Aikyam-Lab/Synoptic-Bench huggingface dataset:
407 PM CST Tue Feb 20 2018 Freezing rain is expected to end across central Oklahoma by the early evening. However, as temperatures continue to cool across southern Oklahoma this evening, some of the precipitation will change to freezing rain. By early Wednesday morning, freezing rain is expected to develop across north Texas and southern Oklahoma as another wave approaches the southern Plains. Overall, precipitation amounts are expected to be much lighter than today, but enough elevated instability may result in areas of moderate to heavy freezing rain.
1010 AM EDT Sun May 14 2017 High pressure will build today and then prevail throughout the week. Today: Latest satellite imagery and surface obs indicate low clouds lingering across southeast GA but expect improvement through the day as drier air filters in with high pressure from the north and west. Highs should reach the lower to mid 80s most locales away from the cooler coastal areas.
East Central Florida Forecast Discussion 917 AM EDT Sun May 14 2017 Deep drying aloft ascd with passage of a mid level short wave trough will push best avbl moisture well east of the area by afternoon. A weakening frontal trough evident on morning vis imagery over Volusia and Northern Lake counties will drift Swd into the forecast area and there may be enough lingering LL moisture combined with daytime heating to produce an isolated shower this afternoon. Highs will range from the lower 80s along the immediate Volusia coast to the lower 90s over the south interior. Briefly MVFR CIGs possible through midday as the weak frontal trough pushes to the I-4 to Space Coast region. A weak frontal trough over the Central FL waters will wash out late today.
1017 AM CDT Sun May 14 2017 All is quiet across the Lower Miss Valley on this Mother's Day morning with temperatures quickly warming into the lower to middle 70s at the 10am hour. /issued 747 AM CDT Sun May 14 2017/ For the ArkLaTex, calm or L/V wind will linger this morning as high pressure is drifting over the MS river near KMEM.
725 AM EDT Sun May 14 2017 High pressure will build today and then prevail throughout the week. Mid level heights will rise enough to support highs in the lower to mid 80s.
Quick update to increase PoPs across the central as elevated convection has increased over the past hour as the cold front has caught up with greater instability associated with the EML and marked by MUCAPE values around 500-1000 j/kg. A dry, breezy and cooler day is expected in the wake of the front.
Through midweek, high pressure will remain in control as an upper level ridge builds across the region.
1058 AM EDT Sun May 14 2017 High pressure and drier air will be dominating the area the next few days. Boundary layer appears slightly warmer than yesterday. An anomalously deep upper low developing off the New England coast and northwest flow aloft continues across the region through Monday. A short wave trough may move through the area during the day but air mass appears dry and with weak instability.
Surface analysis this morning places a 1018 mb ridge of high pressure over the Lower Mississippi Valley.
Morning temperatures shooting up quickly and were already in the low-mid 70s at 9 am. Temperatures warm a few more degrees into the low to mid 80s this afternoon (warmest from Peoria to Springfield west). Comfortable humidity levels again today with dewpoints in the low to mid 50s. Meanwhile upper level ridge builds over IL as 500 mb heights rise to 580-582 dm on Monday. Strong upper level ridge over IL Monday to help push boundary over northern IL back north into WI/MI. Lows Monday night in the lower 60s. A large upper level trof digging over the Rockies during mid/late week with upper level ridge shifting toward the East Coast.
The axis of an upper trof extending from the northeast Gulf to the New England area moves off into the western Atlantic as an upper level ridge over the central states advances eastward somewhat. Lows tonight range from the upper 50s well inland to the lower 60s closer to the coast.
1218 PM EDT Sun May 14 2017 Low pressure will remain off the New England coast through Monday. High pressure will begin to build over the mid-Atlantic region on Monday, shifting offshore by mid-week.
An area of high pressure will remain over the region.
Thermal ridge axis will be over the fa and with warm start any solar should result in another warm mothers day for all but the far north. Hope all Moms have a great day! Weak high pressure Monday should keep most areas dry with temperatures continuing well above average.
Confident that an upper level trough will move slowly across the WRN CONUS during the period while a N-S oriented upper ridge axis moves east of the CWA/MSA Today.
and Monday Canadian high pressure and an upper level ridge will bring quiet weather on Mother's Day, with partly cloudy skies and mild temperatures. Highs should be in the middle 60s northeast to the lower to middle 70s southwest.
Upper air analysis showed a deep longwave upper trough across western Canada and extending south into the western states. The first wave has forced a Pacific cold front out of the northern Rockies toward the northern and central High Plains. Ahead of this, surface dewpoints are progged to increase into the lower 60s which appears partly due to evapotranspiration as strong moisture return from the gulf is not all that apparent.
628 AM CDT Sun May 14 2017 Warming trend continues today with deep upper ridge parked overhead. This feature will make little eastward progress over the next 36 hours but will continue to deepen slightly, allowing temperatures to rise into the lower and middle 80s today and upper 80s to near 90 on Monday. The upper ridge will flatten somewhat by Monday evening, allowing the first in a series of several upper disturbances to track into the area throughout the week.
Resultant highs slightly warmer than normal in the low to mid 80s for most locales. Monday should moderate even warmer in the mid to upper 80s (possible low 90s in the south).
/issued 515 AM CDT Sun May 14 2017/ (Today and Tonight) The forecast for the next 24 hours is dry and warmer. This will help hold overnight lows mainly in the lower to mid 60s.
1024 AM EDT Sun May 14 2017 High pressure will slide south of the area today. A weak and dry cold front will move through from the north tonight.
611 AM CDT Sun May 14 2017 An upper level ridge is currently centered over the region early this morning.
/Today through Tonight/ Yet another dry and warm day today across forecast area as a large upper level ridge remains in place across the region.
Thus the ely flow and cold front will shift wwd over srn WI tnt.
1154 AM CDT Sun May 14 2017 Quiet weather continues across South Texas courtesy of upper level ridging. Confident that an upper level trough will move slowly across the WRN CONUS during the period while a N-S oriented upper ridge axis moves east of the CWA/MSA Today.
952 AM EDT Sun May 14 2017 High pressure returns today and remain over the region through midweek.
Gusty northwest winds will develop by late morning as the pressure gradient tightens up between high pressure approaching from the west and a deepening coastal low. Western trough is projected to amplify and drift toward the Central CONUS by late in the week, pushing upper ridge from Mid-West to Eastern CONUS. Much warmer temperature and dry weather may be anticipated for much of the period. VFR conditions are expected through tonight as surface ridging slowly builds in, though crossing mid level clouds and a few diurnal cu are expected on the wrn side of an upper low moving across the NE CONUS. Restrictions are possible with the approach of a late week cold front.
High pressure will continue to ridge down the lake from Lake Superior. Thus the ely flow and cold front will shift wwd over srn WI tnt.
A slightly drier day is in store for much of the area, with slightly warmer temperatures. Isolated showers developing this afternoon in the higher elevations of Baker County and the West Central Mountains. A splitting upper trough will keep showers in the mountains while valleys dry out through Monday. For Sunday night into Monday a weak boundary over s-central Idaho (associated with the southern part of the splitting trough) will be the focus of light shower development from the ID/NV border to the eastern Boise mountains. Slightly warmer surface conditions will fuel a slight chance for thunderstorms in central Idaho.
Later today, high temperatures should warm into the lower 80s. Given the above mentioned surface/upper high over the region and general on-going subsidence, few - if any clouds are forecast (and that would be during and just after the time of maximum warmth). Typical diurnal to nocturnal transition in temperature will prevail tonight as the aformentioned ridge prevails through the short-term.
Warmer low temperatures can also be expected tonight due to continued southerly winds, slightly higher surface dew points, and possibly some mid level cloudiness, particularly across northeast MO due to low-mid level warm air advection.
941 AM EDT Sun May 14 2017 Low pressure will remain off the New England coast through Monday. High pressure will begin to build over the mid-Atlantic region on Monday, shifting offshore by mid-week.
Cooler than normal seasonable temperatures will limit convective development today until disturbance moves through the area later tonight for a few elevated thunderstorms. For the past several days models have been in good agreement with a wrapped up strong consolidated upper low moving from the Pacific NW into Southern Idaho and then slowly across Wyoming, with progress held up by amplified downstream ridge.
One possible source for such lift could be a "reverse" cumulus line later this afternoon near or downwind of the lower Keys should sufficient heating and low-level shear allow Lower Keys differential heating circulations to mature. The differences in observed wind velocity are due to a complex mesoscale pressure pattern involving a weakening large-scale trough, some showers and thunderstorms across the Straits of Florida, and heating over the southern Florida Peninsula. As the clouds clear, afternoon heating could lead to shower and thunderstorm development in the lee of the lower Keys. On this date in Florida Keys weather history, in 1917, the low temperature in Key West was 65 degrees.
A low pressure system moving into California will result in below normal temperatures and fairly widespread gusty southwest winds across the area today.
08z surface analysis indicates a ridge axis extending from just east of Shreveport, to near Saint Louis. Together with a mid level ridge extending over the mid south to the mid mississippi valley region, these features will prohibit precipitation across the forecast area during this period.
The forecast area will see a return to Southerly winds as the high shifts East toward the Atlantic Coast into the first part of the coming work week.
Mid level ridge had move off to the east, and now we will see a bit more influence from disturbances moving out of the trough over the western United States. One closed low was over southern British Columbia and another was over southwest Alaska. Highs are somewhat tricky, as a weak cold front pushes in from the northwest.
Models continue to come in with highs in the low 90s for the South Plains with mid 90s for the Rolling Plains.
934 AM EDT Sun May 14 2017 Weak Low pressure that has developed on the cold frontal boundary just off the NE FL coast will slowly drift further offshore as the frontal boundary continues to drift south. High pressure builds in tonight with mostly clear skies and light winds, which may result in some patchy fog late tonight.
Currently, isolated shower activity associated with a weak pre- frontal trough is maintaining most of the activity over the western portion of Collier County and the interior overnight. This pre-frontal trough will continue its forward progression during the night hours before sunrise producing isolated to scattered showers mainly to the west. Ridge settles over the southeast plains with Atlantic high pressure strengthening by mid week.
836 AM EDT Sun May 14 2017 Water vapor imagery this morning shows an amplified pattern aloft across the country, with troughing across the west, followed by a ridge over the central U. , and then an elongated trough across the east coast. Florida resides right at the tail end of the latter trough, with ridging beginning to build eastward from the central Gulf. At the surface, low pressure continues to move off the New England coast, with a trailing cold front still hanging around the Florida peninsula. High pressure is moving into the southeast behind these features. High pressure will move into the region later today and remain in place for the next few days, with light winds and seas and no headlines expected.
747 AM CDT Sun May 14 2017 For the ArkLaTex, calm or L/V wind will linger this morning as high pressure is drifting over the MS river near KMEM. The forecast area will see a return to Southerly winds as the high shifts East toward the Atlantic Coast into the first part of the coming work week.
1105 AM EDT Sun May 14 2017 A weak cold front will move into the northern part of the region today. A ridge of high pressure will then allow for above normal temperatures and mostly dry conditions through mid week. A weak cold front is forecast to push into the northern part of the CWFA late this afternoon and this evening. Adiabatic mixing through this level would yield highs in the lower 80s. Thus, highs this afternoon will range from the upper 70s far north/northeast, to the lower 80s elsewhere. Although Monday will be another warm day with above normal temperatures expect slightly cooler temperatures across northeastern portions of the forecast area where weak front had worked into the region. Upper ridge will translate across the region early in the period.
710 AM EDT Sun May 14 2017 Aviation High pressure will build in today with fair weather continuing through Monday.
The eastern flank of a synoptic scale amplified ridge will prevail across the Southeast today. Meanwhile, a pair of troughs on each side of the CONUS will be deepening over either seaboard showing evidence of a developing Omega block pattern later in the week. After overnight lows in the upper 40s/low 50s, sunny conditions will act to warm temperatures rapidly today with daytime highs rising into the low to mid 80s. Typical diurnal to nocturnal transition in temperature will prevail tonight as the aformentioned ridge prevails through the short-term.
953 AM EDT Sun May 14 2017 High pressure returns today and remain over the region through midweek.
Glorious weather is in store for Mother's Day, with mostly sunny skies, fairly low humidity, and highs in the low to mid 80s this afternoon. Upper ridging continues to build into the region on Monday, and it'll be another warm day with plenty of sunshine.
This afternoon and evening, a strong mid level ridge of high pressure will begin to build into the western Gulf of Mexico as the trough associated with the recent front dissipates across southern Florida. At the surface, weak high pressure will build in north of the area, setting up west winds today that will turn to northerly tonight and northeasterly by Monday. Under mostly sunny skies, temperatures will run a couple degrees warmer Monday afternoon.
711 AM CDT Sun May 14 2017 The high pressure ridge is progged to move off to the East today as a short wave will be approaching the area.
Forecast area continues to be under the influence of an upper level trough.
1105 AM EDT Sun May 14 2017 Hydro High pressure will build in today with fair weather continuing through Monday.
1008 AM EDT Sun May 14 2017 Broad scale high pressure will build over the region today and persist over the region through the work week. This will allow temperatures to climb well above normal and diurnally driven convection to be possible each day, with the greatest chances over the higher terrain. Some afternoon cumulus are possible over the higher terrain in response to diurnal heating, but it is doubtful anything would develop into an actual shower. As of 230 AM EDT Sunday: the short term fcst picks up at 12z on Monday with broad upper trofing slowly moving off the New England Coast, while steep upper ridging begins to spread over the fcst area from the west.
341 AM EST Thu Nov 30 2017 Breezy northwest winds will continue this evening following a departing cold front.
Weak front is now quasi-stationary across central Kentucky, as the high center is already scooting farther east and winds have shifted to the ESE ahead of the next system moving into the mid-Mississippi Valley. Scattered to numerous showers will be characterized by high-end chance or low-end likely POPs and low QPF, and temps will only be a few degrees cooler than today with increased cloud cover but not much change in air mass.
The trough may pass through far northwest AL before much in the way of precipitation can occur there, so our highest PoP (chance to likely) will be across the southeast 2/3 of our forecast area on Thursday. The Pacific cold front will follow quickly behind the during the afternoon into the evening, ending the precipitation from northwest-southeast. High pressure will advance from the central Plains into the Ohio Valley behind the front. Being of Pacific origin and only a modest north-northeast flow in low levels, although cooler temperatures on Friday will still remain just above normal.
A strong upper wave is pushing through the northern plains, and its associated cold front is crossing the CWA this afternoon. With pressure rises of 3-5 mb/3hr behind the cold front, northwest winds are strong across northwestern SD and northeastern WY. As cooler air pushes into the area, lows will dip into the teens and 20s. For the rest of the week and into the weekend, weak upper ridging to zonal flow will keep weather dry and mild.
1212 AM EST Thu Nov 30 2017 A cold front, will bring showers to the area this afternoon and evening.
High pressure will bring dry and mild weather through the end of the work week.
A cold front will bring rain chances to central Indiana tonight and Thursday.
The areas of dense fog expected to dissipate across Southeast Texas and Western Louisiana around 6 AM or so as slightly cooler and drier air filters slowly westward. The chance of showers will end from west to east as the cool front moves southeast this afternoon, bringing back the drier and cooler air to the region through the weekend.
1152 PM CST Wed Nov 29 2017 An area of low pressure will move east across southern Canada this evening and Thursday. Its cold front will move across the Northland overnight, bringing a strong winds during the wee hours of the morning through the morning. Expect partly to mostly cloudy skies and highs in the lower to middle 30s.
323 AM CST Thu Nov 30 2017 Cold front located back across western AR at this time.
As we move into the daylight hours, we are going to see a very quick moving cold front slide through the area. Right now this cold front is moving through Wisconsin and stretches down to Oklahoma. After sunset the front will continue to move very quickly across the area and the rain will possibly end afternoon Midnight, but definitely done by 3 am as the front will be stretched east of the area from a low pressure system in western portions of South Carolina, near Greenville, to the panhandle of Florida. High pressure will build in rapidly behind the front with clearing from north to south.
Upper air analysis this morning showed nearly zonal flow over Texas with a strongly tilted trough along the west coast. A surface cold front has moved to the Gulf Coast and winds behind the front are from the north to northwest across our CWA. Cooler, drier air is settling over the region with temperatures five to ten degrees cooler and dew points 15 to 30 degrees lower than 24 hours ago. A low amplitude upper level ridge will build over Texas during this period. A second weak cold front will move through the region Thursday.
146 AM EST Thu Nov 30 2017 Cold front Thursday/early Thursday night. High pressure for the weekend. Cold front pushes into the Ohio Valley in association with a stronger 500hPa wave pushing through the Great Lakes. Front will sweep through fairly quickly, although the low level moisture will not, and should see lingering POPs in the higher elevations to the east through the end of the near term. Some light, non accumulating wet snow will be possible in the highest ridges as the moisture exits. By the start of the period Thursday evening, a cold front and accompanying rain showers will be centered over the Ohio River Valley. High pressure quickly shifts up the Ohio Valley into this region by Friday afternoon, though lingering low-level moisture could still blanket the northern lowlands and mountains in a thin stable cloud layer.
Only change was to add patchy freezing fog for some Southwest MT valleys, particularly the Big Hole Valley and West Yellowstone area.
The system to the north will help bring a low pressure system with its associated cold front across the northern and central parts of the Plains tonight. Winds will shift to the northwest, with low remaining fairly mild in the upper 20s and lower 30s (normal lows are in the lower 20s). That high pressure at the surface builds southeast of the area Thursday night, with winds becoming southerly. South winds continue on Friday ahead of the next weak cold front. Because of those southerly winds and deeper mixing, Friday should be a bit warmer than Thursday.
425 AM EST Thu Nov 30 2017 High pressure will drift east of the region today, while a frontal system approaches from the Ohio Valley. A cold front will cross the region tonight, bringing scattered light showers. High pressure will then rebuild and bring a return of dry weather for Friday and on through the weekend. H5 ridge axis propogating east of the Commonwealth while a shearing upper trof undercuts that ridge, producing an area of mid level clouds moving across central PA this morning, as per latest GOES-16 IR imagery.
1117 PM EST Wed Nov 29 2017 Light SE wind will veer to southerly by morning and SW by mid- morning as a weak trough approaches from the west. Center of coherent midlevel anticyclone will pass over the Detroit Metro area between 21-00Z this evening. Low impact light rain event set to occur over southeastern Michigan Thursday morning as the next trough in what has become a steady wave train tracks directly through the Great Lakes. Very quiet weather for Friday with surface ridging extending northward through southeastern Michigan and the central Great Lakes. High pressure centered over the Ohio Valley and Northeast through the weekend will keep dry conditions in place with highs in the mid to upper 40s and low in the 30s.
241 AM EST Thu Nov 30 2017 A weak cold front will approach today and move into the area tonight.
247 AM EST Thu Nov 30 2017 High pressure will bring another day of fair weather and above normal temperatures to the Appalachians and central mid Atlantic region today. A cold front will then move across the area tonight, with the best chance of showers west of the Blue Ridge. Another large area of high pressure will build in behind the front and bring generally fair weather with temperatures at or above normal through the weekend. A dry wedge of high pressure will bring pleasant weather to the region again today before clouds increase during the afternoon as a cold front approaches from the west. The front will move across the region tonight with the best chance of showers west of the Blue Ridge. Lows tonight will be in the low to mid 40s east, mid 30s to around 40 west.
1153 PM CST Wed Nov 29 2017 Updated for 06Z aviation discussion 06Z TAF discussion: A cold front will slowly move through the ArkLaMiss from west to east tonight through the early afternoon hours on Thursday.
Weak upper level ridging will prevail over South Texas through Friday, resulting in above normal temperatures and little to no chances for rain.