Aikyam-Lab/Synoptic-Bench huggingface dataset:
924 AM MDT Sun Sep 5 2021 Weak northwest flow aloft around a strong ridge over the southwest part of the country will bring very dry air and warm temperatures.
225 PM MDT Sun Sep 5 2021 Strong upper level high centered off to the west will continue to bring warm and very dry northwest flow. The airmass warms 3-5C which should put most locations over northeast Colorado in the lower to mid 90s.
Elsewhere, clearing skies from mixing with the drier, cooler airmass continues across most of Oklahoma. Cooler, pleasant temperatures will continue throughout the rest of the afternoon behind the front. Southerly winds and warmer temperatures return tomorrow, with highs climbing back into the 90s.
Winds will be fairly light overnight, then will become more southwesterly on Monday ahead the low. The southerly flow will also usher much warmer air into the region, and with drier air behind the front, will go ahead and upgrade the current Fire Weather Watch for Corson and Dewey counties to a Red Flag Warning.
200 PM MDT Sun Sep 5 2021 Benign late summer weather continues across eastern Idaho today as high pressure controls local weather for the next few days. This area of high pressure will gradually build over the Great Basin the next few days keeping the area dry with well above normal temperatures and no chance for any precip. Expecting temperatures to reach well into the 90s across the lower elevations with a few record highs potentially in jeopardy.
402 PM EDT Sun Sep 5 2021 A weak cold front will continue to move away from the region tonight as high pressure builds east into the Ohio Valley.
Mid to upper level ridging continues to weaken this afternoon as a a broad mid level trough digs south over the Ohio Valley region.
255 PM CDT Sun Sep 5 2021 High pressure centered over eastern Kansas will drift southeast tonight, and spread out until the ridge axis stretches from eastern Texas up Kentucky into West Virginia by Monday Afternoon. Expect some steam fog on area rivers with temperatures dropping this low, though widespread fog does not look likely at this time. Highs on Monday will likely be a few degrees warmer than today.
High pressure strengthens over Nevada with increasing temperatures as well.
High pressure will pinch out to the east tonight as a trough progresses across the central CONUS, draping down into Southeast Texas. Moisture advection out of the northeast around 700mb ahead of the trough axis will increase PWATs to around 2. Temperatures on Monday will be similar to today with a couple degrees cooler over the Victoria Crossroads where cloud cover and rain chances will be greatest.
On Monday southerly winds will develop ahead of the next low pressure system. Temperatures will be a bit warmer than today, with Labor Day highs in the 70s east of I-35, and 80s west of I-35.
1200 PM CDT Sun Sep 5 2021 (Today and tonight) A weak cold front has moved south into the Big Country, and will continue moving slowly south through our central counties today. Highs today are expected to be a little cooler (in the upper 80s to lower 90s) across the Big country north of the front. How far south the weak cold front ends up is in question at this point, as it becomes more diffuse.
304 PM EDT Sun Sep 5 2021 A weak cold front is crossing the area this afternoon with showers along and ahead.
More significant trof is found just offshore near the Pac NW, competing with building ridge to its south.
147 PM CDT Sun Sep 5 2021 A few widely scattered showers/thunderstorms will remain possible across far southeast Oklahoma and west-central Arkansas this afternoon as low level moisture lags behind cold front.
Smoke expected to linger for the next several days under the influence of high pressure.
This cumulus field may yield one or two storms anywhere along this trough axis.
This high will provide subsidence across the region and allow for dry and pleasant conditions for the rest of the holiday weekend. Models are showing weak upper troughing swinging through the eastern U. Temperatures will be more seasonable to slightly below normal with highs in the low to mid 80s and lows near 60.
SHORT TERM (Now through Monday Night): Effects from a stout 500mb ridge that is centered over CA/NV will continue producing above seasonal average temperatures and rain-free weather across Deep South Texas through the short-term period. All in all, Labor Day will be similar to past few days with daytime temperatures in the mid- upper 90s and lower 100s and overnight lows tonight and Monday night in the lower-middle 70s across the district.
Temperatures will be significantly cooler than what we saw today, with highs in the upper 80s to around 90 degrees across the area. Overnight lows on Monday night will range from the lower to mid 60s.
Morning lows will be mild and mostly in the lower 50s, maybe a touch warmer in central SD.
305 PM CDT Sun Sep 5 2021 (Issued 305 PM CDT Sun Sep 5 2021) Tonight through Monday night: A weak front will push through this evening associated with a 500mb trough that will clear the area by midnight. Lighter winds move in overnight and into Monday as high pressure settles over the area.
1129 AM MDT Sun Sep 5 2021 Current IR Satellite loop shows clear skies across southeast Wyoming and western Nebraska early this morning as an upper level ridge axis is forecast to drift east over the northern and central Front Range today.
A slightly cooler air mass is in place as highs in the upper 70s to the middle 80s are expected this afternoon. Lows tonight will drop into the upper 50s to the lower 60s.
1119 AM MDT Sun Sep 5 2021 The main story for the next few days is really the ridge building in over the Great Basin, which will dominate the weather for eastern Utah and western Colorado, keeping things dry and warm.
333 PM EDT Sun Sep 5 2021 A weak cold front is crossing the area this afternoon with showers along and ahead.
Temperatures will be equally hot, though a drop in dewpoints looks to bring humidities into the low teens to single digits.
300 PM CDT Sun Sep 5 2021 After the showers and thunderstorms dissipated this morning, it has been a pleasant day with mostly clear skies and highs in the low to mid 80s for most. Weak ridging moves overhead Monday allowing temps to increase a bit more.
Upper ridge continues to build over NV with dry air spreading farther south into nrn and central NM. An unseasonably strong area of high pressure will build into NM from the west this week. The warmer than average temperatures spread to all areas Monday afternoon as the above mentioned upper-level continues to strengthen as it shifts to near the central N/UT.
Light rain showers expected to increase in coverage this evening and early tonight as a cold front moves southward toward the region. Drying out mid-morning on Monday with cooler, seasonable temperatures and light northerly winds. This will amplify troughing across the Great Lakes and Ohio Valley and bring a cold front southeastward across the forecast area. 0 inch PW values is forecast directly along and ahead of the cold front, so a few isolated downpours with heavy rain rates could be possible. Temperatures will be several degrees cooler behind the front and near early September normals.
(This evening through Monday) A weak cold front will continue to slowly move south across the area late this afternoon and evening. On Monday, near seasonal temperatures are forecast, with highs in the low to mid 90s. The remnant cold front will be located across our southern counties. The upper level ridge currently centered over the Great Basin area will slowly shift eastward into the Four Corners area by the second half of the week, and into the weekend. The ridge will flatten somewhat over the weekend, but will still be strong from the Desert Southwest into Texas.
1251 PM EDT Sun Sep 5 2021 High pressure will remain over the region today then move offshore as a weak cold front approaches from the northwest. Tonight a cold front move toward the region and into the Upstate around daybreak. High temperatures this afternoon will be in the mid to upper 80s with the clouds tonight lows will be a few degrees warmer with mid 60s at most locations. A cold front pushes into The Midlands and CSRA Labor Day afternoon.
229 PM CDT Sun Sep 5 2021 Midlevel ridging over the western CONUS will continue to build over the next couple of days.
The forecast period begins with a cold front draped across the state along the I-40 corridor pushing southeastward. Today Through Monday Night Regional WSR-88D radars depict showers and thunderstorms over the Nrn third of AR associated with a slow moving cold front. High pressure will return on Monday. Over Nrn AR, highs are expected to reach the lower 80s.
1138 AM EDT Sun Sep 5 2021 Ahead of a cold front clouds and showers will impact central Pennsylvania today, with showers becoming more scattered this afternoon.
146 PM CDT Sun Sep 5 2021 Kind of a lackluster day with clouds and some light rain for the middle of your Labor Day Weekend, but it's cooler, so that's something.
Look for mainly dry conditions the remainder of the Labor Day weekend with just a slight chance of thundertorms over the higher terrain of east-central Arizona.
251 PM CDT Sun Sep 5 2021 High pressure aloft, located over the SW, will keep conditions dry and temps above average. As the troughing moves through, it will transition winds to northwesterly, and advect in cooler air as it does.
Little change in the forecast as the upper level ridge still resides to our south.
226 PM MDT Sun Sep 5 2021 A strong ridge of high pressure will be shifting slowly east from the Great Basin into the Central Rockies this week. Very dry conditions are expected underneath this ridge with temperatures jumping back into the 90s for the lower valleys with 70s/80s across the higher elevations. With this dry air mass in place, expect big diurnal swings with our overnight temperatures dropping a solid 30-40 degrees from afternoon highs in the lower valleys.
Northwesterly upper/mid-level flow will continue through the forecast period as upper-level ridging builds across the western CONUS.
Light winds and a gradually clearing sky will follow overnight as temperatures drop into the lower to middle 60s area wide by Monday morning. A return to light southerly breezes and plenty of insolation will yield a warmer Memorial Day as highs range from the middle 80s near the TX/NM line to the lower and middle 90s off the Caprock. Still expecting warmer and drier conditions through this week as upper level ridging expands across the southern Great Basin and slowly moves towards the forecast area.
250 PM EDT Sun Sep 5 2021 High pressure will remain over the region today then move offshore as a weak cold front approaches from the northwest. With pwat values still under one inch do not expect any rain through this evening with moisture beginning to increase tonight ahead of an approaching cold front. Clouds will begin increasing during the early morning hours and with the increasing clouds temperatures will be warmer than previous nights while the possibility of fog will be limited. A cold front pushes into The Midlands and CSRA Labor Day afternoon.
1227 PM CDT Sun Sep 5 2021 Water vapor imagery shows an upper impulse tracking across west- central Nebraska with a deep upper low centered over north-central Ontario. At the surface, high pressure is centered over eastern Nebraska/northeast KS. Northwest flow aloft will be in place by this evening with a strong area of high pressure situated over the Central Great Basin. This feature will allow a cold front to surge through the forecast area on Tue into Tue evening. By Wed, deep upper trough is expected to stretch from Ontario through the Great Lakes and into the Ohio Valley. Meanwhile, upper ridging will expand across the Desert Southwest and across the Southern Plains. ECMWF and GFS start to diverge in their solution by Sat with the GFS much more agressive with an upper trough compared to the ECMWF.
Tonight, temperatures will drop into the low 40s to low 50s with light winds from the west/northwest. Labor Day will be dominated by broad northwesterly flow aloft and slightly cooler temperatures.
High pressure will continue to move the southeast of the region Tonight, as a cold front approaches from the northwest. The area will be between high pressure to the southeast and the slow moving cold front to the northeast during the day Monday. With the high to the southeast on Monday, an increasingly warm and moist flow from the southwest expected for Monday, with shower and thunderstorm chances over NE FL.
242 PM CDT Sun Sep 5 2021 18Z surface data has a cold front running from upper Michigan into South Dakota with high pressure over the central Plains.
For the short term, Texas will stay in-between an amplifying mid- level ridge across the Southwestern CONUS and a trough axis moving across the Great Lakes that keeps a broad weakness extending down into the Mid-South. Activity will likely decline into and during the overnight while morning lows fall into the low to mid 70s for most. Temperatures will otherwise trend slightly cooler due to the increased cloud cover and moisture. Otherwise, portions of the Hill Country should see the morning lows drop into the upper 60s while everywhere else bottoms out in the low to mid 70s.
/issued 350 PM CDT Sun Sep 5 2021/ The latest surface analysis places a cold front just south of and parallel to interstate 40. Water vapor imagery reveals a positively tilted trough over the northern Great Lakes with broad cyclonic flow across most of the eastern CONUS.
Latest surface analysis early this evening places a cold front from Middle Tennessee back through North Mississippi. Rain chances have been trimmed back as Convective Allowing Model solutions (CAMs) indicate rain chances should diminish this evening as high pressure gradually builds into the Mid-South. /issued 350 PM CDT Sun Sep 5 2021/ The latest surface analysis places a cold front just south of and parallel to interstate 40. Water vapor imagery reveals a positively tilted trough over the northern Great Lakes with broad cyclonic flow across most of the eastern CONUS.
A cold front will push across the state mainly during the afternoon hours with winds shifting to the west/northwest and strengthening to over 20 mph sustained with stronger gusts.
928 PM EDT Sun Sep 5 2021 A weak cold front will continue to move away from the region tonight as high pressure builds east into the Ohio Valley.
A ridge of high pressure will build over the area through middle of the week resulting in very warm to hot and dry conditions.
648 PM CDT Sun Sep 5 2021 High pressure aloft, located over the SW, will keep conditions dry and temps above average. As the troughing moves through, it will transition winds to northwesterly, and advect in cooler air as it does.
Storms have already developed across the region this afternoon, with high pressure sitting over the southern Great Basin. High pressure builds north across central Nevada for Labor Day with SE Arizona under east/northeast flow aloft. High pressure remains quasistationary through midweek with moisture confined to the western part of the CWA and along the International border.
1052 PM EDT Sun Sep 5 2021 A weak cold front will clear the region early tonight leaving a pleasant Labor Day with seasonal temperatures and partly sunny skies.
721 PM EDT Sun Sep 5 2021 A weak cold front passing through now will clear the region early tonight leaving a pleasant Labor Day with seasonal temperatures and partly sunny skies.
844 PM EDT Sun Sep 5 2021 High pressure will remain over the region tonight then move offshore as a weak cold front approaches from the northwest. Weak high pressure remains over the area but will weaken overnight as a cold front over the Ohio/Tennessee Valleys approaches tonight. Winds have become light to near calm and dewpoints have rebounded into the lower to mid 60s. Expect overnight lows in the lower to mid 60s. A cold front pushes into The Midlands and CSRA Labor Day afternoon.
835 PM EDT Sun Sep 5 2021 The remnants of the ridge axis is right on top of the Florida Keys, and as a consequence the wind field has just collapsed. There has been a slow but definite increase in tropospheric moisture today versus the previous two days, especially in the lower half of the boundary layer.
A cold front is currently making its way through Middle Tennessee this evening.
The higher dewpoint air will get pushed just south of the area, though by tomorrow morning dewpoints only falling to mid to upper 60 dewpoints are expected. /Issued 147 PM CDT Sun Sep 5 2021/ A few widely scattered showers/thunderstorms will remain possible across far southeast Oklahoma and west-central Arkansas this afternoon as low level moisture lags behind cold front.
/Issued 147 PM CDT Sun Sep 5 2021/ A few widely scattered showers/thunderstorms will remain possible across far southeast Oklahoma and west-central Arkansas this afternoon as low level moisture lags behind cold front.
729 PM EDT Sun Sep 5 2021 A weak cold front will continue to move away from the region tonight as high pressure builds east into the Ohio Valley.
712 PM EDT Sun Sep 5 2021 A weak cold front passing through now will clear the region early tonight leaving a pleasant Labor Day with seasonal temperatures and partly sunny skies.
Kind of a lackluster day with clouds and some light rain for the middle of your Labor Day Weekend, but it's cooler, so that's something.
907 PM EDT Sun Sep 5 2021 A cold front crosses through overnight. High pressure returns on Labor Day. Another cold front crosses mid week followed by high pressure late week. Showers will continue to move east northeast across the area ahead of a crossing cold front. The cold front will push east, exiting the eastern mountains by 06Z. Highs for Labor Day will be a couple degrees above normal, generally in the low to mid 80s lowlands, ranging into the mid 60s highest elevations.
Chattanooga Airport, TN 69 83 63 86 68 / 60 10 0 20 10 Knoxville McGhee Tyson Airport, TN 68 82 61 86 67 / 60 10 0 10 10 Oak Ridge, TN 66 81 61 85 65 / 60 10 0 10 10 Tri Cities Airport, TN 64 81 56 85 63 / 50 10 0 0 10.
Low pressure remains centered over James Bay this afternoon. Associated secondary cold front has reached far Central Upper Michigan and Central Wisconsin. Pre-frontal trough now extending from APN to HTL has kicked off a line of showers/isold thunderstorms well ahead of the main cold front. forming just ahead of the cold front. Scattered convection will continue to impact much of our CWA thru this evening along and ahead of the cold front. Low temps will cool into the lower 50s overnight.
Seasonal lows are expected in ND, however colder temps are expected in our east as high pressure lingers and a few locations may fall to the mid or even lower 40s by Monday morning. Any isolated showers that moved over Lake of the Woods have now shifted east along the the lower CU field, so the rest of tonight should be dry. A warm front should bring much warmer (above seasonal average) temperatures to the region Monday. The wind on Tue will come courtesy of a decent push of cooler advection, as we look at sustained winds between 20 and 25 kts with an occasional gust toward 35. Otherwise northwest flow aloft will become entrenched for several days as a larger ridge of high pressure builds over the intermountain west.
Skies clearing into the morning hours, with morning lows in the low to mid-70s.
618 PM CDT Sun Sep 5 2021 Midlevel ridging over the western CONUS will continue to build over the next couple of days.
Latest satellite and upper air analysis show the ridge of high pressure dominating the weather pattern over the Great Basin. The sky was clear over the Great Basin except for the high clouds over Montana filtering southward. Smoke from the California wildfires continues to be circulated east under the high pressure. Monday a weak upper level short wave trough will approach the forecast area. This weak trough will flatten the ridge and direct more of the smoke toward the forecast area. 700mb winds will increase ahead of the approaching trough, becoming breezy for much of the forecast area. Meanwhile in the Nebraska Panhandle WAA ahead of the cold front will cause highs to warm to about ten degrees above normal. Monday night the trough will move through the forecast area. A weak cold front will accompany the trough.
18Z surface data has a cold front running from upper Michigan into South Dakota with high pressure over the central Plains.
1024 PM EDT Sun Sep 5 2021 A weak cold front will clear the region early tonight leaving a pleasant Labor Day with seasonal temperatures and partly sunny skies.
Strong high pressure bring hot afternoons and dry weather to the region for the next few days.
535 PM MDT Sun Sep 5 2021 Strong upper level high centered off to the west will continue to bring warm and very dry northwest flow. The airmass warms 3-5C which should put most locations over northeast Colorado in the lower to mid 90s.
646 PM CDT Sun Sep 5 2021 After the showers and thunderstorms dissipated this morning, it has been a pleasant day with mostly clear skies and highs in the low to mid 80s for most. Weak ridging moves overhead Monday allowing temps to increase a bit more.
540 PM MDT Sun Sep 5 2021 A strong ridge of high pressure will be shifting slowly east from the Great Basin into the Central Rockies this week. Very dry conditions are expected underneath this ridge with temperatures jumping back into the 90s for the lower valleys with 70s/80s across the higher elevations. With this dry air mass in place, expect big diurnal swings with our overnight temperatures dropping a solid 30-40 degrees from afternoon highs in the lower valleys.
Look for mainly dry conditions the remainder of the Labor Day weekend with just a slight chance of thunderstorms over the higher terrain of east-central Arizona.
Strong upper level high centered off to the west will continue to bring warm and very dry northwest flow. The airmass warms 3-5C which should put most locations over northeast Colorado in the lower to mid 90s.
651 PM EDT Sun Sep 5 2021 A cold front crosses through early tonight. High pressure returns on Labor Day. Another cold front crosses mid week followed by high pressure late week. Showers will continue to move east northeast across the area ahead of a crossing cold front. The cold front will push east, exiting the eastern mountains by 06Z. Highs for Labor Day will be a couple degrees above normal, generally in the low to mid 80s lowlands, ranging into the mid 60s highest elevations.
High pressure will continue to expand northward, providing the region with dry conditions and above-normal temperatures on Monday. Winds will be locally gusty in the higher elevations during the afternoon.
644 PM CDT Sun Sep 5 2021 Convection is ongoing across the region associated with a south moving cold front. Temperatures will be significantly cooler than what we saw today, with highs in the upper 80s to around 90 degrees across the area. Overnight lows on Monday night will range from the lower to mid 60s.
619 PM CDT Sun Sep 5 2021 High pressure centered over eastern Kansas will drift southeast tonight, and spread out until the ridge axis stretches from eastern Texas up Kentucky into West Virginia by Monday Afternoon. Expect some steam fog on area rivers with temperatures dropping this low, though widespread fog does not look likely at this time. Highs on Monday will likely be a few degrees warmer than today.
915 PM CDT Sun Sep 5 2021 A broken line of heavy rain along with a few tstms continues to move east across parts of north cntrl/NE AL this late Sun evening, along and just ahead of a weak cold front crossing thru NW AL. Modest cold air advection on Monday will limit high temperatures to the low to mid 80s as skies gradually clear, so it should be a very pleasant Labor Day in the afternoon and evening.
A quiet, light wind, mostly clear sky, high pressure night. Winds will be fairly light overnight, then will become more southwesterly on Monday ahead the low. The southerly flow will also usher much warmer air into the region, and with drier air behind the front, will go ahead and upgrade the current Fire Weather Watch for Corson and Dewey counties to a Red Flag Warning.