Aikyam-Lab/Synoptic-Bench huggingface dataset:
106 PM EDT Tue Jul 18 2017 High pressure will keep conditions quiet through the rest of this afternoon and tonight. Transition to mid-week warm-up underway as upper ridge begins to expand eastward into the region. Renewed Pacific energy coming onshore into northern California on Tuesday will ride up top of plains ridge and provide ingredients for replay of convection igniting in the northern plains/upper MS valley again on Wednesday. Models indicating even more enhanced forcing as short wave disturbance riding along upper ridge will have 60-70kts of mid-level flow. Very warm and muggy Wed-Fri with highs 85-90 and dewpoints in the lower 70s. Upper low in eastern Pacific just off British Columbia coast will come onshore as Aleutian low drops south.
127 PM EDT Tue Jul 18 2017 High pressure will push towards the eastern Great Lakes region through the early evening bringing a continuation of quiet aviation conditions. Light southerly winds will continue across the area before the next cold front approaches early Wednesday. Nearly zonal flow will try to amplify with ridge continuing to build across the southern states, but strong waves in the energetic jet stream across the north will continue to flatten the ridge until the end of the week. In the mean time, a strong trough rotating around the northern Canada low will phase with the already enhanced jet over Ontario eventually sending a cold front through lower MI Wednesday and Wednesday night. Persistent westerly flow will continue to pump warm and moist air in from the Midwest and the strong ridge nosing up into that region.
Thermodynamically, the air mass is easily supportive for convection to persist into the lower deserts later this afternoon and evening. The environment will remain favorable for thunderstorm development throughout the remainder of the week as the predominant midlevel anticyclone remains situated over the Southern Plains.
Seasonal inland temperatures during the work week will gradually increase for the weekend as high pressure builds over northern California. Little has changed in the larger scale weather pattern with broad ridging across the central United States and an upper trough sagging over the northeastern Pacific Ocean. 500 mb heights will rise over the weekend as high pressure builds over northern California. A thermal trough should develop on the surface in response to the warming across the interior.
300 PM EDT Tue Jul 18 2017 An upper air trough across the region will keep isolated showers and thunderstorms around the area through Wednesday. High pressure gradually builds toward the Mid Atlantic for the middle and later portion of the week, bringing a return to hot and humid conditions. Otherwise, a quiet night with clearing as the upper trough slowly moves east.
The NAM latched onto this a few days ago and this feature should continue to rotate around the low into Southern Utah over the next 24 to 36 hours. It appears this will could get entrained into our SE CWA as early as tomorrow afternoon and leave a narrow band of the highest PWAT over the northern half of the CWA.
251 PM CDT Tue Jul 18 2017 Upper ridge will build over the area the next couple of days and likewise the heat.
408 PM EDT Tue Jul 18 2017 High pressure over the western Atlantic and extending into the region remains through the end of the week. High pressure builds into the area through the end of the week.
557 PM EDT Tue Jul 18 2017 Weak high pressure will build over the region tonight. A cold front will approach from the northwest on Wednesday and will drop south through the region Wednesday night.
143 PM EDT Tue Jul 18 2017 Upper ridge dominates the work week, increasing heat and humidity.
308 PM EDT Tue Jul 18 2017 High pressure will remain in control through Wednesday morning. A weak area of low pressure will move east across the Southern Great Lakes Wednesday into Wednesday night, forcing a weak cold front southeast across the area.
Across the region temperatures are generally within a degree or two from the readings yesterday though right along the coast they are trending warmer by three to six degrees. This is ahead of the monsoonal moisture that is also shifting westward as the upper high pressure stretches back toward the four corners region. A few degrees cooler in some locations and a few degrees cooler elsewhere but the overall trend will be static through the end of the week. The increase moisture in the air will make conditions less comfortable though and it may feel warmer to some especially those with outdoor activities. There will be a weak eddy toward morning and that should keep the low clouds pushed up against Santa Barbara County into tomorrow afternoon.
302 PM EDT Tue Jul 18 2017 High pressure will continue to provide mainly dry and clear conditions into tonight.
252 PM EDT Tue Jul 18 2017 Weak high pressure will build over the region tonight. A cold front will approach from the northwest on Wednesday and will drop south through the region Wednesday night.
A strong ridge of high pressure will bring the hottest temperatures of the summer season late week and weekend, and heat advisories and even warnings may be needed. A mid/upper low across central NC has already displaced the deepest band of moisture farther offshore per water vapor imagery. The mid/upper low will slowly meander across eastern NC over the next 12-36 hours and bring a drier column to the forecast area. However, even warmer temperatures are expected beyond the near term period as the focus shifts from heavy rain producing convection to heat index concerns.
301 PM CDT Tue Jul 18 2017 Hot and humid conditions will continue for the next several days as high pressure aloft remains in control of the overall weather pattern.
338 PM CDT Tue Jul 18 2017 Typical summertime conditions continue this afternoon as the ridge of high pressure across the Southern Plains controls our sensible weather through the rest of the week and into the weekend. The upper level ridge, currently centered over Kansas, is the reason for a large area of heat related watches, advisories and warnings across the Central Plains and Midwest. As the ridge expands and shifts southeast the next couple of days, conditions will only get warmer. The highest concentration of moisture will remain to our southeast, leaving North and Central Texas hot with no precipitation chances.
513 AM EST Tue Feb 13 2018 High pressure will build across the region today then exit to the east Wednesday.
926 AM EST Tue Feb 13 2018 High pressure builds across the area today and then passes east tonight into Wednesday.
1025 AM EST Tue Feb 13 2018 Weak frontal boundary over N FL in the process of being the bridged by an H100-H70 anticyclone over the Carolinas/Deep South and the Atlc ridge axis centered just south of Bermuda. Moisture pooling within the frontal trof has saturated the airmass up to H60 per the KJAX 12Z RAOB with lyr PWat values arnd 1. Higher cloud cover today along with an early sea breeze formation will keep temps a few deg cooler than recent days. High moisture pooling within the frontal trof will combine with the light winds and cool shelf waters to generate a pocket of dense fog thru early aftn.
The upper level low pressure system over the California coast will drift offshore today.
802 AM EST Tue Feb 13 2018 High pressure will build across the region today then exit to the east Wednesday.
708 AM EST Tue Feb 13 2018 High pressure will be centered overhead today. Temperatures will warm up Wednesday as the high moves to the east.
909 AM EST Tue Feb 13 2018 High pressure will build across the region today then exit to the east Wednesday.
These low clouds will likely spread into at least the eastern zones later this morning, with some question remaining how far west the low clouds can expand. Regardless, the stratus should scatter/clear from west to east later in the day, though it could suppress heating somewhat off the Caprock where temperatures may not make it out of the lower to middle 50s. On the other side of the CWA, plenty of filtered sun along with drier downslope flow will propel highs into the lower and middle 60s near the TX/NM line. Increased moisture tonight will help secure milder temperatures, with a risk of patchy fog development out east where the low-level flow is last to veer. Attention will then turn to the upper level low currently spinning southward through central California.
742 AM EST Tue Feb 13 2018 High pressure builds across the area today and then passes east tonight into Wednesday.
Otherwise, skies will begin to clear and rain chances will end as the old coastal trough/warm front lifts northward through the CWA. Will lean towards the warmer MAV/ECMWF MOS as the NAM is slow to catch up on the warmer onshore flow. High temperatures Wednesday will range from the lower 70s at the beaches to the mid to upper 70s inland.
633 AM EST Tue Feb 13 2018 High pressure cresting over the Northeast this afternoon will be the controlling weather feature across the North Country through Wednesday with plentiful sunshine and seasonal to above normal temperatures.
A coastal trough offshore the lower Texas coast will continue to provide overrunning conditions across the area for today and tonight. Otherwise, skies will begin to clear and rain chances will end as the old coastal trough/warm front lifts northward through the CWA. Will lean towards the warmer MAV/ECMWF MOS as the NAM is slow to catch up on the warmer onshore flow. High temperatures Wednesday will range from the lower 70s at the beaches to the mid to upper 70s inland.
This is currently and will continue to build a ridge of high pressure along the leeward side of Appalachians. Weak wedge will continue with high pressure building more into the area from the northeast overnight tonight and Wednesday. a ridge will build into the Gulf. Given the influence of lower level ridging. Kovacik Strong high pressure will hold over the Gulf of Mexico through this weekend keeping a moisture connection from the Pacific and across Mexico and into the southern U.
535 AM EST Tue Feb 13 2018 High pressure will provide fair weather today into tonight.
Upper low dropping into southern California with high pressure pushing in over the north state. An inside slider type trough is forecast to drop through the Pacific Northwest and northeast California on Wednesday. As the upper trough digs to the southeast Wednesday night, this precipitation threat will shift southward into the northern Sierra.
Increasing winds and the warmer temps will raise fire weather concerns with relatively high afternoon humidity values helping temper conditions.
Downslope flow develops under the ridge, and will help scour out the coldest air. Cold air is a bit more stubborn in the east, so areas east of Forsyth can expect cooler temps in the upper 20s and near 30 in these areas. A disturbance working into northeast CONUS flattens the ridge fairly quickly late this afternoon, and strong lee troffing develops quickly this evening along our mountain foothills and quickly increase the winds overnight. The disturbance will begin to impact northwestern and western zones by Wednesday evening, with cold front dropping quickly south through the evening. Any rain that does fall will cause issues, with potential to be freezing rain, or result in flash-freezing as cold air enters the region.
507 AM EST Tue Feb 13 2018 Dry weather is expected today under high pressure. A weak trough of low pressure should return rain chances Wednesday.
921 AM EST Tue Feb 13 2018 Broad high pressure centered over the lower Great Lakes and Ohio valley will drift to the east coast today. The high will continue to extend across the Carolinas and Georgia tonight and Wednesday as low pressure moves across Ontario.
544 AM EST Tue Feb 13 2018 Dry weather is expected today under high pressure. A weak trough of low pressure should return rain chances Wednesday.
1040 AM EST Tue Feb 13 2018 High pressure builds across the area today and then passes east tonight into Wednesday.
529 AM CST Tue Feb 13 2018 A weak vorticity lobe and associated area of showery precipitation (most of which is sublimating before reaching the ground) was moving through the mid-MO Valley early this morning, downstream from a prominent upper low situated over the Sierra-Nevada Range.
603 AM EST Tue Feb 13 2018 Broad high pressure centered over the lower Great Lakes and Ohio valley will drift to the east coast today. The high will continue to extend across the Carolinas and Georgia tonight and Wednesday as low pressure moves across Ontario.
348 AM PST Tue Feb 13 2018 A low pressure system off the Southern California coast will bring occasional mostly light showers through Wednesday.
This overall warm air advection swly sfc to upper level flow pattern will support warmer than normal temps during the next seven days also. Actually, Thu afternoon highs will be on average 20 to 25 degrees above normal, spanning the low to mid 70s, upper 60s Cumberland Plateau Region.
610 AM EST Tue Feb 13 2018 High pressure builds across the area today and then passes east tonight into Wednesday.
The High Res HRRR and RAP13 models bring low clouds into the PB in the next several hours. After any low clouds that move into the CWA burns off it will be warmer today with temps near normal (normal for MAF is 67).
625 AM EST Tue Feb 13 2018 Aviation High pressure will bring fair weather today and into Wednesday.
556 AM EST Tue Feb 13 2018 High pressure builds across the area today and then passes east tonight into Wednesday.
635 AM EST Tue Feb 13 2018 It will be cool and damp today and tonight just behind a cold front with high pressure ridging into the area from the north.
Temps of 10-20 degrees below zero reside across southwest Montana, vicinity of Butte, the Seeley/Swan valley and the Polebridge region.
Patchy freezing fog will be possible in valleys of northern Nevada through this morning.
530 AM CST Tue Feb 13 2018 Surface winds will shift to the south today and allow for temperatures to warm to slightly above normal levels with highs ranging from around 40 along the IA border to the low 50s in our south.
512 AM EST Tue Feb 13 2018 High pressure will be centered overhead today. Temperatures will warm up Wednesday as the high moves to the east.
655 AM EST Tue Feb 13 2018 High pressure will be in charge today, with a partly cloudy to mostly sunny sky, and near normal temperatures.
Chattanooga Airport, TN 56 47 59 56 / 30 40 90 90 Knoxville McGhee Tyson Airport, TN 56 47 60 54 / 30 40 90 80 Oak Ridge, TN 55 47 57 54 / 40 50 100 90 Tri Cities Airport, TN 54 43 59 51 / 30 40 100 100.
409 AM MST Tue Feb 13 2018 Upper trough this morning is extending from the northern Plains to central California. Warmer air is quickly pushing into the region this morning and will continue through the rest of the day. Wednesday will be warmer with highs in the 40s to low 50s.
Upper ridge will come through our CWA from the north late today with mostly clear skies continuing this evening. Clouds will increase from the north late tonight and temperatures will moderate as a cold front approaches from the Gulf of Alaska. The Lower Treasure Valley will get up to one inch, mainly on grassy surfaces.
653 AM EST Tue Feb 13 2018 Patchy and shallow fog will be possible for a couple hours around sunrise as calm wind associated with high pressure lingers during the morning. The high will drift farther east during the day resulting in a steadier southeast wind over the region. The week ahead will be characterized by the occasional shearing of energy from the southwest US closed low along the periphery of the broad, flat upper ridge anchored over the southeast US. Surface temps will likewise be on the warmer side of normal, particularly given emerging southwest return flow around this morning's departing Canadian high. Further upstream, the expanse of low clouds noted over TX/OK this morning will continue to lift toward the Lower Pensinula, arriving by late Wednesday.
Temperatures will warm well above normal reaching the mid to upper 70s north to the lower and middle 80s elsewhere. High pressure is forecast to settle over Florida during midweek and will remain in place through the weekend with light winds and seas 2 feet or less.
732 AM EST Tue Feb 13 2018 Dry weather is expected today under high pressure. A weak trough of low pressure should return rain chances Wednesday.
1043 AM EST Tue Feb 13 2018 Dry weather is expected today under high pressure. A weak trough of low pressure should return rain chances Wednesday.
544 AM EST Wed Nov 29 2017 A cold front moves across the area today, followed by high pressure through Thursday.
Between these two systems we should see clear to mostly clear skies, south southwest winds, and highs temperatures around 10 degrees above normal in the lower to mid 50s.
As clouds break up tonight, colder temperatures and a chance for freezing fog development are possible for the valleys into Thursday morning.
High pressure will continue to settle south into and through the region, setting the stage for a very nice day today. Winds will become easterly later today, and then southeasterly and eventually southerly this evening and tonight as high pressure moves through the region. Winds will become westerly with some gustiness tomorrow behind a cold front. High pressure will continue to build into the area early this morning, with current northwest winds becoming light and somewhat variable around daybreak. Winds will become more easterly and then southeasterly by afternoon as the high moves east of the area. Highs today should be in the low to mid 40s, with abundant sunshine.
A few isolated showers will be possible as a cold front moves through today, however, these will be spotty at best and very brief. /issued 433 AM CST Wed Nov 29 2017/ SHORT TERM (Today through Thursday): This morning the RGV is positioned between a modest upper level low traversing eastward along the I40 corridor and an upper level ridge centered across central Mexico. Temperatures will be a degree or two cooler this afternoon, however, not much of an air mass change.
/issued 258 AM CST Wed Nov 29 2017/ Wx map shows weak pressure gradient as the region lies between low pressure in the Plains and retreating high pressure over the Eastern U. An upper level disturbance over OK with the weak trough axis over E TX providing some lift to yield isolated to scattered streamer type showers over the TX/LA boarder and adjacent coastal waters this morning. A cool front will move through by Thursday afternoon, bringing back the drier and cooler more seasonal air to the region through the weekend.
Aside from the fog, a weak cold front ahead of a moist air mass will arrive Thursday evening resulting in rain along the coast and just a chance of rain in the valley.
1002 AM EST Wed Nov 29 2017 A cold front will bring a few rain showers or flurries to Northern NY through early afternoon. High pressure will return tonight with clearing skies and cooler temperatures. High pressure quickly builds overhead this evening. Look for temperatures in the lower to mid-20s early Thursday morning. High pressure will slide off the east coast on Thursday. Another cyclone will move through Canada and drag a frontal system toward NY and PA Thursday afternoon, spreading rain showers across the region. Dynamic cooling aloft combined with colder overnight temperatures should yield light snowfall Thursday night, especially over the high terrain.
/issued 351 AM EST Wed Nov 29 2017/ TODAY AND THURSDAY: Two weak upper level lows continue to affect the Florida peninsula this morning. The Gulf upper low is expected to dampen out while the northern low moves east into the Atlantic later today.
Winds will transition towards the west tonight in advance of another cold front. The high will quickly move east today and another cold front arrives in the CWA tomorrow though zonal flow will not be favorable for strong cold air advection, in fact temps are expected to continue to slowly climb tomorrow into the weekend despite this fropa.
Water Vapor imagery reveals an upper-level feature quickly pushing eastward across the northern Rockies, with a weak trough dragging in-tow through Wyoming. With no substantial mid or lower level moisture feed, this trough will pass by to the north relatively unnoticed today. The only appreciable impact will be a slight uptick in winds across the higher elevations along and north of I-70. Westerly flow will diminish this evening as both the trough and weak subtropical jet move east of the Continental Divide.
Models are also showing a secondary wave along with a cold front approaching GA on Thursday. 41 First portion of fcst period will have the influence of a rather elongated cold front and associated weak mid/upper disturbance pushing eastward across the area.
631 AM EST Wed Nov 29 2017 A cold front moves across the area today, followed by high pressure through Thursday.
As of 09Z Wednesday morning, a compact mid-level trough was traversing portions of the central and southern Plains.
558 AM CST Wed Nov 29 2017 Cold front will drop into the Ohio River Valley this morning, allowing a cooler airmass to settle into central Illinois. High temperatures will top out in the lower to middle 50s. A northern-stream wave will push a cold front into Illinois tonight, bringing clouds and perhaps a few light showers. to the lower 40s elsewhere.
While there will be a steady veering of the winds to the northeast by mid afternoon, wind speeds are expected to decrease below 6 knots as the high pressure slides overhead. Much cooler today as 925 mb temperatures drop by around 10-12C from the previous day where good mixing under southwesterly flow allowed temperatures to climb well into the 60s. Light winds will veer this afternoon into the evening from northerly to a more southeasterly direction as the high pressure drifts east of the state and the next trough nears the western Great Lakes late tonight. In addition, the trough is a little less amplified than previously advertised. Temperatures will hover around freezing in the morning but quickly rebound around the time the best precipitation chances begin to move in, which looks closer to the 12-15Z time frame at the moment.
853 AM EST Wed Nov 29 2017 Weak cold front passes today.
842 AM EST Wed Nov 29 2017 A cold front moves across the area today, followed by high pressure through Thursday.
Meanwhile a punch of strong westerly winds will follow a cold frontal passage across southwest North Dakota beginning mid morning. A cold front will push east across the state through the day bringing chances for rain along with strong westerly winds.
At the lower levels from 925-850 mbs easterly winds to 15-20 knots are expected which will advect low topped showers onshore.
/issued 252 AM CST Wed Nov 29 2017/ An upper level low pressure system currently located over Southeast Kansas and Northeast Oklahoma will move east today into the region as it weakens. The chances for light showers will spread to the entire Mid-South tonight into Thursday morning as a cold front moves into the area.
416 AM MST Wed Nov 29 2017 High pressure aloft and a dry airmass will prevail today. A weak surface lee trough will be in place this morning, causing gentle southwest winds and bringing warmer temperatures back to the I-25 corridor.
Northwest winds continue to pour a much cooler drier air mass into the region early this morning. The combination of a short wave trough sliding over the Northern Great Lakes region and the northwest flow, were producing lake clouds over the UP. The intrusion of dry air which poured into the area in the wake of Tuesdays cold front has significantly lowered the chance for precipitation tonight. Best Warm air advection arrives after midnight ahead of another short wave trough sliding over the Northern Great Lakes region, but mid levels saturation is brief. Clouds with the short wave trough and flow off lake superior may spread clouds over parts of northern wisconsin on Thursday, otherwise more sunshine with a warm start Thursday morning will produce max temps 5 to 10 degrees above normal.
1021 AM EST Wed Nov 29 2017 High pressure will weaken across the area today.
637 AM EST Wed Nov 29 2017 High pressure will weaken and drift east this morning.