Aikyam-Lab/Synoptic-Bench huggingface dataset:
A weak cold front will move into the area Sunday afternoon and slowly move south through the afternoon and evening. A cold front will move into northwest Oklahoma Sunday and move through at least KGAG and KWWR shifting the winds to northeasterly.
1250 AM EST Sun Feb 26 2017 In the wake of an upper level disturbance, high pressure will build in the midwest and settle south of the Ohio Valley tonight. A weakly inverted trough at the surface will help move these showers northward on Monday. Warm air advection in the low levels overnight will result in clouds clearing across the entire region. Temperature profiles suggest that although precipitation will start out as a rain and snow mix, as warmer air works into the region precipitation will change over to all rain.
Will hold off for now and watch how the low clouds develop. With some veering of the low-level flow, a dryline should mix east across most if not all of the Big Country, extending southwest to between Ozona and Sonora by late afternoon. With considerable sunshine, temperatures are expected to reach the lower to mid 70s across our central and western counties, especially behind the dryline.
A weak trough moving through the flow will allow scattered showers and the chance of thunderstorms to develop across portions of southeast OK and western AR late in the period.
340 AM EST Sun Feb 26 2017 High pressure at the surface prevailing today will promote a clear sky with dry conditions. Despite the fact that there will be plenty of sunshine, a light WNW flow will keep highs in check once again (in the 50s) -- though it should feel a bit warmer than yesterday due to the lighter surface winds. This cloud cover will help keep lows 5-8 degrees warmer than the previous night, preventing a freeze from occurring for a second night in a row.
Should be a little warmer and any snow that was going to blow, should have done it today.
156 AM MST Sun Feb 26 2017 The Tri-State area will see an increase in cloudiness this evening ahead of a weak upper trough that moves across the area.
A weak warm front will shift north allowing for a chance of thunderstorms overnight across much of the region.
High Partly cloudy skies are expected Monday under departing high pressure.
The eastward shift of the High today means return flow southerlies develop once again, and start a transition to warm and moist air advection that will lead to a chance of pcpn, including thunderstorms, returning to the forecast sooner than later. Abundant sunshine today will help high temperatures climb toward seasonal norms in or close to the lower 50s.
448 AM EST Sun Feb 26 2017 High pressure will build in today ending the flurries and snow showers.
JHM Low pressure system along the coast will move southward during the day and may bring a few stray showers to the interior valley this afternoon. Temperatures will lower into the low to mid 30s by Sunday morning. A trough will remain over the region on Monday and residual showers will likely linger over the mountains but for the most part expect dry weather.
Cooler drier air continues to move into the region behind a weak passing front. A dry cold front is moving through the region tonight.
Portions of NW Tennessee and N Mississippi cooler faster than forecast this evening. Temperatures are expected to fall into the low to upper 20s areawide under clear skies and nearly calm winds. The coolest readings will drop into the lower 20s, especially along the Tennessee River Valley. As the surface anticyclone shifts east on Sunday, surface winds will quickly turn around to the south and push temperatures back into the upper 50s during the day. By Monday morning, a warm front near the ArkLaMiss is progged to lift northward across the Mid-South throughout the day.
Sunday looks dry and perhaps a touch cooler in the east vs today behind weak cold front.
Winds have remained somewhat brisk, especially over the eastern cwfa, but they will diminish as the ridge moves into our cwfa. Dew points in the lower teens and single digits have kept the humidity down. Winds will continue to diminish early tonight then switch to the south as the ridge moves off to the east. Rising midlevel heights ahead of trough digging into into the southwest U.
The upper level trough has shifted to the east of the region this afternoon and flow aloft has become more zonal. At the surface, high pressure will build across the area overnight. Thereafter, we will see clearing skies tonight as the high pressure builds in. Temperatures tonight will be cold, dipping into the lower to mid 20s.
357 AM EST Sun Feb 26 2017 High pressure builds along the Eastern Seaboard today.
Little change to the forecast for tonight as a high pressure system centered over AR/W TN slowly advects east towards the TN Valley underneath a dry and subsident regime. A clear sky will dominate with a cool northwesterly wind of 5-10 MPH until early Sunday morning, when the high pressure center arrives over central TN/N AL --relaxing the pressure gradient. Due to the incipient calm winds and clear sky, radiational cooling should result in overnight lows dropping below freezing. Temperatures are already in the 30s across portions of southern middle TN while the rest of the area remains in the low 40s. A rather weak trough will begin to move into the Central Plains and upper level flow will take on a more southwesterly component by the afternoon.
Moisture returns as do warmer temperatures with highs near 80.
1136 PM CST Sat Feb 25 2017 High pressure centered over eastern Oklahoma will move east through the Mississippi Valley tonight and into the southeast CONUS on Sunday. The ridge axis will pass east of the CWFA after 06Z tonight which will cause the wind to swing back around to the south. Wind should drop off pretty quickly later this afternoon and this evening as the ridge axis moves closer.
1228 AM EST Sun Feb 26 2017 High pressure will build in today.
105 AM EST Sun Feb 26 2017 High pressure will move in from the west today, then move offshore later tonight and Monday.
357 AM CST Sun Feb 26 2017 The surface anticyclone has settled over the Mid-South early this morning, resulting in light and variable winds. Moisture will increase with time as southerly flow persists, resulting in warmer overnight lows and fueling the upcoming rain chances. Temperatures will be warmer across the region this afternoon, with highs generally in the mid 50s to near 60 degrees.
312 AM EST Sun Feb 26 2017 It'll be blustery and noticeably cooler today behind a departing cold front. A weak trough will cross the area later today and that may produce a few mountain snow showers. Low pressure passes to our north late tonight and Monday and will introduce warmer air once again to the region. The trailing cold front will cross the area late Monday. a surface cold front had just exited the coastline. Diminishing winds and clearing skies this evening as weak ridging takes hold. Any rain or snow showers with this boundary should be confined to the higher terrain.
345 AM EST Sun Feb 26 2017 Cool high pressure with critical RH will build into the region today, then shift offshore tonight and early this week, as a warm and moist air mass gradually builds from the Atlantic and Gulf of Mexico.
Weak back-door cold front will make its move into forecast area and will then begin to lift north, causing variability in surface wind direction. Southwest or south surface winds this evening generally at or below 15 kt expected until weak cold front causes shift to northwest.
1142 PM CST Sat Feb 25 2017 At 3 PM, a ridge of high pressure produced mostly to partly sunny across the area. A low pressure system will move quickly east across northern Minnesota and northern Wisconsin tonight.
High pressure will move across the region tonight and result in clear skies and light winds. The flow aloft will be out of the southwest and aid in the arrival of warmer and moist air ahead of an approaching warm front from the southwest.
1225 AM EST Sun Feb 26 2017 Showers end as a cold front moves off the coast. Cool high pressure then builds south of the area through Monday.
1049 PM MST Sat Feb 25 2017 The Tri-State area will see an increase in cloudiness this evening ahead of a weak upper trough that moves across the area. Monday: SW flow aloft and lee trough deepening should support WAA over our CWA. Gradient also increases in a similar area along trough axis and we could see gusts in the 20-25 mph range.
Low level moisture will increase Sunday morning ahead of an approaching low pressure system. It will not be as cold as last night with lows expected to range from the lower 30s to the lower 40s across the region. Southerly winds will increase to 10 to 20 mph by midday Sunday and high temperatures will range from the lower 60s northeast to around 70 degrees west.
A surface cold front was translating southeastward across north FL this evening, with very dry air behind it. Deep layer high pressure will be in place over the southeast on Sunday. On Monday, high pressure will move east out into the Atlantic as a trough of low pressure sweeps across the lower Mississippi valley. This approaching trough will bring a return of southerly flow and thus warm, moist air from the Gulf.
300 AM EST Sun Feb 26 2017 High pressure will build in today ending the flurries and snow showers.
High pressure is currently situated over central Oklahoma, giving us southwesterly winds at the surface. Models are starting to hint at a chance for stratus/fog Monday morning as more moisture advects into the area due to increased troughing in the western CONUS.
1042 PM CST Sat Feb 25 2017 Upper trough crossing the Northern Plains will bring a limited chance for very light precipitation into the evening hours across the highway 14 corridor. The aforementioned trough will move east of the area by Sunday morning, leaving a poorly defined frontal boundary across the CWA. The impact of snow cover has been marginal today, and would expect that to be the case again on Sunday, but will again hold temperatures a couple degrees cooler in the deeper snow pack areas. Sunday night will transition from a west-northwest flow aloft to a southwesterly flow as a Pacific trough digs into the Northwestern US.
A warm front will continue to move through the area this morning. There has been a band of over-running precipitation to the east of the front overnight with a wintry mix that has included freezing rain. The precipitation will move to the east early this morning and high pressure and upper ridge will build into the area today. Will cancel freezing rain advisory with forecast issuance. Temperatures will be much warmer than recent days although lingering snow cover will limit warmth somewhat. Ridge moves to the east tonight with dry weather continuing.
MVFR ceilings were in and out of the TXK/ELD/MLU and SHV terminals with the higher ceilings noted at the TYR/GGG/LFK terminals. Sfc ridging has shifted east of the region and that will allow for a mostly ENE to E wind near 7-12kts through the day.
634 AM EDT Wed Mar 15 2017 Strong low pressure well north of the forecast area will continue to help cause breezy conditions today. Canadian high pressure building into the area will bring freezing conditions tonight and Thursday night.
Otherwise, expect improving VFR conditions today as high pressure builds in.
341 AM MDT Wed Mar 15 2017 Satellite imagery pretty much sums up the forecast for the next 48 hours as a strong ridge of high pressure slowly builds northward across the Great Basin. Bigger concern with this building ridge is a rather prolonged stretch of above normal temperatures.
1144 PM MDT Tue Mar 14 2017 06Z TAF CYCLE A ridge axis will cross on Wednesday resulting in lighter winds with well above normal temperatures. Winds will increase again aft 19Z Wednesday but trend lighter than today as high pressure crests over NM.
The models show H7 temperatures climbing to 2 to 5 deg C on Wed/Thu as upper-level ridging builds into the area, so expect widespread 70s to prevail for highs along/E of I-25. Overall risk for precipitation this period is low given a dry column and strong subsidence beneath the ridge.
325 AM CDT Wed Mar 15 2017 Upper ridge centered over the Western US will dominate weather pattern for the region as a large trough remains over the NE. The ridge will build east and flatten out as it does.
and Thursday High pressure over the upper Mississippi Valley will slowly slide south southeast towards the southeastern CONUS through Thursday. Upper level ridging will keep the weather dry through Thursday with not much weather of note across the western Great Lakes. Mostly clear skies tonight will again allow temperatures to plummet, however a warmer atmosphere should keep lows above the temperatures experienced this morning. By Thursday highs will soar to around 40 as we get on the backside of the high and surface winds turn southerly ahead of an approaching low pressure system developing over the Plains.
The higher deck resides well above 20,000 FT msl and lower clouds around 4,000 FT msl. The temperature difference will be felt even more so in the early morning hours with wind chills in the low 40s across much of the area except Miami Dade metro areas where could see wind chills in the mid 50s. As ridge gradually builds across South Florida, drier and cooler air mass will continue to filter into the region with this northwest flow for the next several days. Tonight, temperatures will feel cooler with lows falling into the 50s for most areas, with some 40s interior. Wind chills values will be in the low 30s feeling cooler Wednesday night into Thursday morning. At this time, temperatures will remain above freezing level therefore no freeze is expected.
The leading edge of the arctic ridge marked by a dry cold front will be just south of our CWA at the beginning of the period. Wednesday will be sunny and breezy with highs only reaching the low 50s for our northern zones and mid to upper 50s elsewhere. Temps Thursday/Thursday night will only moderate slightly with highs ranging from the upper 50s to lower 60s and lows in the lower to mid 30s.
In the big picture this morning, we have an amplified weather pattern across the Country with a ridge to our west and trough to our east. So, today will be warmer than yesterday, but the main warm-up comes in the following days. Still, today will be a couple degrees warmer than yesterday. We will have to keep an eye on this possibility because with a warm layer over- running a cold surface tonight, this could lead to some light freezing rain.
High pressure holds on through Thursday yielding another precipitation free and milder day.
258 AM MDT Wed Mar 15 2017 Dry and benign weather is expected for the mid to late portion of the week as a low amplitude ridge axis moves eastward into the northern and central Rockies. Thursday will be even warmer across western Nebraska and the I80 corridor with highs near 80 around Scottsbluff and Sidney. Models show a weak cold front moving into Wyoming on Thursday. It will be noticeable more windy on Thursday ahead of the cold front.
323 AM CDT Wed Mar 15 2017 Deep upper low is situated over the Ohio Valley into the eastern Great Lakes with strong nw flow aloft over the Plains. At the surface, high pressure is centered over IA and extends through the Mississippi Valley. Return flow will slowly increase over the area into Thu which will provide some warmer temps. This high will quickly push east and by Sat night we will be back in return flow.
358 AM MDT Wed Mar 15 2017 Upper level ridging remains over the Rocky Mountains today with moderate northwesterly flow aloft over northeast Colorado. A warm and dry airmass is in place over the region with the upper level ridge axis forecast to remain over the Utah/Colorado border through this afternoon. Very little in the way of sky cover is expected due to the proximity of the ridge axis. Very warm and dry conditions will continue on Thursday under the influence of a flattening ridge aloft with dry westerly flow. A broad area of low pressure builds at the surface in Nebraska throughout the day, with a pressure gradient favoring a west- northwest wind direction across the Plains.
330 AM EDT Wed Mar 15 2017 Intense low pressure off the New England coast coupled with an area of high pressure over the mid Mississippi Valley will create blustery and chilly conditions across central NC today.
553 AM CDT Wed Mar 15 2017 Skies remain clear under approaching high pressure. VFR conditions are expected through the TAF period as high pressure drifts across the region. High pressure will bring quiet weather through tonight. We start to get into a return flow late tonight west of Madison as the ridge slides by, but probably too late to help keep temps up.
High pressure aloft will exit Utah later today, followed by a couple of weak weather disturbances impacting far northern Utah and southwest Wyoming late tonight through Thursday.
309 AM MDT Wed Mar 15 2017 With an upper level ridge over the area today and tonight, the weather will remain dry and very warm.
Fast moving low pressure system moving through the Pacific Northwest today will bring increasing winds and clouds to the region. In the Sierra, ridge gusts could reach up to near 80 mph by this afternoon and tonight.
/issued 349 AM CDT Wed Mar 15 2017/ Northwest flow aloft is expected to persist today and tonight as a flattening ridge edges closer to the CWFA. Thanks to the cold front, forecast highs should hang around the 60s with cooler temps off to the east where the cooler air is more pronounced. Mean ridging pattern gradually amplifies and shifts east for the end of this week and through the weekend.
Cold northwest flow aloft will persist through Wednesday with high pressure moving to along the MS River by afternoon. The record low maximum temperatures at Huntsville and Muscle Shoals are as follows for 3/15: HSV: 40 in 1937 MSL: 40 in 1924 It will be close, but record minimum temperatures should be safe for Thursday 3/16 with forecasts in the lower to middle 20s as high pressure drifts eastward through the TN valley. HSV: 20 in 1911 MSL: 18 in 1916 A welcome warming trend is foreseen to begin on Thursday as minor upper ridging translates east and warm air advection develops. The prefrontal warm advection will boost temperatures closer to where they should be for mid-March: the low-mid 60s.
1222 AM CDT Wed Mar 15 2017 Kept a slight chance mention of light freezing rain in the far west for the early morning hours. See highs around 50 southwest to the lower 30s east. Overall this will maintain a mild weather pattern but with several passages of pacific cold and warm fronts.
341 AM CDT Wed Mar 15 2017 WV imagery this morning showing upstream ridge situated over the wrn CONUS with hefty Pacific moisture riding up and over into the cntrl Plains.
117 AM EDT Wed Mar 15 2017 An upper level low will move from the Great Lakes to northern New England through Wednesday. The upper low will exit northeast into the Canadian maritimes Wednesday night as high pressure builds into the Ohio Valley. The high will continue to influence the regions weather on Thursday. 850 mb temperatures Wednesday morning will be around 19 degrees C below zero and slowly climb during the afternoon as the upper level low heads east. For high temperatures Wednesday this means the freezing mark will likely be tough to come by.
This will leave plenty of clear sky across the lowest 10k ft through a good portion of the daylight period. Clear sky across the lowest 5000 ft to hold through first half of day, with potential for a narrow period of increased stratocu coverage at 4-5k ft mid-late afternoon.
143 AM EDT Wed Mar 15 2017 Strong low pressure well north of the forecast area will help cause breezy conditions through Wednesday. Canadian high pressure building into the area will bring freezing conditions.
238 AM MDT Wed Mar 15 2017 Continued dry with warmer temperatures through Wednesday. The upper ridge over the Rockies today pushes east over the high plains on Wednesday while the lee trough also expands from the Front Range over the Plains. Temperatures will continue to rise on Wednesday with highs reaching the middle 70s over the western sections of the forecast area while the eastern sections remain in the lower 60s. With the warmer temperatures expected, RH values will drop into the lower teens of percent across far eastern Colorado and the eastern Colorado border area. Latest runs of the GFS/ECMWF do show broad H5/H7 ridging over the central portion of the country starting off with the upcoming weekend.
Highs today will vary from around 40 degrees in the southern TN valley to the mid 20s across the higher elevations. Temperatures drop back down below freezing after sunset tonight and once again will bottom out in the upper teens to lower 20s.
The ridge axis will continue advancing through the region Wednesday, keeping skies mostly sunny. Due to this southerly flow, high temperatures Wednesday should rise into the lower to mid 30s across the area. Surface and upper level ridging moves east of the forecast area Wednesday night. Thursday night finds an area of low pressure moving through southern Manitoba and pushing a cold front into the forecast area. Used a blended approach which has the potential for some light freezing rain in the evening, before changing to a mix of rain and snow overnight.
A slight moderation in temperatures will occur by this afternoon as the high shifts to the east and winds switch around from the south although a stream of mid-level clouds from the northwest will cut back on full warming potential. After a light freeze tonight, warm air advection will really get underway on Thursday with temperatures rapidly rising into the lower 60s across most of the region.
250 AM MDT Wed Mar 15 2017 Early morning WV imagery and RAP upper level analysis show steep NW flow over our CWA between building ridge in the western US and large scale trough across the eastern US.
High pressure will bring quiet weather through tonight. We start to get into a return flow late tonight west of Madison as the ridge slides by, but probably too late to help keep temps up.
349 AM PDT Wed Mar 15 2017 The high and offshore flow will bring partly cloudy skies and well above normal temperatures. The coast will have night into the morning fog and cooler temperatures this week in onshore flow.
349 AM CDT Wed Mar 15 2017 Northwest flow aloft is expected to persist today and tonight as a flattening ridge edges closer to the CWFA. Thanks to the cold front, forecast highs should hang around the 60s with cooler temps off to the east where the cooler air is more pronounced. Mean ridging pattern gradually amplifies and shifts east for the end of this week and through the weekend.
Showers in northern-most zones today on the periphery of warm upper ridge. A little cooler today except in south-central Idaho with warm with upper ridge still there. Ridge will be shifting eastward this afternoon allowing the northern showers to spread south, but slower than shown by the GFS which again seems to be a fast outlier. Breezy and cooler Thursday, but still warmer than normal for mid-March.
As an upper level trough and associated cold front approach western Montana and central Idaho late this afternoon, precipitation coverage and intensity will be on the increase. A cold front will swing through the region late tonight into Thursday morning. Precipitation will come to an end through Thursday afternoon as high pressure builds into the region.
358 AM CDT Wed Mar 15 2017 Expect a nice day for the forecast area as high pressure moves overhead.
Strong ridge through western states with our temperatures again 15-18 degrees above average yesterday. As the ridge axis phases east of the area we'll see increasing cirrus level clouds from the west today. As the ridge buckles with a weak zonal flow over southern Arizona, we really won't see much of a reduction in actual height and thickness values, so temperatures will remain fairly steady and similar to recent days the rest of the work week.