Aikyam-Lab/Synoptic-Bench huggingface dataset:
1018 PM EDT Fri Sep 6 2024 A weak wave of low pressure will track east along a stationary front off the Carolina Coast and could spread some light rain across parts of the area south and east of Interstate 85 through tonight. A cold front will then sweep southeast across the region on Saturday, but with little moisture.
/NEW/ /Tonight through Saturday Night/ Scattered showers and a few thunderstorms have developed along a southward moving cold front this afternoon with additional development farther south along a well defined outflow boundary. The actual cold front appears to still be across southern Oklahoma as indicated by an appreciable drop off in surface theta-e to the north. Saturday morning will be fantastic with dewpoints falling into the lower 50s and a steady north wind.
716 PM CDT Fri Sep 6 2024 Cold front is sliding south across the forecast area late this afternoon. Lacy (The rest of this afternoon and tonight) Widely scattered showers have developed across far southeast Oklahoma/west-central Arkansas this afternoon ahead of cold front.
659 PM EDT Fri Sep 6 2024 * Lake effect rain showers will expand across the Thumb region late today into tonight as cool, northerly flow arrives behind a cold front. * This much cooler airmass will lead to daytime highs only in the upper 50s to low 60s on Saturday.
827 PM MDT Fri Sep 6 2024 Upper level high pressure will will maintain unseasonably warm and dry conditions across the area through the weekend with generally light winds prevailing.
446 PM MDT Fri Sep 6 2024 - High pressure continues to bring light winds, mostly clear skies, and slightly above normal temperatures on Friday.
All is generally on track for this near term forecast update as rain continues to diminish and cooler air filters into the region.
614 PM CDT Fri Sep 6 2024 (The rest of this afternoon and tonight) Widely scattered showers have developed across far southeast Oklahoma/west-central Arkansas this afternoon ahead of cold front.
Ridge across the Atlantic continues to have a commanding presence across Florida and the eastern Gulf of Mexico. Rain chances will remain slight at best due to a combination of dry air intruding into the mid levels and the aforementioned ridge in place. Expansive high pressure over the western North Atlantic extending westward towards the Florida Peninsula will promote gentle to moderate east to southeast breezes for the next several days.
Mostly dry, warmer than normal conditions will last through the start of the weekend.
The upper level ridge that brought the most recent round of heat will ease tonight as an upper level low approaches the OR/CA border. The weakening ridge will allow for increased onshore flow at the surface along with lower 500mb height/cooling 850mb temps. marine layer and cooler/wetter start to the day.
650 PM CDT Fri Sep 6 2024 (Rest of Today and Tonight) The remainder of the day will continue to be influenced by the Gulf low pressure supporting mostly cloudy conditions across the CWA. By this evening, an approaching cold front from the NW will aid in pushing overcast conditions east. Despite the approaching cold front, nearly all the impacts of it will be felt in the short term.
Dry air can be seen via radar starting to infiltrate into the NW, potentially a byproduct of the hand off from the low over the gulf coast to the new low developing off the Georgia coast. Overnight temperatures were also updated to be a bit warmer thanks to some higher dewpoints as a result of the little bit of rain that did occur. Lusk (This afternoon through Saturday) Tropical low pressure is situated across the NW GOMEX. The low pressure will interact with the wedge front, funneling deep moisture from the GOMEX northward into portions of south GA. A weak cold front is expected to move through during the day on Saturday, helping to scouring out any lingering tropical moisture. The highest rainfall amounts should be south of MCN to CSG.
The low pressure system responsible for the rain and cloud cover all week has started to shift southward into the Gulf ahead of an approaching cool front. These lower dewpoints will also allow for cooler temps, with morning lows expected to fall into the low to mid 60s in those same areas. A cold front across Arkansas to move south across the ArkLaTex late this afternoon and this evening with weak convection igniting along the boundary across south Arkansas and northeast Texas. Dry high pressure building behind the frontal boundary to allow for overnight low temperatures to fall into the low to mid 60s with the coolest temperatures along and north of I-30. Dry conditions expected on Saturday as dry high pressure becomes firmly established across the region through the weekend.
Smoke output will settle into mountain valleys overnight, draining into the lower Snake Plain early Saturday morning.
Upper level high pressure will will maintain unseasonably warm and dry conditions across the area through the weekend with generally light winds prevailing.
541 PM CDT Fri Sep 6 2024 - A cold front will bring markedly cooler temperatures this weekend and refreshingly lower humidity. Isolated convection along a cold front making passage will continue to be possible until its passage is complete. Cooler/drier air will be incoming behind the front, with some lag of course.
(Tonight) A cold front extending from western West Virginia, to north of Nashville, near Memphis, and SW Arkansas was nearing the Tennessee Valley from the NW. Lift of a warmer airmass just east of this boundary has resulted in the development of scattered showers and thunderstorms. Low temperatures otherwise should cool into the low/mid 60s.
Unseasonably deep upper level low and sharp upper level trough axis continue to slide thru Eastern Upper and Lower Michigan late this evening. with overnight lows dropping into the low to mid 40s. Early autumn looking upper trough evident on water vapor imagery continues to dig into the region at the moment. The upper trough quickly lifts out to the northeast late tonight into Saturday (which is much faster than what it looked like a couple of days ago).
307 AM CDT Sat Sep 7 2024 - Quiet weather with cooler temperatures this weekend and plenty of sunshine. This high pressure will slide south and east across the area today bringing lower humidity to the area. Tonight, the high pressure will be over central Illinois. With the lower dewpoints and clear skies again, we will see even cooler temps tonight across the area will lows in the lower to mid 40s are possible. Little change in the forecast through the end of the week as upper level ridging to our west smooths out and becomes more zonal. Lows starting out in the 50s will eventually be more like the low 60s to end the week as the next wave moves towards the area.
254 AM CDT Sat Sep 7 2024 - Cooler today after some morning frost and freeze.
354 AM EDT Sat Sep 7 2024 Much cooler air and plenty of clouds will overspread the region today.
1151 PM EDT Fri Sep 6 2024 * Lake effect rain showers will expand across the Thumb region late today into tonight as cool, northerly flow arrives behind a cold front. * This much cooler airmass will lead to daytime highs only in the upper 50s to low 60s on Saturday.
220 AM MDT Sat Sep 7 2024 Look for our current warm yet quiet weather pattern to continue this weekend as high pressure aloft prevails.
(Today) A pleasant fall like day is on tap for eastern Oklahoma and western Arkansas today as high pressure continues to build into the area.
943 PM MDT Fri Sep 6 2024 - High pressure continues to bring light winds, mostly clear skies, and slightly above normal temperatures on Friday.
321 AM EDT Sat Sep 7 2024 Much cooler weather is expected today as high pressure of Canadian origin begins to build into the region from the west.
335 AM EDT Sat Sep 7 2024 Rain shower activity increases this morning through the day today from west to east, as a cold front moves through the area.
As of 2AM, dew points across the area are still in the low to mid 60s but dew points across the Red River have already dropped into the mid 50s. Skies across the area should be mostly sunny with temperatures near to slightly below where they were yesterday, generally in the low to mid 80s.
- Temperatures in the lower to middle 30s across northern WI this morning may lead to areas of frost. After some morning frost across north-central Wisconsin, temperatures across the region are only expected to rise into the lower to middle 60s by this afternoon, which is well below normal for this time of year. The increased clouds will keep temperatures a few degrees warmer tonight as lows range from the lower 40s across the north, to the middle 40s across central and east-central Wisconsin.
1212 AM CDT Sat Sep 7 2024 (Tonight) A cold front extending from western West Virginia, to north of Nashville, near Memphis, and SW Arkansas was nearing the Tennessee Valley from the NW. Lift of a warmer airmass just east of this boundary has resulted in the development of scattered showers and thunderstorms. Low temperatures otherwise should cool into the low/mid 60s.
Cooler air arrives behind a cold front today and tonight with an early fall-like feel. Discussion: A cold front is moving across the region this morning with isolated very light rain showers. Northerly winds will increase to 5 to 15 mph behind the cold front today with some lower RH values near 30 percent possible as drier air arrives.
Synoptic overview and current conditions: Upper level analysis and water vapor imagery show a deep trough from a low over the Great Lakes extending southward into the Ohio valley. Broad north to northwest flow west of the low from the northern plains into our CWA, with an upper ridge from the 4 corners into southern Alberta.
1254 AM MDT Sat Sep 7 2024 - High pressure keeps warm temperatures, light winds, and limited rain chances.
1046 PM CDT Fri Sep 6 2024 - A cold front will bring markedly cooler temperatures this weekend and refreshingly lower humidity. Isolated convection along a cold front making passage will continue to be possible until its passage is complete. Cooler/drier air will be incoming behind the front, with some lag of course.
(Today) Precipitation associated with a cold front passing through the area has deteriorated and as a result, dry conditions are forecast through the remainder of the early morning hours. A cooler, drier air mass will filter into the region from the north today and it will feel quite refreshing for early September.
This is in response to a cool high pressure that will drift east through the day. As it does, southerly flow will develop and temperatures will be a couple of degrees warmer today and Friday, although still below normal.
A crisp early autumn morning across the area today, with a strong Canadian high pressure centered over the Upper Midwest. Aloft, this is tied to a strong upper low diving southeast across the Great Lakes. Farther west, a band of persistent mid-level clouds is keeping temperatures 5-10 degrees warmer.
1210 AM MDT Sat Sep 7 2024 Upper level high pressure will will maintain unseasonably warm and dry conditions across the area through the weekend with generally light winds prevailing.
In these ideal conditions, temperatures usually end up on the lowest end of model guidance which puts the upper 30s in play for areas near Muncie.
227 AM CDT Sat Sep 7 2024 - Much cooler temperatures and lower humidity this weekend. Surface ridging this weekend will bring dry weather and much cooler temperatures.
1229 AM CDT Sat Sep 7 2024 Newer model forecast guidance pointed to a slightly cooler low temperature forecast of 1-2 degrees for central and northern St. - Much cooler temperatures expected into Saturday.
(Today and tonight) Light winds and mostly clear skies are expected tonight as high pressure builds to the west. As such, lows will be slightly cooler than last night generally ranging from the mid 50s to lower 60s. Quiet conditions will continue through the day, with light southeasterly winds and highs reaching the low-to-mid 80s.
High pressure sets up over Illinois today. Copple Approaching high pressure will bring mostly clear skies for the upcoming 24 hours.
1218 AM CDT Sat Sep 7 2024 (This evening through Saturday) A few showers/thunderstorms will remain possible this afternoon as a weak upper level short wave trough moves southward over the southern Plains. Upper level short wave ridging will follow and should result in fair weather for the forecast area through Saturday. Will run with the slightly warmer NBM (relative to MOS) for overnight lows as lingering moist soils are likely to keep surface dew point temperatures for dropping as far as MOS suggests.
Surface analysis has changed little during the past 24 hours, with weak Atlantic high pressure extending west into South Florida, and a stationary front draped from the western Atlantic across North Florida and the northern Gulf of Mexico. Aloft, the subtropical ridge remains dominant at all levels across our region. 93 inches, with rather weak lapse rates in the lower to mid levels, reflecting the ridge aloft. Hot and generally drier than normal weather is expected to continue across the Keys today and through the rest of the weekend, as ridging aloft remains dominant over our area. Mid latitude troughing over the eastern CONUS will maintain the stationary front draped over north Florida, but the subtropical ridge will not allow this front to progress farther southward.
354 AM EDT Sat Sep 7 2024 Rain shower activity increases this morning through the day today from west to east, as a cold front moves through the area.
1228 AM EDT Sat Sep 7 2024 Much cooler air and plenty of clouds will overspread the region today.
A slight cool down will begin today as a weak upper level trough impacts the region, yet temperatures remain above seasonal norms through early in the upcoming week. Tonight, look for better humidity recoveries in all but the highest elevations. Thus, temperatures will drop into the low to upper 50's across much of the region, near 60 degrees across the Santa Clara Valley, and 60's to upper 70's in the higher peaks of the Central Coast.
319 AM EDT Sat Sep 7 2024 A slow-moving cold front will push across the state tonight and Saturday.
A departing upper low currently centered over Lake Huron with a trailing weaker PV anomaly being pushed south through MT amid N/NW flow along the eastern periphery of upper riding has weather looking very benign for the short term. Ridging becomes more pronounced through the weekend with warming temps and little worry for weather impacts.
101 AM EDT Sat Sep 7 2024 The cold front is currently (9PM EDT) over Central Kentucky and Western Tennessee, moving into Middle Tennessee shortly. The cold front will move through tomorrow morning. A cold front will bring low chances of light rain across our northern half late tonight through early afternoon Saturday. Discussion: The forecast area remains squished between two weather systems; an anomalous trough swinging into the Great Lakes region and a closed upper low in the western Gulf. Enhanced moisture associated with the closed low remains primarily to our south. On-going convection across the Ohio valley will slowly track southeast tonight and into early Saturday morning in association with an approaching cold front.
205 AM EDT Sat Sep 7 2024 A weak wave of low pressure will track east along a staionary front off the Carolina Coast and could spread some light rain across parts of the area south and east of Interstate 85 through tonight. A cold front will then sweep southeast across the region on Saturday, but with little moisture.
1228 AM CDT Sat Sep 7 2024 Cold front is sliding south across the forecast area late this afternoon. Lacy (The rest of this afternoon and tonight) Widely scattered showers have developed across far southeast Oklahoma/west-central Arkansas this afternoon ahead of cold front.
1008 PM CDT Fri Sep 6 2024 Newer model forecast guidance pointed to a slightly cooler low temperature forecast of 1-2 degrees for central and northern St. - Much cooler temperatures expected into Saturday.
A beautiful weekend is upon us behind yesterday's cold front with highs today and tomorrow in the mid 70s to lower 80s.
The chance for precipitation is fairly low, given the overall subsidence aloft from the upper-level ridge, but did keep PoPs around 15-20% for the afternoon hours. Temperatures today will be warmer than yesterday, with highs in the upper-70s to upper-80s across the Panhandle.
1220 AM CDT Sat Sep 7 2024 All is generally on track for this near term forecast update as rain continues to diminish and cooler air filters into the region.
A large area of high pressure centered over Ontario, is ridged well to the south through Iowa and into Kansas. The area of will settle south today and will be over eastern Iowa and adjacent eastern areas by this afternoon in part due to the steep northerly flow aloft on the western side of the departing upper low pressure. The upper low is lifting through the central Great Lakes this morning and will begin to accelerate northeast through this weekend. The Canadian high pressure arriving today and the northerly flow aloft holding the thermal trough across the state, it will lead to another cool day with generally light winds and mostly sunny skies.
(Today through Sunday) A deep upper low is presently lifting slowly NE across the central Great Lakes with a trough extending S to NE GA and then SW over SE TX. At the surface, low pressure off the SE GA coast has dragged the formerly stationary front across N FL farther S. The wedge from the mid- Atlantic to E GA is weakening as a cold front approaches GA from the NW. As cool air filters in behind the aforementioned cold front, low temperatures tonight will range from near 50 in the NE mountains to the mid 60s across the S third of the County Warning Area. High temperatures on Sunday will range from the lower 70s in the NE mountains to the lower 80s across N Central GA.
631 AM CDT Sat Sep 7 2024 A beautiful weekend is upon us behind yesterday's cold front with highs today and tomorrow in the mid 70s to lower 80s.
552 AM CDT Sat Sep 7 2024 (Today) Precipitation associated with a cold front passing through the area has deteriorated and as a result, dry conditions are forecast through the remainder of the early morning hours. A cooler, drier air mass will filter into the region from the north today and it will feel quite refreshing for early September.
------------------------------------------------------------------ A cold front is slowly making its way south across our region, ushering in much drier air compared to the last few days. The one exception will be within the immediate Dallas/Fort Worth Metroplex where the Heat Island Effect will keep temperatures in the lower 60s. With northwesterly winds continuing into the day on Sunday, afternoon temperatures will be in the lower to mid 80s.
A cold frontal boundary is expected to sweep through the CWA later today from the NW, bringing N/NE flow into the Lower Mississippi Valley region. Highs are expected to remain in the lower to middle 80s, which is slightly above average for September, but comfortable compared to the past few weeks. /AJ/ Sunday through Saturday: As the drier post-frontal airmass advects in to dominate the area, an upper-level ridging pattern begins to setup. The end of the weekend into the beginning of the week high pressure will be dominate across much of eastern CONUS.
Current surface analysis places trough to the lee of the Canadian Rockies with broad high stretching from Hudson Bay southwestward through the Upper Midwest into the Central and Northern Plains. Upper level analysis places low over Lake Huron with ridge over the western CONUS. Upper ridge will gradually push its way towards the east resulting in a warming trend over our area along with continued dry conditions through the first part of the upcoming week. Towards mid-week, Pacific trough moves onshore and greatly deepens as it moves over the western CONUS.
623 AM EDT Sat Sep 7 2024 Rain shower activity increases this morning through the day today from west to east, as a cold front moves through the area.
655 AM EDT Sat Sep 7 2024 Rain shower activity increases this morning through the day today from west to east, as a cold front moves through the area.
An Atlantic ridge remains in place at the surface with this ridge extending westward into Florida. From synopsis, high pressure over the western North Atlantic extending westward into South Florida will maintain gentle to moderate east to southeast breezes across the Keys coastal waters through the next several days.
620 AM CDT Sat Sep 7 2024 (Today) A pleasant fall like day is on tap for eastern Oklahoma and western Arkansas today as high pressure continues to build into the area.
Today will be most likely dry as the Tri-State area sits along the leading edge of the upper ridge. Tomorrow, a cut-off trough will swing across the Northern Rockies and into the Nebraska Panhandle and South Dakota then southeast towards the forecast area. Sunday will be a bit warmer with highs in the 80s to lower 90s and overnight lows in the 50s to lower 60s. The start of the work week and into the mid week is forecast to be dictated by upper ridging over the Plains.
* Cool today with daytime highs in the low 60s. SE Michigan remains on the western periphery of an upper trough axis through the weekend, ensuring seasonably cool conditions amidst deep northwest flow. The base of this trough has been carved out mostly by an upper low which is now over Lake Huron. The thermal trough axis passes overhead this evening, while favorable radiational cooling conditions overnight ensure a chilly start to Sunday. Temperatures on Sunday will quickly rebound as another PV tongue dives into SE Michigan and dislodges the upper low toward Quebec. This feature will advect a theta-e plume, originating over far northern Canada, into SE Michigan which will boost 850mb temperatures +8 to +10 C during the day Sunday, bringing highs into the low 70s.
A crisp early autumn morning across the area today, with a strong Canadian high pressure centered over the Upper Midwest. Aloft, this is tied to a strong upper low diving southeast across the Great Lakes. Farther west, a band of persistent mid-level clouds is keeping temperatures 5-10 degrees warmer. By Sunday, southerly winds will return as high pressure continues moving off to the east and upper ridging builds over the Plains. Guidance does depict an upper trough approaching the Plains for the second half of the week, which would increase humidity and heat indices as higher dewpoints are advected north.
Cooler air arrives behind a cold front today and tonight with an early fall-like feel. Discussion: A cold front is moving across the region this morning with isolated very light rain showers. Northerly winds will increase to 5 to 15 mph behind the cold front today with some lower RH values near 30 percent possible as drier air arrives. Daily Record Low Minimum Temperatures Date Chattanooga Knoxville Tri-Cities Oak Ridge 09-08 52(2017) 46(1984) 44(2017) 49(2017) (Sunday through Saturday) Key Messages: 1.
637 AM CDT Sat Sep 7 2024 (Today and tonight) Light winds and mostly clear skies are expected tonight as high pressure builds to the west. As such, lows will be slightly cooler than last night generally ranging from the mid 50s to lower 60s. Quiet conditions will continue through the day, with light southeasterly winds and highs reaching the low-to-mid 80s.
621 AM CDT Sat Sep 7 2024 (Saturday through Sunday) Cold front as of 06z was located very near the I-30 Corridor and will continue making progress south and east this morning, moving to near the I-20 Corridor by 12z and through our entire CWA by 18z this afternoon.