Aikyam-Lab/Synoptic-Bench huggingface dataset:
08/DML (Tonight through Thursday night) Mid-afternoon sfc analysis shows high pressure remaining in control and maintaining a mainly light serly low-level flow across the area. Meanwhile, mid/upper-level ridging is noted centered over the Ohio Valley and ridging swwd. 0 inches) is progged to shift inland off the Gulf, while capping further weakens as the ridging aloft shifts farther newd. Slightly warmer than normal temperatures are progged again for tomorrow before a cool down under cloudy skies/precip keep temps generally in the 80s for Thursday.
- A round of showers and thunderstorms is likely on Thursday with the highest chances from the late evening through Thursday night.
Temperatures have been on the cooler side this afternoon, but dewpoints across the far southern FA are in the low 60s. 500mb ridging will move in Wednesday morning, with the next much stronger 500mb system following for Wednesday night into Thursday. Storms should fire along the frontal boundary to the west late in the afternoon or early evening, then the low level jet cranks up during the mid to late evening (50 to 60 knots) into this same area, eventually focusing more into this FA and southern Manitoba. OTherwise, Trends are going to be towards clearing skies and winds becoming calm as high pressure continues to build into the region tonight. Southeast winds increase as low pressure deepens Wednesday and by the afternoon higher gusts around 25kt are expected (chance for even higher gusts to 30kt in ND).
This morning, the remnants of weak cold front are draped across central Illinois along with outflow boundaries from overnight convection. A hot and humid air mass remains in place with dew points within the baggy trough pooling in the mid 70s. Weak deep layer shear is in place owing the the proximity of the upper ridge centered just to our south. On Thursday, the trough will start to lift back north as a warm front and will once again serve as the focus for scattered showers and thunderstorms.
1204 AM CDT Wed Aug 28 2024 (This evening through Thursday) The much talked about upper high conts to slowly shift to the east of the region. By Thu, the remnants of the aforementioned upper system acrs TX wl drift towards the northeast, around the western periphery of the ridge.
1226 AM CDT Wed Aug 28 2024 - A cold front will arrive Thursday evening, resulting in chances for thunderstorms from Thursday afternoon through Thursday night.
130 AM EDT Wed Aug 28 2024 A cold front will slowly press southwards throughout our region overnight bringing the chance for showers and thunderstorms. This frontal boundary will stall to the south of the area Wednesday and Thursday, resulting in cooler and mainly rain-free weather.
H500 ridge will remain just east of the area with a weak disturbance moving onshore along the TX Gulf Coast through Thursday.
High pressure will start to build over western Washington, leading to a warming and drying trend into the weekend.
High pressure across North Dakota this morning is helping to bring patchy dense fog to eastern North Dakota into northwestern Minnesota. Next focus is a strong short wave trough moving out of Montana into North Dakota during the day on Wednesday. After Thursday, conditions turn quiet and cooler as upper level ridging builds into the region. A strong 500mb short wave trough moves into western and central North Dakota later this afternoon. Ahead of the short wave trough we have strong moisture returns from the south, sfc to 3km shear of 30kts, and 2000-3000 J/kg of CAPE. Temperatures in the 850-700mb level will be warmer than the surface, providing a cape on the atmosphere until the surface boundary moves through. Post Thursday, we become quiet and dry as upper level ridging shifts into the region.
(Today) The upper level ridge remains strong across the Southeast today allowing for another very hot day.
244 AM MDT Wed Aug 28 2024 KEY MESSAGES: - Cooler air will prevail through the next couple days before a warm up into the weekend. WEATHER PATTERN OVERVIEW: A large low pressure system will move across the area today and tonight. Dry air is expected to warp into the low as the first band of precip moves by and dry it out rapidly leading to almost no rain.
Otherwise, hot and humid conditions will ensue across the CWA with highs approaching the lower 90's. (Tonight through Thursday night) Mid-afternoon sfc analysis shows high pressure remaining in control and maintaining a mainly light serly low-level flow across the area. Meanwhile, mid/upper-level ridging is noted centered over the Ohio Valley and ridging swwd. 0 inches) is progged to shift inland off the Gulf, while capping further weakens as the ridging aloft shifts farther newd. Slightly warmer than normal temperatures are progged again for tomorrow before a cool down under cloudy skies/precip keep temps generally in the 80s for Thursday.
(Today and tonight) An inverted upper trough over South Texas drift westward toward the Trans Pecos while weakening. Meanwhile weak mid to upper level flow will remain over the forecast area between a sharper trough moving eastward over the northern Rockies and a ridge over the lower Mississippi Valley and points eastward. The inverted trough should spark scattered showers and thunderstorms across the eastern Permian Basin and the Big Country with some of this activity possibly drifting as far northward as the southeastern part of the forecast area. Convective initiation on the high terrain of central New Mexico where best forcing and monsoonal moisture exists should be too far west given the weak mid level flow for that activity to enter the forecast area this evening.
417 AM EDT Wed Aug 28 2024 A cold front will slowly press southwards through our region this morning bringing the chance for a few showers and thunderstorms. This frontal boundary will stall to the south of the area Thursday, resulting in cooler and mainly rain-free weather.
341 AM EDT Wed Aug 28 2024 A cold front will bring showers and potential for a rare thunderstorm early this morning.
A sprawling Atlantic Ridge will continue to extend its reach well into the eastern half of the U. An Atlantic ridge stretching into the southeastern United States and Florida will generally remain in place through the upcoming holiday weekend with only subtle shifts in placement. A weak trough is expected to move northwestward towards the Keys over the weekend resulting in a slight uptick in southeasterly breezes and a period of unsettled weather.
(Today and tonight) An already weak upper low was over western Sutton County at 1 AM. This low will further weaken over our area today. Overnight lows will be in the in the upper 60s to lower 70s in our southern and central counties, and in the lower 70s across the Big Country.
(This evening through Wednesday Night) Persistent onshore flow will continue to facilitate WAA/moisture advection from the Gulf, bringing warmer temperatures through mid week.
The latest probabilistic guidance keeps the focus of the lowest vsbys in that same area. Otherwise, another warm day is on tap for the FA as a weak sfc trof moves into north AR before dissipating. Meanwhile, a new cold front rmns progged to move into northwest AR arnd midday on Wed, then slide to the southeast of the state later Wed night.
- Scattered snow showers across the higher elevations and Southwest MT continue today. An upper air disturbance today will keep snow along the higher elevations through early Wednesday morning.
254 PM EST Tue Feb 25 2025 High pressure will briefly build over the region through Wednesday.
230 PM EST Tue Feb 25 2025 Weak high pressure will build over NC from the Gulf and Southeast states tonight and Wednesday before pushing offshore late Wednesday.
- There is a chance of light rain (up to 40%) on Wednesday behind a weak cold front. A cold front will weaken as it continues to push through the forecast area this morning. What this cold front will offer the region is a quick shot of cold air advection today. Despite the passing cooler airmass, temperatures today are expected to be quite similar to those of yesterday. By late this afternoon/this evening, warm air advection will return as a low- level ridge passes to the east.
Temperatures are projected to reach the low mid 70s in most areas with the exception being the beaches where the cool coastal waters and NNE winds will keep those areas 2-5 degrees cooler.
At the surface, a low pressure system is dragging a pair of diffuse cold fronts/boundaries through Missouri.
Temperatures are still on track to peak in the lower 70s to mid 80s this afternoon. Fog formation elsewhere does not look favorable as we expect a cold front to approach from the north.
- Weak cold front tomorrow with slightly cooler temperatures. (Tomorrow through Tuesday) Weak cold front will move through the area tomorrow with slightly cooler air moving into the area.
1004 AM EST Tue Feb 25 2025 Weak high pressure will continue to foster a warmup over the next few days.
Northwesterly flow in the wake of the frontal passage is briefly advecting a continental airmass across the Keys, with dew points in the lower 60s and temperatures generally in the mid 70s at most island communities. Weak high pressure building over the Gulf of Mexico will quickly progress eastward into the western Atlantic over the next forty- eight hours.
Areas of fog will be possible overnight, otherwise high pressure will maintain quiet weather across the region. Another round of fog is progged for Wednesday night ahead of a weak cold front.
Highs today will range from the mid and upper 70s east to the low and upper 80s west with southerly flow. Another day with highs in the mid 70s to mid 80s is expected Wednesday ahead of a cold front expected Wednesday night.
Another slightly more potent mid level trough and associated low pressure will approach from the upper MS valley toward daybreak, but only small chances of showers in west central Ohio near daybreak possible. Very light winds with just increasing mid/high clouds as a result, with overnight lows in the low to mid 30s.
236 PM CST Tue Feb 25 2025 - Warmer than normal temperatures stick around through the end of the week.
Snow, freezing pcpn could mix in (30-50%) north of HWY 64 in NC WI. OVERVIEW: quick moving upper level flow promises periodic ridging/troughing through the new week. Fgen evident in the 600:700 mb layer north of the low, in its deformation region, along with weak forcing along the north-south running cold front. However, sfc also looking to hold above freezing for the bulk of the area - mitigating threat for freezing pcpn. That said, can't completely rule out snow/freezing pcpn potentially in the north, mostly north of HWY 64 in WI. Current model blend lays down 30-50% shot for snow/freezing pcpn and will hold with that for now.
Heights increase aloft through the short term period as high pressure builds into our area from the south. Look for highs in the low 70s to near 90 degrees today and the mid 70s to mid 80s Wednesday.
Satellite imagery shows mountain-induced cloud cover still across the higher elevation zones, with clearing skies over the Snake Plain. Winds remain gusty, but off the high gusts seen this morning with passage of the front. Ridge of high pressure begins to amplify to the west into Wednesday night.
The cold front that is moving through the state today has brought some rain/snow showers with it.
131 PM EST Tue Feb 25 2025 High pressure will remain offshore today with mild conditions continuing. A weak cold front will pass through this afternoon, bringing a chance of showers.
- Light showers possible (10-20%) this evening as a cold front moves through the area.
High pressure will slide into the Gulf through the day on Wednesday and surface flow should respond by veering from the northwest back to the east.
236 PM MST Tue Feb 25 2025 - Cold front moves into the area tonight, leading to cooler temperatures for the plains and light mountain snow.
Wind gusts from 45 to 50 mph over the plains with 50 to 60 mph across the higher terrain. - Cooler Wednesday, with near normals temperatures and scattered high mountain snow showers.
Light winds out of the south will remain through the evening hours and temperatures will be above average for late February before the cold front comes in tonight.
439 PM CST Tue Feb 25 2025 - Early spring weather continues this afternoon, followed by a weak cold front and possible light rain showers overnight. - Above normal temperatures are on tap for the remainder of the week with highs generally in the low 60s.
545 PM CST Tue Feb 25 2025 - Warmer than normal temperatures stick around through the end of the week.
Winds will be light/ variable to near calm under the high pressure ridge. 08 Previous short-term discussion: (This afternoon through Wednesday) A dry and seasonably warm afternoon is underway as high pressure, centered over the northwestern Gulf, builds eastward across the Southeast. The result is beautiful weather conditions across Central Alabama with a sunny skies, low humidity, and highs in the lower 70s. Expect lows in the lower to mid 40s for most areas with some upper 30s possible in the north. The low-level ridge axis becomes aligned to the east of the area tomorrow with winds shifting to the southwest.
There has been some chatter today about a wintry mix or even freezing drizzle in far northern areas, including northwest Ohio.
pdf Low pressure will track away to the east Tonight, as high pressure builds to the west.
531 PM CST Tue Feb 25 2025 (This evening through Wednesday Night) Persistent onshore flow will continue to facilitate WAA/moisture advection from the Gulf, bringing warmer temperatures through mid week.
Any residual showers will also diminish over the lower elevations. Ridge flattens out as a clipper disturbance passes to the northeast of the area.
640 PM EST Tue Feb 25 2025 Weak high pressure will continue to foster a warmup over the next few days.
Today is a transition day from the strong storm experienced yesterday, to the building ridge expected overnight tonight. High pressure builds over the region tonight and lingers over the area in some shape or form into the weekend.
Unseasonably warm temperatures are expected mid-week as a high pressure ridge builds into the region. Winds are light out of the NNW today as a high pressure ridge builds into the region. Broad southerly flow and WAA beneath the building ridge will introduce a period of unseasonably warm temperatures to the area beginning Wednesday.
613 PM EST Tue Feb 25 2025 Weak high pressure will build over NC from the Gulf and Southeast states tonight and Wednesday before pushing offshore late Wednesday.
443 PM MST Tue Feb 25 2025 - Cold front moves into the area tonight, leading to cooler temperatures for the plains and light mountain snow.
513 PM CST Tue Feb 25 2025 Updated at 510 PM CST Tue Feb 25 2025 -Above normal temperatures will continue through Wednesday with highs in the low to mid 70s areawide.
750 PM EST Tue Feb 25 2025 Weak high pressure will build over NC from the Gulf and Southeast states tonight and Wednesday before pushing offshore late Wednesday.
This is due to persistent surface ridging over the area that will shift eastward over Florida/Georgia, pointing surface flow into an on-shore orientation.
644 PM EST Tue Feb 25 2025 Dry high pressure with warm temperatures through midweek.
642 PM CST Tue Feb 25 2025 (This evening through Wednesday night) After a fickle fog forecast this morning, skies have cleared and highs have reached the low 70s.
- Dry cold front passage early Wednesday morning will bring strong north winds and noticeably cooler temperatures Wednesday.
------------------------------------------------------------------- Lingering light rain showers will exit the area this afternoon as the trough shifts east. Quasizonal flow and brief surface ridging will then promote dry weather through Wednesday morning. Temperature will remain above-average, with overnight lows falling to near freezing.
The main concern overnight will be the possibility of some patchy fog, with the highest fog chances over the Nature Coast and across the interior.
Discussion: For tonight, surface ridging and dry airmass will producing clear sky and calm winds. A deamplified upper flow pattern with surface ridging through early Wednesday morning then moving east of the Appalachians.
(This evening through Wednesday night) After a fickle fog forecast this morning, skies have cleared and highs have reached the low 70s.
High pressure will move across the area overnight resulting in light winds. Still expecting lows in the lower to mid 30s.
711 PM CST Tue Feb 25 2025 (This afternoon through Wednesday) A dry and seasonably warm afternoon is underway as high pressure, centered over the northwestern Gulf, builds eastward across the Southeast. The result is beautiful weather conditions across Central Alabama with a sunny skies, low humidity, and highs in the lower 70s. Expect lows in the lower to mid 40s for most areas with some upper 30s possible in the north. The low-level ridge axis becomes aligned to the east of the area tomorrow with winds shifting to the southwest.
703 PM EST Tue Feb 25 2025 (Through Wednesday) An upper level low is located on the east coast on the Florida peninsula pushing east off into Atlantic. With the region on the backside of the upper level low dry conditions begin to move in through the near term. Although airmass from Pacific is cooler, currently in late february, 2 months after the winter solstice,the solar angle has become high enough to allow for temperatures to increase to the upper 70s midday with clear skies and calm winds.
* A cooler and more unsettled weather pattern returns this weekend through the first week of March. Dry conditions will continue this week as high pressure sets up to our north, helping shuttle in dry, continental air.
Ahead of the system on Wednesday, warm southerly winds will bring highs into the low 70s under clear skies. Cooler air will filter in for Thursday with highs topping out in the low 60s, dropping into the mid/upper 30s Thursday night.
931 PM CST Tue Feb 25 2025 - Early spring weather continues this afternoon, followed by a weak cold front and possible light rain showers overnight. - Above normal temperatures are on tap for the remainder of the week with highs generally in the low 60s.
(Tonight through Thursday Night) Very warm and very dry conditions are expected to continue this short-term, as surface ridging really builds in to our south. Highs today could push 80 degrees in some locations ahead of this cold front, before finally beginning to drop into tomorrow. This upcoming cold front also continues to trend drier and drier, as the upper-level pattern won't allow for enough saturation time before it moves through. In turn, there's a chance that this cold front moves through tomorrow, and many locations not see a single drop of rain.
Have elected to lean on the slightly warmer side of guidance for this afternoon's temperatures, which do get a few locations near that 80 degree mark later today. A sea breeze is expected to develop this afternoon and push inland, keeping those along the coast and just inland a few degrees cooler, or closer to the middle 70s.
High pressure will move across the area overnight resulting in light winds. Still expecting lows in the lower to mid 30s. Northwest flow will then persist aloft through the weekend with temperatures trending seasonably cooler.
Light northerly winds early shift to northeast during the afternoon as high pressure centered over the central Gulf ridges across the state into the W Atlantic, with immediate coastal locations shifting to onshore winds as the sea breeze develops.
1114 PM CST Tue Feb 25 2025 (This evening through Wednesday Night) Persistent onshore flow will continue to facilitate WAA/moisture advection from the Gulf, bringing warmer temperatures through mid week. A weak cold front is also progged to push across SE Texas Thursday morning, though it may not reach most areas till after sunrise.
1023 PM MST Tue Feb 25 2025 - Cold front moves into the area tonight, leading to cooler temperatures for the plains and light mountain snow.
Leaned toward warmer end of NBM guidance given dry airmass and full sun today. Increasing high clouds tonight as temperatures fall into the mid 40s across SE GA to the lower 50s toward the coast and NE FL toward the St.
The low pressure system responsible for yesterdays rain continues to lift rapidly out off the Atlantic Coast. Meanwhile, weak high pressure over the Gulf is moving in behind. Weak high pressure is sliding eastward across the Gulf as a low lifts out off the Atlantic Coast.
Surface cold front continues to move south across Kansas and has just passed through Ulysses and Johnson City based on surface obs. Light winds out of the south will remain through the evening hours and temperatures will be above average for late February before the cold front comes in tonight.
1157 PM CST Tue Feb 25 2025 (This evening through Thursday) Northwest flow will be over Arkansas to begin the short term period with an upper low near Florida. An upper trough will enter the northern Plains tonight and will move into the central Plains Wednesday afternoon as an upper ridge builds over the west coast. By Thursday the upper trough will be in the eastern U. and the upper ridge will build into the Rockies. A cold front will move through the Plains tonight and will enter northwest Arkansas Wednesday afternoon. Slightly cooler temperatures are expected on Thursday behind the front with highs in the 50s and 60s.
1028 PM MST Tue Feb 25 2025 - Cooler Wednesday, with near normals temperatures and scattered high mountain snow showers.
1236 AM EST Wed Feb 26 2025 Weak high pressure will continue to foster a warmup over the next few days.
That disturbance and its associated cold front will finally be approaching northwest Middle TN shortly after sunset with the front tracking east across the area through the overnight hours. In the wake of the front, temperatures on Thursday will be cooler with highs in the 50s to low 60s - but that's still above normal for late February.
1015 PM CST Tue Feb 25 2025 - Above normal temperatures on Wednesday, then cooler on Thursday.
136 AM MST Wed Feb 26 2025 - High temperatures will be considerably cooler today than those seen recently while gusty winds of 20 to 30 mph are possible for the southern half of the forecast area.
(Today through Thursday) Warm and sunny conditions continue today as high pressure builds over the Gulf. Meanwhile, at the surface, a large cold front will drape across the eastern CONUS from New England into the Southeast.
Expect northerly winds and cooler temperatures for Wednesday and Thursday as a cold front pushes through from the north.
- Weak cold front tomorrow with slightly cooler temperatures. Just ahead of the cold front was a lead wind shift moving across western Kansas. The leading wind shift looks to reach northeast Oklahoma in the 9-12z time frame with the cold front shortly behind. Also, behind the cold front moving through Wednesday, have increased winds slightly based on ongoing obs and latest short term guidance.
337 AM EST Wed Feb 26 2025 Weak high pressure will continue to foster a warmup over the next few days.
FORECAST CONFIDENCE AND/OR ALTERNATE SCENARIOS: Drier air near the low levels could keep the ceiling higher than expected leading to MVFR to VFR ceilings.
pdf Low pressure will track away to the east Tonight, as high pressure builds to the west. A relatively dry frontal passage is expected for Thursday and into the end of the week as high pressure over the region moves off to the east, ahead of a cold air mass pressing in from out of the north. High temperatures for this period will reach up into the mid to upper 70s during this period with overnight low temperatures dropping down into the mid to upper 40s and lower 50s, with warmer temperatures occurring over north central Florida and along the First Coast.