Aikyam-Lab/Synoptic-Bench huggingface dataset:
522 AM CST Wed Nov 10 2021 An upper level trough is still on track to move through western and north central Nebraska today, bringing light rain to some areas. The atmosphere is well saturated from 850 through 300 mb, and forecast soundings show there should be decent lift in the low to mid levels coinciding with the trough passage. Although rainfall is possible across the forecast area along the trough, it appears that north central Nebraska will have the greatest rainfall totals since that should be the location of greatest lift and moisture. The trough will exit the area to the east this afternoon and rain will taper off at that time. Winds will be come gusty out of the northwest behind the trough. A deep closed low will move south from Saskatchewan into the upper Midwest during the day.
High pressure will increase across the region through the end of the week leading to a warming trend and high temperatures 5 to 10 degrees above normal starting Thursday, lasting through the weekend. Aside from breezy conditions across the Lower Colorado River Valley today and Thursday, winds will remain light, while skies remain clear to mostly clear. A fast moving trough has already exited the region with clear skies and subsidence aloft following behind. The subtle cooling associated with the trough will last for one more day providing highs from the lower 80s across the south-central Arizona deserts to around 85 degrees for western desert areas. An upper level ridge currently situated just to the west of Baja is forecast to amplify and gradually shift eastward over the next couple days eventually nudging over our region.
642 AM EST Wed Nov 10 2021 Dry weather should continue today under building high pressure. Rain returns Thursday night with a crossing cold front.
Water vapor images show a northwest flow across central CA as a ridge of high pressure builds over the west coast. Some fog also developing in the low lying areas of the central valley. A ridge off the Baja coast starts building northward and inland over CA and PacNW for the remainder of the week and dominates the weather pattern through the weekend. The ridge will also bring a warming trend over the area.
534 AM EST Wed Nov 10 2021 Dry weather should continue today under building high pressure. Rain returns tonight with a crossing cold front.
Thick cirrostratus was also moving into west-central Oklahoma, ahead of the mid-level trough that was centered in the vicinity of Raton, NM. Observed temperatures range from the low 40's (northwest Oklahoma) to mid 60's (southeast Oklahoma). The main vorticity maxima swings into the panhandles around mid-day, pushing the cold front into northwest Oklahoma. By 3-5PM, the upper trough nears west-central Oklahoma and significant cooling aloft should allow the cap to weaken with SBCAPE increasing to near 2000 J/kg. While the high-res models show development right over the OKC metro, other models show development to the east.
341 AM CST Wed Nov 10 2021 Early morning satellite imagery shows a southwesterly stream of cirrus sliding to the east as an upper level ridge axis translates eastward. Additional cooling is possible as early morning temperatures are expected to drop into the low to mid 40s. Underneath the ridging, high temperatures today are expected to reach the mid 70s, although some areas may reach the upper 70s if debris cirrus from anticipated convection in the Southern Plains does not move in until this evening. With the increasing pressure gradient ahead of the approaching cold front, moderate southerly gradient winds develop Thursday with gusts approaching 30 mph in the afternoon. While there may be isolated thunderstorms embedded in the rain, the earlier cold front timing will limit surface heating and prevent any stronger storms from developing.
This has given way to mostly sunny skies, as high pressure remains in place over the srn Atlantic Basin, while upper ridging continues to translate ewd across the SE states. With the increasing pressure gradient ahead of the approaching cold front, moderate southerly gradient winds develop Thursday with gusts approaching 30 mph in the afternoon. While there may be isolated thunderstorms embedded in the rain, the earlier cold front timing will limit surface heating and prevent any stronger storms from developing.
207 AM MST Wed Nov 10 2021 Generally cooler conditions are expected today with gusty westerly winds behind a cold frontal passage early this morning. After a few cooler days on Wednesday and Thursday, expect warmer temperatures over the weekend, with a chance for a passing rain or snow shower. Cold front has crossed north-central and southwest Montana this morning with only residual snow falling across the mountains and western and northwestern slopes.
The frontal boundary will pick up momentum later today, as an upper trough digs down into the southern plains. Should be a reinforcing shot of cooler air behind the front. High pressure will move in on Thursday Night, with winds becoming light and variable, and little in the way of cloud cover.
A weak disturbance will bring the threat of showers to northern Utah Thursday followed by drier and warmer conditions this weekend.
Temperatures will climb very slowly into the lower 40s north of highway 200, with middle 40s to near 50 degrees to the south.
356 AM CST Wed Nov 10 2021 Brief mid level ridging will scoot across the region today, keeping conditions rainfree and seasonably mild. However, a mid level trof and associated surface front will move east from the Southern Plains into MO tonight. Drier and cooler air will funnel in behind the surface front Thursday night as a deep mid/upper level low digs southeast into the Midwest and western Great Lakes.
Daytime temperatures will remain a bit cooler today and tomorrow due to light north to northeast winds.
(Today) Mild and breezy conditions today with the primary focus being the approaching cold front which will is expected to be near western Osage / Pawnee counties by late afternoon.
A weak warm front will spread partly half way across the FA through the early morning hours. The front will be quickly followed by a cold front through the mid to late morning hours. The highest pops will continue across the eastern counties near the Highway 281 corridor. For tonight, high pressure will sink southward across the High Plains.
542 AM CST Wed Nov 10 2021 (Today) Mild and breezy conditions today with the primary focus being the approaching cold front which will is expected to be near western Osage / Pawnee counties by late afternoon.
A deepening low pressure system will move southeastward out of Saskatchewan tonight, reaching central Minnesota on Thursday afternoon. This looks like a good setup for High Wind Warning level winds on the western South Dakota plains due to the tightness of the surface pressure gradient to the west of the low, along with relatively strong cold advection and surface pressure rises.
High pressure currently centered along the Georgia coastline is meandering eastward over the western North Atlantic. In addition, we can see this on the BYX VAD profile which shows a wind from the northeast through the lowest three thousand feet and abruptly becoming southeast above that. As the aforementioned high pressure continues an eastward journey, winds will clock around and become southeast at the surface by Thursday. Meanwhile, in the lower and mid levels, winds will further clock around to the south and southwest. Thereafter a pre-frontal trough will push through and turn our winds from the northeast. Aloft, flow will remain cyclonic due to a longwave trough dipping into the western and central Gulf of Mexico.
323 AM MST Wed Nov 10 2021 High pressure will increase across the region through the end of the week leading to a warming trend and high temperatures 5 to 10 degrees above normal starting Thursday, lasting through the weekend. Aside from breezy conditions across the Lower Colorado River Valley today and Thursday, winds will remain light, while skies remain clear to mostly clear. A fast moving trough has already exited the region with clear skies and subsidence aloft following behind. The subtle cooling associated with the trough will last for one more day providing highs from the lower 80s across the south-central Arizona deserts to around 85 degrees for western desert areas. An upper level ridge currently situated just to the west of Baja is forecast to amplify and gradually shift eastward over the next couple days eventually nudging over our region.
528 AM CST Wed Nov 10 2021 Unsettled weather looks to return to the region today as an upper level trough digs eastward across the Northern Plains. Temperatures during this time will also be a touch cooler than yesterday, as cloud cover limits highs into the upper 40s to low 50s. Given that cloud cover will also be on the downward trend, have overnight lows falling into the low to mid 30s.
Low pressure was beginning to organize in the southern Plains as a long wave trough pushes out of the Rockies. A warm front extended into southern MO/southern IL. The trough will deepen as a strong cold front pushes across the dvn cwa tonight. The strong cold front should be reaching the MS River by 12z Thu. The reason for the quick exit of rain will be the pronounced mid level dry slot arrival as the low pressure rapidly occludes over the upper Great Lakes.
Diegan Chattanooga Airport, TN 74 52 68 45 62 / 0 0 80 50 10 Knoxville McGhee Tyson Airport, TN 73 49 69 45 60 / 0 0 70 70 10 Oak Ridge, TN 72 48 67 43 59 / 0 0 80 60 10 Tri Cities Airport, TN 72 47 67 45 58 / 0 0 50 80 10.
314 PM EST Wed Nov 10 2021 High pressure continues the dry, warm weather through tonight. A strong cold front crosses Thursday night. Reinforcing cold fronts bookending the weekend make for cool, unsettled weather. This feature will lift a relatively dry warm front north across the area later tonight. Meanwhile, the pressure gradient tightens up as the associated cold front approaches from the west increasing H850 winds to 45-50 knots from the southwest by Thursday night. The strong H850 winds will bring considerable warm advection rising sfc temperatures into the lower 70s lowlands, ranging into the lower 50s highest elevations of our northeast mountains Thursday. A cold front will approach the region Thursday evening, moving through the area on Thursday night.
Northwest downslope winds in the lower levels will persist throughout the period, reinforcing a much drier air mass across western Kansas. Cooler air filtering into western Kansas and clearing skies tonight will allow temperatures to drop well down into the 30s(F) by daybreak Thursday morning. Expect afternoon highs up into the 50s(F) Thursday with the lower 60s(F) possible near and along the Oklahoma border.
Discussion: An upper level trough continues to dig into the plains this afternoon with weak ridging developing across the Tennessee Valley. Tonight will feature dry conditions and slightly warmer overnight lows compared to previous nights. As the upper level trough continues to move across the plains, an area of low pressure anchored at the surface will lift NE into the Midwest tonight and into the Great Lakes by Thursday. A cold front is progged to move through the middle Mississippi River valley tonight and into the Tennessee Valley on Thursday.
Expect temperatures to tumble tonight as northerly winds continue in the wake of the cold front that pushed south this morning. Despite the aforementioned 700mb moisture, no precipitation is expected as large scale descent occurs in the wake of the upper trough currently located over the Panhandles. Moving ahead to Thursday, as northwesterly flow aloft continues over the Plains, expect cooler temperatures across the CWA given the trend toward lower heights overall. Disturbance looks to rotate around an upper low located over the northern Coteau des Prairies, pushing another cold front southward through the Plains, with this feature arriving during the overnight hours.
Current temperatures are in the low to middle 70s across the area and probably won't warm more than another degree or two resulting in afternoon high temperatures in the middle 70s, or about 10-15 degrees above normal. A cold front will sweep across the Midsouth into tomorrow. It will take a little while for the cooler air to filter into the area. High temperatures tomorrow will still be above normal but about 5-10 degrees cooler than today.
240 PM CST Wed Nov 10 2021 Latest 19z surface analysis shows cold front extending from the central Dakotas to western Nebraska. Surface cold front will track east into the Great Lakes tonight into Thursday. Expect winds to increase behind the surface cold front between 12 to 15z Thursday.
146 PM CST Wed Nov 10 2021 Our strong ridge of high pressure will finally give way to our next weather system tonight. The trailing cold front is stationed just west of the FA at 06Z, with the jet/trof axis driving the front on into/across the region thereafter.
High pressure centered over the Tennessee Valley will gradually build east through Thursday. Winds are expected to become easterly today as high pressure located to our northeast builds eastward through Thursday.
309 PM EST Wed Nov 10 2021 A cold front will move through the region Thursday into Thursday night.
213 PM CST Wed Nov 10 2021 Cold front continues to sweep to the south and east of the forecast area this afternoon. With clear skies and lighter winds overnight temperatures will be much cooler tonight compared to last night with temperatures dropping into the 30's and lower 40's. In the wake of the cold front, temperatures will be 5-15 degrees cooler tomorrow with most locations remaining in the 60's but with plentiful sunshine.
After a brief drop in temperatures today, high pressure will build back over the region resulting warmer afternoon readings by the weekend.
Gusty north-northwesterly winds are expected at all TAF sites this afternoon in the wake of a cold front, with wind speeds decreasing through the afternoon. The corresponding cold front will track across the area this morning into early this afternoon with breezy north winds in its wake. Benign weather along with cooler temperatures is anticipated tonight through Thursday night.
A low pressure system drops into the midwest CONUS tomorrow, bringing some cooler temperatures, and tightening the pressure gradient across southeast Wyoming and the Nebraska panhandle, which will produce some strong, gusty winds across all of southeast Wyoming and the Nebraska panhandle, but especially the northern Nebraska panhandle.
(Today through Thursday afternoon) WV imagery shows an upper-level trough over New Mexico at 08Z this morning, trailing a Pac front that will move through West Texas and Southeast New Mexico late in the morning/early afternoon. The timing of this feature is such that stronger winds rounding the base of the trough will be east of the CWA by peak diurnal mixing this afternoon, but a breezy afternoon is still in store for most of the area, especially west of the Pecos. Afternoon highs will be similar to yesterday's, only w/the thermal ridge shifted slightly east due to the Pac front, and still well- above normal. Tonight/Thursday morning, a cold front will backdoor into the area, ushering lows 5-10F below this morning's, but still above normal throughout.
1008 AM MST Wed Nov 10 2021 The focus in the short term is on the effects of the large trough of lower pressure moving across the area today and as it consolidates into a deep low pressure center as it moves across the Plains states into the upper midwest through the end of the week. The broad latitude upper trough moves across the central High Plains today.
243 PM EST Wed Nov 10 2021 A cold front will move through the area tomorrow bringing rain and windy conditions. It will be dry tonight ahead of the cold front. Temperatures will fall Thursday afternoon west of US 31 such that by 5 PM EST, temperatures will be in the low-40s. Alternatively, due to the relatively late cold frontal passage in northwest Ohio, highs in the 60s are expected. that is, it is on the higher side of forecast guidance and we're forecast to come up just short of criteria.
1020 AM EST Wed Nov 10 2021 Warm and dry high pressure will persist across the region today. Moisture will gradually increase on Thursday ahead of a cold front approaching from the west.
(This evening through Thursday) An upper-level wave and surface frontal system will move east across our forecast area this evening, bringing chances for thunderstorms, some likely severe, and a breezy, cooler night. Once the cold front passes through, breezy north to northwest winds will bring cooler weather, and an end to rain/storm chances.
Late tonight into Thursday, gusty south winds and scattered showers will develop as our current high pressure center moves away and a cold front approaches.
811 AM MST Wed Nov 10 2021 Main area of precipitation shifting into central South Dakota this morning with initial cold front. A deepening low pressure system will move southeastward out of Saskatchewan tonight, reaching central Minnesota on Thursday afternoon. This looks like a good setup for High Wind Warning level winds on the western South Dakota plains due to the tightness of the surface pressure gradient to the west of the low, along with relatively strong cold advection and surface pressure rises.
The focus in the short term is on the effects of the large trough of lower pressure moving across the area today and as it consolidates into a deep low pressure center as it moves across the Plains states into the upper midwest through the end of the week. The broad latitude upper trough moves across the central High Plains today.
(This evening through Thursday) Early this afternoon, a cold front extended near Amarillo, south to near Midland. The front will move through the area this evening, bringing drier and cooler weather tonight into Thursday. Temperatures will be cooler tonight, under clear skies and light winds, with lows in the mid and upper 40s.
1228 PM PST Wed Nov 10 2021 Rounds of morning Tule fog look to persist for at least the next few days as high pressure builds.
Water vapor places developing upper low over southern Saskatchewan with secondary impulse moving into the Central Plains. Tight pressure gradient sets up across the western Dakotas while a secondary trof rotates through the Northern Plains.
Tonight and Thursday An upper low moving from Saskatchewan to Minnesota will intensify as it slowly phases with jet energy lifting northeast from the Southern Plains. A surface cyclone over Eastern Kansas will intensify quickly later tonight as it moves to the north before becoming vertically stacked with the upper low by Thursday night.
Otherwise, the main forecast issue for tomorrow will the next cold front progged to move into SE TX from the north. Latest models appear to be trending a bit slower with the cold front tomorrow.
1108 AM CST Wed Nov 10 2021 Key Messages: 1) Widespread showers and thunderstorms are expected this afternoon and evening as a cold front moves through the region.
Breezy westerly winds will slowly veer to northwesterly winds this afternoon as a cold front continues to move south through the region. Colder air aloft associated with the upper trough will cause mid and upper level atmospheric instability leading to high clouds and possibly some virga over the area this morning. Below freezing temperatures are likely in parts of the southwest Panhandle and northwest South Plains. A broad 1020 mb surface anticyclone will move eastward across the Red River Valley on Thursday with surface winds veering to the south and southwest across the CWA, albeit light in magnitude. The High Plains region will remain situated beneath the southwestern periphery of an amplifying, negatively-tilted trough pivoting over the eastern U.
Closer to home, high pressure over Florida has created fair and stable weather conditions across the Keys and local waters. But, conditions are expected to become more favorable for shower development when surface winds turn to the east tonight when high pressure over the area shifts to the western Atlantic waters.
(Through Tonight) Cap continues to slowly erode this afternoon in association with stronger forcing/low level moisture transport ahead of approaching upper trough.
Afternoon highs will be in the upper 70s to low 80s, with overnight lows in the low 60s except along the coast from Cape Canaveral southward and the Treasure coast, where lows will be in the mid 60s.
Our upper level ridge continues to shift east as a potent upper level trough tracks across the Great Plains this afternoon and evening. An upper closed low pressure system developing over south central Canada will dive southeastward and deepen significantly before reaching Minnesota by late Thursday afternoon, while the upper trough as a whole moves closer to the Mississippi River. The increasing moisture content in the atmosphere will become adequate for isolated to scattered showers, mainly over portions of coastal AL, the western FL panhandle, and into south central Alabama in the vicinity of a boundary that will eventually begin lifting northward as a warm front. With The cold front approaching, this will likely bring along a forced line of convection that will make it into the our western and northern portions of the area Thursday afternoon.
145 PM MST Wed Nov 10 2021 High pressure will increase across the region through the end of the week leading to a warming trend and high temperatures 5 to 10 degrees above normal starting Thursday, lasting through the weekend. Aside from breezy conditions across the Lower Colorado River Valley today and Thursday, winds will remain light, while skies remain clear to mostly clear. For tonight, overnight lows will reach the low to upper 50s across the lower desert. High pressure will build over the Southwest with heights reaching their peak over the weekend.
WV imagery indicates an upper level trough of low pressure moving east through the Western High Plains. Near the surface, a cold front is pushing southeast across southwest Kansas. A weak warm front will spread partly half way across the FA through the early morning hours. The front will be quickly followed by a cold front through the mid to late morning hours. The highest pops will continue across the eastern counties near the Highway 281 corridor. For tonight, high pressure will sink southward across the High Plains.
The area of showers will increase in coverage across the area throughout the day ahead of the approaching cold front from the west.
CD Chattanooga Airport, TN 74 52 68 45 62 / 0 0 80 50 10 Knoxville McGhee Tyson Airport, TN 73 49 69 45 60 / 0 0 70 70 10 Oak Ridge, TN 72 48 67 43 59 / 0 0 80 60 10 Tri Cities Airport, TN 72 47 67 45 58 / 0 0 50 80 10.
1129 AM CST Wed Nov 10 2021 An upper level trough is still on track to move through western and north central Nebraska today, bringing light rain to some areas. The atmosphere is well saturated from 850 through 300 mb, and forecast soundings show there should be decent lift in the low to mid levels coinciding with the trough passage. Although rainfall is possible across the forecast area along the trough, it appears that north central Nebraska will have the greatest rainfall totals since that should be the location of greatest lift and moisture. The trough will exit the area to the east this afternoon and rain will taper off at that time. Winds will be come gusty out of the northwest behind the trough. A deep closed low will move south from Saskatchewan into the upper Midwest during the day.
A weak trough of low pressure is moving east of Arizona today after bringing a few clouds to the Four Corners and Chuska Mountains this morning. These winds will weaken and mix to the surface this afternoon as the trough moves east. Daytime temperatures will remain a bit cooler today and tomorrow due to light north to northeast winds.