Aikyam-Lab/Synoptic-Bench huggingface dataset:
Have mentioned VCSH in all the TAFs to cover this low probability. Clouds will dissipate this evening with high pressure bringing VRB winds overnight through mid morning Wednesday. /issued 420 PM CDT Tue Aug 22 2017/ SHORT TERM (Tonight through Wednesday Night): 500mb ridge across northwest Mexico and the 500mb inverted trough across the southwest Gulf of Mexico will provide a northeast flow aloft across the lower Texas coast tonight into Wednesday. The remnants of Harvey will move into the Bay of Campeche tonight and possibly redevelop into a tropical cyclone on Wednesday. Will likely see isolated to scattered convection continue to develop offshore the lower Texas coast tonight and some of these showers will move across the coastal sections of the CWA late tonight into Wed morning.
The other main sfc feature of note is the lee trough across MT/eastern WY/eastern CO.
312 AM CDT Wed Aug 23 2017 A small complex of storms continues to track east along the Red River near Lake Texoma late tonight with the cold front. Chances may increase again over portions of western north TX this afternoon within deepest moisture axis, but overall it will be dry today with cooler temps present behind the front.
419 AM EDT Wed Aug 23 2017 This morning, Upper Michigan was situated between high pressure over the Northern Plains and low pressure southeast of the Hudson Bay. As the above mentioned area of high pressure begins to work it's way into Upper Michigan later today, breezy winds will subside through the afternoon and evening hours from west to east.
350 AM EDT Wed Aug 23 2017 High pressure will provide mainly dry but cool weather through the weekend. Surface cold front is moving through northeast Pennsylvania at 3 AM with scattered light showers along the boundary. Highs will range in the lower to middle 70s with valley areas in northeast pennsylvania reaching the upper 70s.
159 AM MDT Wed Aug 23 2017 The northern plains are situated between an upper level ridge to the west and a trough to the east. Upper ridge axis will shift over the Rockies today, as a Canadian low pressure system begins pushing into the Pacific Northwest.
A ridge of high pressure will be situated over the forecast area today. This will result in sunny skies, warmer temperatures and dry conditions. Highs today will be a few degrees warmer than yesterday with readings in the upper 80s to lower 90s.
311 AM EDT Wed Aug 23 2017 Cold front crosses tonight. Cooler and drier high pressure into the weekend. SW to NE oriented cold front currently stretching from SW PA to near the OH River and southwest into KY. Upper trough over the eastern third of the nation will bring much cooler and drier air southward from a large high pressure system centered over central Canada.
The Northern Rockies will remain under a ridge of high pressure for most of the day today. The high pressure will begin to breakdown and shift eastward overnight tonight, allowing for a southwesterly flow to develop.
308 AM CDT Wed Aug 23 2017 The cold front responsible for our afternoon and evening thunderstorms was pushing through Permian Basin and North Texas this morning.
Upper level troughing will continue to hang around today as surface ridging begins to slowly build in. With troughing and some low level moisture still in place over the area, there will some strato cu development during the afternoon.
100 AM EST Sat Jan 27 2018 Increasing clouds ahead of approaching cold front which will cross late today and tonight.
1108 PM CST Fri Jan 26 2018 A cold front has moved into western Minnesota this afternoon. There were stronger winds developing behind it, which will spread across Minnesota overnight, the main cold front, which will bring more Arctic air to the region, will arrive Saturday afternoon. The secondary cold front that is expected to move across central and southern Minnesota late Saturday afternoon, and evening, may have a few flurries associated with it.
Looking at the GOES-16 fog channel, it looks like the lower clouds are starting to gradually spread more to the east.
215 AM MST Sat Jan 27 2018 The forecast focus is on the temperatures as the remaining snow cover continues to affect mainly the high temperatures across the forecast area for the next few days.
The northwest wind with gradually shift south this afternoon as high pressure moves east. Despite a much cooler start to the day compared to yesterday, the downslope wind this afternoon will warm temperatures to the lower 50s to around Scott City and Hays, to upper 50s near Medicine Lodge.
314 AM EST Sat Jan 27 2018 Rain is expected to develop today and tonight with a crossing cold front.
451 AM EST Sat Jan 27 2018 A mean layer anticyclone centered over the Bahamas supports a formidable high pressure cell centered just east of the Delmarva Peninsula. A fortuitous ASCAT pass last evening sampled sustained winds of 30 to 34 knots across the warmer waters of the Straits, providing evidence for a near gale. The SPoRT SST analyses indicate slightly cooler waters in Hawk Channel, which would tend to decouple the full magnitude of the boundary layer winds which are reaching the surface in the Straits. Aside from a few spritzes along the Lower Keys before midnight, precipitation echoes near the island chain have been limited. Temperatures are near 70 with dewpoints in the lower 60s.
330 AM CST Sat Jan 27 2018 09z/3am surface analysis shows cold front approaching the Illinois River.
Moisture will continue to increase over Arkansas ahead of a cold front that is across Kansas and Oklahoma. The cold front will move through the state Saturday with showers.
A low pressure system will shift over Western Washington through midday Saturday--giving windy conditions.
1011 PM MST Fri Jan 26 2018 Axis of the upper trough has moved east of the forecast area this afternoon followed by mostly sunny skies over much of the area as high pressure builds into the region. At the surface, high pressure was centered over western Ontario with a trough extending southward across Minnesota, the arcing into eastern Nebraska. The surface pressure gradient between the low pressure to the east and high pressure over the western CONUS is producing windy conditions over most of the forecast area this afternoon. This weekend, the western upper ridge will amplify, steepening the northwesterly flow aloft over the forecast area.
1130 PM CST Fri Jan 26 2018 Today's warmup was the result of a warm front surging northward and scouring away the stratus and fog that had been in place. However, a cold front sits just west of the CWA and is poised to begin moving through this evening and tonight. As the parent low tracks across southwestern Ontario overnight, it will drag the cold front through the CWA and bring the next wave of cold temperatures in its wake. The better moisture will be closer to the low, and there may be enough along the International Border to lead to patchy freezing drizzle or light snow showers as the cold front pushes through and behind the front. On Saturday, a trough/secondary cold front will work across the CWA as the cold air continues to pour into the region.
237 AM EST Sat Jan 27 2018 Increasing clouds ahead of approaching cold front which will cross late today and tonight.
A few light showers will linger near and just ahead of the cold front, southeast of Waurika to Seminole line before 9 am this morning. The air will be very dry and preferred the lower 00 UTC ECMWF/latest HRRR model surface dewpoints.
232 AM EST Sat Jan 27 2018 High pressure has moved off the Middle Atlantic coast, with a high pressure wedge in place across much of the CWFA. A cold front currently across the middle of the country will begin to push east today into the Mississippi River Valley.
1214 AM EST Sat Jan 27 2018 High pressure remains centered off the coast tonight and Saturday.
245 AM CST Sat Jan 27 2018 Only a few echoes are showing up on radar early this morning off to the west ahead of the front and upper Midwest trough.
This will bring a cold front across the forecast area. Otherwise, high pressure will build into the region today with mainly dry weather although a moist atmosphere will keep skies partly to mostly cloudy.
300 AM CST Sat Jan 27 2018 A cold front is currently making its way through the region. Despite the passage of the cold front, the air behind it is not very cold, so expect afternoon highs once again to reach the 50s. A good radiational cooling set up tonight with the high overhead.
/issued 919 PM CST Fri Jan 26 2018/ Showers ahead of an approaching cold front are already impacting much of Eastern Arkansas and portions of Northwest Tennessee. /issued 307 PM CST Fri Jan 26 2018/ Skies remain sunny over much of the forecast area this afternoon with temperatures in the lower 60s. Currently, a cold front extends from northern Minnesota through central Kansas and into eastern New Mexico. The cold front will move into the forecast area on Saturday with more rain expected. The cold front will move out of the region Saturday night with rain ending from northwest to southeast.
254 AM CST Sat Jan 27 2018 A cold front moved through the area last night however, with little cold air advecting in behind it, temperatures will remain well above normal today.
Moisuture will be increasing through the column today as a trough and cold front move from the Plains to the MS Valley. A S-SW wind at 850 mb will likely produce some weak downslope effects for the northern TN Valley, delaying the onset of rain in that area and warming temps into the lower 60s. Better forcing associated with the upper trough and frontal zone will bring categorical rain chances tonight. With a positive tilt to the upper trough, the front begins to slow as it moves east, moving from near BNA around 00Z to our Plateau counties around 09Z. 5 range, with the higher end of that range being along the Plateau.
235 AM EST Sat Jan 27 2018 High pressure will continue shifting eastward today.
1132 PM CST Fri Jan 26 2018 Northwest winds have been blustery and a band of thick mid/high clouds have slowly progressed east this afternoon in the wake of a cold front. Today's model runs continue to be in very good agreement with the sequence of arctic high pressure systems moving south through Canada and into the Great Plains and Midwest. A high latitude upper level blocking ridge will form north of the Bering Sea and drive a series of very strong arctic high pressures south into the lower 48. The effects of the arctic air on Nebraska will depend the track of the highs which, for the next 7 days, is centered across the upper Missouri river basin and the Midwest.
307 AM CST Sat Jan 27 2018 Short term concerns are couple of small chances for some light snow/flurries with passage of front/upper trough. Appears caa will be best over the northwest cwa as the cold front sweeps southeast today.
This morning the first cold front comes through, that is really weak and will not cool us down much or give us much rainfall, maybe a few sprinkles.
However, an approaching cold front will bring some light rain late this afternoon into tonight.
1131 PM CST Fri Jan 26 2018 Winds will remain strong and gusty through the afternoon hours as the pressure gradient ahead of a cold front remains tight.
1238 AM EST Sat Jan 27 2018 High pressure should maintain dry weather until rain chances return with a Saturday cold front. Mid level clouds should overspread the area overnight in warm advection ahead of an approaching cold front, though dry weather is expected as ridging slides E of the area. As the upper-level trough catches up to the surface feature, moisture will increase further fueling showers through the Ohio Valley. The aforementioned stream of moisture in concert with a favorable upper-level trough and jet combo will be enough to support categorical POPs across the forecast area. Despite the high POPs, QPF remains fairly light with an areal average of about two to four tenths projected.
With mostly sunny skies and limited cold air behind the front, temperatures are expected to rebound back into the lower 60s this afternoon.
1201 AM EST Sat Jan 27 2018 High pressure should maintain dry weather until rain chances return with a Saturday cold front. Mid level clouds should overspread the area overnight in warm advection ahead of an approaching cold front, though dry weather is expected as ridging slides E of the area. As the upper-level trough catches up to the surface feature, moisture will increase further fueling showers through the Ohio Valley. The aforementioned stream of moisture in concert with a favorable upper-level trough and jet combo will be enough to support categorical POPs across the forecast area. Despite the high POPs, QPF remains fairly light with an areal average of about two to four tenths projected.
This high will keep weather conditions quiet through Saturday night.
102 AM EST Sat Jan 27 2018 High pressure along the Eastern Seaboard moves out to sea tonight and Saturday.
332 AM EST Sat Jan 27 2018 Clear to partly cloudy skies will continue this evening as high pressure drifts offshore.
Overnight lows will range from the mid teens west up to the lower 20s in the far east.
Winds will become elevated out of the north overnight as a cold front moves into the area.
Cold front currently stretches from western Great Lakes into west TX. Brief/weak upper ridging will pass over the Rockies and into the Plains Mon night into Tue. This will result in deepening lee troughing Tue and gusty south winds Tue afternoon. A series of impulses are expected to follow the initial wave, which will carve out a deep broad upper trough from the Rockies into the Ohio Valley. There is some model agreement in snow chances Thu across the high Plains with some of this possibly making it into our forecast area. The low clouds will scatter out with light northwest winds prevailing during the day on Saturday.
408 AM EST Sat Jan 27 2018 A cold front will move east across the area late today and early tonight.
301 AM CST Sat Jan 27 2018 A cold front will drop through the area today, and could see a few flurries through the Highway 14 corridor during the early part of the day with saturation in the dendritic layer. Temperatures will run a little cooler than yesterday, with highs mid 30s to lower 40s.
354 AM CST Sat Jan 27 2018 We will see slow cold advection over the next few days, along with a series of weak PV anomalies as the upper pattern becomes more trof-y over the northern plains.
1017 PM MST Fri Jan 26 2018 06Z TAF CYCLE Back door segment of the cold front has just about pushed through the entire eastern plains. In addition, an associated cold front is sliding into the Land of Enchantment, but dry conditions are prevalent. A cold night is in store for northern and central New Mexico tonight as the cold front continues to overtake the state.
Showers are beginning to develop along the cold front that will enter northeast OK over the next few hours.
255 AM MST Sat Jan 27 2018 Current surface analysis shows low pressure over western Ontario, with cold front stretching west-southwest into northern MN and ND. Cooler air will continue to push into the area over the weekend as the cold front to the north slides south through the region today. Highs today will range from the 20s across far northwest SD to the lower 40s across portions of southern SD.
The base of the broad mid-level trough axis that is centered over the Great Lakes region will keep westerly flow in place over the region today. Do not expect much in the way of CAA from this westerly flow, so with mostly sunny skies present the high temperatures should reach into the 50s.
1026 PM CST Fri Jan 26 2018 A cold front has moved through all TAF sites late this evening and has shifted winds to the north and bringing somewhat stronger wind speeds. Dry air will dominate the region behind the front which will support mild days and cold nights, but thankfully winds will be rather light over the weekend as surface ridging holds sway over the region. An upper level ridge will build into the west late this weekend with northwesterly flow aloft dominating the middle of the country.
328 AM CST Sat Jan 27 2018 (Today and Tonight) A cold front is moving south across the Big Country early this morning and will clear far southern counties around the mid morning hours.
Rain showers look to be primarily light with only a few hundredths or less, except a bit more chance for rainfall totaling over a quarter inch south of I-70 where more substantial moisture interacts with the approaching cold front.
337 AM CST Sat Jan 27 2018 A cold front advanced just east of the Mississippi River during the early morning hours. Mild air will remain across the area today in the wake of a cold front. Tonight, another cold front will drop south into the forecast area with an associated weak upper wave brushing the northern counties. Models are in good overall agreement with a progressive pattern and a deep trough being carved out over the eastern two thirds of the Conus for the last half of the week.
Removed the slight chances of freezing drizzle across NW MN the rest of the night. Question is how much, if any, freezing drizzle is reaching the ground. Think that there will be some increasing chances later on this evening as time-height charts show an increase in omega in the low level saturated layer. Measurable snow chances look highest in the north, with flurries more likely south of the Highway 2 corridor.
A cold front continues to work its way into OK late this evening.
1226 AM EST Sat Jan 27 2018 Clear to partly cloudy skies will continue this evening as high pressure drifts offshore.
The low cloud has all cleared out and high cloud is thin enough that it's turned out to be a rather sunny day across the area today. This is the result of a weak and transient upper ridge that is building over the PacNW today.
Values will be on the order of 3000 J/kg by late afternoon for areas off the caprock where surface dew points have been holding in the lower 60s.
Surface analysis showed a weak cold front draped northeast to southwest across the area from near Hays to just west of Dodge City to a weak low pressure center near Guymon this afternoon. The timing for the greatest severe threat appears to be from around 5-9pm before storms move east of the Highway 281 corridor. Also of concern is the potential for a few storms to develop over eastern Colorado and move into far western Kansas, apparently due to upslope flow into the higher terrain. The cold front surges southward later this evening and tonight.
813 PM PDT Sat Apr 15 2017 Many locations will dip below freezing tonight but will recover to the upper 50s and lower 60s on Sunday. Some fog primarily in the sheltered northern valleys overnight and Sunday morning along with perhaps some spotty stratus followed by a generally dry and rather clear and sunny Sunday starting out with some cold freezing temperatures.
908 PM EDT Sat Apr 15 2017 Showers and thunderstorms are expected late Sunday as a cold front moves through.
1057 PM EDT Sat Apr 15 2017 Mild conditions will persist tonight ahead of a cold front advancing from the west. High pressure and dry weather will return to the area for the beginning of the work week. Most locations should be free from precip late Sunday night once the front passes south of the Ohio River and high pressure builds from the northwest.
An upper ridge will bring warm and sunny weather to the area Sunday. An upper low will bring a clouds and a chance of light precipitation to the area Sunday night.
837 PM EDT Sat Apr 15 2017 Aviation An approaching cold front will bring showers and a few thunderstorms tonight.
1018 PM EDT Sat Apr 15 2017 Aviation section updated A cold front will slide southeast across central Indiana on Sunday.
Occasional afternoon breeziness can be expected throughout much of the upcoming week as weak dry troughs brush by.
1045 PM CDT Sat Apr 15 2017 Subjective 18z surface analysis revealed the low pressure was along the NE/KS border in south central NE, with a cold front extending through northeast NE into northwest IA.
In the afternoon a cold front will drop south with much cooler air behind it. A few showers psbl near the front and closer to upper level low that will be in Manitoba.
A cold front will slide southeast across central Indiana on Sunday.
/issued 406 PM CDT Sat Apr 15 2017/ Scattered showers and thunderstorms have developed over much of Eastern Louisiana and portions of Southern and Southeast Arkansas along a mid level trough axis. While most of the activity has been just east of our CWA, isolated convection has developed as far west as the Lower Toledo Bend Country. Vertical ascent ahead of this trough will likely result in a similar scenario for diurnally-driven convection across Deep East Texas and North Central Louisiana.
503 PM PDT Sat Apr 15 2017 Many locations will dip below freezing tonight but will recover to the upper 50s and lower 60s on Sunday.
Fairly deep high pressure ridging will continue across all of the southeast U.
100 AM EDT Sun Apr 16 2017 Showers and thunderstorms can be expected today with a crossing cold front. Low pressure traversing rapidly from the Northern Lakes across Southeastern Canada will shunt a cold front across the Upper Ohio later today.
/Issued 312 PM EDT Sat Apr 15 2017/ GOES-16 water vapor loop shows majority of the Southeast under the influence of a weak mid-upper level ridge. Latest analysis of the sfc also shows the region under the influence of a ridge.
However, have left overnight lows there as is, as the likely cooler air behind the boundary will not be allowed to fall too rapidly because of the increased cloudiness. Everything appears to still point toward a sunny and warmer Sunday with much lighter winds.
835 PM EDT Sat Apr 15 2017 High pressure remains just off the southeast coast through the weekend.
1017 PM MDT Sat Apr 15 2017 Upper level analysis has closed low over south central Canada with mainly zonal flow across the northern plains. At the surface, high pressure is settling across the northern Rockies as a cold front shifts east of the area.
Temperatures in the low 70s and dewpoints in the upper 50s led to MLCAPE values of 500 to 1000 J/kg. A cold front will move though the region overnight which will usher much drier air over MN and WI.
719 PM CDT Sat Apr 15 2017 Cold front over eastern Nebraska/western Iowa will move southeast into Missouri tonight and continue to drift southward to stall across southern Missouri Sunday. Additionally, the southwest end of the MCS over Oklahoma and southwest Missouri will likely disrupt the low level jet further northeast over our area and suck up much of the available instability which should further weaken storms over our area. but we've been running warm so I leaned a little closer to the warmer MAV guidance. Carney The chance of showers and thunderstorms will continue ahead of the cold front on Sunday evening across southern Illinois and southeast Missouri.
A better potential of storms will begin late Sunday afternoon as storms develop off a dryline in the Trans-Pecos/Permian Basin and a weak cold front in the Panhandle, and move east to southeast into West Central Texas.
High pressure through the atmosphere continued to be the main influence on Mid Tn wx. Deeper moisture currently over the lower Ms Valley will stream into the Mid State late tonight, along with a weak impulse. On Sunday, a front will be approaching from the northwest, but the strong high pressure over the southeast states will cause the front to become more latitudinal and quasi-stationary. Sunday will be another warm day with highs mostly in the lower 80s along with increasing humidity.