Aikyam-Lab/Synoptic-Bench huggingface dataset:
257 AM EDT Mon Aug 2 2021 Fair, pleasant, and seasonably cool (comfortable) conditions early this week will trend warmer with a gradual increase in precipitation potential through late week. Most areas appear to stay dry with temps trending slightly warmer through Wed. The late week period is expected to become more unsettled as the mean upper trough position extends from the central GLAKS to the Tennessee River Valley, leaving the eastern seaboard susceptible to deeper moisture from the southeast states and western Atlantic. Conditions will quickly improve Monday morning, as high pressure builds into the area.
Broad CAA in the low levels will work two fold, continuing to decrease low level temperatures and build pressure near the surface. The cool temperatures in the low levels extends aloft as an upper level low becomes cut off from the jet stream. Highly amplified upper level flow across the country will persist through late week with a ridge out west and a trough over the eastern half of the country.
Made some minor adjustments to lows tonight (slightly cooler) and highs tomorrow (slightly warmer) based on recent verification trends. Upper level analysis places high amplitude ridge over the Rockies. On Monday, not much new to say as western ridge remains the dominate feature. Western ridge remains the dominate feature.
335 AM CDT Mon Aug 2 2021 Persistent upper level pattern of an amplified ridge over the western CONUS continues, with dry, high pressure over the Northern Plains. Through the week the western CONUS ridge gradually breaks down, culminating in a potent trough developing by the end of the week.
320 AM CDT Mon Aug 2 2021 Currently have upper troughing extending from the eastern Great Lakes down into the Ohio Valley with strong upper ridging extending from the Northern Rockies down into the Desert Southwest. At the surface, high pressure extends from the Upper Mississippi Valley into the southern High Plains. Not much is expected to change in the overall pattern for today through Tue with northwest flow aloft remaining over the Plains which will be reinforced by additional upper energy tracking out of the Upper Mississippi Valley and into the base of the trough by Tue morning.
237 AM EDT Mon Aug 2 2021 From a synoptic perspective, an omega block over the spine of the Rockies has led to a persistent deep high amplitude trough along the eastern states. This in turn has shunted the Bermuda High to the east and south, bringing the axis of the ridge farther south than climatology to its current position just north of the Keys.
111 AM EDT Mon Aug 2 2021 High pressure building into the region today will provide pleasant weather through much of the week.
Fog and low clouds this morning will give way to mostly sunny skies this afternoon with highs in the low to mid 70s. Drier and warmer weather returns towards the latter half of the week. Fog and low stratus this morning should give way to mostly sunny skies by this afternoon as high pressure pushes into the area. Temperatures today will be pleasant, although still below normal, in the low/mid 70s under light N/NW winds.
With the very moist airmass in place along and south of the sagging cold front, any convection will be good rain producers. The winds are lending to slowly eastward moving storms, with water issues a possibility, especially if training cells are realized, or a northerly component in thunderstorm movement over the cold front. Low temperatures in the low to mid 70s are expected Monday night, with high temperatures in the 83-87 degree range expected Tuesday.
459 AM EDT Mon Aug 2 2021 Well defined upper level trough continues to cut across the state early this morning, producing a few scattered showers from the Southern Tier to the Finger Lakes.
241 AM CDT Mon Aug 2 2021 High pressure will be centered just north of the area with northeast flow over the region today. A mid level trof will persist through mid week, keeping our temperatures a bit below normal and humidity levels decent for early August. Also, expect more clouds late morning and afternoon each day than what the NBM shows given sounding profiles are fairly moist 4-7k/ft, and with the presence of the trof.
1041 PM MDT Sun Aug 1 2021 Current surface analysis shows weak high pressure centered to the east of the area, with frontal boundary to the west and south of the region. Upper level analysis shows ridging over the Rockies into southwest Canada, with dry northwest flow aloft across the northern and central Plains. Temps are mostly in the 80s, with 70s over the higher Black Hills. A general ridging pattern will stay in place across the western US this week, with some buckling at times as weak disturbances try to move through it from the Pacific NW into the northern Plains. Storm chances look to be minimal much of the week, especially in the near term as the ridge holds strong.
211 AM MDT Mon Aug 2 2021 Upper ridge will be over the region today with hot and dry weather. More cloud cover will allow temperatures on Tuesday to be slightly cooler.
Persistent northwest flow through the mid-levels and a low-level anticyclone edging into the forecast area will keep conditions largely clear and dry today. These cooler temperatures mixing down to the surface will counteract some of the diurnal heating to keep surface temperatures peaking in the low 80s (F) across the area. The low-level anticyclone will continue across the region overnight. What is more certain is that the PV anomaly will bring another reinforcing shot of cooler air to the region, producing a carbon copy of Monday's conditions on Tuesday. Temperatures will peak in the low 80s.
358 AM EDT Mon Aug 2 2021 High pressure will build north of the region through mid week, then weaken during the second half of the week.
An upper level ridge is in place over the western U. while and upper level trough exists over the eastern U. High pressure will build at the surface, leading to warming temperatures and hindering cloud development in Nebraska.
The main headline will be the below normal temperatures with highs in the lower 80s this afternoon. For tonight, overnight lows will fall into the lower 60s across much of the area.
925 AM EDT Mon Aug 2 2021 High pressure will build north of the region through mid week, then weaken during the second half of the week.
406 AM CDT Mon Aug 2 2021 A much more quiet and cooler pattern is in store for the Mid South this week. Expect a gradual warming trend near the end of the week as temperatures climb back into the lower 90s.
A beautiful day lies ahead with cooler and less humid conditions under mostly sunny skies. Latest surface analysis places the cold front just north of the KY/TN border with a 1024mb high pressure centered over central IA. Regarding temperatures, advective component in the low levels will be rather weak today. Massie-Rose 1000-850 thickness technique suggests max temps reaching into the low 80s, but will go ahead an bump temperatures up a degree with little abated insolation. Still expect to see most places hit the low 80s, but urban areas (namely SDF and BWG) may reach mid 80s. General upper troughing will persist over the eastern United States through at least mid-week before a somewhat more zonal pattern, with embedded disturbances, sets up later in the week and into the weekend.
412 AM CDT Mon Aug 2 2021 An unseasonably amplified pattern is taking shape over North America with a strong ridge over the Rockies and a broad trough over the Great Lakes region/E CONUS. At the surface, high pressure sprawls across the northern plains and upper MS valley will build eastward today. Mostly sunny skies becoming more hazy this evening and high temperatures in the lower 80s and upper 70s. Tuesday will be similar to Monday, but with warmer temperatures in the lower to mid 80s and some lingering smoke/haze aloft. The trough will shift southeast and allow ridging to build into the Plains and Upper Midwest early in the period.
801 AM EDT Mon Aug 2 2021 A weakening cold front moves east of the region this morning. High pressure then builds into the area through midweek. Meanwhile, a nearly stationary frontal boundary south and east of the area will have waves of low pressure moving along the front. The boundary may move back towards the area at some point during the mid to late week period which would bring waves of low pressure closer to the area.
518 AM EDT Mon Aug 2 2021 High pressure provides cooler-than-normal temperatures through Tuesday.
Tuesday will much drier across the area except for the far western and southern portions of the CWA where isolated convection will be possible over the higher terrain. High temperatures will be a few degrees warmer Tuesday afternoon, but should still remain below normal in the upper 80s to lower 90s.
602 AM CDT Mon Aug 2 2021 An unseasonably amplified pattern is taking shape over North America with a strong ridge over the Rockies and a broad trough over the Great Lakes region/E CONUS. At the surface, high pressure sprawls across the northern plains and upper MS valley will build eastward today. Mostly sunny skies becoming more hazy this evening and high temperatures in the lower 80s and upper 70s. Tuesday will be similar to Monday, but with warmer temperatures in the lower to mid 80s and some lingering smoke/haze aloft. The trough will shift southeast and allow ridging to build into the Plains and Upper Midwest early in the period.
Impacts remain smoke related as high pressure persists today into tomorrow across the northern plains. Highs today will be warmer than yesterday with low to mid 80s expected as long as the smoke is not too thick to significantly damped temps. Heading into the weekend, the prominent ridge to our west/southwest will weaken and flatten, allowing for more precip chances, and possibly a wind shift that would give us a reprieve from the smoke.
NorCal remains between high pressure centered over the lower Colorado river valley and an eastern Pacific trough. Trough will slowly move east over northern California through the week, as the high flattens. Heights will briefly rise Tuesday ahead of trough allowing for above normal temperatures in the upper 90's to low 100's.
Some pockets of vorticity advection coupled with the trough progression will contribute enough forcing to initiate afternoon showers and thunderstorms from the Laramie Range westward.
Persistent upper level pattern of an amplified ridge over the western CONUS continues, with dry, high pressure over the Northern Plains. Through the week the western CONUS ridge gradually breaks down, culminating in a potent trough developing by the end of the week.
Thereafter, strengthening high pressure could lead to occasional weak nocturnal surges through the end of the week.
This overall trend will continue this morning then the highest chances will shift to the interior and eastern half of the Florida peninsula by late afternoon and evening. At the surface, the sub-tropical ridge axis will continue to ridge across southern Florida today and tonight, with southwesterly to westerly flow persisting. Atmospheric moisture will increase from what was observed the last couple of days, resulting in scattered to numerous showers and storms, with the highest coverage over the interior.
Expect VFR conditions to prevail across the Rio Grande Valley the rest of the morning into this afternoon even as low to mid level moisture increases across central Texas today as a weak cold front moves into south Texas this afternoon.
/issued 132 AM CDT Mon Aug 2 2021/ An upper level ridge will remain positioned just to the west of the region today. The upper level ridge axis will actually shift slightly to the east today resulting in minor height rises overhead. The high precipitable water values we have observed the past several days will take a major hit with this drier air moving in. Although we will be drier today, one benefit will be cooler than average temperatures. A fairly benign pattern is forecast to encompass the CWA this week, though there exists some potential for diurnally-driven convection to develop along the weakening quasi-stationary front across eastern New Mexico as the mid/upper-level anticyclone strengthens over the Desert Southwest/Great Basin regions.
1033 AM EDT Mon Aug 2 2021 A weakening cold front moves east of the region this morning. High pressure then builds into the area through midweek. Meanwhile, a nearly stationary frontal boundary south and east of the area will have waves of low pressure moving along the front. The boundary may move back towards the area at some point during the mid to late week period which would bring waves of low pressure closer to the area.
The winds will enhance mid week as a trough moves across northern California and the northern Great Basin.
Expect cooler temperatures today with highs in the 80s.
High pressure will build into the region Monday, bringing dry conditions to start the work week. Drier air should move in late this morning as high pressure builds into the region. High pressure will start building into the region today. High pressure remains in control on Tuesday with temperatures climbing into the mid to upper 70s in most areas.
450 AM MDT Mon Aug 2 2021 The upper ridge over the western CONUS is expected to remain for much of this week, but begins to break down a bit by Tuesday as the upper trough deepens over the eastern CONUS.
527 AM EDT Mon Aug 2 2021 A weakening cold front moves east of the region this morning. High pressure then builds into the area through midweek. Meanwhile, a nearly stationary frontal boundary south and east of the area will have waves of low pressure moving along the front. The boundary may move back towards the area at some point during the mid to late week period which would bring waves of low pressure closer to the area.
Canadian high pressure was situated over the region early this morning.
High pressure centered over the western Great Lakes this morning will expand east into the eastern Great Lakes this afternoon through tonight, with a return to dry weather. The higher terrain of Lewis County will likely see a little more congested cumulus development. Even with the sunshine, temperatures will be on the cooler side of normal with highs peaking in the mid 70s across the lake plains and upper 60s to low 70s across the higher terrain. Lows will drop back into the 50s in most locations, with upper 40s in the cooler Southern Tier valleys and Lewis County. Broad upper troughing will remain over the area through the period.
At the surface, high pressure is noted over the Panhandles with light and variable winds.
623 AM CDT Mon Aug 2 2021 Currently have upper troughing extending from the eastern Great Lakes down into the Ohio Valley with strong upper ridging extending from the Northern Rockies down into the Desert Southwest. At the surface, high pressure extends from the Upper Mississippi Valley into the southern High Plains. Not much is expected to change in the overall pattern for today through Tue with northwest flow aloft remaining over the Plains which will be reinforced by additional upper energy tracking out of the Upper Mississippi Valley and into the base of the trough by Tue morning.
609 AM EDT Mon Aug 2 2021 Quiet weather is expected through the week as high pressure lingers. Comfortable 50s dewpoints will persist today into tomorrow under weak low level ridging.
715 AM EDT Mon Aug 2 2021 Fair, pleasant, and seasonably cool (comfortable) conditions early this week will trend warmer with a gradual increase in precipitation potential through late week. Most areas appear to stay dry with temps trending slightly warmer through Wed. The late week period is expected to become more unsettled as the mean upper trough position extends from the central GLAKS to the Tennessee River Valley, leaving the eastern seaboard susceptible to deeper moisture from the southeast states and western Atlantic.
Today through Tuesday afternoon Moisture is moving eastward as a weak upper Low starts to push in a little off of the eastern Pacific. One area that this is more probable to occur is in very northwestern Humboldt County, as a little Pacific moisture is transported via the upper Low and swings over the ridge. Temperatures will quickly heat back up today into the mid 80's to lower 90's and then into the mid 90's Tuesday (back to the lower 100's in Humboldt County), as further drying takes place.
With slightly cooler temperatures this afternoon compared to yesterday, heat advisory conditions are not expected with heat indices generally ranging from 105 to 109 degrees, however, some locations from Live Oak to Bee and San Patricio down to Kleberg Counties could briefly see heat indices reach 111 degrees this afternoon. With the expected cloud cover and precipitation across the region tomorrow, temperatures will be slightly cooler with temperatures ranging from the lower 90s near the coast to the upper 90s across the western areas.
High pressure over the area will keep northwest winds light, staying less than 10kts.
The upper trough will become detached from the stronger westerlies to the north tonight and begin to sag over the western Great Lakes. Weak moist advection to the east of the trough axis will mainly fuel an increase in cloud cover over northeast WV tonight.
657 AM EDT Mon Aug 2 2021 Dry weather is forecast for today as high pressure builds across the Great Lakes.
544 AM CDT Mon Aug 2 2021 High pressure will be centered just north of the area with northeast flow over the region today. A mid level trof will persist through mid week, keeping our temperatures a bit below normal and humidity levels decent for early August. Also, expect more clouds late morning and afternoon each day than what the NBM shows given sounding profiles are fairly moist 4-7k/ft, and with the presence of the trof.
1042 AM EDT Mon Aug 2 2021 Dry weather is forecast for today as high pressure builds across the Great Lakes.
616 AM CDT Mon Aug 2 2021 Mid to upper level ridge over the western CONUS is expected to remain in place through Tuesday, but with some height falls as energy digs into the eastern CONUS. The upper ridge will continue to promote a dry forecast through the early part of this work week. Max temperatures will remain above normal for the period under the influence of the upper ridge. The western CONUS ridge that's been in place for quite some time will mostly stay put through the end of the week.
746 AM EDT Mon Aug 2 2021 High pressure provides cooler-than-normal temperatures through Tuesday.
/issued 406 AM CDT Mon Aug 2 2021/ A much more quiet and cooler pattern is in store for the Mid South this week. Expect a gradual warming trend near the end of the week as temperatures climb back into the lower 90s.
GFS numerical guidance suggests the MaxT forecast may be a degree two on the high side, but didn't change much since it's reasonably close to the going forecast. Persistent upper level pattern of an amplified ridge over the western CONUS continues, with dry, high pressure over the Northern Plains. Through the week the western CONUS ridge gradually breaks down, culminating in a potent trough developing by the end of the week.
The latest HRRR guidance shows some reduction in visibility possible, and the stagnant air mass should keep the low level particulates in place, so an Air Quality alert was issued for the northern half of Wisconsin. Dry conditions are expected, and afternoon highs will be a few degrees warmer than they were today with winds becoming southwesterly.
139 PM EDT Mon Aug 2 2021 Mostly sunny skies will persist this afternoon with highs in the low to mid 70s. Drier and warmer weather returns towards the latter half of the week. Fog and low stratus this morning should give way to mostly sunny skies by this afternoon as high pressure pushes into the area. Temperatures today will be pleasant, although still below normal, in the low/mid 70s under light N/NW winds.
Scattered SHRA may affect both Nrn and Srn sites today as a cold front clears the area. which is in vicinity of the cold front that moved through the state on Sun. Lows Tue night will be even cooler than Mon night.
Mid to upper level ridge over the western CONUS is expected to remain in place through Tuesday, but with some height falls as energy digs into the eastern CONUS. The upper ridge will continue to promote a dry forecast through the early part of this work week. Max temperatures will remain above normal for the period under the influence of the upper ridge. The western CONUS ridge that's been in place for quite some time will mostly stay put through the end of the week.
With skies expected to clear this evening and overnight, the dry airmass in place, combined with light winds will allow temperatures to drop back into the low to mid 50s away from Chicago once again, with a smattering of near 50 degree readings not out of the question in our typical cool/outlying locales. High temperatures should be a degree a few degrees warmer than today.
208 PM CDT Mon Aug 2 2021 An unseasonably amplified pattern is taking shape over North America with a strong ridge over the Rockies and a broad trough over the Great Lakes region/E CONUS. At the surface, high pressure sprawls across the northern plains and upper MS valley will build eastward today. Mostly sunny skies becoming more hazy this evening and high temperatures in the lower 80s and upper 70s. Tuesday will be similar to Monday, but with warmer temperatures in the lower to mid 80s and some lingering smoke/haze aloft. The trough will shift southeast and allow ridging to build into the Plains and Upper Midwest early in the period.
This is all likely tied to a weak MCV/low pressure area over the lower Mississippi Valley. Otherwise, a very pleasant day across the region -- as a cooler air mass takes hold.
Warmer and more unsettled weather is expected by the weekend. High pressure tonight with good radiational cooling conditions. Some of the colder spots across northern portions of the area will briefly radiate down into the lower 40s by daybreak.
The result will be continued cooler than normal temperatures and dry weather for the remainder of the day given the dry and stable airmass.
Meanwhile, a mid level trof will persist in the area. This trof and minor impulses within it may be the source of increased cloudiness, mainly on Tue. Highs will generally be in the upper 70s to the lower half of the 80s, with lows in the upper 50s to lower 60s.
Issued by National Weather Service Fort Worth TX 255 PM CDT Mon Aug 2 2021 /Tonight through Tuesday/ A cold front will continue to slide southward through the region tonight, clearing the CWA on Tuesday.
Nice afternoon with temperatures in the lower to mid 70s and clearing skies today as high pressure ridges into the north country. The area of high pressure will remain over the Northeastern CONUS through the entire near term portion of the forecast. A cold front will approach from Canada, but not quite make it into our area late in the day Tue into Tue night. Temperatures will trend a couple degrees warmer each night and day, with a return to normal temperatures by later this week.
The overall weather view remains dominated by a ridge of high pressure building toward the region from the south and west, and a broad area of monsoonal moisture over much of Idaho.
Surface observations show temps in the lower 90s with dew points in the mid to upper 70s and light winds less than 10 mph. Looking beyond the Florida Keys, a broad and weak mid to upper level trough is sinking south across the southeastern U. This trough will trek a little further south over the next 24 hours but remain well north of the area.
An upper level trough will move overhead tomorrow, prolonging our modestly cooler temperatures.
1135 AM EDT Mon Aug 2 2021 Fair, pleasant, and seasonably cool (comfortable) conditions early this week will trend warmer with a gradual increase in precipitation potential through late week. Most areas appear to stay dry with temps trending slightly warmer through Wed. The late week period is expected to become more unsettled as the mean upper trough position extends from the central GLAKS to the Tennessee River Valley, leaving the eastern seaboard susceptible to deeper moisture from the southeast states and western Atlantic.