Aikyam-Lab/Synoptic-Bench huggingface dataset:
TEMPS HAD WARMED INTO THE LOWER OR MID 70S OVER PARTS OF IOWA AND FAR EASTERN NEBRASKA. FRONTAL BOUNDARY REMAINS OVER OUR FAR NORTHWEST COUNTIES AND TEMPS ARE MUCH COOLER WEST OF THAT FRONT. A VORTICITY LOBE AND ASSOCIATED JET STREAK PRESENTLY MOVING THROUGH THE BASAL PORTION OF THE LARGE-SCALE TROUGH ALONG THE U. WHICH COMBINED WITH DRIER AIR FILTERING INTO THE AREA FROM THE WEST WILL SUPPORT COOLER OVERNIGHT LOWS.
HIGH PRESSURE WILL MAINTAIN WARM AND MOSTLY SUNNY WEATHER CONDITIONS THROUGH MONDAY. WEATHER CONDITIONS ACROSS NORTHWEST CALIFORNIA HAVE BEEN SPECTACULARLY WARM AND PLEASANT TODAY THANKS TO A LARGE SCALE BLOCKING PATTERN ACROSS THE WESTERN UNITED STATES. AND MORE SPECIFICALLY A LARGE RIDGE OF HIGH PRESSURE ALONG THE WEST COAST. HOWEVER THE WEAKENING RIDGE AND INCREASING CLOUD COVER WILL LIKELY MEAN THAT TEMPERATURES WILL BE A FEW DEGREES COOLER THAN THEY ARE TODAY.
238 PM EDT SUN APR 17 2016 HIGH PRESSURE WILL MAINTAIN DRY AND WARM WEATHER THROUGH MONDAY. WITH ONLY CLOUDS AND COOLER TEMPERATURE EXPECTED UPON PASSAGE. THE STRONG RIDGE WILL REMAIN IN CONTROL MONDAY.
130 PM EDT SUN APR 17 2016 RIDGING AT THE SURFACE AND ALOFT WILL LEAD TO MODERATING TEMPERATURES EARLY THIS WEEK.
145 PM MDT SUN APR 17 2016 THE UPPER LOW WILL CENTER ITSELF ON SOUTH CENTRAL WYOMING TONIGHT AND MONDAY. AS IMPACTS FROM THE UPPER LOW WANE FOR THE GLD FA, THERE IS STILL SOME LIFT ACROSS THE NORTHEAST FA THIS EVENING.
1107 AM EDT SUN APR 17 2016 HIGH PRESSURE WILL MAINTAIN DRY AND WARM WEATHER THROUGH MONDAY. WITH ONLY CLOUDS AND COOLER TEMPERATURE EXPECTED UPON PASSAGE. THE STRONG RIDGE WILL REMAIN IN CONTROL MONDAY.
309 PM EDT SUN APR 17 2016 GA REMAINS UNDER AN OMEGA BLOCK PATTERN THROUGH THE SHORT TERM WITH A STRONG UPPER RIDGE DOMINATING THE EASTERN PORTION OF THE COUNTRY.
118 PM EDT SUN APR 17 2016 A STRONG RIDGE OF HIGH PRESSURE WILL CONTINUE TO PROVIDE THE NORTH COUNTRY WITH CLEAR SKIES AND MILD TEMPERATURES TODAY. THE NEXT CHANCE FOR SHOWERS AND COOLER TEMPERATURES ARRIVES ON MONDAY ASSOCIATED WITH A COLD FRONT. TEMPERATURES WILL APPROACH 70 DEGREES IN THE WARMER VALLEYS ON SUNDAY.
400 PM EDT SUN APR 17 2016 HIGH PRESSURE WILL DOMINATE WEATHER MOST OF THIS WEEK.
222 PM EST Wed Dec 14 2016 Cold front was located over se Ga just north of the Fl border this afternoon. and then taper off this evening as impulse in broad trough aloft moves off the se coast. Cooler air over Ga will spread across the area tonight with temperatures returning to average levels for December.
Cold high pressure will build in from the northern high plains today. A very weak disturbance moving down the ridge to the west will move across northern portions of the area tonight and bring a chance of flurries or a light dusting along the Colorado-Kansas-Nebraska border region. Expecting highs only in the low to mid 30s around Hill City, but mid to upper 40s in eastern Colorado.
1157 AM CST Wed Dec 14 2016 Cold Canadian high pressure was building over extreme southeast Kansas and the Missouri Ozarks this morning, forcing a cold front through the region. Cloud cover south of the front was also helping the cause for warmer temps.
400 PM CST Wed Dec 14 2016 Drier air is advancing south into the area behind the latest cold front and is helping to erode the cloud cover this afternoon.
1239 PM EST Wed Dec 14 2016 Cold and dry arctic high pressure will begin to move in from the northwest later today. A warm front will bring increasingly wet and mild weather this weekend.
SHORT TERM (Tonight through Thursday Night): A weak and shallow cold front moved southward through Deep South Texas this morning and shifted light winds to the north/northeast early this afternoon. Temperatures will likely only rise a couple more degrees with the lower sun angle and lack of sunlight left in the day. In the afternoon, high pressure will move southeastward into the Central US and tighten the pressure gradient along the Texas coast.
1101 AM MST Wed Dec 14 2016 Cold high pressure will build in from the northern high plains today. A very weak disturbance moving down the ridge to the west will move across northern portions of the area tonight and bring a chance of flurries or a light dusting along the Colorado-Kansas-Nebraska border region. Expecting highs only in the low to mid 30s around Hill City, but mid to upper 40s in eastern Colorado.
As a warm front lifts northward through the day expecting widespread snow to form across the area with the best coverage and highest totals extending from the southwestern Mountains through Rosebud County.
Highs will only reach the low to mid 40s for most of the Mid State. The forecast has been updated for slightly cooler high temps.
The "full" surge of high pressure and associated dry air not to move through until overnight. Glanced areal LADOTD cameras and local observations and it appears the the lowest vis is about 1/2sm. Upper level trough digging southeast across the Great Lakes towards the southeastern US from Canada into the central U. will bring much colder and dry weather through Thursday night as high pressure builds into the region.
Cold front continues to move slowly eastward across the eastern half of our CWA from PFN-HOE. A cold front currently resides just northwest of our area, stretching from southern AL into central GA. Temperatures and dewpoints will generally hold steady in the lower 60s across our area overnight through the early morning. Not much of an increase in temperatures is expected by the afternoon under overcast skies as the cold front moves through our area, with highs ranging from the mid-60s in southeast AL to lower 70s in the FL Big Bend region.
105 PM EST Wed Dec 14 2016 High pressure and a very cold airmass will move in today.
Meanwhile, as a trough translates east over the northern Rockies, snow will develop as moisture overruns the existing arctic air mass over the region.
Cold front is now well offshore with northerly winds acrs the area. Temperatures range from the lower 50s acrs central LA to the upper 50s along and south of I-10. May see some VFR materialize after 06Z tonight and all locations by 12Z Thursday as high pressure and drier air continues to settle across the area. Quiet weather this early morning as a cold front continues to work its way off the coast. Right now based on the cloud cover, we will see afternoon temperatures 10 to 15 degrees cooler than what we saw yesterday. As high pressure builds over the region today and tomorrow, we will see more seasonable temperatures and dry weather.
Sub-freezing temperatures will occur Thursday night across all of central as the brunt of the cold air mass settles over the Southeast States.
300 PM EST Wed Dec 14 2016 A strong cold front will move through Thursday.
1033 AM CST Wed Dec 14 2016 Cold air is filtering in as arctic high pressure slides toward the region. /issued 308 AM CST Wed Dec 14 2016/ An arctic cold front has pushed through the Mid-South and is now located across Central Mississippi. Expect highs ranging from the upper 30s near the MO/AR and KY/TN border to the lower 50s in Monroe County, Mississippi. Lingering clouds will clear during the evening hours as arctic high pressure builds into the area.
Cold high pressure will build into the region for the end of the week. Moisture will return over the weekend ahead of another cold front. High pressure will slowly build in from the west this afternoon and tonight. Latest radar indicating only a few light showers along the Lowcountry. Overnight lows will range from the middle 30s north to the lower 40s south. Cold front will be east of the area this evening, allowing cooler and drier air to be pushing into the region.
The ridge aloft over the Great Basin will be building Eastward towards Colorado later tonight and Thursday. Much warmer on Thursday over the Front range but areas on the plains and especially Platte River valley will remain under inversions and temperatures will be much colder.
Highs will only reach the low to mid 40s for most of the Mid State. The forecast has been updated for slightly cooler high temps. MVFR cigs will persist at BNA/CKV for several more hours, then cigs should lift to VFR by tonight as dry high pressure continues to push into the region.
1118 AM CST Wed Dec 14 2016 At 3 am, an arctic cold front was located across central Minnesota and northern Wisconsin. For tonight, the low temperatures will generally range from -5 to -15. However, these temperatures may be even cooler in the cranberry areas of central Wisconsin where temperatures could potentially fall into the -15 to -20F range.
Winter storm playing out as expected, but we decided to extend winter weather advisory through the night for freezing rain in the Lower Treasure Valley of Idaho and Oregon. Temperatures there are expected to stay just below freezing through the night then rise above freezing Thursday morning at which time only rain is expected. Baker County is expected to stay cold with snow continuing into Thursday, but an above-freezing layer is expected between 4000 and 5000 feet MSL and freezing rain may mix in with the snow.
Scattered snow showers are expected to redevelop, especially over the ridges and lake snow regions. Another system will move in for the start of the weekend, bringing a wintry mix and warmer air. Brief high pressure will help maintain dry weather the rest of today, and with persistent zonal flow, expect to see some sun for much of the remainder of the afternoon.
Current winter storm warnings, winter weather advisories, and forecast snow amounts look about right for the warm front pushing north through our CWA today and tonight.
Cold front has slowed down a bit but will push through the TAF sites later this afternoon swinging the wind out of the northeast. A cold front will pass through the terminals today bringing a wind shift to the north-northeast. /issued 351 AM CST Wed Dec 14 2016/ A cold front, located across northeast Colo and the KS/NE state line at 3 am, will make steady progress south today and be on the doorstep of the forecast area around noon. Cold, dry surface ridging will build into the area tonight with diminishing winds. Any saturation of the air mass looks like it will be confined to a narrow layer around 850 mb and with the very dry air present below this layer, we've delayed the onset of any patchy freezing drizzle mention until 09 UTC/3 AM, and we don't expect any accumulations.
Cloudiness will be on the increase later this evening as a weak cold front approaches the area, however no significant rain fall is expected so will keep all terminals dry at this time. will slowly diminish during the afternoon then generally dissipate tonight as high pressure across the area retreats in advance of a cold front moving south tonight and Thursday. High pressure builds into the eastern U.
/issued 1033 AM CST Wed Dec 14 2016/ Cold air is filtering in as arctic high pressure slides toward the region. /issued 308 AM CST Wed Dec 14 2016/ An arctic cold front has pushed through the Mid-South and is now located across Central Mississippi. Expect highs ranging from the upper 30s near the MO/AR and KY/TN border to the lower 50s in Monroe County, Mississippi. Lingering clouds will clear during the evening hours as arctic high pressure builds into the area.
Currently, Arctic high pressure is situated along the front range of the Canadian and Northern Rockies. Just the mass of the High will be enough to keep the winds from dropping off completely, but we should see a significant decrease in winds late this afternoon and early this evening. The aforementioned warm advection, associated with an upper level trough moving onto the west coast will bring increasing clouds and a chance of light snow to the region, with the initial wave of moisture pushing into the south west and far south central on Thursday.
235 PM MST Wed Dec 14 2016 Upper level analysis has large Canadian closed low over northern Ontario, with fast northwest flow over the northern plains and upper ridging over the western CONUS. The next upper trough to affect the region will come onshore tonight. Warmer air aloft and some moisture will begin advecting into the northern plains ahead of the low, and lifted up and over the dome of arctic air. Forecast soundings are still showing the potential for some freezing drizzle east of the Black Hills Thursday afternoon into Thursday night. Any light freezing precip will diminish late Thursday night as the main system moves into the area. Persistent upper low over the Hudson Bay region will remain in place through the weekend.
Northerly winds persist this afternoon in wake of the cold front that passed through the region early this morning.
Chattanooga Airport, TN 50 26 36 22 / 10 0 0 0 Knoxville McGhee Tyson Airport, TN 46 23 32 18 / 10 0 0 0 Oak Ridge, TN 48 23 32 18 / 10 0 0 0 Tri Cities Airport, TN 45 21 28 13 / 10 10 0 0.
Increased lift from a weak mid to upper trof shifting west across the central gulf states and adjacent gulf waters today. This pattern looks to continue through tue afternoon though maybe with a little less coverage during the day on tue due to less forcing into the mid levels as the trof axis continues to shift west. Due to plenty of rain over much of the lower half of the forecast area last week some areas to the south could still experience some minor or nuisance flooding this afternoon and possibly early this evening.
203 PM EDT MON AUG 15 2016 Weak high pressure will build over the area tonight and Tuesday.
221 PM PDT Mon Aug 15 2016 High pressure will result in warm and dry weather through the upcoming weekend.
A stronger trough was located over Nevada. Per the HRRR model guidance, convection will diminish after mid evening with exit of trough and destabilization of low/mid levels.
1102 AM MDT MON AUG 15 2016 Models were consistent in moving an area of low pressure eastward from northern California to west-central Nevada during the day. Sheared vorticity ejected from the low may sustain shower and thunderstorm activity over eastern Utah later into the evening. High pressure will slowly push east of the area through the middle of the week. As a result, a modest increase of moisture from the southwest will allow for an uptick in precipitation through the remainder of the week with chance POPs over the higher terrain and slight chance in the valleys.
An upper level low currently resides in the eastern Gulf of Mexico, with the latest 300 mb mesoanalysis showing a well-defined circulation and a divergence maximum at this level. Despite a lack of upper level forcing as the upper low in the eastern Gulf is expected to dissipate by the afternoon, this ample deep layer moisture combined with sea breeze forcing will lead to decent chances of scattered showers and thunderstorms across our area. Typical temperatures for mid-August will continue through this period, with overnight lows in the low-mid 70s inland and upper 70s along the coast.
Will keep ceilings into the lower end of the VFR range through 23z.
The weather pattern will be a fairly typical summer regime with a low to mid level ridge to the east that will extend near the north Gulf coast with mostly southerly winds from the Gulf of Mexico pumping in moisture.
The cold front extends straight south of the LOW thru southwest IL.
422 PM EDT MON AUG 15 2016 A warm front will bring the likelihood of showers and thunderstorms, from later tonight into early Tuesday. A trailing cold front will follow, later Tuesday into the evening, with additional showers and storms.
342 PM CDT MON AUG 15 2016 Mid afternoon water vapor imagery/RAP analysis had a 592dam ridge axis across our CWA from the east with a <586dam trough axis across the central and southern plains. Mid afternoon surface analysis had a 1017mb ridge nosing west across our southern zones. Together with the mid level ridge, the resulting deep south to southwest flow was maintaining a two inch PWAT air mass over our CWA.
Convection initiating over northern Lake Michigan in past few hours appears to be result of locally higher instability axis/MUCAPE gradient over warmer Lake Michigan waters. Today, weak mid level and sfc ridging over the area will bring mostly sunny skies and dry weather. 850 mb temps to around 14C will support inland max temps into the lower 80s across much of the CWA. The weak pres gradient will allow prominent lake breezes to develop with slightly cooler conditions near the Great Lakes.
1144 AM MDT MON AUG 15 2016 Upper level analysis has weak cyclonic flow across the northern plains with a low over the Hudson Bay area and ridge across the southwest CONUS. At the surface, weak high pressure resides across the Dakotas with weak lee trof across central WY and northeast CO. Diurnally driven storms will diminish quickly by early evening as high pressure builds in from the north. Western upper ridge builds a little further to the east across the central and northern Rockies. Temperatures will be a few degrees warmer, in the upper 80s to lower 90s across the area.
317 PM CDT MON AUG 15 2016 Tonight: Sufficient upper forcing along 500MB-300MB trough was able to generate a few thunderstorms this afternoon in South Central KS. Expect these to rapdily diminish late this afternoon as trough continue slow east progress.
This trof will enhance tstm potential over the region late this afternoon/tonight. Surface: A trof extended from the Dakota's SSW across the Neb Panhandle into Ern CO. The sfc trof is fcst to drift E to ANW-LBF-IML line this afternoon. This trof should remain quasi-stationary tonight. Expect sct tstms to develop within the sfc trof 4pm-7pm and some of these will probably move into the fcst area.
256 PM MDT Mon Aug 15 2016 High pressure will be the main weather feature present over the Northern Rockies through Tuesday.
Warmer today with a few thunderstorms over/near the mountains. High res models also suggest a thunderstorm or two may develop along a sfc trof axis which sends a northerly wind shift into northern portions of the southeast plains during the early evening. with temperatures similar to a degree or two warmer across the mountains.
317 PM CDT MON AUG 15 2016 Low pressure system in central IL was spreading rain across central IL and eastward into the OH valley. An upper level trough will be approaching from the west so will continue with chance pops in the afternoon. Maximum temperatures will be in the lower to mid 80s.
355 PM CDT MON AUG 15 2016 For this evening, we will have to carefully watch a weakening short wave trough moving through the region. On Tuesday morning, the area will be located under short wave ridging on the western side of the low pressure area moving through the lower Great Lakes and another trough moving out of the Northern Plains. This ridge will keep much of the area dry during this time period. On Tuesday afternoon, the short wave trough over Minnesota and western Iowa will approach the region.
101 PM EDT MON AUG 15 2016 High pressure will briefly reside over the region today bringing mainly dry conditions although isolated thunderstorms are possible over northeast Pennsylvania. A low pressure system will track northeast into the Ohio valley tonight then lift into southern Canada on Tuesday.
152 PM CDT MON AUG 15 2016 Mid/upper level trough has moved just e of the area while water vapor imagery show distinctly drier air aloft. The better low level mstr return Wed AM will be accompanied by the said mid/upper level trof returning w too. As such there will be a renewed possibility of -SHRA/-TSRA, especially from around noon Wed onward into Thur PM as the mid/upper trough sharpens. The possibility of storms will be on the increase again Sat as cold front is advertised to arrived sometime between 12Z Sat-12Z Sun.
221 PM EDT MON AUG 15 2016 A low pressure system will move over the region this week, bringing much needed rain to the area. Water vapor imagery depicting upper trof axis over the southern plains with decent low level flow ahead of it providing increased moisture flux into the region. dragging trailing cold front across the area and lead to diminishing chances for precip.
At the surface, weak high pressure over nrn WI into Upper Michigan has brought partly cloudy skies and dry weather to the cwa with light winds. 850 mb temps again around 14C will support max temps into the lower 80s inland. Expect VFR conditions at all TAF sites as high pressure dominates.
113 PM PDT MON AUG 15 2016 High pressure over the west will keep warm and dry conditions in place through most of the week. Expect slightly lower, but still warmer than average, temperatures. We expect warmer than average temperatures to continue over the central California interior as high pressure persists along the U.
As the trough continues to track east this evening and tonight, the showers will continue to spread northeast across the area. A drier air mass will spread into the area as the trough moves through the region and will end the rain from west to east this evening into Tuesday morning.
These warmer temperatures in combination with the area's high precipitable water air mass will help to keep this upward trend going probably into the afternoon hours.
335 PM CDT MON AUG 15 2016 Isolated storms may linger across north/west Oklahoma near the mid-level cyclone center. And so it continues for a few days with the best moisture axis in the southeast part of the area or just to the southeast along with a persistent weakness in the mid-level ridging that tries to develop across the Plains.
High pressure will bring hotter temperatures and fewer thunderstorms early this week. As high pressure shifts off to the east, deeper moisture will return along with an increasing chance of thunderstorms the second half of the week. A little more afternoon cumulus cloudiness this afternoon than what was observed yesterday, but the drier air and warmer temperatures aloft continued to limit the thunderstorm activity.
Dry air has moved into the area as high pressure builds in. Primarily VFR and light surface winds will persist through at least 18Z/Tue as high pressure, especially aloft, builds eastward into our area.
1203 PM CDT MON AUG 15 2016 Well-advertised low pressure center cross western Arkansas this morning will continue lifting to the northeast today as a large scale trough slides east from the Great Plains. Temps today should top out a few degrees cooler than yesterday thanks to a healthy cirrostratus canopy aloft.
152 PM EDT MON AUG 15 2016 A low pressure system will move over the region this week, bringing much needed rain to the area. A low level jet over 50 knots east of this low will aid in lift as a front moves north.
Bulk of convection that remains is over the region where the highest instability is currently analyzed per the SPC mesoanalysis. Southerly flow in advance of the approaching trough and associated cold front should support the development of thunderstorms out ahead of the boundary but the best lift will reside with the trough as it lifts into NY/NE. Regardless, modest instability and 30kts of shear will once again bring the threat for strong to severe storms, especially in close proximity to the boundary and upper trough passage. Weak high pressure will begin to build at the surface as the front slowly shift south and east.
348 PM MDT MON AUG 15 2016 The area of high pressure that was situated over the forecast area this weekend will continue to weaken this afternoon as a mid-level trough approaches from the west. This will allow for isolated to scattered showers and thunderstorms beginning tomorrow afternoon once daytime heating kicks in, generally over the higher valleys and mountain areas.
418 PM EDT Mon Aug 15 2016 High pressure centered over the western Atlantic will remain nearly stationary through Tuesday. This front will eventually get kicked farther south and east by an upper level trough of low pressure which will move across the northern tier states later in the week. Radar showed isolated to scattered thunderstorms with the better coverage west of the Blue Ridge. Freezing level between 13500 and 15000 feet and precipitable water values from 1.