Aikyam-Lab/Synoptic-Bench huggingface dataset:
Upper level ridge centered near the four corner will drift west the next 24 hours. Temperatures will be slightly warmer with highs climbing above 90 degrees over much of northeast Colorado. An upper trough and surface front passing southeast across the area Tuesday night will help push scattered thunderstorms east into Kansas through midnight, with gusty outflow winds, small hail and brief moderate to heavy rainfall the main impacts. Cooler air behind the trough and clearing skies will allow for minimum temperatures to cool a degree or two cooler than tonight's readings.
657 PM CDT MON JUL 25 2016 Aloft: Zonal flow was along the US-Can border with a weak trof over the Pac NW and subtropical highs over the Desert SW and Carolina's. The low-lvl jet will develop W of the fcst area tonight. and will be collocated with the moist tongue over the high plains. The approach of a strong trof and an 80-90 kts upr-lvl jet streak into Wrn Canada will nudge the Wrn USA ridge onto the Plains Sun with SW flow developing Mon with its passage. and this should force a warm front to develop across the Nrn/Cntrl Plains.
1045 PM EDT Mon Jul 25 2016 Quiet but warmer weather is expected through the end of the week.
A pacific low pressure trough with an area of enhanced mid level winds will pass over the area through the evening. A cold front will come south later tonight and end up along the continental divide by early morning. Tuesday Through Monday a series of cold fronts will move south each night through the week enhancing the low level moisture up along the continental divide. A pacific low pressure trough with an area of enhanced mid level winds will pass over the area through the evening. A cold front will come south later tonight and end up along the continental divide by early morning.
824 PM EDT MON JUL 25 2016 A cold front moves through the region tonight.
This has been the focus for isolated showers/thunderstorms given the high cape and little shear per SPC mesoanalysis. Hence following the higher resolution models, will continue with slight chance/chance of showers/thunderstorms overnight. In the north central where there is an area of impressive shear is where lapse rates are the lowest. A persistent eastern Canadian trough and Western N. A ridge will maintain a nearly stationary boundary from the northern Rockies into the northern and central Plains. By the weekend the western ridge begins to build over the central U.
804 PM EDT MON JUL 25 2016 A cold front moves through most of the region by late Tuesday, before dissipating Tuesday night. Cold front to move through the region this afternoon and this evening.
Temperatures will be on par with today's highs of around 100F in the lowest valleys. Smoke layers in the Lowman area, and patchy smoke in the Snake River Valley 06z-18z, including the KBOI and KMUO areas.
937 PM EDT MON JUL 25 2016 Atlantic high pressure will prevail through much of the week while a weak trough persists inland. It'll be another warm and humid night is on tap under deep layered ridging. A persistent weather pattern is in place as strong Atlantic mid/upper-level ridging extends across the Southeast and a weak trough remains far inland.
759 PM EDT MON JUL 25 2016 A cold front will move across the area this evening and end the showers.
1023 PM EDT MON JUL 25 2016 A cold front moves through the region overnight.
1051 PM EDT MON JUL 25 2016 A cold front moves through most of the region by late Tuesday, before dissipating Tuesday night. Cold front to move through the region this afternoon and this evening.
High pressure continues to dominate the area. Proton Synoptic setup: a large high pressure heat dome continue to be stationed over the western half of the conus with its center positioned over the Nevada/Utah border. Tonight and Tuesday: Ridge across the area earlier today has toppled and allowed weak southwest flow to enter the area.
1259 AM EDT Tue Jul 26 2016 Quiet but warmer weather is expected through the end of the week.
1102 PM EDT MON JUL 25 2016 High pressure will expand across the Carolinas, bringing uncomfortable levels of heat and humidity this week. Overnight low temperatures will dip into the low to mid 70's across the inland areas, with upper 70's along the coast. Upper level ridging not only stays centered just off the coast through the period but it strengthens. Tuesday the piedmont trough appears to have a better chance than the sea breeze.
848 PM EDT MON JUL 25 2016 A cold front will cross the region tonight, providing another round of showers and possible thunderstorms.
1231 AM EDT TUE JUL 26 2016 Atlantic high pressure will prevail through much of the week while a weak trough persists inland. Another warm night is underway under deep layered ridging. A persistent weather pattern is in place as strong Atlantic mid/upper-level ridging extends across the Southeast and a weak trough remains far inland.
936 PM EDT MON JUL 25 2016 A weakening cold front will move south of the Ohio Valley by Tuesday night where it will become stationary. High pressure will slide across the lower Great Lakes through mid week.
740 PM EDT MON JUL 25 2016 High pressure will expand across the Carolinas, bringing uncomfortable levels of heat and humidity this week. Overnight low temperatures will dip into the low to mid 70's across the inland areas, with upper 70's along the coast. Upper level ridging not only stays centered just off the coast through the period but it strengthens. Tuesday the piedmont trough appears to have a better chance than the sea breeze.
752 PM EDT MON JUL 25 2016 A cold front will cross the region tonight, providing another round of showers and possible thunderstorms.
/ISSUED 309 PM CDT MON JUL 25 2016/ A large swath of deep Gulf moisture has invaded North and Central Texas today in response to a slow-moving inverted trough which has finally worked its way in from the east. This is all occurring as an upper level ridge which brought the triple digit heat over the weekend retrogrades westward into the 4-corners region. One concern with these storms will be locally heavy rainfall and possible flooding due to the high moisture environment in place and slow southwest cell motion.
704 PM EDT MON JUL 25 2016 An inland thermal trough and Bermuda high offshore pattern will prevail through the week ahead. Latest sfc analysis shows 1020mb high pressure anchored off the se coast and weak frontal boundary extending from Canada into the Great Lakes and back into the mid-west. Models indicate subtle shift in ridge axis to south, which will allow some short wave energy in westerly flow aloft to north to affect northern sections in afternoon, along with some increase in mid and upper level moisture.
Deeper moisture is located just south of the area in association with a weak trough, and models indicate that this airmass will move northward overnight.
720 PM EDT MON JUL 25 2016 Dry and less humid tonight through mid-week as high pressure builds in. Lows tonight will drop into the low to mid 60s, with Tuesday's highs expected to reach the 80s.
There is a little better supply of moisture across the Southern Appalachian region due to a shift in the low to mid level flow to more of a southerly direction. Intense heating and the gradual approach of the Ohio Valley boundary warrants to the low chance pop for a shower or even a thunderstorm into the late night hours so will keep this concept going.
Increasing winds Thursday night in advance of an approaching cold front should prevent fog formation although rain chances will be on the increase. /issued 301 PM CST Wed Jan 4 2017/ High pressure has been the dominant weather feature of note today, but things change as we head towards the end of the week.
Highs will only reach back up into the teens(F) across west central and southwest Kansas with the lower 20s(F) still a possibility in south central Kansas.
Despite a very dry atmospheric column overall, there will be some flurries at times this morning beneath a shallow stratus deck as a mid- level trough swings through.
Eastern side of CWA should see similar overnight lows as last night but maybe 5 deg warmer across the east as winds will be slightly higher.
High pressure will build into the area, reinforcing Arctic air through the weekend.
Despite the lowered snow totals, plan to leave the current Winter Weather Advisories in place. Otherwise, Arctic high pressure will continue to build into the area today.
A short wave trough sweeping across the Great Lakes Region today will bring snow to central Indiana with accumulations likely.
Seeing mainly flurries and a few pockets of light snow rotating back across cwa w/nw of Quad Cities attendant to lift from an approaching mid level trough and seeding of ice from above into lower clouds. Generally anticipate mostly cloudy skies today between mid/high clouds lingering in wake of departing southern cwa system and lower clouds rotating down and/or developing attendant to approaching mid level trough and DCVA. This afternoon while a few flakes may persist north the emphasis may shift to southern cwa for some flurries attendant to secondary energy packet rounding the trough. Tonight, subsidence in wake of departing mid level trough should lead to at least partial clearing.
The trough extension from the closed upper low between Hudson Bay and Lake Erie continues to sweep south through Northeast Montana tonight with 700mb temperatures of -24C. Broken low stratus associated with this west extending trough will affect the area all night. As the trough drops south, clouds should thin out.
With high pressure and mostly cloudy skies, temperatures will remain below zero through the day. Tonight's temperatures and wind chills should be on average 5 to 10 degrees warmer than Wednesday's.
An area of low pressure will develop just east of the coastal waters this morning, and then move north to off the coast of the Carolinas tonight. Light northerly winds early will become westerly this afternoon in response to the developing low pressure. A low level trough will develop across the western and northern Gulf this morning and afternoon, and then extend across along the FL/GA border tonight.
Another cold front will move into the northern areas mid afternoon Thu and through southern areas Thu evening. A MVFR stratus deck may develop again behind this cold front. The aforementioned cold front will arrive at AUS around 22Z Thu, SAT around 00Z Fri, and DRT 03Z Fri. ADD DRIZZLE SE THURS/ Surface winds over the Rio Grande Plains can be seen turning southerly, and the BL winds on the recent RUC runs and VAD wind profiles confirm that the low cloud deck will mix out a bit more this evening, then surge north again. At the surface, winds were from the north to northeast behind a cold front. The frontal boundary will come back through as a warm front tonight. Another cold front will drop through our CWA Thursday.
Through tonight Canadian high pressure will continue to build into the CWA bringing colder.
Latest surface analysis depicts high pressure extending from western Canada southeastward across much of CONUS, with the latest H5 analysis depicting a potent upper low over eastern Canada with another upper low just off the Oregon coast. An upper trough axis will rotate into the region today, with a reinforcing cold front attending at the surface. This will help keep cloud cover in place, with temperatures ranging from the lower 30s north to the low to mid 40s across north Mississippi.
maybe a tad "warmer" than expected early this morning. One new forecast issue is an area of clouds moving southeast out of Minnesota associated with a mid level trough swinging through.
Winds will mostly be light through the overnight period then a cold front will move into the area Thursday morning with northeast to east winds. The cooler airmass behind the front that pushed through yesterday has already begun to erode away. Cooler air is still holding on across the NE Permian Basin where temperatures are in the 40's. The front will make it to central portions of the area just after sunrise Thursday before hanging up across the higher terrain during the afternoon. Look for a wide range of temperatures Thursday afternoon with the Rio Grande seeing highs near 80 and Snyder possibly not making it much above freezing.
/28/ Tonight and Thursday: Latest surface analysis had a ridge of high pressure dropping southeast over our CWA from the central plains. This ridge will weaken and become more east-west oriented tonight. This will result in a light northeast flow helping to send temperatures slightly cooler than normal by morning. Temperatures will start out below freezing Thursday morning across the northern half of the area. Highs Thursday will be slightly cooler than normal in our northwest, in the upper 40s and near normal elsewhere. /22/ Thursday night through Wednesday: The next cold front will drop through the area Thursday night and bring a good shot of reinforcing arctic air.
Temperatures range from 15 below at Pine Ridge to 8 at Imperial. Lowest wind chills 15 below at Pine Ridge and 13 below at Valentine.
Light snow probabilities will increase along and north of the interstate this evening as moisture in the 850-500mb layer increases ahead of an approaching upper level trough.
1007 PM MST Wed Jan 4 2017 Upper air analysis shows upper low across the Great Lakes region with a trough extending westward toward ND/MT. Surface analysis shows arctic high pressure building into the northern plains. Skies will clear out Thursday as the center of the high crosses the region. Slightly warmer air will begin working back into the area Thursday night.
A strong cold front will move through the area Thursday morning, resulting in north winds of 10 to 15 knots, with higher gusts. A cold front will move through the area Thursday morning, with winds becoming north at 10 to 15 knots, with higher gusts. /issued 343 PM CST Wed Jan 4 2017/ (Tonight and Thursday) Mostly sunny and cool across West Central Texas this afternoon, with temperatures ranging from the lower 40s across the I-20 corridor at Sweetwater and Abilene to the low 50s across the I-10 corridor from Ozona to Sonora and Junction. Temperatures will struggle to climb above the freezing mark across the Big Country, with readings farther south climbing ahead of the front and then becoming colder by afternoon.
Secondary trough ushering in arctic reinforcement will bring with it quite a few lower clouds through the day, as well as threat for passing flurries. Those areas near the lower Missouri valley below Yankton and eastward across northwest Iowa will likely find wind chills 8 below to 18 below zero through the day. At the time, likely will have a small area of east central SD that fails to moderate above wind chill advisory, albeit just a touch cooler than criteria for much of the afternoon.
Areas of drizzle, possibly some light rain, may develop across portions of East Texas and Louisiana south of Interstate 20 by sunrise as a strong cold front approaches the region. With clear skies across these areas, temperatures trending slightly cooler than expected.
Surface analysis for the past several hours depicts a cold front exiting our region with drier air filtering in behind.
Next arctic cold front moving through this morning. A strong cold front is currently moving into our forecast area early this morning. Texas Tech Mesonet observations at 3 AM show that the front has moved into our northern counties, as winds have turned to the north and temperatures have dropped to below freezing. The 00Z model guidance has generally caught up with the faster movement of the front, so have trended the forecast toward this latest guidance, and a faster moving cold front. Highs north of I-20 will struggle to warm above freezing today, with highs in the Concho Valley and Heartland in the mid 40s, and possibly upper 50s along the I-10 corridor.
327 AM CST Thu Jan 5 2017 As is often the case with deep cold air masses, the cold front is many hours ahead of where models placed it last night. Strong northerly flow is noted at H5 across MT and the Dakotas with a near latitudinal trough across SRN ID/OR.
Ltl chg in the shrt term with an upr trof over the Great Lakes and a wsw flow of cold air in the fcst area. ltl chg in the xtndd pd as we slowly transition from a trof to more zonal flow. This will be flwd by cooler air once again. Pattern will become milder during this period as the broad upper trough over eastern Canada lifts north and storminess advances eastward from the Pacific.
The positive tilt upper trough will shift southeast of the CWA after 18Z.
However, an additional finger of midlevel frontogenesison the nose of a narrow PV anomaly will slide down the back side of the upper trough this morning and through our southwest CWA, bringing another possible half inch of snow on top of the 1-3 inches of over- night accumulation.
334 AM CST Mon Nov 14 2016 A wrapped up upper-level cyclone is moving east across the Mid- South early this morning with little fanfare. Temperatures this afternoon will be at or slightly warmer than what we saw yesterday, with highs in the mid 60s to near 70 degrees. This will help pull a bit more moisture into the Mid-South, increasing dewpoints into the low/mid 40s by sunset.
102 AM EST Mon Nov 14 2016 High pressure and a dry airmass will remain in place across the region through the first part of the week as temperatures remain slightly above normal. For Monday, increasing gradient ahead of trough to push through the region will yield increasing clouds and warm air advection in the southerly flow. Period begins with a weak H5 ridge over the area. Think that the low levels will be dry enough that any virga won't reach the ground. Lows will be close to normal ranging from the lower 30s east of Columbus to the upper 30s along the OH/IN border.
A weak trough will drift very slowly across the area today into tonight.
131 AM EST Mon Nov 14 2016 High pressure will keep fair skies and mild temperatures over NY and PA through this evening.
324 AM CST Mon Nov 14 2016 Early Monday morning, a weak cold front was slowly progressing across the area, extending roughly from SLN to MYZ at 3 AM. Even with the cold front passage, cold advection will be weak and high temperatures are forecast to be similar to Sunday, if not a degree or two cooler mainly in far northeast KS where there will be a bit more cold advection. Regardless, the trend for warmer-than-normal temperatures by several degrees will continue today. So, have gone with slightly cooler temperatures in valleys with some potential to fall a bit farther into the 30s under the right conditions.
The cold front should move south of the forecast area by mid morning with weak low-level cold advection continuing into afternoon. This will result in cooler afternoon highs compared to Sunday with values in the upper 50s to lower 60s.
A trough will pass through the region tonight possibly producing a few sprinkles over the area late tonight into Tues morning.
with a few northern locations dropping once again to at or below freezing. Winds have been light and variable this afternoon, with 18z surface analysis depicting an area of high pressure over the region. These easterly upper level winds result from two upper lows flanking the region, one centered over northeastern Georgia and a western low over northeast Oklahoma.
A weak cold front is slowly shifting east and southeast from the Midwest down to the southern Plains states. troughiness is culminating across the central to eastern CONUS. A couple of weaker upper level lows are moving through the flow, one currently near the Missouri/Arkansas border headed east, and the other moving more northeast into North Carolina. Moisture will gradually be on the increase through the short term, as the weak cold front approaches from the west. Highs will generally be in the lower 60s once again. While dew points will not be as dry as Sunday, still think that some of the eastern valleys will likely dip below 30 degrees once again, while ridges stay up at around 40 degrees.
320 AM EST Mon Nov 14 2016 Low pressure will lift northeast of the area today.
335 AM EST Mon Nov 14 2016 High pressure will remain to our south today then move away to the east tonight.
412 AM EST Mon Nov 14 2016 High pressure will keep fair skies and mild temperatures over NY and PA through this evening.
229 AM EST Mon Nov 14 2016 Coastal low pressure will provide clouds today and tonight, but mainly dry weather is expected ahead of a mid week front. A mid level trough currently over the middle Mississippi Valley will deepen and rotate across the central Appalachians by late today.
Cloud cover and northerly flow behind the front will limit highs to the low to mid 70s from Orlando area northward and upper 70s to around 80 degrees farther south. Lows expected to range from the low 50s over Volusia and northern Lake counties to low/mid 60s along the Treasure Coast. Highs will be in the Mid 70s over most of the area with lows in the Low to Mid 50s Tue night. The high will propagate NE to the mid Atlc by late week, veering our winds out of the Northeast. The next cold front is forecast cross the area around Sat night with little chance for rain at this time. High pressure over the deep south will produce N/NW winds thru early Thu, veering out of the NE (onshore) by Fri as high pressure builds to the eastern seaboard.
A decrease in amplitude to the North American upper level blocking ridge is ongoing this afternoon. The last of the ridge axis is forecasted to roll east of the central Great Lakes this evening.
The cold front is already through the forecast area. As another weak cold front moves into the area late tonight winds will gradually turn from the southwest to the northwest.
A few hours of a strato-cu deck will be possible Monday morning before a weak cold front moves through shifting winds to the west and northwest. /Issued 911 PM CST Sun Nov 13 2016/ Water vapor satellite imagery indicates a short wave trough translating eastward through the region into srn MO/nrn AR this evening. A cold front will move through our region on Monday as the second system passes northeast of us. Light south wind and higher dewpoints tonight as compared to last night should ensure most areas stay warmer tonight.
1154 PM EST Sun Nov 13 2016 High pressure will keep fair skies and mild temperatures over NY and PA through this evening.
Most locations in the low to mid 40s attm and believe with some pockets of clearing behind initial band of clouds we should be able to drop a few more degrees then CONSSHORT guidance as winds continue to subside. Lowered mainly the Devils Lake basin into the lower 30s. allowing lows to fall into the low to mid 30s.
To start the period, an upper level trough will be in place overhead.
331 AM CST Mon Nov 14 2016 A weak cold front. switching to NW Monday night as the cold front passes across the area. Expect highs today in the lower 60s up a few degrees from yesterday with southerly winds. followed by lows ranging from the upper 30s to the lower 40s Monday night.
312 AM CST Mon Nov 14 2016 Moisture-starved mid/upper level trof to move through the Ohio Valley region today. A secondary trof diving se into the back side of the main trof may be able to generate some very light precip over swrn portions of the forecast area, but for the most part, the main outcome from this system will be negligible in a QPF sense. Thereafter, fair weather high pressure will settle back in for the remainder of the short term. The passage of a weak surface trof/frontal system tonight will not have much of an effect on temperatures either, as the air mass behind the trof will be seasonally mild.
348 AM EST Mon Nov 14 2016 Low pressure will move along the North Carolina coast today and pass by to our east tonight.
913 PM PST Sun Nov 13 2016 Warmer through Monday under strengthening high pressure.
347 AM EST Mon Nov 14 2016 An upper level low will lift northeast across the Carolinas today, while an area of low pressure moves up the Carolina coast.