Aikyam-Lab/Synoptic-Bench huggingface dataset:
321 AM EDT Mon Mar 20 2017 Broad surface ridging continues across most of the CONUS with an upper level low off the coast of New England. High temperatures today will be near normal (mid 70s) with light winds as high pressure moves in and shifts southeast. Lower level flow shifts more southwesterly on Tuesday as a thermal ridge builds over the Gulf.
118 AM EDT Mon Mar 20 2017 Warm front today followed by a cold front tonight. High pressure mid week.
Another very warm day is likely although highs will be a few degrees cooler than todays max temps.
353 AM CDT Mon Mar 20 2017 After the elevated storm clusters exit this morning, Canadian high pressure to dump down the upper midwest and battle central plains to OH RVR Valley llvl baroclinicity during the midweek. Then large cyclone still indicated by the latest run medium range models to lift out acrs the mid CONUS in almost a REX type block pattern at week's end.
300 AM CDT Mon Mar 20 2017 Near record warmth expected today as high temperatures soar into the lower 90s across portions of northeast Oklahoma. The warm weather will continue on Tuesday across much of the area south of a cold front, which will move into northeast Oklahoma Tuesday morning.
426 AM EDT Mon Mar 20 2017 There will be a chance of rain this afternoon and tonight as cold front crosses the region.
359 AM EDT Mon Mar 20 2017 High pressure will continue to build in from the west today. A weak frontal system will move southeast of the area late tonight followed by a strong cold front Tuesday night.
For this afternoon, cold front to the west will be moving east with no real solid upper level forcing for the northern two thirds of the cwa. For the southern counties, a warm front will remain nearly stationary along or just south of the border. North of the I96 corridor will have just a chance for showers with cold frontal passage as again moisture will not be as deep and forcing confined mainly to frontal convergence.
422 AM CDT Mon Mar 20 2017 Warm moist southerly flow firmly in place this morning leading to a stratus deck covering most of the area north of the Highway 59 corridor.
As for temps will continue to lean towards the warmer mos numbers for highs today due to continue subsidense in the lower to mid levels and persistence. For lows tonight will continue to lean towards the warmer mos guidance mostly due to persistence. highs today will climb to the lower 80s for most inland areas. and the lower to middle 70s along the immediate coast due to the light onshore flow and cooler sea surface temps.
317 AM MDT Mon Mar 20 2017 Surface cold front associated with a system moving across the northern plains will make its way across the forecast area today, but with ridge holding strong aloft it will have only a minimal impact on temperatures. There will be a lull in the precipitation chances Tuesday afternoon as the upper ridge rebuilds, but due to persistent low level upslope winds and clouds temperatures will only reach the low to mid 50s. Another weak system comes over the ridge Tuesday night with scattered rain showers mainly after midnight.
347 AM CDT Mon Mar 20 2017 Pacific high pressure will continue to build into Western and North Central Nebraska today. This will be quite necessary given the dry air at the lower levels. The snow accumulation process will have to overcome ground temperatures in the lower 40s which suggests no significant travel hazard other than accumulations of slush on the roads.
This will favor advisory level gusts for exposed ridgetops and coastal headlands over Humboldt County through the afternoon.
Latest analysis shows a weak trough/cold front over the Straits of Florida, moving south-southwestward. As indicated, the cold front is quite weak, with the main air mass change a slight decrease in dewpoint temperatures. On the large scale, a progressive, split-flow pattern persists across North America, with mid-level ridging currently presiding over the central United States, and a trough over the western North Atlantic Ocean.
153 AM EDT Mon Mar 20 2017 Aviation A cold front will move across the state Monday triggering some light rain and perhaps a thunderstorms south of I-95.
Expect lows overnight to fall into the low to mid 40s region wide as a result.
321 AM CDT Mon Mar 20 2017 Quiet and cooler weather today with northeasterly surface flow with zonal flow aloft. Highs in the lower 60s to lower 70s, still well above normal on this first day of Spring, but definitely not as warm/hot as yesterday.
336 AM CDT Mon Mar 20 2017 Today concern will be temperatures once again and some light snow possible along a cold front passage this evening across the northeastern quadrant of the forecast area. Cold front with winds turning the north northwest will push across the area this evening in the 00Z- 06Z time frame.
114 AM EDT Mon Mar 20 2017 High pressure along with cooler and drier air will remain over the region through Monday night.
A strong cold front will increase precipitation chances tonight and Tuesday as it moves across the region. Unsettled conditions and cooler temperatures will then prevail for the remainder of the week as a series of weather systems will move across the area. Continued above normal temps today with a pretty solid high and mid cloud deck ahead of an approaching cold front that is forecast to move in later tonight.
355 AM EDT Mon Mar 20 2017 High pressure will build across the area through Tuesday.
259 AM CDT Mon Mar 20 2017 Zonal flow aloft has pushed a cold front into the area, which will continue to move southward this morning. The highest wind gusts will be across northern and central KS, and during the afternoon the winds appear to gradually decrease. Also tonight the low level jet strengthens over the frontal zone therefore isentropic lift and elevated instability could lead to shower and storm development.
400 AM CDT Mon Mar 20 2017 An upper ridge will prevail across the Panhandles today through Tuesday before the upper ridge shifts off to the east of the forecast area by mid week.
This front will lift northward today as a warm front gradually spreading light precipitation across the region.
Despite a mid level short wave aloft, ridging/subsidence in the upper levels and very limited moisture will maintain a dry forecast today through Tue. Moisture in the lowest levels will lead to stratus/patchy fog once again tonight. Temps will generally be persistent but could see mx temps a degree or so warmer on Tue.
434 AM CDT Mon Mar 20 2017 This morning's surface analysis shows an area of high pressure centered SE of Vermilion Bay resulting in light SW winds across much of the CWA.
309 AM EDT Mon Mar 20 2017 Warm front today followed by a cold front tonight. High pressure mid week.
249 AM EDT Mon Mar 20 2017 NNE winds have enveloped all of South Florida as cold front has moved south of the region. Latest observations and satellite imagery show the cold front currently extending from Miami Dade and Inland Monroe County. Temperatures will lower into the low to mid 50s west and interior and into the low 60s along the east coast metro areas. Current satellite and observations show the cold front close to Lake Okechobee with a north to northwest winds gusting between 15 to 20 mph and a cloud deck at around 3000 feet ahead of it. Dry air will continue to advect into the region early portion of the week, allowing to lower RH values into the upper low 40s upper 30s and mid to low 30s by mid week.
437 AM EDT Mon Mar 20 2017 High pressure will begin sliding away from the region today with a frontal boundary sliding into the Mid Atlantic States tonight.
644 AM EDT Mon Mar 20 2017 A weak cold front will pass through tonight and cold air will settle in for the middle of the week.
There is still uncertainty as to the location of this convection with most of the models, particularly the high resolution CAMs keeping most of the convection north-northeast of our forecast area tonight. Most of the convection on Monday should be east of the Mississippi River as the low level jet weakens and veers. Highs on Monday will be unseasonably warm, 10 to 20 degrees above normal, with the warmest readings across central and southeast MO where the least cloud cover is expected along with the highest 850 mb temperatures.
237 AM EDT Mon Mar 20 2017 High pressure will move SE off the coast this afternoon. A lead wave of low pressure and preceding warm front will cross the southern Middle Atlantic states Monday night. The trailing cold front and a secondary wave of low pressure will move through the Carolinas Tue night. After a cold start to the day, sunny skies will warm the highs today into the 60s. The approach of a warm front from the southwest will lead to increasing mid and high level clouds tonight. A weak backdoor cold front will push south through our region Tuesday into Tuesday evening. It appears that other than a few sprinkles, the chance of measurable rain will hold off until the potential weak low pressure wave approaches Tuesday night.
Highs tomorrow will be about 20 degrees cooler than today. but still well above the low 50s normal for the first day of Spring. which is slightly cooler than normal.
439 AM EDT Mon Mar 20 2017 High pressure shifting to our south putting the CWA in a west to southwest flow which will increase low level moisture through tonight. The northern stream is very progressive during this period, with an amplified trough pattern digging deep into the higher latitudes. Tuesday Night: A deepening trough will drop into the northeast with the associated cold front approaching from the north. Mid- level impulses riding the trough through the central CONUS will help initiate showers and isolated thunderstorms along and near the boundary.
Given the recent warmer temperatures, it may be difficult to reach that accumulation as most of that snowfall may melt on contact if it is even realized at all.
441 AM CDT Mon Mar 20 2017 As of 3 AM, a warm front was analyzed in a north/south fashion right along the U. This front will lift to the northeast this morning as low pressure slowly moves east across northern Missouri. Areas of the eastern Ozarks should see highs in the lower 80s. By late this afternoon, a cold front will begin to make its way towards central Missouri.
623 AM EDT Mon Mar 20 2017 High pressure will begin sliding away from the region today with a frontal boundary sliding into the Mid Atlantic States tonight.
604 AM EDT Mon Mar 20 2017 A ridge of High pressure will build east and crest across the region later today before weakening and sliding offshore. Dry and warmer weather can be expected today, with temperatures moderating to near or above normal for a change. The milder air will stick around through Tuesday before a cold frontal passage ushers well below normal temperatures back into the area for mid week. Low pressure may bring a mixed bag of precipitation over the weekend. A 1028 millibar ridge was draped across the eastern CONUS. This moisture starved boundary may touch off a few snow showers across the higher terrain.
621 AM EDT Mon Mar 20 2017 High pressure will remain over the region today. A cold front will cross the region Tuesday.
Cooler and drier air was noted to the E of the fnt, with temps in the mid 40s to mid 50s, with dewpoints still in the 40s. The fntl bndry wl eventually shift EWD today as low pres takes shape to our N, with warmer airmass overspreading the rest of the FA. Clouds and rain chcs on Tue wl result in cooler temps ovr the Nrn counties. Expect another unseasonably warm day to the S of the fntl bndry, with highs in the lower and mid 80s.
1107 PM MDT Sun Mar 19 2017 20z surface analysis had cold front from eastern ND to the Black Hills into northwest WY. Cold front will stall just south of the CWA.
Scattered showers continued across the area overnight, focused along a band of frontogenesis associated with the cold front that moved into the region yesterday. Precipitation begins to shift east tonight as ridging builds in from the west. Still looks like in general that an inch or less of snow is possible across the lower elevations with a couple inches along the foothills and higher totals in the mountains. Shower chances decrease through the day Tuesday as ridging builds over the region and forcing decreases. A warm front associated with the next wave approaching from the west will lift north through the area Tuesday night, perhaps producing some showers. With the warm front lifting over cooler temperatures at the surface (near to slightly below freezing), there is potential for a brief period of freezing rain/ice pellets across our northeast.
Otherwise, anticyclonic flow associated with a building ridge will bring warm and dry weather over the ArkLaMiss early this week.
Very dry air remains in the low to mid levels of the atmosphere above a very shallow moist boundary layer. The low level flow may be a bit stronger tonight with southerly flow becoming 25-30 knots.
330 AM CDT Mon Mar 20 2017 An upper ridge will remain planted over the the Southern Plains for the next few days, ensuring warm weather across North and Central Texas through mid-week. A limiting factor would be if the low cloud deck which is quickly spreading north lingers longer than expected.
425 AM EDT Mon Mar 20 2017 A weak cold front will pass through tonight and cold air will settle in for the middle of the week.
An upper low well offshore of the nrn CA coast will lift nwd parallel to the coast and weaken while another closed low moves through the srn Gulf of Alaska.
421 AM CDT Mon Mar 20 2017 (Today and Tonight) Look for another extra warm afternoon today, as highs range from the lower 80s south to the mid 90s north.
An area of high pressure will build into the region keeping the forecast area dry tonight and Monday. Cold high pressure centered over east central Saskatchewan will extends its ridge axis through the forecast area Monday night.
301 AM EDT Mon Mar 20 2017 Upper air pattern consists of a 500 mb ridge across the central and southern plains with a broad trough across central Canada skirting the northern plains this morning.
With nothing other than the NAM to indicate this farther shift northward, we will pull our higher pops a little farther north, closer to the NAM,but keep the higher pops in the south for now, as there are some reflectivities developing over northwest SD at this time. High pressure will seep into North Dakota tonight and with a shift to a northerly wind Monday will be cooler with temperatures in the 30s and 40s.
406 AM CDT Mon Mar 20 2017 A surface warm front stretched across south central Arkansas into southern Mississippi will surge northward today across the Mid South. Very warm and humid conditions will develop with highs reaching into the lower to middle 80s. This will help to push a cold front south into northern portions of the forecast area as minor height falls spread over the front by Tuesday afternoon.
Would not be surprised that some areas are receiving a mix though as temperatures aloft cool north to south, especially over the higher terrain of the southwest as we go forward in time through 12Z. High pressure continues to build southward into the Northern Plains tonight bring CAA and clearing. Overnight lows Monday night/Tuesday morning will reach the single digits above north to the lower 20s south. Upper level ridging forecast through mid-week moderating our temperatures.
327 AM CDT Mon Mar 20 2017 As of 3 AM, a warm front was analyzed in a north/south fashion right along the U. This front will lift to the northeast this morning as low pressure slowly moves east across northern Missouri. Areas of the eastern Ozarks should see highs in the lower 80s. By late this afternoon, a cold front will begin to make its way towards central Missouri.
506 AM EDT Mon Mar 20 2017 High pressure will remain over the region today. A cold front will cross the region Tuesday.
Temps will also remain above normal as warm air advection will not end until a short wave trough moves in late Tuesday. This same trough will help increase instability.
Readings have pushed into the the lower 70s over parts of central SD, with mid 60s as far east as Aberdeen. Monday will be much cooler behind the passing cold front. A transition in the upper level pattern will occur as a west coast ridge shifts eastward over the central US by mid week.
409 AM EDT Mon Mar 20 2017 A weak cold front will pass through tonight and cold air will settle in for the middle of the week.
The better chance for showers and a few storms in the short term period will come Monday night as a cold front sinks south across the lower Ohio Valley. As for temperatures, the coldest temps tonight will be across east central KY closer to the departing high pressure and where clouds will move in the latest. Lows there will drop into the lower to mid 30s. With the return to southerly flow tomorrow, highs will reach into the lower 60s in the Bluegrass to the upper 60s to lower 70s along and west of I-65. Tomorrow night will be much warmer in the mid 40s to mid 50s.
640 AM EDT Mon Mar 20 2017 High pressure will move SE off the coast this afternoon. A lead wave of low pressure and preceding warm front will cross the southern Middle Atlantic states tonight.
Initial cold front has settled south over the fa with cooler conds the result today as most places will see 50s for highs. Another upper trough will affect the region tonight, with rain and snow likely over most of the area. Deep upper trough advancing across southern Canada will eventually force cp back into the fa tonight as the next system arrives. Given ll thermal structure with warm nosing aloft, a wintry mix will be possible and have added a mention of freezing rain, mainly on the SD plains with some light icing possible.
A low pressure system will bring chances for rain later tonight into Tuesday evening. Another low pressure system will bring more chances for rain late week into the weekend. /Rest of This Afternoon and Tonight/ As warmer air moves in aloft, clouds are gradually eroding from west to east across central Indiana this afternoon. Mid and high clouds will increase later this evening and overnight ahead of an approaching low pressure system and some upper energy.
340 AM EDT Mon Mar 20 2017 High pressure will move SE off the coast this afternoon. A lead wave of low pressure and preceding warm front will cross the southern Middle Atlantic states tonight.
107 AM EDT Mon Mar 20 2017 A cold front will bring the next chance of rain later on Monday. Passage of that disturbance is forecast to dig the eastern trough further, thus supporting a better cold push across the immediate area. More snow, albeit minor accumulation, is thus possible for the ridges on Tuesday night.
552 AM EDT Mon Mar 20 2017 There will be a chance of rain this afternoon and tonight as cold front crosses the region.
111 AM EDT Mon Mar 20 2017 High pressure will build across the area through Tuesday.
234 AM EDT Mon Mar 20 2017 A ridge of High pressure will build east and crest across the region later today before weakening and sliding offshore. Dry and warmer weather can be expected today, with temperatures moderating to near or above normal for a change. The milder air will stick around through Tuesday before a cold frontal passage ushers well below normal temperatures back into the area for mid week. Low pressure may bring a mixed bag of precipitation over the weekend. A 1028 millibar ridge was draped across the eastern CONUS. This moisture starved boundary may touch off a few snow showers across the higher terrain.
Lows will be a bit warmer tonight, ranging from the upper 40s near the James Valley to 50 to 55 closer to Storm Lake and Spencer Iowa.
749 PM EDT Fri Sep 30 2016 A large upper level low pressure system will lift slowly northeast across the Great Lakes region through the weekend.
A large upper level closed low over Central Kentucky and South Illinois and a ridge of high pressure aloft from Mexico into the Central and Northern Plains will help spread cirrus around 25 kft Southeast around the ridge, while some lower to mostly middle clouds between 6-17 kft rounding the upper low to the East. /issued 222 PM CDT FRI SEP 30 2016/ Deep upper low drifting over southern great lakes area, keeping upper ridge and nw flow aloft, locked in ovhd. As this low begins to move into the New England states, upper ridge begins to flatten out, and temps to warm back to seasonal values. 590 upper ridge rebuilds back in from south tx, thus fairly dry conditions will reestablish to conclude this fcst.
The higher dewpoints may also be a function of proximity to coast and northeast late afternoon winds, but midnight flow turns more northerly and could usher lower 60s dewpoints toward the coast. Surface dewpoints range from the upper 40s across the northern ranchlands to the upper 60s across the lower valley. The lower dewpoints along with the near to above normal temperatures are allowing for a pleasant afternoon. Low temperatures tonight and Saturday night will be in the 60s at most locations, expect for the low 70s near the coast and along the River.
647 PM MDT Fri Sep 30 2016 Today and tomorrow a weak upper trough will be slowly moving east through the weak upper ridge over Colorado. At the surface a low pressure center resides over southeast Colorado. The boundary and the clouds resulted in slightly cooler temperatures today. Saturday night the upper level trough will be centered over the Rocky Mountain Region. with a deep upper level low pressure trough just off the west coast of the United States.
47 The slow (north)eastward movement of the large Ohio River Valley upper low has keep Texas under this dry mid to upper level northwest flow pattern. Upper ridging building up from the south in the wake of this northeastern-exiting upper low into the Great Lakes region over the weekend will maintain nil rain chances and near normal daytime temperature behavior.
The upper level low continues to meander about the Ohio River Valley this afternoon, placing us under continued northwest flow aloft. While high pressure at the sureface will maintain quiet weather across the region through at least Saturday night, the upper low will begin to lift north into the Great Lakes region on Saturday, causing flow aloft over us to become more westerly. Under mostly clear skies tonight, lows will again be chilly as they fall into the low and middle 50s. On Saturday, highs will rebound a degree or two compared to Friday, and will top out in the low and middle 80. Then for Saturday night, lows will also be a bit warmer as they fall mid and upper 50s.
Upper level ridge will result in quiet weather across the region tonight. Concur with deterministic output that the upper ridge will remain quasi-stationary over the Region. maximum temperatures Saturday only slightly warmer.
1146 PM CDT FRI SEP 30 2016 Satellite clearly shows the Low is rotating across the mid Ohio river valley attm. Low clouds will again hang around tonight, even as the Low starts to lift north again, headed back toward the Great Lakes. Tmrw nite, these chances will diminish for good, as the Low finally makes its way back to the Great Lakes.
1003 PM CDT Fri Sep 30 2016 The slow (north)eastward movement of the large Ohio River Valley upper low has keep Texas under this dry mid to upper level northwest flow pattern. Upper ridging building up from the south in the wake of this northeastern-exiting upper low into the Great Lakes region over the weekend will maintain nil rain chances and near normal daytime temperature behavior.
small chance of a shower moving into a small part of west central Wisconsin late tonight into Saturday morning as upper low rotates to the northwest and lifts moisture westward across the area. There are some high clouds moving in from the west and and stratocu moving in from the upper low to the east should preclude widespread fog elsewhere. with temepratures a bit cooler than Friday afternoon. The persistent Upper Low that has been holding steady across the Ohio Valley the last couple of days, will slowly fill and lift northeast across the Great Lakes by late in the weekend.
Cooler drier air spreading across the area tonight.