Aikyam-Lab/Synoptic-Bench huggingface dataset:
526 AM MDT Tue Sep 3 2019 Water vapor shows upper trof crossing ND with upper ridge amplifying across the Intermountain West. At the surface, trof is moving across the eastern Dakotas with drier w/nw flow spreading into our zones. Breezy southerly winds develop on Wednesday with upper ridge building in, allowing temps to warm well into the 80s and lower 90s under mostly sunny skies.
Above normal temperatures with upper 80s and low 90s will return to the Northern Rockies today as a ridge of high pressure rebounds over the region. A dry cold front will push across western Montana and north- central Idaho Wednesday afternoon.
736 AM EDT Tue Sep 3 2019 High pressure will maintain dry weather until a Wednesday morning cold front spawns showers. That system is projected to continue developing eastward and to pull a cold front across the Upper Ohio on Wednesday morning. Current timing will limit destabilization and better mid level thermal troughing and wind support are projected n of the Great Lakes with the vorticity center; hence, rain potential is expected to be limited to some scattered shower activity along the immediate front.
high pressure throughout the column will dominate the next 36 hours before a weak cold front slides through the region late Wednesday. Mostly sunny skies will surge highs back into the low 90s for most with afternoon heat indices approaching triple digits across the southwest Delta counties. Placed an isolated sprinkle in the forecast across the north for tomorrow as the cold front passes through.
542 AM CDT Tue Sep 3 2019 A dry cold front will cross the local area today ushering in a cooler airmass and breezy northerly winds. Generally quiet weather is expected across the local area for the first couple of days of the extended periods as High pressure aloft builds across the plains.
558 AM CDT Tue Sep 3 2019 At 08Z, a mid-level ridge remained in place over the Four Corners region while a mid-level trough was moving eastward along the US and Canadian border west of Lake Superior. The cold front in Nebraska will advance southward into and through the forecast area today. Compressional warming ahead of the front along with southwest winds advecting in some warmer conditions from under the mid-level ridge to our west will combine to make for a hot and humid day, especially over central and east-central Kansas. High temperatures will only warm into the low 80s with dewpoints dropping into the upper 50s in many locations.
308 AM MDT Tue Sep 3 2019 Water vapor imagery showing upper trof sweeping across the northern high plains early this morning, while an associated cold front is just now pushing through southeast Wyoming. This front will bring relief from the heat across the plains with afternoon temperatures a good 15 degrees cooler across the plains. The upper ridge will once again build over the region on Wednesday, while a disturbance over the Northern Rockies induces a surface lee trough to deepen. The trough should be around the I25 corridor, allowing for showers and thunderstorms over and west into the mountains.
The warm advection trend will continue today ahead of a cold front, which will make its way through the local area this evening. The cold front will enter northern Missouri by the early to mid- afternoon, gradually progressing through central Missouri after sunset. Potential storms will taper off through the late evening and a cooler and drier air mass will fill in behind the frontal boundary as a broad region of high pressure over the Northern Plains slides south. This will also bring dew points to more refreshing values Wednesday afternoon, into the low to mid 50s.
This trough will push a front down the front range and provide a focus for showers and thunderstorms along the divide this afternoon and evening. Mid to high level clouds continue to stream in from the southwest so expect that high temperatures will be a few degrees cooler today. The focus for development will mainly be across the higher elevations of western Colorado and the Uintas. As moisture continues to increase so does the storm coverage on Wednesday with development taking place over the higher terrain in the afternoon.
/issued 325 AM CDT Tue Sep 3 2019/ Mid-level high pressure will dominate most of the forecast period heading into the weekend.
a cold front moves through the area today bringing northeast winds gusting as high as 35 mph to the area. High temperatures range from the mid 80s in the east to the low 90s across the west and south. Low temperatures are expected to be in the low to mid 60s.
Updated at 224 AM EDT Tue Sep 3 2019 High pressure reaching from New England to Texas will provide us with a mostly sunny, warm day once patchy morning fog burns off. about five degrees warmer than normal. Tonight a cold front will approach from the northwest, reaching the Ohio River around dawn Wednesday. Thunderstorms are expected to fire from northern Illinois to northern Ohio late this afternoon and evening, either along the front or an outflow boundary left from this morning's MCS over Wisconsin, and as a 5H trough and speed max move into the Great Lakes. The bulk of the storms should slide to the ESE into Ohio with the low level jet and ahead of the eastward- moving upper disturbance.
An upper low is expected to move WWD across the SWRN Gulf of Mexico/Bay of Campeche region today/tonight. The NHC expects the surface reflection to develop into a tropical cyclone today over the SWRN Gulf. At this time, the NHC expects the risk of torrential rain associated with this cyclone to remain south of Texas. Associated dynamics/moisture associated with the upper low is expected to generate isolated/scattered convection over the ERN/SRN CWA today/tonight.
921 AM CDT Tue Sep 3 2019 Overall forecast in good shape, with only minor adjustments to account for lingering showers near Baudette, MN and to expand mention of "sprinkles" with weak energy/good low level moisture rotating into the region with upper low. Will see stratus clouds already in the northern valley stream southeastward with cold front this morning. This will allow temps to fall into the low and mid 40s tonight.
A weak upper level cold front is currently moving through the area. While precipitation is not expected, we will see a return to somewhat cooler temperatures for Tuesday and Wednesday. Highs both days will be in the 80s, which is about 10 degrees cooler than temperatures from Labor Day. Overnight low temperatures will also be cooler in the low to mid 50s (compared to the low to mid 60s we are seeing right now).
Will see stratus clouds already in the northern valley stream southeastward with cold front this morning. This will allow temps to fall into the low and mid 40s tonight.
651 AM CDT Tue Sep 3 2019 Upper level ridge near the ArkLaTex will keep skies mostly clear for the entire forecast period. As the ridge settles over the area, winds will go calm and there could be some very brief fog around daybreak at a few sites tomorrow morning. /Today through Wednesday/ High pressure at the surface and aloft will persist through the short term period resulting in mostly clear skies throughout. High temperatures each day will average in the mid to upper 90s, with Wednesday being slightly warmer as the ridge builds in overhead.
Latest short term models keep the low stratus cloud cover limited to northwest, north central and James Valley areas today. A quiet and cooler day is expected today. Tonight will be quite cool as we remain under the influence of high pressure and winds diminish.
H500 ridging will remain in place to the west of the area, leaving Arkansas under weak nwrly flow aloft. As an H500 trough traverses the Great Lakes region, a surface cold front will move across the state on Wednesday providing slightly cooler and drier air near the end of the period.
Surface temperatures were warmer today and convective temperatures were reached sooner, and isolated thunderstorms have already begun. Cold front pushes through the area in the morning and should be out of the area or almost out of the area around 18z. Temperatures should be cooler due to early frontal passage. East Coast, high pressure sits over the southwest and south-central U.
543 AM EDT Tue Sep 3 2019 High pressure will maintain dry weather until a Wednesday morning cold front spawns showers. That system is projected to continue developing eastward and to pull a cold front across the Upper Ohio on Wednesday morning. Current timing will limit destabilization and better mid level thermal troughing and wind support are projected n of the Great Lakes with the vorticity center; hence, rain potential is expected to be limited to some scattered shower activity along the immediate front.
655 AM EDT Tue Sep 3 2019 Weak high pressure extending across the area early this morning will quickly move off to the east. A cold front will move through the region late tonight into Wednesday morning. High pressure will then build in for the remainder of the week. South winds will pick up a bit this afternoon as the gradient tightens ahead of an approaching cold front. Convection that develops ahead of a cold front will spread southeast into the forecast area during the mid to late evening. Cooling will lag the front a bit with areas along and south/east of I-71 still rising into the lower to mid 80s.
1055 AM EDT Tue Sep 3 2019 Water vapor imagery highlights an upper level trough which has carved lower heights well into the northeastern Gulf of Mexico and northern Florida. Meanwhile, Hurricane Dorian is moving north away from the Bahamas and Potential Tropical Cyclone 7 is moving west towards Mexico over the southwestern Gulf of Mexico. A col-region in the lower level kinematics is well to the west the Keys. We cancelled the advisory north and south of the Lower Keys. High tides are expected to run about a half foot to a foot above the predicted tides, including the Lower, Middle, and Upper Florida Keys. Reports from the Bayside communities of the Upper Keys indicate some of the low- lying neighborhoods have about a foot of water over the streets.
High pressure will maintain dry conditions through the afternoon.
311 PM EDT Tue Sep 3 2019 Updated at 255 PM EDT Tue Sep 3 2019 Main short-term weather player is a cold front currently extending across Wisconsin and Iowa.
The SE winds along with mid level ridging is helping get temperatures a few degrees above normal, with highs this afternoon peaking in the upper 80s to lower 90s. Dewpoints in the lower 70s area-wide are contributing to a muggy airmass, which is allowing heat indices to creep into the lower 100s. The southern extent of this ridge is taking on the form of a cold front and is currently located along the NE/MO border area. This cold front will continue to sag southward through the evening, which may kick off a round of isolated thunderstorms through the afternoon and evening. This cold front will continue to sag southward through the night, putting most of the area deeper within a cooler and drier air mass for Wednesday.
1145 AM CDT Tue Sep 3 2019 At 08Z, a mid-level ridge remained in place over the Four Corners region while a mid-level trough was moving eastward along the US and Canadian border west of Lake Superior. The cold front in Nebraska will advance southward into and through the forecast area today. Compressional warming ahead of the front along with southwest winds advecting in some warmer conditions from under the mid-level ridge to our west will combine to make for a hot and humid day, especially over central and east-central Kansas. High temperatures will only warm into the low 80s with dewpoints dropping into the upper 50s in many locations.
235 PM EDT Tue Sep 3 2019 A cold front moving out of the Great Lakes will spread thunderstorms into NY and PA on Wednesday.
Elsewhere, a mid to upper-level anticyclone was situated over the central and southern Rockies while a prominent vorticity lobe was moving onto the British Columbia and WA coasts. In the low levels, a cold front attendant to the Great Lakes upper-air system stretched from central IA into northwest KS, or generally along a Red Oak, IA to Seward, NE line as of 2:30 PM.
318 PM CDT Tue Sep 3 2019 The cold front currently moving through north central and western KS this afternoon will make making its way SSE down to northern Oklahoma by daybreak wednesday. The upper ridge that has brought northwesterly midlevel flow over the area will continue for the next couple of days bringing quiet dry conditions to the area. Slightly cooler, seasonable temps can be expected tomorrow behind the cold front with highs in the mid to upper 80s.
Breezy conditions will occur again today as the pressure gradient tightens between the hurricane and the high pressure to the west.
Upper level ridge will continue to keep the weather pattern quiet tonight through Wednesday. Main weather feature will be a weak cold front slowly moving and then stalling out near the Oklahoma border by morning. The stalled cold front will lift back northward as a warm front and the whole region should have south to southeast winds by the end of the day. Highs will range from the low 90s along the I-70 corridor to the mid 90s throughout the rest of the region.
1234 PM CDT Tue Sep 3 2019 A progressive upper trof will continue to move east-southeast across the Upper Midwest and Great Lakes today. The associated surface cold front still looks to reach roughly along the I-70 corridor in central Kansas by mid/late afternoon. Modestly cooler air is expected in the wake of the front for Wednesday with better drying/lower dew points felt across central Kansas.
Temperatures will warm just a bit more to the lower 90s and upper 80s by this afternoon. high pressure throughout the column will dominate the next 36 hours before a weak cold front slides through the region late Wednesday. Mostly sunny skies will surge highs back into the low 90s for most with afternoon heat indices approaching triple digits across the southwest Delta counties. Placed an isolated sprinkle in the forecast across the north for tomorrow as the cold front passes through.
118 PM EDT Tue Sep 3 2019 Updated at 224 AM EDT Tue Sep 3 2019 High pressure reaching from New England to Texas will provide us with a mostly sunny, warm day once patchy morning fog burns off. about five degrees warmer than normal. Tonight a cold front will approach from the northwest, reaching the Ohio River around dawn Wednesday. Thunderstorms are expected to fire from northern Illinois to northern Ohio late this afternoon and evening, either along the front or an outflow boundary left from this morning's MCS over Wisconsin, and as a 5H trough and speed max move into the Great Lakes. The bulk of the storms should slide to the ESE into Ohio with the low level jet and ahead of the eastward- moving upper disturbance.
1113 AM MDT Tue Sep 3 2019 Water vapor shows upper trof crossing ND with upper ridge amplifying across the Intermountain West. At the surface, trof is moving across the eastern Dakotas with drier w/nw flow spreading into our zones. Breezy southerly winds develop on Wednesday with upper ridge building in, allowing temps to warm well into the 80s and lower 90s under mostly sunny skies.
225 PM MDT Tue Sep 3 2019 Warming up across the CWA the next couple days as an upper high builds a bit over Colorado and the cooler airmass over the plains moves away.
1210 PM CDT Tue Sep 3 2019 A dry cold front will cross the local area today ushering in a cooler airmass and breezy northerly winds. Generally quiet weather is expected across the local area for the first couple of days of the extended periods as High pressure aloft builds across the plains.
Widespread cloud cover nd some virga continues to rotate around back side of upper low. Overall forecast in good shape, with only minor adjustments to account for lingering showers near Baudette, MN and to expand mention of "sprinkles" with weak energy/good low level moisture rotating into the region with upper low. Will see stratus clouds already in the northern valley stream southeastward with cold front this morning. This will allow temps to fall into the low and mid 40s tonight.
This is generally from Yellowstone and BigHorn Counties eastward at the lower elevations. High pressure riding will build again across the forecast area today and Wednesday.
313 PM CDT Tue Sep 3 2019 The near term period looks to remain fairly quiet across the area, with high pressure the dominant feature tonight into Wednesday morning. As the high slides east Wednesday afternoon, a fairly tight pressure gradient sets up across the west, then over the entire CWA Wednesday night, resulting in breezy conditions. Low temperatures tonight will be in the 40s to lower 50s, with highs on Wednesday ranging from the lower 70s east to the mid 80s southwest. Dry conditions with northwest flow aloft and high pressure at the sfc will cap off the work week.
Elsewhere, look for another day of above normal temperatures across south central Texas with highs in the lower 90s to near 100.
1010 AM CDT Tue Sep 3 2019 Upper-level ridge maintaining mostly clear skies across the region this morning. /issued 651 AM CDT Tue Sep 3 2019/ Upper level ridge near the ArkLaTex will keep skies mostly clear for the entire forecast period. As the ridge settles over the area, winds will go calm and there could be some very brief fog around daybreak at a few sites tomorrow morning. /Today through Wednesday/ High pressure at the surface and aloft will persist through the short term period resulting in mostly clear skies throughout. High temperatures each day will average in the mid to upper 90s, with Wednesday being slightly warmer as the ridge builds in overhead.
220 PM MDT Tue Sep 3 2019 Upper ridge trying to build into the area gets knocked down a bit tomorrow with an upper disturbance that moves east across southern Canada. An associated cold front will move in late in the day but temperatures will have a boost beforehand, reaching the mid 80s to mid 90s with the help of pre-frontal compressional heating. Winds do increase and with the lowering humidities, critical fire weather conditions may be close in some places in the western Fire Weather zones.
254 PM CDT Tue Sep 3 2019 A cold front will move across central and southeast Illinois tonight. High pressure will push into the region in the wake of the front bringing dry and cooler weather for the next few days. With 700 temp of 12C, it will likely take approach of a cold front currently from SW WI to SE IA to provide sufficient convergence to initiate significant convection. Temperatures following the frontal passage on Wednesday should be about 10 degrees cooler with much lower humidity. Northwest flow will dominate the Midwest through the end of the week as ridging develops over the Rockies/High Plains.
Tomorrow, a cold front will be moving SE across KY through the day.
920 AM PDT Tue Sep 3 2019 High pressure over the southwest will bring hot, humid weather this week with scattered afternoon showers and thunderstorms over the mountains and deserts. The weather will turn cooler and less humid this weekend as a trough of low pressure moves inland over the West Coast. Ocean water temperatures from 70- 75 were likely a contributing factor to the high humidity near the coast.
A weak cold front may make it south of KGUY with winds shifting to more east and northeasterly going past 06Z Wednesday, otherwise, fair weather conditions are expected to continue. A mid-level high continues to sit over southwestern Colorado, while a 500 mb trough moves across the Northern Plains towards the Great Lakes Region Tuesday night.
Otherwise, hot and relatively dry conditions as high pressure builds in.
An amplified ridge remains over much of the Western CONUS as an upper level trough slides through the Great Lakes region.
Inland area becoming increasingly under the influence of a ridge high pressure expanding east across the region. Otherwise, hot and relatively dry conditions as high pressure builds in.
The hot weather is expected to continue right through the the forecast period even with a couple of cold fronts flirting with the region.
1226 PM CDT Tue Sep 3 2019 Cold front lagging to the north early this morning, but still expected to move through northwest IA by noon. Some weak instability with this incoming cold front will allow scattered showers and isolated thunderstorms to develop so will maintain some small chance through about mid morning. Temperatures will be mild, highs mainly in the 70s, but late afternoon some locations will likely start to see temperatures fall a bit as the cooler air settles south. High pressure will build south into the area and provide a good set up for radiational cooling. High pressure will drift east during the day and southeast winds will gradually develop through the day.
305 PM EDT Tue Sep 3 2019 A cold front moving out of the Great Lakes will spread thunderstorms into NY and PA on Wednesday.
We remain under the influence of an upper level high which today is centered over SWRN CO.
/Tonight through Wednesday Night/ Upper-level ridge centered over Kansas and Oklahoma extending southeast through the ArkLaTex to maintain dry conditions through the short term period ending Wednesday night. Subsidence associated with upper-ridge to maintain high temperatures in the mid 90s. Drier dewpoints will keep heat index values below 105 degrees as well as allow overnight low temperatures to fall into the lower 70s tonight and Wednesday night.
1040 AM CDT Tue Sep 3 2019 Satellite imagery shows an upper-level ridge building over the southern Rockies and Plains, while a trough is driving an MCS over Illinois and Indiana this morning. The TN Valley remains on the eastern edge of the ridge, with high pressure over northern Alabama and southern Tennessee. Expect high pressure to keep skies mostly clear today, and bring temperatures up to near or a couple degrees warmer than what we saw yesterday. The pattern will generally remain unchanged through the first part of the short term period, as the ridge remains anchored over the Plains and into the TN Valley.
High pressure aloft centered near the Four Corners region will drift slowly east through the balance of the work week. High pressure finds itself over the Four Corners region this morning, bringing a prevailing southwest flow over Utah and southwest Wyoming. The ridge will move little through the work week, allowing moisture to continue to increase and spread northward.
Later tonight as the high center moves into the Red River Valley, southerly winds will develop over far western North Dakota. Look for highs from the low to mid 70s in the Turtle Mountains and James Valley to the lower 90s in the far southwest.
317 PM CDT Tue Sep 3 2019 Generally quiet conditions expected with the frontal passage this afternoon and evening due to significant dry air through the majority of the profile and lack of upper support; however, a few isolated, elevated showers/storms could pop up on the elevated 700 hPa cold front tonight where instability is based.
254 PM CDT Tue Sep 3 2019 No weather concerns in the short term as high pressure builds across the region resulting in clearing skies and decreasing winds.
There have been pockets of weak forcing and mid level moisture advection rotating across the region, that have supported sprinkles (or a few light showers), and this should end as the upper low exits and sun goes down. Wednesday-Wednesday night: A brief period of southerly return flow and mostly sunny skies is expected to bring warmer temps (compared to today).
427 PM EDT Tue Sep 3 2019 Surface ridging and benign very weak flow aloft resulted in fair wx today, with dew points hardly high enough to even support cu. Have limited this to places generally south of I-64, with the earlier arrival of the cold front limiting destabilization potential in our northern counties. The pressure gradient between Dorian and high pressure to our north will aid in pulling cooler and drier air south into our area overnight.
Synoptically, an upper level disturbance will move across southern Canada Wednesday pushing some cooler air south by Wednesday evening into our forecast area.