Aikyam-Lab/Synoptic-Bench huggingface dataset:
247 PM EDT Tue Oct 03 2017 Strong, Canadian high pressure initially centered over New England will moderate as it builds slowly south and off the middle Atlantic coast during the next few days. Dry ridge axis over the area will maintain clear skies overnight with near persistence low temperatures falling to match dew points tonight. a few mid 40s in cooler rural areas, but mostly ranging from upper 40s north to mid 50s in the southeast. Quiet weather with stacked dry ridge over the area and seasonable temperatures today will be with us a bit longer. With the high overhead, another mostly sunny day is on tap, with light winds and highs a couple of degrees warmer as we cut off the cool air advection and the airmass begins to modify.
This is all associated with the low level frontal lift through about the 925mb level.
322 PM CDT Tue Oct 3 2017 The cold front that brought us widespread rain and thunderstorms the past couple nights has pushed south of the area, and cool northerly winds continue to filter in behind it.
The upper-level ridge will be the dominant feature through the remainder of the work-week. Mid-level heights are forecast to remain in the 595-597dam range through late week with the center of the mid-level anticyclone shifting south over east TX. The upper-level ridge will become elongated from west to east late in the week as a strong trough moves east across the Rockies. As this trough moves into the Great Plains, the ridge will break down, retreating rapidly southwest toward the Baja Peninsula.
144 PM MDT Tue Oct 3 2017 Currently, the CWA is between two mid/upper lows seen on GOES 16 WV imagery early this afternoon. The first low which caused our wintery precipitation yesterday is located over northern ND while yet another strong upper low is spinning over central CA. Brief ridging over the area this afternoon in between systems with generally sunny skies and warmer temps. As the upper low over CA shifts NE into ID Wednesday, SW flow aloft will increase over the area. While mid levels will remain dry, enough moisture in the low levels combined with upslope flow to produce extensive low clouds and possibly some drizzle by late tonight into tomorrow morning.
114 PM CDT Tue Oct 3 2017 Some of the early morning convection along the cold front across western Kansas may push into western parts of central Kansas before waning somewhat after sunrise. The cold front will move slowly east across central Kansas during the day with renewed convection expected along the front this afternoon. The frontal boundary looks to become quasi- stationary near the Oklahoma border on Wednesday with upper ridging progged across the area.
307 PM EDT Tue Oct 3 2017 Surface analysis across the region features the dome of high pressure continuing to be anchored over the Appalachian Range and thus keeping eastern Kentucky under mostly clear skies, above normal temps, and relatively light winds. Otherwise, a warm, dry, and relatively cloud free forecast is on tap under a stubborn ridge of high pressure.
Cold front will move slowly south over northwest/west central OK terminals this evening and stall. Lower ceilings are likely after 00-02z as moisture continues to increase and low clouds form behind a cold front in northwest Oklahoma. /issued 253 AM CDT Tue Oct 3 2017/ Moisture advection ahead of a cold front today will result in mostly cloudy conditions or increasing clouds.
The start of the forecast period features a blocking pattern set up over western North America. Two upper troughs set up over Gulf of Alaska and the Canadian Prairies. Meanwhile, a ridge is set up over Central British Columbia and a cutoff low over Nevada. Being on the western side of the upper low over Nevada, we have been seeing strong NE-ly offshore flow over NW California. Stations over ridge top locations have been seeing wind gusts of 25 to 40 mph. Do expect daytime highs in the low 70s along the coast.
316 PM CDT Tue Oct 3 2017 Main forecast challenge in the near term is temperatures as high pressure slides over the area from the northwest tonight and Wednesday. The high was centered over Montana as of mid afternoon, and is expected to be centered over western South Dakota by morning, with the coldest temperatures likely occurring west of the James River Valley. With the high in place, dry conditions are expected both tonight and through the day Wednesday. Low temperatures tonight will range from the lower 30s across south central South Dakota, to around 40 degrees in west central Minnesota.
1252 PM CDT Tue Oct 3 2017 The axis of heavy rainfall set up from a Redwood Falls to Buffalo to Cambridge line overnight.
An upper low near Tahoe today has lifted the marine layer up to in excess of 5000' and plenty of stratocu remains behind along with temps that are well below normal. The low is expected to lift out tonight with light offshore flow developing Wednesday and lasting through the end of the week.
540 PM EDT Tue Oct 3 2017 High pressure will bring moderating temperatures and mainly dry weather through Wednesday afternoon.
a deep closed upper low is centered over the Central Valley near Sacramento and is initiating convection over the northern Sierra.
147 PM EDT Tue Oct 3 2017 High pressure will continue influence the region through Wednesday.
359 AM EDT Thu Oct 12 2017 An approaching weak cold front will move into the forecast area today, stall and dissipate because of upper ridging. The ridge will dominate over the weekend.
/ISSUED 322 AM CDT Thu Oct 12 2017/ After a couple of days with temperatures some 10 to 15 degrees below normal we will see a few warmer days with temps ranging from 5 to 15 degrees above the seasonal norms. South winds will increase today as low pressure deepens in the high plains in response to developing western trough. This will make for much warmer nights leading to warmer days.
That ridge will begin to push east tonight with a trough of low pressure approaching western Wisconsin by early Friday morning. Highs today will be kept in check due to the low clouds, so similar to yesterday.
124 AM EDT Thu Oct 12 2017 An approaching weak cold front will move into the forecast area Thursday, stall and dissipate because of upper ridging. The ridge will dominate over the weekend.
Much warmer air mass is now in place after a cold start. So look to have light winds near the trough line. So going by the wind field, low dewpoints, and better performing guidance, went near the cooler guidance. Forecast area under northwest flow aloft in between a trough across the Mid Atlantic and high pressure over Mexico.
Mid and upper level ridging is in place aloft with a stalled frontal boundary draped over the western edge of our forecast area.
340 AM CDT Thu Oct 12 2017 Breezy southerly winds continue across the eastern CWA as pressure gradient remains tight ahead of approaching cold front. For later today, the southerly winds will persist over the eastern CWA as the cold front approaches. Increased highs today a few degrees and sided on the higher end of guidance. Coolest readings will reside over the northwest CWA where cooler air will first arrive behind the passing cold front. This cool high pressure will keep temps on Friday in the upper 50s to low 60s.
323 AM MDT Thu Oct 12 2017 Upper level analysis has broad trof across the western CONUS with southwest upper flow across the Northern Plains. At the surface, a strong cold front is located from western ND into eastern WY. Strong cold front will continue to move through the forecast area today, exiting south central SD around mid afternoon. Temperatures will range from the 50s across the northwestern third of the CWA to the lower 70s across south central SD.
320 AM PDT Thu Oct 12 2017 Dry with temperatures a bit cooler than normal for next few days. High temperatures the next few days will be a few degrees cooler than normal owing to this cooler airmass.
546 AM CDT Thu Oct 12 2017 07z/2am surface map shows low pressure over western Pennsylvania, with a trough axis extending westward into central Illinois. Patchy drizzle persists within the weak convergence zone along the trough, and this trend is expected to continue through at least mid-morning. Have therefore gone with overcast conditions today, with high temperatures only reaching the lower to middle 60s. Low temperatures will drop into the lower 50s. With abundant sunshine and southerly flow returning to the region, much warmer weather is expected for Friday as afternoon high temperatures rise into the upper 70s to around 80 degrees. Meanwhile, a cold front draped across the Plains will slowly begin to approach from the northwest Friday night.
323 AM CDT Thu Oct 12 2017 A cold front will move through today. Further west, temperatures will be cooler in the 50s.
340 AM CDT Thu Oct 12 2017 This mornings water vapor imagery showed a deep longwave trof over the Pac NW with strong moisture flow on the front side into the northern Plains. a low pressure trof down along the northern/central high Plains.
322 AM CDT Thu Oct 12 2017 After a couple of days with temperatures some 10 to 15 degrees below normal we will see a few warmer days with temps ranging from 5 to 15 degrees above the seasonal norms. South winds will increase today as low pressure deepens in the high plains in response to developing western trough. This will make for much warmer nights leading to warmer days.
531 AM EDT Thu Oct 12 2017 Light rain chances are expected today under weakening low pressure.
An upper low which has been retrograding west across the central Bahamas will become sheared and elongate from central Cuba NE across the Bahamas as it bumps into an upper ridge over the central Gulf coast. There is a weak reflection at the sfc in the form of a sharp trough or even a spot low. More sunshine will allow high temps to reach the lower 90s over Orlando north and west. Low pressure near Wrn Cuba early Fri wl slowly move downstream from FL leaving an ascd trough extending Nwd from the Keys to the FL E coast.
Strong winds are being reported over the high elevations this morning, with gusts of 45 to 60 mph. Winds will increase at the lower elevations later today, with gusts of 20-30 mph expected along portions of the I-25 corridor and locations adjacent to the eastern mtns, and gusts of 30-40 mph in portions of the San Luis Valley. High temps today will be above average, with highs mostly in the 80s acrs the southeast plains and in the upper 60s to lower 70s in the high valleys.
249 AM CDT Thu Oct 12 2017 Above normal temperatures will return to Kansas today as southerly winds increase and bring warmer air into the region. Meanwhile current early morning water vapor satellite imagery shows an upper level trough over the northwestern states, which move eastward for Friday into the weekend across the central plains.
Tonight Through Friday Cold front that moved through the state yesterday helped to usher in a very cool airmass over the area today. May see some fog development, particularly across northern valley and lake areas, closer to the center of the high. As high pressure drifts northeast of the area, southerly winds will return to the area from west to east Thursday afternoon into Friday morning. By Friday however, temps will return to well above normal as the upper ridge inches back north toward the state and widespread south/southeasterly flow in place at the surface.
314 AM EDT Thu Oct 12 2017 Light rain chances are expected today under weakening low pressure.
Weak low level mixing underneath high pressure helps the low clouds persist despite subsidence aloft.
322 AM CDT Thu Oct 12 2017 The main story for today remains the low overcast conditions that cover the entire forecast area as of 08Z. The 925mb RH from the NAM and RAP have handled the low clouds very well to this point and they were followed closely for cloud trends and temperatures today.
/issued 310 AM CDT Thu Oct 12 2017/ Today have an upper ridge over the SE US with upper trough moving along the US/CAN border.
644 AM EDT Thu Oct 12 2017 High pressure will provide the North Country with mainly clear skies and cool temperatures today. Areas of frost will be likely away from the warmer waters of Lake Champlain tonight.
624 AM EDT Thu Oct 12 2017 High pressure will gradually bring drier air into the area today, ending the rain and clearing the skies.
146 AM EDT Thu Oct 12 2017 High pressure will gradually bring drier air into the area today, ending the rain and clearing the skies.
314 AM CDT Thu Oct 12 2017 We are still talking about this cold front that is moving southeast as slow as molasses in winter.
304 AM CDT Thu Oct 12 2017 Our nice taste of fall will continue today as upper ridging remains in place over the region. Dry air will continue today and highs will be in the 80s with some some upper 70s still possible across the northern sections of the forecast area(generally along and north of the Highway 82 corridor). There could be some lower 60s in the Highway 84 corridor, but still pleasant overnight conditions. /28/ Quiet weather is expected across the forecast area through much of the period, as high pressure at both the surface and aloft prevail across the region.
250 AM MDT Thu Oct 12 2017 Imagery shows a broad trof/ridge pattern (west to east) across the CONUS with WY/MT lying under/near the inflection point and WY under swrly flow aloft. Jet (90 to 110 kts) in place in the trof from nrn California to wrn WT and on up into Canada with a secondary but strengthening jet to the south ovr cntrl California/cntrl NV. The SFC has a long cold front that will push through WY today bringing light precip mainly over the nwrn Mountains.
234 AM CDT Thu Oct 12 2017 /Today and Tonight/ An upper level ridge will continue to build in from the east today and result in warmer temperatures across the entire region.
The combination of a stationary frontal boundary across the northwest Gulf of Mexico and a coastal trough across the western Gulf of Mexico will provide scattered showers and isolated thunderstorms along the lower Texas coast today. The coastal trough weakens by this evening as the surface flow becomes easterly late this afternoon. Near normal temperatures expected today with warmer than normal temperatures tonight and Friday.
A dry cold front will cross northern and western Utah this morning then stall.
228 AM MDT Thu Oct 12 2017 Strong upper level jet rounding the base of longwave trough over the Pacific Northwest and Northern Rockies will be nudging into our area this afternoon and tonight. The breezy to winds conditions will persist through Friday before the main trough tightens up and kicks out across the area.
1005 PM PDT Wed Oct 11 2017 Cooler and showery weather is expected for the rest of the work week.
/28/ A quiet evening is in store after the passing of that weak cold front into our area earlier today. /12/ Prior discussion below: Tonight and Thursday: The cold front continues to slip ever so slowly southeastward into the Pine Belt this afternoon. I wouldn't be surprised if a few of the cooler valleys up along the Highway 82 corridor tease the upper 40s by daybreak Thursday.
A sunny start to the day however will result in warming temperatures into the lower half of the 60s. Especially with an approaching cold front later in the day which should tend to scour out said clouds.
/28/ Our nice taste of fall will continue today as upper ridging remains in place over the region. Dry air will continue today and highs will be in the 80s with some some upper 70s still possible across the northern sections of the forecast area(generally along and north of the Highway 82 corridor). There could be some lower 60s in the Highway 84 corridor, but still pleasant overnight conditions. /28/ Quiet weather is expected across the forecast area through much of the period, as high pressure at both the surface and aloft prevail across the region.
425 AM CDT Thu Oct 12 2017 Ridging will continue today as the upper level high elongates across the southeast. Southwesterly winds will help to increase dewpoints from the low 50s to near 60 by this evening. Southwesterly flow around the upper high will bring moisture up from the Gulf starting Friday.
254 AM CDT Thu Oct 12 2017 Quiet weather is in store for the next several days as an UA ridge and its sfc counterpart remains overhead. As such, light and variable/calm winds were observed early this morning, and the cooler and drier airmass ushered in by a fropa a few days ago maintains its grip across the Four-State region, with reports of dewpoints in the 50s per 07Z metars. The cooler airmass will however begin to lose its grip later today as sfc winds returns to a southerly flow late this aftn/early this evening and subsequently, daytime temps will warm into the 80s /5-7 degrees warmer than yesterday/.
321 AM CDT Thu Oct 12 2017 07z/2am surface map shows low pressure over western Pennsylvania, with a trough axis extending westward into central Illinois. Patchy drizzle persists within the weak convergence zone along the trough, and this trend is expected to continue through at least mid-morning. Have therefore gone with overcast conditions today, with high temperatures only reaching the lower to middle 60s. Low temperatures will drop into the lower 50s. With abundant sunshine and southerly flow returning to the region, much warmer weather is expected for Friday as afternoon high temperatures rise into the upper 70s to around 80 degrees. Meanwhile, a cold front draped across the Plains will slowly begin to approach from the northwest Friday night.
453 AM EDT Thu Oct 12 2017 High pressure will provide the North Country with mainly clear skies and cool temperatures today. Areas of frost will be likely away from the warmer waters of Lake Champlain tonight.
This boundary will push east of the MO River by around 18Z, keeping the northwest corner of the forecast are in the lower to mid 60s for highs Thursday. Breezy conditions will again be the theme, out of the south well ahead of the cold front, and out of the northwest behind the boundary. Relative humidity values west of the Missouri River will fall into the low to mid 30 percent range behind the cold front. The cold front will slide to the eastern third of the cwa by 00Z Friday as southwesterly flow remains aloft with a significant trough over the western U. The low will bring some widespread light rain to the region. The upper trough will drag down some CAA, pushing H85 temps into the negative single digits Celsius by Sat evening.
240 AM EDT Thu Oct 12 2017 A few lingering showers tonight and Thursday and cooler. High pressure builds in for Friday and lasts into the weekend.
Cold front has moved to the east early this morning. Temperatures will be 10 to 20 degrees cooler today than yesterday with cooler air mass moving in. Most areas will have lows below freezing tonight with lows in the upper 20s.
138 AM EDT Thu Oct 12 2017 A few lingering showers tonight and Thursday and cooler. High pressure builds in for Friday and lasts into the weekend.
149 AM EDT Thu Oct 12 2017 Light rain chances are expected through Thursday under weakening low pressure. Mainly dry weather is expected Friday under a ridge of high pressure. Lingering low level moisture in SE flow should maintain a light rain chance through Friday, mainly across the higher terrain where an upslope component is progged.
Weak high pressure will bring warmer conditions today with highs in the low to mid 90s across the lower deserts. An upper-level trough across the western CONUS will keep dry southwesterly flow in place over the region. This trough will remain rather stagnant through Friday, which will keep weather conditions from changing much. Lower desert temperatures will drop from the low to mid 90s today to the upper 80s/low 90s by Friday.
634 AM EDT Thu Oct 12 2017 An approaching weak cold front will move into the forecast area today, stall and dissipate because of upper ridging. The ridge will dominate over the weekend.
/Issued 244 PM CDT Wed Oct 11 2017/ Fairly quiet weather is expected across the Panhandles through Friday thanks to an upper level high pressure system setting up across the upper Gulf of Mexico. This high pressure will also allow our temperatures to gradually warm back firmly in the 80s both Thursday and Friday.
Snow showers are forecast to continue through Friday and high temperatures will be even cooler than today at around 15 degrees below average.
333 AM EDT Thu Oct 12 2017 High pressure is positioned over Quebec while a warm front is draped along the Mason-Dixon Line. The high will slowly drift eastward while the front moves to the south.
306 AM EDT Thu Oct 12 2017 High pressure will build over the region today and will shift east on Friday.
340 AM EDT Thu Oct 12 2017 High pressure will gradually bring drier air into the area today, ending the rain and clearing the skies.
Onshore flow is expected to develop today which will usher deeper low level moisture into S TX along with warmer temps. MX temps will be around 10 degrees warmer today and a couple more degrees warmer Friday. Although not much upper support is expected today due to upper level high pressure, am expecting that increasing instability and the sea breeze will provide sufficient low level moisture convergence to produce isol SHRA's across mainly the southern CWA. Have extended the Coastal Flood Advisory through 12Z Fri to cover the high tides overnight and into early Fri morning. Anomalously strong mid- level ridging in place through the weekend allowing for heat and moisture to build across South Texas.
Some patchy fog is developing in places that haven't seen the low level clouds help with insulation overnight. But temperatures should be a few degrees cooler compared to yesterday with slightly cooler air being funneled in and the early morning sheltering from the low level clouds.
An upper level trough will continue to affect the region through the short term. With snow levels holding steady near 4000 ft, mountain valleys will see 1-2 inches of accumulation, while the higher terrain will average 2-5 inches; accumulation up to 7 inches are possible over 7500 ft. Breezy westerly winds are expected Friday afternoon as the disturbance's associated cold front exits east. An upper level trough will move through Friday night, bringing a round of showers and air cold enough for snow in the valleys.
310 AM CDT Thu Oct 12 2017 Today have an upper ridge over the SE US with upper trough moving along the US/CAN border.
We're seeing a moderate southwesterly flow in between high pressure downstream over southeastern states and a strong trough digging into the region from the north. We'll lose a few degrees off or our afternoon highs as the trough pushes through north of our area, but heights and thicknesses will continue to support temperatures well above average for mid October. As a matter of fact, they should rebound to levels at least 10 degrees above average by late in the weekend as high pressure rebuilds through portions of the desert southwest.
621 AM EDT Thu Oct 12 2017 Lingering showers and areas of drizzle behind a cold front. High pressure builds in for Friday and lasts into the weekend.
A trough of low pressure will remain over the region through Friday night. High pressure will then build over the area this weekend. Water vapor satellite imagery shows a mid level trough of low pressure over the forecast area with very dry air to the north. Meanwhile over the Pacific Northwest low pressure system is pushing into Idaho as another impulse dives down the Washington and Oregon coast. Over the next couple of days, the trough will gradually move to the east as the second, above mentioned disturbance rotates east over the Pacific Northwest.
243 AM EDT Thu Oct 12 2017 Lingering showers and areas of drizzle behind a cold front. High pressure builds in for Friday and lasts into the weekend.
Broad swly flow aloft will continue across the area, with deepening lee trough over the plains. Cold front will drop into nrn CO Wed afternoon, though boundary will remain north of the Palmer Divide until evening and thus no impact on srn CO wx during the day. An upper-level trough over the western US will continue to bring dry, southwest flow to southern Colorado Thursday night through Friday night.