Aikyam-Lab/Synoptic-Bench huggingface dataset:
340 AM CDT Fri Jul 26 2019 Today and tonight: Dry weather is expected through the period and although temperatures will be a little warmer today and tonight, slightly cooler than normal temperatures are expected again. Normal highs run in the lower 90s and much of the area will top out near 90F this afternoon. Our normal lows run in the lower 70s.
A weak upper level ridge will continue across the area through Saturday. A weak upper level wave moves through the ridge Friday night into Saturday.
An upper level high pressure system located over the southwest CONUS will keep temperatures in the upper 80s to lower 90s both Friday and Saturday. By Saturday afternoon the aforementioned upper level high will begin to move west. As a result, an associated cold front will push through the area Saturday afternoon.
105 AM EDT Fri Jul 26 2019 An area of high pressure will remain anchored over the central and southern Appalachians through the weekend.
222 AM EDT Fri Jul 26 2019 Updated at 310 PM EDT Thu Jul 25 2019 High pressure continues to cover the area with little change through tomorrow. Fortunately, humidity levels will remain manageable with dewpoints in the lower 60s, so heat index values will be roughly the same as the actual temp, and overnight lows can still drop into the mid/upper 60s, a bit below normal. The one real chance for precip will be Mon night/Tue as a progressive upper trof pushes through the Great Lakes. Pattern really starts to amplify later in the week with a hot ridge over the Intermountain West, resulting in NW flow from the Upper Midwest into the Ohio Valley.
352 AM CDT Fri Jul 26 2019 Last vestiges of out-of-season cold front dry air will likely get flushed out with today's gulf breeze advance inland later this morning into the afternoon hours. Dewpoints in the 60s across the MS coast into the northshore parishes and SW MS will rise to the lower 70s.
343 AM CDT Fri Jul 26 2019 High pressure ridge has slipped to the south and east this morning. Tonight, a dry forecast again, and low temperatures slightly warmer in the mid to upper 60s. The trough over the eastern half of the country is being absorbed more than kicked as a new low moves across over the US/Can border. The persistent high over the southwest will continue, building heat and occasionally opening up to the eastern half of the country, providing warmer temps through the end of the forecast.
Mostly clear skies and light winds have allowed temps into the lower and mid 60s this morning.
328 AM CDT Fri Jul 26 2019 Typical summer weather slated for all areas as strong, massive upr deck high pressure remains sprawled across the roughly the south- western third of the U. The center of the 590-595DM 500-MB high, which has been located over the AZ/NM border during the night, slowly retrogrades as a compact mid-upper cyclone, that is centered over southern Manitoba, scoots E across Ontario tonight, transitioning into a sharp trof as it continues to cross southern Ontario & the southern tip of Hudson Bay on Sat.
209 AM MDT Fri Jul 26 2019 High Pressure will be over the region today with clear skies and near normal temperatures. At the same time, upper ridge will build into Montana today. That ridge will warm temperatures into the 90s over most of the forecast area on Saturday. A cold front and upper trough approaches the area from the west Saturday afternoon.
A few clouds have begun to work their way south into northern parts of the state as they spin around an upper low across southern Canada. Quiet weather continues over the area as cold front has pushed to the east of the area. A cold front has made its way through all but the far southeast portion of the forecast area this afternoon. It will be cooler with more clouds over the far north central, closer to the upper low that tracks across southern Manitoba.
310 AM EDT Fri Jul 26 2019 High pressure just northwest of the area will move offshore by late today. Latest upper air analysis shows residual upper troughing over much of the ern CONUS, with ridging over the SW US. At the sfc, high pressure was centered over wrn PA/WV, with low pressure now well off the Carolina coast. With the trough nearby. Mainly clear skies expected tonight w/ lows in the low-mid 60s inland/around 70F along the immediate coast of SE VA/NE NC. The upper trough finally moves offshore on Saturday, allowing heights to rise and temperatures aloft to warm through the weekend.
High pressure in control through the period with VFR conditions expected at all sites.
305 AM EDT Fri Jul 26 2019 An area of high pressure will remain anchored over the central and southern Appalachians through the weekend.
A frontal system will bring storm chances back to the area early next work week before another high pressure system builds back into the area later in the week. This may function to keep our temperatures down a bit, and indeed the blend looked too warm for the day given the thickness progs and the fact that most areas stayed in the lower 80s yesterday. Dry weather will continue throughout the short term as high pressure remains in control.
1148 PM CDT Thu Jul 25 2019 A well-defined short wave trof was evident in water vapor imagery and VWP profiler data this evening stretching from the WI/MN border thru central IA into western MO. This trof was producing a good deal of mid-high clouds across the immediate region. The trof will continue to move eastward overnight and have further increased clouds into Friday morning from a previous update.
A disjointed western Atlantic high pressure system lying across extreme South Florida will lift slowly northward and spread over the entire Florida Peninsula for the next several days. Meanwhile, a subtle low level easterly trough will limp through our region on Saturday into Saturday evening, with high pressure governing our sensible weather thereafter. Plenty of strong insolation will allow manly island communities to reach the lower 90s with overnight lows in the lower 80s. A weak high pressure cell will hold across the Sunshine State, while no distinct low level undulations are on the horizon. High temperatures will average in the lower 90s with overnight lows in the lower 80s. Increasing influence from deep mean layer ridging will negate the chance for organized convection, with only isolated coverage expected along fleeting mesoscale boundaries.
258 AM PDT Fri Jul 26 2019 High pressure is moving westward and will be centered over southern California for the weekend. A shallow marine layer will keep coastal areas cooler with areas of night and morning low clouds and fog. For the middle part of the week, high pressure will move back towards the east.
616 AM CDT Fri Jul 26 2019 High pressure ridge has slipped to the south and east this morning. Tonight, a dry forecast again, and low temperatures slightly warmer in the mid to upper 60s. The trough over the eastern half of the country is being absorbed more than kicked as a new low moves across over the US/Can border. The persistent high over the southwest will continue, building heat and occasionally opening up to the eastern half of the country, providing warmer temps through the end of the forecast.
The latest surface map features high pressure dominating from New England down across the lower Mississippi Valley. Aloft, troughing is found in the East, with an upper level ridge centered across the Desert Southwest. Another seasonably cool night has been noted across eastern Kentucky, with current readings ranging from around 60 in the typically colder valley locations, to the mid 60s on ridgetops. This will allow for warmer temperatures across eastern Kentucky. Highs today will be in the low to mid 80s, with highs on Saturday more solidly in the mid 80s. Have stuck closer to the NAM guidance, which had a better handle of the highs from yesterday. Lows tonight will also modify somewhat, with most places in the low to mid 60s, with a few cooler sites still dipping just below the 60 degree mark.
06Z surface data has high pressure over the mid-Atlantic coast with a weak front in the Plains.
A weak area of low pressure is noted in observational and satellite data over central Nevada as of this writing.
616 AM CDT Fri Jul 26 2019 The Ozarks remains on the eastern periphery of a summertime high pressure system.
933 AM EDT Fri Jul 26 2019 High pressure will crest over the region today before shifting east into the maritimes on Saturday.
High pressure will meander across the southwest through the extended periods resulting in weak west northwesterly flow across the area with multiple weak disturbances potentially crossing the local area. In fact, the GFS brings a descent short wave trough and surface cool front across the local area late in the weekend.
524 AM MDT Fri Jul 26 2019 Monsoonal moisture wrapped around the west/northwest periphery of the high pressure system, currently centered over western New Mexico, has supported a few lingering showers across southeast Utah and southwest Colorado this morning. A trough off the PacNW coast will start to squish the ridge of high pressure to our south, forcing the center of the circulation to the south and west. A southwesterly track of the high will transition our CWA from southwest to westerly flow aloft, steering any storm that develops this afternoon on a northeasterly to easterly track. Upper level trough/shrtwv will be exiting the forecast area Saturday night with ridging rebuilding across the western Great Basin.
The 07Z water vapor imagery showed an upper ridge centered over the NM/AZ state line. Meanwhile an upper level closed low was noted north of ND and another upper low was over the gulf of Alaska. At the surface, a trough of low pressure extended from the northern plains through the southern high plains. Surface ridging was centered east of the MS river valley. Surface ridging along the TX gulf coast has held the deeper moisture well south of the forecast area. In general highs may be a degree or two warmer than yesterdays due to the warm air advection. So have highs forecast to be fairly similar or slightly warmer than yesterday. By Saturday morning, zonal midlevel flow will reside across the much of the CONUS as the western ridge de-amplifies.
Conditions will be transitioning however as ridging builds back to the north, with winds returning to an E/NE flow for the weekend. Winds will be turning overnight however as ridging builds back to the north with light N/NE flow expected. Ridging and easterly flow is then expected through the rest of the period with scattered showers and storms possible.
High temps this afternoon are still on track to reach the low/upper 80's with dew points still at comfortable levels, so just tweaked the hourly temp and dew point curves through early afternoon to capture recent observations. Chattanooga Airport, TN 89 67 88 69 / 10 0 10 10 Knoxville McGhee Tyson Airport, TN 86 66 87 67 / 10 0 10 10 Oak Ridge, TN 87 66 87 67 / 10 0 10 10 Tri Cities Airport, TN 84 59 86 61 / 10 10 10 10.
Upper level ridging will generally prevail across the intermountain west and high plains into early August.
738 AM EDT Fri Jul 26 2019 High pressure will remain over Pennsylvania today and Saturday.
An approaching cold front tonight will allow for mid/high clouds to overspread southeast Michigan. Even as upper ridging shifts gradually east today and heights remain suppressed through Saturday, expect warm weather to continue as the temperatures climb into the middle 80s today and mid/upper 80s on Saturday. With increased return south/southwest flow around the center of ridge, would anticipate a slight increase in humidity as well as dew points stair step up several degrees each of the next two days. This trough stalls over the region during the day Saturday with isolated to scattered showers/storms most likely re-developing by afternoon as modest instability develops with strong daytime heating.
/22/ Today and tonight: Dry weather is expected through the period and although temperatures will be a little warmer today and tonight, slightly cooler than normal temperatures are expected again. Normal highs run in the lower 90s and much of the area will top out near 90F this afternoon. Our normal lows run in the lower 70s.
/issued 408 AM CDT Fri Jul 26 2019/ (Today and Tonight) Continued quiet weather for the next 24 hours, with the upper level ridge to our west maintaining control of our weather.
943 AM EDT Fri Jul 26 2019 With high pressure situated east of the area, there will be an increase in heat and humidity this weekend.
543 AM EDT Fri Jul 26 2019 High pressure should maintain mainly dry and seasonable weather through the weekend. A weak upper trough axis is progged to be over the ridges of WV and MD this afternoon as convective thresholds are reached. Low level ridging should maintain mainly dry weather through the weekend. The exception Saturday is again in the WV/MD ridges where isolated afternoon showers or thunderstorms are possible with weak diurnal instability.
643 AM EDT Fri Jul 26 2019 With high pressure situated east of the area, there will be an increase in heat and humidity this weekend.
936 AM EDT Fri Jul 26 2019 High pressure should maintain mainly dry and seasonable weather through the weekend. See no reason to make any significant changes to the forecast, the possibility remains for isolated afternoon showers/storms in the ridges. A weak upper trough axis is progged to be over the ridges of WV and MD this afternoon as convective thresholds are reached. Low level ridging should maintain mainly dry weather through the weekend. The exception Saturday is again in the WV/MD ridges where isolated afternoon showers or thunderstorms are possible with weak diurnal instability.
407 AM MDT Fri Jul 26 2019 Monsoonal moisture wrapped around the west/northwest periphery of the high pressure system, currently centered over western New Mexico, has supported a few lingering showers across southeast Utah and southwest Colorado this morning. A trough off the PacNW coast will start to squish the ridge of high pressure to our south, forcing the center of the circulation to the south and west. A southwesterly track of the high will transition our CWA from southwest to westerly flow aloft, steering any storm that develops this afternoon on a northeasterly to easterly track. Upper level trough/shrtwv will be exiting the forecast area Saturday night with ridging rebuilding across the western Great Basin.
Hot temperatures this weekend with widespread triple digits at the lower elevations. Norcal under southerly flow aloft this morning between high pressure ridge centered over the four corners area and a weak trough off the Pacific Northwest coast.
Coastal areas slowly cool overnight into the low to mid 70s with inland areas of SE Georgia and Suwannee Valley dropping into the mid and upper 60s.
Mainly cloudy and cooler today with showers and isolated thunderstorms. Today through Saturday Extensive cloud cover remains shrouded over all of Nevada as the upper ridge remains centered near the AZ/NM border and continues to allow moisture to stream northward. The ridge will be moving westward tonight and by Saturday will be centered over western Nevada. The Four Corners high starts the period around Four Corners and then retreats east through the period until by mid week it is over the High Plains with a strong eastern Pacific trough over the West Coast. The models generally agree on a dry regime to start, with increasing moisture flow into the region as the high moves east, and finally ample moisture in the eastern part of the state.
Typical summer weather slated for all areas as strong, massive upr deck high pressure remains sprawled across the roughly the south- western third of the U. The center of the 590-595DM 500-MB high, which has been located over the AZ/NM border during the night, slowly retrogrades as a compact mid-upper cyclone, that is centered over southern Manitoba, scoots E across Ontario tonight, transitioning into a sharp trof as it continues to cross southern Ontario & the southern tip of Hudson Bay on Sat.
408 AM CDT Fri Jul 26 2019 (Today and Tonight) Continued quiet weather for the next 24 hours, with the upper level ridge to our west maintaining control of our weather.
620 AM CDT Fri Jul 26 2019 Early morning satellite imagery shows clouds continue to pivot around low pressure across southern Canada. Early morning satellite imagery shows an upper low spinning across southern Canada with clouds from the low moving drifting into northern North Dakota. The low will continue to move east today, and this should gradually take the clouds and rain with it. This would again lead to some potential fire weather concerns, but it appears the stronger winds and lower relative humidity values don't quite line up today (winds are weaker where the relative humidity values are the lowest).
Plenty of dry and and subsidence will drive the forecast through the short term, as 500mb high pressure centered over Arizona stretches across much of Texas. Surface dew points in the lower to mid 60s and clear skies has allowed ambient temperatures to drop into record levels.
710 AM EDT Fri Jul 26 2019 High pressure will crest over the region today before shifting east into the maritimes on Saturday.
724 AM EDT Fri Jul 26 2019 High pressure should maintain mainly dry and seasonable weather through the weekend. No changes needed to the forecast at this time, as it still appears that the ridges could see isolated showers/storms as a weak trough passes by. A weak upper trough axis is progged to be over the ridges of WV and MD this afternoon as convective thresholds are reached. Low level ridging should maintain mainly dry weather through the weekend. The exception Saturday is again in the WV/MD ridges where isolated afternoon showers or thunderstorms are possible with weak diurnal instability.
130 PM EDT Fri Jul 26 2019 With high pressure situated east of the area, there will be an increase in heat and humidity this weekend.
334 PM EDT Fri Jul 26 2019 Comfortable conditions are expected overnight thanks to high pressure remaining in place.
Surface analysis this afternoon places a ridge of high pressure over the Middle and Lower Mississippi Valleys. Mainly rain free weather is expected tonight into the weekend as high pressure will remain in place across the Lower Mississippi Valley.
1232 PM CDT Fri Jul 26 2019 The 07Z water vapor imagery showed an upper ridge centered over the NM/AZ state line. Meanwhile an upper level closed low was noted north of ND and another upper low was over the gulf of Alaska. At the surface, a trough of low pressure extended from the northern plains through the southern high plains. Surface ridging was centered east of the MS river valley. Surface ridging along the TX gulf coast has held the deeper moisture well south of the forecast area. In general highs may be a degree or two warmer than yesterdays due to the warm air advection. So have highs forecast to be fairly similar or slightly warmer than yesterday. By Saturday morning, zonal midlevel flow will reside across the much of the CONUS as the western ridge de-amplifies.
232 PM CDT Fri Jul 26 2019 The high pressure aloft that has been dominating our weather recently is now centered just SW of the CWA over the AZ/NM border. The new position of the high will allow a slight moisture increase to our NW and place the CWA in a more northwesterly flow.
Westerly component boundary layer winds today will combine with the low level dry air advection to warm temps up to the currently forecast upper 80s to mid 90s under plentiful sunshine.
This weekend will be influenced by two lobes of low pressure skirting across the US/southern Canadian border.
The high res guidance output showing afternoon showers has not materialized. A cold front and mid-level energy are poised to progress E-SE across Minnesota into Wisconsin tonight and Saturday, with showers possibly as far south as northern Illinois, especially on Saturday. Warm and humid conditions will highlight the rest of the weekend, as broad warm advection continues south of the cold front and under weak ridging aloft into western Illinois.
Expect afternoon highs in the low to mid 90s under mostly sunny skies.
The upper ridge remains to our west with fairly dry air still in place over the area. Look for lows in the 60's again with highs back in the low to mid 90's.
1138 AM CDT Fri Jul 26 2019 The Ozarks remains on the eastern periphery of a summertime high pressure system.
a ridge remains firmly ensconced over the southern Rockies with a long wave trough located over the Appalachians. high pressure was centered from New England southwestward into the lower Mississippi Valley.
229 PM EDT Fri Jul 26 2019 High pressure just northwest of the area will move offshore by late today. A weak upper trough is persisting over the mid atlantic while overall high pressure remains in place in the low levels. The upper trough is supporting some sct cu and a couple isolated showers across the northern neck and central va, but cloud cover was somewhat limited. The upper trough moves offshore on Saturday and skies mostly clear as heights rise and temperatures warm into the upper 80s Saturday.
Bigelbach PREVIOUS DISCUSSION: High Pressure will be over the region today with clear skies and near normal temperatures. At the same time, upper ridge will build into Montana today. That ridge will warm temperatures into the 90s over most of the forecast area on Saturday. A cold front and upper trough approaches the area from the west Saturday afternoon.
Temperatures are warming through the 80s and into the low 90s in some spots, on a west- northwest breeze. High pressure is building over the region. monsoonal flow) over Nevada tracks as it moves over/through the western CONUS upper level ridge. Wouldn't be at all surprised if some additional delays in convective onset over the western/southwestern zones shows up in the next few model runs, given the mid/upper level ridge this thing will have to work through to get out onto the plains states.
122 PM EDT Fri Jul 26 2019 High pressure will remain over Pennsylvania today and Saturday.
333 PM EDT Fri Jul 26 2019 Dry weather is expected to last through the weekend as high pressure settles along the Atlantic Coast. Warm temperatures will be observed in the southwest flow behind the high.
1131 AM MDT Fri Jul 26 2019 Monsoonal moisture wrapped around the west/northwest periphery of the high pressure system, currently centered over western New Mexico, has supported a few lingering showers across southeast Utah and southwest Colorado this morning. A trough off the PacNW coast will start to squish the ridge of high pressure to our south, forcing the center of the circulation to the south and west. A southwesterly track of the high will transition our CWA from southwest to westerly flow aloft, steering any storm that develops this afternoon on a northeasterly to easterly track. Upper level trough/shrtwv will be exiting the forecast area Saturday night with ridging rebuilding across the western Great Basin.
958 AM PDT Fri Jul 26 2019 High pressure is expected to build over Southern California this weekend for strong warming, mainly over the inland areas, along with less humidity.
surface temperatures were able to be slightly warmer today with mid afternoon temps in the low to upper 80s.
Surface analysis this morning places a 1024 mb ridge of high pressure over the Lower Mississippi Valley. Mostly clear skies and light winds have allowed temps into the lower and mid 60s this morning.
After another morning of record lows in the upper 50s and 60s temperatures are rebounding into the low 90s this afternoon.
148 PM PDT Fri Jul 26 2019 Strong high pressure continues to build westward toward Southern California, and should result in strong warming, especially inland areas.