Aikyam-Lab/Synoptic-Bench huggingface dataset:
1139 AM CST Sun Nov 26 2023 (Today through Monday Night) Scattered rain is moving NE across the area early this SUn morning ahead of a cold front. This cold front will push SE into the state by sunrise. with breezy NW winds ushering much drier and somewhat cooler air to the state for this afternoon.
1156 AM CST Sun Nov 26 2023 Light snow from I-72 north will diminish during this afternoon from the west as breezy west northwest winds develop behind a cold front.
1130 AM CST Sun Nov 26 2023 (Today through Monday) Much warmer this morning across the midstate than the past few mornings with current temperatures in the mid 30s to mid 40s thanks to light southeast winds. The warmer temps and light winds are occurring due to weak WAA ahead of an approaching upper trough axis that will bring light rain to the area today. After the rain exits Middle Tennessee this evening, a cold front will sweep through and usher in much colder and dry weather for Monday.
-Cooler temperatures move in briefly tonight and into Tue morning, with morning lows in the single digits.
137 PM EST Sun Nov 26 2023 High pressure slides eastward today. Showers arrive this afternoon and tonight with a cold front. A high pressure system will slide off to the east this morning as a cold front approaches the area. Showers in advance of the cold front will arrive in southeast Ohio, northeast Kentucky, and western West Virginia this afternoon. Some of the higher elevations of the northern West Virginia mountains could see a half inch of snow by daybreak Monday.
1133 AM CST Sun Nov 26 2023 (Today through Monday afternoon) A cold front is draped across parts of southeast New Mexico and the Permian Basin this morning. It will gradually push through to the south and drier, cooler air will move in over the course of today. Sunday evening and into Monday morning see temperatures drop near freezing for the Permian Basin, southeast New Mexico, and the higher elevations. Highs on Monday do not move up much from today, but winds do shift easterly to southeasterly and most spots reach into the low 50s.
Tonight through Monday night: The rest of the day today will feature the exiting of the bulk of the snowfall forced largely from the leading edge of the 500mb trough. This is largely due to the PVA from the backside of the 500mb trough. However models do suggest uncertainty in what we will actually see in terms of snowfall behind the sliver of dry air as the low level air will be gradually drying out. However, through the evening model soundings suggest low to midlevel moisture may linger just enough into the evening to bring some flurries for a period before the low levels dry out behind the front.
A cold front was just starting to cross the Tennessee River based on a wind shift and increase in gusts to 20 mph or so. At the surface, low pressure was centered over the Great Lakes, extending south into the Ohio Valley. For the rest of today and tonight, the cold front will move across Middle Tennessee, bringing breezy northwest winds this evening and cooling temperatures. Cold air advection should persist behind the cold front, leading to a cold day across the region with afternoon highs currently forecast in the low to mid 40s.
(This afternoon through Monday night) An Upper trough today extends from Ontario down along the MS River Valley as high pressure builds along the West Coast. As this trough moves east the ridge will move ashore being centered over OR Monday and continue to progress eastward Monday night. A cold front blew through the area this morning with a gusty north wind.
Forecast Details: Light snow will associated with the first upper trough will exit east of the area this afternoon, with a secondary area of snow showers associated with the second trough and cold front swinging across the area from west to east this afternoon and early evening. It will be a cold night with lows dropping to between 10 and 20 degrees for most of the area, with slightly warmer readings near the shores of Lake Michigan.
With the cold front having passed through earlier today we will be cool and windy for the rest of the day today. With the cold airmass moving in behind the cold front we will be under CAA through Monday night. As this cold air advects in we will see temperatures fall much below normal with highs in Monday only in the lower to mid 20s.
1157 AM CST Sun Nov 26 2023 - Light snow over western WI to end around sunrise, followed by another round of light snow across the entire area through the day today ahead of a cold frontal passage. - Strong northwest winds expected today behind the cold front, with gusts 30-40 mph likely through this evening.
200 PM CST Sun Nov 26 2023 - Cold air is moving in behind a cold front.
As 700mb flow becomes more westerly through the day, drier air will advect in from the west and northwest, followed by the passage of the surface cold front. Temperatures have actually warmed into the upper 50s across Central Mississippi ahead of the cold front.
(This evening through Monday) Surface ridging will not budge much through the overnight hours leading to light winds again and a relatively cold night. However, West Texas will still be under enough influence from the ridge, generating temperatures only slightly warmer than today.
1051 AM CST Sun Nov 26 2023 (Today and tonight) A cold front continues to work its way southward across the area this morning, with temperatures having dropped into the 30s and 40s behind the front. However, cold air advection will keep temperatures on the chilly side, with highs topping out only in the lower 50s.
Currently, strong northwest flow aloft with ridging over the west coast and a long wave trough over the Western Great Lakes region. Some weak WAA also expected west, where highs tomorrow will warm into the lower to mid 30s. Cold airmass remains east where highs in the lower 20s are forecast. Upper level ridging builds east into the Great Basin, then flattens mid-week as a northern stream S/WV trough develops south into southern Alberta/Saskatchewan.
1022 AM MST Sun Nov 26 2023 Key Messages: - Dry, quiet weather with slightly warmer temperatures today. Today will be the return of dry weather conditions across the area as well as slowly warming temperatures as the upper-level trough in our region departs to our east. Looking at today's high temperatures, this will be the start of a short warming trend into the start of the week, with highs over the plains in the high-30s to low-40s, while the valleys remain in the 30s.
Because of this, winds will be out of the northwest before shifting to the north as this approaching cold front brings in cooler and drier air across the southeast as we head into the overnight period. Overnight night lows will drop to below freezing with several areas south of Hwy 84 seeing lows in the mid 30s. Expect afternoon highs to peak in the low 50s.
Tonight, breezes will become light and variable by early evening as the Keys are situated in a col region between ridging in the Caribbean and an amplifying trough pushing east through the Ohio River Valley.
121 PM CST Sun Nov 26 2023 * Light rain and clouds will exit the region tonight as a cold front moves through the region.
(Rest of Today) Broad cyclonic flow aloft will persist across much of central/eastern North America today, downstream from a developing split flow block along the Pacific Coast and to the N/W of a subtropical ridge centered over the Greater Antilles. Embedded within this regime, a lead vort max will lift east-northeastward from western MO into eastern OH/western PA by 0Z ahead of a more amplified northern stream trough digging southeastward across the northern Plains/Upper MS Valley. Due to an abundance of low stratus clouds (that should begin to slowly lift/scatter later this afternoon), we have lowered the high temperature forecast to reflect u40s-l50s in the eastern portion of the CWFA and mid 50s in the west.
(Rest of today through Monday) South Florida sits in the warm sector behind a retreating warm front draped across Central Florida. A cold front advancing through the eastern United States will approach the region today into tonight before passing through southern Florida on Monday. As the cold front moves from northwest to southeast across the region, the wind will pick up and that will help dissipate the fog though some portions of inland Southeast Florida and Everglades National Park could see the fog linger into the early portions of the morning commute.
1040 AM MST Sun Nov 26 2023 Aviation Section Updated Quiet, if breezy, weather is expected over the next few days as upper level ridging builds in across the West Coast. Temperatures will gradually warm over the next few days, before cooler air works in for mid week. /ISSUED 430 AM MST Sun Nov 26 2023/ Quiet weather is expected through the middle of this week as upper level ridging to our west keeps dry northwesterly flow entrenched across the area.
Winds become NW-N 5-10 knots this afternoon into this evening following the passage of a cold front. NEAR TERM UPDATE Areas of mainly light rain have mostly shifted into south central AL and the western FL panhandle as of midday, while a few sprinkles of light rain are also occurring along the leading edge of a cold front now moving into southwest AL.
1115 AM CST Sun Nov 26 2023 (Today and tonight) Water vapor imagery currently shows the UL trough tracking from the central High Plains early this morning where it is expected to enter the Midwest region by this afternoon. We will begin to make the transition back into a dry and quiet pattern for the short term as we lose all jet flow dynamics with the exiting trough and zonal flow prevailing. The secondary cold front has made its way through the area as of 12 AM CST with north winds prevailing.
150 PM MST Sun Nov 26 2023 The Tri-State area will be situated on the western periphery of a broad upper trough (over the central/eastern CONUS). and the eastern periphery of an upper level ridge (over the western CONUS) throughout this time period.
1041 AM MST Sun Nov 26 2023 Aviation Section Updated Quiet, if breezy, weather is expected over the next few days as upper level ridging builds in across the West Coast. Temperatures will gradually warm over the next few days, before cooler air works in for mid week. /ISSUED 430 AM MST Sun Nov 26 2023/ Quiet weather is expected through the middle of this week as upper level ridging to our west keeps dry northwesterly flow entrenched across the area.
As a result, temperatures across the island chain are already in the lower 80s. Dewpoints remain in the lower to mid 70s reminding us that a tropical airmass remains.
516 PM CST Sun Nov 26 2023 (This evening through Monday) Surface ridging will not budge much through the overnight hours leading to light winds again and a relatively cold night. However, West Texas will still be under enough influence from the ridge, generating temperatures only slightly warmer than today.
339 PM CST Sun Nov 26 2023 Light snow showers will diminish over central IL late this afternoon and early evening, as brisk west to northwest winds usher in much colder air behind a cold front.
532 PM CST Sun Nov 26 2023 Key Messages: * Light snow tapers this afternoon into early evening from west to east with a chance (20-30 percent) for a few gusty snow showers to persist into the evening along/ahead of a cold front.
401 PM PST Sun Nov 26 2023 Persistent high pressure through the middle of the week will keep the region precipitation-free and stagnant with little variation in temperatures each day. Freezing fog and low clouds will be a daily concern as well. Through Monday night: High pressure will continue to strengthen into the Inland Northwest. This makes for a light wind and precipitation-free forecast, but also with stagnant conditions leading to nuisance freezing fog and periods of low clouds. Models haven't been doing terribly well with the low clouds and stratus, so are taking more of a persistence approach with the forecast.
249 PM PST Sun Nov 26 2023 Persistent high pressure through the middle of the week will keep the region precipitation-free and stagnant with little variation in temperatures each day. Freezing fog and low clouds will be a daily concern as well. Through Monday night: High pressure will continue to strengthen into the Inland Northwest. This makes for a light wind and precipitation-free forecast, but also with stagnant conditions leading to nuisance freezing fog and periods of low clouds. Models haven't been doing terribly well with the low clouds and stratus, so are taking more of a persistence approach with the forecast.
(Tonight) A cold front is currently moving across the Tennessee Valley late this evening, with a narrow band of light rain noted on radar moving into portions of southern middle Tennessee and northeast Alabama. In general, though think temperatures may be a tad warmer than guidance suggests given the mixing from the wind and the cloud cover in place for much of the night. For this reason, have capped lows in the lower 30s in most locations by early Monday morning.
pdf Area of low pressure has pulled offshore into the Atlantic waters. It will continue to track away to the east northeast through the night, as a ridge of high pressure builds toward the region from the west. The trailing cold front will push south of area during the overnight. Due to the timing of the cold frontal passage, lows will range from the upper 40s across inland SE GA to around 60 across north central FL.
Wilson A cool northwesterly flow aloft ahead of a Pacific Northwest high pressure ridge may bring a few light snow showers to Blaine County, and to areas east and southeast of there overnight.
See nothing to disturb this, and expect a repeat under the strong high pressure. So expect either fog or this low cloudiness to persist if at a low elevation, especially in the Snake River plain, eastern Magic Valley, and basins and valleys in the southern and eastern highlands.
218 PM MST Sun Nov 26 2023 A cool northwesterly flow aloft ahead of a Pacific Northwest high pressure ridge may bring a few light snow showers to Blaine County, and to areas east and southeast of there overnight.
A broad trough of low pressure extended from northern portions of the NW Territories, south to the Arklatex. Ridging extended from the Olympic Peninsula north into the Yukon. Behind this exiting trough, gusty northwesterly winds had developed this afternoon across the area. I did go a little warmer in the far northeastern forecast area for 1) higher expected winds this evening and 2) increasing cloudiness toward Monday morning. This feature will bring some mid and high level cloudiness to northeastern areas late tonight-thus the warmer lows forecasted there. H85 temps in the NAM12 are running 2 to 3C warmer Monday compared to this afternoon's H85 temps. Lows Monday night will be slightly warmer with readings in the teens.
441 PM CST Sun Nov 26 2023 (This afternoon through Monday night) An Upper trough today extends from Ontario down along the MS River Valley as high pressure builds along the West Coast. As this trough moves east the ridge will move ashore being centered over OR Monday and continue to progress eastward Monday night. A cold front blew through the area this morning with a gusty north wind.
132 PM PST Sun Nov 26 2023 High pressure over the Pacific Northwest will aid in an offshore flow pattern for our region over the next couple of days, which will continue dry weather with warm afternoons and cool nights.
608 PM CST Sun Nov 26 2023 * Light rain and clouds will exit the region tonight as a cold front moves through the region.
544 PM CST Sun Nov 26 2023 (This evening through Monday) Our persistent low stratus deck cleared out this morning, thanks to drier air being ushered in behind the upper level trough and cold front. This puts lows tomorrow morning in the mid to upper 20s in the northern Big Country and the low to mid 30s in the I-10 corridor. Tomorrows temperatures will be more than 10 degrees below normal in some areas, with values in the low to mid 50s. Winds will remain light and turn to the east as the high pressure situates itself to our north.
(This evening through Monday) Passing high clouds this morning over the southern 2/3 of the region will lead to slightly cooler temperatures this afternoon. On Monday, expecting slightly warmer temperatures with the absence of high clouds and the placement of a ridge aloft.
Current temperatures are in the low 30s to low 40s with a few upper level and mid level cloud decks lingering over the area.
500 PM MST Sun Nov 26 2023 Updated Aviation Discussion A cool northwesterly flow aloft ahead of a Pacific Northwest high pressure ridge may bring a few light snow showers to Blaine County, and to areas east and southeast of there overnight.
523 PM CST Sun Nov 26 2023 (This evening through Monday night) 19z WV satellite shows a large scale upper trough over the Midwest and northwesterly flow aloft over the Panhandles. At the surface, winds are out of the north in the wake of yesterday's reinforcing cold front. Thus, expect highs to reach the upper 40s and lower 50s in the southern Texas Panhandle while some portions of the northeast may hold back in the lower 40s if snowpack persists.
Key Messages: - Slick spots possible from above freezing daytime highs and cold overnight lows - Gradually warming into midweek - Wet weather possible (30-60%) late week into the weekend Discussion: Focus for the next several days will be gradually warming temperatures in the wake of the departing upper trough.
Looking at temperatures, a "warmer" but still below seasonal day is anticipated for the area, as the clear skies help with air mass recovery, slowly inching the region back toward seasonal temperatures. With that, the plains will reach into the low to mid 40s, the valleys warming into the mid 30s to low 40s, and the mountains rising into the upper 10s to low 20s. In fact, plains could see some near 60f maxes Wed, especially where winds increase a bit ahead of the lee trough. Weakening upper wave then moves through the srn Rockies Wed night/Thu, bringing mainly light snow to the Continental Divide, but only a few snow showers/flurries elsewhere over the high terrain. On the plains, nrn stream wave will push some cooler air southward by Thu afternoon, with max temps falling around 15 degf versus Wed.
227 PM MST Sun Nov 26 2023 The Tri-State area will be situated on the western periphery of a broad upper trough (over the central/eastern CONUS). and the eastern periphery of an upper level ridge (over the western CONUS) throughout this time period.
559 PM CST Sun Nov 26 2023 Key Messages: - Light snow continues to fall across the region this afternoon ahead of a cold front.
Key Messages: * We are warmer today than anticipated and snow has melted across most of the area except a few deeper swaths.
Building high pressure will bring dry and stable conditions over Utah and southwest Wyoming through at least midweek. This will result in gradually less cold temperatures over the higher terrain while developing inversions limit warming and reduce air quality in most valleys.
(The rest of tonight) Latest surface analysis indicates that high pressure has settled into the Southern Plains, and is centered to our west and southwest this evening.
Expect the winds to slowly diminish inland as the center of the high builds east and decreases the pressure gradient across the area. Overnight lows on track to reach the lower/mid 30s north of I-10, upper 30s to near 40 further south.
As a result afternoon highs should be near yesterday's across the southern half of the forecast area where mid cloud will be most abundant but a bit warmer across the north where more insolation is expected.
Many locations are already in the 30s and most will fall below freezing before sunrise. Highs will make it into the lower to middle 50s but wind speeds will be much lighter than today, so it won't feel too bad.
High pressure will remain the primary influence across western Washington through the first half of the week, keeping conditions cool and dry. The ridge will dampen and move off to the east by midweek, which will open the door for a series of frontal systems to move across the area late in the week and over the weekend.
940 PM PST Sun Nov 26 2023 Persistent high pressure through the middle of the week will keep the region precipitation-free and stagnant with little variation in temperatures each day. Freezing fog and low clouds will be a daily concern as well. Through Monday night: High pressure will continue to strengthen into the Inland Northwest. This makes for a light wind and precipitation-free forecast, but also with stagnant conditions leading to nuisance freezing fog and periods of low clouds. Models haven't been doing terribly well with the low clouds and stratus, so are taking more of a persistence approach with the forecast.
1029 PM CST Sun Nov 26 2023 * Light rain and clouds will exit the region tonight as a cold front moves through the region.
Updated sky cover grids to reflect latest trends in the low stratus and raised overnight min temperatures in areas under substantial cloud cover. Building high pressure will bring dry and stable conditions over Utah and southwest Wyoming through at least midweek. This will result in gradually less cold temperatures over the higher terrain while developing inversions limit warming and reduce air quality in most valleys.
1111 PM CST Sun Nov 26 2023 Key Messages: - Light snow continues to fall across the region this afternoon ahead of a cold front.
919 PM MST Sun Nov 26 2023 The Tri-State area will be situated on the western periphery of a broad upper trough (over the central/eastern CONUS). and the eastern periphery of an upper level ridge (over the western CONUS) throughout this time period.
There will be little mixing of the lower air mass to help dissipate pollutants.
Analysis and Discussion: The surface cold front responsible for the showers yesterday has moved off to the east and colder temperatures are starting to filter into the region. Today will feature colder temperatures with highs topping out in the low to mid-30s. Snow flurries will quickly diminish toward noon as drier air works into the region and the low- level moisture evaporates.
1101 PM CST Sun Nov 26 2023 (Tonight) A cold front is currently moving across the Tennessee Valley late this evening, with a narrow band of light rain noted on radar moving into portions of southern middle Tennessee and northeast Alabama. In general, though think temperatures may be a tad warmer than guidance suggests given the mixing from the wind and the cloud cover in place for much of the night. For this reason, have capped lows in the lower 30s in most locations by early Monday morning.
1029 PM CST Sun Nov 26 2023 (The rest of tonight) Latest surface analysis indicates that high pressure has settled into the Southern Plains, and is centered to our west and southwest this evening.
Highs will only reach the middle 20s north of Highway 30 where the stratus deck lingers the longest, to the lower 30s in northeast MO, southeast IA, and west central IL, where more sun than clouds is expected.
1044 PM CST Sun Nov 26 2023 - Cold air is moving in behind a cold front.
1041 PM CST Sun Nov 26 2023 (This evening through Monday) Surface ridging will not budge much through the overnight hours leading to light winds again and a relatively cold night. However, West Texas will still be under enough influence from the ridge, generating temperatures only slightly warmer than today.
1042 PM CST Sun Nov 26 2023 (This evening through Monday) Our persistent low stratus deck cleared out this morning, thanks to drier air being ushered in behind the upper level trough and cold front. This puts lows tomorrow morning in the mid to upper 20s in the northern Big Country and the low to mid 30s in the I-10 corridor. Tomorrows temperatures will be more than 10 degrees below normal in some areas, with values in the low to mid 50s. Winds will remain light and turn to the east as the high pressure situates itself to our north.