Aikyam-Lab/Synoptic-Bench huggingface dataset:
331 AM CDT Fri Sep 16 2022 Upper level troughing will keep western and central North Dakota under the influence of weak southwest flow aloft through the short term. Expect a cool day with below normal highs ranging from the mid 50s across the eastern Turtle Mountains, to the lower 70s over the far southwest. Tonight's lows will dip into the lower 40s to lower 50s. The majority of this precipitation should generally move out of the area by late Saturday afternoon as we briefly transition to zonal flow aloft ahead of an approaching ridge axis. It will be slightly warmer on Saturday but still cool with highs in the mid 60s to mid 70s.
Fcst max temps in the low 70s to around 80F will be anywhere from +1-2 to +6-8F above climo and trend +3-10F warmer vs. Fcst min temps in the 50s are a few degrees warmer vs.
236 AM EDT Fri Sep 16 2022 High pressure will keep our area dry and seasonal into the weekend.
With weak troughing across the western United States and dry westerly flow in the desert southwest, southeast Arizona continues to dry out.
(Today through Saturday) High pressure at the surface and aloft is keeping a dry, stable air mass in place over Middle Tennessee as sunny skies persist.
As of late afternoon, an upper level ridge was centered over the MS Valley with the ridge axis extending north to the western Great Lakes while an upper level low was centered over the Maritimes with a trough extending south into portions of the Atlantic. At the sfc, high pressure was centered across the OH Valley. Tonight and Friday, the axis of the upper level ridge will shift east and into eastern KY by late Friday. 500 mb height falls are anticipated Friday night though sfc and upper level ridging will remain dominant. The dominant force in the extended should be high pressure.
127 AM EDT Fri Sep 16 2022 High pressure to the north keeps the area dry for the foreseeable future. A mid and upper level ridge just west of the Appalachians will slide east over the next 24 hours, maintaining a bone dry airmass above a subsidence inversion between 5000-7000 feet AGL. At the surface, high pressure centered across the eastern Great Lakes will move eastward across New England while extending a ridge axis southward across the Carolinas. As the high pushes offshore, some easterly return flow sets up, allowing dewpoints at the coast to recover slightly. Lows Friday night in the lower 60s, generally being 1-3 degrees warmer Saturday night.
The moisture gradient over the region has resulted in a similar disparity in temperatures this morning with readings from the lower 60s across parts of central LA to the middle and upper 70s across coastal SW LA and SE TX.
High pressure at the surface and aloft will provide dry conditions through the period.
1048 PM CDT Thu Sep 15 2022 Tonight, ridging over the Midwest will deamplify as an upper level trough moves onto the west coast, progressing eastward, and as another trough pulls off the east coast. As the upper trough deepens over the west coast, ridging in the central CONUS will amplify.
(Today through Saturday) Upper ridging has weakened a bit over the last 24 hours with the flow becoming more zonal across the middle of the country. At the surface, high pressure extended from the Great Lakes to eastern Texas with the old frontal boundary that has been over our coastal waters trying to drift a bit northward. As upper and surface ridging shifts eastward over the next 36 hours, moisture levels increase somewhat today over the lower portions of the Louisiana coastal parishes, but anything much more than an isolated shower or storm is probably ambitious as precipitable water values barely get above an inch. Have trended toward the warmer end of the guidance envelope on highs per verification trends the last couple days.
A flat mid/upper level ridge will remain over the southeastern U. At the surface, high pressure will be centered along the Atlantic Coast, allowing for a low level southerly breeze locally.
1212 AM EDT Fri Sep 16 2022 High pressure will build across the region into Saturday.
1123 PM EDT Thu Sep 15 2022 High pressure will maintain dry weather and comfortable humidity levels through the weekend.
A ridge of high pressure remains in control through early Saturday morning keeping the area dry. High temperatures are expected to be a few degrees warmer than yesterday as heights build overhead. Ongoing dry spell persists into the short term period beneath triumphant ridging aloft and attendant high pressure at the surface. This, coupled with radiational cooling amid the positioning of the high and mostly clear skies will yield dense river valley fog each morning.
(Today and tonight) Warm, sunny, and dry conditions are expected again today, as high pressure persists across the area through tonight. High temperatures today are expected to reach the low to mid 90s, with overnight lows in the upper 60s to lower 70s.
High temps should be a few degrees warmer area wide.
106 AM EDT Fri Sep 16 2022 Expect dry conditions under partly to mostly clear skies through Saturday with highs ranging from the upper 70s to the low to mid 80s.
Overall high pressure continues through the short term. Looks like the center of the ridge will remain over the Ohio Valley and will provide the region with an overall easterly flow.
254 AM EDT Fri Sep 16 2022 Patchy early morning fog will be the main concern today as central Indiana will remain influenced by a broad upper ridge from the Great Lakes to the southern states. The only cloud cover will be passing cirrus ahead of an upper Midwest to southern Plains trough. This will result in warm air advection and combined with filtered sunshine, above normal temperatures with afternoon highs in the lower and middle 80s. Tonight will basically be a repeat of the previous as the upper ridge remains the main influence and shunts the upper Midwest and Plains trough to the Great Lakes.
Latest activity was forming mainly over the higher elevations. An upper trough will move eastward and across our area tonight. A weaker upper trough will approach the area on Friday. Showers and thunderstorms will be generally limited to the higher elevations of SW Idaho Friday afternoon and evening as a drier/stable air mass enters SE Oregon. Southwest flow aloft will develop on Saturday as an upper low forms off the coast. Showers, along with a slight chance of thunderstorms, will develop initially in SW Idaho and expand into the remainder of the area Saturday evening as the low moves closer.
The faster flow of the prevailing westerlies aloft will remain to our north during this time and will not support any cold fronts to make it this far south. At the surface, our main feature this morning is a ridge of high pressure just to our east over the spine of the Appalachians. Modest air mass modification will allow temperatures and dew points to creep higher, but our flow will still originate out of the high and keep gulf moisture shut off. The dominant force in the extended should be high pressure.
Most of this activity should diminish near or just after sunset as the low level jet continues to veer. Expect afternoon temperatures to be around 2-3 degrees warmer today as heights increase slightly and south to southwesterly low level flow continues.
Behind the low, winds have shifted northwesterly and, while dewpoints have decreased some, a deck of IFR and MVFR ceilings have become established thanks to weak CAA. Meanwhile, patchy fog has developed in the trough axis across portions of the Prairie Coteau (~1. The high temperature forecast will be most impacted by this across the northern CWA - a longer period of cloud cover would translate to slightly cooler temperatures (upper 60s instead of low 70s).
Quiet weather continues across most of the eastern half of the CONUS this afternoon as mid- and upper-level ridging builds across the Ohio and Tennessee valleys. At the surface, a ridge of high pressure extends roughly north-south from central Ontario down into the Carolinas. Upper level ridging is expected to hold, though heights will come down somewhat as the ridging attempts to retrograde slightly back out to the west.
(Now through Saturday) A deep layer dry and subsident airmass remains firmly in place across the forecast area this evening underneath an upper level ridge of high pressure. Overnight low temperatures look on track to range in the lower to mid 60s over our inland communities and in the upper 60s to lower 70s along the immediate coast and beaches. Upper level ridging will continue to extend across much of the Deep South and into the Eastern Seaboard region through Saturday afternoon, while the low level ridge axis continues to stretch along the Eastern Seaboard and into the southeastern states/ northeastern Gulf. Lows Friday night range in the lower to mid 60s inland and in the upper 60s to mid 70s near the coast.
This will cause winds over southern Indiana and central Kentucky to veer from the east-southeast towards the south, but with high pressure extending west into the CWA, winds will remain on the lighter side, around 5 mph. Scattered high level clouds will persist, so temperatures will remain in the low to mid 60s. Some of our cooler spots will slip just below 60. Upper ridging will refocus from the Southeast to the southern Plains with near- to below-normal atmospheric moisture content over the Ohio and Tennessee valleys.
High pressure at the surface and aloft will provide dry conditions through the period. Ongoing dry spell persists into the short term period beneath triumphant ridging aloft and attendant high pressure at the surface. This, coupled with radiational cooling amid the positioning of the high and mostly clear skies will yield dense river valley fog each morning.
1016 PM CDT Thu Sep 15 2022 (Tonight) After sunset, temperatures have dipped into the upper 60s to lower 70s rather quickly, and should be in the lower to middle 60s in outlying areas soon. Given dew points in the lower 60s and light flow, have added patchy fog to some areas, particularly some of the low lying river valleys in the area.
(Today through Saturday afternoon) The trough that brought some rainfall across southeast New Mexico and the northern Permian Basin yesterday evening will eject into the Upper Midwest today. A second, much weaker, trough will move into the Central Rockies by this afternoon. Otherwise, heights begin to slowly build as the ridge strengthens, putting an end to precipitation chances on Saturday. Afternoon high temperatures in the low to mid 90s with morning low temperatures in the mid to upper 60s can be expected for much of the area.
305 AM EDT Fri Sep 16 2022 Upper level ridge (588 DAM at 500 MB per 00z DTX Raob) will weaken slightly but still hold firm today, providing a dry and warm day. Low level southwest flow with 850 MB temps up around 15 C suggests highs in the lower 80s. The upper level flow will continue to flatten further as we head into Saturday, but increasing southwest flow will advect even warmer air into the region, as 850 MB temps push up to 17 C.
Lows tonight will be warmer than prior nights, with temperatures dropping into the upper 60s across Alabama and Georgia, and the low 70s across the Florida Panhandle and Big Bend.
1237 AM CDT Fri Sep 16 2022 Upper-level ridge centered across the region to maintain mostly clear skies overnight.
Temperatures will be a little warmer today than yesterday, mainly in the low to mid-90s area wide, with another mild overnight as southeast surface flow most of tonight into early tomorrow will help keep dewpoints around low to mid 60s in most locations.
318 AM EDT Fri Sep 16 2022 (Today through Saturday) High pressure will continue to dominate the weather pattern through the short term with dry conditions and mostly clear skies.
As mentioned in the previous discussion, there is still a slight chance for a few isolated showers/thunderstorms to move into portions of northeast Oklahoma Friday morning in association with approaching upper trough.
This will result in somewhat dampened ridging across the area. The weather will continue to be fairly quiet through much of the extended as a high pressure dome gets re-established across much of the middle of the country.
359 AM EDT Fri Sep 16 2022 High pressure builds slowly southward from central New York through Saturday.
315 AM EDT Fri Sep 16 2022 High pressure will maintain dry weather through most of the weekend.
(Today) The center of an amplified mid-level ridge remains positioned across central MS this morning, with the remnant circulation associated with a vort max which traveled southward along the periphery of the ridge yesterday morning now stationary across east-central AL/west-central GA. Highs will range from the lower 80s in elevated terrain to the m-u 80s in the valley.
641 AM CDT Fri Sep 16 2022 (Today) The center of an amplified mid-level ridge remains positioned across central MS this morning, with the remnant circulation associated with a vort max which traveled southward along the periphery of the ridge yesterday morning now stationary across east-central AL/west-central GA. Highs will range from the lower 80s in elevated terrain to the m-u 80s in the valley.
A trough will bring some shower activity to the area today.
700 AM EDT Fri Sep 16 2022 High pressure will keep our area dry and seasonal into the weekend.
643 AM CDT Fri Sep 16 2022 (Today through Saturday) High pressure at the surface and aloft is keeping a dry, stable air mass in place over Middle Tennessee as sunny skies persist.
922 AM EDT Fri Sep 16 2022 High pressure will keep our area dry and seasonal into the weekend.
621 AM CDT Fri Sep 16 2022 (Today through Saturday afternoon) The trough that brought some rainfall across southeast New Mexico and the northern Permian Basin yesterday evening will eject into the Upper Midwest today. A second, much weaker, trough will move into the Central Rockies by this afternoon. Otherwise, heights begin to slowly build as the ridge strengthens, putting an end to precipitation chances on Saturday. Afternoon high temperatures in the low to mid 90s with morning low temperatures in the mid to upper 60s can be expected for much of the area.
Scattered to numerous showers and storms will be possible each day as a stalled frontal boundary across the northern waters dissipates and weak ridging builds in from the north through the weekend.
An approaching low pressure system will bring increasing winds Saturday but rain chances remain across northeastern Nevada. The low is expected to slowly make its way towards the Great Basin bringing cooler temperatures, better chances of rain and even mountain snow to the state by midweek. A deepening trough and upper-low descending southward from the northeastern Pacific will bring increased south-southwest winds to the region Saturday with some lingering shower and thunderstorms activity across mainly Elko county.
733 AM EDT Fri Sep 16 2022 High pressure will maintain dry weather through most of the weekend.
Upper level troughing will keep western and central North Dakota under the influence of weak southwest flow aloft through the short term. Expect a cool day with below normal highs ranging from the mid 50s across the eastern Turtle Mountains, to the lower 70s over the far southwest. Tonight's lows will dip into the lower 40s to lower 50s. The majority of this precipitation should generally move out of the area by late Saturday afternoon as we briefly transition to zonal flow aloft ahead of an approaching ridge axis. It will be slightly warmer on Saturday but still cool with highs in the mid 60s to mid 70s.
Flat zonal upper level pattern will prevail for one last day, before heights begin to lower with troughing over the weekend as upper level low over British Columbia drops southward.
558 AM EDT Fri Sep 16 2022 High pressure builds slowly southward from central New York through Saturday.
538 AM EDT Fri Sep 16 2022 High pressure will maintain dry weather through most of the weekend.
703 AM EDT Fri Sep 16 2022 A broad area of high pressure centered over the Appalachians maintains control of aviation weather in SE MI today and tonight. Upper level ridge (588 DAM at 500 MB per 00z DTX Raob) will weaken slightly but still hold firm today, providing a dry and warm day. Low level southwest flow with 850 MB temps up around 15 C suggests highs in the lower 80s. The upper level flow will continue to flatten further as we head into Saturday, but increasing southwest flow will advect even warmer air into the region, as 850 MB temps push up to 17 C.
609 AM CDT Fri Sep 16 2022 (Today and tonight) Warm, sunny, and dry conditions are expected again today, as high pressure persists across the area through tonight. High temperatures today are expected to reach the low to mid 90s, with overnight lows in the upper 60s to lower 70s.
(Today through Saturday) High pressure will continue to dominate the weather pattern through the short term with dry conditions and mostly clear skies.
Temperatures are well on track to reaching into the lower 90s with dew points in the mid to upper 70s.
740 AM EDT Fri Sep 16 2022 High pressure builds slowly southward from central New York through Saturday.
316 PM EDT Fri Sep 16 2022 The warm front attached to a low pressure system centered over nw MN remains situated across Lake Superior and the Keweenaw this afternoon. These areas have mostly stayed in the cooler 60s. Patchy dense fog over the Keweenaw could lift some in the next few hours as showers moving over the area stir up the low-levels. Upper air pattern will consist of a broad 500 mb trough across the western U. In the extended, the GFS and ECMWF show a 500 mb closed low off the CA coast embedded in a western U. trough 12z Tue with a ridge across the central U. and a trough in New England. The trough in the western U.
222 PM CDT Fri Sep 16 2022 Tranquil but very warm weather will continue the rest of today through much of the weekend, as the region remains under the influence of high pressure centered over the central Appalachian Mountains.
203 PM MDT Fri Sep 16 2022 19z surface analysis had lee trough from central MT into western NE, where low pressure was developing. Low will deepen some through the evening hours as it lifts northeast, taking warm front along for the ride. 0-6km bulk shear increasing, forecast to reach 30-40kts this evening near warm front.
400 PM EDT Fri Sep 16 2022 Late this afternoon, an upper level ridge was centered over the northwest corner of the Gulf of Mexico with the axis of the upper level ridge extending northeast into the OH Valley and north into the Great Lakes. At the sfc, a ridge of high pressure was centered across the Appalachians while an area of low pressure was centered over the upper MS Valley. Temperatures this afternoon are roughly 3 degrees or so warmer than yesterday afternoon while dewpoints are slightly higher as well. Lows should average a degree or two warmer than the previous night which is in line withe recent trends. Guidance suggests highs another degree or two warmer for Saturday. High pressure will continue to remain present over the forecast area.
1238 PM CDT Fri Sep 16 2022 (Rest of Today) High pressure remains in place over the eastern CONUS and the eastern Canada this morning. Area temperatures are currently in the lower 70s east of the I-65 corridor and in the mid to upper 70s further west.
Otherwise, low level moisture will continue to increase overnight and give way to a warmer night with increased humidity and lows mostly in the low to mid 70s. Broad ridging overhead will prevail into Saturday and keep North & Central Texas subsident with slightly warmer temperatures than today.
The faster flow of the prevailing westerlies aloft will remain to our north during this time and will not support any cold fronts to make it this far south. At the surface, our main feature this morning is a ridge of high pressure just to our east over the spine of the Appalachians. Modest air mass modification will allow temperatures and dew points to creep higher, but our flow will still originate out of the high and keep gulf moisture shut off. High pressure will continue to remain present over the forecast area.
1230 PM CDT Fri Sep 16 2022 (Today through Saturday) High pressure at the surface and aloft is keeping a dry, stable air mass in place over Middle Tennessee as sunny skies persist.
SE Oregon and SW Idaho reside between a departing upper trough to the east and approaching one to the west. However, there is residual moisture and instability for scattered showers and isolated thunderstorms this afternoon in the higher elevations of SW Idaho.
(Rest of Today) High pressure remains in place over the eastern CONUS and the eastern Canada this morning. Area temperatures are currently in the lower 70s east of the I-65 corridor and in the mid to upper 70s further west.
The combination of an upper trough across the West Coast and an upper high across the Gulf Coast will keep upper flow mostly out of the south west tonight through tomorrow. This will keep things on the warm side with highs in the low to mid 90s with overnight lows in the mid 60s to around 70.
Lows tonight range from the mid 60s well inland to the lower 70s at the coast.
Since this rain has been quite stubborn to exit the area, it has kept temperatures considerably cooler than originally expected, and as such today's forecast highs have been cut back by a substantial amount. Given the cooler temperatures and plenty of surface moisture, it appears likely that fog will be present in many locations overnight. As for tomorrow, expect a much drier and warmer day as high pressure nudges down from Canada.
Expanding our scope, an inverted trough at the surface lies across the eastern half of the Gulf of Mexico. Thereafter, the inverted trough will remain generally in place across the Gulf. Meanwhile, a mid to upper level low is moving southeast and transit across the Florida Peninsula through the weekend. This feature may actually aid in keeping the inverted trough essentially stalled across the Gulf of Mexico. Although the best moisture will be north of the island chain, the proximity of the inverted trough and any potential convection could lead to convection back building to the southeast over the next several days.
1224 PM CDT Fri Sep 16 2022 (Today through Saturday) ï»¿The upper air pattern across the country early this morning shows an upper ridge over the SE U. Closer to home, a short wave trough was moving across the plains states aiding in developing some convection from KS up through MN. And farther west, a low amplitude trough was moving into the Great Basin region.
A cold front Today will result in breezy winds across much of the region.
1220 PM CDT Fri Sep 16 2022 (Today and tonight) Warm, sunny, and dry conditions are expected again today, as high pressure persists across the area through tonight. High temperatures today are expected to reach the low to mid 90s, with overnight lows in the upper 60s to lower 70s.
114 PM EDT Fri Sep 16 2022 A broad area of high pressure centered over the Appalachians maintains control of aviation weather through tonight. Upper level ridge (588 DAM at 500 MB per 00z DTX Raob) will weaken slightly but still hold firm today, providing a dry and warm day. Low level southwest flow with 850 MB temps up around 15 C suggests highs in the lower 80s. The upper level flow will continue to flatten further as we head into Saturday, but increasing southwest flow will advect even warmer air into the region, as 850 MB temps push up to 17 C.
250 PM CDT Fri Sep 16 2022 A broad upper trough in the western CONUS is helping create quasi- zonal flow in the middle of the country. As the low level jet erodes Saturday morning, so will the chance of precipitation.
316 PM EDT Fri Sep 16 2022 Anti-cyclonic flow in the lower half of the troposphere continues to sustain mild conditions across the southern Great Lakes region. The geopotential ridge axis is loosening grip farther aloft, allowing for moisture transport and cloud development. The longwave ridge will maintain its meridionally upstream tilt with only a slight drift eastward through much of the weekend.