Aikyam-Lab/Synoptic-Bench huggingface dataset:
231 PM CDT Sun Sep 1 2024 An upper low will continue to spin near the Louisiana/Texas coast this afternoon into the evening. Additionally, a weak frontal boundary associated with a weak upper trough propagating eastwards across the OH/TN River Valleys will increase moisture ahead of the front this afternoon across northern MS. This will allow for scattered showers across the northern portions of the CWA, with the highest potential along and north of Hwy 82. By Monday, we will be impacted less by the low pressure near the Texas coast and more influenced by the "drier" airmass moving in from the north. Temperatures will be a little higher, with highs in the lower to middle 90s and cloud cover becoming partly cloudy to mostly sunny.
1213 PM CDT Sun Sep 1 2024 - An additional frontal passage this evening ushers in a cooler and drier airmass for the week ahead.
1027 AM PDT Sun Sep 1 2024 The Labor Day weekend will feature much warmer than average temperatures with most of the Inland Northwest exceeding 90 degrees Sunday and Monday.
A deep low pressure system and associated upper level trough approaches the area. That said, moisture increases will be generally very minor with nothing but dry air visible on satellite for the low to pull inland.
1230 PM CDT Sun Sep 1 2024 - A cold front will pass through the region today, ushering in seasonably cool and less humid air. The cold front is making its way across the forecast area this morning. Satellite imagery shows that those areas are on the northern periphery of the cloud shield associated with the slow moving cold front now positioned near the Ohio River Valley. The main weather highlight for today is the passage of a cold front. High temps will generally be in the upper 70s/low 80s, although they could climb into the upper 80s south of I-70 where the cold front is slower to arrive.
121 PM EDT Sun Sep 1 2024 - Cooling Trend Through Labor Day - Dry into Mid Week then Chance for Rain Late in the Week - Moderating Trend in Temperatures Through the Week - Cooling Trend Through Labor Day In this cooler and drier weather pattern, the main weather-related hazard will be dangerous waves and currents on Lake Michigan today. The base of a synoptic upper-level trough is passing through the northern Great Lakes this morning. A surface cold front with a distinct wind shift can be tracked northwest to southeast through Lower Michigan this morning. 850 mb temperatures will drop several degrees C through the day, and full mixing from surface to 850 would support highs in the lower 70s in central MI and mid-upper 70s in southern MI, on the cooler side of normal for Sept 1.
1141 AM CDT Sun Sep 1 2024 (Today through Monday afternoon) The weak cold front has finally moved through the area with most locations showing light north to northeasterly winds. Models are showing a weak 500 mb trough lingering over the area that combined with afternoon heating will help cause another round of showers and thunderstorms to develop this afternoon with the highest rain chances south of I-10 and decreasing farther north.
110 PM CDT Sun Sep 1 2024 A weak cold front is drifting south into the region this morning as a weak mid level trough moves through. A cold front will move through the Midsouth today accompanied by a final round of showers and thunderstorms.
341 PM EDT Sun Sep 1 2024 A cold front is pushing a broken line of showers through the region this evening from northwest to southeast. The front will usher in a cooler and drier airmass for the start of the week. A cold front is moving through the region from northwest to southeast this evening, bringing a broken line of showers with it. Behind the cold front, temperatures will quickly drop and they should be in the upper 40s and 50s by daybreak. A beautiful stretch of weather is expected for the mid-week timeframe as high pressure at the surface and a building ridge aloft will dominate with clear skies, abundant daytime sunshine, and no precipitation.
206 PM MDT Sun Sep 1 2024 Hot and dry weather will continue through tomorrow, courtesy of strong upper level ridge, which is advecting warmer air from the southwest as it drifts slowly eastward. Tonight will be milder with lows in the 50s & 60s, then most of the region will reach the 90s Monday as 700mb temps warm to near +15C ahead of a Pacific cold front. The exception is over the Gallatin NF where mixed SW winds will begin to increase (gusts 15-25 mph) ahead of a slowly advancing Pacific trof. Increasing synoptic scale ascent from the aforementioned Pacific trof will bring a slight chance of showers to our west late Monday night.
Despite the lack of precipitation, temperatures have cooled down into the lower to mid 80s but dew points remain in the mid to upper 70s. A weak trough will linger near the Keys coastal waters overnight and Monday resulting in unsettled weather along with moderate southeast breezes.
Latest surface analysis shows a cold front stretching from the Ohio Valley back through southern Missouri. Mid-level dry air is already beginning to filter into the Lower Mississippi Valley. CJC A cold front will sweep through the region tonight marking a return of dry and less humid conditions to start the week.
716 PM EDT Sun Sep 1 2024 Scattered showers and thunderstorms this evening, mainly across northern SC as a trough moves into the area.
Issued 900 PM CDT Sun Sep 1 2024 Forecast remains on track with high pressure pushing in and strengthening overnight with light north winds gradually becoming light and more variable.
653 PM CDT Sun Sep 1 2024 Updated aviation portion for 00Z TAF issuance - Dry weather and near to slightly below average temperatures will prevail through mid-week due to Canadian high pressure.
621 PM CDT Sun Sep 1 2024 A cold front will sweep through the region tonight marking a return of dry and less humid conditions to start the week.
644 PM CDT Sun Sep 1 2024 An upper low will continue to spin near the Louisiana/Texas coast this afternoon into the evening. Additionally, a weak frontal boundary associated with a weak upper trough propagating eastwards across the OH/TN River Valleys will increase moisture ahead of the front this afternoon across northern MS. This will allow for scattered showers across the northern portions of the CWA, with the highest potential along and north of Hwy 82. By Monday, we will be impacted less by the low pressure near the Texas coast and more influenced by the "drier" airmass moving in from the north. Temperatures will be a little higher, with highs in the lower to middle 90s and cloud cover becoming partly cloudy to mostly sunny.
Current temperatures outside of rain-cooled areas near 80 to the lower 80s with rain-cooled areas mostly in the middle to upper 70s.
705 PM EDT Sun Sep 1 2024 * Cooler temperatures, compared to the recent heat wave, expected this week. A reinforcing shot of still cooler conditions possible this weekend.
607 PM CDT Sun Sep 1 2024 - Dry and cool conditions expected the next few days with Canadian high pressure in control.
934 PM EDT Sun Sep 1 2024 A cold front will move through quickly tonight with high pressure building slowly into the area Monday.
713 PM EDT Sun Sep 1 2024 A cold front moves across the area later tonight.
527 PM CDT Sun Sep 1 2024 - A refreshing cooler airmass with lower humidity is in store for Labor Day. The early morning hours will start off a bit breezy with a few wind gusts between 20-25 mph as a secondary cold front moves across the region.
935 PM CDT Sun Sep 1 2024 - A cold front located just south of I-70 may bring a stray shower across far eastern IL as the front moves through this afternoon (10% chance). Auten A cold front is still traveling across the CWA this morning. Highs behind the front in the low 80s and ahead of the front in the upper 80s, with low humidity.
631 PM CDT Sun Sep 1 2024 - A cold front located just south of I-70 may bring a stray shower across far eastern IL as the front moves through this afternoon (10% chance). A cold front is still traveling across the CWA this morning. Highs behind the front in the low 80s and ahead of the front in the upper 80s, with low humidity.
Expect this higher threat for showers/storms to continue thru tonight as well, though there could be a lull or two in activity. Winds 10-15 kts remain generally southeasterly through Tue, then become more shifty between SE/E Wed and Thu as high pressure to the north builds offshore the eastern seaboard.
624 PM EDT Sun Sep 1 2024 * Cooler temperatures and low humidity can be expected today through the middle of the week. Stretch of dry and stable conditions will exist to finish the holiday weekend, as high pressure settles over the region. * None A surface cold front has now cleared southeast Michigan. The amplified northern stream trough and associated mid level height falls now driving the cold front south of the region will advance across eastern Canada on Monday. Broad mid level ridging will expand across the Great Lakes region in its wake. A corresponding strong low level anticyclone will build into Lower Mi on Monday, then gradually depart to the East Coast by Midweek.
Pattern Synopsis/Pattern Forecast: Most obvious feature of interest on regional analysis early this afternoon is sprawling area of Canada originated high pressure steadily building southeast into the Upper Mississippi Valley and western Great Lakes. Gusty northwest winds in-between this high and now well departed cold front ushering in a much cooler airmass across the Northwoods. High pressure will only further build into our area to end this Holiday Weekend, continuing the dry and cool conditions. High pressure will center right across Michigan on Labor Day, resulting in mostly sunny skies (perhaps again some shallow diurnally-driven cumulus).
835 PM CDT Sun Sep 1 2024 Cyclonic flow around a broad upper level trough is pushing scattered showers and an occasional thunderstorm westward across the forecast area this evening.
929 PM EDT Sun Sep 1 2024 A cold front will bring thunderstorms this afternoon and evening, then lead in a cooler and less humid air mass by Monday night.
/EC/ An upper low will continue to spin near the Louisiana/Texas coast this afternoon into the evening. Additionally, a weak frontal boundary associated with a weak upper trough propagating eastwards across the OH/TN River Valleys will increase moisture ahead of the front this afternoon across northern MS. This will allow for scattered showers across the northern portions of the CWA, with the highest potential along and north of Hwy 82. By Monday, we will be impacted less by the low pressure near the Texas coast and more influenced by the "drier" airmass moving in from the north. Temperatures will be a little higher, with highs in the lower to middle 90s and cloud cover becoming partly cloudy to mostly sunny.
828 PM EDT Sun Sep 1 2024 * Cooler temperatures, compared to the recent heat wave, expected this week. A reinforcing shot of still cooler conditions possible this weekend.
938 PM EDT Sun Sep 1 2024 A cold front moves across the area later tonight.
Clouds, rain, and a reinforcing surge of cooler air will keep temperatures in the 70s today, a welcome reminder that fall is just a few weeks away. The upper low bringing the rain today will remain in the area tomorrow giving many locations another good chance at making up this year's rainfall deficit.
Convection has weakened, with lingering showers near the pre- frontal trough from near Sparta to Macon to Columbus. Earlier mid level clouds have eroded and convection has started to develop along the pre frontal trough.
A trough approaching the region from the west today will cause some thunderstorms today and tomorrow. Tuesday the trough arrives over the region and convective showers continue.
High temperatures are expected to be in the mid-90 and overnight lows in the lower 70s with some areas reaching the upper 60s.
134 AM EDT Mon Sep 2 2024 A cold front is pushing a broken line of showers through the region this evening from northwest to southeast. The front will usher in a cooler and drier airmass for the start of the week. A cold front is moving through the region from northwest to southeast this evening, bringing a broken line of showers with it. Behind the cold front, temperatures will quickly drop and they should be in the upper 40s and 50s by daybreak.
Highs today look to range from the low to mid 90s east of the Divide and mid 80s west of the Divide. Tuesday will see a cold front move through the state bringing with it cooler and wetter conditions.
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.
343 AM CDT Mon Sep 2 2024 -Slightly cooler weather expected today.
The cloud cover will help keep high temperatures in the low to mid 90s this afternoon, and in the upper 80s to low 90s Tuesday afternoon. With the slightly cooler temperatures and anticipated rainfall, heat indices may briefly hit 108-110 this afternoon, before quickly falling below 105.
* Cool/below normal temps next couple days, then a few degrees warmer through mid-late week, then cooler again.
307 AM EDT Mon Sep 2 2024 Drier and cooler conditions will settle into the area through midweek before warmer air builds back in late week.
(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.
1147 PM EDT Sun Sep 1 2024 * Cooler temperatures and low humidity can be expected today through the middle of the week. Stretch of dry and stable conditions will exist to finish the holiday weekend, as high pressure settles over the region. * None A surface cold front has now cleared southeast Michigan. The amplified northern stream trough and associated mid level height falls now driving the cold front south of the region will advance across eastern Canada on Monday. Broad mid level ridging will expand across the Great Lakes region in its wake. A corresponding strong low level anticyclone will build into Lower Mi on Monday, then gradually depart to the East Coast by Midweek.
A trough moving through northern California will bring slightly cooler temperatures to the region today, with less than a 30 percent chance of maximum temperatures above 100 degrees.
334 AM EDT Mon Sep 2 2024 - Relatively cool and comfortable, mostly sunny Labor Day - Warm mid-week period then a late week cool down with showers - Relatively cool and comfortable, mostly sunny Labor Day Upper-level ridging and sprawling high pressure over the Great Lakes today into Tuesday will provide tranquil weather. A few daytime cumulus clouds may develop, and good mixing to 850 mb where temperatures are around 7 C should yield highs in the lower 70s today, several degrees cooler than normal. Tuesday will be a few degrees warmer as a southerly component to the wind commences with the center of high pressure moving east of the area.
231 AM EDT Mon Sep 2 2024 A moisture starved reinforcing cold front brings much lower humidity today.
- Return of cooler and unsettled conditions this upcoming weekend. Large area of strong high pressure is centered from the Northern Plains thru the Upper Mississippi Valley into the Western Great Lakes region early this morning. Pattern Synopsis / Forecast: Currently ongoing troughing regime expected to be forced eastward as ridging over the Plains is forced eastward by a trough in the Pacific Northwest. A strong trough then moves into the Great Lakes later in the week, suppressing the ridge and bringing back cooler temperatures and rain chances to end the week.
1040 PM CDT Sun Sep 1 2024 Updated aviation portion for 06Z TAF issuance - Dry weather and near to slightly below average temperatures will prevail through mid-week due to Canadian high pressure.
A flattening 500mb ridge will move east over the Northern Plains starting tomorrow. There is pretty strong warm advection, so Labor Day will be warmer than today. Ridging over the area on Tuesday will bring the warmest temperatures of the week. A tight pressure gradient between the departing high pressure over the Great Lakes and a low over the Canadian Rockies on Tuesday will cause breezy southerly winds, with gusts up to 35 mph.
Skies are partly cloudy along the island chain, with temperatures hovering in the lower to mid 80s, and winds from the southeast to south at 10 to 15 mph. Surface analysis depicts a weak trough over the southeastern Gulf, with the subtropical high extending from the western Atlantic to just east of the Florida peninsula. Aloft, a very weak trough, now disintegrating into a shear axis, extends north-south along the east coast of Florida across the eastern Straits and central Cuba, with a mid/upper level ridge centered over the western Gulf.
223 AM EDT Mon Sep 2 2024 A cold front drifts across the area on Monday, bringing scattered afternoon and early evening showers and thunderstorms. Temperatures fall below normal by mid week with cool high pressure moving in. As of 200 AM: Upper trough axis has moved across most of TN and should cross the mountains before daybreak; cold front trails by a couple hundred miles.
Our warmest days will likely be today and Tuesday featuring highs in the low 80s to low 90s.
/Issued 1222 AM CDT Mon Sep 2 2024/ /Through Tuesday/ A 250mb trough will work its way slowly east from the Southern Rockies into the Southern Plains over the next 48 hours, while a weak, positive tilt 500mb trough lingers over the Big Country and western North Texas. At the surface, another weak cold front will ease south across the Red River into North Texas during the day Monday, eventually reaching Central Texas Monday night or Tuesday. For the rest of tonight, activity should remain fairly isolated in nature, but may become clustered across the west-most counties near the mid level trough axis. This should help mitigate the flood potential despite the high rain rates seen in some of the showers/storms.
Tuesday will likely be hot as well with convective initiation limited by drier air and residual ridging keep areas capped until the afternoon hours.
There is a 60-70% chance that the highs will be less than 75 degrees north of Dodge City. During the first half of the week, ensembles were in good agreement that an upper level trough would spread mid to high clouds into south central and parts of southwest Kansas on Monday and Tuesday as it moves from Texas into Oklahoma and eastern Kansas.
Expiration time of 13z reflects anticipated early end to the lowest visibility, though some reductions may linger a couple of hours beyond that. Clouds will also keep temps a few degrees cooler today and with lower humidity.
An U/L ridge of high pressure will gradually build over the Florida peninsula during the next several days with increasing large scale subsidence across the region. Late in the week, a deep trough is expected to dig from the Great Lakes to the Lower Mississippi Valley.
1120 PM CDT Sun Sep 1 2024 Cyclonic flow around a broad upper level trough is pushing scattered showers and an occasional thunderstorm westward across the forecast area this evening. The entire feature is expected to be pushed south tomorrow by a building ridge over the southern plains taking some of the very saturated airmass with it. The combination of relatively drier air and lower PoPs will allow afternoon highs to climb into the lower 90s area wide with a few mid 90s interspersed. Similar conditions expected on Tuesday, but as the ridge begins to retreat off to the Northeast, increasing moisture is expected to support isolated to scattered convection Tuesday afternoon into Tuesday night.
This afternoon, we find ourselves amongst building high pressure and northwest flow, leading to some cumulus fields and lingering gusty winds. Temperatures slowly warm into mid week with ridging.
with the higher dewpoints closer to the Red River late tonight/early morning. the drier air will aid low temps in the low/mid 60s to be common.
Due to a cold front moving through, dew points are forecast to be in the 60s which will keep heat indices below 100 degrees.
1140 PM CDT Sun Sep 1 2024 - A cold front located just south of I-70 may bring a stray shower across far eastern IL as the front moves through this afternoon (10% chance). Auten A cold front is still traveling across the CWA this morning. Highs behind the front in the low 80s and ahead of the front in the upper 80s, with low humidity.
1054 PM CDT Sun Sep 1 2024 - Dry and cool conditions expected the next few days with Canadian high pressure in control.
1242 AM CDT Mon Sep 2 2024 (This evening through Tuesday) To begin the period, a cold front is situated across northern Arkansas and will continue to push south as we go through the rest of today.
As one should expect with a blocking pattern featuring a weak upper-level low, there is great uncertainty regarding the speed and track of the low. Some guidance suggests showers associated with the low may move into the far southern Texas Panhandle, continuing and spreading east through the night. it is worth noting that the 15z RAP is initializing best with respect to the low's position, and it also turns out to be one of the wetter guidance. However, with the seemingly unpredictable nature of cut-off lows, not confident that it will handle the track and speed correctly through the next 48 hours.
High temperatures will generally range from the upper 80s along the east coast to the lower 90s across interior portions of Southwest Florida.
330 AM EDT Mon Sep 2 2024 A much cooler and drier air mass will build in today in wake of a cold front passage. Dry conditions will persist through the work week with high pressure in place. The main cold front has cleared the entire area.
411 AM EDT Mon Sep 2 2024 Cooler and drier conditions will prevail on Monday, with fall- like temperatures prevailing. High pressure will bring mostly sunny weather and slowly warming temperatures through much of the week.
204 AM CDT Mon Sep 2 2024 - Canadian high pressure will bring pleasant weather to the region today and Tuesday.
A slow moving cold front is progressing southeastward across our area this morning with fog already dissipated at CKV as top of hour approaches. Lows tonight will really reflect passage of this surface cold front as low level atmospheric ridging influences from our north bring in enough of a cooler airmass to support lows tonight spanning mid 50s to lower 60s.
348 AM CDT Mon Sep 2 2024 - Much warmer temperatures are expected today and Tuesday with widespread highs back into the 80s and 90s.
331 AM EDT Mon Sep 2 2024 High pressure dominates through mid week. Next cold front arrives at the end of the week. High pressure drifts towards the southern Great Lakes from the upper Mississippi Valley with northerly flow continuing across the CWA. Weak low pressure trough will set up over Lake Erie tonight into Tuesday without much fanfare to the sensible weather except for some wind direction changes making them highly variable over and in the vicinity of Lake Erie.
1217 AM EDT Mon Sep 2 2024 A cold front will move through quickly tonight with high pressure building slowly into the area Monday.
Currently, there is an upper level low just off the northern coast of California with moisture streaming ahead of the low over eastern Oregon and western Idaho.
633 AM 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.