Aikyam-Lab/Synoptic-Bench huggingface dataset:
For the remainder of the week into the weekend, the region will remain situated between strong high pressure centered over Mexico and a series of progressive low pressure systems well to the north. Mostly sunny skies through the rest of today and increasing heights aloft will give temperatures a few degree boost as highs across the lower deserts easily reach into the lower 80s.
417 AM MST Wed Nov 8 2017 Current surface map shows trof across central Montana/eastern Wyoming. Upper level ridge building across the northern Rockies, with abundant high clouds spreading across the northern plains. For today, weak westerly low level flow will bring warmer temperatures today, though clouds will limit warming across the northern half of forecast area. Cold front backs into the area tonight as 1035mb high slips southward out of Canada. The high shifts into the eastern Dakotas Thursday.
WV imagery indicates a weak upper level ridge of high pressure moving eastward across the Intermountain West. Near the surface, a broad area of high pressure is shifting east across the Central Plains. The cold front should make it to along or south of the Oklahoma border before stalling out.
Warmer today with partly to mostly cloudy skies across the region.
619 AM EST Wed Nov 8 2017 Low pressure tracks across southern areas this morning. Cooler air moves in for the end of the work week.
The cold front should make it to along or south of the Oklahoma border before stalling out.
444 AM MST Wed Nov 8 2017 Upper trough swinging southeastward through Colorado early this morning, with back edge of snowfall dropping south of the Arkansas River as of 1030z. Fairly substantial warming aloft then develops this afternoon and overnight as flat upper ridge builds over the srn Rockies, leading to max temps well above freezing across most of the region by late day.
High pressure will remain in place over western Montana and central Idaho through today. High level clouds continue to stream through the region this morning, which has largely kept temperatures a bit warmer than yesterday. This system will bring warmer air into the mid levels of the atmosphere. The main concern as this occurs, is that any lingering cold air in valleys due to inversions may allow for a period of some light freezing rain. This should help limit freezing rain from becoming a widespread problem. However, if freezing rain does form, valleys across northwest Montana, especially near the Idaho/Montana, stand the best chance.
Meanwhile, winds at the surface will be from 8 to 15 mph from the north with the highest winds likely confined to to GLH/GWO where some surface gusts through the period could reach up to 20 mph at times. /BB/ Today and tonight: The slow moving cold front that passed south through most of the region yesterday and through the evening is now just starting to clear through the Pine Belt and will be heading toward the coast through the day.
622 AM EST Wed Nov 8 2017 A cold front crossing the Central Midlands early this morning will push south of the CSRA just after sunrise. Cooler temperatures will overspread the region behind the front.
Upper trough axis along north edge of strong upper jet was sinking southeast into central portions of the CONUS overnight. The next longwave trough rotates southeast around the Hudson's Bay upper low and pushes another Canadian cold front into the area late tonight. With west to southwest flow remaining in place off the surface and some high cloud increase, a somewhat warmer night is anticipated with lows in the mid 20s to around 30.
917 AM EST Wed Nov 8 2017 Areas of low stratus and fog over the Nature Coast and across southwest Florida continue to slowly burn off early this morning with another dry and unseasonably warm day with ample sunshine expected as high pressure surface and aloft remains in control. Temperatures currently in the upper 60s to lower 70s will climb into the lower 80s along the coast, and mid and even some upper 80s over inland locations during the afternoon. Some very delightful boating conditions with light northeast winds and slight seas will continue over the Gulf waters the remainder of today as high pressure remains in control with an onshore sea breeze component developing along the coast during the afternoon.
Elongated upper ridging extends across the Gulf of Mexico this morning beneath a belt of strong westerlies over the Mid South and Southeast U. At the surface, a cold front extending from the Mid Atlantic to the northern Gulf Coast is decelerating with a shallow cold airmass overspreading the Southern Plains and lower Mississippi Valley region. To the south of the front weak high pressure lingers with unseasonably warm and moist conditions for November. Lows will generally range from the lower 60s north to the mid 60s elsewhere.
606 AM EST Wed Nov 8 2017 High pressure will build into the region through Thursday. A strong cold front will drop south across New England Thursday night.
High temperatures should remain on the cool side today with most locations remaining in the lower to middle 50s. as northerly winds of 5 to 15 mph range has kept the lowest layer mixed.
It will be a cold rain thanks to a cold front which has passed south and west of the Rio Grande with most areas seeing high temperatures this afternoon 15-30 degrees cooler than yesterday. Therefore, a few locations could see low temperatures near freezing Thursday morning. The amount of rain received in any given location may work against temperatures dropping readily though since surface dewpoints will be above freezing.
The high PoPs down near the Red River still look on track, as a nice low- mid level frontogenetic band has set up over northern TX, and some of this precip will bleed up into far southern OK thru the day. with the highest rain chances remaining across the southern half of the forecast area. Broad surface ridging will build across the region in the wake of the exiting system. with warmer afternoon temps (although still remaining below average).
as northerly winds of 5 to 15 mph range has kept the lowest layer mixed.
517 AM CST Wed Nov 8 2017 Surface ridging center over SE Nebraska and NW Missouri this morning allowing for temperatures to drop well into the 20s, perhaps upper teens in some low spots. The current ridge over the area will center just to the east of the area, and become a little more diffuse, which should get some light southerly winds going.
A jet streak associated with the Hudson Bay low pressure will swing through North Dakota today. Most models bring the center of the high right over western North Dakota by around sunrise. The high temperature forecast for Wednesday ranges from the upper teens north, to the upper 20s south. Normal seasonal high temperatures are in the low/mid 40s.
With ample insolation today, have trended temps toward the warmer guidance, despite the CAA across the region. Areas that will have light/calm winds tonight, have trended aob the cooler guidance. Northern portions of the CWA will see winds pick up from the SW late tonight with some high clouds associated with an approaching upper trof. However, have still trended twd the cooler guidance and expect temps to drop slowly or level late tonight. Tilly A deepening upper level trough will move eastward through the Great Lakes region and send a cold front southeastward through our forecast area on Thursday. This should be a dry cold frontal passage in our area with limited moisture. Any precipitation should be northeast of our region closer to the upper level trough.
High pressure at the surface will slide southeast as well during the day today and light and variable winds this morning will become southwesterly during the day. This disturbance will dislodge another cool bit of air that will move through with the cold front. Lows are expected to range from the low 20s in central Nebraska to the mid-upper 20s over north central Kansas.
High pressure continues to dominate the weather pattern with relatively dry and benign weather conditons. There is a 500mb ridge centered over Mexico, extending well eastward, with the eastern edge over Florida. At the surface, low pressure is developing off the mid- Atlantic coast, and will progress to the northeast. there is high pressure well to the north, which should keep the over all flow out of the northeast.
619 AM EST Wed Nov 8 2017 Issued 1254 AM EST Tue Nov 7 2017 High pressure will build across the region today providing mainly sunny skies and cooler than normal afternoon highs in the mid to upper 40s. Clouds will begin to increase later tonight into Thursday as a strong cold front approaches.
Today's high temperatures are likely to occur early this afternoon as a cooler airmass pushes down and temperatures begin to slowly decrease by mid afternoon. Rain chances come to an end from west to east this evening and continuing overnight as the mid to upper level disturbance pushes further to the east and an upper level low pressure system currently over southern Arizona moves across southern New Mexico/west Texas/northern Mexico throughout the day and over our area this evening. Dry and cooler weather conditions are expected across South Central Texas on Thursday with overnight lows in the lower 40s across the Hill Country and mid to upper 40s across the rest of the area. Highs will only reach the lower to mid 60s.
946 AM EST Wed Nov 8 2017 Low pressure tracks across southern areas this morning. Cooler air moves in for the end of the work week.
304 AM MST Wed Nov 8 2017 Current surface map shows trof across central Montana/eastern Wyoming. Upper level ridge building across the northern Rockies, with abundant high clouds spreading across the northern plains. For today, weak westerly low level flow will bring warmer temperatures today, though clouds will limit warming across the northern half of forecast area. Cold front backs into the area tonight as 1035mb high slips southward out of Canada. The high shifts into the eastern Dakotas Thursday.
Temps are currently some 10-15 degrees warmer than yesterday at this time. A surface cold front currently draped across southern Manitoba and Saskatchewan will sag into and across North Dakota and northern Minnesota through the late forenoon and afternoon hours producing cloudy skies and widespread light snow. From one to two inches of snow is expected today mainly along and north of the Highway 200 corridor, with Trace to one inch snowfall amounts south of the Highway 200 corridor.
Subsidence and drying under the ridge will help dissipate todays cloudiness. Denver cyclone has developed in the early morning hours, turning surface wind north to northeast on the plains. Warmer temperatures in the afternoon under sunshine, with highs into the 50s on the plains and 30s/40s in the mountains depending on elevation.
458 AM MST Wed Nov 8 2017 12Z TAF CYCLE Low clouds and fog producing MVFR and IFR conditions along and E of the central mountain, and also around SAF, should gradually lift and dissipate around mid morning to mid day as the low-level flow shifts out of the S and SW in the wake of an exiting upper level trough. Temperatures will be cool today over the eastern plains as highs only top out in the low 50s.
However, 12Z soundings around the region show a very moist air mass, and a surface analysis shows an inverted trough across the Appalachians. Thus, some light precip may still be possible across the area through the day, so the low/slight chance PoPs this afternoon will be maintained.
Instabilities don't look very good, but will leave a mention of isolated thunderstorms for areas southwest of a Breckenridge to Hillsboro to Hearne line where they look best. The cloud cover along with continued cold advection in the lower levels and precipitation will result in a very cool day across the region with highs expected to be in the mid 40s west to the lower 50s southeast. Lows will range from the lower 30s northwest to the mid 40s southeast.
We are on track for another well above normal day before a cold front comes down later this week and cools us off. High pressure ridge will sink South of the region Today, as a cold front approaches from the North.
For today, cloud cover will begin to dissipate as a Canadian high pressure center approaches from the northwest. For tonight, look for readings to fall into the lower 30s.
a frontal boundary to our south is expected to lift a bit northward and associated shower activity and the low clouds and reduced VIS that goes with it will push back into the area.
Overall trends unchanged with some sunshine forecast today and temps warming above freezing. With the fog, may also see some patchy freezing drizzle, before the light snowfall develops. The mtn ridges and foothills are likely to see the greater snow amounts, with snowfall rates up to three-quarter inch per hour this evening, eventually totally 2-4 inches by midnight. Dry and mild weather will return for the latter half of the week as an upper ridge builds over the Four Corners region.
There is a 500mb ridge centered over Mexico, extending well eastward, with the eastern edge over Florida. At the surface, low pressure is developing off the mid- Atlantic coast, and will progress to the northeast. there is high pressure well to the north, which should keep the over all flow out of the northeast.
647 AM EST Wed Nov 8 2017 A cold front crossing the Central Midlands early this morning will push south of the CSRA just after sunrise. Cooler temperatures will overspread the region behind the front.
This morning's surface analysis indicate a surface cold front extending from SW Mississippi through Acadiana and out over the northern Gulf of Mexico. This will in temperatures being much cooler than they have been in the past week.
431 AM MST Wed Nov 8 2017 Current upper air analysis shows a short wave trough over the Central Plains. West of the short wave trough a ridge was slowly building in. Radar imagery shows the light snow is gradually ending/moving southeast ahead of the short wave trough. Warm air advection will allow highs to be warmer than yesterday. Winds will be light due to a high pressure at 850 mb overhead, although the pressure gradient will be tight enough to cause winds to gust 15-20 MPH. After midnight a cold front will move in, turning the winds to the north.
Current 2-inch soil temperatures on the Oklahoma Mesonet are near 50F and temperatures should warm to above freezing by mid-morning.
Cold front continues to quickly move south across South Texas this early morning having already moved south of Laredo to Kingsville and expected to exit the Middle Texas Coastal Waters in the next hour or so. Breezy winds today will diminish heading into Thursday as high pressure builds into the region. Afternoon temperatures will struggle to break 60 degrees, with overnight lows to drop into the lower 50s across much of the region.
Temperatures today should top out in the lower 50s for most locations, whereas a little more sunshine Thursday should make for mid to upper 50s after morning lows in the 30s.
A cold front has move through all the terminals with northerly surface winds now being reported at all sites. This morning's surface analysis indicate a surface cold front extending from SW Mississippi through Acadiana and out over the northern Gulf of Mexico. This will in temperatures being much cooler than they have been in the past week.
The front is associated with 1032 mb high pressure across nrn Alberta. The RAP model shows a southwesterly stream of low level moisture, but given the southwest winds at the lower levels, it should not pose a stratus situation. Given the mixing associated with the cold front, this guess could be too cold. Other than a prominent trough passage over the weekend, the synoptic pattern aloft can be characterized by quasi-zonal for the next several days.
Wet weather will continue through the end of the work week with high pressure bringing a dry start to the weekend. The wind advisory remains in effect as winds will continue to increase with the approach of the cold front. Lighter, warm frontal precipitation will be possible through the morning hours with the main band of rain arriving to the coast around noon.
The southerly wind ahead of the front will allow temperatures to be warmer than yesterday, despite the colder start and cloud cover.
526 AM CST Wed Nov 8 2017 High pressure dominating the Midwest early this morning, with mostly clear skies and temperatures dropping into the low thirties. Tonight expected to be around freezing for much of the state. Winds become lighter under the ridge axis with a small amount of variability.
1036 AM EST Wed Nov 8 2017 High pressure will extend across the region into Thursday. A cold front will sweep across the area Thursday night. Canadian high pressure will build in for the end of the week. Ridge of high pressure will extend across the area until Thursday afternoon when it gets shunted off to the southeast as a cold front approaches from the northwest. A cold front will move through Thursday night. Although there will be no precipitation with this system, there will be a noticeable change in temperatures with much cooler air working into the region.
945 AM EST Wed Nov 8 2017 High pressure will provide dry weather and below normal temperatures through Thursday. High pressure will provide sunny skies and dry weather for most locations today. Stratus to the southeast of Pittsburgh will slowly break through the day as the low levels start to mix out. A strong cold front will quickly drive through the area Thursday evening, reaching my southern counties shortly after midnight. Additionally, any large scale ascension stays well north of the region in close proximity to the large Hudson Bay upper low.
As such, a chilly light rain should be the primary precip type for most of our CWA, with areas along and north of a Morton-Floydada line more likely to see some very light sleet mix in at times given better refreezing potential below the warm layer. Precip should end quickly from NW-SE later this morning as an elongated trough axis sweeps southeastward ahead of deep subsidence. This theme should be interrupted briefly on Veterans Day as a minor trough grazes the TX Panhandle.
A cold front extended from northwest MN across northern SD to eastern MT. Regional temperatures ranged from the lower teens to mid 20s. Fresh snow cover, clear skies and light winds will promote patchy fog development overnight into the early morning hours over the North Platte River valley and Cheyenne Ridge from Pine Bluffs to Sidney. The central Rockies trough will move into the central/southern Plains today, with the upstream ridge translating east across the Rockies and high plains through late Thursday. High temperatures east of I-25 will be 5-10 degrees cooler with mid 30s to mid 40s. The front shifts east as a warm front Thursday night with south to southwest winds resulting in milder temperatures.
It'll be "clear sailing" the rest of the week, as broad mid-upper deck ridge spreads east from the Northern & Central Rockies across the Northern Plains. Although temps will still be below normal, there will be somewhat warmer weather for all areas during these periods. /Canadian border will push the lower-deck trof axis east that should cross KS Sat afternoon & evening. The warming trend continues Sat & Sun before the next "cold front" arrives. The mid and higher level clouds will decrease across the area later today as the upper trof moving across Oklahoma moves east-southeast away from the region this afternoon and evening.
Southwest winds increasing today and into Wednesday evening ahead of an approaching cold front. Clouds will increase tonight ahead and near the cold front, possibly becoming MVFR along with light snow north of Madison and Milwaukee.
1029 AM EST Wed Nov 8 2017 Currently - A weak ridge axis extending across Florida and broad troughing in the Caribbean is generating light to gentle northeast to east breezes across the Keys and surrounding waters. Significant dry air aloft, due to ridging, is keeping shower activity at a minimum. Winds should edge upwards a bit as as the gradient tightens between the previously mentioned ridge and trough.
Mid and upper level clouds are traversing the lower Ohio Valley this morning. Lows tonight will dip back into the low to mid 30s.
With mostly sunny skies, going highs near 60 to the lower 60s appear reasonable. An upper trough will slide into the western states tonight into Sunday, with resultant lee trough development occurring.
An upper trough situated off the Pacific Northwest coast will move inland tonight and then into Idaho on Sunday. A cold front associated with the trough will move through Sunday morning, bringing snow levels down to near valley floors. Temperatures will be colder on Sunday, except in the Lower Treasure Valley where winds will scour out the inversion and result in slightly warmer temps.
At the surface, high pressure will be in place east of the forecast area and a weak low will be making its way east along the TX/OK border.
Isolated showers continue today in the mountains with southwest flow aloft ahead of the next cold front. Advisories have been issued for locations in Central Idaho with the highest confidence of actual impacts.
In the meantime, a strong weather system in the shape of an upper trough will be on the northwest coast and pushing inland. This picks up plenty of Pacific moisture riding aboard a 110kt jet and pushes it into the Rockies as flow backs in response to the approaching trough. The more important time frame though is expected to be late Sunday and Sunday night as the trough pushes across our region.
458 AM CST Sat Dec 2 2017 (Today and Tonight) Nearly zonal flow aloft continues across Texas as an upper low in the eastern Pacific approaches the Baja coast. Tonight, the upper low over Baja heads east and weakens, approaching far west Texas by Sunday morning.
Another dry day is expected with high pressure in place over the region. The area of high pressure will shift eastward during the day on Sunday resulting in the development of return flow.
broad westerly flow with weak ridging aloft will move across Colorado today, with increasing southwesterly flow late tonight. Temperatures will be slightly cooler this afternoon, but still pleasant. Highs will reach into the lower to mid 60s for the lower elevations. For tonight, increasing flow aloft should allow for warmer conditions. Overnight lows will fall into the lower to mid 30s along the lee slopes of the Eastern Mountains, while areas in the far eastern Arkansas River basin drop into the 20s.
408 AM CST Sat Dec 2 2017 Closed upper low over Baja today will track east across northern Mexico and the southwestern states and will weaken into an open wave by tonight.
Another warm day with temperatures reaching the lower 80s which is several degrees above early Dec normals. Weak pressure pattern over local waters due to proximity of ridge axis just to the north.
Low pressure seen in satellite imagery off the Pacific Northwest coast this morning will be moving through Oregon today through tonight. Enhancing clouds in infrared imagery over Oregon and just offshore are indicative of dynamics rounding the base of the upper trough in combination with upper jet dynamics from a 110-120kt southwesterly polar jet. The main thrust of precipitation will be coming through this evening and overnight with strongest vorticity advection and upper divergence with upper trough.
/issued 458 AM CST Sat Dec 2 2017/ (Today and Tonight) Nearly zonal flow aloft continues across Texas as an upper low in the eastern Pacific approaches the Baja coast. Tonight, the upper low over Baja heads east and weakens, approaching far west Texas by Sunday morning.
853 AM EST Sat Dec 2 2017 A northwest flow is in place aloft across the region this morning with a ridge to our southwest. High pressure will remain to our north for the next several days, with easterly winds turning onshore with the sea breeze each afternoon.
510 AM EST Sat Dec 2 2017 High pressure overhead will maintain dry conditions and seasonably warm temperatures through the weekend. Highs today will generally range from the upper 40s to the lower 50s.