Aikyam-Lab/Synoptic-Bench huggingface dataset:
An upper-level ridge has moved into the Midwest today with the ridge axis cutting through the Quad State. will continue to see dry weather as the high pressure center sets up over the Southern Appalachians early in the week, upon which winds locally will shift to a more southeasterly direction.
Calm, dry, and warm conditions will prevail this week, as high pressure remains over New Mexico.
So Monday looks smokier than today but only slightly warmer.
723 PM EDT Sun Sep 20 2020 High pressure over New England will continue to be in place through the most of the week and expand into the southeastern United States. Previous Discussion: High pressure will be in place over New England, leading to ideal radiational cooling both tonight and Monday night and a sunny Monday. Continued to go lower than model guidance by a few degrees with the lows overnight, given the ideal conditions for radiational cooling. As for the lows tonight, they should fall into the upper 20s and low 30s, enough for frost formation across most of the area. Temperatures look slightly warmer Monday night but it's another favorable setup for radiational cooling and some frost.
645 PM EDT Sun Sep 20 2020 High pressure will remain in place through the middle of the week with dry conditions and gradual warming. Upper level ridging with high pressure shifting east allows our area to continue to stay dry through Monday. Expect slowly warming temperatures across the atmospheric column between today and tomorrow allowing for warmer nighttime lows (low 40s) tonight and warmer daytime highs (low to mid 70s) Monday.
/issued 237 PM CDT Sun Sep 20 2020/ Another pleasant afternoon is in store region-wide as temperatures gradually rise into the lower 80s.
811 PM EDT Sun Sep 20 2020 High pressure will be near the area for the foreseeable future. High pressure will continue to dominate the Northeast and Mid- Atlantic. With a strong inversion setting up and increasing flow above the inversion, this will yield increasingly southeasterly flow over the warmer lakes overnight. Additionally, based upon how low the inversion looks to set up, some of the higher spots along the Chautauqua Ridge will likely remain a bit breezier overnight. Otherwise, the high overhead will yield another clear and cool night for most locations.
Expansive high pressure now extends from eastern Canada across the Great Lakes and into the southern Plains. With the center of this high over Quebec, cool/dry east-southeast flow persists over Se MI and has sustained sunny skies and cool temps. A mid level ridge over the western Great Lakes will move into the eastern Great Lakes Monday while folding over/dampening as a deep upper wave over Saskatchewan lifts across nrn Ontario Mon night. Se Mi will remain under the influence of this large low level anticyclone and associated dry air. High altitude smoke is slowly pushing toward Lake Mi and is expected to overspread Se Mi by Monday as the mid level ridge axis crests to the east, likely causing some hazy sunshine.
A lower stratus layer has managed to cling to some of the immediate coast around Humboldt Bay where temperatures were held to the lower 60's. The zonal flow pattern will begin to give way to short wave troughing on Monday.
High pressure over northern New England continues to extend ridging westward into lower MI. The winds will be strong enough over Lake Michigan to cause hazardous beach conditions across a portion of the coastline, primarily around/sough of Pt Betsie and west of the Mackinac Bridge.
Despite fewer clouds than 24 hours ago, temps this evening were running a degree or two warmer.
With clouds hanging around temps in the mid 60s were good, a few areas should fall into the lower 60s where clouds thin overnight. Isolated showers will also develop with the lower ceilings and linger through the afternoon Monday.
454 PM MDT Sun Sep 20 2020 Water vapor shows upper low over southern SASK with nearly zonal flow extending from the Northern Plains westward through the Pac NW. At the surface, breezy westerly winds across our zones in wake of cold front that moves through early this morning, with temps in the 70s to lower 80 on the plains.
500 PM MDT Sun Sep 20 2020 Zonal upper flow remains across the northern tier of state after the upper trough moving east of the Rockies moves out across across the norther Plains tonight. The upper low getting pulled into the flow over the southern plains from the Gulf Coast region should remain far enough east of the region to not affect the forecast area directly.
635 PM EDT Sun Sep 20 2020 A broad area of high pressure will be centered over New England on Monday then build westward to the Ohio Valley for the mid-week period. High pressure is centered over southern Quebec late this afternoon and will move to New England on Monday as the upper level ridge expands overhead. The very dry airmass will continue to favor a large diurnal spread with cool nights and temperatures dipping into the lower 40s.
815 PM EDT Sun Sep 20 2020 Have been busy this afternoon/evening monitoring the area of strong convection that continues to spin in SW FL around an associated low pressure area along the stalled frontal boundary that stretches to the E Coast. /issued 319 PM EDT Sun Sep 20 2020/ A stalled frontal boundary is in place across the southern half of the peninsula with a weak and shallow area of low pressure moving west along the boundary over central Florida this afternoon.
/Issued 308 PM CDT Sun Sep 20 2020/ High pressure remained common across much of the Southern Plains this afternoon with some hazy skies to partly cloudy skies observed over Eastern Oklahoma and Northwest Arkansas. To the south of the area of high pressure. Dewpoints have begun to slowly rise this afternoon into the mid 50s to mid 60s and this moisture should keep temps tonight a little warmer compared to the previous couple of night with lows in the 50s to low 60s forecast. the mid level ridge of high pressure is progged to begin lifting northeast allowing for moisture from Tropical Storm Beta to begin streaming northward into the region as the system nears the Texas Coast.
/Issued 249 PM EDT Sun Sep 20 2020/ With strong high pressure centered over the NE states at 1035mb and ridging down the spine of the Appalachians into the Carolinas and the local area, just a beautiful early fall day is unfolding. This is around 5 to 10 degrees cooler than the seasonal average. Strong high pressure and a very dry mid level is keeping temps down and rain out of the forecast for most of the week.
915 PM EDT Sun Sep 20 2020 Minor near term trend adjustments per recent obs, though forecast largely on track with mostly clear ridge dominated regime and mainly just some cirrus skirting across the southern CWA. /Issued 249 PM EDT Sun Sep 20 2020/ With strong high pressure centered over the NE states at 1035mb and ridging down the spine of the Appalachians into the Carolinas and the local area, just a beautiful early fall day is unfolding. This is around 5 to 10 degrees cooler than the seasonal average. Strong high pressure and a very dry mid level is keeping temps down and rain out of the forecast for most of the week.
732 PM EDT Sun Sep 20 2020 A broad area of high pressure will be centered over New England on Monday then build westward to the Ohio Valley for the mid-week period. High pressure is centered over southern Quebec late this afternoon and will move to New England on Monday as the upper level ridge expands overhead. The very dry airmass will continue to favor a large diurnal spread with cool nights and temperatures dipping into the lower 40s.
Continued dry and slightly warmer through Monday then little changes are expected through the rest of the week, with temperatures near seasonal averages. High pressure could bring the beginning of a more significant warmup by next Sunday.
959 PM EDT Sun Sep 20 2020 High pressure will be near the area for the foreseeable future. High pressure will continue to dominate the Northeast and Mid- Atlantic. With a strong inversion setting up and increasing flow above the inversion, this will yield increasingly southeasterly flow over the warmer lakes overnight as we are already seeing near Dunkirk. Additionally, based upon how low the inversion looks to set up, some of the higher spots along the Chautauqua Ridge will likely remain a bit breezier overnight. Otherwise, the high overhead will yield another clear and cool night for most locations.
500 mb heights will increase tomorrow as a ridge slightly strengthens over the Four Corners region. The slight subsidence associated with this ridge along with added smoke in the air should limit instability and shower activity tomorrow. A few showers should linger into the early evening Monday, mainly over the higher terrain to the southwest of Denver.
215 PM PDT Sun Sep 20 2020 Continued dry and slightly warmer through Monday then little changes are expected through the rest of the week, with temperatures near seasonal averages. High pressure could bring the beginning of a more significant warmup by next Sunday.
608 PM EDT Sun Sep 20 2020 High pressure over New England will continue to be in place through the most of the week and expand into the southeastern United States. Previous Discussion: High pressure will be in place over New England, leading to ideal radiational cooling both tonight and Monday night and a sunny Monday. Continued to go lower than model guidance by a few degrees with the lows overnight, given the ideal conditions for radiational cooling. As for the lows tonight, they should fall into the upper 20s and low 30s, enough for frost formation across most of the area. Temperatures look slightly warmer Monday night but it's another favorable setup for radiational cooling and some frost.
A weak cloud line developed over the island chain and a few locations in the Lower Keys saw quite a bit of rainfall. Taking a look at radar estimates and some sites provided through Weather Underground, Sugarloaf saw 2 to 3 inches of rain while other locations in the Lower Keys saw 1 to 2 inches. This low pressure then took a hard turn to the south between 7 at 8 pm and started to move towards our area. Short Term Update - Given the low level steering flow is from the northeast, cannot rule out convection over the mainland drifting southwest over the island chain overnight.
High pressure continues to dominate across the region this evening with mostly clear skies to prevail. VFR through the period as high pressure prevails. CDG Chattanooga Airport, TN 53 77 52 75 57 / 0 0 0 0 0 Knoxville McGhee Tyson Airport, TN 48 75 50 75 55 / 0 0 0 0 0 Oak Ridge, TN 49 75 49 76 55 / 0 0 0 0 0 Tri Cities Airport, TN 44 73 44 73 49 / 0 0 0 0 0.
541 PM EDT Sun Sep 20 2020 High pressure will build south into the region, providing dry and cool conditions through the middle of the week.
926 PM EDT Sun Sep 20 2020 High pressure will remain in control through most of the week. Afternoon Discussion: High pressure will be in place over New England, leading to ideal radiational cooling both tonight and Monday night and a sunny Monday. Continued to go lower than model guidance by a few degrees with the lows overnight, given the ideal conditions for radiational cooling. As for the lows tonight, they should fall into the upper 20s and low 30s, enough for frost formation across most of the area. Temperatures look slightly warmer Monday night but it's another favorable setup for radiational cooling and some frost.
Overall the rest of Sunday will remain rather benign with slightly above normal temperatures as a short wave ridge transits the region. Tonight a longwave upper trough will begin to move into the area. The trough will really make itself known in the form of Monday highs, dropping by 5-10 degrees over Sunday afternoon highs. The trough will start this cooling trend on Monday and remain into midweek then stall at a few degrees below climo.
644 PM EDT Sun Sep 20 2020 High pressure maintains dry weather and plenty of sunshine for much of this week. High pressure along with upper level ridging continue to keep mostly clear skies and dry weather for this period. Temperatures tonight will be chilly again, with lows down into the low to mid 40s in the lowlands and mid to upper 30s for the upper elevations. MOS guidance for the dewpoint temperatures in this area were also on the colder side, around the lower 30s for tonight. Tomorrow's high temperatures will continue to be below normal, similar to or just slightly warmer than today. Highs should be in the upper 60s to lower 70s for the lowlands and mid 50s to lower 60s for the highest elevations.
923 PM EDT Sun Sep 20 2020 A broad area of high pressure will be centered over New England on Monday then build westward to the Ohio Valley for the mid-week period. High pressure is centered over southern Quebec late this afternoon and will move to New England on Monday as the upper level ridge expands overhead. The very dry airmass will continue to favor a large diurnal spread with cool nights and temperatures dipping into the lower 40s.
The pressure gradient between this feature and a high pressure system off to the east will increase tonight into Monday. This is due to the strong high pressure that is centered over the northeastern CONUS. Southerly winds are expected to continue here on the west side of the high pressure, which will result in warming temperatures.
312 AM CDT Mon Sep 21 2020 RAP analysis had an upper ridge extending from the Southwest U. Southerly winds between 10-20 mph are expected as low pressure tracks across southern Ontario.
351 AM CDT Mon Sep 21 2020 (Issued 351 AM CDT Mon Sep 21 2020) Today through Tuesday: Quiet weather will continue through Tuesday under the influence of high pressure will to the east. Southerly winds on the western side of the high will continue to bring a milder airmass into southern Wisconsin the next couple days, with highs into the upper 70s by Tuesday.
/issued 237 PM CDT Sun Sep 20 2020/ Another pleasant afternoon is in store region-wide as temperatures gradually rise into the lower 80s. Ridging aloft over the southwestern CONUS will expand and strengthen Wed-Fri and promote increasing increasing mid-level hghts over our forecast area.
148 AM EDT Mon Sep 21 2020 High pressure will continue to extend across the area into the middle of the week. In the high levels some few to scattered cirrus will drift across the region overnight. Tweaked the lows in rural areas down a degree or so based on dry air still over the fa. For Monday, a mid level ridge axis will push east across the Great Lakes and Ohio Valley while surface ridging continues to extend from the St. Highs on Monday in the lower to mid 70s. High clouds will increase from the southwest Monday night on the back side of the mid level ridge. Lows again will generally fall into the lower to mid 40s. The first portion of the extended remains quiet as mid-level ridging and dry air dominate the region.
237 AM CDT Mon Sep 21 2020 Dry and pleasant conditions will continue today and tonight as high pressure remains centered east of our region.
115 AM EDT Mon Sep 21 2020 High pressure will build south into the region, providing dry and cool conditions through the middle of the week.
1258 AM EDT Mon Sep 21 2020 High pressure over New England will ridge westward across the region through the day.
102 AM EDT Mon Sep 21 2020 High pressure maintains dry weather and plenty of sunshine for much of this week. high pressure providing dry weather tonight. High pressure along with upper level ridging continue to keep mostly clear skies and dry weather for this period. Temperatures tonight will be chilly again, with lows down into the low to mid 40s in the lowlands and mid to upper 30s for the upper elevations. MOS guidance for the dewpoint temperatures in this area were also on the colder side, around the lower 30s for tonight. Tomorrow's high temperatures will continue to be below normal, similar to or just slightly warmer than today. Highs should be in the upper 60s to lower 70s for the lowlands and mid 50s to lower 60s for the highest elevations.
This high was cold and dry for mid to late September with temperatures in the 20s over portions of NY, VT, and ME even at 06z (well before daybreak). The high extended down the eastern seaboard deep into Florida and the NE Gulf of Mexico. The high will continue to dominate with cool and dry weather today and tonight. High pressure along the east coast will slowly weaken, but remain locked over the Appalachians and TN/OH Valley region.
150 AM EDT Mon Sep 21 2020 Minor near term trend adjustments per recent obs, though forecast largely on track with mostly clear ridge dominated regime and mainly just some cirrus skirting across the southern CWA. /Issued 249 PM EDT Sun Sep 20 2020/ With strong high pressure centered over the NE states at 1035mb and ridging down the spine of the Appalachians into the Carolinas and the local area, just a beautiful early fall day is unfolding. This is around 5 to 10 degrees cooler than the seasonal average. Strong high pressure and a very dry mid level is keeping temps down and rain out of the forecast for most of the week.
957 PM MDT Sun Sep 20 2020 Water vapor shows upper low over southern SASK with nearly zonal flow extending from the Northern Plains westward through the Pac NW. At the surface, breezy westerly winds across our zones in wake of cold front that moves through early this morning, with temps in the 70s to lower 80 on the plains.
304 AM CDT Mon Sep 21 2020 The central part of the CONUS remains under a mid-level ridge, placed between Tropical Storm Beta off the TX coast and a trough in the Northern Plains and southern Canada. Could see temps being a few degrees cooler than currently forecast since 850mb temps in OK are cooler and that air gets advected north with continued southerly flow; however 850mb flow weakens slightly into the daytime hours so this should only be a minor impact.
248 AM EDT Mon Sep 21 2020 A large high pressure system centered to the east of the area will settle/reform to the south and provide a lengthy period of south to southwest flow this week. For today, southeast flow will persist with the high still off to the east. This will lead to the "coolest" day of the week with the highs around 70 (warmest conditions should set up from the Flint area on into the Saginaw Valley and also far southeast portions of the area away from Lake Erie.
303 AM EDT Mon Sep 21 2020 Dry weather with gradually warming temperature can be expected this week under high pressure. High pressure across most of the Eastern CONUS should maintain dry weather and sunny skies today. High pressure is progged to move south across the Ohio and Tennessee valley region through mid week, maintaining dry weather and mostly clear skies.
117 AM EDT Mon Sep 21 2020 A large area of dry high pressure will cover much of the eastern United States tonight through Tuesday.
Today through Tuesday Zonal flow will turn southwest today in response to a longwave trof beginning to build into the Pacific Northwest. However, below freezing lows will continue in the coldest northern Elko County valleys.
305 AM CDT Mon Sep 21 2020 Concerns and impacts for the short term will revolve around upper low lifting NE across Manitoba today. Winds will decouple quickly with sunset with a weak ridge of high pressure moving across the northern plains overnight. Upper 40s and low 50s expected by Tuesday morning before another day of full solar and waa/thermal ridge axis brings temps into the 80s for much of the area.
A cold front will be approaching the area today. cooler air will push in and temperatures will fall.
The clouds will be associated with a cold front pushing through the region from the north.
1128 PM CST Wed Jan 31 2018 Low pressure passing through Ontario Canada pulling an Arctic cold front southward into the region, currently extending from western Lake Superior through central MN/SD. Our area still in the warm sector of the low under mostly sunny skies. High pressure/Arctic air mass builds in on Thursday for mostly sunny but bitter cold conditions.
Low clouds and even a few flurries or very light snow will precede an upper level trough as it crosses western Kansas early today. As the upper wave passes the low clouds and any light precipitation that does develop will decrease.
259 AM CST Thu Feb 1 2018 Today & Tonight: Cold front that crossed KS yesterday afternoon & evening ventured across most of OK during the night. STRONG & deep, mid-upper flow continues to dominate roughly the northern half of North America in wake of sharpening & positively tilted trof extending from Southern Hudson Bay to the Upper MS Valley. The strong & deep upper regime will drive Canadian High pressure SE across KS tonight & with clearing skies & diminishing winds, lows in the teens remain certain areawide. Fri-Sat Night: As the weakening Canadian-originated high crosses the Lower MS Valley a rapid warmup is still scheduled to commence on Fri with highs in the 40s with Sat's highs certain to reach 50 to 55 in most areas.
352 AM EST Thu Feb 1 2018 Atlantic high pressure continues to exert its influence over South Florida this morning, promoting a light northeasterly to easterly flow along the coast.
1050 PM CST Wed Jan 31 2018 South winds around 10 kts as pressure gradient invok approaching cold front remain in place. After 01/15z scattered decks with ocnl high mvfr to low ifr cigs until late aftn cold front results in quick wshft from nw-n. Otherwise, cold frontal boundary still expected to impinge the Four-State Region tomorrow aftn/evening, resulting in chances for isolated to scattered rain showers.
/issued 947 PM CST Wed Jan 31 2018/ A cold front is slowly moving toward the Mid-South tonight and is currently located from the lower Great Lakes to KSTL into Oklahoma. Overnight expect increasing mid and high clouds from the north and low clouds surging from the south, across the lower Mississippi Valley. /issued 331 PM CST Wed Jan 31 2018/ A few high clouds are streaming across north MS this afternoon but the air mass remains dry in the low-levels. Benign weather conditions are expected tonight, but a cold front will move across the CWA late tonight and early Thursday. Rain chances will increase throughout the day, primarily along and behind the cold front.
1055 PM CST Wed Jan 31 2018 Zonal flow prevailing over the Nation's midsection this afternoon as a low amplitude upper low continues to slowly move through eastern Manitoba and western Ontario. As we head into the overnight, dry conditions will prevail despite the passage of a secondary cold front early Thursday morning, as another spoke of energy dives south east across the upper Midwest. Following its passage, cold air will finally settle south over our region which will result in a noticeably cooler day tomorrow as highs only climb into the upper 20s to lower 30s. Following the aforementioned frontal passage, fcst models are in excellent agreement that arctic high pressure will settle south of our region, ensuring below normal temperatures continue right into the upcoming weekend.
Cold front slated to slip southeast through the forecast area today.
1040 PM CST Wed Jan 31 2018 A weak cold front poised just to the northeast of KPVW and KLBB will move southward past both terminals very early in the TAF period. /issued 319 PM CST Wed Jan 31 2018/ Dry and breezy westerly flow to the south of a cold front slowly advancing through the southern plains has resulted in near-record temperatures across our forecast area this afternoon.
Northwesterly flow aloft continues this evening and overnight with a low pressure system and warm front offshore. The warm front strengthens Thursday as it moves across the forecast area. Freezing levels will be rising with the warm advection into Thursday night and most of the precipitation will be rain at this point. Warm front will then bring rain in the afternoon and evening with ceilings bkn-ovc 030-060.
A cold front will continue moving through the area overnight. Cold front is moving through and is currently positioned from southwest Missouri across northeast Oklahoma and down through southwest Oklahoma into north-central Texas.
921 PM PST Wed Jan 31 2018 Strong high pressure aloft will remain anchored over the eastern Pacific for the foreseeable future.