Aikyam-Lab/Synoptic-Bench huggingface dataset:
720 PM EDT Tue May 16 2017 High pressure will hold dry weather and above normal temperatures across the area through most of the week. Overnight lows will be a bit warmer than last night after a very warm day today, and forecast low level jet overnight which may help to keep the boundary layer disturbed enough to prevent ideal radiational cooling despite mostly clear skies.
855 PM MST Tue May 16 2017 A series of low pressure systems will move through the Desert Southwest this week bringing cooler temperatures, breezy conditions, and a slight chance of showers and thunderstorms to the higher terrain of eastern Arizona. Upper trough axis has cleared east close to the TX/OK panhandles this evening and any diurnally driven radar returns quickly dissipated off radar scopes just after sunset.
/issued 309 PM CDT Tue May 16 2017/ High pressure settled over the southeastern U.
In the upper levels ridging remains over the Southeast.
High pressure then builds in through the remainder of the week with temperatures rebounding back to above normal values late in the week and into the upcoming weekend. An upper level low moving into the Pacific Northwest brought a cool airmass to the district today. Drier air moves in rapidly on Wednesday morning as the upper low moves into the Great Basin. The warming trend will continue towards the end of the week and into the weekend as an upper level ridge moves towards the west coast and settles just offshore.
753 PM EDT Tue May 16 2017 High pressure will result in dry and very warm conditions through mid-week.
1050 PM EDT Tue May 16 2017 Summerlike Bermuda High Pressure will persist over the region through the work week maintaining above normal temperatures.
650 PM CDT Tue May 16 2017 Very active weather pattern shaping up from the Lower Missouri Valley in the coming days as upstream satellite trends show two potent upper-level disturbances across the Western U. Moving forward to the daylight hours on Wednesday, latest deterministic guidance continues to highlight a strong synoptic signal for severe storm development along the eastward moving dryline/Pacific cold front by Wednesday afternoon. A few details: 1) Aforementioned upper trough will take on a strong negative- tilt by late morning/early afternoon directly off to our west, suggesting max DPVA and synoptic-scale lift will be centered directly over our region by afternoon. 3) Very strong wind fields will exist aloft, as a midlevel speed max of close to 100 kts rotates into the region along the underbelly of the previously mentioned, negatively-tilted trough.
1141 PM CDT Tue May 16 2017 Deep southerly flow is in place across the central US today, helping to again boost temperatures in the low to mid 80s. A dryline is currently aligned from the Texas and Oklahoma Panhandles into western Kansas, where it merges with a cold front that extends north into the eastern Dakotas. An upper level low will then lift northeast across Kansas and Nebraska tomorrow, nudging a weak frontal zone southeast into the forecast area.
High pressure will remain over the western Atlantic for the next few days, with a general east to southeast wind flow in place and winds shifting onshore with the sea breeze near the coast each afternoon and evening.
830 PM EDT Tue May 16 2017 A large subtropical ridge over the southeastern United States will dominate our weather through most next 7 days.
Main change for evening update was to add patchy fog generally along and north of Highway 200 as latest run of high res-models continues to indicate some fog developing after midnight as cooler airmass backs its way into the area. Much colder air from Canada will move in and we'll likely see frost two or three nights this week as overnight lows dip in the low 30s.
Sending an update to consolidate the High Wind Warning for the Guadalupe Mountains and the Wind Advisory for the western half of the forecast area. Farther west, good surface pressure rises of 1mb/hr look to persist for a few more hours so have extended the Wind Advisory from SE NM, south through the Big Bend region until 400 am CDT, and the High Wind Warning in the Guadalupe Mountains until the same time.
1025 PM EDT Tue May 16 2017 Aviation section updated Dry weather under high pressure continues until Wednesday night. Surface analysis shows Strong High pressure in place over the Carolinas. with a broad area of low pressure stretching from Wisconsin to the Texas panhandle. trended lows warmer than the previous night. Wednesday should be dry with Indiana still sandwiched between high pressure to the southeast and low pressure to the west. Wednesday night still looks like upper ridging will control the weather over much of the area, but NAM/GFS/ECM are all in agreement with putting some qpf over the southwestern counties associated with a weak upper wave.
An upper low pressure system continues to slide southeast this evening. A secondary wave within the closed circulation will swing down on the back side of the upper low and bring numerous snow showers overnight to the John Day Highlands and the southern Blue Mountains, mainly above 3500 feet. Then the upper low will bring some wrap around moisture for numerous snow showers over Wallowa County, mainly above 4000 feet, for late tonight through early Wednesday afternoon.
736 PM EDT Tue May 16 2017 High pressure through Wednesday with increasing temperatures. I did adjust Elkins low temperature down a few degrees based on current dew points and overall model guidance values cooler than current forecast. Upper level ridging in place providing mainly clear conditions and very warm air with the passage of a warm front earlier this morning. Do have concerns that slight might need to be added to the highest ridges in Randolph/Pocahontas for Wednesday, but will go dry for now.
An upper level low over NM is expected to move northeastward tonight acrs the far sern corner of CO and then into northwest KS by 12Z Wed. By late night, the mtns and high valleys should have little chance for pcpn, while wrap-around pcpn on the back side of the upper low, is expected to be found over the eastern plains. Wed afternoon that upper low will continue moving east and into wrn IA by evening. At the same time, a new upper level low is expected to move into southern ID. Ahead of the ID upper low, mstr and pcpn chance are expected to increase again along the Continental Divide.
/issued 218 PM CDT Tue May 16 2017/ SHORT TERM (Now through Wednesday Night): Tranquil weather conditions are anticipated through the short term forecast period as Deep South Texas and the Rio Grande Valley remains on the northern and northwestern periphery of 500 mb high pressure.
854 PM PDT Tue May 16 2017 Low pressure tracking southeast through the Pacific Northwest tonight will lead to localized rain showers, as well some significant snow accumulations in the mountains of the central and southern Idaho.
On this date in Florida Keys weather history, in 1994, the low temperature at Key West International Airport was 82 degrees. In addition, this low temperature of 82 degrees is tied as the warmest minimum temperature ever observed in Key West during the month of May.
Strong ridge over the area continues to produce clear skies tonight which will allow for radiational cooling to drop East TN Valley temperatures into the upper 50's for areas north, and into the middle 60's elsewhere in the valley by morning. Chattanooga Airport, TN 64 90 68 86 / 0 0 10 30 Knoxville McGhee Tyson Airport, TN 64 88 67 86 / 0 0 10 30 Oak Ridge, TN 64 91 66 87 / 0 0 10 30 Tri Cities Airport, TN 58 88 60 84 / 0 0 10 20.
Although the tornado threat should lessen as the boundary layer stabilizes, intense mesoscyclones may persist resulting in a significant hail and secondary wind threat until storm intensity decreases and/or consolidation occurs. But alas, this respite will be short-lived as the next longwave trough approaches the area.
1158 PM CDT Tue May 16 2017 WV imagery this afternoon showing a deep longwave trof cutting through the western CONUS with potent southern tier vort max currently over southern CA/western AZ. relatively weak low pressure was centered in eastern CO with a stagnant thermal boundary extending into eastern Neb then northern IA. A second boundary/cold front was situated from central MN to southwest SD.
635 PM CDT Tue May 16 2017 Main change for evening update was to add patchy fog generally along and north of Highway 200 as latest run of high res-models continues to indicate some fog developing after midnight as cooler airmass backs its way into the area. Much colder air from Canada will move in and we'll likely see frost two or three nights this week as overnight lows dip in the low 30s.
648 PM CDT Tue May 16 2017 Deep southerly flow is in place across the central US today, helping to again boost temperatures in the low to mid 80s. A dryline is currently aligned from the Texas and Oklahoma Panhandles into western Kansas, where it merges with a cold front that extends north into the eastern Dakotas. An upper level low will then lift northeast across Kansas and Nebraska tomorrow, nudging a weak frontal zone southeast into the forecast area.
A strong cold front will drop south on Wednesday delivering a round of gusty winds and more cool temperatures to the region.
The upper level ridge continues to bring above average temperatures along with dry conditions to the mid state.
1138 PM EDT Tue May 16 2017 A large subtropical ridge over the southeastern United States will dominate our weather through most next 7 days.
1216 AM CDT Tue Oct 31 2017 For the 31/06Z TAF period, VFR conditions with 5-6Kft cloud deck beginning to nudge into our western terminals in east Texas late tonight as a weak cold front shifts into the region this evening through Tue morning. 02z sfc analysis shows a weak cold front continuing to make steady progress south and east into our region. Other changes were made to diurnal trends as temperatures were actually a little warmer in the wake of the boundary across our northwest zones and this is due to mixing.
253 AM EDT Tue Oct 31 2017 High pressure early this week. Weak cold front continues to push through forecast area, with a stratus deck trailing it. These clouds should gradually dissipate/move out from SW to NE this morning as high pressure moves in at the surface. For the most part, have temperatures above freezing before any precipitation begins to fall. Southwesterly flow and warm front will bring plenty of moisture to the region on Wednesday.
After a chilly start with high pressure over the eastern portion of the region, the warmup will begin quickly and continue through the short term period.
142 AM EDT Tue Oct 31 2017 An approaching weak cold front will stall and dissipate. General ridging will remain in the region during the rest of the week. GOES-16 Low level water vapor loop indicates the jet has gotten as far south into the region as it is going to get, and is actually bumping back northward a touch in response to ridging ahead of the upper low in the southwestern states. The models show dry high pressure ridging into the region from the west and north Tuesday and Tuesday night. Some moisture increase will occur Wednesday with an onshore flow associated with the ridge to our northeast. Model time-height displays exhibit high-level moisture with little moisture recovery in the lower levels.
A cold front associated with this upper feature pushed through the Panhandles over night with gusty north winds in its wake. A weak southern stream upper low is now entering southwest AZ per water vapor imagery. Latest model guidance has shifted this low further south as it approaches the plains while the better forcing with the northern trough is progged a bit further north. Models are also trending drier/warmer in the lowest 850mb and also drier in the dendritic growth zone. Thus, can't completely rule out a flurry mainly between 06z and 15z Tuesday, with the best chance being near the OK Panhandle closer to the northern stream trough. Winds will also shift to the southwest and become gusty as a lee trough develops as temperatures rise into the low 50s.
Even cooler temperatures have been reported in some island interior locations.
Not near the coolest on record, but much cooler than the past 15 years. If precipitation reaches the surface, accumulations are not expected due to very light snowfall rates and temperatures near or slightly above freezing. After the wave departs, downslope flow to the west will warm the low- levels.
The actual cold front appears to be located from just south of Jonesboro, to near Mena.
400 AM CDT Tue Oct 31 2017 A low-amplitude mid-upper level trough will push through the Plains today and into the Mississippi Valley later tonight. Would have little impacts with boundary layer temps above the freezing mark.
256 AM CDT Tue Oct 31 2017 Water Vapor imagery shows a mid and upper level low pressure system moving through AZ and NM this morning which is creating some mid level WAA over Northeast NM and Eastern Colorado. Most of the short range models bring the weak high pressure across Northeast KS and into Central Missouri. This progged orientation of the high pressure to the mid level low in NM promotes an easterly component to the surface winds creating a strong over running signature over much of Kansas today. This set up will also make day time highs for today tricky as a web bulb affect could make afternoon highs a few degrees cooler than forecast, especially along the I-70 corridor.
248 AM CDT Tue Oct 31 2017 Cool surface ridging has settled over the region with light northeasterly breezes and 07Z temperatures ranging from the middle 30s to lower 40s. The lower atmosphere may be just cold enough (after wet-bulbing effects) for a little wintry mix (sleet or snow) generally north and west of Lubbock through mid-morning, if any precipitation can occur there in this time period.
349 AM CDT Tue Oct 31 2017 The synoptic pattern early this morning features fairly zonal flow over the area as the trough that has plagued the region recently slowly deamplifies. Given the dry low- level airmass in place, the wet bulb temperature is below zero throughout much of the atmospheric column except the lowest few hundred feet.
550 AM EDT Tue Oct 31 2017 High pressure will nose in from the southwest and the deep upper level low over the Great Lakes will lift out to the north.
Accumulations should stay minor with the highest accumulations up to a 1/2 inch possible along and north of highway 96.
Early this morning a few snow flakes are possible in the higher elevations of Steuben County. This evening the low level flow will remain favorable for lake effect rain/snow showers over northern Oneida County and northern Steuben and Yates counties. A dusting of snow is possible in the higher elevations of northern Oneida County. After midnight the low level flow will back in response to the next approaching system.
631 AM EDT Tue Oct 31 2017 High pressure early this week. Weak cold front continues to push through forecast area, with a stratus deck trailing it. These clouds should gradually dissipate/move out from SW to NE this morning as high pressure moves in at the surface. For the most part, have temperatures above freezing before any precipitation begins to fall. Southwesterly flow and warm front will bring plenty of moisture to the region on Wednesday.
Clouds are increasing ahead of shrtwv trof with -SHRA expected to develop after 10Z-11Z. Trof will move thru quickly exiting/clearing skies mostly after 17Z. Latest sfc analysis shows the cold front entering the Big Bend area, w/post-frontal highs this afternoon ranging from the upper 50s north to 80s south. Synoptically, WV imagery shows the west coast trough has moved onshore, and is over the nrn Gulf of California. Incoming cloud cover associated w/the trough will retard radiational cooling overnight, w/freezing temps anticipated only in the Guadalupes and nrn Lea County. However, NAM soundings suggest -FZRA will be possible in the higher elevations of the Guadalupes around 12Z Tue.
A few light showers possible over the higher terrain of northern Mohave County early this morning. A stronger system will bring windy and cooler conditions over the weekend along with mountain snow and chances for valley rain.
Early this morning a few snow flakes are possible in the higher elevations of Steuben County. This evening the low level flow will remain favorable for lake effect rain/snow showers over northern Oneida County and northern Steuben and Yates counties. A dusting of snow is possible in the higher elevations of northern Oneida County. After midnight the low level flow will back in response to the next approaching system. Behind the wave, a warm front will develop in our vicinity and edge slowly northward with time.
337 AM CDT Tue Oct 31 2017 Clouds continue to stream southeast in cyclonic flow around the large eastern low pressure system. Winds will temporarily increase to 10 to 15 mph this morning after decreasing toward sunrise, but after that, as the ridge axis moves by, winds should be under 10 mph as directions shift from northwest to southwest this evening, and south overnight. Wind chills won't be too much cooler than the actual temperature thankfully, so an extra layer or two of clothes might be pretty affective under that costume. ERVIN Wednesday Cloudy, breezy and a bit warmer than the past few days into the upper 40s on avg.
247 AM PDT Tue Oct 31 2017 Cool weather will continue this week under weak low pressure aloft.
Also tweaked temperatures a little warmer north with more clouds. It still looks like most areas will see lows in the lower 30s with a few pockets of 29 to 30.
After a mostly sunny and warmer day on Tuesday, things get much more active again starting Tuesday night and lasting through Wednesday. A 994 mb low will form over eastern MT on Tuesday night and pressure falls associated with this developing low and significant lee troughing will tighten low level gradients significantly. Gradients will slowly weaken on Wednesday night as a cold front sags slowly south into our northern counties.
High pressure builds into the region today providing a continuation of clear skies and dry conditions. Coastal areas will be cooler due to an afternoon sea breeze. High pressure lifts to the northeast tonight.
The temperatures during the snow will hover right around freezing and thus given the warm road conditions little to no snow is expected to accumulate on roadways. Cold is the word for this Halloween with temperatures hovering right around freezing during the prime time trick or treat hours of 5-8 pm. This period continues to appear dry with a roller coaster ride of temperatures as cold fronts periodically track across the region. We will actually be getting warm air advection throughout the night on Tuesday and thus lows Tuesday night will only fall a few degrees below freezing and then Wednesday appears to be one of the better days of the week.
414 AM CDT Tue Oct 31 2017 Today through Tonight: A dry cold front, along a line from KMLU-KGWO-KTUP, continues to ooze its way southeast this morning, but not for much longer. Significant 850mb flow from the SW will result in the destabilization of the atmosphere in the aforementioned areas allowing dewpoints to rise to the low to mid 60's by late morning.
518 AM EDT Tue Oct 31 2017 High pressure will nose in from the southwest and the deep upper level low over the Great Lakes will lift out to the north.
312 AM MDT Tue Oct 31 2017 Current surface analysis shows high pressure southeast of the forecast area, with a warm front extending south from low pressure over southwest Canada and into central MT. Upper level analysis continues to show fast northwest flow across the region between long wave trough over the eastern US and ridging off the west coast. Some milder air will build into the area as warm front tracks east, and west to southwest winds develop. A cold front will arrive early Wednesday and move southeast across the CWA during the day. Snowfall will mostly be limited to the higher elevations of northeast WY, the Black Hills, and far northwest SD. The higher elevations of the northern Black Hills and WY Black Hills will likely see an inch or two of snowfall later tonight into Wednesday morning.
351 AM CDT Tue Oct 31 2017 (Today and Tonight) Expect much cooler temperatures and a chance of rain today. Also, much cooler due to the widespread cloud cover and the rainfall.
High pressure will be in control of the area tonight with a weak and dry cold front pushing southward into the area early Tuesday morning. A second cold front will begin to approach the area late Tuesday night and could bring a slight chance of showers by sunrise Wednesday across the far northwest. Temperatures will be about 10 degrees warmer tonight as moisture creeps into the area with south to southwesterly low level winds ahead of the approaching front. Slightly cooler temperatures in the northwest on Tuesday as the front stalls across the southern third of the area due to the strong ridging to our south, with mid to upper 60s in the north and low to even a few mid 70s in the south.
331 AM EDT Tue Oct 31 2017 A weak dry cold front will move through from the north late today.
A cold front, along a KGTR-KMLU line, will stall and begin lifting back to the north during the afternoon. /26/ Today through Tonight: A dry cold front, along a line from KMLU-KGWO-KTUP, continues to ooze its way southeast this morning, but not for much longer. Significant 850mb flow from the SW will result in the destabilization of the atmosphere in the aforementioned areas allowing dewpoints to rise to the low to mid 60's by late morning.
Temperatures are in the lower 30s in the protected valleys but mostly in the upper 30s and lower 40s. several degrees warmer than Mondays cold start. A weak cold front was moving through the eastern sections but clouds were absent and winds were light.
120 AM EDT Tue Oct 31 2017 High pressure will remain over the southeastern states today, ahead of a weak cold front that will settle into North Carolina tonight. The front will retreat north of our region Wednesday, with following warm high pressure extending across the eastern states through the end of the week. A narrow ridge of high pressure at the surface and aloft over the Carolinas will drift eastward overnight into Tuesday. The sw flow and the moderating air mass will result in overnight temperatures a couple of degrees warmer than last night under mostly clear skies. A weak and dry cold front will sag southeast into the western Carolinas early tomorrow, where it will stall through tomorrow night as it aligns parallel to broad mid level troffing.
The higher clouds should prevent temperatures from falling too far during the overnight.
Behind the front, temperatures are slightly cooler with north winds around 5 knots. Isentropic lifting above the front to allow for increased rain chances today, first across east Texas followed by widespread rainfall across the entire region this afternoon and tonight with the highest rain chances along an axis from deep east Texas through extreme northwest Louisiana into south-central Arkansas. High temperatures today are forecast to climb into the lower 60s across much of the region with possibly the lower 70s south of the frontal boundary across north-central Louisiana. Rain chances to persist through the remainder of the workweek as upper-level flow remains zonal at the base of a longwave upper- trough.
As of mid afternoon, surface analysis revealed a cold front stretched right along the Ohio River between Indiana and Kentucky. Satellite imagery showed mostly sunny skies prevailed as well ahead of the front, and readings ranged from the lower 60s across southern Kentucky to the upper 40s across southern Indiana. Cold air advection and clearing skies will put overnight lows down into the lower 30s for most locations. On Tuesday, the day will start off mostly sunny as high pressure quickly moves overhead. Trick-or-treaters will need to bundle up tomorrow evening for their outdoor activities as readings fall into the low/mid 40s during the evening then reaching the 30s overnight.