Aikyam-Lab/Synoptic-Bench huggingface dataset:
302 PM CDT Sat Oct 22 2016 Low pressure over the western Dakotas at 19Z will track eastward overnight pulling a cold front through much of the region by Sunday morning. Cooler air will spread into the area on Sunday behind the front with highs expected to be about 5 to 10 degrees cooler than today, mainly across northern parts of the area.
Low pressure will then slide east southeast across the region on Sunday, bringing a cold front southward into the area during the afternoon.
Pressure gradient over land area will relax this evening as high pressure builds in from the west and thus expect wind gusts to diminish around sunset. Tonight, the CWA will be under dry northwest flow with high pressure building in at the surface. Expect lows mainly in the lower 40s with the mid to upper 40s along the coast.
Have gone ahead and expanded the frost advisory into far southwest North Carolina, in addition to the areas previously in the advisory (Far northeast Tennessee/Southwest Virginia and the higher terrain of the southern Appalachian Mountains). Another ridge builds into the region during the middle of the work week keeping the pleasant weather rolling along.
220 PM CDT Sat Oct 22 2016 High pressure over the area today will shift east tonight. So we should see highs a good 8-10 degrees warmer tomorrow.
Tonight: A weak ridge in place this evening will slowly slide off to the east of the area late tonight. Temperatures will be warmer than last night due to increasing cloud cover across the area from the north and northwest. Temperatures will be a bit cooler with highs topping out in the upper 40s to around 50 for most locations. VFR conditions will prevail at all TAF sites through late tonight into early Sunday morning as a brief high pressure ridge lingers. Low pressure will approach the area Sunday morning bringing the possibility of rain showers at each of the TAF sites along with MVFR ceilings toward the end of the TAF period.
1120 AM MDT Sat Oct 22 2016 Early morning WV imagery and RAP upper level analysis showing broad ridging across the souther plains and zonal flow across the northern plains along the northern apex of the ridge. At the surface lee trough is in place near the front range with southerly gradient in place over our CWA.
1225 PM CDT SAT OCT 22 2016 15z/10am surface analysis shows ridge axis extending from the Great Lakes to the western Gulf, with southerly return flow developing across central Illinois. As the ridge axis slips further to the southeast during the period, southerly return flow will cause temperatures to warm. This will push a cold front southeast across central IL Sunday evening and existing southeast IL overnight Sunday night. Lows Sunday night in the mid to upper 40s, with Galesburg reaching the lower 40s.
1213 PM CDT Sat Oct 22 2016 An upper level ridge will provide quiet aviation weather to the area for the rest of the weekend.
1249 PM CDT Sat Oct 22 2016 Massive subsidence over the central conus under upper ridge with very dry air as seen in IR imagery. Highs in the low 70s yesterday will give way to mid to upper 70s to around 80 today with clear skies. Upper level ridging will dominate the synoptic pattern the next several days across the central portions of the United States.
High pressure arrives tonight and lingers Sunday. Weak cold front Sunday night with gusty winds in the mountains. Most of the low stratus has broken up, but only to be replaced by a cumulus deck in the cold air advection that is in full swing. Models trying to spit out some QPF, but did not include any POPs as the low levels are very dry. Went with a slightly non-diurnal temp curve overnight for the higher elevations where 850mb temps start increasing after midnight. With high pressure sliding east, will get some warm air advection, and when combined with plenty of sunshine, temperatures will recover nicely from todays chill.
225 PM EDT SAT OCT 22 2016 High pressure will bring much cooler and drier air to the region through the weekend.
What is really unusual about this forecast is that all of this uneventful weather will occur despite a cold frontal passage. A few renegade readings in the upper 30s are not out of the question, but won't be low enough for frost, as the ridge should move eastward enough to send most dew points back above 40 by midnight.
Current Situation and Analysis -- The first true autumn cold front cleared the service area this morning, with air temperatures in most Keys island communities remaining near or just below 80F, with dewpoint temperatures dropping all day, currently approaching 60F most locations. Fresh north to northeast breezes have been blowing west of the Seven Mile Bridge, while winds have been much lighter to the east. Prognostic Overview -- We hoisted Small Craft Advisories earlier for the coastal waters west of the Seven Mile Bridge, based on observational trends. A large area of continental high pressure will govern the weather pattern for the next few days.
235 PM CDT Sat Oct 22 2016 Latest water vapor imagery shows the upper level ridge over much of the central CONUS building into the region, while an upper trough pushes off the Atlantic coast. With the high pressure in place, expect clear skies to continue overnight.
128 PM EDT Sat Oct 22 2016 Cool high pressure will prevail through Sunday.
Highs will be mainly in the lower 60s with a northwest wind 5-10 mph. As high pressure settles into the area, VFR flight rules with a light northerly wind will prevail throughout this TAF cycle. After 00Z, winds will become light and variable as high pressure shifts across Middle Tennessee, winds switching to the south at CKV/BNA but remaining northerly at CSV.
As high pressure begins to move east, this will allow for rising heights and also rising temperatures on Sunday with highs near 80 degrees. As the high shifts farther east, temperatures will continue to moderate, but only into the lower 80s through the first part of the week. Attention then turns to the northwest and a weakening cold front approaching the lower Mississippi River Valley.
205 PM CDT SAT OCT 22 2016 High pressure will slide off to the east over the next 24 hours, allowing a weak cold front poised across the Northern Plains to drop into central Illinois by late Sunday afternoon. A cold front will drop through the CWA Sunday night, but due to the lack of return moisture this weekend, will come through dry. This high pressure ridge will quickly slide east through the Great Lakes region and allow southerly winds to return to the area for Tue into Tue night. Overnight lows will also remain in the 40s, so expecting any frost or freezing through the period.
Upper trof continues to slide away from the region to the east, while ridging aloft currently over TX builds in from the west. Benign weather continues through the upcoming week as low to mid level ridging is progged to remain the dominant feature, though it will wax and wane a bit, especially with an upper trof forecast to push through WED into WED night.
247 PM CDT Sat Oct 22 2016 A ridge of high pressure continues to dominate the southern Plains keeping large scale subsidence and dry air in place.
347 PM EDT Sat Oct 22 2016 High pressure from the Ohio Valley to the southern Plains will move south tonight.
High pressure remains in control over the Midwest. Temps are several degrees warmer than last night for most areas across E Iowa/NW Illinois from effects of light southerly winds and scattered mid- level clouds.
205 PM EDT Sat Oct 22 2016 High pressure will build south of the area through the weekend.
Decent BL mixing suggested most locations may be a couple degrees too low and in some places 3+ degrees warmer.
as the upper ridge center over SE TX continues to shift SE into the Nrn Gulf overnight. /issued 258 PM CDT Sat Oct 22 2016/ Deep upper trough over eastern Pacific serving to keep much of country locked in wx pattern, including our area with stg upper ridge in place centered generally near the LA gulf coast.
233 PM CDT Sat Oct 22 2016 Upper trough is currently departing the the northeast CONUS with broad ridging over the Rockies/Plains. At the surface, lee troughing remains in place across eastern CO/western KS providing another day of above normal temps. This will push a weak cold front across the northern and central Plains but will do little to knock our temps down, with above normal highs expected for both Sun and Mon. There remains good model agreement that a weak impulse will lift out of the desert southwest and out into the high Plains by Tue afternoon. Upper ridging will quickly build-in over the Rockies/high Plains behind the departing wave.
1220 PM CDT Sat Oct 22 2016 Got a little warmer yesterday than what I was thinking and so with that in mind, I bumped up highs today a little bit. Models continue to show a weak trof/front to pass through the area overnight tonight but not expecting anything with the passage other than a little cooler air for Sunday.
What is really unusual about this forecast is that all of this uneventful weather will occur despite a cold frontal passage.
245 PM CDT Sat Oct 22 2016 Breezy and mild weather was occurring this afternoon, as North- Central Texas was under the influence of upper high pressure. At the surface, the area was sandwiched between broad high pressure over Lower Mississippi Valley and a lee trough over the Western High Plains.
241 PM EDT Sat Oct 22 2016 High pressure will build across the region over the weekend.
308 PM CDT Sat Oct 22 2016 It simply doesn't get much better than this for a mid-fall weekend across the Lower Missouri Vly. Low amplitude upper ridge still in place across the Nation's midsection this afternoon. Southerly flow on the backside of this feature has returned to the area with warm air advection in full effect this afternoon with temps hovering in the lower 70s. This feature is expected to continue rounding the upper ridge axis overnight before dropping southeast into the upper Miss Rvr Vly and eventually the western Great Lakes on Sunday. expect a weak cold front to track south through the fcst area on Sunday with winds shifting to the north during the afternoon hours.
145 PM MDT Sat Oct 22 2016 An upper ridge axis moved to the east, opening the area to increasing southwest flow aloft. Sunday and Sunday night the broad trough off the west coast will continue deepening and moving slowly east.
1210 PM CDT Sat Oct 22 2016 High pressure covers the region with pleasant fall weather. but the warmer locations will likely continue to cool through sunrise.
Data analysis at 18z had a weak pressure gradient over the area, between a ridge axis from Jame's Bay to western KY and low pressure moving across SD. This with mdt low level cold advection to steepen the lower level lapse rates and provide subsidence. Low level cold advection continues Sun night as Can high pressure quickly settles into the region under the NW flow aloft.
333 PM EDT SAT OCT 22 2016 Low level cyclonic flow associated with the deep low pressure system over New England is finally loosening its grip across Se Mi. A low amplitude mid level trough axis over the Montana/Canadian border this afternoon will move into upper Mi on Sunday, then advance into the eastern Great Lakes/upstate New York Sun night.
200 PM PDT Sat Oct 22 2016 Fair and slightly cooler weather will continue this afternoon as high pressure aloft weakens and onshore flow develops.
217 PM CDT Sat Oct 22 2016 1248 PM CDT Skies continue to clear from west to east this afternoon as high pressure shifts east. With high pressure departing, low level southwest flow will continue tonight along with warm air advection and support warmer lows tonight in the 40s. 12z NAM and GFS runs suggest that the cold front will hold off for most of the day across northeast Illinois and northwest Indiana. Another impressive thermal ridge ahead of the front coupled with gusty southwest winds will allow all areas to reach the upper 60s and many areas having a good shot at 70 (and higher south), especially from the metro area southward.
240 PM EDT Sat Oct 22 2016 High pressure will end showers this evening, followed by dry and seasonably cool conditions through Sunday. Lake enhanced showers in northwest flow will continue to shift north and east this evening while diminishing, as the flow turns more westerly with building high pressure. Developing southwest flow ahead of an approaching cold front Sunday afternoon will help warm temperatures into the 60s for the most part, with a bit cooler reading along the I-80 corridor.
1229 PM CDT Sat Oct 22 2016 Upper ridging aloft and southerly low level flow at the surface will support a sunny and warmer day across central and southeast Kansas.
127 PM EDT Sat Oct 22 2016 Deepening low pressure off the coast of Maine will track north through Maine and into eastern Canada today through Sunday.
402 PM EDT Sat Oct 22 2016 High pressure centered to the south will keep dry weather over the region tonight.
Mid/upper trough across the eastern third of the CONUS will slowly shift eastward as mid level high pressure builds across the southern CONUS.
Sharp upper level ridge axis will begin to shift eastward tonight and Friday as upper level low lifts slowly northeast into Arizona.
A deep layer, mean anticyclonic ridge persists across the Gulf of Mexico. The next reinforcing high pressure system has spilled southeast to near Lake Michigan.
A low pressure system in Arizona will bring a chance of showers and thunderstorms to portions of Mohave County through Friday. Trends from the latest satellite and radar loops indicate models are underdoing the westward extent of showers associated with the broad closed low over Arizona.
732 PM EDT Thu Nov 3 2016 Cooler and drier air will move in tonight, as high pressure gradually builds into the area from the upper midwest. Cold front continues to slowly drop south, and is bisecting the fa. High pressure will build in on Friday and will bring sunny and dry conditions through the period. High will be seasonal ranging from the mid 50s in the north to the lower 60s in nrn KY.
Do think the cloud cover may keep temps a few degrees warmer than previously forecast. Also, had to adjust dewpoints and winds, especially across the higher terrain to reflect current obs and trends. Deese With the front well to the south and high pressure continuing to build in from the north, dry and cooler air will settle into our area. High temperatures will be around normal(low 70s) while the lows will radiate out enough to see below normal temperatures (low to mid 40s) overnight. Temperatures will begin to moderate (mid 70s) by the end of the period as the high shifts off the east coast ahead of the next front. Cold front will move south across ATL this evening/overnight.
The incoming air is dry and cooler which is helping the favorable north wind direction dissipate post frontal clouds or at least maintain mostly VFR ceiling. The dry and cooler air will then maintain VFR clear conditions through the day while light wind becomes westerly as high pressure builds into the region. Light northerly wind will back toward the west during the afternoon as high pressure settles over the region. Thermal trough will be overhead friday keeping temperatures seasonable in the lower to mid 50s under mostly sunny skies.
1222 AM EDT Fri Nov 4 2016 High pressure will maintain dry weather and seasonable temperature for the weekend. As mid week approaches, an upper trough digging rapidly across the Plains is projected to shunt the weakening ridge eastward. An increase in precip chances will follow with the encroachment of that systems cold front. High pressure will keep dry anticyclonic flow across the region through the TAF period, with mainly mid deck crossing ports with a mid level disturbance overnight into Friday.
804 PM EDT Thu Nov 3 2016 Low pressure will move east through the Gulf of Maine tonight. High pressure will build in from the west Friday. High pressure will shift offshore Friday night.
707 PM CDT Thu Nov 3 2016 Temps today have risen well above forecast into the lower to middle 70s. With a nearly identical airmass in place tomorrow, feel that highs will probably be above guidance thus have raised temps again into the lower 70s for all areas.
A cold front will approach the region from the north, and move into southeast Georgia by daybreak on Friday. Light winds are expected overnight as a cold front approaches from the northwest.
755 PM EDT Thu Nov 3 2016 Cool high pressure will build into NY and PA overnight and Friday.
/Issued 336 PM CDT Thu Nov 3 2016/ The air mass over central Alabama continues to be very warm and dry, and temperatures this evening will be on the mild side due to weak warm air advection ahead of a cold front. The surface cold front was currently across northwest Tennessee. Rainfall is sparse along the front, with the higher coverage of rain back in Texas and Arkansas. The upper trof axis will shift quickly eastward into the Atlantic Ocean.
All terminals return to VFR under clearing skies by late morning as high pressure builds into the area.
729 PM EDT Thu Nov 3 2016 A large area of high pressure will build in from the Ohio River Valley over the next few days. Dry, breezy and cooler conditions are in store for Friday, followed by a slow moderation in temperatures over the upcoming weekend. However, a secondary sfc and upper trough dropping SE from the glakes will maintain variable cloudiness with a chance of a few rain showers across mainly the northern tier counties. GEFS mean 925MB temps between 2-4C should support max temps in the mid to upper 40s over the high terrain of the North and West. Low temps will be quite uniform in the low to mid 30s. Upper air pattern has a sharp ridge to the west of PA and a trough near the East Coast.
930 PM EDT Thu Nov 3 2016 A cold front will continue moving off the coast overnight.
The air mass over central Alabama continues to be very warm and dry, and temperatures this evening will be on the mild side due to weak warm air advection ahead of a cold front. The surface cold front was currently across northwest Tennessee. Rainfall is sparse along the front, with the higher coverage of rain back in Texas and Arkansas. The upper trof axis will shift quickly eastward into the Atlantic Ocean.
543 PM MDT Thu Nov 3 2016 Current satellite imagery shows the area of low pressure spinning over southern Arizona, not having made much progress throughout the day. Cloud cover will increase in coverage overnight and result in a mild night, quite a few degrees warmer for areas like Durango and Cortez, than last night.
18Z surface data has a frontal boundary from North Dakota into lower Michigan with high pressure over the central Plains. Quiet and dry conditions will be seen late this afternoon through midnight as high pressure builds into the area.
707 PM EDT Thu Nov 3 2016 A cold front and its associated showers will cross the region tonight.
Ridge of high pressure will continue to bring mainly clear skies with warm.
1106 PM CDT Thu Nov 3 2016 Temps today have risen well above forecast into the lower to middle 70s. With a nearly identical airmass in place tomorrow, feel that highs will probably be above guidance thus have raised temps again into the lower 70s for all areas.
Clouds were quickly clearing behind a cold front this evening, and the chance of any measurable rain has gone, along with any lightning threat. Cold front will be completely south of the area by late afternoon.
753 PM CDT Thu Nov 3 2016 High pressure and calm winds over much of the Northland has allowed temperatures to quickly drop this evening. The combination of clearing skies, surface ridging and calm winds will promote radiational cooling and fog development. A broad upper level ridge will build over the central US Friday, slowly pushing east into the Great Lakes region through the weekend. Have increased highs for Friday based on readings in the Dakotas today reaching well into the 60s, and running warmer than model guidance.
1000 PM EDT Thu Nov 3 2016 Cooler and drier air will move in tonight, as high pressure gradually builds into the area from the upper midwest. Cooler air will move into the area overnight with lows in the low to upper 40s. High pressure will build in on Friday and will bring sunny and dry conditions through the period. High will be seasonal ranging from the mid 50s in the north to the lower 60s in nrn KY.
An upper ridge will bring sunshine to Western Washington Friday.
955 PM EDT Thu Nov 3 2016 Low pressure will move east through the Gulf of Maine tonight. High pressure will build in from the west Friday. High pressure will shift offshore Friday night.
703 PM EDT Thu Nov 3 2016 A large area of high pressure will build in from the Ohio River Valley over the next few days. Dry, breezy and cooler conditions are in store for Friday, followed by a slow moderation in temperatures over the upcoming weekend. However, a secondary sfc and upper trough dropping SE from the glakes will maintain variable cloudiness with a chance of a few rain showers across mainly the northern tier counties. GEFS mean 925MB temps between 2-4C should support max temps in the mid to upper 40s over the high terrain of the North and West. Low temps will be quite uniform in the low to mid 30s. Upper air pattern has a sharp ridge to the west of PA and a trough near the East Coast.
1036 PM EDT Thu Nov 3 2016 High pressure builds in tonight through Friday night.
1026 PM EDT Thu Nov 3 2016 A large area of high pressure will build in from the Ohio River Valley over the next few days. Dry, breezy and cooler conditions are in store for Friday, followed by a slow moderation in temperatures over the upcoming weekend. However, a secondary sfc and upper trough dropping SE from the glakes will maintain variable cloudiness with a chance of a few rain showers across mainly the northern tier counties. GEFS mean 925MB temps between 2-4C should support max temps in the mid to upper 40s over the high terrain of the North and West. Low temps will be quite uniform in the low to mid 30s. Upper air pattern has a sharp ridge to the west of PA and a trough near the East Coast.
Deese With the front well to the south and high pressure continuing to build in from the north, dry and cooler air will settle into our area. High temperatures will be around normal(low 70s) while the lows will radiate out enough to see below normal temperatures (low to mid 40s) overnight. Temperatures will begin to moderate (mid 70s) by the end of the period as the high shifts off the east coast ahead of the next front. Cold front will move south across ATL this evening/overnight.
High pressure dominates the areas weather tonight with dry conditions.
Kept the rain chances due to the slow movement of a cold front across the area overnight and into Friday as a weak short wave of low pressure swings to the Southeast overhead. Even through the showers and thunderstorms had ended, the boundary will remain a focus along with the added lift from the passing upper trough. Cooler air behind the front to make its way across the region late tonight as high pressure builds across the region. Cold front to linger across the Northers Gulf Coast into Friday allowing clouds and rain chances to affect the area and parts of Deep East Texas. /issued 803 PM CDT Thu Nov 3 2016/ For the 04/00Z TAFs, showers continue to diminish this evening as a cold front continues to advance through the region overnight.
Westerly surface winds in the wake of this trough favor another mild day and trended forecast highs on the warmer edge of the forecast envelope given observed trends the past couple days. VFR through the 00Z forecast period with a persistent ridge in the upper atmosphere. This favors continued above normal temperatures and below normal precipitation under anomalous upper level ridging at least into mid November.
1235 AM EDT Fri Nov 4 2016 High pressure builds in tonight through Friday night.
934 PM CDT Thu Nov 3 2016 Clouds were quickly clearing behind a cold front this evening, and the chance of any measurable rain has gone, along with any lightning threat. Cold front will be completely south of the area by late afternoon.