Aikyam-Lab/Synoptic-Bench huggingface dataset:
1154 PM CDT Wed Apr 29 2020 Deep closed low across the western Great Lakes responsible for the cool, cloudy day today along with lingering light rain will slowly drift eastward tonight. Highs on Thursday will be seasonably cool in the 60s, but given the sunshine will feel quite a bit warmer than today. Favorable conditions for radiational cooling is expected to yield another chilly night, with forecast low temperatures ranging from the low to mid 40s.
Squall line ahead of a cold front now pushing across TPA/PIE with gusty winds and MVFR/LCL IFR conditions. The actual cold front will move southeast across the region during Thursday shifting the south to southwest winds to northwesterly with drier air beginning to overspread the area. High pressure builds in behind the boundary and will remain across the waters, with the center shifting east to over the Atlantic Ocean through the rest of the period with winds 15 knots or less and seas 3 feet or less.
347 AM CDT Thu Apr 30 2020 As the ridge continues to build over the area, subsidence will keep cloud coverage to a minimum throughout the day. On the leading edge of the WAA, some of the higher resolution guidance is suggesting we could see some scattered rain showers into Friday morning. Light rain showers remain possible into late Friday morning, shifting the focus towards the Buffalo Ridge in SW MN.
With another weak trough progged to rotate around the back of the departing upper low, have maintained slight to low chances POPs through much of Thursday in the Evansville Tri-State, West KY Coalfields, and southern KY Pennyrile. This trough will lead to a stark gradient in sky coverage tonight through Thursday, with mostly clear skies in the Ozark Foothills to mostly cloudy in the Evansville Tri-State and KY Pennyrile. After, 0z Friday, dry conditions are expected areawide through Friday night as upper- level ridging takes hold. Temperatures will not cool much behind the cold front tomorrow, with highs generally in the low to middle 60s. These 10-20F above normal readings will be closer to the low end of that threshold here, as that airmass modifies, but it will still mean some 80F readings popping up for weekend highs.
/issued 402 PM CDT Wed Apr 29 2020/ Latest surface analysis showed a 996mb over Lower Michigan with the cold front extending northern Mississippi to southwest Louisiana and pre-frontal trough axis from northern Alabama to Mississippi coastal waters. Upper level analysis showed a trough axis rotating through mid and lower Mississippi valley this evening. Upper level trough will shift east.
350 AM EDT Thu Apr 30 2020 Strong low pressure system continues to progress through the area today.
As the upper level low slowly shifts eastward, so will the lift causing the rain over eastern Wisconsin. High pressure will build into the region for Friday resulting in light winds and clear skies. The Lakeshore Flood Advisory will therefore continue until the early afternoon as the higher waves shift towards the open waters.
Otherwise, temperatures will begin to moderate with highs in the low 60s to low 70s.
Though we are looking forward to being rain free for a few days, temperatures today will be on the cooler side (low 70s) for much of the CWA as we remain on the back end of an upper level trough. Skies will be clear today and will stay clear through tonight with expected low temperatures in the lower 50s area-wide.
Mainly quiet weather conditions for the short term forecast under the influence of upper level ridging stretching across the Rockies and high plains. Winds will turn more southerly by mid morning as a leeside trough develops and deepens over eastern Colorado due to diurnal trends. High temperatures will be much warmer due to the return of southerly flow seeing mainly 80s across the CWA and pushing near 90 near the Oklahoma state line towards Elkhart seeing more of the downsloping influence.
1103 PM PDT Wed Apr 29 2020 Thursday will be cooler than today and breezy with mainly mountain showers. Look for an unsettled and cooler start to the work week.
1022 PM MDT Wed Apr 29 2020 Next arriving upstream trough will be forcing the ridge eastward leading to a hot and breezy forecast. Friday morning will see the upper level ridge weaken and slide east towards the Northern Plains with flow aloft becoming southwesterly over eastern Utah and western Colorado.
/Issued 1157 PM CDT Wed Apr 29 2020/ /Today and Tonight/ High pressure and large scale subsidence will continue through the day as the area resides on the backside of a deep and narrow upper trough over the Eastern CONUS. The winds will increase and become southerly late this afternoon into the evening hours as the upstream ridge flattens and leeside cyclogenesis ensues.
1008 PM PDT Wed Apr 29 2020 Thursday will be cooler than today and breezy with mainly mountain showers. Look for an unsettled and cooler start to the work week.
SHORT TERM (Now through Friday): 500mb ridge axis over New Mexico shifts over the state Friday.
356 AM CDT Thu Apr 30 2020 Dry high pressure has settled into the area and will remain in place for quite a while. Ridging over Texas that earlier in the week looked like it would build eastward into the Gulf of Mexico now looks like it will remain over Texas and may even build westward.
A quiet period expected in the short term as high pressure builds over the region in the mid-levels. Airmass now in place is drier, but not much cooler than previous air. and a few degrees warmer tomorrow. Will see another night of cooler low temperatures though before the moisture comes back in.
For tonight, temperatures will cool into the lower 40s in the eastern Ozarks, with lower 50s in the Osage Plains. Southerly winds will be on the increase over southeast Kansas and western Missouri, allowing for warmer temperatures to the west.
/EC/ Prior discussion below: Tonight and Thursday: After a large line of rain and storms moved through early this morning, the parent cold front is finally moving across the area. Showers will exit the forecast area by sunset with dry conditions into Thursday as ridging builds in across the Plains states. Daytime highs will be slightly below normal Thursday as we remain on the back end of the upper trough passing across the region. /DL/ Dry conditions will continue Thursday night through the weekend as high pressure remains in control across the region. As the high continues to move east of the area, dry conditions will continue through the weekend with continued warming temperatures.
Surface analysis this evening places an area of low pressure near Grand Rapids, MI with a cold front trailing back through Middle Tennessee, North Alabama, and Central Mississippi. /issued 305 PM CDT Wed Apr 29 2020/ Current surface analysis shows a cold front finally moving out of the area with gusty winds behind it. Lows tonight will generally be in the low 50s. High pressure will move into the area tomorrow and dry weather should persist through the end of the weekend. High temperatures will remain in the lower 70s through tomorrow then have a warming trend through the weekend. By Friday temperatures will be in the mid 70s and by the weekend temperatures will be in the lower 80s.
Low pressure remains centered over SW Lower Michigan early this morning. Deformation axis and resulting precip will shift eastward back into our CWA today as the low center gradually progresses eastward.
High pressure is currently centered over the central Plains. As the high moves slowly east today, clouds should begin to exit the region leaving mostly sunny skies for the region. Temperatures will be cooler than yesterday with highs in the mid 60s to lower 70s. Tonight will see more dry weather as high pressure axis moves toward the Mississippi Valley. By Friday, winds will become more southerly allowing warmer air to move into the region. Temperatures will be warmer on Friday with highs in the mid to upper 70s.
305 AM CDT Thu Apr 30 2020 Upper-level ridging will spread east over the next two to three days while also deamplifying as it does. This upper ridge will help keep the weather fairly quiet to end the week and start the weekend.
An anomalous upper low will slowly continue eastward through the eastern third of the country today. Unseasonably cool temperatures aloft associated with the aforementioned upper low will mix to the surface today resulting in highs in the low 70s across AL/GA and in the mid 70s across north Florida. Overnight, clear skies and calming winds will allow temperatures to fall into the lower 50s, which is a few degrees below normal.
Dry conditions will continue across the Northland through Thursday night, thanks to an area of high pressure that will pass through the region.
A large closed low pressure system will slowly drift eastward across the region through the end of the work week. There will be chances for showers, particularly tonight into Thursday, and plenty of cloud cover, though both will gradually decrease by Thursday night into Friday as the low shifts far enough eastward.
High pressure will build across the Upper Midwest tonight and Thursday. Temperatures on Thursday will be much warmer with highs reaching the 70s. Temperatures should warm through the 70s over the southwest/post warm front.
613 AM CDT Thu Apr 30 2020 A few rain showers will linger over east central Illinois today as low pressure moves slowly eastward away from the area, while clearing skies gradually extend eastward into central Illinois.
631 AM EDT Thu Apr 30 2020 Light showers and abundant cloud cover will linger through today and Friday as a slow-moving low pressure system crosses the region.
332 AM PDT Thu Apr 30 2020 A trough of low pressure over the eastern Pacific will move toward and inland across the western states through the weekend.
Some high clouds through the period, but little in the low to mid levels. A quiet period expected in the short term as high pressure builds over the region in the mid-levels. Airmass now in place is drier, but not much cooler than previous air. and a few degrees warmer tomorrow. Will see another night of cooler low temperatures though before the moisture comes back in.
Aside from critical fire weather conditions in our western counties today (see fire weather section), the weather will be pretty quiet/dry with warmer temperatures and less wind than the past couple of days. An upper ridge axis will build onto the Central Plains. Have not deviated much from model ensembles for temps, but of interest is that MOS guidance has trended cooler for Friday highs (roughly five degrees cooler than current forecast) as the upper ridge breaks down.
548 AM CDT Thu Apr 30 2020 Upper-level ridging will spread east over the next two to three days while also deamplifying as it does. This upper ridge will help keep the weather fairly quiet to end the week and start the weekend.
439 AM CDT Thu Apr 30 2020 Early morning upper air analysis shows upper level ridging over the Rocky Mountain states, placing North Dakota under anticyclonic flow. At the surface, southerly return flow has commenced across western North Dakota as high pressure sits over eastern South Dakota. The upper ridge axis will shift over the Northern Plains today. Expect increasing mid to high clouds through the day as a couple disturbances begin to round the top of the ridge. The attendant cold front will likely be crossing central North Dakota during the afternoon. Temperatures ahead of the cold front should rise into the mid 70s, with slightly cooler highs to the west. It will also become quite breezy behind the cold front, with northwest winds sustained around 20 to 25 mph.
Front has pushed through the area this morning, with a much drier and somewhat cooler airmass spilling in. Temperatures are on track to reach the lower to mid 70s this afternoon for most areas.
608 AM CDT Thu Apr 30 2020 (Today and tonight) Today will feature relatively tranquil weather as upper ridging begins to build into the area. Warming mid level temperatures will lead to highs about 5 to 10 degrees warmer today compared to yesterday.
A large, stacked low pressure is centered along the IN/MI border early this morning. The rain with the storm system's cold front is departed well to our east, and although there are still some showers in our area, we are in a relative lull. The upper level low will track southeast through OH and WV, and should be off the Mid Atlantic coast by late Friday. Deep moisture under the upper low will pass through our area late today and tonight, with another increase in showers. As the upper low departs, surface ridging will build in from the west, and geopotential heights aloft will increase on Friday.
423 AM MDT Thu Apr 30 2020 Upper ridging across the central to northern Rockies has shifted eastward into the northern Great Plains. A weak trough is moving into the Pacific Northwest, with a secondary trough crossing the northern Rockies. Low level thermal ridge near the upper ridge axis is pushing into the CWA at this time. Temps are expected to reach the 80s across many locations, but upper level clouds moving in from the west could end up keeping temps a few degrees cooler than forecast. Temperatures on Friday will be cooler, with highs in the upper 60s to upper 70s.
318 AM MDT Thu Apr 30 2020 Our ridge today will be broken down and pushed east as an upper trough moves into the Pacific NW. We will see a few different pieces of energy aloft ejected out ahead of the main trough affecting our region. Another additional piece of energy, and perhaps stronger, will move into our western zones later in the day as the upper trough edges into the inter- mountain Rockies.
Dry high pressure will maintain VFR with clear skies.
A cold front will pass through the region today, across SE Oregon mid-morning and entering SW Idaho around noon. The highest instability will set up over southern Idaho, in which storms will form over higher elevations and propagate eastward.
746 AM EDT Thu Apr 30 2020 Light showers and abundant cloud cover will linger through today and Friday as a slow-moving low pressure system crosses the region.
221 PM CDT Sun Oct 22 2017 Early this afternoon, surface analysis depicted a cold front over far eastern Wisconsin southwestward into the Mid-Mississippi Valley. By early this evening, generally clear skies are expected as high pressure briefly noses into the area. Later tonight, mid/high clouds will begin to increase from the northwest ahead of an upper trough and associated cold front approaching from the northwest. Additional isolated to scattered diurnally driven showers may swing southeastward beneath the cold upper trough by later in the afternoon. The upper level flow will continue to transition to northwest flow as the mean long wave ridge builds over the western conus. The short wave trough that will drop across the Upper Midwest Monday will help form a cut off low over the Great Lakes Monday night.
Convection should wane with the loss of heating over all but the waters, and overnight lows in the low to mid 70s are expected. The main weather feature continues to be an approaching cold front currently draped across the Arklatex region, with swath of prefrontal convection extending eastward Mississippi and Alabama. A few strong to severe storms are possible with damaging winds the most likely hazard as freezing levels remain high and not much CAPE in the hail growth zone.
Thus, cooler and drier air will filter across the region this evening, ending the precipitation.
Also, the strong boundary jet and favorable thermal profile for damaging mountain wave high winds over the higher terrain and adjacent foothills. Chattanooga Airport, TN 63 70 48 63 / 90 100 20 10 Knoxville McGhee Tyson Airport, TN 59 69 48 61 / 60 90 40 20 Oak Ridge, TN 61 69 47 61 / 60 100 40 20 Tri Cities Airport, TN 57 71 46 62 / 30 90 70 20 TN.
342 PM CDT Sun Oct 22 2017 Tonight-Monday: Cold front will move through central KS before sunrise and across the entire forecast area by midday.
Cooler air lagging well westward of windshift with fropa movg across area. A reinforcing cold front Monday night will whip up the nw winds on Tue, with a LWA likely reqrd. An upper low movg across the upper midwest will drop a trough in our direction and will give us a shot of rain early next wknd. High pressure building across the region behind a cold front will bring northwest winds around 10 knots.
619 PM EDT Sun Oct 22 2017 A cold front will return rain to the area Monday and Monday night. Low pressure will maintain shower chances and cool temperatures through mid week. Clouds should continue to increase tonight ahead of approaching low pressure. The low is progged to track through the OH Valley to the lower Great Lakes Monday, dragging a cold front through the region. A tightening pressure gradient should also result in gusty SE wind especially across the Laurel Highlands and the higher terrain of WV/MD Monday. While low pressure shifts north over Lake Huron Monday night, its cold front should race to the east.
241 PM CDT Sun Oct 22 2017 Have gone a little on the low side of guidance for tonight's lows. Have gone with the stronger winds and cooler temperatures from the MET guidance as the Panhandles will be placed in the right front quad of the upper jet. Plus the upper level disturbance intensifies into a closed low, so this will help to bring colder air southward into the area. Speaking of colder air, another strong short wave trough is expected to swing southeastward out of Canada and into the central U.
With lee troffing overnight, expect min temperatures to stay up in the lower 40s along the lower eastern slopes with mainly 30s elsewhere and 20s for the cooler trapping valleys and higher peaks. Passing trof well to the north will send a dry cold front through the southeast plains on Monday which will backdoor into the I-25 corridor during the afternoon. Meanwhile western mountains and valleys will see slightly warmer temperatures with breezy northwest winds mixing down along the valley edges during the afternoon.
A cold front will sweep across Central Indiana tonight.
331 PM EDT Sun Oct 22 2017 A large area of high pressure centered off the New Jersey coast will bring spectacular Autumn conditions today through much of Monday, to enjoy the near peak color of the fall foliage. A high-amplitude and deepening, cold upper trough will become located across the eastern U.
255 PM MDT Sun Oct 22 2017 Current surface analysis shows low pressure over southeast SK, with lee-side trough extending southeast across eastern MT and into the Black Hills area. Canadian cold front extends across central and western MT. Cooler weather will return for the first part of the week as the cold front slides through the forecast area tonight. A tight pressure gradient will develop between the passing front and high pressure over the Pacific NW. Highs will be in the 50s and lower 60s across much of the area, with 40s over the higher Black Hills.
High pressure building across the region behind a cold front will bring northwest winds around 10 knots.
258 PM CDT Sun Oct 22 2017 /Through Tonight/ Drier and cooler air is filtering into the region following last night's cold frontal passage. -Stalley /Monday through Sunday/ Most of the upcoming week will be dominated by northerly flow aloft featuring a couple of cold fronts and generally quiet weather. An amplifying ridge over the western U. This will allow a reinforcing cold front to move through North Texas by Monday evening.
148 PM PDT Sun Oct 22 2017 High pressure continues to build across the region. Much warmer conditions are expected for the rest of this week as temperatures increase well above seasonal averages. A ridge of high pressure is firmly in place over the region and will intensify over the next few days.
A large trough of low pressure aloft will be moving across the eastern quarter of the CONUS tonight through mid week. A surface cold front associated with the upper level system will begin moving across the area on Monday.
Winds today have already reached the High Wind criteria over parts of Phillips county. With continued increasing winds across eastern Montana along with steep lapse rates and strong wind gusts anticipated from the showers that continue to move across northeast Montana, decided to leave the High Wind Warning that is in effect until 8 PM this evening as is.
High pressure will push eastward into the northwest Atlantic through Monday.
148 PM EDT Sun Oct 22 2017 Dry and warm weather will continue today as high pressure moves off to the east.
1223 PM CDT Sun Oct 22 2017 An elongated ridge of high pressure has settled into the forecast area in the wake of the cold front that is moving into the Mississippi Valley region this morning.
318 PM EDT Sun Oct 22 2017 The dry and warm weather will continue into Monday, under a large area of high pressure. A cold front will approach the area Monday night bringing rain, gusty winds, and cooler conditions for much of the rest of the week. ridge finally breaks down, a complex system over the midwest will push a strong cold front toward the area. The system represents the opening event in an developing pattern change that will eventually result in a large trough over the eastern part of the country. It will be a messy transition as the ridge is slow to give up, and multiple waves rotate around the trough as it settles in.
331 PM EDT Sun Oct 22 2017 CORRECTED WATCHES AND WARNINGS SECTION Currently - A large high pressure system extending along the Atlantic coast continues to bring moderate to fresh east to southeast breezes across the Florida Keys. Forecast - Winds will trend downwards over the next day or two as the previously mentioned area of high pressure lifts out to the northeast.
Ridge of high pressure will begin to build into the region pushing the system out of the area and then remain over the ares through the first of the week.
SHORT TERM (Tonight through Monday Night): The cold front is just now arriving into the BKS/HBV areas, with modest northeasterly breezes in its wake. Monday will be completely clear, with high pressure in control.
455 PM CDT Sun Oct 22 2017 Upper low continues slowly migrating across northern AR this evening.
109 PM EDT Sun Oct 22 2017 Expect a continuation of above normal temperatures and dry weather today and Monday as high pressure remains over the area.
1245 PM CDT Sun Oct 22 2017 The cold front has moved through the forecast area, but the southwest winds behind the front will give us another warmer than normal day. Hence today will be a partly cloudy day with most areas reaching the low to mid 60s.
Water vapor loops indicate amplification of a mid/upper-level trough ongoing over the southern Canadian Prairies and north-central CONUS, within the exit region of an extensive polar stream. Dry/continental trajectories will be reinforced across the region, in association with strong surface ridging overtaking the western states owing to subsidence beneath the aforementioned speed maximum -- upstream from the trough. The influx of deep dry air will occur following the passage of a dry cold front early in the day on Monday, with strengthening northwest winds through the day. However, diurnal RH reductions will be muted to some extent by the background cold advection, as a warm-thermal ridge moves south of the area well before peak heating.
210 PM MST Sun Oct 22 2017 The brief cool down will end today as a strong area of high pressure begins to build over the Western U.
/Issued 1026 AM EDT Sun Oct 22 2017/ Cold front is currently crossing the Mississippi River. High pressure is still anchored across the Middle Atlantic and should begin to push offshore later today. High pressure centered over the mid atlantic states finally looses its grip on the eastern seaboard as a developing frontal system moves east out of the MS river valley today.
300 PM MDT Sun Oct 22 2017 West to southwest winds around 10 mph this evening will veer to the northwest and north gusting to perhaps 20 mph as a cold front moves through. Low temperatures tonight will be not as cold as this morning with readings in the low to mid 30s in far eastern Colorado, upper 30s to mid 40s elsewhere. After a cold front pushes through western Kansas early Monday, another surge of drier air will move into the high plains.