Aikyam-Lab/Synoptic-Bench huggingface dataset:
1041 AM EDT Mon Oct 3 2016 A large upper level low will lose it's grip on our weather as it moves into New England today. Have reissued an SPS for Hardin, Mercer, Auglaize, Logan, Union (OH), Delaware, Franklin (OH), and Licking counties to account for the low clouds/ patchy dense fog across the north. 12z KILN sounding) and high pressure moving in. Prev Discussion-> Upper low over the eastern Great Lakes to move into New England this afternoon. Highs to range from around 70 north to the lower/middle 70s south. The ridge axis slides a little east Tuesday with a southerly flow developing. Amplified upper air pattern will keep weather systems moving slow with broad trof developing over the western US.
1249 PM EDT Mon Oct 3 2016 Weak low pressure will dissipate today as it moves into New England.
1218 PM EDT MON OCT 3 2016 Currently - The Florida Keys are situated between a large high pressure system over the eastern United States and Hurricane Matthew in the central Caribbean Sea. Meanwhile, a upper level trough extends down the Mississippi Valley and through the Gulf of Mexico.
Otherwise, clear skies are in place over northern Alabama and Southern Middle Tennessee, courtesy of high pressure. Thus, we have trended toward the lower side of MOS guidance for low temperatures tonight.
552 AM MDT MON OCT 3 2016 12Z TAF CYCLE Surface winds are already increasing over the high terrain and western NM before sunrise. Winds will veer to the W thru late afternoon then NW in the evening as a cold front approaches from the Four Corners. An upper level low pressure system will eject northeastward from the Great Basin across the northern Rockies today steering stronger winds over New Mexico and triggering some mainly morning showers and thunderstorms. A cold front will also cross from the Pacific this afternoon and tonight.
251 PM CDT FRI JUN 17 2016 Surface/lower tropospheric high pressure located through the Great Lakes region will continue to be the dominate weather feature tonight and Saturday, producing easterly flow and the advection of lower dew points into the area.
255 PM EDT FRI JUN 17 2016 High pressure will provide a fair weather pattern through the weekend.
203 PM EDT FRI JUN 17 2016 A large high pressure system, will build over the region through the weekend. By Sat night an impressive upper level ridge will be centered over the desert southwest and a mid-lvl ridge will be centered over much of the eastern CONUS.
A building upper-level ridge across the central US will allow warm temperatures to surge into the mid-plains region.
414 PM EDT FRI JUN 17 2016 High pressure will build in for the weekend, bringing in dry conditions and less humid air.
208 PM MDT FRI JUN 17 2016 Large upper ridge stretching across much of the CONUS is resulting in southwest flow over the CWA. Behind the cold front that is draped across the northern plains, winds are generally northeasterly around 10-15 kts across the CWA. Upper ridge strengthens over the region on Saturday. As an upper trough moves through southern Canada, a cold front at the surface will push through the northern plains.
1034 AM PDT FRI JUN 17 2016 A deep low pressure system will remain near on the Washington and Oregon coast. Expect cool and wetter conditions late tonight into Saturday with most areas will experience showers, as the low pressure system moves through the region.
An upper level low pressure system off the Oregon coast will slowly lift north and cross the Olympic Peninsula Sat evening, keeping a showery air mass over the region. High pressure will build over the next couple of days for dry and warmer weather.
500 PM MDT FRI JUN 17 2016 Upper level pattern continues to be dominated by large scale ridge across the central US. A cold front is moving into northeast Colorado and is just now moving into NW Yuma county. As cold front sags south and LLJ kicks in we should see an increase in thunderstorm coverage, with activity possibly lingering into the night. Regarding Severe Impacts: While this type pattern generally favors pulse type thunderstorms, the high CAPE profiles and higher ELs raises the possibility for taller updrafts and larger hail potential. Saturday: We will be post frontal with a slightly "cooler" air mass in place. Complicating things will be position of ridge center and how soon it moves into our CWA.
Lower dewpoints and drier air will gradually filter in this evening and tonight as heights increase aloft downstream of approaching upper ridging spanning from the Four Corners region of the Desert Southwest to the Great Lakes. Lows will dip into the mid-upper 50s in valleys and low-mid 60s on ridges. Deep layer ridging will build stronger into eastern Kentucky for the beginning of the weekend, leading to temperatures rebounding into the mid 80s Saturday afternoon underneath plenty of insolation. Saturday night will feature a conducive setup for radiational cooling as temperatures bottom out in the low-mid 50s in valleys and upper 50s to lower 60s on ridgetops.
246 PM CDT FRI JUN 17 2016 18z surface data had high pressure over the Great Lakes.
Weak high pressure continues to build over western and central ND. 20 UTC surface analysis shows cold front has pushed into far southeast North Dakota. On saturday the front that moved through today lifts back north as a warm front with warm southeast flow returning to the region.
252 PM CDT FRI JUN 17 2016 Temperatures in the lower 90s across the region at this time with heat index values ranging from around 100 to 106 degrees. A weak surface boundary within a region of very unstable air with dewpoints in the low to mid 70s across central Arkansas will contribute to afternoon convection along and mainly north of the Interstate 30 corridor.
/issued 406 AM CDT FRI JUN 17 2016/ (Today and Tonight) Upper level ridge will strengthen over the Southern Rockies today, pushing 850 mb temperatures up a couple more degrees.
342 PM CDT FRI JUN 17 2016 Starting to get some storm development late this afternoon along the cold front moving into southeast South Dakota. As this occurs, the cold front will return back north as a warm front through Saturday and Saturday night with the llj increasing into Saturday Night. With weak short waves coming across the region from the southwest through Saturday night along with the warm front lifting north, kept chances of storms in the forecast for this time. Saturday will also be a little warmer along with humid conditions.
125 PM EDT FRI JUN 17 2016 Cooler and drier air will filter in as high pressure builds into the region.
214 PM EDT FRI JUN 17 2016 Building high pressure will ensure a dry and seasonal weekend. Much drier boundary layer air is leaping the ridges as well as edging down from western New York into the I-80 and Turnpike corridors. Dewpoints across the northern reaches of the CWA are falling into the lower 50s already, and mid 50s are present just west of the ridges already as well. The higher dewpoints are shrinking rapidly with the mid-cloud deck, which should become totally eviscerated by mixing and dry advection within the next couple of hours. As clouds fade and drier air becomes entrenched, a much cooler overnight looks to be in store for the entire CWA with most areas in the 50s.
342 PM EDT FRI JUN 17 2016 High pressure will provide a fair weather pattern through the weekend.
1212 PM CDT FRI JUN 17 2016 The upper level ridge, that has allowed temperatures to climb this week, will remain in place across the Central Plains into the weekend.
High pressure over northern Mexico will intensify over the next several days.
A back door cold front will push into east Alabama Saturday morning, and this front will be the focus for afternoon scattered showers and few thunderstorms, so best rain chances will be confined to southwest counties.
229 PM EDT FRI JUN 17 2016 A large high pressure system, will build over the region through the weekend. Upper level ridge will sprawl across NY and PA and much of the northeast U.
443 PM EDT FRI JUN 17 2016 High pressure will settle across the Great Lakes through the weekend with abundant sunshine and temperatures warming to above average.
319 PM EDT FRI JUN 17 2016 High pressure will continue to build over the region thru Sat.
An upper low over the Pacific northwest coast moves inland into northern Idaho. Several disturbances will eject out ahead of this low and move across north central Montana. As this low moves northeast it will swing a strong cold front across our western areas late in the afternoon or early evening and the remaining portions of our forecast area Saturday night. A strong cold front will sweep across the forecast area Saturday evening.
SHORT TERM (Tonight through Saturday Night): H5 trough finally starting to drift westward now, with large-scale trough dropping down the East Coast. The ridge should remain strong enough locally during the next 36 hours to inhibit shower formation, but there may be enough instability aloft tomorrow for a few more clouds than today.
High pressure will dominate our weather regime tonight and Saturday. As high pressure slowly moves east tomorrow, southeast winds will gradually develop over the region. 925mb temperatures in the low 20s C correlate to above average highs in the 80s (with near shore temperatures in the 75-80 range).
122 PM EDT FRI JUN 17 2016 High pressure will build from northern Ontario and into the Great Lakes through the weekend with abundant sunshine and temperatures warming to above average.
242 PM CDT FRI JUN 17 2016 Northerly mid level flow above the PAH forecast area is progged to slacken this weekend as a ridge gradually builds across the eastern half of the CONUS. An inverted trof-looking feature in the low levels may induce a subtle increase in cloudiness for us from time to time over the weekend, but measurable pcpn is highly unlikely. Large expansive ridge will retrograde west as heights eventually fall due to a developing trof that will set up over the east U.
240 PM EDT FRI JUN 17 2016 A cold front will push southeast through the region today and tonight.
Models consistent in building in high pressure from the east late tonight into Saturday with fairly strong easterly low level flow.
Surface obs were showing dew point temps in the low/mid 70s extending along an inverted surface trof from eastern Kansas into eastern South Dakota.
607 PM EDT FRI JUN 17 2016 Building high pressure will ensure a dry and seasonal weekend.
101 PM EDT FRI JUN 17 2016 Low pressure will move southeast across the virginias to the mid atlantic coast early today as high pressure builds in from the north.
105 PM EDT FRI JUN 17 2016 High pressure and dry air remain firmly in control of the Great Lakes region this morning. Overview: large scale pattern features troughing along both coasts of NOAM and sharp ridging/very warm air through the plains and just into the western Great Lakes. Temps this afternoon will warm into the middle 80s for much of the area, with the usual cooler readings near the lakes. IMPACTS: None PATTERN SYNOPSIS/EXPECTED EVOLUTION: Saturday morning, positively tilted H5 troughs sit along each coast, with a broad area of highly amplified, positively tilted ridging spanning from Baja California through Quebec. Good agreement for the ridge axis to fold through Michigan through the day Saturday.
However, temps have warmed up towards 90 degrees as of 16Z even with scattered to broken cloud cover in place ahead of the cold front. The cold front is currently draped across the TN border and will progress southward throughout the day. The higher chance of precip will be along and south of the TN River this afternoon with a strong to severe storm possible. This is due to the steep low-level lapse rates, plentiful CAPE, 2 inch PWATS and mid-level dry air in place ahead of the approaching cold front. JMS For 18Z TAFs: Cold front continues to shift swd with greatest threat for shra/tsra now south of both terminals.
(700-200 MB),Latest available IR imagery as of 200 Pm overlaid with model streamline analysis depicts the axis of a middle and upper level trough oriented across the Northeastern and Middle Atlantic States from Atlantic Canada down to North Florida. To the west, there is a rather exceptionally deep and record warm as well as expansive anticyclone now centered near NW Old Mexico which is continuing to build eastwards towards the Mississippi Valley and the Central Gulf near 90 W. Across the tropics, a middle and upper low is migrating westward and approaching Haiti. At the surface and in the lower to middle levels. The cloudline was active across the upper, middle and portions of the lower keys attm, but showers have fizzled atm.
351 PM EDT FRI JUN 17 2016 High pressure will continue to bring quiet weather to the area through the weekend.
water vapor shows strong upper level low over the oregon coast and high pressure over the central united states. a more intense wave comes into the state during the day with a cold front moving through in the evening on overnight hours.
305 PM EDT FRI JUN 17 2016 A large high pressure system, will build over the region through the weekend. Upper level ridge will sprawl across NY and PA and much of the northeast U.
213 PM MDT FRI JUN 17 2016 Storms are starting to form over the higher terrain of Larimer county with increasing clouds over the mountains. For Saturday the upper level ridge that dropped south of the last few days will make its way north back into Colorado helping to stabilize the region. Convection will be stalled with increased warming in the mid levels due to the incoming ridge for tomorrow afternoon.
318 PM CDT FRI JUN 17 2016 Mainly a quiet day across the mid state today as the cold front is just south of the area, allowing showers and thunderstorms to develop from northern MS through northern GA. Slightly cooler temperatures can be expected this weekend in the wake of the cold front to be around seasonal normals.
217 PM CDT FRI JUN 17 2016 Upper ridge centered near ELP today stretches northward up to the Great Lakes region.
/issued 948 AM EDT FRI JUN 17 2016/ The pattern aloft this morning features a large and strong ridge across the central part of the country followed by a trough across much of the east coast, with its axis extending southward over Florida. At the surface, an area of low pressure is centered just off the coast of the Carolinas with a frontal boundary extending into the southeast. High pressure over the Atlantic extends westward to the south of the state and into the Gulf of Mexico. The high pressure axis south of the state along with a front approaching from the north will keep a westerly flow in place through today and most of Saturday.
tonight's min temperatures will remain warm and muggy with lows in the low to mid 70s inland and mid to upper 70s coastal. the frontal boundary is expected to be to the south of the Fcst Area stalled over the northern Gulf with slightly cooler, drier airmass over the area.
Brong Low pressure will continue to produce breezy winds through Saturday.
A weak cold front has stalled along the Laramie Range, with low-lvl upslope taking shape across the high plains. A weak cold front will slip across the plains this morning.
Meanwhile mid-upper ridging will be building over the region from a 600 dkm high from the plains.
Another round of convection could develop tomorrow morning as a cold front approaches from the north.
1225 PM CDT FRI JUN 17 2016 Upper level ridge axis leaning over the Great Lakes over the next couple days.
H85 ridging over the Ohio Valley area should allow drier air to advect over the Central Plains states through the weekend while H7 temperatures are progged to rise resulting in an increasing cap strength and decreasing chances for precipitation.
203 PM EDT FRI JUN 17 2016 High pressure will build from northern Ontario and into the Great Lakes through the weekend with abundant sunshine and temperatures warming to above average.
/Tonight/ High pressure still off to the east with return flow into ERN NE/far western IA and ERN SD.
At 18Z, low pressure was centered near the OK/CO/NM/KS border areas, with a secondary low centered in southeast SD. Moisture was pooling along the boundary between the low centers and to the northeast of the low, and a cu field was apparent on visible satellite imagery in east central SD through north central NE and also in central to southeast NE.
604 PM EDT FRI JUN 17 2016 In the wake of a cold frontal passage, abnormally dry and cool high pressure will build in over the weekend.
* None A high amplitude ridge axis, an extension of the strengthening subtropical ridge across the swrn US, will expand into the wrn Great Lakes today and tonight. Good mixing depths within the dry air will push afternoon highs into the low to mid 80s, with the northeast winds holding temps several degrees cooler along Lake Huron. Southern Mi will remain under the influence of the upper ridge through the weekend.
with southern areas warming up a little more and cloud cover across the north keeping temperatures a few degrees cooler than originally expected. Strong ridge centered over the central U.
The rest of the area has continued to remain slightly cooler with heat indices mainly between 100 and 104 degrees. Even with highs a couple degrees cooler tomorrow, this will result in Heat Advisory criteria being reached once again for Haskell and Throckmorton counties as well as Shackelford and Jones counties.
112 PM CDT FRI JUN 17 2016 Morning analysis has upper level ridge dominating the plains. A trough off the pac NW coast with another one over New England and the mid Atlantic. Clear skies with generally light winds, however temps remain very mild due to the thermal ridge over the region. a trough is positioned from a low in S Dakota to the sw towards the front range. A cold front is still to the west. Behind the trough yet ahead of the cold front along with a low level jet will continue to bring the chance for thunderstorms. A strong area of upper level high pressure continues to dominate the weather across western and north central Nebraska, as well as much of the central and southern plains and desert southwest.
Will only likely see cirrus from the system spill over the top of the ridge and across northern WI through the rest of the afternoon. High pressure will remain at the surface while a strong ridge builds in aloft. A surface cold front will make little progress to the east over northern Minnesota and any mid-level moisture transport looks to remain northwest of the region. Highs in the low to mid 80s.
350 PM CDT FRI JUN 17 2016 Latest surface analysis continue to show a ridge of high pressure from the Florida Straits to northwest Gulf of Mexico. Latest upper air analysis showed a trough axis from the North Carolina coast to North Mississippi and ridge axis from Texas to the western parts of the Great Lakes. With the upper level ridge will continue to expand northeast to east from Central Plains to Mid Atlatic States through the weekend. Upper level trough axis will push south through this evening, overnight and Saturday.
1146 AM MDT FRI JUN 17 2016 Upper level analysis has ridge dominating the weather pattern across the central CONUS with troffing across the Pacific Northwest. The breezy north to northeast winds will bring slightly cooler temps into the area, with highs mainly in the 80s. Saturday, upper level ridge will rebuild across the northern plains bringing well above average temperatures back to the area. Upper ridge remains across the area through Saturday night, with temperatures only cooling into the 60s and 70s across the SD plains. As a quick moving upper trough moves through Canada, a cold front at the surface will push through the northern plains.
As the lower levels cool, clouds will develop with MVFR cigs expected along the I-35 corridor around 06Z and at KDRT around 09Z. The good news for Saturday is 1000-500mb thicknesses should decrease a bit across the eastern part of the state in response to the main upper ridge center beginning to elongate and shift northward.
1253 PM MDT FRI JUN 17 2016 A low pressure system off the Pacific Northwest coast will begin to lift north over the next 48 hours. A cold front will arrive Saturday afternoon.
The pattern aloft currently features a large and strong ridge across the central part of the country and a trough across much of the east coast, with its axis extending southward over Florida. At the surface, an area of low pressure is over the Carolinas with a frontal boundary extending across the southeast. Similar to today, activity is expected to be moving ashore in west winds and then consolidating over inland areas through the afternoon, where the highest rain chances are currently forecast. Expansive upper level ridging is forecast to be centered over the southern Rockies during the second half of the weekend, with an amplified trough digging in just offshore from the eastern seaboard.
227 PM CDT FRI JUN 17 2016 High pressure over the central Great lakes will move little through tonight. Winds should drop off this evening as a combination of decoupling and reduced flow aloft as the 500 mb ridge axis moves into Illinois.
1240 PM CDT FRI JUN 17 2016 Have updated the HWO and related graphic to reflect the highlighted threat of strong to severe thunderstorms. /issued 407 AM CDT FRI JUN 17 2016/ A slight moderation in the heat for portions of the Midsouth east and north of the Memphis metro today, as lower dewpoints spread in behind a weak backdoor cold front. At 3 AM CDT, this cold front had passed through Paris, TN, with upstream dewpoints in the lower and mid 60s over the western Ohio River Valley. Relief from the high dewpoints will prevail areawide for the weekend.
235 PM CDT FRI JUN 17 2016 235 PM CDT A quiet night ahead with high pressure drifting overhead.
with southern areas warming up a little more and cloud cover across the north keeping temperatures a few degrees cooler than originally expected. Chattanooga Airport, TN 69 89 65 88 / 10 0 0 0 Knoxville McGhee Tyson Airport, TN 66 87 60 86 / 10 0 0 0 Oak Ridge, TN 67 87 61 86 / 0 0 0 0 Tri Cities Airport, TN 60 84 55 84 / 20 0 0 0.
A SSW breeze in the BL this morning over much of South TX has allowed for continued drying of the low levels and resumed reductions in early afternoon dewpoints. The Head Advy continues for the Coastal Prairies, but only a few locations are expected to exceed the threshhold of 108 degrees due to the lower dewpoints. The weakened surface pressure gradient and lower dewpoints should allow more areas to drop into the low 70s tonight. As high pressure aloft continues to build northward into the plains states, a mid-level shear axis currently over the mid-Mississippi and Arkansas River basins moves south into East Tx late Saturday.
A ridge aloft is centered over Northwest Mexico and stretches into the north gulf coast while the sub-tropical ridge stretches into the area as well. Tonight into Saturday the upper ridge will shift west while a weak backdoor front approaches from the NE. With out the ridge aloft in place scattered storms can be expected.
WHICH IS ASSOCIATED WITH A SHORT WAVE EMBEDDED IN SOUTHERLY FLOW ALOFT AHEAD OF AN OFFSHORE LONG WAVE TROUGH. MORE WAVES WILL FOLLOW TONIGHT AS THE LONG WAVE TROUGH EDGES CLOSER TO SHORE. THE TROUGH WILL MOVE ONSHORE SATURDAY MORNING AS A STRONG SHORT WAVE MOVES THROUGH IT. ONCE THE TROUGH KICKS OUT TO THE EAST SATURDAY AFTERNOON. IT WILL WARM AND DRY OUT RAPIDLY AS A THERMAL TROUGH DEVELOPS NEAR THE COAST.
604 PM EDT FRI JUN 17 2016 High pressure will continue to build over the region thru Sat.
226 PM EDT FRI JUN 17 2016 Cool and dry high pressure will build into the region for the weekend. Another cold front will approach the region toward mid week. The combination of the loss of daytime heating and the passage of the mid/upper level trough will end the threat of any brief showers. Lows tonight are expected to range from the lower 60 north to the upper 60s SE. Cool high pressure will build/extend into the area this weekend, while low pressure remains well off the Carolina coast. This will result in a cool, but dry northeasterly flow with temps expected to be in the lower 80s for highs and lows in the mid to upper 50s, with a few usual rural cold spots dipping into the lower 50s.