Aikyam-Lab/Synoptic-Bench huggingface dataset:
1057 PM CST Wed Nov 24 2021 (This evening through Thursday) A cold front will push into the area late tonight, and may result in some scattered showers across our southeast counties. A 1035mb high pressure center will push a cooler Canadian airmass into west Texas for Turkey Day, which should result in high temperatures in the mid to upper 50s. The aforementioned breezy conditions will continue through at least early afternoon, which will make the air feel a bit cooler than the actual temperature.
100 AM EST Thu Nov 25 2021 High pressure over the Southeast states early this morning will shift southeast and off the Florida coast later today. A cold front will approach from the west this evening then cross central NC tonight.
Highs will be a bit cooler than today, with most of the area in the low to mid 50s.
A cold front will slide into the area tomorrow, but not expected to move in until later into the evening. /issued 310 PM CST Wed Nov 24 2021/ A cold front continues to move through the Great Plains and is expected to begin impacting the CWA on Thursday evening. The moisture is still primarily in the low levels, so despite higher PWAT values, the mid- levels will remain fairly dry up until the actual front moves through.
A cold front was moving through the area early this morning. The upper level trough will not swing through until late in the day, therefore 850mb cold air advection is likely through the day. Steady temperatures in the 30s are likely through the day, with some areas recovering to the low 40s by afternoon, mainly across the Joplin-Branson-West Plains areas.
(Today and tonight) Gusty northerly winds will continue across the area this morning keeping temperatures in the low 40s until noon today.
150 AM EST Thu Nov 25 2021 High pressure over the Southeast states early this morning will shift southeast and off the Florida coast later today. A cold front will approach from the west this evening then cross central NC tonight.
1103 PM CST Wed Nov 24 2021 A cold front completes its sweep across the region this evening with polar air streaming in overnight and setting the stage for a relatively chilly Thanksgiving day. As of 2pm, a well-advertised cold front was knocking on La Crosse's doorstep and should complete its passage through the Upper Mississippi River Valley by early this evening. Thus, have not deviated too far from the NBM deterministic wind speeds for tonight with a leaning towards the HRRR to capture the higher wind gusts. Low-level moisture wrapping around the lower tropospheric low may experience enough synoptic lift ahead of the H500-300 trough to generate light flurries during the overnight hours. With the thermal trough over the region during this timeframe, highs will struggle to reach the mid 20s west to low 30s east.
An upper level trough will drop to the southeast across the region this afternoon into tonight. Could see a few showers east of the higher elevations. Lows will be in the mid to upper teens over the plains (cooler in the valleys) and single digits to low teens over the higher elevations. Behind the previous system, an upper level ridge moves into the region overnight into Thursday.
Predominately light easterly winds are expected overnight which then become southerly 5 to 10 knots on Thursday as a cold front approaches from the north.
151 AM MST Thu Nov 25 2021 Overall, the Turkey Day forecast is quiet with not a whole lot to gobble about in the near term as ridging builds into the weekend. Ridging will continue to build into tomorrow, with afternoon southwest winds across the usual areas and a continuing warming trend.
1243 AM EST Thu Nov 25 2021 High pressure will prevail across the region through Thanksgiving Day.
826 PM MST Wed Nov 24 2021 An upper level ridge is currently nudging into the western U.
1025 PM MST Wed Nov 24 2021 As an upper trough axis moves through tonight skies will clear.
1043 PM CST Wed Nov 24 2021 Key Points: * Cold front moving through the region this afternoon will be the trigger for sprinkles/light rain late this afternoon/evening.
253 AM EST Thu Nov 25 2021 Rain can be expected today out ahead of an advancing cold front. The cold front will then pass east across the region this evening, ushering in much colder air.
1139 PM CST Wed Nov 24 2021 Light rain will develop tonight in the vicinity of a cold front moving across the area. Conditions will turn colder and blustery Thursday as a modified Canadian air mass filters into the region behind the departing cold front.
1114 PM CST Wed Nov 24 2021 After a warm start to the morning, temperatures continue to fall this afternoon as a cold front passes through the Upper Midwest. Temperatures will take on a warming trend towards more seasonable values through the weekend, as the lower heights and cold air aloft moves eastwards over the Great Lakes.
1129 PM CST Wed Nov 24 2021 VFR conditions will continue to start the 25/06Z TAF period, although MVFR cigs are expected to develop overnight across much of E TX/SE OK/SW AR, as sct convection continues to expand over these areas ahead of a cold front over NE and Srn OK into N TX. VFR conditions will eventually return beneath a cirrus shield undercutting the ejecting trough axis across E TX/SW AR during the afternoon, and over Deep E TX/N LA during the early to mid-evening hours.
1207 AM CST Thu Nov 25 2021 Low to mid level moisture continues to increase across the terminals as a cold front approaches from the west.
A cold front will move through the region this afternoon/evening which will prompt increased sky cover and lowering cigs amidst shra. CDG Chattanooga Airport, TN 61 33 48 30 56 / 50 70 10 0 0 Knoxville McGhee Tyson Airport, TN 59 34 45 27 53 / 50 70 10 0 0 Oak Ridge, TN 56 32 45 27 52 / 70 80 10 0 0 Tri Cities Airport, TN 56 32 41 23 48 / 40 80 10 0 0.
Temperatures have been trending about the same to slightly cooler than this time last night even with the warmer air aloft. With lows trending into the lower to mid 30's, another frost advisory has been hoisted for mostly the interior valleys of Humboldt, Southern Mendocino and Southern Lake Counties where a killing freeze has not yet occurred. It does not appear appropriate for this situation where most all reporting stations have been much warmer and barely making frost criteria of 36F. As of 4AM, several sites such as Kneeland were in the lower 60's.
528 AM CST Thu Nov 25 2021 (Today and tonight) Gusty northerly winds will continue across the area this morning keeping temperatures in the low 40s until noon today.
445 AM CST Thu Nov 25 2021 (Today) Early this morning, a cold front extended from near KFYV to KDUA with scattered to numerous showers and a few thunderstorms occurring in the vicinity of the front.
Have reissued the High Rip Current Risk through Tuesday as the Egmont Channel buoy continues to show wave heights around 5 feet from the southwest and these will be slow to subside as Sally remains over the north central gulf.
A stronger push of colder air tonight from the north/northeast will mean notably cooler conditions for Wednesday, and reduce the smoke a good deal, especially over the plains.
Current thinking is that upper level troughing will help steer Sally south of our region, but could still receive some precip from the outer edge of the tropical system.
Except for brief warmer temperatures on Wednesday, expect generally below normal temperatures through the week. High pressure will be situated northeast of the region today. With southwesterly flow, temperatures will be slightly warmer on Wednesday with high temperatures in the upper 70s to low 80s.
Tonight Through Wednesday Sfc ridging in place across the eastern US and the cyclonic flow around Sally will provide a continuous E-NErly flow across the state. H500 ridging across the southern and western US is divided by a weak trough/low across the Southern Plains.
211 AM CDT Tue Sep 15 2020 High pressure over the area bringing quiet weather and light winds early this morning. High pressure continuing to control our weather as hurricane Sally drifts in the northern Gulf of Mexico.
146 AM EDT Tue Sep 15 2020 High pressure provides cooler and drier air through Tuesday.
This morning, the upper pattern reveals a ridge of high pressure located from the Desert Southwest through the Central Plains. Lower pressure is located in northern Minnesota with a cold front trailing into the Dakotas. Highs could be a touch warmer than yesterday, topping out in the low 80s. Southerly winds will become breezy in north- central KS where the pressure gradients tightens up between the higher pressure to our east and lower pressure to our north. The cold front to our north will move through the CWA late in the day. No precip is expected, but a cooler and slightly drier airmass will move in for the last half of the week.
The drying trend today will mitigate rain chances across the area, with dry conditions expected, and temperatures slightly warmer than yesterday with highs in the middle 70s across higher terrain and lower to middle 80s elsewhere. A weak midlevel trough extending from the otherwise broad ridging across the southern CONUS extends from southern New Mexico northeastward across the region into Oklahoma, with a fetch of moisture embedded in southwesterly flow aloft on the eastern periphery of this feature.
322 AM CDT Tue Sep 15 2020 (Issued 322 AM CDT Tue Sep 15 2020) Today through Wednesday: High pressure will continue to shift eastward from the Great Lakes Region into the New England states. Meanwhile low pressure will quickly advance from the northern plains through Lake Superior and into Canada. This will quickly shift the winds to southwesterly, which will give southern Wisconsin some gusty winds from the resultant gradient and pull warmer air into the area. By Wednesday, a cold front will move through Wisconsin. As the front passes winds will shift to northwesterly and high pressure will begin to build back into the region from the northern plains.
As for today, we should more high clouds push north from the Hurricane, but for the most part, skies should stay mostly sunny today allowing temperatures to reach the upper 70s to lower 80s after a somewhat cooler start. Mostly clear skies should continue into tonight as the ridge holds position across the region. While some weak moisture transport is expected on Wednesday, this may only bring our dewpoints back into the lower 60s, and likely not enough for any diurnally driven convection. Thus, will go with more of partly to mostly sunny day with highs into the low to mid 80s. An unseasonably deep upper level low will swing across Hudson Bay through the middle of the week, spreading broad cyclonic flow from the Upper Midwest through the Great Lakes and Ohio Valley.
Mid to upper level ridging builds in across the central CONUS over the next couple days which will lead to a gradual warming trend. High temperatures will be back in the low 80s by Tuesday and toward mid 80s by Wednesday.
1127 PM CDT Mon Sep 14 2020 A forecast update is in place for warmer temperatures across ncntl Nebraska using the RAP model plus bias correction. A veering low level jet tonight should funnel warmer air into ncntl Nebraska. The new forecast is a few degrees warmer than the previous forecast in that region. The warm front that was responsible for some patchy fog this morning across far northern Nebraska has slowly moved northward into central South Dakota this afternoon. RH values will drop into the lower teens to near 10 percent behind this front in areas west of Highway 61. Beyond Wednesday, an upper level trough is progged to drop into the Great Lakes/Ontario and will leave the CWA in broad northwesterly flow aloft into the weekend.
148 AM EDT Tue Sep 15 2020 Aviation - Warming up the next few days - Significant cool down for the end of the week - Little potential for rain through the period - Warming up the next few days Strengthening south to southwesterly winds tonight into Tuesday will advect a warmer airmass into the CWA. The cold front has been trending a little faster.
1124 PM MDT Mon Sep 14 2020 An upper level ridge will remain over the area through Tue, with warm and mainly dry weather expected. Low temps tonight should be in the mid 40s to lower 50s over the plains, with 30s and lower 40s in the high valleys. On Tue, highs should be in the 80s to near 90 over the southeast plains, and mostly in the 70s in the high valleys. Upper level high pressure remains over the area Wed/Thu, with warm afternoons and cool nights continuing. On Fri, ridge slides east and upper flow becomes more swly across the state as upper trough moves onshore in the Pacific NW.
Temperatures will be a few degrees warmer than yesterday with highs in the lower to middle 70s. Temperatures continue a slow warming trend on Wednesday, though a cold front will pass through the region Wednesday night and bring a reinforcing shot of much cooler air.
We'll start the morning out in the lower 60s, and temperatures will rise into the lower 80s this afternoon.
1123 PM MDT Mon Sep 14 2020 High pressure will remain overhead through much of this work week. As was the case the last few days, enough moisture and instability remain present to result in some building cumulus over the high terrain with some isolated showers popping up over the San Juans and Elk mountains. Since the lower atmosphere is so dry, anticipate more virga than anything with occasional breezy conditions.
905 PM MDT Mon Sep 14 2020 The dry cold front has almost reached Billings. Regarding the wildfire smoke: all indications are that with the arrival of a weak Canadian cold front tonight we will see surface- based smoke increase. Thickened surface smoke should continue thru tomorrow before finally improving late Tuesday night, with arrival of stronger backdoor cold front. Aforementioned front tonight will bring a slightly cooler and more humid day on Tuesday, with temps again impacted by smoke cover. Stronger push of Canadian air arrives Tuesday night, and this will lead to cooler temps (and less smoky skies) thereafter. JKL Flat NW flow will be over the area on Wednesday with a ridge axis over ID.
Expect near to slightly above normal temperatures today and Wednesday with highs in the generally in the low 80s, cooling several degrees by late in the week after a dry cold front passes through the area. Otherwise, an elongated ridge of high pressure extending westward from the northeast US will keep skies mostly sunny with a moderate temperature air mass resulting in highs near 80. Expect lows tonight in the low to mid 50s in clear skies.
At the beaches, the high risk of rip currents will continue today, as swells from Hurricane Sally break onshore.
1212 AM EDT Tue Sep 15 2020 Seasonably cool temperature will moderate slightly through mid week, but expect cooler weather thereafter. High pressure will continue to remain in place over the region with clear skies and light winds. Localized, and brief patchy frost is possible immediately before dawn for locations in northeast PA and in valley locations within the eastern ridges, especially Canaan Valley. Heading into today, clear skies will remain but upper level flow strong enough to advect some of the smoke from the west coast wild fires will mean temperatures today will be a bit cooler than expected. That trough/cold front will approach the region late Wednesday night, with warm advection and better cloud cover maintaining relatively warm temperature.
Lows tonight should be close to values observed this morning, with the exception of portions of southeast Missouri and southwest Illinois which should be slightly cooler. Highs should reach into the low to mid 80s Tuesday, with lows dropping back into the mid 50s to low 60s Tuesday night. This helps amplify a longwave trough across the Upper Midwest and Great Lakes. While the main feature should be the cooler temperatures behind this front, cannot rule out a few showers or storms along the frontal boundary. Along the cold front, low-level convergence appears weak, and with the better mid/upper level forcing for ascent well to the northeast, not expecting the coverage of storms to be anything more than isolated, if anything develops at all.
Slightly warmer day by a couple degrees expected this afternoon, with highs in the lower 80s. Similar story for Wednesday, with maximum readings a touch warmer in the lower to middle 80s as a weakening H85 thermal gradient settles across the area.
A strengthening trough pattern coming out of Canada and the Great Lakes, which helps to eventually kick the remnants of Hurricane Sally eastward from the Southeast US, will help push a cold front across Louisiana late this week. This is expected to bring some slightly cooler and drier air into the region, which should help bring some relief to the recent temperatures and heat indices.
Smoke from western wildfires continues to stream over the top of the Rockies ridge into the Northern Plains. A warm front currently over the central counties will continue to push north across northwestern MN today, but smoke will limit insolation so may not see highs quite as high as expected. At this point it seems that the smoke will stay in the high levels of the atmosphere and not have an impact on visibility or air quality, but will have to watch in case we get more mixing down along the front than expected. Temps should still stay in the 40s and 50s tonight with plenty of mixing, but continued cold air advection will bring much cooler highs for Wednesday in the 50s to low 60s.
As for temperatures, lows tonight will be in the upper 50s to around 60, with some colder spots in the low to mid 50s across the eastern Ozarks. Highs Tuesday afternoon will top off in the lower 80s. A weakness in the upper ridging will allow a cold front to drop into northern Missouri Wednesday afternoon and through southern Missouri Wednesday night.
Upper level analysis places broad ridge over the Rockies into the plains. Some high clouds lifting over the ridge continue to pass through our area. The smoke has had some influence on temperatures today, as we have remained cooler than expected. Ridge breaks down over our area, though will strengthen over the western United States. Cool high pressure settles in for Wednesday, bringing a notably cooler day.
255 AM MDT Tue Sep 15 2020 The broad area of high pressure which settled over the region this weekend will remain overhead through midweek according to the latest model guidance. Limited moisture beneath the high is expected to yield sunny or mostly sunny skies for most areas. Warmer than normal temperatures will continue across the region beneath the high.
High pressure is centered over the Great Lakes with ridging extending back across the mid Missouri Valley. On the southern periphery of this ridge axis, fair conditions are in place across central Illinois with calm or light E/NE winds. Remnants of Hurricane Sally to remain well to our south, so any focus will be with the cold front passing through Wednesday night. Still some model variability in the southward extent of the colder air with the northern stream trough late week.
A cold front begins to move through the area late Tuesday afternoon through the evening, with winds remaining somewhat breezy and turning to the north behind the front. The previously mentioned cold front continues to work through the area through the night Tuesday and Wednesday morning. However, in its wake, much cooler temperatures are in store.
930 PM PDT Mon Sep 14 2020 High pressure aloft will continue a slow warming trend through Wednesday.
Weak mid level ridging and lacking moisture will keep our skies fairly clear through Tuesday, with just some occasional high clouds or afternoon cumulus.
There is also a weak cold front oriented from NW to SE across north and portions of central GA this morning. a high pressure ridge nosing down the Eastern seaboard helps keep more stable conditions in place over the area.
205 AM MDT Tue Sep 15 2020 The high pressure center continues to be positioned over the Four Corners region, keeping a weak northwest flow over the region.
While this will likely put a slight damper on radiational heating, model soundings continue to support a fairly mixed atmosphere, suggesting that warmer temperatures and drier dewpoints would be favored. As we head into the evening/overnight period, expect a cold front to gradually sag across the region. The aforementioned cold front will continue to dive SE and exit the region Wednesday, bringing cooler temperatures to our area in its wake.
/NEW/ /Through Tuesday Night/ While large scale ridging will be mostly in control of the southern half of the CONUS, a weak trough is progged to linger over Oklahoma and northwest Texas for the next few days. The upper trough that has kept Sally well to our east will begin pushing to the southeast on Wednesday.
1248 AM CDT Tue Sep 15 2020 Cold front has moved into the northwest, oriented southwest- northeast through Sidney, MT, to Tioga, and continuing up across the International Border. Upper level analysis places broad ridge over the Rockies into the plains. Some high clouds lifting over the ridge continue to pass through our area. The smoke has had some influence on temperatures today, as we have remained cooler than expected. Ridge breaks down over our area, though will strengthen over the western United States. Cool high pressure settles in for Wednesday, bringing a notably cooler day.
High pressure continues to dominate the area with an H5 ridge axis centered over the Northern Rocky Mountains.
/Issued 1152 PM CDT Mon Sep 14 2020/ /Through Tuesday Night/ While large scale ridging will be mostly in control of the southern half of the CONUS, a weak trough is progged to linger over Oklahoma and northwest Texas for the next few days.
327 AM EDT Tue Sep 15 2020 High pressure directly overhead this morning will control our weather for the next couple of days.
200 AM CDT Tue Sep 15 2020 Tranquil weather continues today as high pressure over the region will make way for a pleasant afternoon. Expect afternoon highs to climb into the lower 80s across the region with plenty of sunshine. For tonight, overnight lows drop into the lower 60s. A weakness in the upper level ridging will allow for rain chances to be introduced to the forecast for portions of the region on Wednesday.
An inverted trough develops over southeast KS and eastern OK tonight, which redevelops ridge axis in the vicinity of KICT proper. Wednesday: Slow development and east movement of upper trough will result in 850MB winds going from west in the morning to north by mid morning.
133 AM EDT Tue Sep 15 2020 Canadian high pressure will build into the region the first half of this week.
449 AM MDT Tue Sep 15 2020 The strong upper level ridge will remain parked over the region through tonight. Flow aloft turns a little more northerly today as the ridge retrogrades slightly, and that will allow for more smoke/haze to infiltrate the area from the north through this afternoon and tonight. HRRR would indicate most of this stays aloft today, and then may settle toward the surface late tonight or Wednesday behind a weak cold front. Locations along the Front Range will be several degrees warmer again with a light downslope component. Upper level ridging will continue to dominate weather across Colorado through the end of the week.
400 AM MDT Tue Sep 15 2020 Today, westerly winds will maintain warmer temperatures over much of Central and Southwest Montana but another weak cold front is expected keep cooler temperatures for north-central locations.
The result of this stagnant pattern will be a continuation of the same as afternoon temperatures warm into the lower to mid 80s for highs and overnight temperatures dip down into the lower to mid 50s for lows. There will be a slight increase in the lower troposphere pressure gradient today, leading to south to southeast winds 10 to 15 mph, but I would not expect wind speeds to get much stronger than that.