Aikyam-Lab/Synoptic-Bench huggingface dataset:
1052 AM CDT Tue Oct 18 2016 A cold front extends from near Joplin south and west across Eastern and South Central Oklahoma. Cold front was entering northeast OK and will stall across the region today. /Issued 345 AM CDT Tue Oct 18 2016/ Cold front was located near a line from KEMP-KPNC-KHBR per 08z sfc obs, with weakening pressure rises to the north over the past few hours. Overall progress of frontal boundary should remain limited over the next 48 hours, the net result today being high temps several degrees cooler across much of northeast OK and northwest AR, while areas to the south will once again see much above normal temperatures.
938 AM EDT Tue Oct 18 2016 A cold front slowly moves into the area tonight and Wednesday before retreating.
Warmer today with mostly clear skies. A dry cold front will move through late tonight into early Tuesday, bringing 5 to 10 degrees of cooling tomorrow. Sunny and significantly warmer today as an upper ridge builds northward through the Great Basin. Upper low just off the WA coast will move onshore this evening then due east along the US/Canada border Tuesday. The low's surface cold front will move east across Oregon overnight and Idaho Tuesday morning.
1029 AM EDT MON JUN 20 2016 High pressure has moved south to a position over eastern North Carolina. A cold front will cross the region Tuesday.
100 PM EDT MON JUN 20 2016 Aviation A cold front will pass through the Great Lakes Region today, bringing a period of clouds and a few showers or thunderstorms. Cooler and drier air will arrive behind the front, leading to a sunny and pleasant day on Tuesday.
Overall forecast for today remains mostly dry and warm but a fast moving cold front is still expected to impact the Hi-Line region on Tuesday. as an upper level ridge of high pressure builds over the area.
Temperatures will be a bit cooler than what has been felt in the previous week, and it should be noticeably less humid as well. High pressure north of the waters is producing breezy east winds and Small Craft Exercise Caution conditions this morning. High pressure will sink south into the area on Tuesday, with weakening winds through the rest of the week.
730 AM EDT MON JUN 20 2016 Low pressure off the Southeast US coast will move north Monday remaining well offshore. High pressure will remain over the lcoal through today. A cold front will drop south across the Mid Atlantic states late Tuesday.
We will get a reprieve from the active weather pattern early this week as cooler and drier air has filtered into the region behind yesterday's cold frontal passage. With high pressure spreading in from the west, lots of sunshine is anticipated today with cooler highs in the 70s. Mostly clear conditions will persist tonight with a few of the cooler locations possibly dropping into the upper 40s (low to mid 50s elsewhere).
640 AM CDT MON JUN 20 2016 Showers/storms continue to fire along a cold front running from northwest WI southwest into western IA. Important as the GFS/NAM/EC all want to lift this front back to the north as a warm front late Tue night into Wed. With the low level thermodynamics north of that and a good moisture feed into and across the front, that would place at least the southern 1/2 of the forecast area under high/likely shower/storm chances. Will continue to keep the higher chances across the south.
618 AM CDT MON JUN 20 2016 Surface cold front continues to sweep southward this morning, with little in the way of convection along it. Today: The frontal boundary will continue to settle southward, eventually ending up in the lower Missouri River valley by the afternoon. High pressure will slide southward into the Tri-State area today, leading to a cooler and very pleasant daytime hours.
1214 PM EDT MON JUN 20 2016 Shower and thunderstorm chances will increase today and tonight with the approach and passage of a cold front. The cold front is progged for passage tonight.
/Issued 407 AM CDT MON JUN 20 2016/ Hot weather remains on tap for the forecast for the next couple days as the upper level ridge meanders across the Southern Rockies.
High pressure will prevail into mid week before shifting south and giving way to a trough of low pressure through late week.
/Issued 330 AM EDT MON JUN 20 2016/ High pressure aloft and at the surface will dominate the weather through Monday. 500mb ridge will continue across the CWFA through Tuesday. High pressure at the surface will remain overhead today and tonight, but will begin shifting southward by late Tuesday as a weak frontal boundary approaches from the north.
A strong ridge of high pressure will result in record heat again today. Water vapor imagery and 20/12Z upper-air plots show a ridge parked over southern Colorado and northern Mexico. Meanwhile, an inverted trough is approaching from the east across parts of west Texas and northern Mexico. That said, dewpoint temperatures as of 15Z are 15 to 20 degs warmer/wetter than this time yesterday. Models continued to show an increase in moisture today and more so Tuesday as an inverted trough extending over southwest Texas and northern Mexico approaches from the east. The low levels will remain relatively dry, so high based thunderstorms with very little measurable rainfall can be anticipated mainly in the mountains this afternoon and evening.
403 AM PDT MON JUN 20 2016 Continued very hot and dry for inland areas today under strong high pressure aloft.
/issued 436 AM CDT MON JUN 20 2016/ Drier air aloft has begun to spill SSW across the lower MS Valley this morning. around the ern periphery of the upper ridge that remains centered over the Desert SW into the Srn Rockies. which appears to be along an elevated 700mb NW to SE theta-e ridge that is only depicted by the 06Z NAM.
/Issued 1023 AM CDT MON JUN 20 2016/ Current forecast looks on track per latest trends and area 12z soundings Low pops for the higher terrain of southeast Oklahoma and west central Arkansas will be left as is. Upper ridge to build back in across the area as the week progresses.
744 AM EDT MON JUN 20 2016 Aviation A cold front will pass through the Great Lakes Region today, bringing a period of clouds and a few showers or thunderstorms. Cooler and drier air will arrive behind the front, leading to a sunny and pleasant day on Tuesday.
1112 AM CDT MON JUN 20 2016 We have updated the forecast to increase rain chances slightly across the coastal plains into the Highway 77 corridor. /12Z TAFs/ Satellite fog product shows most of the low cigs departing northward into the Hill Country and Edwards Plateau. Upper level inverted trough is pushing west, away from southern Texas early this morning. However, only isolated to widely scattered coverage is expected as the Subtropical Ridge builds into Texas. The Subtropical Ridge strengthens over Texas on Tuesday. Expect similar temperatures for today as yesterday, then warmer on Tuesday as Ridge strengthens.
613 AM CDT MON JUN 20 2016 An isolated shower or two continues west river this AM, and as the trof presses east, wouldn't be surprised to see some of this pass across our CWA, though the result is little more than a sprinkle.
(Issued 336 AM CDT MON JUN 20 2016) A very large expansive upper level ridge has become established across the entire southern CONUS. The center of this ridge is focused over the desert southwest/southwestern plains, which will bring record heat to a large portion of the western United States. The CAP will remain in place today but as the ridge amplifies over the west and trough begins to dig into the Great Lakes on Tuesday we should see a weakening of this feature.
Upper-level ridging will result in minimal rain chances through the week and increasing temperatures. The current upper-level pattern features a strong subtropical ridge centered over the Four Corners region, a progressive west-northwest flow pattern across the northern US, and a cut-off upper low off of the North Carolina coast. The low-level easterly flow will result in dewpoints falling into the upper 50s in most areas today, and keep highs in the upper 80s to around 90. With light winds and a dry air mass, lows should fall into the low to mid 60s tonight. As the Atlantic upper low moves northward and a trough amplifies over the Northeast US, the upper-level flow over Central Alabama will become northwesterly.
Generally benign conditions can be expected throughout Northwest California this week as a stout summertime ridge of high pressure continues to build across the western and central United States.
1022 AM EDT MON JUN 20 2016 Update A cold front will pass through the Great Lakes Region today, bringing a period of clouds and a few showers or thunderstorms. Cooler and drier air will arrive behind the front, leading to a sunny and pleasant day on Tuesday.
1100 AM EDT MON JUN 20 2016 High pressure remains over the local through today. A cold front drops south across the Mid Atlantic states late Tuesday.
630 AM CDT MON JUN 20 2016 A flat upper level ridge of high pressure will continue to be the main forecast element throughout the coming forecast period.
/issued 355 AM CDT MON JUN 20 2016/ Midsummer-like pattern to prevail through this weekend, as an upper level height ridge prevails across the southern half of the contiguous U. This upper ridge will limit thunderstorms to isolated coverage and mainly to the peak heating portion of the day.
An area of high pressure centered over northeast Alabama and northern Georgia remains in control of weather across southern portions of the Tennessee Valley this morning. Further north, a pre-frontal trough axis ahead of a cold front pushing across the Great Lakes region extends southward into central Ohio and into Kentucky. KTW (Issued 655 AM CDT MON JUN 20 2016) For 12Z TAFs: VFR conditions are expected through the forecast period as high pressure settles in over the region.
659 AM CDT MON JUN 20 2016 The convection developing ahead of the approaching cold front is projected to dissipate as it reaches near Knox and Stark counties. The projected arrival of the front after Noon will allow for plenty of return flow of moisture ahead of the front, as well as destabilization of the boundary layer as sfc dewpoints rise into the lower 70s closer to the front and sfc temps climb into the low 90s. There should be enough sunshine ahead of the front to support highs in the low 90s.
844 AM EDT MON JUN 20 2016 Shower and thunderstorm chances will increase today and tonight with the approach and passage of a cold front. Shower and thunderstorm chances are expected to increase later in the day as the high pressure ridge completes erosion and a cold front approaches. The cold front is progged for passage tonight.
Only minor edit was to adjust temperatures a degree or two warmer through the late morning and early afternoon. Chattanooga Airport, TN 90 68 92 69 / 0 0 30 40 Knoxville McGhee Tyson Airport, TN 87 67 87 67 / 10 10 40 40 Oak Ridge, TN 89 67 87 67 / 10 10 40 40 Tri Cities Airport, TN 86 64 84 64 / 10 10 50 40.
BMickelson Previous short term discussion: An upper level high pressure ridge squarely across Montana will help maintain warm and dry conditions across the area today.
Scattered showers and storms will begin to approach KTRI late in the TAF cycle well ahead of a cold front.
427 AM PDT MON JUN 20 2016 A warming trend will continue through Tuesday as high pressure builds over the region. Strong high pressure dominates much of the lower 48 as it continues to build westward over southern California.
Strong high pressure will expand north and west from the southern Rockies through midweek. Heights continue to build as ridging becomes further established across the West. A Pacific trough will skirt the US/Canadian border Tuesday. The associated cold front will cross Utah Tuesday.
1030 AM EDT MON JUN 20 2016 Dry high pressure will remain over the region today.
1023 AM CDT MON JUN 20 2016 Current forecast looks on track per latest trends and area 12z soundings Low pops for the higher terrain of southeast Oklahoma and west central Arkansas will be left as is. Upper ridge to build back in across the area as the week progresses.
/12Z TAFs/ Satellite fog product shows most of the low cigs departing northward into the Hill Country and Edwards Plateau. Upper level inverted trough is pushing west, away from southern Texas early this morning. However, only isolated to widely scattered coverage is expected as the Subtropical Ridge builds into Texas. The Subtropical Ridge strengthens over Texas on Tuesday. Expect similar temperatures for today as yesterday, then warmer on Tuesday as Ridge strengthens.
154 AM EDT MON AUG 15 2016 Cold front oscillating across western Ohio, as high pressure lingers off East Coast.
Mid- level heights continue to rise over the area, and the surface cold front that trails the ridge will remain well to the west of the area. Fries Potent low pressure system advancing north into the Great Lakes will lift a weak warm front north of the area by Tuesday morning. By Tuesday evening, the low will push east sweeping a cold front west to east through the area. Weak high pressure will begin to build at the surface in the wake of the Tuesday night front. Despite this, diurnal shower and thunderstorm chances will continue through mid-week as the next upper-level trough advances through.
255 AM MDT MON AUG 15 2016 The forecast concern in the short term period is the possibility of isolated thunderstorms each evening clipping the western and northern sections of the forecast area as they lift off the Rockies during the afternoon and traverse the high plains during the evening. West northwest flow aloft brings a short wave trough across the Central High Plains region this evening. Even though mostly dry conditions are expected, isolated thunderstorms are expected to develop over the high terrain each afternoon and lift out across the northern and central high plains each evening. Termperatures will remain fairly consistent with highs in the lower 90s and lows in the upper 50s to lower 60s.
329 AM EDT MON AUG 15 2016 Drier mid level air will advect into the region as the mid level ridge over the Atlantic noses into our area behind a retrograding upper level low that brought severe storms to western parts of our area yesterday. Tuesday and Tuesday Night: Strong subtropical ridge centered just east of North Carolina will build into the region, and drier air will push into coastal southeast Georgia during the day. Highs will be in the low to mid 90s.
Latest vapor imagery and RAP analysis showed an upper trough extending from the Central to Southern Plains.
454 AM EDT MON AUG 15 2016 Pattern in short term period still controlled by SWly flow aloft with upper trough just west of MS valley states and upper high centered over Bermuda.
449 AM EDT MON AUG 15 2016 A ridge of high pressure over the western Atlantic will continue southeasterly flow through mid week. A broad ridge of high pressure over the western Atlantic will continue to bring deep east southeast flow and typical summer like weather to southern Florida today. Moisture in the lower and mid levels should increase by afternoon with the GFS forecast PWAT values pushing nearly 2.
212 AM CDT MON AUG 15 2016 Anemic northwest flow aloft will continue to support drier and cooler air today and tonight, though cloud cover that kept Sundays highs at bay will push east and allow for a little more warming but still remain cooler than normal for mid-August.
A trough near the I-30 corridor will continue to provide a focus for the development of showers. Showers and isolated thunderstorms will become more widespread during the daytime hours of Monday and should persist through the entire period as an upper trough moves east across Oklahoma and Kansas. The short term progs are in good agreement with this trough slowly drifting back N a bit overnight. These areas likely will remain the favored areas for additional convection development/heavy rainfall as a weak upper trough axis becomes stationary over the region by Monday night.
245 AM CDT MON AUG 15 2016 Center of upper low is now over the nrn TX panhandle while a stationary front extended from ern TX to the Great Lakes, not much change from last night position. Otherwise the Atlantic upper ridge will keep pcpn across the cwa today/tonight on the low side, but not zero. It will still be on the hot side today with highs mainly in the lower 90s and mrng lows on Tuesday in the lower 70s. Tuesday should be similar to today with low chc pops and highs temps arnd 90 as the upper ridge still keeps the main pcpn west of the TN valley.
445 AM EDT MON AUG 15 2016 Low pressure over southeast Missouri will move northeast across the midwest today into early Tuesday. A low level jet over 50 knots east of this low will aid in lift as a front moves north.
A recent ASCAT pass found winds still around 20 knots in the western florida straits south and west of the lower Keys. The showers and storms should begin to wane as the morning progresses, and drier air continues to filter into the boundary layer from the east along the periphery of the western Atlantic ridge.
309 AM EDT MON AUG 15 2016 Cold front oscillating across western Ohio, as high pressure lingers off East Coast.
416 AM EDT MON AUG 15 2016 High pressure will briefly reside over the region today bringing mainly dry conditions although isolated thunderstorms are possible over northeast Pennsylvania. A low pressure system will track northeast into the Ohio valley tonight then lift into southern Canada on Tuesday.
645 AM EDT MON AUG 15 2016 High pressure will briefly reside over the region today bringing mainly dry conditions although isolated thunderstorms are possible over northeast Pennsylvania. A low pressure system will track northeast into the Ohio valley tonight then lift into southern Canada on Tuesday.
Shower activity will favor the higher terrain. This is in response to a weak area of low pressure moving into southern Nevada by this afternoon.
The marine layer has deepened slightly, and onshore gradients have picked up a bit resulting in cooler temperatures early this morning through the Delta and into the Sacramento region. Enough moisture and instability may accompany this feature for a few late day thunderstorms over the higher elevations.
600 AM EDT MON AUG 15 2016 Cold front nearly stationary across Western Ohio, as high pressure lingers off East Coast. Surface cold front remains nearly stationary across western Ohio this morning as high pressure is still entrenched to our east.
312 AM CDT MON AUG 15 2016 Well-advertised low pressure center cross western Arkansas this morning will continue lifting to the northeast today as a large scale trough slides east from the Great Plains. Temps today should top out a few degrees cooler than yesterday thanks to a healthy cirrostratus canopy aloft.
activity ongoing as result of low pressure centered over SWRN sections of AR.
330 AM CDT MON AUG 15 2016 Upper low pressure system over eastern NM this morning will lift east/northeast across MO by Tuesday. It may be a good radiational cooling night on Tuesday morning so we favored the cooler guidance temps at sites where clearing was more likely.
658 AM EDT MON AUG 15 2016 Offshore high pressure/inland trough pattern will continue over the area through the middle of the week.
330 AM EDT MON AUG 15 2016 Bermuda high pressure will extend into the Carolinas and Virginia through Tuesday.
649 AM EDT MON AUG 15 2016 Low pressure over southeast Missouri will move northeast across the midwest today into early Tuesday. A low level jet over 50 knots east of this low will aid in lift as a front moves north.
The development of a bermuda ridge extension into the lower Mississippi Valley will maintain a steady-state onshore flow regime for the next several days but may become a bit messy in proxmity to the stationary front as well as some response to a well defined upper level TUTT low evidenced in water vapor imagery along the Florida panhandle. Bermuda ridge regime to remain in place with diminishing influences from stationary front by middle of the week, and increasing barotropic characteristics to the regional air mass. MEFFER The very slow movement of the departing low pressure area in western Louisiana and eastern Texas near Texarkana, combined with building high pressure to the east, will maintain a nearly status quo in the pattern through Tuesday.
321 AM PDT MON AUG 15 2016 High pressure aloft will give way to low pressure aloft midweek and likely persist into the weekend.
This trough is associated with Atlantic tropical wave that is moving around the western periphery of the Bermuda high. An area of persistent convection, mainly showers at this time, continues to propagate northward out of Georgia into the SE corner of the CWA ahead of this trough.
149 AM EDT MON AUG 15 2016 A cold front will pass south of our region tonight, bringing an end to the shower activity. The low level instability we required to generate vigorous convection simply did not develop today. Weak high pressure will lead to a generally dry Monday, though we cannot completely rule out a late day shower over the western FA.
351 AM CDT MON AUG 15 2016 Tranquil weather conditions are expected to continue for the next several days as high pressure remains in control over the Panhandles.
An area of low pressure will move into the Great Lakes area. An area of low pressure will move from Missouri into Michigan by Tuesday morning. Models thus show the highest rainfall amounts across the northwest forecast area.
441 AM CDT MON AUG 15 2016 (Today and Tonight) A cold front is currently stalled just south of West Central Texas. Highs this afternoon will range from the upper 80s to near 90 across the Big Country to the low to mid 80s across the rest of the area.
238 AM CDT MON AUG 15 2016 Remnants of our upper low has now been absorbed well to our north northeast into the Ohio Valley. This feature will become a little more diffuse as we move into the afternoon hours but strong PVA signal downstream of the longwave trough to our northwest along with slight heating and abundant moisture should result in additional convective development today.
Trof situated across west Texas and favorable jet positioning will aid in large scale lift across NW & N parts of SE Tx. Ridge tries to edge in closer from the E/SE going into the weekend but still looks like higher end chc pops might still be in order. Not really expecting too much change with this pattern the next couple of days as this upper low lingers over the region. However as the week goes on we should begin to see a weaker gradient as the low weakens/moves to the NE. Pattern to remain rather messy through the duration of the 12Z TAFS as the upper low lingers over the region.
353 AM MDT MON AUG 15 2016 Upper level analysis has weak cyclonic flow across the northern plains with a low over the Hudson Bay area and ridge across the southwest CONUS. At the surface, weak high pressure resides across the Dakotas with weak lee trof across central WY and northeast CO. Diurnally driven storms will diminish quickly by early evening as high pressure builds in from the north. Western upper ridge builds a little further to the east across the central and northern Rockies. Temperatures will be a few degrees warmer, in the upper 80s to lower 90s across the area.
Unsettled flow looks to continue into Tuesday, although heights build slightly over the region as a ridge axis shifts east over the Northern Rockies. Best shower/thunderstorm chances will be over the higher terrain.
341 AM EDT MON AUG 15 2016 Offshore high pressure/inland trough pattern will continue over the area through the middle of the week.
Warm conditions will persist inland and in the hills through midweek while cooler conditions continue near the coast. Temperatures will cool region-wide late in the week in response to a deepening upper level trough off of the California Coast. The 3 am temperature in Livermore was 11 degrees cooler than at the same time yesterday while the dewpoint there was 9 degrees higher. Somewhat cooler temperatures are forecast during the second half of the week and into the upcoming weekend as an upper low develops near the central California coast. The low is forecast to drift farther offshore by late in the week and perhaps draw some moisture westward across California.