Aikyam-Lab/Synoptic-Bench huggingface dataset:
625 PM CDT Fri Apr 7 2017 Broad upper level ridging building into the central U.
In the low levels of the atmosphere, an area of high pressure over the southeastern United States will build southeastward down the Florida peninsula overnight. In the mid to upper levels of the atmosphere, a trough of low pressure will pass eastward over south Florida tonight.
634 PM CDT Fri Apr 7 2017 231 pm CDT Finally a breather in the weather department with high pressure moving in tonight. Expect winds to finally slacken off as the ridge axis shifts in.
1147 PM EDT Fri Apr 7 2017 Aviation High pressure will move over the Great Lakes this weekend providing a sunny and increasingly warmer couple of days.
Skies will be generally clear tonight but a light southerly breeze will keep temperatures about 10 to 20 degrees warmer tonight.
/issued 340 PM CDT Fri Apr 7 2017/ High pressure at sfc and aloft with dry cloud free airmass.
802 PM EDT Fri Apr 7 2017 An upper level trough will gradually lose its grip on the area on Saturday.
1217 AM EDT Sat Apr 8 2017 Low pressure over New England will continue to move rapidly northeast away from the area this evening. This will allow a ridge of high pressure to build toward Ohio from the lower Mississippi Valley overnight.
642 PM CDT Fri Apr 7 2017 00Z TAFS High pressure centered directly overhead this evening will result in continued light and variable winds overnight. Winds will turn southerly by mid morning Saturday as the high shifts to the east. /issued 324 PM CDT Fri Apr 7 2017/ Just some thin high clouds passing over the area today with temperatures this afternoon in the low to middle 70s. This will cause the lower levels to moisten a bit along with a warming trend into the weekend.
Meanwhile, increasing westerly flow over the Rockies has lead to the development of lee troughing on the High Plains. /Issued 323 PM CDT Fri Apr 7 2017/ South winds have returned this afternoon in response to strengthening westerlies over the Rocky Mountains, resulting in warmer temperatures today, and a milder night expected for tonight.
954 PM MDT Fri Apr 7 2017 The cold front that brought showers and isolated t-storms to the area this afternoon has pushed east and as of 9pm stretches from Glasgow to Billings and on south to near Salt Lake City. A tighter pressure gradient has developed there thanks to a deepening area of low pressure over southern Alberta. Conditions will improve from west to east through this evening as a cold front moves away from the area. Showers and stronger winds will be slowest to improve over the higher elevations of southwest MT.
The higher terrain will remain obscured across the region due to mid level cloud cover into this evening.
Forecast soundings and MOS guidance support high temperatures tomorrow reaching into the low 80s across Southeast Texas.
Chattanooga Airport, TN 36 69 44 77 / 0 0 0 0 Knoxville McGhee Tyson Airport, TN 34 66 39 75 / 0 0 0 0 Oak Ridge, TN 34 67 41 76 / 0 0 0 0 Tri Cities Airport, TN 30 65 33 74 / 0 0 0 0 NC.
701 PM EDT Fri Apr 7 2017 Aviation High pressure will move over the Great Lakes this weekend providing a sunny and increasingly warmer couple of days.
919 PM EDT Fri Apr 7 2017 High pressure will build overhead through the weekend, bringing the return of dry and seasonable conditions. High pressure building through the column will continue the drying trend overnight. Upper level ridge will settle overhead through the start of the week with dry conditions expected.
/EC/ Through the day Saturday: High pressure is delivering the region plenty of sunshine and temperatures generally a little cooler than average this afternoon, but the weather around our forecast area in the springtime really doesn't get a whole lot better than this! The high pressure responsible for the sublime conditions will be on its way off to the east through tomorrow, but only very slowly, which will ensure the perfection of this afternoon does not ebb quickly.
A cold upper level trough over the eastern Pacific will advance east across the Great Basin this weekend. This trough will bring much colder and wet conditions during the weekend. A mean trough remains centered over the eastern Pacific this evening. With the cold front pushing well ahead of its upper-level support, it will lose strength and advance little more tonight. A stronger cold front associated with the mean trough shifting inland across the Great Basin is still on track to cross Utah late tomorrow afternoon.
AEH Previous Discussion: Synoptic Setup: Short term begins with a Ridge running from the High Plains of New Mexico through eastern Montana to western Saskatchewan. A large trough of equal size is set off the coast of northern California to the Gulf of Alaska. This afternoon through tonight: Ridge will exit the area this afternoon turning the flow aloft to a more southwest pattern. Saturday: A meso-ridge will move through the area over these 12 hours and free up a lot of partly cloudy skies and dry conditions to infest the area.
The cold front that brought showers and isolated t-storms to the area this afternoon has pushed east and as of 9pm stretches from Glasgow to Billings and on south to near Salt Lake City. A tighter pressure gradient has developed there thanks to a deepening area of low pressure over southern Alberta. Conditions will improve from west to east through this evening as a cold front moves away from the area. Showers and stronger winds will be slowest to improve over the higher elevations of southwest MT.
706 PM MDT Fri Apr 7 2017 We did lower wind speeds a bit tonight except in the wind prone area of Arlington where the high wind warning remains in effect. Southwest flow aloft strengthens as a weak cold front also passes west to east across our counties. Shower chances will continue west of a Douglas to Laramie line along the cold front and baroclinic band, otherwise dry.
912 PM MDT Fri Apr 7 2017 Ridge axis aloft will continue to shift east of Colorado through Saturday as the flow aloft becomes more west and southwest on Saturday. Incoming trof and approaching jet streak will bring a chance of showers to the mountains in the afternoon and even an isolated thunderstorm. The mdls try to develop some showers as well in the high country for Saturday aftn, but think most of this will be in the northwest corner primarily affecting zone 31.
The 'urban heat island' effect is expected to keep Tallahassee a few degrees warmer than surrounding areas, keeping lows in the mid-upper 40s in the city.
509 PM MDT Fri Apr 7 2017 Current surface analysis shows warm front from western ND through central SD, with warm air in place across the area. Upper level analysis shows broad ridge axis centered across the plains. A cooling trend will take place into the weekend as a cold front over ID and eastern NV moves quickly east across the Rockies this evening and across our area late tonight and Saturday morning. The warmest temps on Saturday will be to the south and east of the Black Hills on Saturday, with highs across the area ranging from around 60 across northeast WY and the higher Black Hills to around 80 across south central SD.
High pressure has been in control of our weather today with a dry and cool airmass centered over the region. Last night's low temps overachieved and with the ridge centered overhead tonight expectations are for the same to occur again. /TW/ Prior discussion below: Through the day Saturday: High pressure is delivering the region plenty of sunshine and temperatures generally a little cooler than average this afternoon, but the weather around our forecast area in the springtime really doesn't get a whole lot better than this! The high pressure responsible for the sublime conditions will be on its way off to the east through tomorrow, but only very slowly, which will ensure the perfection of this afternoon does not ebb quickly.
The atmosphere will destabilize again Saturday afternoon with the upper level trough over the region.
628 PM MDT Fri Apr 7 2017 Large amplitude trough and cold air mass moving onshore the Pacific NW today will tighten the gradient between the high pressure in place over the next 24 hours and will bring a 90 to 100 kt upper level jet into the region Saturday afternoon.
Current surface analysis shows warm front from western ND through central SD, with warm air in place across the area. Upper level analysis shows broad ridge axis centered across the plains. A cooling trend will take place into the weekend as a cold front over ID and eastern NV moves quickly east across the Rockies this evening and across our area late tonight and Saturday morning. The warmest temps on Saturday will be to the south and east of the Black Hills on Saturday, with highs across the area ranging from around 60 across northeast WY and the higher Black Hills to around 80 across south central SD.
High pressure will be present over the region in the morning, but will gradually shift to the east and south of the area by Saturday night. The beautiful weekend continues across the Tennessee Valley as high pressure both at the sfc and aloft continues to slide Ewrd, allowing for ample sunshine and temperatures climbing into the upper 70s (to perhaps lower 80s in a few spots). With much of the upper support displaced well NE of our area over New England, and another upper ridge building E into the area from the W, the front is expected to fizzle out as it slowly sags Swrd toward our area. Winds will continue to slack not only as the sun sets but as high pressure moves into the region.
736 PM EDT Fri Apr 7 2017 High pressure will bring dry and quiet weather through the weekend.
646 PM CDT Fri Apr 7 2017 High pressure will control the weather across central Illinois tonight, providing clear and chilly conditions. The ridge axis will be directly overhead this evening, then will shift into Indiana by 12z Sat. Am expecting the coldest lows in the lower 30s to be focused near the Indiana border, with readings in the middle to upper 30s further west across the remainder of the area. As the high moves further away and the pressure gradient tightens, gusty southerly winds will develop on Saturday.
The center of a broad high pressure system that brought seasonably cold air to the region will gradually settle into the area tonight. As a result, winds will decrease this evening as the high moves overhead and daytime mixing ceases. Further temp decreases into the lower to mid 30s will are likely for many locations in the area, but especially those most susceptible to efficient radiational cooling (i. (Saturday through Saturday night) Issued at 300 PM CDT Fri Apr 7 2017 High pressure will be present over the region in the morning, but will gradually shift to the east and south of the area by Saturday night.
While frost may not be quite as widespread due to the very low dewpoints, air temps will get close to freezing and the frost advisory for our eastern counties will be kept going as is. High pressure will control the weather across central Illinois tonight, providing clear and chilly conditions. The ridge axis will be directly overhead this evening, then will shift into Indiana by 12z Sat. Am expecting the coldest lows in the lower 30s to be focused near the Indiana border, with readings in the middle to upper 30s further west across the remainder of the area. As the high moves further away and the pressure gradient tightens, gusty southerly winds will develop on Saturday.
/ISSUED 349 PM CDT Fri Apr 7 2017/ As the high currently over SE TX moves off to the east, we should start to see a more southeasterly low-level flow develop tonight/ tomorrow. This onshore flow is expected to persist on through the weekend along with a slightly flattened upper ridge. This combination should make for warmer temperatures/slowly increasing humidities this weekend. All of this appears to be associated with a slow moving cold front from the NW which is progged to stall over SE TX/near the upper TX coast before moving back up north/washing out. Best dynamics should be well north of the area (near the main upper low) but the increased POPS (and clouds) may help in cooling temps a few degrees during this timeframe.
1151 PM EDT Fri Apr 7 2017 A dry and stable environment sustained under building high pressure will ensure quiet aviation conditions hold through the first half of the weekend. Skies to remain clear across the lowest 10 kft through the day. Thinking that recent rains will actually have an impact on temperatures and generally shaded a degree or two warmer on lows.
800 PM EDT Fri Apr 7 2017 Low pressure over New England will continue to move rapidly northeast away from the area this evening. This will allow a ridge of high pressure to build toward Ohio from the lower Mississippi Valley overnight.
Freezing level at 12,500 feet and -20C level at 21,800 feet. A deep upper trough is draped along the eastern coast of the United States. A gradual warming trending will begin this weekend as the upper trough shifts east and weak upper ridge begins moving in from the west.
720 PM EDT Fri Apr 7 2017 Deep upper trough will continue to drift to the Atlantic coast tonight. with a strong upper ridge moving into the MS valley during the short term. The northeast corner should see some lows in the lower 30s. Relative humidity values dip into the lower 20s in some areas during the afternoon.
1250 AM EDT Sat Apr 8 2017 High pressure will settle in the Ohio Valley overnight and move east Saturday night.
1133 AM MDT SUN SEP 4 2016 Water vapor shows deep upper trof over the pac nw/west coast with disturbed sw flow extending newd through the nrn plains. a robust wave (currently rounding the base of the trof) will eject through the cntrl rockies. Cooler air will continue to filter through the cwfa with sct shra/tsra expected.
The highest PoPs (50-60%)for this evening will be across the Florida zones from around Tallahassee eastward.
Surface wise, a broad western Atlantic ridge extends across the southern half of the Florida peninsula, resulting in mostly east winds of 10 to 15 knots.
Lingering frontal trough across the region will gradually shift southward and fade into early this week.
244 PM EDT SUN SEP 4 2016 High pressure was building south across the Carolinas and into Georgia this afternoon. High pressure will build into the region from the north overnight, bringing cooler and drier conditions. Upper level anticyclone over the lower Mississippi Valley will strengthen and expand across the southeast CONUS and will be oriented from NE to SW from the Ohio River Valley through the SE U.
Some CU has developed in eastern NM over the past couple of hours along a surface trof. This trof is not expected to move much as the upper level flow is mostly parallel to the trof. Any fog that develops should be gone by the late morning to early afternoon as winds take a more south-southwesterly direction and increase to near 20 mph as a lee trof deepens to our northwest.
300 PM CDT SUN SEP 4 2016 It was another great weather day for the Labor Day holiday weekend with temperatures in the low/mid 80s at most airport sites. Heat index values in the low/mid 90s will be more common Monday afternoon, especially over the western cwfa and in areas off the higher terrain of the MO Ozark plateau. The upper level ridge axis just off to our east and south will flatten out or deamplify by Wed-Thu. A stronger upper level system will finally push a cold front into or through the area Fri-early Sat.
118 PM EDT SUN SEP 4 2016 Fair weather expected to continue through this week, as dry high pressure dominates. Upper trough will shift southward and through the southeastern states later tonight, but due the dry conditions through the atmosphere, precip is not expected. May see a few more mid or upper level clouds tonight with the trough as it pushes through. The trough axis will be off the southeastern coast by morning.
526 PM EDT SUN SEP 4 2016 A blocking ridge aloft will keep TS Hermine offshore, though it will linger off the NJ coast through midweek.
248 PM EDT SUN SEP 4 2016 A blocking ridge aloft will keep TS Hermine offshore, though it will linger off the NJ coast through midweek.
(Issued 1010 AM CDT SUN SEP 4 2016) Upper level ridging continues to remain in control of weather across the Tennessee Valley this morning. Model soundings persist with a very strong cap around 700 mb courtesy of strong upper level ridging through the day. Likely will be a tad warmer today based forecast 850 mb temperatures and slightly less cloud development expected.
Interestingly, the strongest of the upper level ridge is a localized dome directly over the heart of southeastern Michigan, a feature that is the ridge component to a phased wave couplet. Model data suggests the centroid of the upper level ridge will only slowly leak eastward early this week. There will be enough of an influence of this upper level ridge influence and subsidence Monday to keep humidity out of southeastern Michigan for another day.
Isolated to scattered showers/thunderstorms ongoing over the coastal counties/parishes, with coverage the highest near the Acadiana terminals. This moisture rich airmass is forecast to surge north across the area trough this afternoon.
231 PM EDT SUN SEP 4 2016 A large ridge of high pressure, extending from the Canadian Maritimes into the northeastern states, will keep our weather dry over the next several days. Ridging both at the surface and aloft will dominate over the area through the period resulting in mainly clear skies with dry weather.
358 PM EDT SUN SEP 4 2016 A blocking ridge aloft will keep TS Hermine offshore, though it will linger off the NJ coast through midweek.
150 PM EDT SUN SEP 4 2016 A large ridge of high pressure, extending from the Canadian Maritimes into the northeastern states, will keep our weather dry over the next several days.
206 PM MDT SUN SEP 4 2016 A low pressure system will move from southwest Idaho through central Idaho into southwest Montana tonight. Quite a few showers and a few thunderstorms have developed this afternoon around the low. Expect showers to continue through the night with the best coverage in close proximity to the low as it tracks through central Idaho. On Monday, the low will lift into central Montana but there will still be a few showers around especially across the central Idaho mountains and into the upper Snake highlands. Temperatures remain rather cool under this low, and some high elevation mountain snow remains possible tonight into Monday.
Blocking mid/upper level ridge of high pressure will continue to bring a rainfree holiday weekend to the region, and will likely hold on all the way through the short term. Though temperatures will be a few degrees warmer today, the humidity should be held at bay. The models both deterministic and ensembles want to bring a significant long wave trough through the region. The long wave trough has a surface reflection of a cold front that is expected to arrive this weekend.
359 PM EDT SUN SEP 4 2016 Mid level ridging over the eastern Great Lakes will remain in control of northern Michigan's weather tonight through much of Labor Day. Expect mostly clear skies with lows in the lower to middle 50s (except for around 60 near the Lake Michigan shoreline).
210 PM MDT SUN SEP 4 2016 Mean western conus trough and associated impulses will continue to affect the region in the period. Convection chances will continue through the night as the main jet streak and upper trough lifts over the region. Cooler conds expected nw 2/3 with highs slightly below seasonal norms most areas, coolest over far nw areas.
1233 PM CDT SUN SEP 4 2016 Some high clouds slipping into the high pressure ridge are keeping the temperatures down a bit this morning in Iowa and northwestern IL. High pressure anchored over the Great Lakes will bring pleasant weather to central Illinois today. Light E/SE winds around the high will keep humidity values low, as afternoon high temperatures top out in the lower 80s. Another clear and cool night will be on tap for tonight, although with winds taking on more of a southerly component, low temperatures will be slightly warmer than in recent nights. with readings dropping into the lower 60s. Blocking pattern will remain in place across the central/eastern CONUS through mid-week, as remains of Hurricane Hermine meander off the Mid-Atlantic coast.
235 PM EDT Sun Sep 4 2016 High pressure will maintain dry weather and warm temperatures through midweek. No major changes were needed for the afternoon update of the near term forecast as high pressure remains entrenched on the western flank of post-tropical storm Hermine. Mid/upper ridging with neutralized, then warm temperature advection between Hermine and a Rocky Mountain trough will support further temperature moderation.
107 PM EDT SUN SEP 4 2016 Fair weather expected to continue through this week, as dry high pressure dominates. Upper trough will shift southward and through the southeastern states later tonight, but due the dry conditions through the atmosphere, precip is not expected. May see a few more mid or upper level clouds tonight with the trough as it pushes through. The trough axis will be off the southeastern coast by morning.
339 PM EDT SUN SEP 4 2016 Eastern Kentucky remains under the influence of high pressure. The upper level pattern shows that Post Tropical Storm Hermine will remain along and near the Mid Atlantic Coast, meanwhile Upper level ridging will be the story for the Ohio Valley. This will keep a higher amplitude trough setup across the Western Conus.
104 PM EDT SUN SEP 4 2016 Aviation High pressure will bring fair weather through Labor Day. Some showers and thunderstorms are expected by mid week as low pressure approaches the Great Lakes.
232 PM CDT SUN SEP 4 2016 Deep layer ridging remains firmly in place across much of the southeast US and will not really be budging much at all through the next several days. In fact, both GFS and ECMWF have the 500hPa ridge strengthening over the region through mid week to around 595-597dam.
315 PM EDT SUN SEP 4 2016 A ridge of high pressure will remain in place across the Ohio Valley through mid week as a tropical system remains anchored off of the east coast. Weak southerly flow will set up over western portions of the Ohio Valley, limiting overnight temperature falls to the lower 60s. This period will be characterized by a return to mid-summer temps and humidity - and this represents the high confidence area of the forecast.
635 PM EDT SUN SEP 4 2016 Post Tropical Cyclone Hermine will continue to lift slowly northeast along the East Coast through late week as high pressure persists over the Southeastern States. Will hang on to a slight chance PoP through the evening NE sections/Outer Banks then indicate gradual clearing as weak high pressure continues to build over the area. High pressure surface and aloft will continue to exert it's influence on the area with partly cloudy skies and warm temperatures. Highs will be in the lower 80s.
135 PM EDT SUN SEP 4 2016 An expansive area of high pressure will remain across New England and maintain the dry weather pattern through mid-week.
SHORT TERM (Tonight through Monday Night):Surge of moisture combined with coastal troughing has led to scattered showers with brief downpours along with isolated thunder this afternoon. Overnight min temps will range from the lower 80's at the coast to mid-upper 70's elsewhere.
350 PM CDT SUN SEP 4 2016 (Tonight and Monday) A narrow ridge of high pressure aloft will bring mostly dry weather to west central Texas the remainder of today, tonight and early on Monday. An upper level trough of low pressure southeast of this ridge will drift toward the northwest from the Texas gulf coast overnight tonight and into tomorrow and bring with it a surge of moist air from the Gulf of Mexico which is expected to reach south and southeast counties of west central Texas on Monday afternoon and early evening. High temperatures Monday will be more humid than average 89 to 92 degrees with Monday morning low temperatures in the low 70s.