Aikyam-Lab/Synoptic-Bench huggingface dataset:
350 AM EDT FRI JUN 17 2016 Clouds and a few sprinkles will linger in a post cold front environment early this morning. These clouds will give way to increasing sunshine this afternoon, with cooler and drier air filtering in as high pressure builds into the region.
As high pressure builds across the Great Lakes Friday, skies will clear. Warmer conditions are in store for Friday and Saturday with low humidity levels.
327 AM CDT FRI JUN 17 2016 Another hot day is in store for the forecast area today as a strong upper ridge extending across the mid section of the country maintains its grip across the region. A change in the recent hot weather pattern is on tap for the weekend as a deepening upper trough over the eastern conus pushes a weak cold front into the region on Saturday while the upper ridge centered to our west retrogrades somewhat and becomes centered over the Four Corners region.
639 AM EDT FRI JUN 17 2016 High pressure will build from northern Ontario and into the Great Lakes through the weekend with abundant sunshine and temperatures warming to above average.
1045 PM MDT Wed Nov 2 2016 Updated Aviation Westerly downslope winds will remain breezy along the Rocky Mountain Front this evening and gradually taper by tomorrow morning as a ridge of high pressure strengthens. Winds will decrease by early Thursday morning as a ridge of high pressure builds over the area.
a cold front was pushing into northwest Missouri with north winds. drier surface dewpoints and cooler temperatures working into the area. dewpoints were in the lower 40s near the South Dakota border while dewpoints were in the upper 50s toward Falls City. Much cooler air in the 30s and 40s were noted across a second cold front across North Dakota. Until the h7 trough clears the area. Although surface winds will slacken as high pressure builds in, any fog would be patchy. Ridging builds over the Plains and Rockies while the storm system over the southwest U.
1100 PM MDT Wed Nov 2 2016 Weak high pressure builds into the area today and, apart from a few showers and storms over the southern mountains, dry weather persists.
Showers and thunderstorms have increased along cold front in last 1-2 hours and will impact northeast OK TAF sites through 08-09z. Scattered showers and thunderstorms will continue to develop across mainly northeast OK over the next few hours ahead of approaching cold front. Precipitation will gradually shift southeast overnight as cold front moves through but likely will decrease in coverage. /Issued 338 PM CDT Wed Nov 2 2016/ Afternoon water vapor imagery shows upper low across the southwest in the process of becoming a cutoff low. Surface cold front has moved little so far today. Short term guidance continues to show cold front arriving into NE OK early this evening accompanied by a scattered to broken line of showers/tstms.
A rainy cold front will move through Western Washington tonight.
Upper low pressure is visible in satellite pictures spinning over far southern Arizona and northern Mexico this afternoon. The low is progged to sit there through most of the day Thursday, showing little or no movement. On Thursday, with the upper low remaining in about the same position, little change in the forecast is expected. The southern mountain areas will see a chance of afternoon rain and snow showers with the lower elevations seeing little or no precipitation.
848 PM PDT Wed Nov 2 2016 Weak high pressure will linger and confine the most substantial showers to the vicinity of the North Cascades and near the British Columbia border tonight into early Thursday.
748 PM EDT Wed Nov 2 2016 A cold front stretching across southern Lower Michigan and Lake Erie will drift southeast through Thursday as low pressure moves across the lower Great Lakes along the front.
/Issued 421 PM CDT Wed Nov 2 2016/ The advertised cold front has already made good progress across the Panhandles and is currently situation from Happy to Lipscomb. Tomorrow we should be mostly precip free as the upper low moves further south over southern Arizona/northern Mexico.
After another day of record breaking heat, we will finally see a change in the pattern and some cooler temperatures on the way. A trough and associated cold front will swing through the area on Thursday. Temperatures tomorrow will be tricky and will depend on how fast the precip moves in and the cold front moves through.
811 PM EDT Wed Nov 2 2016 A cold front will bring showers and isolated thunderstorms through the region overnight.
Further north, a cold front was located just north of our far northern counties and will slide slowly south tonight as well. Latest surface map showing the main low pressure center further west toward Kansas, with a secondary low starting to organize near Quincy. The warm front continues to arc just north of our forecast area roughly along the I-80 corridor, with the trailing cold front southwest through Kansas City. Clusters of thunderstorms have tracked across the northern and northeast CWA so far, with more widespread convection just ahead of the cold front and moving into west central Illinois, where CAPE's have increased to around 500-1000 J/kg. Clearing trend will push from northwest-southeast on Thursday as high pressure starts to build east from the Plains. Temperatures will be cooler than today, but still well above seasonal normals.
859 PM EDT Wed Nov 2 2016 Showers will increase later tonight into Thursday as a cold front crosses the upper Ohio Valley. Continued mild tonight ahead of an approaching cold front and mid-level trough later tonight. Showers will be on the increase with likely to categorical POPs spreading north to south overnight into midday Thursday, then tapering off in the afternoon as the cold front and trough exit east of the ridges. Temperatures will remain around 15 to 20 degrees above average tonight, with cooler but still above average temperatures Thursday behind the front.
Low temperatures tonight will be in the low to upper 30s with high temperatures Thursday in the mid 60s to low 70s.
Upper level trough extending into northeast Iowa continues to focus some lift and light showers over north central and this activity should diminish by late afternoon. main upper level trough/sfc feature and warm front the focus for more organized showers and thunderstorms at the moment. This will allow for slightly warmer temperatures in the southeast. /Thursday night through Wednesday/ Very quiet benign mid/long range with large upper ridging in place across much of the US throughout much of forecast period.
756 PM EDT Wed Nov 2 2016 A cold front crosses Thursday.
/issued 320 PM CDT Wed Nov 2 2016/ The Southeast CONUS ridge will break down over the next 24 hours as a strong trough dives southeast across the Great Lakes. This has kept temperatures a bit cooler across the western half of the CWA, but locations in the east are currently near record values. Isolated showers, and a few thunderstorms, are expected to develop along and ahead of a cold front that will traverse the Mid-South during the day. Dry and cooler weather is anticipated over the weekend.
Rest of the forecast on track with lows ranging from the 40s west to below freezing in a few locations east.
Deep layering ridging over the area this evening and widely scattered showers over the marine waters occasionally moving onto the east coast before dissipating shortly thereafter. Ridge aloft begins to be displaced southward as trof aloft begins to deepen toward the eastern U.
A dissipating cold front will cross tonight and spread light rain from west to east across the region.
A ridge of high pressure remains stretched from the southeast states across the northern gulf coast this afternoon. Around the ridge, a moist southeast flow off the gulf continues. Tonight through Thursday the upper level ridge over the area will weaken as a trough digs into the eastern sections of the country. This will swing a cold front through the region.
700 PM CDT Wed Nov 2 2016 /00Z TAFS/ A cold front will move slowly south across the terminals overnight. At the surface, a cold front is located from eastern NM, northeast into the TX panhandle. The upper level low in the AZ area will move very little over the next 24 hours. As the cold front makes slow progress southward tonight, scattered showers and thunderstorms along the boundary will develop. Temperatures will be cooler on Thursday behind the front. (Thursday night through Wednesday) A large upper level low will be located over the northern Mexican state of Sonora, with a weak front in the vicinity of West Central Texas.
However, with less gradients/winds tonight and weak ridging in place may not get as much low level moisture advection and stratus as this morning. A cold front will move through late Thursday, bringing only a slight chance of showers across the north.
836 PM EDT Wed Nov 2 2016 High pressure continues across the region with slowly increasing moisture and a slowly relaxing pressure gradient.
Cool high pressure will bring tranquil weather for the weekend. Surface cold front will be departing the area early Thursday night.
829 PM EDT Wed Nov 2 2016 Showers will increase later tonight into Thursday as a cold front crosses the upper Ohio Valley. Continued mild tonight ahead of an approaching cold front and mid-level trough later tonight. Showers will be on the increase with likely to categorical POPs spreading north to south overnight into midday Thursday, then tapering off in the afternoon as the cold front and trough exit east of the ridges. Temperatures will remain around 15 to 20 degrees above average tonight, with cooler but still above average temperatures Thursday behind the front.
721 PM EDT Wed Nov 2 2016 The region is ahead of an approaching cold front tonight.
A cold front/northerly wind shift will progress from northwest to southeast this evening. Currently, it's fairly uncomfortable for early November, 02/20z surface observations reveal dew points well into the mid to upper 60s along with temperatures in the low 80s ahead of the surface boundary that continues to slowly push eastward off the panhandles.
1217 AM EDT Thu Nov 3 2016 A crossing cold front will generate showers today and will usher in more seasonable temperatures.
Mild weather will continue under either high pressure or southwesterly flow aloft.
Despite these clouds, temperatures have been able to climb into the mid and upper 50s north of Interstate 94 and into the lower and mid 60s for the remainder of the area. Further west another short wave trough was producing a few sprinkles across southwest Minnesota. Meanwhile the models are struggling on whether any rain can reach the ground with the short wave trough moving out of southwest Minnesota.
The main upper level trough that will ultimately bring a surface cold front, and a change to somewhat cooler weather, was still quite a ways north and west this afternoon. That trough and associated front will move quickly through central Alabama late Thursday into Thursday night.
525 PM MDT Wed Nov 2 2016 Upper flow over the CWA is northwesterly, with a weak wave pushing through the eastern Dakotas, ridging over the western CONUS, and a closed low over AZ. Upper level ridge will build over the western and central CONUS tonight into Thursday. Strong upper ridging will continue across the region through the end of the week.
741 PM EDT Wed Nov 2 2016 A cold front will move through the area late tonight into Thursday, bringing showers and possibly a thunderstorm, along with a transition to cooler conditions.
In the low levels of the atmosphere, a large area of high pressure will be centered over the southeastern United States overnight. In the mid levels of the atmosphere, an area of high pressure will be located over the northwest Gulf of Mexico tonight. In the upper levels of the atmosphere, a ridge of high pressure will be centered over the central Gulf of Mexico overnight.
1045 PM MDT Wed Nov 2 2016 Westerly downslope winds will remain breezy along the Rocky Mountain Front this evening and gradually taper by tomorrow morning as a ridge of high pressure strengthens. Winds will decrease by early Thursday morning as a ridge of high pressure builds over the area.
High pressure will persist through at least the weekend, so dry conditions are expected.
742 PM EDT Wed Nov 2 2016 A cold front will stall over southern New England this evening. Weak low pressure will form along the front overnight and will move east through New England on Thursday. Low pressure will move out to sea Thursday night as high pressure builds in from the west.
704 PM CDT Wed Nov 2 2016 An initially stationary front near the MO/IA border will sink southward as a cold front tonight accompanied by SHRA/TSRA. High pressure builds into the plains behind the front tonight and tomorrow, but the post-frontal air mass is not particularly chilly. Even though daytime highs on Thursday will be around 10 degrees cooler than today, it will still be 10-15 degrees above average.
Chattanooga Airport, TN 59 82 55 72 / 0 20 40 0 Knoxville McGhee Tyson Airport, TN 58 79 52 66 / 0 20 50 0 Oak Ridge, TN 58 80 51 66 / 0 20 50 0 Tri Cities Airport, TN 51 77 47 62 / 0 30 60 0.
The clouds and cooler temperatures behind the front will likely keep temperatures in the 60s on Thursday for all but far south central MO. Cooler, but not cold weather is then expected for the remainder of the week into the weekend with high pressure and a drier/cooler air mass building into the region.
As high pressure moves in the lightest winds will likely around the James Valley into the Missouri River Valley and should allow temperatures to drop back into the mid and upper 30s overnight. The milder readings will be across parts of southwest Minnesota where winds should stay up around 5 to 10 mph, keeping lows in the lower 40s. High pressure will shift off to the east leaving behind a light westerly wind and lots of sunshine on Thursday. As we move into late week, a very large upper ridge of high pressure will migrate slowly eastward, while a closed upper low remains nearly stationary, cutoff from the main flow, near the four corners region.
Short term concerns will be with the possibility of fog reforming again in the morning hours with patchy freezing fog for the mountain valleys.
The main consequence of the front has been temperatures, where lower 40s at Rolla has been the high so far. a warm front extended from a low over southern Alberta eastward across southern Saskatchewan along the ND/Canada border and into northeastern ND. with temperatures in the 60s west - to the 40s in the Turtle Mountains just north of the warm front. The warm front is progged to continue lifting northward tonight and light southwest winds should be the rule for the overnight hours. On Thursday the building upper level ridge expands eastward into the front range and northern plains. It is important to note that there will be some minimum relative humidity values in the low to mid 20 percent range in the extreme southwest on Thursday.
However, with less gradients/winds tonight and weak ridging in place may not get as much low level moisture advection and stratus as this morning. Expect the low level southeast flow to again encourage low stratus and patchy fog development at ANB/TOI with potential impacts at MGM/ASN. A cold front will move through late Thursday, bringing only a slight chance of showers across the north.
Quiet weather will continue overnight with lows in the low to mid 60s. The cold front remains well northwest of the area but a boundary/maybe pre-frontal trough was located along the river. For tonight, kept the area in the lower 60s. The boundary starts to move southeastward around the late afternoon, so thinking highs in the lower to mid 80s was still good.
1257 AM EDT Thu Nov 3 2016 High pressure will cross the region overnight.
Development of isold to sct tstms will be possible around sunrise Thursday, as a cold front begins to move through the region. VFR conditions look to return by late afternoon to most sites in the wake of the cold front.
724 PM EDT Wed Nov 2 2016 High pressure over the region will weaken Thursday as a cold front approaches the area. The cold front will move through the forecast area Thursday night. Cooler weather will occur behind the front over the weekend. Thin high level clouds will increase this evening as the upper level ridge begins to flatten and slip to the southwest. The models indicate considerable upper level moisture moving into the area from the west north of a flattening upper ridge. WV loop this afternoon shows the ridge of high pressure across the southeast. The ridging over the area will continue to weaken Thursday ahead of the approaching cold front.
745 PM EDT Wed Nov 2 2016 A cold front crosses Thursday.
Scattered showers and thunderstorms will continue to develop across mainly northeast OK over the next few hours ahead of approaching cold front. Precipitation will gradually shift southeast overnight as cold front moves through but likely will decrease in coverage. /Issued 338 PM CDT Wed Nov 2 2016/ Afternoon water vapor imagery shows upper low across the southwest in the process of becoming a cutoff low. Surface cold front has moved little so far today. Short term guidance continues to show cold front arriving into NE OK early this evening accompanied by a scattered to broken line of showers/tstms.
Temperatures will drop a little more into the low 30s across the eastern Panhandle and across the river valleys. With clear skies and light winds prevailing, afternoon temperatures should easily rise into the low 70s. An upper ridge will reside across the western Conus Thursday night with a closed low over southern Arizona.
1029 PM EDT Wed Nov 2 2016 The region is ahead of an approaching cold front tonight.
It's another unseasonably warm afternoon across Middle Tennessee under mostly sunny skies and weak ridging aloft. This means we should have a shot at warming into the low 80s once again tomorrow.
1009 PM EDT Wed Nov 2 2016 A cold front stretching across southern Lower Michigan and Lake Erie will drift southeast through Thursday as low pressure moves across the lower Great Lakes along the front.
1039 PM EDT Wed Nov 2 2016 A cold front will move through the area late tonight into Thursday, bringing showers and possibly a thunderstorm, along with a transition to cooler conditions.
Additionally, the center of the ridge of high pressure moves a bit east of our area by morning, making the pattern less ideal. A weak wave passing through the upper level ridge has resulted in fairly widespread high clouds this afternoon across western Montana.
706 PM EDT Wed Nov 2 2016 Expect increasing clouds and gradually lowering VFR cigs through the TAF period as cold front approaches Thursday evening.
823 PM EDT Wed Nov 2 2016 The region is ahead of an approaching cold front tonight.
1201 AM EDT Thu Nov 3 2016 High pressure over the region will weaken Thursday as a cold front approaches the area. The cold front will move through the forecast area Thursday night. Cooler weather will occur behind the front over the weekend. Thin high level clouds will increase as the upper level ridge begins to flatten and slip to the southwest. The models indicate considerable upper level moisture moving into the area from the west north of a flattening upper ridge. The ridging over the area will continue to weaken Thursday ahead of the approaching cold front.
1139 PM EDT Wed Nov 2 2016 The region is ahead of an approaching cold front tonight.
The cold front remains well northwest of the area but a boundary/maybe pre-frontal trough was located along the river. For tonight, kept the area in the lower 60s. The boundary starts to move southeastward around the late afternoon, so thinking highs in the lower to mid 80s was still good.
615 PM CDT WED NOV 2 2016 A cold front will be moving south into the state late on Thu afternoon.
1000 PM MDT Wed Nov 2 2016 Westerly downslope winds will remain breezy along the Rocky Mountain Front this evening and gradually taper by tomorrow morning as a ridge of high pressure strengthens. Moisture riding down the east side of high pressure ridge over WA/OR will keep SCT/BKN mid-level clouds over local TAF sites until later tonight. As ridge axis moves east tomorrow, moisture will be pushed into eastern MT/Dakotas, resulting in mix of clear skies and SCT high clouds.
1038 PM EDT Wed Nov 2 2016 High pressure will persist over the region through Thursday.
1242 AM EDT Thu Nov 3 2016 Aviation An area of low pressure will slide by just south of the state this evening.
High pressure aloft will maintain dry conditions and seasonal temperatures across Utah through Thursday.
1140 PM CDT Wed Nov 2 2016 An initially stationary front near the MO/IA border will sink southward as a cold front tonight accompanied by SHRA/TSRA. High pressure builds into the plains behind the front tonight and tomorrow, but the post-frontal air mass is not particularly chilly. Even though daytime highs on Thursday will be around 10 degrees cooler than today, it will still be 10-15 degrees above average.
Kept temps similar to what was going, but some areas may be forecasted slightly cooler.
/issued 342 PM EDT Wed Nov 2 2016/ High pressure is holding on today, keeping the east northeasterly flow across the region. A ridge at 500mb also remains in place, which is hampering the showers from developing into anything significant. Over the next or so, the high will retrograde and weaken ahead of an approaching cold front.
735 PM EDT Wed Nov 2 2016 Aviation An area of low pressure will slide by just south of the state this evening.
bringing with it small chances of rain showers before high pressure builds into the region Thursday afternoon. Low temps tonight will cool back into the low to mid 40s.
855 PM CDT WED NOV 2 2016 Lingering showers mainly south of Racine, will end this evening, with dry weather overnight through Thursday as high pressure builds in from the west. May see a few areas of MVFR/IFR fog develop late tonight as the high begins to build in. Best chance will be across the western forecast area under lighter winds toward the center of the high. after some gusts to 20 knots south of Milwaukee this evening, quiet marine conditions are expected through the remainder of the week, as high pressure builds into the region. If skies become fairly clear toward morning, may see some fog develop given lighter winds as high pressure builds in from the west. Clouds will continue to decrease on Thursday as the high moves overhead.
Cooler and drier air continues to filter into the area behind the cold front.
along the bottom of an elongated CONUS length flattened upper trough.
513 AM CST Sat Jan 28 2017 Widespread VFR conditions are expected through the period as high pressure dominates. Upper pattern remains dominated by a large ridge over the west coast with low pressure over the Canadian Maritimes.
High temperatures today in the lower 30s should limit the blowing snow threat marked by 30-45 kt 0.
Both the water vapor and IR imagery indicate that the strong ridge of high pressure continues to shift eastward over the region. Some mid and high clouds are present moving through the top of the ridge, but the most significant weather remains near the surface. The presence of the upper level ridge and strong ridging at the surface has initiated a strongly forced inversion across the valleys of southeast Oregon and southwest Idaho. The combination of the inversion and this low level moisture is leading to widespread stratus and patches of fog for the Baker, Treasure, and Magic valleys. Current atmospheric trends along with model data indicate that the ridge of high pressure will remain in control this weekend.
Cool NW flow will produce below normal temperatures in the low to mid 60s for highs. The low levels will remain very dry so no rain is expected through sunset. As the low levels gradually moisten, a cold rain is still forecast to develop later this evening and overnight, first across the north then spreading to southern sections by early Sunday morning. High pres ridge blanketing the north Gulf Coast will weaken thru by late in the day, which will allow sfc/bndry lyr winds to diminish slightly with seas subsiding to 2-3FT nearshore and 3-4FT offshore.