Aikyam-Lab/Synoptic-Bench huggingface dataset:
1018 PM EDT Sun Sep 10 2017 High pressure centered over the eastern Great Lakes will gradually weaken through the day on Monday. Lows tonight will be in the mid 40s nw to the lower 50s southeast. The models are in general agreement taking the center of the low associated with Irma into northern Georgia/Alabama through Monday night. Generally expect highs on Monday to be in the lower 70s across the area.
High pressure will keep Mid TN taf sites with VFR through the night, as high clouds from Hurricane Irma spread across the area.
Otherwise dry and warmer conditions expected across the area through mid week as zonal flow aloft persists over the area with downsloping winds.
902 PM EDT Sun Sep 10 2017 High pressure will build north of the area through Monday.
Another clear and cool night ahead for central IL, thanks to 1031 mb high pressure anchored over southeast Ontario and ridging sw into IL/MO. High pressure across Illinois will steadily weaken in the short term, as the remnants of Irma advance into western Georgia by 00z/7pm Monday. Slightly cooler temps in the mid 70s are expected in our NE area, toward Danville/Hoopeston.
Clear skies will continue tnt-Mon Nt as strong high pressure remains centered over the ern Great Lakes with a dry flow into srn WI. There is a low pressure trough over the Northern Plains that will slide northeast tonight. The tighter pressure gradient between that trough and high pressure stationed over the Great Lakes is leading to steady southeasterly winds each day over southern WI. The clouds and weather associated with this trough should remain to the northwest of us. Monday will feature weather very similar to today, except highs will be a little warmer.
High pressure will continue to dominate the areas weather with dry conditions tonight and light winds. Overnight low temperatures will fall into the 50s except into the 30s across the higher elevations.
As we go into the second half of the week into the weekend, will see some weak upper level ridging build over the southern Plains. This should result in warmer temperatures.
Expect VFR conditions to continue throughout the next 24 hours as high pressure remains in control. Very dry air mass will continue over South Texas through the period with the upper level ridge axis remaining to our west.
N winds should stay below Lake Wind Advisory criteria, but should result in slightly cooler temps than what was observed this afternoon.
The Rocky Mountain ridge of high pressure will rebound and re-assert itself to bring high temperatures to northeast Montana back into the 90s and no chance of rain.
The high will be lifting out of the area overnight with the remnants of Irma approaching from the south.
807 PM CDT Sun Sep 10 2017 Similar to last night, surface ridging remains in place from the Great Lakes and Northeast to Oklahoma. Dry northerly flow aloft prevails on the western side of an upper trough over the Southeast, which is also picking up Hurricane Irma. Lee trough has set up over the High Plains today, with stronger southerly winds across portions of Kansas/western Oklahoma.
612 PM CDT Sun Sep 10 2017 Upper trough of low pressure will continue to nudge eastward this evening and will be east of our zones by early evening. 850mb temperatures are very warm, so there really is no cooler air associated behind the wind shift in our northern zones. Ridging aloft will take hold through middle of the week, retreating stronger flow to the north. Zonal flow aloft will certainly keep a trajectory for smoke alive and well this week, in proximity to deformation upstream of eastern troughing with weakening remnants of Irma.
Tonight and Monday The latest RAP analysis and satellite/radar imagery show high pressure centered over the central Great Lakes. Warmer lows with a light south wind, with readings ranging from the mid 40s to low 50s. Then a weak cold front will move across northwest WI in the afternoon. But the southerly winds will continue to bring in warmer temps. Highs ranging from the low to middle 70s. Monday Night Through Sunday An upper level ridge from the southwestern states to the western Great Lakes will keep dry and mild weather in central and northern Wisconsin through much or all of this week.
Strong High pressure over the Great Lakes will continue to provide dry and Cool weather through Monday evening. The high is expected to exit the area overnight on Monday.
Otherwise, the ridge of high pressure will remain the primary influence over Iowa tonight and into Monday with dry weather and similar temperatures to the past several days with lows tonight in the lower 50s east to around 60 west and highs Monday in the low to mid 80s.
Drier air moving in from the south tonight as the upper level ridge rebuilds over the intermountain west.
655 PM CDT Sun Sep 10 2017 High pressure across Illinois will steadily weaken in the short term, as the remnants of Irma advance into western Georgia by 00z/7pm Monday. Slightly cooler temps in the mid 70s are expected in our NE area, toward Danville/Hoopeston.
Lee trough has set up over the High Plains today, with stronger southerly winds across portions of Kansas/western Oklahoma.
The closed mid/upper level low pressure is currently located over the northern plains and upper Midwest. The associated trough axis extends to the south-southwest with the southern most portion over southern NE. Therefore patchy ground fog will be possible around sunrise especially in the low lying areas across eastern KS.
Dry weather conditions will continue the rest of Sunday and for Monday, as high pressure will dominate the weather pattern.
/issued 342 PM CDT Sun Sep 10 2017/ An upper level trough is located from the Midwest down into the Northwest Gulf of Mexico. This trough is steering Hurricane Irma into the Southwest Florida coast.
907 PM EDT Sun Sep 10 2017 High pressure will maintain dry conditions through the start of the week before rain chances return with approaching low pressure. Fries Dy conditions under high pressure will continue through much of Monday and Monday night, with only high clouds increasing in advance of the remnants of Irma late.
722 PM EDT Sun Sep 10 2017 A strong ridge of high pressure continues to hold on today across the Ohio Valley, with a large amount of dry air in place. The center of low pressure associated with the hurricane is forecast to move into northern Florida and southwest Georgia tomorrow afternoon, and eastern Alabama overnight Monday night. However, the amount of clouds and rain will keep near surface temps quite cool Monday night, warming quickly in the mid levels as winds feed into warmer air. As such, there could still be some higher winds that mix down even in the lowest levels, so did up increasing winds and gusts a bit across the CWA.
Storms appear to be collapsing as they drift to the north- northeast under a south-southwest flow, thanks to a high pressure ridge to our east. Most activity is expected to wind down late this evening with some isolated showers continuing overnight as a stretching deformation zone works over the area as the high begins to shift back to the west. This should maintain the threat for afternoon showers and storms over the higher terrain. The remnants of Hurricane Irma will be moving through the southeastern states, helping to push the ridge of high pressure further west with the closed low off the California coast retrograding to the west as well.
Issued by National Weather Service AUSTIN/SAN ANTONIO TX 1148 PM EDT Sun Sep 10 2017 An upper level trough is evident on water vapor satellite imagery to the northwest of Hurricane Irma.
804 PM EDT Sun Sep 10 2017 Mostly dry weather and warming temperatures expected throughout the work week as high pressure continues to build into the area. High pressure continues to build ewd from the Great Lakes and sern Ontario this evening. It will be cooler overnight, as temperatures fall into the mid 30s in the high terrain to mid 40s elsewhere. Monday night will see potential for fog development again as high pressure continues to provide light to calm winds and clear skies. Min temperatures expected to be a couple degrees warmer as the ridge axis begins to shift slightly east, with warming aloft. Day #2 of "high and dry" thanks to high pressure at all levels. Given the warm temperatures aloft, I did trend toward the warmer guidance options, but still may end up being a few degrees too cool.
Otherwise weak cold front should reach the far nw FA this evening clearing the area by morning. Thermal ridge axis crosses the fa overnight so most areas will remain mild. Some drier/cooler air reaches the far nw aft midnight so coolest temperatures there. Column does not cool significantly tomorrow but much lower dewpoints will spread across the region as high pressure builds in. An upper level ridge will be centered over the four-corners region on Monday evening, with an upper low just off the CA coast and the remnants of hurricane Irma over AL/GA. A nearly zonal flow aloft will exist across southern Canada, with a trough coming onshore on the BC coast. At the surface, high pressure will be drifting east across central MN while a low develops in the lee of the Canadian Rockies.
An area of low pressure is currently located over Saskatchewan with a cold front along the western Dakotas. An are of high pressure will slide across North Dakota on Monday with winds shifting to the northeast. The core of this high pressure is very dry with dew points dropping into the 40s and 50s by the afternoon hours.
Warmer air will move into the Great Lakes and moisture will move north with the remnants of Irma. High pressure will continue to control our weather through the period.
1154 PM EDT Sun Sep 10 2017 High pressure moves off the New England coast Monday.
Storms firing over the nrn Front range in the vicinity of this wave forced air have been slow to move off the high terrain. Cloud bases on the high side, roughly near 14k ft MSL and ongoing glaciation of these eastward moving cells setting the stage for gusty downburst winds rest of this afternoon and early evening. upper high centered over Colorado to start the day is forecast shift southwest over the 4-corners area. As mentioned, highs tomorrow a few degs cooler but still several degs above the average for this time of year. An upper ridge is over Colorado Monday night with weak northwesterly flow aloft.
709 PM EDT Sun Sep 10 2017 High pressure will maintain dry conditions through the start of the week before rain chances return with approaching low pressure. This will generally preclude frost in essentially all of the area, yet light winds and high pressure will continue to allow for local fog development. Fries Dy conditions under high pressure will continue through much of Monday and Monday night, with only high clouds increasing in advance of the remnants of Irma late.
Will struggle to get anything other than surface saturation, but some of the higher res models indicate it may difficult to reach that. Slightly warmer temperatures throughout the day will mean a further fall of overnight as well.
High pressure at the surface and aloft will give dry and warming conditions to the area through Monday.
Early on in the period the main feature of note affecting western NEB is an upper level ridge that will be in place across the Southwest US early Monday night extending into the Northern Intermountain West and the Middle Missouri Valley. Elsewhere, a deep 500 hPa low is expected to be located near GA/AL and another closed low is expected to be west of southern CA in the Pacific offshore waters.
808 PM EDT Sun Sep 10 2017 High pressure centered over the eastern Great Lakes will gradually weaken through the day on Monday. The models are in general agreement taking the center of the low associated with Irma into northern Georgia/Alabama through Monday night. Generally expect highs on Monday to be in the lower 70s across the area.
612 PM CDT Sun Sep 10 2017 142 PM CDT High pressure to continue influencing the weather across the region, with quiet/dry weather expected through the period.
Dry air moving into the region will end rain chances starting Monday while also bringing warmer temperatures through the middle of this week. Upper low off the California coast continues to drift southwestward, giving way to a building ridge across the southern Rockies and height rises across the Desert Southwest. Latest satellite imagery shows scattered CU dotting the higher terrain of the region, though vertical development has been stymied by the presence of weak lapse rates associated with warming in the mid-levels.
Dry high pressure over the Great Lakes will continue to extend into Middle Tennessee with nice VFR conditions through tonight.
/Issued 807 PM CDT Sun Sep 10 2017/ Similar to last night, surface ridging remains in place from the Great Lakes and Northeast to Oklahoma. Dry northerly flow aloft prevails on the western side of an upper trough over the Southeast, which is also picking up Hurricane Irma. Lee trough has set up over the High Plains today, with stronger southerly winds across portions of Kansas/western Oklahoma.
High pressure over the Great Lakes will keep fueling dry and pleasant air into the CWA this afternoon and tonight.
Gosselin High pressure centered over the Great Lakes region and stretching to the southwest across Illinois and Missouri will move little the next 24 to 30 hours. A clear sky will allow for good cooling tonight so have trended low temperatures to the low side of guidance.
1214 AM EDT Mon Sep 11 2017 High pressure will maintain dry conditions through the start of the week before rain chances return with approaching low pressure. Mainly clear skies are expected overnight under high pressure. Dy conditions under high pressure will continue through much of Monday and Monday night, with only high clouds increasing in advance of the remnants of Irma late.
No significant changes seen across the CWA over the next couple days with an upper high pressure area being the main weather factor for the region.
1043 PM CDT Sun Sep 10 2017 Upper trough of low pressure will continue to nudge eastward this evening and will be east of our zones by early evening. 850mb temperatures are very warm, so there really is no cooler air associated behind the wind shift in our northern zones. Ridging aloft will take hold through middle of the week, retreating stronger flow to the north. Zonal flow aloft will certainly keep a trajectory for smoke alive and well this week, in proximity to deformation upstream of eastern troughing with weakening remnants of Irma.
/issued 349 PM CDT Sun Sep 10 2017/ (Tonight and Monday) An upper level ridge centered over Colorado will continue to dominate the weather across West Central Texas. Ideal radiational cooling conditions are once again forecast overnight, with lows dropping into the mid to upper 50s for most locations, although a few low lying areas may drop into the lower 50s.
629 PM CDT Sun Sep 10 2017 High pressure over Texas will keep conditions VFR at all the area airports through this period.
An area of high pressure across the Great Lakes remain in control of the weather across eastern KY. Therefore, did adjust the SKY grid to better match the overall coverage of the high clouds. A strong ridge of high pressure continues to hold on today across the Ohio Valley, with a large amount of dry air in place. The center of low pressure associated with the hurricane is forecast to move into northern Florida and southwest Georgia tomorrow afternoon, and eastern Alabama overnight Monday night. However, the amount of clouds and rain will keep near surface temps quite cool Monday night, warming quickly in the mid levels as winds feed into warmer air. As such, there could still be some higher winds that mix down even in the lowest levels, so did up increasing winds and gusts a bit across the CWA.
700 PM CDT Sun Sep 10 2017 Cold front continues to push southeast across central ND. A cold front currently stretching from Sherwood south to Glen Ullin and into central South Dakota will continue moving east this afternoon, clearing the James River valley shortly after 06z Monday. Quite a density gradient as dewpoints are in the lower 60s ahead of the front, with mid and upper 40s coming in behind the front. Although there could be a brief, isolated shower, the high resolution models are scarce in terms of any significant reflectivity's associated with the front through this evening. With plenty of dry air in the lower levels, will go along with that idea and keep the forecast dry. Behind the cold front, smoke/haze evident across the west per surface observations.
High pressure will remain over the area for the early part of the week. A series of storm systems will bring cooler and wetter conditions to Utah and southwest Wyoming for the middle to latter part of the work week before drier conditions return for the upcoming weekend. Much of Utah remains under the western periphery of a dome of high pressure which is centered over Colorado this evening. Weak flow aloft is in place as a result, but some lingering moisture remains trapped underneath this ridge. Meanwhile, upstream, an upper low remains in place off the southern California coast. The moisture generated some weak convection today over mainly the higher terrain.
/Issued 321 PM CDT Sun Sep 10 2017/ /Monday through Sunday/ Tranquil weather is expected across the region on Monday as we remain sandwiched between Irma to our east and an upper level ridge to our west.
A moisture axis allowing the low/mid level cloudiness. is sourcing from the eastern resulting from surface ridging east and a building trough in the southern Rockies. clearing over the area for many locales tonight will afford the region overnight lows ranging from the upper 40s into the lower 50s.
High pressure will continue to extend across the area tonight through Sunday, resulting in dry weather with temperatures and humidity levels lower than normal.
1257 AM EDT Sun Jun 25 2017 Late night obs show ridge/valley differences of several degrees, and the forecast has been updated to account for this. Cooler and drier air continues to invade the region in the wake of the cold frontal passage last night. A reinforcing shot of cool air will occur Sunday night as another cold front moves across the area.
Ridge axis still overhead bringing a light flow to the area with winds coming out of the south to southeast.
High pressure aloft will bring one more very warm day to Western Washington on Sunday.
706 PM EDT Sat Jun 24 2017 A cold front has moved through all the TAF sites in the past hour, bringing drier air to the area.
With high pressure around through the weekend, tranquil weather with below normal temperatures will continue tonight into Sunday.
639 PM CDT Sat Jun 24 2017 VFR conditions are expected through the period as weak high pressure is located to the north.
an upper level ridge of high pressure will build over the region.
Tonight and Sunday Expect the majority of the showers and scattered thunderstorms, that were across northeast Wisconsin this afternoon, to diminish as a cold front passes and the sun sets. Models showed a 500 mb ridge moving though the area Sunday morning before the next 500 mb trough moves in later in the day so activity should increase later in the day. Cooler than normal conditions will prevail tonight and highs on Sunday will be at least 10 degrees below normal at most locations. Sunday Night Through Saturday Upper mean flow over CONUS still expected to transition from the large mean trough over eastern half of the U. with ridge over over the far west to a more zonal pattern.
through Sunday, with an expansive and broad mid-level trough stretched across much of the north central and northeastern CONUS. Temperatures will remain cooler than normal with lows tonight in the 50s and afternoon high temperatures on Sunday in the upper 70s/near 80.
High pressure builds into central SD late tonight which will lead towards another morning of very cool readings.
Storm chances increase late in the week with upper trough ejecting out onto the northern plains.
1146 PM CDT Sat Jun 24 2017 Long wave trough positioned over eastern North America will dominate the sensible weather across the region through the short term.
This evening, chances will begin to wind down but will maintain slight chances across the north as a weak cold front sags into southern AL/GA by sunrise Sunday.
940 PM EDT Sat Jun 24 2017 A cold front will push southeastward into central North Carolina tonight.
1124 PM EDT Sat Jun 24 2017 Upper low pressure will maintain cooler temperature and periodic shower chances for the first half of the week. The midnight update featured adjustments to hourly trends of POPs and Sky cover based on the latest radar and satellite data as showers with a reinforcing cold front continue over the I 80 corridor.
In addition, models bring another mid-level trough through. Otherwise, plan on significantly cooler than normal highs Sunday only in the 60s with lows Sunday night in the middle 40s to near 50.
Lows tonight will remain on the cool side from the low to mid 40s north central, where skies will remain clear to partly cloudy, with mid 40s to near 50 southwest, where cloudy skies develop. For Sunday night, a warm front at 850 mb will lift northeast in conjunction with a weak disturbance in northwest flow aloft.
Lows in this area will be in the lower 40s. with northwest flow aloft and high pressure at the surface moving into the region.
In its wake, high pressure continues to slowly build across north Alabama with light northerly flow and dewpoints in the lower to middle 60s. The forecast area will remain beneath a broad cyclonic flow regime on Sunday/Sunday night, although mid-level winds are expected to veer more to the west-northwest as the subtropical ridge weakens and retreats to the east while the Great Lakes vort max dampens and ejects northeastward into New England. At the surface, a reinforcing dome of high pressure will build southeastward across the Great Plains on Sunday. and this should translate to high temps a few degrees cooler than those observed today.
Some of the stronger storms, although weak considering late June, produced up to half inch hail due to freezing levels of 5-7k. In eastern Minnesota, and west central Wisconsin, the remnants of the upper low moving slowly eastward over the Great Lakes, will continue to generate a few afternoon/early evening showers/storms Sunday. Where the showers will be more persistent, highs will only be in the low to mid 60s.
Lows in the low to mid 50s overnight expected with a few upper 40s possible be Galesburg/Knox county.
739 PM EDT Sat Jun 24 2017 Cooler and drier air continues to invade the region in the wake of the cold frontal passage last night. A reinforcing shot of cool air will occur Sunday night as another cold front moves across the area.
949 PM MDT Sat Jun 24 2017 Northwest flow continues across the northern Plains today as the broad trough drifts eastward over the MS valley. Upper ridging is building across the western third of the CONUS. Northwest flow will persist into Sunday along with cooler temps. although warmer than today.
/Issued 343 PM CDT Sat Jun 24 2017/ Temps this afternoon are hovering in the mid to upper 60s in the southwest CWA and in the lower 80s in the northeast CWA. The mostly broken to overcast cloud cover in response to the cold front is the responsible party for these below normal temps. The northeast has seen a break in the clouds; thus the higher temps. After the ridge moves away, zonal flow will set in for mid-week, but it will be short lived as an upper level trough tries to push its way south out of western Canada. The end of the work week will see a chance for precip to return as ridging tries to build back into the western CONUS, creating northwest flow again for the area.
An upper trough is currently located offshore along 130W.
Showers and thunderstorms will be most concentrated over the Coastal Prairies through the early evening after a strong morning outflow brought a portion of the cold front through the area. Rain chances should continue into daytime Sunday with the mid-level ridging feature continuing to break down to the west.