Aikyam-Lab/Synoptic-Bench huggingface dataset:
This ahead of an approaching cold front that will sag into the Florida Panhandle by sunrise Fri morning. Mid/upper troughing along the eastern seaboard dives southeastward, thus pushing the surface frontal boundary southward through ECFL Fri night. Highs will reach the low 80s before the front begins to move closer towards the area later in the day. Increasing light rain chances late in the day Fri north of I-4 ahead of approaching cold front. Weak pressure gradient as high pressure settles southward across the area overnight. Cold front approaches the northern waters late in day on Fri/Fri evening.
608 PM CDT Thu Nov 3 2016 A cold front is pushing south into the NRN sections of the state early this evening. then by mid to late morning on Fri VFR conditions should be dominant as high pressure approaches the region.
1035 PM EDT Thu Nov 3 2016 Northwest flow aloft downstream of building ridge keeps moist and cool airmass flowing across Lk Superior into this evening. A few showers or light drizzle will continue this aftn, but as high pressure ridge moves in this evening and overnight, clouds should begin to clear out. Lower pwats and clearing may even result in temps cooler than that. Into Fri, if low clouds and fog develop overnight, the low sun angle and limiting mixing along with drying aloft and sct-bkn cirrus may lead to slow clearing of the low clouds. The sw winds at the sfc should allow temps to end up in the 50s, though whether it stays in the low 50s or reaches the upper 50s to near 60 degrees will completely depend on extent of low clouds into the aftn.
1148 PM EDT Thu Nov 3 2016 A cold front will move through the area overnight. Cooler weather will occur behind the front over the weekend. A cold front with little moisture will move through the forecast area overnight.
1 inch on the high end. Chattanooga Airport, TN 57 72 46 72 / 30 0 10 10 Knoxville McGhee Tyson Airport, TN 56 70 42 69 / 40 0 10 10 Oak Ridge, TN 55 70 44 70 / 50 0 10 10 Tri Cities Airport, TN 51 65 35 65 / 50 0 10 10.
Very skimpy precipitation was associated with a weak pre-frontal trough this evening over southern and eastern sections of the Mid-State. Meanwhile, another line of skimpy, isolated showers was occurring over southern Kentucky, just ahead of a cold front. Expect skies to be variably cloudy for the rest of the night, as the band of clouds over southern and eastern parts of the Mid- State thins for a few hours, only to be replaced by a second band of clouds, associated with the approaching cold front. Any partial clearing that has already occurred over northern sections will be steadily eclipsed by the band of "cold front clouds" moving south out of Kentucky over the next several hours. Will also keep the slight chance for showers running over southern and eastern areas throughout the night, ahead of the cold front.
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. /issued 232 PM CDT Thu Nov 3 2016/ Cold front currently extending from De Queen Arkansas to Longview Texas serving as the trigger for early afternoon convection across mainly southwest Arkansas and east Texas. 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 northern gulf coast on Friday maintaining clouds and a slight chance of showers and thunderstorms across Deep East Texas during the afternoon.
749 PM EDT Thu Nov 3 2016 High pressure builds in tonight through Friday night.
1125 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.
An approaching weak cold frontal boundary will add an element of uncertainty to the occurrence and extent of 09-14Z fog and Friday daytime showers /storms. Water vapor imagery shows upper level ridging over much of Texas with an upper level low over the Desert SW/Baja Mexico.
914 PM CDT Thu Nov 3 2016 A cold front is moving through the region bringing an end to the much above normal temperatures the Mid-South has been experiencing for more than a week (above 80F at KMEM since 10/24). Cooler air will work in later tonight with lows in the 50s by morning. A slow moving cold front strewn from New Jersey, down through the Ohio Valley, to just north of the Arkansas and Oklahoma border will continue to push southward through the lower Mississippi Valley this evening.
An upper level trough will continue to dig southeastward into the Mid-Atlantic region tonight, merging with an upper level jet streak to its south stretching from the lower Mississippi Valley through Georgia and South Carolina. At the surface, a cold front will gradually push southeastward under the jet streak and the base of the upper trough, reaching southern AL and GA by the early morning hours. Lows will be in the lower 60s inland, with mid-upper 60s expected near the coast.
701 PM EDT Thu Nov 3 2016 High pressure builds in tonight through Friday night.
916 PM EDT Thu Nov 3 2016 High pressure will build in through the weekend with dry weather expected. A crossing upper trough should continue to result in mainly mid level clouds this evening, though moisture depth is too shallow for precip. Remaining patchy stratocu Friday morning should clear as subsidence increases with building high pressure. The high, and NW flow aloft, should keep dry and seasonally cool weather across the region through the rest of 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.
703 PM EDT Thu Nov 3 2016 Surface and radar data indicate the second stage cold front moving through the Saginaw Valley at issuance time. Dry and cooler air will then maintain VFR clear conditions Friday with light wind becoming westerly as high pressure builds into the region. Borderline MVFR/VFR ceiling will arrive during the evening with slightly stronger north wind as the next cold front moves through the area. VFR bases below 5000 ft will become patchy toward sunrise as dry air with high pressure supports a clearing trend. Thermal trough will be overhead friday keeping temperatures seasonable in the lower to mid 50s under mostly sunny skies.
1143 PM EDT Thu Nov 3 2016 A cold front will continue moving off the coast overnight.
Cold front will be completely south of the area by late afternoon.
910 PM PDT Thu Nov 3 2016 A ridge of high pressure will bring mild and dry weather to the region through the end of the week.
736 PM EDT Thu Nov 3 2016 High pressure over the region will weaken today ahead of an approaching cold front. The cold front will move through the area late tonight. Cooler weather will occur behind the front over the weekend. A cold front is forecast to move through the area late tonight. All models agreement that moisture will remain limited with h85 westerly flow ahead of the cold front.
912 PM EDT Thu Nov 3 2016 A cold front will cross the area late this afternoon and evening.
744 PM EDT Thu Nov 3 2016 A cold front crosses and exits early tonight. High pressure brings a stretch of dry, cooler weather from Friday clear into the next work week. Cold front as of 18Z was entering southeast OH, having cleared KCMH and KDAY over the past hour. Expect some low stratus along and behind the front, and as the low level winds turn around to the northeast, thinking stratus will hang tough along and east of the I79/US 119 corridor overnight with just scattered clouds elsewhere. Temps will be noticeably cooler than recent days, with highs actually running a few degrees below normal for a change. High pressure will take control of the weather conditions through the period. A weak cold front will pass north of the area.
831 PM EDT Thu Nov 3 2016 High pressure will continue to weaken across the area tonight into early Friday as a cold front approaches the area. Stronger high pressure will then build into the area behind the front for the weekend. High pressure will continue to weaken across the waters overnight and early Friday ahead of a cold front. The front will move through Friday night, with strong high pressure building in behind it for the weekend.
/Issued 408 PM CDT SUN JUN 26 2016/ A broad area of high pressure covers the southern half of the conus with a small low pressure center over southwest Texas. This low pressure will continue bringing moisture into the Panhandles. Models vary each day in the eastward extent of the high pressure center, with the NAM being the most limited in extent.
Monday, a cold front will approach northern Alabama by late afternoon.
Upper low over TX drifting east and moist axis shifting eastward as well.
935 PM EDT SUN JUN 26 2016 High pressure will extend from the Northeast coast southwest through the Mid-Atlantic tonight, then retreat on Monday.
A frontal boundary will increase chances for showers and thunderstorms later tonight and Monday, with cooler temperatures expected by the middle of the week. Fries Showers and storms will wane quickly Monday night in the ridges as the initiating boundary and most of the low-level moisture shift southeastward.
722 PM EDT SUN JUN 26 2016 A cold front will dissipate south of our area into Monday.
GAH Previous short term discussion: Remnants of the departed trough/storm system extend back into Saskatchewan and Northeast Montana this evening. the boundary between the cooler air of Canada and the hot high pressure dome over the desert Southwest will remain to the south of Nemont.
An upper ridge will bring mostly sunny warm weather again on Monday.
Otherwise, high pressure is poised to remain over the waters through mid-week with light winds. This area of high pressure will shift southward by mid week, resulting in west to southwest winds over the waters.
High pressure continues to dominate the areas weather with dry conditions that will persist into the beginning of the work week.
(Issued 241 PM CDT SUN JUN 26 2016) Deep layer ridging over much of the region continues to dominate the overall synoptic pattern. A couple minor perturbations rotating around the eastern periphery of the ridge in the mid/upper level flow will help maintain some weak upper level support for scattered showers and thunderstorms through the beginning of the week. We'll finally see a break in the pattern as a trough digs through the Great Lakes Region and shifts a surface front across the eastern US. Behind the front, high pressure will reestablish by mid week with drier air advecting into the area. With the help of some cloud cover, temps are on track to peak in the low/mid 90s with apparent temps in the upper 90s to low 100s.
856 PM EDT SUN JUN 26 2016 High pressure across our area this evening will move eastward through the overnight. Low pressure will then track across Canada early this week.
Clouds and winds to keep temps up overnight in the low to mid 50s. A secondary cold front has dropped across eastcentral ND and northern MN through the early afternoon. with temperatures ranging from the middle 60s near the Lake of the Woods to the lower 70s near the South Dakota line.
Upper ridge over the Gulf Coast region with northerly flow aloft over our forecast area. Northeasterly winds are expected Monday behind a weakening backdoor cold front and weak trough of low pressure.
743 PM EDT SUN JUN 26 2016 High pressure ridging into the forecast area from the northeast will weaken Monday. Moisture will increase Monday night ahead of a cold front.
512 PM MDT SUN JUN 26 2016 Zonal flow has developed across the area behind the departing upper low now moving eastward north of the Great Lakes. Rockies high pressure ridge will remain southwest of the region, with the northern plains on the northern periphery and fast flow aloft. Mean ne pac upper trough will remain in place, ejecting weak disturbances into westerly flow. This will support periodic disturbances into the area as general easterly upslope flow remains in place in the low levels.
Surface warm front has pushed over into eastern Middle Tennessee at early afternoon with convection a little more concentrated along the Cumberland Plateau. Isolated to scattered convection working in from the west with upper ridge built up through the Lower Mississippi River Valley. Upper ridge buckles tonight and this will allow for mid and upper level trough to develop over eastern U. By 00z Monday evening front pretty much out of my cwa but scattered showers and isolated thunderstorms may linger north of front across the south half Monday night as upper trough appears to try and dig down into my area overnight Monday night.
1028 PM EDT SUN JUN 26 2016 A cold front will stall and dissipate south of the area into Monday.
Cloud cover should be on the increase later Monday, as colder air sags southward behind passing front and sharpening low to mid-level trof moves across the region. VFR conditions to persist but may be a bit more cumulus Monday afternoon as cold front sags across the region. Concerned a few gusts will reach 22-25 knots closer to the shore Monday afternoon due to expected low level mixing in the vicinity of the passing cold front. A reinforcing shot of cooler air will begin to move in from the north on Monday as a trough drops through the forecast area.
Therefore, have removed pops across the board for the rest of the overnight hours as weak upper level ridge continues to steer additional convection north of the region tonight.
625 PM CDT SUN JUN 26 2016 A cold front will back southwest into extreme northern Nebraska this evening then further west to the high plains this week to be the focus for thunderstorm development. The cold front moving through South Dakota's will move into far northern Nebraska this evening.
Models are showing the low clouds getting to near or just north and west of Roseburg late tonight/Monday morning before peeling back toward the coast by Monday afternoon. The ridge axis will shift eastward into Idaho Monday. Both NAM12 and GFS20 bring a weak short wave trough through SW Oregon Monday. the short wave trough will also being highs on Monday down a few degrees. A weak thermal trough setting up along the coast Monday night will lead to northeast offshore wind over SW Oregon and western Siskiyou County.
Chances for isolated showers and thunderstorms will continue overnight ahead of the approaching cold front. The current run of the HRRR has the fastest advancement of convection ahead of the cold front with more widespread activity moving into the northwest zones by 09Z-12Z or so. Biggest question is going to be the passage of a cold front tomorrow and its eventually effects on each terminal.
1025 PM EDT SUN JUN 26 2016 High pressure ridging into the forecast area from the northeast will weaken Monday. Moisture will increase Monday night ahead of a cold front.
731 PM EDT SUN JUN 26 2016 A cold front near chicago will move across the area tonight followed by another cold front monday night.
The low-level jet is expected to be very weak or nearly non- existent tonight. A secondary area could be in southwest OK and north TX as upper low cont to spin across west Texas. As we move forward through the work week, we see upper ridge shift back westward and northwest flow develop across the Southern Plains.
1044 PM EDT SUN JUN 26 2016 A weak cold front will push east across the area tonight and early Monday.
926 PM EDT Sun Jun 26 2016 High pressure will move off the coast tonight.
759 PM EDT SUN JUN 26 2016 A weak cold front will push east across the area tonight and early Monday.
1018 PM MDT SUN JUN 26 2016 Zonal flow has developed across the area behind the departing upper low now moving eastward north of the Great Lakes. Rockies high pressure ridge will remain southwest of the region, with the northern plains on the northern periphery and fast flow aloft. Mean ne pac upper trough will remain in place, ejecting weak disturbances into westerly flow. This will support periodic disturbances into the area as general easterly upslope flow remains in place in the low levels.
848 PM MDT SUN JUN 26 2016 Made a minor update this evening to increase winds across the region for a short time as cold front crosses the region. Mainly dry conditions will continue into Monday as ridging builds over the Northern Rockies. Temperatures will be slightly warmer with highs in the 80s across the area. Have kept a slight chance of thunderstorms over the southeast Monday night as winds turn more southeasterly, and instability increases as a low level jet looks to develop and a theta-e ridge noses in.
643 PM CDT SUN JUN 26 2016 19z/2pm surface analysis shows cold front slowly dropping southward toward the I-72 corridor. The cold front should be along or just south of I-70 Monday morning with any lingering threat for showers/storms exiting our southern counties during the morning. Somewhat drier air will slowly filter south into our area during the day but temperatures will not show much affect from the first cold front as afternoon temperatures rise to around 90 far north to the lower 90s central and south. A second cold front is slated to push south into our area later Monday afternoon and evening but with the deeper moisture shunted just south of our area from the first frontal boundary, will continue to keep it dry tomorrow into tomorrow evening.
/issued 244 PM CDT SUN JUN 26 2016/ SHORT TERM (Tonight through Monday Night): Upper low continues to spin across west Texas (near Midland) this afternoon, while deep layer moisture continues to press west into Mexico and become somewhat more diffuse farther south, including Deep South Texas and the Rio Grande Valley.
709 PM EDT SUN JUN 26 2016 High pressure ridging into the forecast area from the northeast will weaken Monday. Moisture will increase Monday night ahead of a cold front.
70/DD (Issued 703 PM CDT SUN JUN 26 2016) (Issued 241 PM CDT SUN JUN 26 2016) Deep layer ridging over much of the region continues to dominate the overall synoptic pattern. A couple minor perturbations rotating around the eastern periphery of the ridge in the mid/upper level flow will help maintain some weak upper level support for scattered showers and thunderstorms through the beginning of the week. We'll finally see a break in the pattern as a trough digs through the Great Lakes Region and shifts a surface front across the eastern US. Behind the front, high pressure will reestablish by mid week with drier air advecting into the area. With the help of some cloud cover, temps are on track to peak in the low/mid 90s with apparent temps in the upper 90s to low 100s.
A few showers may develop across the Metroplex TAF sites Monday afternoon as a weak cold front approaches from the northeast. A Tropical Upper Tropospheric Trough remains over West Texas near Midland while upper level highs are centered over the Four Corners area and also over southern Arkansas/northern Louisiana. The 3 pm CDT surface analysis indicates that a cold front extended from southwestern Michigan southwestwards through northwestern Oklahoma and the Texas Panhandle into central New Mexico.
917 PM EDT SUN JUN 26 2016 A cold front near chicago will move across the area tonight followed by another cold front monday night.
1041 PM EDT SUN JUN 26 2016 Currently - The ridge axis extending across the Florida Peninsula weakened a few millibars today and was bifurcated this afternoon. Ample deep layered moisture, particularly at the lowest levels along with no inhibition provided a rich environment for shower and thunderstorm development. Short Term Update - Winds will return to a more synoptic light easterly flow overnight as the weak ridge holds over the Florida Peninsula. A weak ridge will remain across the Florida Peninsula, keeping winds light out of a generally easterly direction.
710 PM CDT SUN JUN 26 2016 The closed upper low centered near Kenora Ontario will open up and translate eastward tonight and tomorrow. The risk for thunder should rapidly end this evening, but the area of widespread clouds and showers should slowly sag southward across much of the central and eastern sections of the Duluth CWA through the night with the main trof axis, and persist for much of Monday across the MN Arrowhead and NW Wisconsin.
1047 PM EDT SUN JUN 26 2016 Broad high pressure will remain across the area through Monday.
915 PM EDT SUN JUN 26 2016 High pressure will extend from the Northeast coast southwest through the Mid-Atlantic tonight, then retreat on Monday.
920 PM CDT SUN JUN 26 2016 Secondary cold front pushing south with temps in the northern valley around 60, GF is 59, and Fargo is at 72 at the top of the hour. A secondary cold front has dropped across eastcentral ND and northern MN through the early afternoon. with temperatures ranging from the middle 60s near the Lake of the Woods to the lower 70s near the South Dakota line.
The current satellite water vapour image is showing a ridge of high pressure positioned over California with an upper level low pushing into the Pacific Northwest. Both models maintain a strong ridge of high pressure over the forecast area through midweek with 850mb temperatures reaching 25 to 26 degrees Celsius, so expect the hot inland temperatures to continue.
118 PM EDT Mon Apr 10 2017 A sharp ridge aloft and attendant warm air will provided for 2 very warm early April days to start the work week.
256 PM EDT Mon Apr 10 2017 High pressure will persist near Bermuda through Tuesday night.
201 PM MDT Mon Apr 10 2017 The upper low has moved over northeastern NE/southeastern SD, and high pressure is moving into the Dakotas. Winds will become southerly tonight as high pressure slides to the east. A weak ridge will move over the northern plains Tuesday, bringing mild and dry weather. Generally dry and milder conditions will develop for the rest of the week as a weak ridging pattern remains over the region.
309 PM EDT Mon Apr 10 2017 High pressure is centered east of the Mid-Atlantic states, nestled beneath an amplifying mid-upper level ridge. Visible satellite animations reveal arcing pulses of stratocumulus along the southern flank of the developing subtropical ridge. Temperatures are in the lower 80s with dewpoints in the lower 60s.
Did go a bit cooler on temperatures tonight and Tuesday, the former due to rain-cooled air (downdrafts) and the latter also due to the lack of sunshine.
Dewpoints should increase more tonight as a cold front approaches from the northwest. Storms will remain possible across the lower Ohio Valley Tuesday as the front pushes through, but these are not expected to become severe. Temperatures will remain on the warmer side tonight in the upper 50s to around 60. Tomorrow and tomorrow night will be a bit cooler given the cloud cover and showers.
218 PM EDT Mon Apr 10 2017 A high pressure system will slowly give way to an approaching frontal system Tuesday. A weak cold front moves through Tuesday night. High pressure for mid week. Large upper ridge across the eastern U. A weak cold front will push through the region Tuesday/Tuesday night, providing some showers and thunderstorms.