Aikyam-Lab/Synoptic-Bench huggingface dataset:
1005 PM MDT Tue Sep 5 2017 Water vapor shows strong trof over the Upper Midwest/Great Lakes with strong NW/N flow through the Northern Plains. Upper ridge shifting slowly eastward across the western US. At the surface, ridge is building into the western Dakotas. This will result in quite a bit of freezing temps in the Black Hills, with some spotty freezing temps in far southwestern SD.
524 PM MDT Tue Sep 5 2017 Water vapor shows strong trof over the Upper Midwest/Great Lakes with strong NW/N flow through the Northern Plains. Upper ridge shifting slowly eastward across the western US. At the surface, ridge is building into the western Dakotas. This will result in quite a bit of freezing temps in the Black Hills, with some spotty freezing temps in far southwestern SD.
836 PM MDT Tue Sep 5 2017 The 18Z HRRR Vertically Integrated Smoke model shows the current smoke from wildfires over the Pacific Northwest to remain over much of eastern Utah and western Colorado through Wednesday night as high pressure rebuilds over the west and keeps smoke trapped with no features to help move it out.
Light to gentle S/SE breeze this evening will become S/SW into late tonight, as ridge axis across the area shifts slightly southward.
1147 PM CDT Tue Sep 5 2017 A big upper level trough is digging across the Great Lake Region into the Midwest. The center of the high moves over the region late on Wednesday with another seasonable cool day with mostly sunny skies and highs in the lower 70s.
This low level flow will result in high temps warming 4 to 10 degrees above yesterday.
By early to mid-evening, a line of strong to severe thunderstorms is expected to move into northwest Oklahoma as a cold front moves southeastward. Behind the cold front, gusty northerly winds are expected.
1049 AM EDT Fri Oct 6 2017 High pressure remains in control of our weather today with a mostly clear sky. For today, temperatures should be a degree or two warmer than max temperatures yesterday, and the forecast appears on track so far. Chattanooga Airport, TN 83 65 82 71 / 0 10 30 60 Knoxville McGhee Tyson Airport, TN 84 61 82 69 / 0 10 20 60 Oak Ridge, TN 83 61 82 69 / 0 10 20 60 Tri Cities Airport, TN 85 55 83 66 / 0 0 10 60.
1038 AM CDT Fri Oct 6 2017 An upper ridge of high pressure will remains over the Mid-South this morning.
Once the cold front moves through, winds will shift to northwesterly with winds diminishing below 15 kts out of the NW after 06Z Saturday to the end of the TAF period. An upper low over the central Rockies will track east across the Rockies and into the Plains states by tonight. Rounding the base of the upper trough, a strong vort lobe will track east from the Four Corners region and approach the forecast area by 00Z Saturday. A cold front will push south and east across the Panhandles by this evening and tonight.
532 AM MDT Fri Oct 6 2017 Current surface analysis shows low pressure over eastern CO, with inverted trough stretching northward into eastern WY. Upper level analysis shows low pressure over western WY into eastern MT, with strong jet south and east of the low from the Rockies to the Central Plains. Temps are in the 40s and lower 50s across the area, with some upper 30s across the higher Black Hills. Scattered showers and isolated storms will continue to develop and push east across the area through much of the day, lingering across south central SD into the evening, as weakening upper low crosses the region. However, a prefrontal trough passage in the morning will help to bring gusty west to northwest winds across much of the area, especially northwest SD.
An upper low will shift east of Utah this morning.
The coldest low was 25 degrees 12 miles north northwest of Goodridge MN. With southerly return flow just developing this morning as high pressure moves out to the east, lower levels will have some difficulty saturating. Lows tonight will be a bit warmer than previous nights with southerly winds generally remaining sustained and some clouds present overnight.
/Issued 517 AM EDT Fri Oct 6 2017/ Weakness in the 500mb ridge will begin to fill in today as high pressure over the western Atlantic builds westward through Saturday. Meanwhile, at the surface, ridging will begin to weaken as Nate nears the Gulf coast. A few showers are possible across the south today, where the surface ridging has the least influence.
1047 AM EDT Fri Oct 6 2017 A stalled front over central Pennsylvania will lift slowly to the north as a warm front later today through Saturday morning bringing another late taste of summer-like weather to the region.
534 AM MDT Fri Oct 6 2017 Upper low will finally kick out of the northern Rockies today and across the central plains, with accompanying strong synoptic scale forcing. High temperatures will range from the lower 60s in northeast Colorado to the upper 70s south of the front.
926 AM EDT Fri Oct 6 2017 A weak cold front will cross the region today bringing cooler air to the region tonight and Saturday.
A deepening low pressure trough to the west will bring SSW winds into the 10 to 15 mph range with gusts near 20 mph this afternoon. Breezy overnight conditions as the trough and cold front approach and move across NE MT, and windy conditions around the Little Rockies overnight. TEC Synoptic Setup: Short term begins with a large ridge running from southern Idaho through Montana and into central Manitoba. Behind it a large trough resides over British Columbia and is quickly moving into the Alberta Plains. Farther west, a ridge is developing south of the Aleutian Islands with a trough north of it over the Bearing Sea. Today: A ridge will pass over the area leaving dry conditions, light winds, and partly cloudy skies.
/issued 555 AM CDT Fri Oct 6 2017/ For the Four State Region expecting one more day of pleasant weather conditions under the weakening ridge of high pressure aloft that will continue to flatten and re-form. An inverted upper trough/wave will be shifting West across the Northern and Western Gulf of Mexico today and tonight. Also aloft an upper level low over the Northern Rockies has a trough axis reaching to the Southwest across Nevada and California which will swing to the East putting a continued squeeze on the upper ridge overhead and nudging the cold front South tonight and during the day Saturday.
905 AM EDT Fri Oct 6 2017 The region will be between high pressure to the North/Northeast and low pressure in the gulf Today. Models are depicting an inverted trough along the coast Today, which will help provide for convergence.
1012 AM MDT Fri Oct 6 2017 An upper level trough is expected to trigger scattered to numerous showers and storms over the eastern plains this afternoon. Subsidence behind the trough will quickly dry things out later this afternoon and early evening. Gusty northwest winds will also form behind the trough with gusts to 50 mph possible in the foothills. Gusty winds will continue overnight in the high country. An upper level trough will move across the area this aftn into the evening hours. For tonight pcpn should quickly end during the early evening hours across the plains as the upper level trough moves east and subsidence develops.
This mornings sounding indicated an unstable and moist environment, with some slightly drier through the lower levels. A cluster of fast moving showers rolled through the lower Keys this morning resulting in wind gusts near 35 knots.
In response to an approaching cold front, the surface pressure gradient will increase by afternoon, most notably at northern terminals. Today Through Saturday Night An uneventful and warm Friday expected as the dominant upper ridge centered over southern TX continues to flatten. A compact trough currently analyzed across the Intermountain West will graze northern AR Saturday before ejecting northeast, dragging a weakening cold front with it.
Rain chances will ramp back up tonight with the cold front. A cold front will approach late in the period with showers and thunderstorms expected to impact northeast Oklahoma terminals between 08-10Z. An upper system over the Great Basin will move east across the central plains tonight, helping to push a cold front through our area.
Surface map shows a ridge of high pressure bisecting the mid state early this morning, with radiation fog already forming in some locations. A cold front extending from the Great Lakes to the Great Plains remains locked in place due to the strength of the ridge.
Gusty southerly winds will turn northerly by the end of the TAF period behind a cold front. The focus for convection will shift east tonight along a cold front moving through the area, though with the trough located to our north rain chances will not be very high.
755 AM EDT Fri Oct 6 2017 A stalled front over central Pennsylvania will lift slowly to the north as a warm front later today through Saturday morning bringing another late taste of summer-like weather to the region.
An upper ridge was moving off to the east today but not before producing another mild dry day today over most of southwest Washington and northwest Oregon.
707 AM EDT Fri Oct 6 2017 A weak cold front will cross the region today bringing cooler air to the region tonight and Saturday.
A cold front will approach late in the period with showers and thunderstorms expected to impact northeast Oklahoma terminals between 08-10Z. An upper system over the Great Basin will move east across the central plains tonight, helping to push a cold front through our area.
Upper low will finally kick out of the northern Rockies today and across the central plains, with accompanying strong synoptic scale forcing. High temperatures will range from the lower 60s in northeast Colorado to the upper 70s south of the front.
1054 AM CDT Fri Oct 6 2017 High pressure aloft and at the sfc continues to influence our wx today, and unseasonably warm temperatures and mostly clear to partly cloudy skies will be the result. /issued 555 AM CDT Fri Oct 6 2017/ For the Four State Region expecting one more day of pleasant weather conditions under the weakening ridge of high pressure aloft that will continue to flatten and re-form. An inverted upper trough/wave will be shifting West across the Northern and Western Gulf of Mexico today and tonight. Also aloft an upper level low over the Northern Rockies has a trough axis reaching to the Southwest across Nevada and California which will swing to the East putting a continued squeeze on the upper ridge overhead and nudging the cold front South tonight and during the day Saturday.
808 AM EDT Fri Oct 6 2017 A weak cold front will cross the region today bringing cooler air to the region tonight and Saturday.
/issued 417 AM CDT Fri Oct 6 2017/ SHORT TERM (Today through Saturday): One last weak disturbance with a surge of moisture rounding the southeastern side of the retrograding mid level ridge and an approaching upper level trough from the Gulf. Tropical Storm Nate is expected to emerge into the South Central Gulf of Mexico Saturday and with its broad circulation some moisture might work its way into the eastern most portion of the Lower Texas coastal waters.
408 AM EDT Sun May 14 2017 Skies are partly to mostly cloudy with uncomfortable temperatures hovering around 80 degrees and dewpoint readings in the lower 70s. Surface wise, a western Atlantic ridge axis is draped across the archipelago of Cuba with a minor trough extending from north Central Florida in the extreme southeast Gulf of Mexico. A strengthening area of high pressure north of our region will result in fresh to strong low level easterly winds.
For today, light-to-moderate, subsiding NW flow at mid- levels will be in place, with the ridge axis just upstream. Overnight, NAM/GFS time-height sections suggest some very moist air becomes trapped at the lowest levels, with dry air above, pointing to some fog/mist potential. Moving into Monday, heights actually nudge up a bit as the ridge axis passes. Some high-level cloudiness may move in later in the day, after the ridge axis passes, ahead of the next upper low dropping from CA into the Desert Southwest.
Slightly drier and slightly warmer will be the story today (when compared to yesterday), and an even warmer and drier day expected for Monday. In fact, should skies clear overnight tonight, it would be wise to take measures to protect sensitive vegetation, if you have any, as temperatures could still dip down close to the freezing mark.
For the past several days models have been in good agreement with a wrapped up strong consolidated upper low moving from the Pacific NW into Southern Idaho and then slowly across Wyoming, with progress held up by amplified downstream ridge.
320 AM MDT Sun May 14 2017 Current surface analysis shows low pressure over north central ND, with cold front stretching south across the central Dakotas into western Neb. Upper level analysis shows large trough across the western states, with embedded areas of low pressure from northern CA to western Canada. Southwest flow remains over the Rockies into the plains as ridge moves east of the region. Afternoon and evening activity should mostly be focused from northwest to central SD, as weak low pressure is progged to move east through the Black Hills area.
436 AM MDT Sun May 14 2017 Mostly clear skies are being reported across the forecast area this morning with morning low temperatures running in the low to mid 50s in the valleys and low 30s to low 40s at elevation. Slightly cooler temperatures are expected today with mostly sunny skies becoming partly cloudy in the afternoon. The strongest winds are anticipated over western portions of Colorado and eastern Utah as well as across the higher terrain. A cooling trend is expected to begin today with afternoon temperatures running 4 to 8 degrees cooler than Sunday afternoon temperatures. The current satellite water vapor image is showing a low pressure system moving into northern California this morning with a second deeper low pressure system centered over the Washington/British Columbia boarder.
400 AM PDT Sun May 14 2017 Low pressure will maintain below normal daytime temperatures and a chance of mountain showers through Monday.
Low temperatures will range from the mid 40s to low 50s in far eastern Colorado to the low to upper 50s east of the CO/KS border. Slow moving upper low over the Great Basin to start the period will move across the central Rockies to the northern Plains by the end of the period.
A Freeze Warning continues in effect for the Snake Plain area until 9 am MDT as temperatures drop to near or a little below the freezing mark. A low pressure trough remains to our west with one disturbance lifting northeast into northern Idaho this morning while another drops south along the coast.
314 AM EDT Sun May 14 2017 Broad scale high pressure will build over the region today and persist over the region through the work week. This will allow temperatures to climb well above normal and diurnally driven convection to be possible each day, with the greatest chances over the higher terrain. Temps were generally running a bit warmer than fcst because of the delay in moving the front southward. The next 24 hours look rather quiet, courtesy of an upper ridge to our west supporting weak high pressure and a broad WNW flow aloft. As of 230 AM EDT Sunday: the short term fcst picks up at 12z on Monday with broad upper trofing slowly moving off the New England Coast, while steep upper ridging begins to spread over the fcst area from the west.
133 AM EDT Sun May 14 2017 Low pressure over Lower Michigan will track southeast across northwest Pennsylvania early Sunday morning. High pressure will then build south for Sunday and Monday.
Temperatures will climb into the low to mid 80s by afternoon with winds of 10 to 15 mph.
A ridge of high pressure will allow for above normal temperatures and mostly dry conditions through mid week. Although Monday will be another warm day with above normal temperatures expect slightly cooler temperatures across northeastern portions of the forecast area where weak front had worked into the region. Upper ridge will translate across the region early in the period.
233 AM EDT Sun May 14 2017 High pressure will slide south of the area today. A weak and dry cold front will move through from the north tonight.
259 AM CDT Sun May 14 2017 The high pressure ridge is progged to move off to the East today as a short wave will be approaching the area.
1257 AM CDT Sun May 14 2017 High pressure ridge is over the area so winds are light out of the west and skies are clear. Area of high pressure currently southwest of Illinois will settle into the lower Mississippi Valley overnight, resulting in winds swinging around to the southwest with time. The upper ridge over the Plains will slowly build eastward, and keep our area mainly clear into Sunday. Warmth continues to build early in the week, as the upper ridge comes overhead and 850 mb temperatures rise as high as 20C by Monday evening.
158 AM EDT Sun May 14 2017 High pressure will build east across NC today kicking off a warm and dry period that will continue through much of the work week. This weak front will push east over the next couple of hours as weak high pressure begins to push in from the west. High pressure at the surface will combine with subsidence on the back side of the departing mid/upper trough Sunday to produce much drier and warmer conditions. Highs will be in the lower 80s north to mid 80s south. Weak high pressure will build down the Atlantic coast Monday night, with mostly clear skies and mins from 55 to 60. An upper level ridge will build eastward through the midweek period.
For the overnight period, expect mostly clear skies as the upper ridge shifts over the region. /10/ Prior discussion below: Tonight through Sunday: Clouds are slow to break up in the current cold advection pattern, and even a few sprinkles are noted this afternoon, but expect ridging to take hold with strong subsidence leading to clearing skies for tonight and Monday. With the warming temperatures aloft and considerable sun, expect temperatures to be a good bit warmer by Monday afternoon with highs getting back to above climatic normals.
A splitting upper trough will keep showers in the mountains while valleys dry out through Monday. For Sunday night into Monday a weak boundary over s-central Idaho (associated with the southern part of the splitting trough) will be the focus of light shower development from the ID/NV border to the eastern Boise mountains. Slightly warmer surface conditions will fuel a slight chance for thunderstorms in central Idaho.
653 AM EDT Sun May 14 2017 High pressure and drier air will be dominating the area the next few days. Boundary layer appears slightly warmer than yesterday. An anomalously deep upper low developing off the New England coast and northwest flow aloft continues across the region through Monday. A short wave trough may move through the area during the day but air mass appears dry and with weak instability.
Yesterday, the high temperature in Madison was 88 degrees.
313 AM CDT Sun May 14 2017 Warming trend continues today with deep upper ridge parked overhead. This feature will make little eastward progress over the next 36 hours but will continue to deepen slightly, allowing temperatures to rise into the lower and middle 80s today and upper 80s to near 90 on Monday. The upper ridge will flatten somewhat by Monday evening, allowing the first in a series of several upper disturbances to track into the area throughout the week.
636 AM EDT Sun May 14 2017 High pressure will slide south of the area today. A weak and dry cold front will move through from the north tonight.
A couple of weather systems will maintain an onshore flow bringing breezy conditions and cooler than normal temepratures through mid week. Large upper low center over the PAC NW pushing some high clouds through Central CA this morning as noted from IR imagery and maintaining an onshore flow over the area. As the large upper low lifts northward into western Canada, a secondary low center will ride underneath it and push through CA late today through Monday.
515 AM CDT Sun May 14 2017 (Today and Tonight) The forecast for the next 24 hours is dry and warmer. Thus will help hold overnight lows mainly in the lower to mid 60s.
First upper trough moves eastward into Nevada. Temperatures will remain warm as the upper low is still far to the west.
Temperatures warm a few more degrees into the low to mid 80s this afternoon (warmest from Peoria to Springfield west). Comfortable humidity levels again today with dewpoints in the low to mid 50s. Meanwhile upper level ridge builds over IL as 500 mb heights rise to 580-582 dm on Monday. Strong upper level ridge over IL Monday to help push boundary over northern IL back north into WI/MI. Lows Monday night in the lower 60s. A large upper level trof digging over the Rockies during mid/late week with upper level ridge shifting toward the East Coast.
After the wave to the northwest and the weak wave to the south move through some weak upper level ridging will develop which should bring dry and warm conditions the remainder of the day into tonight. Will just have a small threat in central SD as the ridge starts to break down a bit there and might allow a few showers and thunderstorms to develop.
515 AM CDT Sun May 14 2017 (Today and Tonight) The forecast for the next 24 hours is dry and warmer. This will help hold overnight lows mainly in the lower to mid 60s.
329 AM EDT Sun May 14 2017 Glorious weather is in store for Mother's Day, with mostly sunny skies, fairly low humidity, and highs in the low to mid 80s this afternoon. Upper ridging continues to build into the region on Monday, and it'll be another warm day with plenty of sunshine.
Overall pattern starts out with pronounced upper level ridging stretching from East TX north into western Ontario Canada with upper troughs along west coast and over northeast states. This pattern slowly migrates east, as the upper ridge axis becomes centered over the eastern U.
327 AM EDT Sun May 14 2017 High pressure and drier air will be overtaking the region tonight.
A deepening upper level trough over the western U. with the highest chances over the northern Permian Basin.
431 AM EDT Sun May 14 2017 High pressure will build today and then prevail throughout the week. Pre-dawn: In the wake of the cold front, low clouds have managed to expand overnight as forecast soundings show a boundary layer inversion has trapped low level moisture with the arrival of drier air aloft. Temps many areas should be in the lower 60s by dawn. Mid level heights will rise enough to support highs in the lower to mid 80s.
453 AM CDT Sun May 14 2017 Quick update to increase PoPs across the central as elevated convection has increased over the past hour as the cold front has caught up with greater instability associated with the EML and marked by MUCAPE values around 500-1000 j/kg. A dry, breezy and cooler day is expected in the wake of the front.
This will be the last 2 days of the effects of the upper ridge in the southern plains.
After an early morning shower, dry conditions are expected today as heights rise behind an exiting trough. Most of the warm air advection will be confined to the west and far south as cooler air continues to rotate around the persistent eastern upper level low. Western trough is projected to amplify and drift toward the Central CONUS by late in the week, pushing upper ridge from Mid-West to Eastern CONUS. Much warmer temperature and dry weather may be anticipated for much of the period. VFR conditions are expected through tonight as surface ridging slowly builds in, though crossing mid level clouds and a few diurnal cu are expected on the wrn side of an upper low moving across the NE CONUS. Restrictions are possible with the approach of a late week cold front.
359 AM EDT Sun May 14 2017 Low pressure east of New Jersey will track south of Cape Cod. High pressure will begin to build over the region through mid week.
A dry, breezy and cooler day is expected in the wake of the front.