Aikyam-Lab/Synoptic-Bench huggingface dataset:
This will allow for a moderating influence with winds off the relatively warmer Atlc waters. Highs should reach the lower 70s across the north to mid 70s across the south.
425 AM MST Sat Dec 31 2016 Cold front had pushed south across the plains and areas of stratus were developing along the Front Range as expected. Aloft, strong flow will continue through the week, varying from southwesterly on Sunday to westerly through the bulk of the week as an upper low slowly comes ashore over Oregon.
Looking to the central United States a low pressure system will continue to trek to the East pushing the high pressure system North of our area further to the East into the southwestern Atlantic Ocean.
Precipitation may start off as light snow along the highest parts of the Cumberland Plateau before 15Z, but will be all rain thereafter.
Skies have mostly cleared this morning, other than some stratus hanging in along the higher terrain. This has allowed temperatures to cool across the region and will promote some localized areas of freezing fog this morning. Otherwise, generally pleasant (though cooler) conditions are expected today ahead of the big weather change beginning late tonight. A strong arctic cold front will begin to push across the Continental Divide into northwest Montana early Sunday morning, gradually spreading southwestward through the day. This airmass will be met by an upper level low pressure system coming from the northwest. As these two systems collide, snow is expected to develop along and south of the surface cold front as it moves through the region. Of greater importance will be the gusty northeast to east winds which will develop as the cold front moves through the region.
954 AM CST Sat Dec 31 2016 A cold front is moving through southern WI this morning. A cold front will move through this morning and winds will become northwest. Wind gusts of 20 to 25 knots are expected through the day, with the highest gusts in the east. A Small Craft Advisory is in effect through early evening due to low pressure crossing the Upper Great Lakes.
502 AM EST Sat Dec 31 2016 Weak high pressure will provide fair weather this morning.
However, will carry slight chance of showers tonight along the I-10 corridor as upper level low(along the CA/AZ border) opens up and moves into Texas by Sunday morning. The lows will be in the mid to upper 30s across the Big Country to the 40s elsewhere by New Years Day morning.
Upper level low currently just off the coast and San Fran bay early this morning. Dry weather for tonight into early Sunday as high pressure briefly builds in with clearing skies for any New Year's Eve festivities.
The low levels of the atmosphere remain extremely dry as seen on the 12z sounding from OHX. Expect the profile of the low levels is similar further to the east. Chattanooga Airport, TN 46 41 53 49 / 50 80 70 60 Knoxville McGhee Tyson Airport, TN 44 40 53 48 / 30 70 60 50 Oak Ridge, TN 44 40 52 47 / 40 70 60 40 Tri Cities Airport, TN 47 37 52 42 / 20 70 60 50.
Trof beginning to carve out over the western states with upper low developing in the Great Basin. A reinforcing cold trof is expected to drop into the Pacific Northwest through the weekend bringing another surge of arctic air to the region. Cold front slips south of the border tonight with low level flow turning around to the northeast, then east on Sunday.
940 AM EST Sat Dec 31 2016 High pressure will build into the region today. Weak low pressure will approach from the west this afternoon and cross the region tonight. The low will move east Sunday.
A cold front will cross the region today, and winds will shift to the north/northwest. Today Through Saturday Night A cold front was pushing into northwest Arkansas early this morning, and was accompanied by showers/isolated thunderstorms. Farther northwest, cooler air will keep temperatures closer to seasonal. Readings this afternoon will range from the mid 60s in the northwest to the lower 90s in the southeast. High pressure and very dry air will build into the state from the Plains Saturday. Under the high, as winds diminish Saturday night, temperatures will drop into the 40s/lower 50s.
Freezing rain may also produces some ice accumulations of a few hundredths of an inch across northern Valley and Daniels County with other locations across the hi-line possibly receiving a little less. Freezing rain line continue to remain from Whitewater to Wolf Point to Sidney and areas north and east. GAH PREVIOUS SHORT TERM DISCUSSION: The large upper trough has moved off to our east, but is still influencing our temperatures by dragging colder air into Northeast Montana. There is another trough that is bringing wind and precipitation to the Pacific Northwest. This ridge will continue the dry conditions for the most part today but only a slight improvement to the temperatures, based on increasing heights. This action combined with the ridge will establish the stationary frontal boundary across the local region.
607 AM CDT Fri Oct 7 2016 Deep upper trough across the Upper Midwest this morning has resulted in cool temperatures across the area. With temps currently near freezing at KHON, will keep the freeze warning going there, but with warmer temps elsewhere than anticipated, will change the freeze warning to a frost advisory for this morning. Another cold night is expected tonight with temperatures approaching freezing in the highway 14 corridor.
748 AM EDT Fri Oct 7 2016 After a foggy start along the rivers, high pressure will bring a summer-like day to the region today, with temperatures in the 70s.
For the short term, concerns will focus on freezing temperatures ending the growing season Friday night and the possibility of light snow across the north. The upper low initially over southern Manitoba Friday morning is forecast to move northeast and out of the region by Friday night.
1201 PM EDT Fri Oct 7 2016 High pressure will gradually lose its grip on the area today and allow a cold front to move in from the west tonight and pass through the region Saturday.
659 AM CDT FRI OCT 7 2016 A decent short wave will move thru the region today dragging an assoc cold front thru the area. This activity is assoc with a cold front that will push thru the CWA today. Temps in S cntrl IA as of 3 AM were in the mid/upper 40s and this is the air mass that is fcst to advect into the region behind the cold front. highs will struggle to reach the lower 60s across the nthrn FA.
However, a convective cluster out ahead of a cold front movg south across OK will bring an area of scattered but dissipating showers into the Red River valley. Lgt winds to shift from n-ne out ahead of the cold front, with northerly winds increasing to around 10 kts and gusty later in day with fropa. /issued 223 AM CDT Fri Oct 7 2016/ Cold front currently moving across the Red River of North Texas and portions of eastern Oklahoma this morning. With a lack of moisture across the region, cold front will move across the region without any discernible convection.
Warm and dry weather will continue through the rest of today, with the main thrust of the cold front expected to push through the forecast area starting around 9-10 pm tonight. A dry cold front will move through the region late tonight. The cold front that we have been talking about for nearly a week will arrive through the ArkLaMiss region later tonight into Saturday.
959 AM EDT Fri Oct 7 2016 High pressure will bring dry conditions and mild temperatures through tonight.
Scattered thunderstorms will be possible within the vicinity of the LRD terminal ahead of a weak cold front moving through South Texas tonight. An upper level trough will move across the Central Plains today, sending a cold front south into South Texas overnight tonight. The higher moisture axis that has been positioned over the coastal waters and eastern counties will shift further west over the Brush Country and Rio Grande Plains today ahead of the approaching cold front. A dry forecast is then in store for Saturday with high pressure settling over the state.
1233 PM EDT Fri Oct 7 2016 An approaching cold front will bring rain to the area later today through Saturday morning.
Early this morning, precipitation focused along the cold front had shifted east of the forecast area, with breezy northwesterly winds behind the front ushering much cooler air into the region. With the mid-level trough axis moving eastward across the CWA, the lingering stratus will gradually diminish from west to east this morning. Wind speeds will diminish through the day as the center of the high tracks over the CWA into the evening hours. However, models show the center of the high shifting east enough to shift winds to the south and southeast this evening and overnight. Slightly cooler conditions may be present in low-lying areas, so with light winds present cannot rule out the potential for some patchy frost development. A zonal upper flow pattern dominated by high pressure at the surface will persist through the weekend.
Cold front now located in the hill country will continue toward the area and pass through late in the evneing into the overnight hours. Scattered thunderstorms will be possible within the vicinity of the LRD terminal ahead of a weak cold front moving through South Texas tonight. An upper level trough will move across the Central Plains today, sending a cold front south into South Texas overnight tonight. The higher moisture axis that has been positioned over the coastal waters and eastern counties will shift further west over the Brush Country and Rio Grande Plains today ahead of the approaching cold front. A dry forecast is then in store for Saturday with high pressure settling over the state.
1251 PM EDT Fri Oct 7 2016 High pressure will remain across the area today and tonight then move east on Saturday.
735 AM EDT Fri Oct 7 2016 High pressure will gradually lose its grip on the area today leading to a cold front that will move through the region Saturday.
strong upper low continues to move through southern BC today with onshore flow across the forecast area.
1109 AM CDT FRI OCT 7 2016 Rain has more or less ended across far southern and eastern areas with a drier airmass continuing to advect in behind cold front. /Issued 331 AM CDT FRI OCT 7 2016/ Cold front has pushed through most of Oklahoma this morning. High temps will be a good 15-20 degrees cooler today behind the front with gusty north winds. Most locations will be in the 40s with the cooler sites in the upper 30s.
630 AM CDT Fri Oct 7 2016 A strong cold front is beginning to move into the region from the northwest as of 2 AM, and will continue to push through the area this morning. Dewpoints will tank this afternoon into the 40s as high pressure starts to build into the area. This will set the stage for a chilly night, with low temperatures in the low 40s for most.
932 AM EDT Fri Oct 7 2016 High pressure over the northeast remains in place through tonight. Low pressure over Ontario will move eastward and its attached cold front will move across the area on Saturday, as Hurricane Matthew moves up the southeastern United States coast.
This should help bring cigs into IFR with further improvement to MVFR around 17Z as the cold front moves through. A cold front is forecast to push across the area late this morning into the afternoon hours. The cold front is expected to exit South-Central Texas later this afternoon/early evening. Highs will be few degrees cooler than previous days.
A cold front moving through today and tonight will give small chances for showers across mainly the northern counties and usher in cooler temperatures behind it. Then dry weather is expected with upper ridging moving across the area and near normal temperatures. The upper ridge will move off to the east by mid week and this could allow rain chances to move back in. A cold front will move in from the west later this afternoon and evening. Expecting a few degrees cooler than yesterday given some mid and high cloud cover will be arriving ahead of the front and inhibit warming during the afternoon. An upper trough moving through Saturday behind the cold frontal passage of Friday evening will bring cooler temperatures to the area with highs only in the 60s and lows Saturday night in the mid 40s.
1146 AM CDT Fri Oct 7 2016 Deep upper trough across the Upper Midwest this morning has resulted in cool temperatures across the area. With temps currently near freezing at KHON, will keep the freeze warning going there, but with warmer temps elsewhere than anticipated, will change the freeze warning to a frost advisory for this morning. Another cold night is expected tonight with temperatures approaching freezing in the highway 14 corridor.
An area of low pressure is weakening over southern British Columbia today. The low is filling over southern B. The blustery weather will settle down as the low continues to fill-- pressure gradients peaked before daybreak and are gradually coming down.
Gusts to 30 kts possible over the higher terrain of Baker County Oregon and west- central Idaho.
/Issued 333 AM CDT FRI OCT 7 2016/ A surface and upper ridge will prevail over the Panhandles today through tonight before moving east away from the forecast area by late Saturday.
As of 11Z this morning, the cold front has moved through all but FST however the cold front will move through by 12Z. /issued 349 AM CDT FRI OCT 7 2016/ Upper trough passing over the Central Plains this morning has pushed a cold front southward. As the trough passes off to the east the ridge will build back across the region with mild wx for the rest of the coming week. Yesterday the highs were in the 90s across most of the area with a regional high of 102 degrees at Rio Grande Village. However that is changing soon as a cold front is moving through.
Be alert for slick spots on bridges/over-passes as well. This will bring some warmer temperatures, although still slightly below normal today, then nearing normal tomorrow.
623 AM CDT FRI OCT 7 2016 /12Z TAFS/ A strong cold front is currently moving through the CWA. /issued 330 AM CDT FRI OCT 7 2016/ (Today and Tonight) The cold front that has been advertised for several days now was approaching the I-20 corridor in the Big Country this morning as of 230 AM. We will be much cooler overall, but models have varied on how much influence low clouds will have on highs. The NAM has been consistently cooler with more low cloud coverage, but the latest LAMP guidance has trended this direction. Thus, will not go quite as cool as the NAM, but cooler than the MAV guidance overall. Highs should range from the lower 60s north of I-20 to the upper 70s south of I-10.
Borderline freezing temps last night so most sites within and west of the valley did not see a true freeze. The upper low continues to rotate over southern Canada, with another vort lobe on the southern edge currently moving through the CWA. Tonight, northwesterly flow aloft sets up behind the upper trough.
/issued 339 AM CDT FRI OCT 7 2016/ The warm start to October has come to an abrupt end as a seasonably strong cold front has swept southward through the area. As of 08Z the cold front had cleared the CWA and was stretching roughly from Andrews to Abilene and moving steadily southward. Gusty northerly winds sustained at 20 to 25 mph with gusts to 40 mph has been carrying in cooler and drier air, with temperatures falling into the 40s and 50s and dewpoints dipping into the 30s. Most spots should see highs peak in the lower to middle 60s, though the exact number will be determined by exactly how much insolation each location receives.
928 AM EDT Fri Oct 7 2016 An approaching cold front will bring rain to the area later today through Saturday morning.
614 AM CDT FRI OCT 7 2016 A cold front poised just west of the Mississippi River early this morning will continue to move eastward today.
1043 AM EDT Fri Oct 7 2016 High pressure and a seasonably warm airmass will remain in place across the area today. A cold front will push east across the region tonight, ushering in a cooler airmass for the weekend. Highs today should make the lower 80s again today.
A broken line of showers is continuing along a wind shift associated with a cold front moving into the area. This should help bring cigs into IFR with further improvement to MVFR around 17Z as the cold front moves through. A cold front is forecast to push across the area late this morning into the afternoon hours. The cold front is expected to exit South-Central Texas later this afternoon/early evening. Highs will be few degrees cooler than previous days.
Meanwhile, a weak upper level ridge of high pressure is transitioning eastward across the Intermountain West. Near the surface, a broad area of high pressure is drifting eastward across western Kansas. The cold front that moved through the area yesterday will continue to slide south into Oklahoma and Texas. Meanwhile, the dome of high pressure behind this front will move into eastern Kansas by this afternoon.
Did raise winds up a bit over our eastern areas and the higher elevations to reflect the tightening pressure gradient caused by Matthew. Chattanooga Airport, TN 85 64 80 51 / 10 10 0 0 Knoxville McGhee Tyson Airport, TN 82 62 76 49 / 10 20 20 0 Oak Ridge, TN 83 61 77 48 / 10 10 10 0 Tri Cities Airport, TN 75 62 72 44 / 40 50 50 0.
958 AM EDT Fri Oct 7 2016 High pressure will remain across the area today and tonight then move east on Saturday.
1034 AM EDT Fri Oct 7 2016 High pressure will bring a summer like day to the region today, with temperatures in the 70s.
AMA and LBB in north Texas currently has upper 40s behind our next cold front.
High pressure aloft is taking hold again. however a weak cold front will work its way across Deep South Texas by early Saturday morning towards the end of this period. Moistening of the lower atmosphere will continue as winds become more easterly through the column. A 500mb ridge of high pressure will build across Texas and Northern Mexico. a weak cold front is sinking south across the Panhandles region. and over the lower river valley on Saturday as one more surface inflection interacts with the cold front.
Otherwise, the rest of the day will have mostly clear skies area-wide with temperatures warming into the low to mid 60s across the Plains and 40s to low 50s in the high country. Much drier air moving over northern Colorado today, but between yesterday's rain and the east winds last evening a bit of low level moisture remains in the low lying areas north of Denver.
Otherwise, ridging influences sfc/aloft will result in VFR/SKC conditions thru 08/12Z with some passing patches of ci possible mainly after 08/00Z.
1231 PM CDT Tue Oct 25 2016 Surface to mid-level ridge of high pressure over the region early this morning with increasing mid/high level clouds streaming in per IR satellite imagery. This mid/high level cloud was in response to increasing 850-700mb isentropic lift/moisture transport ahead of low pressure moving out of the Northern Rockies. A dry lower level airmass will be in place as the ridge of high pressure shifts slowly east, so a lot of this lift will go into cloud production with perhaps a few showers mainly west of the Mississippi River. Rain moves out Wednesday night as the low pulls toward lower MI/Indiana.
An upper-level disturbance will help push a weak cold front into northwest Oklahoma tomorrow morning. Winds will diminish or become light/variable in the vicinity of the cold front tomorrow morning across northwest Oklahoma, and a slightly weaker pressure gradient will lead to lighter winds in general elsewhere. After Wednesday, a mid and upper ridge centered over northern Mexico will build east into Texas and the Southern Plains.
452 PM EDT Tue Oct 25 2016 Seasonably cool and dry air expected Wednesday as high pressure remains across the area.
324 PM MDT Tue Oct 25 2016 Trough continues to move east with skies clearing from Denver northward. It looks like precipitation is now mainly over the highest ridges. With that and a little cold advection tonight, there will be a cooler start to the day on Wednesday, so despite the sun it will not get much warmer than today.
156 PM EDT Tue Oct 25 2016 Seasonably cool and dry air expected on Wednesday as high pressure remains across the area.
555 PM CDT Tue Oct 25 2016 The mild Autumn weather will continue tonight into Wednesday as a cold front approaches the region. Scattered convection will develop across the Plains tonight as the low level jet interacts with the front.
Temperatures will be a little warmer this afternoon compared to yesterday, as they top out in the low and middle 80s.
506 PM EDT Tue Oct 25 2016 High pressure will remain over the region through Wednesday night.
1238 PM CDT Tue Oct 25 2016 Forecast highlights the next 7-10 days: Warmer than normal temperatures through much of the period, and precipitation chances this evening through Wednesday morning.
Tonight Through Wednesday A short wave low pressure trough in west flow aloft over the area will move from Idaho east across the area tonight bringing showers to much of the west and north mountain areas with isolated evening thunderstorms possible. After the low pressure trough passes tonight. a broad high pressure ridge will move in behind the trough bringing a dry stable air mass to the area.
Upper ridge continues to build this way from southern plains while surface ridging remains across the area. Good flying weather next 24 hours as both surface and upper ridging dominates our region.
Main story for this period will be low pressure system moving east across lower lakes which will spread precipitation across the area. However by late night, warm advection flow will begin to bring in warmer air from the S/W.
450 PM EDT Tue Oct 25 2016 20z sfc analysis shows high pressure moving through the Ohio Valley. The cool high to the north and good sunshine yielded temps ranging from the lower 70s south to low 60s north this afternoon. Dewpoints, meanwhile, were able to mix down into the low to mid 30s most places, but many spots did see some 20s. The models are in good agreement aloft through the short term portion of the forecast as they all bring a developing trough into the Great Lakes by Wednesday evening.
Temps are running a bit cooler today compared to yesterday, but winds will slowly start to turn out of the south and we will warm up a bit more tomorrow. The upper level ridge over the SE US will weaken and move east as a trough and associated low pressure system move through the Ohio Valley.
Following this system, high pressure will rebuild over New Mexico bringing generally clear and dry conditions.
317 PM EDT Tue Oct 25 2016 Low pressure will linger in the Maritimes through Wednesday. A narrow ridge of high pressure will build in from the west Wednesday afternoon through Wednesday night.
This appears to be due, initially, to tonight's convection pulling the height falls in the higher resolution runs further north while synoptic-scale forcing dominates the low track in the global models. As strong isentropic ascent ramps up within the classic right entrance region over SE Michigan and system relative fgen becomes increasingly focused in the lower portion of the troposphere, the exact position of the attendant warm front will be important as it will largely dictate how wet/dry our southern counties are during Wednesday afternoon.
Boating Conditions Will Deteriorate Tonight through Late Strong high pressure will continue to build down the eastern seaboard and lead to a gradual increase in onshore flow overnight. Min temps ranging from the low 60s across the far interior (Lake) to around 70 along the immediate coastline.
149 PM EDT Tue Oct 25 2016 High pressure through Wednesday.
This should be enough forcing to help saturate the low levels enough for scattered rain showers to develop, although it will still be spotty. Between 10 pm and especially midnight, steady rain will spread into Madison due to deep saturation, stronger differential vorticity advection, 925-850 frontogenesis, persistent strong 700mb frontogenesis, and the nose of the low level jet. East winds will increase rapidly Wednesday morning as the low approaches.
636 PM EDT Tue Oct 25 2016 High pressure will keep dry weather over the region through tomorrow morning.