Aikyam-Lab/Synoptic-Bench huggingface dataset:
327 PM CDT Fri Oct 6 2017 The low to mid level boundary that has produced showers and thunderstorms this morning has pushed south of the area. Will expect additional rainfall amounts of a half an inch to an inch as the low level jet briefly backs in central Nebraska and south central SD before veering to the southwest and taking the higher chances to the south and east of the area. In central SD some fog will be possible where clouds clear as winds will be light and the low levels are fairly moist.
248 PM CDT Fri Oct 6 2017 The 19Z/2 pm surface analysis shows a warm front over northern IL north of I-80 and extended to deepening 1002 mb low pressure over se CO. Areas along and south of I-70 have been dry today and have seen more sunshine and warmer temperatures of 80 to 85. Low pressure to eject ne into central IA by dawn Saturday, keeping better chances of showers over IA/WI and nw IL. Highs Saturday to range from the lower 70s by Galesburg, to the low to mid 80s from I-55 east with warmest readings over southeast IL and the Wabash river valley. 12Z models continue to swing cold front quickly eastward across IL during Saturday afternoon accompanied by a band of showers and thunderstorms, and mostly east of IL Saturday evening after dark.
339 PM MDT Fri Oct 6 2017 Apart from some scattered showers and isolated thunderstorms focused along the Continental Divide this afternoon, generally benign conditions have been experienced across the region as drier air works in behind a departing upper level trough.
7 inches along the lower Texas coast into the southern Coastal Bend.
252 PM EDT Fri Oct 06 2017 High pressure centered north of Bermuda extends west into the central and southern Appalachians. This high will be weakening as it lingers through the weekend.
Synoptic Setup: A strong upper level trough and strong jet aloft will push across the area tonight with a deep low pressure system aloft moving across Alberta and Saskatchewan overnight tonight. This system will push a cold front across NE MT tonight into early Saturday morning. A strong jet aloft, just at the inversion level and above will produce some strong winds over some of the higher elevation sites, like the Little Rockies in SW Phillips Co. , and that is the reason for the High Wind Warning for the area tonight into Saturday morning.
Better chances for showers and thunderstorms will be later this evening and after midnight as a cold front moves into the region. The Chances for showers and thunderstorms will diminish by Saturday afternoon as the cold front moves east of the area. Even with the cold front moving through Tonight into Saturday, Daytime temperatures will still remain above normal.
152 PM MDT Fri Oct 6 2017 Upper level analysis shows a trough crossing the Rockies. Showers will move out of the CWA this evening as the trough crosses the northern plains. Warm air advection will continue Saturday under weak upper ridging, with highs reaching the mid 60s to mid 70s. A strong cold front will begin passing through the CWA in the afternoon ahead of a broad upper-level trough.
S-SW wind will prevail this PM ahead a cold front that will move into HOB around 05Z and then FST after 09Z.
Some cu development is noted over the lower Trans Pecos region as of mid- afternoon. For Saturday, a weak cold front should manage to drift slowly southward into the southern Edwards Plateau and western Hill Country late Saturday afternoon into the evening.
359 PM MDT Fri Oct 6 2017 A strong upper level trof will continue moving eastward over CO through the evening hours. The areas that should see the highest chances for severe storms will be Kiowa, Prowers, Bent, and Baca counties. Temps on Sat are expected to reach highs in the mid 70s to around 80 acrs the southeast plains, and mostly in the 60s in the high valley locations.
301 PM MDT Fri Oct 6 2017 Subsidence behind the exiting upper level trough will bring stable and dry air to the area.
309 PM CDT Fri Oct 6 2017 High pressure was over the Northland this morning, with cool, clear, dry conditions. A long-wave trough will move through the Northland Saturday. Highs will be in the lower to middle 60s. A few showers will linger into Saturday evening for eastern portions of northwest Wisconsin, as the low pressure system and upper level trough move off to the north and east.
307 PM CDT Fri Oct 6 2017 An upper trough is over the Rocky Mountain region moving eastward with westerly flow over West Texas and southeast New Mexico. A cold front is expected to push into the CWA beginning this evening so storm chances will increase across the northern portions of the area during this time. Due to these conditions, a few strong to severe storms are possible late this afternoon into this evening across northern portions of the CWA along and ahead of the cold front. The cold front will result in Saturday morning lows being closer to normal values with lows in the 50s and 60s. The previously mentioned upper trough becomes embedded within a larger upper trough and moves over the Upper Mississippi Valley region on Saturday.
An upper trough will dig through the Northern and Great Plains tonight and through the Midwest on Saturday. The cold front/westerly winds behind this trough will not get through southern WI until Saturday evening. Saturday morning, the whole trough will slide eastward through WI.
Not much change this afternoon as a weak mid/upper level trough will cross western/central ND through the evening. A cold front will swing through Saturday afternoon bringing a slight chance of a brief rain shower. The GFS remains at the higher end of the guidance with the NAM and Canadian in the middle and the ECMWF likely too low only depicting winds around 15-20 mph. For this forecast utilized MOS Guidance as it tends to handle wind events well compared to some of the blends which underplay the higher end events. A cold front currently across southern Alberta Friday afternoon will sweep across west and central North Dakota Saturday.
324 PM CDT Fri Oct 6 2017 Warm front has lifted to about Highway 30 with a nice low level moisture feed of PWAT's near 2 inches. The main upper level trough was located in the Northern Plains and into Colorado with a series of impulses moving through the Midwest in the southwest flow aloft. However, on the nose of the low level jet and stronger impulse in southern MN and northern IA there have been thunderstorms and heavy rainfall. Saturday: The main upper level trough/strong dynamics arrive with the models indicating the trough going negatively tilted. This should enhance the forcing as the cold front pushes across the cwa, and low pressure tracks into WI.
Water vapor imagery depicts a weak short wave trough over the northwest Gulf of Mexico south of Louisiana. This short wave trough will move west into the coastal waters late tonight and then weaken along the coast Saturday.
1129 AM MDT Fri Oct 6 2017 Current surface analysis shows low pressure over eastern CO, with inverted trough stretching northward into eastern WY. Upper level analysis shows low pressure over western WY into eastern MT, with strong jet south and east of the low from the Rockies to the Central Plains. Temps are in the 40s and lower 50s across the area, with some upper 30s across the higher Black Hills. Scattered showers and isolated storms will continue to develop and push east across the area through much of the day, lingering across south central SD into the evening, as weakening upper low crosses the region. However, a prefrontal trough passage in the morning will help to bring gusty west to northwest winds across much of the area, especially northwest SD.
249 PM PDT Fri Oct 6 2017 High pressure and offshore flow will bring very warm and dry weather today and Saturday, along with gusty northeast winds in the foothills and valleys.
to the lower and mid 70s south where sunshine most prevalent. This activity firing up ahead of upper trough over central Colorado. sunny skies and near to above normal high temps that will range in the lower to mid 70s.
344 PM MDT Fri Oct 6 2017 A strong upper level trof will continue moving eastward over CO through the evening hours. The areas that should see the highest chances for severe storms will be Kiowa, Prowers, Bent, and Baca counties. Temps on Sat are expected to reach highs in the mid 70s to around 80 acrs the southeast plains, and mostly in the 60s in the high valley locations.
An associated cold front will move south across the area late tonight and Saturday morning. Best lift associated with the upper trough will largely remain north of the forecast area but will clip the Big Country overnight. Temperatures will be a little cooler on Saturday, with afternoon highs in the low to mid 80s.
A cold front is forecast to move through north-central Idaho and western Montana during Saturday. This front will be on the leading edge of a trough that will overtake the Pacific Northwest during the weekend. As the trough moves into western Montana and north- central Idaho clouds will increase along with chances for precipitation from north to south.
313 PM EDT Fri Oct 6 2017 A stalled front over central Pennsylvania will lift slowly to the north as a warm front later tonight bringing another late taste of summer-like weather to the Saturday.
As the deep layer shear vectors back to southwesterly (more parallel to the cold front) and moisture transport strengthens dramatically along/ahead of the front early this evening, storms should congeal into a quasi-linear line of strong-severe storms, with the main threats likely transitioning to heavy rainfall particularly in central Kansas, and strong-severe wind gusts. Slightly cooler and much drier air will filter into the region in the wake of the cold front Saturday into Saturday night.
637 PM EDT Fri Oct 6 2017 High pressure will crest over the area tonight then move east of the region on Saturday.
/issued 1054 AM CDT Fri Oct 6 2017/ High pressure aloft and at the sfc continues to influence our wx today, and unseasonably warm temperatures and mostly clear to partly cloudy skies will be the result. /issued 555 AM CDT Fri Oct 6 2017/ For the Four State Region expecting one more day of pleasant weather conditions under the weakening ridge of high pressure aloft that will continue to flatten and re-form. An inverted upper trough/wave will be shifting West across the Northern and Western Gulf of Mexico today and tonight. Also aloft an upper level low over the Northern Rockies has a trough axis reaching to the Southwest across Nevada and California which will swing to the East putting a continued squeeze on the upper ridge overhead and nudging the cold front South tonight and during the day Saturday.
259 PM MDT Fri Oct 6 2017 Southwest winds continue to strengthen overnight as a cold front moves toward the area.
/issued 1038 AM CDT Fri Oct 6 2017/ An upper ridge of high pressure will remains over the Mid-South this morning.
209 PM CDT Fri Oct 6 2017 An area of low pressure over the central Plains is drawing rain up into southern South Dakota this afternoon. The good mixing will lead to warmer temperatures with highs climbing well above normal and topping out in the mid to upper 70s. As temperatures rise, RH will tumble into the lower 20s across central SD.
240 PM EDT Fri Oct 6 2017 A stalled front over central Pennsylvania will lift slowly to the north as a warm front later tonight bringing another late taste of summer-like weather to the Saturday.
Tonight should be slightly warmer than the past several nights as southerly winds, low-level moisture, and mid-level clouds begin to increase late tonight.
A cold front will veer winds to the northwest AFT 07/03Z, and be around 15 to 25 kts with higher gusts within 3 hours after frontal passage.
302 PM CDT Fri Oct 6 2017 A sharp upper level trough currently over the Rockies will emerge onto the Plains this evening but not before creating some severe weather chances across West Texas. Most of the upper level divergence from this trough will be concentrated to the north of the region from the Texas Panhandle into southwestern Kansas. Low level convergence will rapidly increase as the cold front enters West Texas during the evening. In the meantime, low level theta-e will continue to increase out ahead of the cold front/dryline. Furthermore, deep layer shear will continue to increase with the approach of the upper level trough.
Thunderstorms are likely this afternoon and evening as a cold front marches across the forecast area. After line formation along the cold front, damaging winds would be the main threat. Temperatures should reach into the 80s today ahead of the front, then fall back into the 40s and 50s tonight behind the cold front.
339 PM EDT Fri Oct 6 2017 High pressure will crest over the area tonight then move east of the region on Saturday.
231 PM CDT Fri Oct 6 2017 Upper ridge influence which has been prevalent over the last several days is quickly coming to an end as our region becomes squeezed between an approaching upper trof/cold front from the nw and TS Nate from the se.
1206 PM CST Thu Nov 16 2017 The main focus for today will be the windy and warmer conditions across the area. Southeast winds this morning will quickly increase shortly after daybreak in south central SD as the surface gradient increases and a mid level trough begins approaching from the west. Despite the clouds, expect a much warmer day across the board, with highs from near 40 in southwest MN where the clouds will persist longest, to the mid 50s in south central SD. With cross barrier flow developing in the Buffalo Ridge area, expect local enhancement of wind speeds throughout the evening and overnight hours. Temperatures in the Buffalo Ridge area will likely see periods of warming overnight, with the enhanced winds and persistent cloud coverage in that area.
Cooler, but still slightly above normal temperatures will be seen this weekend as a low pressure system quickly passes through the western states and to the north of Phoenix.
An upper level ridge will expand back into South Texas on Friday. Highs will generally range from the lower 80s over the Victoria Crossroads to mid/upper 80s in the Brush Country and Rio Grande Plains.
223 PM EST Thu Nov 16 2017 High pressure build into NC from the northwest through Friday, before moving offshore Friday night.
SAT/SSF are VFR with KDRT following suit as the last of the low stratus mixes out over the next hour also. Later today, surface winds veer to southerly as 700 mb ridging sharpens over Central TX. Southerly winds increase tonight as a polar trough approaches the Rockies. By midday Friday 850 mb winds turn more SWly and lead to a shrinking moist layer with dry air working down from aloft to break up the low clouds.
328 PM CST Thu Nov 16 2017 The main weather concerns through Friday afternoon concern strong southerly winds this evening and an approaching cold front tomorrow. This evening, breezy south winds continue as the sfc pressure gradient tightens across the state with the high slowly moving east. H85 flow is rather strong at 30-40 kts ahead of the low/mid level trough approaching the panhandle. Temperature-wise, kept tonight's lows fairly mild in the upper 30s to lower 40s, which is on the high end or slightly above guidance. In addition to the breezy south winds, an H85 thermal ridge crosses the area preceding the trough. The NAM showed the the strongest midlevel frontogenesis and produced the highest rain totals.
1100 AM MST Thu Nov 16 2017 Teleconnections upstream are evolving such that the persistent trough that has been lingering off the central left coast of NOAM will be replaced by ridging by this weekend. Highs remain above normal today and likely tomorrow ahead of the cold front which doesn't bode well for snow impacting roadways, but with convection it will be snowing heavy at times at higher altitudes beginning by the pre-dawn hours Friday. With the subtropical jet merging with the polar jet over our central mountains tomorrow windy conditions are likely and this will add another element of impact to the region where the highest QPF is likely.
Behind this morning's cold front passage, the atmosphere has become quite unstable across much of western Montana and central Idaho.
140 PM EST Thu Nov 16 2017 High pressure build into NC from the northwest today through Friday, before moving offshore Friday night.
An approaching cold front will produce increased southwesterly winds today and Friday.
The combination of a 850 MB thermal ridge and gusty southwest winds will result in a very warm afternoon across West Central Texas.
Short range models indicate weak upper level ridging shifting eastward across the Central Plains tonight as an upper level trough begins to push ashore into the Pacific Northwest. Should see highs ranging from the mid 70s(F) to the lower/mid 80s(F) Friday afternoon. Models on Friday are in decent agreement with a cold front dropping south across Nebraska during the day as an upper level trough approaches from the west.
1244 PM EST Thu Nov 16 2017 High pressure in the Midwest will track through the Ohio Valley tonight. This high will exit the area to the east on Friday with strong southerly winds bringing a warm shot of air to the region Friday and overnight.
Under clear skies, lows tonight will dip to near freezing areawide. With sunny skies Friday, temperatures will warm into the lower 60s.
321 PM EST Thu Nov 16 2017 High pressure builds back into the area through Friday.
239 PM CST Thu Nov 16 2017 Challenges for the short term include clouds and temperatures associated with wrm/cold frontal passages well as a light mix of rain/snow and sleet/freezing rain. Mostly rain/snow chances southwest and central with some snow/sleet and freezing rain across the northern James River valley late this evening and after midnight. Daytime Friday will start with the cold front moving through the region and high pressure building into the north.
1039 AM MST Thu Nov 16 2017 09z surface analysis had weak low pressure over southeast MT with a stationary boundary into southern SK and a warm front into central NE. Pressure falls increasing along boundary as warm air advection increases under upper ridge in place over the central US. Upper trough digging across southwest Canada into northwest US, which will be the main concern in the short term. Today, thermal ridge peaks over the CWA with sustained pressure falls across the region. Warm front will move slowly northeast today as lee trough pushes into eastern WY. It will drag weak trough into the CWA. Narrow band of moderate 850-700mb frontogenesis forecast by models behind cold front along with rapidly decreasing condensation pressure deficits.
456 PM EST Thu Nov 16 2017 Dry weather will briefly return with Friday high pressure.
The weather pattern in the short term will be dominated by a large trough of low pressure swinging through the region, and an attendant cold front. The cold front will continue to drift across the region through tonight. Another piece of energy along the backside of the trough will move through tomorrow and will bring chances again of some light precipitation. Afternoon Update: Morning models are still hinting at a building ridge behind the large trough moving through the region in the short term. Bigelbach PREVIOUS DISCUSSION: Latest 00z model guidance continues to support a building upper level ridge across the western U.
and with a light north wind, just south of the cloud deck may also see slightly cooler temps. High pressure drifting east through the Midwest will keep conditions dry in our area. By tonight, a southeast flow will start to set up behind the low, and that will keep temperatures fairly steady through the night.
temperatures were only in the low to mid 70s in the above mentioned areas under the canopy of clouds. Southerly winds have mixed out enough clouds across the rest of the area where temperatures have moved up into the lower 80s from Sugarland and Katy west to Columbus and Bay City. The upper flow is expected to flatten out on Friday as the next system and associated cold front approaches.
355 PM EST Thu Nov 16 2017 High pressure will build across the state through Friday.
Weak trough has provided enough lift to generate showers, mainly over the Coastal Bend into the Coastal Plains. A weak inverted trough (MSAS analyses) over the CWA is predicted to persist at least through early this afternoon (NAM/GFS/ECMWF deterministic. ) Anticipate that the combination of the trough and sufficient moisture will result in isolated/scattered showers Today.
252 PM EST Thu Nov 16 2017 Developing low pressure will track through the Gulf of Maine this evening.
High pressure will build into the region tonight through Friday.
1232 PM EST Thu Nov 16 2017 A high pressure system will build in tonight providing clearing. The high remains on Friday.
Snow showers were continuing south of Bend and these scattered showers will persist today and also across the higher elevations in response to a disturbance off the pacnw coast. The quasi-stationary cold front over south central and southeast Oregon will bring increasing light snow to KBDN.
Snow showers were continuing south of Bend and these scattered showers will persist today and also across the higher elevations in response to a disturbance off the pacnw coast.
These clouds will affect the rise in temperatures today and may have to lower the highs some.
153 PM EST Thu Nov 16 2017 High pressure builds back into the area through Friday.
136 PM EST Thu Nov 16 2017 Weak cold front now east of the area will continue moving off shore this evening. High pressure build back into the area tonight.
Issued by National Weather Service KANSAS CITY/PLEASANT HILL MO 224 PM CST Thu Nov 16 2017 The synoptic pattern early this afternoon features a trough sliding off the northeast CONUS, with yet another trough moving into the Northwest.
Current temperatures are 2-5 degrees warmer at first glance compared to yesterday. POPS should be minimal until the passage of the strong cold front on Sat. Much cooler and drier air will be moving in Sat night/Sun.
249 PM EST Thu Nov 16 2017 Weak cold front now east of the area will continue moving off shore this evening. High pressure build back into the area tonight.
253 PM EST Thu Nov 16 2017 High pressure will build across the state through Friday.
Skies cleared out nicely across southern WI this afternoon as drier air mixed into the low levels. Isentropic lift will bring increasing clouds to the low levels through the morning.
222 PM CST Thu Nov 16 2017 The synoptic pattern early this afternoon features a trough sliding off the northeast CONUS, with yet another trough moving into the Northwest.
1117 AM CST Thu Nov 16 2017 H5 analysis from earlier this evening had low pressure located off the coast of British Columbia with a trough of low pressure extending southwest into the eastern Pacific. Downstream of this feature, a low amplitude ridge of high pressure extended from the northern plains into south central Canada. At the surface, a trough of low pressure extended from northeastern Wyoming into eastern Colorado. With H85 temps ranging from 6C in the east to the lower teens in the west, highs should reach the middle 50s in the east, to middle 60s in the eastern panhandle. In sheltered and low lying areas, enough dry air exists, which will allow lows to reach the lower 30s. Clouds will also increase as well overnight, which will facilitate warmer low temperatures.
237 PM CST Thu Nov 16 2017 Gusty southerly winds have taken hold across the area under weak ridging in the mid and upper levels. With some lingering cloud cover, I would tend to favor the low-end of guidance, but even that is in the 60s for most of the area.
213 PM CST Thu Nov 16 2017 A stalled frontal boundary and stubborn stratus have led to a much cloudier and cooler day for portions of Minnesota and Iowa today. Temperatures have been struggling to reach the freezing mark in a few locations. Meanwhile, south of the warm front across south central SD and NE, temperatures have soared into the 50s and even 60s.