Aikyam-Lab/Synoptic-Bench huggingface dataset:
430 AM CDT Sun Sep 17 2017 Upper ridging is over south Texas and Louisiana, and the CWA is under southwest flow aloft. Temperatures today are expected to be slightly cooler than yesterday. There is a slight chance of showers and thunderstorms across mainly the higher terrain and southeast New Mexico with good moisture in place. The upper ridge becomes more flattened on Monday as an upper trough moves over the Pacific Northwest.
359 AM CDT Sun Sep 17 2017 SHRA/TSRA will slowly spread across the area today due to an approaching cold front. The cooler temperatures reflect the influence of clouds and precipitation for areas which are closest to the front, while the warmer temperatures reflect the limited cloud cover and warmer air mass ahead of the front.
337 AM EDT Sun Sep 17 2017 High pressure continues to remain in control of the weather over the Ohio Valley this morning. Lows will be a little milder with readings in the low to mid 60s. Clouds will continue to increase on Monday as the frontal boundary pushes in from the northwest and the upper level ridging over the region flattens out. A ridge that has been providing us with dry conditions will continue to be flattened out across the area with some weak disturbances moving through in the mean flow aloft.
Issued by National Weather Service MIAMI FL 143 AM EDT Sun Sep 17 2017 The Upper and Middle Keys had mostly clear skies today while the Lower Keys experienced mostly cloudy skies. The Miami AMX Doppler radar detected a few showers developing southwest of the Lower Keys and moving towards the Straits of Florida and a few more moving into Florida Bay. This will bring drying trend to the area with slightly warmer temperatures over the Keys.
117 AM EDT Sun Sep 17 2017 High pressure centered to the east will continue to extend into the Ohio Valley through tomorrow. A weak cold front will move into northwest Ohio and eastern Indiana on Monday and then stall. A cold front will approach from the west on Sunday night. The ridge will bring a continuation of warm conditions across the CWA, with maxima in the lower to mid 80s on Monday. Models indicate that a weak cold front will push into northwest Ohio/eastern Indiana for Monday, which combined with marginal instability will provide the chance for a few showers and thunderstorms by afternoon. Due to the ridge, the boundary likely stalls out and then becomes more diffuse through the middle of the week.
In the big picture, a warm upper ridge exists over the Great Lakes to Northeast region which is responsible for our highs being about 8-10 degrees above climatology this afternoon. However, embedded within that ridge is a small lost weakening bubble of what was once an upper low. Overall, not a lot different from today, in that it will again be warm and mainly dry with just a little stickiness to the air courtesy of dewpoints in the lower to mid 60s. This period high pressure tries to hang on but gets squeezed. Jose approaches from the southeast while a cold front comes in from the northwest. Showers also possible over the higher terrain.
1228 AM CDT Sun Sep 17 2017 A cold front raced across the local area this morning and has since stalled from eastern Nebraska into portions of central Kansas. Expect this cooler airmass to linger across the region through at least tomorrow. limiting them primarily to the eastern fringes of the local area and closer to the cold front. did trend towards the cooler side of guidance as clouds and any showers from the high plains are not expect to impact much of the local area until close to dawn.
1240 AM CDT Sun Sep 17 2017 High pressure continues across the area this evening. A cold front will move to close to northwest Arkansas Sunday but should stall in northeast Oklahoma. Tonight Through Monday High pressure at the surface, centered well east of the state, continues to provide a moist south/southeasterly flow to the state. Looking west of the state, a cold front extends from roughly the TX/OK panhandles northeastward to Minnesota. As the flow aloft transitions from southwesterly to a bit more westerly with the upper ridge south of the state contracting a bit, the front will drift toward the state in the coming days.
Recent real-time data, PV analysis, computer simulations and forecast model soundings indicate that isolated pops in combination with areas of low clouds/fog will be possible tonight, with the highest potential of low-grade pops favoring portions of Teller, El Paso and Kiowa counties. With that said, will see isolated to scattered showers and storms, best coverage over and the higher terrain, diminishing from west to east through the evening hours, with clearing skies expected through the overnight hours.
359 AM CDT Sun Sep 17 2017 Water vapor loop indicated an upper level trough was located from southern ALTA/SASK border to ND. Trough was rotating to a negative tilt into southern Canada with better than 130M height falls to the north. ALTA/SASK portion of the trough will move east across southern MAN this afternoon. Next upper level trough off the west Canadian coast will approach the forecast area Tue night.
338 AM EDT Sun Sep 17 2017 High pressure centered east of the region will remain in control across the forecast area today. A weakening cold front will push into the area tonight into Monday, becoming rather stationary by Monday night.
Otherwise, VFR conditions with ridging surface and aloft and mid- level cap keeping things conditions dry. Surface ridging will also keep winds less than 10kts through the period.
1037 AM MDT Wed Oct 25 2017 One more dry and warm day expected across the region before the upper level ridge breaks down. Models in good agreement with dragging a few showers along the leading edge of the associated cold front that will shift winds to the northwest and north by midday Thursday.
941 AM CDT Wed Oct 25 2017 The TN Valley will remain on the western periphery of a fairly amplified upper trough, with high pressure at the surface. On Thursday, with the ridge and southerly flow across the region, warmer temps return! Looking at daytime highs in the upper 60s/lower 70s and overnight lows around 50. The ridge is quickly pushed east by a large trough swinging across the Midwest, however you are still able to end the work week with daytime temps in the 70s too.
1045 AM EDT Wed Oct 25 2017 Cold air advection behind departing cold front will lead to below average temperatures today despite full day of sunshine.
/12Z TAF/ High pressure over west Texas will allow for NW winds today and VFR conditions.
1123 AM EDT Wed Oct 25 2017 Currently - The leading edge of a cold front swept through the Florida Keys earlier this morning. In it's wake, cooler drier air is flowing into the Keys, and temperatures are near 80 degrees with dew point temps are falling through the lower 60s. Cloud cover will continue to decrease, although remain more cloudy over the Lower and portions of the Middle Keys. A cold front has moved through Keys waters. Thankfully, with the passage of the cold front this morning, this record is likely to stand another year.
Thursday morning a cold front is expected to push through the Panhandles. This front will cause winds to shift out of the north and keep our temperatures cooler for the majority of the area.
1020 AM CDT Wed Oct 25 2017 Full sun today across the forecast area along with south to southwest surface winds will allow temps to climb to the lower to middle 70s across eastern Oklahoma and west central Arkansas. A little cooler readings in the upper 60s can be expected across northwest Arkansas.
646 AM CDT Wed Oct 25 2017 Main concern for this forecast will be the below freezing temps, initially expected in central KS for Thu night, and areawide by Fri night/Sat morning. Surface flow will have a little more of a westerly component for today, which will lead to good downslope flow and warmer temps for this afternoon. C dropping south by Fri and Fri night, with freezing temps expected to settle over central KS by Thu night and areawide by Fri night/early Sat morning. Still a little bit of uncertainty on how cold, it will actually get, as the ECMWF shows 850H temps a little warmer, with the best radiational cooling, and ridge axis staying a little further to the west (over NW KS). Another dry cold front looks to drop south, in the northerly flow for Mon.
High pressure will slowly weaken through the remainder of the week resulting in a gradual cooling trend, though temperatures will continue to remain above normal. Afternoon highs in the lower and middle 90s will be common for lower elevation communities into the weekend. These warm temperature aloft will be good enough to support mid-90s across most of the lower desert locations, with a few upper 90s across SE CA, which could threaten a few records across South-Central AZ today, under mainly clear skies. All of the global models continue to gradually weaken and retrograde the strong ridging over our region through the entire period as a very strong (100+ kt) northerly jet dives southward from northern/central CA into the central CONUS.
759 AM EDT Wed Oct 25 2017 Cool temperatures and scattered shower chances will continue today under a broad upper low.
Light northerly wind to gradually become S-SW in the afternoon as high pressure slides overhead. High pressure in place will keep rather quiet and dry conditions through the short term. Clear skies will continue to allow for afternoon temperatures to rise into the lower 80s, while dry conditions will allow for afternoon relative humidity percentages to drop into the mid-teens to lower 20s.
1158 AM EDT Wed Oct 25 2017 Cool temperatures and scattered shower chances will continue today under a broad upper low.
A highly amplified pattern exists across North America this morning with a deep trough axis just west of the forecast area. This is a chilly air mass that allowed temps to plunge into the lower to mid 40s across many inland areas for the first time this season. This will be followed by calmer conditions on Thursday as high pressure builds in.
Clouds and a southwesterly wind have kept current temperatures in the lower 40s for much of the aforementioned area.
1011 AM EDT Wed Oct 25 2017 A strong upper level trough will cross the area today providing cool temperatures and some mountain showers.
Otherwise a weak cold front will be moving through the region today into early tonight. Upper level ridge will build back into the region Thursday.
620 AM CDT Wed Oct 25 2017 A weak low pressure system diving southeastward across Minnesota this morning will bring warm temperatures into the CWA. Several locations this morning are reporting temps in the upper 40s to the lower 50s.
Sfc ridging will build over Cntrl TX will shift SE into S TX/Wrn Gulf later this afternoon/evening, resulting in W winds 8-12kts with occasional higher gusts to 17kts over E TX/Wrn LA/SW AR.
946 AM EDT Wed Oct 25 2017 A chance for showers will continue today, as a trough of low pressure remains centered over the Great Lakes. A cold night is in store for the region with frost and freezing temperatures by Thursday morning. High pressure will move into the area late in the week, with a slight increase in temperatures.
850 AM MST Wed Oct 25 2017 High pressure will subside through the remainder of the week resulting in a gradual cooling trend, though temperatures will continue to remain above normal. Afternoon highs in the lower and middle 90s will be common for lower elevation communities into the weekend. Similarly, H7 and H8 temperatures remain near record levels, but certainly a few degree cooler than yesterday. All of the global models continue to gradually weaken and retrograde the strong ridging over our region through the entire period as a very strong (100+ kt) northerly jet dives southward from northern/central CA into the central CONUS.
720 AM EDT Wed Oct 25 2017 Cool temperatures and scattered shower chances will continue today under a broad upper low.
419 AM PDT Wed Oct 25 2017 High pressure aloft is beginning to weaken as are the Santa Ana winds.
948 AM EDT Wed Oct 25 2017 Cold front has pushed south of the area, with cooler and drier air mass spilling into EC FL this morning. Passage of a strong mid level trough today will veer these winds NW-NNW and scour out the lingering cloudiness. Skies will become mostly sunny with highs topping out in the low-mid 70s. Poor to hazardous small craft boating conditions today into tonight as cold air advection pours southward across the waters behind a fairly strong cold front. A big change in store today behind the season's first strong cold front as much drier/cooler air filters down the peninsula.
Weak cold front and upper trough to our northwest will bring isolated rain showers to northern-most mountains in our CWA tonight. Upper ridge will develop strongly again along the coast Thursday. Higher Idaho mountains will be cooler Thursday under northerly flow aloft. High pressure aloft will weaken today as a system over British Columbia moves southeast into Montana and the upper Midwest. Rain showers are expected across the West Central Mountains as the cold front passes to the east, with snow levels generally above 10000ft.
this morning with a ridge aloft out west and a deep trough over the eastern half of the country. This is driving a second and more potent cold front through the peninsula. As mentioned in the previous discussion, a period of mostly cloudy skies due to this will be possible, but then skies will clear this evening as the mid/upper- level trough swings through. A strong cold front moving through the region has brought elevated winds to the coastal waters, with a Small Craft Advisory in place. Winds will diminish significantly on Thursday as high pressure builds in over the region.
Frost/freeze headlines continued for again tonight with temps dipping into the low to mid 30s across the higher terrain. Chattanooga Airport, TN 57 40 67 47 / 10 0 0 0 Knoxville McGhee Tyson Airport, TN 54 38 64 44 / 10 10 0 0 Oak Ridge, TN 54 38 63 44 / 10 0 0 0 Tri Cities Airport, TN 51 33 59 38 / 20 20 0 0 NC.
731 AM EDT Wed Oct 25 2017 The winds will continue to increase from the northwest at 10 to 15 knots with gusts up to 20 knots as high pressure builds and front exits the area. Iso to sct showers will continue through the early morning hrs over the east coast taf sites, before going dry after 15Z today, as the cold front moves off the east coast of South FL.
/issued 356 AM CDT Wed Oct 25 2017/ A large upper level ridge over the western U. A developing trough over the northern Rockies will dampen the ridge Thursday creating more westerly flow and causing temperatures to warm back up well above normal with highs reaching well into the 80s, and even a few 90s along the Rio Grande. The trough continues to deepen and drop south into the Central Plains on Thursday night unleashing another shot of cold air out of Canada.
Just a quick update to account for current weather trends this morning, including adding some freezing fog around Island Park and the Stanley Basin. High pressure dominates the western states today, but a weak upper trough will push in from British Columbia tonight/tomorrow. The trough should bring some elevated winds to the region tomorrow, but should remain well below advisory levels.
726 AM EDT Wed Oct 25 2017 A strong upper level trough will cross the area today providing cool temperatures and some mountain showers.
Wouldn't be surprised if we go more solidly into the low 90s if the upper debris clouds from the upstream MCS don't limit heating too much. In addition, stronger forcing arrives ahead of the parent trough as we get deeper into the afternoon and evening. In addition to the damaging wind threat, PWAT values will continue to climb throughout the evening as moisture pools out ahead of the approaching upper trough and surface front.
A few, very light showers noted over the higher terrain of southwest Idaho, though coverage continues to weaken. Temperatures will warm slightly today, with further warming expected on Sunday under a building ridge.
300 AM CDT Sat Jun 17 2017 A midlevel disturbance across the Nrn Plains and Nrn Rockies moves east today sending a strong Pacific cold front through Western and North Central Nebraska. A blend of the HRRR and RAP models plus bias correction yields highs in the lower 70s north to mid 80s south. A fairly quiet pattern returns on Sunday as high pressure builds into the region.
553 AM EDT Sat Jun 17 2017 Pennsylvania will remain at the interface of an upper trough over the plains states and a ridge off the east coast through this weekend.
An upper-level ridge is forecast to build from NRN CA northward across WRN OR/WA today into Sunday.
Tilly The cold front and associated trough responsible for the morning MCS will slowly move eastward into north central and central Missouri. The cold front will likely clear the area by mid morning on Sunday with high pressure building in from the great plains.
Westerly downslope flow under upper-lvl ridging will result in warm temperatures today, but not close to convective temps. There is the possibilty that heat advisory for Sat could be upgraded to warning as a few places today got a little warmer than forecast. Sat 85h temps will be as much as 1C warmer and 17C-18C at 7h! Today's high temp at MAF was about 15F over the 34C 85h temp, 111 is possible tmw? PREV DISCUSSION. Several models have sped up the arrival of a cold front to early Sunday morning as opposed to midday or early afternoon.
647 AM EDT Sat Jun 17 2017 Pennsylvania will remain at the interface of an upper trough over the plains states and a ridge off the east coast through this weekend.
Mid-level ridge over northwest Mexico and southwest CONUS will support high temperatures well above 100 degrees Fahrenheit today, with 850 mb temperatures at or above 36 degrees Celsius continuing to be forecast across western half of Texas Panhandle at day's end. Relief from the heat comes in the form of a strong cold front, progged to arrive this evening and tonight.
Much of the area has dew points in the lower to mid 60s, but the far northwest the dew point has already started to fall.
Isolated showers will linger in the eastern highlands this morning as a minor upper trof exits the area. Upper ridging will build up over the west by Sun. This will result in dry and warmer conditions thru Mon. Models suggest some moisture flowing into the area on Tue as the upper ridge flattens to zonal flow. but cooler temps. High pressure builds over our area going through the remainder of the weekend which will allow for drying conditions and warming temperatures.
343 AM CDT Sat Jun 17 2017 Upper ridging will continue to dominate the southwest and southcentral part of the country. Temperatures today will likely be a little hotter than yesterday with highs of 105+ degrees across most of the area except the higher terrain. An upper trough moving over the Upper Midwest is expected to push a cold front south into the area Sunday.
Models again depicting best chance for convection to fire in the higher terrain of the eastern mountains and to a lesser extent across northern portions of the area, so will include chance PoPs in these areas with just slight chance elsewhere.
Once system moves through by Sunday morning, conditions will be cooler for early part of week.
131 AM CDT Sat Jun 17 2017 For the ArkLaTex, VFR, but not for long, MVFR stratus and daybreak BR will quickly diminish with daytime mixing by 17/15-16z with mostly VFR skc as upper ridge increases over area. Upper ridge is suppressing any thought of convection across the remainder of our region attm. Not seeing much in the way of upstream disturbances embedded in northwest flow aloft as has been the case the last couple nights that could effect us late tonight or during the day Saturday so with a strengthening upper level ridge axis across our region, kept pops out of the forecast for Saturday.
248 AM EDT Sat Jun 17 2017 A mid to upper level low will sit along the northern Gulf coast through tonight, with southwesterly flow aloft prevailing over the region. A weak low/mid level trough will continue to push east of the region today, and drier and more stable air will move in. Temperatures will rise into the upper 80s to lower 90s, with overnight lows in the low to mid 70s.
A weak trough aloft remained over the state but the better instability was mostly east and central GA this afternoon and evening. Saturday should be similar with the remnants of the upper trough in place. Looks like the northwest zones will have the lowest pops for Saturday also. Given weak high pressure across the area with a bit more volatility aloft, we will likely see some scattered showers and thunderstorms on Sunday. Current thinking is a bit more activity across the north as a front approaches with better trough inflection by late afternoon/evening.
1112 PM MDT Fri Jun 16 2017 Moisture in westerly flow aloft with a short wave low pressure trough will support scattered showers with isolated thunderstorms with strong wind gusts and hail this evening. Temperatures will cool with a cold front behind the trough moving south and east late tonight and Saturday morning.
A dry cold front will continue moving south through Utah today and tonight.
Weak high pressure aloft will prevail over the region tonight through Saturday. A warm front will bring some light rain to the area Saturday night and Sunday.
Low temperatures will mainly be in the lower to middle 60s, a few cooler spots in northeast Colorado.
637 AM EDT Sat Jun 17 2017 Upper air pattern consists of a 500 mb ridge across the desert sw and troughing in the ern U. Temporary switch to cooler weather pattern in store late this weekend into early the upcoming week. Shear is weak with upper trough axis overhead but freezing levels will be lower. Thu into Fri, upper troughing moves from western Canada to Manitoba and northern Ontario. Most of the precip should be east of the area on Fri as the cold front sweeps instability/tsra out of the area with drier air returning.
1142 PM MDT Fri Jun 16 2017 Desert SW upper ridge slowly building northward across Southern Colorado today, with warm to hot max temps across the entire region. On Sat, ridge begins to flatten as upper trough sharpens over the nrn plains and cold front associated with the trough approaches the area during the afternoon. Most models suggest fropa around 00z or later on the plains, which will keep srn CO hot and dry for another day, with max temps perhaps a degf or two warmer than Fri as mixing will increase slightly ahead of the front.
122 AM EDT Sat Jun 17 2017 Showers and thunderstorms will remain possible prior to the passage of a cold front on Sunday. Otherwise, cold front will sweep through by Sunday with cooler and less humid air arriving through mid week. Warm front will begin to edge back north for the second half of the week, slowly increasing both temps and humidity. No major system, but arrival of warm front could bring some precip chances as well as hit or miss convection south of it into the weekend.
345 AM EDT Sat Jun 17 2017 High pressure to the east combined with a large area of low pressure to our west will keep us in a moist southerly flow through the weekend.
416 AM CDT Sat Jun 17 2017 Upper ridging will continue to dominate the southwest and southcentral part of the country. Temperatures today will likely be a little hotter than yesterday with highs of 105+ degrees across most of the area except the higher terrain. An upper trough moving over the Upper Midwest is expected to push a cold front south into the area Sunday.
A closed upper low over northwest Ontario will drift around this same area this afternoon through Saturday. A longer wave trof will extend from the upper low southwest into South Dakota by Saturday afternoon. This is when a long wave trof will cross into the Dakotas by the afternoon. A more vigorous shot of vorticity moves into the base of the trof and will generate a more generous area of showers and storms by afternoon across the region. With more cloud cover anticipated, max temps will be a bit cooler with upper 60s along the Borderland, to the upper 70s over the southern tier of the region.