Aikyam-Lab/Synoptic-Bench huggingface dataset:
Upper level trough over the eastern Great Lakes will continue to track away and ridging will remain over the western two thirds of the US. The large upper level ridge remaining a stronghold over the central to western CONUS will keep the remnants of Irma from reaching the state.
(Ridging overhead and to the west & lower pressure in association with Irma to the east will place us in a general northerly flow both aloft and at the surface). 47 Will continue to see light to moderate northeasterly winds over the weekend as high pressure to the east of the state interacts with the lower pressure from Hurricane Katia way south in the Bay of Campeche.
Temps will continue to run below normal with highs on Saturday in the low to mid 70s in most spots. Expect patchy valley fog again tonight with lows in the upper 40s in the cool spots to the low and mid 50s elsewhere.
High pressure covers much of the eastern half of the U.
1140 PM EDT Fri Sep 8 2017 Northeast flow across Lake Huron, associated with the strong high pressure to the north, will support some lake cloud development during the morning. Cool nights and mild days through the Weekend as sprawling high pressure dominates the Great Lakes Region. Center of the strong (1032 MB) high centered over Lower Michigan tomorrow night will likely lead to mins the same or even slightly cooler compared to tonight.
1004 PM EDT Fri Sep 8 2017 High pressure sliding across the northern lakes overnight providing ideal radiational cooling conditions. Northern Michigan on the western edge of the departing deep trough. High amplitude ridging is just upstream across the northern plains. High pressure/strong subsidence and drier air builds into the region tonight through Saturday. lots of sunshine anticipated with highs warming into the lower to middle 60s. High pressure at the surface and aloft builds in from the north/west and holds through the period.
1205 AM EDT Sat Sep 9 2017 Cool and dry weather is expected this weekend under high pressure. Increasing subsidence under building high pressure, and gradually veering boundary layer wind, should support a clearing sky overnight. Dry weather should continue Saturday under the high, though insolation will be offset by cool northerly flow. High pressure will continue to build south from the eastern Great Lakes offering continued cool overnights to keep the windows open and air conditioners in the off position.
Temperatures will be slightly warmer, but remain below normal for the time of the year.
1146 PM EDT Fri Sep 8 2017 High pressure over the Upper Great Lakes will gradually build southeast across our region during the course of the weekend.
Mid level ridging will remain in place across Texas through Saturday with no significant aviation concerns expected.
735 PM EDT Fri Sep 8 2017 An upper level low that brought us clouds, scattered showers and much below normal daytime temperatures over the past several days will exit east across the New England states and Southeastern Canada tonight and Saturday.
Northern Michigan on the western edge of the departing deep trough. High amplitude ridging is just upstream across the northern plains. High pressure/strong subsidence and drier air builds into the region tonight through Saturday. lots of sunshine anticipated with highs warming into the lower to middle 60s. High pressure at the surface and aloft builds in from the north/west and holds through the period.
630 PM CDT Fri Sep 8 2017 High pressure over the Tennessee and Ohio Valleys will continue to push east tonight. Low temperatures over central Missouri will be a couple of degrees warmer due to some mid level cloudiness over the area tonight.
Overnight lows will generally range in the lower to middle 40s. Deep cool upper trough continues to roll slowly through the eastern Great Lakes into the Northeast today with steep mid and low level lapse rates and a bit of lake influence producing widespread rain showers and a few isolated weak thunderstorms. A colder corridor of air along the trough axis will rotate into central/nrn NY later in the evening and tonight, and will likely be capable of an additional batch of light rain showers. High pressure will also be building in from the west along with upper level ridging and large scale suppression. Temperatures will remain on the cool side Saturday with highs only into the lower 60s for much of the area.
929 PM EDT Fri Sep 8 2017 An upper level trough will slowly cross the state on Saturday.
/issued 921 PM CDT Fri Sep 8 2017/ High pressure remains over the Mid-South this evening. High pressure covers much of the eastern half of the U.
1148 PM CDT Fri Sep 8 2017 High pressure over the Tennessee and Ohio Valleys will continue to push east tonight. Low temperatures over central Missouri will be a couple of degrees warmer due to some mid level cloudiness over the area tonight.
It will be a bit breezy Saturday afternoon in Kansas and Nebraska as the lee trough redevelops/deepens in eastern Colorado and increases the pressure gradient. Over the weekend an upper level ridge, with its axis over the Rockies, will influence the region. After the weekend, the ridge axis will shift to the east and cause the upper winds aloft to become northeasterly. Models are showing the ridge continuing to move eastward and a longwave trough moving in behind it from the Pacific Northwest.
Deep cool upper trough continues to roll slowly through the eastern Great Lakes into the Northeast today with steep mid and low level lapse rates and a bit of lake influence producing widespread rain showers and a few isolated weak thunderstorms. A colder corridor of air along the trough axis will rotate into central/nrn NY later in the evening and tonight, and will likely be capable of an additional batch of light rain showers. High pressure will also be building in from the west along with upper level ridging and large scale suppression. Temperatures will remain on the cool side Saturday with highs only into the lower 60s for much of the area.
709 PM EDT Fri Sep 8 2017 An upper level low that brought us clouds, scattered showers and much below normal daytime temperatures over the past several days will exit east across the New England states and Southeastern Canada tonight and Saturday.
1005 PM EDT Fri Sep 8 2017 High pressure will extend across the state through tonight. A dry cold front will move south through the area late Saturday into Saturday night.
802 PM EDT Fri Sep 8 2017 High pressure will continue to build in from the north tonight. Skies will be mainly clear, with the valleys likely dipping into the 40s once again, although lows should be a few degrees warmer than this morning, given the slightly higher dew points compared to yesterday. The next few days will feature dry and pleasant weather across eastern Kentucky, as a large and strong ridge of high pressure remains firmly entrenched across the region. Highs on Saturday will top out in the lower 70s for most locations. Lows the next two nights should range from the mid 40s to the lower 50s.
Another afternoon with isolated shower activity developing over the higher terrain and drifting eastward. Weak westerly flow aloft remains over the region as the upper ridge also remains in place over the Rocky Mountain interior.
With high pressure gradually moving off to the east, we should see one more night with widespread frost potential. An upper level trough of low pressure, dislodged from the sub-tropical jet stream, will be positioned over the Dakotas Saturday evening.
1138 PM CDT Fri Sep 8 2017 Ridging to the north, resulting in skc vfr conditions across area thru fcst period. /issued 930 PM CDT Fri Sep 8 2017/ Surface and upper-level ridge to prevail through the overnight period allowing for clear skies and low temperatures falling into the mid to upper 50s due to radiation cooling.
817 PM EDT Fri Sep 8 2017 High pressure will extend across the state through tonight. A dry cold front will move south through the area late Saturday into Saturday night.
921 PM CDT Fri Sep 8 2017 High pressure remains over the Mid-South this evening. High pressure covers much of the eastern half of the U.
609 PM CDT Fri Sep 8 2017 High pressure over AR will bring continued skc vfr conditions and lgt e-ne low lvl flow into area.
719 PM EDT Fri Sep 8 2017 High pressure extending southward from the Great Lakes Region will direct dry air into our forecast area through Saturday night.
720 PM EDT Fri Sep 8 2017 High pressure with dry and cool weather dominates through the weekend. Otherwise, Canadian high pressure will continue to funnel cooler than normal temperatures southward Saturday, despite abundant sunshine. Will continue with the primarily clear and dry with high pressure in control over the Great Lakes.
1008 PM EDT Fri Sep 8 2017 An upper level low that brought us clouds, scattered showers and much below normal daytime temperatures over the past several days will exit east across the New England states and Southeastern Canada tonight and Saturday.
The Pacific Northwest will be under a flat upper level ridge today. This ridge will flatten further tonight due the approach of system currently moving through the northern Gulf of Alaska.
/issued 423 AM CDT Mon Oct 16 2017/ SHORT TERM (Today through Tuesday): Fall-like weather with cool mornings and comfortable afternoons will prevail through Tuesday in the wake of last night's cold front. Cooler and drier air will continue to advect into the area today. High temperatures Tuesday will be in the low to mid 80s, which is closer to normal.
At 3 AM, a short wave trough was moving into Michigan. This will allow temperatures to warm into the mid and upper 50s north of Interstate 94 and into the lower to mid 60s elsewhere. The model dew points looked too high, so lowered them into the lower and mid 30s. For tonight, south and southwest winds of 5 to 10 mph will bring slightly warmer air into the region. As a result, low temperatures on Tuesday morning will be in the mid and upper 30s in central Wisconsin and in the lower and mid 40s elsewhere. In addition like today, the soundings show that there will plenty of dry air to mix down, so lowered the dew points into the lower 40s.
948 AM EDT Mon Oct 16 2017 Canadian high pressure will build into the area today with variably cloudy skies and seasonably cool temperatures as winds slowly relax. Clear skies tonight will aid in chilly temperatures with areas of frost and freezing temperatures expected. High pressure remains atop the region for the remainder of the week with fair weather expected along with a steady warming trend.
Warm and dry weather will continue for the early portion of the work week as high pressure holds over the area. A low pressure system is forecast to start moving toward the area by the middle of the week bringing cooler temperatures and wet weather to portions of the CWA. Dry conditions will persist through the early portion of the work week as an upper level ridge remains in place over the west coast.
1048 AM EDT Mon Oct 16 2017 Low level clouds are hanging on due to strong cold air advection behind the cold front now over the central Carolinas. Chattanooga Airport, TN 66 45 71 44 / 0 0 0 0 Knoxville McGhee Tyson Airport, TN 64 43 67 43 / 0 0 0 0 Oak Ridge, TN 64 43 68 43 / 0 0 0 0 Tri Cities Airport, TN 61 38 66 38 / 0 0 0 0.
1104 AM EDT Mon Oct 16 2017 Marine/Hydro An area of high pressure in the Middle Mississippi Valley will build east today and into the Central Appalachians for tonight.
VFR conditions will continue to prevail through the period with skies gradually clearing due to drier air advecting into South Texas post cold front. Minimum temps will drop into the low to mid 50s most areas, which is the coolest we've seen since May.
/17/ Latest rap and satellite imagery showed the upper trough axis moving through the Mississippi Valley in the wake of the cold front to the southeast. This combined with 40s dewpoints will bring humidities in the lower 30s across the northwest delta, with some minor fire weather issues.
/22/ Today and Tonight: Early morning surface analysis had a 1030mb high centered over Oklahoma and the cold front southeast of our CWA. Much cooler and dry weather is expected through tonight. Afternoon highs today will top out cooler than normal, in the lower 70s. Normal lows run in the lower 50s.
621 AM CDT Mon Oct 16 2017 High pressure is building into the midsection of the country this morning. The cold front from last night is well to the SE as the region is sitting under a ridge axis from the Southern Plains into the Great Lakes. Weak northwest flow aloft is expected to flatten out throughout the period and quiet weather to continue with ridging anchoring the weather through the work week. Plenty of sunshine should help to boost the temps into the low to mid 60s this afternoon. However, holding off on the mention for now as the guidance is showing a general warming trend to the lower 40s.
With the ridge axis overhead and inversions limiting mixing and ventilation for the rest of today, this haze will likely be slow to disperse. Some improvement in haze dispersion may arrive Tuesday afternoon as the ridge axis pushes east with the inversion weakening, leading to higher mixing heights and more favorable ventilation. /Issued 213 AM PDT Mon Oct 16 2017/ A warming trend will start today as high pressure strengthens over the Sierra and western Nevada.
701 AM CDT Mon Oct 16 2017 High pressure centered over northern Texas will move northeast across the Mississippi Valley into the Mid Atlantic Region by early Tuesday morning. The high will bring our area tranquil weather and temperatures near seasonal normals in the mid 60s today. Should see temperatures a few degrees warmer in the mid 40s over northern portions of the forecast area tonight as light southerly flow develops northwest of the ridge axis. Temperatures will be cooler in the upper 30s to around 40 under the ridge axis across southeast Missouri.
1025 AM EDT Mon Oct 16 2017 A large area of high pressure will settle into the Ohio Valley for the upcoming week, with dry conditions expected. However, as the low level flow backs around to more of a westerly direction and we get on the back side of the mid level trough axis, we should see a decreasing cloud trend later this afternoon. Under northwesterly flow and with a cooler airmass in place, expect highs today only in the 55 to 60 degree range. Conditions appear dry, clear, and slightly warmer than Monday -- lower to middle 60s.
Temperatures will rebound to near normal on Tuesday, then continue to gradually rise to well above normal right into this upcoming weekend, as a large area of high pressure builds in. Elsewhere across Central and NW PA, a fairly sharp but compact upper trough will slide SE from Lake Erie and the southern Ontario Peninsula. Even a few brief showers or sprinkles are possible across primarily the Laurel Highlands, where the best fetch/dual lake flow will occur within the otherwise shallow and highly sheared colder than normal airmass (with strongly anticyclonic flow from high pressure ridging in from the SW).
927 AM MDT Mon Oct 16 2017 Zonal flow with above normal heights and downslope gradients will result in a mild day today with most lower elevations getting into the lower 70s. High temperatures will be in the lower to mid 70s both today and Tuesday. A lee trough will remain anchored in place through the period and this will mean winds will stay up from Livingston to Nye.
815 AM PDT Mon Oct 16 2017 High pressure aloft and weak offshore flow will continue the hot dry weather west of the mountains through Tuesday.
1057 AM EDT Mon Oct 16 2017 Light rainfall chances peak this morning as a fast-moving cold front moves through the area. Warmer temperatures will return later this week as deep-layer ridging sets up over the Southeast US. Sun coming out should start bringing the temps up, but KAVL with stout gap wind will struggle to get much warmer than it is now.
Weak upper level ridge will remain in place through Tuesday. Temperatures will reach the mid to upper 60s this afternoon in the lower valleys.
842 AM EDT Mon Oct 16 2017 A cold front is moving eastward across the eastern United States with a cluster of showers and thunderstorms at the tail end of the front over the western Gulf of Mexico. High pressure is stretching from southwest to northeast across the eastern Gulf of Mexico to north of Bermuda. The main element in the forecast is the approaching cold front and the following high pressure.
737 AM EDT Mon Oct 16 2017 A cold front from Maine to Alabama will move southeast today and off the East Coast tonight.
1100 AM EDT Mon Oct 16 2017 Canadian high pressure with cooler and dry weather builds in through Tuesday. A large ridge of high pressure will build across the eastern U.
Latest rap and satellite imagery showed the upper trough axis moving through the Mississippi Valley in the wake of the cold front to the southeast. This combined with 40s dewpoints will bring humidities in the lower 30s across the northwest delta, with some minor fire weather issues.
532 AM MDT Mon Oct 16 2017 12Z TAF CYCLE Upper level high pressure centered over AZ will deliver clear skies and light winds to central and western terminals the next 24 hrs. A weak lee trough over northeastern NM will develop southwest breezes at KLVS and KTCC aft 17Z.
754 AM EDT Mon Oct 16 2017 After a cool start to the week, building high pressure will result in dry and gradually warming weather through the rest of the week. The upper-level trough axis will shift east of the area later today, effectively ending any lingering precipitation and working to erode remnant cloud cover. Broad high pressure over much of the Ern CONUS will maintain dry and gradually warming weather through the period. Low end VFR, to occasional MVFR stratocu, will persist with an approaching upper trough and in cool NW flow off the Great Lakes. Building high pressure will diminish wind and return VFR as Monday aftn progresses. No widespread restrictions are expected under high pressure.
1109 AM CDT Mon Oct 16 2017 Yesterday at this time we were in the mid to upper 80s headed towards the lower 90s. What a difference a cold front can make. Behind this front plenty of cold air advection as high pressure from the north builds down and into the region. Overnight lows to drop into the lower 50s along the I-10 corridor to the mid 40 acrs cntrl La and the lakes region in se Tx Tuesday mrng.
1155 AM EDT Mon Oct 16 2017 After a cool start to the week, building high pressure will result in dry and gradually warming weather through the rest of the week. Just a few isolated showers remain from this morning's activity as the upper-level trough swings through. Tonight, high pressure building at the surface will lead to clear sky and calming winds. Some locations could see below freezing readings, but most of these will be in the valleys of the high terrain and across the north, where the growing season has already ended. High pressure will remain firmly entrenched over the area through the middle of the week, ensuring a dry forecast.
1011 AM EDT Mon Oct 16 2017 Cold front currently crossing the Midlands and CSRA will move east of the area late this evening. High pressure will build in behind the cold front along with cooler and drier air for Tuesday through the end of the week. Cold front currently crossing the northern Midlands and CSRA will move east of the area late this afternoon. As the cold front pushes east of the forecast area late this afternoon much cooler and drier air will overtake the forecast area with pwat values dropping below one inch by late afternoon in the central Midlands and early evening in the eastern Midlands. Low temperatures tonight will be much cooler with mid 40s to around 50 and slightly warmer along lake shores.
Winds relax this evening as a high pressure system over north Texas pushes to the Ohio Valley region. Today should be pretty outstanding across the region with mostly clear skies and temperatures in the lower to middle 70s.
Cooler air is still filtering into the region after the cold front moved through yesterday. Otherwise, it's a breezy morning with temperatures in the low to mid 50s. Locations along the plateau will likely remain in the 50s while warmer locations such as Nashville will top out in the mid 60s.
/issued 1109 AM CDT Mon Oct 16 2017/ Yesterday at this time we were in the mid to upper 80s headed towards the lower 90s. What a difference a cold front can make. Behind this front plenty of cold air advection as high pressure from the north builds down and into the region. Overnight lows to drop into the lower 50s along the I-10 corridor to the mid 40 acrs cntrl La and the lakes region in se Tx Tuesday mrng.
High pressure will continue to build in behind a departing strong cold front. /issued 345 AM CDT Mon Oct 16 2017/ Analysis of surface observations this morning indicate the surface cold front has moved out over the central Gulf of Mexico this morning. The pressure gradient in the wake of the cold front has resulted in sustained winds of 10-15 knots with gusts of 20-30 across SE Texas and SW Louisiana. Winds are expected to remain gusty throughout the day and into the evening before the pressure gradient decreases with high pressure building into the region.
The thermal trough moves inland today, making it the hottest day of the stretch.
We may see a few light sprinkles as cloud decks lift in the warmer air later this morning. Nearby sites such as Idabel and Camden have improved to 6 and 4 miles respectively as the warm front continues to move Northward. Little change on the approaching cold frontal timing with another mild start on Friday.
Today/Tonight: A cold front will surge southward through the Tri- State region today as Canadian high pressure progresses from the Dakotas to the Central Plains. In the wake of the cold frontal passage, winds will veer to the N/NNE and increase to 20-30 mph sustained with gusts up to 40 mph for several hours late this afternoon and evening (primarily between 00-06Z) when cold advection /pressure rises/ are progged to be most pronounced.
The more widespread rain will come tonight into tomorrow with the cold front. A series of mid and upper-level waves in the northern stream will sharpen and drive a cold front into the Ohio Valley late tonight. Tonight the cold front will drop into southern Indiana, ramping up the coverage and especially the intensity of precip. West Coast trof and East Coast ridge will be the stars of the show.
304 AM MST Thu Feb 15 2018 Upper trough axis now extends from the northern Rockies into the Great Basin region and northern California. a strong cold front is now crossing east central Montana into North Dakota, with snow falling over those areas into northwest South Dakota. Snowfall is expected across the area, with the higher amounts will be limited to parts of northeast Wyoming to northwest South Dakota. At this time it looks like counties farther south may still see some localized impacts with snow/blowing snow, but the higher confidence is across northwest South Dakota where snowfall amounts will be greater.
751 AM EST Thu Feb 15 2018 Update Fog and drizzle will persist this morning then rain showers will move through this afternoon as low pressure tracks south of Michigan. A cold front comes through tonight with rain showers changing to snow showers. Not expecting much accums as inversion heights are around 5 kft then crash as sfc ridging builds in Friday afternoon.
Later tonight, a cold front will approach from the north, forcing some showers and even a clap of thunder or two. Much cooler weather is expected with highs only in the upper 30s to lower 40s.
411 AM CST Thu Feb 15 2018 (Today and Tonight) A warm morning ongoing with temperatures still holding in the lower 60s across much of the area. Temperatures should be a few degrees warmer than yesterday, mainly in the low to mid 80s. Mild again for much of the night, although the cold front we have talked about for several days will begin crashing through West Central Texas by sunrise, likely reaching the I-20 corridor from Sweetwater to Abilene.