Aikyam-Lab/Synoptic-Bench huggingface dataset:
433 AM CST Fri Feb 10 2017 Temps will be flirting with record highs today as overhead ridging dominates the weather pattern. Winds will veer to the west as the lee trough currently in place across across eastern NM and CO pushes eastward. Also assisting in the warm temps today will be thermal ridging with the axis being situated across the TX Panhandle and northern Rolling Plains co-located with the highest forecasted temps. Winds will be on the breezy side, 20-25 mph, and will help to create elevated fire weather conditions as the abnormally warm temps help lower min RH values to the low teens.
549 AM CST Fri Feb 10 2017 As high pressure continues to move to the east, strong southerly winds will return to the area and bring a start to a warming trend. However, much warmer temperatures is expected by this afternoon with mid 40s along I-74 to the mid 50s in southwest IL. Temperatures will fall tonight, but due to the continued southerly warm air advection, temps will not fall to below freezing, and should range front the middle 30s in the north to the lower 40s in the southeast.
624 AM EST Fri Feb 10 2017 Aviation A low pressure system centered over North Dakota will track eastward today through the Northern Great Lakes region.
448 AM MST Fri Feb 10 2017 Another mild morning with temperatures currently in the low to upper 40s at most low elevation locations in the CWA and upper 20s to upper 30s in the mountains.
547 AM CST Fri Feb 10 2017 Upper level ridging continues to dominate our weather today. At the surface a high pressure is moving east, while lee troughing is developing over the High Plains. The upper level ridge begins to breakdown late tonight as an upper level trough moves into CA. As it does so a west-east oriented warm front will push north and become quasi-stationary between HWY 36 and I-70. This could change though if the warm front stalls further north or further south than the current forecast. Additionally, areas along the warm front have a chance of rain Saturday. The upper level trough over CA will split into a northern wave and southern wave.
Overnight, temperatures will be warmer with temperatures in the lower 60s.
This wl allow for warmer air to begin returning to the area. A CDFNT, trailing SEWD fm the low wl enter NW AR Sat night, and eventually be located ovr Cntrl AR early Sun mrng.
Hot 850 mb air is descending onto the lower plains today, with the warmest air arriving by the evening around 24 degrees C. Saturday morning, a cold front will be approaching the area, with north winds, however it's quite relatively cooler air. Most models are developing broad low pressure ahead of the front across the OK panhandle into eastern KS by the end of the day, resulting in a large temperature gradient between Liberal and Hays.
956 AM EST Fri Feb 10 2017 High pressure will move offshore the Carolina coast today. High pressure in place over the Carolinas will move offshore today in concert with the strongest height rises aloft. As such, lows tonight will be 10F+ warmer than this morning, in the mid 30s. With broad ridging aloft, expect partly cloudy to mostly sunny skies with highs Sat afternoon much warmer than today, in the mid/upper 60s. With ongoing airmass modification and a potential for low stratus development Sat night, expect mild low temps in the lower 50s Sun morning.
Upper air analysis revealed a trough approaching the West Coast, a broad ridge over the middle part of the country and northwest flow over Plains and Mississippi valley.
No rain is expected until tonight and warmer than normal temperatures are on track for this afternoon. Looking aloft, a broad ridge across the CONUS will support warmer than normal temperatures (highs climbing to around 70-75 degrees). Relatively thin cirrus on the eastern half of the ridge will continue to move overhead today. Isentropic lift in the lowest levels of the atmosphere is expected to generate increasing low clouds and possible drizzle or light rain across parts of the forecast area by Saturday morning.
The low level jet this morning is around 55-65 kt and resides around 900 mb. At the same time the low level jet will veer and shift eastward as a weak cold front approaches from the north. A relatively dry profile in the lower levels should mean that mixing will cause dew points to remain fairly low despite the advection pattern. Therefore expect the minimum RH values to reach the lower 30 percent range and possibly the upper 20s. The wind gusts will range from 20 to 35 mph with the higher gusts expected mainly across east central KS, which will gradually decrease through out the afternoon. By the noon hour, boundary is into the northern counties and will hold their highs in the 50s while the southern counties rise into the low 70s.
High pressure over the Carolinas will build SE into the Atlc Coastal Waters through the day and will provide for Sunny and Cool conditions with highs near normal in the 60s today. High pressure builds further offshore with ridge axis back across NE FL/SE GA and expect clear skies and cool overnight lows in the 40s inland and near 50 along the coast.
A flat upper ridge will reside across Plains today, with a strengthening lee trough at the surface. A few readings in the lower 80s will be possible across the western Big Country.
543 AM CST Fri Feb 10 2017 H5 analysis from earlier this evening has low amplitude ridging across the western CONUS centered along the Rocky Mountains. A trough of low pressure extended from off the coast of British Columbia south into the eastern Pacific. Further east, a trough of low pressure extended from Hudson Bay south into New England.
Much warmer air aloft moves into the region today with 850mb temperatures warming from around -6 C at 6 AM this morning to +12 to +13 C by this afternoon. This will be the area to watch on Saturday as a trough moves across the region. It appears any precipitation that would fall would be pretty light and if surface temperatures stay above freezing, shouldn't cause major travel impacts.
640 AM EST Fri Feb 10 2017 High pressure will build across the region through the weekend.
523 AM EST Fri Feb 10 2017 Last evening's mid-upper level RAOB analyses indicate rising heights from the Rocky mountains to the Appalachians, supporting high pressure which is quickly spilling southeast through the southern Appalachians. A short blast of cold air advection appears likely between 12 and 15Z this morning, which should crank northeast winds up to the 20 to 25 knots range, and lower dewpoints into the upper 50s in the Lower Keys.
The cold front has moved across central Cuba this morning. As the ridge moves eastward, cold air advection will be cutoff and winds will shift more easterly overnight. Mid level high pressure will engulf the southeastern Gulf of Mexico through midweek, keeping rain chances at bay.
600 AM EST Fri Feb 10 2017 Cool high pressure over the area will move off the Southeast coast late today through tonight, bringing a warm southwest flow into the region over the weekend. The latest surface analysis shows high pressure building in from the NW, and as it shifts overhead and to our SE through the day, we'll retain very dry low level air, with light/variable winds increasing from the SW. -GIH Heights aloft will continue to rise over the area as broad flat ridging expands across the southern CONUS.
HRRR and RAP both have high temps across this area ranging from the low 60s to the low 50s north. Have started to trend the highs warmer across this area for today. Early this morning, high pressure was analyzed over the southern Mississippi River valley. Across the area, southerly winds were beginning to return much warmer air to the region.
Interestingly, Melbourne airport got down to 47 degrees and Fort Pierce airport reached 49, but in between at Vero Beach's airport, the low was 60. Cool high pressure centered along the Carolina coast will sag southeast, which will allow local winds to steadily veer from north and become northeast-east by sunset. So after a chilly start, temps will steadily modify and highs will be in the lower 70s, except upper 60s along the Volusia coast and mid 70s in the south.
Some midday sprinkles could develop over the SErn counties where moisture is slightly deeper and some Coastal troughing could generate some shallow isentropic lift.
High pressure will lead to another round of unseasonably warm weather today. A period of active weather is forecast for this weekend as a low pressure system brings cooler temperatures, rain and some high elevation snow to northern Arizona.
526 AM CST Fri Feb 10 2017 The warmer air has arrived. A low pressure system currently located over North Dakota and the International Border will continue to shift the winds to a zonal component during the day. The warmest temperatures will occur west of the I-29 corridor and the downslope area of the Buffalo Ridge with highs reaching the low 50s. Lowered pops in the morning from given Superblend with dry air in the lower levels initially. Although it will be a cooler day in a northerly low level flow, any precipitation will be in the form of rain with highs in the 40s.
The 12z sounding shows low atmospheric moisture content as indicated by the low precipitable water value of 0. The only notable change from the 00z sounding is a shift in the low level winds from the east-northeast to the southeast. This indicates that a ridge axis has shifted to the east of the area during the overnight hours.
High pressure will be centered over the area during the day, so light winds and slightly warmer temperatures with plenty of sun. By tonight, the high pressure system will slide eastward and a southeasterly flow will return at least across the western half of the area.
830 AM EST Fri Feb 10 2017 High pressure over the central coastal Piedmont early this morning slides to the southeast and slips off the SC/VA coast late this afternoon with a relaxing gradient. High pressure north of Fl.
/Today through Tonight/ Upper ridging will continue to build across the central United States today with strong warm advection across the Midwest. This rise will only accelerate after sunrise with the thermal ridge pushing into the state.
Not as much subsidence as yesterday but winds aloft definitely strong enough to warrant continuation of the high wind warning. Cooler temperatures in the wake of the cold front. Cooler overnight low temperatures with clearing skies and a colder airmass in place.
High pressure over GA/NC will continue to track off to the east pulling warmth and moisture from the Gulf into the region. Strong upper level ridging should keep the area capped today and Saturday.
High pressure moving from the central Appalachians to the Carolina coast today and into the western North Atlantic tonight will provide the Ohio Valley with southerly low level flow. Meanwhile, low pressure will gradually develop over Kansas with a warm front reaching ENE into the Midwest. Also, afternoon highs will be in the lower and middle 60s, so we have that going for us.
553 AM EST Fri Feb 10 2017 Arctic high pressure exits this morning. Quick warm-up through this weekend, with warm front crossing Saturday.
Anorth trough of low pres will swing across the area today, bringing more showers and another burst of wind to coast, albeit weaker than yesterdays system. High pressure builds Saturday, but a couple weak disturbances in northwest flow aloft will maintain some shower activity across much of the area.
1009 AM EST Fri Feb 10 2017 High pressure will build across the region through the weekend.
The center of the high will shift eastward off the Carolina coast and weaken by tonight. High pressure will move offshore by Saturday night, with southerly flow setting up across much of the CWFA.
Heavy precipitation in the low level north to northwest flow will mean upslope flow for the areas south and east of the Snake River, including much of the Interstate corridors. The low may be moving slower, as the heavy precipitation will not let up until Tuesday morning.
This afternoon an h500 upper low over the northwest US will kick east and track toward Nebraska and South Dakota. 4 near Mobridge to around 0. As the low moves east nam/gfs/ecmwf all support some gusty northwest winds across the new snow on Tuesday and Tuesday evening.
314 PM CST Mon Jan 23 2017 Upper ridging in place over the Southern and portions of the Central Plains between upper troughs along the West Coast and southeast states. Lead wave from the upper trough makes its way into Wyoming tonight and on east into the Plains Tuesday. Temps starting off much cooler than expected in northeast areas and this makes for a challenging temperature forecast as southeast winds increase under a strong southwesterly low level jet. Highs still expected to reach the lower 50s to lower 60s in the warm sector.
1154 AM CST Mon Jan 23 2017 The main concern in the near term will be the potential for patchy fog again this morning, especially over part of the western CWA where skies are clearing and winds are diminishing with high pressure moving into the area. Upper level ridging will build into the region late in the day today in response to a upper level trough digging down the west coast. This upper level trough will move into the central Plains Tuesday forcing a associated cold front into the eastern Plains by Tuesday afternoon. Strong WAA will allow temperatures to warm into the low to mid 60s across the southern CWA while cloud cover across the northern CWA will keep highs in the upper 40s to near 50.
Expansive upper level low will exit off the mid Atlantic Coast overnight, however low level moisture will continue to linger. Progressive upper ridge moves overhead Tomorrow and tomorrow night with a dry forecast expected.
The forecast has trended slightly cooler with overnight lows as a result.
1106 AM CST Mon Jan 23 2017 VFR conditions to prevail throughout the 18Z TAF pd, as high pressure at the sfc moves ovhd. /issued 248 AM CST Mon Jan 23 2017/ Upper-level ridge to build across the region today allowing for northwest flow aloft and mostly sunny skies. Temperatures forecast to climb into the lower 60s areawide this afternoon.
An upper ridge will result in generally dry weather this week.
The highest snowfall rates should occur during the day on Tuesday, especially along the I90 corridor where models continue to indicate better trowal/deformation zone formation.
316 PM CST Mon Jan 23 2017 Upper level height falls and surface pressure falls will be most concentrated spreading out of eastern Colorado into western Kansas late Tuesday morning into the afternoon as an upper low deepens heading out of the Rockies. Subsidence will spread into the region near daybreak Tuesday just behind a Pacific cold front passing through late tonight. The upper level zonal flow will not break until late weekend as an upper level ridge builds in the western CONUS leading to more amplified flow.
Precipitation chances decrease Tuesday with much cooler temperatures and a widespread freeze Tuesday night.
Upper level analysis places broad trough over the western United States with compact low spinning down the west coast and strong wave pushing through the central Rockies. upper low slides along and near the South Dakota/Nebraska border. Secondary bout of light snow may spread across the area from north to south later in the day and overnight as a weaker upper low closes off over the southern Provinces and lifts northeast and modestly cooler air pushes in.
/Issued 306 AM EST Mon Jan 23 2017/ Low pressure aloft over the n GA area is forecast to exit the area to the ENE this morning.
Shallow boundary layer moisture trapped under inversion aloft will continue to be lifted as cooler air filters in during the day.
1119 AM CST Mon Jan 23 2017 Have updated the forecast to follow current trends in the temperatures and dew points and winds but did not make changes to the highs or lows. The Four State Area remained under the influence of high pressure on the surface and aloft. /issued 1106 AM CST Mon Jan 23 2017/ VFR conditions to prevail throughout the 18Z TAF pd, as high pressure at the sfc moves ovhd. /issued 248 AM CST Mon Jan 23 2017/ Upper-level ridge to build across the region today allowing for northwest flow aloft and mostly sunny skies. Temperatures forecast to climb into the lower 60s areawide this afternoon.
1258 PM EST Mon Jan 23 2017 A low pressure system passes overhead this afternoon and to the east tonight. Progressively colder mid and late week with passage of a cold front. Tuesday will see the shower activity wind down fairly quickly from west to east as the strong low pressure system moves away. High pressure will return Tuesday night with dry weather and near seasonable low temperatures.
Areas of dense freezing fog developed this morning near the Tri-Cities, Hermiston, Walla Walla, and the lower Yakima Valley. The Dense Fog Advisory for the Lower Columbia Basin was extended to the OR Blue Mountain Foothills. The lowest visibilities are occurring at KDLS.
338 PM CST Mon Jan 23 2017 Ridging over the south central part of the country will shift eastward tonight into Tuesday. Meanwhile, a rather cold trough along the West Coast will move across the Rockies and northern/central Plains. The 85h thermal ridge by mid afternoon Tuesday is expected to be mainly east of Interstate 35, but close enough that part of central Oklahoma may experience Red Flag conditions for a few hours. A cold front will move across the southern Plains late Tuesday afternoon and Tuesday night.
Otherwise look for increasing southeast winds tonight as high pressure moves off to the east low pressure deepens over eastern Colorado. The broader trough associated with the latter system is presently moving onto the West coast and a subsequent eastward translation through the Interior West will occur today. A change over to all snow will occur from northwest-to-southeast across the area Tuesday night as the cold air deepens with the passage of the surface cyclone to the east.
Analysis of morning satellite and radar reveals the surface cold front pushing eastward across western and northwestern Utah this morning while also deepening. The cold front is expected to push through the Salt Lake Valley and the Wasatch front early this afternoon, bringing quick accumulation to Valleys and impacting the evening commute. Looking ahead into Tuesday, as the surface front shifts eastward and the upper level low opens up, some wrap-around lingering snow is possible across the mountains of northern Utah.
231 PM CST Mon Jan 23 2017 As low pressure area pulls slowly off the Mid-Atlantic coast, clouds have cleared over our southwestern counties today. Winds should be light as a narrow high pressure ridge moves across the area.
Low pressure will deepen across the high plains of southeast Colorado keeping breezy southeast winds and mild temperatures in place across the forecast area tonight. Above normal temperatures will continue into Tuesday across much of the area before a cold front arrives ushering in more seasonable temperatures for late Jan.
915 AM PST Mon Jan 23 2017 Showers, isolated thunderstorms, and mountain snow will continue through Tuesday as a cold low pressure system moves overhead.
1232 PM EST Mon Jan 23 2017 Low pressure will bring rain to much of the area into tonight, with mixed precipitation at times along and north of I-80, and in the higher ridge elevations.
101 PM EST Mon Jan 23 2017 Aviation A trough of low pressure will bring rain showers to the area today into tonight. A brief respite from the rain will occur on Tuesday as high pressure works through the region.
420 PM EST Mon Jan 23 2017 Currently - Winds remain strong out of the west this afternoon as a low pressure gyre works its way westward off the mid Atlantic Coast. Isolated showers continue to race through the area in wake of this mornings cold front as deep cyclonic flow still reigns and there is no inhibtion for weak shower formation. Forecast - The deep trough over the eastern United States will swing northeastwards along the Atlantic coast over the next couple of days leaving our latitude with weak ridging at all levels.
though initially temperatures above freezing will help limit accumulations until the early evening hours. and central Lake and the lower eastern slopes of the Sawatch range should see 5-10 inches.
It is also expected that the higher elevations of the Sangre De Cristo mtns will see periods of snow and a few to several inches of accumulation. An upper low will be slowly tracking eastward acrs WY tonight and after midnight the central CO mtns and the La Garita mtns should see decreasing chances for snow. Then as the upper low continues moving east southeastward from WY and acrs NE on Tue, the sfc winds over the sern plains will become northerly in the mid morning to early afternoon hours, and will fairly strong. Temps Tue will be cooler Tue, especially over the sern plains. Temps on Wed will still be cool, with highs in the 20s in the high valleys and 30s acrs the plains.
Light rain showers and drizzle will move out of the area later tonight as low pressure moves further away from the area.
Ambient temperatures are warming into the lower 70s with an anticipated quick drop off into the 50s this evening under weak (return) flow and clear skies. As high pressure transitions to the east tomorrow. the onshore pressure gradient will tighten between this high and lowering lee Rocky pressure producing a fresh onshore afternoon breeze. Mainly sunny skies (just cirrus) and a slight westerly component to the lower-mid level wind field as western Texas troughing deepens promoting above guidance lower 80 F afternoon temperatures. The mid-level thermal ridge (mid teen 85H temperatures) also strengthens the near 20 degree above normal Tuesday daytime temperature argument and well as provide a decent downstream warm nose.
302 PM CST Mon Jan 23 2017 The upper level analysis places an upper level ridge over the southern Plains breaking down as Pac NW trough digs into the Great Basin region. A strong mid level jet is rounding the base of Pac NW trough bringing dry air into SW AZ per water vapor imagery.
105 PM EST Mon Jan 23 2017 A warm front will lift north across the area this morning followed by low pressure moving across from the west this afternoon and evening.
100 PM EST Mon Jan 23 2017 Starting to lose our lift on the western edge of the precipitation shield as large upper low heads toward the North Carolina coast. Upper air analysis reveals powerful upper level low (ULL) over the Southeastern U. By Tuesday, broad ridging will be in place across the Ohio Valley region. Many areas will see mostly sunny skies and highs in the lower 50s.
For Door County, weak trough to the east may be enough to stir up the dense fog later this evening. Also, included a chance of drizzle this evening as 500mb trough moves across the region.
Expect profiles to quickly wet bulb below freezing, making this a snow event across the entire area.
A ridge will start to build in from the west Tuesday night that will initiate a slow warming trend through the end of the week.
/issued 329 AM CST Mon Jan 23 2017/ (Today and Tonight) An unseasonably warm afternoon is on tap for today as temperatures rise into the low and mid 70s under mostly sunny skies. Normal lows for this date are in the lower 30s.
Late morning surface analysis depicts an occluded strong low pressure center (987 millibars) over the Appalachians. Weak high pressure was building into the Plains states in the wake of this system. a deep, negatively tilted trough is moving slowly through our region. The slow movement of the low pressure center will keep a tight local pressure gradient in place through tonight. Strong low pressure centered over the Appalachians this morning will move slowly northeastward to a position off the Mid-Atlantic coast tonight. Our local pressure gradient will rapidly loosen by Tuesday afternoon and evening as weak high pressure builds over the Florida peninsula.
Ditto for the Low Water Advisory as obs indicate a slow recovery. The large low pressure system that brought severe weather to much of the gulf coast over the last two days continues to push off to the east with high pressure building in across the northern gulf coast today.