Aikyam-Lab/Synoptic-Bench huggingface dataset:
316 PM EDT Mon Sep 11 2017 High pressure will keep clear conditions over Central NY and Northeast PA through Tuesday evening. As is typical when our region is affected by strong high pressure close to the autumnal equinox, we will see huge temperature swings between day and night and deep valley fog during the early morning. High pressure will yield a picture-perfect sunny day. Ridging, both surface and aloft, is expected to nudge eastward and off the east coast during the mid-week period. This is expected to allow an upper-level trough (the remnants of Irma) to move into the mid-Atlantic states.
148 PM EDT Mon Sep 11 2017 Aviation/Hydro High pressure will continue to provide sunny and pleasant weather today and Tuesday, with warmer high temperatures in the mid to upper 70s.
407 PM EDT Mon Sep 11 2017 High pressure continues to dominate the weather over the North Country with dry and warmer conditions through most of the week. High pressure at the surface along with ridging aloft will lead to another night with cool temperatures, calm winds, and patchy fog. Expect mostly clear conditions after fog/low stratus in the morning burns off, along with warmer temperatures reaching into the mid to upper 70s in the broader valleys. Tuesday night will still be under the influence of surface ridging while the upper ridge weakens.
Weather remains very quiet over South Central Texas with an upper ridge over the desert southwest and Irma moving into the southeast United States. Winds will be from the north on Tuesday but that will likely be the last day as lee side troughing will bring back the southerly flow mid week.
126 PM EDT Mon Sep 11 2017 High pressure will keep clear conditions over Central NY and Northeast PA through Tuesday evening. As is typical when our region is affected by strong high pressure close to the autumnal equinox, we will see huge temperature swings between day and night and deep valley fog during the early morning. High pressure will yield a picture-perfect sunny day.
104 PM EDT Mon Sep 11 2017 A large area of high pressure centered over the Upper Great Lakes will maintain control of our local weather into Tuesday.
245 PM EDT Mon Sep 11 2017 High pressure over New York will move into New England and then offshore Tuesday. The high overcast will be the dominant sky condition tonight so no threat of rain. This will make lows several degrees warmer than last night - lows in the 50s west of I-95. The combination of high pressure off the FL coast and low pressure over TN will put the Mid Atlantic in warm moist flow.
301 PM EDT Mon Sep 11 2017 High pressure will remain across the region into Tuesday. High pressure will return for the weekend. High pressure should keep conditions dry thru tonight while high clouds from Irma spread north across the area.
1241 PM CDT Mon Sep 11 2017 The quiet weather continues as mid-level ridging dominates the pattern and along with limited low and mid level moisture will result in another dry forecast through the entire work week.
High pressure over the Great Lakes will has expanded west enough for winds to be light and variable over most of our CWA. Temperatures are again in the mid 70s to near 80 as of 2 PM Models are in agreement that only some thin cirrus may be visible in the southeast from Irma, and over all our weather will continue to be high pressure and persistent diurnal ranges in temperature. ERVIN Southerly flow ahead of a weak cold front will result in a warming trend through the end of the week into the weekend.
Little change seen over the next couple days with upper ridging holding from the desert southwest into Wyoming with warm mid-level temps limiting convection to mainly the higher mtns. This begins flattening the upper ridge over the area and may allow for a little more convective coverage Weds afternoon and evening across mainly southeast Wyoming.
143 PM EDT Mon Sep 11 2017 Mostly dry weather and warming temperatures is expected this week with high pressure continues over the area. The ridge aloft begins to breaks down on Tue but a dry WNW flow aloft continues. Tonight will see potential for fog development again as high pressure continues to provide light to calm winds and clear skies. Min temps expected to be a couple degrees warmer as the ridge axis begins to shift slightly east, with warming aloft. 925mb temps warm a bit more reaching near 18C around 21z so we are looking at the 70s to around 80 in the warmer valleys.
332 PM EDT Mon Sep 11 2017 High pressure will maintain dry weather through tonight. Periodic unsettled weather is expected the rest of the week with slow moving low pressure. High pressure will remain in place through tonight as Irma lifts northwestward toward TN. Outside of some high cirrus from the weakening tropical system, conditions will remain dry, with warming mid-levels supporting slightly warmer high and low temperatures today and tonight. This band will have to overcome a rather dry atmosphere, with forecast soundings suggesting plenty of dry air in the low levels, so PoPs were kept rather low through the day.
Scattered showers/tstms over the mtn areas will continue through the evening hours, with isolated to scattered pcpn over the high valley locations. Showers and thunderstorms will redevelop on Tue, with the best coverage being over and near the higher terrain. High temps will probably be around 5 degrees above average on Tue across the southeast plains, with around to slightly above average temps in the high valley locations. The monsoonal ridge is forecast to break down by mid week and troughing is forecast to take shape over the western conus.
High pressure ridge from MI to MO bringing clear skies and light winds to the dvn cwa. High pressure ridge surface and aloft will extend from the northeast United States to the Corn Belt in the short term. Highs will be in the mid to upper 70s with lows in the lower 50s. Area highs in the upper 70s to around 80F and lows in the lower 50s.
Highs on Tuesday range from the mid 70s inland to the lower 80s over the coastal counties.
The high clouds will continue to spread the area from the southeast and move northwest overnight over the region.
1039 AM PDT Mon Sep 11 2017 Warmer weather will return today and tomorrow high pressure lingers over the Inland Northwest.
249 PM CDT Mon Sep 11 2017 Little change to forecast trends in the short term as area remains south of stronger upper flow and between impressive looking trough coming into the western CONUS and departing remnants of Irma.
/issued 406 AM CDT Mon Sep 11 2017/ (Today and Tonight) Not much change to the forecast for the next 24 hours as an upper level ridge remains centered near the Four Corners area, and Irma makes progress northward into Georgia.
A few isolated gusts of 35-40 MPH will be possible across southern KY tonight, especially in the heavier rain showers that may mix down some of the higher momentum air aloft. Low temperatures are expected to drop into the lower 60s.
510 PM EDT Mon Sep 11 2017 High pressure centered over the eastern Great Lakes will shift out into the Atlantic through the short term as the remnants of Irma track into the Tennessee Valley. Exception will be the highest terrain to our southeast along the Kentucky-Virginia state line. Some stronger winds will be possible along the ridge tops in these areas but expectations are that the lower and relatively sheltered valley locations will be spared.
At the surface, ridging extends from the Great Lakes into eastern KS and down into TX. Upper pattern is expected to remain fairly unchanged into Wed with overall ridging remaining over the Rockies with remnants of Irma moving into the Tennessee/southern Ohio Valley. Both ECMWF and GFS agree on sharp trough over the western CONUS to end the week with this feature lifting northeast through the weekend. However, for Sun into Mon a cold front will start to slide south and will bring slightly better shower and storm chances.
Warmer than Normal Temps thru Fri then Turning Sharply Cooler Potentially Hazards Weather: None. the only ones of immediate interest to the fcst here are the ridge/subtropical high over the Rockies and a shear-induced barotropic vort max over WY. That means the longwave trof currently over the NE Pac will move into the Wrn USA Wed. forcing the trof to dig and a low to form in vicinity of ID/UT/NV by Fri. This will draw the cut-off low (currently off CA) northward and weaken it. This low is fcst to lift NE into the Canadian Prairies this weekend. The Wrn ridge moves in Thu. Temps will be warmer than normal.
The low pressure center is expected to track across GA and AL towards west TN through Tuesday. Winds will continue to increase through the rest of the afternoon and evening hours, topping out with gusts over 50 mph across the highest terrain. Already seeing some gusts over 40mph in the higher terrain of NE GA/SW NC, so will have to continue to monitor observations throughout the evening to ensure gusts stay below high wind warning criteria at the highest elevations. Latest QPF forecast from WPC indicates a period of heavier rain across the lower Cumberland Plateau from 00-06Z, so have increased storm total rainfall amounts slightly across this area to just around 3" in Marion County.
642 PM EDT Mon Sep 11 2017 High pressure will maintain dry weather through tonight. Periodic unsettled weather is expected the rest of the week with slow moving low pressure. High pressure will remain in place through tonight as Irma lifts northwestward toward TN. Outside of some high cirrus from the weakening tropical system, conditions will remain dry, with warming mid-levels supporting slightly warmer high and low temperatures today and tonight. This band will have to overcome a rather dry atmosphere, with forecast soundings suggesting plenty of dry air in the low levels, so PoPs were kept rather low through the day.
346 PM EDT Mon Sep 11 2017 High pressure continues to dominate the weather over the North Country with dry and warmer conditions through most of the week. High pressure at the surface along with ridging aloft will lead to another night with cool temperatures, calm winds, and patchy fog. Expect mostly clear conditions after fog/low stratus in the morning burns off, along with warmer temperatures reaching into the mid to upper 70s in the broader valleys. Tuesday night will still be under the influence of surface ridging while the upper ridge weakens.
Today, the Rocky Mountain and High Plains ridge of high pressure is rebuilding and expanding through the region - bringing warmer temperatures and drier humidity to most locations. Temperatures tomorrow should be very similar to today, ahead of an approaching large-scale low pressure trough, set to change the seasons through the latter part of the week. Cooler temperatures are a certainty, but how much rainfall occurs continues to be a question.
The mid level ridge axis will remain positioned from northwest Mexico into the central Rockies through the period.
306 PM CDT Mon Sep 11 2017 Tropical storm Irma is moving into the southeast US today and is causing the upper level ridge to become suppressed across the four corners region.
130 PM EDT Mon Sep 11 2017 High pressure will keep clear conditions over Central NY and Northeast PA through Tuesday evening. As is typical when our region is affected by strong high pressure close to the autumnal equinox, we will see huge temperature swings between day and night and deep valley fog during the early morning. High pressure will yield a picture-perfect sunny day.
/ISSUED 327 AM CDT Mon Sep 11 2017/ High pressure over OK extending down into TX Hill Country with north to northeasterly flow across SETX this morning.
High pressure is building over the region, with a relatively dry atmospheric column in place. High pressure is beginning to build back into the region today. The high will keep the drier air in place, so no cloud cover is forecast. Winds tonight go L/V as the high drifts into the northwest Gulf. Highs will again reach right around normal in the low to mid 90s, with lows tonight again falling about 5 degrees below average.
Irma's remains will then become fully merged with a broad upper-level low pressure system over Mississippi and mainly be a source for light to moderate rainfall across the Lower Mississippi Valley and Ohio River Valley. If these cooler temperatures materialize tomorrow, without much heating before or after rain falls, then several coolest maximum temperature records could be broken tomorrow. In fact average *low* temperatures for this time of year are near 65 degrees, and high temperatures could stay cooler than that tomorrow. Conditions closer to the Highway 84 corridor should stay warmer and less rainy, but some light rain will still be possible through those areas.
SHORT TERM (Tonight through Tuesday Night): High pressure building over the area is now in control. Winds will be light tonight under clear skies and with low temps ranging from the mid 60s to the lower 70s, just a skosh below normal. A residual elongated mid level trough will lie over the area in the short term, basically an extension of the low associated with Irma, but high pressure will control the surface and upstream ridging will slowly build east over Texas. A few mid to upper clouds may movie over from the north Tuesday night, as a short wave moves south through the main mid level trough.
Slightly cooler temperatures are forecast today, with much cooler weather expected by midweek and beyond. An upper low southwest of SLO County continues to slowly progress to the north while pulling in moisture from the southeast. The low will progress northeastward on Tuesday helping leading to the convection being focused away from the coast and to the north. This could easily be adjusted if the low does not move as forecast, so anyone with plans tomorrow should keep a close eye on the forecast. Temperatures will be cooler tomorrow with the low closer plus 850 MB values down by around 2 C.
An upper ridge will build east over the area late this week, resulting in hot days and mild nights through the weekend.
They once again have stayed fairly anchored to the high terrain with very little drift due to light steering winds aloft. The high pressure ridge will shift westward back over the area Tuesday as the tropical remnants of Irma move through the southeastern states towards the Tennessee and Mississippi Valleys. Overall this should result in a downturn in storm activity on Tuesday compared to today, but enough moisture will still be recycled under the high to keep the threat of afternoon storms in the forecast mainly over high terrain.
Our far NW counties could dip into the lower 50s due to the delay in cloud arrival. Temperatures will top out in the lower 70s S of I-70, with some upper 70s possible farther to the NW, or west of I-55.
Ridging at all levels will continue to dominate through much of the week as temperatures remain above normal. Ridging and drier air moving into the west behind the boundary will result in the coolest min temps there tonight under clear skies. Tuesday, with plenty of sunshine and 850 mb temps to around 15C will side toward the higher end of model guidance for max temps. Expect inland readings to climb into the upper 70s and lower 80s while temps near the shoreline areas and will be mainly in the lower to mid 70s. Towards the end of the week and through the weekend, zonal flow aloft will begin to transition to southwest flow ahead of developing longwave troughing across the western CONUS.
Otherwise mostly sunny skies were observed over the state while surface observations showed northerly winds with temperatures in the upper 70s to lower 80s and dew points at unseasonably low levels in the lower 50s.
With light north to northwest winds and clear skies, temperatures tonight across the region will vary from the lower 50s in some rural areas to the mid 60s in urbanized areas. Irma's westward thrust will steadily deamplify the blocking ridge that has dominated the Intermountain West. Irma will eventually join the mid-latitude westerlies, and the residual ridge axis will shift east across Texas late in the week.
As it does so, a warm front will lift northward into central/eastern NC tonight. Moisture associated with Irma will largely remain south of the local area through tonight, closer to the warm frontal boundary.
Current water vapor imagery depicts a mid to upper level ridge of high pressure centered over the Four Corners and the moisture associated with Tropical Storm Irma spreading across the southeastern U. Dry northerly flow aloft between the aforementioned ridge and Irma will continue across west central Texas on Tuesday. Afternoon highs will be a few degrees warmer on Tuesday. (Tuesday night through Monday) An upper level ridge across northern Mexico will extend into West Central Texas for the middle to latter part of the work week. An 850 mb thermal ridge will build into the area, resulting in unseasonably hot Temperatures.
1227 PM CDT Mon Sep 11 2017 Latest water vapor satellite imagery shows upper level ridge over the southern Rocky Mountains/Great Lakes Region. With upper level ridge over the forecast area mostly clear skies were seen per latest infrared satellite imagery. Subsidence under the ridge will continue to allow for dry weather and mostly sunny skies across the forecast area.
1250 PM CDT Mon Sep 11 2017 Area will remain dry and warm over the next several days as large ridge of high pressure over the western US pushes east through the week. This ridge will keep remnants of Irma to our east across the Ohio river valley while a deepening trough moves across the western US. The above mentioned upper ridge axis will shift east of the area late in the week allowing southwesterly mid-upper level flow to persist into the weekend.
Confidence is on the low-end with respect to occurrence. Western NEB continues to be influenced by an upper level ridge that will be positioned across Sonora to the Four Corners into the Central Plains. Highs are forecast largely in the lower to mid 90s.
Should start to see the lower cu and AC cigs move into Scntrl AR/Ncntrl LA Tuesday afternoon, as areas of -SHRA develop and wrap around the broad circulation center.
As the remnants of what used to be Irma make their way north they will continue to transition into a broad and much weaker low pressure system that will remain quasi-stationary over the Mississippi and Ohio River Valleys. Between these two cut off lows will be a ridge of high pressure situated over the central part of the US.
Tuesday winds will continue to turn to the southwest and mix down warmer air aloft from near 850mb. Readings will be a bit cooler to the southeast with low to mid 80s across the lakes and trees of NW and WCntl MN. Return flow and ridge amplification will result in warmer temperatures, with some areas reach the 90 degree mark.
253 PM EDT Mon Sep 11 2017 A large area of high pressure centered over the Upper Great Lakes will maintain control of our local weather into Tuesday. The high pressure system will shift eastward as tropical storm Irma continues its trek into the Tennessee valley. Mins warmer then last night, due to the expected slower arrival of thicker clouds and any rain on Tuesday and increased Max temps Tuesday.
As a result, went about 4 degrees above guidance for tonight's lows to get them into the lower 60s at the cooler locations, though the area has been undergoing dynamic cold air advection aloft with lowering of thicknesses on thermal wind.
Cold front is about half way thru the fcst area at 08z.
252 PM MDT Mon Sep 11 2017 Main forecast issue continues to be the low chance of thunderstorms in the western portion of the area for tonight. So again went toward the cooler guidance. High temperatures look to be near to maybe slightly cooler. Based on recent trends and guidance will go close to a touch cooler than todays temperatures. Ridging/no lift will make for a dry and sunny day.
322 PM EDT Mon Sep 11 2017 High pressure over the eastern Great Lakes today, will bring fair and mild weather through Tuesday as it moves across our area towards the mid Atlantic coast.
As of 08z Monday morning, the pesky upper low across the northern Plains has been absorbed by a northern stream trough across Manitoba. In association with the upper level trough, a cold front has pushed into the Dakotas. Mid level ridge has expanded across much of the central Plains, placing the forecast area in northernly mid level flow.
Temperatures have indeed risen into the lower 70s across much of nrn Michigan. The DPVA to our north departs by early this evening, while the cold front decays while sliding in over nrn Michigan around daybreak Tuesday. Readings likely falling into the upper 40s and lower 50s in the NW CWA, and the lower to middle 40s across the SE where those winds above the sfc won't be as strong for slight mixing.
1110 AM MDT Mon Sep 11 2017 High pressure aloft will stay in place over the region with Irma tracking up the east coast and a closed low remaining off of the coast of California Monday and Tuesday.
Upper level ridging is now centered near the 4-corners with Irma having moved into the mainland Southeast.
1155 AM MDT Mon Sep 11 2017 Strong and persistent mid/upper level ridging will persist over the Rockies through the period. A minor disturbance seen on GOES-16 WV imagery early this morning over southern WY and northern CO will meander slowly east and southeast today as it is trapped in the larger ridge aloft. With anemic flow at all levels of the atmosphere, convection should be dictated by terrain features so kept the best chances over the mountains and along the Cheyenne Ridge.
548 PM CDT Mon Sep 11 2017 Little change to forecast trends in the short term as area remains south of stronger upper flow and between impressive looking trough coming into the western CONUS and departing remnants of Irma.
1256 PM CDT Mon Sep 11 2017 High pressure is slowly losing some grip on central Illinois as Irma pushes out of Florida and toward western Tennessee. Not much of a shift in the forecast overall, as high pressure slowly loses ground to the dynamics of Hurricane Irma pushing into the southeastern United States. Clouds will help inhibit the cool down as overnight lows will be a few degrees warmer tonight.
There are numerous convective elements showing up on radar this morning, however a quick check outside and while interrogating KPIR/KABR ceilings/BUFKIT soundings, this must be all above 12-15kft and at or above the freezing level, and as such anticipate much if not all is evaporating before reaching the surface. A wind shift is occurring across the area as well, associated with approach of high pressure that will move across North Dakota today. Tuesday will see a return of southerly low level flow as the high moves east.
Wind gusts up to 50-55 mph will be possible, especially in the higher elevations of east Central Alabama, through this evening.
426 PM EDT Mon Sep 11 2017 A large area of high pressure centered over the Upper Great Lakes will maintain control of our local weather into Tuesday. The high pressure system will shift eastward as tropical storm Irma continues its trek into the Tennessee valley. Mins warmer then last night, due to the expected slower arrival of thicker clouds and any rain on Tuesday and increased Max temps Tuesday.
Tuesday will be another notch warmer than today with light easterly winds.
236 PM PDT Mon Sep 11 2017 Warm weather will continue into Tuesday as high pressure lingers over the Inland Northwest.
Highs still looking to get into the lower 70s most areas. High Pressure and Clouds. Pattern Forecast: Main focal point across the CONUS at the start of the period continues to be the remnants of hurricane Irma centered across the lower Mississippi valley. Primary Forecast Concerns/Challenges: Little in the way of sensible weather across northern Michigan this week with high pressure overhead.