Aikyam-Lab/Synoptic-Bench huggingface dataset:
For Saturday, afternoon thunderstorms will impact the higher terrain. High temperatures Friday will reach the low to mid 80s for the lower elevations with Saturdays temps cooling off into the low to mid 70s.
437 PM EDT Fri Jun 14 2019 Next upper low that will drop into the mean eastern North America trough is currently located over far northwestern Ontario. As the upper low continues to move slowly southward though the night into early Friday. surface cold front will drop southward out of Ontario across Lake Superior.
MU CAPE ahead of the low level jet nose should be around 2000 J/Kg, which may create some isolated severe weather, mainly in the form of hail. This will yield CAPE values in the 3000 to 4000 J/kg range in anticipation of a surface cold front, which will slide southward in the evening Saturday night.
109 PM PDT Fri Jun 14 2019 Weak low pressure aloft will maintain typical June weather with near to below average daytime temperatures and marine clouds and local fog spreading well inland each night.
322 PM CDT Fri Jun 14 2019 A deep upper low off the northern coast of Lake Superior places Nebraska in broad northwest flow aloft today. Convective initiation is underway along the Black Hills and western Pine Ridge as of 20z.
1247 PM MDT Fri Jun 14 2019 Upper level analysis shows troughs over the eastern and western parts of the CONUS, with northwest flow in between. The surface map shows low pressure over the Dakotas, with a cold front approaching the CWA from the northwest. As the cold front crosses the CWA this afternoon and evening, some storms will develop. Following the cold front, Saturday will be breezy and cooler, but still mild.
Southerly Gulf Flow overrunning relatively cooler air tomorrow morning may result in periodic MVFR conditions with ceilings below 3000 feet at LCH.
With high pressure in control across the Southern Appalachian Region.
developing over the High Plains and moving across Kansas similar to last night.
Behind the shifting ridge we'll see an open wave advect warmer air for the hottest day of the year so far tomorrow.
Showers/storms will be possible this evening/overnight across portions of the area with the highest chances across northern OK.
818 AM PDT Fri Jun 14 2019 Weak low pressure aloft will maintain typical June weather with near to below average daytime temperatures and marine clouds and local fog spreading well inland each night. A trough of low pressure moving inland through California into Arizona today will bring stronger onshore flow. Weak high pressure aloft will move across southern California on Saturday with winds in the mountains and deserts not as strong and and with high temperatures in inland areas a few degrees warmer.
Attention then turns toward the high plains where next round of thunderstorms that may affect our forecast area will develop late this afternoon.
/Issued 1059 AM EDT Fri Jun 14 2019/ High pressure will continue across the area today. /Issued 330 AM EDT Fri Jun 14 2019/ The short term period will begin with the forecast area positioned on the back side of a longwave trough currently lifting away to the northeast. By this evening, the high pressure center should be to the east of our area as it makes its move towards the Atlantic coast. Dewpoints in the 40s and 50s this afternoon will climb to the low 60s by Saturday afternoon.
317 PM EDT Fri Jun 14 2019 Building high pressure will bring dry conditions today. Deep northwest flow from an exiting upper-level trough is forecasted to keep temperature below the climatological average into the overnight time period. By Saturday, the upper-level trough is expected to weaken, and zonal flow will take over.
Elevated moisture transport on the low level jet through early tonight across central Kansas should maintain strong to severe convection perhaps as far east as the turnpike corridor before waning across the Flint Hills/southeast Kansas.
1248 PM MDT Fri Jun 14 2019 18Z Water Vapor Imagery/Rap analysis indicated zonal flow across the area with short wave trough crossing the mountains and approaching eastern Colorado. At the surface,trough axis/weak cold front draped across center portion of CWA and also seeing beginning of dryline development with nearly a 20 degree dewpoint gradient between HLC and ITR. Seems to be a somewhat dramatic shift with the models with respect to precipitation timing on Saturday as cold front is expected to be well south of the area and while capping will be weak even behind the front, downward motion associated with CAA should hold of any precipitation to later in the day when weak H5 trough (along with convection on the higher terrain) nears the area.
Going into this weekend, the dry high pressure that sat over Mid Tn today will move off to the east, allowing return flow to develop.
Dewpoints have increased into the upper 60s to near 70 along the immediate coast to the low to mid 60s across the northern areas. the northern broad trough will deepen and will become the main driver of our weather.
1216 PM MDT Fri Jun 14 2019 Overnight WV/IR loop revealed mid/upper level troughing over the western 2/3 of the CONUS. A couple of mid/upper level troughs will migrate eastward from the Intermountain West across the Rockies and High Plains.
230 PM EDT Fri Jun 14 2019 High pressure centered across the Middle Atlantic states will move offshore on Saturday.
A cooler, cloudier and for some a wetter weekend setting up for at least portions of the region.
1224 PM EDT Fri Jun 14 2019 Mostly sunny and breezy conditions for today with temperatures significantly warmer than yesterday.
1125 AM MDT Fri Jun 14 2019 Current upper level analysis has weak ridging across the western CONUS, with sharp trof across the eastern CONUS. Several weak disturbances are crossing the western ridge at the moment. Behind the cold front, highs Saturday will range from near 70 across northeastern WY and the Black Hills, to around 80 across south central SD.
Upper trough north of the area shifts eastward during this period, with weak zonal flow over FL/GA. At the surface, high pressure north of the area moves off the Mid-Atlantic coast.
1231 PM CDT Fri Jun 14 2019 Early-morning water vapor imagery and 00z upper-air analysis depict a prominent mid-level trough over eastern North America with prevailing northwest flow present upstream from that feature, generally extending from the Pacific Northwest through the northern and central Plains. Latest short-term model guidance suggests that the convection should move to the east/southeast of our area by early afternoon with decreasing clouds allowing for temperatures to warm into the lower to mid 80s west with mainly upper 70s in southwest IA.
310 PM EDT Fri Jun 14 2019 High pressure to our south will move off the coast on Sat. The high pressure over the East Coast will move off shore and will lead to WAA on Sat.
Latest mesoanalysis shows about 200 J/kg of CIN which needs to be over- come; however, a subtle short wave trough approaching from the west may be sufficient along with an hour or so of additional heating to overcome the EML. Saturday, we have a stronger short wave trough approaching the southern High Plains. The surface reflection of this trough and some stronger winds aloft will shove the dryline east into the Big Country.
The cold front is expected to help clear storms overnight tonight.
308 PM EDT Fri Jun 14 2019 There was a delayed start to the Lower Keys cloud line, and early convection firing along a convergence zone running from the southern Everglades through the Marquesas Keys have begun to produce outflow boundaries. coast the next 24 hours will serve to flatten the upper ridge, whereas the lower tropospheric ridge axis. The mid level ridge axis will lie near our latitude, with surface ridging just to the northeast.
205 PM EDT Fri Jun 14 2019 High pressure along with drier air and mostly clear skies will be over the region through tonight then move offshore on Saturday.
327 PM EDT Fri Jun 14 2019 High pressure over the western Atlantic will branch southwest into northern Florida, while a surface front washes out across the central Peninsula. Satellite derived precipitable water values suggest deep moisture pooling ahead of the trough, with around 2 inches present across south Florida. Mid-level ridging will build from the western Atlantic into the Gulf of Mexico, with a slight decrease in shower coverage possible early in this period.
A cold front currently over Alberta and Saskatchewan will move south across the forecast area this afternoon and evening. The trough will drift to eastern Saskatchewan late tonight which will diminish the chance for storms in the west. Another cold front is expected Saturday afternoon with NW flow aloft over the area.
Temperatures trend cooler for the weekend. Temperatures trend cooler on Saturday, nearing seasonal averages.
1150 AM CDT Fri Jun 14 2019 As an area of high pressure slides off to the east this morning, strong warm air advection will allow moisture to funnel into the region. Temperatures will begin a trend upwards with the return of the warmer and moist airmass to region. Expect highs in the upper 70s on Friday with plenty of dry time through the afternoon before another chance for rain returns to region by late Friday night as as a complex of showers and thunderstorms across the High Plains will slowly track towards the region.
251 PM EDT Fri Jun 14 2019 High pressure to our south will move off the coast on Sat. The high pressure over the East Coast will move off shore and will lead to WAA on Sat. Expect shower and t-storm activity to ramp up over Father's Day weekend across Central PA as warmer and more humid air returns to the Keystone State. The pattern will feature a surge of high PW air advecting eastward from the OH Valley, to the south of a surface cold front moving through the Great Lakes.
While organization will likely be difficult to sustain in the weakly sheared environment, the high CAPE values will support strong updrafts.
it will be a dry and quiet in the short term with high pressure in control. The high will begin to shift east on Saturday allowing for low level moisture to return. increasing dew points and bringing in warmer air. A few high clouds will begin to move in from the northwest on Saturday but with the high continuing to dominate area weather.
The last portion of the slow-moving upper level trough over Utah will exit to the east later tonight. High pressure aloft will settle over the Great Basin this weekend, followed by another slow-moving weather disturbance for the first half of the new week.
1100 PM EDT Fri Jun 14 2019 High pressure to our south will move off the coast on Sat. The high pressure over the East Coast will move off shore and will lead to WAA on Sat.
This will be nearly 10 degrees warmer than this morning which should be quite noticeable. In the lower levels, winds will be mainly out of the south around the western periphery of the Bermuda high - keeping temperatures warm and humidity high.
High pressure will move eastward tonight into Saturday. Southerly flow on the backside of the high will bring moisture back into the region through the day on Saturday.
1007 PM EDT Fri Jun 14 2019 High pressure to our south will move off the coast on Sat. The high pressure over the East Coast will move off shore and will lead to WAA on Sat.
832 PM EDT Fri Jun 14 2019 Building high pressure will bring dry conditions overnight. This trough is expected to exit ewd Sun morning, permitting a modest period of recovery in its wake. Showers will increase in coverage late Sat afternoon along a weak cold front in vicinity of Lake Erie as strong warm air advection ensues. With a return of the low-level jet, turbulence will be common as H8 flow sharpens considerably Sat night.
Weather Details: Showers and thunderstorms are underway mainly across the higher terrain but some additional activity has developed across the western High Plains of Nebraska. Expect continued development through the afternoon across the High Plains of Wyoming and Nebraska as higher then normal precipitable water values combine with moderate synoptic lift due to H5 troughing and growing boundary layer instability.
629 PM EDT Fri Jun 14 2019 High pressure to our south will move off the coast on Sat. The high pressure over the East Coast will move off shore and will lead to WAA on Sat.
/issued 327 PM EDT Fri Jun 14 2019/ High pressure over the western Atlantic will branch southwest into northern Florida, while a surface front washes out across the central Peninsula. Satellite derived precipitable water values suggest deep moisture pooling ahead of the trough, with around 2 inches present across south Florida. Mid-level ridging will build from the western Atlantic into the Gulf of Mexico, with a slight decrease in shower coverage possible early in this period.
High pressure over the area will continue to bring warm and dry conditions in the interior.
Seasonable min temps in the low 70s/mid 70s for the coast.
757 PM EDT Fri Jun 14 2019 High pressure along with drier air and mostly clear skies will be over the region through tonight then move offshore on Saturday.
Although temperatures will be slightly cooler than normal again Saturday morning, they will be quite a bit warmer than last night and range from the mid 60s east to near 70F west. This will be nearly 10 degrees warmer than this morning which should be quite noticeable. In the lower levels, winds will be mainly out of the south around the western periphery of the Bermuda high - keeping temperatures warm and humidity high.
gusty southerly winds lifting moisture into the region are expected to continue ahead of a low pressure system currently dropping southeast into the Desert Southwest. These conditions will aid in afternoon temperatures warming into the mid 80s/near 90 degrees with heat index values in the low/mid 90s across much of the CWA.
/Issued 230 PM EDT Fri Jun 14 2019/ High pressure centered across the Middle Atlantic states will move offshore on Saturday.
1042 PM EDT Fri Jun 14 2019 Evening soundings and WV satellite imagery show the longwave trough across the Northeast exiting off the East Coast. Behind this, zonal flow is predominant across much of the nation and troughing across the Southwest CONUS. This southerly flow will lead to some warmer temperatures and increasing low-level moisture. Chattanooga Airport, TN 60 87 68 89 / 0 0 0 20 Knoxville McGhee Tyson Airport, TN 57 86 66 87 / 0 0 0 20 Oak Ridge, TN 57 86 66 87 / 0 0 0 20 Tri Cities Airport, TN 54 83 60 86 / 0 0 0 20.
High pressure shifts east on Saturday with increasing low-level southerly flow, an increase in mid and high level clouds, and afternoon cumulus near CHA.
Currently in transition to onshore flow regime as Bermuda ridge becomes established.
840 PM EDT Fri Jun 14 2019 Dry conditions from today will continue overnight as the influence from the high pressure system to the north persists into the morning hours. Overnight low temperatures are expected to range from the lower 60s in inland Georgia into the lower 70s near coastal areas and for the southernmost portions of the forecast area. Moderate onshore flow expected through Saturday, with winds just below exercise caution criteria, as high pressure north of the waters moves east of the Mid Atlantic coast.
Low clouds being more stubborn today across the coast and valleys with temps running even cooler than expected. Today's trough will become a weak upper ridge tomorrow with likely earlier clearing and a few degrees of warming, mainly inland.
640 PM CDT Fri Jun 14 2019 A deep upper low off the northern coast of Lake Superior places Nebraska in broad northwest flow aloft today. Convective initiation is underway along the Black Hills and western Pine Ridge as of 20z.
642 PM EDT Fri Jun 14 2019 High pressure to our south will move off the coast on Sat. The high pressure over the East Coast will move off shore and will lead to WAA on Sat.
The trough axis will be positioned south and east of the Divide by tomorrow morning, leaving the region under northwest flow. A weak ridge will filter over the area Saturday night, so expect storms diminishing shortly after sunset and calming winds overnight.
705 PM EDT Fri Jun 14 2019 Next upper low that will drop into the mean eastern North America trough is currently located over far northwestern Ontario. As the upper low continues to move slowly southward though the night into early Friday. surface cold front will drop southward out of Ontario across Lake Superior.
Upper 60s to lower 70s will be the low temperatures tonight but have increased the maximum and minimum temperatures up for Saturday to just slightly above normal as models have been trending that way.
A ridge of high pressure will remain over the region providing clear skies and warm temperatures.
414 AM EDT Sat Jun 15 2019 High pressure will extend into the area from offshore through the weekend. High pressure will move further into the Atlantic Basin today with a pressure ridge extending into the forecast area. Temperatures a little warmer and more seasonable around 90 in the afternoon. Mostly clear in the evening then some early morning clouds and a little warmer with continued weak south- southwest flow.
Although temperatures will be slightly cooler than normal again Saturday morning, they will be quite a bit warmer than last night and range from the mid 60s east to near 70F west. This will be nearly 10 degrees warmer than this morning which should be quite noticeable.
The impacts from the beautiful subsidence producing ridge that continues to slip slowly east over the Western Atlantic waters will be felt across the Southern Appalachian region today with just a few higher clouds along with some scattered cumulus development.
High pressure and slightly warmer temperatures are expected this weekend.
Zonal flow aloft and ridging at the surface will prevail through today.
The trough axis will be positioned south and east of the Divide by tomorrow morning, leaving the region under northwest flow. A weak ridge will filter over the area Saturday night, so expect storms diminishing shortly after sunset and calming winds overnight. On Sunday a weak transitory ridge progresses over the region with moisture still in place.
215 AM MDT Sat Jun 15 2019 An upper low will remain over Saskatchewan and Manitoba the next few days.
For the weekend, interior areas will be sunny and warm, but west winds and clouds will keep coastal regions cooler. This pattern will continue into Saturday, although a weak ridge aloft should produce a shallower marine layer with clouds not advancing quite so far inland. Earlier clearing is likely on Saturday, with warmer temperatures inland.
215 AM EDT Sat Jun 15 2019 Cool Canadian high pressure will move offshore today.
209 AM CDT Sat Jun 15 2019 Southerly return flow has commenced across the area and we are 15-20 degrees warmer than we were 24 hours ago. Dew points today will be in the 60s compared to the 40s yesterday with temperatures topping out in the low 80s on the plateau and the mid to upper 80s elsewhere.
403 AM EDT Sat Jun 15 2019 Next upper low that will drop into the mean eastern North America trough is currently located over far northwestern Ontario.
Latest mesoanalysis shows about 200 J/kg of CIN which needs to be over- come; however, a subtle short wave trough approaching from the west may be sufficient along with an hour or so of additional heating to overcome the EML. Saturday, we have a stronger short wave trough approaching the southern High Plains. The surface reflection of this trough and some stronger winds aloft will shove the dryline east into the Big Country. We'll see a slight cooldown Sunday with a modest weakening of the low level thermal ridge. Fathers Day highs will be a little cooler, with 100s restricted to the upper Trans Pecos and also along the Rio Grande.
That upper-air system will be attended by a cold front which will move through eastern NE and western IA today. Highs will be a bit cooler; in the upper 70s to lower 80s.
but after the first wave moves through the area, a second will approach from the west rotating around an upper low over southwest Manitoba.
A western Atlantic ridge below 700 mb will build westward and across extreme South Florida and the Florida Keys, allowing low level drier and stable air to slowly filter into our forecast region.
With dew point temperatures well into the 60s and lower 70s it will feel even warmer.
Looks like a good window of warming before a cold front drops through later today in advance of approaching high pressure, so bumped temps up from the previous forecast. Kept a chance for storms overnight due to some lingering instability and forcing as the low passes by to the south. The troughing would bring a small chance of showers on Sunday, but in no way any kind of washout for the day.
218 AM EDT Sat Jun 15 2019 High pressure along with drier air and mostly clear skies will be over the region through tonight then move offshore on Saturday. As the high move offshore winds will shift to southerly with Gulf moisture moving back into the region Saturday night and Sunday. High pressure will slide offshore Saturday with weak surface ridging remaining over the forecast area into the afternoon hours. With the high offshore, low-level flow will turn southeasterly during the afternoon then southerly Saturday night.
310 AM EDT Sat Jun 15 2019 High pressure will move off the southeast coast today, allowing temperatures and humidity to return to normal on Sunday. Flat ridging will continue to dominate the pattern today and tonight.
A cooler, cloudier and for some a wetter weekend setting up for at least portions of the region. Rainfall amounts will be lowest across NW MN with the highest amounts expected in the southern valley. Sunday through the next work week will continue be on the cooler side of normal with a somewhat active pattern of showers and thunderstorms possible. Temperatures Sunday will be in the 60s as the cold front drifts south of the FA with showers lingering in the southern valley Saturday night into Sunday.
322 AM EDT Sat Jun 15 2019 Short term (Today-Sunday): A stationary boundary draped across Central Florida will slowly dissipate and allow for high pressure to continue building to our NE through the day. Through the weekend, model soundings depict the low-level steering flow becoming more NE and then E/SE as weak, mid-level ridging briefly becomes established aloft.
Today will be hot once again with tomorrow slightly cooler due to the appearance of a weak cold front.
148 AM EDT Sat Jun 15 2019 High pressure to our south will move off the coast on Sat. The high pressure over the East Coast will move off shore and will lead to WAA on Sat.
Cooler temperatures will remain in place into the early part of the weekend as a well-defined marine layer hugs the coastline.
Expect warm and muggy conditions on Saturday as temperatures climb into the middle 80s and dewpoints in the lower 70s.
Convection should trend down over land and focus more over the warmer waters late in the evening into the overnight. /issued 327 PM EDT Fri Jun 14 2019/ High pressure over the western Atlantic will branch southwest into northern Florida, while a surface front washes out across the central Peninsula. Satellite derived precipitable water values suggest deep moisture pooling ahead of the trough, with around 2 inches present across south Florida. Mid-level ridging will build from the western Atlantic into the Gulf of Mexico, with a slight decrease in shower coverage possible early in this period.
The highest gusts will be at CKV/BNA/MQY through the afternoon, prior to sunset.
The weekend will start on a warmer note (+3-10 degrees vs.
Dewpoints should surge notably tomorrow, up into the lower 70's, and temps should top out in the lower 90's across the southern half of the state. The cooler and drier spell of weather that has been enjoyed for the past several days is coming to a rapid end.
but the winds will slowly diminish as the low level jet slowly weakens for the remainder of the night. highest values will be up north closer to the low level jet. we will feature the highest POPs along and south of I94. As a result, here in MI, any significant warmup attempt will have to dislodge this cooler airmass which looks unlikely to happen.