Aikyam-Lab/Synoptic-Bench huggingface dataset:
1226 PM CDT Mon Sep 2 2024 Mid morning surface analysis had a dry cold front across northern Mississippi. Along and ahead of the cold front a layer of stratus has formed and was as far south as our Highway 82 corridor but Local radars remain quiet in our CWA. The wind ahead of the cold front was already northerly minimizing low level convergence but with daytime heating of the moist airmass ahead of the cold front, a few late afternoon showers will be possible generally along and south of our Highway 84 corridor. High temperatures are expected to be in the mid-90 and overnight lows in the lower 70s with some areas reaching the upper 60s.
334 PM EDT Mon Sep 2 2024 Drier and cooler conditions will continue through midweek before warmer air builds back in late week.
Dry and mild weather will prevail through Tuesday as high pressure covers the region.
233 PM MDT Mon Sep 2 2024 - 2 to 3 degrees warmer tomorrow. - Passing front brings cooler temperatures and better chances of precipitation for the middle of the week. - Warming trend into the weekend with daily chances of precipitation over and near the higher terrain. Temps tomorrow will be a few degrees warmer than today, and expect temps to reach into he low 90s across the plains with U80s over the divides.
1233 PM CDT Mon Sep 2 2024 -Slightly cooler weather expected today.
211 PM EDT Mon Sep 2 2024 High pressure will then build over Pennsylvania today, bringing a sustained stretch of cooler, dry and less humid conditions for the first week of September and the start of meteorological fall.
327 PM EDT Mon Sep 2 2024 * Cooler temperatures, compared to the recent heat wave, expected this week. A reinforcing shot of still cooler conditions possible this weekend.
(This evening through Tuesday night) Currently, the FA along with much of the central US is under mid to upper level ridging. However, a cutoff low under this ridge is creating widespread cloud cover over central to western Texas to include parts of the TX Panhandle. With that said highs today should stay in the lower 80s this afternoon across the combined Panhandles. Tomorrow temperatures could be a couple to three degrees warmer with more insolation as the clouds clear out. However, the FA is finding itself with a very dry layer in the low to mid levels as seen in this mornings 12Z upper air sounding.
Cooler than average temperatures and dry conditions continue through Tuesday then temperatures warm slightly above average for the end of the week. Near ideal radiational cooling will occur tonight as skies trend clearer with light winds under building high pressure. Dry conditions will prevail as high pressure builds over the region.
WV imagery indicates a weak ridging aloft shifting east across the Western High Plains. Near the surface, an area of high pressure is drifting southeast through the Upper Midwest. Tranquil conditions will persist today into tonight as the SREF indicates ridging aloft moving slowly east across the Western High Plains into the Central Plains. Some high clouds from time to time, but other than that, high pressure dominating the area with virtually no chance for any ceilings or visibility restrictions.
332 PM EDT Mon Sep 2 2024 Drier and cooler conditions will continue through midweek before warmer air builds back in late week.
The combination of a broad mid to upper ridge across the Mountains and High Plains and boundary layer high pressure across the more adjacent Central Plains will be the prevailing features driving the sensible weather through mid week. The high clouds in the region, associated with the storm system over west TX, will generally fade Today and become clear/sunny going forward.
High pressure over the NE US will build down the eastern seaboard and push offshore midweek. A deep mid level trough is forecast to dive southward across the Great Lakes and NE states late week and this weekend. The mid level ridge over the SW Atlc will largely hold, preventing the front from pushing cleanly thru the area. The Atlc ridge axis north of the local waters will break down and push further into the western Atlc into tonight. A stronger high pressure area to the north will build across the area Tue-Wed and produce a more East to Southeast flow but moisture will remain high.
1226 PM CDT Mon Sep 2 2024 (Today and tonight) An upper level trough located over eastern Chihuahua is helping spread showers from the Trans Pecos to northwest Texas early this morning. This trough is supported by the right entrance region of a 50-60 kt 250 mb jet streak progged to exit the Texas Panhandle and central High Plains later today.
The associated trough is expected to move through the Northern Rockies on Tuesday, leading to an increase in atmospheric moisture (precipitable water) to above-normal levels. The primary focus for storm activity on Tuesday afternoon is along the Highway 93 corridor and eastward through the Divide.
An elongated ridge of high pressure continues to builds over Arizona today. A couple isolated showers and possibly a thunderstorms may develop over northwestern Arizona being on the fringe of the high, but coverage and intensity will be very limited.
139 PM EDT Mon Sep 2 2024 Scattered showers and thunderstorms this evening, mainly across northern SC as a trough moves into the area. A cold front brings wedgelike conditions into the region by Tuesday, lasting through much of the week. The primary axis of the stout mid-level trough is crossing over the area early this afternoon, with falling heights and winds aloft shifting out of the west-northwest. The very strong associated high pressure over the Great Lakes is driving substantial drier air across much of the northern tier of the US. Key Message(s): - Much cooler temperatures expected.
600 PM CDT Mon Sep 2 2024 (Tonight) After some post-frontal early morning stratus, clouds have given way to clear skies across the Tennessee Valley as an upper trough shifts east off the Atlantic Coast and broad upper ridging centers over the Central Plains. At the sfc, high pressure will shift southeast from the Great Lakes and into the northern Appalachians, keeping drier northeasterly winds in place. With occasionally breezy northeast winds forecast overnight and relatively warm H85 temps, overnight lows will be on the warmer side ranging from the low to mid 60s.
(Rest of tonight) Northwest flow aloft will continue to weaken across the TN Valley overnight, as a longwave trough across eastern Canada lifts out to the northeast, allowing the Atlantic subtropical ridge to expand westward into the northeastern Gulf of Mexico. At the surface, a high (currently over the Lower Great Lakes) will build east- southeastward into the northern Mid-Atlantic states, with a ridge predicted to expand south-southwestward in the lee of the southern Appalachians.
Highest PWATs have unsurprisingly been near the coast where a coastal trough remains in place. Considering the continued high PWATs along with the lingering presence of the aforementioned trough and the PVA being introduced by a mid/upper low to our west, we expect pretty similar conditions tomorrow.
JKL Hot and dry conditions are already in place for much of the area, with many locations in the upper 80s to low 90s, and locations along the foothills have humidity values in the low teens, all as of 1 PM. Tonight will also see a brief backdoor cold front that will help alleviate some of the hot temperatures, but that said, Tuesday still looks to see temperatures ~10 degrees above normal. As the trough swings through, it lingers enough Tuesday night to allow showers to persist overnight into Wendesday morning before fully exiting Montana.
658 PM EDT Mon Sep 2 2024 High pressure builds into the region thru the middle of the week, gradually moving offshore mid to late week.
634 PM CDT Mon Sep 2 2024 (Tonight through Tuesday night) Surface analysis this afternoon shows a stationary front stretched across Central Texas and a trough from near Rocksprings to Laredo to the coast rotating around a low over the Gulf.
838 PM EDT Mon Sep 2 2024 - Tranquil weather continues - Another warm up, another cool down - Tranquil weather continues High pressure is in control of our weather, leading to cool mornings and mild afternoons. Tuesday will feature slightly warmer daytime temperatures as 850 mb temps rise a few degrees to around 10C-11C. - Another warm up, another cool down September tends to be a roller coaster type of month as the Great Lakes transitions from the hot summer temperatures to much cooler fall temperatures. High pressure that's over us right now will be centered over the Mid Atlantic coast by mid week.
948 PM EDT Mon Sep 2 2024 Drier and cooler conditions will continue through midweek before warmer air builds back in late week.
The combination of a broad mid to upper ridge across the Mountains and High Plains and boundary layer high pressure across the more adjacent Central Plains will be the prevailing features driving the sensible weather through mid week. The high clouds in the region, associated with the storm system over west TX, will generally fade today and become clear/sunny going forward.
Have seen already two isolated thunderstorms develop south of the Lower Keys. As the Atlantic Ridge builds back in from the east we should also see easterly winds uptick overnight which should also aid with boundary collisions and help to stir up some rain/thunderstorms.
847 PM CDT Mon Sep 2 2024 Surface analysis this evening places a cold front near the northern Gulf Coast. Meanwhile, a 1027 mb ridge of high pressure is building into portions of the Lower Mississippi and Tennessee Valleys. CJC Dry and mild weather will prevail through Tuesday as high pressure covers the region.
1049 PM EDT Mon Sep 2 2024 High pressure will build over Pennsylvania, bringing a sustained stretch of cooler, dry and less humid conditions for the first week of September and the start of meteorological fall.
537 PM EDT Mon Sep 2 2024 High pressure will build over Pennsylvania today, bringing a sustained stretch of cooler, dry and less humid conditions for the first week of September and the start of meteorological fall.
719 PM CDT Mon Sep 2 2024 Tonight and Tuesday: Mid afternoon surface analysis had a dry cold front nearly along Interstate 20. Per satellite imagery/RAP analysis, this cold front was losing its upper level support as the upper level trough has shifted well east of Mississippi. Models still suggest the cold front will have enough momentum to drop just south of Interstate 20 before stalling later tonight. This cold front will bring drier air, including surface dew points in the lower 60s and lowering PWATs below an inch and a half, into the northern portions of our CWA. Along and south of the cold front this afternoon into early evening there will be a very low chance of a few showers. Despite the dry cold front and rain chances Tuesday afternoon, warmer than normal temperatures will continue tonight and Tuesday.
529 PM MDT Mon Sep 2 2024 - 2 to 3 degrees warmer tomorrow. - Passing front brings cooler temperatures and better chances of precipitation for the middle of the week. - Warming trend into the weekend with daily chances of precipitation over and near the higher terrain. Temps tomorrow will be a few degrees warmer than today, and expect temps to reach into he low 90s across the plains with U80s over the divides.
707 PM EDT Mon Sep 2 2024 Drier and cooler conditions will continue through midweek before warmer air builds back in late week.
630 PM CDT Mon Sep 2 2024 (This evening through Tuesday night) Currently, the FA along with much of the central US is under mid to upper level ridging. However, a cutoff low under this ridge is creating widespread cloud cover over central to western Texas to include parts of the TX Panhandle. With that said highs today should stay in the lower 80s this afternoon across the combined Panhandles. Tomorrow temperatures could be a couple to three degrees warmer with more insolation as the clouds clear out. However, the FA is finding itself with a very dry layer in the low to mid levels as seen in this mornings 12Z upper air sounding.
Models are depicting an inverted trough developing over the region overnight and with an increase in low-level moisture, the morning showers being shown in the last several runs of the CAMs seem to be possible. Other than that, tomorrow should be another great day of cooler temperatures and clouds, even if you don't see rain. Highs Tuesday remain manageable, in the low to upper 80s.
631 PM EDT Mon Sep 2 2024 * Cooler temperatures, compared to the recent heat wave, expected this week. A reinforcing shot of still cooler conditions possible this weekend.
627 PM CDT Mon Sep 2 2024 Dry and mild weather will prevail through Tuesday as high pressure covers the region.
high pressure was pushing east northeast this evening with light east to northeasterly winds. cooler low temps are forecast tonight.
- Slightly cooler temperatures forecast for the end of the work week. Temperatures are forecast to remain around the low to mid 80's with winds from the south at 15 mph, gusting to around 25 mph. Temperatures are forecast to be a few degrees warmer than today with the higher surface pressure and slightly cooler air mass shifting east.
239 AM MDT Tue Sep 3 2024 An upper level trough will put us in southwest flow today bringing PWAT values around 120% of normal. Wednesdays severe potential looks to be limited as the upper level trough starts to pull out of the region and an upper level trough starts to drop in from the north. Temperatures will be 5-10 degrees cooler today with temperatures in the high 80s to mid 90s. Wednesday will be much cooler with temperatures in the low 80s.
322 AM EDT Tue Sep 3 2024 High pressure will build across Pennsylvania Tuesday. The high will pass off of the New England coast late in the week with lingering ridging extending westward into Pennsylvania.
1247 AM CDT Tue Sep 3 2024 Tonight and Tuesday: Mid afternoon surface analysis had a dry cold front nearly along Interstate 20. Per satellite imagery/RAP analysis, this cold front was losing its upper level support as the upper level trough has shifted well east of Mississippi. Models still suggest the cold front will have enough momentum to drop just south of Interstate 20 before stalling later tonight. This cold front will bring drier air, including surface dew points in the lower 60s and lowering PWATs below an inch and a half, into the northern portions of our CWA. Along and south of the cold front this afternoon into early evening there will be a very low chance of a few showers. Despite the dry cold front and rain chances Tuesday afternoon, warmer than normal temperatures will continue tonight and Tuesday.
Expecting upper level pattern to show some slight ridging characteristics resulting in dry conditions as low level atmospheric ridging influences shift northeastward out of northern Ohio River Valley Region this morning and into New England area by shortly after sunrise on Wednesday. As low level ridging influences continue to shift northeastward to off northern CONUS Atlantic Coastline and more pronounced ridging influences develop aloft, dry conditions will continue across our area.
1256 AM EDT Tue Sep 3 2024 High pressure will build across Pennsylvania Tuesday. The high will pass off of the New England coast late in the week with lingering ridging extending westward into Pennsylvania.
303 AM CDT Tue Sep 3 2024 - Dry conditions continue through at least Wednesday night as high pressure remains in place.
240 AM EDT Tue Sep 3 2024 A large area of high pressure centered over the western Great Lakes will move east today, reaching New England by Wednesday, and providing dry and cooler weather for much of the Mid Atlantic region. The high will remained wedged down the east slopes of the Appalachians as a cold front approaches the area at the end of the week.
Overnight into early Tuesday morning, the main trough will push closer to the CWA that will push more widely scattered rain showers and thunderstorms in from Idaho before sunrise. With the increased divergence aloft with the approaching trough, the bulk of the stronger instability looks to be with the FROPA where points east has CAPE values up to 500 J/kg along with stronger shear and steeper lapse rates. The aforementioned upper level disturbance will then push east of into the high plains and upper Great Plains Wednesday as upper level ridging builds back into the northern Rockies from the west and southwest.
(Today through Wednesday) A broad area of low pressure of the Texas Coast will continue to support an active pattern of daily showers and thunderstorms through the period. Given the high moisture values, heavy rainfall is possible with any of these showers and thunderstorms. Given the limited duration of the higher heat indices, a Heat Advisory or Special Weather Statement wonât likely be needed.
355 AM EDT Tue Sep 3 2024 High pressure builds into the region through the middle of the week, gradually moving offshore mid to late week.
1053 PM CDT Mon Sep 2 2024 (Rest of tonight) Northwest flow aloft will continue to weaken across the TN Valley overnight, as a longwave trough across eastern Canada lifts out to the northeast, allowing the Atlantic subtropical ridge to expand westward into the northeastern Gulf of Mexico. At the surface, a high (currently over the Lower Great Lakes) will build east- southeastward into the northern Mid-Atlantic states, with a ridge predicted to expand south-southwestward in the lee of the southern Appalachians.
1245 AM CDT Tue Sep 3 2024 (Tonight through Tuesday night) Surface analysis this afternoon shows a stationary front stretched across Central Texas and a trough from near Rocksprings to Laredo to the coast rotating around a low over the Gulf.
(Today and tonight) Late tonight lows have dropped lower than previous days, now in the mid 50s northeast, to the 60s and lower 70s extreme south as we remain in a northerly flow pattern with drier air pushing in behind a cold front that sinked south to the central part of the gulf coast states by early this morning. Upper heights are rising again today enough to produce afternoon highs in the lower to mid 80s in the north and central to some mid to possibly even upper 80s southern valley, which will be near seasonal normals, and more comfortable with the lower dewpoints.
The combination of a broad mid to upper ridge across the Mountains and High Plains and boundary layer high pressure across the more adjacent Central Plains will be the prevailing features driving the sensible weather through mid week. The high clouds in the region, associated with the storm system over west TX, will generally fade today and become clear/sunny going forward. Bias corrected gridded forecast would point toward slightly warmer days Tuesday and Wednesday, so highs pushing to around 90 degrees are not out of the question this week west and south of Dodge City.
An upper ridge has also nudged into the region from the east. A cold front was also noted near the TX/OK border across the Deep South and into the Carolinas. The upper low moving into the west coast will move across the Rockies by Wednesday shoving the upper ridge over much of the central sections of the country east. With the lack of the ridge aloft and an increase in moisture, scattered to numerous showers and storms can be expected by afternoon.
By the weekend, the high may re-center near the Four Corners, but it is not a slam dunk.
121 AM EDT Tue Sep 3 2024 High pressure will build across Pennsylvania Tuesday. The high will pass off of the New England coast late in the week with lingering ridging extending westward into Pennsylvania.
* Cooler temperatures, compared to the recent heat wave, expected this week. A reinforcing shot of still cooler conditions possible this weekend.
Ridging continues to build into the area today and into Tuesday. A well advertised trough will propagate through the region Wednesday. SPC has highlighted the entire forecast area in a marginal (level 1/5) risk, but based on the timing of the front, the highest risk for severe weather would seem to reside in west central MN. Dry air in the lower levels may also limit the weakest showers to virga. Behind the front, cooler air filters in to the end the week.
- Temperatures remain warmer than normal throughout the week, even while trending slightly cooler. Despite this, scattered showers and storms have developed early this afternoon over the high terrain. Precipitation chances will continue until the evening with the highest potential along and north of I-70. Moisture increases across the northwestern portion of the forecast area tomorrow afternoon ahead of an approaching cold front. positioned on the leading edge of the incoming trough. Afternoon instability increases with the colder air moving in aloft but we will also be sweeping in a much drier airmass behind the trough axis.
The Atlc ridge axis north of the local waters will break down and push further into the western Atlc into tonight. A stronger high pressure area to the north will build across the area Tue-Wed and produce a more East to Southeast flow but moisture will remain high.
Cooler than average temperatures and dry conditions continue through Tuesday then temperatures warm slightly above average for the end of the week. Previous discussion below: Near ideal radiational cooling will occur tonight as skies trend clearer with light winds under building high pressure. Dry conditions will prevail as high pressure builds over the region.
1230 AM CDT Tue Sep 3 2024 -High temperatures will warm into the lower 80s on Tuesday, with mid to upper 80s on Wednesday.
An U/L ridge will build over the Florida peninsula today and will hold over the area through the end of the week. A strong U/L low will move over the Great Lakes this weekend with a trough axis extending to the Lower Mississippi Valley. Heights over the Florida peninsula will gradually lower over the weekend as the trough edges east, however the ridge axis will hold over south Florida. At the surface, high pressure remains east of the Florida peninsula with weak south to southeast flow across the peninsula.
1215 AM CDT Tue Sep 3 2024 (This evening through Tuesday night) Currently, the FA along with much of the central US is under mid to upper level ridging. However, a cutoff low under this ridge is creating widespread cloud cover over central to western Texas to include parts of the TX Panhandle. With that said highs today should stay in the lower 80s this afternoon across the combined Panhandles. Tomorrow temperatures could be a couple to three degrees warmer with more insolation as the clouds clear out. However, the FA is finding itself with a very dry layer in the low to mid levels as seen in this mornings 12Z upper air sounding.
1114 PM EDT Mon Sep 2 2024 High pressure will build across Pennsylvania Tuesday. The high will pass off of the New England coast late in the week with lingering ridging extending westward into Pennsylvania.
(This afternoon through Tuesday) At a glance: - Warm today, cooler tomorrow - Afternoon thunderstorm chances taper off A cold front riding the leading edge of a lifting mid-level trough will be trekking slowly southeastward across north and central Georgia over the course of the next 36 hours. This will serve to reinforce the cooler and drier conditions ushered in by the passage of the aforementioned cold front. Cloudier skies are likely tomorrow, especially for areas within the cool dome (Atlanta to Athens and all points east), with highs as much as 8-10 degrees cooler -- in the mid-70s to mid-80s.
The moisture associated with the upper level low that provided very beneficial rainfall to portions of west Texas continues to slowly slide off to the ENE early this morning. Weak flow aloft is likely through Wednesday before a trough moves down the Rockies towards the Panhandles late Wednesday night.
256 AM EDT Tue Sep 3 2024 A strong high pressure system settles in over the region through the middle of the week. There will be low humidity, with dew points in the low 50s during the afternoon and light southeast winds around 5 mph or less.