Aikyam-Lab/Synoptic-Bench huggingface dataset:
/issued 153 PM CDT MON JUL 18 2016/ A 5h anticyclone is centered INVOF SW KS with a mid level theta-e minimum across much of the CWFA, including the w. The upper ridge will remain to the n Wed. A minor shrtwv trof in the mid level ely flow is progged to track w across the PB Tue evening and may result in a few -SHRA. Said anticyclone will develop wwd starting Thur and will mostly result in high temps increasing a few degrees, probably back into the triple digits across most of the area.
1257 AM EDT TUE JUL 19 2016 A cold front will push south of the area overnight.
Showers have remained small and fairly isolated today with a suppressive 500mb ridge and high heights in place.
1012 PM EDT MON JUL 18 2016 A cold front will move south through the Great Lakes today, and south of the Ohio River on Tuesday. High pressure will then build into the region for the mid part of the week, bringing drier weather and near seasonable temperatures. Slow-moving, ill-defined cold front still remains over northern Indiana and Ohio late this evening, best discerned via IR and WV imagery. High pressure and drier air will settle in behind the front.
739 PM EDT MON JUL 18 2016 A cold front will pass through the area overnight.
758 PM EDT MON JUL 18 2016 A cold front will push offshore overnight.
Upper high centered over the southern plains and a frontal boundary is located over the midwest. A very weak low level trough appears to be in place over our southwestern areas and this is helping to produce the convection that is occurring across that portion of the cwa.
854 PM EDT Mon Jul 18 2016 A cold front has moved into northern New York and will continue moving eastward tonight.
924 PM EDT Mon Jul 18 2016 A cold front will slowly pass through the area Tuesday through Tuesday night.
952 PM EDT MON JUL 18 2016 A cold front will push offshore overnight.
Meanwhile, ridging is in place over the Rockies into the Plains. At the surface, weak lee troughing is in place with a weak front extending across northern MO into southern Nebraska. The main theme for the next few days will be for the upper ridge to continue to build and expand over the Plains through Fri.
The lower conditions will clear back to the coastal waters by Tuesday afternoon.
Chattanooga Airport, TN 74 95 73 95 / 30 40 30 10 Knoxville McGhee Tyson Airport, TN 72 91 71 93 / 20 40 30 10 Oak Ridge, TN 72 92 71 93 / 20 40 20 10 Tri Cities Airport, TN 68 88 65 90 / 30 40 30 10.
1047 PM EDT MON JUL 18 2016 A cold front crosses the Tri-State tonight, followed by high pressure building in from the west through Tuesday night.
807 PM EDT MON JUL 18 2016 A strong cold front will cross the area tonight. High pressure will follow with a drier and cooler air mass Tuesday.
A warming trend is then forecast for the second half of the week and into the weekend as high pressure builds over the region. An upper level low centered off the Pacific Northwest coast has all but mixed out the marine layer along the central coast this evening. The upper level low is forecast to meander off the Pacific Northwest coast through much of the week maintaining patchy night and morning low clouds and fog along the coast as well as below average afternoon highs.
Upper level trough remains stationary off the Pacific Northwest Coast this evening.
High pressure currently over Lake of the Woods coupled with an amplifying upper ridge over western ND will bring a continuation of dry weather in the short term period.
1019 PM EDT MON JUL 18 2016 High pressure over the Northern Plains will gradually build across the Great Lakes region through Tuesday.
Model mass fields are not that classic from a pattern recognition standpoint of another MCS like this morning, although models do show moisture, residual instability, and the exit region of an upper- level jet over the lower Ohio Valley. Afternoon highs will reach the upper 80s over the Bluegrass area to the lower 90s west of Interstate 65. A sprawling ridge of high pressure aloft will continue to be centered over the nation's midsection, with the flow aloft becoming a little more northerly over the Ohio Valley.
816 PM EDT MON JUL 18 2016 A cold front will pass through the area overnight.
757 PM EDT MON JUL 18 2016 A cold front will move south through the Great Lakes today, and south of the Ohio River on Tuesday. High pressure will then build into the region for the mid part of the week, bringing drier weather and near seasonable temperatures. As the cold front pushes into the area this evening PWATs will start to quickly fall from around 1.
Meanwhile, the Key West radar is detecting widely scattered showers and isolated thunderstorms racing westward near 30 mph across the Lower and Middle Keys and the adjacent nearshore and surrounding offshore waters. Surface wise, a formidable Western Atlantic ridge is draped into the Southeast United States resulting in mostly east winds ranging from 17 to 22 knots on our entire marine district. Despite a deep tropospheric Western Atlantic ridge along the gulf coast and the extreme Southeast United States, a fresh to strong easterly flow blowing across our very warm waters will provide good moisture flux to generate scattered showers and isolated thunderstorms. A small craft advisory is now in effect for all keys coastal waters with the highest winds and seas on the outer Florida Straits.
933 PM EDT MON JUL 18 2016 A strong cold front will cross the area tonight. High pressure will follow with a drier and cooler air mass Tuesday.
1018 PM EDT MON JUL 18 2016 A cold front will pass through the area overnight.
1213 AM EDT TUE JUL 19 2016 A weak cold front across the area will push off to the southeast tonight.
837 PM PDT MON JUL 18 2016 High pressure aloft will strengthen over the central and southern plains, then expand westward late in the week, bringing much warmer weather and above average temperatures across southern California.
Tweaked the hourly values again to account for any cooler temperatures following rain.
/issued 246 PM CDT MON JUL 18 2016/ The forecast area will remain on the southwest flank of an upper ridge that is centered from SE Kansas and eastern Oklahoma to the Ozark Plateau. Given trends of the last couple of weeks will trend toward the warmer end MOS. Dome of high pressure continues to dominate our weather pattern as we march toward record heat for July.
953 PM EDT MON JUL 18 2016 High pressure ridging into the forecast area from the Atlantic today will diminish Tuesday ahead of a weakening cold front.
With the mean ridge position to the north of the local waters we will maintain an east to southeast wind flow near 10 knots with seas 2 to 4 feet.
752 PM EDT MON JUL 18 2016 Isolated to scattered showers and a few thunderstorms will continue to develop over the Atlantic waters tonight, as a low level trough continue to approach South Florida from the Bahama Islands. Continued unsettled weather through this week into this High pressure over the western Atlantic waters will slowly weaken while remaining nearly stationary tonight through rest of this week. The high is also allowing for low level troughs to move west northwest from the Atlantic waters through South Florida and into the Gulf Of Mexico. The next low level trough just east of the Bahamas will continue to move west northwest and move through South Florida late tonight into Tuesday bringing in another surge of moisture to South Florida.
VFR conditions will prevail as high pressure aloft dominates.
Broad low pressure persists off the Pacific Northwest coast this evening, and is expected to linger for much of the week. The low is expected to weaken some the next couple of days, while high pressure aloft pushes northwest into Oregon from the Great Basin. This should result in drier and warmer weather, but onshore flow will keep temperatures from getting much above normal. Meanwhile, an upper level low will remain centered offshore through Tuesday.
Hot and breezy conditions expected to continue into Thu as southwest flow aloft persists ahead of an upper trof off the Pac NW coast. The upper trof sweeps inland Thu night and turns the upper flow more westerly. A second disturbance is expected to eject inland from the low off the NW coast Tuesday producing another round of strong gusty winds across the region. Winds will once again be breezy Wed-Fri with some potential for additional Red Flag conditions, particularly Thu-Fri with the passage of an upper-level trough and subsequent passage of an attending dry cold front.
An upper level ridge of high pressure will dominate the weather across the srn high plains with VFR conditions expected at all terminal sites through late Tuesday evening. /Issued 641 PM CDT MON JUL 18 2016/ For the 00Z TAFS, an upper level ridge of high pressure will dominate the weather across the srn high plains with VFR conditions expected at all terminal sites through late Tuesday afternoon. /Issued 339 PM CDT MON JUL 18 2016/ Little change to going forecast - high pressure ridge to continue across the region into the weekend. Some hope for convection this evening across the western Oklahoma Panhandle and extreme northwest Texas Panhandle with a weak trough as triggering mechanism.
641 PM CDT MON JUL 18 2016 For the 00Z TAFS, an upper level ridge of high pressure will dominate the weather across the srn high plains with VFR conditions expected at all terminal sites through late Tuesday afternoon. /Issued 339 PM CDT MON JUL 18 2016/ Little change to going forecast - high pressure ridge to continue across the region into the weekend. Some hope for convection this evening across the western Oklahoma Panhandle and extreme northwest Texas Panhandle with a weak trough as triggering mechanism.
An upper low will produce scattered showers through Tuesday night, with isolated thunderstorms over the Cascades in the afternoon and evening hours.
707 PM EDT MON JUL 18 2016 High pressure ridging into the forecast area from the Atlantic today will diminish Tuesday ahead of a weakening cold front.
1241 AM EDT TUE JUL 19 2016 A cold front will move to the southeast by Tuesday morning. High pressure should bring dry and increasingly hot weather through much of the rest of the week. The cold front continues to slowly drop southward across the forecast area.
805 PM EDT MON JUL 18 2016 A cold front crosses the Tri-State tonight, followed by high pressure building in from the west through Tuesday night.
/issued 243 PM EDT MON JUL 18 2016/ Models are pretty similar with the overall pattern of the H5 ridge building over the central part of the national keep the CWA in a weak northwest flow. Max temps are expected to be a little warmer Tuesday however dewpoints will be low enough to keep heat index values from reaching advisory criteria. 17 Little change in the overall pattern is expected by mid week as a broad sub-tropical ridge of high pressure sits over the central and southern Plains. Georgia and the Southeast region will continue to be on the eastern periphery of the High - in an area where any one given upper level disturbance can enhance diurnally-driven (afternoon and evening) showers and thunderstorms.
1125 PM EDT MON JUL 18 2016 A cold front will push offshore overnight.
Still anticipate a chance for some storms northwest overnight as the Low Level Jet forms along the MT/ND border area. Most favorable location for development will be north of an area of low pressure, from northeast MT/northwest ND to north into southern SK initially.
958 PM EDT MON JUL 18 2016 A weak cold front across the area will push off to the southeast tonight.
An upper level ridge over the central Great Plains will allow for a nice fetch of subtropical moisture to remain over the cwa through Tuesday. the upper ridge will remain parked over KS/OK with a weaker south/southwesterly flow aloft over CO.
Looks like the trough axis associated with a weak upper disturbance to the southwest may be supporting the line of convection moving across the southern.
1152 PM CDT MON JUL 18 2016 Upper level ridge axis was over the western Dakotas. Upper ridge will move over the area Tue. High pressure currently over Lake of the Woods coupled with an amplifying upper ridge over western ND will bring a continuation of dry weather in the short term period.
710 PM EDT MON JUL 18 2016 A cold front will exit the area early this evening. Low temperatures tonight will drop into the lower and middle 60s.
For the Metroplex sites, a bit more moisture in the lower levels is forecast to work in from the east Tuesday afternoon, which may enable isolated convection to intrude a bit closer to the Metroplex airspace. Otherwise temperatures are in the low to mid 90s with light southeast winds. the upper ridge will be firmly in control over the central and southern Plains although there will be deep east- southeast flow across North Texas.
634 PM CDT MON JUL 18 2016 High pressure will continue over the area through the period.
910 PM EDT MON JUL 18 2016 A cold front will move to the southeast by Tuesday morning. High pressure should bring dry and increasingly hot weather through much of the rest of the week. The cold front continues southward across the area this evening. At the moment, the only showers really are in southern Indiana County, where upslope flow into the northern end of the Chestnut Ridge may be helping to kick through the cap.
1218 AM EDT TUE JUL 19 2016 A strong cold front will cross the area tonight. High pressure will follow with a drier and cooler air mass Tuesday.
701 PM EDT MON JUL 18 2016 A secondary cold front now working inland from Lake Huron across the thumb and Port Huron areas is expected to continue moving inland during the evening, likely accelerating a little bit as sunset approaches. While a brief uptick in wind speeds around 10 knots is possible along this front, winds will then quickly diminish as high pressure builds across the region.
718 PM EDT MON JUL 18 2016 High pressure over the Northern Plains will gradually build across the Great Lakes region through Tuesday.
1054 PM EDT Mon Jul 18 2016 Cooler and drier air will continue to work into the region behind a cold front exiting Vermont to the east during the early morning hours on Tuesday.
Cold front oozes south late tonight and Tuesday morning. Upper level high pressure dominates for the remainder of work week with hotter afternoon temperatures. Models bring a weak cold front tonight into Tuesday.
1149 PM EDT MON JUL 18 2016 Expansive high pressure across the region will maintain light winds through the TAF period.
357 PM MST Thu Mar 9 2017 A cold front will move southward this evening into southeast CO, bringing northerly winds that may be gusty for a little while. The HRRR and GFS are not showing the low levels being as moist as the NAM. It will be cooler on Fri acrs the southeast plains. Even with the front moving thru the area, temps are expected to be above average on Sat, with highs in the upper 50s through the lower 60s acrs the high valleys and southeast plains.
822 PM EST Thu Mar 9 2017 Weak high pressure will build over the area overnight.
These cigs should eventually lower/become IFR overnight with patchy FG possible, ahead of a cold front that will approach the Red River of extreme NE TX/SE OK into adjacent SW AR after 09Z. The cold front should begin to backdoor SW into lower E TX into Cntrl LA between 15-18Z, with IFR/low MVFR cigs quickly lifting/becoming VFR from NE to SW over SW AR/MLU prior to 18Z, and across SHV by mid-afternoon. This evening clouds will continue to increase from the west ahead of an approaching cold front, which will bring scattered showers and isolated thunderstorms to southeast Oklahoma, northern Louisiana and southwest Arkansas overnight. Low level moisture along with a strong cold front will cause scattered showers across the region. Daytime temperatures will range from the lower 70s south of I-20, and the mid 60s north of I-20.
Otherwise, a cold front will drop south through the area this evening/overnight with gusty northeast winds. Low level moisture may pool enough ahead of the cold front near the Red River for a period of MFVR ceilings at SPS Friday morning. /ISSUED 310 PM CST Thu Mar 9 2017/ A cold front will move southwest across Oklahoma and north Texas tonight, shifting winds to the northeast, and bringing somewhat cooler weather into the region.
648 PM CST Thu Mar 9 2017 This Evening: The only reason for the update was to remove thunderstorms from Southeast Labette County as the SE-moving cold front has pushed all convection SE of this area. Northeast winds will increase to above 15 mph overnight as a cold front continues to slide southward. Much cooler temperatures are in store for tomorrow with highs only reaching into the upper 40s to lower 50s.
Fairly benign marine conditions overnight into Friday as weak high pressure remains over the central Florida waters.
Additionally, planned flows for the Boise River continue minor flooding around the Glenwood Bridge. Friday morning showers increasing in coverage across southwest Idaho as a Pacific cold front crosses the area.
316 PM MST Thu Mar 9 2017 A small upper low off the southern Baja coast continues to spread clouds over the area tonight.
Northeast winds will increase to above 15 mph overnight as a cold front continues to slide southward. Much cooler temperatures are in store for tomorrow with highs only reaching into the upper 40s to lower 50s.
Ridge of high pressure over the area will shift south tonight as a cold front north of the area moves south. Some of the low clouds/fog may spread further east to just west of the I-95 corridor during the early morning hours. The low clouds/fog is expected to lift by around 14Z. Winds are still expected to veer to the southwest and increase later tonight into Friday morning as a ridge over the area moves south and a cold front begins to move south. Winds expected to increase to cautionary levels offshore Friday morning with a brief lull in the afternoon before a sharp north to northeast surge of winds expected behind cold front brings advisory conditions offshore Friday night.
The high density, small drop size is indicative of warm rain process, which can be associated with the subtropical moisture plume. For tonight, a cold front will move through the area from the NW.
A surface cold front is then dropping southward across Illinois and northern Indiana. Cooler weather settling in behind the front will keep temperatures much cooler generally in the 40s.
As high pressure at the surface moves to the east, a weak cold front will drop into the area tomorrow and wash out along the central Gulf Coast.
Early afternoon water vapor satellite imagery is showing a weak cold front continuing to drift south through the central Florida Peninsula, and is forecast to dissipate over southern Florida tonight. Weak high pressure will fill in behind the front on Friday, with another day of warm and mostly dry conditions expected.
Mid evening water vapor imagery continues to depict a weak area of low pressure over Sonora, Mexico and some of its associated high cloud cover sneaking into far southeast Arizona. Elsewhere across the area, clear skies prevailed as high pressure remained in control of the weather.
A battleground between high and low pressure will set up tonight across North Dakota.
Lows tonight will be in the lower to middle 20s. Otherwise, lowered temps slightly overnight and Friday in wake of frontal wave/sharpening eastern CONUS trof drives deeper/colder airmass southward. Continued quite cool temperatures through the weekend with low level thermal trof finally releasing after Sat night.
Skies will remain mostly clear through the day tomorrow as strong high pressure builds into the area. Dry air and subsidence will result in a quiet period and expansive high pressure over south central Canada expands into the upper Midwest. Despite the expected sunshine on Friday, daytime temperatures are only expected to climb back into the low to mid 20s, which will be 15 to 20 degrees below the normal for March 10th. Fortunately, the low level winds will remain offshore during this period.
532 PM CST Thu Mar 9 2017 For the remainder of the afternoon, a cold front will continue to push south across the CWA through the evening and overnight. Afternoon high temperatures will be affected both by the position of the warm front in addition to rain-cooled areas impacted by ongoing storms. As a result, afternoon temperatures will range from the lower 50s across northern Missouri to the mid 60s to lower 70s for the southern counties. A Canadian airmass will fill in behind the aforementioned cold front tonight, bringing Thursday night lows back to the sub- freezing mark for most areas.
Much colder air at the surface will be slower to retreat north as the much warmer air moves in aloft. Thus, there will be some potential for some light freezing rain after warm frontal passage aloft, especially toward Helena and nearby low-lying areas during the early morning hours. Any such freezing rain is expected to be brief and patchy and is not expected to be impactful since it will immediately follow a period of snow. The warm front aloft looks to stall over our northeastern counties for most of Friday into Friday night.
831 PM EST Thu Mar 9 2017 A nearly zonal flow remains across the region this evening with an area of high pressure at the surface building in the wake of a dissipated cold front.
The decreasing clouds come with the cost of increasing winds and colder temperatures though, as strong high pressure builds in from the northwest. North to northwest winds will increase late this evening and into tonight as strong high pressure builds into the region. Skies will remain mostly clear through the day tomorrow as strong high pressure builds into the area. Dry air and subsidence will result in a quiet period and expansive high pressure over south central Canada expands into the upper Midwest. Despite the expected sunshine on Friday, daytime temperatures are only expected to climb back into the low to mid 20s, which will be 15 to 20 degrees below the normal for March 10th. Fortunately, the low level winds will remain offshore during this period.
the H5 trough west of Mexico will push slowly eastward keeping some mid-level perturbations moving across the region. or a degree or two cooler.
Chattanooga Airport, TN 53 63 34 53 / 80 10 0 30 Knoxville McGhee Tyson Airport, TN 49 56 28 43 / 80 20 0 30 Oak Ridge, TN 49 58 28 44 / 80 20 0 40 Tri Cities Airport, TN 43 53 23 37 / 80 40 0 50 TN.
However, with these trends continuing tonight and into Friday we should see cooler air filtering farther into the valleys tomorrow. Not much change Sat (again a possibility of some low stratus and dense fog at the beaches), but then Sun the ridge pumps up again and we get another little offshore burst.
High pressure will remain in control of NorCal weather through the weekend, bringing dry and mild weather. Models continue to advertise a shower or two across northern Shasta county mountains through Friday over the ridge, but won't amount to much.
A strong arctic cold front will sweep through the area tomorrow afternoon and early evening along with a period of heavier snow showers and possible squalls.
543 PM EST Thu Mar 9 2017 Weak high pressure will build over the area tonight.
Guidance continuing to suggest a cold front dropping south into the area Friday associated with broad troffing aloft advancing across the east CONUS. Boundary advancing through will serve as a focus for some increased shower and thunderstorm activity during the day while allowing for somewhat cooler temperatures going into the weekend.
The combination of instability and moisture in the low levels allowed for clouds and some convective activity to develop today.
545 PM CST Thu Mar 9 2017 For the 00Z TAFs, a surface cold front will move across the terminal sites this evening and tonight with north to northeast winds behind this boundary.
The exception will be south-to-southeast of Tucson where some thin cirriform clouds associated with a weak upper trough will occur.
600 PM CST Thu Mar 9 2017 A cold front will sag south into northern Nebraska this evening, then continue south and stall late tonight across northern Colorado and Kansas.
A ridge of high pressure is expected to dominate the flow over the Southwest United States for the bulk of the next 7 days.