Aikyam-Lab/Synoptic-Bench huggingface dataset:
809 AM EST Sat Nov 11 2017 Fair and cold conditions will prevail into Sunday as arctic high pressure tracks from the eastern Great Lakes to northern New England.
Building high pressure aloft will bring mostly dry and breezy conditions to the region through Sunday with temperatures remaining near seasonal averages.
1028 AM EST Sat Nov 11 2017 High pressure will dominate the region through Sunday.
924 AM EST Sat Nov 11 2017 Dry Canadian high pressure over the eastern half of the country will move offshore tonight.
Last nights rain and development of fog as temperatures hover near freezing this morning could cause icy roads throughout the region until the sunrises. A weak ridge of high pressure builds over the Northern Rockies later today through Sunday. This ridge should cause a dry period, but valley inversions keep any warming to a minimum.
1002 AM EST Sat Nov 11 2017 High pressure will bring dry weather today. A low pressure area will then track across the area Sunday, bringing showers.
503 AM EST Sat Nov 11 2017 Fair and cold conditions will prevail into Sunday as arctic high pressure tracks from the eastern Great Lakes to northern New England.
653 AM EST Sat Nov 11 2017 Dry Canadian high pressure over the eastern half of the country will move offshore tonight.
/17/ Latest Rap and Satellite imagery showed westerly flow aloft with mid to upper ridging and a large amplified low level ridge over the Lower Mississippi Valley. Readings prior to dawn were from the upper 30s to the lower 40s. Lows for tonight will be somewhat below normal with readings from the upper 30s to the lower 40s. Any precipitation will be in and out quickly with high pressure at the surface filtering back into the region.
355 AM MST Sat Nov 11 2017 Current surface map places weak trof across the western Dakotas.
1017 AM EST Sat Nov 11 2017 High pressure will build into the area from the north today through Sunday.
Chilly and breezy day still on tap today with strengthening ridge gradient. Also updating to cancel the Freeze Warning as temperatures will likely not see freezing early this morning. /Issued 402 AM EST Sat Nov 11 2017/ Strong high pressure centered over the Great Lakes will move into New England by this evening which will strengthen the wedge over the CWA.
Low level moisture has increased with passage of backdoor front and surge of E/NE flow around strong high pressure to the north.
A sprawling high pressure system centered to our northeast will weaken and drift away from the area, allowing warm air advection today. Despite a chilly start, a steep early morning inversion will allow for much warmer conditions than yesterday once heating and mixing occur. It will support a weak cold front at the surface, reaching from Ohio to West Tennessee by Sunday evening. Models are not all in agreement on the light precip pattern, but a blend supports highest amounts in our northwest counties, and the highest POP will be placed there.
Temperatures will continue to warm quickly late this morning into this afternoon as the boundary layer deepens and warmer air aloft mixes to the surface. A sprawling high pressure system centered to our northeast will weaken and drift away from the area, allowing warm air advection today. Despite a chilly start, a steep early morning inversion will allow for much warmer conditions than yesterday once heating and mixing occur. It will support a weak cold front at the surface, reaching from Ohio to West Tennessee by Sunday evening. Models are not all in agreement on the light precip pattern, but a blend supports highest amounts in our northwest counties, and the highest POP will be placed there.
Associated with the low is a weak boundary/inverted trough that will lift up into southwest Iowa by mid morning then across the state through tonight. mainly along the highway 20 corridor.
A high pressure was located over the mid-Atlantic states this morning, stretching over the southeast United States. This high will enter the northwest Atlantic waters tonight and tomorrow.
535 AM EST Sat Nov 11 2017 Dry Canadian high pressure over the eastern half of the country will move offshore tonight.
523 AM CST Sat Nov 11 2017 Pressure gradient tightens somewhat today as high pressure slides east of the area. An upper level disturbance and cold front will then push towards the area late in the day, and as atmosphere saturates, could see some drizzle/light rain develop over southeast Kansas and western Missouri. On Sunday, front pushes away from the area with high pressure building southward into the region in the afternoon.
A weak cold front will push through Arkansas from the Plains tonight and Sunday.
449 AM PST Sat Nov 11 2017 Expect dry and mild conditions under the influence of weak high pressure through the weekend.
By Sunday, a ridge sets up over the area, and temperatures will warm again to nearly normal, with high temperatures in the 40s along and south of the Hi-Line, and highs in the 30s north. An upper level high pressure ridge builds into the region on Sunday, with an upper level low dropping south along the coasts of British Columbia and the Pacific Northwest.
Also believe that with an onshore flow resuming today, the lower clouds will be mixed out, leaving only higher cloudiness behind. Isolated to scattered patches of light rain are expected to prevail in the wake of the dissipating inverted trough during the weekend.
541 AM EST Sat Nov 11 2017 Fair and cold conditions will prevail into Sunday as arctic high pressure tracks from the eastern Great Lakes to northern New England.
Light snow across northwest Minnesota associated with an upper level low propagating eastward across southern Canada will exit during the morning hours. As the system passes to the east, winds will become northwest with the passage of a cold front.
925 AM EST Sat Nov 11 2017 Dry Canadian high pressure over the eastern half of the country will move offshore tonight.
636 AM EST Sat Nov 11 2017 High pressure across the Great Lakes will move east off the New England coast Saturday night. This will allow weak a low pressure system to cross the Ohio Valley Sunday afternoon and Sunday night.
Soundings show warm air aloft so there will be a chance for some of this precip to fall as a rain snow mix or even freezing rain where surface temperatures are below freezing. High pressure ridging builds once again across the forecast area on Sunday with mostly sunny skies returning. A downslope flow along with a southwest flow aloft will allow temperatures to be a few degrees warmer than today with 40s common across the area.
Low clouds and fog will return late tonight as a cold front moves across the area. Sunday morning a cold front drops south into the area and weak cold air advection combined with clouds developing behind the front will keep highs around 15 degrees cooler than today.
A weakening upper level trough will graze far northern Utah through mid-afternoon today. High pressure aloft will return tonight, followed by a warm and dry southwest flow aloft to begin the new week.
528 AM EST Sat Nov 11 2017 High pressure through tonight. Another cold front mid week. High pressure will remain in control today. However, overnight lows tonight will be warmer than what we saw this morning, but usual cold spots should still radiate out rather quickly after sunset this evening. Dry weather will continue through the weekend courtesy of high pressure.
907 AM EST Sat Nov 11 2017 Upper troughiness over the region into the S Gulf this mornings as seen in water vapor imagery while back door front sweeps into NE FL.
Chattanooga Airport, TN 60 43 57 44 / 0 20 20 20 Knoxville McGhee Tyson Airport, TN 56 41 54 43 / 0 10 20 20 Oak Ridge, TN 57 41 54 43 / 0 10 20 20 Tri Cities Airport, TN 55 34 52 40 / 0 10 20 30.
911 AM EST Sat Nov 11 2017 High pressure through tonight. Another cold front mid week. High pressure will remain in control today. However, overnight lows tonight will be warmer than what we saw this morning, but usual cold spots should still radiate out rather quickly after sunset this evening. Dry weather will continue through the weekend courtesy of high pressure.
6inches along the Lower Texas coast moving toward the northwest. MSAS analysis shows a coastal trough axis from the Lower Texas coast north-northwest. The trough axis will move inland and weaken by tonight. Upper level ridge axis will slowly build over Mexico into South Texas on Sunday.
945 AM EST Sat Nov 11 2017 Strong high pressure was located over the Mid Atlantic States centered over PA/NY area at 1038 mb. Analysis shows inverted trough along the coast with enhanced convergence in the lowest levels. only slight tweaks to the POPs to slow down initial showers based on radar trends and adjust temps since coastal areas are starting out in the lower 70s.
With the ground frozen, this liquid precipitation is in the form of light freezing rain. For the most part, the highest radar returns have already moved east of the forecast area, so additional accumulation appears minimal. There may be some light freezing drizzle or rain with the loss of ice aloft as precipitation diminishes later this morning, but impacts should be minor given isolated coverage. Thermal profiles show an isothermal layer near freezing developing from the surface to around 800 hPa and with ice aloft, precipitation type should transition to a rain/snow mix.
620 AM EST Sat Nov 11 2017 High pressure through tonight. Another cold front mid week. High pressure will remain in control today. However, overnight lows tonight will be warmer than what we saw this morning, but usual cold spots should still radiate out rather quickly after sunset this evening. Dry weather will continue through the weekend courtesy of high pressure.
1043 AM EST Sat Nov 11 2017 Fair and cold conditions will prevail into Sunday as arctic high pressure overhead slides to the east.
Observations this morning show the fog & BR to be freezing fog, so updated the wx grids for that. By Sunday, a ridge sets up over the area, and temperatures will warm again to nearly normal, with high temperatures in the 40s along and south of the Hi-Line, and highs in the 30s north. An upper level high pressure ridge builds into the region on Sunday, with an upper level low dropping south along the coasts of British Columbia and the Pacific Northwest.
Also updating to cancel the Freeze Warning as temperatures will likely not see freezing early this morning. /Issued 402 AM EST Sat Nov 11 2017/ Strong high pressure centered over the Great Lakes will move into New England by this evening which will strengthen the wedge over the CWA.
Austin has a bit more drier air, so it will take longer for the overrunning to saturate the lower atmosphere.
After a dry day today, a low pressure system will bring rain to central Indiana on Sunday. Large High pressure was centered over NY State and the Appalachians late this morning. Low pressure was found across the TX and OK panhandle. Forecast soundings remain dry today and time height continue to show a dry column as the High cloud is expected to continue to stream across the Hoosier State. This will result in dry weather today with slightly warmer temperatures than yesterday. have stuck closer to the cooler LAV temps and forecast builder is not too far for this.
Isolated showers were moving northwest into the southern Coastal Bend to the east of a weak coastal trough. Expect an increase in coverage of light showers along this trough axis affecting ALI/CRP areas through the afternoon. The lower ceilings should be over the VCT area through the afternoon. 6inches along the Lower Texas coast moving toward the northwest. MSAS analysis shows a coastal trough axis from the Lower Texas coast north-northwest. The trough axis will move inland and weaken by tonight. Upper level ridge axis will slowly build over Mexico into South Texas on Sunday.
Despite the nly flow and weak mid-level cold advection across the region, max temps will end up warmer than yesterday at many locations as mixing and increased sun boost readings. Min temps will end up seasonably cold at most locations under clear skies, with occasionally breezy conditions limited to the higher peaks of the central mountains.
High pressure over Mexico and a storm track that will remain well north of our area.
High temps shld be a couple of degrees warmer as an upr lvl rdg axis moves ovr the region.
338 AM CST Sat Mar 3 2018 The front that stalled over the gulf will get brought back to the area by the next cold front that will begin to form later today out west.
1011 PM MST Fri Mar 2 2018 21z surface analysis had low over northeast WY with warm front into eastern NE. Water vapour showed upper low heading into the western WA/OR coast with ridge shifting east of the CWA. Upper low the main concern this forecast.
324 AM CST Sat Mar 3 2018 High pressure at the surface and aloft will dominate our weather through tonight bringing plenty of sunshine to the area along with temperatures a few degrees warmer than what we saw yesterday, despite an easterly flow over the forecast area.
141 AM EST Sat Mar 3 2018 High pressure over central Canada will slow build eastward into the area this weekend.
413 AM EST Sat Mar 3 2018 High pressure over central Canada will slow build eastward into the area this weekend.
158 AM EST Sat Mar 3 2018 High pressure is leading to clearing skies with winds having decoupled in valleys. Although it's not an ideal night for significant ridge/valley temperatures differences to occur, winds have died down enough for some modest differences to begin setting up. Mostly clear skies will be seen through the short term, as an upper level ridge of high pressure gradually shifts from the Plains to the Mississippi Valley. Given the drier air in place and mostly clear skies, have favored a wider diurnal range, staying on the cooler side of guidance for the lows, while going warmer for the highs. Lows tonight and Saturday night will be in the 20s, with highs on Saturday in the low 50s for most locations.
255 AM EST Sat Mar 3 2018 Building high pressure will ensure dry and seasonably cool conditions for the weekend. The clouds should erode by afternoon as high pressure builds further across the areas. Elsewhere, mainly clear skies are expected under the high.
With continental northeast flow in the low level to persist through the night, so will the dry conditions that will bring clear skies and cool temperatures. /issued 530 PM CST Fri Mar 2 2018/ 00Z TAFS VFR conditions will prevail through the TAF period with high pressure centered north of the area. /issued 342 PM CST Fri Mar 2 2018/ Latest UA analysis and WV imagery shows low amplitude ridging over the southern plains building eastward over the area. At the sfc, a ridge of high pres extends south from the upper MS valley to the northwest Gulf. The ridge axis aloft will shift east in response to a trough crossing the Rockies on Sunday, and this will allow for the development of a few showers and tstms by late in the weekend, mainly over western portions of the area.
338 AM CST Sat Mar 3 2018 Southwesterly flow aloft has returned to West Texas as an upper level ridge slowly slides eastward across the central part of the country.
As the broad trough located over the Western Conus begins to shift Eastward this Afternoon, the band of Snow should push away from the Interstate corridor while at the same time weakening. The trough is then expected to strengthen right over SE Idaho on Sunday. The Trough is forecast to close off over Montana, with wrap-around Snow Showers developing over the Montana border/Island Park region Sunday Afternoon (locally heavy) then tracking South/East across the Wyoming border region thorugh Sunday Evening.
351 AM CST Sat Mar 3 2018 With the main ridge axis overhead and winds swinging more southerly today, it will be a warmer day with highs expected to reach above freezing for most locations and into the 40s in treed. With air at mid and upper levels will remain quite dry under ridging, QPF will be quite light and this profile suggests mainly drizzle or freezing drizzle and also potential for fog over colder snow-covered ground tonight.
1105 PM CST Fri Mar 2 2018 High pressure remains in control of the weather across central and southeast Illinois tonight, producing mostly clear skies aside from a weak upper level disturbance that will produce a few hours of mid-level clouds north of I-74 late this evening. Ridge of high pressure currently extending from Ontario southward to the Gulf Coast will shift slowly eastward over the next 24 hours. As a result, am expecting afternoon highs just a few degrees warmer than today. generally topping out in the lower to middle 50s.
1158 PM EST Fri Mar 2 2018 Aviation A dry and sunny weekend is in store for West Michigan thanks to high pressure overhead.
309 AM EST Sat Mar 3 2018 Strong low pressure south of the New England Coast will slowly move further away from the forecast area through the weekend. A pressure ridge extending through the Mississippi River Valley will move eastward.
Upper-ridge in place to maintain mostly sunny skies today with high temperatures forecast to climb into the mid to upper 60s areawide with portions of deep east Texas possibly climbing into the lower 70s. Convection to continue into Sunday ahead of an approaching cold front/dry line.
320 AM CST Sat Mar 3 2018 The latest sfc analysis was indicating passing ridge center acrs the western GRT LKS and down into the OH RVR Valley, while tightening southeasterly return flow pressure gradient with an embedded warm front was organizing acrs the eastern plains and western IA/MO.
Southwesterly flow aloft with deepening low pressure to our southeast sets the stage for more moisture pouring into the Northern Plains. Have a mix of mainly some light snow/flurries in the north and drizzle/freezing drizzle elsewhere. As a Colorado low pressure system develops and intensifies as it makes its way towards the region on Sunday, precipitation chances will quickly increase.
310 AM CST Sat Mar 3 2018 Low-level moisture is creeping nw into the se PB this AM with light se winds east of the lee trough. Any clouds/light fog that develop will dissipate by mid morning and we expect another day with above normal high temps, especially across the w where 85h temps are 6-9C warmer. As an upper low moves e into the central plains a cold front will have been moving s and is forecast to arrive INVOF I-20 corridor around 12Z Mon. This will re-enforce cooler/even drier air across the area on Mon/Tue. Warmer Wed/Thur with dry air moderating some.
307 AM EST Sat Mar 3 2018 Gradient winds between high pressure over Great Lakes, and intense offshore low, gradually slacken through the weekend.
With max temperatures around 70 degrees to the lower 70s, minimum relative humidity values will drop into the upper teens inland and mid to upper 20s along the coast.
Continued low level moisture feed from the Gulf will make it tough for the low clouds to lift, although some improvement to low end VFR conditions is possible for Saturday afternoon. Models are often a little fast with progression of the low clouds on the first night of return flow, so backed the timing back a bit, but left it mainly as is for now.
On Saturday a large upper low pressure system will continue over the region with a cold and unstable air mass aloft. Temperatures will be slightly cooler than today and winds will be light except for the southern Grande Ronde Valley where it will be breezy to windy from the south. By Sunday the upper low will shift eastward putting the forecast area under a drier northwest flow aloft with mostly fair conditions except for possible isolated rain or snow showers over the mountains again.
Overnight composite analysis reveals upper level ridging building across the plains and the western Great Lakes/Ohio Valley region. flanked by deep closed lows over the Pac NW and the departing major winter storm off the New England coast. High pressure/dry air remain the dominate forces across the region throughout the weekend. Upstream ridging/thermal axis slowly edges into the region and we will continue to see some mid and high cloud cover streaming through the region as a result.
A large area of high pressure has settled over the Midwest, so dry conditions can be expected all weekend for central Indiana. Meanwhile, a weak warming trend will occur during the short term period with highs reaching the low to mid 50s by Sunday.
The High is sandwiched between the big N'oreaster, and the Northwest U. Trof. Ridging upper heights will assist in the warmup heading thru the weekend.
The warm advection will build the upper ridge over the Great Plains and toward the MS River Valley through the weekend. A very nice day is underway this afternoon across the region, with light winds and plenty of sunshine, courtesy of high pressure moving overhead. Temperatures will be lower near the lake given the onshore flow, with highs in the low 40s.
Stronger, deeper downslope momentum will overspread the High Plains resulting in deeper leeside trough and warmer 850mb temperatures. This will translate to warmer surface temperatures as well, with the expectation of afternoon highs in the upper 70s, perhaps 80 in a couple spots across far west central and southwest KS. POPs have been lowered late Sunday afternoon/evening across our south central KS counties as the latest GFS solution is starting to trend more toward the northern ECMWF solution, leading to slightly warmer air around 700mb, plus the fact that mid level cold advection will likely not occur until after sundown.
308 AM EST Sat Mar 3 2018 A strong upper ridge will drift from west of the MS River Valley into the southeast states during the short term.
210 AM EST Sat Mar 3 2018 Gradient winds between high pressure over Great Lakes, and intense offshore low, gradually slacken through the weekend.
117 AM CST Sat Mar 3 2018 High pressure will continue to dominate through the period with widespread VFR conditions expected.
High pressure will keep VFR in place through the next 24 hours.
349 AM CST Sat Mar 3 2018 Today and Tonight: High pressure at the surface and ridging in the upper levels will contribute to an exceptional day of weather for Saturday.
The upper level low over the region will shift inland and weaken through the weekend.
131 AM EST Sat Mar 3 2018 Strong low pressure off the mid-Atlantic Coast will move farther offshore through the weekend. A pressure ridge extending through the Mississippi River Valley will move eastward.
Expect ceilings will continue to lower to mainly IFR during the overnight hours for the Coastal Bend as isentropic lift slowly increases with the coastal trough approaching the coast. Will keep mention of light rain/drizzle for CRP/ALI as this trough moves inland Saturday morning with MVFR vsbys. As the coastal trough moves slowly inland during the morning hours, rain chances will move farther inland. Made some adjustments to show current trend that is expected to continue through the overnight hours as coastal trough moves toward the coast.
1120 PM CST Fri Mar 2 2018 An intense mid-level trough along the Pacific NW coast this afternoon will move onshore tonight, through the Interior West Saturday and Saturday night, and into the Rockies on Sunday. In the low levels, a lee cyclone will consolidate over eastern WY into northeast CO while a cold front advances south through the northern High Plains. Showers and a few thunderstorms will spread across the remainder of the area Sunday night with a change over from rain to snow in northeast NE behind a strong cold front moving into the region.
/issued 859 PM CST Fri Mar 2 2018/ High pressure remains over the Ohio Valley this evening resulting in clear skies and light winds occurring across the Mid-South. High pressure was centered over northern Illinois this afternoon which is responsible for the clear skies and near normal temperatures. Temperatures will cool off some tonight with some locations over eastern sections of the forecast area having lows at or slightly below freezing. Saturday night will remain dry and somewhat chilly as a few locations in west Tennessee could see low temperatures Sunday morning close to freezing. Sunday will remain dry and somewhat warmer with highs in the 60s.