure will build across the area through tonight before moving to our south for Sunday.
An upper trough axis moving over Tennessee this afternoon is forecast to cut off tonight and then move east into the southern Appalachian Mountains on Sunday. At the same time, surface ridging will maintain an ~easterly flow at the surface and low levels across central Alabama. There will be a north-south gradient in cloud coverage tonight and Sunday, with locations nearest the Alabama/Georiga state line holding both the highest coverage of clouds and the longest persistence of cloudiness during this time frame. The cloud gradient will influence temperatures tonight and Sunday as well, with warmer lows and cooler highs expected toward the Georiga state line, opposite toward the Mississippi state line. A progressive upper-level pattern is progged through the remainder of the week, with a dry longwave trough early-week followed by a mid- week ridge.
1139 AM EST Sat Nov 12 2016 High pressure and a dry airmass will settle into the region through the weekend with the dry weather continuing into the first part of the work week. As the high becomes more centered over the region during the mid afternoon, the weak CAA will give way to nearly calm winds and neutral advection, so haven't made much in the way of temperature adjustments other than slight tweaks near the Columbus metro area, but otherwise temperature forecast appears on track in the upper 40s to lower 50s Very dry conditions in especially the southeast forecast area with dewpoint hovering in the upper 20s resulting in RH values in the 30-40 percent range this afternoon. As the high shifts off to our southeast, we will get into a little bit of return flow through the day on Sunday.
Northerly winds will gradually increase across most areas by late morning or early afternoon as a weak cold front moves through.
316 PM EST Sat Nov 12 2016 A centroid of the upper level ridge will roll directly over southeastern Michigan late tonight and early Sunday. A shearing of the amplitude to the upper level blocking ridge will continue Sunday.
Dry lower levels that are being reinforced by a northeastern dry air mass filling in behind an early day weak cold frontal passage. Minimum temperatures falling into the lower to middle 50s will make for another prime night to keep the windows open. Water vapor satellite imagery shows a closed upper low still over El Paso this morning with another strong trough moving through the Mid-South. This trough axis should help push the front farther south today but slowly. By Sunday the trough now over the Mid-South will begin to close off over the S Appalachians and the closed low over the Big Bend will begin to open up and shear out over Texas.
Afternoon highs will remain above normal, though readings should be several degrees cooler than yesterday in response to weak cold air advection aloft.
1220 PM EST Sat Nov 12 2016 High pressure with well below freezing temperatures tonight.
A weather system moving across the Pacific Northwest today flattened the ridge of high pressure over the region.
A sprinkle is possible as far east and south as the Lower Treasure Valley and Owyhee mountains but any chance of measurable precip stays north of a Burns/Weiser/Stanley line. A low amplitude upper ridge builds in behind this system for Saturday night and Sunday. Temperatures today and Sunday are slightly cooler than the past couple of days but remain 10-15 degrees above normal.
210 PM CST Sat Nov 12 2016 Expansive high pressure remains in control across the eastern half of the US this afternoon, with clear skies, light winds, and seasonable temperatures across the region. With the center of the high slowly settling south tonight, expect temperatures to quickly fall into and through the 40s this evening with a near-perfect radiational cooling setup. After a cool start, temperatures should warm nicely into the low 60s on Sunday as winds become southerly.
347 PM EST Sat Nov 12 2016 High pressure will continue across the region for the remainder of the weekend.
/issued 346 AM CST Sat Nov 12 2016/ (Today and Tonight) As another cold front continues to move south across Texas, expect beautiful Fall weather for the next 24 hours, with temperatures cooler than seasonal normals.
1031 AM CST Sat Nov 12 2016 A sprawling high pressure system over the Ohio River Valley provided a continuation of seasonably cool and dry weather here in the Mid-State this morning. Strengthening sfc ridging influences along with little upper level moisture expected across the region will result in VFR/SKC conditions thru 13/12Z.
343 PM EST Sat Nov 12 2016 A large area of high pressure over the Ohio Valley will remain in place through Sunday.
132 PM EST Sat Nov 12 2016 High pressure with well below freezing temperatures tonight.
919 AM PST Sat Nov 12 2016 High pressure aloft will weaken slightly today.
100 PM CST Sat Nov 12 2016 For the 12/18Z TAFs, VFR conditions will prevail behind a cold front which has advanced down along the Gulf coast this afternoon.
This will push dewpoints down a little further into the middle 20s and a few areas into the lower 20s. This coupled with afternoon temps seeing a large diurnal swing into the lower 50s, will likely produce minimum humidity values into the upper 20 percent to lower 30 percent range. Sunday, even with a strengthening low level inversion as 850 mb temps climb to around 14C, mixing heights should still be high enough with sunny breezy conditions to push sfc temps into the upper 50s, near the higher end of guidance.
After another mild day Sunday, a strong warming trend will begin again when an upper ridge builds into the southern plains from the southwest U.
1151 AM EST Sat Nov 12 2016 A large area of high pressure will build slowly south across the central Mississippi Valley region into the Ohio Valley by tonight.
1248 PM EST Sat Nov 12 2016 Clear skies to persist through the taf period, as upper level ridge and dry airmass holds. As it does so, the wind will pick up from the southwest during the afternoon and scour out the cold air in the low levels. The low pressure system off the Pacific NW coast today will move inland and erode the long wave ridge over the central states tonight. The impressively dry nature of the air under the suppressed upper ridge over the plains states will support another day of full sun across the Great Lakes Sunday.
Otherwise, seasonably cool temperatures and few mid-level clouds associated with mid/upper low will dominate. JH The upper low will be pulling away from the area by Sunday.
244 PM EST Sat Nov 12 2016 Sprawling high pressure over the Midwest will build east tonight through Sunday, and move off the Southeast coast Sunday night.
A sprawling high pressure system over the Ohio River Valley provided a continuation of seasonably cool and dry weather here in the Mid-State this morning. Regarding our synoptic pattern, it's the same old tune, but different day: High pressure and dry.
342 PM CST Sat Nov 12 2016 (Tonight and Sunday) Mid clouds have been tough to clear from the south and southwest portions of West Central Texas this afternoon, keeping Ozona a little cooler than locations a little farther north and east.