Aikyam-Lab/Synoptic-Bench huggingface dataset:
1121 PM CDT Tue May 5 2020 Low pressure across the Midwest will continue to produce plenty of clouds and periods of light rain into this evening. A series of cold fronts will move through the region over the next several days keeping clouds in place and temperatures well below normal. Latest water vapor imagery showing a well-defined curl in the southeast tip of iowa, within the broad upper trough swinging southeast into Illinois. near the trough, low clouds are anchored in place.
155 AM MDT Wed May 6 2020 Mean troughing ongoing over central NOAM as the NE PAC upper trough remains fixed.
1259 AM EDT Wed May 6 2020 Cooler temperature and developing rain can be expected overnight with some snow mixing in toward morning for some areas. Favorable ascent with warm frontal interaction will continue to spawn rain tonight a broad low pressure digs over the Great Lakes and Ohio Valley Regions. Rain showers will continue on Wednesday as the low continues to slowly develop eastward. Better precipitation chances are indicated east of I 79 given trough-axis/ascent positioning.
1122 PM EDT Tue May 5 2020 Low pressure system will move off the coast late tonight and cooler and drier air will spread into the area through the mid week.
107 AM EDT Wed May 6 2020 Skies will clear out today, with plenty of sunshine eventually appearing to make it feel warmer than it really is.
439 AM CDT Wed May 6 2020 A cold front will sag southward across the Northland today. Temperatures today will reach the low 50s along the North Shore to the middle 60s in the St. A wedge of high pressure will be over the Northland Thursday with mostly sunny skies but cooler temperatures. A closed upper low over northern Ontario will push southward into southern Ontario and Lower Michigan Thursday night.
618 AM CDT Wed May 6 2020 High temperatures are expected to stay in the low to mid 60s with lows in the 40s. Decided to stick with the guidance blend for temperatures since it was more on the warmer side.
An associated cold front will sweep from west to east across the area late afternoon. The most snow will fall in the Bighorns, with 4 to 6 inches possible over the highest terrain. WY remains pinned between large ridge along the west coast and low across the Great lakes Region, with northwest flow aloft continuing through the weekend.
The weak ridge axis across South Florida appears to finally be retreating eastward with a short-lived col region now making an appearance in the Keys.
For today s/w ridge starts building into the region from the west. Tonight should be mainly dry with upper ridge overhead, but for Thursday pcpn chances are on the increase as upper low moving through the Northern Rockies turns and heads southeast across western SD. As the low moves through the state, the west river area of the ABR CWA is likely to experience the highest chances for measurable rain.
407 AM CDT Wed May 6 2020 High temperatures are expected to stay in the low to mid 60s with lows in the 40s. Decided to stick with the guidance blend for temperatures since it was more on the warmer side.
The remainder of the area will be dry with hot temperatures in the low to mid 90s. A wind shift to the northwest will begin late afternoon and into this evening Turning noticeably cooler tonight behind the front as temps fall into the mid/upper north of Orlando and upper 50s to low 60s across the remainder of the area with clearing skies.
Mixture of MVFR/VFR CIGs this morning in wake of a cold front. Isolated showers and thunderstorms firing up in the Hill Country expected to move into South Texas with the H7 trough through the morning/afternoon. Temperatures today should be cooler in the 80s under mostly cloudy skies and persistent northeasterly winds. Most inland locations tonight should drop into the 60s, with cooler spots in the lower 60s for areas from the Victoria Crossroads west toward Cotulla. Gradual warming is expected for Thursday with highs along the coast in the lower 80s and highs across the Rio Grande Plains in the lower 90s.
617 AM EDT Wed May 6 2020 VFR conditions are expected as cigs above 10kft pivot away to the east today as low pressure in western PA lifts into the northeast CONUS.
400 AM MDT Wed May 6 2020 Mean troughing ongoing over central NOAM as the NE PAC upper trough remains fixed. NE Pac deep upper trough will then support downstream ridging over western NOAM the remainder of the period, while blocking flow develops over the NW Atlantic. This will sustain central NOAM troughing, with a cold core trough settling into the upper Midwest and Great Lakes. The western extent of troughing is progged to back into the region.
/Issued 245 AM CDT Wed May 6 2020/ A quiet and pleasant day is in store, with light winds under surface ridging conditions. Expect highs ranging from the upper 60s across far northwest Arkansas to the lower/mid 70s elsewhere. Elevated instability improves some Thursday night, and could see a few severe storms (hail being the main threat) as activity increases along the southward advancing cold front.
A cold front will move south across the area this evening with some clouds and maybe a few sprinkles.
A trough over the MS/OH valleys will continue digging southeast today. Temperatures tonight will approach freezing across the northern counties, but shouldn't drop low enough to necessitate freeze headlines. Another elevated fire weather day is anticipated for Thursday despite slightly cooler temps. Dew points dropping into the teens to low 20s will make up for the cooler temps and RH is likely to drop to around 20 percent by afternoon.
946 AM CDT Wed May 6 2020 A cold front will sag southward across the Northland today. Temperatures today will reach the low 50s along the North Shore to the middle 60s in the St. A wedge of high pressure will be over the Northland Thursday with mostly sunny skies but cooler temperatures. A closed upper low over northern Ontario will push southward into southern Ontario and Lower Michigan Thursday night.
Isolated showers and thunderstorms firing up in the Hill Country expected to move into South Texas with the H7 trough through the morning/afternoon. Temperatures today should be cooler in the 80s under mostly cloudy skies and persistent northeasterly winds. Most inland locations tonight should drop into the 60s, with cooler spots in the lower 60s for areas from the Victoria Crossroads west toward Cotulla. Gradual warming is expected for Thursday with highs along the coast in the lower 80s and highs across the Rio Grande Plains in the lower 90s.
As the ridge will be moving from west to east, Carbon County will have the opportunity to warm into the low 70s this afternoon, while the remainder of the region will remain in the 60s. Another cool, near freezing night tonight as westerly winds increase west of the Laramie Range over the course of the night. Winds increase early Thursday, becoming stronger over the course of the morning and afternoon as a deep trough clips the region under the influence of a northwesterly flow aloft. Best chance for strongest winds will be over the I-80 Summit where subsidence will set up over the area in the morning through mid-afternoon as the associated front and increased gradients move northwest to southeast across the region with the passing trough.
A ridge was placed over the Rockies and northern high plains this morning as a trough upstream was moving into the Pacific Northwest. The forecast problem is where that frontogenetic forcing develops with ensemble members ranging in placement of the highest QPF axis from a northern solution of Golden Valley through Adams counties to keeping the brunt of the QPF south in the South Dakota side. On the high- resolution side of numerical models, the 00Z HREF places the mean QPF band along the further north range of solutions. 0" range, the LPMM product indicates that the high- end potential should be greater than that range with the possibility for greater than 1" of total rain by Thursday evening depending on where low level convergence develops.
Warmer temperatures return to all areas today under sunny sky.
A cold front will sag southward across the Northland today. Temperatures today will reach the low 50s along the North Shore to the middle 60s in the St. A wedge of high pressure will be over the Northland Thursday with mostly sunny skies but cooler temperatures. A closed upper low over northern Ontario will push southward into southern Ontario and Lower Michigan Thursday night.
446 AM CDT Wed May 6 2020 A slightly cooler airmass settled in across the region yesterday and expect afternoon temperatures to be 5 to 7 degrees below yesterdays readings despite near full sunshine to start the day. Despite the cooler temperatures. cooler than normal temperatures and multiple.
457 AM CDT Wed May 6 2020 The area currently remains on the stable side of an upper-level trough which has brought mostly clear skies across the Mid-South. The trough will bring a reinforcing shot of cooler than normal air which will persist through the week. Temperatures will be in the 60s and low 70s for highs with lows dropping into the low 40s to mid 50s. A weak ridge will attempt to make its way to the Mid-South on Thursday but will fill as an upper-level clipper system dives southeast from the Montana/Canadian border.
A very weak lobe vorticity rotating around the trough across the Great Lakes was triggering isolated sprinkles across east central NE early this morning. Otherwise it's a quiet day with northerly winds at 10-15 mph, scattered to broken clouds, and highs in the lower to mid 60s. The next trough which is currently moving into the Pacific Northwest will move into the northern Rockies tonight. Warm air advection aloft ahead of the trough should help trigger scattered showers and thunderstorms across the central Plains tonight, but generally remaining west of the area through 12z Thursday.
Upper level ridge over the High Plains will try to shift east a little then southeast tonight and Thu. Ahead of the short wave, some low to mid level moisture moves in today as seen with a 700mb theta-e ridge. Another short wave will rotate across Ontario and send a cold front south across the Great Lakes with the cold air back dooring the area late Thu night. Drier and cooler air will move in from the north and northeast late tonight and Thu. As the mean upper flow persists with deep troughing in the east and ridging to the west, NNW flow aloft develops bringing several clippers to the region.
1059 AM EDT Wed May 6 2020 This mornings cold front is currently across the Florida panhandle. Temps much cooler as strong CAA underway.
A drier and much warmer weather begins late Wednesday as high pressure builds over the region and will persist through the weekend.
325 AM PDT Wed May 6 2020 High pressure centered over northern Baja will continue the hot weather today with the heat peaking in many locations.
A cold front and strong short wave will move through the area mainly this morning, bringing showers to the region. These showers will gradually move eastward through the morning as the main cold front and short wave, which are just pushing onshore of the Oregon and Washington coasts also move eastward. Guidance suggests there will be some enhancement in the upslope flow over the Blues and there could even be some light snow accumulation over the highest elevations of the Blues with snow levels between 4500 and 5000 feet. Tonight through Thursday night look dry as a ridge builds over the Pacific Northwest.
This system will plow through and flatten the upper level ridge over the northern Rockies later this afternoon and tonight and then head southeast toward the central High Plains on Thursday. As the system approaches, we will see a response in the lower to middle levels over the central Plains in that a low level jet will develop tonight over the central and southern Plains which will help pull some moisture back north into Kansas. By the afternoon, a stronger cold front will move into western Kansas and will be the focus for late afternoon and evening thunderstorms across central and parts of southwest Kansas.
651 AM CDT Wed May 6 2020 A slightly cooler airmass settled in across the region yesterday and expect afternoon temperatures to be 5 to 7 degrees below yesterdays readings despite near full sunshine to start the day. Despite the cooler temperatures. cooler than normal temperatures and multiple.
Temperatures will be cooler today compared to yesterday's highs, much closer to seasonal norms, but this return to normal will be brief. Upper level ridging builds tonight, becoming amplified Thursday and remaining over the area through the weekend.
Northwest winds will increase behind the front making the afternoon feel much cooler than what you would expect for May 6. Passage of a cold front will change light SW winds to NNW with gusts around 20KT. High pressure will move in tonight with clearing skies and lighter winds.
At the same time, precipitation echos also are showing an growing trend on radars to our west across Oregon and Washington as a strong cold front works its way on shore. All things considered, the return of active weather is still at hand as the cold front steadily marches east into Idaho and Montana later today. First, what hasn't changed is the wind depictions as all models show today's cold front bearing impressive pressure rises and subsequently quite windy conditions along and especially behind the front. What has changed in the forecast is the overall speed of this cold front which subsequently is affecting the amount of precipitation possible.
Showers are the result of a strong upper low that is swinging to the southeast from the Midwest region. With the relatively strong lift, drizzle will also be possible this morning as the low moves to the southeast, and chances for light showers/drizzle will continue on the Plateau this afternoon. Another cold front will move through with the upper low during the morning, so the additional cold air will only allow highs to get to the mid 50s to low 60s.
Temperatures this morning are in the lower 50s to mid 60s. The clouds over west Tennessee are behind a cold front which is moving through north Mississippi at this time. /issued 457 AM CDT Wed May 6 2020/ The area currently remains on the stable side of an upper-level trough which has brought mostly clear skies across the Mid-South. The trough will bring a reinforcing shot of cooler than normal air which will persist through the week. Temperatures will be in the 60s and low 70s for highs with lows dropping into the low 40s to mid 50s. A weak ridge will attempt to make its way to the Mid-South on Thursday but will fill as an upper-level clipper system dives southeast from the Montana/Canadian border.
BKN to OVC skies are expected across the northern terminals as a cold front moves into the region this morning. Additionally, broad troughing over the Great Lakes Region can also be seen, with a ridge over the Intermountain West. Northwesterly flow aloft will continue through this afternoon as the aforementioned ridge amplifies over the Intermountain West. Meanwhile, surface wind speeds will increase over Arkansas as broad troughing over the Great Lakes Region and Upper Mississippi Valley pushes southeastward. As it does so, anticipate the synoptic feature to become embedded in the large scale troughing across the eastern CONUS, and swing southward towards Arkansas. This will create chances for widespread rainfall as another cold front drifts into the area. Southerly surface winds will return ahead of the anticipated rainfall, helping to advect warmer and more moist air into the region.
Some of the low spots on the plateau could see some patchy frost but it won't be widespread enough for an advisory.
1208 PM CDT Wed May 6 2020 High temperatures are expected to stay in the low to mid 60s with lows in the 40s. Decided to stick with the guidance blend for temperatures since it was more on the warmer side.
Cool Canadian High pressure over the plains states will continue to build southeast across Indiana tonight and Thursday.
214 PM MDT Wed May 6 2020 20z surface analysis had high pressure over eastern SD/NE with developing warm front over eastern MT/WY. Warm front will move across the region tonight with decent 850-700mb theta-e advection, enough perhaps for some elevated TS per MUCAPE/CAMS. Band of precipitation will settle into an arc from east central MT to central SD as the disturbance becomes an upper low. Upper low translates over the Black Hills into NE as it weakens later Thursday. Given orientation of upper low, dry slotting expected Thursday morning across much of northeast WY/southwest SD. Amounts quickly fall off to the southwest, which is probably good because wet bulb zero heights support snow over the higher elevations much of Thursday.
Low temperatures tonight should reach the low to mid 40s.
/Issued 1059 AM EDT Wed May 6 2020/ This mornings cold front is currently across the Florida panhandle. Temps much cooler as strong CAA underway.
As the trough continues to swing through we could see a few rumbles of thunder in the late morning and early afternoon, but no severe weather is expected. ABM Chattanooga Airport, TN 43 69 49 63 39 / 0 0 10 90 10 Knoxville McGhee Tyson Airport, TN 39 66 47 60 36 / 10 0 10 90 20 Oak Ridge, TN 39 67 47 60 35 / 10 0 20 90 20 Tri Cities Airport, TN 35 62 43 59 32 / 10 0 10 90 40.
Northwest winds will increase behind the front making the afternoon feel much cooler than what you would expect for May 6.
A potent cold front is moving across the region this morning with a few wind gusts up to 60 mph and blowing dust being reported with the showers along the front. Cold front exiting southeast Oregon will continue to move across southwest Idaho with scattered showers along the front.
316 PM EDT Wed May 6 2020 Currently - A weak pressure pattern is in place across the Keys due to a trough pushing southward into Florida and the eastern Gulf of Mexico, along with day time heating over the peninsula. Broad troughing is also working its way southward into our area through the lower levels. With that said, a reverse island cloud line was able to develop along the Lower and Middle Keys on the slowly veering steering flow. Forecast - The previously mentioned trough will continue to swing southeastward through our area, followed by an expanding high pressure system moving southeastwards towards the Gulf Coast. Expect winds to continue to clock around to northwest to north and freshen briefly as an associated weak cold front moves through the Keys.
For Thursday, temperatures rising into the low to mid 70s are expected across the forecast area, well below seasonal norms.
High pressure was centered over the central Plains. The high will move into the mid-Mississippi Valley keeping things dry. The high will sink south into the central Gulf Coast on Thursday. Temperatures will be a little warmer on Thursday with highs from the mid 60s to lower 70s. Showers and thunderstorms will develop ahead of the low with some of the activity moving into northwest sections of the Mid-South.
Winds will drop off tonight as the high continues to push across the immediate area, and then, increase from a southerly direction during the day tomorrow in advance of an approaching cold front. While shower chances will remain for much of the day tomorrow, the overall thunderstorm potential is likely to hold off until the evening and overnight, as the higher moisture and instability remains to the west. Will hold off on mentioning any kind of thunderstorm chances until late afternoon, and keeping the higher chances overnight as the front moves through.
211 PM CDT Wed May 6 2020 A cool Spring day out there today with northwest winds continuing to bring in a cooler air mass. Temperatures as of early afternoon were from the mid 50s in central MO to the low 60s elsewhere.
232 PM CDT Wed May 6 2020 Upper ridging will dominate overnight. The period will be characterized by ridging out west and troughing in the east with NWRLY flow across the central CONUS.
/Issued 104 PM CDT Wed May 6 2020/ /This afternoon through Thursday/ What a pleasant day out there! A few mid/high clouds are traveling across North and Central TX as temperatures steadily increase into the low 80s. Tonight's temperatures will be a few degrees warmer than this morning's, with lows from the mid 50s to low 60s (which is still nice). Storm chances won't arrive until Thursday night as the next cold front moves across North and Central TX.
Temperatures have reached the low to mid 60s with light north/northwest winds, which is where we can expect to see our highs this afternoon. With the departing mid-level trough to the east, enough weak and shallow instability has developed for cumulus clouds over northeast KS to persist through the afternoon hours. Forecast soundings show this cloud cover scattering out after sunset with high pressure sliding east into the overnight hours. Winds will remain light with lows in the low to mid 40s. The clouds and rain will keep temperatures on the cooler side with highs once again in the low to mid 60s.
Despite going with far cool side of the low temperature spectrum for lows last night, temperatures still fell a few degrees cooler than expected. Based on what happened last night, have cooled lows for tonight to the cold side of the low temperature spectrum again. Will likely look into going a bit cooler again as more new data becomes available.
Temperatures warm back into the lower 60s on Thursday, except a bit cooler near Lake Michigan.
1219 PM CDT Wed May 6 2020 A slightly cooler airmass settled in across the region yesterday and expect afternoon temperatures to be 5 to 7 degrees below yesterdays readings despite near full sunshine to start the day. Despite the cooler temperatures. cooler than normal temperatures and multiple.
Otherwise, generally expect skies to clear tonight with cool temperatures as high pressure over MB sags south. The high doesn't move much through Thursday night, with highs only in the upper 40s to mid 50s on Thursday (about 15 degrees below average).
328 PM CDT Wed May 6 2020 Northwesterly flow along with some low to mid level clouds have kept us on the cooler side today. Light rain could extend to almost all of our counties except for those on the east side of the Buffalo Ridge in SW MN.
354 PM CDT Wed May 6 2020 Late this afternoon through Thursday: Strong subsidence in the wake of an anomalously cold trough crossing the southeast CONUS is combining with May warmth to produce strong mixing over the ArkLaMiss region.
This boundary will pass through the region tonight, with a cooler and much drier air mass moving in behind it.
Warm and dry conditions will continue this afternoon, becoming even more dry for tomorrow as a dry cold front pushes through the area tonight. The cold front will knock high temperatures down into the 80s across the area for tomorrow, with relative humidity values falling into the 20-35% range.
A dry cold front will move south through northern Utah this afternoon, then continue through central and southern Utah tonight. High pressure aloft will strengthening across the western states and bring warmer temperatures back into the area beginning late in the week. The upper trough currently positioned across the Pacific Northwest will continue east and evolve into a closed circulation over Montana by this evening. This feature will then turn east-southeast and head for the northern/central plains as high pressure rebounds along the west coast late in the week. Solid low-level cold advection tied to the upper trough still lags well back across southwest Idaho.
305 PM EDT Wed May 6 2020 An upper level low will pass through the region tonight.
Weak low pressure passing by to the northeast will usher a weak cold front/wind shift into southern WI later Thursday/Thursday night. Deeper moisture along this zone along with passing low pressure is expected to bring showers to northern IL Thursday night. An amplifying long wave trof over southern Canada into the Great Lakes during this period will carry colder air southward across the area Thursday night and linger into the weekend.