Aikyam-Lab/Synoptic-Bench huggingface dataset:
The front along the coast will move back toward the north as a warm front tonight. This will bring warmer, moister air into our CWA ahead of this front. A cold front will develop south of the low and move through West Texas and into our CWA from the northwest.
Areas of showers associated with the upper low and mid-level deformation/trowal will continue to gradually slide east into the evening and diminish as the low passes east with clearing spreading eastward as high pressure approaches. A much nicer Monday is in store with lighter winds and more sunshine thanks to a ridge of high pressure across the area.
An upper level trough will be passing over the region today providing some showers to most of the forecast area and even a slight chance of thunderstorms over the eastern portion of the forecast area through this evening. There should e a several hour break overnight from showers, but the next strong cold front will be reaching the area starting 12z with another round of showers.
221 PM EDT Sun Mar 29 2020 Strong southwest winds will continue to gust up to 50 mph this afternoon into early this evening as deep low pressure tracks into the Great Lakes region. Fairly quiet weather is forecast for the start of the work week as the upper low continues a slow eastward progression into the eastern Great Lakes.
1222 PM CDT Sun Mar 29 2020 18Z TAF issuance Winds will continue to return to the southeast trough the afternoon and become gusty across the KMAF, KINK, and KFST terminals.
An upper level trough will be passing over the region today providing some showers to most of the forecast area and even a slight chance of thunderstorms over the eastern portion of the forecast area through this evening.
A mid level trof will emerge from the Southwest U. This low will strengthen a bit and bring Gulf moisture northward into the southern Plains Monday afternoon.
313 PM EDT Sun Mar 29 2020 The upper low now churning just south of Green Bay, Wi will move across nrn Lower Mi and nrn Lake Huron this afternoon and evening. The region of low level moisture wrapping around this system and ascent tied to mid level short wave impulses rotating along the base of the upper low will sustain scattered to numerous rain showers well into tonight. A peak of sun earlier today pushed temps into the low 60s over much of the area. This steepened the low level lapse rates enough to support a few intervals of strong winds along the lead edge of surface cold push. The low level moistening and rain showers is also reducing the degree of boundary layer mixing upstream. The upper low will depart to the east of the region on Monday.
Blustery conditions will persist into the evening hours as low pressure exits stage northeast this evening. One last vort lobe enters from the northwest this evening, but with the loss insolation and the low departing quickly to the northeast should dissipate rather quickly this evening.
resultant light westerly downslope flow has allowed temperatures to rebound to the middle 60s over the lower plains as of 1 pm. Still, upper 30s are likely in the higher Plains near Colorado with more mild 40s elsewhere. Increasing cloud cover should hold high as much as 10 to 15 degrees cooler on Monday.
1026 AM CDT Sun Mar 29 2020 Temperatures have warmed a bit more than initially expected along the coast and have stayed cooler across the western counties. While it is only a minor change, within a few degrees, we decided to update the high temperatures for this afternoon to reflect these trends. A warm front will move in from the south today with MVFR/IFR ceilings returning to the region by the evening hours. This boundary is expected to retreat northward as a warm front through the period with rain chances gradually increasing across the region. Temperatures will continue to run above normal, with highs in the low to mid 80s today and tomorrow, and tonight's lows in the mid 60s to near 70.
Expect lows to drop only into the low to mid 50s areawide.
1114 AM EDT Sun Mar 29 2020 In the wake of cold front, it will windy today.
118 PM EDT Sun Mar 29 2020 [Through 18Z Monday] Scattered to broken mid level clouds are moving southeast along a cold front.
252 PM EDT Sun Mar 29 2020 Synopsis/Discussion/Marine/Hydro - Wind will decrease tonight - Warming trend through the week -- Wind will decrease tonight -- A deep upper low over eastern Wisconsin will move northeast across Ontario tonight.
Mostly clear skies are expected overnight as the upper ridge crosses the area. On Monday, the southern stream upper trough will move eastward over the central plains. A relatively warm and moist airmass will move northward ahead of this trough, bringing a chance of showers, mainly during the late afternoon hours.
As the low moves towards the southeastern U. As the low moves further towards the southeastern U. Currently, this upper ridge does not develop as a strong upper low drops into the NW/NC Rockies and slowly moves eastward thru the northern Plains region into the first half of the upcoming weekend.
As an approaching ridge builds into the area from the west, winds will shift NE/E off Lake Michigan late in the afternoon into Monday night.
312 PM CDT Sun Mar 29 2020 High pressure will be in place over the majority of the region tonight, keeping conditions dry under mostly clear skies. The high gets pushed east on Monday as low pressure approaches from the west. May see a few light rain showers late Monday afternoon and Monday night ahead of the low, but with little in the way of upper support, do not expect the precipitation to be widespread, with little in the way of rainfall accumulations.
1223 PM EDT Sun Mar 29 2020 Strong southwest winds will continue to gust up to 50 mph this afternoon into early this evening as deep low pressure tracks into the Great Lakes region. As a cold front sweeps across the region this morning, tight surface pressure gradients, combined with strong southwest to west winds aloft, will create very windy conditions. Widely scattered showers could also materialize by afternoon, especially across northern portions of the forecast area where there will be better lift associated with the upper low moving through Michigan. Showers and winds will gradually diminish overnight as the low progresses eastward, away from the area. High pressure moving in behind the low will favor mostly dry conditions on Monday, but there could be a few lingering showers.
An upper level trough will move east across the Great Basin through tonight. The weak, split upper trough moving into the western Great Basin this morning will move into and then slowly east across Utah tonight. Light precip has already developed well ahead of this trough across southwest Utah in an area of ample moisture, low-level warm advection, and terrain upglide. Precipitation will expand north and east throughout the afternoon as the upper trough approaches, then peak overnight as this trough crosses the state. The bulk of the rain/snow will concentrate across southern and central Utah in the area of best thermal/dynamic support for lift with the trough. A broad upper trough setting up across western Canada/Pacific Northwest/northern Rockies early in the week will bring some rain/snow to northern Utah throughout the week.
However, the bulk of the precipitation continues to fall along the South Shore as northerly winds will support some uplift over northern Douglas and Bayfield counties due to a gravity wave that the high-resolution models are progging. Eventually, dry air and high pressure will settle into the region late tonight. Monday is looking dry and mostly sunny as high pressure takes control. Warmer temperatures are also expected, with highs in the middle 40s along Lake Superior, thanks to easterly flow, to the lower 50s farther inland.
106 PM CDT Sun Mar 29 2020 (This afternoon through Monday) Slight changes to temperatures and dewpoints today and tonight, a few degrees cooler most locations.
207 PM EDT Sun Mar 29 2020 Gusty winds and isolated thunderstorms today with the approach and passage of a cold front. Added a wind advisory to the afternoon package given ongoing gusts Strong winds will persist the afternoon ahead and behind a crossing cold front currently over central Ohio. CAPE values are expected below 500 and 1000j/kg on average in a relatively narrow band just ahead of the cold front. Increasing clouds and the risk for a passing shower on Monday with upper troughing, the return of cold advection, and northwest flow.
319 PM EDT Sun Mar 29 2020 It's a sunny, windy afternoon in the wake of last night's cold front. Low pressure is now centered over the Great Lakes with high pressure over Oklahoma. Ridging aloft and at the sfc will build into the region for Monday. Monday looks very pleasant with sunshine and highs in the low to mid 60s.
Low pressure over the Upper Midwest will move across the Great Lakes today. High pressure returns for tonight and Monday, with mostly clear skies and cooler temperatures.
210 PM EDT Sun Mar 29 2020 A strong cold front will head to the coast by tonight.
Warm and dry conditions are expected to continue through tomorrow as mid level ridging remains situated over the area. Highs will continue to range from the mid 80s along the East Coast to the low/mid 90s across the interior. A cold front will stall out well to the north across the Florida Panhandle tomorrow before beginning to move northward as a warm front Monday night.
A fairly strong 700mb warm front should lift north through the central high Plains tonight and precipitable water rises to over 1/2 inch Monday morning. The RAP model shows a 500mb wind speed max aiding the warm front and this will likely be part of the forcing for rainfall.
849 PM MDT Sun Mar 29 2020 A quiet and calm night across the High Plains and adjacent Mountain Terrain this evening. Increasing clouds overhead are the early signal that an incoming upper level low is approaching the region. This low doesn't garner much strength nor instability, but there will be just enough to spur an isolated thunderstorm or two across the HIgh Plains tomorrow afternoon, mainly across the western Nebraska Panhandle; also signaled by the Storm Prediction Center's forecast. Afternoon GOES-R satellite composite showed a upper ridge axis from the MT/ND border south over the eastern WY/CO plains. Mid and upper level moisture was spreading from the Great Basin across UT, CO and WY ahead of the a Pacific trough. Clouds will continue to increase this afternoon and evening as the trough pushes east across the Four Corners.
It's a sunny, windy afternoon in the wake of last night's cold front. Low pressure is now centered over the Great Lakes with high pressure over Oklahoma. Ridging aloft and at the sfc will build into the region for Monday. Monday looks very pleasant with sunshine and highs in the low to mid 60s.
High pressure will be in place over the majority of the region tonight, keeping conditions dry under mostly clear skies. The high gets pushed east on Monday as low pressure approaches from the west. May see a few light rain showers late Monday afternoon and Monday night ahead of the low, but with little in the way of upper support, do not expect the precipitation to be widespread, with little in the way of rainfall accumulations.
MVFR to IFR conditions develop this evening and overnight for sites that are not there yet as isentropic lift and eventually a warm front move through the area. A warm front continues to push north through the evening, with onshore flow and some scattered showers moving through the area.
The trough axis remains well to the west, indicating that it will take until tomorrow afternoon for the main trough to pass east of the state. An upper level trough will exit the region Mon night, with any leftover precip, ending in the early evening hours. Meanwhile, will see warmer temps, as downslope westerly flow occurs, with readings in the 60's over nern CO. For Tue night into Wed, a broad upper level trough will extend from the nwrn US into the nrn Rockies, with west to southwest flow aloft, across the area. In addition, a cold front will move across nern CO as well. Highs will drop into the lower to mid 50s across the plains.
738 PM EDT Sun Mar 29 2020 A broad area of low pressure stretching from the Great lakes to New England will produce a mixed bag of precipitation across the area into Monday.
949 PM CDT Sun Mar 29 2020 947 PM CDT There will be some light showers on the back side of the departing upper low due to continued cyclonic flow. Otherwise were are still somewhat mixed in the low levels and have 3 mb/3 hr pressure rises, thus breezy conditions with gusts to 35 mph this evening will slowly taper this evening and overnight. As an approaching ridge builds into the area from the west, winds will shift NE/E off Lake Michigan late in the afternoon into Monday night.
A large area of high pressure will continue to dominate the weather pattern across South Florida for tonight and into Monday. Highs on Monday will range from the mid 80s across the east coast to the lower to mid 90s across the interior sections. Warm and dry conditions are expected to continue through tomorrow as mid level ridging remains situated over the area. Highs will continue to range from the mid 80s along the East Coast to the low/mid 90s across the interior. A cold front will stall out well to the north across the Florida Panhandle tomorrow before beginning to move northward as a warm front Monday night.
521 PM MDT Sun Mar 29 2020 Afternoon GOES-R satellite composite showed a upper ridge axis from the MT/ND border south over the eastern WY/CO plains. Mid and upper level moisture was spreading from the Great Basin across UT, CO and WY ahead of the a Pacific trough. Clouds will continue to increase this afternoon and evening as the trough pushes east across the Four Corners.
Mid/upper ridging remains over state with surface ridging extending westward across the Peninsula from the Atlantic.
/Tonight through Monday Night/ Confidence: High Powerful spring storm continues to churn clouds, winds and light precip over Wisconsin this afternoon with a secondary trough scraping the northeast areas of the state; resulting in stratus as well as enhanced gradient winds. Fortunately the low will continue to slowly drift east today with resultant mixing and winds dropping off through sunset. Monday looks like a fine day, as models continue to show the ridge axis moving to dead center Iowa by 18z.
Chattanooga Airport, TN 52 72 50 55 43 / 0 0 60 100 30 Knoxville McGhee Tyson Airport, TN 50 69 50 53 42 / 0 0 40 100 60 Oak Ridge, TN 50 69 49 53 42 / 0 0 40 100 50 Tri Cities Airport, TN 44 67 44 52 41 / 0 0 10 90 80.
755 PM EDT Sun Mar 29 2020 A cold front moving east of the area overnight will bring clearing skies to central Pennsylvania.
Meanwhile, south and west southwest flow in the low and mid-levels of the atmosphere will result in increasing moisture aloft beginning tonight and continuing into Monday. At the same time, a warm front will begin lifting north into at least far southern portions of the CWA come late Monday afternoon. /19/ As we go into Monday night, strong moisture transport should bring fairly widespread showers along/north of the warm front with the best low level theta-e advection and frontogenesis still expected to focus over the northern ArkLaMiss Delta and into north central MS.
An upper-level ridge strengthening across the northern Plains has allowed for clear skies today, and these will continue during the overnight hours.
719 PM CDT Sun Mar 29 2020 (This afternoon through Monday) Slight changes to temperatures and dewpoints today and tonight, a few degrees cooler most locations.
911 PM EDT Sun Mar 29 2020 A broad area of low pressure stretching from the Great lakes to New England will produce a mixed bag of precipitation across the area into Monday.
Parts of the San Joaquin Valley and Kern County Desert are forecast to climb into the lower 80s by the upcoming weekend. As the upper low tracks overhead, we could even see a thunderstorm by later this afternoon. This activity is progged to end this evening as the upper trough continues to move east away from the area. Behind the exiting trough we will see some gusty winds over the ridges and through and below mountain passes through the evening hours.
An upper level trough will move east across Utah with precipitation focused across southern and central Utah overnight.
High pressure will build across the area behind a cold front currently moving southeast across middle Georgia this afternoon.
620 PM CDT Sun Mar 29 2020 Strong westerly winds will continue through early this evening before diminishing overnight as high pressure builds into the region. High pressure will build into the Midwest on Monday, leading to plenty of sunshine and light winds with highs in the upper 50s and lower 60s.
749 PM EDT Sun Mar 29 2020 Aviation - Wind will decrease tonight - Warming trend through the week -- Wind will decrease tonight -- A deep upper low over eastern Wisconsin will move northeast across Ontario tonight.
Highs will reach the mid 80s near the coast to the lower 90s across the interior. On Tue, increasing surface and transport winds from the Southwest ahead of an approaching cold front will exacerbate fire weather sensitivity, with min RH values below 45 percent even at the coast.
Much quieter weather across the Tennessee Valley this afternoon, with only scattered to broken bands of high cirrus passing across the Deep South in wake of a weak cold front. Expect high clouds to increase overnight ahead of a developing low pressure system across the Coastal Plains of Texas. Thus, expect a dry and cooler night with benign weather conditions.
indicate that an upper trough will move across southern Colorado into Monday, bringing unsettled conditions to the CWA. Elsewhere, the highest potential for accumulating generally light precipitation during the short-term should be realized over eastern locations Monday.
814 PM EDT Sun Mar 29 2020 Low pressure in the northern Great Lakes will shift eastward tonight into Monday. Weak high pressure is expected to briefly build into area from the north Monday night.
For Monday, the high pressure ridge begins to break down. Clouds will be on the increase during the afternoon as an upper low and trough move onto the Pacific Northwest coast. A cold front will approach the western half of the forecast area Monday night resulting in a chance for showers across our far western areas by evening. Compressional warming ahead of the front will allow for afternoon highs to warm a few degrees from today with temperatures in the lower 60s for most areas.
The increasing cloud cover should aid in low temperatures being warmer than last night along and south of Interstate 40.
847 PM EDT Sun Mar 29 2020 Cold front passage this evening will herald more seasonable temperature for the upcoming week. Some light showers are possible later tonight for areas north of PIT as cold advection ensues under upper troughing. Increasing clouds and the risk for a passing shower on Monday with upper troughing and cold advection on northwest flow.
739 PM EDT Sun Mar 29 2020 Windy conditions will diminish this evening as low pressure slowly moves east across the Great Lakes. The low will then move toward southern New England on Monday. Weak high pressure is expected to briefly build into area from the north Monday night.
The upper low now churning just south of Green Bay, Wi will move across nrn Lower Mi and nrn Lake Huron this afternoon and evening. The region of low level moisture wrapping around this system and ascent tied to mid level short wave impulses rotating along the base of the upper low will sustain scattered to numerous rain showers well into tonight. A peak of sun earlier today pushed temps into the low 60s over much of the area. This steepened the low level lapse rates enough to support a few intervals of strong winds along the lead edge of surface cold push. The low level moistening and rain showers is also reducing the degree of boundary layer mixing upstream. The upper low will depart to the east of the region on Monday.
653 PM EDT Sun Mar 29 2020 Southwest winds will continue to slowly diminish overnight as deep low pressure over Lake Huron weakens and shifts into southeast Ontario Monday.
337 AM CDT Mon Mar 30 2020 H5 analysis from earlier tonight had a closed low over northern portions of the UP of Michigan. A trough extended south of this feature into the Ohio Valley. High pressure was anchored over the Bahamas and the Florida peninsula. West of the low, zonal flow extended from eastern Colorado across Kansas, into Missouri. With this in mind, delayed the onset of higher pops until early this afternoon when the H5 trough begins to emerge over eastern Colorado. Warmer temps are expected in the northeast and far northern areas due to the later onset of cloud cover. Highs will range from the lower 60s in the northeast, to around 70 in the southwest, and were trended higher parallel to the trend in statistical guidance.
An upper level low over the Upper Great Lakes will produce lots of clouds and isolated to scattered light showers over much of the area Monday. Cooler, but rather normal temperatures are expected for the rest of the week.
1248 AM EDT Mon Mar 30 2020 Brisk west winds will continue today as a deep low pressure area drifts into Quebec province and slowly weakens. Lows tonight will dip into the 20s where clouds are able to clear; otherwise, lows tonight should be in the lower 30s. Fairly quiet weather is forecast for the start of the work week as the upper low continues a slow eastward progression into the eastern Great Lakes. A closed low from the Southern Plains will start to eject eastwards on Tuesday, but upper troughing over the western Great Lakes will help to block the northern progression of the Southern Plains low.
This will also bring a warm front northward towards the I-20 corridor this evening and into the overnight hours. However, it is still very uncertain how much surface-based convection will develop in the warm sector south of the warm front. While convection north of the warm front will be largely elevated, any storms immediately along the warm front could also be severe. Thus, any surface-based convection that develops along the warm front will be in an environment where low-level shear will be maximized and more than enough to support a threat for isolated tornadoes.
A deepening area of low pressure off the Pacific NW coast will back the flow aloft to the southwest today. Winds in the western foothills (Livingston and Nye) will gust to 50+ mph this afternoon through late tonight ahead of a cold front. Total snow accumulations for the western mountains Tuesday morning through Tuesday night looks to range from 4 to 8 inches, with 1 to 2 inches in the lower elevations west of Rosebud county.
238 AM EDT Mon Mar 30 2020 Low pressure will track south of the area today.
200 AM CDT Mon Mar 30 2020 A quiet, drier start to the new week as high pressure builds in from the west. Upper level ridge will start to give way to the influence of a west coast trough, with the first bit of energy ejecting out of this feature, shifting across the Upper Mississippi River valley Wed.
High pressure will build through midweek allowing temperatures to climb several degrees each day.
228 AM MDT Mon Mar 30 2020 08z surface analysis had low over southwest SK with a trough into central CO. Modest return flow over the CWA as weak upper ridge shifts east.