Aikyam-Lab/Synoptic-Bench huggingface dataset:
323 AM CDT WED JUL 20 2016 Impressive anticyclonic motion is evident on this mornings water vapor loop as upper-level ridging holds strong across the central CONUS.
216 AM PDT WED JUL 20 2016 Dry with below normal temperatures today and Thursday as a low pressure system moves northeast through the Pacific Northwest.
138 AM EDT WED JUL 20 2016 High pressure over the Great Lakes will build southeast across Pennsylvania through Wednesday, then off the Mid Atlantic coast by late week.
211 AM EDT WED JUL 20 2016 A cold front will settle through the Southern Middle Atlantic through late morning, then stall and dissipate over southern NC and northern SC this afternoon and evening. A strong upper level ridge over the central U. expect the storm chances to slowly reduce to a slight chance as the cold front slips into the northern zones late. The cold front is expected to settle over NC on Wednesday morning, with slightly drier and more stable air north of the front and moderate instability south of the front again by Wednesday afternoon.
408 AM EDT WED JUL 20 2016 High pressure over the area today will drift eastward off the East coast this evening. This will allow a warm front to lift across the region on Thursday.
217 AM CDT WED JUL 20 2016 Strong upper high, currently located over the central U.
101 AM EDT WED JUL 20 2016 High pressure will build south of the region overnight through Thursday.
329 AM CDT WED JUL 20 2016 Main focus this week will continue to be impacts from an upper level ridge on the area in terms of temperatures and convection. Shower and thunderstorm coverage is expected to be fairly shunted as a result of high pressure subsidence. Dewpoints starting in the mid 70s should fall mainly into the lower 70s with daytime mixing.
Southwest flow aloft Wednesday with the upper low center offshore. Expect mostly sunny skies and warmer temps. 00z models continue to show a fairly strong upper level trough and vorticity center moving across the region Thursday night with showers and thunderstorms.
342 AM EDT WED JUL 20 2016 High pressure over the Great Lakes will build southeast across Pennsylvania through Wednesday, then off the Mid Atlantic coast by late week.
309 AM MDT WED JUL 20 2016 Water vapor shows upper ridge over the nrn plains/upper midwest. broad low pressure covers the nrn plains. very hot conditions expected as thermal ridge peaks over wrn SD. N/NE boundary layer flow behind the cdfnt will usher slightly cooler air through the cwfa.
235 AM CDT WED JUL 20 2016 A stagnant and quiet weather pattern is expected the rest of this week into the weekend, as a broad ridge of high pressure remains centered over the south-central CONUS. The resulting subsidence from the strengthening upper high should result in temperatures pushing the century mark for the first time this summer across much of the area. Medium range models are not in complete agreement on how far west the upper high moves or how much it weakens over our area. 05/ /ISSUED 1144 PM CDT TUE JUL 19 2016/ High pressure will continue to strengthen its influence over our weather on Wednesday. Warming in the mid-levels and slight drying in the low-levels will lead to very limited afternoon convective coverage, relegated well to the east and south of the TAF sites.
344 AM CDT WED JUL 20 2016 An upper level ridge of high pressure will remain centered over the region resulting in another day of hot temperatures.
315 AM CDT WED JUL 20 2016 An upper level high pressure system continues to be the main story early this morning, as it dominates across west TX, the Central Plains and the lower Mississippi Valley. Lack of widespread beneficial rainfall in recent weeks coupled with an upslope sfc regime, and the 500 mb UL ridge nearing 600 dam suggests temps having the ability to warm into the upper 90s today to the upper 90s and lower triple digit readings by the end of this week.
414 AM EDT WED JUL 20 2016 Weak cold front drops over the area this morning, stalling over North Carolina today. The front dissipates tonight as high pressure builds over the region. High pressure prevails through the weekend. Latest surface analysis depicts a cold front just to the north and west of the local area with high pressure over the Great Lakes.
Broad high pressure aloft remains over Oklahoma and Texas Panhandle with a resultant Southwest aloft over Colorado.
653 AM EDT WED JUL 20 2016 Humidity will gradually increase today as high pressure moves away from the area and southerly winds develop.
The bubble of hot air over the Plains will expand into WI on Thursday, ushered in by the low level jet. 925mb temps will be 28 to 29C over central WI by Thu afternoon which will yield max temps in the lower to mid 90s, depending on if we mix all the way up to 925mb. Dewpoint temperatures should be in the lower to possibly mid 70s Thu afternoon, so heat index values are expected in the 100 to 110 degree range.
635 AM EDT WED JUL 20 2016 High pressure over the area today will drift eastward off the East coast this evening. This will allow a warm front to lift across the region on Thursday.
337 AM EDT Wed Jul 20 2016 A cold front will stall out over central Virginia this morning and high pressure will build overhead this afternoon through tonight. The high will weaken and move offshore Thursday.
Overall Florida peninsula will be in the growing weakness between the large upper level ridge stretching from the western Atlantic into the Central US. Models have trended drier for today as ridging has been more pronounced and the trough not quite as deep yet.
153 AM EDT WED JUL 20 2016 High pressure over the Great Lakes builds southeast across the area through Wednesday, then moves offshore Thursday.
344 AM EDT WED JUL 20 2016 High pressure will build south of the region through Thursday.
If convection forms this afternoon, it should be generally confined to the higher terrain features and mainly south of the interstate 40 corridor.
643 AM EDT WED JUL 20 2016 High pressure will build in from the west before settling offshore to the south of New England today. The high will then hold to the south of New England on Thursday. A warm front will approach from the southwest Thursday night, with warm and humid conditions settling in for the weekend.
Enough cooling by morning into the lower to middle 70s over inland areas to promote some 3-5 mile fog but not likely significant to include in ZFP/grids. High pressure ridge will continue to build NW of the region with low level steering flow /1000-700mb/ remaining very weak out of the East off the Atlc. Min temps still generally near normal in the lower-middle 70s inland and upper 70s/near 80 along the coast. Some drier air will work in behind an upper trough dropping south over the western Atlantic.
Otherwise, expect VFR conditions to prevail at area terminals through the forecast period as high pressure strengthens over the area.
1110 PM MDT TUE JUL 19 2016 large high pressure ridge will dominate the weather in the period, bringing hot weather to the region. The fa will remain on the edge of the ridge with perturbed sw flow continuing on the nw side of the ridge, perhaps supporting a shra/ts over far nw sd wed,as one of these impulse advects through the region. Thermal ridge will time over the fa wed, supporting very warm temps under clear skies and deep mixing.
321 AM CDT WED JUL 20 2016 A mid and upper level ridge, centered over Oklahoma, will be the main weather feature over the next several days.
354 AM CDT WED JUL 20 2016 Another warm and humid morning is underway for Southeast Texas with 3 AM temperatures in the mid to upper 70s as the region remains on the periphery of an expansive upper ridge over the Southern Plains. Greater subsidence from the upper ridge and marginally lower moisture levels this afternoon (1. Otherwise, expect high temperatures again in the low 90s along the coast and mid to upper 90s inland. The upper ridge will maintain its influence over the region into into the upcoming weekend, leaving a fairly stagnant pattern for Southeast Texas. Warm and humid mornings with a few showers along the coast will transition to hot and humid afternoons with a stray shower or two generally along and south of the Highway 59 corridor.
132 AM EDT WED JUL 20 2016 An area of high pressure will drift across the Eastern Great Lakes region today, producing clear skies and light winds to the region. As this area of high pressure drifts to the east tomorrow, a southerly wind will increase both the air temperature and level of humidity. Temperatures by early Wednesday morning will be almost cool by mid-summer standards with lows mainly in the 50s and even some upper 40s in the cooler Southern Tier valleys and Lewis County. 850 mb temperatures will warm to about +14C by the afternoon, and thus after a cool start to the morning, high temperatures will peak in the low 80s.
Water vapor satellite channels along with RAP analysis clearly depicts the well talked about H7-H5 ridge that is centered over OK/KS/AR this morning. South-central Texas remains just enough on the ridge's southern periphery were weak easterly waves in the H5-H3 layer are able to help provide lift along with sea-breeze activity to produce isolated shower activity across the coast and into the coastal plains. Energy release component values of fuels continue to climb near the highest 90th percentile for this time of year. Thursday will feature a near similar pattern to today but with even less shower coverage as the mid-level ridge strengthens into northern Texas.
538 AM MDT FRI SEP 2 2016 Water vapor shows upper ridge extending through the nrn plains/upper midwest with strong upper trof pushing into the pac nw. trof extends through ern MT/ern WY/ern CO. With mlcape values of 1000-2000J/KG along/east of the sfc trof and ample deep layer shear. Slightly cooler air will filter into our wrn zones as sfc trof works through the wrn Dakotas.
70") over northern Sonora which will begin to mix into the forecast area today as mid/upper level southwesterly flow strengthens in response to a developing trough along the west coast.
A small upper level trough will move across Western Washington today bringing showers and a chance of thunderstorms. A large upper level trough will remain over the region through the holiday weekend keeping the weather partly to mostly cloudy and cooler than normal with a slight chance of showers. After the shower band has moved through, models indicate the air mass will become pretty unstable late this morning and this afternoon with and immediately behind the upper level trough. W WA will remain under a large upper level longwave trough on Saturday, which will maintain mostly cloudy skies and a chance of showers.
For tonight, temps forecast to fall into the lower 50s, possibly upper 40s for some low spots.
626 AM CDT FRI SEP 2 2016 High pressure will dominate through the period with widespread VFR conditions expected. The actual cold front itself that moved through yesterday is now very difficult to find. In the wake of the front, high pressure continues to build into the Great Lakes States keeping northeast surface flow in place through the period. Upper level high ridging will also be locked in through the period with dry and basically splendid weather expected.
The threat of severe weather is very low, but with SE winds maintaining dewpoints near 60, and a strengthening lee trough, strong winds to 50 mph and small hail are possible from the strongest storms across the NW zones this evening. An upper level ridge will sit above the Plains today through tonight with an upper level long wave trough digging into the Pacific Northwest. Towards the surface, lee troughing will intensify leading to winds from the south southeast. As for temperatures, highs today look to reach around 80 degrees with lows tonight falling into the low to mid 60s. Winds will continue to be from a southerly direction as an area of low pressure intensifies across eastern Colorado.
Cold front extends from north central Montana to just north of Evanston, Wyoming this morning.
High pressure building across the region will allow for northeast winds to approach around 10 knots with higher gusts across area terminals.
Water vapor imagery shows a short wave trough from northeast Texas to the Hill Country moving to the south southeast. Expect scattered convection will form ahead of this short wave trough this afternoon.
As a result, lower level ridging is swinging northward nearer the Florida Keys. Already, recent upper air measurements indicated significant drier air through the lower levels with little to no low level CAPE. Short Term Update - Surface winds will continue to decrease today as the lower level ridge moves near the island chain. Rain chances will remain slight at best due to poor low level instability, drier air in the lower levels, and the slackening flow. Surface winds will relax further through the afternoon as high pressure shifts northwards nearer the Florida Keys.
729 AM EDT Fri Sep 2 2016 High pressure will maintain dry weather and seasonal temperatures through the weekend. Expect highs near/a couple degrees under the seasonal averages as cool advection under upper troughing offsets insolation. Dry conditions will prevail through midweek, but with much warmer temperature as the Southern CONUS ridge rebuilds in the wake of the tropical activity. Patchy MVFR to IFR stratus near DUJ should dissipate as mixing of dry air aloft begins, otherwise VFR conditions are expected through the TAF period under building high pressure. No restrictions expected under high pressure.
1014 AM EDT FRI SEP 2 2016 Northeast low level flow is ushering in cooler temperatures and drier air this morning. Chattanooga Airport, TN 87 66 88 65 / 10 10 0 0 Knoxville McGhee Tyson Airport, TN 84 63 85 61 / 10 10 0 0 Oak Ridge, TN 85 63 85 61 / 10 10 0 0 Tri Cities Airport, TN 79 57 82 57 / 10 10 10 0.
Dewpoints across the region around in the mid to upper 60s across the Highway 82 corridor and in the lower 70s across the rest of the region. In the wake of the front, high pressure and a drier airmass will build south into the region. This process has already begun, as dew points over most locales along and north of the Highway 82 corridor are already being observed in the low and middle 60s. Ridging aloft will increase through the day and overnight as the trough responsible for carrying Hermine northeast and up the East Coast exits east of our region.
Both models indicate that winds within the moist layer will become more westerly towards late morning which will cut off some of this deep moisture from northern portions of the CWA, allowing some sunshine to heat up the lower atmosphere.
Water vapor satellite this morning shows a large upper level ridge extends from the southern Rockies into northwest Ontario.
Rainfall totals have been around 3-6" so far with the higher totals of around 4-8" in Leon and Wakulla counties and in Dixie and Lafayette counties.
BMickelson Previous short term discussion: One last day of hot weather expected, especially across the east, as a cold front pushes through the state today. Models partially split the upper trof as it moves east, with the southern portion digging into the Great Basin over the weekend before lifting north. This will create a slight dry ridge over eastern Montana on Saturday while bringing cooler air into the area. As the upper trof digs south it will pull more Pacific moisture inland.
928 AM MDT FRI SEP 2 2016 Last hot day for awhile in store across the forecast area before a strong cold front moves through the area this evening and overnight. Otherwise, upper trough will track into the northern Rockies today. Significant pattern change starts Saturday as broad upper trough takes over the western states. The latest models are still taking the trough on a path that is more favorable for precip in central Montana than in southern Montana.
Surface analysis late this morning places Tropical Storm Hermine near the Georgia coast while a 1029 mb ridge of high pressure centered over the Great Lakes Region is building in across the Lower Mississippi Valley.
939 AM EDT FRI SEP 2 2016 High pressure will move across New England through Saturday with fair weather and near to slightly below normal temperatures.
1112 AM EDT FRI SEP 2 2016 High pressure will build across our region from Canada this weekend.
Winds in the lowest 2000 feet or so are from the northeast and then are primarily from the north-northwest in the remainder of the lower half of the troposphere. /issued 349 AM CDT FRI SEP 2 2016/ A somewhat complex upper and lower level pattern exist with a ridge extending from Mexico to central Canada, a trough over the eastern 1/3 of the country with Hermine at the base of this trough. The upper trough to the east will be quickly lifting northeast while ridge comes in from the west.
Highs for today in the low to mid 80s may be a bit on the high side in some places but will leave as is per latest guidance. VFR conditions expected thru 03/12Z as generally ridging influences surface and aloft prevail.
627 AM CDT FRI SEP 2 2016 Longwave troughing continues to dig southward across the western CONUS this morning, while upper-level ridging extended northward from the central Plains up into the Great Lakes Region and central Canada. This weekend as persistent troughing over the western CONUS brings southwest flow across the central Rockies, lee troughing will develop across the High Plains.
New development early this morning on the high terrain of eastern New Mexico shows that there is even more energy upstream. As Hermine heads up the East Coast, the upper ridging that has been to our west will nose back into the region.
The moisture that is still available in the lower levels could still enhance a few showers and storms today. Drier air wrap around the high pressure over the Atlantic will continue to make its way into the area with this southerly flow into Saturday. As the system is forecast to move further north and exit the panhandle of Florida, ridge over the Atlantic strengthens allowing for east to southeasterly flow to return across S Florida.
Dewpoints in the lower 60s extend across southwest Kansas into east central Colorado. Higher pressure remains over eastern Kansas tonight and into Saturday as the lee trough deepens along the front range as the upper ridge moves further east and a short wave trough aloft sweeps across the forecast area. Southwest flow aloft remains over the forecast area through the weekend as the upper trough deepens over the western U. As a result, several short wave troughs will lift out across the forecast area with isolated to scattered thunderstorms possible each afternoon through the overnight hours.
Through the Labor Day weekend, Northwest California will be under the influence of a slow moving upper level trough. This will bring in more clouds and slightly cooler temperatures for the interior locations. As of early this morning, a short wave trough is slowly moving through the Pacific Northwest. Northwest California is on the southern fringe of this upper level trough.
1257 PM EDT FRI SEP 2 2016 A strong high pressure centered from James Bay to northern Wisconsin will move southeast into the Lower Great Lakes through Saturday. Highs today will be in the lower to middle 70s. Lows tonight will again be pleasantly cool, in the lower to middle 50s.
A broad upper level trough will keep the possibility of unsettled weather over WA and OR.
High pressure to the west will maintain a light northerly flow and VFR conditions today. /issued 407 AM CDT FRI SEP 2 2016/ SHORT TERM (Today through Saturday): 500mb ridge axis across Northcentral Mexico extending north into New Mexico becomes elongated southwest to Northeast across Texas Saturday. Best rain chances today and this evening will be across the Northern and western zones west as weak perturbations rotate around the high.
607 AM CDT FRI SEP 2 2016 247 AM CDT High pressure dominates the pattern through the weekend leading to continued dry conditions.
Specifically, a Pacific trough will move inland and across the Mountain West this weekend, with a resulting dry southwesterly flow aloft.
Strong 1028 mb high pressure centered just north of the Great Lakes will maintain over the next day bringing mostly clear skies aside from shallow afternoon cumulus cloud buildups. A steady light E-NE breeze will continue due to pressure gradients on the periphery of the high. Little air mass change from the previous day in this pattern will produce another cooler than normal day with highs in the upper 70s and dry dewpoints in the mid to upper 50s. 1028 mb Canadian high pressure around Lake Superior and into northern WI will track into the eastern Great Lakes by Saturday afternoon while upper level ridge from the central plains into MN shifts east into IL. Temperatures 1-2 degrees warmer than today with highs near 80F while comfortable dewpoints easing up into the upper 50s to near 60F by Sat afternoon.
1016 AM CDT Fri Sep 2 2016 Morning IR and visible satellite imagery depicts a large swath of cirrus and cirrostratus cresting the H500 ridge axis along the Missouri River and streaming south towards Iowa.
Water vapor loop indicated an upper level trough was rotating through the Pacific Northwest. Trough is expected to intensify as wave moves northeast into northern Sask on Sat. Then trough is forecast to move east to Hudson Bay by 84 hours. Upper trough will send a cold front into the area Sun. Another short wave trough extended from UT to western MT. Trough will move across the region this evening and may produce some showers/thunder. Water vapor loop indicated another short wave over the eastern Pacific and is forecast to dig a larger trough over the west coast Sat night.
745 AM EDT FRI SEP 2 2016 Aviation The entire holiday weekend will be dry and pleasant with sunny and warm days but cool nights, thanks to persistent high pressure and a dry air mass.
Wind and seas will gradually diminish and subside later tonight and into the upcoming weekend as weak high pressure from the Atlantic re-establishes itself over the region in the wake of Hermine with a lighter east to southeast wind flow returning to the waters with an afternoon onshore sea breeze component developing along the coast each afternoon.
High pressure extends from the Great Lakes Region to Texas this morning. Between this ridge and Hermine which is moving across Southern Georgia, the flow remains northerly. This will allow for a very slightly cooler and drier air mass to filter into the region today, however a few showers and storms will be possible, but mainly along the coast today and tomorrow.
The most noticeable weather phenomena today will be the cooler temperatures and mid/high level cloudiness.
Lows tonight will range from the lower to middle 70s inland and the middle 70s along the immediate coast.
1024 AM EDT FRI SEP 2 2016 High pressure will build into the Great Lakes region through Labor Day. As H5 trof swings down through the ern lakes today, expect clouds from nrn Ohio to develop across mainly nrn portions of the fa. The edge of the high clouds from Hermine could brush the se counties this afternoon. As pressure gradient tightens between high pressure to the north and Hermine, winds should pick up and gusts in the 20 to possibly 25 mph range will be possible.
624 AM CDT FRI SEP 2 2016 Manual upper-air analysis at 00z revealed a prominent ridge from central Canada into the central Plains with bracketing troughs along the Pacific Northwest Coast and over eastern Canada into the lower Great Lakes and Ohio Valley. The ridge will begin to break down as it shifts east over the next 24 to 48 hours in response to the amplification and inland movement of a mid-level trough over the western CONUS. trough, the first of which will traverse portions of the northern and central Plains later today into tonight.