Aikyam-Lab/Synoptic-Bench huggingface dataset:
353 AM EDT Fri Jun 9 2017 Clear skies over the Lower Keys at this hour, with partly cloudy from Marathon across the Upper Keys. A low pressure system is just east of the Outer Banks with a trough stretching southwest across the Florida Peninsula. The low off the Outer Banks will deepen today, while traveling northeastward away from Florida. A weakness will develop in the pressure gradient near the Keys in the wake of the low and trough. As the low lifts out over the North Atlantic, the Atlantic ridge will rebuild across the Bahamas, strengthening the pressure gradient over the Keys area through Saturday night.
A broad trough over the Pac NW will keep cool and unsettled conditions over the region into the weekend. Southwest flow in advance of the trough axis will favor precipitation over the east-central Oregon and west-central Idaho mountains through the period, with enhanced activity during the day due to increased instability.
An upper level low off the coast will maintain scattered showers and periods of partial clearing, along with below average temperatures, today and Saturday.
The abundant sunshine will help Max Temps to rebound well into the upper 80s/near 90 over inland areas and the easterly flow at the coast at 10-15G20 mph will hold max temps in the lower/middle 80s there. Cooler than average temps will continue although not as cool as Fri AM and expect lower/middle 60s across inland SE GA and middle/upper 60s across inland NE FL and lower 70s at the coast.
An upper level trough continues to push into the western U. This trough has been pushing a cold front across the Interior Northwest since this morning.
Thinking this disturbance should begin to spark convection per satellite across the lower Trans Pecos, Davis Mountains and Big Bend and continue into this evening. This should place the best chance of thunderstorms ahead of it across the lower Trans Pecos and Big Bend. Precipitation chances should be on the decrease this weekend as an upper level ridge to the west builds into the area.
Northwest flow continues aloft in the atmosphere with high pressure centered to the west of Texas.
155 AM EDT Fri Jun 9 2017 High pressure will continue to build into the area through Saturday. Other change was to drop the near term temps a few degrees in the south as light winds and a cooler than normal air mass has allowed temps to drop quickly after sunset. Near zonal flow aloft across the region Friday as the upper trough lift northeast.
A weak wave of low pressure over the western Great Lakes will drift slowly eastward and bring scattered showers into SE Michigan during the morning. Judging by model sounding boundary layer dewpoint profiles, there will be potential for mixing to lower ratios favoring the lower CAPE estimates. Subsidence trailing the wave and ahead of the upper ridge axis will bring dry conditions tonight and at least a partial clearing trend. This transition will develop as the big Gulf of Alaska upper low digs into the California coast and closes off by Saturday.
326 AM EDT Fri Jun 9 2017 A ridge of high pressure at the surface will control the weather across the eastern Tennessee Valley over the next 24 hours. This will promote a mostly sunny and dry for Friday, helping to warm high temperatures a bit warmer than yesterday by about 5-8 degrees. Still, the prevailing upper-level NW flow aloft (thanks to a departing upper-trough to the east) will help to keep temperatures below the climatological norm by a degree or two.
325 AM EDT Fri Jun 9 2017 High pressure will continue to build into the area through Saturday. Upper level trough over the Mid Atlantic lifting to the northeast and near zonal flow aloft. Surface ridging across the area with strong subsidence developing during the day. The subsidence combined with weak warm advection should result in temperatures a few degrees warmer than yesterday.
Short term models have generally kept their scenario of a wave riding over the H5 ridge tonight into Friday. There are still differing ideas regarding how far south the thunderstorm potential will exist Friday with solutions generally favoring the higher chances in the northern parts of the forecast area.
Looking at forecast soundings this appears to be due to the NAM mixing out dewpoint more in the low levels.
The ridge axis aloft is across Colorado this morning and will shift into the central plains later today and tonight. This will increase the west and southwest flow aloft with even warmer and drier conditions. Temperatures will rise into the lower 90s over much of the plains this afternoon. With the warmer temperatures expect some acceleration of snow melt today and over the next few days over mountain rivers and streams. Readings should be in the low to mid 90s again for the plains and in the upper 60s to low 80s for the high country and high mountain valleys.
303 AM EDT Fri Jun 9 2017 High pressure and warming conditions Friday into the beginning of the new work week. Clouds already eroding from west to east as high pressure builds in behind departing upper low.
The upper ridge will begin to break down under the pressure of a strong upper low dropping into the Pacific NW, allowing westerly flow to increase over the weekend. Highs will warm back into the 90s to near 100 for the lowlands with 70s and 80s in the mountains.
414 AM EDT Fri Jun 9 2017 The combination of offshore low pressure and a weak front dropping through the area will lead to a few showers and isolated thunderstorms today into Saturday.
120 AM EDT Fri Jun 9 2017 High pressure will continue to pass by south of the region giving way to a weak cold front.
Looks maybe a tad cooler in some spots than previous forecast, but not by much. Here it looks a bit warmer and may only drop to between 60 and 62 degrees near Guntersville. This should allow for a slightly warmer day on Fri, as afternoon highs climb more into the lower 80s with scattered cu again developing over much of the area.
353 AM EDT Fri Jun 9 2017 Corrected aviation discussion Clear skies over the Lower Keys at this hour, with partly cloudy from Marathon across the Upper Keys. A low pressure system is just east of the Outer Banks with a trough stretching southwest across the Florida Peninsula. The low off the Outer Banks will deepen today, while traveling northeastward away from Florida. A weakness will develop in the pressure gradient near the Keys in the wake of the low and trough. As the low lifts out over the North Atlantic, the Atlantic ridge will rebuild across the Bahamas, strengthening the pressure gradient over the Keys area through Saturday night.
A weak area of low pressure over east central WI will slide south this morning. This will keep temps cooler near the lake, in the lower 70s.
High pressure at the surface and aloft will maintain dry weather through at least the first half of the weekend. Today will likely be the last day where dewpoints will be in the lower to mid 60s before RHs increase Saturday.
Temperatures will be slightly cooler each day as this storm slowly approaches and lowers heights over the region and pushes the thermal ridge axis to our east.
Tomorrow the ridge aloft becomes suppressed over the southern plains as the next main trough digs across the western US. The lee side trough begins to deepen therefore increasing the pressure gradient. Southwest flow above the surface will result in warmer temperatures with highs in the mid to upper 80s and a few locations in the lower 90s. Dew points should rise into the lower to mid 60s, which means heat indices should only be a few degrees higher than temperatures.
/15/ Today and tonight: A nice day is on tap for the ArkLaMiss as strong high pressure prevails. Saturday broad mid-level ridging with heights near 590mb will be situated across the region, with somewhat cutoff ridging over the western Gulf into Texas. This will slowly help reinforce return flow and dewpoints climbing into the lower 60s. With dewpoints and PWs slowly on the rise (around an inch) and strong mid-level ridging, hot and humid conditions will begin to be the persistent pattern.
334 AM CDT Fri Jun 9 2017 We will be under the influence of a mid and upper level ridge today.
Clouds have finally moved out of the region as the low moves up the Eastern Seaboard. Mostly clear skies overnight will allow temps to drop into the low 60s before sunrise. Dry air will continue to funnel into our area as westerly flow at mid and upper levels prevails in the wake of a deep trough moving off to our east.
Afternoon temperatures had warmed into the upper 60s to the lower 70s. A few showers may still fire this afternoon out toward the I-75 corridor, but our thinking is the better chances will be over the high terrain of SE KY. Mainly clear and dry conditions are expected into Friday night with lows in the upper 50s east of I-65 and in the lower 60s west of I-65.
Dry weather will prevail beginning Saturday, as mid-level ridge sets up over West Texas.
333 AM EDT Fri Jun 9 2017 Low pressure is expected to pass east of our region early Friday with much of the steady rain activity remaining over the ocean. However, an upper level low will provide for showery weather. A weak warm front crosses the region Saturday.
The ArkLaMiss remains beneath northwest flow aloft on the west side of the East Coast trough. Temperatures will likely be a degree or two warmer and moisture will slowly increase through the day from the south, but remain below an inch.
338 AM EDT Fri Jun 9 2017 A weak wave of low pressure over the western Great Lakes will drift slowly eastward and bring scattered showers into SE Michigan during the morning. Judging by model sounding boundary layer dewpoint profiles, there will be potential for mixing to lower ratios favoring the lower CAPE estimates. Subsidence trailing the wave and ahead of the upper ridge axis will bring dry conditions tonight and at least a partial clearing trend. This transition will develop as the big Gulf of Alaska upper low digs into the California coast and closes off by Saturday.
Increased fog wording a bit to account for clearing trends as high pressure builds into eastern Kentucky. Showers continue to wind down across far eastern Kentucky as the well-advertised upper trough pulls east. High pressure nudging into eastern kentucky from the west will lead to clearing skies this evening and tonight, thus promoting fog development tonight into Friday morning. Overall most locations remain dry this afternoon, but a few showers and thunderstorms have developed along and near the high terrain of SE KY. Ridging will build across the eastern half of the CONUS and remain in place until late in the period, Dys 6-7, when energy associated with an Intermountain West low pressure system will begin to move into the Ohio Valley while the parent low tracks into central Canada.
543 AM EDT Fri Jun 9 2017 The slow moving upper low that brought below normal temperatures and showers at times across the region this past week will finally begin to lift northeast and away from the region today. A weak ridge of a high pressure will build over the state today providing plenty of sunshine and dry conditions through at least the mid afternoon hours. A warm front and weak wave of low pressure will slide southeast from the upper great lakes region late today and will drift across northern Pennsylvania or southern New York tonight.
529 AM EDT Fri Jun 9 2017 Low pressure is expected to pass east of our region early Friday with much of the steady rain activity remaining over the ocean. However, an upper level low will provide for showery weather. A weak warm front crosses the region Saturday.
Rest Of The Weekend: The thermostat gets turned up several degrees as broad upper-deck ridging deamplifies as it spreads east across the Great Lakes Sat & Sat Night. An intense mid-upper cyclone that'll drift S, then SE from the OR/CA Border to Northern NV would cause the broad, STRONG mid-upper ridge to restrengthen as the weekend progresses. The mid to upper cyclone's positioning over the Western U. Highs in the lower 90s are still likely Sat & Sun. Mon-Tue: Hot & dry weather continues as the afore-mentioned cyclone begins to move east, reaching the Northern Rockies on Tue. Wed-Thu: As the mid-upper cyclone moves east across the Northern Plains, a weak cold front should move southeast into KS Wed Night.
247 AM EDT Fri Jun 9 2017 Clear skies and nearly calm winds prevailed early this morning across the lower Ohio Valley. A surface analysis showed high pressure centered over the TN Valley while aloft, water vapor imagery and 500 mb heights had a closed low across central PA. Temperatures locally were in the low to mid 50s. For Saturday, a bit more of a southerly flow component and a building upper level ridge will allow temperatures to warm another 3- 5 degrees with highs topping out in the mid 80s.
257 AM CDT Fri Jun 9 2017 Early-morning water vapor imagery and 00z upper-air analysis indicate a mid-level ridge from the southern Rockies into the lee of the Canadian Rockies, which is bracketed by troughing over the Pacific NW and eastern North America. trough will result in the gradual de- amplification of the downstream ridge which will shift into the north-central states today.
There is an upper level ridge to the west of the forecast area this afternoon, but there is a weak mid level wave to the north.
1131 PM MDT Thu Jun 8 2017 Tonight an upper ridge will be shifting eastward over the state the the axis expected to be about centered over CO by 12Z Fri. Then on Fri the ridge axis continues moving eastward over western KS by late in the afternoon. On Fri, drier air will be over the forecast area and will go with a dry forecast, along with warmer temps. Should see highs in the 90s across the plains, and in the 80s in the high valleys.
319 AM CDT Fri Jun 9 2017 A quieter day today across the forecast area, as surface boundary currently located near the Missouri River lifts northeast as a warm front through the day. Front is expected to still be located in our far northeast areas by peak heating, and weak convergence along the boundary could trigger isolated storms east of the Buffalo Ridge during the mid-late afternoon. Given fairly dry soundings and increasing southerly flow behind the warm front, looks like an optimum mixing day, and have continued to favor warmer/drier/windier bias-corrected guidance options for today. A cold front will move across the area from western Dakotas Saturday morning, but breezy to windy conditions ahead of the front will be the main impact. Tightening pressure gradient will yield windy conditions east of I-29, with highest gusts across the Buffalo Ridge area.
134 AM EDT Fri Jun 9 2017 The upper low that has resided across the region the past several days, and brought us a string of days with below normal temperatures will finally begin to lift northeast and away from the region tonight and Friday.
516 AM EDT Fri Jun 9 2017 The slow moving upper low that brought below normal temperatures and showers at times across the region this past week will finally begin to lift northeast and away from the region today. A weak ridge of a high pressure will build over the state today providing plenty of sunshine and dry conditions through at least the mid afternoon hours. A warm front and weak wave of low pressure will slide southeast from the upper great lakes region late today and will drift across northern Pennsylvania or southern New York tonight.
High pressure over the Western Gulf and a relatively dry atmosphere will maintain VFR conditions across all portions of Deep South Texas the next 24 hours. /issued 258 PM CDT Thu Jun 8 2017/ SHORT TERM (Tonight through Friday Night): The weather rounding out the work week will be picturesque as high pressure remains the dominate feature. Meanwhile, temperatures will continue to run a few degrees above normal, but slightly higher moisture levels could keep temperatures a smidge cooler for Friday. This wave will eventually become closed low cut off from the main flow over the western Gulf.
345 AM CDT Fri Jun 9 2017 Upper level ridging and increasing southerly flow will allow WAA to build into the region starting tomorrow increasing temperatures 3 to 4 degrees higher than yesterday over most of the CWA.
226 AM MDT Fri Jun 9 2017 Water vapor imagery early this morning showing upper ridge axis right overhead. Off the PACNW coast, a pretty strong low pressure system is slowly moving southeast to wards the Oregon and northern California coast.
Upper level low over the eastern half of the CONUS, with a ridge over the Rockies resulting in a moderately amplified pattern aloft, while a stubborn ridge remains in place over the mid Mississippi River Valley. In the immediate term, a quiet night, a couple degrees warmer than last night with some increasing high thin clouds. Tomorrow, a warming trend continues as the upper low moves out and the ridging builds in over the center of the country.
215 AM EDT Fri Jun 9 2017 High pressure and warming conditions Friday into the beginning of the new work week. Clouds already eroding from west to east as high pressure builds in behind departing upper low.
75 Deep-layer dry air and relative high pressure will be in place on Friday behind a departing upper trough.
These storms are currently moving southeast towards the DFW Metroplex and are associated with a weak upper trough moving southeast across the Plains. It is worth noting that a couple of the higher resolutions models, including the HRRR, indicate some convection could reach portions of East Texas by noon. With little in the way of cloud cover on Saturday, temperatures should be even warmer.
1108 PM MDT Thu Jun 8 2017 Upper level analysis shows a large ridge building over the Rockies, with northwest flow through the northern plains. Upper ridge will shift over the northern plains Friday, and winds will become southwesterly ahead of an approaching low-level trough. A fast-moving upper wave will pass to the northwest of the CWA Friday night, briefly flattening the ridge, and a cool front will move through the region. Highs Saturday will be a little cooler, ranging from the mid 70s across northeastern WY/northwestern SD/ Black Hills to near 90 across south central SD.
607 AM EDT Fri Jun 9 2017 High pressure and warming conditions Friday into the beginning of the new work week. Clouds already eroding from west to east as high pressure builds in behind departing upper low.
259 AM CDT Fri Jun 9 2017 The main apex of an upper level trough is moving east into the Atlantic Ocean with general troughing still in place over the Gulf coast. Few changes expected into Saturday as the upper trough lifts east with high pressure following behind it and passing over the CWA.
334 AM CDT Fri Jun 9 2017 Today and tonight: A nice day is on tap for the ArkLaMiss as strong high pressure prevails. Saturday broad mid-level ridging with heights near 590mb will be situated across the region, with somewhat cutoff ridging over the western Gulf into Texas. This will slowly help reinforce return flow and dewpoints climbing into the lower 60s. With dewpoints and PWs slowly on the rise (around an inch) and strong mid-level ridging, hot and humid conditions will begin to be the persistent pattern.
A dryline will move into portions of western Oklahoma and western north Texas during the early part of the day tomorrow, with winds shifting to the west and southwest and much warmer temperatures found behind it. Thunderstorm potential along the dryline during the afternoon hours should be suppressed by a strong cap aloft, with convection more likely on the trailing cold front and with the upper low during the overnight hours and into Wednesday morning. Much cooler air will arrive with the cold front for Wednesday, although it will be fairly short-lived.
With the next cold front progged to move north to south across our counties today, and this aforementioned lobe of energy swinging across southeast Wyoming in the moist airmass, expect scattered to numerous showers to once again develop this afternoon aided by the cold frontal lift and baroclinic band. Even cooler temperatures today in the wake of the cold front and with plenty of clouds and precipitation around.
638 AM EDT Tue Apr 25 2017 A low pressure system slowly moves through the Carolinas today, and then fills as it moves up the middle Atlantic seaboard through Wednesday night.
As the ridging spreads in the clouds should gradually thin and diminish through the day. The central CONUS will be under the influence of a trough, with several short waves to translate across the Mississippi Valley.
429 AM MDT Tue Apr 25 2017 Upper level analysis has large trof across the western CONUS, with closed low deepening across Wyoming. Current surface analysis has low pressure over Northeast WY with frontal boundary stretching south into Nebraska. Upper low will slowly track across northern WY today, before sliding slowly southeastward and weakening as the main upper trof moves out into the plains. As colder air wraps into the low, any rain still falling early this morning will change over to snow. All models still showing the highest precip amounts over northeast WY into the northern Black Hills area, generally near and just north of the track of the upper low. Over the Bear Lodge Mts, it still looks like amounts to around 8 inches are likely, especially across the higher elevations.
317 AM CDT Tue Apr 25 2017 The cold front this morning was located across south central Minnesota southwestward into the central plains. The cold front will be slow to make much eastward progress until the upper trough begins to lift northeastward.
An area of low pressure, currently over the tri-state area of ND/SD/MN will continue pushing east of the region. Another low pressure system, along with a weak upper level short wave, will approach the region from the west late tonight. This storm system wanes over western South Dakota as a stronger area of low pressure crosses Nebraska on Tuesday. The extended pattern remains cool and unsettled with upper troughing dominating. The broad trough will draw down cooler air so highs 10 to 20 degrees below average are expected through the weekend. Little accumulation is expected due to the warmer ground temps and daytime heating causing quick melting.
STRONG WINDS TO CONTINUE THROUGH TONIGHT IN SOME PLACES, THEN A broad upper level trough crossing the central and southern Rockies will steer the jet stream over New Mexico inducing breezy to windy conditions over central and southern areas tonight through Tuesday night. A Pacific cold front will cross from the northwest on Tuesday dropping temperatures 12 to 20 degrees below todays readings and reducing fire weather concerns.
400 AM CDT Tue Apr 25 2017 Current sfc analysis shows high pressure centered over the central Gulf ridging nwd across the lower MS Valley and Mid-South. while a low pressure system was noted over the TX/OK Panhandles. Water vapor imagery shows a general wrly flow aloft in place over the wrn Gulf Region, while weak troffing is seen over the wrn CONUS with multiple weak ripples noted within the flow. More seasonal temps are also expected today with maxes topping out in the lower 80s. Wrn CONUS trof is progged to deepen into tonight which will help turn the mid-level flow to a more swrly direction, introducing increasing Gulf moisture across the region.
555 AM EDT Tue Apr 25 2017 Low pressure will move away from the area today while high pressure builds in.
Have seen some breaks in the lower decks, but not enough when combined with what is still approaching from the east, to ramp up the fog from what is already advertised. Plenty of deep layer cloud cover continues to reside across eastern Kentucky this evening, stemming from a low pressure system across the Carolinas. Given the low pressure location we are seeing easterly flow across the region and mostly cloudy skies for most. This as deep low slowly moves north and east and weak upper level ridge tries to nudge into the region. Given that did keep fog going in the Lake Cumberland region tonight, given the higher potential for breaks in the clouds. This will allow for clearing skies and warmer temperatures with high progressing into the mid to upper 70s.
area seeing slowly increasing high clouds as trough develops in the southern plains.