Aikyam-Lab/Synoptic-Bench huggingface dataset:
This still suggests a few areas could see freezing drizzle/ice - with the most likely area being the easterly slopes of the Sisseton hills as winds their shift to the northeast. The entire extended looks dry at this time, with high pressure and cold air dominating the period.
A lee trof will develop by the mid morning and will increase winds to around 20mph by the afternoon as winds veer to the southwest. During this time a closed upper low across SoCal will become an open wave and be kicked eastward towards West Texas by a deeper closed upper low currently centered over the Strait of Juan de Fuca. Moisture ahead of the approaching low will move overhead as the low approaches the region. Ample lift from the low will be sufficient to provide a period of showers around midnight. Today will be warmer with highs in the 60s as there will be less clouds during the day as well as WAA at the surface and at H850.
637 AM EST Sun Jan 1 2017 Partly sunny skies and high temperatures in the thirties are expected today as high pressure resides over the area. Cold front is currently moving through the western Catskills and northeast Pennsylvania. Initially the surface temperatures will be cold enough for precipitation to fall as either light freezing rain or sleet then as the boundary layer warms later Monday the activity will change to light rain. Latest model guidance shows temperatures at the surface warming slightly slower than previous guidance so in the normally cooler areas in the eastern forecast area, western Catskills and Oneida County, this spotty wintry mix could continue well into the afternoon. Temperatures in the colder locations in the far eastern CWA such as Oneida to Sullivan Counties in NY could start out near freezing. Have a chance of evening freezing rain.
southerly flow over the region will give the area daytime highs into the lower and mid 40s. trough/low moves out of eastern Colorado into the Plains region. High pressure to the east during this time will give the region ESE flow initially. Potential for freezing drizzle to occur as overnight lows will drop into the 20s. Slow movement of the system out of the CWA will keep stratus/fog and freezing drizzle potential into the morning hrs Monday. enhanced by a cold front.
A cold upper level trough across the northern Rockies through the Pacific Northwest will affect portions of the Great Basin during the early portion of the week. The associated cold front will sweep south into central Utah by Monday, bringing snow and colder temperatures to the northern half of Utah.
A strong upper level low will move SSE out of southwest Canada into the Pac NW today, spreading snow showers and more cold air into the area. This trough contains very cold air aloft, and this will remove much of the inversion by eroding away the warm air aloft. With the upper low remaining nearby through tomorrow, snow showers will continue to be scattered across the area throughout the short term period.
Lee troffing behind the initial system will bring a rebound in temperatures for the plains today. with readings warming back up into the lower 50s for the southern I-25 corridor/adjacent plains. suspect snow cover in the San Luis Valley and lack of much wind should hold temperatures down a little below freezing and have cooled maxT off accordingly. but could certainly see some blowing snow over the higher peaks tonight. Plains will remain dry tonight with some locally windy spots along the I-25 corridor thanks to lee trof. This should also help keep low temperatures on the warmer side.
A Pacific cold front will move through the region behind the shower and thunderstorm activity, resulting in drier conditions and gusty west winds. At this time, the tornado threat looks fairly low, with the higher potential to the east of our area.
905 AM EST Sun Jan 1 2017 High pressure will provide a dry start to the new year.
Monday will probably be the more difficult day to forecast sensible weather across western Kansas given potential for fog and stratus early, and followed by the advancing cold front coming from the northern High Plains.
1023 AM EST Sun Jan 1 2017 High pressure briefly builds over the region today.
At mid morning, a trough / stalled front bisected Middle Tennessee. The boundary will pivot slightly and weaken, allowing slightly warmer and more moist air to creep up from the south. An inverted trough is bisecting the mid state early this morning with IFR cigs occurring at all 3 terminals. Look for POP's to increase after 06Z, mainly south of I-40, as a warm front to our south begins to lift northward.
/Issued 214 AM CST Sun Jan 1 2017/ Current upper level short wave trough entering southwest Kansas will continue to move northeast and way from the panhandles this morning. Another upper level short wave trough currently over southern California will move east through the day and will pass just south of the panhandles tonight.
648 AM EST Sun Jan 1 2017 Watch out for black ice on untreated roads and bridges early this morning. The temperatures is falling below freezing this morning and untreated roads that may look wet may be icy. High pressure will provide a dry start to the new year.
1012 AM EST Sun Jan 1 2017 Widespread rain is expected today through Monday as a warm front advances northward into the region. Broad upper trough over the Great Lakes and Northeast States shifting to the northeast. Deep moisture spreading into the Southeastern States ahead of trough in the southern Plains. Models indicate a more southeast flow into the central Midlands suggesting warm front may move into the area but confidence not high for warmer temperatures. QPF amounts for the entire short term period are forecast around 1 to just over 2 inches with the highest amounts in the southwestern portion of the area. The latest models appear to indicate warm front will move into the area Monday. The front is expected to lift north across the area as a warm front late Monday or Monday night.
902 AM EST Sun Jan 1 2017 Warm front pushes northeast Sunday night into Monday night.
Some of this drizzle activity could encounter a sub-freezing airmass near and north of Kirksville for a couple of hours before sunrise, but any freezing drizzle would be brief before temperatures rise well above freezing after dawn.
429 AM CST Sun Jan 1 2017 First issue for today is the cold front dropping southeastward early this morning. Upper ridge exits MN/WI border late this afternoon, and first weak short wave arrives from the southwest.
At this time, the tornado threat looks fairly low, with the higher potential to the east of our area.
1046 AM EST Sun Jan 1 2017 A warm front stretches E-W across Central Alabama and Central Georgia. Widespread cloud cover with light showers/drizzle exists across the forecast area with strong low level isentropic lift to the north of the warm front. Chattanooga Airport, TN 53 51 63 57 / 50 80 80 90 Knoxville McGhee Tyson Airport, TN 53 48 63 56 / 40 70 70 90 Oak Ridge, TN 50 48 62 55 / 40 60 70 90 Tri Cities Airport, TN 52 45 62 50 / 50 50 70 80.
608 AM EST Sun Jan 1 2017 A weak cold front will move east across the state early this morning. A weak ridge of high pressure will build over our region this aft.
200 PM EST Fri Nov 11 2016 Gusty winds this afternoon diminish through tonight with high pressure bringing a dry weekend.
The next 24 hours will feature fast/zonal flow across Florida, as a short wave trough drops through the Ohio Valley and pushes a cold front across the SE CONUS and toward north Florida by early Saturday evening. Mostly clear skies with some thin cirrus this evening, followed by some increase in the high clouds per H50-30 layer RH progs. GFS/ECMWF show trough aloft well to the north forming a weak wave/low on stalled front Mon. Another shot of cooler/drier air will occur mid-late week behind this weather system, but not too cool with lows mostly in the 50s and highs in the 70s.
A cold front will continue to sink south this morning with high pressure building in from the northeast. Highs today will be cooler than compared to yesterday with values peaking in the mid to upper 50s. For tonight, winds will weaken as high pressure continues across the greater region. With said high pressure and weak winds, will continue with the freeze watch in the southeastern zones as is. For Saturday, high pressure will shift off to the east with weak lee troughing.
Winds were shifting to the NW and N behind the front and will usher in a cooler air mass for the weekend. Temperatures are in the lower to mid 60s except 70 at CHA where mixing. Tonight another cool night with frost possible northern third and higher elevations but did not issue frost advisory as most areas warmer than this morning.
Short Term Update - Weak ridging will remain to our north through the day and winds will remain generally light out of the northeast to east today, with some perturbations expected near the warming Florida Peninsula. Expect a rain free day due to stable conditions and ridging aloft. Weak ridging to our north will keep winds light out of the northeast to east across most Keys waters.
200 PM PST Fri Nov 11 2016 High pressure aloft will continue to bring warm and dry weather with above normal temperatures today, followed by minor cooling for Saturday.
319 PM CST Fri Nov 11 2016 The short term continues to be dominated by a quasi-stationary h500 ridge across the northern plains. The lee-side trough will move east and approach the Dakotas tonight and move into the western Dakotas Saturday afternoon.
1251 PM EST Fri Nov 11 2016 Issued at 12:44 PM EST Fri Nov 11 2016 With high pressure to the west, cooler air allowed for some clouds this afternoon, but these will dissipate heading into the evening. Continued cold air will advect into the region as strong surface anticyclone over south central Canada slides southeast into the Upper Mississippi Valley/western Upper Great Lakes by this evening. For tonight the ridge becomes elongated e-w through the southern Great Lakes and will allow for quick decouple/idyllic longwave radiant losses upon sunset. Initial upstream blocking pattern maintains high latitude northern belt with only dry/rather weak clipper features Mon evening/night and again Tue night. Thermal moderation to again above normal temps for much of the week, reinforced by midweek central CONUS ridging in advance of significant amplitude wave into west coast about Wed.
213 PM CST Fri Nov 11 2016 A quiet weather pattern continues across the area this afternoon, as high pressure builds south into the region behind a passing dry cold front. Temperatures will fall into the low to mid 30s tonight, with just a bit of passing high cloud cover. Winds will be light and easterly as the high moves overhead.
A weak cold front will move through the state but only a wind shift is anticipated. Clouds have kept temperatures warmer versus this time last night with readings generally in the lower 40s to lower 50s. High pressure over the northern high plains at this time will follow the front with a reinforcing shot of cool air accompanying it. Highs on Saturday will be roughly 10 degrees cooler versus today.
The short term continues to be dominated by a quasi-stationary h500 ridge across the northern plains. Friday will be cooler but above normal with highs from the 40s east to near 60 west. In the extended the h500 ridge will gradually flatten and allow a more progressive flow to enter the northern plains.
122 PM EST Fri Nov 11 2016 A cold front will cross the region this morning, bringing colder air and gusty winds this afternoon into Saturday. Low Pressure may bring unsettled conditions midweek. Cold front is moving toward the coast now, with winds right behind the front gusting to around 30KT (35 MPH). Showers are entering the north as a cold front crosses the region. High pressure moves in overnight.
Afternoon highs will only be in the 50s with freezing temperatures at some locales during the overnights.
1256 PM EST Fri Nov 11 2016 A strong cold front will bring a few light rain showers and gusty winds to New York today.
1250 PM EST Fri Nov 11 2016 Aviation A cold front has pushed through Lower Michigan overnight with cooler air flowing in from the north. Yesterday highs rose into the lower 60s in many areas, but today we will hold in the 40s to around 50. A dry weekend is expected with high temperatures in the lower to middle 50s. A quiet weather pattern is expected in the short term with upper level ridging in place much of the time. Ridging takes hold from tonight through Saturday night which will bring fair weather.
The rest of the forecast is in great shape with a dry cold front passing through the region this afternoon. /issued 346 AM CST Fri Nov 11 2016/ A cut-off upper-level cyclone continues to spin over the southern Rockies early this morning, detached from strong northwesterly flow aloft over the Great Lakes.
The upper level ridge currently over the Rockies, will shift east across the region through Saturday. The timing of the high crossing the area tonight will have an impact on the low temperatures. 00Z guidance is in agreement that the ridge will be south of the area after 12.
tilted mid level H5 closed low is situated over far West TX and Southern NM. Flow around this low is streaming ample moisture into the region. keeping us rather cool and cloudy across portions of the Lower RGV. rainfree conditions will not likely last long as the closed low begins to reorient itself and tilts more upright. The trough will slowly get absorbed by the mean flow and will eventually become an open wave late in the period.
A dry cold front was pushing southward across the central IL forecast area early this morning having reached the I-70 corridor as of 2 a. Following the cold front. lingering into the evening before dissipating as the high brings increased subsidence and disrupts the low level flow off the lake.
355 PM EST Fri Nov 11 2016 Upper trough is bringing cold air over the region today but as ridge builds across on Sat the warm air will quickly return. As the high crosses tonight and with a very dry airmass in place (pwats less than 0. 20 inches) and sfc dwpnts this aftn in the 20s, kept favoring low end of guidance tonight with mins near 20 inland and in the low-mid 30s along the Great Lakes. On Sat skies will be mostly sunny and temps will rebound into the low 50s. The higher winds will build waves over 10 feet for those areas which could result in minor beach erosion.
South of the high, over E Iowa/NW Illinois, northerly winds were steady between 10-15 mph and temps were in the 40s. Today: Cold air advection with N-NE sfc winds of 15-20 mph setting up a cooler day in the 50s - near mid November normals. It is a glancing shot of cooler air as the core of the 500mb height falls (~22 dam/12 hr) traverse the Northern and Eastern Great Lakes into the Northeast.
High High pressure will move overhead by around midnight tonight, then continue to head southward overnight into Saturday. It should be a decent radiational cooling setup for at least the first half of the night under the high, with winds picking up a bit later in the night as the high shifts south. Should see temps aloft recover on the back side of the high, allowing highs to reach 50 or the low 50s most places tomorrow afternoon.
In the immediate future, temperatures will be much cooler today than yesterday due to the cold frontal passage yesterday evening and overnight and continued cold air advection today. Highs will be roughly 20 degrees cooler today than yesterday ranging from the upper 40s to mid 50s, which believe it or not is about normal fort his time of the year. Other than a ribbon of mid-high level cloud cover to move through this morning/afternoon, high pressure will build in and dominate, resulting in clear skies and eventual return of southerly winds overnight tonight.
1140 AM CST Fri Nov 11 2016 A cold front will continue to move through Arkansas through the afternoon. A weak cold front will move through the state but only a wind shift is anticipated. Clouds have kept temperatures warmer versus this time last night with readings generally in the lower 40s to lower 50s. High pressure over the northern high plains at this time will follow the front with a reinforcing shot of cool air accompanying it. Highs on Saturday will be roughly 10 degrees cooler versus today.
330 PM EST Fri Nov 11 2016 A dry cold front will push southward through the area this evening.
Uupper lvl clouds across area will begin to decrease this eve as a weak cold front moves swd into the area, bringing vfr skc conditions overnight.
300 PM CST Fri Nov 11 2016 Overall, there was little change made to the short term forecast for Southeast Texas as a broad upper low remains centered near El Paso, with associated southwest flow aloft transporting mid and upper level Pacific moisture across the region. Otherwise, less cloud cover tonight will encourage more radiational cooling than what was observed this morning and allow overnight temperatures to fall into the low 50s to low 60s. With this frontal boundary remaining north of the region tomorrow, Saturday is expected to be a similar day to today with partly cloudy skies and highs in the low to mid 70s.
1252 PM EST Fri Nov 11 2016 A dry cold front will move across the area tonight, bringing the coldest air of the season for this weekend.
Synoptic Setup: A ridge axis runs from central California through Idaho, Montana, and into southern Saskatchewan. The ridge influence is spread out over the western half of the CONUS and central Canada. Al large trough sets over the Gulf of Alaska. Tonight through Saturday: Ridge axis will move overhead creating a strong center of high pressure aloft focus over eastern Montana. influence from this high pressure will maintain all the way through Saturday making for clear skies and dry warm conditions.
Early this morning a weak cold front stretched from the eastern Great Lakes to Indianapolis to St Louis and on into the central Plains. There will also likely be some cirrus streaming up from the lower Mississippi Valley, especially into southern Kentucky during the morning hours. Afternoon highs will be in the lower and middle 60s. Tonight and tomorrow Canadian high pressure will advance from the upper Mississippi Valley to the middle Ohio Valley giving us clear skies. Lows tonight will be around the freezing mark with highs on Saturday about 10 degrees cooler than what we see today.
1247 PM EST Fri Nov 11 2016 A strong, dry cold front will move through the area early this evening. Cool high pressure will build in from the northwest over the weekend.
A weak front will move across the area later today to reinforce cooler air. This will bring likely the coldest temperatures we have seen so far this season with highs on Saturday only in the 50s and Saturday night lows in the upper 20s out east to the lower 30s out west.
A cold front will continue to push south through the area today with a shift to north winds. /Issued 1048 AM CST Fri Nov 11 2016/ Cold front nearing I-44 corridor at present and will continue south through the rest of the day. VFR conditions will continue at all sites with a passing cold front today bringing only a wind shift. a weak cold front was positioned from New Mexico through Eastern Kansas. Cold air advection and northerly flow behind the front should help to keep afternoon temps slightly cooler compared to yesterday.
216 PM MST Fri Nov 11 2016 Massive ridge of high pressure remains in place over the region bringing mild and dry weather.
Expecting sunny skies and light winds today with the high pressure largely in control. For tonight, high pressure moves south of the area with southerly winds and warm air advection kicking back in.
147 PM EST Fri Nov 11 2016 A short lived cold front is crossing the state this afternoon bringing with it some gusty winds and drier air. High pressure will build into the region tonight with the region below freezing by Saturday morning.
The upper ridge currently over the region will be short-lived as a positively-tilted trough moves southward from the Ohio Valley tonight into Saturday.
An upper level low remains parked over Northern Mexico, West Texas, and Southern New Mexico this morning. Pacific moisture continues to stream into East Texas and Louisiana around the south and east of the upper low. Also, high pressure at the surface remains centered Texas. Highs for today are on the low end of guidance since cloud cover may hang around a bit longer than models are expected, however a few peeks of sun may occur during the afternoon. Through the next few days, the upper low will gradually weaken and then eject out into the plains. With the upper low to the west occasional bouts of high and mid lvl clouds will occur. At the surface, a cold front will move through the region Friday Night/Saturday Morning.
940 AM MST Fri Nov 11 2016 Some high cirrus clouds are drifting in over the area tonight as a low pressure system centered over the New Mexico and the Mexican border sends some upper level moisture into Colorado. With this in mind expect temperatures to be a few degrees cooler today, but still above normal for this time of year. Upper level ridge will once again rule the forecast on Saturday with dry weather and high temperatures well above average.
A cold front continues to shift southward this morning. Behind the front, there are cooler/more seasonable temperatures and breezy northerly winds.
Otherwise, made minor adjustments to temperatures and dew points based on observations with temperatures expected to rise into the low to mid 70s under partly to mostly cloudy skies.
343 PM EST Fri Nov 11 2016 A cold front has moved south of the region, and a dry area of high pressure is moving into the Ohio Valley from the north. This high will remain in place through the weekend, with no precipitation expected.
We will be under an upper level ridge for the short term forecast as a trough will be located far south into the far southern Plains, well south to ever directly affect our weather. We will continue to have some cold air advection today after a cold front moved through yesterday. At 12Z Saturday, upper level high pressure is expected to be centered over the Central Plains, while low pressure sits over southern NM/far west TX. Looks to be a gradual eastward shift to the pattern through the weekend, with the low pressure system sliding up into southeastern KS before moving off toward the midwest.
302 PM EST Fri Nov 11 2016 High pressure from the northern plains and upper midwest will move southeast across the Ohio Valley this weekend.
1223 PM CST Fri Nov 11 2016 High pressure means decreasing northerly winds with ample sunshine today.
The cool northerly flow across the Northland will gradually subside, and the cooler air will shift to the east. The sunny skies and warmer air moving into the Northland should help temperatures climb to the low to middle 40s. The southwest flow will increase even more Saturday, and bring substantially warmer air into the region. The low-level mixing, warmer air mass, and sunny and dry weather should help highs reach the lower 50s. A fast west to northwest flow aloft will occur across the region Saturday night into mid week with a deep trough moving into the western CONUS mid week.
Mid and high level cloudiness will continue to stream across the region downstream from the mid to upper level low near El Paso. 12Z CRP sounding indicated moisture was limited to the 700 to 500 mbs range with drier air intruding in the lower levels from the northeast. Expect this will continue through the afternoon with slightly lower chances for the coastal areas due to the drier air in the lower levels.
with a digging/ amplifying short wave trough over eastern Canada and the northeast quadrant of the U. downstream of a narrow anomalous (+2 to 3 standard deviations) ridge across the Intermountain West/western Canada with a cutoff low over the desert southwest. Northern extent of the upstream ridge will get flattened over the next 48 hours with short wave energy riding over the top.