Aikyam-Lab/Synoptic-Bench huggingface dataset:
H5 hand analysis from earlier this morning had a trough of low pressure extending from the arrowhead of Minnesota south to southwestern Oklahoma. At the surface, high pressure was located across western Kansas. For tonight: High pressure will build east into the Ozarks. Warmer air will push into western and north central Nebraska overnight, however dry boundary layer air will still persist.
/Issued 309 PM CDT SAT SEP 10 2016/ Nice fall preview this afternoon with mild/dry conditions behind cold front that has pushed well south of the area.
1145 PM EDT SAT SEP 10 2016 CAA continues across the Western Great Lakes region late this evening in the wake of a departing cold front. Deep cyclonic flow and plenty of low level moisture wrapping around the backside of the low continue to produce scattered lake-enhanced rain showers. Areal coverage and intensity of these showers have shown a steady diminish over the past couple of hours as the upstream ridge axis begins to edge toward Wisconsin. with low temps only falling into the lower 50s for most locations. Overview: Short wave trough axis now working into the western Great Lakes with entrance region of upper jet streak stretching from the western Great Lakes into Canada. Cold front and leading line of heavy showers/isolated thunder down into Saginaw Bay. Sunday: High pressure and drier air overspreads the region.
The cold front based on dew points and a secondary wind shift was from just west of Louisville through Dyersburg TN to near Conway AR. A wind shift to the NW behind the showers and thunderstorms will occur, following close behind with a cold front passage by around 07Z with a second wind shift to the N.
/Issued 322 PM CDT SAT SEP 10 2016/ Light northwesterly flow upstream of the main upper level trough axis across the midwest will continue to bring tranquil weather across the Panhandles.
727 PM EDT SAT SEP 10 2016 High pressure in the forecast area will weaken ahead of an approaching cold front.
Did see another boundary, a secondary surge of slightly cooler air with winds gusting to 20 to 25mph move through the Austin area over the last few hours. Upper air analysis this morning showed a weak low over east Texas with a deep trough over the Great Plains. At the surface, a cold front was stretched from La Grange to San Antonio to Pandale. The upper low will drift slowly toward the east beneath a broad ridge during this period.
914 PM EDT Sat Sep 10 2016 Tonights cold front will usher in seasonal temperatures for the new week. Nevertheless, showers and some wind gusts will accompany the cold front across the region. A refreshing air mass change is expected for this period behind the boundary with high pressure in command.
/ISSUED / Evening surface analysis showed a nearly stationary cold front draped across Southeast Texas, stretching from near Columbus to Jasper. Isolated to scattered thunderstorms continue to fire along this boundary this evening, as weak disturbances rotate around an upper trough located along the Upper Texas Coast.
Expect temperatures to fall into the low to mid 70s tonight for lows. High pressure will remain in control tonight. An upstream trough digging into LA/MS will support a surface cold front into south AL and central GA. All in all, a quiet night is in store with lows in the lower to middle 70s.
1151 PM CDT SAT SEP 10 2016 H5 hand analysis from earlier this morning had a trough of low pressure extending from the arrowhead of Minnesota south to southwestern Oklahoma. At the surface, high pressure was located across western Kansas. For tonight: High pressure will build east into the Ozarks. Warmer air will push into western and north central Nebraska overnight, however dry boundary layer air will still persist.
NW winds will usher in a cooler, drier airmass overnight. As of mid-afternoon, a strong surface cold front extended from central Indiana through western and central Kentucky down into portions of northwestern TN. Drier and cooler air will surge into the region later this evening and overnight with steady northwest winds. Sunday will be a very pleasant, early fall day across southern Indiana and central Kentucky with low humidity, temperatures in the 70s and overall light winds as the center of high pressure moves overhead.
Return flow pressure gradient hasn't really established itself yet, and light southerly drainage winds have developed. As the high shifts over the Midwest later tonight, the pressure gradient will strengthen with breezy downslope wind possible on the lee side of the Sisseton Hills. The southerly winds will bring warmer and dry air into the region on Sunday with highs exceeding 80 degrees for most location.
Tomorrow, VFR will continue with veering winds courtesy of the passage of a weak cold front. /issued 230 PM CDT SAT SEP 10 2016/ SHORT TERM (Tonight through Sunday Night): Water vapor imagery shows an upper level low over the upper Texas coast this afternoon. A mid level height center over the Southeast United States is supporting high pressure over the northern Gulf Coast. A short wave trough is currently digging into the southern plains with a cold front draped across central Texas. The weak cold front is expected to stall just north of the CWA.
Cold front has pushed into eastern Middle Tennessee at 02z with convection along and just ahead of the front. Have removed pops over the west half of the Mid State and updated grids and zones with only small pop on plateau late evening or just before midnight, No pops after 06z in Middle Tennessee but upper trough axis still west of Mississippi River with much drier air and cooler temps already working in from the northwest. Convection has pulled off the plateau at 04z with front working right along the plateau as upper trough swings across the area.
614 PM CDT SAT SEP 10 2016 /00Z TAFS/ Cold front has pushed south out of West Central Texas this afternoon and taken the vast majority of the rainfall with it. /issued 334 PM CDT SAT SEP 10 2016/ (Tonight and Sunday) A cold front has cleared all of West Central Texas this afternoon, with a few lingering post frontal showers and thunderstorms continuing, mainly across Crockett County. Overnight lows will drop into the low to mid 60s for most locations.
621 PM CDT SAT SEP 10 2016 Canadian high pressure is building into the area from the north this afternoon, bringing with it a shot of much cooler and drier air. Dewpoints have fallen into the 50s for most early this afternoon, with afternoon temperatures only reaching the low 70s. Temperatures tonight should fall into the low 50s, with a few of the cooler spots across the eastern Ozarks touching the upper 40s. With an upper level high over Baja California.
/issued 828 PM CDT SAT SEP 10 2016/ The cold front and associated isolated to scattered showers and thunderstorms were pushing southeast towards central and north central Louisiana tonight, though a few showers managed to backbuild across portions of north Louisiana. Furthermore, this cold front has ushered in a cooler and drier airmass, and the current forecast did not quite reflect this trend. along the weak cold front and line of agitated cu over these areas. The short term progs are now depicting even cooler temps than earlier runs tonight through Sunday night.
639 PM CDT Sat Sep 10 2016 Saturday evening's weather includes a low pressure area centered over central Alberta with a warm front extending into western North Dakota. A cold front also extended from the low in Alberta southwest into northwest Montana. With time the low will move east and the cold front will move into western North Dakota Sunday afternoon. Because the airmass is very dry there will be no precipitation but the region will be much warmer on Sunday, especially south central, before the cold front moves through. Highs on Sunday will be in the lower 70s to the lower 80s and will be the warmest day for some time.
838 PM EDT SAT SEP 10 2016 High pressure remains anchored over the southeast states into tonight. A cold front crosses the area Sunday.
Latest sfc analysis indicates that this activity is just along and ahead of the main cold frontal boundary. In the ext fcst, weak w-e ridging will prevail. Late in the extended, we will see a pattern change as stronger upper troughing and a frontal boundary moves our way. We will transition from Maritime Tropical to a Continental air mass which means cooler and drier air for a day or two.
High pressure will continue to build in across the region which will usher in mostly clear skies and dry air. Sunday will be mostly sunny, dry and mild with weak ridging aloft and light northerly flow through a deep layer of the atmosphere.
with the high centered near the TX panhandle. The ridge of high pressure has provided fair skies across the area today. The low level warm front will push through the area late tonight. setting the stage for a warmer-than-normal Sunday ahead of a cold front approaching from the northwest late in the day. With normals running in the low 70s at GFK and FAR.
Late summer/early fall cold front is currently working its way through the southeastern states. Interestingly, the talk with the weak cold front is on temperatures and dewpoints. 25/Owen Isolated to scattered rain chances continue through the weekend as a weak cold front drops into the area.
25/Owen Isolated to scattered rain chances continue through the weekend as a weak cold front drops into the area. /Issued 629 PM CDT SAT SEP 10 2016/ Late summer/early fall cold front is currently working its way through the southeastern states. Interestingly, the talk with the weak cold front is on temperatures and dewpoints.
Some fragments of stratocu will continue to funnel through at times as the upper trough kicks across and over lake instability increases, but generally looking a predominant scattered condition through the morning period. Good plume of moisture in place ahead of the cold front tracking through the western half of Lower Michigan will support numerous showers and a few thunderstorms as the front progresses east through the early evening. Upper trough axis will slide across the area this evening and overnight, while cooler air flows in behind the front.
Cold front has pushed into eastern Middle Tennessee at 02z with convection along and just ahead of the front. Have removed pops over the west half of the Mid State and updated grids and zones with only small pop on plateau late evening or just before midnight, No pops after 06z in Middle Tennessee but upper trough axis still west of Mississippi River with much drier air and cooler temps already working in from the northwest. We will transition from Maritime Tropical to a Continental air mass which means cooler and drier air for a day or two.
Some fragments of stratocu will continue to funnel through at times as the upper trough kicks across and over lake instability increases, generally looking for a trend toward mostly clear skies overnight. Good plume of moisture in place ahead of the cold front tracking through the western half of Lower Michigan will support numerous showers and a few thunderstorms as the front progresses east through the early evening. Upper trough axis will slide across the area this evening and overnight, while cooler air flows in behind the front.
Saturday evening's weather includes a low pressure area centered over central Alberta with a warm front extending into western North Dakota. A cold front also extended from the low in Alberta southwest into northwest Montana. With time the low will move east and the cold front will move into western North Dakota Sunday afternoon. Because the airmass is very dry there will be no precipitation but the region will be much warmer on Sunday, especially south central, before the cold front moves through. Highs on Sunday will be in the lower 70s to the lower 80s and will be the warmest day for some time.
746 PM EDT SAT SEP 10 2016 A cold front will push through the area this evening. High pressure and dry conditions with more comfortable temperatures will build in for the early part of the week.
715 PM EDT Sat Sep 10 2016 Showers and thunderstorms are likely ahead of a cold front passage tonight. As of 7pm, line of showers and thunderstorms with a cold front has reached eastern Ohio counties. Line of thunderstorms associated with a cold front will approach the region this evening. Cooling temperatures aloft remain back with the primary 500mb trough and mid-level lapse rates are not very steep so hail does not look to be an issue. Have left the PoPs as is, and actually held onto chance values a bit longer based on the latest hi res model guidance as the upper trough pivots over the Great Lakes. A refreshing air mass change is expected for this period behind the boundary with high pressure in command.
628 PM CDT SAT SEP 10 2016 The passage of a cold frontal boundary last night has left the area under high pressure with mostly clear skies, a nice dry NW breeze, and highs in the low to mid 70s. This nice trend will continue into Sunday with the temperatures rising slightly into the upper 70s as warm air advection returns on the backside of the high pressure.
828 PM CDT SAT SEP 10 2016 The cold front and associated isolated to scattered showers and thunderstorms were pushing southeast towards central and north central Louisiana tonight, though a few showers managed to backbuild across portions of north Louisiana. Furthermore, this cold front has ushered in a cooler and drier airmass, and the current forecast did not quite reflect this trend. With much cooler dewpoints falling into the 50s, no fog expected. along the weak cold front and line of agitated cu over these areas. The short term progs are now depicting even cooler temps than earlier runs tonight through Sunday night.
Otherwise, adjusted temps to match the latest guidance/obs with cooler overnight lows in the NW behind the front. After noon, scattered SHRA/TSRA will develop as a cold front slowly pushes through the area.
936 PM EDT SAT SEP 10 2016 A cold front will push through the area late this evening. High pressure and dry conditions with more comfortable temperatures will build in for the early part of the week.
1216 AM EDT SUN SEP 11 2016 Much cooler and drier humid air will overspread the region overnight with lows in the 50s. Pre frontal trough along the I-69 corridor with band of showers accompanying it. Highest pops maintained along/ahead of trough with lingering slgt chance/chc pops behind this area. Sunday should be dry and mostly sunny with highs in the lower to middle 70s.
Update The cold front continues to move through southern British Columbia this evening. This will bring cooler and possibly some wet weather to the region in day two. Proton An upper trof will swing out of British Columbia tonight and begin to split as it moves across Montana. By midweek a cut off low will be in place over the Great Basin while the northern portion of the trof moves through central Canada. Cold front crosses the state from the north on Sunday morning with moisture and cold air filtering south later in the day.
Latest surface observations also confirm that the surface cold front has already passed through Calgary. Upper level trough developing over western Canada will deepen and sweep southeastward over the Northern Rocky Mountain Region by late Sunday afternoon. An associated surface cold front will cross the Canadian Border around 12z Sunday, bringing rain and gusty north winds to northern portions of the forecast area.
Chattanooga Airport, TN 69 86 65 89 / 30 0 10 10 Knoxville McGhee Tyson Airport, TN 69 84 62 87 / 30 0 10 10 Oak Ridge, TN 67 85 61 87 / 40 0 10 10 Tri Cities Airport, TN 65 82 58 85 / 40 10 10 10.
807 PM EDT SAT SEP 10 2016 A cold front will push through the area this evening. High pressure and dry conditions with more comfortable temperatures will build in for the early part of the week.
Temperatures range from the lower 80s in rain cooled areas to the mid 80s elsewhere. A weak area of low pressure over the extreme southeastern Gulf of Mexico will move in a general westward direction overnight.
/issued Issued by National Weather Service SAN ANGELO TX/ Cold front has pushed southward out of the forecast area today. with scattered showers and thunderstorms lingering this evening across the Lower Trans-Pecos and Big Bend Region.
The cold front based on dew points and a secondary wind shift was from just west of Louisville through Dyersburg TN to near Conway AR. For 06Z TAFs: A cold front will shift winds to the north by 07-08Z with drier air filtering into the region through Sunday morning.
1005 PM EDT SAT SEP 10 2016 A cold front slowly approaches from the west tonight, and crosses the area on Sunday.
1004 PM CDT SAT SEP 10 2016 At 3 PM, an upper level trough of low pressure was located over eastern Wisconsin. This precipitation should end late this afternoon as the trough moves east into Michigan. First, the winds aloft will be increasing as the ridge moves off to the east late tonight. 12z deterministic models show that mid and high clouds, associated with warm air advection ahead of a short wave trough moving out of Alberta, will be moving into the forecast area.
848 PM EDT SAT SEP 10 2016 HIGH PRESSURE SURFACE AND ALOFT REMAINS ACROSS THE REGION.
Landry Parish, in addition to scattered convection over northern Louisiana associated with a cold front. /issued 311 PM CDT SAT SEP 10 2016/ A short wave trough moving across the mid and upper Mississippi Valleys this afternoon will push east across the Great Lakes and Ohio Valley regions tonight and into the northeast conus on Sunday. This feature will push a weakening cold front south into the region on Sunday which will stall out across the CWA through the early part of the week before becoming diffuse. Rain chances will lower a bit during the mid week period as the aforementioned features weaken/dissipate while upper level ridging builds over the Gulf Coast and southeast.
711 PM EDT SAT SEP 10 2016 Much cooler and drier humid air will overspread the region this evening. Pre frontal trough along the I-69 corridor with band of showers accompanying it. Highest pops maintained along/ahead of trough with lingering slgt chance/chc pops behind this area. Sunday should be dry and mostly sunny with highs in the lower to middle 70s.
722 PM CDT SAT SEP 10 2016 High pressure ridge was right over the forecast area at 0Z/7pm. These showers will dissipate with loss of diurnal heating and the upper trof moving farther east. Cool cyclonic flow to the west of the main trough axis, combined with mid-September sunshine, has generated a healthy Cu field across much of my forecast area. The southerly breezes will usher in warmer temperatures with highs in the middle 60s near Grand Marais to the low to middle 70s elsewhere.
945 PM CDT Sat Sep 10 2016 Evening surface analysis showed a nearly stationary cold front draped across Southeast Texas, stretching from near Columbus to Jasper. Isolated to scattered thunderstorms continue to fire along this boundary this evening, as weak disturbances rotate around an upper trough located along the Upper Texas Coast. /ISSUED / A cold front is pushing south into SE TX and this feature will likely serve as a focus for additional showers and storms through 04-05z.
1038 PM EDT SAT SEP 10 2016 High pressure in the forecast area will weaken ahead of an approaching cold front.
With much cooler dewpoints falling into the 50s, no fog expected. along the weak cold front and line of agitated cu over these areas. The short term progs are now depicting even cooler temps than earlier runs tonight through Sunday night.
1100 PM CDT SAT SEP 10 2016 The passage of a cold frontal boundary last night has left the area under high pressure with mostly clear skies, a nice dry NW breeze, and highs in the low to mid 70s. This nice trend will continue into Sunday with the temperatures rising slightly into the upper 70s as warm air advection returns on the backside of the high pressure.
1051 PM EDT SAT SEP 10 2016 A cold front will finish crossing the area tonight. A large area of high pressure will build northeast into the Great Lakes region by Sunday afternoon.
1151 PM CDT SAT SEP 10 2016 Canadian high pressure is building into the area from the north this afternoon, bringing with it a shot of much cooler and drier air. Dewpoints have fallen into the 50s for most early this afternoon, with afternoon temperatures only reaching the low 70s. Temperatures tonight should fall into the low 50s, with a few of the cooler spots across the eastern Ozarks touching the upper 40s. With an upper level high over Baja California.
25/Owen Isolated to scattered rain chances continue through the weekend as a weak cold front drops into the area.
631 PM CDT SAT SEP 10 2016 At 3 PM, an upper level trough of low pressure was located over eastern Wisconsin. This precipitation should end late this afternoon as the trough moves east into Michigan. First, the winds aloft will be increasing as the ridge moves off to the east late tonight. 12z deterministic models show that mid and high clouds, associated with warm air advection ahead of a short wave trough moving out of Alberta, will be moving into the forecast area.
Large low pressure spinning up the Ohio Valley will continue to create gusty winds with scattered showers today.
1147 AM CDT Thu Apr 6 2017 A long-awaited warmer and drier spell is upon us. Subjective 00Z upper-air analysis indicates broad upper-level troughing from the western Great Lakes/upper MS River valley toward the lower MS River valley, with ridging across the Great Basin and rising 500mb heights across the Rockies to the High Plains. An 850mb low was centered over IN/IL, with sub-0C temperatures dipping south through IA/MO behind the low.
Post frontal showers continue across parts of the cntrl TN Valley this early Thu morning, as the potent upper low/trough axis pushes ewd through the SE states. Latest short term guidance is not hinting at much changing going into the daytime hrs, with the trough pattern gradually making its way towards the Atlantic Coast. With the frontal passage/nw winds, cooler air will begin to stream into the area later today, with highs struggling to reach the 60F mark, which translates to around a 20F diff from Wed high temps. Strong ridge of high pressure building swd across the Plains states will begin to translate sewd into the region starting Tonight, thereby allowing sfc winds to gradually diminish. With the departing upper low/trough axis over the SE, a ridge pattern building across the mid/srn Plains will also turn ewd going into Fri.
649 AM CDT Thu Apr 6 2017 An upper level ridge will provide quiet weather and VFR conditions to North and Central TX for the next 24 to 36 hours. /ISSUED 304 AM CDT Thu Apr 6 2017/ Not many changes to the latest forecast as we will remain in a tranquil period through the weekend thanks to upper level ridging.
Maliawco A large upper-level ridge of high pressure will bring warm spring-like weather to northeast Montana over the next few days. Granted, the southwest flow aloft just upstream of this ridge will introduce some scattered rain showers and maybe a few isolated thunderstorms over central portions of Montana, but are only expected to brush up against or clip our CWA western and northwestern zones. By Friday night, the surface pressure trough will finally push through the area and bring better chances for rain showers and a few thunderstorms to the area. A cold front is expected Friday evening which has enough instability and moisture with it that there could be some showers and possibly thunderstorms with it.
The cold front that is trailing the line of convection will be pushing through the local area through mid afternoon, and is expected to be along or just south of the Straits this evening. It is uncertain if MVFR stratocumulus will develop overnight due to weak cold air advection behind the passing cold front.