Aikyam-Lab/Synoptic-Bench huggingface dataset:
212 AM CDT Sat Sep 16 2017 Somewhat complex setup for shower/storm chances today-tonight, with a lot of small scale features to contend with - aside from the front/trough combo for tonight.
636 AM EDT Sat Sep 16 2017 High pressure will provide our region with beautiful weather this weekend, including summerlike temperatures with highs averaging out within a few degrees of 80 each day.
The cold front will be forced south and east as a result, with the boundary lying from central KS down into NW OK this afternoon.
245 AM CDT Sat Sep 16 2017 Southwest upper level flow will continue through tonight as a rather vigorous mid level trough rotates through the northern Plains and into southern Canada by tonight. This will push a surface cold front towards eastern Kansas late today and into the forecast area tonight.
Weather in the short term will be dominated by light flow in the lower atmosphere. This flow is a result of deep ridging in place, that will keep us both warm and dry. We should see temperatures a little warmer each day for lows and highs.
Upper ridging will develop later this weekend over the NW Gulf of Mexico while a persistent trough hangs out to our west.
VFR conditions will continue through the next 24 hours with high pressure in control. Satellite imagery shows a low-level cumulus deck moving northward along the lower TX coast near Brownsville. Elsewhere clear skies prevail and will be mostly clear throughout the area overnight as high pressure aloft remains in control of the weather pattern. /issued 235 PM CDT Fri Sep 15 2017/ SHORT TERM (Tonight through Saturday night): 500mb ridge across northeast Mexico and southwest Texas tonight will continue to provide subsidence across the CWA. The upper level ridge will shift slowly eastward across the Gulf of Mexico Saturday into Sat night.
655 AM EDT Sat Sep 16 2017 High pressure builds into the region through the weekend through early next, however moist conditions will continue with fog expected each night and morning.
Synoptic Setup: Short term begins with a series of sub-synoptic ridges and troughs stretching over the northwest quarter of the CONUS and western half of Canada and off shore. The first trough begins over eastern Montana and Saskatchewan. The first ridge resides over the Pacific Northwest and British Columbia. The Second trough lies over the Gulf of Alaska. Today through this evening: Trough will be in place with the last large slug of moisture moving across the area and exiting around Noon. From this point onward the trough will begin to exit and the remaining rain showers should thin and lighten considerably with clearing from west to east.
However, model forecast soundings show that the capping inversion due to the high pressure aloft will be a bit tough to erode; so, any showers that do develop will be fairly shallow and likely toward and off of the coast.
Latest surface analysis indicates a fairly expansive area of high pressure over the eastern U.
High pressure across the area will remain in place through the weekend along with warm temperatures and light winds. High pressure over the region with dry conditions. Combinations of high pressure extending from the eastern Great Lakes southward to the Gulf of Mexico and Hurricane Jose over the western Atlantic will bring northerly winds to the region today. High pressure aloft will dominate the weather pattern across the Southeast U.
300 AM EDT Sat Sep 16 2017 Weak high pressure over the region will remain in place through the weekend. High temperatures in the low-mid 80s appear on target.
For Saturday, sfc cold front moves into MN, taking with it the vast majority of LLM and instability.
1239 AM CDT Sat Sep 16 2017 The cold front is currently sitting off to the northwest of the forecast area. The higher resolution guidance indicates the potential for thunderstorm development along the moisture gradient in south central Nebraska/north central Kansas around 6-7pm tonight. Saturday: The cold front is expected to bisect the forecast area during the day tomorrow before it fully pushes southeast of the forecast area during the afternoon hours. Low stratus is expected to be present behind the front for a majority of Nebraska and with the combination of cooler air and clouds, highs tomorrow will be cooler.
If you were not a fan of the cooler weather recently, then this weekend is looking great with temps mainly in the mid 80s! However, cannot rule out an isolated shower/storm either afternoon.
The cold front has made it through about half of the forecast area this morning. There will be lower clouds across the area through mid day and with the cold advection the temperatures will be quite a bit cooler.
Another area of showers will lift from South Dakota into the James River Valley, leaving portions of south central ND in a lull with the lowest pops. This could be complicated by fog/low clouds that might develop given the high amount of rainfall that occurred yesterday, and what is expected today.
118 AM EDT Sat Sep 16 2017 Weak high pressure will persist through Saturday.
Aloft, troughing rules out across the West, with ridging in the East. Highs will be in the lower 80s, with lows in the upper 50s to lower 60s. In general, models depict a mean mid-level ridge over the lower Ohio Valley through the period. This mean ridge breaks down temporarily as a result of Jose as it rides up the Atlantic coast.
Convection may become more widespread across northern Oklahoma overnight as a surface cold front moves into the area. Tropical moisture plume will continue to stream northward across the high plains into portions of western and northern Oklahoma over the weekend.
/issued 322 PM CDT Fri Sep 15 2017/ Favorably diffluent upper flow remained over the region this afternoon in the wake of yesterday's upper ridge, but earlier scattered showers and storms had since exited into western Oklahoma. Models agree that a belt of stronger upper tropospheric winds (about 60 knots at 300 mb) will overspread the region throughout the day ahead of broad upper troughing extending through the Desert SW. Opted to keep high temps cooler than today given less downslope flow component, but MOS has trended suspiciously warm which the midnight forecast crew will revisit.
As the upper trough swings through this afternoon, a dry punch will move into our western counties, and strong cold advection, combined with mixing of higher momentum air from aloft will produce wind gusts of 40 mph over Carbon and Albany Counties.
The short term will start out with a short wave upper ridge over the region today, with the upper ridge axis passing across the CWA during the day today. Temperatures will be a few degrees warmer today from Friday due to greater solar heating. Clouds will begin to increase in the afternoon today as a weak disturbance moves into the CWA behind the upper ridge. This trough will have very limited moisture and precipitation is not expected from it.
GOES-16 fog products show the fog mainly concentrated in the low-lying areas and river valleys. Overnight minimums look to bottom out in the upper 50s to the lower 60s. For today and tonight, ridging aloft and high pressure at the surface will keep our weather dry and quiet. By evening, temperatures will drop back into the 70s with overnight lows cooling into the lower to middle 60s.
Southeast winds will keep temperatures in the low 80s along the lake. Most models have convection along an approaching cold front dissipating before reaching north central IL tonight.
High pressure across the area will remain in over the region through the weekend along with warm temperatures and light winds. High pressure over the region with dry conditions. The combination of high pressure extending from the eastern Great Lakes southward through the Appalachians to the eastern Gulf of Mexico and Hurricane Jose over the western Atlantic will direct northerly winds to the region today. High pressure aloft will dominate the weather pattern across the Southeast U.
Expect a relatively cool start to the weekend as onshore westerly flow continues while a trough of low pressure persists over the Pacific Northwest.
Winds do become light tonight, mainly along and west of the James River - especially over central SD where the high center will reside. Did insert some patchy frost across central SD where winds are expected to be lightest under the high center.
344 AM EDT Sat Sep 16 2017 Quiet weather will persist through the first part of the weekend as a ridge of high pressure is slow to depart to the east.
Aloft, troughing rules out across the West, with ridging in the East. Highs will be in the lower 80s, with lows in the upper 50s to lower 60s.
Tropical moisture plume will continue to stream northward across the high plains into portions of western and northern Oklahoma over the weekend.
159 AM EDT Sat Sep 16 2017 High pressure will bring mainly fair weather and mild temperatures to our region through the weekend. Most of the area will be dry but once again, a weak upper level trough combined with surface heating will lead to some isolated to scattered afternoon showers and storms over northeast PA into the western Catskills. In general, rain-free conditions and fairly warm temperatures are expected this period over CNY/NEPA, as an upper ridge starts to build over the northeastern states.
A large trough of low pressure has settled over the western U. With this trough pattern, there may be a few showers developing periodically and a few days with gusty winds.
This afternoon and evening the moisture transport and shear will pick up as the cold front approaches.
The low pressure system that brought all the rain and snow to the Northern Rockies is slowing moving off to the northeast. For areas that have seen clearing skies overnight, like northwestern Montana and north-central Idaho, temperatures have dipped to below freezing and in some cases into the mid 20s.
Satellite this evening shows some lingering clouds over Wallowa county from departing upper level trough in Idaho.
142 AM EDT Sat Sep 16 2017 High pressure will provide our region with beautiful weather through the weekend.
145 AM EDT Sat Sep 16 2017 Weak high pressure over the region will remain in place through the weekend. A weak trough was over central NC. A lee trough within a very weak surface pattern east of the Appalachians will get overwhelmed by both high pressure over the central Appalachians and the cyclonic flow around Jose.
There will be very little change to the pattern over the next 24 hours as high pressure from the surface through 700 mb remains stationary over the WV/OH/western PA region. At the beginning of this period, we will be in a quiet pattern with ridges both at the surface and aloft. The closest upstream cold front will be well to the west, stretching NNW-SSE from Wisconsin to Texas.
a cool front will move out of the Rockies and into the Plain States while closer to home high pressure dominates the region but this will break down a bit in the coming days as moisture streams out of the gulf and into the region.
251 AM PDT Sat Sep 16 2017 A trough of low pressure will remain over the western states this weekend with below average high temperatures.
Have trimmed back patchy FG mention a bit this morning to include mainly Deep E TX/Ncntrl LA/Scntrl AR, as temps have been running a couple degrees warmer than 24 hrs ago which may help inhibit more extensive FG development. Otherwise, a sct cu field will develop by mid to late morning, with slightly warmer temps expected this afternoon than what was observed Friday given the slightly warmer temps this morning.
624 AM EDT Sat Sep 16 2017 Quiet weather will persist through the first part of the weekend as a ridge of high pressure is slow to depart to the east.
But lots of outflow boundaries are noticed from the convective elements along this trough boundary. High pressure will build just to the east of the coastal waters through the forecast period behind the easterly wave currently producing convection over the central Gulf of Mexico.
Ascent with passage of upper trof will bring another period of precipitation from west to east from this morning into the afternoon, then descent takes over as heights begin to rise from the west. Today will again be much cooler than normal with high temps in the upper 40s to lower 50s.
343 AM MDT Sat Sep 16 2017 Currently, GOES16 water vapor imagery shows mountain wave pattern across southern Colorado with leading edge of cooler air racing south through the plains. Today, Northern Rockies upper low and associated energy will move across Montana and Wyoming into the Dakotas through the day, with primary lift remaining well north of CWA. Temperatures will be quite a bit cooler across the plains, with highs in the 70s to near 80. It will be just a few degrees cooler across the high valleys and mountains, with 60s to lower 70s, and 40s to 50s, respectively.
The westerlies have kicked-in and the upper high has sunk well south of New Mexico, meaning a seasonal transition is underway.
335 AM EDT Sat Sep 16 2017 Weak high pressure over the region will remain in place through the weekend. High temperatures in the low-mid 80s appear on target.
High pressure has ridged quickly into the region. Given some area obs near freezing, will also throw in wording for a light glaze to develop on bridges/overpasses. High pressure will move up the Ohio River Valley today, keeping us with lighter winds but what should be a sunny day after any residual fog burns off in our east.
A large upper level low pressure system over the northeast Pacific will send a couple of weather systems across Western Washington bringing more rain today and Saturday.
Weak high pressure has built into the area and will persist today. The stratus will gradually lift and dissipate, but high clouds will increase this afternoon in advance of a moderately strong cold front. South to southwest winds will become breezy to windy at the coast, over ridges, in the southern Shasta Valley, and east of the Cascades.
Zonal upper flow will prevail ahead of an approaching Pacific Northwest trough today and Saturday.
Upper ridging from the W Gulf into the Plains states, with dry WNW flow aloft.
Highs should reach around 60 degrees most areas, to perhaps mid 60s in the higher elevated far southwest where more pronounced downslope is possible. However, a weak cold front will push south across the High Plains late in the afternoon, resulting in little more than a wind shift initially. The overnight hours will be noticeably cooler however, with lows by early Saturday morning falling back in to the 20s over west central sections of the state. Lower Plains areas like Stafford and Pratt may remains above freezing in the mid 30s. A continued dry and much warmer pattern though the weekend.
604 AM CST Fri Dec 1 2017 Warmer than normal temperatures will dominate this weekends weather, with no measurable rainfall expected. Afternoon highs should be a few degrees warmer than yesterday, especially in central/south-central Kansas given the southerly flow and better mixing potential. An upper trough will dig into the western states late this weekend, resulting in lee trough development.
High pressure will settle into the region for the weekend, providing dry conditions and near seasonal temperatures.
309 AM MST Fri Dec 1 2017 Today: In the wake of southerly flow /low-level warm advection/ early this morning, expect highs 7-10F warmer than previous days, in the lower/mid 60s, warmest in eastern CO. Saturday: Expect mostly clear skies, light/variable winds, and highs invof 60F with little overall change in the synoptic pattern aside from subtle height rises aloft in advance of an upper level trough progged to move ashore the PAC NW during the aft/eve. Saturday night: A lee trough is expected to develop downstream of the CO Front Range as the aforementioned upper wave progresses E/ESE from the PAC NW into the Intermountain West and flow aloft begins to back over the Rockies.
540 AM CST Fri Dec 1 2017 High pressure will dominate the weather across central Illinois today, providing mostly sunny and mild conditions. High temperatures will be a couple degrees cooler than yesterday. with afternoon readings topping out in the lower to middle 50s. As the high exits the region, southerly return flow on its back side will keep lows in the lower to middle 30s tonight.
At the surface, there will be a weak cold front that moves through mainly this afternoon and evening. There will be a weak high pressure system that will keep winds light and variable through the night.
Increased moisture and the return of southerly winds later today will result in warmer overnight temperatures as well as high temperatures on Saturday.
SHORT TERM (Now through Saturday): 500 mb ridging will prevail over the RGV throughout this upcoming weekend. Humidity values will remain pretty limited throughout the short term period with the 500 mb ridging prevailing. The exception will be at the lowest levels of the atms here in the RGv where some shallow moisture levels reside which may help us get some areas of fog this morning and tomorrow morning. The 500 mb ridging will maintain overall temps well above climo for early Dec. The MAV and MET temps throughout the short term show pretty good agreement with the ECMWF showing a bit more of a warmer bias versus the MAV/MET guidance. The high temps from yesterday 11/30 seem to reflect the warmer bias shown by the ECMWF numbers and lean towards the warmer side of guidance especially for maxes.
As of 3 am the effective cold front/wind shift to the north, was approaching the office here in Calera and stretches northward to just west of Gadsden and southward to just east of Demopolis.
949 AM EST Fri Dec 1 2017 High pressure and drier air will follow today as high pressure begins to build into the region from the Ohio River Valley.
North winds following the most recent frontal passage will help keep temperatures on the cooler side than what we had been seeing today. Overnight lows will range from the lower 40s in the Delta to the upper 40s in the Pine Belt.
There will be some high and mid level cloudiness today but overall fair conditions and highs back in the lower 60s for most locations.
Otherwise, VFR conditions are expected today under high pressure. With moisture expected to increase in the lower levels, expect another night with patchy fog for Friday night late in the TAF period. Plenty of sunshine and warming H85 temps should lead to another day in the lower 80s, with a few spots in the upper 70s. Again, temperatures will range in the lower 80s with a few locations in the upper 70s mainly along the immediate coast today and again Saturday. Overnight lows should drop into the lower 50s under mostly clear skies, with the exception in the upper 50s to lower 60s along the coast and the Rio Grande.
Plenty of sunshine and warming H85 temps should lead to another day in the lower 80s, with a few spots in the upper 70s. Again, temperatures will range in the lower 80s with a few locations in the upper 70s mainly along the immediate coast today and again Saturday. Overnight lows should drop into the lower 50s under mostly clear skies, with the exception in the upper 50s to lower 60s along the coast and the Rio Grande.
Strong surface ridging continues to build into the Western Great Lakes region early this morning. clouds will gradually diminish from SW to NE across our CWA as the ridge axis builds overhead and then pushes east of our CWA later in the day. with afternoon highs warming into the low to mid 40s. Small chances of rain/snow showers will develop across Eastern Upper Michigan and the Straits area overnight as this area of low pressure tracks eastward into Lake superior by 12Z Saturday. Low temps will cool into the low to mid 30s tonight. clouds are expected to decrease from southwest to northeast Saturday afternoon behind the departing trough.
623 AM EST Fri Dec 1 2017 VFR flying conditions will prevail through the period as high pressure moves by to the south. * None After a quiet start to the forecast with high pressure holding through the weekend, the weather pattern will feature a notable change with a deep trough dropping into the region for the foreseeable future. Weather through the weekend will be fairly quiet as an area of high pressure at the surface slides through the Ohio Valley and over New England. Flow will be light southerly today but will become more southwesterly on Saturday as the high shifts east.
Short range models indicating slightly drier conditions in the low levels overnight Friday, with some possibility of lower clouds after 12Z Saturday morning, beyond the current TAF package. Highs will reach the lower 70s today, with mainly southwesterly winds. With increasing low level moisture overnight, lows will be a little warmer than last couple of nights, generally in the lower 50s.
619 AM EST Fri Dec 1 2017 High pressure through the weekend.
Potent NE PAC upper trough will shift east and begin to affect the region Sat. WAA will increase as the strong upper trough drops into the PAC NW and deep layer ridging commences to its east.
Satellite imagery this mornign shows one area of high level clouds departing northeast Wisconsin early this morning as a ridge of high pressure drifts across the area. The short wave trough passes over the area tonight. Surface temperatures overall expected to be above freezing while the temperature profile supports mainly light rain showers but mixed with some snow at the onset and then during the departure before ending over far northeast Wisconsin late. Another ridge of high pressure will drift over the state on Saturday for a return to more sunshine.
630 AM EST Fri Dec 1 2017 A weak cold front moving into the area this morning will stall just south of the area tonight.
1047 AM EST Fri Dec 1 2017 The mean layer ridge centered to our west reaches north into the northern Plains. At the surface, high pressure dominates the eastern United States and supports moderate to fresh northeast to east breezes across the coastal waters of the Florida Keys.
Highs will be in the upper 70s to lower 80s inland, and the low/mid 70s near the coast.
The weekend will be much warmer than normal as we head into December.
Light precip associated with an upper trough will exit south central Idaho early this morning. Patchy valley fog developed in the wake of the departing trough which will persist through this morning, including the Treasure Valley. Precipitation will develop by Saturday afternoon as an upper trough approaches the Pacific Northwest.
Highs will reach the lower 70s today, with mainly southwesterly winds. With increasing low level moisture overnight, lows will be a little warmer than last couple of nights, generally in the lower 50s.
Forecasts look good here, though mountain valleys could be a bit cooler if the skies do clear well.
High pressure will progress eastward across the CWA and toward the eastern U.
558 AM EST Fri Dec 1 2017 A weak cold front moving into the area this morning will stall just south of the area tonight.
Flow will remain in a zonal to weakly ridged pattern. Saturday will see a trough move into the Pacific Northwest which will bring some increased cloud cover to the area. Saturday night as the trough begins to work into the Northern Rockies, precip chances will increase across the western zones as some better energy and moisture works into the area.
507 AM CST Fri Dec 1 2017 Mainly a temperature forecast over the next several days as the upper jet continues to build northward and upper-level high pressure dominates the eastern half of the country.
May see a few light showers associated with the departing trough over our far southeastern counties early this morning, but otherwise a dry forecast expected in the near term.
549 AM EST Fri Dec 1 2017 High pressure will result in dry conditions through the weekend with daytime high temperatures remaining a few degrees above normal.