Aikyam-Lab/Synoptic-Bench huggingface dataset:
High pressure north of the area will weaken as a cold front moves into the southeast U. High pressure weakens north of the area into tonight, with E/NE winds decreasing to around 5-10 knots overnight.
Cold front is currently working its way through Middle Tennessee with scattered light showers occurring mainly behind the boundary.
Have gone with cool end of guidance due to the lower dewpoints and expected good radiational cooling conditions tonight. Have gone on the high end of guidance for the maximum temperature, and the mixing is also going to lower the dewpoints in the afternoon hours.
/ISSUED 315 PM CST Tue Nov 8 2016/ A cold front has worked its way through all but the southeastern most counties of the forecast area this afternoon, with cooler air and slightly drier conditions moving in behind the front. Meanwhile, water vapor imagery shows an elongated, east-west oriented upper trough overhead, which continues to enhance lift across all of the region. The forecast will call for a chance of showers with the better rain chances eventually shifting to the southern half of the region where the higher moisture levels reside. During the next 24 hours, the base of the upper trough will shift southwest and split from the main flow, forming a cut-off low over Northern Mexico tomorrow.
Cold front extended from Detroit to St. Louis with a high pressure ridge from northern MN to NM. Tonight: High pressure ridge building into the cwa will provide clear skies and light winds. Wednesday: High pressure over the cwa will again allow for a sunny day with above normal temperatures.
Strong positively tilted upper ridge extends from southern California over the Rockies to central Canada. The ridge is providing sunny skies but hazy conditions prevail across the San Joaquin Valley under the stagnant air mass.
619 PM EST Tue Nov 8 2016 A cold front will bring showers tonight and into Wednesday.
630 PM EST Tue Nov 8 2016 High pressure will continue to weaken and move offshore the evening as a cold front moves into the Mississippi River Valley. Models are progging a wind shift/trough out ahead of the main boundary that moves through late tonight/very early on Wednesday. A pre-frontal trough is expected to move through the area late tonight/early tomorrow morning. Winds are not expected to pick up much speed behind the trough, but should change direction to a more westerly direction. Winds are expected to become gusty behind the cold front during the late morning and afternoon on Wednesday.
A mean layer mid-upper level ridge centered near Central America extends northeast into the Gulf of Mexico.
406 PM MST Tue Nov 8 2016 A tranquil weather pattern will remain in place through the short term with upper level ridge dominating across Wyoming.
The cold front, currently knocking on the doorstep of Indianapolis, will arrive overnight with cooler and drier air moving in. We expect a more substantial band of showers to move across the area tonight in association with a cold front. The cold front is forecast to be southeast of the KY by 4 AM with the shower threat ending on Wednesday. Much cooler air will spread into the area in the wake of the cold front with highs on Wednesday in the 50s. The cooler and temporarily damp conditions will also help the overall wild fire situation tonight into Wednesday, but since we are not expecting a soaking rain this will not put an end to wild fire concerns.
A cold front approaching the area tonight will bring in a band of low to mid level clouds and isolated light rain showers to the area.
946 PM CST Tue Nov 8 2016 The well advertised cold front is continuing to make its way SW to the local area. Lows will still fall into the lower 50s overnight. Mostly cloudy skies in the morning should give way to mostly sunny skies in the afternoon, as high pressure to our west builds eastward. A somewhat tightening pressure gradient as the ridge builds in should produce winds in the 5-15 mph range, with some higher gusts, especially in the higher terrain. Minimum relative humidity values should be reduced into the low/mid 30s percent range in some spots Wed afternoon.
540 PM CST Tue Nov 8 2016 Cold front currently moving into nw section of the forecast area will continue southeastward early tonight and should be through most the region by 03Z. Thereafter, skies should clear out from nw to se late tonight into early Wednesday as high pressure builds east from the Plains. In fact, will need to introduce areas of frost over all but far southern counties late Wed night as clear skies and calm winds allow readings to radiate down into the lower/mid 30s.
High pressure aloft will remain over the region through Wednesday for near record high temperatures, mostly clear skies, and light winds. Patchy fog is possible in the lower Treasure Valley early Wednesday morning.
/issued 250 PM CST Tue Nov 8 2016/ Cold front located from NE Texas to SC Texas will continue to move through the area overnight. Drier and slightly cooler conditions expected through the weekend.
704 PM EST Tue Nov 8 2016 A cold front will move east of the forecast area this evening. High pressure will build over the region on Wednesday.
A cold front will move onshore late tonight and early Wednesday, weakening as it moves inland.
Have gone with cool end of guidancedue to the lower dewpoints and expected good radiational coolingconditions tonight. Have gone on the high end ofguidance for the maximum temperature, and the mixing is also goingto lower the dewpoints in the afternoon hours.
A weakening cold front offshore will move across the area early Wednesday morning. High pressure aloft will prevail Wednesday night.
/issued 618 PM CST Tue Nov 8 2016/ Areas of light fog tonight ahead of a cold front that is pushing into the region towards midnight. /issued 250 PM CST Tue Nov 8 2016/ Cold front located from NE Texas to SC Texas will continue to move through the area overnight. Drier and slightly cooler conditions expected through the weekend.
618 PM CST Tue Nov 8 2016 Areas of light fog tonight ahead of a cold front that is pushing into the region towards midnight. /issued 250 PM CST Tue Nov 8 2016/ Cold front located from NE Texas to SC Texas will continue to move through the area overnight. Drier and slightly cooler conditions expected through the weekend.
703 PM EST Tue Nov 8 2016 High pressure will move east of area overnight before a cold front approaches the region late tonight. Cold frontal passage will occur Wednesday. High pressure then builds in through the end of the week. Cold front moving across Ottawa, Canada. Models then indicate a later arrival of cldnss in the late ngt tm frame ahead of a cold front currently near the QB/ONT border. Hi temps on Wed will be cooler than tdy due to the presence of cldnss and shwrs. The upper trof axis is forecast to move east of the down east coast Wednesday night.
Upper trough axis remains anchored across Southwest Texas. Some very spotty areas of light rain will be possible, but most sites will be rain-free as a cold front continues to advance through the region.
616 PM CST Tue Nov 8 2016 High cloud cover passing over upper ridge remains over much of the area. On Wednesday, the upper level ridge axis will move directly over the western Dakotas, likely bringing near record to record breaking warmth to all of western and central North Dakota.
The cold front will push through the rest of the state overnight.
High cloud cover passing over upper ridge remains over much of the area. On Wednesday, the upper level ridge axis will move directly over the western Dakotas, likely bringing near record to record breaking warmth to all of western and central North Dakota.
/issued 1002 PM CDT Tue Nov 1 2016/ Current surface observations, along with model progs of elevated winds and increased cloud cover the rest of the evening/overnight, suggest slightly warmer overnight temperatures than previously forecast and lower fog probability. /issued 351 PM CDT Tue Nov 1 2016/ Partly cloudy skies with temps in the low to mid 80s today.
/ISSUED 330 PM CDT Tue Nov 1 2016/ Sct precip along/north of the Highway 59 corridor should taper off this evening with the loss of heating and as sheared upper impulse pulls out of the region. Medium range solns agree on decent rain chances w/ the approach of upper trof from the west early to mid week.
Joplin and Springfield have broken their record highs for today (November 1st) with these warm temperatures in the low 80s. An upper level trough currently across California will dig to the southeast and close off tonight into Wednesday across the southwestern U. The upper level low will remain across the southwestern U.
For the southeastern United States, the next 48 to 60 hours will feature a transition from an upper level ridge and record high temperatures, to a large trough and much cooler temperatures.
925 PM EDT Tue Nov 1 2016 The weather will remain dry tonight with a east to northeast wind flow over South Florida along with the High Risk of Rip Currents along the east coast beaches. However, the 500mb ridge will begin to break down tomorrow ahead of a trough that will move in from Canada over the next few days.
515 PM PDT Tue Nov 1 2016 Weak high pressure will linger and confine any showers to the vicinity of the North Cascades and near the British Columbia border through Wednesday.
One more day of record breaking heat is expected tomorrow even though temperatures will be 2-5 degrees cooler than today. A deep trough will dig across the Desert Southwest midweek resulting in Southwest flow over the Midsouth.
At the surface, a quasi-stationary frontal boundary stretches from the Great Lakes southwest to central Kansas, where it intersects with a weak area of low pressure. A dryline extends southwest of the low down to around Childress TX. /Issued 329 PM CDT Tue Nov 1 2016/ Afternoon water vapor imagery shows well defined upper trough moving across southern CA. The upper low is still forecast to become cutoff from the main flow across the southwest. while cold front sags southward across KS on Wed afternoon.
742 PM EDT Tue Nov 1 2016 High pressure will build over the region through mid week.
An upper level ridge will gradually build over the Pacific Northwest tonight before moving eastward over the Northern Rockies on Wednesday.
Dry weather and above normal temperatures will continue to prevail across the forecast area over the next 24 hours, as high pressure at the surface and aloft remain in control of our weather. Lows tonight will also be a tad warmer than previous nights as temperatures range from the mid 50s to lower 60s.
High pressure will hang around the southeast for another day before getting moved south by the approaching cold front.
Sfc plots show converging winds from NE Kansas through the Quad Cities into NE Illinois along a warm front. A warm front aloft at 925-850mb serves as the forcing mechanism for showers and thunderstorms. Another forecast challenge is the possibility for falling temperatures during the afternoon north of the front/pressure trough where winds will turn to a northerly direction.
Tomorrow will be slightly cooler than today, but still warmer than seasonable temperatures due to the slow moving nature of this front. Subsident quickly fills the region from the northwest as heights increase at 500 mb through the weekend as an upper low becomes cut off from the mean flow over the southwest conus.
A Southwest to South flow aloft will provide for a stream ofmoisture into the area between the upper level ridge of high pressure over the Northeast Gulf of Mexico and an approaching upper level trough of low pressure across the Desert Southwest. In the lower levels a Southerly flow will provide addition moisture contributing to possible morning fog for some locations and lower clouds across the region.
A Southwest to South flow aloft will provide for a streamof moisture into the area between the upper level ridge of high pressure over the Northeast Gulf of Mexico and an approaching upper level trough of low pressure across the Desert Southwest. In the lower levels a Southerly flow will provide addition moisture contributing to possible morning fog for some locations and lower clouds across the region.
the rest of the week will be cooler but seasonal with highs in the 50s.
Meanwhile a developing low pressure area over Kansas is extending an inverted trough/effective warm front up across northern Missouri and southeastern Iowa. This will focus frontogenetical forcing along and north of the aforementioned inverted trough, resulting in showers and thunderstorms after sunset.
For tonight, high clouds will be on the increase from the south as a wave of low pressure moves into the central plains. The low pressure system is expected to move east into southern lower Michigan Wednesday afternoon. High temperatures on Wednesday will be cooler due to cloud cover or rain, but still well above normal for this time of year. Low pressure passing south of the region will bring some showers into central and east central WI on Wednesday, but they should taper off in the evening.
The upper level trough over eastern Nevada this afternoon will split as it makes its eastward into western Colorado on Wednesday. Ahead of the trough will be a moderate to strong southwesterly flow over the cwa tonight. The last few runs of the HRRR show some light showers along the Urban Corridor from Denver north to the Cheyenne Ridge mainly this evening. stable and cooler across the cwa. A ridge of high pressure aloft will move overhead Wednesday night to push the upper cutoff low further into AZ.
An upper level ridge will gradually build over the Pacific Northwest tonight before moving eastward over the Northern Rockies on Wednesday. Forecast period begins with a west-northwest flow aloft over region, but by the end of the period an upper level ridge will develop over the area.
935 PM EDT Tue Nov 1 2016 Upper level ridging across the Eastern U. Chattanooga Airport, TN 59 81 59 81 / 0 0 0 30 Knoxville McGhee Tyson Airport, TN 57 80 57 78 / 0 0 10 50 Oak Ridge, TN 58 80 58 77 / 0 0 10 60 Tri Cities Airport, TN 52 77 53 73 / 0 0 10 70.
A cold front sinks south and east allowing for increasing chances for showers and isolated thunderstorms in northwestern Indiana and southern Michigan through Wednesday afternoon. More widespread rain is expected Wednesday night as a wave of low pressure moves along the cold front.
This will keep overnight lows from bottoming out and have therefore gone with slightly warmer overnight lows tonight.
Remaining terminals can expect SCT to BKN skies through early Wednesday afternoon as mid level ridging centered over the northeast Gulf of Mexico slides southwest and weakens its influence over the area.
However, the 500mb ridge will begin to break down tomorrow ahead of a trough that will move in from Canada over the next few days.
Slight mid lvl height rises would translate into the Ern segment of the front transitioning into a warm front that should lift N/NW to induce warm, moist advection toward Central KS. A positively-tilted upper-deck wave extending from an INTENSE upper cyclone centered over Hudson Bay to a second cyclone developing over primarily AZ should keep the NE-SW oriented stationary front positioned almost thru the center of the KICT CWA. The cut-off cyclone centered over AZ will weaken considerably on Sat as a strong mid- upr wave approaches the W Coast.
A high pressure ridge will settle into the Carolinas and maintain a breezy onshore wind flow. Won't make many changes to the Wed period yet but right now the Treasure Coast looks to have the highest chance for showers, with decreasing chances northward.
The upper level ridge will be slowly shifting eastward tomorrow. Flow will become more zonal tomorrow night as a trough pushes in from the northwest. Highs Wednesday will be a bit cooler than today with increasing cloud cover in the afternoon and the ridge shifting eastward. 2 Fcst Record SDF 82, 1987 82 BWG 85, 1946 83 LEX 82, 1987 81 FFT 83, 1987 81 As the trough and its associated cold front approaches from the northwest on Wednesday night, showers will begin to move in after midnight.
830 PM EDT Tue Nov 1 2016 A quiet evening with high pressure ridging over the state and easterly flow continuing.
Cutoff upper low takes shape over Arizona, as has been consistently forecast by the models for many days. Models also remain consistent keeping the highest precipitation probablity and highest QPF south and east of SW KS Wednesday through Wednesday night.
Short term concerns will be with the possibility of fog forming in the morning hours with patchy freezing fog for the mountain valleys.
956 PM EDT Tue Nov 1 2016 High pressure will build over the region through mid week.
High Low pressure is expected to pass by to the south of Wisconsin on Wednesday. The frontal boundary ahead of the low will setup just south of the WI/IL border tonight. The rain will mostly work itself out of the area during the evening as dry air arrives in the wake of a passing mid level trough axis.
953 PM EDT Tue Nov 1 2016 A warm front will move north of the forecast area this evening.
In the low levels of the atmosphere, a high pressure system will be located along the southeastern coast of the United States overnight. In the mid levels of the atmosphere, an area of high pressure will be centered over the southeastern United States tonight. In the upper levels of the atmosphere, a ridge of high pressure will be located over the eastern Gulf of Mexico overnight.
This front, connected to low pressure over central Kansas early afternoon, will settle a bit into the far northern parts of the forecast area this evening, before lifting back northward early Wednesday. The remainder of the forecast area will be a bit cooler but still very mild, mainly mid 70s, with temperatures steady or falling a bit in the afternoon across the northwest as the front moves through.
The approaching trough will turn south and strengthen into a low pressure system over Arizona, with high pressure aloft replacing it over Utah midweek.
Precip chances will dwindle after about 09-12z as the trough axis shifts eastward and H7-H3 drying commences from west to east.
Slightly cooler air will settle into the area Wednesday but winds will be pretty light so with highs from the upper 50s to mid 60s conditions will be pretty pleasant. With weak forcing along the northern tier, along the highway 14 corridor for the most part, there will be thicker clouds and a small chance for light rain.
739 PM EDT Tue Nov 1 2016 A broad area of high pressure will remain over the area through Wednesday.
855 PM MDT Tue Nov 1 2016 Transition in flow aloft from southwest to northwest is allowing a weak cold front to move into the area with slightly cooler temperatures expected overnight.
1018 PM EDT Tue Nov 1 2016 Southerly flow in advance of a cold front will continue through Wednesday evening.
1002 PM CDT Tue Nov 1 2016 Current surface observations, along with model progs of elevated winds and increased cloud cover the rest of the evening/overnight, suggest slightly warmer overnight temperatures than previously forecast and lower fog probability. /issued 351 PM CDT Tue Nov 1 2016/ Partly cloudy skies with temps in the low to mid 80s today.
Satellite showing deep low pressure system and frontal boundary offshore with warm advection pattern.
Highs will be the lower 80s. 21 (Wednesday night through next Tuesday) By Wednesday night, an upper level low is expected to be nearly stationary near the southern AZ/northern Mexico border, with ridging over the top of west central Texas. At the surface, a cold front will be making its way south through the area into very moist area with precipitable water values of 1.
Cutoff upper low takes shape over Arizona, as has been consistently forecast by the models for many days. Models also remain consistent keeping the highest precipitation probability and highest QPF south and east of SW KS Wednesday through Wednesday night.
646 PM CDT Tue Nov 1 2016 At 6 pm CDT a cold front extended from low pressure in Manitoba southwest to the Montana/Saskatchewan border. A trailing cold front is progged to move southeast across ND, and southwest winds should become northwesterly. A building upper level ridge follows the trough, allowing warm and dry air behind southwest winds to spread across western and central ND on Wednesday. Expecting lows tonight from the lower 30s to around 40. Another mild day Wednesday with highs from the lower 50s north to lower 60s south central.
811 PM EDT Tue Nov 1 2016 Southerly flow in advance of a cold front will continue through Wednesday evening.
1040 PM EDT Tue Nov 1 2016 A broad area of high pressure will remain over the area through Wednesday.
Precipitation chances spread into the area tomorrow as a cold front moves into and through the area Wednesday and Wednesday night.
820 PM EDT Tue Nov 1 2016 High pressure will extend across the Middle Atlantic and Carolinas through Wednesday.
Some of the high-res model guidance does show some development of showers overnight as the low- ceilings develop and will mention VCSH.
808 PM EDT Tue Nov 1 2016 High pressure will ridge into the region from the north through Wednesday night.
Low temperatures should drop into the low 40s across the western forecast area and mid 40s across the western forecast area. As the upper level trough moves off to the east on Wednesday, central Nebraska will remain dry, but cooler. High temperatures on Wednesday will rise into the low to mid 60s, nearly 5 degrees cooler than Tuesday.
Cloud cover will likely keep temperatures from dropping as low as last night, with tonight's lows generally ranging from the lower-mid 60s across our area.
For tonight, high clouds will be on the increase from the south as a wave of low pressure moves into the central plains. The low pressure system is expected to move east into southern lower Michigan Wednesday afternoon. High temperatures on Wednesday will be cooler due to cloud cover or rain, but still well above normal for this time of year. Low pressure passing south of the region will bring some showers into central and east central WI on Wednesday.
733 PM EDT Tue Nov 1 2016 A warm front will move north of the forecast area this evening.
Slight mid lvl height rises would translate into the Ern segment of the front transitioning into a warm front that should lift N/NW to induce warm, moist advection toward Central KS. A positively-tilted upper-deck wave extending from an INTENSE upper cyclone centered over Hudson Bay to a second cyclone developing over primarily AZ should keep the NE-SW oriented stationary front positioned almost thru the center of the KICT CWA. The cut-off cyclone centered over AZ will weaken considerably on Sat as a strong mid- upr wave approaches the W Coast. In addition scattered showers/storms will be possible for late tonight and during the day on Wednesday, mainly for locations along and south of the cold front.
Cold front brings initial wind shift to northwest, with direction quickly trending to north and northeast. Light rain showers will be possible along and ahead of cold front, and perhaps a clap of thunder. Temperatures are running nearly 20 degrees cooler than what we've seen across the southeast. Our cold front is still on track to move across the Panhandles over the course of the day on Wednesday. There will be a low end chance for isolated showers to develop along the leading edge of the cold front as it moves into the central portions of the Panhandles as early as noon Wednesday.
/Issued 329 PM CDT Tue Nov 1 2016/ Afternoon water vapor imagery shows well defined upper trough moving across southern CA. The upper low is still forecast to become cutoff from the main flow across the southwest. while cold front sags southward across KS on Wed afternoon.
947 PM CDT Tue Nov 1 2016 An upper ridge of high pressure remains in control of the weather over the Mid-South this evening. The ridge will begin to break down late tonight which will allow some clouds ahead of an approaching cold front to move into the area. One more day of record breaking heat is expected tomorrow even though temperatures will be 2-5 degrees cooler than today. A deep trough will dig across the Desert Southwest midweek resulting in Southwest flow over the Midsouth.