Aikyam-Lab/Synoptic-Bench huggingface dataset:
1225 PM EST Fri Feb 2 2024 High pressure brings dry, milder weather for the weekend.
(Tonight and Saturday) An expansive omega blocking pattern is in place over much of NoAM attm, but there's entirely too much jet energy coming in from the Pacific into the Southwest to keep this pattern in place. Showers and storms will increase to our west and southwest as the system emerges into the High Plains this afternoon.
(This afternoon through Saturday) High pressure is currently overhead across the Deep South, with crystal clear skies except for a few high cirrus clouds. Brief 500mb ridging will commence this evening and overnight tonight, followed by height falls as a very dynamic and broad upper level trough/closed low ejects southeastward from the southern Rocky Mountain states. Following a cool night with overnight lows in the 40s, Saturday will feature slightly cooler daytime highs in our eastern counties as an easterly surface flow develops ahead of the approaching system.
(This evening through Saturday Night) An amplified upper-trough across the west will translate east overnight with an area of low-pressure deepening at the base of the trough across the Texas panhandle by midnight. Southwest flow ahead of the upper-trough will contribute to increased moisture bringing widespread cloud-cover across the region this evening. With southerly flow increasing ahead of the height falls associated with the approaching trough, PW are values forecast to increase.
Quiet weather is expected across the region heading into the weekend as high pressure begins to build overhead. As the high pressure continues to move in cloud cover should begin to dwindle, with some sunshine possible by Saturday afternoon.
Slightly warmer temperatures are expected as we head into the weekend with highs in the mid to upper 70s.
1121 AM CST Fri Feb 2 2024 - A weak front will bring low clouds and slightly cooler temperatures to the area, mainly in the northeast today.
1245 PM EST Fri Feb 2 2024 Light snow shower activity will dwindle by tonight as high pressure builds into the region. Pressure rises will occur today through tomorrow as breezy north winds develop in advance of high pressure approaching from Ontario/Quebec. With temperatures stagnant near freezing, we will continue to see mainly above freezing temperatures at lower elevations even within snow showers. With high pressure still building in, a pressure gradient will persist to support another breezy day, although winds should begin to subside in northern New York and eventually northern Vermont late in the day. High pressure will keep the weather quiescent through the latter half of the weekend.
Farther west near the Texas and New Mexico border, clouds are more agitated and likely associated with the initial push of a Pacific cold front. Early Saturday morning, the upper low is expected to be located across northern parts of the Texas Panhandle. The low is expected to track slowly into southwestern Oklahoma by early Saturday evening.
111 PM EST Fri Feb 2 2024 A cold front will move through early this morning, which will bring light rain and snow to parts of the area. 1240 PM Update: The main change for this update was to add drizzle and freezing drizzle to the forecast, especially overnight tonight. Any lingering snow will not amount to much, mainly a dusting in most places, but with temps above freezing, most of it will melt on contact. In the lower levels, plenty of shallow moisture is present, allowing for patchy fog and low clouds. Some lingering light snow showers will be possible across the Finger Lakes Region this evening, but otherwise a drying trend will be present as high pressure moves in. High pressure will be in place over the region. High pressure over our region slowly moves eastward.
(Today) Latest GOES-16 WV/IR imagery shows an upper-level trough moving over far NW Mexico/Desert Southwest early this morning. Ahead of this trough, low-level warm air and moisture will continue to surge northward into eastern OK and western AR from the Gulf, with model consensus indicating precipitable water (PWAT) values approaching or exceeding one inch by this afternoon. Afternoon high temperatures likely wonât be as warm as yesterday, but highs in the mid-upper 60s will be common across the region today, with a few locations possibly reaching the lower 70s.
1251 PM EST Fri Feb 2 2024 A dry cold front passes through the region tonight with cooler temperatures expected this weekend.
200 PM EST Fri Feb 2 2024 (This afternoon through Saturday) High pressure will continue to dominate through the short term forecast period bringing beautiful, warm, and dry weather to the area. Overnight, high pressure will set up east of the Appalachians resulting in a wind shift to the east.
1109 AM CST Fri Feb 2 2024 (Today and tonight) A negatively tilted upper trough is currently approaching from the west and will lead to potentially active weather today. The first round of PoPs will be this morning downstream of the broader trough axis. A strengthening, closed upper low is expected to develop over eastern New Mexico. Scattered thunderstorms remain possible behind the higher instability axis along a weak dryline.
1122 AM CST Fri Feb 2 2024 Upper level ridging remains fixed over the Mid-South this morning bringing mostly clear skies, light south/southwest winds, and current temperatures in the 50s and 60s. Today's forecast high temperatures are will be in the upper 60s with some areas reaching the lower 70s. This evening, an upper level low pressure system will set up over the four corners region and begin impeding moisture into the dry column currently fixed over the Mid-South. AEH Warmer today and tomorrow.
952 AM MST Fri Feb 2 2024 Morning Update: Adjusted the immediate near-short term forecast to account for the low clouds and fog this morning encroaching westward from North Dakota.
Upper level trough continues to slowly move south along the WA/OR coast. Cooler air aloft will move into SE Oregon and SW Idaho south of the Snake Basin later this afternoon with 500mb temps of -30 to -35C.
High pressure, dry conditions, and plenty of sunshine in the forecast for the short term. Strong upper ridging will remain overhead as the region lies beneath an omega blocking pattern. As such, expect dry and warmer than normal conditions to continue into Saturday. We do have a weak cold front located across the northern half of the forecast area this afternoon, stretching east along roughly the TN/KY border and off towards the mid-Atlantic seaboard.
High pressure and attendant drying helping scour out the clouds from north to south across the area this morning. East/northeast winds rotating around that high will bring slightly cooler conditions today to northern Michigan. Large area of strong high pressure is centered over Ontario early this morning with pronounced ridging extending southward thru the Western Great Lakes region. High pressure center will slowly drop south over the next 24 hours. with mostly clear skies expected for tonight as strong high pressure/subsidence becomes centered overhead.
20% chance of temperatures being low enough to have patchy freezing drizzle in some areas. - Warmer than average temperatures look to continue. Based on webcam and ASOS/AWOS visibility observations, stratus is replacing the fog on the eastern fringes of the low-level cloud deck. Guidance shows a stout anticyclone over the area this morning slowly moving eastward in the upper levels. Confidence around 20% in its occurrence currently, but the soundings seem to support freezing drizzle if temperatures can drop enough. If clouds can clear, temperatures will be lower and freezing drizzle will be more likely. Temperatures look to be above average into mid-week, with a pattern change coming after that that will lower temperatures to still above- average but more around the freezing mark.
A winter storm moving through will continue to result in cooler temperatures and periods of precipitation through tonight.
(Rest of Today) Light NW flow aloft will persist over the TN Valley today, as an amplified mid-level ridge shifts slowly eastward across the MS Valley. In the presence of light/variable winds and no thermal advection, highs will reach the 65-70F range for most of the forecast area (with the exception of the Cumberland Plateau which will remain in the lower 60s).
1131 AM CST Fri Feb 2 2024 Updated aviation portion for 18Z TAF issuance - Areas of dense fog or freezing fog are possible late tonight and early Saturday, especially in the Fox Valley and lakeshore areas. So we expect areas of dense fog and freezing fog to form in these areas, with less significant fog further to the west. Highs today will be cooler than yesterday, but still 10 to 15 degrees above normal for this time of the year.
We will be a bit warmer for Saturday, but overall still quite nice and no weather impacts expected other than some patchy fog in the morning.
Early this afternoon, an upper level trough was advancing east across the Desert Southwest. This system will eventually close off into an upper low across northeastern New Mexico and the Texas Panhandle later this evening and overnight. Skies will clear from west to east overnight, with sunny and cooler temperatures expected for Saturday.
1056 AM CST Fri Feb 2 2024 (Rest of Today) Light NW flow aloft will persist over the TN Valley today, as an amplified mid-level ridge shifts slowly eastward across the MS Valley. In the presence of light/variable winds and no thermal advection, highs will reach the 65-70F range for most of the forecast area (with the exception of the Cumberland Plateau which will remain in the lower 60s).
229 PM EST Fri Feb 2 2024 A dry cold front passes through the region tonight with cooler temperatures expected this weekend.
The leading edge of the upper level trough is helping the shower and storm activity now through this evening. Tomorrow this low is progged to close off and become cutoff from the main flow and traverse across the combined Panhandles. Going into tomorrow afternoon wrap around moisture from the low will reintroduce PoPs mainly to the northern combined Panhandles. Daytime highs are expected to be slightly cooler, near normal, in the 50s for the weekend thanks to this frontal passage.
As we approach freezing overnight, more fog will likely develop along and east of I-29 tonight. Otherwise, expect highs to stay in the low to mid 40s both Today and Saturday with overnight lows in low to mid 30s.
High pressure remains in place keeping skies mostly clear. (This afternoon through Saturday Night) Dry conditions will continue to prevail across our area as upper level ridging influences across a broad sector of central contiguous U. along with surface ridging influences retrograding westward from Ontario, Canada keep a developing storm system to our west/southwest. Lows tonight will be above freezing spanning the 30s.
Previous discussion follows: Quiet weather is expected across the region heading into the weekend as high pressure begins to build overhead. As the high pressure continues to move in cloud cover should begin to dwindle, with some sunshine possible by Saturday afternoon.
(This afternoon through Saturday) High pressure will continue to dominate through the short term forecast period bringing beautiful, warm, and dry weather to the area. Overnight, high pressure will set up east of the Appalachians resulting in a wind shift to the east.
608 PM EST Fri Feb 2 2024 (Through Saturday) Fairly benign weather pattern with high pressure in place.
810 PM CST Fri Feb 2 2024 Dry and unseasonably warm temperatures will cease on Saturday as a backdoor cold front and associated low pressure system bring showers back to the Mid-South. The highest rainfall totals will exist for areas along and south of I-22, where up to 1.
722 PM CST Fri Feb 2 2024 (This afternoon through Saturday) High pressure is currently overhead across the Deep South, with crystal clear skies except for a few high cirrus clouds. Brief 500mb ridging will commence this evening and overnight tonight, followed by height falls as a very dynamic and broad upper level trough/closed low ejects southeastward from the southern Rocky Mountain states. Following a cool night with overnight lows in the 40s, Saturday will feature slightly cooler daytime highs in our eastern counties as an easterly surface flow develops ahead of the approaching system.
957 PM EST Fri Feb 2 2024 High pressure ridges in overnight with some decreasing cloudiness, and cooler temperatures than recent nights. High pressure continues to build in from southeast Canada tonight. A large closed off upper level low will be located east of the area offshore eastern New England, with high pressure to the west over the Great Lakes.
Low temperatures are forecast to range the mid 40s, remaining slightly warmer along the Treasure Coast.
Otherwise, large scale forcing supports high pressure and dry air. High pressure has become well-established across the Great Lakes today, with northeast flow still supporting a region of stratocu across the Tri Cities and Thumb, but clearing elsewhere. Daytime highs hold in the mid-30s, although the thermal trough has been quite progressive which will make way for H8 temperatures to rise above 0C this evening. Subsequent warm advection through the weekend will be slow and steady as continued northeast flow is in direct opposition to the warmer air upstream.
- Temperatures will remain above freezing through Saturday night and the forecast expects that the soil will thaw sufficiently in the top four inches to absorb most of this rain. This would suggest gradual warming of the ground in the lowest 4 inches and a deepening thawed layer. A negatively tilted upper trough currently extends from the Four Corners Region back across the Pacific Northwest. A closed low is forecast to develop over the Texas panhandle late tonight and remain nearly stationary on Saturday. By late Saturday night, the low should become elongated from southwest OK into north Louisiana.
643 PM EST Fri Feb 2 2024 High pressure brings dry, milder weather for the weekend. Cloud cover continues to hold tight behind departing cold front, but there are some breaks in the clouds, and expect much of it to erode later this evening and overnight, although some cloud cover may linger into Saturday particularly across the north and east. Otherwise, Saturday should be a rather nice day with high pressure in control, with a sunny sky and light surface winds. The mid-upper level pattern this period features long wave troughing off the east coast, and along the west coast, with ridging in between, over the midwest and at times edging eastward into the Great Lakes.
High pressure is holding over Florida, with early evening IR satellite showing mostly clear skies this evening. The radiational cooling will also favor areas of patchy fog and low stratus early Saturday morning, with the highest chances away over the Nature Coast and interior portions of west central Florida. High pressure will hold over the region through Saturday, with winds and seas remaining below headlines.
Looking at satellite imagery there continues to be an upper level low off the coast of Washington and Oregon. This low is continuing to bring atmospheric river (AR) moisture into area. A very weak cold front/trough is currently moving into the area from the west. As the cold front/trough continues to move through tonight into Friday, look for snow levels to fall to valley floors from the NW to SE as colder air moves in with precipitation transitioning to all snow by Friday night/early Saturday morning.
(Tonight) Tranquil weather across the Tennessee Valley this evening with high pressure at the surface just to the east of the region.
A large, potent low pressure system centered off the Oregon coast is pumping deep, moist southwest flow into the northern Rockies. As that low migrates southward towards California, it opens the door for cooler air to move into the region and snow levels to crash. Even as the low exits, light precipitation will continue as snow. Behind the exiting low, the region is left under the influence of a broad trough with overall weak flow and a lot of small, disorganized eddies spinning around. At the same time, a high pressure system is dropping out of the north along the Continental Divide, setting up more cool air to spill into the region.
(Through Saturday) Fairly benign weather pattern with high pressure in place.
438 PM CST Fri Feb 2 2024 (This evening through Saturday Night) An amplified upper-trough across the west will translate east overnight with an area of low-pressure deepening at the base of the trough across the Texas panhandle by midnight. Southwest flow ahead of the upper-trough will contribute to increased moisture bringing widespread cloud-cover across the region this evening. With southerly flow increasing ahead of the height falls associated with the approaching trough, PW are values forecast to increase.
519 PM CST Fri Feb 2 2024 (Tonight and Saturday) An expansive omega blocking pattern is in place over much of NoAM attm, but there's entirely too much jet energy coming in from the Pacific into the Southwest to keep this pattern in place. Showers and storms will increase to our west and southwest as the system emerges into the High Plains this afternoon.
637 PM EST Fri Feb 2 2024 A dry cold front passes through the region tonight with cooler temperatures expected this weekend.
314 PM CST Fri Feb 2 2024 - Patchy fog and freezing fog remains possible tonight, especially in low lying areas and in the Kettle Moraine. As temperatures fall and winds calm tonight, patchy fog and freezing fog is expected to develop. Due to high surface moisture and potential freezing fog development, slick spots are possible on untreated roads and surfaces. Increasing winds and sunshine will lift fog, and clouds are expected to finally scatter out as subsidence under high pressure in a developing omega block finally overtakes low level moisture. Expect highs in the lower 40s.
536 PM CST Fri Feb 2 2024 (This afternoon through Saturday Night) Dry conditions will continue to prevail across our area as upper level ridging influences across a broad sector of central contiguous U. along with surface ridging influences retrograding westward from Ontario, Canada keep a developing storm system to our west/southwest. Lows tonight will be above freezing spanning the 30s.
938 PM EST Fri Feb 2 2024 Dry high pressure will dominate the area over the first half of the weekend.
110 AM EST Sat Feb 3 2024 A dry cold front passes through the region tonight with cooler temperatures expected this weekend.
1033 PM CST Fri Feb 2 2024 (The rest of tonight) At mid evening a mid/upper level low. low pressure was positioned over the Panhandles with a frontal boundary extending southward into Central Texas. This activity was moving eastward with the movement of the main mid/upper level low. the mid/upper level low is progged to move into the Panhandles with widespread showers spreading into Eastern Oklahoma and Northwest Arkansas. Latest short-term solutions continue to indicate that the majority of the elevated instability overnight should weaken over Eastern Oklahoma as the low level jet weakens/lifts off to the northeast.
(The rest of tonight) At mid evening a mid/upper level low. low pressure was positioned over the Panhandles with a frontal boundary extending southward into Central Texas. This activity was moving eastward with the movement of the main mid/upper level low. the mid/upper level low is progged to move into the Panhandles with widespread showers spreading into Eastern Oklahoma and Northwest Arkansas. Latest short-term solutions continue to indicate that the majority of the elevated instability overnight should weaken over Eastern Oklahoma as the low level jet weakens/lifts off to the northeast.
High resolution models are consistent in showing an area of heavier showers developing over the lower Snake Plain from northern Malheur County to the Ada/Elmore line before sunrise Saturday.
1230 AM EST Sat Feb 3 2024 High pressure builds in overnight with decreasing cloud cover and cooler temperatures than recent nights. High pressure continues to build in from southeast Canada tonight. A large closed off upper level low will be located east of the area offshore eastern New England, with high pressure to the west over the Great Lakes.
Upper low along the PACNW coast evident in water vapor imagery will move south the next couple of days leaving the region under southerly flow aloft.
100 AM EST Sat Feb 3 2024 Dry high pressure will push into the area from the north today.
The low clouds will remain through sunrise and potential through mid morning. With high pressure dominating the pattern with a dry air throughout the rest of the atmosphere clear sunny skies will be welcome reprieve from a cloudy January.
Large area of strong high pressure remains centered from Quebec into the Great Lakes region early this morning. Some patchy fog is also developing as some of this low stratus further lowers toward the ground.
Water vapor imagery this morning shows in omega block upper level pattern over the Lower 48. Moisture from the mountain west rides northward into northern Canada, rounds the apex of the upper level ridge, and heads southward across our region.
Cooler, albeit still abnormally warm for early February, temperatures are anticipated today, with highs generally in the mid-upper 50s.
116 AM EST Sat Feb 3 2024 High pressure brings dry, milder weather for the weekend. An area of high pressure centered over the Great Lakes region will bring dry weather and abundant sunshine to the CWA during the day. After a cool start to the day, temperatures are expected to warm above normal with highs reaching mid 40s to 50s in the lowlands and 40s in the higher elevations. Quiet weather continues through tonight as high pressure and upper ridging remain in control overhead. The mid-upper level pattern this period features long wave troughing off the east coast, and along the west coast, with ridging in between, over the midwest and at times edging eastward into the Great Lakes.
1135 PM CST Fri Feb 2 2024 (Tonight) Tranquil weather across the Tennessee Valley this evening with high pressure at the surface just to the east of the region.
(Today and tonight) The trough axis that contributed to yesterday's thunderstorms has moved well off to the east and clear skies are seen across much of the forecast area in a drier, westerly surface flow. As of the latest model runs, GFS indicates the low farther north than other guidance and thus places stronger winds over the southern South Plains region. Otherwise temperatures will be cooler than previous days, with highs ranging from the upper 50s to mid 60s.
75 Previous short-term discussion: (This afternoon through Saturday) High pressure is currently overhead across the Deep South, with crystal clear skies except for a few high cirrus clouds. Brief 500mb ridging will commence this evening and overnight tonight, followed by height falls as a very dynamic and broad upper level trough/closed low ejects southeastward from the southern Rocky Mountain states. Following a cool night with overnight lows in the 40s, Saturday will feature slightly cooler daytime highs in our eastern counties as an easterly surface flow develops ahead of the approaching system.
324 AM EST Sat Feb 3 2024 - Mix of sun and cloud through the early this week as the region generally holds under the influence of high pressure and wind off the Lakes Huron. High pressure remains firmly in place across the central Great Lakes with its center eventually drifting directly over SE MI late today. Overall surface flow weakens over the course of the day becoming more variable direction as the high slides overhead which affords a window of greatly limiting if not outright cutting off moisture flux from Lake Huron.