Aikyam-Lab/Synoptic-Bench huggingface dataset:
1002 PM CDT Fri Sep 10 2021 A warmer, more summer-like day to kick off the weekend Saturday with a west/southwest push of warm air ahead of approaching cold front to the northwest. The cold front looks to drop through in the late afternoon, early evening hours. Not expecting much/any convection to spark along the boundary during the day, but some chances in the evening as the low level jet ramps up. Sunday will be cooler with the front sagging south, laying up across southern IA/central IL. Highs roughly 10 to 15 degrees cooler than Sat.
233 AM EDT Sat Sep 11 2021 High pressure will bring dry weather with warmer temperatures each day through the weekend and into the next work week. Southerly flow will bring warmer air into the area, which should allow afternoon temperatures to rise into the low to mid 80s in the lowlands and mid 60s to upper 70s in the mountains. Quiet weather continues into tonight as upper level ridging builds into the area from the west. Overnight temperatures are expected to lower into the upper 50s to low 60s in the lowlands and upper 40s to mid 50s in the mountains. A high pressure system will slowly slide eastward across the area over the weekend and into the next work week.
/NEW/ /Through Tonight/ An upper ridge will remain in control of our weather locally through the short term period with seasonably hot and dry conditions again today. While hazy skies are still possible at times, the northwesterly fetch will be shut down by the elongating ridge axis with a transition to light easterly flow aloft occurring by this evening. The dry air will heat up quickly into the low/mid 90s this afternoon, but favorable cooling conditions will allow overnight lows to dip mostly in the 60s or upper 50s.
1144 PM EDT Fri Sep 10 2021 High pressure will provide mostly dry weather through the weekend with a warming trend. Low temperatures will dip into the low 50s and upper 40s by sunrise. A broad upper ridge will become more firmly established across the lower Mississippi Valley and southeast CONUS this weekend.
252 AM CDT Sat Sep 11 2021 An area of low pressure and cold front will slide across the area today. High temperatures will be cooler, with readings in the 70s and low 80s. A strong trough currently over the Pac NW will move across the area later tonight. Models suggest the trough will weaken considerable by this evening, with mostly a broad trough moving through with a high pressure at the surface.
For today, weak ridging will build across the area.
1129 PM MDT Fri Sep 10 2021 Current conditions show only a few cumulus clouds over the higher elevations in this very dry airmass. With the upper level high pressure centered over the central Rockies currently, there has also been very little wind. The high gradually shifts to the east Saturday with increasing west to southwest flow and a few weak disturbances moving through the flow. High temperatures Saturday will only be a few degrees cooler than today's high temperatures.
/DL/ Another night of clear skies, a near calm wind, and strong radiational cooling will lead to cooler than normal morning temperatures. High pressure aloft and at the surface will remain in control of our weather as we move into the weekend. The cooler drier air mass over the forecast area, will again result in a fall-like feel to the air tonight into Saturday morning, as lows fall into the upper 50s and lower 60s.
Moving on, The upper high will be building eastward across the mid state over the next 24 to 36 hours.
(Today and tonight) Hazy sunshine expected again today with plenty of elevated smoke trapped on eastern periphery of NM centered upper level ridge. Lee troughing will also be in play with increasing cross-mountain flow increasing ahead of upstream NW U. trough.
High temperatures Saturday will be in the lower to middle 80s and reach the upper 80s to lower 90s on Sunday.
The ridge aloft centered over Colorado and New Mexico is forecast to gradually flatten today and tonight with the mid level flow across South Central Texas becoming more easterly and the low level flow southeasterly. A deeper surge of moisture, on the leading edge of an inverted trough, arrives into southern and eastern counties Sunday afternoon. We will continue to forecast closer to the warmer guidance for highs today.
Early this morning an amplified upper level ridge was centered across NM and extended northward along the lee slope of the central Rockies.
However, by midday, a mostly sunny sky is expected as the trough departs and fog lifts. As southwesterly return flow starts to pick up this afternoon behind departing high pressure, warm advection will help push high temperatures about five degrees warmer than yesterday's readings. The warming trend will be most notable tonight, however, as increasing humidity, cloud cover, and warm advection keep overnight lows 10+ degrees warmer than this morning. Broad upper ridging will become more firmly established across the lower Miss.
1008 AM EDT Sat Sep 11 2021 High pressure will bring dry weather with warmer temperatures each day through the weekend and into the next work week. Southerly flow will bring warmer air into the area, which should allow afternoon temperatures to rise into the low to mid 80s in the lowlands and mid 60s to upper 70s in the mountains. Quiet weather continues into tonight as upper level ridging builds into the area from the west. Overnight temperatures are expected to lower into the upper 50s to low 60s in the lowlands and upper 40s to mid 50s in the mountains. A high pressure system will slowly slide eastward across the area over the weekend and into the next work week.
High pressure was well east of the region early this morning with a warm front/trough lifting into the southwest portion of the CWA. Max heat indices will reach into the lower and middle 90s.
Ridge of high pressure builds in today, bringing warmer temperatures and dry conditions to the region.
Today, a weak cold front will slowly sag southward from Wyoming and this boundary will be the focus of the convection today. Temperatures will remain on the warm to hot side of things though they will be about 5 degrees cooler than what we've seen lately.
646 AM EDT Sat Sep 11 2021 High pressure will bring dry weather with warmer temperatures each day through the weekend and into the next work week. Southerly flow will bring warmer air into the area, which should allow afternoon temperatures to rise into the low to mid 80s in the lowlands and mid 60s to upper 70s in the mountains. Quiet weather continues into tonight as upper level ridging builds into the area from the west. Overnight temperatures are expected to lower into the upper 50s to low 60s in the lowlands and upper 40s to mid 50s in the mountains. A high pressure system will slowly slide eastward across the area over the weekend and into the next work week.
As mid level ridging builds in more and with full sunshine abounding, temps will be a bit warmer during the daytime though still seasonable.
An upper trough will continue to shift east today, as a broad upper ridge builds over the central US. As this trough shifts east, winds will begin to veer more to the south/southwest and moisture quantity will gradually begin to increase over the area.
That will continue to shift south and dissipate as high pressure builds into the area from the northeast and easterly flow establishes across the area today and tonight. High pressure will be building into the waters from the north and easterly flow will be establishing today and tonight.
/Issued 342 AM EDT Sat Sep 11 2021/ A weak upper trough will move into the Carolinas by this evening and by Sunday upper level high pressure will build into the area.
Next, temperatures will trend cooler to seasonal norms.
A weaker NE-SW oriented cold front has washed out just north of the forecast area and will sag south across the region today. Smoke aloft should dissipate some on Sunday, and increased cloudiness and cooler post frontal air will make for a much cooler day.
East to east-southeast winds will strengthen to 5-10kts during the day with upper high pressure shifting away from the area.
337 AM MDT Sat Sep 11 2021 In advance of an approaching low pressure trough from the northwest today, scattered light rain showers are already spreading through most northeast Montana locations early this morning. After sunrise, the main piece of energy and the upper level trough axis will sweep through central Montana. Sunday, brief weak upper level ridging will bring dry weather and comfortable temperatures.
The sounding also revealed rising heights, indicative of a ridge building across the Atlantic and into the Southeast. A strong ridge of high pressure will continue to build across the Atlantic, with the axis penetrating the southeastern United States by tonight. A possible tropical disturbance will move well to our east by mid- week, pushing the ridge axis to the north and putting the Florida Keys in an area of weaker flow.
The dominate feature though is large high pressure dome in control over the western and central CONUS. At the surface, a cold front extended along the ND/Canadian border. Models seem to be in rather good agreement the aforementioned cold front currently to the north will drift southward through the Dakotas and reach the northern CWA early this evening.
641 AM EDT Sat Sep 11 2021 High pressure and with drier air across the region will remain in place through the weekend. A ridge of high pressure will continue the relatively cool and dry conditions again for Saturday. So overnight lows Sunday morning will be a few degrees warmer than Saturday but still falling into the low 60s with dry air in place at mid-upper levels still. The dry weather continues through the short term courtesy of strong upper-level ridging. Sunday is a bit warmer and muggier than Saturday with highs in the upper eighties to near ninety. Low temperatures Sunday night should be in the lower sixties.
647 AM CDT Sat Sep 11 2021 The cold front has completely pushed through our CWA and winds have backed off as expected. Early this morning winds are gusting to 40 mph behind a cold front, but this should end by sunrise. The cold front is already in the southern RRV early this morning, and peak pressure rises should drop off limit further gusts. Regarding temperatures: Surface-850 MB flow tends to remain northerly or easterly, keeping a cooler air mass in place. More expansive cloud cover increases the potential for temperatures to fall on the lower end of those ranges. Light winds and this cooler air mass should support lows in the 40s to lower 50s (coldest locations may fall to near 40 under clear skies).
An area of low pressure and cold front will slide across the area today. High temperatures will be cooler, with readings in the 70s and low 80s. A strong trough currently over the Pac NW will move across the area later tonight. Models suggest the trough will weaken considerable by this evening, with mostly a broad trough moving through with a high pressure at the surface.
956 AM EDT Sat Sep 11 2021 High pressure will bring sunny and dry weather over the weekend.
610 AM CDT Sat Sep 11 2021 (Today and tonight) Hazy sunshine expected again today with plenty of elevated smoke trapped on eastern periphery of NM centered upper level ridge. Lee troughing will also be in play with increasing cross-mountain flow increasing ahead of upstream NW U. trough.
A cold front was bisecting the Northland early this morning as was near the Twin Ports as of 0930z per the KDLH radar and surface observations. Breezy northwesterly winds will be seen across the region today in the wake of the cold front before high pressure builds in for tonight and Sunday. CAMs continue to want to bring some shower activity across northern Minnesota tonight ahead of the high, but dry air evident in forecast soundings will be in place across the region.
Moisture will continue to increase from east to west Sunday as an inverted trough approaches South Texas, with PWATS near 2 inches by Sunday night along the coast and 1. Highs today are expected to near 100 degrees over the Brush Country, but Sunday's highs should remain in the low to mid-90s.
611 AM CDT Sat Sep 11 2021 Upper level ridging continues to build across the region today. In the meantime, west to southwest low level jet is still progged to advect in warmer 850mb temps, between 20 and 25C today. Little change on Sunday with another well above normal day with highs in the low to mid 90s. Thus dewpoints will be in the low to mid 60s today and tomorrow, so do not expect excessive heat and humidity through the weekend.
1037 AM EDT Sat Sep 11 2021 High pressure is currently centered across the Middle Atlantic with a ridge extending all the way to the Lower Mississippi River Valley. The SW corner of the CWA lies in the base of a 500mb trough. An upper low is also noted across the northern FL peninsula. /Issued 342 AM EDT Sat Sep 11 2021/ A weak upper trough will move into the Carolinas by this evening and by Sunday upper level high pressure will build into the area.
627 AM CDT Sat Sep 11 2021 A strong mid and upper level ridge remains in place over the region for the short term. HRRR vertical integrated smoke model shows the main area of smoke aloft will push off to the east some which will allow for temperatures today to get a little warmer than yesterday.
444 AM MDT Sat Sep 11 2021 Current surface map places cold front across northeast Wyoming/western South Dakota. Cold front stalls out over northeast Wyoming while remainder of front slips into Nebraska this morning.
Mid level trough over the northern half CWA will deform today, leaving a col over the area thought tonight.
632 AM CDT Sat Sep 11 2021 (Today and tonight) Upper level ridge of high pressure remains the dominant weather story in the short term.
An upper trough will continue to slide southeast of the area today. Highs will reach the middle 80s for most valley areas today, with upper 80s in the Shoals possible, and upper 70s to around 80 atop the higher Plateaus/Mountains.
Thereafter, mainly clear skies should prevail as high pressure remains in control. Otherwise, as a ridge of high pressure builds east from the Plains, expect temperatures to rise to more summerlike readings through the near term.
Highs tomorrow will top out in the lower to middle 90s for most areas. Rain chances will be in the same areas tomorrow night with the higher chances near the coast, but overall not expecting much in the way of widespread activity. Lows will return to the lower 70s for most areas.
131 PM EDT Sat Sep 11 2021 High pressure will bring dry weather with warmer temperatures each day through the weekend and into the next work week. Temperatures today will rise to around normal in the upper 70s to 80s across the lowlands this afternoon and mid 60s to 70s for the higher elevations. High temperatures in the mid to upper 80s are expected across the lowlands with a few areas potentially reaching into the lower 90s. The mountains will have temperatures in the low 70s to mid 80s. A high pressure system will slowly slide eastward across the area over the weekend and into the next work week. Ridge continues to hold across eastern U. VFR conditions prevail for much of the period with high pressure in place over the area.
/Issued 1037 AM EDT Sat Sep 11 2021/ High pressure is currently centered across the Middle Atlantic with a ridge extending all the way to the Lower Mississippi River Valley. The SW corner of the CWA lies in the base of a 500mb trough. An upper low is also noted across the northern FL peninsula. /Issued 342 AM EDT Sat Sep 11 2021/ A weak upper trough will move into the Carolinas by this evening and by Sunday upper level high pressure will build into the area.
The cold front has completely pushed through our CWA and winds have backed off as expected. Early this morning winds are gusting to 40 mph behind a cold front, but this should end by sunrise. The cold front is already in the southern RRV early this morning, and peak pressure rises should drop off limit further gusts. Regarding temperatures: Surface-850 MB flow tends to remain northerly or easterly, keeping a cooler air mass in place. More expansive cloud cover increases the potential for temperatures to fall on the lower end of those ranges. Light winds and this cooler air mass should support lows in the 40s to lower 50s (coldest locations may fall to near 40 under clear skies).
Our position on the eastern edge of ridging centered over New Mexico places us in the path of more wildfire smoke from the Pacific Northwest, with column-integrated smoke models estimating about 20-40 micrograms per cubic meter aloft.
Temperatures are on trend to rise into the low to mid 80s this afternoon.
Gusty south to southwest winds over 30 mph will help to aid in this warmup due to downsloping warming of the low level flow.
Increased sunshine will help boost temperatures into the lower 80s, and perhaps locally into the mid 80s late in the afternoon. Aside from some smoke aloft filtering into the region during the short term period, another quiet period is on tap as southwesterly flow ushers in gradually warmer and more humid air tonight into Sunday. Lows tonight will be warmer than has been the case the past several nights, especially with the arrival of better sfc moisture which will keep temps generally in the low/mid 60s.
Tonight and Sunday The latest RAP analysis and satellite/radar imagery show a cold front stretching across west-central to far northeast Wisconsin early this afternoon. As a result of poor low level lapse rates, the shower and storm threat looks low enough to remove from the forecast for all areas except for far NE WI where moisture convergence is the highest and cu looks the most bubbly. The cold front will continue to slowly move south where it will stall across southern Wisconsin. Cooler temperatures are expected due to northeast winds, with lows ranging from the upper 40s north to low 60s south. Cooler highs in the upper 60s to low 70s.
Mid clouds will continue to move through the CWA through late this afternoon, with afternoon temperatures generally rising into the lower 80s. In addition, due to the influence of the ridge, the warming trend will continue. Westerlies settle into the Great Lakes this weekend with mid level ridge stretching from the Southeast U.
An upper level ridge centered near northeastern New Mexico will move very little, and remain the main influence on our weather for tonight into Sunday. Tonight's lows should be similar to the last couple nights, dropping into the low to mid 60s, with a few upper 50s possible in our valley areas. The latest CPC 6-10 outlook has above normal temperatures for mid September due to an upper level high pressure ridge building across Texas.
213 PM CDT Sat Sep 11 2021 As of 2pm, a cold front is evident on surface analysis just edging into northwestern portions of the forecast area. With relatively dry air in the low to mid-levels, I expect this activity to be pretty-high based and many locations will not receive anything measurable. The cold front will push through most of the area by Sunday morning, but confidence is increasing that it will stall out in our northern Kansas.
An expanding upper level ridge will keep conditions dry and quite warm for mid September, with highs getting into the upper 80s to around 90.
The low-level temperature profile does not appear to be as warm tomorrow as today, so even with significant mixing, high temperatures are expected to be a couple of degrees lower than today.
135 PM PDT Sat Sep 11 2021 Expanding high pressure over the desert southwest will result in warm weather over the next couple of days with dry conditions across Southern California. Troughing to the north will suppress the area of high pressure as we get into the work week, leading to a cooling trend.
151 PM EDT Sat Sep 11 2021 High pressure will bring dry weather with warmer temperatures each day through the weekend and into the next work week. Temperatures today will rise to around normal in the upper 70s to 80s across the lowlands this afternoon and mid 60s to 70s for the higher elevations. High temperatures in the mid to upper 80s are expected across the lowlands with a few areas potentially reaching into the lower 90s. The mountains will have temperatures in the low 70s to mid 80s.
1243 PM EDT Sat Sep 11 2021 High pressure will bring sunny and dry weather over the weekend.
1248 PM EDT Sat Sep 11 2021 Through the weekend, high pressure and dry air will remain in place over the forecast area. So overnight lows will be a few degrees warmer than Saturday. The dry weather continues through the short term courtesy of strong upper-level ridging. Sunday is a bit warmer and muggier than Saturday with highs in the upper eighties to near ninety. Low temperatures Sunday night should be in the lower sixties.
HZ from Pacific Northwest wildfires will continue to linger until 12/00Z as high pressure to our west weakens. Our position on the eastern edge of ridging centered over New Mexico places us in the path of more wildfire smoke from the Pacific Northwest, with column-integrated smoke models estimating about 20-40 micrograms per cubic meter aloft.
A weak cold front has moved through most of north central NE as a prefrontal trough extends through southwest NE. Showers and a few thunderstorms have developed ahead of this feature over the higher terrain of Wyoming and Colorado.
Upper level troughing over the east coast departs into the western Atlantic through Sunday as upper level ridging moves into the southeastern states. Tonight will be much warmer given the increased moisture content, with lows in the middle to upper 60's inland, and lower to middle 70's along the coast.
As seen on satellite imagery and area web cams, dense fog has developed this morning in the Lower Treasure Valley and along the Snake River, and in small portions of the Upper Weiser River Valley and eastern Malheur County.
1120 AM MDT Sat Sep 11 2021 Current surface map places cold front across northeast Wyoming/western South Dakota. Cold front stalls out over northeast Wyoming while remainder of front slips into Nebraska this morning.
210 PM CDT Sat Sep 11 2021 Cold front slipping south/southeast across the region later this afternoon/evening. Bulk of the upper level energy could hold across northern portions of MN/WI, but the system will drag a cold front along with it, providing another means of lift. Highs closer to 70 - roughly 10 to 15 degrees cooler than today - with much less humidity. Both the GFS and EC drive upper level energy across the northern plains Thu night, with a cold front well ahead of it. Looking for a dry day? Wed looks to be the day with high pressure moving overhead post the Tue system. A weak cold front will slowly move across the area this evening into tonight.
Water vapor imagery depicts a stalled frontal boundary extending from the Yucatan Peninsula northeastward across the Florida Peninsula, as a strong ridge is building across the Atlantic and into the Southeast.
218 PM MDT Sat Sep 11 2021 As expected, convection has broken out across northeast Utah and northwest Colorado in association with a weak cold front.
At 500 mb, height falls continued to push east from areas north of western MT down to eastern ID and western WY, helping to flatten the big ridge. It was also quite warm over parts of the high Plains at 850 mb, with temperatures of 31 C at KLBF and KDDC. A cold front is expected to sag south through the region tonight, but likely stall over southwest IA and southeast NE Sunday afternoon.
A mid/upper level trough currently centered over the NC coast will continue to move east and offshore tonight. At the surface, 1024 mb high pressure currently centered over VA/NC will move to the southeast and offshore. This will cause the low-level flow to become increasingly southerly, and 1000-850 mb thicknesses to be roughly 10 m higher than yesterday. Thus temperatures this afternoon are a few degrees higher, in the lower-to-mid-80s. Temperatures tonight will also be a few degrees warmer, but with high pressure extending back westward into the area, clear skies and light winds will help drop lows near to slightly below normal, mainly upper-50s with a few mid-50s possible in the usual cooler spots.