Aikyam-Lab/Synoptic-Bench huggingface dataset:
413 AM EDT Sat Aug 27 2022 Today an upper high begins to slowly drift eastward from the Mid West to over the Ohio River Valley. Tomorrow the aforementioned upper high will remain over the area with a Bermuda high inching in over the area from the Atlantic.
351 AM EDT Sat Aug 27 2022 A large area of high pressure will build east through the Great Lakes region through tonight, centering over New England by Sunday.
While these "cooler" temperatures have been nice, these afternoon RH values have not. /44/ (Sunday Night through Saturday) An elongated upper-level trough from the western Gulf of Mexico through the midwest at the start of the period on Sunday night will linger in place through midweek.
High pressure will build over New England tonight before moving offshore Sunday afternoon.
As temperatures warm back into the lower 90s, the atmosphere will mix out, which will mix down some of the jet energy. Sunday will be cooler behind the wave. Highs will be around 5 to 10 degrees cooler than today. Reimer Upper level ridging builds into the region with drying and temperatures moving into the lower to mid 90s.
319 AM EDT Sat Aug 27 2022 Dry weather and warming temperature will be interrupted by rain with an early week cold front. No appreciable changes were needed for the near term forecast as building high pressure will maintain dry weather despite a weak frontal zone sagging across the region. Dry weather and warmer temperature is expected for Sunday, with warm advection ensuing under high pressure building in advance of Midwrn troughing.
1242 AM EDT Sat Aug 27 2022 Low pressure moving east across the Maritimes overnight will draw a cold front across the Gulf of Maine.
638 AM CDT Sat Aug 27 2022 (Today through Sunday Night) Expect a fairly typical summertime Saturday today as a weak upper level ridge builds over the area. The exception to the high temperatures would be where temperatures get cooled due to the scattered showers and storms. Temperatures tonight will be in the mid to upper 70s for most of the area and into the low 80s along the coast.
433 AM MDT Sat Aug 27 2022 Zonal flow arrives in the upper levels as the trough axis exits our area today.
Increasing dewpoints arriving on southerly flow will result in warmer temperatures across the area.
The MT wave will drag the cold front southward across the state tonight into tomorrow morning. With weak ridging trying to build and the final departure of any remaining monsoonal moisture, showers and thunderstorms will be mostly inhibited, even on higher elevations during Sunday afternoon. After Sunday's passing wave to the north, a drier northwest flow will set in overnight as ridging begins to build across the West.
(Today through Sunday) For the remainder of the weekend southerly flow in the low levels will continue as weak high pressure ridges in from the east bringing in ample Gulf moisture with PWAT values remaining around or above the 90th percentile of SPC daily climo which is 2.
Afternoon highs in around 90 along the coast and in the low 90s inland, and overnight lows in the mid 70s.
/Issued 413 AM EDT Sat Aug 27 2022/ Today an upper high begins to slowly drift eastward from the Mid West to over the Ohio River Valley. Tomorrow the aforementioned upper high will remain over the area with a Bermuda high inching in over the area from the Atlantic.
Cooler temperatures and breezy winds are forecast this weekend as a dry cold front sweeps across the area. The marine layer has deepened to around 3000 feet ahead of a cold front that has entered extreme NW CA. An upper trough will dig over the area today with the associated aforementioned dry front continuing to sweep across the area today. This front will bring slightly "cooler" and drier air into the area. A passing trough and associated front has deepened the marine layer this morning.
Upper-level trough approaching the Pacific Northwest will promote continued onshore flow to northern California today with locally breezy winds around the Delta and into the higher elevations. Minimal day-to-day changes are expected for the second half of the weekend as a weak cut-off low develops off the Sonoma County coast. Cut-off low will be short-lived as the ridge begins to re- establish itself at the start of the workweek over the Four Corners.
221 AM PDT Sat Aug 27 2022 Developing low pressure along the West Coast this weekend, will help build the marine layer, and spread areas of night and morning low clouds and patchy fog well inland.
/EC/ Today and tonight: Scattered to numerous showers and thunderstorms are expected across the area today as a low pressure system fizzles out, leaving lingering moisture in its wake. A slight pattern change will allow for weak mid-level ridging across the ArkLaMiss region, leading to an identifiable diurnal-type pattern with precipitation chances. Overnight lows will remain in the lower 70s and partly cloudy skies are expected.
424 AM CDT Sat Aug 27 2022 Today and tonight: Scattered to numerous showers and thunderstorms are expected across the area today as a low pressure system fizzles out, leaving lingering moisture in its wake. A slight pattern change will allow for weak mid-level ridging across the ArkLaMiss region, leading to an identifiable diurnal-type pattern with precipitation chances. Overnight lows will remain in the lower 70s and partly cloudy skies are expected.
An upper level trough moving in from the Pacific Northwest will scrape by the area late tonight. After Sunday, the ridge builds in the west once more bringing northwesterly flow and drier, warmer conditions back into the region.
629 AM CDT Sat Aug 27 2022 (Today through Sunday afternoon) The upper ridge today will extend from the Atlantic westward across TX and NM to CA as a trough moves across the Central Plains. On Sunday another trough will pass across the Northern Plains but the ridge will remained centered over Nrn Mexico. Temperatures will be warmer today into the mid 90s and then a degree or two warmer on Sunday.
1041 AM EDT Sat Aug 27 2022 High pressure will continue across the area today. The higher res convective models don't have a lot of precip coverage for today and this seems reasonable, but anything that develops will be gusty. /Issued 413 AM EDT Sat Aug 27 2022/ Today an upper high begins to slowly drift eastward from the Mid West to over the Ohio River Valley. Tomorrow the aforementioned upper high will remain over the area with a Bermuda high inching in over the area from the Atlantic.
Highs today will be in the upper 80s to low 90s with the increase in sunshine and upper ridge in place.
742 AM EDT Sat Aug 27 2022 Aviation A dome of high pressure has settled over the Great Lakes and is producing mostly clear skies. Humidity will increase Sunday as the high drifts east and south flow strengthens.
High pressure will build over New England tonight before moving offshore Sunday afternoon. With the humidity, it should feel closer to the low to perhaps mid 90s.
657 AM EDT Sat Aug 27 2022 Dry weather and warming temperature will be interrupted by rain with an early week cold front. No appreciable changes were needed for the near term forecast as building high pressure will maintain dry weather despite a weak frontal zone sagging across the region. Dry weather and warmer temperature is expected for Sunday, with warm advection ensuing under high pressure building in advance of Midwrn troughing.
Otherwise less shower and thunderstorm activity expected today as easterly winds will help to build in weak high pressure. Rain/storm coverage looks to be considerably less today than yesterday which will likely allow temperatures to get a few degrees warmer than yesterday, too. Sunday should be similar, with only isolated to widely scattered rain chances and temperatures running into the low 90s.
Showers will be slow moving due to weak flow, and lightning potential will be limited by warmer air aloft. Similar conditions expected across Central Alabama tomorrow with ridging along the eastern CONUS and scattered, diurnal showers with a few thunderstorms developing during the afternoon. Temperatures are trending a bit warm, so continued to lean towards the warmer guidance with forecast highs in the upper 80s to lower 90s.
Temperatures currently remain in the lower 80s as a result, but will warm back up towards maximums in the lower 90s by this afternoon. While these "cooler" temperatures have been nice, these afternoon RH values have not. /44/ (Sunday Night through Saturday) An elongated upper-level trough from the western Gulf of Mexico through the midwest at the start of the period on Sunday night will linger in place through midweek.
Not much change will occur on Sunday with high pressure over the West Gulf interacting with lower pressure inland and bursts of tropical moisture moving up from the Southwest Gulf. Overnight lows will range from 75 to 80, and high temps on Sunday will range from the lower 90s just west of the beaches to a few degrees above the century mark out west (Starr and Zapata Counties).
The upper level low was just northwest of the Panhandle this morning, moving east. It's associated cold front extended from northeast Washington south to just west of Baker County and then southwest into south-central Oregon.
Temperatures overnight will be slightly warmer in the low to mid 70s with surface winds out of the south remaining slightly elevated (continuing the warm air advection into the area). The main trough axis will remain to our north in the panhandle region. Highs will be a touch warmer than today in the mid to upper 90s with some locations in the Big Country potentially even seeing their first triple digit temperatures in a little bit.
931 AM PDT Sat Aug 27 2022 Developing low pressure along the West Coast this weekend, will help build the marine layer, and spread areas of night and morning low clouds and patchy fog well inland.
Tonight, most of the CWA will be dry with the shower and storm chances mainly in the far NW parts of the CWA closer to the warm front. The higher amounts will be off to the west and NW of our CWA. Locally the NW quarter of the CWA will see the higher rainfall amounts. Sunday, the warm front will lift through the area bringing showers and storms along with it.
/Issued 1041 AM EDT Sat Aug 27 2022/ High pressure will continue across the area today. The higher res convective models don't have a lot of precip coverage for today and this seems reasonable, but anything that develops will be gusty. /Issued 413 AM EDT Sat Aug 27 2022/ Today an upper high begins to slowly drift eastward from the Mid West to over the Ohio River Valley. Tomorrow the aforementioned upper high will remain over the area with a Bermuda high inching in over the area from the Atlantic.
302 PM CDT Sat Aug 27 2022 An upper level trough is passing across western Kansas today.
345 PM EDT Sat Aug 27 2022 A large area of high pressure will build east through the Great Lakes region through tonight, centering over New England by Sunday.
345 PM EDT Sat Aug 27 2022 The latest surface analysis shows that the cold front which had stalled along the southern border of Kentucky has now sagged further south out of the area. Models continue to show good agreement in the near term pattern with a ridge axis over the Ohio Valley and into the upper Great Lakes. The ridge will continue to the east through the period. Lows will drop into the mid to upper 60s on the ridges and into the low 60s in the valleys. The upper level ridge will move to the Mid Atlantic while a large disturbance takes shape over the northern Plains. A stream of upper level disturbances will help a digging trough move through the upper Mississippi Valley and Midwest.
An upper level trof will be moving over the norther high plains with limited impact on Colorado weather. A ridge will build up over the western states early this week, centered generally over the Great Basin, and probably remain in place through the period. This will mean hot and mostly dry conditions again across northeast Colorado, especially for the lower elevations.
(This evening through Sunday Night) Weather conditions will begin a slow, temporary return to normal temperature-wise through the rest of the weekend as broad ridging to our west, and troughing to our northeast leaves somewhat diffluent flow aloft across the Ark-La-Tex. Until then, minimum temperatures are expected tonight in the low to mid-70s with light southerly winds. By tomorrow night, convective activity will dissipate with the loss of daytime heating, leaving clearer skies and allowing slightly cooler temperatures in the low-to-mid 70s near normal for this time of the year.
Surface map at 19z indicated a warm front draped across southern Minnesota southeast into northern Illinois. For tonight, 850mb warm advection will continue this evening as the low level jet increases to 40 to 45 knots. Additional showers and thunderstorms will be on the increase across into the evening, the combination of 850mb warm and the low level jet is expected to increase to around 40 knots across southeast Minnesota and west- central Wisconsin. On Sunday, the warm front will be south of the area.
Another cold front drops south on Sunday, bringing mostly cloudy skies and scattered showers near the Canadian border. Notably cooler highs on Sunday in the 70s to lower 80s will result in higher afternoon humidities, limiting fire weather concerns. -Zanker MORNING DISCUSSION: Today and Sunday: A fast moving upper level ridge will warm things up to start the day with upper 80s to lower 90s expected. However another upper level Low will drop down from British Columbia and track along the Canadian border by this afternoon bringing another cold front with it. During the overnight hours and into Sunday evening as the Low passes the area, the rest of the CWA will see precipitation chances as wrap around moisture moves through.
(This evening through Sunday) The H700-500mb mean trough axis currently extends from the main vorticity maxima, which is just east of North Platte (NE), to Goodland (KS) and to just west of Raton (NM). As seen on the CIRA Advected Layer Precipitable Water imagery over the past few hours, the plume of higher moisture content (ahead of the trough axis) has shifted into western Oklahoma with the deepest PWAT layer (CWA-wide) located over northwest Oklahoma. This trough slowly shifts eastward with PWAT values at roughly 1. Meanwhile, the trough vorticity maxima nears this area and the LLJ strengthens. Precipitation should taper off Sunday morning with shower/storm chances returning Sunday afternoon as the southern extent of the trough lags across the area.
The weak low pressure system that's been plaguing the region over the past several days, finally looks to breathe its last and essentially fizzle out over the region today. While this occurs, ridging aloft will also begin increasing over the region. /19/ Prior discussion below: Today and tonight: Scattered to numerous showers and thunderstorms are expected across the area today as a low pressure system fizzles out, leaving lingering moisture in its wake. A slight pattern change will allow for weak mid-level ridging across the ArkLaMiss region, leading to an identifiable diurnal-type pattern with precipitation chances. Overnight lows will remain in the lower 70s and partly cloudy skies are expected.
A bit less moisture and lack of dynamic forcing will lead to an overall downturn to convective activity today with isolated to scattered storm coverage this afternoon, favoring the high terrain. Hi res guidance isn't that impressed but the HRRR does show some potential for storms to drift eastward off the high terrain. Temperatures will be a bit warmer than yesterday, near to slightly below normal. High pressure ridge will build in across much of the western U. behind this departing trough, allowing for drier air to encompass the region and finally push this monsoonal moisture out of here. The low passing well to the north along the Canadian border Sunday evening will increase the zonal flow across the region advecting a very dry airmass with PWAT values of 0.
1227 PM CDT Sat Aug 27 2022 (The rest of today ) expected with temperatures climbing into the lower to mid 90s.
145 PM PDT Sat Aug 27 2022 Developing low pressure along the West Coast this weekend, will help build the marine layer, and spread areas of night and morning low clouds and patchy fog well inland.
1240 PM CDT Sat Aug 27 2022 (Today through Sunday Night) Expect a fairly typical summertime Saturday today as a weak upper level ridge builds over the area. The exception to the high temperatures would be where temperatures get cooled due to the scattered showers and storms. Temperatures tonight will be in the mid to upper 70s for most of the area and into the low 80s along the coast.
A corridor of warmer, moist air extending from southeast Nebraska through western Iowa was evident in observations with temperatures in the 80s and dewpoints in the upper 60s to low 70s. Southerly flow will continue to draw warm air into the region on Sunday, ahead of an advancing cold front. Better support for rain will likely occur when the low level jet kicks in.
951 AM PDT Sat Aug 27 2022 Cooler weather is expected this weekend along with breezy to locally windy conditions today.
153 PM MDT Sat Aug 27 2022 Short wave trough over Alberta will drop into NE Montana by evening. Sunday will be cooler behind the wave. Highs will be around 5 to 10 degrees cooler than today with readings generally 75 to around 80 degrees.
The near term period finally returns back to more of a typical summertime pattern as a weak upper ridge over the south central US builds northeastward towards the Appalachians. At the surface, the stalled boundary that has been over our region for the past few days finally washes out, allowing for weak high pressure to build in over the northeast Gulf/southeast US. For Sunday, modeled soundings do suggest some slightly drier mid-level air advecting in as the upper ridge builds overhead. Lows tonight will be in the low 70s, with mid to upper 70s along the coast.
There actually may even be slight subsidence aloft for Sunday afternoon in the wake of today's broad short wave trough.
1024 AM CDT Sat Aug 27 2022 (Issued 1011 AM CDT Sat Aug 27 2022) Showers and thunderstorms across western Wisconsin are associated with warm, moist advection on the low level jet. Temps will be near normal under light southerly low level flow, with dewpoints creeping back up into at least the low 60s.
(The rest of today ) expected with temperatures climbing into the lower to mid 90s.
Pressure falls ahead of an attendant sfc trof/front will promote the development of southerly low-level flow as the wave approaches, allowing the unstable sector to lift nwd slightly into nwrn SD, while deep-layer shear will generally increase as stronger flow aloft arrives.
242 PM CDT Sat Aug 27 2022 Latest surface analysis is showing that the warm front was located roughly along Cape Girardeau-Columbia-Des Moines line. The chance will wane during the afternoon before increasing again late on Sunday night with the approach of the next trough. The lows the next two nights will be relatively warm with lows in the low to mid 70s.
However it is a few degrees warmer. Overnight lows tonight will be in the upper 60s for the Plateau to the lower to middle 70s elsewhere.
Scattered showers over the offshore Gulf waters and Florida Bay waned quickly this morning, with rainfall concentrating briefly along the north side of the Lower Keys. Against earlier thinking, the light northeast winds at 700-500 mb on both mesoscale and synoptic numerical guidance apparently traslated into the lower troposphere, with a evidence of cloud line regeneration ongoing. Currently temperatures were in the lower 90s, with a not-well-aspirated stations a bit higher. Broad, weak surface ridging is expected across the southeast U.
The low clouds have lifted across the FA, with a few patches of mid level clouds hanging around. Any stronger activity should hold off until the afternoon, as a cold front moves east of the Red River.
Continuing our trend of the past several days, high temperatures should be a degree or two warmer area wide as thickness values continue to slowly tick upwards.
1228 PM CDT Sat Aug 27 2022 (Today through Sunday afternoon) The upper ridge today will extend from the Atlantic westward across TX and NM to CA as a trough moves across the Central Plains. On Sunday another trough will pass across the Northern Plains but the ridge will remained centered over Nrn Mexico. Temperatures will be warmer today into the mid 90s and then a degree or two warmer on Sunday.
Dry cold front is just now increasing the wind and generating showers that should soon be reaching thunderstorm intensity. Wind drops to much lighter speeds Mon as high pressure returns to dominating Great Basin weather.
A dry cold front continues to work its way across the Pacific Northwest today and will move off to the east tonight. This is bringing cooler air and some higher clouds to the area. Temperatures today will be down about 10 degrees on average with highs in the upper 70s to mid 80s in the lower elevations and mainly in the 70s in the mountains.
640 PM CDT Sat Aug 27 2022 Latest surface analysis is showing that the warm front was located roughly along Cape Girardeau-Columbia-Des Moines line. The chance will wane during the afternoon before increasing again late on Sunday night with the approach of the next trough. The lows the next two nights will be relatively warm with lows in the low to mid 70s.
/33/ (This evening through Sunday Night) Weather conditions will begin a slow, temporary return to normal temperature-wise through the rest of the weekend as broad ridging to our west, and troughing to our northeast leaves somewhat diffluent flow aloft across the Ark-La-Tex. Until then, minimum temperatures are expected tonight in the low to mid-70s with light southerly winds. By tomorrow night, convective activity will dissipate with the loss of daytime heating, leaving clearer skies and allowing slightly cooler temperatures in the low-to-mid 70s near normal for this time of the year.
An upper trough will cross the Northern Plains Sunday and Sunday night. This will push a cold front through most of the area by late Sunday afternoon. Lows will be cooler in the 50s Sunday night with gradual clearing overnight. An upper trough will remain centered over the Desert Southwest and will extend into the Central Plains where northwest flow exists. This upper ridge influence will not be conducive for rainfall.
Cooler temperatures are anticipated across the interior through Sunday with seasonable conditions near the coast. An approaching mid/upper level trough dropping southward from northern California is resulting in clearing sky conditions just offshore of the North Bay coast.
An upper level trough is passing across western Kansas today.
Plenty of sunshine can be seen across the golden state today with slightly cooler temperatures as compared to 24 hours ago. Winds have also trended slightly stronger as a dry cold front shifts across the region to the southeast.
239 PM PDT Sat Aug 27 2022 Cooler weather is expected this weekend along with breezy to locally windy conditions today.
606 PM CDT Sat Aug 27 2022 (This evening through Sunday) The H700-500mb mean trough axis currently extends from the main vorticity maxima, which is just east of North Platte (NE), to Goodland (KS) and to just west of Raton (NM). As seen on the CIRA Advected Layer Precipitable Water imagery over the past few hours, the plume of higher moisture content (ahead of the trough axis) has shifted into western Oklahoma with the deepest PWAT layer (CWA-wide) located over northwest Oklahoma. This trough slowly shifts eastward with PWAT values at roughly 1. Meanwhile, the trough vorticity maxima nears this area and the LLJ strengthens. Precipitation should taper off Sunday morning with shower/storm chances returning Sunday afternoon as the southern extent of the trough lags across the area.
1000 PM EDT Sat Aug 27 2022 A large area of high pressure will build east from the Great Lakes into New England offering dry weather overnight.