Aikyam-Lab/Synoptic-Bench huggingface dataset:
Meanwhile, a cold front is still fcst to sloly apch NRN AR late today. Will cont to mention small rain chcs today, with the highest POPS noted ovr the NRN counties.
A tightening pressure gradient will form as low pressure developing over the Panhandles region and high pressure near the Coastal Bend of Florida interact. Meanwhile, temps will continue there warming trend with highs in the mid to upper 70s at beach to the lower 80s in the coastal counties and lower 90s across the far west. The pressure gradient will begin to relax this evening as the low pressure slowly departs and the high pressure near Florida moves west and sets up over the Central Gulf. Highs will be similar or maybe a degree cooler.
1021 AM EDT Fri Mar 17 2017 High pressure will prevail across the area through tonight.
723 AM EDT Fri Mar 17 2017 Cool high pressure will prevail through today.
While snow is expected to be the dominant precipitation type, patchy freezing drizzle is also possible given a very dry airmass above the warmer than -10C saturated layer. An upper level ridge quickly builds into the Dakotas Saturday with strong warming over the west.
Added patchy fog mention before 10 am this morning near an approaching weak cold front roughly 40 miles east and west of a Hollis to Weatherford to Medford line where some low level moisture pooling may occur. This afternoon, generally preferred the warmer side of guidance highs, mainly in the mid 70s to mid 80s, especially in western Oklahoma and western north Texas where abundant sunshine is expected.
As expected, temps fell to freezing early in the night over the extreme east, with CSV posting an overnight low of 28.
Freezing precip looks not impossible but iffy as temperatures in the area where it may occur in far NW MN a bit too warm at the sfc. But amounts are quite light so impacts not expected to be significant as high temps today hold near freezing to the mid 30s in precip area. Cold front at 08z was moving into the Red River valley. Signifcant warming occurs at 925-850 mb layer Saturday night with 850 mb thermal ridge peaking 12z Sun with +10 to +16C 850 mb temps at that time.
Warmer conditions are forecast across the region today under mostly sunny skies. Cooler and cloudier conditions return for the weekend with the potential for light precipitation over the North Bay.
651 AM CDT Fri Mar 17 2017 08z/3am surface analysis shows 1009mb low over western Iowa with warm front extending southeastward into central Illinois. Have therefore carried likely PoPs during the morning hours, with the higher PoPs quickly shifting into the far east and southeast by early afternoon as a cold front pushes into the area. Once the front passes, a cooler/drier airmass will arrive tonight with lows dropping into the lower to middle 30s. High pressure will provide quiet weather across central Illinois this weekend.
Aloft a well defined clipper moves south from south central Canada to the central Great Lakes region by late this evening with a stronger mid level impulse trailing further south of the main upper low progged to push south to the central gulf coast states by early Sat morning. With little to no moisture return in the lower levels. For today still mainly another temp forecast leading me to the warmer mos numbers again similiar to yesterday. Highs today will climb to the lower to mid 70s for most inland areas along and north of the I-10 corridor and mid to upper 60s closer to the coast. Lows tonight will be warmer than previous nights ranging from the mid 40s to near 50 for most inland areas and the mid to upper 50s closer to the coast.
Upper level ridge axis has shifted east into the Great Basin as an atmospheric river approaches the West Coast. These forecast high temperatures are around 10 degrees warmer than normal for this time of year.
A ridge of high pressure will give way to an incoming storm system that is forecast to spread clouds and showers to portions of the region today. A challenge will be with snow levels and a wedge of colder air remains over and near the higher elevations of the kittitas valley and along the east slopes of the Washington cascades where several inches of snow is possible into Friday evening before warmer air arrives Friday night.
The cold front should pass through late this morning, clearing skies and allowing temperatures to reach the mid-60s to low-70s. Only areas north of HWY 36 will experience temperatures at or slightly below freezing. Highs Saturday will also be slightly cooler, ranging from the mid-50s in north-central MO to low-60s everywhere else.
Ahead of this area, in the Red River Valley and northwest Minnesota, there has been some drizzle, and surface temps are much warmer. Cold front at 08z was moving into the Red River valley. Significant warming occurs at 925-850 mb layer Saturday night with 850 mb thermal ridge peaking 12z Sun with +10 to +16C 850 mb temps at that time.
753 AM EDT Fri Mar 17 2017 Cool high pressure over the area this morning will move off the southeast coast this afternoon. A cold front will bring a chance of brief showers Saturday.
The long wave trough extends south from a closed upper low located over the Gulf of St. A minor short wave trough in the eastern Gulf of Mexico will move slowly across the Florida peninsula. Another closed upper low develops over the Great Lakes by Saturday morning and will move eastward over the New England states by late Saturday. On the surface, strong high pressure over the southeast U. ridges south over the Florida peninsula and into the Gulf of Mexico, producing mostly clear and sunny conditions over the area for the remainder of the week and into the weekend.
728 AM EDT Fri Mar 17 2017 Clouds will remain at VFR levels for most of the day, but with increasing moisture depth and an approaching low pressure system, rain will develop and spread across the area.
1016 AM MDT Fri Mar 17 2017 Cooler air has moved into the area today behind a cold front that pushed through last night. Models have an upper ridge with weak zonal flow aloft over the CWA Saturday and Saturday night.
1042 AM EDT Fri Mar 17 2017 Today will be quiet as high pressure briefly builds into the area. High pressure builds in today cutting off the NW flow and bringing mainly clear skies. Fresh and deep snow cover will keep temps down a bit below what you would normally see given the time of year and ridge. this will delay the onset of the precipitation from the approaching warm front until very late at night. To begin the period Saturday evening, a closed 500 mb low will be located over PA with a developing low pressure system at the surface over the western Atlantic and an inverted trough hanging back into PA.
Upper ridge moves to the east on Saturday and much warmer air mass moves into the area. Cold front moves through the area Saturday Night with limited moisture.
651 AM MDT Fri Mar 17 2017 Current observations across Wyoming and western Nebraska show a weak cold front located near Riverton in central Wyoming, stretching southeast past Laramie and along the Colorado/Wyoming/Nebraska border early this morning. Today will be slightly cooler into the afternoon, but temperatures will still be pleasant with relatively light winds. Pleasant warm weather is expected this weekend as temperatures rebound on Saturday as another ridge axis quickly moves eastward and amplifies across the central Rockies. Afternoon temperatures in the 70's to low 80's are expected across the high plains with slightly lower readings in the upper 60's west of I-25 including Rawlins and Laramie.
East Central Florida Forecast Discussion 923 AM EDT Fri Mar 17 2017 An abnormally dry airmass remains in place over the area due to effects from Large H100-H70 ridge blanketing the SE CONUS. (from prev disc) High pres ridge extending from the Mid Atlc to the NE GOMex will drift south into the north FL Peninsula.
Moisture will remain abundant in the lower levels but mid and upper levels extremely dry on a continued and dominant west to northwest flow. Minor exception will be a chance for just few showers Saturday mainly over the northern portion of the forecast area as a cold front slips into the area serving as a focus for afternoon convective development.
841 AM EDT Fri Mar 17 2017 An approaching cold front will bring a mix of snow, sleet, and freezing rain across our area early today. However, temperatures should rise above freezing by late morning, diminishing any travel hazards by noon.
1043 AM EDT Fri Mar 17 2017 An approaching cold front will bring a mix of snow, sleet, and freezing rain across our area early today. However, temperatures should rise above freezing by late morning, diminishing any travel hazards by noon.
A cold front is moving though our area this morning. Models and MOS are in reasonable agreement clustered around the lower 70s for most of the area, possible only as warm as the upper 60s around Hays and Wakeeney.
Also, a trough of low pressure, to the west, will produce gusty winds from the south and southwest today. /issued 353 AM CDT Fri Mar 17 2017/ (Today and Tonight) Look for dry conditions and warmer than normal temperatures for the next 24 hours.
Low pressure/pressure falls over SE WA will allow winds over KLVM/Big Timber to stay E today, so have adjusted wind directions there. Some moisture reaches the SW mountains late in the day for a slight chance of precipitation at the highest elevations. Generally dry weather can be expected across the region today as upper ridging builds over the Northern Rockies. Dry weather will continue into Saturday as upper ridging remains over the region and heights build aloft. Lee troughing over the area will support downslope winds, strongest across the western foothill locations. High temperatures in the 50s can be expected for most of the lower elevations today with temperatures warming into the 70s for most locations on Saturday.
1012 AM CDT Fri Mar 17 2017 High pres centered over GA is ridging west and southwest acrs the gulf coast. This is resulting in southerly winds acrs the area, bringing a warmer and more humid airmass to the region. Moisture will remain abundant in the lower levels but mid and upper levels extremely dry on a continued and dominant west to northwest flow. Minor exception will be a chance for just few showers Saturday mainly over the northern portion of the forecast area as a cold front slips into the area serving as a focus for afternoon convective development.
944 AM EDT Fri Mar 17 2017 High pressure will build in from the west today providing dry but cool weather. High pressure will slide off shore Saturday as low pressure develops south of New England.
Weak cold front, currently located near a Dodge City KS, Lincoln NE line, will move into northeast Oklahoma near I-44 by mid afternoon. Boundary will stall near the Red River Saturday morning before lifting back north as a warm front.
736 AM EDT Fri Mar 17 2017 High pressure will build in from the west today providing dry but cool weather. High pressure will slide off shore Saturday as low pressure develops south of New England.
High pressure to our north will gradually slide eastward while weakening through the weekend. A clipper system will drop out of Canada and across the Great Lakes Region tonight, and attack the western flank of the ridge.
Chattanooga Airport, TN 61 51 69 38 / 30 90 50 10 Knoxville McGhee Tyson Airport, TN 57 49 66 36 / 60 90 40 10 Oak Ridge, TN 56 49 68 37 / 70 90 30 10 Tri Cities Airport, TN 53 44 62 33 / 70 90 50 20.
725 AM EDT Fri Mar 17 2017 A ridge of high pressure will build into the region with clearing skies and cool temperatures expected today and tonight.
1016 AM EDT Fri Mar 17 2017 Cool high pressure will prevail through today.
This low pressure system will drape a weak east-west oriented frontal boundary across the Tennessee Valley, which will being to slowly push southward into Central AL late tonight as a stronger upper-level low pressure system builds into the Great Lakes region.
Cold front will be moving through all TAF sites today causing winds to veer from southwest to northeast. A vigorous upper level low is exiting Nova Scotia north into Newfoundland and dragging a strong mid-March cold front behind it across the Northeast. In between, we find West Texas with a building ridge. In fact, depending on your location, highs today will actually turn out to be warmer than yesterday.
temperatures will rebound into the lower 60s coast to the lower 70s well inland today. Temperatures tonight will remain above freezing with readings in the 40s.
1026 AM CDT Fri Mar 17 2017 Cold front well into eastern Iowa with not much in the way of warming behind it. The latest sfc analysis was indicating a wave acrs southwestern IA, with associated warm front extending southeastward along and just south of the DVN CWA into southern IL. Passing sfc trof and wave will veer the llvl winds to the west and increase them to 10-20+ MPH with higher gusts during the same time frame, but some lag in cool advection by this flow until late in the day.
Temperatures are already about 8-10 degrees warmer than normal and expect with the breezy conditions across the south and western areas today to still allow afternoon temperatures to rise to 4-7 degrees above normal for highs. the previously mentioned cold front sags south and may reach extreme NETX and stalling there leaving SETX in a coll at the surface with the tail end of the upper shear axis swinging southeastward through the region. given the stalling front and potential for stronger heating and warmer start have boosted rain chances a little for the southern areas.
The latest sfc analysis was indicating a wave acrs southwestern IA, with associated warm front extending southeastward along and just south of the DVN CWA into southern IL. Passing sfc trof and wave will veer the llvl winds to the west and increase them to 10-20+ MPH with higher gusts during the same time frame, but some lag in cool advection by this flow until late in the day.
1001 AM EDT Fri Mar 17 2017 High pressure will remain over the Southeastern United States this afternoon keeping the weather dry along with a northeast wind flow over South Florida.
An upper level ridge quickly builds into the Dakotas Saturday with strong warming over the west.
912 PM EDT FRI JUL 15 2016 A cold front draped across northern Ohio will move southeast of the area this evening. High pressure will build in behind the cold front on Saturday and remain in place through the weekend.
953 PM MDT FRI JUL 15 2016 Upper level low centered over far SE BC will drift slowly east tonight with a SW flow aloft remaining over western and central MT. However, weakly diffluent flow aloft and additional energy rotating around the upper low will maintain at least an isolated threat for showers and thunderstorms through most of tonight with the greatest likelihood for showers continuing across NW portions of the forecast area in closer proximity to the upper low center. Upper level low centered over NW MT/SE BC will move little through the next 24 hrs. Water vapor analysis reveals a closed upper level low drifting over northeast Washington state.
756 PM EDT FRI JUL 15 2016 A cold front draped across northern Ohio will move southeast of the area this evening. High pressure will build in behind the cold front on Saturday and remain in place through the weekend.
1020 PM EDT FRI JUL 15 2016 A pressure ridge will extend westward from the Atlantic into the northern Gulf of Mexico through Saturday. North of the ridge a pressure trough will be in the forecast area. There will also be weak upper troughing over the area. Cannot rule out isolated showers and storms overnight given the upper trough to our west and increasing moisture, so have continued with chance/slight chance pops overnight. Low temperatures forecast near guidance, in the lower to middle 70s. Upper level trough over the eastern CONUS with several weak short waves rotating northeast through the region.
800 PM EDT FRI JUL 15 2016 A cold front will drop south across NY and stall near the NY-PA border overnight.
743 PM EDT FRI JUL 15 2016 Weakening cold front tonight into Saturday.
The upper trough over the panhandle of Idaho will continue to push showers and thunderstorms from Western Montana into Central Montana. Proton An upper ridge will translate east of the region this evening as an upper trough and closed low digs into western Montana. As the upper low pushes further east over the forecast area Saturday afternoon and evening establishing upper level diffluent zonal flow.
1013 PM EDT FRI JUL 15 2016 A cold front will move into northern Maine this evening with another round of thunderstorms.
720 PM CDT FRI JUL 15 2016 An area of high pressure was over the forecast area at 19Z. Removed the pops from Saturday morning as mid level ridging is over the forecast area. Deterministic models are quick to develop thunderstorms in the afternoon in response to an approaching short wave trof.
1139 PM EDT FRI JUL 15 2016 A pressure ridge will extend westward from the Atlantic into the northern Gulf of Mexico through Saturday. North of the ridge a pressure trough will be in the forecast area. There will also be weak upper troughing over the area. Cannot rule out isolated showers and storms overnight given the upper trough to our west and increasing moisture, so have continued with chance/slight chance pops. Low temperatures forecast near guidance, in the lower to middle 70s. Upper-level trough over the eastern CONUS with several weak short waves rotating northeast through the region.
815 PM EDT FRI JUL 15 2016 Cooler and less humid conditions will settle in for much of the upcoming weekend with highs in the 70s and lows in the 50s.
810 PM EDT FRI JUL 15 2016 A pressure ridge will extend westward from the Atlantic into the northern Gulf of Mexico through Saturday. North of the ridge a pressure trough will be in the forecast area. There will also be weak upper troughing over the area. Cannot rule out isolated showers and storms overnight given the upper trough to our west and increasing moisture so have continued with slight chance pops. Low temperatures forecast near guidance, in the lower to middle 70s. Upper level trough over the eastern CONUS with several weak short waves rotating northeast through the region.
1154 PM EDT FRI JUL 15 2016 A cold front will move into northern Maine this evening with another round of thunderstorms.
1029 PM EDT FRI JUL 15 2016 A weak cold front will drift slowly southeast of the Ohio River tonight.
Cold front that has moved through the area has stalled along the Nevada/Idaho Border, while the main portion of the front has pushed northeast into central Montana.
716 PM EDT FRI JUL 15 2016 A cold front will move into northern Maine this evening with another round of thunderstorms.
Stable 500 mb ridging will prevail over the RGV airports over the next 24 hours. Overnight and into Saturday, a mid-level inverted trough moves into the NW Gulf of Mexico. Even with somewhat better moisture values on Saturday, the local area will be on the subsident side of the approaching mid-level inverted trough, so precip chances on Saturday will be minimal. By late Saturday night, the trough is nearly overhead, with GFS painting some light coastal QPF (not so much on the NAM), so isolated PoP's were extended over the coastal areas and offshore waters.
The base of the upper level trough will move through the region tomorrow, bringing additional cloud cover and scattered showers/thunderstorms to the area. Chattanooga Airport, TN 71 92 70 93 / 30 40 30 30 Knoxville McGhee Tyson Airport, TN 68 88 68 91 / 20 40 30 20 Oak Ridge, TN 70 88 68 90 / 30 40 30 20 Tri Cities Airport, TN 64 87 65 88 / 20 40 40 20.
841 PM EDT Fri Jul 15 2016 A cold front will move into the area tonight and linger nearby through the weekend.
755 PM EDT FRI JUL 15 2016 A weak cold front will drift slowly southeast of the Ohio River tonight.
Models show a weak upper-level trough moving across the region on Saturday.
A rather diffuse cold front will settle southward across Pennsylvania overnight. Models show a weak upper lvl trough moving across the region on Saturday. Slightly cooler and less humid air will work into the area Saturday night. Medium range pattern will feature an expansive deep-layered mid- latitude anticyclone anchored over the southern Plains with general troughing over the Pacific Northwest and New England. With the jet stream retreating taking up climo residence into southern Canada, precipitation will be favored around the periphery of the upper high.
1000 PM EDT FRI JUL 15 2016 Weakening cold front tonight into Saturday.
1030 PM EDT FRI JUL 15 2016 A cold front will drop south across NY and stall near the New York and Pennsylvania border overnight.
1250 AM EDT SAT JUL 16 2016 Cooler and less humid conditions will settle in early this morning with temperatures falling into the 50s over most areas by daybreak as high pressure moves into the area.
758 PM EDT FRI JUL 15 2016 High pressure remains off the Southeast coast through Saturday as a cold front slowly drops into the area.
However, chances for isolated showers and thunderstorms will continue into the overnight hours as the cold front has now pushed into northern portions of the CWA. A weak cold front extended from northeast Ohio through southern Missouri and into eastern Colorado. Temperatures will remain on the warm side with lows Saturday morning in the low to mid 70s. The front will stall out briefly over the region Saturday morning and then start to lift back north as a warm front by Saturday afternoon. Temperatures will be quite warm on Saturday with highs in the lower 90s. The warm front should be north of the region by Saturday evening so dry weather is expected.
Temperatures are in the lower to mid 80s. In the low to mid levels of the atmosphere, an Atlantic ridge of high pressure will extend across central Florida overnight. In the upper levels of the atmosphere, an area of low pressure will be centered over the southwest Gulf of Mexico tonight.
KCDS stands to see the highest chance at storms during this time period. Of greater concern is convection that is already well underway from southeast Colorado into the higher terrain of New Mexico. Temperatures tonight should be a little warmer than this morning, mostly from the mid-60s to lower 70s, though a strong cool pool from overnight convection could have something to say about that. One difference from the previous heat wave that spanned much of the first 14 days of the month is mid level temperatures are forecast to be some 4-5C cooler as we dwell on the underside of the ridge.
Flow across the region has shifted to a northwesterly component aloft as the trough axis has migrated into w KS.
649 AM EDT SUN JUL 3 2016 A warm front will lift north into the area.
There appears to be a disturbance over wrn CO which is moving se and may produce a slight chc of showers this morning over the higher terrain south of I-70. For this aftn into this evening although precipitable water values will be decreasing there should be enough lingering moisture for some storms over the higher terrain especially along and south of I- 70. As for highs temps will be warmer this aftn with readings in the mid to upper 80s across nern CO.
Temps will be slightly cooler near the lake than yesterday due to an earlier onset of ely winds, while temps inland may be slightly warmer than yesterday.
This is bringing much cooler temperatures to the southern Sacramento valley this evening. Temperatures are continuing to run cooler today. A trough will remain over the west coast to keep moderate flow through the delta and a deeper marine layer along the coast.
All the low clouds/boundary layer moisture over Nebraska and south central South Dakota are progged to advect their way northward into this cwa later tonight/early Sunday morning, either in the form of additional low clouds or areas of fog /probably a combination of both/. Dropped lows a few degrees from previous forecast, more towards the cooler end of guidance which is what we have been seeing the past few mornings. With 925/850 mb temps warming a couple more degrees on Sunday, and with better mixing, expect highs to be a few degrees warmer than today.
, with an upper ridge extending coast-to-coast across the southern-tiered states of the CONUS and into Mexico and beyond.