Aikyam-Lab/Synoptic-Bench huggingface dataset:
A little breezy with maybe a sprinkle or two north late this afternoon into the early evening behind the cold front that has now cleared the James River Valley. We leaned toward the cooler side of guidance tonight, especially west as winds will diminish and clouds thin out. An upper level trough taking shape over the northwest U. The aforementioned upper level trough tracks across the northern Rockies and northern Plains Friday night through Saturday night. Strong QG forcing swings across this area during the same timeframe, associated with the upper level trough. An increase in low/mid level clouds will initiate from west to east this TAF period as a warm front slides through.
639 AM EDT Fri Oct 13 2017 A weak surface boundary just south of the CSRA will remain in place and weaken through the day as ridging overtakes the region. High pressure ridge will be over the region through the weekend keeping dry conditions in place.
/issued 239 PM CDT Thu Oct 12 2017/ An elongated upper ridge will be centered over the lower Mississippi Valley with southwest flow aloft across our region to close out the week.
654 AM EDT Fri Oct 13 2017 High pressure over the northeastern states will slink off into the northern Atlantic tonight and Saturday.
449 AM EDT Fri Oct 13 2017 High pressure over the northeastern states will slink off into the northern Atlantic tonight and Saturday.
/Issued 253 AM CDT Fri Oct 13 2017/ The unseasonably warm weather will continue for the next couple of days ahead of a strong cold front that will move through the area Saturday night. Low level moisture will continue to increase ahead of system with moderate instability developing in a narrow corridor along/ahead of cold front.
524 AM CDT Fri Oct 13 2017 Upper level ridge becoming more centralized over eastern Texas and the Deep South today. As the high stabilizes itself over the Gulf Coast an upper level trough begins to dig southeastward towards the area on Saturday. The trough axis will remain just far enough to the northwest to allow a Pacific moisture and a Pacific front to develop ahead of the upper level trough. As the upper level trough continues to drive eastward it will drive a Canadian front which will overtake the Pacific front.
Southwest surface winds around 10 kt expected until a cold front causes a temporary shift to northwest. A cold front will move across the GUY and DHT TAF sites switching the wind around to the north. A cold front will begin moving into the northern zones Saturday afternoon, then across rest of the fcst area Saturday evening, with much drier air invading from the northwest after frontal passage.
Despite afternoon sunshine and a S/SE breeze, shallow mixing up to only 950mb will keep temperatures slightly cooler than previously forecast. with highs mainly in the lower to middle 70s. A slow-moving cold front currently extending from Minnesota W/SW to Colorado will begin to approach from the northwest tonight. to the lower 60s along/west of I-55. then will shift slightly northward during the day Saturday as low pressure approaches from the southwest.
322 AM EDT Fri Oct 13 2017 High pressure will retreat into the maritimes today. A cold front will approach from the west tonight before dropping south into northern New England on Saturday and stalling.
335 AM CDT Fri Oct 13 2017 Surface ridging will provide generally quiet weather today and tonight, with not really any impacts expected. Day time temperature will be cooler than yesterday, but still went a bit warmer than guidance considering recent model biases and solar expected.
253 AM EDT Fri Oct 13 2017 High pressure over the northeastern states will slink off into the northern Atlantic tonight.
328 AM CDT Fri Oct 13 2017 A couple more hot days before a strong cold front and a chance of rain arrive this weekend. Upper ridging aloft will continue to keep things very warm across the area today and Saturday.
Cannot rule out having to add a few more counties to the advisory as the morning wears on, especially if the low stratus that has developed across the Brazos Valley is able to build down. Expect the fog to begin lifting after sunrise with a very warm day on tap for Southeast Texas as a mid/upper level ridge remains anchored over the Gulf coast states. Not only will this ridge promote high temperatures in the upper 80s to low 90s across the region, but it will keep dry weather in place across the region. Morning lows in the upper 60s to upper 70s should warm into the upper 80s to low 90s again as ridging aloft shifts slightly towards the east but maintains most of its influence over the region.
343 AM CDT Fri Oct 13 2017 An upper high over the northwest Gulf states will continue to provide a southwesterly flow aloft across the Panhandles. A cold front over southwest Kansas and southeastern Colorado will push slowly south into the Oklahoma and northern half of the Texas Panhandles today before becoming stationary by late today. The frontal boundary is expected to lift back to the north and east, just north of the forecast area, tonight as a warm front before surging south again as a cold front by late Saturday and Saturday evening. The cold front will push through all of the forecast area by late Saturday evening and Saturday night. An upper trough will approach the Panhandles by Saturday and Saturday night and possibly some isolated convection might develop late tonight over portions of the forecast area.
However, this feature will shift rapidly SE of the during the day as high pressure strengthens over WY/NE and extends S/SSE into KS, and meager chances for light rain along/east of Hwy 283 will end by 12-15Z. Sun-Sun Night: Expect seasonably cool/dry conditions associated with high pressure over the region.
546 AM CDT Fri Oct 13 2017 Early this morning a cold front was along a line from New Ulm, northeast to the western part of the Twin Cities, and near Mora. A trough will approach from the Rockies early Saturday and spawn an area of low pressure over the central Plains. As the system encounters moistening isentropic upglide over the Midwest, rain is expected to develop rapidly along a quasi stationary front to the south along I-80 and along the leading edge of the trough over the Dakotas Saturday morning.
Meanwhile an upper level ridge was centered over the Lower MS Valley region and extended across the eastern Conus.
425 AM EDT Fri Oct 13 2017 A weak surface boundary across the forecast area will remain in place and weaken through the day as ridging overtakes the region. High pressure ridge will be over the region through the weekend keeping dry conditions in place.
As of this writing, many Valley locales are in the lower to mid 40s.
642 AM EDT Fri Oct 13 2017 High pressure over New England will give a dry and at least partly sunny day today. Clouds will increase again Friday, and perhaps even a bit of light rain or drizzle will visit some areas late Friday into early Saturday as a warm front passes. This is helping suppress the clouds to the south and west, but moisture coming in off the Atlantic in the delmarva is trying to wrap around the high and push northward. This makes the cloud forecast a bit tricky as the lower sun angle is less effective each day in mixing out any low clouds. Enough Atlantic moisture may slip in for a few sprinkles over the extreme south late tonight into early Saturday, but models have backed off on the precipitation the warm front is able to generate.
A trough will sag southeast into the area. We get into a decent surge of mostly elevated warm and moist air advection this afternoon into tonight across a tightening 850mb baroclinic zone with the nose of the low level jet pointing into southern Wisconsin. The right entrance region of the upper jet will slide into southern WI on Sat as a mid level trough digs through the central Rockies. The cold front is expected to move southeast through southern WI between midnight and 3 am Saturday night.
However, this feature will shift rapidly E/SE during the day as high pressure strengthens over WY/NE and extends S/SSE into KS. Meager chances for light rain along/east of Hwy 283 will end shortly after ~12Z as warm advection ceases and the aforementioned baroclinic zone progresses into central/southern KS as a cold front. Sun-Sun Night: Expect seasonably cool/dry conditions associated with high pressure over the region.
strong upper level trough with associated short wave and northerly jet moving across the Pacific northwest. The upper trough will still be over the region Friday with very cold air aloft. GraduaL clearing Friday night as the trough moves east into Idaho. Upper ridge builds in Saturday with mostly sunny skies. Scattered showers will continue overnight into Friday with a cold upper level trough over the region.
Today Through Saturday GOES16 WV imagery continues to show a well defined ridge of high pressure located over the south-central CONUS. Low level moisture will gradually increase each day, but the aforementioned ridging will suppress any convection.
A deep trough exists over the western US with strong mid to upper level southwesterly flow. This is leading to a strong lee side trough with strong southerly surface winds as a result through the central and eastern Plains. The high amount of moisture available for storms to work with may lead to localized flash flood threat.
306 AM EDT Fri Oct 13 2017 Building high pressure should maintain mainly dry weather through Saturday.
High pressure to the north will enhance the E/NE flow and produce breezy conditions esp at the coast.
1156 PM MDT Thu Oct 12 2017 High pressure will be over the area tonight. A Pacific low pressure trough will move east bringing increased snow shower activity over northwest mountain areas through Friday and Friday night. A cold front will move through the area with the Pacific trough on Saturday with colder temperatures and decreasing snow showers and wind through the day Saturday.
Broken to scattered VFR clouds may linger through the day as a southerly flow of moist air continued in the low levels.
The trough and low pressure center associated with the current weather system will continue to move into the region today, so widespread shower activity is likely through much of the day. Behind the cold front this evening, the flow pattern will shift northwesterly, and while shower intensity will decrease, this flow pattern is notorious for persistent cloud cover and light snow.
540 AM EDT Fri Oct 13 2017 Building high pressure should maintain mainly dry weather through Saturday.
408 AM CDT Fri Oct 13 2017 Early this morning a cold front was along a line from New Ulm, northeast to the western part of the Twin Cities, and near Mora. A trough will approach from the Rockies early Saturday and spawn an area of low pressure over the central Plains. As the system encounters moistening isentropic upglide over the Midwest, rain is expected to develop rapidly along a quasi stationary front to the south along I-80 and along the leading edge of the trough over the Dakotas Saturday morning.
The large large mid-to-upper level ridge centered over MS will remain nearly stationary through the short term, which will provide a dry northerly flow at and above 700 mb. In the low levels, the surface to 850 mb ridge located east of the mountains will provide a southerly flow of moisture off the Atlantic into GA, with some moisture creeping up into the southern TN Valley today. Mild temps in the lower 80s will continue today.
High pressure will allow for dry conditions for Friday and Saturday.
So, despite highs in the upper 80s to lower 90s today, it won't feel so oppressive due to the lower dewpoints and humidity. Deep layer ridging will remain draped across the southeast US with a weakening front hanging around today.
A weak decaying cold front is stalling out over the region. Deep layer high pressure will continue to drive the region's weather through the short term period. Drier air underneath the passing ridge axis to the north will filter into the region, as mid-level flow becomes northeasterly along the eastern periphery of the high. Expect high temperatures in the low 90s on Friday, with upper 80s to near 90 Saturday, and lows overnight in the upper 60s to low 70s.
102 AM EDT Fri Oct 13 2017 High pressure will cross the area tonight then move east of the region Friday. A cold front will approach from the northwest Friday night and move into the area on Saturday. The high will move to the east into the Atlantic tomorrow and keep clear skies over the region.
The cold front that moved across the state overnight has cooled temperatures quite a bit, and the cooling trend will continue with today's high temperatures 10-15 degrees cooler across the Plains and 5-7 degrees cooler in mountains. Models show a southwesterly jet maximum over the forecast area on Saturday as an upper trough will push eastward across Colorado through the day into the evening. The upper axis of the trough is over the eastern border by 06Z Saturday night.
119 AM EDT Fri Oct 13 2017 Building high pressure should maintain mainly dry weather through Saturday.
155 AM MDT Fri Oct 13 2017 Broad upper trough covers much of the western CONUS, with ridging over the east. At the surface, high pressure rests over the northern plains. The upper trough will dig into the Rockies tonight, and a cold front will begin crossing the region. Chances for rain/snow showers will increase early Saturday morning and continue into the afternoon, but dry weather is expected by the evening as the trough quickly moves through the northern plains.
Expect cloud cover to diminish gradually through Friday, especially south of US 30 as high pressure briefly settles over the area. Saturday will be much warmer, with highs climbing into the mid-upper 70's.
Tomorrow, an almost exact duplicate of today so get out there and get a jump on the weekend if possible! The jet stream will start diving down from the northwest Friday night into Saturday and will cause an upper level trough to deepen somewhat and shift eastward. Model runs remain in good agreement that the surface cold front will stay mostly dry as it moves across the Wyoming and Colorado border Saturday.
312 AM CDT Fri Oct 13 2017 The low clouds are shrinking quickly about the Wabash River, and should clear the entire area by daybreak.
Clouds could hold for a time over southern IN before clearing out resulting in a nice weather day areawide with highs in the lower and mid 70s. Pesky stratus deck has dominated the weather today in the absence of any strong surface pressure gradient to help scour out the low levels. Expect the low clouds to hang on well into the evening, with just partial clearing in southern Indiana and north-central Kentucky, but a build-down or even some fog in south-central Kentucky where the 925mb moisture is more solid. Still have a strong inversion between 900-850mb to limit the depth of mixing, so Friday max temps will top out in the lower/mid 70s, which is actually just slightly above climo and splits the difference between the bullish GFS MOS temps and the pessimistic NAM MOS.
500 AM EDT Fri Oct 13 2017 Water vapor imagery highlights a barbell shaped upper level trough across the basin. A mean layer anticyclone centered over the northwestern Gulf Coast is mostly responsible for the deep layer of northeasterlies sampled by last evening's KKEY RAOB, corroborated by the current (uncontaminated) slices of the KBYX VWP. Most island communities received several rounds of rain overnight, although the Lower Keys have been the wettest.
A quiet night across the Tennessee Valley and Southern Appalachians this evening, with high pressure built in at the surface and aloft. A light NW flow will continue to filter in drier air into the region, especially over the Shoals and NW Alabama, where dewpoints are progged to drop off into the lower 50s. The combination of the cool, dry air mass and light winds will allow temperatures to fall from the 60s this evening into the low to mid 50s by early Friday morning. Given the warm water temperatures (and the surrounding cooler land), am expecting a good possibility for patchy steam fog to develop later tonight along rivers/lakes.
646 AM EDT Fri Oct 13 2017 High pressure will retreat into the maritimes today. A cold front will approach from the west tonight before dropping south into northern New England on Saturday and stalling.
425 AM CDT Fri Oct 13 2017 Warm and dry conditions to prevail over the Midsouth today and Saturday, under the northern periphery of a 5930m 500mb ridge extending from the lower MS River valley to the southern Atlantic seaboard.
323 AM CDT Fri Oct 13 2017 Not much change is expected in our prevailing weather today and tonight as upper ridging has a firm grip over our region(as well as the rest of the southeast United States). Temperatures will be a few degrees warmer than yesterday and this will be a trend that should continue through the weekend. Moisture will slowly return to the region as dewpoints rise into the lower 60s by this evening, and even some upper 60s in the Pine Belt. Overnight lows will be in the lower to mid 60s across the region tonight.
Possible that this could be a weak cold front. The main cold front that is not too far north of our area will push through the area tonight. Depending on the location, the cold air advection and cloud cover will lower the high temperatures 10 to 20 degrees. Friday night and Saturday: A cold front and associated theta-e boundary will approach the region Friday night and Saturday.
341 AM CDT Fri Oct 13 2017 A cold front is slowly working through the forecast area this morning, currently stretching from Concordia to north of Hays.
253 AM CDT Fri Oct 13 2017 The unseasonably warm weather will continue for the next couple of days ahead of a strong cold front that will move through the area Saturday night. Low level moisture will continue to increase ahead of system with moderate instability developing in a narrow corridor along/ahead of cold front.
415 AM CDT Fri Oct 13 2017 Deep layer ridging to continue prevailing across the region today, yielding another afternoon of well above normal (and in some cases near record) high temperatures. Global models depict the ridge beginning to erode tomorrow as an upper trof translates through the Rockies and into the Plains, though another afternoon of very warm temperatures is expected SAT afternoon.
/28/ Not much change is expected in our prevailing weather today and tonight as upper ridging has a firm grip over our region(as well as the rest of the southeast United States). Temperatures will be a few degrees warmer than yesterday and this will be a trend that should continue through the weekend. Moisture will slowly return to the region as dewpoints rise into the lower 60s by this evening, and even some upper 60s in the Pine Belt. Overnight lows will be in the lower to mid 60s across the region tonight.
344 AM EDT Fri Oct 13 2017 High pressure over New England will give a dry and at least partly sunny day today. Clouds will increase again Friday, and perhaps even a bit of light rain or drizzle will visit some areas late Friday into early Saturday as a warm front passes. This is helping suppress the clouds to the south and west, but moisture coming in off the Atlantic in the delmarva is trying to wrap around the high and push northward. This makes the cloud forecast a bit tricky as the lower sun angle is less effective each day in mixing out any low clouds. Enough Atlantic moisture may slip in for a few sprinkles over the extreme south late tonight into early Saturday, but models have backed off on the precipitation the warm front is able to generate.
432 AM EDT Fri Oct 13 2017 A weak surface boundary across the forecast area will remain in place and weaken through the day as ridging overtakes the region. High pressure ridge will be over the region through the weekend keeping dry conditions in place.
Clouds will diminish some this afternoon especially south of US 30 as high pressure briefly settles over the area. Much warmer weather is expected for Saturday with highs climbing into the mid- upper 70's.
/ISSUED 522 AM CST Mon Jan 22 2018/ The cold front has moved off to the east and drier air is moving into the region. The cold front has moved east of the I-35 corridor and will continue through the remainder of the southeast CWA before sunrise. Highs in the low to mid 60s across the Hill Country and upper 60s to around 70 elsewhere. Highs rebound back into the low to mid 60s Tuesday under mostly sunny skies.
229 PM EST Mon Jan 22 2018 Upper low and better short wave energy lifting north and east of the state as we head into the evening. Still expecting a fairly sharp cold front and associated low-level lift to sweep through tonight. Cold front should be exiting the forecast area early Tuesday morning taking the precipitation with it.
Behind the front, cooler and drier air filtering across the region, along with clearing skies. This band is occurring along a pre-frontal trough that extends from central LA southwest to near Galveston. Cooler temperatures follow behind the front along with a sharp drop in dewpoints. Convection was being aided by good divergence aloft southeast of a large upper level low pres system over KS. A strong 130 KT jet streak transiting the base of the trough is helping accelerate the system eastward early this morning.
343 PM EST Mon Jan 22 2018 Mature dry slot has been fully entrained into the stacked cyclone presently situated over Iowa at 20z.
450 PM EST Mon Jan 22 2018 Unseasonably warm conditions are expected until the passage of a cold front tonight. Line of showers associated with a wave out ahead of the cold front will slowly make progress toward the region.
Temperatures may still be at or slightly above freezing in these areas, but higher precipitation rates should induce dynamic cooling and a change over to mostly snow. In general, the northwest forecast area should continue to see snow, but may mix at times with rain or freezing rain. With temperatures looking warmer in the transition zone, icing should be limited from a glaze up to a tenth of an inch.
An occluding low pressure system will progress across the lower Great Lakes through Tuesday. The associated warm frontal zone should hold steady along the Wisconsin/Illinois border, with some warmer temperatures sneaking into the far south. Our attention then turns towards tonight, as the low pressure system pulls away to our east. Current model solutions place the highest QPF across our southeast, where a Winter Weather Advisory for impacts was issued. Temperatures will fall below freezing late tonight, and will remain there tomorrow.
Gusts to 35 mph may continue for a few hours during the evening across northwest Arkansas, especially in the higher terrain.
Late morning surface analysis shows the surface cold front making its way across central portions of MS and into southeast LA. MVFR to localized IFR ceilings will impact the region this afternoon ahead of an approaching cold front.
A weather system passing north of the area will then bring cooler air and gusty winds late in the week. Another cold night tonight with skies clearing and lows once again near freezing in the deserts.
119 PM EST Mon Jan 22 2018 Temperatures will remain mild, through Tuesday, along with periods of rain, along and ahead of an approaching cold front. Rain will increase tonight in advance of a cyclone moving toward Western New York.
241 PM EST Mon Jan 22 2018 Unseasonably warm conditions are expected until the passage of a cold front tonight. Line of showers associated with a wave out ahead of the cold front will slowly make progress toward the region.
High pressure has built in over Colorado and will generally control the weather over the area for the next 24 hours.
/17/ The rains are ending from west to east ahead of the cold front. A cold front in association with this low is located across western Arkansas down across the ArkLaTex region and into the Texas Hill Country. Highs today should reach into the the lower 60s in the Delta to the lower 70s in the Pine Belt. As the upper system starts to pull off to the east, high pressure at the surface will move in this evening.
Weak high pressure and dry condition should return Tuesday morning.