Aikyam-Lab/Synoptic-Bench huggingface dataset:
The low/trough had nudged/expanded into the western Dakotas border early this morning. The stronger portion of the trough/low is forecast to lift northeastward from southern Alberta across Saskatchewan. The southern extent of the trough is progged to move east across the Dakotas today and tonight.
633 AM EDT Fri Jun 2 2017 Moisture ahead of a weak trough will remain mainly south and east of the forecast area through Saturday.
443 AM EDT Fri Jun 2 2017 Moisture ahead of a weak trough will remain mainly south and east of the forecast area through Saturday.
Overnight temperatures will drop into the lower 70s along the Gulf coast and interior with temps in the upper 70s along the east coast. This will cause our high temps to be a little cooler in the mid 80s, instead of the 90+ degree days we have been seeing. With the higher moisture content, more coverage over the Atlantic will increase chances of showers and storms along the east coast as storms move onshore, especially in the overnight and morning hours.
WV imagery clearly shows an upper low moving east across northern Mexico this morning. With the upper low still well to our west, the better coverage of diurnally driven showers and storms should stay to our south and west today.
650 AM EDT Fri Jun 2 2017 High pressure centered over the Western Lakes will build over the area today and linger into Saturday.
406 AM EDT Fri Jun 2 2017 High pressure will maintain benign weather through Saturday.
448 AM MDT Fri Jun 2 2017 Upper ridge axis is now moving across the central Dakotas with southwest flow developing over the CWA. Broad low amplitude ridging will move into the region Saturday with dry weather and highs in the 80s.
255 AM EDT Fri Jun 2 2017 Moisture ahead of a weak trough will remain mainly south and east of the forecast area through Saturday.
An upper level ridge will build in across the plains today.
618 AM EDT Fri Jun 2 2017 High pressure will continue to cause fair weather across our area today and tonight.
120 AM EDT Fri Jun 2 2017 Weak high pressure will build in behind a cold front as it shifts south and east and dissipates through Saturday with isolated showers and slightly above average temperatures.
An upper level low will move through New England as weak high pressure builds over the southeast today.
High pressure should bring drier weather for Friday and Saturday.
115 AM EDT Fri Jun 2 2017 Aviation High pressure will continue to bring fair and seasonably mild weather through Friday. A low pressure system will bring showers and a few thunderstorms this weekend. High pressure will continue to bring fair wx tonight through Friday. Low pressure and a warm front will combine to bring potential for a few showers and possibly an isolated thunderstorm Saturday afternoon.
336 AM EDT Fri Jun 2 2017 High pressure centered over the Western Lakes will build over the area today and linger into Saturday.
653 AM EDT Fri Jun 2 2017 High pressure moving slowly across the Ohio Valley will provide dry weather today through Saturday.
Temperatures will continue to be on the warm side, in the lower 70s. In the upper levels slight ridging will be in place. In the overnight hours POPs will be 20 to 40 percent with the highest POPs near the coast.
Aloft, a split flow was note across much of the lower-48. An upper low persisting across western Texas was sending high clouds (primarily blow-off from convection) eastward across this forecast area.
A mid and upper level troughing pattern will maintain westerly flow aloft while the axis of the subtropical ridge remains over the area and keeps low-level winds relatively light. Temps should remain warmer than average overnight with a continued sultry airmass and high cloud cover over the area.
Cold front has pushed east thru Miles City but has not yet reached the Dakotas border as of 245 am. Quiet weather will persist thru the remainder of the short term period (Sat night) as the upper level ridge builds back over the region.
300 AM CDT Fri Jun 2 2017 Dry air mass will remain in place across the eastern CWA today, on the fringes of the high pressure to our east. Dew points likely to dip into at least the mid 40s from about Bloomington-Paris, before creeping upward late afternoon as the high edges eastward. With time, the threat for any convection will shift northeast, as the upper ridge gradually builds toward the Mississippi Valley.
338 AM MDT Fri Jun 2 2017 Mostly clear skies prevail today and Saturday, as high pressure strengthens over the region. Temperatures trend warmer through the weekend.
300 AM EDT Fri Jun 2 2017 High pressure today for bright and sunny skies. A warm front crosses Saturday.
This feature will help to induce scattered convection as we heat up into the lower to mid 80s this afternoon but can't really justify anything more than 50 pops based on the lack of a defined surface feature as an inverted trough will remain to our south closer to the coast. The weekend continues to trend wet as more broad troughing slowly advances east from the desert southwest.
High pressure will build in by later today which will bring drier conditions. The next system late Friday night and Saturday will increase the onshore flow and clouds on Saturday in our area, with perhaps some spotty sprinkles along the coast and over the higher terrain.
344 AM MDT Fri Jun 2 2017 Upper ridge axis is now moving across the central Dakotas with southwest flow developing over the CWA. Broad low amplitude ridging will move into the region Saturday with dry weather and highs in the 80s.
High pressure will bring a string warm temperatures with highs reaching near 90 degrees this weekend.
A closed upper low over Quebec and associated troughing extends southwest over the Great Lakes region. A little closer to home, weak upper ridging extends from Cuba northwest over the Florida peninsula. The location of the west and east coast sea breeze collisions over the interior counties will see the highest chances of strong storms and heavy downpours.
115 AM EDT Fri Jun 2 2017 High pressure will maintain benign weather through Saturday.
313 AM CDT Fri Jun 2 2017 Two weak upper level troughs will have an impact on high plains weather over the next couple of days.
305 AM EDT Fri Jun 2 2017 High pressure will continue to cause fair weather across our area today and tonight.
235 AM CDT Fri Jun 2 2017 Early this morning, high pressure was located over the middle of Lake Michigan. Temperatures ranged from the low 50s to the low 60s this morning. Weak flow will keep the high pressure near the area and will be the primary driver of the short term period.
Current thinking is that the lowered ceilings will spread across the E OK terminals for at least a portion of the next few hours. WV imagery clearly shows an upper low moving east across northern Mexico this morning. With the upper low still well to our west, the better coverage of diurnally driven showers and storms should stay to our south and west today.
Today will be a pretty dry day with a mix of sun and clouds behind an exiting cold front. Temperatures will hover around near normal readings in the lower to mid 70s. A high pressure ridge really builds into the region quickly on Saturday with well above normal temperatures in the upper 80s.
Broad l/w trough over the eastern seaboard will continue to gradually drift east Friday and Friday night. Temperatures will continue to be above average, with high temps Friday mid-upper 80s, with overnight temperatures in the low-mid 60s Friday night. Weak high pressure and continued dry NW flow aloft will result in another dry day with seasonable to slightly above normal temperatures across central NC on Saturday.
354 AM EDT Fri Jun 2 2017 High pressure moving slowly across the Ohio Valley will provide dry weather today through Saturday.
417 AM CDT Fri Jun 2 2017 (Today and Tonight) Latest water vapor imagery shows an upper low over northern Mexico early this morning and this system will approach West Central Texas later today. Highs today will be mainly in the lower 80s, with lows tonight in the 60s.
Otherwise, temperatures will be close to normal to a bit cooler due to the clouds and rain chances.
521 AM CDT Fri Jun 2 2017 Dry air mass will remain in place across the eastern CWA today, on the fringes of the high pressure to our east. Dew points likely to dip into at least the mid 40s from about Bloomington-Paris, before creeping upward late afternoon as the high edges eastward. With time, the threat for any convection will shift northeast, as the upper ridge gradually builds toward the Mississippi Valley.
237 AM MDT Fri Jun 2 2017 Upper trough currently seen on WV imagery over eastern ID into western UT will progress very slowly eastward and be located roughly along the Laramie Range by noon today. Upper trough will kick out of the area by late tonight and give way to building ridging aloft for the weekend.
552 AM EDT Fri Jun 2 2017 High pressure centered over the Western Lakes will build over the area today and linger into Saturday.
High pressure will slowly move away today. 925 mb temps will warm to 20C which will yield high temps in the lower 80s over much of srn WI. For tnt, a warm front will approach with warm advection most focused around 850 mb on a 25 kt wly LLJ.
308 AM CDT Fri Jun 2 2017 Early morning satellite imagery shows upper ridging building over the Northern and Central Plains while sharp troughing continues over the High Plains and just to the west of the ridge. Temperatures should top out in the upper 80s for most areas under the upper ridge. Sharp upper trough currently over the High Plains will move east into western Nebraska later tonight. This will continue to de- amplify as it moves across Nebraska along with a weak cold front. Meanwhile, upper level ridging will be amplifying over the Rockies while a closed low drops south out of Manitoba and passes just to the east of the area. Upper heights will build overhead into the early part of the week as the upper ridge slowly shifts east across the Central Plains.
The overall synoptic pattern features the surface anticyclone center migrating to the east/along and up the Ohio river valley today, to around Cincy by 00Z Sat.
307 AM CDT Fri Jun 2 2017 Early this morning, a mid-level ridge was located over the central US with a surface boundary northeast of the area extending from Montana through northern Missouri. Due to this ridging, dry conditions are expected both today and tonight. The mid-level ridge continues to make its way eastward tonight ahead of an approaching upper trough. Trailing energy is forecast to extend southwest into Kansas while a weak front and pre frontal trough approach the forecast area by late in the day.
Temperatures at 2 am were generally in the lower to middle 70s with dew points only lagging that by a degree or two. No large scale impulses expected to affect the area over the weekend, but with deep moisture in place, expect daily development of scattered to numerous showers and thunderstorms as convective temperatures in the lower and middle 80s are reached. Of course, with the high moisture levels, some locations will receive heavy rainfall totals.
Slight warming is forecast for Friday as high pressure strengthens over California and onshore flow weakens. An approaching low pressure trough will bring slightly cooler weather to the area over the weekend.
Meanwhile, weak high pressure aloft will prevail over the region this afternoon through Saturday.
A broad, steep, and stagnant upper ridge centered over the western Plains will continue to slowly build eastward into the ArkLaMiss as the day continues resulting in 500 mb heights increasing to around 593dm. Moisture will begin to increase overnight ahead of an approaching cold front.
626 AM EDT Thu Jul 27 2017 High pressure will briefly build over the area on today.
850 mb jet streak will remain active south of the low which will be across central MO towards sunrise. We are expecting the highest QPF early this morning across central MO where a widespread 1 to 1. The cloud cover and rainfall will put an end to the extreme heat we have had for the past couple of weeks with highs from the low 80s in the northeast to low 90s southwest. It will also be cooler as we remain in a northwest flow aloft with a trough axis across the eastern U. Will gradually see a shift in wind direction to the west and eventually the north as a cold front pushes through.
Multi-Day Reprieve from Summer Heat and Oppressive Humidity has Arrived with Daytime Temps Fcst to Average Slightly Cooler Aloft: Overnight AMDAR (aircraft) winds and WV imagery showed a subtropical high over the TX Panhandle and it encompassed the center of the CONUS. Trofs were along both coasts. the high will gradually advance into the GtLakes. A great night for opening up the windows with lows in the low-mid 60s. Cooler temperatures than what were seen the past few weeks and 2. This helps to keep temperatures slightly cooler. any small disturbance (and there are a number of them) that drops down across the area as it moves into the trough over the East could help to fire off showers or thunderstorms.
400 AM PDT Thu Jul 27 2017 Seasonal summer weather through Friday with high pressure over the Southwest.
155 AM EDT Thu Jul 27 2017 A cold front across the central Great Lakes will drop southeast across the region on Thursday as low pressure moves through the lower Ohio Valley. The low will move through the Virginias on Friday as high pressure builds into the region from the northwest. High pressure will linger through the weekend. Tonight moisture will continue to increase from the north and west as a cold front moves toward the area from the northwest and low pressure approaches the lower Ohio Valley from the west. Thursday models bring the cold front into the area from the northwest while the low moves in from the west. This weekend will be dry with temps a little below normal as a large area of Canadian high pressure moves over the area.
1215 AM CDT Thu Jul 27 2017 Widespread cloud cover and scattered showers have persisted through the day likely in response to a mid/upper trough which is currently pushing through the area this hour. The axis of this trough appears to be over central Iowa and north central and will continue to move east with time. Once these storms move out of the area and the boundary sags south cooler conditions will persist through the rest of the week and the weekend.
Weak upper trough over norcal now shifting into the Great Basin leaving fair skies across the CWA this morning. Upper ridge over southwest U.
Surface wise, a decaying and broad western Atlantic ridge spreads across the Sunshine State and it extends into the eastern Gulf of Mexico. Despite an upper level low above 300 mb lingering near our region, a decoupled a light, albeit broad anticyclonic flow will persist through most of the time frame. Ample and strong insolation will allow high temperatures to climb into the lower 90s with overnight lows ranging between 80 and 85 degrees. With the mid and upper level trough lifting northward early, low and mid level ridging will predominate across our area. High temperatures will average in the lower 90s with lows generally in the lower to mid 80s.
312 AM CDT Thu Jul 27 2017 For this afternoon and evening, a vigorous short wave trough, currently located over southern Manitoba, will move southeast across northern and eastern Wisconsin.
The highest concentration of convective activity will still remain generally south of a line from MacDonald Pass to Skalkaho Pass to Lowell, ID.
We expect less afternoon/evening TSRA than what we've observed the past few days, with the highest PoPs at KVLD mid to late afternoon. Low/mid level low pressure resulted in shower and thunderstorm development in convergent flow this afternoon. Lows will once again fall into the lower to middle 70s. The weak upper low over the southeast will continue to influence rain chances for Thursday. PoPs will be in the 30-50% range with the highest in south Georgia and the Big Bend. By Friday upper level flow becomes more zonal ahead of the approaching trough. Highs will be in the lower 90s with warmer temps to the west where rain chances are lower.
149 AM EDT Thu Jul 27 2017 High pressure moves off the mid-Atlantic coast through Thursday.
Through out the day today we can expect scattered showers and storms to increase in coverage as a cold front approaches from the north. The most widespread rain is anticipated tonight and Friday, as the cold front moves slowly across the region. Due to the high moisture content of the atmosphere, and the presence of the front, locally heavy rainfall will be possible at times, especially with stronger thunderstorms, or anywhere that multiple storms move repeatedly across the same locations. Especially with the highly sensitive basins in the southeast a few minor flooding problems are not out of the question.
157 AM EDT Thu Jul 27 2017 Low pressure and a cold front will approach the region on Thursday and push through Thursday night into Friday morning, bringing showers with embedded thunderstorms. High pressure will gradually build in for the weekend. Ample cloud cover and precipitation will limit highs on Thursday so continued to lean on the cooler side of guidance. Highly amplified mid/upper level flow pattern with ridge over the west and trof over the east. This high will offer dry conditions and seasonably cool temperatures.
For the next several days we will be on the eastern periphery of mid- upper high heights center to our west.
The upper ridge of high pressure will begin to dampen over the area today as a cold front starts its approach. This should allow for very slightly cooler temperatures. though the high dew points and humid conditions will persist. the chance of convection will increase towards morning as the cold front continues to approach the area.
356 AM EDT Thu Jul 27 2017 Surface cold front crosses our region today bringing scattered showers and embedded thunderstorms today. Cold air advection behind departing cold front will keep temperatures a bit on the mild side for Friday with max temps only in the mid 70s. We'll be locked in with light cold air advection and high pressure building into the North Country.
345 AM CDT Thu Jul 27 2017 Very heavy rain is tracking across extreme eastern KS into western MO this morning where a rather strong low-level jet has been feeding copious amounts of moisture into a cold front that is slowly making its way southward. Cold front will continue making its way southward into the Ozarks tonight while a large area of high pressure builds into the Upper Midwest.
410 AM CDT Thu Jul 27 2017 Early morning sfc analysis shows high pressure centered over the nrn Gulf, maintaining a light mostly srly low-level flow across the region. Water vapor imagery shows ridging aloft remaining in place from the Desert SW to the srn Plains and Arklatex. Today and Friday continue to look dry but warmer as the ridging aloft holds over the srn Plains. Combined with dewpoints in the lower/mid 70s, expect heat index values to approach but stay just below the 108F advisory criteria. A digging trof over the ern CONUS is expected to break down the ridge as we move through Friday and into the weekend. Increasing moisture through the column will work in combo with the approaching frontal boundary and troffing aloft, allowing for increasing rain chances beginning Friday night across the nern zones.
Storms will develop first across the higher terrain with the steering flow generally taking storms to the north and east. The presence of an inverted trough to the south will turn the flow aloft to the southeast over the weekend.
Through out the day today we can expect scattered showers and storms to increase in coverage as a cold front approaches from the north. The most widespread rain is anticipated tonight and Friday, as the cold front moves slowly across the region. Due to the high moisture content of the atmosphere, and the presence of the front, locally heavy rainfall will be possible at times, especially with stronger thunderstorms, or anywhere that multiple storms move repeatedly across the same locations. An upper level low will be cutting off as it moves from the Great Lakes/Ohio Valley into the mid-Atlantic by this weekend, while ridging rules across the West. Showers and thunderstorms will likely be ongoing Friday evening, as a surface cold front sags southeast across the area.
S to SE winds 5 to 15 KTs will prevail with gusts up to 30 KTs with the highest speeds and gusts in the afternoon and evening hours. The latest water vapor satellite loop shows an upper low over central Mexico this afternoon. This low will continue to retrograde westward across Mexico this evening. To the east of this upper low, deep layer southeasterly flow will help usher some deeper moisture into portions of south central Texas.
Today Through Friday Night The change to a cooler, less-miserable pattern begins in the next 24 hours.
Will see another round of redevelopment tomorrow afternoon as the main area of moisture and the trough does not move much over the next 24 hours. 01 Extended models continue to advertise strong cold front expected to move into north Georgia late Friday afternoon/evening.
However we will monitor radar trends should any move off the higher terrain.
Showers and thunderstorms are expected to form again Thursday afternoon and early evening, mainly near a cold front that will be crossing Oklahoma. Outflow from showers/thunderstorms may outpace the trough overnight, depending on whether storms can become organized or not. A cold front will push slowly across northern and central Oklahoma tonight through Thursday afternoon. The front will continue to move south Thursday night into Friday as a trough moves across the Upper Midwest and Great Lakes. The cold front will generally lower temperatures to near or slightly below average for the weekend, with better rain and storm chances across western Oklahoma.
Remnants of the closed low pressure system that has been nearly stationary over northern California has evolved into an open wave and is moving into NW Nevada this morning.
A mid-season cold front, subjectively analyzed from northern Missouri, to southwest Kansas will approach northern portions of the state late Thursday afternoon.
Multi-Day Reprieve from Summer Heat and Oppressive Humidity has Arrived with Daytime Temps Fcst to Average Slightly Cooler Aloft: Overnight AMDAR (aircraft) and WV imagery showed a subtropical high over the TX Panhandle and it encompassed the center of the CONUS. Trofs were along both coasts. the high will gradually advance into the GtLakes. A great night for opening up the windows with lows in the low-mid 60s. Cooler temperatures than what were seen the past few weeks and 2. This helps to keep temperatures slightly cooler. any small disturbance (and there are a number of them) that drops down across the area as it moves into the trough over the East could help to fire off showers or thunderstorms.
WV imagery indicates moisture advecting northward into Arizona from Sonora, Mexico with high pressure located over central New Mexico. We'll have to watch for embedded vorticity maxima circulating around the southern periphery of high pressure and into Arizona which will help to better determine the location and timing of enhanced convection.
434 AM EDT Thu Jul 27 2017 A cold front will sag southward across the region as low pressure moves eastward across the lower Ohio Valley.
311 AM EDT Thu Jul 27 2017 Surface cold front crosses our region today bringing scattered showers and embedded thunderstorms today. Cold air advection behind departing cold front will keep temperatures a bit on the mild side for Friday with max temps only in the mid 70s.
Friday will have areas of morning clouds then afternoon sun and warmer temperatures. The weekend will have sunny skies and warmer temperatures. Areas that have clouds in the lowlands should see clearing through evening and then the clouds will redevelop overnight--but Friday will see the clouds break out faster and it will be warmer.
309 AM CDT Thu Jul 27 2017 Early morning elevated convection northwest, portions of north central, and south central is the highlight in the near term period.