Aikyam-Lab/Synoptic-Bench huggingface dataset:
133 AM EDT THU JUN 30 2016 High pressure will build in tonight with dry air and persist into Thursday night. Scattered showers and thunderstorms are possible on Friday as a cold front moves through the northeast. Support has moved east as the flow has changed to northwest bringing in drier and cooler air. Thursday, high pressure remains in control so a mostly sunny day is expected. Still under a weak upper level trough. Friday another cold front and upper level trof moves through. This may cause enough clouds and showers to stabilize the airmass before the cold front. Timing on the front and trough is good with late day passage.
Weather pattern over the northern Rockies and adjacent northern high plains region today will transition from a moderate ridge of high pressure to more of a zonal flow through the forecast period. This will all be driven by the low pressure center and its associated upper-level trough upstream over British Columbia.
105 AM EDT THU JUN 30 2016 Warmer weather will return for Thursday, with the next chance of showers and storms coming on Friday with a cold front.
220 AM PDT THU JUN 30 2016 The persistent upper level ridge, responsible for the current warm conditions, begins to weaken today into this weekend, leading to increasing westerly winds and eventually moderating temperatures back to near normal temperatures.
528 AM EDT THU JUN 30 2016 High pressure is overhead today. A cold front will move east across the state on Friday followed by another high pressure area which will cover the region for most of the holiday weekend.
700 AM EDT THU JUN 30 2016 High pressure will build in from the west today and cross the region tonight and Friday. A cold front will approach from the west late Friday and will cross the region Friday night, bring scattered showers and thunderstorms.
434 AM EDT THU JUN 30 2016 High pressure through Thursday. A high pressure is in control at least for today. Clouds start to increase overnight as a cold front approaches from the west. The approaching cold front looks to diffuse out as it tries to cross CWA Friday into Friday night.
340 AM EDT THU JUN 30 2016 A ridge of high pressure will remain in firm control of the weather of eastern Kentucky today and most of the day on Friday. Highs today and tomorrow are forecast to top out in the mid to upper 80s, with overnight lows ranging from the upper 50s in valleys to the lower 60s elsewhere.
154 AM EDT THU JUN 30 2016 High pressure through Thursday. Have added fog in now at Charleston as I think that the lowland valleys will see at least patchy dense fog and the Mountain valleys in Eastern West Virginia will see areas of dense fog. UPS Cross over temps tonight will be in the low to mid 50s. A high pressure system dominates the forecast through Thursday. A cold front and upper trough will move into the region on Friday. cooler.
258 AM CDT THU JUN 30 2016 Skies are mostly clear across the forecast area this morning with temperatures ranging from the lower 60s to mid 70s. High pressure was over the Ohio Valley this morning. A cold front will drop down from the plains states. The cold front will move slowly south tonight and will reach southern sections of Missouri by Friday morning. Temperatures will be a little warmer tonight with lows Friday morning in the upper 60s to mid 70s. On Friday, the cold front will continue to move slowly south and will remain hung up over extreme southern Missouri. Temperatures will be a little warmer on Friday with highs in the 90-95 degree range. The cold front will stall out just north of the forecast area by Friday night and remain nearly stationary for much of the holiday weekend.
Showers and thunderstorms are expected along the cold front. Early morning water vapor imagery together with GFS 500mb heights and winds identified a positively tilted trough along the International border. Over the next 12 hours, that trough will take on a negative tilt, while the upper level jet rounding the base of the trough increases, and together these should strengthen the forcing with this wave and increase the coverage of showers and thunderstorms along the cold front in southeast MN and western WI. Couple that with freezing levels around 9500 ft, and the result it storms capable of producing severe hail. The low level shear is weak, so not anticipating a widespread damaging wind threat with these storms.
There is some weak Theta-E advection riding the upper level ridge along the Missouri River Valley in western Iowa and may help spawn some storms over western Iowa this afternoon into the early evening.
300 AM EDT THU JUN 30 2016 A ridge of high pressure will remain in firm control of the weather of eastern Kentucky today and most of the day on Friday. Highs today and tomorrow are forecast to top out in the mid to upper 80s, with overnight lows ranging from the upper 50s in valleys to the lower 60s elsewhere. A weak cold front is forecast to slide southeast across the area on Friday. The front will stall to our south and then lift back north as a warm front over the weekend, bringing a chance of showers and thunderstorms.
Upper level ridge still dominates the forecast area, but has shifted slightly further to the east and slightly more westerly flow will be over the area today.
352 AM CDT THU JUN 30 2016 (Today and Tonight) Upper ridging over New Mexico will continue to build southeastward into West Central Texas today and tonight. Temperatures will climb a degree or two from yesterday, to highs in the 92 to 96 range, with lows in the lower 70s tonight.
357 AM CDT THU JUN 30 2016 Latest water vapor imagery depicts an upper low circulating over southern Hudson bay with an attending trough swinging across northern and eastern ND. A surface cold front was located from near Hettinger to Linton and east to Oakes.
High pressure will provide another mild and pleasant day across central Indiana today. This frontal zone will stall to our south early in the weekend before returning back northward late in the weekend as low pressure develops and moves slowly east out of the south central Plains. Another spectacular day can be expected today with high pressure remaining the dominant force.
445 AM EDT THU JUN 30 2016 High pressure will keep our weather sunny today with highs near 80. Scattered showers and thunderstorms are possible on Friday as a cold front moves through the northeast.
214 AM EDT THU JUN 30 2016 High pressure will drift east and bring generally dry weather with comfortable humidity into Friday.
321 AM CDT THU JUN 30 2016 An upper level ridge centered over New Mexico will develop southeastward across Texas over the next couple of days, bringing hot and dry weather to North and Central Texas through the weekend. Meanwhile, a weak mid level trough continues to generate convection over Arizona. As the ridge builds southeast, the trough will propagate anticyclonically around its western and northern periphery. Over the weekend, the ridge will flatten and elongate west to east from northern Mexico to Florida as flow becomes zonal across the CONUS.
344 AM CDT THU JUN 30 2016 Low level ridging has built into AR and ERN TX creating a weak low level jet at 925hPa, which extends from NRN TX up into WRN MO. This is producing isentropic accent in the lower levels, 900-800hPa, in two distinct areas of the CWA, the W and NE portions. A cold front extending through central MN will advect southward to lie just north of the CWA Thursday afternoon into the evening. A MCV associated with the MCS over Nebraska currently, also moves over the CWA with similar timing to the cold front providing even more dynamics to develop scattered thunderstorms through through Thursday night.
320 AM EDT THU JUN 30 2016 High pressure centered over the area today will shift to the east coast on Friday. This will allow a cold front to sag south across the area tomorrow.
Slightly warmer lows are expected tonight (in the middle 60s) as an upper trough digs farther south over the region. The trough pattern starts to break down Friday as the upper trough continues east across the Great Lakes. Looks like this will drag a cold front through the region shown in a brief decrease in 850 temps and a slight wind shift and an increase in clouds. Highs will not be impacted much and still reach into the lower 90s but lows will be warmer Friday night, in the upper 60s/lower 70s.
Heat index values will once again be around 105 to 109 degrees across much the region with possibly excluding Victoria Crossroads where more cloud cover and slightly cooler temperatures will be. Somewhat drier air works into the region from the north-northwest on Friday as both surface and mid-level ridging move closer. We continue to confine our PoPs across the northern Coastal Bend where the higher moisture axis will remain.
338 AM EDT THU JUN 30 2016 High pressure will slide east of the area today but will still provide for mostly sunny skies and comfortable temperatures for the end of June. A cold front will drop across the region tonight bringing the next chance of showers and thunderstorms. Breezy and cooler conditions are then in store for Friday behind the front. This wave will race southeast and help drag a surface cold front through the region late tonight. Lows tonight will generally be in the lower 60s with some upper 50s still possible northeast. Aformentioned short wave and surface cold front will exit the far southeast mid morning Friday. Conditions will dry out with clearing of any clouds from west to east through the morning hours Friday as subsidence and high pressure move in.
1229 AM CDT THU JUN 30 2016 Main concern for tonight and Thursday will be a weak cold front sagging south from Canada. This band will then continue southeast Thursday morning, with the highest coverage likely to be over western WI and far eastern MN. Clearing skies will quickly follow for Thursday evening as high pressure brings drier air in. This will lead to warmer temperatures each day locally with light southerly flow also bringing increasing moisture.
High pressure aloft will shift to the east of Utah by Friday.
417 AM EDT THU JUN 30 2016 High pressure will maintain sunny and dry conditions today before rain chances increase on Friday. Light upslope flow onto the terrain, coupled with strong heating and increasing boundary layer moisture could support isolated to scattered convection in the southeastern zone ridges this afternoon as indicated in most numerical guidance. The general picture suggests light rain will be possible in the morning ahead of the front in a warm-advection pattern, with showers and storms developing along the system's advancing cold front Friday afternoon. Any precipitation will wane quickly Friday evening as the cold front continues its southeastward movement and the upper wave departs. High pressure is expected to build in its wake, leading to a drier and cooler Friday night.
310 AM EDT THU JUN 30 2016 High pressure will maintain sunny and dry conditions today before rain chances increase on Friday. Light upslope flow onto the terrain, coupled with strong heating and increasing boundary layer moisture could support isolated to scattered convection in the southeastern zone ridges this afternoon as indicated in most numerical guidance. The general picture suggests light rain will be possible in the morning ahead of the front in a warm-advection pattern, with showers and storms developing along the system's advancing cold front Friday afternoon. Any precipitation will wane quickly Friday evening as the cold front continues its southeastward movement and the upper wave departs. High pressure is expected to build in its wake, leading to a drier and cooler Friday night.
638 AM EDT THU JUN 30 2016 High pressure through Thursday. A high pressure is in control at least for today. Clouds start to increase overnight as a cold front approaches from the west. The approaching cold front looks to diffuse out as it tries to cross CWA Friday into Friday night.
303 AM EDT THU JUN 30 2016 High pressure will build in from the west today and cross the region tonight and Friday. A cold front will approach from the west late Friday and will cross the region Friday night, bring scattered showers and thunderstorms.
252 AM CDT THU JUN 30 2016 Showers and thunderstorms are expected along the cold front. Early morning water vapor imagery together with GFS 500mb heights and winds identified a positively tilted trough along the International border. Over the next 12 hours, that trough will take on a negative tilt, while the upper level jet rounding the base of the trough increases, and together these should strengthen the forcing with this wave and increase the coverage of showers and thunderstorms along the cold front in southeast MN and western WI. Couple that with freezing levels around 9500 ft, and the result it storms capable of producing severe hail. The low level shear is weak, so not anticipating a widespread damaging wind threat with these storms.
At the surface, an area of low pressure will be located across southeastern Colorado today with a stationary front bisecting Kansas. As for temperatures, highs today look to reach into the upper 80s to around 90 degrees with lows tonight ranging from the lower 60s across eastern Colorado to upper 60s across south central Kansas.
Mid-level high pressure centered over the Desert Southwest and extended over Deep South Texas and the Rio Grande Valley will produce light to moderate winds and limited cloud cover over the aerodromes through the next 24 hours, with no significant negative impacts to pilots and aircraft. Expect most all land areas to stay dry Thursday night as upper high moves closer, approaching central Texas by late Thu.
The increased cloud cover and weakening ridge will bring a few degrees of cooling today and Friday.
The fractured Western Atlantic ridge extends west across the Florida Peninsula. Temperatures are in the lower 80s with dewpoints in the mid 70s.
Some of the high resolution models are depicting potential fog at KTRI overnight, but am not biting on this actually occurring.
418 AM EDT THU JUN 30 2016 Southwest flow will prevail over the next few days as a trough persists across the panhandle and south GA/AL keeping our area in a muggy, unstable airmass into the weekend. The synoptic pattern will be dominated by stacked ridging aloft. and the lower level subtropical ridge axis extending across either the central or south-central Florida peninsula. Temperatures will be average to slightly above average due to the general ridging aloft. The close proximity of the subtropical ridge axis will keep synoptic winds and seas low. High pressure will dominate the area throughout the remaining work week and into the holiday weekend. As the high pressure moves closer to the Bay Area, afternoon surface coastal winds will shift from south-southwest to a west-southwest flow.
332 AM MDT THU JUN 30 2016 An upper level high will remain across the srn Rockies as a series of weak disturbances in wly flow aloft move across nrn CO mainly this aftn and tonight. Over the higher terrain will see a good chc of showers and tstms as well. As for highs will keep readings in the lower to mid 80s across the plains. For tonight another round of showers and tstms will dvlp early this evening over the higher terrain and then move east across the front range and plains by mid to late evening as a 2nd disturbance tracks across nrn CO. On Friday, upper level high pressure will be centered over central Texas with subtropical moisture flowing into Colorado from the southwest.
Additional development of showers and thunderstorms this afternoon along and ahead of a strong cold front dropping through the CWA this afternoon into early evening. 5 inches and lower freezing levels. Temperatures to top out similar to previous days in the upper 70s north to low 80s south, maybe be a bit warmer as the airmass in place is a little warmer.
321 AM EDT THU JUN 30 2016 High pressure through Thursday. A high pressure is in control at least for today. Clouds start to increase overnight as a cold front approaches from the west. The approaching cold front looks to diffuse out as it tries to cross CWA Friday into Friday night.
323 AM EDT THU JUN 30 2016 High pressure will continue to sink south and east today as the upper trough stretched from Ontario back through Saskatchewan swings down towards the area. This trough is expected to pivot across Michigan tonight, with a quick shot of deep layer forcing and narrow theta-e plume bringing a chance for showers and thunderstorms late. Kept pops at high chance however until we can see effects of diurnal heating cycle upstream, although confidence is higher for south-central Lower Michigan closer to the upper wave and cooler air aloft. Negative showalter indices and models kicking out a few hundred j/kg of CAPE continue to support low thunder chances tonight and early Friday before showers/tstorms exit east with the cold front.
A high pressure ridge will remain over the forecast area overnight.
648 AM EDT THU JUN 30 2016 High pressure will slide east of the area today but will still provide for mostly sunny skies and comfortable temperatures for the end of June. A cold front will drop across the region tonight bringing the next chance of showers and thunderstorms. Breezy and cooler conditions are then in store for Friday behind the front. This wave will race southeast and help drag a surface cold front through the region late tonight. Lows tonight will generally be in the lower 60s with some upper 50s still possible northeast. Aformentioned short wave and surface cold front will exit the far southeast mid morning Friday. Conditions will dry out with clearing of any clouds from west to east through the morning hours Friday as subsidence and high pressure move in.
High pressure over the eastern United States will control Indiana weather through Thursday. The high is forecast to gradually move east, allowing a cold front to cross our state Thursday night. High pressure redeveloping over the eastern USA should regain control of the weather Friday and keep it through the weekend.
The trough along the Gulf coast and the southeastern Atlantic coast will continue to linger through Thursday and Friday with southerly low level flow and deeper moisture continuing across the region on Thursday and Friday with forecast afternoon PWAT's around two inches or above both days. A weak upper level ridge will be in place across South Florida and regional waters during this period.
627 AM EDT THU JUN 30 2016 High pressure will keep our weather sunny today with highs near 80. Scattered showers and thunderstorms are possible on Friday as a cold front moves through the northeast.
Temperatures will also fall in the afternoon a couple degrees with lake breeze boundaries and a cold front moving through. An upper trough moving through late Thu will lead to showers and thunderstorms exiting eastern Upper Michigan by late Thu night. Expected rain along an approaching cold front and quickly lowering ceilings are expected to develop this morning with conditions lowering to IFR at KCMX and MVFR at KIWD. A cold front crossing Lake Superior late tonight through Thursday will bring NW winds to 20 kts into Fri, strongest over the east half. Otherwise, W to NW flow of less than 20 knots is expected late Friday through the 4th of July as high pressure moves across the region.
442 PM CST Tue Dec 13 2016 Cold front as of 22z has pushed south and east of all our terminal locations late this afternoon.
425 PM MST Tue Dec 13 2016 Upper level analysis has giant closed low over central Canada with broad trof across much of the CONUS. At the surface, arctic high pressure dominates with temperatures in the teens to around 20 degrees at 2pm. Low-level trof will begin approaching the region Wednesday night.
but the lower CIGS and VIS for local MVFR to IFR conditions will persist through the rest of the night. Improving conditions expected on Wednesday as high pressure builds in for VFR conditions and winds less than 10 KTs.
/44/ Cold, warmer, thunderstorms, winter precip, 40-50 degree temperature drop, and a partridge in a pear tree.
529 PM EST Tue Dec 13 2016 Rapidly moving low pressure will spread snow across the much of the region into this evening and will usher in an arctic airmass for the late week. Another system will move in for the start of the weekend, bringing a wintry mix and some warmer air. Further south, temperatures should warm enough to allow for a mixture of rain/snow and light accumulations are expected over the southeast ridges after the the frontal passage for a short duration within upslope flow. Building high pressure in the wake of the front and lowering inversion heights should end precipitation over the ridges by late tonight. Brief high pressure will help maintain mostly dry weather for much of Wednesday.
535 PM CST Tue Dec 13 2016 Cold front continues to push through the region and will clear the area later tonight. Behind it, it will bring very dry and cold air as high pressure continues to build into the region.
410 PM CST Tue Dec 13 2016 Another cold front will bring a reinforcing shot of cold air into the forecast area later tonight. The wind will begin to decrease by late Wednesday afternoon as a cold area of high pressure slides down into the region.
Hanover, IN webcam showed a light dusting of snow earlier but feel the light band of mixed precip will become less wintry as it moves into slightly warmer air and dissipates. Sleet and snow have been reported at times when rates were sufficient for low-level wet-bulb cooling, but with surface temps still just above freezing the impacts have been minimal. Temps will continue to run below normal, but the biggest departures don't come until Wednesday night as the high settles overhead.
505 PM CST Tue Dec 13 2016 The next cold front is slated to move across the Oklahoma and Texas Panhandles on Wednesday with cooler temperatures in its wake.
558 PM CST Tue Dec 13 2016 A band of low end MVFR CIGs will move across the Hill Country to areas along and east of the I-35 corridor a couple of hours after a cold front moving across our area. 13/20Z surface observations show a cold front is currently located just north of the region near Temple. This cold front will continue to move southward overnight, bringing increasing northerly winds and cooler air to the region overnight. A secondary surge of high pressure moves in Wednesday night bringing another batch of cool and dry air to south central Texas.
High pressure is building into Middle Tennessee from the Midwest this evening, although persistent low ceilings are helping keep a lid on overnight cooling.
1035 PM EST Tue Dec 13 2016 Data from the Key West evening radiosonde balloon indicated rich moisture in the lowest 2500 feet.
A cold front will cross the area Wednesday. Cold high pressure will build into the region for the end of the week. Moisture will return over the weekend ahead of another cold front. Low pressure is forecast to develop on the boundary over the southern Midlands and CSRA and move east. Overnight lows will range from the lower 40s north to the lower 50s south. The chance for rain will diminish during the day Wednesday as the cold front crosses the area and moves off the coast.
700 PM CST Tue Dec 13 2016 A cold front is moving through the area early this evening. Upper low currently rotating around northeastern Manitoba will dig further southeastward into Ontario tonight. Satellite loops show a fair amount of mid and high clouds upstream near the cold front. The center of the high will remain to our south and west throughout the day so we will continue to have a decent gradient and breezy northwest winds.
403 PM MST Tue Dec 13 2016 Satellite imagery says it all: dreary and dull as high clouds kept out the sun and kept temperatures slightly cooler than normal for much of the day. The jet will be shifting northward while vorticity maxima also appear to be on the low side. The Grand Mesa will see some accumulation too but amounts look to be on the low side - future shifts should keep an eye on how things pan out there.