Aikyam-Lab/Synoptic-Bench huggingface dataset:
621 PM CDT Sun Jun 26 2022 Thanks to a trough moving through the Great Lakes and eastern Canada, we find ourselves behind a strong summer cold front with the subtropical ridge shifted westward over the West Coast. Some remaining clouds and moisture from immediately behind the front are slowly moving out this afternoon, but we are now solidly into the cooler part of the forecast.
632 PM CDT Sun Jun 26 2022 Currently have an upper trough over the Western Great Lakes region with water vapor imagery showing a mid level moisture plume extending from NM into CO and through KS. At the surface, high pressure extends from western Nebraska through western KS with the cold front now down across central TX. This will allow lee troughing to strengthen, getting us back into some return flow and a warming trend. Highs will be slightly warmer for Mon as they top out around 80 with upper 80s likely by Tue. This feature will eventually swing across the Northern Plains on Thu which will allow a cold front to start to work south across the Central Plains and will bring back shower and storm chances.
Otherwise, drier conditions are expected to take hold by this evening as ridging aloft building in across the Intermountain West begins to shift into the Western High Plains. Combined with increased cloud cover, look for highs only up into the lower/mid 70s(F).
Today through Tuesday Temperatures will return to more seasonal normals or slightly above normal today, as a ridge over the Great Basin and PACNW begins to shift eastward over the Northern Rockies. Above normal temperatures will be more widespread, especially east of the Divide Tuesday, as the ridge moves over the Cowboy State.
319 AM EDT Mon Jun 27 2022 Surface analysis this morning reveals a cold front pushing through portions of Kentucky and Tennessee, with slightly cooler temperatures much drier air advecting in from the northwest in its wake. Dewpoints in southern Indiana have fallen into the mid/upper 50s, while locations just ahead of the front in south-central or eastern Kentucky still have dewpoints in the low 70s. Daytime highs will generally climb into the low 80s, with considerably lower dewpoints compared to previous days to make it feel much more comfortable outside. Overnight, high pressure will slowly drift eastward and settle over the Ohio Valley. Along with plenty of sunshine, our afternoon highs will once again be in the low 80s with comfortable dew points near 50 degrees.
1231 AM CDT Mon Jun 27 2022 Updated suite of forecast products as surface summertime cold front continue pushing slowly southward across mid state region. Convection continuing to be noted around and in front of this surface cold front across southern portions of our area. A few tiny showers have been noted at times across our north-central counties, which are likely occurring due to weak WAA in the low levels as shown on forecast soundings.
234 AM CDT Mon Jun 27 2022 High pressure will be the dominant weather feature to start the work week.
Highs temperatures will be in upper 80s the low 90s Monday afternoon, with heat indices approaching triple digits.
320 AM CDT Mon Jun 27 2022 After a nice cool start to the day temperatures will be on the rise as the low levels warm. This southerly flow is also not expected to bring any moisture into the area, so humidity levels will again be on the lower side. Highs will generally be in the low to mid 80s. Tuesday will be another warm day but there are some hints that parts of mainly southwest MN may be a few degrees cooler. Not exactly significantly cooler but maybe highs closer to 80 vs mid 80s.
Believe that once these WWd moving outflow bndrys push W of the area by midnight, that the convection will pretty much be done as there is really no elevated forcing available on the Ern side of the upper ridge axis as it continues to retrograde W back into the Srn Plains. Otherwise, look for the advancing cold front to continue shifting south through the region this morning.
1108 PM EDT Sun Jun 26 2022 A cold front over the Great Lakes will push southeast across the region tonight into early Monday, then high pressure will build into the area.
1143 PM CDT Sun Jun 26 2022 Currently have an upper trough over the Western Great Lakes region with water vapor imagery showing a mid level moisture plume extending from NM into CO and through KS. At the surface, high pressure extends from western Nebraska through western KS with the cold front now down across central TX. This will allow lee troughing to strengthen, getting us back into some return flow and a warming trend. Highs will be slightly warmer for Mon as they top out around 80 with upper 80s likely by Tue. This feature will eventually swing across the Northern Plains on Thu which will allow a cold front to start to work south across the Central Plains and will bring back shower and storm chances.
224 AM MDT Mon Jun 27 2022 Current surface map places high pressure from the Dakotas into the central plains.
1154 PM CDT Sun Jun 26 2022 After the much needed rainfall yesterday, a cold front pushed through the area this morning. In this dry and cool airmass with the ridge becoming established overhead, lows tonight in the low to mid 50s away from the Chicago metro will be more typical of May or September than late June. Lenning By later Tuesday, the ridge that was overhead to start the week begins to break down and push farther south of the area. Return flow along the western side of the anticyclone funnels warmer and more humid air across IA into southern WI and northwest IL. Given the lingering subsidence associated with the ridge just to our south, will keep POPs in the chance to slight chance category for now, and mainly for areas north of I-90.
Showers and a few thunderstorms associated with a cold front will cross the area this morning. Cooler temperatures and lower dewpoints today and tonight. Discussion: A cold front, marked by a dewpoint gradient, is located from eastern OH through central KY to northern Middle TN at the moment, with an area of convection just ahead of it in eastern KY and WV.
It will be a cooler night with lows in the 40s and 50s. a fairly quiet summer day is on tap for the area as a weak ridge of high pressure builds over the western Great Lakes. A lake breeze could keep locations near Lake Michigan cooler in the afternoon.
Due to cloud cover and cooler temperatures in the vicinity of the front, instability will be limited and showers will likely be the more dominate weather type. Diurnal heating will be the primary trigger for development today as the upper forcing has weakened with the passing of the short wave trof. Better rain chances expected across the southern counties on Tuesday as an inverted surface trof develops near the I-85 corridor.
1032 PM CDT Sun Jun 26 2022 Thanks to a trough moving through the Great Lakes and eastern Canada, we find ourselves behind a strong summer cold front with the subtropical ridge shifted westward over the West Coast. Some remaining clouds and moisture from immediately behind the front are slowly moving out this afternoon, but we are now solidly into the cooler part of the forecast. Another trough in the Great Lakes sends a front southward, but it never quite makes it here, instead stalling and washing out across Iowa Tuesday night. Instead we become more under the influence of the ridge and see a return to hot temperatures by the end of the week.
Temperatures were in the low 60s to mid 50s as dewpoints hovering around 50 degrees were found across the area. High pressure was to our west, centered over Grand Island, NE. High pressure will drive the weather today with temperatures in the upper 70s to low 80s again. Did increase temps slightly today as H85 temps are slightly warmer than yesterday.
345 AM EDT Mon Jun 27 2022 High pressure and a cooler and drier airmass will build into the region through Tuesday. High pressure shifts to the east through midweek, resulting in warming temperatures.
Light northerly winds will move in behind the departing front, and will usher dry and much cooler air into eastern Kentucky. This pleasant air mass will stay in place for the next couple of days, as a ridge of high pressure builds into the region. Cooler than normal temperatures are on tap today through Tuesday as well, with highs in the upper 70s and lower 80s and lows in the 50s expected.
(Today and tonight) Early this morning, a cold front is approaching the Interstate 10 corridor and is forecast to continue to slowly move south this morning. PoPs were mainly confined south of Interstate 20, with the highest chances across our southern counties. Slightly cooler temperatures are forecast today.
315 AM EDT Mon Jun 27 2022 A cold front will move into the area from the northwest today, then push southeastward across the region through tonight. The front will stall out just south of North Carolina Tuesday morning and remain there through mid week, as cool high pressure builds in from the north.
Light northerly winds will move in behind the departing front, and will usher dry and much cooler air into eastern Kentucky. This pleasant air mass will stay in place for the next couple of days, as a ridge of high pressure builds into the region. Cooler than normal temperatures are on tap today through Tuesday as well, with highs in the upper 70s and lower 80s and lows in the 50s expected. Through the early half of the period, an upper ridge axis expands out of the desert Southwest across the southern states, promoting subsidence and dry mid to upper levels.
227 AM EDT Mon Jun 27 2022 Upper air pattern consists of a 500 mb trough in the Great Lakes region this morning. This trough moves to the lower Great Lakes by 00z tonight. Overall, this should translate to slightly below normal high temps gradually warming through the week, with a couple cooler than normal lows becoming near to just above normal. This ridge of high pressure will stick around Monday and provide the region with a mostly clear start of the work week. A cooler airmass building in behind today's cold front will stick around tonight and Monday, supporting lows in the 40s across most of the region. Things change Tuesday, as the next trough/cold front digs through Ontario and the Upper Great Lakes.
(This afternoon through Monday night) Upper ridge centered over TX today will shift west becoming centered over NV Monday as an upper trough moves across the NE US. By Tuesday morning the next upper low will arrive on the NW Coast. A weak cold front pushed down into the area overnight resulting in a bit cooler temperatures today for the northern half of the area. On Monday highest rain chance will shift south across the Lower Trans Pecos.
348 AM CDT Mon Jun 27 2022 Northwesterly flow aloft continues overhead as we remain between ridging across the western U. and a trough across the Great Lakes. At the surface, high pressure has moved overhead and is forecast to move southeast of the area by this afternoon. Latest CAM runs do develop some light QPF as the low-level jet strengthens and interacts with the front late tonight into early Tuesday morning across northeast Nebraska.
319 AM EDT Mon Jun 27 2022 Cold front exits the region this morning with high pressure moving in behind it. Dry and cooler conditions will then persist through mid week.
The culprit will be a cold front entering north Georgia this morning and sagging southward through the day. The front will more or less bisect the area by this afternoon with the highest PoPs in this vicinity. Even cooler conditions are forecast with highs perhaps struggling to reach the mid 80s for many in north Georgia.
Otherwise, drier conditions are expected to take hold by this evening as ridging aloft building in across the Intermountain West begins to shift into the Western High Plains. Combined with increased cloud cover, look for highs only up into the lower/mid 70s(F). The main upper trough axis then slides southeast into the Southern Plains as an upper ridge begins to amplify over the Intermountain West.
1047 PM MDT Sun Jun 26 2022 Ridging has nudged in warmer temperatures today, most notably east of the Divide where highs will peak 5 to 10 degrees warmer than yesterday. The ridge will strengthen on Monday and temperatures will return to above normal, generally in the 80s across lower elevations. Even with the building ridge, a few isolated showers and thunderstorms could form over the mountains, as well as across southern Wyoming. On that note, elevated fire weather conditions will return with relative humidity values dropping into the low to mid teens and a slightly increased wind. Ridge begins to shift east during the day Tuesday, as the west coast trough flattens it out.
Believe that once these WWd moving outflow bndrys push W of the area by midnight, that the convection will pretty much be done as there is really no elevated forcing available on the Ern side of the upper ridge axis as it continues to retrograde W back into the Srn Plains. Otherwise, elevated convective debris will linger across much of the region overnight, as a weak cold front continues to push S through E TX/SW AR this evening, nearing the I-20 corridor of E TX/N LA by or shortly before 12Z Monday.
247 AM EDT Mon Jun 27 2022 Dry and comfortable conditions are expected in the wake of a cold front this morning and will last through mid-week. A cold front is slowly advancing through our region this morning. CAM models current have cold front exiting over the Laurel Highlands by 12Z, dry weather in the wake of the front is likely.
With the high level cloud cover expected to linger through much of the night, lows temperatures tonight remain on track to only cool into the lower to mid 70s inland, with upper 70s at the beaches. A weak flattened upper ridge over the southern CONUS will continue to retreat westward in response to a broad upper trough moving passing over the Great lakes and Ohio River regions. Lows Monday night will be slightly cooler north of the boundary, with temperatures ranging from 69 to 73 inland, with mid 70s at the coast.
(The rest of tonight) The latest surface analysis indicates the cold front extends across central AR into nern TX, with high pressure centered over the Central Plains building southward into the area this evening.
1256 AM EDT Mon Jun 27 2022 Showers and storms will end tonight with the passage of a cold front. Dry and comfortable today with cooler temperatures.
Expect temperatures below normal on Monday as the thermal trough with 850 mb temperatures below 10C support daytime highs in the low to mid 70s for inland areas with some upper 60s across the Thumb. Greater lower level flow out of the southwest on Tuesday will bring up temperatures into the low 80s, which is right around normal.
136 AM EDT Mon Jun 27 2022 A cold front will finish pushing through Central PA this morning. High pressure will then build into the area, brining much drier air.
The cold front has progressed southward to the I-10 corridor with persistent northeasterly flow behind it continuing through this afternoon. Low temperatures tonight will fall into the low to mid 60s areawide. High temperatures tomorrow afternoon will stay below average, though will be a degree or two warmer than today.
Carlaw By later Tuesday, the ridge that was overhead to start the week begins to break down and push farther south of the area. Return flow along the western side of the anticyclone funnels warmer and more humid air across IA into southern WI and northwest IL. Given the lingering subsidence associated with the ridge just to our south, will keep POPs in the chance to slight chance category for now, and mainly for areas north of I-90.
456 AM EDT Mon Jun 27 2022 Upper air pattern consists of a 500 mb trough in the Great Lakes region this morning. This trough moves to the lower Great Lakes by 00z tonight. Southerly winds increase early tonight ahead of a more notable surface to 300 mb trough located over far northern Ontario by early Tuesday morning. The low, now centered over James Bay, continues to deepen through Tuesday mid- day as shower and thunderstorm chances increase from northwest to southeast Tuesday afternoon and evening over Upper Michigan. Locally heavy rainfall up to 1" under the strongest thunderstorms is possible as storms form along and ahead of the cold front. Dry conditions return to Upper Michigan by early Tuesday night as the mid and upper level trough shift out of the north-central U.
1228 AM CDT Mon Jun 27 2022 (Tonight) The cold front will move across the Tennessee Valley this evening into the overnight hours. The main upper level trough is well to the north across the Great Lakes and will lift out to the northeast during the overnight hours.
343 AM EDT Mon Jun 27 2022 Cold front exits the region this morning with high pressure moving in behind it. Dry and cooler conditions will then persist through mid week.
This wl keep sfc ridging in place ovr the Mid-South thru Tue, giving the region an much needed break fm the oppressive heat and humidity of the past week.
/issued 935 PM CDT Sun Jun 26 2022/ Cold front has moved through the Mid-South and the associated showers and thunderstorms have moves SE of the region. /issued 315 PM CDT Sun Jun 26 2022/ Early afternoon temperatures are all over the place across the Midsouth ranging from 98 degrees with a heat index of 107 at Tupelo to the lower 70s where rain has recently cooled the air. Numerous showers and thunderstorms continue across the Midsouth as a cold front slowly moves across the area. Cooler air will filter in across the remainder of the Midsouth tonight.
Guidance is near or just below 50F for most locations across western and north central Nebraska, so feel confident in shaving a few degrees off the lows tonight. Southerly low-level flow increases Monday as the high shifts farther to the east. The cold front that past through the area over the weekend will settle deep into TX and the southeast states later Monday. Temperatures will begin to warm Monday as warmer air advects back north, and highs look to reach the mid and upper 80s area wide. Ridging aloft begins to take hold across the Rockies on Tuesday.
A seasonably cool night on tap with temperatures in the low-50s over the plains, and in the 40s over the Black Hills. Upper level ridge builds over the western in the beginning half of the upcoming week. With the ridge comes higher temperatures with highs in the 80s to 90s on Monday and Tuesday.
Once the lower clouds clear out, high clouds wl cont stream acrs the region. Cooler and drier air will lag behind quite a bit, but the better airmass has slowly started to filter in across N/Wrn AR while the remainder of the state continues to swelter for one last afternoon.
Surface analysis depicts a broad trough covering the Bahamas and SOFL, with its axis near Lake Okeechobee. A seasonally weak subtropical ridge will extend over the w Atlc basin to the GA/SC coast. Bermuda high pressure wl slowly become more prominent across the Wrn Atlc just N of Fl by the weekend.
340 AM CDT Mon Jun 27 2022 Upper trough over eastern Canada and the Great Lakes, with ridging along the west coast of the US. Closer to home, troughing over the north central Gulf of Mexico, with the axis likely over our eastern coastal waters. Scattered convection over the coastal waters near the trough axis early this morning, but not much going on over land areas with the exception of lower Plaquemines Parish.
High surface pressure will build in over the Central and Southern Plains with north winds continuing to advect unseasonably cooler air across our area. A mid-level short- wave rotating through an upper ridge across the Southwestern U.
-- Warmer Tuesday, chance of thunderstorms Tuesday night -- After a much more seasonal day Tuesday temperature-wise, Tuesday night features rain chances across our northern zones, especially from US-10 northward.
417 AM EDT Mon Jun 27 2022 Upper air pattern consists of a 500 mb trough in the Great Lakes region this morning. This trough moves to the lower Great Lakes by 00z tonight. Overall, this should translate to slightly below normal high temps gradually warming through the week, with a couple cooler than normal lows becoming near to just above normal. This ridge of high pressure will stick around Monday and provide the region with a mostly clear start of the work week. A cooler airmass building in behind today's cold front will stick around tonight and Monday, supporting lows in the 40s across most of the region. Things change Tuesday, as the next trough/cold front digs through Ontario and the Upper Great Lakes.
205 AM EDT Mon Jun 27 2022 A cold front will finish pushing through Central PA this morning. High pressure will then build into the area, brining much drier air.
Even though a surface boundary will move through late Tuesday, stronger low-level southerly flow/warm advection will kick back in on Wed/Thur ahead of another approaching cold front.
Near the surface, a broad area of high pressure extends from the Colorado Rockies eastward into the Central Plains. This pattern has pushed not only cooler temperatures into the area but a much drier boundary layer across central and southwest KS this afternoon. This mid/upper moisture in combination with the right entrance region of the jet streak on the front side of the trough, is triggering weak convective showers. The main upper trough axis then slides southeast into the Southern Plains as an upper ridge begins to amplify over the Intermountain West.
117 AM EDT Mon Jun 27 2022 High pressure will continue to slide offshore tonight.
A temperature gradient has emerged with warmer temps in the east as compared to the west due to a combination of cooler air aloft already having advected into the west as well as longer cloud coverage temporally-speaking. Overall, this should translate to slightly below normal high temps gradually warming through the week, with a couple cooler than normal lows becoming near to just above normal. This ridge of high pressure will stick around Monday and provide the region with a mostly clear start of the work week. A cooler airmass building in behind today's cold front will stick around tonight and Monday, supporting lows in the 40s across most of the region. Things change Tuesday, as the next trough/cold front digs through Ontario and the Upper Great Lakes.
404 AM EDT Mon Jun 27 2022 Dynamic upper level trough complex over northern Ontario/near James Bay has resulted in tight northerly gradient flow over Southeast Michigan.
Radiational cooling keeps temps cooler than average as well, with lows in the lower to mid 50s. With WAA and southerly flow at low levels returning, expect Monday to be warmer than today, topping out near normal - in the lower to mid 80s. Mid level lapse rates are also on the low end for severe weather potential, mostly < 7 deg C/km. Outside of convective chances, expect some increase in clouds Monday night with lows in the lower 60s. Ridge continues to build in the western CONUS through mid week, pushed eastward by a developing low over the Pacific Northwest. As this low deepens and treks across southern Canada, the ridge flattens a bit.
High pressure remains over the area until Tuesday, when southerly return flow will develop once more.
356 AM EDT Mon Jun 27 2022 Dry and comfortable conditions are expected in the wake of a cold front this morning and will last through mid-week. Cooler and less humid air will overspread the region this morning behind an exiting cold front.
An upper ridge will keep the area dry today. Tuesday will be a different story, as stronger energy crashes the ridge down. Models continue to show the low that is currently over the north Pacific slowly moving into the Canadian Prairies and flattening the ridge that has been the major driver of the weather the last few days. With the lower heights as the flow becomes zonal, expecting showers and thunderstorms to develop with afternoon mixing.