Aikyam-Lab/Synoptic-Bench huggingface dataset:
720 PM EDT Sun Oct 22 2023 An upper level trough has brought much cooler temperatures and some lake effect rain showers to Central NY that will continue into tonight. Some wet snow flakes could mix in over the highest elevations, with no accumulation. No accumulation is expected as surface temperatures remain above the freezing mark. with some sub-freezing readings expected across the central southern tier region. It will be milder, with highs in the low to mid-50s for most locations. A very strong ridge will be parked over the region through the period with 500mb heights around 582dm, almost 20dm higher than normal. The center of the high will be SE of the area, allowing SW flow to advect near record warmth into the area.
756 PM EDT Sun Oct 22 2023 Dry high pressure is expected to prevail across the region through this week. At the surface, High pressure centered over the OH Valley in the evening will wedge down the lee side of the southern Appalachians overnight. A deep layer ridge is expected to build over the southeast U.
Low temperatures tonight will generally range from the lower 60s west of the Lake to the lower 70s across the east coast metro areas. (Rest of today through Monday) Pleasant weather conditions continue through the short term as ridging slowly builds over the southeastern US. Overnight temperatures could drop to the lower 60s over the interior and Lake Okechobee areas, but will most probably remain near the low-to-mid 70s along the coastlines.
Upper trough/low will dig across the western CONUS, as southwest flow strengthens overhead. Lee troughing will try and bring in some low level moisture and instability across the plains late in the day. Key Messages: 1) Above normal temperatures continue through the middle part of the week, with cooler temperatures then anticipated into the weekend. 2) Highest chances for precip is expected across the higher terrain through the period.
Otherwise, high clouds will continue to stream across the region from the west and another warmer than normal morning is on tap. Low level moisture around the periphery of this high and along the remnants of the weak front will trend upward and may result in another bout of low clouds and fog across central LA and southwest MS late tonight into Monday morning. /DL/ By Monday night, broad ridging will continue across the southeast, with a high pressure forming near the mid-Atlantic coast.
733 PM EDT Sun Oct 22 2023 High pressure building across the area overnight will result in dry weather and chilly temperatures. This will allow temperatures to drop to lows in the lower/mid 30s for most spots by sunrise Monday. Have continued a freeze warning across the north and northeast counties where the probability of sub-freezing temperatures is greatest. Have a frost advisory across the remainder of the area - where sheltered and low-lying locations may dip to freezing but the probability of widespread freezing temperatures is lower.
The colder temps will allow crossover temps to be more easily reached so some patchy ground fog or freezing fog could form in spots overnight, possibly impacting the Monday morning commute. The low cloud deck from this morning has dissipated, replaced by scattered to broken diurnal cumulus across much of southwest Michigan.
Closed low centered over Northern Nevada this evening has placed favorable dynamics over the forecast area. Isolated thunderstorms are seen on the leading edge of the low center across Malhuer County moving into Southwest Idaho.
622 PM CDT Sun Oct 22 2023 (This evening through Monday) A strong upper low currently located over northern California will make its way southeastward into southern California during the overnight hours. The upper low will continue diving southeastward into Baja California during the day on Monday.
852 PM CDT Sun Oct 22 2023 00Z upper air analysis places a upper-level trough axis along the East Coast of the United States while an upper-level ridge is beginning to build into the Lower Mississippi Valley. As of 8 PM CDT, temperatures range from the lower 50s over northwest Tennessee, and 60s elsewhere. CJC Warmer temperatures will return on Monday and last through midweek with highs in the low to mid 80s.
640 PM CDT Sun Oct 22 2023 Warmer temperatures will return on Monday and last through midweek with highs in the low to mid 80s.
945 PM EDT Sun Oct 22 2023 High pressure building across the area overnight will result in dry weather and chilly temperatures. This will allow temperatures to drop to lows in the lower/mid 30s for most spots by sunrise Monday. Have continued with a Freeze Warning across the north and northeast counties where the probability of sub-freezing temperatures is greatest. Have a Frost Advisory across the remainder of the area, where sheltered and low- lying locations may dip to freezing but the probability of widespread freezing temperatures is lower.
Currently - Robust surface through lower level high pressure has become established over the eastern United States. A ridge across Florida will be reinforced by a stronger high expanding through the eastern United States.
Tonight lows are expected in the low to mid 60s, Monday highs in the mid to upper 80s areawide.
650 PM EDT Sun Oct 22 2023 High pressure will remain in place for the coming week, with dry conditions prevailing.
(Tonight) Even with a weak cold front moving through the area today winds were slightly weaker than yesterday keeping us out of Red Flag criteria.
542 PM MDT Sun Oct 22 2023 A low pressure system is currently tracking southward along the West Coast. The ridge that was over our region has broken down, but persistent southwest has finally brought in some moisture thanks to the low. Winds increase tomorrow as the low pressure continues southward.
946 PM EDT Sun Oct 22 2023 Dry high pressure is expected to prevail across the region through this week. warmer near the beaches. A deep layer ridge is expected to build over the southeast U.
901 PM CDT Sun Oct 22 2023 Calm, cool and and partly cloudy conditions tonight will be followed by a sharp warm-up tomorrow as temperatures surge into the lower 70s on the nose of a breezy southerly wind.
639 PM CDT Sun Oct 22 2023 Calm, cool and and partly cloudy conditions tonight will be followed by a sharp warm-up tomorrow as temperatures surge into the lower 70s on the nose of a breezy southerly wind.
558 PM CDT Sun Oct 22 2023 (Tonight) High pressure out of the OH Valley continues to build into much of the region in the wake of a departing frontal boundary to the south. This is translating into a weak influx of slightly cooler air, as sfc flow becomes entrenched out of the NNE. A broad upper trough axis also continues to exit the NE/mid Atlantic states to the east, as weak upper ridging builds over the western/central Gulf states.
The warmer conditions are lasting longer in the afternoon, followed by a sharp drop as the sun sets. The longwave ridge aloft will move to our east later in the day Monday as a more southwest flow pattern develops aloft. The forecast will call for gradually increasing clouds through the day from the west and southwest with high temperatures from the mid 70s in the higher elevations east to the mid 80s west, central and south.
(The rest of tonight) South winds and increase in low level moisture will keep overnight lows a bit warmer tonight. Some areas across far northeast OK where lighter wind speeds have been observed along with mostly clear skies may see a bit cooler temps and overnight lows in a few spots were adjusted down accordingly. (Monday through Sunday) Guidance indicates potential for some warm advection showers on Monday as we transition to a warmer more humid airmass over the region.
740 PM EDT Sun Oct 22 2023 High pressure builds into the area tonight through midweek, remaining in the vicinity through the end of the week with quiet weather continuing. This will continue to build into the area as high pressure builds in from the north. Lows in the lower to mid 40s with colder spots possibly dropping into the upper 30s. Winds will be lighter Mon due to the building high pressure.
759 PM EDT Sun Oct 22 2023 Aviation The low cloud deck from this morning has dissipated, replaced by scattered to broken diurnal cumulus across much of southwest Michigan.
613 PM CDT Sun Oct 22 2023 (This afternoon through Monday Night) Northeasterly winds have brought cooler temperatures today, but over the next couple of hours we'll probably see some places in our southwest flirting with the mid 70s. An upper ridge axis will move east on Monday, which will allow for another warm day with widespread temperatures in the mid to upper 70s.
710 PM EDT Sun Oct 22 2023 Dry, cool high pressure will continue building into the forecast area, remaining over the region through the middle of the week. The anomalously strong ridge over the Southeast will lead to a warming trend starting mid week and keeps the area dry through the end of the week. Dry air, a 20 to 25 kt low level jet, and the high clouds will prevent fog development. Cold advection will lead to lows tonight in the low 40s to the north and upper 40s in the south. Cool high pressure will reside over the forecast area on Monday in the wake of the cold front providing below normal temperatures. Aloft, an upper ridge will build over the OH/MS Valleys and begin to shift eastward as an upper trough shifts further off the New England coast.
and Tuesday A short wave trough moving across central Wisconsin will bring showers to the region today. The showers will end by early evening as the upper trough departs, but showers and elevated thunderstorms are likely after midnight ahead of a warm front moving north across southern Wisconsin. The warm front will move into northern Wisconsin Tuesday and stall out in the afternoon.
Otherwise, building high pressure will result in dry conditions and rapid warming trend for the upcoming week.
Wind speeds around 5-10 knots Monday, with higher winds and gusts in subsequent cycles with tightened gradient locally through much of the week in response to high pressure building north of the area.
306 AM EDT Mon Oct 23 2023 High pressure will drift into the region today, providing abundant sunshine and near to slightly below normal temperatures. Clear skies and light/VRB/calm winds have created favorable radiational cooling conditions, allowing for temps to dip into the lower to mid 30s, as expected. Highs today will generally top out in the lower 60s (central OH) to upper 60s (Tri-State) amidst a mostly clear sky. Midlevel ridging will expand northward into the OH Vly tonight into Tuesday, allowing for notably warmer temps to filter into the region by Tuesday into midweek. With ridging centered over the SE CONUS and troughing developing over the wrn CONUS, broad SW flow will become established from the lower MS Rvr Vly and south-central plains into the OH Vly for midweek and beyond.
327 AM CDT Mon Oct 23 2023 Breezy and warm conditions will be on tap across central Illinois today as afternoon high temperatures climb into the lower 70s.
1150 PM CDT Sun Oct 22 2023 (Tonight through Tuesday night) Wx map shows weak high pressure over the Northern Gulf of Mexico, keeping a weak pressure gradient over the area. A mid to upper level ridge over the Gulf of Mexico, and a longwave mid to upper level trough over the Western U. Overnight lows will range from the lower 60s over Central Louisiana to lower 70s over Southeast Texas.
A digging upper level trough off the California coast will create breezy winds over northern Arizona Monday afternoon. In the meantime, increasing boundary layer winds overnight should keep the low levels mixed. Low pressure off the western U.
Otherwise, high pressure dominates promoting quiet weather. With high pressure in control not expecting any precipitation as well. After a cold morning with below seasonable temperatures, the area will bounce back reaching low to mid 60's in the lowlands and mid 50's to low 60's in the mountains which place us back in seasonable mode. Overnight lows for Tuesday morning will not dip below freezing even in the mountains due to higher wind speed anticipated.
(Today through Tuesday) High pressure continues to build over the region early this week with the pressure gradient strengthening and resulting in increasing winds out of the ENE for the latter half of Monday and for Tuesday. Thus, the moist layer will be shallow and closer to the surface which with high pressure in place will limit the possibilities of showers for both Monday and Tuesday. Temperatures on both days are expected to reach the upper 80s for highs and the 60s for overnight lows, except along the east coast metro where lows should be in the low 70s.
Georgia remains situated underneath northwesterly upper flow ahead of a ridge advancing towards the eastern CONUS. As this high continues to move east, a wedge will develop along the lee side of the Appalachians and into north Georgia, with low level winds shifting from the northwest to east as a result. High temperatures this afternoon will rise into the 70s across the majority of the area and into the low 80s in portions of south- central Georgia. On Tuesday, the ridge axis will move closer to the forecast area, with upper level winds becoming more westerly. Once again ran on the low side of guidance for dewpoints today considering the influence of the high and the associated subsidence.
(Today through Tuesday) Upper level ridge is going to be building over the eastern half of the US for the start of the week. (Tuesday Night through next Monday) Long wave troughing will be developing over the West mid-week but the upper level ridge will keep things quiet and warm for us. The long wave trough will slowly start to push east towards the end of the week into the weekend.
123 AM MDT Mon Oct 23 2023 Key messages: - Cold front today will bring cooler air from northwest to southeast - Much colder temps and light snow expected late Wed/Thu - Cold this weekend, with another chance for light snow Upper flow is split, nearly zonal across the northern plains as a low slides south over CA. At the surface, an inverted trough stretches through the Rockies and into the Dakotas, with Canadian high pressure slowly pushing south behind a cold front. Cold front is expected to cross 2/3 of the CWA by 18Z and nearly all of the CWA by 00Z, so lowered highs a smidgen, leaving south central SD the warmest. Highs will range from the low 50s across northeastern WY, northwestern SD, and the Black Hills to the mid 70s across south central SD.
Surface analysis depicts a large high pressure area centered over the Ohio Valley, with a weak frontal boundary over north Florida. Aloft, a broad trough is over the western Atlantic, with an upstream ridge building from the Gulf of Mexico northward to the western Great Lakes. NE/E flow will gradually increase, becoming breezy on Tuesday as high pressure builds along the Eastern Seaboard and southward into Florida. We will need to keep an eye on a developing mid/upper level low over the SW Atlantic, with the 00Z ECMWF much quicker than the GFS to retrograde this feature WSW toward the Keys as we head through the upcoming weekend.
Highs generally reach into the lower 70s (east) to upper 70s (west). Expect afternoon highs to reach into the lower 80s for most of the area as 850 mb temperatures reach around 16 C. Changes are on the horizon by late Monday night into Tuesday morning as a trough digs into the desert southwest. This trough will be the focus for an active pattern across the region through much of the forecast period beyond Monday.
1253 AM EDT Mon Oct 23 2023 High pressure builds into the area tonight through midweek, remaining in the vicinity through the end of the week with quiet weather continuing. This will continue to build into the area as high pressure builds in from the north. Lows in the lower to mid 40s with colder spots possibly dropping into the upper 30s. Winds will be lighter Mon due to the building high pressure. light NE wind, a sunny sky, and high temps in the low/mid 70s. High pressure ridging from the north accompanied by N-NE flow 5 kt or less night-time, 5 to 10 kt daytime, to prevail during this 24 hr period. Northerly winds will continue to gust near 20 kts overnight until they start to calm through Mon morning due to building high pressure.
Temperature-wise, we'll see another day of well above normal temperatures, though not quite as extreme as the past few days (highs in the low to mid 80s).
(Today and tonight) High pressure aloft will continue building over the Gulf of Mexico through the near term resulting in benign conditions once again. This high is expected to be unseasonably strong, with heights perhaps reaching as high as 5880m which would be around the 75th percentile of all TAE soundings for October 23. As a result, temperatures will remain slightly warmer than climatology tomorrow with highs areawide in the low 80s for our GA and AL counties and the mid 80s in our FL counties. Overnight lows in our AL and GA counties will be in the low to mid 50s with upper 50s to low 60s in our FL counties.
1230 AM CDT Mon Oct 23 2023 (Tonight) Even with a weak cold front moving through the area today winds were slightly weaker than yesterday keeping us out of Red Flag criteria. (Monday through Tuesday night) The overall wx pattern looks to remain fairly stagnant going into the new work week, as high pressure at the sfc becomes layered across the NE/mid Atlantic Basins, while an upper ridge pattern builds more into the SE region. The combination of these two wx features will translate into afternoon highs Mon/Tue returning to the mid 70s/near 80F, while overnight lows into early Tue trend more in the lower/mid 50s for most spots. The focus will then turn towards the Baja Peninsula in response to a digging upper trough axis, which may play a factor in the overall wx pattern going past mid week.
Some wet snow flakes could mix in over the highest elevations, with no accumulation. High pressure brings in dry weather and light winds today into Tuesday. Surface temperatures in the mid and upper 30s across the higher terrain points to the likelihood of snow mixing in. High pressure pushes in at the surface with dry air and light winds. Upper level heights will be rising as the trough moves east and a ridge moves into the Ohio Valley. Tonight high pressure will be over the area with dry air. Most of this week looks to feature a -PNA pattern with troughing out west and a strong southeast ridge generally featuring high pressure over our region.
320 AM CDT Mon Oct 23 2023 High pressure will remain centered over the central East Coast today and tonight, causing winds to become southerly across the PAH forecast area. Much warmer conditions area expected, with highs today in the middle 70s to around 80 degrees and lows tonight in the 55 to 60 degree range.
Water vapor imagery showing weak upper level trof moving across northern Colorado this afternoon with weak ridging building in tonight. There is a few light showers moving over higher terrain bordering Wyoming and Nebraska this afternoon with the trof which will diminish by early this evening. The flow aloft will shift southwesterly on Monday as next west coast trof dives off the southern California coast late Monday. Temperatures will be warmer again given the warming southwest flow pattern. Southwesterly flow aloft is expected for the CWA Monday night into Tuesday morning, with a weak upper trough pushing across late Tuesday into Tuesday night.
444 AM EDT Mon Oct 23 2023 High pressure building into the region will bring pleasant conditions and decreasing wind today. High pressure builds throughout the day with lingering clouds continuing to dissipate as flow shifts to the south. Areas of frost will be most likely over the south on Tuesday morning, and confidence on the lower side at this time for issuances as per collab with surrounding offices, so will just keep patchy wording in place for now.
(Today through Tuesday) Upper ridging now over the Mississippi River Valley with troughing along both Atlantic and Pacific Coasts. At the surface, high pressure was centered over Ohio. Upper ridging is expected to become pretty well established over the eastern Gulf of Mexico today and tomorrow. Forecast soundings indicate that most areas should warm into at least the middle and upper 80s today and Tuesday, with the possible exception of the Mississippi coastal counties on Tuesday, where a pretty persistent sea breeze could cut off temperatures in the lower 80s around midday.
Discussion: Surface ridging will remain anchored across the East Coast through the short term period with increasing heights aloft. Warmer temperatures today and dry air at the surface and aloft will produce low afternoon RH values across many locations with the lowest expected across northeast Tennessee, and southwest Virginia. The dry weather continues tonight with warmer overnight lows as winds begin to veer toward the southeast.
1130 PM CDT Sun Oct 22 2023 00Z upper air analysis places a upper-level trough axis along the East Coast of the United States while an upper-level ridge is beginning to build into the Lower Mississippi Valley. As of 8 PM CDT, temperatures range from the lower 50s over northwest Tennessee, and 60s elsewhere. CJC Warmer temperatures will return on Monday and last through midweek with highs in the low to mid 80s.
Highs across the south and southwest look to reach the low to mid 60s, with mid to upper 50s across the east/northeastern portions of the forecast area.
308 AM EDT Mon Oct 23 2023 Dry, cool high pressure will continue building into the forecast area, remaining over the region through the middle of the week. The anomalously strong ridge over the Southeast will lead to a warming trend starting mid week and keeps the area dry through the end of the week. Ridge axis just west of the Mississippi River and high pressure building further into the East Coast region. Satellite imagery shows the moisture from the remnants of Tropical Storm Norma moving along the ridge and bringing mid and high level moisture into the area. Temperatures this afternoon will be seasonably mild in the low 70s. High pressure will further settle into the area tonight and winds will go calm shortly after sunset.
Otherwise, significantly warmer temperatures today.
121 AM EDT Mon Oct 23 2023 High pressure building across the area overnight will result in dry weather and chilly temperatures. This will allow temperatures to drop to lows in the lower/mid 30s for most spots by sunrise Monday. Have continued with a Freeze Warning across the north and northeast counties where the probability of sub-freezing temperatures is greatest. Have a Frost Advisory across the remainder of the area, where sheltered and low- lying locations may dip to freezing but the probability of widespread freezing temperatures is lower.
Generally fair weather expected through the week with deep layer high pressure setting up across the E U. Ridging aloft building N across the Gulf and E across the Ohio Valley today into Tuesday will replace a departing NE U.
The upper-air pattern is driven by a southeast US ridge (working to delay rainfall toward the IN-OH state line) while numerous perturbations eject from the Southern Plains and eventually the Pacific Northwest through the week.
(Today through Tuesday) High pressure will build in today with a front to our south. Went a few degrees warmer than guidance through Tuesday to account for the drought conditions we find ourselves in as well as lowering the dewpoints in the afternoons.
1229 AM CDT Mon Oct 23 2023 (This evening through Monday) A strong upper low currently located over northern California will make its way southeastward into southern California during the overnight hours. The upper low will continue diving southeastward into Baja California during the day on Monday.