Aikyam-Lab/Synoptic-Bench huggingface dataset:
514 PM EDT Thu Oct 27 2022 High pressure will bring a period of dry weather which will last through the weekend. It will be considerably cooler than it has been earlier this week, but there will be a gradual warming trend through this weekend. High pressure across the Northeast will maintain fair weather through Friday. This will result in favorable radiational cooling conditions tonight, with temperatures falling to near or below freezing for most areas, but a touch warmer near the lakes. Patchy valley fog may develop tonight, but expect coverage to be limited due to the dry air mass and below freezing temperatures. Friday will be warmer with highs in the 50s and light winds less than 10 mph.
(Tonight through Friday) Temperatures and dew points are running a few degrees warmer across the board at sunset. The upper low over New Mexico late this afternoon will continue to dig further southeast to over West-Central Texas overnight. Lows will range from the mid to upper 40s northeast to the low 50s south and central. The upper low will move over the Dallas Metroplex during the day Friday while high pressure persists over New England with persistent wedging down the Appalachians. Highs will range from near 70 in the higher elevations east to the upper 70s far south and far west.
528 PM EDT Thu Oct 27 2022 High pressure centered over Lower Michigan this afternoon will drift to the east over the next several days, bringing a string of pleasant mid autumn days.
Benign weather and cooler than normal temperatures will continue today through Thursday as cool high pressure will remain parked overhead during this period.
615 AM EST Wed Mar 3 2021 With high pressure moving east of the region, warmer conditions are expected today. A weak cold front will move through the area tonight, bringing some clouds, but no significant chance of precipitation. Cooler conditions are expected behind the front for the rest of the week. Ahead of an approaching cold front, the pressure gradient will increase, with some wind gusts to around 20 mph (maybe as much as 25 MPH) possible this afternoon. Between roughly 22Z-08Z this afternoon and overnight, a cold front will move SSE through the ILN forecast area. Min temps will range from the upper 20s to lower 30s behind the cold front. This high will provide continued dry weather through the weekend.
The upper low moving into southern California this evening will lift northeastward into the central/southern Rockies by Thursday morning, before moving out across the central high Plains Thursday afternoon. The initial lift and moisture flux ahead of the upper low will affect central Kansas by late Thursday afternoon, so will continue to show small PoPs generally west of I-135.
507 AM EST Wed Mar 3 2021 Other than slight precipitation chances north and east of Pittsburgh tonight with a crossing cold front, high pressure should maintain dry weather through the weekend. Some increase in cloud cover is expected late in the day as the front drops south across the Lower Great Lakes and NW PA. Slight precip chances are expected N of I 80 and in the ridges overnight, with marginal lake and terrain enhancement, though lowering subsidence inversions and less than optimal low lvl moisture should limit this activity.
459 AM PST Wed Mar 3 2021 A storm system that tracks eastward across southern California Wednesday will bring slightly cooler temperatures and a slight chance of light precipitation to the Kern county mountains and over the higher elevation of the Sierra.
A low pressure system will bring increasing south winds today followed by chances for light showers to mainly northwest Arizona tonight through early Thursday morning. High pressure will briefly build in afterward bringing warmer temperatures heading into the weekend.
209 AM MST Wed Mar 3 2021 Mean central NOAM ridging will prevail through the end of the week, supporting mild temps and dry weather over the region. Lee- side trough will remain over the region with general light flow through the work week. Easterly upslope flow may limit temps some east of the trough on the SD plains.
After low temperatures bottomed out in the low to mid 70s for the island communities, temperatures have already climbed into the upper 70s to near 80 degrees, well on its way to highs in the low to mid 80s this afternoon. Surface analysis indicates a weak cold front that stretches from the Bay of Campeche northeastward to near Fort Myers continues to slug its way southeastward towards our coastal waters. Light to gentle breezes will become northwest to north and freshen tonight as a cold front limps through the island chain.
702 AM EST Wed Mar 3 2021 Other than slight precipitation chances north and east of Pittsburgh tonight with a crossing cold front, high pressure should maintain dry weather through the weekend. Slight precip chances are expected N of I 80 and in the ridges overnight, with marginal lake and terrain enhancement, though lowering subsidence inversions and less than optimal low lvl moisture should limit this activity.
With temperatures near/below freezing, some snow melt could refreeze, leading to some isolated slick spots.
Warmer daytime temperatures continue into today before another storm system brings a chance of showers, mainly north of Tucson, this evening into Thursday morning.
Have increased high temperatures into the mid and upper 50s across portions of central and north-central Illinois, low to mid 50s across northeast Illinois, and held onto some locally reduced readings in the low 40s over the lingering tenacious snowpack (latest SWE values still in the 1-2 inch range in spots).
High pressure centered along the mid Atlantic coast is providing clear and calm conditions early this morning. A weakening Alberta clipper low will quickly move eastward across the Saint Lawrence River Valley this morning, dragging a moisture challenged cold front southward into central Pennsylvania by this evening.
Dry weather and a clear sky continue across the region under southerly surface flow and mid-level ridging today, pushing temperatures into the 60s across the region.
For tonight, clear skies and light wind will allow for rapid cooling and temperatures should drop well into the 30s at most places for lows, with even some readings near freezing possible at the normally colder spots of north central MS.
Through the day, high pressure will make for settled conditions and temperatures warming into the mid to upper 60s around the region. Through the end of the PD, Chc PoPs will enter the Wrn portion of the state again as an upper trof traverses over the Cntrl US and ejects across the Natural State.
Also, warmer today with highs in the lower 70s and lows tonight in the 40s.
High pressure will remain the main focus of the short term with a continued stretch of much needed dry weather. However, a back door cold front will usher in a slight cooler day for Thursday. Lows tonight will be chilly, but may see a bit more mixing overnight with the back door cold front, thus, only put a slight ridge valley split in for the more sheltered valley locations.
Cooler air remains east of the line, with much warmer temperatures to the west.
A weak cold front, sagging through the area this morning, will bring little more than a wind shift to the north and northwest by early afternoon. Overnight lows are expected to drop into the teens and low 20s for most locations; however, the Northwoods could see single digits as fairly fresh snowpack remains and that area will be closer to the high pressure center, allowing for lighter winds.
A low pressure system will move across southern Nevada tonight bringing a few snow showers to the Great Basin National Park area of White Pine County.
Temperatures are hovering near freezing early this morning, so some areas of freezing fog may also develop, but it should burn off quickly after sunrise. Highs will likely be a couple degrees cooler in the low 40s today than yesterday due to an increase in cloud cover.
Sheltered valleys are in the lower 20s. Breezy westerly low-level flow will advect in warmer air ahead of a weak front dropping south from the Great Lakes. The cold front sinks south through the area tonight, veering winds northerly behind it. Skies will remain mainly clear due to a lack of moisture, and Thursday morning lows will be in the low to mid 30s.
High temperatures are expected to be 2 to 4 degrees warmer each day than the previous day reaching near normal today and slightly above normal Thursday. Lows tonight will be 3 to 8 degrees warmer.
Current dew points are higher than at this same time yesterday, but the warmer temperatures today will offset the modest increase in the dew points to keep relative humidities low.
An upper low near the Baja area/California gradually advances into the southern/central Plains through Thursday while a longwave trof evolves over the easternmost portion of the CONUS. Have continued with afternoon highs around 60 to the lower 60s, then for tonight lows range from the mid to upper 30s inland to the mid 40s at the immediate coast.
231 PM EST Wed Mar 3 2021 Sunny and dry conditions are expected through the short term as low pressure system clears out of the region. Have continued to trend towards the lower end of guidance for dew points given the very dry air mass and the expected atmospheric mixing.
At the surface, high pressure dominates with light and variable winds and lows this morning in the upper 20s to low 30s. Upper level ridging will amplify today ahead of the next system. And the best chance for more than a tenth of an inch of rain will be southwest of a line from Cambridge, NE to Smith Center, to Beloit Kansas.
SW flow this afternoon will generally back overnight, then veer to west by late Thursday morning and become gusty in response to an approaching upper level trough. /issued 210 AM CST Wed Mar 3 2021/ Weak ridging will reside over the area in wake of the disturbance kicking east of the Mississippi Valley. Warmer temps will accompany the progressive setup with temps jumping into the 70s today with more widespread U70s and 80s for Thursday as downsloping westerly winds will help warm the region up quickly ahead of the next trough. A low hanging fruit opportunity for place like GDP and the higher terrain of Eddy and Culberson will likely push High Wind Warning criteria mid Thursday afternoon as prime mixing will aid in some strong gusts exceeding the warning criteria.
High pressure at the surface is bringing clear skies and much drier conditions to the region. Chattanooga Airport, TN 62 39 67 37 57 / 0 0 0 0 0 Knoxville McGhee Tyson Airport, TN 59 37 61 33 53 / 0 0 0 0 0 Oak Ridge, TN 60 36 62 33 53 / 0 0 0 0 0 Tri Cities Airport, TN 57 33 56 28 49 / 0 0 0 0 0.
Highs should be in the lower to middle 40s, highest west of Madison. Strong high pressure will remain north of the region tonight into Thursday night, with light winds expected across the area. Think that the short term models and NAM may be overdone with the low clouds and fog, though can see some of this occurring with light winds and dew point depressions trying to lower toward 12z Thursday.
1032 AM EST Wed Mar 3 2021 High pressure over the lower Mississippi Valley will build east into the area today through Thursday.
222 PM CST Wed Mar 3 2021 Satellite imagery this afternoon shows clear to partly cloudy skies over most of the area, with a bit more cloud cover over the northern portion where some thicker mid clouds have been able to develop along the eastern periphery of the upper ridge and leading edge of slightly better mid-level moisture. The warming trend looks to persist through the weekend as the upper ridge builds east and amplifies across the central part of the country.
Thursday night through the weekend sees the ridge overhead further amplify across the region.
255 PM EST Wed Mar 3 2021 A weak cold front will cross the region Thursday from the north.
There is evidence of a cumulus cloud line that has formed over the favored locations along the Lower Keys this afternoon, with has sparked a few sprinkles to very light showers and even a few waterspouts south of the airport (a reminder that summer is right around the corner). Temperatures are well above climatological normals for this time of year, with all available surface observations reporting temperatures in the lower 80s at this hour. It is also quite muggy, with dew points in the lower 70s.
Upper level heights are increasing with a ridge located to the west across the Great Plains.
A gradual shift toward cooler conditions in the near future, as steady amplification of the mean trough anchored east/northeast effectively shifts a lower height field into the great lakes with time tonight and Thursday. This will net a solid 10 to 15 degree downturn in temperatures Thursday relative to today - readings parked below freezing across the thumb.
150 PM EST Wed Mar 3 2021 A cold front continues to push across the Peninsula today and is now south of our CWA. In addition to some beneficial rainfall most of us received with this band of convection, the other good news is this front will advect some relatively cooler and drier air into the region as we experience northerly flow for a day or so. Similar to yesterday's discussion, models concur with developing a potent area of low pressure in the Gulf this weekend. As this low tracks east across the Peninsula, significant isentropic ascent appears likely throughout the low/mid levels. Behind this disturbance, high pressure builds back into the region.
Was even more conservative at GTR and JAN that may be on the edge of the low stratus/fog. High pressure over the region and very light/calm winds overnight resulted in some early morning fog. guidance is split between a few degrees cooler and more in line with the current forecast. Given the warmer end of the spectrum within the guidance. For tonight, clear skies and light wind will allow for rapid cooling and temperatures should drop well into the 30s at most places for lows, with even some readings near freezing possible at the normally colder spots of north central MS.
Accumulating rain and high elevation snow will begin to spread into northern Arizona this evening through Thursday morning with much cooler temperatures on Thursday.
Wall to wall sunshine then expected for Thursday under high pressure with afternoon readings close to our increasingly warm seasonal norms.
Mid-level clouds remain mostly west of the Red River, with temperatures ranging from the lower teens near Lake of the Woods to near 30 degrees in southeastern North Dakota. Cooler air remains east of the line, with much warmer temperatures to the west.
120 PM MST Wed Mar 3 2021 Flat ridging will build up through Thursday as an upper low over southern California slides east and stays south of the area as it moves it Colorado. TWH Dry and warm conditions will prevail into the weekend with high pressure over the region.
351 PM EST Wed Mar 3 2021 High pressure builds back in tonight through the weekend, while a developing offshore low is expected to move well south and east of the region over the weekend. High pressure will continue to build across the region tomorrow, allowing for deep NW flow leading to warm and dry weather conditions. A dry cold front will push through the area late in the day allowing for breezy conditions to occur along the coast. The models continue to exhibit good run to run continuity and are in excellent agreement regarding the track of developing low pressure off the southeast coast this weekend. The model trend continues to keep the low suppressed south and further offshore with a cool but dry weekend now expected.
This lowered RH values more and combined with the winds and temperatures will lead to elevated fire weather conditions in parts of western OK and western north TX this afternoon so have issued a Fire Danger Statement (RFD).
Looks like a few places have already climbed into the low 50s, otherwise still expecting temps to get into the low 60s by this afternoon.
High pressure over the lower Mississippi Valley will extend into the region tonight and Thursday. A dry cold front will move southeast across the area late Thursday.
At the surface, the center of the low pressure system has made the jump across the FL peninsula from the Gulf over to the Atlantic, placing the forecast area in dry northerly flow.
Temperatures should get into the low to mid 60s. /issued 235 AM CST Wed Mar 3 2021/ High pressure continues to build into the Mid-South this morning.
Cooler air has already filtered in behind, with a 20 degree temperature difference from Daytona to Gainesville (71 vs 52 respectively). Because of the quicker pace to the line of showers and frontal boundary, lowered high temperatures a few degrees ranging from the low 70s north of I-4 to near 80 degrees for the Treasure Coast. Low clouds behind the front should begin to clear by the early afternoon, leading to a pleasant and cooler evening and overnight. IFR/MVFR cigs spreading across most of the area this morning as a cold front stretches from KDAB to KTPA. (modified previous) A cold front will make its way southeastward across the local Atlantic waters today, beginning this morning at the Volusia Coast and reaching the Treasure Coast this afternoon.
1014 AM MST Wed Mar 3 2021 Mean central NOAM ridging will prevail through the end of the week, supporting mild temps and dry weather over the region. Lee- side trough will remain over the region with general light flow through the work week. Easterly upslope flow may limit temps some east of the trough on the SD plains.
1018 AM EST Wed Mar 3 2021 A cold front over the Upper Great Lakes will press through our region tonight. Leftover snow showers will be found across the North country in association with a weak warm front. as a wavy cold front will take aim on the region from the Upper Great Lakes. Aloft, a ridge of high pressure will remained anchored over Greenland this period, sending heights falling over the Northeast and Eastern Great Lakes region, while an upstream ridge of high pressure amplifies over the Plains. Within this deepening trough over our region temperatures at 850 hPa will average in the low negative teens, cold enough to support lake instability.
The passing of this morning's cold front will bring some slightly cooler air over the forecast area tonight and Thursday. Overnight lows will be near normal ranging from the low to middle 10s in north-central and far northeast Wisconsin to the upper teens to low 20s in central and east-central Wisconsin.
A building ridge with sunny skies but generally light winds (ie.
1153 AM CST Wed Mar 3 2021 An upper ridge will extend across the Central U. today as a closed upper low moves into southern CA. The closed upper low will move into the Four Corners Region by late tonight. Thursday, the upper low center will move into far southeast CO. Latest models have trended this low pressure system slightly further south. Another mild day and went near to slightly above the warmer guidance for highs around 65 central and east, to upper 50s to near 60 southwestern areas. The upper low will turn southeast into the TX panhandle and western OK Thursday night.
231 PM EST Wed Mar 3 2021 A mainly dry cold front will pass through this evening, then high pressure will press down from Nunavut and Hudson Bay. Temps will drop into the m20s N and near freezing in the valleys of the SE. Arctic high pressure will extend down into the Gulf Coast states. The coldest of the air will be pressing through the lower lakes and New England. Clearing will mainly be for the srn half of the area Fri and Sat with the high sliding down, but the axis staying to the west.
Temperatures were in the upper 40s to the lower 50s. Sheltered valleys are in the lower 20s. Breezy westerly low-level flow will advect in warmer air ahead of a weak front dropping south from the Great Lakes. The cold front sinks south through the area tonight, veering winds northerly behind it. Skies will remain mainly clear due to a lack of moisture, and Thursday morning lows will be in the low to mid 30s.
1238 PM EST Wed Mar 3 2021 Low pressure tracks off the Carolina coast today. High pressure returns later in the week. Dry weather continues through at least this weekend as another area of low pressure tracks well to the south of the local area. This afternoon, high pressure is centered off the Va coastline, while low pressure continues to organize off the SC coast as it moves ENE out to sea. Winds are light out of the SSW with temperatures in the low to mid 50s as of 12:25 PM. A dry cold front crosses the area on Thursday. High pressure near the Hudson Bay will start to build in from the NW following the FROPA.
Clear skies have dominated the region today as high pressure at the surface continued its influence. temperatures will warm into upper 50's to mid 60's across most locations with upper 40's expected in the higher terrain.
Another closed low was still off the coast of CA. Some upper ridging and weak wind flow aloft was in between all of this and across the CWA. Upper ridging is expected to continue over the area today with plenty of sunshine. Upper ridging will continue over the area tonight and we'll probably have temperatures remain above the freezing mark for most locations. Some valleys may dip into the lower 30s. As the closed low moves out of the Rockies and into the high plains on Thursday, low level southerly flow will increase ahead of a developing surface system and we should start to see moisture increase ahead of the low in the plains.
High pressure at the surface is bringing clear skies and much drier conditions to the region. High pressure at the surface will bring VFR conditions to all TAF sites. Diegan Chattanooga Airport, TN 39 67 37 57 36 / 0 0 0 0 10 Knoxville McGhee Tyson Airport, TN 37 61 33 53 32 / 0 0 0 0 10 Oak Ridge, TN 36 62 33 53 32 / 0 0 0 0 10 Tri Cities Airport, TN 33 56 28 49 27 / 0 0 0 0 10.
141 PM EST Wed Mar 3 2021 A mainly dry cold front will pass through this evening, then high pressure will press down from Nunavut and Hudson Bay. Temps will drop into the m20s N and near freezing in the valleys of the SE. Arctic high pressure will extend down into the Gulf Coast states. The coldest of the air will be pressing through the lower lakes and New England. Clearing will mainly be for the srn half of the area Fri and Sat with the high sliding down, but the axis staying to the west.
Highs will be in the lower to mid 60s, but it will feel quite nice outside due to the abundant sunshine. Temperatures should quickly rebound tomorrow afternoon as the ridge builds further east and we receive continued sun under a cloudless sky. Went a touch on the warmer side of guidance since our temps tend to exceed expectations under these conditions, but this only resulted in raising forecast highs by a degree or two, and overall conditions will be very enjoyable.
This afternoon upper level ridging and sfc southerly flow will enable high temps to climb into the upper 70s across the area and upper 80s for the Rio Grande. Tonight's temperatures will be rather mild as temps will range from the low 40s to 50s throughout the area. An upper level trough over the coast of SoCal will move out over the Four Corners by Thursday morning. The upper level trough will then move over the southern plains by Thursday evening. As a result 700 mb winds and a tight pressure gradient (associated with the upper level trough) will support high winds at GDP. The High Wind Watch for the Guadalupe and Delaware Mountains Thursday afternoon has been upgraded to a High Wind Warning.
SHORT TERM (Tonight through Thursday night): 500mb ridge across the central United States tonight will shift eastward Thursday into Thurs night as a 500mb low/trough across the western U. high pressure across the east-central U. tonight into Thursday with east to southeast flow across the lower Texas coast. Low pressure will develop across the Texas panhandle Thurs night. Patchy fog will develop across the coastal sections of the CWA tonight as dewpoints recover across the lower Texas coast and winds are light.