Aikyam-Lab/Synoptic-Bench huggingface dataset:
230 AM MDT FRI SEP 16 2016 The surface cold front has exited the state to the south this evening and a ridge of high pressure has settled across most of the state, resulting in nearly calm winds and mostly clear skies. The mid and upper level trough will move off to the northeast across the Red River Valley of the North by Friday afternoon.
349 AM CDT FRI SEP 16 2016 Inverted trough axis is located roughly from just off the lower Texas coast to just inland the Louisiana coast according the latest water vapor imagery and upper air analysis. Rua Looks like a decent chance for widespread shower activity and a few storms today into Saturday, as inverted trough axis continues to move to the west-northwest, providing deep southeast flow over the forecast area, and keeping tropical like moisture in place, with PWAT values progged to be over 2. With the high moisture content in place, some locally torrential downpours will be possible producing locally heavy rainfall.
For today, the next cold front to affect our area is already ahead of schedule, having pushed thru nwrn zones. Where the cold front ends up later this afternoon will have a large influence on inital tstm development. Have followed suit and lowered pops across the board for today and tonight, with highest overall probabilities across far srn zones closest to expected position of cold frontal boundary, with lowest values across much of the Oklahoma Panhandle.
Stacked low pressure over North Dakota with rain and most of the clouds out of Montana this morning. Fairly weak high pressure will be over the state today for mild temperatures and generally light winds.
314 AM CDT FRI SEP 16 2016 Isallobaric surface pressure analyses shows trending Height Falls/Pressure Drops in the High Plains shifting eastward, as models track our next storm system into/across the Great Lakes tonight-Saturday.
A trailing upper trough drapes across the Great Basin into central California. No moisture is associated with trough so Nevada will remain dry. The trough will allow a bit of cold advection into the region, keeping high temps in the 60s today in many places, and low 70s in the warmer spots like valleys of central Nevada and lowland of Humboldt County. The trough will exit the region quickly and be replaced by a weak east-west oriented ridge with zonal flow over the top.
1228 AM CDT FRI SEP 16 2016 A warm front will spread rain with a few embedded thunderstorms across the forecast area overnight. The waves of showers and isolated storms will continue through friday as an area of low pressure slowly drifts east across the region. Our upper low pressure system lingers into Friday night and Saturday, with one last surge of theta-e advection and instability exiting out of the area Friday evening.
Weak low pressure area over the offshore waters early this morning is expected to move inland during the day. Weak and broad area of low pressure located across the NW Gulf this evening will continue to slowly west tonight/tomorrow with S TX remaining on the western side of the system.
Thunderstorm chances continue for much of Friday night into early Saturday morning along and ahead of the cold front pushing through the region.
Radars showing shower/storm development out west this evening with a short wave trough kicking northeast across South Dakota through the night. While the cold front exits east pretty quickly Friday morning, chances for showers and even a few thunderstorms will remain as the 500MB low moves over eastern ND 15-18Z Friday.
444 AM EDT Fri Sep 16 2016 Southerly flow on the backside of high pressure will bring an increase in humidity today, then a chance for showers and thunderstorms tonight. A muggy weekend is in store with occasional showers and thunderstorms as a cold front will be slow to advance east up the Ohio Valley. Temperatures will be warmer that yesterday, ranging from the lower 80s in the north to the upper 80s across nrn KY. As the s/w works e tonight, it breaks down the upper ridge over the Ohio Valley. Temperatures on Saturday will be cooler with the pcpn and cloud cover.
350 AM CDT FRI SEP 16 2016 Low pressure is centered over the area early this morning, with showers and thunderstorms moving across the eastern CWA. Through the day, low pressure will move east across ND with continued chances for showers across mainly the northern CWA. Warmer temps aloft begin overspreading the region as well, so will see temps rebounding into the 70s and low 80s.
620 AM EDT FRI SEP 16 2016 High pressure overhead this morning will shift offshore this afternoon making for a sunny day. Fair weather continues tonight as the high remains nearby. A cold front approaches late Saturday but it should remain dry during the day.
Will continue the higher POPS in that region toward the early morning hours of Friday.
1027 AM EDT TUE AUG 30 2016 High pressure centered over the Eastern Great Lakes is forecast to keep dry weather over the area today. The threat of showers and thunderstorms will return Wednesday with a cold front.
Weak trough that brought -SHRA and a few short-lived -TSRA through central MT overnight is now east of KHVR, taking the remaining -SHRA along with it. High pressure ridge remains parked over central/eastern MT, with spotty pockets of moisture moving through southwest flow aloft to give SCT/BKN mid- level clouds today.
1032 AM EDT Tue Aug 30 2016 High pressure will remain over the Mid Atlantic today, moving offshore Wednesday ahead of an approaching cold front. The cold front will move through the area Wednesday night. High pressure returns late in the week, lasting through the weekend. High pressure the main surface feature today impacting the region, resulting in predominately dry conditions. High pressure will continue to control the weather of the Mid Atlantic tonight and Wednesday. Change comes to the area Wednesday night to usher out meteorological summer/welcome met autumn as a cold front slides down from the northwest.
854 AM CDT TUE AUG 30 2016 A cold front is slowly sinking southward this morning as a Canadian high pressure building into the region. A few CAMS are suggesting the cold front will stall today with isolated thunderstorms possible across southern SD. The Canadian high pressure and upper level ridging will dominate the rest of the short term portion of the forecast.
738 AM EDT Tue Aug 30 2016 Fair and seasonable late summer weather is expected today as high pressure drifts atop and east of the area.
827 AM EDT TUE AUG 30 2016 Weak high pressure today. Cold front slides through Wednesday night. Drier and cooler weather to end the week. Weak high pressure over the area today. Main player for the short term is a cold front which will cross the forecast area Wednesday night. For the day Wednesday, we will be in the transition time period between current high pressure exiting and cold front approaching from the northwest. Showers and storms associated with the cold front will cross Wednesday evening and overnight.
A tropical cyclone is forecast to develop in the Gulf of Mexico and move NE across North Florida and offshore the Carolina coast mid to late week. Behind the cyclone, drier cooler high pressure will build in for most areas this weekend. Previous discussion: Weak upper ridge axis to our north will weaken and shift west today. High temperatures are forecast a few degrees above normal, in the lower 90s. Upper low will remain along the Carolina coastline tonight into Wednesday. Would expect best probability for precip will be across the east and southeastern counties closer to the areas of low pressure.
1011 AM EDT Tue Aug 30 2016 High pressure will remain over the Mid Atlantic today, moving offshore Wednesday ahead of an approaching cold front. The cold front will move through the area Wednesday night. High pressure returns late in the week, lasting through the weekend. High pressure the main surface feature today impacting the region, resulting in predominately dry conditions. High pressure will continue to control the weather of the Mid Atlantic tonight and Wednesday. Change comes to the area Wednesday night to usher out meteorological summer/welcome met autumn as a cold front slides down from the northwest.
633 AM CDT TUE AUG 30 2016 The cold front is just about to exit the Wisconsin portion for the forecast area. At 07Z/2am, the cold front was moving through the region and was located from Grand Marais southwestward to just east of Brainerd. Behind the front, high pressure was building across the region. As the high pressure continues across the region this afternoon, the morning clouds will give way to mostly sunny to sunny skies. The high pressure affects the region tonight and Wednesday. Much cooler and drier air will accompany the high.
Strong high pressure in the eastern Pacific will result in above normal temperatures the next few days, particularly across southeastern California.
Current analysis shows east to northeast flow inland and east to southeast flow along with coastal areas with an inverted trough from our southern counties to offshore of SE GA. Water vapor imagery shows upper level low slowly meandering northward with subsidence on the southwest side providing ample conditions for low stratus and patchy fog over inland SE GA which is dissipating. Easterly winds in the low levels show 20-25 kt and with convection moving onshore it is reasonable to anticipate some occasional gusts of 35-50 mph today in showers and storms. As trough of low pressure pivots northward today over the coastal waters.
637 AM CDT TUE AUG 30 2016 Much like we have witnessed during the past few days, cooler temperatures aloft combined with strong daytime heating of moist airmass has given way to diurnal thunderstorm development. Meanwhile upper level ridge will amplify over the central US, with a short wave trough sliding southeast across the upper Mississippi valley/Great Lakes region. This will push a cold front southward across the central plains on Wednesday with decent chances of thunderstorms once again.
1037 AM CDT TUE AUG 30 2016 Mostly clear skies this morning a big change from the last few days, where cloud cover associated with the upper low along the TX Gulf coast had been lingering. Expecting less in the way of coverage of convection today, as we will likely not see the influence of the upper low or the sea breeze this far n. Temps across the region ranging from the low 80s across the w to the upper 80s across the ern portions.
933 AM EDT TUE AUG 30 2016 Weak high pressure today. Cold front slides through Wednesday night. Drier and cooler weather to end the week. Weak high pressure over the area today. Main player for the short term is a cold front which will cross the forecast area Wednesday night. For the day Wednesday, we will be in the transition time period between current high pressure exiting and cold front approaching from the northwest. Showers and storms associated with the cold front will cross Wednesday evening and overnight.
/issued 524 AM CDT TUE AUG 30 2016/ Low/Mid level trof axis continues to sink SWD along the lower TX coast this morning, while the upper low continues to spin over the NW Gulf, albeit farther south than it was 24 hrs ago. Flow across the CONUS is forecast to become more amplified mid to late week, with a deep layer ridge building over the Central US and a corresponding downstream TROF, the latter of which will assist in lifting whatever becomes of TD Nine out across the NE Gulf.
Have omitted mention of VCTS from the area terminals given the low confidence/isolated nature of the convection.
An upper level high that has been centered over our region for the last few days will finally start to shift west and weaken today into tonight. Meanwhile, an upper level low pressure system over Manitoba will slide southeast into Ontario and Quebec.
We think the upper level ridge will suppress clouds and deep convection, but short range models hint at isolated development for the Plateau, Upper Cumberland, and perhaps our far west counties. Otherwise, with plenty of sunshine, temperatures will climb to the low to mid 90s, except upper 80s Plateau. Upper high remains across the region today/tonight while high pressure at the surface to north provides a bit drier northeast wind.
627 AM CDT TUE AUG 30 2016 A cold front is slowly sinking southward this morning as a Canadian high pressure building into the region. A few CAMS are suggesting the cold front will stall today with isolated thunderstorms possible across southern SD. The Canadian high pressure and upper level ridging will dominate the rest of the short term portion of the forecast.
Temperatures had dipped into the lower 40s in central North Dakota with Hazen reporting 41. At upper levels, a ridge was building over the Rockies as a low pressure center/trough approaches the western British Columbia/Washington coast.
619 AM CDT TUE AUG 30 2016 The cold front is just about to exit the Wisconsin portion for the forecast area. At 07Z/2am, the cold front was moving through the region and was located from Grand Marais southwestward to just east of Brainerd. Behind the front, high pressure was building across the region. As the high pressure continues across the region this afternoon, the morning clouds will give way to mostly sunny to sunny skies. The high pressure affects the region tonight and Wednesday. Much cooler and drier air will accompany the high.
/Issued 342 AM CDT TUE AUG 30 2016/ Upper level ridge remains in place this morning with moist low level airmass persisting.
916 AM EDT TUE AUG 30 2016 KBYX detects scattered showers over the Lower and Middle Keys, as well as over nearshore and offshore waters surrounding the Lower and Middle Keys. Temperatures are in the lower to mid 80s.
734 AM EDT Tue Aug 30 2016 Warm and dry weather is expected until the passage of late Wednesday cold front. Otherwise, high pressure should maintain dry and warm weather today as it slides east across the northeastern CONUS. Increased POPs to the high chance category, and opted for scattered coverage wording in the forecast for showers and thunderstorms.
1039 AM EDT Tue Aug 30 2016 Fair and seasonable late summer weather is expected today as high pressure drifts atop and east of the area.
Another warm and sunny day is in store for the region with valley locations approaching the low to mid 90s. Chattanooga Airport, TN 94 71 94 72 / 10 10 10 10 Knoxville McGhee Tyson Airport, TN 93 70 92 70 / 10 10 20 20 Oak Ridge, TN 93 71 92 70 / 10 10 20 20 Tri Cities Airport, TN 90 67 88 66 / 20 10 30 20.
/issued 234 AM CDT TUE AUG 30 2016/ A strong upper ridge will persist over the Mid-South today. With the ridge being centered over the area, expect convection to be suppressed for the most part. The upper ridge will begin to retreat to the south and west tonight. This will allow a cold front to approach from the north on Wednesday.
752 AM EDT TUE AUG 30 2016 Aviation A slow moving cold front will bring scattered showers and thunderstorms along with warm and humid conditions today into tonight. The front will move south of the area by Wednesday afternoon and north winds behind it will deliver cooler and less humid air for the rest of the week. Fcst soundings reveal deep skinny cape and high freezing levels, and storms should be very slow movers.
1040 AM EDT TUE AUG 30 2016 High pressure will bring another period of warmer than normal and mainly dry weather into Wednesday.
931 AM EDT Tue Aug 30 2016 Warm and dry weather is expected until the passage of late Wednesday cold front. High pressure will maintain dry and warm weather today as it slides east across the northeastern CONUS. Increased POPs to the high chance category, and opted for scattered coverage wording in the forecast for showers and thunderstorms.
A ridge of high pressure over the Great Basin will hold in place through today, before shifting east tomorrow. An upper level trough of low pressure will move across the region this weekend. High pressure currently in place (per morning water vapor and H5 analysis) will slowly weaken and shift east over the next 24 hours as an upstream trough nosing into the PacNW continues to amplify and carve inland. In the mean time today will be dominated by the influence of the high aloft and its attendant mid level subsidence. Outside of the aforementioned uptick in high clouds in the north and development of shallow cu over the highest terrain, looking at a very warm and dry day today across the area with afternoon maxes pushing 10 degrees above climo.
741 AM EDT TUE AUG 30 2016 High pressure will bring another period of warmer than normal and mainly dry weather into Wednesday.
Pseudo warm front will lift north across the area today with 850 mb flow increasing 20 knots out of the south. The tropical cyclone will begin to lift more northward tonight well out over the Gulf.
531 AM MDT TUE AUG 30 2016 Weak upper disturbances rotating around the anticyclone centered over Oklahoma and a very moist air mass will combine to produce scattered thunderstorms over the region today through Wednesday.
1219 PM EDT Tue Aug 30 2016 Warm and dry weather is expected until the passage of late Wednesday cold front. High pressure will maintain dry and warm weather today as it slides east across the northeastern CONUS. Increased POPs to the high chance category, and opted for scattered coverage wording in the forecast for showers and thunderstorms.
Today 08z water vapor shows subtropical moisture continuing to stream into West Texas on upper ridge over Ohio Valley and weak upper low over Colorado. looks like most with get into the high 70s with a few low 80s in the eastern zones.
737 AM EDT TUE AUG 30 2016 High pressure over the eastern Great Lakes will move off the east coast. A cold front from the upper midwest will sag across the area on Wednesday.
636 AM CDT Tue Aug 30 2016 Upper level low still churning over the Upper Texas Coast this morning. SHRA/TSRA still possible mainly south of KIAH today with the influence of the upper low. Overpeck An upper low located off the Upper Texas coast will help keep chances for showers and thunderstorms over Southeast Texas today. Because of the vicinity of the upper low, and an abundance of moisture, best rain chances will be over the southwestern counties. Although there are some differences in the model solution, a consensus has the upper low moving southward and shearing out over the next couple of days. In turn, an upper ridge will extend into Texas from the northeast during the mid week period to help dry out and bring a return to afternoon temperatures in the 90s.
A cold front will move through on Wednesday as an upper-level trough moves from the Canadian Prairies to the U.
940 AM CST Tue Dec 27 2016 The cold front has moved south of the CWA as of 930 AM, with north winds observed across all of the Mid-South. /issued 257 AM CST Tue Dec 27 2016/ Currently a slow moving cold front had just passed through Savannah Tennessee and Clarksdale Mississippi. In the past 24 hours the highest rainfall amounts were seen across the north.
714 AM EST Tue Dec 27 2016 This mornings cold front will drive temperature back to seasonal levels. A Wednesday night cold front will drop temperature further, and will usher in snow shower chances to close the week. A dawn update was issued to further adjust clouds and precip probabilities with the front crossing the ridges.
943 AM EST Tue Dec 27 2016 A cold front exits this morning.
955 AM CST Tue Dec 27 2016 Observed temperatures in the northwest, where the greatest fresh snowfall of 12 to 18 inches fell during the Christmas blizzard, are climbing slower than most other areas and were about 2 to 4 deg cooler than prev hourly curve forecast. Minimal impacts expected today as mid level short wave ridge transits the forecast area. As trough deepens over the mid west region comes under increasing nw flow aloft.
Minimal impacts expected today as mid level short wave ridge transits the forecast area. As trough deepens over the mid west region comes under increasing nw flow aloft.
It's gonna be chilly tonight as we all fall into the low 30s, but winds should become calm so it should be all that bad.
However, in the lower levels, PWATs are progged to increase to around 1. The higher PWATs/deeper moisture are forecast to shift north of the area tonight, but a sufficient amount moisture will remain in place for weak isol shras across the western CWA. For now will not mention dense in the forecast due to the low confidence of occurence.
246 AM PST Tue Dec 27 2016 Temperatures will gradually warm through mid week due to weak high pressure over the area while dry conditions continue. The weather becomes more unsettled by late this week as low pressure systems are expected to move over the region.
The cold front is located near I-20 this morning with showers and thunderstorms located in the vicinity of this feature.
Coupled with ridging building in, temperatures are considerably milder across most of interior NorCal compared to 24 hours ago.
and temps will be several degrees cooler than yesterday. Chattanooga Airport, TN 63 39 60 46 / 80 20 20 60 Knoxville McGhee Tyson Airport, TN 60 35 57 43 / 80 10 10 60 Oak Ridge, TN 60 35 57 43 / 80 10 10 60 Tri Cities Airport, TN 60 32 54 40 / 80 10 10 60.
/issued 257 AM CST Tue Dec 27 2016/ Currently a slow moving cold front had just passed through Savannah Tennessee and Clarksdale Mississippi. In the past 24 hours the highest rainfall amounts were seen across the north.
551 AM EST Tue Dec 27 2016 Cold front will shift east of the region this morning. Temperatures will be closer to seasonal values through midweek, before a second cold front brings snow shower chances and below average temperatures for the end of the week. Cold front continues to move eastward across the region this morning. An area of more moderate rain, coinciding with the entrance region of an upper level jet streak, will support the continuation of Categorical PoPs and higher QPF values over the northeastern WV and southwestern PA ridges.
It's not hard to find the cold front this morning, as it is marked by a narrow band of strong showers and thunderstorms, with heavy downpours. At 3 am, the cold front stretched from near Celina, to Smyrna and Linden, and was continuing to march to the east. Highs today are expected to be in the lower to middle 50s, with our most southern and eastern areas likely to see their high temperatures early this morning.
634 AM EST Tue Dec 27 2016 A cold front exits this morning.
624 AM EST Tue Dec 27 2016 High pressure ridging into the area from the Atlantic will move south today allowing a cold front to cross the area tonight. The front may push just south of the CSRA before returning northward as a warm front Wednesday night.
633 AM EST Tue Dec 27 2016 The cold front will move east of the area today and high pressure will build into the region.
Fairly dry above the low levels, so expect some sunshine this afternoon, which will push temperatures through the 70s, to around 80. The exception will be along the beaches, where the fog may linger through the afternoon, resulting in cooler temperatures.
515 AM CST Tue Dec 27 2016 08z/2am surface analysis shows 990mb low over western Quebec, with trailing cold front approaching the Appalachians. A piece of energy associated with a vigorous upper low currently over British Columbia will dig southeastward across the Northern Plains/Upper Midwest on Wednesday, pushing a cold front toward Illinois. Ahead of the boundary, southerly winds will bring warmer air into the region, resulting in afternoon high temperatures in the middle to upper 40s.
Tonights lows will once again drop to around freezing or slightly above which is still about 10 to 15 degrees above our normal low for this time of year.
A cold front advancing into the southeast CONUS will pivot to become more east to west oriented by tonight and remain north of our CWA as the mid to upper flow becomes zonal.
541 AM CST Tue Dec 27 2016 At 08z, a surface cold front was well southeast of our region with ridging associated with high pressure centered over KS building in. The center of high pressure is expected to move into southeast MO by late this afternoon, maintaining westerly flow into the afternoon before backing southwest by nightfall.