Aikyam-Lab/Synoptic-Bench huggingface dataset:
1000 PM MDT Thu Mar 31 2022 18Z Water vapor imagery and RAP analysis indicated short wave trough moving into the region with another strong short wave trough digging into Montana behind it. At the surface, ridge was centered over eastern CWA, with lee trough developing across eastern Colorado. Fairly quiet weather will continue through the overnight hours as aforementioned short wave ridge moves over the area and trough intensifies. Main concern for Friday will be cold front sweeping across the area as next short wave trough moves through.
1212 AM CDT Fri Apr 1 2022 High pressure will continue to build over the area and will be over Arkansas on Friday.
Although this synoptic situation will not produce any significant precipitation over the inland portion of the region, some isolated streamer showers may occur over the lower Texas coastal waters tonight through Saturday.
341 AM MDT Fri Apr 1 2022 A tranquil day is expected today as warmer air moves into the area. Friday will be a relatively tranquil day across the area as weak upper level ridging traverses the area. As this ridge moves overhead, westerly winds will bring downsloping winds to most of the area, resulting in high temperatures near to slightly warmer than they were yesterday.
A ridge will move east of the region today and a weak frontal system will slide across the region tonight and Saturday with light lowland rain and mountain snow.
Cool high pressure will translate across the region with sunshine, light winds and below normal temperatures. Used some cooler temp guidance that seems to account for clouds/showers a bit better.
401 AM PDT Fri Apr 1 2022 An upper level high pressure ridge is moving west to east across the forecast area today. Under mostly clear skies for most locations, we'll start the day off on the cooler than normal side at most valley locations. High temperatures are likely to be 5 to 10 degrees warmer today than they were yesterday, with most valley locations inland from the coast likely to be in the 60s.
Early morning temps currently range from the low to mid 40s across the Valley as high pressure builds to the west and an upper trough axis shifts east toward the Atlantic. Will maintain a dry forecast through the weekend as high pressure largely remains dominant. Early morning lows on Saturday will be in the 30s but should remain above the freezing mark.
1045 AM EDT Fri Apr 1 2022 Update Water vapor shows the upper low is located over wrn Lk Erie at this time. - Snow Diminishes then High Pressure Leads to A Quiet Friday - Troughing will continue to exit to our east into New England as ridging across the northern plains slides into the Great Lakes.
and Saturday The latest RAP analysis and satellite/radar imagery show a sharp upper trough exiting into the central Great Lakes while weak high pressure prevails across the Plains. Flurries continue to move south on the backside of the upper trough and across northeast Wisconsin. As a result, the low stratus should erode this morning as the lake contribution is lost. This should result in temps warming into the low to mid 40s under mostly sunny skies by afternoon. Lowered highs on Saturday due to cloud cover/precip, which should range from the low to mid 40s.
At the surface, high pressure is centered over the Arklatex region with lee troughing starting to strengthen. There is decent agreement between the ECMWF and GFS in a more robust trough starting to dig across the Northern Rockies and will begin to close off over the Central Plains/Mid Mississippi Valley by late Tue night. This will bring increased precip chances Tue night along with cooler and windy conditions for Wed through Thu. Following these showers, a cold front will pass through shifting winds to northwesterly late tonight.
This AM at the surface, there is a reinforcing cold front moving across Central Alabama with light NW winds behind it.
Dry conditions with warmer temperatures through the weekend.
1052 AM EDT Fri Apr 1 2022 A weakened low-level ridge extends west across the Bahamas and the Straits of Florida. The weakly veering profile suggests conditions are favorable for a few showers and possibly thunderstorms to form in the lee of the Lower Keys.
But dynamic cooling and near freezing wet- bulb temperatures should quickly transition rain or a rain/snow mix over to all snow across the north. 5"/hr along and north of the highway 30 corridor and by steep mid-level lapse rates on forecast soundings. A slight north-south shift in the track of the low will have implications on where the rain-snow line sets up and on total snow amounts.
High pressure at the surface will shift eastward today, with temperatures warming back into the 60s in most areas as winds regain a southerly component. Clouds will increase tonight, as a weak cold front approaches the region. The boundary will move through during the overnight hours, along with an upper level trough pushing it eastward. This will be short-lived, however, as high pressure pushes the systems eastward during the day Saturday, rain chances ending, and temperatures warming back up quickly.
At the same time a cold front will reach and cross the region during the afternoon/evening hours. despite the low qpf in the forecast. expect a seasonably nice day to start the weekend with mostly sunny skies and highs in the 60s across the local area as a transitory ridge aloft crosses the region in west northwest flow.
700 AM EDT Fri Apr 1 2022 Much cooler temperatures and scattered rain and snow showers today. The upper trough will swing through the region this afternoon, with the cold core and enough jet support to foster continued sct showers. Thermal profiles suggest precipitation type in the higher terrain as all snow, with varied snow and rain/snow mix in the lower elevations. Subsidence and high pressure will return dry weather to the region tonight as the upper trough exits east. High pressure and brief ridging will cross the region Saturday and moderate temperature closer toward seasonal averages.
High pressure will build into the area through Saturday.
We begin this Friday with cool temperatures and decreasing cloudiness as high pressure builds in from the west.
A weak cold front follows an H5 upper trough that will traverse the northern Plains overnight. Further west, broken clouds and clearing skies prevail, along with warmer temperatures in the upper 40s to low 50s.
557 AM EDT Fri Apr 1 2022 Much cooler temperatures and scattered rain and snow showers today. The upper trough will swing through the region this afternoon, with the cold core and enough jet support to foster continued sct showers. Subsidence and high pressure will return dry weather to the region tonight as the upper trough exits east. High pressure and brief ridging will cross the region Saturday and moderate temperature closer toward seasonal averages.
Afternoon highs will be in the low 80s north of the boundary and mid to upper 80s southward.
601 AM CDT Fri Apr 1 2022 (Today and tonight) A mid/upper trough currently moving across the Rockies will move into and across the Plains later today and tonight. However, the trough is expected to bring some mid-level moisture to the region. The drier low levels will likely lead to inverted V soundings this afternoon/evening that could cause some damaging wind gusts with some of the high based showers/storms, mainly in western portions of the fa. The rain is expected to move out of the fa late tonight/early Saturday as the mid/upper trough begins to exit the region.
With the upper-level low having moved through the Quad State, we are left with the upper trough which is slowly progressing eastward. Clouds are rotating through with the upper trough and have been slow to clear out, with only much of Southeast Missouri and the Purchase area in Western Kentucky seeing decent clearing at this point. With light northerly winds during the morning, forecast highs have shifted a bit lower, mainly the low to mid 50s. Left in between the two as the trough moves through the Midwest, precip chances in the Quad State will be down in the chance range, with rainfall under a tenth of an inch.
High pressure will then briefly build in. Low pressure will move through the region Saturday night with high pressure following in its wake. Lingering clouds in central Ohio will clear during the evening as high pressure builds in. The high will move off to the east on Saturday as a compact low pressure system approaches. Expect good radiational cooling conditions tonight allowing lows to fall below freezing. A quick warm up will occur on Saturday but highs in the lower to mid 50s will still be nearly 5 degrees below normal.
Thanks to southerly winds ahead of the low and its associated cold front, high temperatures will reach the lower to middle 50s across the southern half of the CWA.
Forecast soundings suggest that the low levels are very dry, so doubt much more than a few flurries will manage to make it through the dry low levels. Otherwise, upper level low pressure continues to gradually churn to the east from Saskatchewan through Manitoba during the day today.
945 AM CDT Fri Apr 1 2022 A weak cold front is pushing through eastern portions of the CWA this morning. Forecast soundings suggest that the low levels are very dry, so doubt much more than a few flurries will manage to make it through the dry low levels. Otherwise, upper level low pressure continues to gradually churn to the east from Saskatchewan through Manitoba during the day today.
/Today through Saturday/ A weak cold front is moving south through the forecast area and will mainly serve to keep temperatures relative steady compared to yesterday across most of the region. As the trough moves into the Southern Plains tonight, scattered convection should develop over Oklahoma and into North Texas. However, a few scattered showers may also develop before sunrise across Deep East Texas and into Western Louisiana as the trough provides some additional ascent along a weak surface boundary. The trough will also be outpacing a cold front back to the west. Therefore, vertical ascent should quickly diminish as the trough axis moves through the forecast area. The cold front should begin moving across the area during the morning.
A jet max accompanying the exiting trough which will help sustain the gusty winds throughout the morning hours. Temperatures will be cooler today with highs in the 50s over the plains and 30s/40s in the mountains/foothills. A ridge aloft moves eastward into Colorado Friday evening into early Saturday which will help clear cloud cover and keep conditions dry overnight. Nearly zonal flow aloft will be over the area on Sat as a sfc lee trough develops along the front range. By Sun night into Mon, a weak upper level trough will affect the area. Highs on Mon will be in the lower to mid 60s across nern CO. Looking ahead to Mon night into Tue, a stg upper level trough will move into the nrn Rockies and then intensify over the nrn Plains on Tue.
A few areas of cloudiness associated with a mid-level trough axis will dissipate as the axis pushes eastward this afternoon. Will maintain a dry forecast through the weekend as high pressure largely remains dominant. Early morning lows on Saturday will be in the 30s but should remain above the freezing mark.
Weak high pressure builds into the area today. Saturday the high pressure moves east allowing breezy southwest flow ahead of a trough moving over Montana. There will be breezy to moderate winds by mid to late afternoon especially for ridge tops, the Eastern Magic valley, and the Snake plain.
540 AM MDT Fri Apr 1 2022 A tranquil day is expected today as warmer air moves into the area. Friday will be a relatively tranquil day across the area as weak upper level ridging traverses the area. As this ridge moves overhead, westerly winds will bring downsloping winds to most of the area, resulting in high temperatures near to slightly warmer than they were yesterday.
445 AM PDT Fri Apr 1 2022 An upper level high pressure ridge is moving west to east across the forecast area today. Under mostly clear skies for most locations, we'll start the day off on the cooler than normal side at most valley locations. High temperatures are likely to be 5 to 10 degrees warmer today than they were yesterday, with most valley locations inland from the coast likely to be in the 60s.
639 AM CDT Fri Apr 1 2022 Broad area of high pressure over the region will bring clear skies and unlimited vsby thru the day. /issued 426 AM CDT Fri Apr 1 2022/ Another great day with clear skies as high pressure covers most of the south central US. Clouds fm a stalled frontal system ovr the coastal waters will lift to the north late today as clouds from an area of low pressure to the nw drags clouds down into this region.
Weak high pressure and dry weather will follow to finish up the weekend.
(Today and tonight) A mid/upper trough currently moving across the Rockies will move into and across the Plains later today and tonight. However, the trough is expected to bring some mid-level moisture to the region. The drier low levels will likely lead to inverted V soundings this afternoon/evening that could cause some damaging wind gusts with some of the high based showers/storms, mainly in western portions of the fa. The rain is expected to move out of the fa late tonight/early Saturday as the mid/upper trough begins to exit the region.
Late afternoon, winds will begin shifting to the northwest at CNM/HOB as a cold front starts to move into the area, with speeds gradually diminishing. (Today through Saturday afternoon) An upper trough is over the Great Lakes region with another over the Rocky Mountains. The upper trough over the Rocky Mountains will move over the central part of the country by this evening. A cold front will move into West Texas and Southeast New Mexico Friday night as the upper trough moves over the region. This will result in low temperatures Friday night ranging from the lower 30s in northern Lea County to near 60 degrees along the Big Bend. Temperatures on Saturday will be a little cooler as a result of the front with highs mostly in the 70s and 80s.
High pressure covered the Northland early this morning. Upper level and surface ridging will drift over the area through the day. This aforementioned system will slowly move east, lifting the warm front through the rest of the area. A cold front will follow behind and reach northwest Wisconsin late tonight. The cold front moves slowly east Saturday and have kept some pops along and ahead of the front. Some additional pops have been placed over the Arrowhead in the afternoon as one more trof clips this area, accompanied by a positively tilted upper trof.
249 AM PDT Fri Apr 1 2022 A deep marine layer will continue through the weekend with night and morning coastal low clouds extending onto the lower coastal mountain slopes at times.
All in all, should be a nice day on tap with plenty of sun and warmer temperatures climbing through the 40s. It looks like temps will drop to around freezing early Saturday morning to support a transition to mainly snow by the time the heaviest precip arrives.
A short-lived ridge of high pressure will make for fair weather today. Ridgetops will see gusts of 30 to 40 mph. The lower elevations will also see gusty winds of 20 to 30 mph. Furthermore, temperatures will be cold enough to support snow in the higher terrain. While road temperatures will start out warm, impacts for the lower elevations will be minimal.
731 AM EDT Fri Apr 1 2022 Aviation - Snow Diminishes then High Pressure Leads to A Quiet Friday - Troughing will continue to exit to our east into New England as ridging across the northern plains slides into the Great Lakes.
Saturday will see highs in the 60s, followed by another colder night Saturday night with lows from the low 30s to 40 (coldest over the E CWA) and additional frost potential.
620 AM CDT Fri Apr 1 2022 (Today and Tonight) After a chilly start this morning with many locations near or below freezing, a good warmup is expected this afternoon.
619 AM CDT Fri Apr 1 2022 Taking a look at the weather map this morning we have a 500mb low over eastern Saskatchewan with a trough south across eastern MT/WY and UT/CO. The first is the low over eastern CO, which is helping to bring light snow to western South Dakota that will expand across northeastern South Dakota and west central Minnesota during the morning hours. This and the 500mb trough will help allow scattered showers to develop in the afternoon. Dry high pressure will slide across the Dakotas and into Minnesota on Saturday, as temperatures rise into the upper 40s to upper 50s.
546 AM MDT Fri Apr 1 2022 The eastward propagating trough continued to push across the forecast area early this morning. Lift ahead of the trough kept snow going over the central and southern mountains with rain showers in the lower elevations below 7500 feet. Models indicated the trough axis will move east of the Continental Divide by sunrise. A low amplitude transitory ridge builds over the West tonight and will remain over the forecast area Saturday.
BW Chattanooga Airport, TN 62 39 67 44 67 / 0 0 10 0 0 Knoxville McGhee Tyson Airport, TN 58 35 64 43 64 / 10 0 10 10 10 Oak Ridge, TN 58 36 63 42 65 / 10 0 10 10 10 Tri Cities Airport, TN 53 31 63 40 61 / 20 0 10 10 10 TN.
346 AM MDT Fri Apr 1 2022 The eastward propagating trough continued to push across the forecast area early this morning. Lift ahead of the trough kept snow going over the central and southern mountains with rain showers in the lower elevations below 7500 feet. Models indicated the trough axis will move east of the Continental Divide by sunrise. A low amplitude transitory ridge builds over the West tonight and will remain over the forecast area Saturday.
426 AM CDT Fri Apr 1 2022 Another great day with clear skies as high pressure covers most of the south central US. Clouds fm a stalled frontal system ovr the coastal waters will lift to the north late today as clouds from an area of low pressure to the nw drags clouds down into this region.
434 PM EDT Fri Apr 1 2022 The axis of a deep upper level trough and cold pool of air aloft will drift northeast across the St. Lawrence River Valley tonight followed by an area of high pressure and tranquil weather on Saturday.
Mid level trough currently located over S CO/N NM will traverse the region tonight with 300 mb speed max shifting into SE OK/SW AR.
226 PM EDT Fri Apr 1 2022 Weak high pressure will build across the region tonight allowing winds to diminish. Winds are gusting in the 20-30mph range and the higher elevations are seeing gusts topping 40mph at times. Winds will continue through the late afternoon and into early evening, eventually relaxing overnight as the pressure gradient diminishes and high pressure begins to move overhead. May have a few spots in sheltered high elevation valley locations decouple by early Saturday morning allowing for temperatures to reach the lower 20s.
248 PM MDT Fri Apr 1 2022 An upper level trough over the Colorado/Kansas border will move east of our area tonight with a ridge developing over Colorado on Saturday. This ridge will produce subsident flow which will lead to dry conditions. Gusts across the higher terrain will be between 30-40 mph tomorrow while southerly winds across the plains will gust up to 20 mph.
Low winds coupled with clear skies and cooler temps will allow some frosty conditions to develop across much of the area overnight.
An upper-level trough in conjunction with the surface front will bring mostly cloudy skies and support a chance for shower and isolated thunderstorms across much of northeast Texas, southeast Oklahoma, extreme northwest Louisiana, and southwest Arkansas overnight.
930 AM PDT Fri Apr 1 2022 A deep marine layer will continue through the weekend with night and morning coastal low clouds extending onto the lower coastal mountain slopes at times.
/issued 639 AM CDT Fri Apr 1 2022/ Broad area of high pressure over the region will bring clear skies and unlimited vsby thru the day. /issued 426 AM CDT Fri Apr 1 2022/ Another great day with clear skies as high pressure covers most of the south central US. Clouds fm a stalled frontal system ovr the coastal waters will lift to the north late today as clouds from an area of low pressure to the nw drags clouds down into this region.
243 PM EDT Fri Apr 1 2022 * Clearing skies this evening * Frosty temperatures tonight * Rain returns Saturday afternoon and evening An upper level low is exiting Indiana this afternoon, with weak high pressure moving in from the SW. This porcess of dry air entrainment will continue through this evening, with building high pressure further enforcing clearing. High pressure building will also create near calm conditions over the region. This will interact with a jet oriented WNW, pushing the low towards central Indiana by late tomorrow morning. The high temperature forecast will be challenging tomorrow as onset of precipitation and low arrival will have a significant influece on afternoon highs. CAA will return Saturday night with clearing skies and lows back below freezing.
Based on CAMs and radar trends, ongoing shower activity will linger across central and eastern portions of southwest Kansas through early evening then dissipate west to east as a cold front moving into the region pushes farther southeast into northern Oklahoma and eastern Kansas. Under plenty of sunshine, expect afternoon highs ranging from the 60s(F) in central Kansas to the lower 70s(F) in extreme southwest Kansas.
A weak cold front is pushing through eastern portions of the CWA this morning. Forecast soundings suggest that the low levels are very dry, so doubt much more than a few flurries will manage to make it through the dry low levels. Otherwise, upper level low pressure continues to gradually churn to the east from Saskatchewan through Manitoba during the day today.
Slightly warmer tomorrow, but with increasing afternoon clouds. Discussion: Clouds will continue to clear through the overnight hours as an upper trough lifts further northeast. Temperatures will fall into the lower and mid 30s, which is 8 to 10 degrees below normal. Tomorrow, rising heights and southwest flow will allow temps to be warmer.
Taking a look at the weather map this morning we have a 500mb low over eastern Saskatchewan with a trough south across eastern MT/WY and UT/CO. The first is the low over eastern CO, which is helping to bring light snow to western South Dakota that will expand across northeastern South Dakota and west central Minnesota during the morning hours. This and the 500mb trough will help allow scattered showers to develop in the afternoon. Dry high pressure will slide across the Dakotas and into Minnesota on Saturday, as temperatures rise into the upper 40s to upper 50s.
Upper level ridge over the forecast area today will bring dry and slightly warmer temperatures. Temperatures will reach near 60 today in the lower valleys with tonight's lows reaching near freezing. Main focus will be with weak trough passage for Saturday. This trough will bring a chance of snow to Baker County and the West Central Mountains though accumulations are expected to be minimal. A trough moving through the area will create high elevation snowfall, with mountain obscurations.
Where there are clouds, temperatures will only dip down into the low to mid 40s then remain steady for the rest of the night. Ahead of the associated cold front, low level moisture will be on the increase with convergence along the front, as well as some mid/upper lift which should be enough for isolated/scattered showers to develop after 06z Saturday and slide east during the day on Saturday before diminishing by late afternoon. Only weak CAA behind the front, so as the clouds clear out from west to east, temperatures will still be a bit warmer than today, in the low 50s to low 60s.