Aikyam-Lab/Synoptic-Bench huggingface dataset:
156 AM EDT Sun Mar 20 2022 Temperatures will trend noticeably cooler for the first day of Spring with gusty northwest winds and rain/snow showers over the Alleghenies on Sunday.
1126 PM MDT Sat Mar 19 2022 Water vapor shows upper ridge axis over the Rockies with trof along the west coast. At the surface, trof/warm front crossing the western Dakotas. Upper ridge axis shifts into the Northern Plains tonight, with broad southwest flow and warm advection continuing. Strong cold front will move into northeast WY in the afternoon and far western SD in the early evening, with very gusty northwest winds expected. Regarding moisture, not a ton of precip expected as trof splits a main upper low remains to our south.
- Drizzle/light rain ending this evening The low pressure system over Lake Huron will track off to the east this evening. Also the low level convergence weakens.
High pressure moving across the local area early this week will bring continued dry weather along with a warm up. Dry cold front poised to cross the FA and exit off the coast early this morning. WSW winds shift to WNW post cold front. Upper level trough to swing through the region midday/this afternoon resulting in SCT-BKN clouds. Cooler w/ highs in the l-m60s N to the m-u60s S. Trough aloft exits this evening to be followed by clearing w/ WNW winds waning tonight.
Surface analysis early this morning shows a strong area of high pressure over the Lower Mississippi River valley. with surface ridging extending north through the Mississippi Valley to western Ontario. GOES16 shows the back edge of the cloud shield over Central Indiana slowly sliding east as the associated area of low pressure over Quebec continues to push north. Water vapor imagery shows a strong ridge exiting the Rockies. Warm air advection on southerly winds is expected on Monday as a warm front surges to the southern Great Lakes. Aloft a deeper trough will be found over the western plains.
146 AM EDT Sun Mar 20 2022 A cold front exits east by sunrise. Another weak cold front will move through on Sunday.
Cooler temperatures move in for the morning, Sunday, but highs will recover back near 60 and near 70 on Monday as sunshine takes over.
The cold front stalled southeast of the marine portion of the forecast area moves off, with the residual rainshowers south of the coast moving off also. Sunday, with a dry airmass in place and the upper ridge approaching the forecast area from the west, temperatures will rebound to a bit above seasonal norms. Sunday night, another cool night is in store, with temperatures again dropping into the low to mid 40s over most of the forecast area. Monday will see temperatures rising into the mid to upper 70s as the upper ridge moves over the eastern Conus, combining with a mostly dry airmass over the forecast area.
1203 AM CDT Sun Mar 20 2022 (This evening through Sunday) Our dry weather pattern will continue for the remainder of the weekend as an upper level ridge works its way across the state. Southerly winds overnight will keep our temperatures relatively warmer compared to this morning. On Sunday, an upper level trough will begin to deepen over the Desert Southwest.
217 AM EDT Sun Mar 20 2022 A cold front will move through the region on Sunday with a renewed chance for rain showers. A cold front will begin to move through the area early Sunday morning with some light precipitation expected to develop across the region throughout the day as wind shift to the northwest. Boundary layer temperatures will remain challenging as much of the region will remain above freezing during the duration of the shower activity.
125 AM EDT Sun Mar 20 2022 Breezy and warm ahead of an approaching cold front with isolated strong to severe thunderstorms late this afternoon. Drier and cooler air will overspread the region Sunday and Monday with warming into mid week ahead of low pressure.
324 AM EDT Sun Mar 20 2022 Today will be much cooler with rain showers, especially from the Twin Tiers northward. A passing ridge of high pressure will bring back dry weather tonight into Monday, with temperatures trending milder.
No issues with this next set of TAFs as SE TX remains mostly un- der the influence of high pressure (even as it begins to move E).
But all guidance favors mid 30s on the low end tonight. JB Chattanooga Airport, TN 67 40 71 52 72 / 0 0 0 10 30 Knoxville McGhee Tyson Airport, TN 64 38 71 46 72 / 0 0 0 0 20 Oak Ridge, TN 65 38 71 46 71 / 0 0 0 10 30 Tri Cities Airport, TN 60 35 69 43 69 / 0 0 0 0 10.
A warming trend will also set in as mid/upper high pressure ridge shifts east in the wake of the exiting upper low. This ridging aloft will combine with a more southerly low level flow to push daytime high temps into the 60s to near 70 on Sunday, then into the lower half of the 70s on Monday. A deep upper level low pressure system will then slide east out of the Four Corners region and into the Southern Plains later Monday and Monday night.
300 AM EDT Sun Mar 20 2022 Today will be much cooler with rain showers, especially from the Twin Tiers northward. A passing ridge of high pressure will bring back dry weather tonight into Monday, with temperatures trending milder.
- One more warm day for at least parts of the area on Monday before turning much cooler.
Expect the highest winds across the higher elevations across the forecast area. Overnight low temperatures will be in the low to mid 50s.
307 AM EDT Sun Mar 20 2022 Clearing today and cooler, drier. A warming trend will prevail into mid week in advance of a cold front.
As it does, it will push the cold front responsible for gusty winds and precipitation to the east. So, for today, expect decreasing precipitation in the valleys and some lingering snow showers over the higher terrain and mountain passes. Upper level flow shifts northwesterly on Monday behind the departing trough.
207 AM EDT Sun Mar 20 2022 Cold front pushing across terminals overnight bringing MVFR to LCL LIFR cigs/vsbys thru Sun morning before gradually lifting with VFR returning Sun afternoon.
Temperatures across the region were mainly in the upper 30s to the lower 40s. For today, we expect to see plenty of sunshine with much warmer temperatures. Highs out east will likely top out in the upper 50s to the lower 60s. Out in the I-65 corridor highs mainly in the lower 60s are expected, with some mid 60 highs out toward the Natcher Parkway and points west. For tonight, mostly clear skies are expected as ridging at the surface and aloft will continue to be in control of our weather. Lows will generally range from the upper 30s to the lower 40s.
400 AM CDT Sun Mar 20 2022 (Issued 400 AM CDT Sun Mar 20 2022) Today through Monday: It's going to be a nice day across southern Wisconsin thanks to high pressure overhead and weak warm air advection. A lake breeze will develop midday, so it will be much cooler by the lake this afternoon. The warm front setting up across central WI will be the focus for light rain on Monday, which may clip the northern fringe of our forecast area from Montello to Fond du Lac to Sheboygan during the morning.
133 AM EDT Sun Mar 20 2022 Sunday will be much cooler with rain showers, especially from the Twin Tiers northward. A passing ridge of high pressure will bring back dry weather Sunday night into Monday, with temperatures trending milder. Late tonight will be a break before showers return Sunday with the upper level trough and multiple short waves. This clears out late in the day with the trough east of us. Sunday night will have slow clearing as drier air moves in ahead of high pressure. Upper level ridging will build across the Upper Great Lakes on Monday, with most of the Northeastern U. still under the influence of an upper level low over the Gulf of Saint Lawrence.
Large scale flow this morning consisting of a digging trough over the western states with a low amplitude ridge across the central CONUS. At the surface, high pressure was centered over southern MO with southerly winds prevailing over the central Plains.
While that high pressure area shifts east today, allowing for return flow from the Gulf into the region, it may be too little to overcome the relatively deep mixing expected today with dry adiabatic lapse rates to around 850 MB and potentially higher. Blending the ARW into the forecast kept afternoon dewpoints in the low to mid 30 degree range, which is still warmer than where they are now but not nearly as moist as some other models. The GFS continues to show a pattern suggestive of 500mb closed low strong/severe storms.
446 AM EDT Sun Mar 20 2022 High pressure will move from over the Tennessee Valley today to the central and southern Appalachains tonight with dry weather through Monday night.
(Today and tonight) Developing/deepening trough across the west will begin to shift east later today. In advance of this trough, deep southerly flow will develop and strengthen, becoming quite strong by afternoon. Upper trough will continue to approach the area tonight and some rain showers will be possible by late tonight across the west.
An approaching storm system over the Central Great Basin area will allow low pressure to deepen over the Southern High Plains tonight. Normal lows for 20 March are in the mid and upper 30s while normal highs are in the lower 60s. As the mid/upper trough emerges from the Southern Rockies on Monday, diffluent mid/upper flow and large-scale forcing for ascent will spread downstream across the Central and Southern Plains with increasing chances for showers and storms as we move through the day.
Outside of the elevated fire danger concerns tonight will be on the cooler side as nocturnal cooling is maximized under clear skies. Lows tonight will fall into the upper 30s north of I20 and the low 40s south of I20.
1147 PM CDT Sat Mar 19 2022 Fair skies and lighter winds will prevail across central and southeast Illinois during the rest of tonight, allowing low temperatures to dip into the lower to middle 30s. Even warmer temperatures in the lower 70s are expected on Monday with breezy south winds, as dry weather continues through at least early Monday evening. Aloft an upper level trof was shifting just east of IL at mid evening. Temps have cooled into the upper 30s to mid 40s and should cool toward dewpoints in the low to mid 30s by daybreak. Given clear skies and light winds, excellent radiational cooling will allow overnight lows to bottom out in the lower to middle 30s. Given sunshine and southerly flow, highs will likely reach the lower 70s.
244 AM CDT Sun Mar 20 2022 Fairly sharp upper trough axis now passing, and an upper ridge will build into the late today, which will hold well into Mon night. A deep upper trough across the plains moves into the eastern US late in the day. This upper trough will eventually close off Tue night. Our first closed upper low will move up into the Great Lakes early Thu, but a strong southern stream will spin up yet another closed upper low over the plains by Thu afternoon, although the new ECM is not closing off this low.
352 AM CDT Sun Mar 20 2022 High pressure over the area bringing clear skies, light to calm winds and early morning temperatures in the 30s. Today: Warmer temperatures as high pressure shifts to our east as winds become southwest then southeast. Tonight: Strong warm air advection kicks in as a deep trough moves into the Rockies. This should increase mid/high clouds, and with a southeast wind, this will be a warmer night.
216 AM MDT Sun Mar 20 2022 A cold front will move through eastern Montana today with an upper trough following it tonight. Any precipitation that occurs will be in hit or miss rain showers with the best chance along the cold front. The front will also bring somewhat cooler temperatures and gusty NW winds today. The chance of showers will continue into tonight in the east with the upper trough moving through.
High pressure to build across the area today this afternoon through early this week offering dry weather. H8 thermal trof shifts east with low level WAA developing today. Clouds will decrease as the low level warm advection develops. Temperatures will be 5 to 8 degrees above normal with highs ranging from the upper 50s north to the lower 60s south. Expect lows from the upper 30s east to the lower 40s west. Warm reading look to be around 15 degrees above normal with highs ranging from the upper 60s to the lower 70s.
Temperatures should continue to be quite mild today, but cooler for Monday. The majority of this forecast will continue to key on the first couple days of the period as an expansive area of low pressure takes up a large part of the central CONUS.
1246 AM EDT Sun Mar 20 2022 A cold front will continue to move farther out to sea overnight.
426 AM EDT Sun Mar 20 2022 Very mild air will spread into the region today and persist Monday as an upper level ridge builds over the region.
533 AM EDT Sun Mar 20 2022 Currently - The Keys reside in a zone of rather flat pressure gradient as a trough moving off the Atlantic coast separates a high cell along the Louisiana coast and an Atlantic ridge reaching into the northern Bahamas. Lower level ridging will remain across our area but, in the short term will be quite weak. This high will initially bring in a short shot of slightly cooler and drier air before quickly returning to well above normal as winds box around.
633 AM CDT Sun Mar 20 2022 Summary: Mostly sunny skies today with highs in the lower 50s.
659 AM EDT Sun Mar 20 2022 Very mild air will spread into the region today and persist Monday as an upper level ridge builds over the region.
The weather system that brought some showers along with the windy conditions yesterday had passed to the east and a ridge of high pressure is forecast to influence the regions weather today with mostly dry conditions. With the ridge in place a challenge could be with the extent and coverage of showers that may develop across the region tonight and Monday. With the passage of a cold front yday. high temps today are forecast to remain below normal and become a few degrees warmer tomorrow.
642 AM EDT Sun Mar 20 2022 Clearing today and cooler, drier. A warming trend will prevail into mid week in advance of a cold front.
306 AM MDT Sun Mar 20 2022 Colder conditions and gusty west to northwest winds spread across the region today behind a cold front that moved through the region overnight.
1006 AM EDT Sun Mar 20 2022 High pressure to build across the area today this afternoon through early this week offering dry weather. Expect lows from the upper 30s east to the lower 40s west. Warm reading look to be around 15 degrees above normal with highs ranging from the upper 60s to the lower 70s.
Fairly sharp upper trough axis now passing, and an upper ridge will build into the late today, which will hold well into Mon night. A deep upper trough across the plains moves into the eastern US late in the day. This upper trough will eventually close off Tue night. Our first closed upper low will move up into the Great Lakes early Thu, but a strong southern stream will spin up yet another closed upper low over the plains by Thu afternoon, although the new ECM is not closing off this low.
623 AM CDT Sun Mar 20 2022 (Today and tonight) Developing/deepening trough across the west will begin to shift east later today. In advance of this trough, deep southerly flow will develop and strengthen, becoming quite strong by afternoon. Upper trough will continue to approach the area tonight and some rain showers will be possible by late tonight across the west.
1000 AM EDT Sun Mar 20 2022 High pressure will build across the Carolinas today with breezy winds and low humidity.
Tonight, winds will remain breezy ahead of the approaching system and surface cold front. A cold front then pushes through the area on Monday, turning winds to the northwest. Additionally, areas of rain will move in from the southwest as a deep upper trough pushes into the Plains.
Breezy conditions will prevail with strong wind gusts across the high elevations of the Mariposa, Madera, Fresno, and Tulare County portions of the Sierra Nevada.
An upper level trof and its associated cold front will bring gusty winds, areas of blowing dust, isolated to scattered valley showers and mountain snow showers, and a slight chance of a thunderstorm later today into early Monday morning. Cooler Monday with breezy to locally windy NW winds. A cold front will bring isolated to scattered showers and perhaps a thunderstorm to the area from late morning into early this evening. Cold front approaches tomorrow with RFW conditions east of Tucson. Much cooler Monday, but still windy.
High pressure moving across the local area early this week will bring continued dry weather along with a warm up. Dry cold front has moved offshore and the wind has shifted from WSW to WNW. Upper level trough to swing through the region midday/this afternoon resulting in SCT- BKN clouds. Cooler w/ highs in the l-m60s N to the m-u60s S. Trough aloft exits this evening to be followed by clearing w/ WNW winds waning tonight.
The main target of opportunity for today is temperatures, as afternoon highs look to fall on the higher end of model guidance. Today's sharp warm-up is a direct result of the strong upper-level trough currently digging toward Baja California. With the center of low pressure centered over the Ozarks late Monday night, and the warm front displaced well south of central Illinois, it's unlikely we'll see much convective activity.
401 AM CDT Sun Mar 20 2022 Summary: Mostly sunny skies today with highs in the lower 50s.
634 AM CDT Sun Mar 20 2022 High pressure centered over the lower Mississippi Valley along with a an upper level ridge which is building east from the Great Plains will provide the region with a sunny and warm day today. The bias corrected MOS is several degrees warmer, which looks more reasonable given the strong insolation and low level warm advection today. This will produce warmer lows on Monday morning in the mid 40s to low 50s. The synoptic pattern remains unchanged with a long wave trough moving into the Great Plains Monday, and a closed low hanging off the southern end of the trough in west central Texas/southeast New Mexico. Deterministic guidance keeps the core of the low level jet and resultant deep moisture convergence back over the eastern Plains ahead of the trough during the daylight ours on Monday.
236 AM PDT Sun Mar 20 2022 'Sunday Spring' starts out on the cooler side, with below normal highs ahead of a warmup. Warmer temperatures and dry conditions kick off the new week, with anomalously warm daytime highs by midweek. Our first day of spring will be cooler than average, with valley highs in the low to mid 50s, Sierra temps ranging 30s to 40s. This colder air mass will be replaced by a warming trend as high pressure resumes control of our pattern for the week ahead. Sierra ridges gust 60-75 mph during the afternoon Sunday, relaxing to 20-30 mph for the overnight period into Monday. Monday, winds calm as the ridge advances overhead, setting up for the subsidence and warming that will have us really feeling spring.
High pressure over the area bringing clear skies, light to calm winds and early morning temperatures in the 30s. Today: Warmer temperatures as high pressure shifts to our east as winds become southwest then southeast. Tonight: Strong warm air advection kicks in as a deep trough moves into the Rockies. This should increase mid/high clouds, and with a southeast wind, this will be a warmer night.
515 AM MDT Sun Mar 20 2022 Updated Aviation Discussion Colder conditions and gusty west to northwest winds spread across the region today behind a cold front that moved through the area overnight.
High pressure to build across the area today this afternoon through early this week offering dry weather. H8 thermal trof shifts east with low level WAA developing today. Temperatures will be 5 to 8 degrees above normal -- with highs ranging from the upper 50s north to the lower 60s south. Expect lows from the upper 30s east to the lower 40s west. Warm reading look to be around 15 degrees above normal with highs ranging from the upper 60s to the lower 70s.
Temperatures widely dropped to the lower to mid 70s overnight with the exception of northern Big Pine Key, which had an observed low of 67 degrees, thanks to calm winds and clear skies. Surface convergence (a source of lift), enhanced moisture column, and some instability supports the best chance of showers and isolated thunderstorms for our southeastern zones through this afternoon as the high progresses eastward, surface convergence decays, and daytime heating ensues. Overall light to gentle variable winds will gradually turn northeast to east and begin to freshen tonight in association with a high pressure spreading through the southeastern United States behind a decaying frontal boundary.
Mostly clear skies and below average temperatures are occurring around the area today behind the cold front that has moved into UT/AZ. We'll see some increasing high clouds moving in from the north tonight as moisture moves over the building ridge of high pressure.
Otherwise, a pleasant day is in store for us with mostly sunny skies and temperatures warming into the low to mid-60s inland and upper 50s near the lake. Warmer conditions are in store for Monday with afternoon high temperatures climbing into the upper 60s to around 70 degrees area wide. Yack Guidance remains in good agreement this morning digging the vigorous trough, currently along the west coast, southeast into the southern Plains Monday into Monday night while closing off a mid and upper level circulation.
This has brought plenty of sunshine to the area along with warmer temps on mainly west winds of 5 to 10 mph with occasional gusts to around 15 mph. They all depict mid level ridging building strongly over Kentucky tonight into Monday in advance of a deep full latitude trough moving east out of the Four Corners Region.
Unfortunately it will not result in too much relief for us as temperatures will only drop into the lower 80s instead of the middle 80s, however this will also result in dewpoints dropping into the 60s, providing some relief to the mugginess we have been feeling for the past week.
A strong upper level trough currently over the southwest US will move into the Southern Plains Monday. At the surface, low pressure will deepen just to our northwest and put much of area in a modified warm sector by early afternoon. (Monday night through next Sunday) Monday night the strong low pressure system will push northeastward and drag a cold front out of the Panhandle into west Texas.
158 PM EDT Sun Mar 20 2022 High pressure for tonight and Monday. Cooler and showery by the weekend. The high pressure will remain in place for tonight and Monday.
The winds will back overnight and low level moisture return will continue to increase via a LLJ ahead of an approaching mid to upper trough.
128 PM EDT Sun Mar 20 2022 High pressure will move in tonight and allow winds to quiet down. We warm up again early this week before a cold front enters the area midweek. Winds will stay up at least til sunset and will decouple later tonight across the lower elevations as high pressure builds in from the west. This will allow valleys to slide back into the upper 20s to mid 30s, while ridges stay in the upper 30s to lower 40s. The high moves to the coast of the Carolinas Monday afternoon.
202 PM MDT Sun Mar 20 2022 Water vapor shows upper ridge over the Plains with elongated trof moving into the Rockies. At the surface, cold front is moving into northeast WY early this afternoon, with warm/dry/breezy conditions ahead of the front. Cold front will move into far western SD early this evening, then sweep through the rest of the forecast area this evening and overnight.