Aikyam-Lab/Synoptic-Bench huggingface dataset:
233 AM MST Tue Nov 10 2020 Dense freezing fog has developed early this morning across parts of Phillips, Valley and Daniels Counties. A weak ridge moves through the area today with dry weather and somewhat warmer temperatures. The next upper trough pushes a clipper system through Montana tonight and Wednesday morning with a cold front.
As a cold front approaches from the west tonight into Wednesday morning, showers will continue to become more numerous while a few thunderstorms also develop as GFS K-index values rise into the mid to upper 30s, especially along and east of I-65. Highest precip chances with this event look to be over our eastern counties where deepest moisture will arrive prior to cold front passage on Wednesday.
551 AM CST Tue Nov 10 2020 (Today and tonight) The cold front is here and moving southeast through the area. Clouds will decrease from the west, so some warming is expected this afternoon despite the cold advection, but high temperatures will be noticeably cooler than yesterday. Clear skies tonight will allow temperatures to fall to near freezing across northern and western Oklahoma Wednesday morning.
416 AM MST Tue Nov 10 2020 Current surface map places high pressure across the Dakotas. Upper low located across Colorado. Upper low tracks through Nebraska today. Upper trof moving into the Pacific Northwest will replace current upper trof, bringing a chance of snow Wednesday night. Zonal flow will bring another fast moving/moisture starved trof to the area for the weekend, followed by building ridge.
528 AM CST Tue Nov 10 2020 Cold front continues to blast southeast across the forecast area early this morning, currently located across the Flint Hills from Eureka to the Winfield. A strong cold front has pushed through the region this morning. Metzger A sharp cold front in southeast Kansas will shift surface winds around to the north northwest today, with northwest winds expected in most locations by mid day.
Scattered rain showers and MVFR conditions across Northeast Oklahoma should continue to spread eastward this morning as a cold front moves into the CWA. Cold front looks to reach BVO over the next couple of hours and exit Northwest Arkansas TAF sites early afternoon. /Issued 333 AM CST Tue Nov 10 2020/ Strong cold front currently pushing into north-central Oklahoma, extending southwest to just east of Altus. With light winds and clear skies tonight, temperatures will likely fall to near or just below freezing across portions of northeast Oklahoma and northwest Arkansas with areas of frost. Tulsa metro may remain just above freezing with low temperatures in the mid 30s.
Main weather feature today will be a cold front sweeping in from the NW. Today Through Wednesday Night As of 10Z, surface fields indicate the incoming cold front is making its way through eastern KS and central OK. Much drier air will filter in behind the boundary as high pressure settles in from the northwest.
/issued 331 AM CST Tue Nov 10 2020/ Upper level low responsible for this morning's Pacific front will rapidly move into the western Great Lakes region through tomorrow morning.
333 AM CST Tue Nov 10 2020 Strong cold front currently pushing into north-central Oklahoma, extending southwest to just east of Altus. With light winds and clear skies tonight, temperatures will likely fall to near or just below freezing across portions of northeast Oklahoma and northwest Arkansas with areas of frost. Tulsa metro may remain just above freezing with low temperatures in the mid 30s.
The associated cold front will move into southeast Missouri and southwest Illinois by 00z Wednesday, then across the entire PAH forecast area by around 06z Wednesday. High pressure will build into the middle Mississippi valley behind the cold front on Wednesday.
Warmer temperatures return this weekend. Today: Warmer around 3-9 degrees at the lower elevations and 8 to 13 degrees in the mountains.
The forecast area remains squeezed between Tropical Storm Eta in the eastern Gulf and high pressure centered over the western Atlantic. A cold front will approach the area by late tonight into Wednesday, providing the impetus for widespread showers and embedded thunderstorms as it encounters the very moist environment. while a cold front has drifted into north GA.
A cold front moved through northeast Kansas yesterday evening and overnight. A shallow layer of much cooler air has been rapidly filtering into the area behind the front with surface temperatures observed to fall from the 70s into the 30s and 40s. There remains some concern in north- central KS for a light wintry mix this morning as temperatures hover near freezing in the lowest few thousand feet of the atmosphere.
Rain arrives late tonight into Wednesday as a cold front crosses the region. 850 mb temperatures about a degree C cooler than yesterday, but still looking at highs mostly in the lower to mid 70s. A trough/associated cold front will tap into a growing plume of tropical moisture to produce widespread rain showers tonight. Wednesday a surface cold front will sweep across the region, with rain showers ahead of the feature. Some clusters of heavier rain showers are possible ahead of this front as in addition to moisture ahead of the upper level trough, a plume of tropical moisture will arrive from the southeast.
The precipitation will move out of the area by the early morning hours as the upper level trough pushes east and brings dry air across the Panhandles cutting off any lingering moisture potential. Temperatures today will be about 15 to 20 degrees lower than yesterday with the post-frontal cooler airmass in place.
A cold front will bring a good chance for showers tonight along with a rumble of thunder and gusty winds.
Temperatures will remain below freezing at the surface and aloft through the day as well, meaning any precipitation that falls should be strictly snow.
The surface cold front is far off in southeast Nebraska, while the axis of the upper level trough moves over the state today. An upper level low at 700 mb centered over north central Nebraska provides decent lift, and the dendritic growth zone is located on the east side of this low. High temperatures will be in the 40s across most of the area, except for far north central Nebraska, which will only get up to the low 30s.
523 AM CST Tue Nov 10 2020 For the 10/06Z TAF period, low clouds continue to stream northward in advance of the next cold front proceeding through the area this evening and overnight. /Tuesday through Wednesday/ Warmer than average conditions continue ahead of the next cold front set to arrive across our northwestern zones later this Tuesday evening. The low chance for those showers diminish overnight.
352 AM CST Tue Nov 10 2020 A cold front moved through northeast Kansas yesterday evening and overnight. A shallow layer of much cooler air has been rapidly filtering into the area behind the front with surface temperatures observed to fall from the 70s into the 30s and 40s. There remains some concern in north- central KS for a light wintry mix this morning as temperatures hover near freezing in the lowest few thousand feet of the atmosphere.
Interaction between high pressure in the western Atlantic and Tropical Storm Eta in the southeast Gulf of Mexico is producing a tight pressure gradient over the eastern Gulf of Mexico.
421 AM CST Tue Nov 10 2020 (Issued 420 AM CST Tue Nov 10 2020) Today through Wednesday: Strengthening low pressure will move southwest to northeast through Wisconsin today, dragging a cold front through the area. Much better chance to see gusts reach or top 45 mph in the eastern half of the forecast area this evening into tonight behind the cold front. It will dry out quickly behind the front mid to late evening, with dry weather then expected through Wednesday as high pressure moves into the area.
331 AM CST Tue Nov 10 2020 Upper level low responsible for this morning's Pacific front will rapidly move into the western Great Lakes region through tomorrow morning.
217 AM MST Tue Nov 10 2020 Current surface map places high pressure across the Dakotas. Upper low located across Colorado. Upper low tracks through Nebraska today. Upper trof moving into the Pacific Northwest will replace current upper trof, bringing a chance of snow Wednesday night. Zonal flow will bring another fast moving/moisture starved trof to the area for the weekend, followed by building ridge.
536 AM CST Tue Nov 10 2020 (Today and tonight) A band of showers, associated with a Pacific front and upper trough, will move quickly east across the Big Country overnight, with a few light showers possibly affecting areas east of a Coleman to Junction line between 6 and 9 AM this morning. A few low lying protected areas may possibly briefly hit the freezing mark.
317 AM CST Tue Nov 10 2020 Cold front continues to blast southeast across the forecast area early this morning, currently located across the Flint Hills from Eureka to the Winfield. Meanwhile a cold front will continue to push southward across the region. A sharp cold front in southeast Kansas will shift surface winds around to the north northwest today, with northwest winds expected in most locations by mid day.
(Today and tonight) A band of showers, associated with a Pacific front and upper trough, will move quickly east across the Big Country overnight, with a few light showers possibly affecting areas east of a Coleman to Junction line between 6 and 9 AM this morning. A few low lying protected areas may possibly briefly hit the freezing mark.
Rain arrives late tonight into Wednesday as a cold front crosses the region. H85 temp on 12z BUF sounding was warmer than expected at +15c. A trough/associated cold front will tap into a growing plume of tropical moisture to produce widespread rain showers tonight. Wednesday a surface cold front will sweep across the region, with rain showers ahead of the feature. Some clusters of heavier rain showers are possible ahead of this front as in addition to moisture ahead of the upper level trough, a plume of tropical moisture will arrive from the southeast.
1141 AM CST Tue Nov 10 2020 (Today and tonight) A band of showers, associated with a Pacific front and upper trough, will move quickly east across the Big Country overnight, with a few light showers possibly affecting areas east of a Coleman to Junction line between 6 and 9 AM this morning. A few low lying protected areas may possibly briefly hit the freezing mark.
Much of the area is expected to drop into the 30s with much of the northwest half near freezing by morning.
144 PM CST Tue Nov 10 2020 The passage of the Pacific front last night will help keep temperatures cooler today. Highs will mostly stick to the 60s with 70s along the Rio Grande, and lows overnight will drop below freezing in Southeast New Mexico.
147 PM MST Tue Nov 10 2020 20z surface analysis had weak low over southwest ND with trough into WY. Upstream trough noted over southwest Canada into the northern Rockies. Some guidance suggests a few flurries over the highest elevations. Wednesday, upper trough speeds east/southeast into the northern plains pushing a cold front through the CWA in the afternoon.
Synoptic lift is still strong through early morning as an upper trough swings into the Plains. First, is the fact that the warm layer aloft near 800 mb has not completely cooled enough to prevent a wintry mix of freezing rain/sleet from occurring. However, the dendritic growth zone in mid-levels may not be saturated enough to support the introduction of ice crystals for snow, so freezing drizzle is a possibility this morning as well. I did cut snow amounts form the previous forecast due to the lingering liquid freezing precipitation. The deep layer moisture and lift quickly decreases as the trough continues moving east. Plenty of cold air advection will keep highs in the lower to mid 30s for much of the CWA, except perhaps struggling to near 40 or so in our southwestern CWA.
1142 AM CST Tue Nov 10 2020 The cold front is currently draped across northwest MO to Kansas City, extending SSW from there toward southeastern Kansas. Showers are ongoing across NW Missouri and eastern Kansas, and these showers will continue to move the northeast over the next few hours, and will eventually take on a more eastward progression as the cold front currently across eastern Kansas swings west to east through the region this morning.
A more active weather pattern arrives late in the week with heavy mountain snow, a mix of rain and snow in the lowlands, and potential for windy conditions. We will be watching convective showers developing this afternoon and continuing into the overnight hours for areas of Southern WA and the lower ID Panhandle. Main uncertainty will be the temperatures at the start of the event which will be above freezing for many elevations below 3000 feet. Confidence is above normal for scattered convective showers to develop over the lower Basin and track into the Palouse and lower ID Panhandle this evening and overnight. Winter Weather Advisory until 4 AM PST Wednesday for the higher elevations of the camas prairie for Lewis and Southern Nez Perce Counties.
219 PM CST Tue Nov 10 2020 Cold front has pushed through the entire area this afternoon with a line of showers across northwest Arkansas. Expect locations across NE OK/ NW to see subfreezing temperatures by tomorrow morning, especially the typically cool valley locations. Warmer temperatures are expected from there as high pressure moves east.
1134 AM CST Tue Nov 10 2020 Cold front continues to blast southeast across the forecast area early this morning, currently located across the Flint Hills from Eureka to the Winfield. Lingering MVFR cigs behind departing upper trof will scatter out and vacate the area later this afternoon. KED A sharp cold front in southeast Kansas will shift surface winds around to the north northwest today, with northwest winds expected in most locations by mid day.
WV imagery shows progressive upper trough is located across the Great Plains and central CONUS this morning with anomalous upper ridge centered across the far western North Atlantic. JB Chattanooga Airport, TN 67 74 61 74 53 / 70 70 40 10 0 Knoxville McGhee Tyson Airport, TN 63 72 59 70 53 / 60 90 60 10 0 Oak Ridge, TN 62 69 57 70 50 / 70 90 50 10 0 Tri Cities Airport, TN 62 76 59 69 53 / 60 80 80 20 0.
The pressure gradient between TS Eta to our SW and high pressure to our NE over the western Atlc will support breezy/gusty conditions especially along the coast. Despite considerable clouds and showers, it will be warm and humid with max temps reaching the low to mid 80s. Since seas are forecast to only slowly subside, may need to extend the High Surf Advisory through Wednesday. East to southeast pressure gradient between TS Eta near the western tip of Cuba and high pressure over the western Atlc will support around 20 knots of wind.
351 PM EST Tue Nov 10 2020 A cold front will provide showers tonight and cooler temperatures for the rest of the week.
328 PM EST Tue Nov 10 2020 South winds will continue to increase into this evening ahead of a strong cold front. Showers and isolated thunderstorms will increase later this evening as the cold front approaches.
Expect for these scattered showers to continue before an uptick in coverage tonight as a cold front moves closer. The aforementioned cold front will pass through the area during the day tomorrow, leading to much cooler temps in the NW compared to those along the Plateau.
Two distinct areas of increasing precip chances look likely tonight, one across the west after 01Z in association with cold front, and another area across central/southeast portions of the area where pre-frontal moisture advection should aid in development. A strong cold front will race east early tonight and bring a good chance for showers, gusty winds, and possibly a rumble of thunder. It does not appear that there will be much of a risk of severe weather as instability will be virtually zero by the time the front arrives early tonight; however, wind gusts up to 45 mph are still possible given strong mid level winds extending down into the lower levels.
So far, amounts have been relatively light, and this is expected to remain the case in the lower elevations.
1158 AM EST Tue Nov 10 2020 Record warmth is expected again this afternoon, but rain chance returns late tonight with a cold front. Insolation, a very warm atmospheric column, and mixing will again result in near-record warmth today as extensive high pressure over the ern CONUS further erodes. The resulting pressure gradient between east coast high pressure and midwestern low will support more this afternoon. A trough/associated cold front will tap into a growing plume of moisture to produce widespread rain showers tonight and Wednesday. High pressure and drier air will diminish rain chances behind the front, although light rain should continue along and ahead of it due to persistent warm, moist advection and strong jet dynamics within southwesterly flow aloft. Cooler air will be slower to filter in behind the front, leaving area temperatures above climatological averages Wednesday.
253 PM CST Tue Nov 10 2020 Above normal temperatures finally took a tumble today across the remainder of the forecast area as the cold front passed through.
Upper level analysis across the country shows a deep longwave trough encompassing the entire western 2/3s of the CONUS, ridge east of there (centered just off the Carolina coast), and Eta over the southeastern Gulf.
A round of heavier rain showers will accompany the passage of a cold front overnight. Highs tomorrow will range from around 60 degrees in Northeast Arkansas and the Missouri bootheel to in the lower 70s across much of Northeast Mississippi. Temperatures are very mild for this time of year, with readings in the low to mid 60s areawide. A few warm air advection showers are expected to move into north Mississippi and west Tennessee by late morning and early afternoon ahead of an approaching cold front. High pressure will build in behind the front on Wednesday with clearing skies by late afternoon.
Cold front is currently entering northwest AR and will move east of the area by 20Z. Cold front extends from the extreme tip of northwest AR into southeast OK, with a band of scattered showers along the boundary.
Much cooler air will move into the region through the evening and overnight hours as the cold front moves through, ending our abnormally warm stretch of temperatures we have witnessed over the past week.
Meanwhile a cold light rain continues across much of central into northern and western Iowa, and all day has been freezing to elevated surfaces in our northern and northwestern counties but not accruing on pavement or roadways. Meanwhile, a large area of accumulating snowfall has developed over much of eastern South Dakota, northeastern Nebraska, and far northwestern Iowa and will track northeastward with the parent cyclone through this evening, bringing light accumulations to our far northwestern counties in a few hours. Lingering light precipitation will clear our northern counties early tonight, after which dry and quiet, albeit much cooler weather will return for several days.
Skies will clear behind the low which will lead to good radiational cooling potential. However, any snow cover could moderate highs by 5 degrees especially given the cold air advection in the afternoon behind the front and with the upper trough.
High pressure will shift off to the east of the FA. A few teens cannot be ruled out along the lower Arkansas river basin near the Colorado border. With weak lee troughing, light winds are expected during the daytime.
Could see a couple wind gusts this afternoon as a surface cold front inches closer TN. A couple of light showers are possible this afternoon at CKV/BNA/MQY otherwise showers will hold off until a cold front gets closer to the terminals this evening and overnight.
238 PM CST Tue Nov 10 2020 Should see clearing behind a cold front that is moving quickly through the area.
1109 AM CST Tue Nov 10 2020 (Today and tonight) The cold front is here and moving southeast through the area. Clouds will decrease from the west, so some warming is expected this afternoon despite the cold advection, but high temperatures will be noticeably cooler than yesterday. Clear skies tonight will allow temperatures to fall to near freezing across northern and western Oklahoma Wednesday morning.
A deep upper level trough is present over the Four Corners region of the southwestern United States with an upper level ridge present over the western Atlantic. By Wednesday, the upper level trough begins ejecting over the north-central United States as the upper level ridge begins to weaken and shift east slowly. Morning temperatures will be anomalously warm for this time of year, with lows primarily in the lower 70's across the area.
SHORT TERM (Now through Wednesday Night): Weak mid level ridging will continue over Deep South Texas through the short term with a longwave trough in the Plains tracking to the east and Tropical Storm Eta continuing to meander in the eastern Gulf. While the front itself will not make it past the northern Ranchlands, prefrontal troughing will allow for this wind shift to make it through the entire RGV.
Temperatures will continue above normal with lows in the lower 70s and highs in the low/mid 80s.
Could see a couple wind gusts this afternoon as a surface cold front inches closer TN. High pressure situated to our east will give way to a cold front that is approaching Middle Tennessee from the west and will sweep through the mid state Tuesday night.
The moisture plume is stuck between the ridge centered just off the Mid Atlantic coast and T. A cold front will move into NW GA Wed evening providing the impetus for widespread showers and embedded thunderstorms as it encounters the very moist environment. With the drier air beginning to move into NW GA Late Wed night, portions of NW GA will see lows dip into the lower 60s.
1046 AM EST Tue Nov 10 2020 Southeast winds are enhanced this morning across the Florida Keys, driven by Tropical Storm Eta to our southwest and a sprawling high pressure system over the western North Atlantic. Strong southeast breezes prevail across the coastal waters of the Florida Keys, driven by Tropical Storm Eta to our southwest and a sprawling high pressure system over the western North Atlantic.
1041 AM MST Tue Nov 10 2020 Current surface map places high pressure across the Dakotas. Upper low located across Colorado. Upper low tracks through Nebraska today. Upper trof moving into the Pacific Northwest will replace current upper trof, bringing a chance of snow Wednesday night. Zonal flow will bring another fast moving/moisture starved trof to the area for the weekend, followed by building ridge.
A weak little clipper system will also track along the Canadian border Wednesday into Wednesday night, which may bring a dusting of snow to areas north of the highway 2 corridor. High pressure dominates the remainder of the work week as a frigid Canadian airmass sinks into the northern tier.
238 PM CST Tue Nov 10 2020 Dense cloud cover and scattered light rain showers have overtaken the area this afternoon, thanks to the combination of an influx of tropical moisture and increasing lift from an approaching upper-level trough from the west. Temperatures have not budged most of the day and remain in the lower 70s as of 21z. Overnight, expect the coverage of showers to increase as the upper trough and its associated front approach the area. A weak cold front will swing into the area by midday Wednesday, serving as a focus for a scattered to numerous showers throughout the day. Despite weakening as it moves into the region, the cold front will take its time moving through the area.
Very light freezing rain or sleet was over Vilas county but warm pavement should keep it from producing icy at least through dusk. The surface warm front could make it into the Fox Valley during the evening hours bringing rising temperatures and perhaps scattered thunderstorms with strong winds as the surface based inversion dissipates. Clouds should clear late tonight, with sunny and cooler weather Wednesday.