Aikyam-Lab/Synoptic-Bench huggingface dataset:
2) Cooler temperatures with scattered to widespread rain showers expected throughout the day tomorrow. A deepening low pressure system can be seen on WV spinning across SE Idaho this afternoon. Ahead of the low pressure system SW flow is advecting a deep plume of moisture into southern Wyoming. As the low pressure system continues to push east, there may be a brief lull in the precipitation as a dry slot is beginning to wrap into the eastern periphery of the low pressure. Expecting an increase in rain activity throughout the day on Saturday and with the overcast skies and cooler temperatures it is going to look like fall. Cold air advects into the region which may lower temperatures enough across the higher elevations of the Snowy and Sierra Madre Mountains where some accumulation of snow may be possible.
257 PM CDT Fri Sep 30 2022 Tonight and Tomorrow: Continued dry and fair weather is expected through tomorrow as high pressure remains in control. As the wind diminishes, dry air and clear skies will allow for effective radiational cooling and we continue to blend toward the cooler half of the model guidance ensemble.
Huston An upper low centered along the Continental Divide between Idaho and Montana will shift to the south throughout the day and move over SE Idaho by later this evening. This low will bring clouds, showers/storms and noticeably cooler temperatures to region today. Temperatures will only top out in the 50s and 60s today and tomorrow so certainly much cooler than earlier this week. Could even see a few rumbles of thunder across the high country as well today. The low will move slowly over the next few days and looks to rotate north on Saturday closer towards Yellowstone. This will lead to another day of showery conditions, mainly across the northeastern portion of the forecast area, while also keeping things cooler for the rest of eastern Idaho.
A large closed low centered over eastern Idaho this morning will drift eastward today.
227 PM MDT Fri Sep 30 2022 Large-scale upper divergence is occurring across south-central Montana, and alongside the moisture brought in from the upper low currently located in SW Montana and bringing widespread rain to the area. However, the show won't be done as another surge of moisture will be brought in overnight and through tomorrow, and with little movement of the upper low, upper divergence will continue to bring ample ascent across the area to keep the rain coming. But it's not all just rain, as the elevations above 9000 ft continue to cool off this afternoon, it will change to snow, and upwards of 10 inches of snow is expected on the higher peaks, with 2-5 inches on the Beartooth Highway, hence will be continuing its Winter Weather Advisory.
Overnight low temperatures will drop down into the mid to upper 50s for inland areas and in the lower to mid 60s for north central Florida and for areas along the coastline.
Temperatures were warmer across the interior this afternoon compared to yesterday at 2 pm. The greatest 24hr increase occurred over the higher elevations, up to 17 degrees warmer. Most coastal sites were running cooler thanks to a shallow marine air mass and stubborn low clouds and fog.
621 PM CDT Fri Sep 30 2022 Latest UA analysis and WV imagery shows ridging over the central CONUS wedged between Hurricane Ian on the east coast and low pressure over Idaho, with a large swath of drier air wrapping around the backside of Ian and extending west into LA and TX. At the surface, an elongated ridge of high pressure extends from the Great Lakes region southwestward toward the NW Gulf coast. The combination of dry northerly flow aloft and surface ridging was producing pleasant fall weather across the region with blue skies, mild temperatures (around 80) and low relative humidities (between 25 and 35 percent). Temperatures will run a little cooler than normal, moreso during the overnight periods as the drier airmass will allow for efficient cooling.
Today has been a pleasant Florida fall day with lower humidity and afternoon temperatures in the low to mid 80s.
A slow moving upper low will produce periods of rain and seasonally cool temperatures through Saturday.
638 PM CDT Fri Sep 30 2022 Tonight and Tomorrow: Continued dry and fair weather is expected through tomorrow as high pressure remains in control. As the wind diminishes, dry air and clear skies will allow for effective radiational cooling and we continue to blend toward the cooler half of the model guidance ensemble.
549 PM CDT Fri Sep 30 2022 (Tonight through Saturday night) Mid-level ridging and high pressure will keep halcyon conditions in play through the short term.
630 PM CDT Fri Sep 30 2022 (This evening through Saturday night) From a meteorology standpoint, we are still between a trough to the east and a ridge to the west. The cool night time temperatures we've been seeing will continue for the next two nights (lows in the low to mid 60s along the Southshore and LA coast, and low to mid 50s elsewhere). The sky will be clear and humidity will continue to be very low, indicated by Precipitable Water values in the lowest 10 percent statistically, giving us essentially no chances for rain.
546 PM MDT Fri Sep 30 2022 Closed upper low over the northern Rockies will slowly migrate east the next few days, supporting increasing chances for rain and cooler temps. Sfc cool front continues to slowly shift east across the high plains with mid-level monsoon moisture spreading NE. First impulse rotating along the east side of the upper trough will shift east and allow for increasing moisture and lift aloft, supporting increasing chances for showers and a few storms this evening.
Temperatures today topped out in the lower 80s, and dewpoint temperatures have dropped to near 70, and are expected to drop below 70 overnight, something usually reserved for mid to late October.
Upper low in eastern Idaho is circulating moisture back into central Idaho, and an area of showers and isolated thunderstorms formed late today in Camas County and eastern Elmore County.
601 PM CDT Fri Sep 30 2022 (This evening through Saturday) An upper level low will continue to churn around Jackson, Wyoming through Saturday afternoon. An upper low over northern Sonora will also remain nearly stationary through Saturday afternoon but will have little to no effect on our weather locally.
(This evening through Saturday night) From a meteorology standpoint, we are still between a trough to the east and a ridge to the west. The cool night time temperatures we've been seeing will continue for the next two nights (lows in the low to mid 60s along the Southshore and LA coast, and low to mid 50s elsewhere). The sky will be clear and humidity will continue to be very low, indicated by Precipitable Water values in the lowest 10 percent statistically, giving us essentially no chances for rain.
703 PM CDT Fri Sep 30 2022 (Tonight through Saturday night) High pressure will dominate the short term period. This will lead to Saturday's morning low temperatures cooler than this morning across central and eastern areas.
A low pressure system was located over the western states on Friday, centered over Idaho.
819 PM MDT Fri Sep 30 2022 A slow moving upper low will produce periods of rain and seasonally cool temperatures through Saturday.
Although upper level flow is turning more southwesterly today, as upper trof digs southward.
303 PM EDT Sun Sep 15 2019 Weak low pressure will slide east out of the Great Lakes bringing clouds and showers to the area late this afternoon into the overnight hours. High pressure will build back into the region on Monday returning dry weather. High pressure and drier air begin a push south and a dry northeast flow develops Monday. Expect cool and dry weather Monday night under high pressure.
304 PM CDT Sun Sep 15 2019 An upper low over the mid/west Gulf of Mexico will continue to move off to the west through the early part of the workweek. Otherwise, mid/upper level ridging will prevail across the Gulf States during the week with temperatures continuing to run above normal and rain chances below normal. This ridging may weaken somewhat over the weekend allowing for slightly less hot temperatures. Scattered to numerous showers and a few thunderstorms in association with an upper low over the mid/west Gulf will continue to impact the coastal waters into Monday.
120 PM EDT Sun Sep 15 2019 High pressure at the surface and aloft will bring clear skies and light winds through the afternoon and into tonight.
317 PM CDT Sun Sep 15 2019 It will be a warmer night across the area with a southerly flow and an upper level ridge situated over the region.
325 PM EDT Sun Sep 15 2019 Showers will be possible Monday as a weak cold front and an upper level disturbance cross the region. However, a few isolated showers and storms are forecasted to form as a weak cold front crosses Central Ohio Monday afternoon.
304 PM EDT Sun Sep 15 2019 Synopsis/Discussion/Marine - A few lingering showers and patchy drizzle tonight - Above to much above normal temperatures this week - Fair weather most of the week A few light rain showers and patchy drizzle will linger tonight due to extensive lingering low level moisture and as a mid level trough moves through early Monday morning. Fair wx is forecast Monday through mid to late week as an upper level ridge will gradually build in and amplify over the Great Lakes region. With some instability around to start the forecast period and a wave of low pressure moving in from the west.
High pressure continues to dominate much of the Ohio and Tennessee valley this afternoon while water vapor imagery depicts a disturbance moving out of the Midwest with increased low to mid layer moisture. The lower relative humidity values this afternoon could lead to an increased fire danger through this evening which is highlighted in the FWF. Overall pattern remains the same from the previous forecast during the extended with longwave ridge pattern remaining across the Central and Eastern CONUS resulting in generally dry weather, mostly clear conditions, and above normal temperatures.
249 PM CDT Sun Sep 15 2019 Considerable mid-level ridging is forecast over the next 24 hr from the mid MS Valley into central Canada, downstream from a longer wavelength trough moving onto the West Coast.
Temperatures are heating into the low to mid 80s and should easily reach the low to mid 90s this afternoon. High pressure continues to dominant the mid-south.
247 PM EDT Sun Sep 15 2019 Showers will be possible Monday as a weak cold front and an upper level disturbance cross the region. However, a few isolated showers and storms are forecasted to form as a weak cold front crosses Central Ohio Monday afternoon.
339 PM EDT Sun Sep 15 2019 Low pressure over the northern Maritimes will slowly move east to the open north Atlantic by Monday night.
314 PM CDT Sun Sep 15 2019 There is little change to the overall forecast, as the medium- range models continue to show an approaching mid/upper-level trough late this week, along with increasing moisture from the south.
208 PM CDT Sun Sep 15 2019 Quiet weather is expected to continue for this period with an upper level ridge axis moving east through the region. Well above normal temperatures will continue with highs in the low/mid 90s. A strong upper level ridge will keep the area dry for several more days with well above normal temperatures. A weakening sfc front tries to edge into northern MO/northeast KS by Thu morning but it withers underneath the ridging aloft.
304 PM EDT Sun Sep 15 2019 A ridge of high pressure over Pennsylvania will slide east to the Mid Atlantic Piedmont tonight. Clouds will increase across the state late today and tonight as an area of low pressure and its preceding warm front moves out of the midwest and crosses Pennsylvania Monday night.
244 PM CDT Sun Sep 15 2019 H5 ridging continues building into the region this afternoon with mostly clear skies observed across much of area. We should see temperatures reach the lower 80s this afternoon with lows tonight falling into the upper 50s to lower 60s.
354 PM EDT Sun Sep 15 2019 A ridge of high pressure over Pennsylvania will slide east to the Mid Atlantic Piedmont tonight. Clouds will increase across the state late today and tonight as an area of low pressure and its preceding warm front moves out of the midwest and crosses Pennsylvania Monday night.
203 PM CDT Sun Sep 15 2019 A broad, upper ridge is over the southeast conus and southern plains leaving the CWA under mostly southwest flow aloft. There is a possibility of isolated thunderstorms this afternoon and evening from far western Eddy County southward toward the Van Horn area from an upper low passing over Arizona and New Mexico. An upper trough will begin digging southward over the west coast on Monday as the upper ridge over the southeast becomes more amplified. The upper trough moves eastward then lifts to the northeast as another upper trough moves over the Pacific Northwest. This next upper trough digs further south than the previous one and will result in increased chances of rain/storms for West Texas and southeast New Mexico beginning mid to late week.
High pressure continues to move over the Northern Rockies today, allowing for another nice clear day with above normal temperatures. We continue to watch a slow moving cold front that will bring scattered rain showers and isolated thunderstorms, along with breezy southwesterly winds to the Northern Rockies tomorrow afternoon and evening. Areas west will see cooler temperatures due to extensive cloud cover and scattered rainshowers. At this time north-central Idaho, west- central and southwest Montana will see the more persistent rainfall as a low pressure system develops behind the cold front, and moves to the northeast.
The Keys are positioned between Humberto the the north, high pressure over Cuba, and low pressure over the central Gulf. In this configuration, our area is mostly under the influence of the ridge over Cuba, with diffluent lower tropospheric flow throughout the Keys Coastal Waters. Through Monday, the ridge over Cuba disintegrates and we begin to fall under the synoptic scale envelope surrounding Humberto.
527 PM MDT Sun Sep 15 2019 The latest upper air analysis shows deep upper trough just off the west coast. In response to this digging trough, a robust ridge continues to build across the intermountain west. A weak upper trough currently centered over eastern Arizona and western New Mexico will slowly meander northeastward over the next few days.
H5 ridging continues building into the region this afternoon with mostly clear skies observed across much of area. We should see temperatures reach the lower 80s this afternoon with lows tonight falling into the upper 50s to lower 60s.
844 PM EDT Sun Sep 15 2019 High pressure will build to our north through Monday. Meanwhile a weak warm front will approach from the Midwest.
746 PM EDT Sun Sep 15 2019 High pressure in control tonight. Mainly dry cold front crosses Monday. High pressure and upper ridge dominate latter half of the week. These clouds were associated with a mid-level disturbance and weak cold front which were pushing toward the region. The disturbance and cold front are expected to push east across the area on Monday. Models indicate high pressure, at the surface and aloft, will build back into the region through the period.
1049 PM EDT Sun Sep 15 2019 A weak cold front will push southeast across the region tonight through Monday, possibly leading to an isolated shower. High pressure will then build back into the region through the rest of the week, leading to dry conditions and a continuation of above normal temperatures. Expect overnight lows generally in the lower to mid 60s, with some readings near 60 in the far southeast. Highs on Monday will range from the low 80s in the north to the upper 80s/near 90 across the far south. Lows Monday night will be in the low to mid 60s.
609 PM EDT Sun Sep 15 2019 A weak cold front will sink south through the region late tonight and Monday. High pressure will return to the area Monday night through the rest of the week. Another cold front will move into the region by the weekend.
/Issued 314 PM CDT Sun Sep 15 2019/ High pressure aloft centered overhead with area 12z RAOB data sampling mid level heights near seasonal extremes. Upper low currently over the western Gulf of Mexico will make very slow west and eventually northward progress around periphery of upper ridge.
Gusty to breezy wind noted across the Lower Treasure Valley and into the Baker County area this evening. Otherwise, forecast remains on track with the approaching trough and cold front over the next couple days. Cooler temperatures and some showers and thunderstorms anticipated with this upcoming pattern change. Mid to high clouds will increase with approaching cold front. Cold front is moving east over Oregon and will reach a KBKE-KBNO line by late Monday morning.
747 PM EDT Sun Sep 15 2019 Weak low pressure will slide east out of the Great Lakes bringing clouds and showers to the area late this afternoon into the overnight hours. High pressure will build back into the region on Monday returning dry weather. High pressure and drier air begin a push south and a dry northeast flow develops Monday. Expect cool and dry weather Monday night under high pressure.
Went ahead and cancelled the high rip current risk as it was set to expire at 11PM ET. Otherwise, dry conditions over land continue overnight with light winds and lows in the lower 70s.
842 PM EDT Sun Sep 15 2019 Showers will be possible Monday as a weak cold front and an upper level disturbance cross the region. Mostly dry conditions are expected to prevail as high pressure remains over northern West Virginia. However, a few isolated showers and storms are forecasted to form as a weak cold front crosses Central Ohio Monday afternoon.
829 PM EDT Sun Sep 15 2019 A weak cold front will push southeast across the region tonight through Monday, possibly leading to an isolated shower. High pressure will then build back into the region through the rest of the week, leading to dry conditions and a continuation of above normal temperatures. In northwest flow aloft, some weak mid level energy will drop down into the area through the overnight hours along with an associated weak cold front. Lows tonight will be in the low to mid 60s. Highs on Monday will range from the low 80s in the north to the upper 80s/near 90 across the far south. Lows Monday night will be in the low to mid 60s.
aviation updated Slightly cooler temperatures are expected overnight tonight, mostly in the 40s and and 50s across the region.
/issued 245 PM CDT Sun Sep 15 2019/ Skies remain mostly sunny across the Mid-South this afternoon with temperatures in the low to mid 90s. An upper level ridge continues to cover much of the southern U. This ridge will start to expand northward and become more centered over the lower Mississippi Valley.
618 PM CDT Sun Sep 15 2019 Considerable mid-level ridging is forecast over the next 24 hr from the mid MS Valley into central Canada, downstream from a longer wavelength trough moving onto the West Coast.
/issued 203 PM CDT Sun Sep 15 2019/ A broad, upper ridge is over the southeast conus and southern plains leaving the CWA under mostly southwest flow aloft. There is a possibility of isolated thunderstorms this afternoon and evening from far western Eddy County southward toward the Van Horn area from an upper low passing over Arizona and New Mexico. An upper trough will begin digging southward over the west coast on Monday as the upper ridge over the southeast becomes more amplified. The upper trough moves eastward then lifts to the northeast as another upper trough moves over the Pacific Northwest. This next upper trough digs further south than the previous one and will result in increased chances of rain/storms for West Texas and southeast New Mexico beginning mid to late week.
607 PM CDT Sun Sep 15 2019 A deepening warm sector underneath a building ridge over the central CONUS will maintain hot and muggy conditions through the early to mid-week, with a slight improvement expected by the late week.
923 PM EDT Sun Sep 15 2019 A weak cold front will sink south through the region late tonight and Monday. High pressure will return to the area Monday night through the rest of the week. Another cold front will move into the region by the weekend.
939 PM CDT Sun Sep 15 2019 Warmer conditions have returned to the region and will persist through the short term. Byrd Upper level ridge will remain anchored over the region through at least mid week with highs 10 degrees above normal for this time of year.
510 PM EDT Sun Sep 15 2019 Marine - A few lingering showers and patchy drizzle tonight - Above to much above normal temperatures this week - Fair weather most of the week A few light rain showers and patchy drizzle will linger tonight due to extensive lingering low level moisture and as a mid level trough moves through early Monday morning. Fair wx is forecast Monday through mid to late week as an upper level ridge will gradually build in and amplify over the Great Lakes region. With some instability around to start the forecast period and a wave of low pressure moving in from the west.
Otherwise, ridging surface and aloft will keep convection suppressed with only scattered high clouds anticipated. Surface ridging will keep winds generally light, less than 10kts.
250 PM PDT Sun Sep 15 2019 Pattern change will lead to significantly cooler temperatures and a chance of showers and thunderstorms late this evening into Monday. An upper level low pressure system is approaching the West Coast this afternoon, bringing cooler temperatures to interior NorCal. High temperatures today will peak around 5 to 10 degrees cooler than yesterday with Valley temperatures in the mid to upper 80s and mountain temperatures in the 60s and 70s. Southwesterly winds will increase in advance of the trough.
628 PM CDT Sun Sep 15 2019 Warmer conditions have returned to the region and will persist through the short term. Byrd Upper level ridge will remain anchored over the region through at least mid week with highs 10 degrees above normal for this time of year.
1051 PM EDT Sun Sep 15 2019 High pressure will build to our north through Monday. Meanwhile a weak warm front will approach from the Midwest.
547 PM CDT Sun Sep 15 2019 Quiet weather is expected to continue for this period with an upper level ridge axis moving east through the region. Well above normal temperatures will continue with highs in the low/mid 90s. A strong upper level ridge will keep the area dry for several more days with well above normal temperatures. A weakening sfc front tries to edge into northern MO/northeast KS by Thu morning but it withers underneath the ridging aloft.
Normal highs for mid September are in the low to mid 80s, and the forecast highs are around 5 to 10 degrees above those numbers.
The only relief may be due to the thermal wind along with some influence from the lee trough over the region. With the lee trough forecast to remain influencing the area for the next few days, at least some southwesterly breeze will remain across the area.
635 PM CDT Sun Sep 15 2019 The axis of an upper ridge across the interior CONUS was migrating eastward today ahead of an upper trough moving into the Pacific Northwest.
648 PM CDT Sun Sep 15 2019 It will be a warmer night across the area with a southerly flow and an upper level ridge situated over the region.
1024 PM EDT Sun Sep 15 2019 High pressure in control tonight. Mainly dry cold front crosses Monday. High pressure and upper ridge dominate latter half of the week. These clouds were associated with a mid-level disturbance and weak cold front which were pushing toward the region. The disturbance and cold front are expected to push east across the area on Monday. Models indicate high pressure, at the surface and aloft, will build back into the region through the period.