Aikyam-Lab/Synoptic-Bench huggingface dataset:
1018 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.
(This afternoon through Thursday night) An upper trough passed over the region today and the parent low will move down from Canada tonight into the Northern Plains. As it does an upper ridge off the CA coast will continue to spin. The upper trough pushed a Pacific front through the area today with the wind shifting to the W/NW and becoming gusty during the afternoon. Lows will be cooler tonight and mainly in the 40s with some 50s closer to the Rio Grande.
A warm front will begin to spread precip in eastern Oregon this evening and into southwest Idaho after midnight. MVFR/IFR conditions developing with lowering ceilings and precipitation in southeast Oregon 04z- 06z/Thu and southwest Idaho 06z-09z/Thu ahead of a warm front.
However, a cold front will move through the state tonight with showers and a few thunderstorms.
MinTs should range from the lower 60s north to the upper 60s south/coast. The main forecast issue for the short term looks to be the passage of the cold front tomorrow. As north winds/CAA develops across the region behind the front, drier and cooler weather to prevail tomorrow night. Lows will range from the mid/upper 40s inland to the lower 60s at the coast.
Ensembles are in strong agreement that the upper level ridge that is building just off of the coast will build east over California today into the weekend. Today's temperatures will only be a few degrees warmer than yesterday in most areas due to the cloud cover.
At 333 PM, a trough of low pressure and a surface front were inducing widespread rainfall in eastern Nebraska and western Iowa.
A surface warm front has lifted northward to near the Iowa border, providing an expansive warm sector characterized by dewpoints in the mid 50s to near 60. Initial concern was the potential for QLCS-type structures interacting with the backed surface flow along the warm front, but much of the warm frontal region within our forecast area has been stabilized. In the wake of early afternoon convection, portions of far northeast Kansas into northwest Missouri are unlikely to destabilize much further in advance of an approaching cold front. Elsewhere, marginal instability remains in place ahead of the cold front, currently located from near MHK southward through the Flint Hills.
Satellite imagery shows the southern extension of the upper trough moving east across Oklahoma/north Texas at this time. The upper trough will move east-northeast through the Mississippi River valley by Thursday morning.
Rounds of morning Tule fog look to persist for at least the next few days as high pressure builds.
757 PM CST Wed Nov 10 2021 A strong cold front will move into the area around sunrise tomorrow, bringing widespread rain.
Temperatures warm to above normal levels Thursday and continue to trend warmer into the weekend. Temperatures will begin to trend warmer on Thursday as high pressure currently centered offshore of the Baja Mexico coast gradually builds and pushes slightly NE toward CA and NV. Most locations can expect highs on Thursday in the upper 50s to low 60s which will be 5-8 degrees warmer than the highs today.
More sunshine and warmer temperatures into the weekend.
515 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.
Gusty winds expected at times through Thursday with a light wintry Along with some stray few rain showers or virga for our western and southwestern CWA, a push of upper level low pressure from the Canadian Rockies has introduced widespread gusty W/NW winds up to 50 mph today across the region as expected.
The cooler air will be slow to move in but expect cooler temps by the weekend. 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.
Gusty winds expected at times through Thursday with a light Along with some stray few rain showers or virga for our western and southwestern CWA, a push of upper level low pressure from the Canadian Rockies has introduced widespread gusty W/NW winds up to 50 mph today across the region as expected.
They are likely not producing accumulating snowfall, but temperatures falling below freezing will make for icy roads.
A cold front moving through the area has brought windy and cooler conditions, which will continue into Thursday with temperatures closer to normal.
521 PM CST Wed Nov 10 2021 (Through Tonight) Cap continues to slowly erode this afternoon in association with stronger forcing/low level moisture transport ahead of approaching upper trough.
High pressure will build off the southern California Coast through the rest of this week with warmer high temperatures.
119 PM PST Wed Nov 10 2021 Warmer and dry conditions through the rest of this week.
556 PM CST Wed Nov 10 2021 Cold front continues now well south of the airports with modest northerly flow that will slowly weaken and trend a bit more northeast overnight. /issued 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.
749 PM EST Wed Nov 10 2021 A weak trough moving through the state today has brought some extra cloud cover this evening.
620 PM CST Wed Nov 10 2021 Ongoing showers and storms, some strong to marginally severe may linger across southeast KS early this evening before exiting the forecast area during the evening hours as the mid/upper trough over the Northern Plains pivots into the Great Lakes area.
The surface trof of low pressure was centered just about halfway between the Missouri and James Rivers, slowly working its way eastward. Winds behind the surface trof are switching around to the northwest and increasing to 15 to 30 mph with some higher gusts.
Main impacts will be focused across the higher terrain of the Central Mountains and eastern and southeastern Highlands, especially those vulnerable to upper-level NW flow upslope enhancement. These areas may see 1-3 inches of snow across the higher terrain. By late morning though, confidence is high that snow levels will be well above valley floors and for precip type to be rain with snow focused across the higher terrain.
623 PM CST Wed Nov 10 2021 An upper level trough extends from MT and ND south into TX with an associated cold front extending from eastern ND south through eastern KS and into western TX. Showers and isolated storms can be expected from late evening into Thursday morning as upper level divergence increases ahead of the approaching upper level trough as it takes on a negative tilt. Although there will be strong low level cold air advection behind the cold front late tonight and Thursday with gusty westerly winds, the solar insolation will try to offset this with highs on Thursday cooler than today, but near normal values.
554 PM EST Wed Nov 10 2021 High pressure will move off the coast tonight and Thursday.
408 PM EST Wed Nov 10 2021 High pressure will move off the coast tonight and Thursday.
303 PM CST Wed Nov 10 2021 A strong cold front will move into the area around sunrise tomorrow, bringing widespread rain.
523 PM CST Wed Nov 10 2021 (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.
857 PM EST Wed Nov 10 2021 High pressure will move off the coast tonight and Thursday.
400 PM MST Wed Nov 10 2021 Updated Aviation 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.
The ridge will move overhead this weekend providing dry and milder conditions.
607 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.
511 PM CST Wed Nov 10 2021 A strong cold front will move into the area around sunrise tomorrow, bringing widespread rain.
A broad shield of moisture being advected northward ahead of the trough extends from East Texas across the Midwest and Great Lakes region. This trough axis should continue to pivot eastward through tonight and tomorrow and become absorbed by a more prominent low pressure system over the Midwest in the process of deepening. At the surface, a cold front associated with this system will push east into our forecast area early Thursday morning, with a line of showers and a few thunderstorms expected in advance of the front.
This activity, associated with a cold front, will be primarily centered over CSV at the end of the TAF, with improvements in CIGs following closely behind.
1051 PM CST Wed Nov 10 2021 An upper level trough extends from MT and ND south into TX with an associated cold front extending from eastern ND south through eastern KS and into western TX. Showers and isolated storms can be expected from late evening into Thursday morning as upper level divergence increases ahead of the approaching upper level trough as it takes on a negative tilt. Although there will be strong low level cold air advection behind the cold front late tonight and Thursday with gusty westerly winds, the solar insolation will try to offset this with highs on Thursday cooler than today, but near normal values.
1115 PM CST Wed Nov 10 2021 A trough of low pressure will bring a cold front across the state tonight with showers and thunderstorms.
Winds have gradually become northerly behind the cold front moving through the region.
Northwest breezes will develop at most TAF locations west of the central mountain chain Thursday afternoon while a weak lee trough sets up east of the Sangre de Cristo mountains. A cold front moving through the area has brought windy and cooler conditions, which will continue into Thursday with temperatures closer to normal.
1114 PM CST Wed Nov 10 2021 (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.
301 AM EST Thu Nov 11 2021 A cold front will move through the area today bringing rain and windy conditions. A warm front is currently located just south of the area. Expect another 10 to 15 degrees of warming today before much colder air arrives behind the cold front. Ahead of this cold front, rain will start moving in from the west shortly after sunrise. It will then dry out quickly behind the front this evening, and winds will come down but remain breezy with the upper low just moving into Wisconsin. As mentioned above, much colder air will follow the cold front as the upper low rotates through the Great Lakes.
209 AM CST Thu Nov 11 2021 Strong subsidence aloft will continue to move overhead today as the center of a strong closed low moves from the Northern Plains into the Midwest. Yesterday's cold front will knock down temperatures closer to seasonal averages for today under mostly easterly low level flow.
MVFR/IFR conditions developing overnight with precipitation, lowering ceilings, and reduced visibilities spreading across the area ahead of a warm front.
Steep lapse rates and low melting levels associated with the passing trough will keep the threat of hail going through the evening though expect sizes to be limited by waning instability. Expect some clearing across eastern Oklahoma by daybreak which combined with cold advection should yield low temperatures near targeted forecast in the lower to mid 40s.
1010 PM MST Wed Nov 10 2021 Updated Aviation 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.
A line of rain and a couple TS will move thru ahead of a cold front, moving east of CSV by 01z-02z Fri.
However, upper low will deepen over the northern plains resulting in strong NW winds over our far east.
Gusty southerly winds ahead of a cold front will shift to out of the north in its wake. A broad shield of moisture being advected northward ahead of the trough extends from East Texas across the Midwest and Great Lakes region. This trough axis should continue to pivot eastward through tonight and tomorrow and become absorbed by a more prominent low pressure system over the Midwest in the process of deepening. At the surface, a cold front associated with this system will push east into our forecast area early Thursday morning, with a line of showers and a few thunderstorms expected in advance of the front.
More sunshine and warmer temperatures into the weekend. Quiet weather prevailed across the region this evening with high pressure in control at the surface and aloft. Some of the high- resolution model guidance suggests the possibility of some patchy lower clouds and fog developing later, primarily for inland valley locations. However the signal isn't nearly as strong as last night, and with high pressure/drying conditions would expect much less coverage. Otherwise no real changes to the forecast as high pressure brings us quiet weather and warming temperatures into the weekend.
244 AM CST Thu Nov 11 2021 Deepening low pressure in Wisconsin has a strong cold front entering our far western counties with a band of light to moderate showers along and ahead of the front. Clearing was already taking place in far western IA as subsidence spreads in behind the upper level trough. Today: I will walk out the rain showers from west to east this morning as the cold front makes progress across the cwa. Highs will be in the lower 50s but with the winds it will feel colder. Tonight: Storm system evolves into a stacked closed low across eastern MN/western WI. This will pinwheel moisture around the low and rotate it southeast into our northeast Iowa counties after midnight (along and nw of a Dubuque to Cedar Rapids line). Lows will be in the lower to mid 30s.
A cold front is currently moving into central Arkansas. As this cold front continues to move east this morning through the Mid-South, showers and scattered thunderstorms will spread east across the remainder of the region. Temperatures will be cooler than yesterday with highs in the mid to upper 60s. The cold front will be across east Tennessee this evening so all of the rain should have exited the region by then.
1129 PM CST Wed Nov 10 2021 Ongoing showers and storms, some strong to marginally severe may linger across southeast KS early this evening before exiting the forecast area during the evening hours as the mid/upper trough over the Northern Plains pivots into the Great Lakes area.
(Today and tonight) Cooler temperatures are forecast across West Central Texas today, behind a cold front that pushed through the region early this morning. Much cooler temperatures are forecast overnight, with low temperatures in the low to mid 40s.
1146 PM EST Wed Nov 10 2021 A passing cold front tonight will provide rain showers. The associated surface cold front will swing through the upper midwest, then reach central Ohio this evening. The cold front will move quickly through the area overnight, bringing widespread rain showers.
225 AM CST Thu Nov 11 2021 A cold front has pushed through our area with winds coming out of the northwest and colder air beginning to funnel in.
High clouds will move into the region overnight ahead of a cold front. McD Chattanooga Airport, TN 50 69 44 62 39 / 0 80 60 0 10 Knoxville McGhee Tyson Airport, TN 49 71 44 60 39 / 0 80 80 0 10 Oak Ridge, TN 48 68 42 60 37 / 0 80 70 0 10 Tri Cities Airport, TN 45 69 43 58 36 / 0 70 80 0 10 TN.
/issued 556 PM CST Wed Nov 10 2021/ Cold front continues now well south of the airports with modest northerly flow that will slowly weaken and trend a bit more northeast overnight. /issued 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.
1043 PM CST Wed Nov 10 2021 (06Z TAFS) Cold frontal passage now occurring at southern TAF sites. (00Z TAFS) Cold frontal passage occurring at all TAF sites through the next six hours.
400 AM EST Thu Nov 11 2021 A passing cold front tonight will provide rain showers. The associated surface cold front will swing through the upper midwest, then reach central Ohio this evening. The cold front will move quickly through the area overnight, bringing widespread rain showers.
1105 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.
There are a few locations that are starting to approach the low temp forecast, Pocatello Airport among them. Main impacts will be focused across the higher terrain of the Central Mountains and eastern and southeastern Highlands, especially those vulnerable to upper-level NW flow upslope enhancement. These areas may see 1-3 inches of snow across the higher terrain. By late morning though, confidence is high that snow levels will be well above valley floors and for precip type to be rain with snow focused across the higher terrain.
1120 PM CST Wed Nov 10 2021 A strong cold front will move into the area around sunrise tomorrow, bringing widespread rain.
Winds have gradually become northerly behind the cold front moving through the region. (This afternoon through Thursday night) An upper trough passed over the region today and the parent low will move down from Canada tonight into the Northern Plains. As it does an upper ridge off the CA coast will continue to spin. The upper trough pushed a Pacific front through the area today with the wind shifting to the W/NW and becoming gusty during the afternoon. Lows will be cooler tonight and mainly in the 40s with some 50s closer to the Rio Grande.
(Today) High pressure will build across the region today in wake of the overnight cold front. A fast moving small amplitude wave will quickly sweep across the forecast area tonight helping drive a reinforcing cold front across the area and also a corridor of light showers.
113 AM EST Thu Nov 11 2021 High pressure will move off the coast tonight and Thursday.
338 AM PST Thu Nov 11 2021 High pressure aloft and offshore flow will continue the warming through Friday with well above average high temperatures continuing for inland areas through the weekend.
Key Points: - Windy and cooler today and Friday. An upper-level low was located over southeastern Saskatchewan and northern North Dakota early this morning with a trough extending through the middle of the CONUS.
356 AM CST Thu Nov 11 2021 The cold front has pushed through the region this early morning with some rain lingering across portions of central and north- central Missouri. Highs today will be cooler than previous days and near seasonal normals with highs in the low to mid 50s. Gusty west northwesterly winds will continue throughout the day today as the tight pressure gradient caused by a deep closed low across the Upper Midwest persists. The aforementioned closed low will slowly slide eastward toward the Great Lakes on Friday and will send a reinforcing cold front through the region early Friday morning with cold Arctic air filtering into the region.
The cold front attendant to this low is pushing through the forecast area this morning with widespread showers along the front. Brisk west winds behind the front will usher cooler and drier air into the region this afternoon, clearing skies shortly after the precipitation exits the area. Cold air advection will briefly wane tonight as a thermal ridge builds into the region, resulting in near normal lows beneath clear skies.
A deep closed low is still positioned to slide southeast from Canada into the upper Midwest today. High pressure over the mountain states and the deep low to the east will lead to strong northwesterly winds over Nebraska. Cold air and strong winds will result in wind chill in the low teens to single digits by tomorrow morning, and below freezing wind chill temperatures during the day. There is a possibility for light snowfall tomorrow in parts of north central Nebraska late tonight and into tomorrow morning as the low passes to the northeast. Wrap around moisture around the low may advect into that area, while dry air remains over the rest of the forecast area. Winds will taper off Friday night as the low pressure system moves to the east into the Great Lakes region.
339 AM PST Thu Nov 11 2021 Rounds of morning Tule fog look to persist for at least the next few days as high pressure builds.
551 AM EST Thu Nov 11 2021 A passing cold front tonight will provide rain showers. The associated surface cold front will swing through the upper midwest, then reach central Ohio this evening. The cold front will move quickly through the area overnight, bringing widespread rain showers. A secondary cold front, with much colder air behind it, will push through the region late Friday night.
525 AM CST Thu Nov 11 2021 (Today and tonight) Cooler temperatures are forecast across West Central Texas today, behind a cold front that pushed through the region early this morning. Much cooler temperatures are forecast overnight, with low temperatures in the low to mid 40s.
A cold front with associated showers will reach the TN River by 15Z.
Dry and mild weather conditions will persist through this weekend as high pressure dominates the region.