Aikyam-Lab/Synoptic-Bench huggingface dataset:
Any remaining sprinkles will fade this afternoon into this evening as high pressure begins to build into the area skies make a steady transition from mostly cloudy to mainly clear. Temperatures begin to rebound on Sunday as the upper low pressure shifts to the east With H85 temperatures approaching 10C by late Sunday, expect highs back into the 70s most locations by afternoon.
Currently - A surface through lower level Atlantic ridge stretches westward across the Florida Peninsula. Of note is a sprawling mid latitude trough spanning North America and focused over the east has resulted in a narrow mid and upper level ridge arcing east across the Gulf of Mexico, then northeastward off the Atlantic Coast. The combination of an Atlantic ridge reaching towards the Florida Peninsula and lower pressure in the western Gulf of Mexico and northwestern Caribbean Sea is resulting in gentle east to southeasterly breezes.
507 PM CDT Sat Sep 7 2024 (This afternoon through Sunday night) Quite the mundane short term, as WV imagery shows the upper ridge centered just southwest of the Four Corners. Sunday, looks like a carbon copy of today, only maybe a degree warmer and w/no convection.
747 PM EDT Sat Sep 7 2024 Lake enhanced moisture will keep clouds and stray showers north of the region today in the wake of a cold front. Loss of deeper mixing will also result in lowering wind speeds/gusts, though remnant surface gradient flow may keep speeds elevated along the higher terrain into NW PA. Otherwise, clearing skies and a cooler air mass will promote low temperatures around 10-15 degrees below the daily average.
624 PM CDT Sat Sep 7 2024 (Rest of today through Sunday) Spectacular weather for September as a strong cold front has nearly completed its passage through Middle Tennessee. Observation sites across the area are reporting temperatures in the low 70s with a cool northerly breeze with gusts up to 20 mph. Temperatures will steadily increase through the week as the southeast falls back under the influence of an upper-level ridge.
A substantial low pressure trough with the potential for gusty winds and light precipitation will arrive midweek. Slightly cooler temperatures have been reported towards the coast with Blue Lake at 87 and Kneeland around 82.
1046 PM EDT Sat Sep 7 2024 On the heels of a cold frontal passage, high pressure will build in through Sunday night.
830 PM EDT Sat Sep 7 2024 Canadian high pressure will bring dry but cool conditions the region through the weekend. Still expect overnight lows mostly in the upper 30s to lower 40s, but a few cooler readings will be possible in outlying areas across the north and east. A large area of high pressure settling slowly across the CONUS is forecast to dictate weather conditions through the period. Dry weather is expected in the subsident circulation around the high.
High pressure will slowly drift south tonight across Illinois. Low temperatures will generally be in the lower to middle 40s.
613 PM CDT Sat Sep 7 2024 (This evening through Sunday night) For tonight through Sunday night, the overall pattern featuring an upper level ridge of high pressure initially situated around the four corners region and an upper level trof over the eastern states will slowly progress eastward through Sunday night. There is an outside chance for an isolated shower or thunderstorm or two to drift into the very far northwest sections this evening and Sunday evening from the higher elevations of southeast Colorado and northeast New Mexico.
Cooler and drier air will continue to move into the region in wake of a recent cool front. Quiet conditions will continue, with overnight lows ranging from the mid to upper 50s north of I-20, to the lower 60s across the remainder of the area. Cold air advection to persist through the remainder of the weekend with lows tonight in the lower 50s to near 60 degrees. High temperatures on Sunday to average near 80 degrees with continued cool conditions on Sunday night with lows in the lower to middle 50s.
Through the late night hours and toward daybreak, showers may gain strength across SE GA as a the cold front to the north sinks southward into the region.
Dry and stable conditions will exist tonight as high pressure settles across the midwest. Any remaining sprinkles will fade this afternoon into this evening as high pressure begins to build into the area skies make a steady transition from mostly cloudy to mainly clear. Temperatures begin to rebound on Sunday as the upper low pressure shifts to the east With H85 temperatures approaching 10C by late Sunday, expect highs back into the 70s most locations by afternoon.
641 PM CDT Sat Sep 7 2024 Tonight and tomorrow: With the cold front having slipped south of the area, high pressure will bring cooler and drier conditions overnight. In fact, one might argue that tonight will be downright pleasant as lows drop into the lower to middle 50s north, around 60 along the I-20 corridor, and low to mid 60s to the south. It wouldn't be a surprise to see some areas touch the upper 40s for the first time since Spring near the highway 82 corridor. Tomorrow, we stay seasonably cool with continental high pressure remaining in control and highs in the low to mid 80s F.
649 PM MDT Sat Sep 7 2024 - Warmer Sunday with isolated afternoon and evening showers and thunderstorms in the mountains and over the far northeast plains. - Low chances (10-30%) for showers and thunderstorms most days and mainly over the higher terrain.
These favorable conditions will continue through the overnight which will lead to anomalously cold lows around the low to mid 40s. Synopsis: Surface analysis early this afternoon shows strong high pressure in place over MN/WI/IA. Aloft, strong ridging was in place over the Rockies, while a deep upper low was found over Ontario. Models suggest the the upper ridge in place over the Rockies will slowly continue to shift eastward reaching the western plains by Sunday night. All of this will impact the surface with the arrival of the strong high pressure system over the upper midwest settling across IL/IN.
916 PM CDT Sat Sep 7 2024 Cool high pressure is building across the region with clear skies and light NE winds. SJM A cool and dry ridge of high pressure will bring fall-like temperatures to the Mid-South this weekend.
Our cooler airmass as moved in as expected with highs today reaching 78 at BNA while CSV only reached 71. (Rest of today through Sunday) Spectacular weather for September as a strong cold front has nearly completed its passage through Middle Tennessee. Observation sites across the area are reporting temperatures in the low 70s with a cool northerly breeze with gusts up to 20 mph. Temperatures will steadily increase through the week as the southeast falls back under the influence of an upper-level ridge.
600 PM CDT Sat Sep 7 2024 - Cool, fall-like weather continues this weekend before turning warmer by the middle of the week. Water vapor imagery early this afternoon shows a deep upper trough over the eastern Great Lakes Region with northwest flow over the Midwest. At the surface, high pressure centered over the Upper Mississippi Valley will continue to drop southeast, becoming positioned over central Illinois by the start of Sunday. Tonight's lows will be even cooler underneath clear skies and light winds with temperatures expected to dip down into the low to middle 40s.
611 PM MDT Sat Sep 7 2024 - Warmer Sunday with isolated afternoon and evening showers and thunderstorms in the mountains and over the far northeast plains. - Low chances (10-30%) for showers and thunderstorms most days and mainly over the higher terrain.
Winds are forecast to decrease to between 5-10 mph overnight, with perhaps some gusts up to 15-18 mph (especially over the higher terrain over northeast Alabama).
Winds will remain light and northerly keeping in line with the reinforcing cooler air behind the front that has moved south of the forecast area. /OAJ/ Tonight and tomorrow: With the cold front having slipped south of the area, high pressure will bring cooler and drier conditions overnight. In fact, one might argue that tonight will be downright pleasant as lows drop into the lower to middle 50s north, around 60 along the I-20 corridor, and low to mid 60s to the south. It wouldn't be a surprise to see some areas touch the upper 40s for the first time since Spring near the highway 82 corridor. Tomorrow, we stay seasonably cool with continental high pressure remaining in control and highs in the low to mid 80s F.
1000 PM EDT Sat Sep 7 2024 A cold front moving through southern New England late today into the evening will bring a period of showers to most areas, along with a few embedded thunderstorms. Clearing and cooler behind the front for late tonight and Sunday. Cold front moving through SE MA at 10 pm with narrow line of enhanced showers and brief 30+ mph NW gusts accompanying the front. A good deal of dry air filters in behind the front keeping skies clear even as the upper low lift out of NY/northern New England into Canada.
545 PM CDT Sat Sep 7 2024 (Tonight through Sunday night) A cold front has moved to the upper TX coast and stretches back across the Coastal Plains to the Rio Grande near Eagle Pass. High pressure will continue to dominate during the short term. Temperatures Sunday will also be cooler than today with highs mostly in the 80s with parts of the Rio Grande Plains reaching the lower 90s.
549 PM CDT Sat Sep 7 2024 (Tonight) Seasonably cool/tranquil wx conditions prevail across the mid TN Valley heading into the afternoon hrs this Sat, as a large dome of high pressure out of the northern Plains settles into the Midwest region. Drier air is also filtering into the area out of the NNE following the passage of a cold front early this morning. Mostly clear skies coupled with dew pts falling into the mid 40s will translate into an unseasonably cool early Sun, with lows dropping into the upper 40s across southern mid TN into the lower 50s over most of north AL.
828 PM EDT Sat Sep 7 2024 On the heels of a cold frontal passage, high pressure will build in through Sunday night.
517 PM EDT Sat Sep 7 2024 Lake enhanced moisture will keep clouds and stray showers north of the region today in the wake of a cold front. Loss of deeper mixing will also result in lowering wind speeds/gusts, though remnant surface gradient flow may keep speeds elevated along the higher terrain into NW PA. Otherwise, clearing skies and a cooler air mass will promote low temperatures around 10-15 degrees below the daily average.
738 PM CDT Sat Sep 7 2024 Surface analysis shows high pressure centered over the Quad Cities, with a ridge axis extending southwest from there across the forecast area. Cooler and drier conditions were also observed this afternoon with temps in the 70s to lower 80s.
There is a 20 to 65 percent probability of high temperatures at or above 105 degrees today across much of the lower elevations before a gradual cooling trend begins on Sunday. There is a 10 to 15 percent chance for isolated thunderstorms over the high elevations of the Sierra Nevada this afternoon and early evening. The upper ridge has shifted further southeast now stretching from southern California to the Four Corners region. Moderate to major Heat Risk continues across much of the lower elevations.
High pressure will build overhead Sunday, then remains nearly stationary over the region through much of the week. Previous discussion Surface cold front has cleared the forecast area. High pressure over the upper mid-west will build across the Ohio Valley and Mid- Atlantic tonight and Sunday. Key Messages: 1) Confidence is high for dry weather through the early part of the week with high pressure in control.
609 PM CDT Sat Sep 7 2024 - Much cooler temperatures and lower humidity this weekend.
914 PM EDT Sat Sep 7 2024 Lake enhanced moisture will keep clouds and stray showers north of the region today in the wake of a cold front.
/NEW/ /Tonight through Sunday Night/ Absolutely stunning weather will continue through the remainder of the weekend as a reinforcing shot of drier air spreads into the Southern Plains and high pressure remains in control through Sunday. Highs on Sunday will top out in the low to mid 80s with northeast winds around 10 mph. Tropical development is favored in the Gulf with the low pressure most likely to gradually track northward along or near the Texas Coast over the next several days.
745 PM EDT Sat Sep 7 2024 A cold front will push through the region tonight. High pressure will build into the region on Sunday, providing generally dry and seasonable weather through mid week.
955 PM EDT Sat Sep 7 2024 Canadian high pressure will bring dry but cool conditions the region through the weekend. Amplified mid level flow with a low centered over the eastern Great Lakes and southeast Canada and a ridge over the Rockies. Have continued previous forecast thinking - trending a little cooler than guidance in this dry airmass. Expect overnight lows mostly in the upper 30s to lower 40s, but a few cooler readings will be possible in outlying areas across the north and east - where lows in the mid 30s are forecast. A large area of high pressure settling slowly across the CONUS is forecast to dictate weather conditions through the period. Dry weather is expected in the subsident circulation around the high.
(Today) High pressure will continue to reign supreme across eastern Oklahoma and western Arkansas today with mostly sunny skies and below normal temperatures anticipated.
356 AM EDT Sun Sep 8 2024 Brisk and cooler than normal temperatures close the weekend with isolated showers over the Adirondacks today. Highs in the mid 60s to near 70 and cooler in higher terrain. Upper low just north of the U.
(Today through Monday night) Mid to upper level high pressure is present over the Four Corners Region with northwest flow aloft for the FA today and tomorrow. Influence from the high pressure will continue to bring near normal to slightly above normal daytime temperatures both today and tomorrow, in the upper 80s to lower 90s. Tomorrow, is more likely to see the higher end of these ranges with a slightly stronger gradient in place.
Through the late night hours and toward daybreak, showers may gain strength across SE GA as a the cold front to the north sinks southward into the region. High pressure will become centered to the north Sunday night.
Our cooler airmass as moved in as expected with highs today reaching 78 at BNA while CSV only reached 71. (Rest of today through Sunday) Spectacular weather for September as a strong cold front has nearly completed its passage through Middle Tennessee. Observation sites across the area are reporting temperatures in the low 70s with a cool northerly breeze with gusts up to 20 mph.
Highs this afternoon should warm another 1-2 degrees with most locations staying firmly in the upper 60s to the lower 70s. Temperatures will start to fall off pretty good after sunset, so look for evening temps to dip into the upper 50s by mid-evening and into the lower 50s by midnight. This should allow temps to drop into the lower-middle 40s for most spots. For Sunday, high pressure will remain in control of our weather. By Sunday evening, influence from the upper level trough over the eastern US, responsible for cooler than normal temperatures we've been experiencing, will be decreasing as ridging aloft begins to build in across the region. Look for fair skies to continue through mid week as modified Canadian high pressure settles over the region.
310 AM EDT Sun Sep 8 2024 Canadian high pressure will extend across the middle Atlantic, while gradually modifying, through most of the upcoming work week. The cold front has pushed through the Carolinas and in its wake high pressure over the MS valley will slowly edge eastward toward the southern Appalachians. As the trough axis to our west finally slides through overnight, we should see a more W to NW flow take over aloft, favoring a slow erosion of the cloud deck over our southern zones. West to northwest flow aloft will weaken in the day/night as ridging over the TN valley shifts eastward. High pressure will remain in place across the southern Appalachians.
1145 PM CDT Sat Sep 7 2024 (This afternoon through Sunday night) Quite the mundane short term, as WV imagery shows the upper ridge centered just southwest of the Four Corners. Sunday, looks like a carbon copy of today, only maybe a degree warmer and w/no convection.
By this afternoon, highs will top out in the low to mid 80s which is 5-10 degrees below normal for this time of the year. Temperatures across the region will be in the lower to mid 50s as radiational cooling is expected to be in full force. The Dallas/Fort Worth Metroplex is likely to be the warmer spot with upper 50s expected due to the Heat Island effect. /NEW/ /Monday Night Onward/ A warming trend will begin during the midweek period as a mid level ridge strengthens overhead.
Some of this high cloud cover will persist into the day today, but high temps should warm into the 70s, 5 to 10 degrees warmer than yesterday. Heading into the work week, broad mid/upper level ridging will expand across the northern plains through the Great Lakes with persistent low-level southerly flow leading to temps rebounding back above average into the upper 70s to mid 80s through early week.
1154 PM CDT Sat Sep 7 2024 (This evening through Sunday night) For tonight through Sunday night, the overall pattern featuring an upper level ridge of high pressure initially situated around the four corners region and an upper level trof over the eastern states will slowly progress eastward through Sunday night. There is an outside chance for an isolated shower or thunderstorm or two to drift into the very far northwest sections this evening and Sunday evening from the higher elevations of southeast Colorado and northeast New Mexico.
117 AM EDT Sun Sep 8 2024 A cold front will push through the region tonight. High pressure will build into the region on Sunday, providing generally dry and seasonable weather through mid week.
410 AM EDT Sun Sep 8 2024 (Today through Monday night) A large upper low over extreme SW Quebec will lift NE through Monday as the associated upper trough shifts E over the W Atlantic. At the surface, a cold front across the S portion of the County Warning Area (CWA) will continue to move S and become diffuse. High temperatures on Monday will be mostly in the lower to mid 80s with mid 70s in the NE mountains. Low temperatures Monday night will range from the lower 50s in the NE to the lower 60s in the extreme S.
with highs maybe a deg or two cooler with NRLY flow continuing.
(Today through Monday) South Florida remains under the influence of western Atlantic high pressure while a surface boundary meanders over northern Florida. The eastern United States remains under the general influence of a trough with an associated deep-layered low around the Great Lakes that will be moving northward into arctic Canada in the next couple of days.
248 AM EDT Sun Sep 8 2024 * Chilly start to the morning gives way to a slightly warmer day with highs expected to reach around 70. Chilly start to the morning will give way to a warmer albeit still below normal day as the upper trough begins to gradually peel away to the east. As the western edge of the aforementioned upper trough begins to vacate the central Great Lakes late tonight-early Monday, pool of vorticity is progged to cascade out of northern Ontario.
127 AM EDT Sun Sep 8 2024 A cold front moving through southern New England late today into the evening will bring a period of showers to most areas, along with a few embedded thunderstorms. Clearing and cooler behind the front for late tonight and Sunday. Cold front moving through SE MA at 10 pm with narrow line of enhanced showers and brief 30+ mph NW gusts accompanying the front. A good deal of dry air filters in behind the front keeping skies clear even as the upper low lift out of NY/northern New England into Canada.
308 AM CDT Sun Sep 8 2024 - Dry with much warmer temperatures this week. High pressure is centered over southeast Iowa and into parts of Illinois and Missouri early this morning. This area of high pressure will settle southeast and eventually reach from the east coast to Texas.
155 AM EDT Sun Sep 8 2024 Canadian high pressure will bring dry but cool conditions the region through the weekend. Amplified mid level flow with a low centered over the eastern Great Lakes and southeast Canada and a ridge over the Rockies. Have continued previous forecast thinking - trending a little cooler than guidance in this dry airmass. Expect overnight lows mostly in the upper 30s to lower 40s, but a few cooler readings will be possible in outlying areas across the north and east - where lows in the mid 30s are forecast. A large area of high pressure settling slowly across the CONUS is forecast to dictate weather conditions through the period. Dry weather is expected in the subsident circulation around the high.
Fairly similar conditions are expected today as yesterday, with high temperatures in the low to mid 80s. A developing area of low pressure over the Rockies and a potential developing tropical system in the Gulf will strengthen the pressure gradient over west central Texas.
A cold front currently sits in our far southeastern counties and will stall out around this location today. As the front washes out to our south, it will meander around as an inverted trough across the southeast.
North to northeast flow will continue throughout the short-term period of the forecast keeping the cooler temperatures and drier air in place. Highs today will warm into the lower 80s to near 90 degrees with the higher temperatures closer to the Rio Grande.
It's expected to be a pleasant day across the northern Middle Atlantic region as high pressure from the Midwest begins to ridge across the area. An upper H5 trough to the N/NW will remain in place as it weakens thru Monday. Readings will drop into the low/mid 40s for the southern Poconos, Lehigh Valley and north NJ. The only potential blip in the continued period of tranquil weather will come late Monday into Monday evening as a trailing mid and upper level trough crosses through the region.
335 AM EDT Sun Sep 8 2024 A large area of high pressure brings cooler and drier conditions through Monday. A chilly night as the ridge overhead brings light to calm winds and clear skies that promote strong radiational cooling. Almost everyone wakes up to temperatures in the 40s Monday morning, aside from Washington DC and Baltimore City where temps drop to the low 50s. Large high pressure remains atop the region, bringing continued sunny skies and dry conditions.
Discussion: Cold front is south of the region today with high pressure and dry air in control of our weather. Daily Record Low Minimum Temperatures Date Chattanooga Knoxville Tri-Cities Oak Ridge 09-08 52(2017) 46(1984) 44(2017) 49(2017) 09-09 49(1958) 46(1984) 43(1998) 47(1958) (Monday through Sunday) Key Messages: 1.
Fall-like temperatures will finish out the weekend as high pressure continues to dominate the weather pattern.
(Today through Monday afternoon) Weak mid level ridging will maintain its presence over the area early this week. Deep easterly flow will also keep temperatures in check with highs generally in the low to mid 80s and very comfortable lows in the 50s.
Late week will see a 500 mb low move into Idaho but latest trends indicate 500 mb ridge building north and strenghtening Thu-Sat period and lessening precip chances compared to 24 hours ago. Temperatures will be warming considerably today as 850 mb warm advection is taking place with warmest temps today being northern Red River valley where upper 80s are possible esp along the Pembina escarpment ridge from west of Park River up to west of Morden MB.
1226 AM CDT Sun Sep 8 2024 (Tonight through Sunday night) A cold front has moved to the upper TX coast and stretches back across the Coastal Plains to the Rio Grande near Eagle Pass. High pressure will continue to dominate during the short term. Temperatures Sunday will also be cooler than today with highs mostly in the 80s with parts of the Rio Grande Plains reaching the lower 90s.