Aikyam-Lab/Synoptic-Bench huggingface dataset:
702 AM CDT MON SEP 12 2016 A trough continues to dig over the northern Rockies this morning with a surface cold front located from northwest Minnesota to northwest Nebraska at 3 am. Temps will be several degrees cooler west with the earlier frontal passage and increasing clouds later this morning.
528 AM MDT MON SEP 12 2016 Splitting upper trough will bring increasing clouds all areas, with increasing chances for precip over the western third today. High center lift from the splitting northern stream trough will support a band of rain showers into the western third of the fa, initially in a waning fashion as it shifts east. Cooling profiles will support a mix of snow on some portions of the ne WY plains, with a trans to all snow expected in the higher elevations of the northern Black Hills, esp above 5. Trough and associated lift will exit the region Tues, with a few lingering rain showers possible across the far nw.
Dry high pressure centered over NY/PA extended into Mid TN early this morning with clear skies and temperatures in the 50s. Through daybreak, readings will dip into the low to mid 50s with patches of fog developing mainly over lakes and rivers. Humidity will remain tolerable with strong vertical mixing lowering dew points into the low to mid 50s in the afternoon. Upper level ridging will gradually strengthen. This will bring even warmer temperatures and a return to uncomfortable humidity levels. The upper level ridge will keep conditions mostly rain free, but there will be enough instability for the possibility of isolated thunderstorms.
Evening winds and seas will increase again today, but they will not quite reach the levels attained yesterday as the pressure gradient between the offshore high and inland thermal trough weakens.
606 AM CDT MON SEP 12 2016 Another very pleasant night across the Midwest as high pressure continues to dominate. The center of the high was located well to our east early this morning with the ridge axis centered right across central Illinois.
Dry conditions and warmer temperatures will prevail through the end of the new week. Overall temperatures were pleasant across southeast Arizona with 3 pm readings running 8 to 14 degrees cooler versus 24 hours ago.
Troughing over the northern part of Montana overnight shifts eastward on Monday and exits the state Monday night replace by a zonal flow.
338 PM MDT Sun Apr 9 2017 The upper low over eastern WY this afternoon will move into north central Nebraska by 12z Monday with a ridge of high pressure moving into the state on Monday. Have decided to cancel the high wind warning for zone 35, the winds will be strong there but expected to be less than 75 mph. Lower criteria gusts to 60 mph still a possibility for zone 38 so will continue with the high wind warning for this zone through the evening. High pressure and dry conditions will make for mostly sunny conditions on Monday.
544 PM EDT Sun Apr 9 2017 High pressure will bring clear skies overnight.
634 PM EDT Sun Apr 9 2017 High pressure will linger over the western Atlantic through early this week.
A deep-layer ridge will be in place across the eastern CONUS tonight.
A pacific trough will bring a weakening cold front into the north late week.
347 PM EDT Sun Apr 9 2017 Another dry day is expected on Monday with plenty of sunshine and even warmer temperatures with highs in the mid 60s to lower 70s.
Brief high pressure will provide a dry, cloudy, and cold night for the Northern Rockies, but the next weather system will be entering the region from the west early Monday.
A cold front will arrive Monday morning with north to northeast winds behind the boundary.
Sunny skies will continue this afternoon as upper level ridging builds across the region. Upper ridging will continue to build across the southeast states through tonight. Another dry day with low humidity is on tap with slightly warmer temps as the upper ridge builds. Increasing moisture levels will lead to warmer lows tonight than what have occurred the past few nights. Lows will fall into the low 50s inland to low 60s near the coast.
236 PM EDT Sun Apr 9 2017 High pressure will bring clear skies overnight.
340 PM EDT Sun Apr 9 2017 High pressure move off the coast of New England tonight allowing for warmer air to move over the region Monday. A cold front will sink south Monday night.
201 PM EDT Sun Apr 9 2017 High pressure will works its way off the Mid Atlantic coast through Monday night.
221 PM MST Sun Apr 9 2017 Cooler temperatures can be expected today in the wake of a weak cold front and low pressure system, with high temperatures in the upper 70s and lower 80s across the lower deserts.
312 PM CDT Sun Apr 9 2017 Water vapor imagery showing upper trough deepening over central Wyoming while a lead wave helped develop convection over northern Nebraska. Initial cold front making its way south across south central Nebraska with dryline moving east into southern Kansas and western Oklahoma. Better chances for storms look to be this evening into the early morning as cold front swings through eastern Kansas with most guidance leaning this way. Secondary cold front moves through Monday afternoon with a stronger shot of cold air following.
311 PM MDT Sun Apr 9 2017 Currently Mid level trough axis moving over the state of Colorado at 2 pm. A chilly night is anticipated with lows at or slightly below freezing across most of the plains with 20s in the valley sand tens in the mtns. Flat ridging aloft will move over the region.
The ESRL HRRR continues to forecast updraft helicity best near the triple point of the low/warm front and trailing boundary.
322 PM CDT Sun Apr 9 2017 Main concern this afternoon is with the highly conditional severe weather potential later this afternoon and into the early evening across parts of northeast Oklahoma. After midnight, shower and thunderstorm coverage should increase as the low level jet increases across the region and the cold front catches up with the dryline.
Meanwhile, the low level ridge remains intact just east of the mid- Atlantic coastline. Temperatures have reached near 80 across the island chain and dewpoints have recovered into the lower 60s. These rising heights are in the wake of a southeastward moving upper level low complex mostly centered east of FLorida. The high pressure system will broaden and intensify across the Western North Atlantic within a regime of favorable upper level support from the progressive upper level ridge.
209 PM EDT Sun Apr 9 2017 Warm and dry conditions are expected through the start of the week under high pressure.
329 PM EDT Sun Apr 9 2017 Southerly flow under high pressure aloft will maintain warm and dry weather for the start of the new week. No major alterations were needed for the near term period as warm advection will intensify with the tightening pressure gradient between Plains-to-Western Lakes low pressure and Western Atlantic high.
140 PM EDT Sun Apr 9 2017 High pressure will be situated east of the region allowing for southwesterly flow and warm conditions today and Monday.
MVFR ceilings expected to develop across the region after 10/10Z, persisting through the remainder of the terminal forecast period ahead of a cold front. Stronger southerly winds are expected to help mix out some of these lower clouds along the I-30 corridor, but temperatures are running several degrees cooler due to the thicker morning clouds.
441 PM EDT Sun Apr 9 2017 High pressure continues to retreat to our southwest with return flow on the back side continuing to strengthen across the Ohio river valley. Thus, the elevated fire danger will continue through the early evening hours with the stronger south winds and the low relative humidity. The dry air will lead to some decent ridge valley splits in our sheltered eastern counties tonight. We may be able to squeeze out a few upper 30s tonight in these locations while staying in the low 50s on the ridges. While they will be slightly higher tomorrow, temperatures will also be warmer. Morgan has some higher ridges susceptible to the stronger winds.
117 PM EDT Sun Apr 9 2017 Warm and dry conditions are expected through the start of the week under high pressure.
120 PM MDT Sun Apr 9 2017 Afternoon surface analysis over the western CONUS reveals low pressure departing the region through the high plains, while high pressure settles in from the Great Basin. Near-term forecast soundings indicate this lingering moisture in the lowest 5000 feet or so of the atmosphere this afternoon. These two factors have helped sustain the lingering precipitation in the higher terrain. clearing skies, light winds, and dry air in the low levels will result in a rapid drop off of temperatures in the valleys. Freeze Advisory remains in effect for Monday morning and min temperatures have been nudged slightly lower in line with slightly cooler guidance today (especially the MAV).
Weak troughing off the coast expected to dissipate, but more slowly next 12-24 hrs than previously thought. mid level ridging will build over the region this aftn/evening then shift nwd tonight. the day may start out in similar fashion with near-shore trough but should be weaker owing to weak temperature gradient. Stacked high pressure system will be northeast of the area providing for east to southeast low to mid level flow resulting in continued warming trend for the region.
406 PM CDT Sun Apr 9 2017 A tightening pressure gradient well ahead of a cold front out over the Plains has resulted in very breezy conditions across much of the region. Additional moisture return overnight will allow clouds to increase in earnest after midnight as warm air advection ramps up ahead of the approaching cold front. Lows are only expected to fall into the lower to mid 60s across the vast majority of the region with a few upper 50s over our far east. A few showers and a stray thunderstorm will also be possible over our far northwest zones north of I-30 as lift increases ahead of the front with associated upper trough pivoting across the middle Red River valley.
Onshore winds are continuing to draw moisture in across SE TX mainly at the lower levels but not noticing much increase with the mid/upper levels (per 12Z sound- ings). Gusty winds should also prevail the rest of the afternoon given the 20-25kt south winds through the lower 5K ft of the air mass.
320 PM EDT Sun Apr 9 2017 Mild and windy weather will continue through tomorrow as a low pressure system slowly moves from the upper Midwest into the Great Lakes region. The cold front associated with the low pressure system will begin to move in Monday night.
But will have to watch locations further north through the overnight hours as we await the development of scat- tered storms along/ahead of this next cold front. The best lift still looks to remain well N/NW of the region as the southern push of the front itself will be minimal by the time it moves into Cent- ral TX (as the associated upper low goes quickly off to the NE) Highest POPS will be across the NW counties Mon afternoon, then spreading into most of the rest of the CWA on Tues (likely from outflows and aided by daytime heating). Despite the upper ridge trying to build back over the area, did keep low POPS in for the rest of the week given the possibility of isolated afternoon activity along the seabreeze.
231 PM EDT Sun Apr 9 2017 A high pressure system will continue the dry weather through Monday.
636 PM EDT Sun Apr 9 2017 High pressure move off the coast of New England tonight allowing for warmer air to move over the region Monday. A cold front will sink south Monday night.
340 PM EDT Sun Apr 9 2017 High pressure continues to retreat to our southwest with return flow on the back side continuing to strengthen across the Ohio river valley. Thus, the elevated fire danger will continue through the early evening hours with the stronger south winds and the low relative humidity. The dry air will lead to some decent ridge valley splits in our sheltered eastern counties tonight. We may be able to squeeze out a few upper 30s tonight in these locations while staying in the low 50s on the ridges. While they will be slightly higher tomorrow, temperatures will also be warmer. Morgan has some higher ridges susceptible to the stronger winds.
257 PM EDT Sun Apr 9 2017 High pressure will bring clear skies overnight.
333 PM EDT Sun Apr 9 2017 High pressure move off the coast of New England tonight allowing for warmer air to move over the region Monday. A cold front will sink south Monday night.
350 PM CDT Sun Apr 9 2017 High pres is currently centered over the Carolina coast ridging southwest acrs the Gulf coast, while lower pres over the central plains extends southwest into western TX. The latest UA analysis and WV imagery shows ridging and drier air aloft helping to keep dry weather in place. Lows tonight are expected to fall to the upper 50s acrs central LA, trending warmer to the south and west with lows only reaching the middle 60s acrs southeast TX.
312 PM EDT Sun Apr 9 2017 Low pressure over the Central Plains will move into the Central Great lakes Monday.
Additionally, a leading PV anomaly, noted ahead of the trough, may also help initiate storms as it brings a little cool air advecting in aloft to weaken the cap. Otherwise, expect the strong and gusty winds to persist into the eveing hours head of the cold front that will move through, which will veer winds around to the west for Monday morning.
145 PM EDT Sun Apr 9 2017 A ridge of high pressure over the area will move to the Appalachian Mountains today.
250 PM CDT Sun Apr 9 2017 A high pressure ridge has shifted east of the region off the east coast. Temperatures have responded in kind, with readings now in the lower to middle 70s at 18Z.
346 PM CDT Sun Apr 9 2017 Closed low at H5 over central Wyoming mountains with trough extending to the northwest through central Montana as seen in satellite and radar. Weak ridge to the west behind this low will be sharpened by low over the northeast Pacific as it progreses into the Pacific Northwest. Large ridge over the eastern CONUS. along an inverted trough axis. Accumulations tonight over the Pine ridge around 2 inches from there to Cody or Valentine. Strong winds to develop with surface gradient tightening as upper level low moves into the northern Nebraska Panhandle. Cold enough for snow in the higher elevations.
623 PM EDT Sun Apr 9 2017 Another dry day is expected on Monday with plenty of sunshine and even warmer temperatures with highs in the mid 60s to lower 70s.
As the cold front progresses over the region late this evening and overnight scattered showers and storms will be possible late tonight mainly across southeast parts of Oklahoma.
131 PM EDT Sun Apr 9 2017 High pressure will extend over central North Carolina today, then drift offshore Monday.
Additional MVFR cigs possible late in forecast in the same general areas ahead of cold front with clearing behind it. Cold front will move into northwest Oklahoma between 00Z and 03Z and progress southeast over all terminals by 13Z. TSRA will not be mentioned as activity ahead of dryline will be very isolated and activity associated with cold front late tonight expected to be primarily southeast of sites. A cold front will pass through Oklahoma this evening and overnight with moderate north winds following.
312 PM EDT Sun Apr 9 2017 High pressure will extend over central North Carolina today, then drift offshore Monday.
Current temps range from the lower 70s most areas to the upper 60s Plateau. Pressure gradient on the increase this afternoon as sfc ridging continues to move east and away from our area. Meanwhile, upper ridging helping to send temperatures upward and further promote the downward mixing of higher gusts.
High pressure at the surface will remain nearly stationary off the NC coast, while a low pressure system tracks NE across the Plains into the Great Lakes. The mid/upper ridge axis over our area today will shift to our east tomorrow. Pattern begins to change Monday night as weak area of low pressure moves into the Great Lakes and trailing cold front moves into the lower Mississippi Valley and lower Ohio Valley.
1125 AM MDT Sun Apr 9 2017 Southwest flow aloft continues across the northern Great Plains ahead of an approaching upper trough now over the Great Basin. The western trough will cut off over Wyoming this afternoon and cross near the SD/NE border tonight. Will also issue an advisory for the Spearfish area with mention of 2 to 5 inches since it looks like the higher elevation of the foothills would probably reach advisory criteria. which will stay near or above freezing most of the night. Mainly dry and milder conditions will develop for the first half of the week as weak ridging passes over the region.
Slight chance PoPs are then expected after midnight for a larger portion of the forecast area as a cold front approaches. The cold front will move into the Big Country early Monday morning. As the aforementioned cold front slowly moves through the area on Monday, an increasingly unstable environment will develop ahead of this feature, especially as heating takes place during the afternoon hours.
332 PM EDT Sun Apr 9 2017 High pressure will keep dry weather and warm weather in the forecast through Monday.
316 PM CDT Sun Apr 9 2017 A double barreled low pressure system is currently working its way across the central plains, with the leading low over eastern Nebraska, and the second one over southwestern South Dakota. This low will drop south late tonight into early Monday morning, allowing the far southern CWA to become the area most likely to see precipitation through the night and into Monday morning. The precipitation will come to an end by Monday afternoon as high pressure drops in behind the exiting system.
319 PM EDT Sun Apr 9 2017 High pressure will linger over the western Atlantic through early this week.
122 PM CDT Sun Apr 9 2017 Despite increasing cloud cover, high temperatures today should be slightly warmer than the previous day owing to a much warmer start early this morning and strong and gusty southerly/southwesterly surface/low level winds. A cold front will also be approaching this area tonight as an upper level low moves eastward into the northern Plains. Lows tonight will be unseasonably warm due to the cold cover and continued southerly surface winds ahead of the approaching cold front. A surface cold front will track thru the CWA providing good moisture convergence and have some measure of upper level support.
607 PM EDT Sun Apr 9 2017 Low pressure over the Central Plains will move into the Central Great lakes Monday.
235 PM EDT Sun Apr 9 2017 A high pressure system will continue the dry weather through Monday.
A cold front will move across the OK and TX Panhandles later this evening and tonight with north winds in its wake.
317 PM CDT Sun Apr 9 2017 A tight gradient between high pressure anchored along the East Coast and a frontal boundary over the Plains is creating strong southerly winds across central Illinois this afternoon. with the highest gusts concentrated along/east of I-57.
949 AM EST Thu Jan 5 2017 From the satellite view we find a strong upper low spinning over Quebec, a zonal pattern from west to east across the CONUS, and a vigorous trough diving southward through the Canadian Rockies and Montana. The weakness in the pressure pattern will continue while the vigorous trough dives through the the Northern Tier and across the Front Range on Friday.
Strong cold front will move through the region between 00-02z, with increasing N winds ~15 kts at AEX, and 18-20 kts with gusts to near 30 kts towards the end of the period for BPT/LCH/LFT/ARA.
After sunset, temperatures will completely drop below freezing and remain there through the night. Chattanooga Airport, TN 47 30 33 21 / 20 20 40 40 Knoxville McGhee Tyson Airport, TN 42 27 31 20 / 30 50 40 40 Oak Ridge, TN 41 28 30 18 / 30 60 20 20 Tri Cities Airport, TN 40 27 30 17 / 40 70 40 40 NC.
529 AM EST Thu Jan 5 2017 Currently - A weak trough extends southwestward from the Atlantic into the Florida Straits, and local winds are light and range from northwest to northeast. Forecast - A rather weak flow will remain across the Keys over the next couple of days as the weak trough pulls further away. A strong cold front will begin moving into the central and eastern Gulf of Mexico on Friday.
410 AM CST Thu Jan 5 2017 In the upper levels a West Coast trough will quickly swing east today moving across the Panhandle on Friday.
This creates increasing upglide induced showers over the Lower Mississippi River Valley later today, which will spread east over the FA overnight tonight. Looking at the possibility of any freezing or frozen precip mixing in tonight, the model soundings say no, with the column above freezing, even over the coolest northern portions of the FA. With the increasing cloudiness limiting any overnight radiational cooling, and the cooler boundary layer flow (read at or below freezing), remaining north of the FA, am expecting overnight temps tonight to remain above freezing, dropping into the mid 30s north to upper 40s along the immediate coast. For today, even with increasing cloudiness, enough sun gets in to allow temps to generally rise into the low to mid 60s, upper 50s northwest with this area seeing the least heating and increasing virga cooling the boundary layer.
847 AM EST Thu Jan 5 2017 Quiet weather morning behind a cold front exiting the region. /issued 557 AM EST Thu Jan 5 2017/ Quiet, VFR weather is forecast through the TAF period, behind a cold front which is now just south of the Florida Keys. Surface analysis for the past several hours depicts a cold front exiting our region with drier air filtering in behind. A rather benign weather pattern is on tap through Friday evening as the aforementioned cold front pushes further out to sea. Expect partly cloudy skies, lower relative humidity, and slightly cooler weather. High temperatures across the region will max out right around 80 degrees, which is still around 5 degrees warmer than normal for this time of year. Another cold front, a bit more potent, should begin to approach South Florida by Friday night.
Model guidance continues to trend cooler and drier despite strong mixing overnight due to the strong advection of Arctic air. Therefore, lows Friday morning will generally be in the mid 20s to lower 30s with some areas above freezing along and south of a Del Rio to San Antonio to Halletsville line where more cloud cover is expected.
An arctic cold front will move through the entire area during the morning hours today. Next arctic cold front moving through this morning. A strong cold front is currently moving into our forecast area early this morning. Texas Tech Mesonet observations at 3 AM show that the front has moved into our northern counties, as winds have turned to the north and temperatures have dropped to below freezing. The 00Z model guidance has generally caught up with the faster movement of the front, so have trended the forecast toward this latest guidance, and a faster moving cold front. Highs north of I-20 will struggle to warm above freezing today, with highs in the Concho Valley and Heartland in the mid 40s, and possibly upper 50s along the I-10 corridor.
Upper short wave moving across ne Fl/se Ga generating clouds over eastern zones and low pressure off the east coast.
Models develop low stratus and fog over much of the eastern Oregon toward the lower Treasure Valley and the Weiser River Basin overnight into Friday morning.
Did not adjust snow amounts too much as models are still indicating decent lift with the cold front this afternoon/evening, and some orographic help with eastern zones looks to aid in some additional snowfall on the Plateau.
Through tonight Canadian high pressure will continue to build into the CWA bringing colder. Then as low pressure develops over the Gulf and moves into the northeast Gulf by Friday evening. temps will be falling below freezing across the rest of north GA and parts of west central GA. The precip will begin as rain or rain/snow mix late Friday afternoon/early Friday evening but change over to all snow as temps fall below freezing.