Aikyam-Lab/Synoptic-Bench huggingface dataset:
644 AM EDT Wed Oct 25 2017 A chance for showers will continue today, as a trough of low pressure remains centered over the Great Lakes. A cold night is in store for the region with frost and freezing temperatures by Thursday morning. High pressure will move into the area late in the week, with a slight increase in temperatures.
Southwest winds will continue into Thursday ahead of a strong cold front. The strong cold front will bring colder and drier air to the region.
A cold front will complete its trek across the region this morning.
142 AM EDT Wed Oct 25 2017 Temperatures will be cooler today through Thursday.
316 AM MDT Wed Oct 25 2017 Upper air analysis shows deep trough continuing across the eastern CONUS. with strong ridging over the western half of the country. Warm air advection has begun at the low levels as a thermal ridge centered over the northern Rockies continues its eastward slide. Models continue to show a strong cold front pushing through the region tonight. Model runs from 00z have generally weakened winds slightly, but wondering how the 12z models will respond with the upcoming round of upper air launches and if the areal coverage of the High Wind headlines will need to be adjusted. Upper ridging will rebuild over the region bringing quieter weather to the CWA.
227 AM EDT Wed Oct 25 2017 Cooler temperatures expected today and Thursday. Another cold front will approach the area over the weekend. The reinforcing cold front has shifted east through the area with increasing cold air advection in its wake. Broad upper trough axis over the eastern CONUS will shift east and off the coast tonight. High pressure will ridge into the forecast area at the surface. Expect dry weather and slightly below normal temperatures Thursday as high pressure settles into the region. Lows each morning expected to be in the lower 40s, with outlying areas possibly dipping into the upper 30s.
A deep trough is located across the east half of the country while a ridge bakes the west coast. A cold front passed the region yesterday morning reinforcing the already cool and dry air mass in place. Through the weekend the trough will remain in place over the eastern half of the U. By Wednesday a short wave will drop out of Canada along the back side of the ridge and into the plains.
A strong upper low was over eastern Canada and an upper trough of low pressure extended south to Indiana. The upper trough over Indiana will rotate on to the east and showers and patchy drizzle should end late tonight. However this will be replaced by another upper trough which will bring cool temperatures and a chance of showers Wednesday afternoon.
407 AM EDT Wed Oct 25 2017 Cool temperatures and scattered shower chances will continue today under a broad upper low.
An upper level ridge centered over the western U. will bring dry weather conditions and warmer temperatures today. The ridge axis will be over northeast Montana this morning. This will bring a surface cold front through the forecast area this afternoon. Another wave is expected tonight with a secondary cold front between 03z and 06z this evening. There will be enough moisture behind the secondary cold front tonight for a slight chance of rain or snow showers depending on temperatures. With northerly flow aloft on Thursday as the trough moves the east, temperatures will be much colder with little rise in temperatures. A large upper ridge builds along the Pacific Coast on Thursday and spreads inland over the weekend. A deep upper level trough will be to the east which will keep Montana in northerly flow aloft.
Tonight will be cold, with low temperatures bottoming out in the low-mid 30's. Deep elongated upper trough extending through the wrn lakes will pivot ewd this evening. Some nascent lake effect likely to blossom for a time mid to late evening timed with maximizing but short lived thermal troughing over lake MI and residual mid level moisture plume. Otherwise chilly airmass will continue Wednesday as weak troughing persists across the lakes along with extensive stratocu. Short amplitude ridging will transit ewd into the wrn lakes Thu ahead of next vigorous nrn stream disturbance amplifying sewd out of Canada. Thereafter another strong cold front passage expected Fri night.
215 AM EDT Wed Oct 25 2017 A chance for showers will continue today, as a trough of low pressure remains centered over the Great Lakes. A cold night is in store for the region with frost and freezing temperatures by Thursday morning. High pressure will move into the area late in the week, with a slight increase in temperatures.
318 AM MDT Wed Oct 25 2017 High pressure aloft followed by westerly winds will bring sunny skies and warming temperatures across southern New Mexico and west Texas today and Thursday.
A deep upper level trough over the upper Midwest will be reinforced this weekend with another very deep upper level trough being carved out.
These west downslope winds should keep low temperatures above freezing tonight despite the dry air mass. A strong upper level short wave trough will dive southward from Canada early on Thursday and then a cutoff low will form over northwest Minnesota by Thursday afternoon. The northerly flow from Canada will help to drive a surface cold front through the Panhandles on Thursday.
629 AM EDT Wed Oct 25 2017 Cooler temperatures expected today and Thursday. Another cold front will approach the area over the weekend. Broad upper trough axis over the eastern CONUS will shift east and off the coast late tonight. High pressure will ridge into the forecast area at the surface.
356 AM CDT Wed Oct 25 2017 A large upper level ridge over the western U. A developing trough over the northern Rockies will dampen the ridge Thursday creating more westerly flow and causing temperatures to warm back up well above normal with highs reaching well into the 80s, and even a few 90s along the Rio Grande. The trough continues to deepen and drop south into the Central Plains on Thursday night unleashing another shot of cold air out of Canada.
354 AM CDT Fri Apr 6 2018 A cold front pushed east of the area overnight as high pressure moved into western Iowa. For tonight, cold high pressure will build into the region, with near record lows in the teens expected at 3 of the 4 main climate locations. Saturday and Saturday Night Cold with highs in the low to mid 30s north to around 40 F south.
Today will feature mainly cloudy and breezy conditions behind a cold front. Lighter winds and dry conditions are then expected over the weekend as high pressure settles in.
Highs today warmer in the mid to upper 80s east and lower 90s west. A strong cold front will move into the region tonight.
A warm front is expected to lift N across the region tonight and early Friday as low pressure tracks from the Midwest to the Upper Great Lakes region. Mainly dry weather is expected after the warm front exits, though rain chances should increase later in the afternoon as the low tracks further NE into Canada, and drags a cold front across the area. The cold front will slow down and become nearly stationary Friday night, with a wave of low pressure moving along the front. Thereafter, broad upper troughing over the Eastern CONUS will maintain cold temperature for the remainder of the weekend. The unsettled pattern will continue with an upper level trough across the eastern United States.
241 AM EDT Fri Apr 6 2018 High pressure along the coast will move farther offshore Friday. Low pressure and the associated frontal system will move into the area Saturday morning with showers and a few thunderstorms through the day.
303 AM EDT Fri Apr 6 2018 High pressure is briefly building over the area today. By this afternoon, the high builds slightly to the south, turning the wind to the south over the Gulf waters, helping to develop a west coast sea breeze. Saturday should still be under the influence of the high, but the flow will be more southwest, as another cold front will be forming and on its way.
This band was associated with an elevated warm front that moved across the area. At the surface, a warm front moved into the area behind this snow. This warm front led to a rapid warm up into the 40s and even close to 60 in NE MO. Cold front passage and windy conditions will drive the short term forecast on Friday.
Cold front now over Minnesota also tracking southeast and will spread some light snow showers into far northern Iowa yet this evening. Highs Friday warm only into the lower 20s northwest to the lower 30s southeast Friday. High pressure slides south of the area Saturday with highs recovering to the lower 30s north to near 40 south by afternoon.
The back door cold front was analyzed from near Riverton WY southeast to near Kimball NE at 21z. The heaviest accumulations should fall in the vicinity of the Pine Ridge across east central Wyoming into the northern NE Panhandle, where GFS/NAM both show QPF up to 0.
432 AM EDT Fri Apr 6 2018 An area of high pressure is centered east of the Carolinas, driving moderate, northeast to east breezes through the Florida Keys. The lower tropospheric mean layer ridge remains centered over the Gulf of Mexico, contributing to weak northeast steering flow.
1142 PM MDT Thu Apr 5 2018 06Z TAF CYCLE VFR conditions prevail and are forecast to persist through the TAF period, except possibly at KLVS and KTCC behind a backdoor cold front Friday evening. Gusty northeast winds will prevail behind the backdoor cold front, with potential for MVFR cigs and possibly blowing dust. The main highlight through the weekend will be a strong cold front surging through the eastern plains with strong winds and areas of blowing dust late Friday afternoon. Temperatures Saturday will be much cooler across eastern New Mexico, while central and western areas remain warm.
206 AM MST Fri Apr 6 2018 Weather systems will remain well north of the area through the week resulting in dry conditions and warmer than average temperatures. High temperatures in the 90s will be common across the lower deserts.
The warm front looks to become anchored from the ArkLaTex region into se LA by noon as rain cooled air to the north prevents much more northward progress. All of this will simmer in this area until a strong cold front entering into the region by late evening nudges the area southeastward.
400 AM CDT Fri Apr 6 2018 Broad upper level low pressure remains from northern MN to Hudson Bay to eastern Canada. Short wave trough over northern MN will rotate through the area today. High pressure over the area Saturday will give light winds and ample sunshine.
High pressure has moved well off the east coast this morning while low pressure is organizing in the plains. A cold front is stretched from the mid Mississippi Valley to north OK. The first wave of activity will push through this morning with the aforementioned short wave over East Tx, however another round of weather is expected this evening/tonight with the next disturbance and incoming cold front.
407 AM CDT Fri Apr 6 2018 Satl imagery this morning showing a very broad trof extending across the CONUS with increased Pacific moisture streaming eastward. the leading edge of a cold front was situated from ern IA-nrn MO-sw KS.
More numerous SHRA/TSRA are then expected to gradually push southeast from the more inland airports Friday night, and the lower conditions in TSRA and possible strong TS wind gusts are more likely after 06z Saturday. However, in the lower levels of the atmosphere below 700mb, the atmosphere remained very dry and very stable.
Water vapor imagery showing first upper low moving into north central Colorado this morning with drier air beginning to move into central Wyoming including Carbon County. Still a warmer system than what we are experiencing currently and guidance suggests freezing levels increasing up to 10-11K feet Saturday afternoon.
Broad cyclonic flow surrounds an upper level low pressure system over northern portions of the CONUS. A warm front will lift northward through the state and will result in a fairly substantial temperature and moisture gradient. The cap would likely break around early to mid afternoon, which would allow for convection to form ahead of the approaching cold front. The severe weather will be waning around or a little after midnight as the cold front exits Arkansas. However, there could also be a modest tornado threat with any embedded mesocyclones within the line.
Most concern is the passing of a strong cold front Friday night, as early as 02Z at MAF/HOB.
Late this evening a strong cold front arrives with good convergence expected to generate a broken line of showers and storms at least over areas along and east of Highway 281. Farther west the consensus is for scattered clouds for much of the day, leading to warmer maxes in the low 70s.
327 AM CDT Fri Apr 6 2018 Early this morning a cold front has moved through the CWA however, the better cold air advection has lagged behind the front. High pressure should begin to build into the area from the northern Plains tonight ushering in another round of dry air and shunting precipitation south of the area. A unseasonably cool day is then expected on Saturday with highs in the upper 30s to lower 40s as high pressure dominates.
441 AM CDT Fri Apr 6 2018 A strong Canadian cold front will move through the area this afternoon. Overnight temperatures will tank and fall below freezing behind the front for the entire FA. Friday night into Saturday as the cold air is overrun by warmer and slightly more moist air, there could be just enough isentropic lifting to create a flurry or two in Childress, Hall and Cottle counties. 28 By Saturday morning, we will once again be under the influence of NWRLY flow with ridging along the west coast. An upper level low will approach the Pacific NW and stall though a wave of energy will eject eastward across the CONUS.
This weekend will remain abnormally cold with highs Saturday generally in the lower 30s.
The strongest cold advection for the High Plains will be between 18 and 21 UTC, at which point, enhanced chances for post frontal, upslope precipitation will develop and last through about midnight before much more dry air overtakes the area.
347 AM CDT Fri Apr 6 2018 A couple of reinforcing shots of colder air are moving into the broad long wave trough over the eastern half of the country.
Expect highs on Saturday to rebound into the upper 20s and upper 30s, as warmer air slides in ahead of the approaching storm system. While a few breezes will be possible this afternoon and Saturday afternoon, pockets of snow on the ground, and the very cold airmass should keep fire weather concerns on the low end.
Clouds will increase tonight ahead of an approaching cold front with MVFR to IFR ceilings expected late tonight.
High pressure lingers Friday night across the region, allowing low temperatures to dip back into the single digits in many locations under clear skies and light winds. This will allow some of us to recover to temperatures above freezing by the afternoon.
1112 PM MDT Thu Apr 5 2018 Upper level analysis has closed low and associated trof swinging through southern Manitoba, with ridging across the West Coast. At the surface, weak cold front has pushed through much of western SD with winds breezy out of the north. After midnight, snow will be heavy at times, especially across the warning areas, with up to 8 inches of snow possible, and locally higher amounts across the higher elevations of the Black Hills. Cold high pressure will settle into the northern plains Friday. Transient ridging will allow for a brief dry period Friday night into Saturday, before the next wave brings another round of precip. Slightly warmer temps may allow for some of this precip to fall as rain, then changing to snow Saturday night, mainly across eastern SD.
340 AM EDT Fri Apr 6 2018 High pressure will move farther off the Southeast Coast ahead of an approaching front. Low pressure tracking eastward along the front will move into the forecast area Saturday. The low will lift northeast of the area Saturday night.
While an upper ridge moves into Montana tonight, the forecast area will remain on the cold side of a frontal boundary that will be over western Montana. That ridge will move east across Montana on Saturday which will allow for somewhat warmer temperatures. The frontal boundary will begin to move east as a warm front with moisture overrunning it.
Temps today will be well above normal (normal for MAF is 78) with a sfc trof bringing downslope SW winds. It doesn't look like there will be widespread freezing temps due to cloud cover and elevated winds.
Weather systems will remain well north of the area through the week resulting in dry conditions and warmer than average temperatures. High temperatures in the 90s will be common across the lower deserts.
Early this morning a surface cold front was stretched across central Missouri. This will likely result in a period of freezing rain and/or sleet for portions of the area before changing to all snow. Stay Tuned!! The colder air will result in very cold temperatures late tonight, with lows expected in the lower 20s, and perhaps some upper teens in some of the colder locations. Any lingering snow will end early Saturday, as high pressure builds into the region from the north. With a January like start to the day, temperatures will warm as clouds clear, but still remain well below seasonal normals with highs only in the lower to middle 40s.
316 AM MDT Fri Apr 6 2018 An upper low over Hudson Bay and associated long-wave trough over the central/eastern CONUS were dominating the weather pattern. At the surface a reinforcing cold front was moving south through most of the CWA by 09z. An upper low will move over the Pacific Northwest on Saturday, with considerable low-level warm advection ahead of the system. However, expect the low-level inversion to hang tough in snow-covered areas, and also for cumulus to develop in areas that do mix out.
Zonal flow aloft and surface ridging on Friday will quickly transition to upper troughing and a strong cold front on Saturday.
The concern for freezing rain in northwest Montana remains, but is trending down. With the slightly later timing, the high sun angle this time of year will warm roads making it harder for freezing rain to occur. Some freezing rain Saturday morning remains possible however, and it will be isolated and short lived.
Warmer air aloft will also raise snow-levels significantly and increase snowmelt and runoff through Saturday. Strongest winds will occur along the storm's cold front, expected around noon PDT in eastern Oregon, and Saturday afternoon and early evening in southwestern Idaho. Light precipitation will accompany the low ceilings with snow levels of 7-8k feet MSL.
High pressure ridge axis will settle south toward FL and produce veering low level winds, east to southeast today and southeast to south tonight. Mins tonight will remain mild in the low to mid 60s with a light south wind.
Tonight, the low pressure system track to our south while a cold front approaches from the north.
356 AM PDT Fri Apr 6 2018 A low pressure system moving inland along the West Coast on Saturday will bring more clouds and periods of stronger and gusty west winds in the mountains and deserts through Saturday night with small chances for light rain near the mountains for Saturday afternoon and evening.
559 AM EDT Fri Apr 6 2018 High pressure will move farther off the Southeast Coast ahead of an approaching front. Low pressure tracking eastward along the front will move into the forecast area Saturday. The low will lift northeast of the area Saturday night.
This will send a strong cold front through the forecast area tomorrow morning. Warm temps today carrying over tonight and higher moisture at the surface with cooling mid level temps as the cold front approaches will set the stage for a severe weather event. All modes of severe weather are possible but hail and damaging winds look to be the higher probabilities as low level shear is on the lower side. Some of the higher pops will carry over into the Saturday forecast period but most should be right after sunrise.
104 AM EDT Fri Apr 6 2018 Dry high pressure will prevail across the region into Saturday morning. A strong cold front will cross the area Saturday afternoon and Saturday evening.
A mid/upper trough axis then moves across the upper Great lakes later today and tonight. Strong cold air advection today on brisk northwest winds, steepens the low level lapse rates, and enough moisture between 850 and 700 mb, could be enough to generate afternoon snow showers, especially north areas. An upper level trough will dig south across the eastern U.
442 AM MDT Fri Apr 6 2018 An upper low over Hudson Bay and associated long-wave trough over the central/eastern CONUS were dominating the weather pattern. At the surface a reinforcing cold front was moving south through most of the CWA by 09z. An upper low will move over the Pacific Northwest on Saturday, with considerable low-level warm advection ahead of the system. However, expect the low-level inversion to hang tough in snow-covered areas, and also for cumulus to develop in areas that do mix out.
/Issued 349 PM CDT Thu Apr 5 2018/ A coastal trough situated off of the Texas coast and southerly flow has allowed for scattered showers and a few thunderstorms to develop along and near the coast this afternoon. Temperatures on Friday will rise into the low to mid 90s across the Rio Grande with 80s closer to the Coast.
Temperatures in the low/mid 30s this morning should gradually fall into the 20s from N-S this afternoon and evening.
In addition, a cold front will move southward over the northeast plains of Colorado this morning which will usher in much colder air along with shallow upslope flow. Cross-sections continue to show abundant moisture embedded in the westerly flow, however, there is considerable warm air advection going on in the lower to mid levels. Across nern CO as the low lvl sfc gradient increases by aftn expect gusty south winds across the plains with warmer temperatures. However, over the far nern corner, temps won't warm as much as compared to areas closer to the foothills where readings may reach the lower 60s. For Sat night into early Sun an upper level trough will move across the area along with a quick shot of mid lvl ascent.
Potent cold front will continue to sink south today allowing arctic air to spill across the central and southern Plains. These warmer temps are expected to continue through Thu. Strong and gusty northeast winds will spread south across the area Friday morning, in wake of a strong cold front, along with VFR ceilings around 3500-6000 ft AGL. This will keep RH values on the high side.
541 AM CDT Fri Apr 6 2018 West to northwest winds are increasing in the wake of a cold front that swept through earlier in the morning. A mid/upper trough axis then moves across the upper Great lakes later today and tonight. Strong cold air advection today on brisk northwest winds, steepens the low level lapse rates, and enough moisture between 850 and 700 mb, could be enough to generate afternoon snow showers, especially north areas. An upper level trough will dig south across the eastern U.
330 AM CDT Fri Apr 6 2018 An upper level trough will continue to dig across the central and eastern half of the U. A strong cold front will be dropping south out of the Central Plains today and push across the Mid South tonight. Showers and thunderstorms should continue to blossom across the region today in response to the approaching upper trough. As the cold front drops south tonight, much colder air will filter into the area. In these areas, some light accumulations will be possible, mainly on grassy surfaces, although some slick spots could develop on elevated road surfaces such as bridges and overpasses.
A cold front will move through central Indiana today, bringing some rain and snow with it.