Aikyam-Lab/Synoptic-Bench huggingface dataset:
Near the surface, a lee side trough of low pressure is edging eastward across eastern Colorado. The low will kick out of eastern Colorado and move east, shifting wind northerly early Saturday morning. Saturday: Wind will become northerly at 10-20 mph sustained, with gusts to 25 mph through the day as weak high pressure moves east. Lee troughing develops by afternoon and deepens. With the high wind, low relative humidity and dry ground, elevated fire weather will be a concern Saturday.
1147 PM CST Fri Feb 16 2018 Current forecast looks on track with high pressure bringing light winds, partly cloudy skies, dry weather and colder temps. Back edge of the low clouds have made it just east of the I-55 corridor early this afternoon, though there are still plenty of high clouds streaming northeast south of I-72.
Well to the SE of the trough a broad moisture axis covered most of OK, and had crossed the OK/KS border. NW flow would advect much warmer & drier air across KS which would elevate the grassland fire danger across all of central & most of south-central KS where it'll reach the "Very High" category. Sunday night-Mon night: This 2nd NE-SW oriented lower-deck trough will push into KS Sun night & would cause markedly increasing warm, moist advection, especially across southeast KS. It'll be a wet start to the work-week as the mid-upper trof will continue to make slow eastward progress. An extreme grassland fire danger is very possible in most of central KS on Sun as winds become southwesterly & increase from 25 to 35 mph, with gusts around 35 mph, spread much warmer & drier air into KS.
450 AM EST Sat Feb 17 2018 Low pressure, located over the southern Mississippi Valley early this morning, will track northeast to the Mid Atlantic coast by this evening.
1158 PM CST Fri Feb 16 2018 The cold front has stalled just south of SGR and north of HOU this evening and should remain in this area over the next few hours.
Some parts are warming into the lower 30s this afternoon. Late tonight (mainly after 09Z), precipitation chances start ramping up across the far western/northwestern forecast zones as the low pressure system, as seen in water vapor loop over Montana and Idaho, trucks on over into the northern plains region. However, light snow/freezing drizzle look possible along the ND/SD border during the day Sunday.
The warm front to the south may creep into Monroe county but that is as far north as it will get. Weak high pressure will move into the region tonight with light winds and some clearing. High pressure will shift east and a warm front will start lifting north with scattered showers.
With the dry and breezy conditions not quite lining up perfectly, feel fire weather conditions will be elevated, especially with high temperatures in the lower 70s across a portion of the southern CWA on Sunday, but are expected to come up a little short on meeting criteria.
A cold front will move through Oklahoma and north Texas 12-21 UTC Saturday, bringing a wind shift to the north/northeast as well as VFR conditions.
454 AM EST Sat Feb 17 2018 Upper air pattern consists of a 500 mb broad trough over the central U. with a ridge off the west coast. Generally have 2-5 inches of wet 10:1 ratio snow Mon and Mon evening, with lesser amounts under 2 inches near Lake Michigan where some light freezing rain is possible.
1130 PM CST Fri Feb 16 2018 Minimal weather concerns are expected through Saturday as high pressure remains over the region. Therefore, overnight low temperatures will still drop into the low to mid 20s across the forecast area. The temperature forecast is cooler than the straight guidance blend which is appropriate dry ground and clear skies. Arctic high pressure, currently over Alaska, will move south into nrn Neb late Sunday afternoon.
Above freezing dewpoints combined with increasing 925/850-mb wetbulb temps should keep precip liquid overnight. With dewpoints remaining above freezing and mostly cloudy conditions overnight.
Pattern synopsis and forecast: Upper troughing was over the NE conus early this morning with weak NW flow aloft over nrn Michigan. Ridging at the surface and aloft continues to provide pleasant late summer weather Saturday.
Fries Large scale northwesterly flow continues into the weekend as the upper trough slowly gets replaced by short wave ridging. As this occurs, the consensus favors rapidly deepening upper troughing and eventually a closed upper low dropping into the western Great Lakes for the second half of the weekend. Before that time, the upper low that will have moved into the Great Lakes early in the week seems poised to slowly meander eastward as it weakens. While we start to get into science fiction forecasting land beyond that juncture, there are some indications from the GEFS/Canadian that deepening troughing in the central portions of North America should drop down from Canada.
353 AM EDT Fri Aug 25 2017 Sprawling high pressure over the Upper Great Lakes will slowly build across our region through the weekend. The high will also bring about a gradual warming trend.
Upper level subtropical ridging persists from northern Mexico to Florida with the jet stream across the northern tier of the CONUS and Canada. Water vapor imagery showing this ridge continue to trap good mid level moisture across all of Texas as well as eastern New Mexico. Hurricane Harvey will have moved inland into South Texas while the western extension of the subtropical ridge buckles northward toward the Great Basin. That will allow the center of the western ridge to drop back southward toward the desert Southwest and backing flow over the High Plains toward north.
551 AM CDT Fri Aug 25 2017 High pressure ridge axis has shifted just to the east this morning. Not updating at this point as the echoes on radar are dissipating as it moves into the ridge. Temperatures today are similar to yesterday, if a degree or two cooler with the sct thin cloud cover.
High pressure building in over the region will result mainly clear skies and a gradual warming trend starting today.
Valley locations will likely drop into the 30s and low 40s, and high valleys will be near to below freezing. Starting Saturday afternoon, a strong ridge of high pressure will begin to build over the Northern Rockies and will bring hot and dry weather to the region.
Dry and tranquil weather is expected to continue today through Saturday as high pressure moves from the Great Lakes into Lawrence River Valley region of the NE US. Highs this afternoon should warm into the upper 70s to the lower 80s. Lows tonight will cool back into the lower- mid 50s in the Bluegrass region with mid-upper 50s for areas along and west of the I-65 corridor.
Once the storm makes landfall, its future holds considerable uncertainty as it stalls between two high pressure systems and along a stationary front.
225 AM EDT Fri Aug 25 2017 A cold front will stall just off the coast tonight.
301 AM CDT Fri Aug 25 2017 Showers and thunderstorms remain across northwest Iowa this morning on the nose of the low level jet and persistent warm air advection. Shear is largely weighted to the low levels with the overall deep layer shear around 25 kts. As the evening progress and the low level jet becomes entrenched across the region, damaging winds could also become a threat. Should see mostly clear to partly cloudy skies on Saturday night as a ridge of high pressure builds in.
622 AM EDT Fri Aug 25 2017 Sprawling high pressure over the Upper Great Lakes will slowly build across our region through the weekend. The high will also bring about a gradual warming trend.
Canadian high pressure will take charge through the weekend providing dry quiet weather with below normal temperatures. Quiet and cool conditions will dominate in the near term and beyond, as Canadian high pressure gradually overspreads the region and takes charge. Prior to dawn, we currently have the main upper trough axis swinging across Central New York/Northeast Pennsylvania. Despite all of this, the upper trough will quickly exit, and a very dry air mass will start to advect into the region. Canadian high pressure will move in from the Western Great Lakes late today, to overspread our region during the first half of the weekend. Loads of sunshine can be anticipated for Saturday, thanks to that very dry high pressure. Canadian high pressure at the surface will settle over the area this weekend.
Models indicating a little more moisture and instability across eastern NV this afternoon compared to yesterday with the high resolution HRRR/RAP models showing isolated thunderstorms developing across eastern NV. Warming trend will commence today and continue through Saturday as upper high builds over the region. The EC and GFS remain consistent in keeping a four corners high over the desert southwest and generally agree on placement of the high center. There is some changes to the high center but overall the run to run consistency remains high. The axis of the high shifts enough to the east to draw some moisture across Nevada. The high pressure will once again bring very hot temperatures across Nevada with many areas reaching the mid to upper 90s for highs. A few areas may even climb back into the low 100s.
304 AM CDT Fri Aug 25 2017 303 AM CDT Early morning GOES water vapor imagery depicts drying and subsidence across the western Great Lakes in the wake of a strong mid-level short wave trough heading into southern New England. Northeast winds will produce a bit of lake cooling, with afternoon temps expected to range from around 70 near the shore to the low- mid 70's further inland. Guidance temps in the low-mid 50's appear reasonable for overnight lows. Ratzer 303 AM CDT Dry weather looks to continue through Saturday, as short wave upper ridge remains across the region. Some increase in mid-high clouds is expected as the Northern Plains short wave pushes into the ridge axis, though temperatures should continue to moderate a bit into the mid-upper 70's away from the lake as winds turn more southeasterly.
Hit or Miss Tstms Possible thru Sun Eve with Temps Continuing Aloft: Anticyclonic flow was over the Srn USA with an embedded trof over Ern CO. with trofs over the NW and NE and a ridge between them over the Nrn Plns/Canadian Prairies. The primary feature of interest for the Cntrl Plns is the CO trof which will advance across Neb/KS today. but a sfc trof will develop to its SW and move into the Panhandle today. Today: Quite a bit of mid-high cloudiness this morning ahead of the upr trof. Pattern: The signal remains persistent that significant amplification will occur Sat as a subtropical high builds over the Wrn USA with a downstream trof over the E.
402 AM EDT Fri Aug 25 2017 Relatively dry short term forecast in store as Canadian high pressure ridge builds into the Southeast. Model solutions advertised the potential for some light rain to develop over the higher terrain of north Georgia on Saturday, so have isolated pops to that area through the afternoon and early evening. Should see an overall cooling trend of a few degrees as the dry, cooler air mass settles over the area through the weekend.
Temperatures today are expected to be slightly cooler than yesterday with highs mostly in the 80s.
641 AM EDT Fri Aug 25 2017 High pressure and dry conditions are expected through the weekend.
Today Through Saturday Night Not a whole lot to discuss in the short term period as high pressure to the NE of AR continues to usher in dry and below normal conditions to the area.
347 AM CDT Fri Aug 25 2017 High pressure ridge axis has shifted just to the east this morning. Not updating at this point as the echoes on radar are dissipating as it moves into the ridge. Temperatures today are similar to yesterday, if a degree or two cooler with the sct thin cloud cover.
335 AM MDT Fri Aug 25 2017 Upper ridging sits across the upper Midwest this morning with near zonal flow across the northwest CONUS. Strong upper ridging is then progged to develop across the western CONUS with the region sitting under northwest flow aloft.
/issued 356 PM EDT Thu Aug 24 2017/ The trough of low pressure near the west coast of the Florida peninsula continues to produce a disorganized area of showers and thunderstorms over South and Central FL. The model guidance continues to show a very aggressive solution with the GFS and ECMWF having the low level flow veering to the south to southwest through Friday as the low pressure shifts northeast across Central Florida into the Atlantic by this weekend.
505 AM EDT Fri Aug 25 2017 Quiet weather continues through the short-term portion of the forecast as high pressure, centered over the U. A very dry atmospheric profile will lead to very few afternoon cu across the area; however, good mixing will occur during the afternoon hours as the back edge of broad troughing lingers nearby. As the high slides slowly off to the east tonight, light southerly flow will retur over the west half, helping to keep temperatures a bit warmer. This will be due to the enhanced radiational cooling under the high pressure center.
1245 AM CDT Fri Aug 25 2017 Aloft: Anticyclonic flow was over the Srn USA with an embedded trof over Ern CO. with trofs over the NW and NE and a ridge between them over the Nrn Plns/Canadian Prairies. The primary feature of interest for the Cntrl Plns is the CO trof which will advance across Neb/KS today. but a sfc trof will develop to its SW and move into the Panhandle today.
232 AM EDT Fri Aug 25 2017 Other than a period of lake stratus over the southern Lake Huron basin/eastern Thumb region this morning, high pressure will bring generally sunny/clear conditions today through Saturday. Both days will also sport very little wind under the high pressure.
130 AM EDT Fri Aug 25 2017 High pressure and a seasonably cool airmass will be in place across the region through Friday, before it works off to the east over the weekend. With the airmass modification and the lingering cloud cover, went with lows in the lower to mid 50s tonight. Lows Friday night will be a few degrees warmer, in the upper 50s to lower 60s. The center of high pressure over the Great Lakes will move off to the east over the weekend, but it will continue to extend/influence our weather with dry conditions.
19z sfc analysis shows high pressure over the region. They all agree that the core of the eastern trough through the Great Lakes will shift east and away from the area tonight with heights rebounding and the mid level northwest flow relaxing. This trend continues into Saturday morning as the area will be in between a developing trough to the northwest and the upper levels of 'Harvey' well off to the southwest. The lower RH will be noted as well in the afternoon. Each night we can expect mostly clear skies and a good radiational cooling environment allowing for moderate ridge to valley temperature splits.
126 AM EDT Fri Aug 25 2017 A cold front will stall just off the coast tonight.
Mountains will still see isolated storms, but will keep most lower elevations dry as convection stays close to the higher terrain.
High pressure aloft will strengthen across the Great Basin over the next several days.
430 AM EDT Fri Aug 25 2017 High pressure and dry conditions are expected through the weekend.
1245 AM CDT Fri Aug 25 2017 High pressure ridge continues to sit over the CWA this evening and should remain there through the overnight hours. 1024 mb high pressure over western Ontario and ridging southward over western IL and mid MS river valley, will drift over the Great Lakes region during tonight and Friday and continue dry and less humid conditions (dewpoints in the 50s) over central/se IL rest of this week. An upper level trof will remain over the Great Lakes and ohio river valley into Friday with upper level ridging into the high plains putting IL in a nw upper level flow. Lows overnight in the low to mid 50s, coolest from I-74 ne where less mid level cloud cover expected. Nearby high pressure will keep winds fairly light generally less than 10 mph.
Another series of disturbances will move into western zones mid day, accompanied by a chunk of monsoonal moisture rotating around ridge anchored over the Great Basin.
Strengthening continues (central pressure down to 958 millibars on NHC's 5 AM Tropical Cyclone Update), and Harvey is expected to be a major hurricane at landfall. Increasing tide levels and storm surge can be expected today and tonight as Harvey heads to the coast and makes landfall with the highest values in and around the Matagorda Bay area.
332 AM EDT Fri Aug 25 2017 Dry and tranquil weather is expected to continue today through Saturday as high pressure moves from the Great Lakes into Lawrence River Valley region of the NE US. Highs this afternoon should warm into the upper 70s to the lower 80s. Lows tonight will cool back into the lower- mid 50s in the Bluegrass region with mid-upper 50s for areas along and west of the I-65 corridor.
221 AM CDT Fri Aug 25 2017 Latest water vapor imagery shows a rather broad upper level trough extending across much of the eastern CONUS, while Hurricane Harvey continues to spin over the northwestern Gulf of Mexico. As the TN Valley remains in between these two features, near zonal flow persists aloft, with high pressure in control at the surface. A pleasant weekend is in store for the area as weak upper ridging builds from the southeast in response to Hurricane Harvey's northward progression. Models are in fair agreement that an upper low will develop over south central Canada and drop into western Great Lakes late Saturday night.
259 AM CDT Fri Aug 25 2017 Weak upper level ridging to the west will maintain another quiet day across our area while broad northwest upper flow keeps temperatures a few degrees below average.
Slight troughing overhead and light winds out of the north will help to keep temperatures cooler than normal. A slight chance for some showers to form on the higher terrain of the Southern Appalachian Mountains, but chances are to low to introduce PoPs into the forecast at this time.
344 AM EDT Fri Aug 25 2017 High pressure centered across the Great Lakes and upper Ohio Valley will keep dry and cooler than normal weather in the offing today and Saturday. Dry northwest flow aloft will continue as gentle height rises occur in wake of a trough approaching New Brunswick.
310 AM EDT Fri Aug 25 2017 High pressure will continue to provide fair weather and below normal temperatures today into this weekend.
329 AM CDT Fri Aug 25 2017 High pressure over the Great Lakes region will produce a dry northeast wind flow through Saturday. Model forecast soundings from the gfs/rap/nam indicate this high cloudiness will continue through today. Highs today will again be in the lower 80s at most locations. Highs Saturday should be in the lower to middle 80s with abundant sunshine and dry air.
603 AM EDT Fri Aug 25 2017 Large area of high pressure encompassing Western and Central Great Lakes will promote clear to partly cloudy skies and light winds through taf period. Other than a period of lake stratus over the southern Lake Huron basin/eastern Thumb region this morning, high pressure will bring generally sunny/clear conditions today through Saturday. Both days will also sport very little wind under the high pressure.
255 AM CDT Fri Aug 25 2017 Canadian high pressure will continue to extend down into Tennessee through the weekend. Cooler than normal air will remain in place through Saturday with tolerable humidity levels. Lows will be in the upper 50s to lower 60s, with highs mainly in the low to mid 80s.
Southwest flow aloft today transitions to zonal tonight, followed by a ridge building in from the south Saturday. Temps today should be much like yesterday, with a few degrees of warming tomorrow as the effects of the building ridge are felt.
Rainfall will be the biggest concern today, with coastal areas of the lower valley in the mix as rain bands arrive with regularity.
635 AM EDT Fri Aug 25 2017 High pressure will continue to provide fair weather and below normal temperatures today into this weekend.
Currently, skies are cloudy with temperatures in the lower 80s along the island chain. Surface wise, a trough of low pressure extends over the southern half of the Sunshine State into the Gulf of Mexico, with a ridge of high pressure along the north coast of the island of Cuba. A broad trough over the southern half of the Florida peninsula into our region will slowly lift northward over the next several days. Due to considerable cloudiness, a few downpours and outflow boundaries, high temperatures will range from the mid 80s to the lower 90s with overnight lows from the mid 70s to lower 80s. A western Atlantic ridge will align near south Florida and our region through the period. High temperatures will average in the lower 90s with overnight lows in the lower 70s.
An additional inch is possible with up to 2 more inches over the higher terrain of Lake and Cook counties. Elsewhere, tonight and Saturday, high pressure will begin to work its way across the area ending the light snow where it hasn't already stopped. This is due to the northerly flow over Lake Superior in concert with the depart area of low pressure. A ridge of high pressure will move through the Northland Saturday night ahead of the next clipper system arriving on Sunday. As the low dips southward through northwest Ontario, light snow showers are possible over much of the Northland.
606 AM EDT Sat Oct 28 2017 High pressure will move to the east of the region today.
325 AM CDT Sat Oct 28 2017 Most locations have dropped below freezing early this morning, with the coldest temps across NW OK. Another cold front is expected by early Mon morning as an upper trough digs into the midwest.
240 AM CDT Sat Oct 28 2017 The strong upper level positively tilted trough which brought the first freeze to the region this morning will be moving off to the east. Temperatures will be warmer today but the extent of cloud cover over the area may keep temps down some. Late evening and into the overnight time frame, another cold front will move through the region bring the temperatures back down. This will allow this next cold front to come through the region dry.
Radar and observations show the sharp cold front moving east through far northeast AL. Temperatures fall from the lower 60s ahead of the front to the lower to middle 40s just behind it. Low clouds appear to be confined to rain areas, with mainly mid and high level ceilings along and in advance of the 7-5h trof axis. Meanwhile, the highest elevations in our forecast area atop the Cumberland Plateau and Lookout Mountain may only reach 44-46 degrees. The deep upper trof axis will be overhead Sunday morning, fortified by another impulse dropping into its base later tonight. At the surface, the ridge axis will shift into the central Gulf Coast and TN valley.
The surface cold front has pushed just east of I-65 as of 3 am this morning. The cold front should be exiting east Alabama by mid morning, with the rain ending for areas west of I-65. MOS guidance is forecasting some below freezing temperatures across the northwest counties, but given boundary layer winds staying around 10 knots overnight and the presence of some low level moisture, will keep readings above 32 degrees. Cold advection will continue on Sunday with the passage of a strong upper-level trough. Afternoon temperatures should only reach the low 50s in the Northeast with mid to upper 50s farther south.
Temperatures will be substantially warmer Sunday, with high temperatures likely to be only a couple of degrees shy of normal.
251 AM MDT Sat Oct 28 2017 Cloudy conditions over the CWA under a northerly upper wind flow between an upper ridge over the western CONUS and a large upper trough from the Great Lakes area into the southern plains. Expect the clouds to hold across the CWA for most of the day today with even a few snow showers possible over the higher mtns as a weak impulse drops south across the CWA. Warmer today but favored the cooler guidance given the ample cloud cover expected. Sunday will start off mainly clear then the next cold front will pass across in the afternoon.