Aikyam-Lab/Synoptic-Bench huggingface dataset:
Moderate pressure gradients from the high desert to the coast resulting in gusty winds through and below the mountain passes of the Tehachapi mountains. Winds will turn south overnight as a trough moves into N CA. Winds becoming breezy and gusty saturday morning towards Merced as gradients strengthen in the Sacramento valley with the approaching trough. The frontal boundary will move into the North sectors of the central valley Saturday afternoon and stall as the upper level supporting trough moves ne through the Pacific NW.
837 PM EST Fri Nov 18 2016 High pressure will crest over the region tonight and will gradually shift east on Saturday and intensify as it moves into southern canada.
554 PM CST Fri Nov 18 2016 Strong storm system over the Great Lakes will continue to move north and east as high pressure builds over the region from the west. Most models clear out the clouds tonight as high pressure builds over the area. expect a minimal warmup into the mid-upper 30s west where a warm advection pattern is just becoming established under an h500 building ridge. Cooler temperatures in the upper 20s to around 30 east.
Chattanooga Airport, TN 48 56 31 53 / 50 10 0 0 Knoxville McGhee Tyson Airport, TN 45 52 28 48 / 50 30 0 0 Oak Ridge, TN 46 52 28 49 / 60 20 0 0 Tri Cities Airport, TN 41 50 25 43 / 20 50 10 0 NC.
817 PM EST Fri Nov 18 2016 At 8pm EST a cold front stretched roughly from Fort Wayne IN to Hartford KY to Jackson TN. Amounts similar to that are possible in southern Indiana and central Kentucky tonight, though most spots will probably be closer to the lower end. Strong cold front still on track to bring showers into our region this evening and continuing them eastward overnight.
532 PM CST Fri Nov 18 2016 Look for much colder temperatures tonight in the wake of the strong cold front which moved across the region today. Kanofsky (Saturday night through Friday) High pressure continues to build into the region to start the period under northwest flow.
High pressure over the Great Basin today will shift east into the plains states this weekend.
This very powerful cold front looked so promising at 3 pm on radar, but has since then quickly fizzled as it approaches the western wall of Central Alabama. A strong cold front is set to move through Alabama overnight, with an accompanying line or broken line of showers (affecting select terminals given an anticipated weakening trend with eastward extent). 89^GSatterwhite Dry air, cooler, and breezy conditions will build in behind a cold front on Saturday.
813 PM EST Fri Nov 18 2016 High pressure will remain in place through Saturday.
Temperatures are in the lower to mid 70s. In the low levels of the atmosphere, an area of high pressure over the southeastern United States will weaken overnight. In the mid levels of the atmosphere, a ridge of high pressure will be located over the Florida peninsula tonight. In the upper levels of the atmosphere, a trough of low pressure will deepen over the central Gulf of Mexico overnight.
/issued 426 PM EST Fri Nov 18 2016/ High pressure remains in control across the eastern CONUS and the Florida peninsula with mainly easterly winds through the mid- levels. A north to south elongated cold front is forecast to move eastward into the eastern CONUS tonight with the southern extension forecast to enter the Florida panhandle on Saturday afternoon. Weakened high pressure will continue to dominate across South Florida on Saturday with no showers expected. By Saturday evening the cold front is expected to enter north central Florida and continue moving steadily southeast Saturday night.
910 PM CST Fri Nov 18 2016 Cold front has cleared our far southeast zones late this evening and regional radar mosaics show that the precipitation has pushed south and east of our region as well.
A FEW-BKN050 layer will erode this evening leaving SKC tonight through Saturday night as airmass dries due ridges at the surface and aloft building into South Central Texas. The cold front is nearing the southern extent of the County Warning Area as it continues its progression to the south. Lows in the Hill Country are expected to be at or below freezing for many locations. Middle 30s are expected for the I-35 corridor, but can't rule out some low-lying areas outside of the cities reaching the freezing mark.
Quiet conditions will continue through the short term as a ridge of high pressure moves over the forecast area on Saturday. Temperatures tonight will remain cool again, but increasing clouds overhead from the west, and a slight increase in winds overnight, will keep temperatures a little bit warmer and in the mid to low 20s (perhaps the upper teens out east where clouds will be fewer). Afternoon temperatures will be warmer as well and should reach into the 40s.
939 PM CST Fri Nov 18 2016 THE COLD FRONT HAS PUSHED THROUGH THE AREA THIS EVENING WITH SHOWERS AND THUNDERSTORMS SHIFTING INTO DEEP SOUTH TEXAS. Cold front will push south of the area this evening with gusty northerly winds it is wake. For the rest of the afternoon into the evening the main weather player will be a seasonally strong cold front that will drive south through the area. The rest of the short range will feature mostly clear skies and lessening winds as deep ridging builds in. Temperatures will be considerably cooler than of late with the outside chance for some light frost in sheltered areas of the far north CWA.
Cold front will push south of the area this evening with gusty northerly winds it is wake. For the rest of the afternoon into the evening the main weather player will be a seasonally strong cold front that will drive south through the area. The rest of the short range will feature mostly clear skies and lessening winds as deep ridging builds in. Temperatures will be considerably cooler than of late with the outside chance for some light frost in sheltered areas of the far north CWA.
416 PM MST Fri Nov 18 2016 As of 1 PM MST/2 PM CST: An upper closed low located over southern Minnesota continues to move further towards the Great Lakes. Temperatures range from the low 30s in eastern Colorado to around 40 degrees near Hill City, Kansas. Tonight: Northwest flow develops over the High Plains as upper level ridging progresses over the area. Tomorrow: The ridge advances further east, with its axis reaching the Rockies by the afternoon. As a result, warmer temperatures near 50 degrees are in store. Another low pressure system moves onto the west coast.
The high pressure ridge aloft now over the Great Basin will gradually shift over Colorado on Saturday. This will result in increasing west winds over the higher mountains and higher east slopes later tonight and Saturday. Temperatures will be warmer on Saturday with considerable warm advection in the lower to mid layers of the atmosphere. An upper level ridge will be centered over the state Saturday evening.
949 PM CST Fri Nov 18 2016 High pressure will continue to move east across the forecast area tonight. Temperatures are 5 to 15 degree warmer under the cloud cover in the southwest but it does appear to be diminishing. Strong storm system over the Great Lakes will continue to move north and east as high pressure builds over the region from the west. Most models clear out the clouds tonight as high pressure builds over the area. expect a minimal warmup into the mid-upper 30s west where a warm advection pattern is just becoming established under an h500 building ridge. Cooler temperatures in the upper 20s to around 30 east.
1047 PM EST Fri Nov 18 2016 Dry high pressure will slide farther off the Southeast Coast tonight ahead of an approaching cold front. The trailing cold front will be approaching early Saturday morning. This combined with warm advection ahead of the front will result in warmer overnight temperatures than previous nights. Amplified/negative tilted upper trough over the Great Lakes into the Mid Atlantic/Carolinas will drive a dry cold front through the area Saturday afternoon. Weakening cold advection overnight with temperatures falling into the 30s although appears to remain above freezing with strong mixing in the boundary layer.
305 PM MST Fri Nov 18 2016 Warmer weather will return for the weekend.
A dry cold front will move through the marine area Saturday.
553 PM EST Fri Nov 18 2016 High pressure will crest over the region tonight and will gradually shift east on Saturday and intensify as it moves into southern canada.
445 PM MST Fri Nov 18 2016 Quiet weather seen across the CWA through the weekend with an upper ridge sliding across the region Saturday and Saturday night.
The cold front and associated line of convection has cleared all TAF sites as of 545pm.
High pressure from the west builds into western Kansas by early morning helping to decrease winds and push cloud cover east. Lows will range from the low to mid 20s throughout northeast Kansas. With winds not completely calm overnight, wind chill values will drop into the teens, with the lowest values seen in north central Kansas around 15 degrees. By Saturday afternoon, the high pressure will be located over northern Oklahoma expanding into northeast Kansas.
330 AM EDT SAT JUL 16 2016 A brief ridge of high pressure will build in for today as temperatures remain slightly cooler than yesterday.
653 AM EDT SAT JUL 16 2016 High pressure will provide another day of seasonably cool and less humid conditions. except a bit cooler near Lake Michigan.
West to southwest flow aloft increases across the area through the day tomorrow, as upper trough translates across the Great Basin. With current dry conditions and expected breezy winds of 15 to 35 mph, strongest over the higher terrain, and low afternoon humidities, have issued a Red Flag Warning for Fire Weather Zones 220-225, which includes most of south central Colorado. H7 winds still not particularly strong, but with enough mixing there could be some marginal fire wx concerns Sun afternoon, especially over the higher terrain.
308 AM PDT SAT JUL 16 2016 A trough of low pressure near the West Coast will bring slight cooling and a slightly deeper marine layer this weekend. high pressure centered over the central and southern plains will strengthen and expand to the west bringing a slow warming trend and shallower marine layer.
333 AM EDT Sat Jul 16 2016 A weak cold front will move slowly south from Canada overnight and Saturday, and will bring a slight chance for rain showers to the north country. A ridge of high pressure will build into the north country Saturday night and remain through Sunday, with fair and dry weather expected.
Moderate delta breeze this evening providing a cooler evening for srn Sac/nrn San Joaquin valleys with readings 5-10 degrees cooler versus yesterday at this time. Afternoon temps running upwards of 11 degrees cooler near the Delta while elsewhere across Interior NorCal generally only a couple degrees lower. Combined with height and thickness drops, highs tomorrow expected in the 90s for the Central Valley with 80s for the Delta and portions of the foothills, 60s and 70s for the higher terrain. Upper low develops off the PacNW coast Sunday and digs bringing additional synoptic cooling to the forecast area, deeper marine layer, and continued moderate to strong Delta breeze.
A meso high pressure center has developed in the wake of the convection, and has helped push an earlier outflow boundary south into Kansas. Low level moisture will begin to surge north late tonight as a warm front lifts north into the area toward morning. As mentioned a warm front will surge north into southern South Dakota by Saturday afternoon.
Meanwhile, high pressure shifting to the east of Arizona will open the door to southerly flow and monsoon moisture. High pressure aloft was centered over the southern portion of the Arizona/New Mexico border during the early morning hours.
326 AM CDT SAT JUL 16 2016 Latest water vapor satellite imagery showing upper level trough over the northeastern United States. Latest 08z surface analysis indicates weak ridge over northern Illinois.
300 AM EDT SAT JUL 16 2016 A cold front will stall out across the Downeast Region today.
Isolated high-based thunderstorms have developed over the higher terrain and some northern valleys this afternoon with gusty outflow winds the main concern. The gradient will tighten across much of the area on Saturday as an upper level trough over the Pacific Northwest moves inland and drags a 90kt jet streak across northern Utah, southern Idaho and Wyoming. Some isolated high- based storms are still possible over the higher terrain near the divide of western Colorado with gusty outflow winds the primary concern. A trough of low pressure moving onto the west coast will cause the high pressure ridge to shift eastward beginning Sunday, allowing sub-tropical moisture to increase across the area.
The rather light winds and slight seas will continue as weak high pressure holds across the waters.
615 AM EDT SAT JUL 16 2016 Weakening cold front moves through the area today. High pressure tonight into Sunday night.
657 AM EDT SAT JUL 16 2016 A brief ridge of high pressure will build in for today as temperatures remain slightly cooler than yesterday.
258 AM CDT SAT JUL 16 2016 Isolated showers and storms that formed last night near the Highway 54 corridor have fizzled out or pushed eastward out of our forecast area this morning. Generally, coverage should be rather limited through tonight with the better chances remaining along the Highway 54 corridor.
Upper ridging from the Atlantic extending west across the northern peninsula and southeastern states will remain in place through Sunday while the low level ridge axis currently across the central peninsula today drifts north to the northern peninsula on Sunday. Temperatures will remain above normal through the period with overnight lows in the mid 70s over inland areas, and upper 70s to around 80 along the coast with daytime highs climbing into the lower 90s along the coast, and mid 90s inland with heat indices in the 100 to 105 degree range likely over inland locations each afternoon.
229 AM EDT SAT JUL 16 2016 High pressure remains off the Southeast coast through Saturday as a cold front slowly drops into the area. There is little upper- level support however a thermal trough and hot/humid airmass warrants 20-40% PoPs, with strong storms possible as well due to high cape. A weak cold front drops into the area Sat, bringing another chance of aftn/eveng shras/tstms. Medium range models remain in pretty good agreement that pattern will evolve into a building strong upper level ridge over the central and southern Plains with an upper level trough along the east coast.
Daily scattered convection and above normal temperatures will continue this weekend under light southerly steering flow as the Bermuda ridge axis builds northward across NE Fl today and then extends across S Ga Sunday. The highest rain chances were advertised across inland areas generally between the Interstate 75 and Highway 301 corridors with a slow northward motion continuing convection across SE Ga into the evening hours. Heat index values will increase to near 105 inland before convective outflows cool and stabilize the low levels. Low temperatures will again fall into the low/mid 70s with patchy late night fog possible. Sunday the ridge axis across Ga will enable a slightly stronger east coast sea breeze which will focus the sea breeze merger and higher chances of late afternoon/evening convection toward the Interstate 75 corridor.
317 AM EDT SAT JUL 16 2016 Weakening cold front moves through the area today. High pressure Saturday night into Sunday night.
Afternoon highs will run in the low to mid 90s with heat indices in the mid 90s to low 100s.
Temperatures ranged from the mid 40s in the north to the lower 50s in the south.
This will make for cooler temperatures tonight. More sunshine expected Sunday for a warmer day but with comfortable humidity levels.
453 AM EDT SAT JUL 16 2016 High pressure will provide another day of seasonably cool and less humid conditions. except a bit cooler near Lake Michigan.
327 AM CDT SAT JUL 16 2016 A large convective complex continues to push across SW OK at this time, with most of the low level moisture transport feeding this complex. Ketcham Expect the subtropical ridge to continue to build across the plains for the beginning of the week. The higher surface dewpoint air will probably keep max temps in the upper 90s as heating goes to burning off the higher dewpoint air, but expect heat index values of 100-105 by the Mon-Thu.
The ridge will continue to build and encompass most of the southen CONUS by tomorrow afternoon.
As mid level waa returns tonight along with increasing 85h winds and a short wave trough moving in, expect some showers and storms to develop out west this evening and spread east through tonight and Saturday. Also, deep layer shear will be increasing as a short wave trough moves into the region. Kept with the high chance/likely pops for Saturday afternoon and night.
Models maintain possible redevelopment of showers and thunderstorms overnight due to upper-trough across the region.
As high pressure remains in control a light easterly flow prevails through the night. The low temperatures will remain in the mid 70s interior and west and low 80s along the east coast. Upper level low S of Cuba will travel westward this weekend across the area but 700 MB mid level moisture will be very limited. High temperatures will near seasonal normal through the weekend ranging from the low to mid 90s and low temperatures in the low to mid 70s.
The well-stacked sub-tropical ridge remains intact across the Western North Atlantic. Undulations in moisture and low level curvature are observed working west along the southern flank of the sub-tropical ridge.
142 AM EDT SAT JUL 16 2016 Weakening cold front tonight into Saturday. High pressure Saturday night into Sunday night.
155 AM EDT SAT JUL 16 2016 A cold front will drop south across NY and stall near the New York and Pennsylvania border overnight. High pressure with less humidity will build into the region for Sunday. For Saturday night, upper level trough moves east overnight and and thus trended down POPs as all precipitation should die off after midnight. High pressure at the surface will be in place across the region Sunday with quasi-zonal flow aloft likely producing a layer of high clouds. and keeping the weak/cool cyclonic flow around enough to keep temperatures in the lower to mid 80s.
322 AM CDT SAT JUL 16 2016 A broad high pressure ridge is dominating much of the Midwest this morning, with a stalled frontal boundary draped along the Ohio River Valley. The cooler airmass will keep todays highs in the upper 70s and lower 80s with generally light winds out of the east/southeast. Tonight will be a little warmer, into the 60s with increased cloud cover inhibiting a rapid cool down as the next weather system moves into the region. As the massive 597 dm upper high remains anchored over the Kansas/Oklahoma area, possibility of some ridge-rider MCS's tracking over our area exists.
449 AM CDT SAT JUL 16 2016 Looking at the large scale weather picture aloft, the central Gulf coast is positioned within a weakness between two high pressure ridges. 1 inches today), high level trof/shear zone in place from the Mid- South to across Louisiana, daytime heating and resultant instability. Overnight lows in the lower to mid 70s interior to mid to upper 70s beaches.
412 AM EDT SAT JUL 16 2016 Weakening cold front moves through the area today. High pressure tonight into Sunday night.
This should still allow temps to fall nicely into the lower 70s for most areas by early Sat morning, especially with dew pt trends hovering from the mid 60s to the lower 70s.
High pressure generally persists over the area through the period. but a boundary gets pushed into the TN/OH valley tonight into Saturday night with broad troughing aloft. MAV/MET temperatures look okay but have trended on the warmer side of guidance for Saturday.
411 AM MDT Sat Jul 16 2016 A low pressure circulation along the border with Canada will bring showers and thunderstorms to western Montana roughly Missoula northward today.
High pressure over the southern Rockies will gradually shift east through the weekend bringing an increasingly strong southwest flow aloft to the area.
A mid/upper level trough will also be crossing TN from west to east today, and these features should lead to greater convective coverage today compared to yesterday.
454 AM CDT SAT JUL 16 2016 Upper ridging from near SHV to DRT will help to keep the heat on and limit rain chances to mainly the eastern and coastal areas today. The upper flow should veer a little today and in combination with the gradual increase in low level moisture will carry 20-30 pops generally along and southeast of the Highway 59 corridor.
129 AM EDT SAT JUL 16 2016 A weak cold front will drift slowly southeast of the Ohio River tonight. High pressure will build east across the region Saturday and sunday.
254 AM MDT SAT JUL 16 2016 08z surface analysis had low pressure over central WY with frontal boundary into central SD. Today and tonight, upper low over southeast BC will elongate and shear out as it stretches out over the US/Canadian border. Atmosphere should destabilize quickly today as plume of steep 700-500mb lapse rates overtops dew points pooling in the lower 60s. As upper trough digs across the northwest US, upper ridge builds into the CWA. Upper level ridge over the central CONUS will amplify as a trough develops over the Pacific Northwest.
Upper level ridging will increase for Sun. with high pressure building aloft over the region.
147 AM EDT SAT JUL 16 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.
SHORT TERM (Today through Sunday): 500mb ridge across the southwest United States and northern Mexico extending into Texas this morning will continue to provide subsidence across the CWA today before a weak 500mb low/inverted trough across the western Gulf of Mexico this afternoon moves westward towards the lower TX coast tonight and moves inland across northeast MX and deep south TX Sunday. Temperatures will continue to be hot today and with higher dewpoints across the lower TX coast.
With all of these ingredients and energy moving across the area from the low sitting over Idaho, still expecting convection to develop this afternoon. While the deep layer shear is good, the low level shear is relatively low. Also, there is not much curvature to the low level hodographs which support the lower chance of tornadoes.
Maximum temperatures will be in the low to mid 90s, with maximum apparent temperatures around 100. Minimum temperatures will dip to the low to mid 70s overnight.
The cooling trend that began for most inland areas today will continue through the weekend as an upper level trough deepens along the West Coast.
512 AM PDT Wed Nov 2 2016 Weak high pressure will linger and confine any showers to the vicinity of the North Cascades and near the British Columbia border today.
Today is a similar story to yesterday in regards to high temperatures in the low to mid 80s and potentially another daily record to be broken. It looks like the ridge that has been in place for the last several days will slide east while it begins to erode which will allow for cloud cover to increase today. With that cloud cover in place, overnight low temperatures Wednesday night will be a couple of degrees warmer than the past few nights. Conditions behind the front will quickly become noticeably cooler with clear skies.
Additional TSRA may form along a cold front that will move SE across OK/N TX this evening and overnight.
914 AM EDT Wed Nov 2 2016 A cold front just to our north will stall today as low pressure moves northeast out of the central Plains to the central Great Lakes. The low will continue northeast tonight dragging the cold front through the region overnight into Thursday.