Aikyam-Lab/Synoptic-Bench huggingface dataset:
945 AM CDT Sat Oct 16 2021 Tranquil weather (and much cooler) conditions are prevailing across the region this morning in wake of the strong cold front that moved through the area last night. Current temperatures are in the 50s with a stout northwesterly breeze, so in spite of the clear and sunny sky that has developed, highs will struggle to climb much above the mid 60s across our area today! This is a stark difference (and about 20-25 degrees cooler) than what we've seen for the past several days. High pressure will continue to slide eastward tonight, as upper ridging builds into the Plains. Thus, expect rather chilly overnight lows as our temps fall into the lower to mid 40s. The short term period will be dominated by high pressure at the surface and a ridge building in from the west.
and Sunday An upper trough will produce clouds and maybe a few sprinkles in Central and North central Wisconsin this morning. High pressure will build into the area and make for sunny skies and seasonable temperatures in the afternoon.
An area of high pressure will continue to be the main influence in our weather in southern Oregon and northern California. This front has trended a little wetter as opposed to previous days, largely attributed to the depth of this trough also increasing.
A robust cold front will bring rain and cooling Sunday, followed by showers Sunday evening.
615 AM CDT Sat Oct 16 2021 VFR conditions to prevail across area terminals through the forecast period ending 17/12Z due to surface and upper-level ridge of high pressure building across the region. /Today through Sunday/ Northwest flow aloft in response to an upper-level ridge across Mexico into the western Gulf of Mexico to provide sufficient subsidence to support mostly clear skies across the region today and tonight. At the surface, a replacement airmass behind an departing frontal boundary to provide much cooler temperatures with highs today forecast to climb to the lower 70s. Upper-ridge to weaken with flow becoming more zonal on Sunday allowing for increasing mid to high level clouds areawide.
613 AM CDT Sat Oct 16 2021 Skies will remain clear today across Arkansas behind a cold front that brought much drier and cooler air across the state. Today Through Sunday Night Early morning water vapor satellite imagery showed a well defined upper trough over the Ohio River valley with broad upper level ridging over the western Continental United States (CONUS). Subjective surface analysis at 4 am showed that cold frontal boundary had pushed into the Gulf of Mexico south of Arkansas, but remained over land in southeast Alabama. The drier and cooler air allowed temperatures to fall into the mid 40s to low 50s so far this morning, and we can expect temperatures to fall another couple of degrees before we hit early morning lows right after sunrise.
Today Through Sunday Night Early morning water vapor satellite imagery showed a well defined upper trough over the Ohio River valley with broad upper level ridging over the western Continental United States (CONUS). Subjective surface analysis at 4 am showed that cold frontal boundary had pushed into the Gulf of Mexico south of Arkansas, but remained over land in southeast Alabama. The drier and cooler air allowed temperatures to fall into the mid 40s to low 50s so far this morning, and we can expect temperatures to fall another couple of degrees before we hit early morning lows right after sunrise.
Early this morning an amplified upper level trough was located across the western Great Lakes, south-southwest across the lower MS River Valley. Light westerly winds were observed across the CWA, and may prevent temperatures from dropping down into the lower to mid 30s. Areas where the PBL decouples, causing winds to become calm, such as river valleys may see the lowest minimum temperatures near sunrise, which may be fall down to 33 to 35 degrees. Cross-over temperatures this afternoon across the CWA were in the lower to mid 20s, so I'm not expecting a heavy frost due to the drier low-levels of the atmosphere. The upper level trough will shift east across the eastern US. Lows tonight will be warmer with upper 30s to mid 40s expected.
upper level ridging is forecast to move across Colorado during the next 24 hours. This will allow temperatures to once again fall into the lower 30s. Critical Fire Weather Conditions for portions of the I-25 and Upper ridge axis shifts east of the area on Sunday with temperatures rebounding back into the 70s across the plains, 50s and 60s for the mountains and valleys and 40s for the higher elevations. The next upper low will deepen across the western U.
A line of showers continues to move eastward across portions of northwest Alabama, ahead of a cold front. High pressure will continue to slide eastward tonight, as upper ridging builds into the Plains. Thus, expect rather chilly overnight lows as our temps fall into the lower to mid 40s. The short term period will be dominated by high pressure at the surface and a ridge building in from the west.
449 AM MDT Sat Oct 16 2021 Little to discuss in the near term as a deepening trough slowly approaches the Pacific Northwest today. This will amplify a ridge of high pressure over the area resulting in sunny skies and milder temperatures. However, with regard to high temperatures in the lower valleys today, have some concern that low level inversions may limit warming. The ridge is driven eastward over the Plains on Sunday as the trough of low pressure reaches the West Coast. During the afternoon high clouds will begin to overspread the region as the West Coast trough swings inland. The trough closes off over the Great Basin Sunday night with modest levels of mid-level moisture arriving over southwest Colorado after midnight.
427 AM CDT Sat Oct 16 2021 (Issued 418 AM CDT Sat Oct 16 2021) Today through Sunday: Bust out the flannel and chili ingredients as this weekend will feel more like fall! After a cool start with temps in the upper 30s to low 40s this morning, expect daytime highs to top off closer to normal in the upper 50s to around 60 degrees as the upper-level ridge with northwesterly flow builds eastward into the region. However, today will be windy as 30-40 kt low-level jet works its way across the Upper Midwest on the backside of the exiting trough. This will result in slightly warmer temps with highs in the low to mid 60s.
237 AM MST Sat Oct 16 2021 High pressure over the region will yield mostly clear skies and quite seasonable temperatures this weekend though periodically breezy conditions will be common through south-central Arizona.
As ridge builds from the west, mid level winds will gradually decrease and back today/tonight. Otherwise, aforementioned ridge will bring clear/dry weather with temps into the 60s. Elsewhere, upper ridging and downslope flow will help most areas of south-central Montana climb into the mid 60s. Vertz Still very good agreement in a n upper low swinging across Wyoming and into the northern plains for the beginning of the work week. If it does occur, expect a rain/snow mix in the foothills, and mostly rain elsewhere in the lower elevations (including Billings).
Warmer temperatures are expected over the weekend with easterly winds today becoming southwesterly Sunday.
542 AM CDT Sat Oct 16 2021 An upper level trough extends from eastern WI south-southwest into AR.
Isolated showers over south central Alabama and the western Florida Panhandle along a cold front will move quickly off to the southeast this morning. A cold front currently near the I-65 corridor will move quickly southeastward through the remainder of the forecast area through the early morning hours. However, lows tonight will be much cooler and range from 45 to 50 degrees inland to the lower/mid 50s at the coast.
A long-awaited cold front is currently making its way across Middle Tennessee early this morning. Already, temperatures and dew points behind the surface boundary are taking a nosedive, and the atmosphere should dry out rapidly as high pressure quickly builds into Middle Tennessee behind the departing cold front. High pressure will dominate the local weather for the next several days as temperatures sink below normal for the first time in October.
1228 PM CDT Sat Oct 16 2021 Temperatures have warmed this morning and the threat for frost or freezing temperatures has ended. An upper level ridge will begin to work in from the west bringing a warming trend to the area with highs in the mid to upper 60s. Tonight will be warmer than this morning, but we could still see some patchy frost across our far northwestern zones. An upper level ridge will be working east across the forecast area. A cut off upper low will track out of the Rockies and across the central plains.
High pressure will continue to build in over the lower MS River Valley tomorrow as ridging builds in over the central US. With rising heights and increasing thickness, temperatures will be a little warmer than they were today.
206 PM CDT Sat Oct 16 2021 Finally feeling like fall across the Mid-South, courtesy of a strong cold front that moved through yesterday. The robust north to northwesterly flow building in with high pressure behind the front will continue to bring in cool, dry air this weekend.
Tonight Through Sunday Night High pressure to dominate the short term period with the first real Fall type airmass this season in place. Center of high pressure expected to remain well to our southwest so this should keep a weak gradient flow in the 3-5kt range overnight. This light wind coupled with relatively warm ground temperatures should help keep low temperatures around 40F most areas and inhibit frost formation despite the lower Tds. Weak warm air advection returns on Sunday with full sun and this should help bump highs back into the lower and middle 60s with westerly winds. Dry and clear conditions continue through Sunday night with low temps a few degrees warmer in the lower 40s.
Below normal temperatures will continue on Sunday, with highs in the low to mid 70s. (Sunday night through next Saturday) Expect low level southerly flow and warmer conditions to return this week.
Temperatures have climbed above the freezing mark across the far eastern plains of NM, thus have opted to cancel the Freeze Warning a couple hours early.
This is thanks to strong subsidence from approaching high pressure out of the western CONUS. As the western thermal ridge shifts east on Sunday winds will become southerly and begin to increase warm air advection across the state.
850mb winds will stay pretty brisk around 20-25 knots through the night as a result, but enough ridging looks to be in place to allow surface winds to die down into the calm to 5 mph range in most areas overnight. Not out of the question that a few spots on the Plateau could even see a touch of frost tonight, but dewpoints currently appear that they will remain above freezing with dewpoint depressions staying around 2 to 4 degrees - so any frost would be very isolated at best. The large upper trough that brought the strong cold front through our area last night will shift off to the east tomorrow, with a large upper ridge shifting eastward into the entire eastern CONUS through midweek.
Quick scan of reporting sites indicate a widespread freeze across the plains, so the highlight was good. upper level ridging is forecast to move across Colorado during the next 24 hours. This will allow temperatures to once again fall into the lower 30s. Critical Fire Weather Conditions for portions of the I-25 and Upper ridge axis shifts east of the area on Sunday with temperatures rebounding back into the 70s across the plains, 50s and 60s for the mountains and valleys and 40s for the higher elevations. The next upper low will deepen across the western U.
Mostly sunny skies and mild temperatures have developed this afternoon as high pressure builds across the region in the wake of a strong cold front. Another cool night expected Sunday night with lows in the 50s across most of S TX to the low 60s along the coast.
227 PM CDT Sat Oct 16 2021 This afternoon a mid level ridge was present over the western states and into Canada while a trough was progressing across the eastern CONUS, leaving the central Plains in northwest flow. Light westerly winds continue as high pressure remained the south over Texas this afternoon. Sunday the mid level ridge will move into the Plains as a trough moves across the eastern Pacific resulting in warm advection again with clear skies. Highs are expected to warm into the lower to mid 70s across the area.
PM CDT Sat Oct 16 2021 Heights will continue to build this evening through Sunday as an upper level ridge moves eastward. This will bring slightly warmer temperatures for Sunday afternoon with a small increase in thickness values. Surface lee pressure troughing will re-establish itself on Sunday bringing low end breezy conditions.
Highs will only reach the upper 50s on the Plateau and low to mid 60s elsewhere, which is around 15 degrees cooler than what we saw just yesterday. VFR will continue through the next 24 hours and beyond as dry high pressure settles over the region.
Highs will only reach the upper 50s on the Plateau and low to mid 60s elsewhere, which is around 15 degrees cooler than what we saw just yesterday.
Sunny skies are expected on Sunday with highs a few degrees above normal with readings in the lower to middle 60s.
An uneventful period will continue through tomorrow as an upper level ridge builds across the Plains. High pressure will continue to build and propagate east across the Desert Southwest through the day today. At the same time, a trough will begin to dig into the Pacific Northwest, which will aid in keeping the flow aloft progressive through the short term. Before the high pressure is situated over the Plains, another cool night is expected for the CWA. Temperatures tonight are expected to drop into the low 40s to mid 30s. High pressure will move over the area tomorrow, along with higher daytime temperatures. Most areas are expected to top out in the low to mid 70s.
An upper level ridge is building in this weekend, ushering in warmer temperatures than what we have had the last several days. 700mb temperatures on Sunday will be about 2-3C warmer than on Saturday, supporting slightly warmer highs at the surface.
Over eastern ND/RRV a bit more southwest wind 5 to 9 mph overnight and with boundary layer a tad warmer than last night expect lows 34-37 degrees. Will maintain the patchy/areas of frost wording but since most areas had frost or freezing temperatures earlier this morning no frost headlines will be issued. Sunny and a bit warmer Sunday as winds turn south and 925-850 mb warm advection begins in earnest. South winds 5 to 15 mph holds Sunday night and keeps lows in the lower 40s.
WV imagery shows an upper ridge extending from the PacNW down into Mexico, placing West Texas and Southeast new Mexico under zonal flow aloft. For those who like cooler weather, highs Sunday afternoon will come in at or below normal. around 4-5 degrees warmer than today.
VFR conditions will prevail today as high pressure builds into the region. At the surface, a broad anticyclone stretches from the Great Basin and central Rockies east into the central and southern Plains. The cold front which moved thru yesterday stretched from northern NY south and west into the western Gulf.
High pressure will then provide dry conditions the next several days with temperatures close to seasonal averages.
Below normal temperatures will continue on Sunday, with highs in the low to mid 70s.
330 PM CDT Sat Oct 16 2021 Quiet, cool, and dry weather persists through the remainder of the weekend as high pressure remains in control. Upper-level analysis early this afternoon depicts a large-scale trough making it's way toward the northeast US coast as ridging over the western CONUS amplifies. Some diurnal cumulus are noted across east-central IL where cyclonic flow on the backside of the departing trough is present. Northwest flow aloft remains positioned overhead, which has allowed cooler than normal temperatures to settle into central IL. As of 3 PM temperatures are sitting in the upper 50s to low 60s, which is surprisingly only a few degrees cooler than normal for mid October. An upper trough moves onshore the Pacific Northwest to start the new week.
234 PM CDT Sat Oct 16 2021 Through the short term period, a ridge presently over the western CONUS will gradually drift eastward and center over the plains states by Sunday afternoon.
141 PM CDT Sat Oct 16 2021 As the upper-level trough that provided the variable weather this week lingers across the Great Lakes region, a ridge shifts into our area today bringing a return to a period of quieter weather. This downstream trough is taking its time as it departs, keeping us in a tight surface pressure gradient today. The upper-level ridge axis makes it way across the Northern Plains tomorrow, reintroducing lighter winds, clear skies, and above normal surface temperatures.
Latest surface analysis had the cold front well off the Mississippi coast and the stratus in the wake of the front has shifted south of our CWA. Today will be much cooler with a gusty north wind. /22/ Prior discussion below: Today and tonight: A longwave trough currently over the Mississippi Valley early this morning will lift into the Mid- Atlantic by tomorrow morning. An associated surface cold front has cleared the CWA with a much drier and cooler airmass surging into the area.
220 PM MDT Sat Oct 16 2021 Strong upper level ridge will bring mostly clear and dry weather over the next 36 hours.
A broad but transitory upper level ridge/trough pattern was dominating the weather picture over North America today. Through the next 24-36 hours, the axis of the upper ridge over the western states will move out over the Plains. After a day of modest low level warm advection, tonights lows should be several degrees warmer, ranging from the upper 30s in the west to the low 40s over south central Kansas. As the upper ridge moves east on Sunday, we will see a low level response with lowering pressure in the lee of the Rockies.
1226 PM CDT Sat Oct 16 2021 An upper level trough extends from eastern WI south-southwest into AR.
This evening through Sunday night Upper-level ridging has moved into the area, but the ridge axis is still to the west of the area. As the weekend progresses, that ridge axis will shift eastward over the area continuing to keep the forecast warmer and drier. Fog lifts out by midday, while still remaining warmer and drier.
206 PM EDT Sat Oct 16 2021 Gusty west-northwest winds will continue to usher in much cooler and drier air into the region, as skies gradually clear this evening. As high pressure builds in from the west, dry conditions are expected for the next several days with temperatures close to seasonal averages. In the wake of a several-hundred mile long-tracked supercell and attendant cold frontal passage, conditions will continue to quickly improve across the CWA for the balance of the afternoon.
251 PM MDT Sat Oct 16 2021 This morning's H500 hand analysis map was showing a deep trough swinging across Eastern NOAM. ridging and mainly clear skies over the remainder of the CONUS. and phasing low pressure off the Pacific Coastline. The flow aloft will be backing to the Southwest overnight as the upstream trough moves closer to shore and pushes the ridge into the lee of the Rockies. This will be ushering in milder air then more wind and elevated moisture by Sunday night as the trough energy digs into the Western Great Basin. Temperatures will be milder with this shift in winds aloft ending the threat of the low valley freezing temperatures the next few nights and boosting temperatures up a few more degrees on Sunday.
Upper level long wave trough was pushing into the eastern CONUS with a trailing cold front to move south through the area overnight.
232 PM CDT Sat Oct 16 2021 Heights will continue to build this evening through Sunday as an upper level ridge moves eastward. This will bring slightly warmer temperatures for Sunday afternoon with a small increase in thickness values. Surface lee pressure troughing will re-establish itself on Sunday bringing low end breezy conditions.
Scattered showers have developed ahead of a cold front that was pushing into interior se Ga this afternoon. Strong high pressure will build into the area tonight and Sunday with breezy northerly winds bringing cooler and drier air to se Ga/ne Fl. and into the low/mid 60s at the ne Fl beaches.
An upper trough extending over the Ohio Valley down through the Deep South will continue to progress eastward through the day today.
55 Skies will remain clear today across Arkansas behind a cold front that brought much drier and cooler air across the state. Today Through Sunday Night Early morning water vapor satellite imagery showed a well defined upper trough over the Ohio River valley with broad upper level ridging over the western Continental United States (CONUS). Subjective surface analysis at 4 am showed that cold frontal boundary had pushed into the Gulf of Mexico south of Arkansas, but remained over land in southeast Alabama. The drier and cooler air allowed temperatures to fall into the mid 40s to low 50s so far this morning, and we can expect temperatures to fall another couple of degrees before we hit early morning lows right after sunrise.
The low level waa on south-southwesterly winds really starts to kick in on Sunday, with temperatures expected to warm into the mid 60s to mid 70s. Upper low center crosses along the southern portion of or just south of the CWA mid week.
High pressure is in control at the surface with northwest flow/weak ridging occurring overhead. Low temperatures will drop into the upper 30s in some lower-lying and valley areas, but most of the region will fall in the lower to mid 40s. Temperatures will be a few degrees warmer, but still largely in the lower to mid 70s for highs.
SHORT TERM (Now through Sunday Night): A cold front continues to move south into Mexico. Drier, cooler air is settling in across Deep South Texas this afternoon and we'll be able to bask in this taste of fall through the rest of the weekend. The high will mosey through eastern Texas and Deep South Texas on Sunday, providing us with a light north to northeasterly breeze through much of the short term.
In the meantime, broad upper level troughing aloft will continue to drag colder air across the Great Lakes through tonight. Lows tonight ranging from the upper 30s to the low 40s. The forecast period begins with a trof extending from an area of low pressure over Hudson Bay through western Quebec and a large area of high pressure centered over the Oklahoma/Arkansas area. The synoptic moisture begins to depart to the east throughout the day Sunday, but will probably be late Sunday with precipitation ending from southwest to northeast as a ridge of high pressure and associated dry air from the aforementioned high over Texas begins to push into the Great Lakes region.
Winds are already becoming southwesterly on the west side of the ridge across northwestern Oklahoma, and winds will continue to become southerly throughout the area overnight into Sunday as this ridge moves to the east. With the return of southerly flow, temperatures will be a little warmer tomorrow than today, but remain near or slightly below average for the day.
/22/ Latest surface analysis had the cold front well off the Mississippi coast and the stratus in the wake of the front has shifted south of our CWA. Today will be much cooler with a gusty north wind. /22/ Prior discussion below: Today and tonight: A longwave trough currently over the Mississippi Valley early this morning will lift into the Mid- Atlantic by tomorrow morning. An associated surface cold front has cleared the CWA with a much drier and cooler airmass surging into the area.
Frost seems to be a little less likely tonight given temperatures expected to be a tad warmer and winds around 5mph but the usual cool spots along with locations within protected valleys may see very patchy frost develop by early tomorrow morning.
251 PM CDT Sat Oct 16 2021 Weak ridging is starting to build into the region this afternoon which will shut of the CAA that has been ruling the region.