Aikyam-Lab/Synoptic-Bench huggingface dataset:
Warmer than normal temperatures are expected through Saturday thanks to upper level high pressure. Cooler temperatures will return as a series of weather disturbances bring a chance of showers to the area during the first half of the new week. Skies are clear under a well amplified 500mb ridge that is tracking west to east across the Rockies. The overall pattern transitions to one dominated by troughing over the western CONUS.
1014 PM EDT Fri Mar 19 2021 Mostly clear, breezy and dry conditions prevail along the Florida Keys on this Friday evening, in the wake of a cold front that moved through the area during the day. Temperatures are dropping through the lower 70s, and winds on land are from the NNW at 15 to 20 mph. Surface analysis depicts the aforementioned cold front across the Florida Straits, with a large high pressure area centered over the Great Lakes and dominating the eastern CONUS. Overnight, expect dry and cooler weather to prevail as the post- frontal airmass continues to pour southward into the Keys, with temperatures dropping into the mid-upper 60s and dewpoints dropping into the upper 50s by morning.
/issued 200 PM CDT Fri Mar 19 2021/ An upper level ridge will continue to build over the area tonight with the ridge axis passing overhead early Saturday morning. Upper level winds will back to the west on Saturday with an upper level trough moving into the Intermountain West. The approach of the upper trough will allow for surface pressure troughing/cyclogenesis in lee of the Rockies on Saturday afternoon. The surface pressure gradient will tighten in response to this and will result in breezy southerly winds and warmer temperatures.
Farther north over the plains, breezy southwest winds in the wake of the front will shift more westerly on Saturday as a low pressure trough moves over the area, and these downsloping winds will help keep the plains dry. The passage of this trough will help decrease precipitation across the area Saturday night.
849 PM EDT Fri Mar 19 2021 High pressure centered over southern lower MI and nearby waters. We should more fully realize potential for radiational cooling tonight, even with the high drifting eastward overnight. Pattern synopsis and forecast: Sprawling area of high pressure making slow progress south across the area this afternoon, as evident by sun-filled skies and relatively light winds. Of course, eastern upper and coastal areas will remain a bit cooler.
The cold front has passed to the east, and lingering showers will continue over the Magic Valley this evening along with scattered showers across the area overnight through Saturday. The trough axis of this system will cross over the region tomorrow, stirring up gusty winds and scattered light showers through Saturday evening. Scattered showers, mainly over the higher terrain, tonight through Saturday evening, with local mountain obscuration and MVFR/IFR conditions.
/issued 245 PM CDT Fri Mar 19 2021/ WV imagery shows the upper ridge has developed a bit farther east over the past 24 hours, resulting in cloudless skies over West Texas and Southeast New Mexico, and a slightly warmer afternoon than yesterday's.
928 PM EDT Fri Mar 19 2021 Surface Analysis this evening shows strong high pressure in place across the Great Lakes with cool northeast surface flow spilling across Indiana. Strong ridging was in place aloft over the upper midwest and Indiana. The broad and vertically-stacked ridge of high pressure that has quickly built into Indiana today will continue to provide dry and clear conditions through Saturday night. before winds quickly diminish early this evening as the center of the ridge settles closer to the region.
Light northerly winds will continue with clear to mostly clear skies and high pressure in control. /issued 227 PM CDT Fri Mar 19 2021/ SHORT TERM (Now through Saturday Night): High pressure is in control at the surface and H5 ridging will move overhead west to east in the short term. A return to near normal temperatures will have to wait until southeast winds become reestablished just after the short term period when high pressure reorients farther east.
First, the frost/freeze program does not begin until April 15th for the northeast mountains where freezing temperatures are most likely. With low pressure meandering off the Atlantic coastline, easterly flow may advect some moisture and light rain showers into southeastern portions of the CWA Saturday evening into Saturday night.
533 PM EDT Fri Mar 19 2021 High pressure will continue to build south out of the eastern Great Lakes region tonight bringing with it diminishing winds and dry conditions.
Ensembles have continued to trend wetter and slightly cooler, allowing for snow to accumulate in the foothills. Light snow could accumulate in the hills within the lower elevation so be prepared for changing road conditions. Carrothers After a very warm and dry Friday, a pattern change will bring wet conditions and cooler temperatures to the area Saturday, including some heavy wet snow to the high country.
The broad and vertically-stacked ridge of high pressure that has quickly built into Indiana today will continue to provide dry and clear conditions through Saturday night. before winds quickly diminish early this evening as the center of the ridge settles closer to the region.
Expect to remain cool and dry throughout the morning, with afternoon high temperatures in the high 50s to low 60s tomorrow. The region sits under broad troughing/northwest flow aloft and a tightened surface pressure gradient is in place helping keep northerly winds breezy. Models indicate some pocket of higher moisture(still not great) associated with this and given the presence of the upper trough nearby, won't rule out that there could be some drizzle/sprinkles/light rain.
an upper level ridge is forecast to shift east across Colorado tonight. an upper level trough is deepen across the western states during the day, with increasing southwesterly flow spreading across Colorado.
However, winds will strengthen again Saturday area wide as a lee side trough strengthens and winds aloft increase.
A cold front moving from west to east will bring some scattered shower activity to the region.
738 PM EDT Fri Mar 19 2021 The center of lake aggregate high pressure is over central Lake Michigan and central Lake Huron this evening. * None A strong low to mid level anticyclone now centered over Wisconsin will move over srn Lower MI tonight before advancing to the Mid Atlantic and New England by the end of the weekend. The airmass circulating around the high will remain extremely dry. Broad upper level ridging across the Great Lakes will keep even high clouds at bay.
An upper level trough will continue to bring scattered rain showers and mountain snow showers through tonight, especially north of Mendocino County. Scattered showers spread onshore late this morning and pushed inland early this afternoon, supported by a modest increase in instability as a cold upper trough approaches. A weakening upper-level low centered off the Washington coast will push eastward through the evening, swinging the main trough axis across our region tonight.
Lows tonight will bottom out in the low to mid 30s.
813 PM CDT Fri Mar 19 2021 The pesky trough that brought today's early morning drizzle and persistent cloud cover is gradually pulling off to the east. The mid-level anticyclone is building into the southern Great Lakes but the cut-off upper low will drift slowly across the Southeast. Temperatures were much cooler today with highs only near 50 degrees.
720 PM EDT Fri Mar 19 2021 High pressure remains in control of the weather conditions through the weekend. Gusty winds still expected for much of the day as high pressure tries to building in from the north.
A secondary cold front was located south of the forecast area, bringing a reinforcing shot of below normal temperatures and drier air to the Valley. High pressure will continue to move southeast over the Great Lakes region, but a wedge front could lead to isolated showers later this evening. A cool but very nice weekend will shape up over the Tennessee Valley, as high pressure and subsidence builds over much of the eastern US.
This afternoon an mid level ridge was present over the Rockies and into Montana while a mid level trough was over the eastern Pacific and approaching the northwest coast of Washington. On Saturday the mid level ridge will move over eastern Kansas while a deepening lee side trough develops a tight pressure gradient across western and into central Kansas. Expect highs in the low to mid 60s with afternoon RH dropping down to around 30 percent.
Highs in the 60s are expected Saturday afternoon, but a few locales across the Big Country may warm into the low 70s.
605 PM CDT Fri Mar 19 2021 Broad high pressure will maintain VFR conditions with generally light NE winds through Saturday. A weak upper level ridge over the southern Rockies into northern Mexico will move east into south Texas by Saturday night.
A cold front could then bring showers from west to east later in the day Saturday through Saturday night. Current surface analysis places high over the Great Lakes, with trough to the lee of the Rockies. Upper level analysis places ridge to the lee of the Rockies nudging into the plains, with trough/low pushing over the west coast. Tonight, aforementioned trough pushes east, with ridge departing to our east. On Saturday, aforementioned cool front gradually works its way through the area through the day into the evening, while upper trough continues its approach. This will bring cooler temperatures to the northwest behind the front, warmer ahead.
639 PM CDT Fri Mar 19 2021 222 PM CDT High pressure has established its presence across the entire Great Lakes region and into the northeast. Inland readings approach 50, though temperatures are some 10 degrees cooler lakeside.
The upper ridge over the CWA will slide east overnight. Southwesterly flow aloft is over the CWA on Saturday ahead of the next upper trough. The low level winds should adhere to the normal diurnal patterns tonight and Saturday. On Saturday, there is little moisture for the CWA in the lower and mid levels, just some up high. Temperatures look to be 3-7 C warmer than this afternoon's highs. Concerning fog, will leave the "patchy fog" in over parts of the South Platte valley overnight tonight as the low levels are still quite moist due to snow and snow melt.
911 PM CDT Fri Mar 19 2021 Plenty of sunshine is in store this weekend as high pressure slowly moves across the region.
255 AM EDT Sat Mar 20 2021 Strong subsidence with high pressure both aloft and at the surface will result in a dry weekend with plenty of sunshine. Early in the forecast period, the ridge axis will be just west of the Mississippi River, gradually shifting directly over Indiana by Sunday. Overnight lows will dip close to the freezing mark tonight.
943 PM PDT Fri Mar 19 2021 Temperatures will be seasonably cooler through the weekend with the chance of showers, mainly over the Cascades, extreme eastern Washington and north Idaho.
Much of the same is expected Sunday but with slightly cooler temperatures and perhaps a stray rain shower over northwestern New Mexico.
Very quiet weather in the short term as high pressure drifts across the region. Ridging tracks off to the east tonight, allowing return flow to resume and moisture to begin to build back into the Coastal Bend.
1225 AM CDT Sat Mar 20 2021 Winds are calming as expected areawide as the ridge axis moves over the Mid-Mississippi Valley. Temperatures will cool as expected to around or slightly below freezing with this efficient radiational cooling setup, and some patchy fog in valleys and low-lying areas cannot be ruled out. Dry weather is expected to continue Saturday and Saturday night as the latest run the HREF continues to show the upper ridge currently over High Plains will build into the area.
144 AM EDT Sat Mar 20 2021 [Through 06Z Sunday] Winds will shift at all terminals from northwest to northeast at all terminals before daybreak as a backdoor cold front pushes through. An upper level trough will remain over the region Saturday night through Sunday. Low temperatures Sunday morning will be in the mid to upper 40s and high temps will be in the low to mid 60s in the afternoon. The coolest temps will reside to our northern counties and warmer temperatures will be closer to the coast.
316 AM CDT Sat Mar 20 2021 High pressure looks to continue its gradual drift eastward today, with a tightening pressure gradient on the back side leading to an uptick in southerly winds, with some gusts of 20 to 30 mph possible, highest west of the Mississippi River. Sunday will see southerly winds increase a bit more as the pressure gradient tightens ahead of an approaching trough/surface front.
319 AM CDT Sat Mar 20 2021 Crisp clear skies overnight across southeast Texas with temperatures falling into the low to mid 40s. low pressure troughs were covering east and west coasts and in the mid section of the country a ridge of high pressure could be found. that will signal the beginnings of the western US coast trough moving eastward with southwest flow developing aloft over the area.
/issued 200 PM CDT Fri Mar 19 2021/ An upper level ridge will continue to build over the area tonight with the ridge axis passing overhead early Saturday morning. Upper level winds will back to the west on Saturday with an upper level trough moving into the Intermountain West. The approach of the upper trough will allow for surface pressure troughing/cyclogenesis in lee of the Rockies on Saturday afternoon. The surface pressure gradient will tighten in response to this and will result in breezy southerly winds and warmer temperatures. These generally southerly winds help bring warmer weather to the area for Sunday and increase moisture ahead of the next system.
Cooler and windier weather will return over the weekend.
323 AM CDT Sat Mar 20 2021 A high pressure ridge will cross over the Panhandles today and bring sunny skies and temps in the 60s and 70s. Sunday will see the ridging aloft move to the east as a trough digs in the western CONUS. At the surface, the low pressure center moves further south. Combine this with the cold front that is extending south of the low in eastern Canada, and this will provide an opportunity for the Panhandles to see showers and isolated thunderstorms.
Cool and dry remains in place through Sunday as upper level ridging builds to our west over the central US and slowly drifts eastward with time.
1056 PM CDT Fri Mar 19 2021 High pressure has settled over the region today resulting in sunny skies, light winds, and mild temperatures.
Early this morning, high pressure will cover most of the eastern half of the country. An upper-level ridge builds into the Midwest as we move through the weekend. As the high drifts eastward during the weekend, winds will shift from easterly today to southeasterly Sunday.
1138 PM CDT Fri Mar 19 2021 222 PM CDT High pressure has established its presence across the entire Great Lakes region and into the northeast. Inland readings approach 50, though temperatures are some 10 degrees cooler lakeside.
The cirrus and brisk winds winds may keep low temperatures a bit warmer, but do not expect cumulus to significantly cut into high temperatures.
CAVU through the period under high pressure. /Issued 605 PM CDT Fri Mar 19 2021/ Broad high pressure will maintain VFR conditions with generally light NE winds through Saturday. A weak upper level ridge over the southern Rockies into northern Mexico will move east into south Texas by Saturday night.
A steady breeze and mild air aloft will keep temperatures from falling below freezing in many areas tonight. The southerly winds will bring even milder air into the region, with highs in the low 60s away from the bay and lake.
Updated 955 PM EDT Fri Mar 19 2021 Temps falling slowly this evening with NE breezes still up around 10 mph, but still expect winds to continue to diminish and temps to drop to around freezing, if not a bit below. Winds stay up around 5 kts early Saturday, but sheltered valley locations may dip into the low to mid 20s. Ridging continues to build into the region on Saturday, and the weather looks beautiful.
357 AM EDT Sat Mar 20 2021 High pressure centered over the central Great Lakes will move east reaching the New England coast by Sunday morning.
A cold front moving from west to east will bring some scattered shower activity to the region. A cold front could then bring showers from west to east later in the day Saturday through Saturday night. Current surface analysis places high over the Great Lakes, with trough to the lee of the Rockies. Upper level analysis places ridge to the lee of the Rockies nudging into the plains, with trough/low pushing over the west coast. Tonight, aforementioned trough pushes east, with ridge departing to our east. On Saturday, aforementioned cool front gradually works its way through the area through the day into the evening, while upper trough continues its approach. This will bring cooler temperatures to the northwest behind the front, warmer ahead.
1153 PM EDT Fri Mar 19 2021 The center of lake aggregate high pressure is over central Lake Michigan and central Lake Huron this evening. * None A strong low to mid level anticyclone now centered over Wisconsin will move over srn Lower MI tonight before advancing to the Mid Atlantic and New England by the end of the weekend. The airmass circulating around the high will remain extremely dry. Broad upper level ridging across the Great Lakes will keep even high clouds at bay. A southeast component to the sfc winds will keep temps a bit cooler near the lakes. A short wave forecast to lift northeast out of the swrn US within the base of the longer wavelength trough over wrn NOAM will be the next system to pose a chance for rain across the forecast area.
Today Through Sunday Night Lighter winds and a mostly clear sky have allowed some areas to see temps drop into the low to mid 30s early this morning. more ridging aloft will be seen. This will result in warmer condtions as there will be a more SRLY component to the SFC flow.
259 AM CDT Sat Mar 20 2021 Overall pattern begins to transition today as the upper ridge shifts to the east and troughing digs into the rockies, setting the region up for unsettled weather. With the frontal boundary entering the forecast area Sunday morning, expect to see a bit cooler highs Sunday, though still in the 50s, as well as some hit and miss precipitation in the region.
Today through Sunday: Current mid-level water vapor imagery shows ridging in the central CONUS ahead of a mid-level trough making landfall on coast of WA/OR region. At the surface, a center of high pressure was analyzed over Lake Michigan and is aiding in the return of southerly winds to the area. Going through the weekend, the west coast troughing and increasing surface pressure gradient are expected to influence strong southerly winds over the area. By Sunday strong moisture advection is also expected to occur ahead of the advancing trough, but the better forcing will lag behind and our rain chances will have to wait until Sunday evening.
355 AM CDT Sat Mar 20 2021 The main forecast challenges over the next several days include a big temperature swing with a cold front this weekend and a mid- latitude cyclone affecting the Great Plains early week. This setup will lead to even warmer and windier conditions than yesterday.
Subsident clearing of stratocu is occurring across the northern majority so should have a mostly clear start to the weekend on tap with some enhanced gradient ENE winds early today and mainly mid level clouds in the southeast as some moisture lingers east of a weak upper trough axis. Sunday gets a slight eastward push of the trough and should stay dry with mostly clear skies in the north to some continued clouds in the southeast. Most elsewhere in the CWA looks to be in the low 40s.
Tonight, lows will drop into the lower 30s. Highs Sunday are accordingly expected to be warmer than the previous few and in the 60s areawide, including along the lakeshore as winds become offshore. Low-level moisture will gradually increase as the day progresses, but not by much since the Gulf of Mexico is "closed for business" in the wake of a strong cold front last week (dew points offshore remain in the upper 40s!). As such, minimum relative humidity percentages should drop into the lower 30s if not a smidge lower Sunday afternoon.
438 AM EDT Sat Mar 20 2021 The cold front that went through the area earlier yesterday, has settled across the Bahamas. Upstream a transient and sharp ridge is moving into the Central Plains.
Sunny skies and slightly above normal temperatures are expected today as high pressure prevails at the surface and aloft. With even warmer temperatures forecast for Sunday, the gusty south winds and afternoon relative humidity values around 35 percent will combine to increase the fire weather danger on Sunday afternoon.
A ridge of high pressure that extends from the southern Great Lakes to Texas will shift east with southeast, then south winds this weekend.
A wedge of high pressure will build down into our area through tonight with an inverted trough developing off the northeast Florida coast. The passage of the front along with limited sunshine should hold max temps only in the lower to mid 60s for most locations.
1221 AM CDT Sat Mar 20 2021 Weak low-level trough across the southeastern CONUS will maintain low VFR ceilings across MLU/ELD/TXK/SHV terminal sites through 21/00Z before conditions gradually improve thereafter.
There is a bit of uncertainty on how far west the lowest humidities will drop due to slightly more moist (but still quite dry) air advecting in as a weak short wave passes overhead Saturday morning. A pattern change will occur on Sunday as an upper level trough and a cold front pass through the region.
Highs topped out roughly 10 degrees cooler than yesterday and the drier airmass kept it feeling lovely out. Expect tonight to fall into the low 50s for most of us, with the exception of some upper 40s across the Nature Coast.
1142 PM CDT Fri Mar 19 2021 Plenty of sunshine is in store this weekend as high pressure slowly moves across the region.
Highs today will range from the lower 50s in eastern upper (south winds coming off cold Great Lakes), to well into the 50s and perhaps some lower 60s in nrn lower. Lows tonight will likely not fall out of the low to mid 30s.
This should allow temperatures to rise into the low 60s this afternoon, despite the cooler air mass over the region from broad high pressure centered over the Great Lakes.
Cool temperatures again today as a backdoor cold front works through. Concern a couple of days was that we could see a widespread freeze if things cleared out enough behind the backdoor cold front. If enough cloud cover works in the southeast may stop in the low 40s.
Late this morning, winds will start to increase out of the southeast as the high shifts eastward and return flow starts to bring back some warmer air. With 850mb temperatures a few degrees warmer than the past two days, this should support highs right around 70 this afternoon. By tonight, southeast winds should increase to 10-15 kts, allowing for low temperatures to stay in the low to mid 40s overnight.
1222 AM CDT Sat Mar 20 2021 High pressure will remain in control on Saturday bringing clear skies and light winds. High pressure will continue to build over Arkansas tonight with clear skies. Cooler and drier air is in place across the state today. Most of the lower clouds will clear tonight, and the state will see the coldest temperatures in the past few weeks, with temperatures dropping below freezing across a number of locations in the northern and western counties. Quite a bit of sunshine is expected, as a northwesterly flow aloft gives way to a bit of ridging late Saturday. High temperatures tomorrow will be generally in the lower to mid 60's statewide, with readings more into the 60's to lower 70's by Sunday.