Aikyam-Lab/Synoptic-Bench huggingface dataset:
(Tonight through Monday night) High pressure has settled over TX today. These winds have brought cooler, drier air to South-Central Texas. Temperatures this afternoon are around five degrees cooler than 24 hours ago and dewpoints are five to ten degrees lower. High pressure will continue to dominate during the short term. The low level flow will be northeasterly to easterly. The warming trend will continue Monday night with lows about five degrees warmer.
A ridge of high pressure will bring another cool night to the Mid-South with temperatures ranging from the upper 40s north, and lower to middle 50s south.
This afternoon, an upper low continues to spin over Quebec, with ridging extending from the Rockies into the Plains. Otherwise, temperatures are coming in warmer than yesterday. Highs across the UP should range in the lower to mid 70s, though perhaps only the upper 60s along the shorelines in the eastern UP where westerly and SW flow is onshore. With ridging and high pressure returning, quiet and calm conditions are expected with some lake breezes possible in the afternoon. Cooler temps in the 60s are likely near Lake Superior in the east thanks to onshore flow. Monday night stays dry and quiet with light southerly winds, lows settle into the low to mid 50s.
Northern terminals have the highest potential for impacts.
Smoke aside, warm air advection along an upper ridge will bring back much warmer temperatures for tomorrow, with highs pushing back into the upper 70s to lower 80s across the region. A mainly dry week is expected as a pseudo-zonal upper level flow across the northern Plains and Great Lakes early in the week, then as a trough digs into the western U. , ridging will build across the western Great Lakes mid-late week.
315 PM EDT Sun Sep 8 2024 High pressure will be over the area for the upcoming week keeping the weather dry. Temperatures tonight will fall into the 30s for the mountain valleys with potential to dip into the lower to mid 30s for the Greenbrier Valley of WV and the sheltered valleys of the Virginia Highlands, and Burkes Garden. High pressure will continue to dominate the weather pattern across the Mid Atlantic, which should offer dry conditions throughout the first half of this work week.
Water vapor imagery this afternoon depicts a strong upper trough continuing to lift over Ontario as a mid-level ridge builds in over the western CONUS. At the surface, high pressure sits over the Ohio Valley as southerly winds dominate the Central Plains. The upper ridge to our west will look to push eastward ever so slightly throughout the week, bringing average to above-average high temperatures (80s to near 90) back to the region. Long-range deterministic models continue to indicate a strong upper trough making its way across the the north/west CONUS later on in the week. Breezy/gusty south winds will subside by this evening, picking back up again by mid-morning Monday, as lee troughing persists across the High Plains.
(Now through Monday night) Upper troughing across the eastern CONUS gradually erodes while generally zonal flow aloft prevails across the area. Likewise, expect increased cloud cover and cooler temperatures to remain confined mostly towards the coast while inland areas see warmer temperatures and less cloud cover. Inland we should see highs topping out in the lower to middle 80's while closer to the coast temperatures might get hung up in the lower 80's for highs. Overnight lows should warm as well going from the lower and middle 60's across the interior tonight to middle to upper 60's over the interior Monday night.
500mb ridging will push slowly east and flatten over the next few days.
1218 PM CDT Sun Sep 8 2024 (Today through Monday night) Mid to upper level high pressure is present over the Four Corners Region with northwest flow aloft for the FA today and tomorrow. Influence from the high pressure will continue to bring near normal to slightly above normal daytime temperatures both today and tomorrow, in the upper 80s to lower 90s. Tomorrow, is more likely to see the higher end of these ranges with a slightly stronger gradient in place.
146 PM EDT Sun Sep 8 2024 Cool, dry high pressure will build into the region today and should control our weather through the middle of the week with moderating temperatures. Low pressure moving out of the western Gulf of Mexico may bring rain into the picture late in the week. As of 140 AM EDT Sunday: Quiet weather expected across the area thru the near term, as dry high pressure builds in across the Central Appalachians. As of 111 AM EDT Sunday: The first part of the new week still looks like it will be a stretch of nice late summer weather across the western Carolinas/northeast GA, courtesy of high pressure to our N/NE.
High pressure has settled in across the Mid Mississippi River Valley and it will move east into the Middle Atlantic through tomorrow.
216 PM EDT Sun Sep 8 2024 High pressure will build across much of the central and eastern United States and persist through much of the week, favoring a warming and drying trend. The only exception will be across NW PA where a few showers may clip Erie County as a trough pushes across the region Monday. The highest gusts will occur close to Lake Erie and in the flatter terrain of NW OH. An upper level trough will be to our east and an upper level ridge will be building to our west with a northwest flow aloft over the eastern Great Lakes region Monday night. At the surface, a high pressure system will be over the Ohio Valley into the Mid-Atlantic region.
Still, appears that lows will drop into the 50s areawide, with the coolest readings in the lower 50s again across the low lying areas across the Hill Country, Edwards Plateau, and the Heartland. Highs on Monday will only be a degree or two warmer than what we are seeing today. (Monday night through next Sunday) Temperatures will slowly increase this week as the thermal ridge builds back over the area.
Upper air analysis this afternoon shows a high amplitude ridge with an axis along or just east of the Rockies. The ridge will gradually slide eastward over the region and this will help to send temperatures upward.
1021 AM CDT Sun Sep 8 2024 Late morning surface analysis places a 1025 mb ridge of high pressure centered over north central Missouri. CJC Fall-like temperatures will finish out the weekend as high pressure continues to dominate the weather pattern.
1054 AM MDT Sun Sep 8 2024 -Hot weather returns this week -Elevated fire weather conditions much of the week, with near critical conds at times -Shower chances return toward the later part of the week, along with slightly cooler weather Upper level ridge over the western NOAM will shift east this week, supporting hot temps with mainly dry weather. Expect mostly sunny skies today with warmer temps as highs will top out in the mid to upper 80s to low 90s.
Mid level water vapor imagery shows a clear cinnamon roll low spinning over southern Quebec east of a ridge over the Great Plains, keeping northwesterly flow aloft over the Western Great Lakes.
WV imagery shows the upper ridge invof the Four Corners, resulting in another bland short term.
A beautiful early September day is ongoing as high pressure from the Midwest begins to ridge across the area. An upper H5 trough to the N/NW will remain in place as it weakens thru Monday. Readings will drop into the low/mid 40s for the southern Poconos, Lehigh Valley and north NJ. The only potential blip in the continued period of tranquil weather will come late Monday into Monday evening as a trailing mid and upper level trough crosses through the region.
Surface winds W-SW 5-15kt after 15Z Sunday, with gusts to 25 kt in the higher elevations.
1 - NHC is beginning advisories on Potential Tropical Cyclone Six in the southwestern Gulf of Mexico.
Tonight looks to see the coolest air of the forecast period, as lows drop into the lower 50s north and middle to upper 50s south by sunrise. Tomorrow will see unrestricted daytime heating of much the same sort as today's, boosting highs into the low to mid 80s north and the mid to upper 80s south.
- At and above seasonal temperatures with daily afternoon showers and storms, mainly over and near the higher terrain through the middle of the week. Isolated thunderstorms across the area again today, with most storms over/near the higher terrain as of 2 pm. Low levels look slightly drier today than 24 hrs ago, while mid-levels have warmed a touch with building upper ridge, suggesting storm strength and coverage will be slightly reduced versus yesterday. On Monday, little change in the pattern with ridge overhead, and just a subtle increase in heights/mid level temps and a small decrease in surface moisture. Max temps likely to drift up a degf or two at many areas given slightly warmer mid-levels, and some mid 90s look likely over the lower Arkansas Valley.
246 PM MDT Sun Sep 8 2024 KEY MESSAGES: 1) Upper ridging will lead to hot and dry conditions through Monday. 2) Cooler and wetter weather are expected by the second half of the week as the upper level ridge breaks down. WEATHER PATTERN OVERVIEW: Upper level ridging will lead to hot and dry weather through Monday. Upper ridging looks to break down toward the middle of the week with ensembles showing temperatures returning to near normal with more unsettled weather conditions. LAST UPDATED: 2045Z FLIGHT CAT RANGE: VFR to MVFR DISCUSSION: High pressure will maintain hot and dry weather through Monday.
1150 AM CDT Sun Sep 8 2024 (Today through Monday afternoon) Weak mid level ridging will maintain its presence over the area early this week. Deep easterly flow will also keep temperatures in check with highs generally in the low to mid 80s and very comfortable lows in the 50s.
1239 PM EDT Sun Sep 8 2024 * Chilly start to the morning gives way to a slightly warmer day with highs expected to reach around 70 today. Chilly start to the morning will give way to a warmer albeit still below normal day as the upper trough begins to gradually peel away to the east. As the western edge of the aforementioned upper trough begins to vacate the central Great Lakes late tonight-early Monday, pool of vorticity is progged to cascade out of northern Ontario.
123 PM EDT Sun Sep 8 2024 Brisk and cooler than normal temperatures this afternoon with isolated showers over southern Adirondacks and the Lake George Region. Max temps will run 5-10 degrees below normal with highs in 60s in the valleys and 50s over the higher terrain. Upper low just north of the U.
1111 AM EDT Sun Sep 8 2024 - Mainly dry with increasingly warmer temperatures through Monday - Upper Ridging breaks down by end of the week Still expecting only scattered sprinkles to move into west-central Lower Michigan mid-late afternoon and continue into mid-southern Michigan during the first part of tonight.
A rex block develops as a tropical system over the western Gulf of Mexico moves northward into the Lower and Mississippi and Tennessee River valleys and a closed 500 mb high closes off over the Great Lakes. Passing high pressure turns winds southerly near the end of the TAF period.
Temperatures in the low to mid 40s could approach or break low temperature records at Lexington and Frankfort.
Looking at lows tonight to be a bit warmer than previous nights and bottoming out in the 50s with near 60F near the lakeshore. Will see these winds weaken by mid morning as the trough slides east. This paired with the upper-level ridge axis gradually sliding more eastward into the Upper Great Lakes will see temps warm up each day.
Winds becoming more southwesterly in the lower levels will transport warmer air toward Michigan from the central US. - Quiet through the end of the week A long period of dry weather will continue into the end of the week as an omega blocking pattern aloft features a building upper ridge overhead.
126 PM EDT Sun Sep 8 2024 - Mainly dry with increasingly warmer temperatures through Monday - Upper Ridging breaks down by end of the week Still expecting only scattered sprinkles to move into west-central Lower Michigan mid-late afternoon and continue into mid-southern Michigan during the first part of tonight.
237 PM EDT Sun Sep 8 2024 High pressure brings another extended dry stretch, with gradually warming temperatures through the week. High pressure remains in control across the area during the near term period, with dry conditions, and light surface winds. Another clear and cool night can be expected with a ridge/valley temperature split, and areas of fog in favored river valleys. Monday will be a few degrees warmer as the upper trough slides off to the east and heights build across the area.
A few showers sprouted in the Straits of Florida earlier this afternoon and brought measurable rainfall to most of the Lower Keys. Most showers have remained relatively shallow thanks to the drier air aloft, but one shower that is now north of the Lower Keys has managed to grow to over 30k feet. High pressure extends across the Florida Peninsula this afternoon, and marine observation platforms along the Reef are measuring east to southeast winds between 10 and 15 knots. Unfortunately (or fortunately if you like hot, humid conditions) our dew points are the highest in the country right now across the Florida Keys, with the Marathon ASOS recording dew points near 80 degrees.
1208 PM CDT Sun Sep 8 2024 (Rest of Today) Current temps have climbed into predom the lower 60s from their earlier lows in the upper 40s/mid 50s. A large dome of high pressure also continues to settle into the Midwest/OH Valley regions, providing a NE flow around 5-10MPH into the central TN Valley this Sun morning. Given the strong subsident pattern in place, skies should remain mostly sunny thru the afternoon hrs, as highs climb mainly into the lower 80s/near 80F.
Warm temperatures across the region persist into Monday, before a deep upper level trough brings a major cooldown and breezy winds. An upper level trough over the Pacific Northwest is contributing to slight cooling today into Monday, with high temperatures in the upper 80s to mid 90s in the inland valleys, near 100 in the warmest spots of the Central Coast, the 70s to the low 80s in the Bayshore, and the 60s along the Pacific coast. Low temperatures hover in the 50s in the lower elevations with temperatures reaching into the upper 60s and low 70s in the higher elevations.
145 PM EDT Sun Sep 8 2024 * High pressure will remain nearly stationary over the region through the end of the week, bringing abundant sunshine and dry weather for most. An upper low over Southern Quebec is progged to pull away from the region today, as surface ridging builds in from the Ohio Valley. In general, expect daybreak readings in the low to mid 40s. However, the cooler valleys of Laurel Highlands will likely dip into the upper 30s.
316 PM EDT Sun Sep 8 2024 High pressure will be firmly in control through the end of this week. High pressure continues to build in to the Mid-Atlantic through this afternoon and evening. High pressure remains in control to start the week which will result in another nice day. Some diurnally driven cumulus may develop, especially over the higher terrain, but skies overall should be mainly sunny.
Fairly similar conditions are expected today as yesterday, with high temperatures in the low to mid 80s. A developing area of low pressure over the Rockies and a potential developing tropical system in the Gulf will strengthen the pressure gradient over west central Texas. (Monday night through next Sunday) Temperatures will slowly increase this week as the thermal ridge builds back over the area.
MM/25 (Now through Monday) Upper troughing across the eastern CONUS gradually erodes while generally zonal flow aloft prevails across the area. Likewise, expect increased cloud cover and cooler temperatures to remain confined mostly towards the coast while inland areas see warmer temperatures and less cloud cover. Inland we should see highs topping out in the lower to middle 80's while closer to the coast temperatures might get hung up in the lower 80's for highs. Overnight lows should warm as well going from the lower and middle 60's across the interior tonight to middle to upper 60's over the interior Monday night.
228 PM EDT Sun Sep 8 2024 - Areas of showers late tonight, mainly eastern UP/ne LP - Warmer and mainly dry through the remainder of the week Pattern Synopsis and Forecast: Compact upper wave on the backside of an upper troughs northwest flow will move into the area this evening and tonight.
(Rest of tonight) A weakening mid-level vort max will progress southeastward across the TN Valley overnight, embedded within prevailing NW flow aloft of 15-20 knots around an upper low ejecting northeastward over southern Quebec. However, during the early morning hours on Monday, boundary layer flow will begin to veer to E as the ridge expands across the southern Mid-Atlantic states.
A cooling trend has commenced across western Washington today as an upper level trough swings across the Pacific Northwest. Upper level troughing will remain the dominant influence across the region through much of the week, bringing increased onshore flow, below normal temperatures, and some shower chances at times.
605 PM CDT Sun Sep 8 2024 1 - NHC is beginning advisories on Potential Tropical Cyclone Six in the southwestern Gulf of Mexico.
Low temps will cool into the low to mid 50s overnight. Pattern Synopsis and Forecast: Compact upper wave on the backside of an upper troughs northwest flow will move into the area this evening and tonight.
Temps still on track to bottom out in the low to mid 50s. 500mb ridging will push slowly east and flatten over the next few days.
501 PM EDT Sun Sep 8 2024 High pressure brings another extended dry stretch, with gradually warming temperatures through the week. High pressure remains in control across the area during the near term period, with dry conditions, and light surface winds. Another clear and cool night can be expected with a ridge/valley temperature split, and areas of fog in favored river valleys. Monday will be a few degrees warmer as the upper trough slides off to the east and heights build across the area.
742 PM EDT Sun Sep 8 2024 High pressure will be over the area for the upcoming week keeping the weather dry. Temperatures tonight will fall into the 30s for the mountain valleys with potential to dip into the lower to mid 30s for the Greenbrier Valley of WV and the sheltered valleys of the Virginia Highlands, and Burkes Garden. High pressure will continue to dominate the weather pattern across the Mid Atlantic, which should offer dry conditions throughout the first half of this work week.
606 PM CDT Sun Sep 8 2024 (Tonight through Monday night) High pressure has settled over TX today. These winds have brought cooler, drier air to South-Central Texas. Temperatures this afternoon are around five degrees cooler than 24 hours ago and dewpoints are five to ten degrees lower. High pressure will continue to dominate during the short term. The low level flow will be northeasterly to easterly. The warming trend will continue Monday night with lows about five degrees warmer.
1025 PM EDT Sun Sep 8 2024 High pressure will be firmly in control through the end of this week. High pressure continues to build in to the Mid-Atlantic through tonight. Forecast low temperatures by dawn Monday are mainly in the low to mid 40s, with low to mid 50s within the urban corridor and along the immediate coast. High pressure remains in control to start the week which will result in another nice day. Some diurnally driven cumulus may develop, especially over the higher terrain, but skies overall should be mainly sunny.
Low pressure is located well northeast of the area over Quebec, while high pressure stretches across the Ohio Valley. Winds becoming more southwesterly in the lower levels will transport warmer air toward Michigan from the central US. - Quiet through the end of the week A long period of dry weather will continue into the end of the week as an omega blocking pattern aloft features a building upper ridge overhead.
657 PM EDT Sun Sep 8 2024 High pressure will be firmly in control through the end of this week. High pressure continues to build in to the Mid-Atlantic through tonight. Forecast low temperatures by dawn Monday are mainly in the low to mid 40s, with low to mid 50s within the urban corridor and along the immediate coast. High pressure remains in control to start the week which will result in another nice day. Some diurnally driven cumulus may develop, especially over the higher terrain, but skies overall should be mainly sunny.
540 PM PDT Sun Sep 8 2024 Warm temperatures across the region persist into Monday, before a deep upper level trough brings a major cooldown and breezy winds. An upper level trough over the Pacific Northwest is contributing to slight cooling today into Monday, with high temperatures in the upper 80s to mid 90s in the inland valleys, near 100 in the warmest spots of the Central Coast, the 70s to the low 80s in the Bayshore, and the 60s along the Pacific coast. Low temperatures hover in the 50s in the lower elevations with temperatures reaching into the upper 60s and low 70s in the higher elevations.
Warmer than normal conditions will continue through the start of the week, with scattered showers and thunderstorms likely.
Another system will bring cooler temperatures and a chance for widespread rain during the middle of the week.
As mentioned in previous forecast, warmer temperatures are on the way for Monday, but on the plus side, RHs remain low so still should feel pretty nice out there. As we remain on the backside of the exiting upper-level trough, sinking air leading to higher pressure will remain dominant through most of the week. These amazingly cool temperatures are unfortunately going to depart us come tomorrow as ridging aloft starts to build over the southeast.
Water vapor imagery this afternoon depicts a strong upper trough continuing to lift over Ontario as a mid-level ridge builds in over the western CONUS. At the surface, high pressure sits over the Ohio Valley as southerly winds dominate the Central Plains. The upper ridge to our west will look to push eastward ever so slightly throughout the week, bringing average to above-average high temperatures (80s to near 90) back to the region. Long-range deterministic models continue to indicate a strong upper trough making its way across the the north/west CONUS later on in the week. Aviation concerns are expected to remain on the low side through the next 24 hours.
801 PM CDT Sun Sep 8 2024 - Temperatures climb the next several days, turning much warmer by the middle of the week. High pressure centered nearly overhead is allowing for lighter winds than yesterday as well, limiting any mixing that would help keep temperatures from falling rapidly. 37 Surface analysis early this afternoon depicts high pressure centered over central Illinois, keeping things cool and dry to close out the weekend. Temperatures will climb the next few days, becoming much warmer by midweek as upper ridging builds further east and amplifies.
633 PM EDT Sun Sep 8 2024 * High pressure will remain nearly stationary over the region through the end of the week, bringing abundant sunshine and dry weather for most. In general, expect daybreak readings in the low to mid 40s. However, the cooler valleys of Laurel Highlands will likely dip into the upper 30s.
Most areas will drop into the low to mid 50s with light winds. /Issued 224 PM CDT Sun Sep 8 2024/ /Monday Night Onward/ We'll continue to see a gradual uptick in temperatures through the first half of the new week in response to upper level ridging atop the region.
940 PM EDT Sun Sep 8 2024 High pressure will be firmly in control through the end of this week. High pressure continues to build in to the Mid-Atlantic through tonight. Forecast low temperatures by dawn Monday are mainly in the low to mid 40s, with low to mid 50s within the urban corridor and along the immediate coast. High pressure remains in control to start the week which will result in another nice day. Some diurnally driven cumulus may develop, especially over the higher terrain, but skies overall should be mainly sunny.