Aikyam-Lab/Synoptic-Bench huggingface dataset:
522 AM CST Sun Nov 26 2017 Daytime highs today will be warmer than yesterday and Monday looks to be even warmer as new record highs could be realized.
No clouds expected other than cirrus in northwest flow aloft spilling over Rocky Mountain ridge axis. /Issued 424 AM CST Sun Nov 26 2017/ Today looks to be fairly similar to yesterday, only warmer as winds have shifted back to the south. While today's temps will push the area into the 70s, the start to the work week will be even warmer with record highs in the 80s due to the upper level high pressure pushing eastward and bringing downsloping winds on top of southerly flow at the surface.
Pcpn will come later today and especially tonight as moisture advects in from the southwest and a cold front comes in from the west.
Skies will clear from northwest to southeast this morning in the wake of a dry cold front. A large mid and upper level trough lies over the eastern half of the CONUS today, with a short wave trough rolling through from the lower Mississippi valley into the northern Gulf waters. This will push a dry cold front across the local area.
955 AM EST Sun Nov 26 2017 Cooler high pressure will continue to move into the region today.
621 AM EST Sun Nov 26 2017 Cooler today. High pressure drifts through with milder temperatures through the work week.
248 AM MST Wed Jan 3 2018 Upper level ridge of high pressure continues to build over the Pacific Northwest. As a result warmer temperatures will slowly move back into North Central and Southwest Montana over the next few days.
Low level inversions will continue as upper level ridging remains anchored overhead with stratus across the region. BDN/RDM will likely remain in the LIFR stratus/freezing fog through tomorrow morning.
1028 PM MST Tue Jan 2 2018 Very dry dew points have spread across southern CO in the wake of the upper trof pushing into the southern plains. Dew points in the mountains are commonly in the -15 to -25 degree range with the lowest dew point registered on Pikes Peak of around -40. This does not look out of the realm of possibility as several mesonet sites in the higher mountains are in the -30s. Wednesday will be a little warmer across the area as the upper ridge expands eastward a bit. Highs should climb back into the 40s across the lower elevations with 20s and 30s for the mountains.
256 AM CST Wed Jan 3 2018 Early this morning, a cold front was located across the area. This cold air and high pressure are main weather drivers in the short term. Overall there is a decent spread in the guidance with the GEM again being the lowest.
1245 AM EST Wed Jan 3 2018 Canadian high pressure building toward the region overnight will move east of the region Wednesday.
220 AM MST Wed Jan 3 2018 The upper level pattern for the next few days will feature a large upper ridge axis west of the Continental Divide and low pressure over the east/northeast part of the nation. For today high temperatures range from the low 30s east/northeast to near 50 west.
High pressure now sandwiched between this feature and another cold front dropping southeast from the upper Midwest. Cloud cover now nearly in place over the area will insulate temps a bit heading into the morning hours but still will see some temps around zero along with a ridge to valley temperature difference. Through the day today the mentioned low to the southeast will eventually push east and then up the east coast with the high pushing off to the southeast as well. This will allow the mentioned cold front to dive south into the area this afternoon and into tonight. The breif change to southerly winds will allow afternoon temps to warm to around freezing.
321 AM EST Wed Jan 3 2018 High pressure today. Cold front tonight followed by more arctic air. High pressure will provide dry weather today although some mid to high clouds from the southeastern low will effect portions of the area. With the upslope flow, ran the highest pops in the northern mountains of WV. The cold air tonight combined with the wind will also create low wind chills in the higher elevations of the northern mountains.
232 AM CST Wed Jan 3 2018 Early this morning water vapor imagery showed an upper trough swinging southeastward while surface analysis revealed an associated cold front sliding through the area. Remaining snow showers/flurries will continue to decrease as drier air/subsidence works in behind the departing upper wave and high pressure begins to sink south into the upper Midwest.
The forecast focus will be on temperatures until late in the weekend when the pattern changes and brings us warmer weather and a chance of precipitation.
Lake effect snow with gusty winds/blowing snow for north wind Low pressure over eastern Lk Superior that brought light snow to much of Upper Michigan overnight will be near Sault Ste Marie at daybreak this morning. Thus far lake effect along and behind the trough has been at marginal intensity likely due to lower inversions noted on 00z INL and YPL soundings. With the colder air moving in, temps today will stay in the single digits west and only stay in the lower to mid teens initially over the east and south before falling off later today. Heavy freezing spray is expected through much of this week. Will have occasional heavy freezing spray warnings through late this week to cover the hazard.
IAZ008>011-018-019-029-030-MNZ079-086>088-094>096- WIZ017-029-032>034-041>044-053>055-061-031700- Weather Summary for Upper Mississippi River Valley 310 AM CST Wed Jan 3 2018 A cold front was exiting east across Wisconsin early this morning, taking bands of light snow and clouds with it.
1233 AM EST Wed Jan 3 2018 High pressure through Wednesday. Cold front Wednesday night followed by more arctic air. Strong Arctic high pressure overhead, making for clear skies and cold temps across the region. High pressure still firmly in control of the sensible weather across the area. Temperatures in the lowlands approach freezing, but will likely fall just short for most on Wednesday.
251 AM MST Wed Jan 3 2018 Pretty tranquil weather in the short term as high pressure to our west deflect any Pacific storm system north.
This is expected to be primarily speed shear along and ahead of the cold front dropping southward through the night. As a result, cooler temperatures will be seen under the cloudy skies with highs only in the mid teens to low 20s.
Arctic sfc ridging over Cntrl TX this morning will continue to sink S today, with the morning sfc analysis depicting a cold front from portions of the Midwest into Nrn MO and Nrn KS, near the leading edge of the post- frontal cu field spilling S per the GOES-16 imagery. Insolation and Wrly winds ahead of the front will allow the region to finally thaw out (well above freezing this afternoon), before the reinforcement of cold, dry air mass spills S in its wake.
A deep upper trough remains in place over the east 2/3 of the country, and short wave that brought flurries to the area is departing to the east as it rounds the base of the larger trough. Regardless of how low the area will still see several hours at or below freezing.
307 AM EST Wed Jan 3 2018 Winds will come in from the southwest today ahead of an approaching cold front, allowing temperatures to rise well into the 20s, and possibly lower 30s in southern Kentucky.
This will stunt fall temps across the area and so have slowed temps dropping through the night and lessened the ridge to valley temperatures difference. The ridge will hold its ground tonight with clear skies continuing. While temperatures will be milder by Wednesday afternoon (around 30), this trough will bring a reinforcing shot of arctic air to the area Wednesday night. Models continue to underplay the QPF during the Wednesday night period, and have gone a bit more aggressive, especially into the higher terrain where we will see better upslope conditions.
/issued 840 PM CST Tue Jan 2 2018/ Potent upper level trough currently swinging through the Four State Region attm. The activity is quickly moving to the northeast in advance of the trough axis itself but because precip, albeit very light, is making it to the ground, did throw in some flurries for the remainder of the night for most areas with the precip ending across NE TX likely by midnight if not sooner.
326 AM CST Wed Jan 3 2018 After several days with below freezing temperatures, the entire area will warm well into the 30s with 40s across the west and south this afternoon. This will be in spite of a weak surface cold front that will move through the area this morning, but abundant sunshine and a downslope component to the low level winds will help.
Although, temperatures will rise to freezing or just above for a couple of hours today across much of the area before dropping back below freezing behind a cold front.
A weak cold front/surface boundary will briefly stall out across western Kansas this morning and then begin to slowly move back east as a warm front during the day as northwesterly down slope flow improves across eastern Colorado and far western Kansas.
Otherwise, it will be a few degrees warmer today as another arctic front approaches late in the day. High temps should reach into the lower to perhaps mid 30s for much of the area.
254 AM MST Wed Jan 3 2018 The upper level pattern for the next few days will feature a large upper ridge axis west of the Continental Divide and low pressure over the east/northeast part of the nation. For today high temperatures range from the low 30s east/northeast to near 50 west.
1048 PM CST Tue Jan 2 2018 MVFR/low end VFR CIGs are eroding rapidly to the southeast as the upper level trough axis sweeps over South Central Texas.
1256 AM EST Wed Jan 3 2018 The high pressure ridge is on top of the area now, so winds are light across the area. After sunrise, the ridge will be sliding away to the east and a brief return flow will set up, with generally SW to W winds during the afternoon. During the evening the next cold front will be washing through the area, further veering the winds some more, to the NW and increasing the winds as well.
Even the beaches will probably drop below freezing, and Galveston Island was already at 33 and falling at 3 AM.
A weak upper level system will produce spotty precipitation over the area tonight followed by high pressure and dry conditions Wednesday and Wednesday night.
As the upper low swings out of the area, we will see any flurries fade and sun will begin to shine by the afternoon. Look for today to even be a few degrees warmer than Tuesday with readings in the mid 30s to mid 40s. This wind will help usher in temperatures back into the low teens across the far north and low 20s across the south.
412 AM EST Wed Jan 3 2018 A cold front trailing Great Lakes low pressure will bring increasing clouds and a chance of snow showers today. Arctic high pressure following the front will be accompanied by mainly dry weather and very cold temperatures tonight into the weekend.
Some wind gusts expected Weds afternoon, but the building ridge should decrease winds for Weds evening. ice crystals only with no threat for freezing drizzle nor freezing rain. We would likely be experiencing more snow/sleet right now if not for a dry lower 3k foot layer evaporating what crystals are falling from the lower mid-levels. , regional teen dew points) will also exclude the mention of early Wednesday morning icy elevated roadways and bridges. most communities along and north of I-10 will fall into the lower to middle 20s for a good 8 to 10 hours. Coastal minimum temperatures will be relatively warmer due to lingering clouds/winds but still fall into the middle to upper 20s from midnight through 10 AM Wednesday.
Northerly winds will begin the day but with a surface ridging shifting to the south winds will swing around to the southwest this afternoon. The western CONUS ridge will move over the Rockies for the rest of this week but we will still be in northwest flow aloft locally.
Meanwhile back at home, temperatures have moderated some and many areas today will warm a bit above freezing for the first time in several days.
and building warmer temperatures over the Rockies and the west coast. As a result, most of Central IL will start the day in the teens, warmer than it has been the last couple days.
20/06Z TAF CYCLE High pressure will dominate through the period with widespread VFR conditions expected.
1232 AM EST Mon Nov 20 2017 Ridge of high pressure dominating period as it slides southeast into the region. With gradient winds set to lax overnight under clear skies, the radiational cooling component will take over from the advection process and allow for widespread locations reaching the freezing mark. With this shift in the low level fetch and a quick transition from NW flow aloft to amplifying SW flow east of a developing northern Gulf trough, we should see some moisture return off the Atlantic coast Monday night, which should allow for a low level cloud deck pushing in across the southern majority of the area after midnight.
Weak northwesterly upper-level flow will amplify through the week as a strong ridge remains anchored over the western U.
120 AM EST Mon Nov 20 2017 Cold front moving quietly through South Florida will bring little wind change but increasing clouds. The cold front will push through the region tonight, however it will not have a lot of moisture to work with. /issued 332 PM EST Sun Nov 19 2017/ A weak cold front will approach and move through the region tonight bringing slightly cooler temperatures to South Florida. This front will have very little moisture to work with as it passes through, so the rain chances will be low, however, the highest chances tonight will be confined to the east coast as well as the marine areas.
310 AM EST Mon Nov 20 2017 07z sfc analysis shows cold high pressure moving into Kentucky. Dewpoints, meanwhile are running in the low to mid 20s with many valley locations seeing small dewpoint depressions that could result in some patchy fog. Northwest flow starts off the first part of the day as the heights start to rebound over Kentucky in the wake the departing deep trough from this past weekend.
This has allowed more zonal flow to usher warmer air into southern WI and the region overnight, which will continue into tonight ahead of approaching strengthening cold front. A warmer day lies ahead as increasing southwest winds carry milder 925H temperatures in the 5 to 7C range into southern WI. Could even be a little warmer, but hesitant to go to warm due to high clouds.
1044 PM CST Sun Nov 19 2017 150 PM CST High pressure is centered over the southern Great Plains this afternoon with ridging extending into the Upper Midwest. Ridge axis will gradually traverse the CWA this evening and tonight with winds backing to the southwest behind. Expect highs right around 50F during the day Monday with mostly sunny skies and breezy southwest winds on the backside of the ridge which will settle across the Tennessee Valley. Deubelbeiss 212 PM CST Still relatively warmer at the start of the period with upper level trough and surface reflection well to the north.
Max temps today will be similar to yesterday with mid-upper 60s expected for most areas, possibly reaching the lower 70s across SW areas. On Tues, expect temps to warm into the mid 70s with scattered showers developing offshore and near the coast as a mid/upper level trough amplifies over the area.
1123 PM EST Sun Nov 19 2017 Aviation A high pressure ridge will build in and bring fair weather tonight through Monday.
The embedded wave within northwest flow impacting the Great Lakes today will lift to the east along with the main upper trough as it moves into the northeastern US tonight. Replacing it will be the north side of a high pressure building across the southern US. Tomorrow will see some warm air advection with mostly clear skies as high pressure brings a dry start to the work week. Pressure gradient will increase slightly ahead of the next low pressure system to affect the Great Lakes region.
328 AM EST Mon Nov 20 2017 High pressure across the Ohio Valley this morning will move to the Carolinas this evening.
A broad area of high pressure will rule the lower levels.
901 PM MST Sun Nov 19 2017 A short wave trough embedded in the northwest flow aloft moves across the region overnight. The weather pattern will continue to be dry as the forecast area remains under the influence of the upper level ridge. A couple short wave troughs will move along the pariphary of the ridge.
301 AM EST Mon Nov 20 2017 Dry and cool high pressure will build across the area today.
High pressure will dominate across the region during the period with widespread VFR conditions expected. Temperatures will be overall cooler than normal to start, then warm toward the end of the week. Aloft, the deep upper low pressure trough has moved to the eastern U.
439 AM EST Mon Nov 20 2017 Upper air pattern consists of a 500 mb trough in the ern U. this morning and a trough off the Pacific NW coast and another in the Canadian Rockies. This trough in the Canadian Rockies digs quickly southeast into the northern plains tonight and is poised to move into the upper Great Lakes.
158 AM CST Mon Nov 20 2017 High pressure was southeast of the CWA early this morning and surface winds have been out of the south this evening and so far overnight. Further west, temperatures remain in the low 40s. The front will not make it into the area tonight, so overnight lows will be more mild in the low to mid 40s with steady southerly winds.
1114 PM CST Sun Nov 19 2017 High pressure ridge axis extends from the southern Mississippi region into east central IL this evening as it moves eastward. Winds and gusts have been increased a bit for tonight and tomorrow to account for the pressure gradient between the high moving into the southeast and a low moving into the upper Midwest/southern Canada region. once the ridge axis slips to the east. High pressure will keep the Midwest dry through Monday. even as the temperatures warm slightly with the more southwesterly flow ushering warmer temps into Central IL. setting up a more amplified flow aloft and a temperature rollercoaster btwn dry cold fronts and short warming trends. Still spawning a piece of that energy down into the southeastern CONUS, NAM stronger with a closed low.
Winds will increase out of the southwest to around 15kt on Monday afternoon in response to a strengthening surface pressure trough. Another chilly night will follow tonight though most spots will be several degrees "warmer" than this morning.
249 AM EST Mon Nov 20 2017 Upper air pattern consists of a 500 mb trough in the ern U. this morning and a trough off the Pacific NW coast and another in the Canadian Rockies. This trough in the Canadian Rockies digs quickly southeast into the northern plains tonight and is poised to move into the upper Great Lakes.
915 PM PST Sun Nov 19 2017 High pressure aloft along the West Coast will bring unseasonably warm weather this week.
320 AM CST Mon Nov 20 2017 Wv imagery this morning shows synoptic scale upper trof departing off of the East Coast, as another disturbance undercutting the upper ridge present across much of the wrn CONUS shifts ewd into the srn Plains. Trof will continue to deepen just to our e, leaving us under dry nw flow aloft.
320 AM CST Mon Nov 20 2017 A longwave upper TROF was over eastern North America early this morning, resulting in NW flow aloft over our region. At the surface, high pressure has moved off into the Mid and Deep South regions, resulting in a southerly flow for our region. At the same time, a tightening pressure gradient will result in strengthening southerly winds to 15-25mph with gusts to 35mph, with the highest wind speeds in northeast MO.
Temperatures have fallen below freezing across much of central Alabama this morning, with some locations across the northwest counties reporting middle 20s. This will produce slightly warmer afternoon temperatures today with highs in the upper 50s to lower 60s. Increasing southerly flow overnight will also result in much warmer temperatures with most locations staying above the freezing mark.
The pattern aloft featured west to northwest flow, while farther upstream a clipper system and associated cold front was translating southeast from Alberta.
1020 PM MST Sun Nov 19 2017 Current surface analysis shows weak low pressure over south central Canada, with warm front north and east of the area. Upper level analysis shows large scale trough over the eastern US, with broad ridge covering the western US. Warmer air has pushed into the area, with temps in the 50s across the plains, 40s over the Black Hills. High clouds are spilling over the ridge to the west, with some filtered sun at times in most areas. The main weather feature for the next several days will be a passing cold front Monday afternoon and evening, bringing a chance of rain and snow showers over parts of the area.
205 AM CST Mon Nov 20 2017 100 AM CST High pressure is across the Ohio/Tennessee valleys early this morning, with low pressure digging southeast across the Canadian prairies. The high will only slowly shift to the mid Atlantic today, while the low will deepen as it moves toward Lake Superior. The low will continue through Canada just to the north of Lake Superior, therefore breezy southwest winds will continue, and with some increasing clouds overnight lows will hold in the mid to even upper 30s.
/issued 829 PM CST Sun Nov 19 2017/ High pressure has settled over the Mid-South this evening allowing temperatures to plummet. Current temperatures range from the lower 30s to lower 40s. High pressure is currently over north Texas this afternoon. The high will slide east across the forecast area tonight. The high will slide to our east by Monday afternoon allowing winds to shift to the south and bring milder air into the region with highs expected to reach the mid 50s.
307 AM CST Mon Nov 20 2017 A mild day ahead as winds turn southwest and then west as low pressure slides southeast across Manitoba into NW Ontario. By 00z Tues, low pressure will be just nort of Kenora Ontario. As the low moves east colder air will drop south along with a wind shift to the northwest with wind speeds increasing to the 20 to 35 mph range.
246 AM CST Mon Nov 20 2017 Surface lee trof has developed over the Central Plains this morning, keeping winds up overnight and holding lows up in the 40s.
At the surface, southwest flow lead to the return of warmer and slightly more humid air across the area. This flow and warmer temperatures will be the primary weather concerns through the short term. Most of the guidance falls into the low to mid 50s across the area.
328 AM CST Mon Nov 20 2017 Low pressure currently across southern Saskatchewan will shift to southern Manitoba this afternoon, and exit across southern Ontario this evening. A strong cold front will drop south through the area this evening (sinking south of the ND/SD border already prior to 00Z). Behind the front, expect breezy northwest winds and cooler air.
A trough located in southern Alberta will dig southeast to near the ND and MN border with Canada by late afternoon. The main forcing will pass well to the north of the forecast area, however a cold front is expected to sag southward across the forecast area this afternoon and evening.
Widespread freezing temperatures for eastern valleys tonight, then daytime temperatures rebound quickly to near record or record levels by Thanksgiving. Clear skies and rather light wind speeds will set the stage for freezing temperatures in the valleys of Cochise county by Monday morning.
1255 AM EST Mon Nov 20 2017 High pressure builds southwest of the region tonight, eventually offshore Monday into Monday night.