Aikyam-Lab/Synoptic-Bench huggingface dataset:
The broader mid/upper level trough will slowly propagate eastward over the Mississippi River Valley through the Short Term, with an abundance of cirrus streaming overhead. In the lower levels, high pressure drifting eastward will allow moist southerly return flow to develop. The Ohio Valley will be under the influence of a weak and elongated upper trof for much of the Labor Day weekend.
321 AM CDT Fri Sep 2 2022 H5 analysis tonight has high pressure located over eastern Nevada. A ridge extended north of this feature into British Columbia. West of this ridge, low pressure was located roughly 800 miles off the coast of Washington state. At the surface, a trough of low pressure extended from eastern North Dakota, south southwest into western Nebraska. A cold front was present over western North Dakota and eastern Montana. This feature will force a back door cold front into northeastern portions of the forecast area tonight. This will lead to cooler highs in the lower 80s in the far northeastern forecast area.
(Today through Saturday night) Strong amplified high pressure will continue to dominate the western CONUS and keep northerly flow over the Panhandles today.
08z shows cold front near Roseau, Crookston to midway between Fargo and Valley City to west of Oakes ND.
306 AM EDT Fri Sep 2 2022 High pressure builds in through Friday, then begins to move east Saturday.
This wave is sandwiched between a strong subtropical ridge over the western CONUS and the Bermuda High extending into the Carolinas. As the aforementioned trough inches eastward tomorrow, we'll see increasing forcing for ascent across portions of the CWA. /issued 309 PM CDT Thu Sep 1 2022/ The first day of meteorological fall has been met with quite pleasant conditions, but the lower humidity and dry weather begins to wrap up today. A warm front in south Mississippi will begin lifting north tonight, increasing humidity, temperatures, and rain chances across the Mid-South starting tomorrow.
243 AM CDT Fri Sep 2 2022 A little warmer tonight throughout the area, with much of the area sitting around 70. High pressure to the east slowly continues to move out, as a weak wave pushes through the region. Dewpoints look to stay in the upper 60s, which should help to keep heat index values in the low 90s. This evening and tonight, a slow moving cold front approaches the area. Showers and storms possible Saturday afternoon and evening until cold front moves completely out of the area. Drier and cooler air will be in the area for a couple days until warm and humid air return to the area. Discussion: Main forecast challenge in the short term is the timing of the cold front on Saturday and chances for showers/storms with it. This brings the cold front into the area.
140 AM EDT Fri Sep 2 2022 High pressure builds in Friday and slides offshore on Saturday.
208 AM EDT Fri Sep 2 2022 High pressure will dominate the region through the end of the week. Will see high pressure move from the Mid-Atlantic to the northeast through Friday. Upper energy resides over the lower Missouri Valley and a weakness aloft over southern Georgia, so showers should be well south of us tomorrow afternoon. As high pressure departs further offshore on Friday night, the tranquil weather from the past couple days will come to an end. This increasing upslope flow will allow moisture convergence across the Blue Ridge.
221 AM EDT Fri Sep 2 2022 Dry weather through early Saturday as high pressure remains in control. Dry weather with above normal temperatures will continue as a high pressure, at the surface and aloft, remains over the region through the period. Today's high temperatures will reach the upper 80s across the lowlands, ranging to the lower 70s over the highest elevations.
358 AM EDT Fri Sep 2 2022 Seasonable temperatures and dry conditions will give way to increasing precipitation chances and above average temperature through the weekend ahead of the next low pressure system. High pressure remains in control today.
Overnight, the MCV/trough axis will meander eastward until it's centered over Tulsa.
409 AM EDT Fri Sep 2 2022 Mid level low pressure system is still situated across southeast GA this morning. The low will continue across SE GA today, but looks to weaken and fill by late Saturday. A longwave trough will try and push east of the Mississippi by the end of the period. Pops may be a bit more widespread tomorrow with the trough approaching from the west.
A strong area of high pressure expands across all of the Intermountain West beginning today and will remain stagnant over the next seven days, with hints at a pattern shift by September 9/10.
Storms are expected to form near the consolidating low pressure center/vort max as it tracks northeast across the region.
BW (This evening through Friday) In the upper levels, a ridge will be over the Southeast and Mid- Atlantic. A trough will move into the Mississippi Valley on Friday. At the surface, high pressure will be over the Eastern U. Showers and storms may be more scattered south of I-40 where the highest dew points are expected.
1242 AM CDT Fri Sep 2 2022 (This afternoon through Friday night) A breakdown in the upper ridge is over West Texas and Southeast New Mexico. This same general upper pattern will continue through Friday with an upper ridge building over the western part of the country. Temperatures will likely warm up some on Friday with highs mostly in the 80s with 70s across most of the higher terrain.
A strong high pressure system over the western United States will remain in place through the Labor Day weekend. A few areas of showers and thunderstorms developed this afternoon along the higher terrain of northern Arizona. An upper-level ridge dominates the west, bringing hot temperatures to much of the Southwest U. With minimal fluctuation in the positioning or strength of the high pressure system, temperatures will be 5 to 10 degrees above average for this time of year the next several days. An Excessive Heat Warning remains in effect for the lower elevations of the Grand Canyon through Labor Day. High pressure centered to our northwest over the Great Basin today will drift eastward slightly, becoming located over Utah by Friday afternoon.
However, due to southwesterly winds off the higher terrain, we have kept fog out of the forecast. Temperatures today are expected to rise back into the upper 80s and 90s due to the drier air mass and influence of the upper level ridge.
302 AM EDT Fri Sep 2 2022 A stalled front will linger across Georgia while high pressure builds off the New England coastline and extends across the area. Highs later today will be around 90 once again with Saturday's lows just a touch warmer more in the upper 60s to lower 70s range. Mid-level ridge will be situated off the Mid-Atlantic coast through the period.
Another sunny and warm day Friday with highs in the 80s through much of the interior and cooler along the coast and Strait of Juan de Fuca. High pressure will remain over the area for another day before shifting eastward late Friday. Light rain showers and a slight chance of thunderstorms are possible on Saturday as the ridge moves eastward.
134 AM MDT Fri Sep 2 2022 Strengthening high pressure aloft will bring warm/dry conditions through Saturday. As the ridge axis shifts slowly eastward we will see a surge of hotter air tomorrow. Couple areas of greatest concern: eastern zones 131-133 where SE-S winds will become breezy and gust from 20-30 mph, and over the Gallatin in thermal trof axis where approaching Pacific wave causes 700mb SW flow (and thus afternoon mixed winds) to increase.
449 AM EDT Fri Sep 2 2022 Dry weather through early Saturday as high pressure remains in control. Dry weather with above normal temperatures will continue as a high pressure, at the surface and aloft, remains over the region through the period. Today's high temperatures will reach the upper 80s across the lowlands, ranging to the lower 70s over the highest elevations.
Cannot rule out some patchy fog this morning with the low dewpoint depressions in place, but low level winds above the surface around 10-15 knots should keep fog formation minimal. Otherwise, today looks to be our last day in the 90s for a while as low level moisture begins increasing from the southeast thanks to an approaching upper level trough from the west. Coverage will be on the low side so only a slight to low chance pop is warranted. Although convection should wane overnight, models suggest showers and storms will redevelop by sunrise on Saturday morning as low level moisture continues to increase and the upper level trough inches closer. Thanks to the increase in precipitation coverage and associated cloud cover, highs on Saturday will be several degrees cooler than today.
148 AM EDT Fri Sep 2 2022 High pressure moving east will provide dry weather through Friday. A humid southerly flow is forecast to develop behind the high this Labor Day Weekend, bringing the threat for showers and thunderstorms. A slight chance of showers or a thunderstorm will present itself overnight as flow turns southerly, dewpoints linger in the mid 60s, and an upper trough to the west has energy translate through the southwest flow ahead of it in our area. The start of the period features a weak 500mb trough moving through the Ohio Valley, with the more robust trough base rounding through Ontario into Quebec.
Temperatures today will be in the mid to upper 80s, with the warmer temperatures across the west, where clearing is expected earlier in the afternoon. Clouds will push back into the area from the northwest this evening into tonight, as a cold front approaches. Widespread clouds and the showers/storms on Saturday, along with late day cool advection will keep temperatures a little cooler, with highs in the 70s.
A high amplitude ridge of high pressure will bring near record to record heat across the Northern Rockies today and Saturday.
(Today and tonight) The mid-level trough axis over the area will slowly push east and with it, and the primary chances for precipitation will be east of the trough axis across southeast and south central Oklahoma. Will keep some low POPs in northern and central Oklahoma tonight, but again the best chances of precipitation will be farther south closer to and ahead of the longwave trough axis.
1108 PM CDT Thu Sep 1 2022 - Scattered storms Friday, a few could be briefly strong - Great weather for the holiday weekend Quiet weather continues tonight and into Friday morning ahead of a weak cold front that will sweep through the area Friday afternoon. For tonight, southerly surface winds will keep temperatures quite a bit warmer than the past two nights with lows in the middle to upper 60s, and possibly not dropping out of the lower 70s across parts of the Twin Cities metro. The highest chances appear to be from southeastern MN into west central WI during the 7 pm to 11 pm timeframe.
957 AM EDT Fri Sep 2 2022 Dry weather through early Saturday as high pressure remains in control. Dry weather with above normal temperatures will continue today as a high pressure, at the surface and aloft, remains over the region through the period. Today's high temperatures will reach the upper 80s across the lowlands, ranging to the lower 70s over the highest elevations.
Cold front itself from near Bemidji to Wahpeton. 08z shows cold front near Roseau, Crookston to midway between Fargo and Valley City to west of Oakes ND.
500 AM MDT Fri Sep 2 2022 High pressure begins nudging eastward today as a system approaches the Pacific Northwest. Tomorrow the high pressure remains centered over Utah and that system makes landfall.
Saturday will see a trough briefly pass across NW NV. This will be a dry trough so no weather is expected but it will cause some gusty winds across Humboldt county.
High pressure will maintain quiet weather. Warm, moist advection will foster above average temperature and increasing cloud cover through Saturday as low pressure propagates nely from the plains. Thunderstorms will return Saturday with aforementioned low pressure and warm advection.
An upper ridge gives way to a weak weather disturbance tonight and Saturday morning.
(Today and tonight) A weak upper trough will remain over the area today, which will again result in scattered showers and a few thunderstorms across the area.
625 AM CDT Fri Sep 2 2022 H5 analysis tonight has high pressure located over eastern Nevada. A ridge extended north of this feature into British Columbia. West of this ridge, low pressure was located roughly 800 miles off the coast of Washington state. At the surface, a trough of low pressure extended from eastern North Dakota, south southwest into western Nebraska. A cold front was present over western North Dakota and eastern Montana. This feature will force a back door cold front into northeastern portions of the forecast area tonight. This will lead to cooler highs in the lower 80s in the far northeastern forecast area.
1000 AM EDT Fri Sep 2 2022 A stalled front will linger across Georgia while high pressure builds off the New England coastline and extends across the area. Highs later today will be around 90 once again with Saturday's lows just a touch warmer more in the upper 60s to lower 70s range. Mid-level ridge will be situated off the Mid-Atlantic coast through the period.
643 AM EDT Fri Sep 2 2022 A stalled front will linger across Georgia while high pressure builds off the New England coastline and extends across the area. Highs later today will be around 90 once again with Saturday's lows just a touch warmer more in the upper 60s to lower 70s range. Mid-level ridge will be situated off the Mid-Atlantic coast through the period.
Weak low pressure over southeast Georgia lifts slowly northeastward Today. Onshore flow will continue as high pressure remains northeast of the region this weekend and then to the north through mid-week.
652 AM CDT Fri Sep 2 2022 (Today and tonight) A weak upper trough will remain over the area today, which will again result in scattered showers and a few thunderstorms across the area.
Temperatures will be in the lower 90s. A warm front will surge northward late today and will increase the moisture in the atmosphere.
Water vapor satellite imagery shows a strong upper level ridge centered to the west with Colorado on the eastern periphery with NW flow aloft. With daytime heating, expect isolated shower/storm activity over the high country in the afternoon with a low chance for eastward spread onto the adjacent plains.
Light easterly flow will keep a fetch of drier air through the remainder of the overnight ours, making for pleasant conditions for the morning commute as lows bottom out in the low to mid 60s. The axis of the upper level trough will slowly move eastward today, shifting a weak ridge off the central Gulf Coast. Meanwhile, a warm front to our south will begin to lift northward and winds will veer to the south by the afternoon.
Upper-level ridging begins to shift east as a weak upper-level trough over the Plains slowly approaches the Mississippi River Valley. As the ridge aloft retreats from the region, rain chances will be on the rise throughout the near term. PoPs trend upward for Saturday (60-80%) with the greatest coverage expected across the southern 2/3rds of the area (generally south of the Highway 84 corridor).
530 AM CDT Fri Sep 2 2022 (Today through Saturday night) Strong amplified high pressure will continue to dominate the western CONUS and keep northerly flow over the Panhandles today.
633 AM EDT Fri Sep 2 2022 Dry weather through early Saturday as high pressure remains in control. Dry weather with above normal temperatures will continue today as a high pressure, at the surface and aloft, remains over the region through the period. Today's high temperatures will reach the upper 80s across the lowlands, ranging to the lower 70s over the highest elevations.
In the upper levels, ridging aloft was over the Southeast and Mid-Atlantic states this morning. However, a trough moves into the Mississippi Valley today.
552 AM EDT Fri Sep 2 2022 High pressure builds in through Friday, then begins to move east Saturday.
302 AM MDT Fri Sep 2 2022 High pressure begins nudging eastward today as a system approaches the Pacific Northwest. Tomorrow the high pressure remains centered over Utah and that system makes landfall.
1001 AM EDT Fri Sep 2 2022 Temps across the region are in the low 70s at this hour, with increased cloud cover to our west beginning to filter into central KY and southern IN. The broader mid/upper level trough will slowly propagate eastward over the Mississippi River Valley through the Short Term, with an abundance of cirrus streaming overhead. In the lower levels, high pressure drifting eastward will allow moist southerly return flow to develop. The Ohio Valley will be under the influence of a weak and elongated upper trof for much of the Labor Day weekend.
Skies are mostly clear across the Florida Keys, with temperatures in the lower 80s. This will reinforce exisiting high pressure over the western Atlantic, promoting a stronger pressure gradient and resulting east to southeast winds through Saturday.
1024 AM EDT Fri Sep 2 2022 High pressure will cross the region today then begin to move east Saturday.
Adjusted pops across east Arkansas a bit based on radar trends but showers are moving into a weak ridge that encompasses most of the Southeastern US. Temperatures will be in the lower 90s. A warm front will surge northward late today and will increase the moisture in the atmosphere.
Discussion: In the upper levels, a trough will remain nearly stationary over the Mississippi Valley tonight and tomorrow. A weak ridge will remain over the Mid-Atlantic and Southeast. At the surface, high pressure over the Northeast extends into the Mid-Atlantic.
116 PM CDT Fri Sep 2 2022 H5 analysis tonight has high pressure located over eastern Nevada. A ridge extended north of this feature into British Columbia. West of this ridge, low pressure was located roughly 800 miles off the coast of Washington state. At the surface, a trough of low pressure extended from eastern North Dakota, south southwest into western Nebraska. A cold front was present over western North Dakota and eastern Montana. This feature will force a back door cold front into northeastern portions of the forecast area tonight. This will lead to cooler highs in the lower 80s in the far northeastern forecast area.
Other than today's cooler temps, near average temps are expected for the next seven days. The upper low continues to slowly progress eastward this afternoon. This is in response to the upper low, along with instability and ample moisture. As the upper low moves east late this evening into Saturday, precip will follow suit.
1229 PM CDT Fri Sep 2 2022 (Today and tonight) A weak upper trough will remain over the area today, which will again result in scattered showers and a few thunderstorms across the area.
on the eastern periphery of an upper level ridge (presently centered over the Intermountain West). In the lower- levels, a cold front -- presently extending southwestward from Lake Superior to far northeast Nebraska -- will progress southeastward into WI/IA and northern MO late this aft/eve and overnight. The aforementioned ridge aloft (over the Intermountain West) will amplify and extend eastward over the Rockies on Sat. Guidance suggests that cooler temperatures (upper 80s) will prevail on Sat. Upper level pattern remains stagnate with high pressure over the west which will slowly traverse east throughout the week.
335 PM CDT Fri Sep 2 2022 Today has been our day of transition from a relatively dry and warm period to a wetter and slightly cooler several days. However, they are moving into a weak ridge so they have tended to weaken as they approach. Over the past few hours, temperatures over portions of west Tennessee near the Tennessee River and northeast Mississippi that are under more influence from the ridge have climbed into the upper 80s to low 90s. Tomorrow a weak longwave trough will approach the Mississippi River the the Ridge over the Southeast will shift closer to the East coast.
1014 AM CDT Fri Sep 2 2022 Summary: A few showers and thunderstorms, some possible severe, will be possible today with a cold front.
The attending cold front continues to drop south/southeast, with current surface analysis showing the front draped northeast to southwest across MN. Otherwise high temperatures will be a bit cooler (70s) behind the front on Saturday.
308 PM EDT Fri Sep 2 2022 High pressure slides across New England today and Saturday bringing fair weather and a warming trend into the Holiday weekend.
Meanwhile, aloft, a weak trough axis (appended to a more significant trough to the north) extended from eastern IA to eastern TX, and was creeping eastward. However, a persistent inflow of warm, moist air couple with the approaching trough may lead to more development overnight. With the continued eastward crawl of the trough, deep moisture in a long southwesterly fetch will promote precip on Saturday and Saturday night as well, with a diurnal peak again expected in the afternoon and evening.
(This afternoon through Saturday night) An upper ridge is over the western half of the country with West Texas and Southeast New Mexico on the western edge of an upper trough. High temperatures today will mostly be in the 70s and 80s but will likely be warmer than yesterday across the Permian Basin and Southeast New Mexico. High temperatures Saturday will be similar to today or a degree or two warmer.
1222 PM CDT Fri Sep 2 2022 (Today through Saturday night) Strong amplified high pressure will continue to dominate the western CONUS and keep northerly flow over the Panhandles today.
Welcome temperature relief is then anticipated behind the cold front over the weekend.
1225 PM EDT Fri Sep 2 2022 High pressure will cross the region today then begin to move east Saturday.
A weak flow pattern aloft is in place across our forecast area early this afternoon as we remain situated between a mid to upper level trough that extends along and just west of the Mississippi River Valley and also to the west of a weak mid level low/upper level trough that is located in the vicinity of southern GA/SC.
This could occur as capping erodes diurnally and a weak mid level wave approaches the cold front late this afternoon through early evening. Otherwise the only noteworthy impact through early this evening is high fire danger behind the departing weak cold front.
The upper ridge axis will shift to the east today opening up a more southwest flow aloft.
Temps across the region are in the low 70s at this hour, with increased cloud cover to our west beginning to filter into central KY and southern IN. The broader mid/upper level trough will slowly propagate eastward over the Mississippi River Valley through the Short Term, with an abundance of cirrus streaming overhead. In the lower levels, high pressure drifting eastward will allow moist southerly return flow to develop. The Ohio Valley will be under the influence of a weak and elongated upper trof for much of the Labor Day weekend.
1138 AM MDT Fri Sep 2 2022 High pressure begins nudging eastward today as a system approaches the Pacific Northwest. Tomorrow the high pressure remains centered over Utah and that system makes landfall.
Upper trough axis continues to move slowly east this afternoon across eastern OK. (Tomorrow through Friday) General trend over the next several days will be for warm and humid conditions with more or less daily, mainly diurnally drive showers and thunderstorms with the presence of weak upper trough over the south central U.
242 PM CDT Fri Sep 2 2022 This Evening through Tomorrow: Early afternoon satellite imagery shows a low pressure system along the MO/AR border lofting moisture northward from the Gulf Coast toward the Midwest. Activity will most likely be focused on the nose of returning Gulf moisture around the Highway 84 corridor and then wherever the passing upper-level trough can spur development farther north.