Aikyam-Lab/Synoptic-Bench huggingface dataset:
A low pressure system centered in northeast Oregon this evening was supporting snow showers over the higher elevations of Baker County and the West Central Idaho Mountains. The low is expected to move southeastward across our area through Thursday for additional snow accumulations in the northern mountains, especially in the West Central Mountains.
1222 AM EST Thu Feb 8 2024 High pressure over the eastern United States will provide fair dry weather through Thursday.
Upper level trough will shift east of the Cascades tonight.
918 PM CST Wed Feb 7 2024 With high pressure over the southeast U. and low pressure over the Plains, southeast winds should stay up tonight to bring mild temperatures along with clouds. By daybreak, a weak upper level disturbance will make its way into the forecast area as the upper level ridge shifts to the east.
325 AM EST Thu Feb 8 2024 High pressure maintains dry weather today.
Meanwhile, a closed upper low is dropping southeast across southern California. Near the surface, a lee side trough of low pressure in southeast Colorado is edging eastward into extreme southwest Kansas. With help of westerly downsloping drying out the lower/mid levels, precip chances will remain absent across western Kansas through tonight. 1 showing an 80-90% probability of temperatures falling below freezing in west central Kansas to only a 10% probability of that occurring in south central Kansas.
Winds remain stubbornly from the northwest to north across the Lower and Middle Keys, while slightly east of north across the Upper Keys. Meanwhile, an approaching high pressure moving towards the Mid-Atlantic States will clock our winds around to the northeast and east overnight while maintaining speed.
Roads will be wet today with temperatures rising to just above freezing in valley locations.
The broad upper level trof that has brought inches of snow to our region, continues overhead favoring snowfall through this morning.
- Trending cooler and mainly dry late weekend. Still gusts reaching into the low 30s afternoon through late evening. Secondary wave follows late Fri time with cold frontal passage. Quickly trending dry and cooler post frontal through the remainder of this weekend. A weakening cold front will bring chances for rain showers across northern Indiana late this afternoon into the overnight hours.
Highs will generally remain into the low to mid 70s.
High pressure builds in beginning today with mostly dry weather expected for the late week. Daytime highs reaching the lower to mid 50s.
Today through Friday night An upper level low currently over southern California will drift southeast and center over the southern tip of NV by around noon today. Best chances of impactful snow will be along the Highway 50 corridor SE of Ely to the Utah state line.
WV imagery shows the deep upper level trough that brought the wind and dust yesterday has moved up into the Central Plains, leaving southwesterly flow aloft in it's wake. Temperatures will remain above-normal in the 60s for most spots today with mostly clear skies, and overnight lows will remain above freezing.
- Warmth continues through Friday before cooler temperatures move in for the weekend.
High pressure remains in control and will continue to support a gradual warming trend through the weekend.
733 AM EST Thu Feb 8 2024 High pressure maintains dry weather today. Should see the lowest RH values in the upper teens across the southern coalfields this afternoon where a weak downslope wind component will exist. A high pressure system will provide dry weather today, although some higher clouds will move over the region. Models are showing dry air in the lower levels of the atmosphere.
525 AM CST Thu Feb 8 2024 (Today) A return flow pattern is in place across much of the region this early Thu morning, as high pressure at the sfc pivots into the southern Atlantic Basin.
Light accumulating snow of around 1" or less is expected today into Friday morning, mainly north of highway 12 and across the higher elevations of northeastern SD. Fog has mostly dissipated as winds shift to the northwest and cold advection takes over in the low levels. Cluster 1 with the highest membership does have a pretty similar distribution amongst all the GEFS/ENS/GEPS, which may lead one to side towards this outcome. How does this equate to surface temps? Overall, these differences aren't huge, basically being a difference between upper 20s/low 30s for highs in the warmer solution, to the upper teens/20s in the coldest solution.
624 AM CST Thu Feb 8 2024 (Today through Friday) This AM, we have ridging at both the surface and aloft along the Atlantic States. This will allow the E coast ridge to get squeezed into the Atlantic as well resulting in the flow across AL to flatten and become WSWrly.
(Today through Friday) A weak cold front is moving into the southern Edwards Plateau. Widespread stratus has developed across south central Texas ahead of the cold front. The weak cold front is forecast to move into the Hill Country this morning, eventually stalling roughly near the I-35 this afternoon. Highs Friday are forecast to be a few degrees warmer.
Current water vapor imagery shows a broad, deep trough over Washington, Oregon, Idaho, Nevada, and California with strong high pressure ridging aloft off the Pacific coast. There is a deep upper level low over southern California/southern Nevada in this broad trough, as well as remnants of an upper level low over southeast Idaho and a stronger upper level low over eastern Oregon. This long wave trough and associated lows will bring light to moderate snow into our area today and Friday. For today, remnants of an upper level low will continue to bring snow mainly in the mountains. For Friday, the upper level low over eastern Oregon will move over our area. Held off on the upper amounts of snow due to the upper level low's lack of moisture with it.
553 AM CST Thu Feb 8 2024 (Today through Friday) A weak cold front is moving into the southern Edwards Plateau. Widespread stratus has developed across south central Texas ahead of the cold front. The weak cold front is forecast to move into the Hill Country this morning, eventually stalling roughly near the I-35 this afternoon. Highs Friday are forecast to be a few degrees warmer.
NorCal will remain on the backside of the large upper trough as it gradually shifts east the next couple of days. Temperatures will remain below average through Friday before moderating over the weekend as ridging from the eastern Pacific moves overhead.
618 AM EST Thu Feb 8 2024 High pressure over the eastern United States will provide fair dry weather today. Some thin high clouds will begin to increase across the area this morning, thicker clouds arriving Friday ahead of a cold front. Key Message: Warmer temperatures. High pressure will begin to drift off the coast today, allowing for winds to become southerly. about 10 degrees warmer normal. This blanket of clouds will help keep temperatures from dropping below freezing tonight. Key messages: - Chance of rain returns - Warmer than normal Air mass saturated from the top down with little to no precipitation until late Friday in the mountains.
Snow will gradually wind down through daybreak although slick and icy roads will likely persist through the morning as temperatures remain near or below freezing. Elsewhere, some patchy freezing fog and low clouds may occur this morning given the amount of moisture left behind from systems this week. * The longwave trough will continue to slowly shift east in response to a building ridge off the West Coast.
Looking aloft, broad troughing will be noted over the western states through much of the near term. Over time, as the trough becomes more pronounced, a deep southerly flow will transport abundant moisture in our direction, and this will result in better rain chances. Ahead of the trough, a new storm system will eject through the Plains toward the mid-Mississippi Valley Friday and Friday night.
High pressure will be ridging across the area through the weekend, keeping rain-free conditions and gradually warming temperatures, with winds remaining generally easterly through the end of the week, then becoming more S/SE over the weekend.
Temperatures will drop down to around or just below freezing by daybreak Friday morning. Friday, temperatures will be cooler, but still well above normal will highs in the mid 40s to mid 50s. One thing of note is that temperatures will be falling down to around freezing which means we might see a changeover from light rain to flurries as precipitation comes to an end along I-80.
629 AM EST Thu Feb 8 2024 (Today through Friday) A mid-to-upper level ridge will remain dominant over the Caribbean and Florida Peninsula for the end of this week, keeping dry weather conditions ongoing. The low out in the Atlantic will be far enough away that it will begin to be a non-factor on the local weather today and thus winds will become less breezy as the high pressure builds. Overall, expect mostly sunny skies and dry weather with the presiding high pressure. Temperatures will be in the mid to upper 70s both days with lows Thursday night in the low to mid 60s along the east coast and 50s elsewhere across South Florida.
545 AM EST Thu Feb 8 2024 High pressure maintains dry weather today. A high pressure system will provide dry weather today, although some higher clouds will move over the region. Models are showing dry air in the lower levels of the atmosphere.
Otherwise, southerly winds are expected to prevail across the Lower Valley and along the coast today. Another warm day is expected today with highs in the upper 70s to the lower 80s, except for the lower 70s along the beaches. Partly cloudy and mild tonight with lows generally in the low to mid 60s. Warm temperatures continue on Friday with highs in the low to mid 80s, except for the 70s near the coast.
Low level flow is beginning to pick up on the westerly side of the ridge, with moisture & warmth expected to increase through the day. Anomalous 99th percentile 590DM H5 subtropical ridge is building across the Bay of Campeche & expected to build eastward across the Yucatan Peninsula into the Caribbean Sea. With deepening subtropical ridge, jet will slightly lift to the north along the subtropical ridge. Friday: As subtropical ridge shifts eastward over the Caribbean Sea & builds, expect another cloudy, warm & showery aftn. As the cold core trough swings into the Great Lakes & longwave trough axis deepens over the Desert Southwest, expect H3 southwesterly jet to intensify. Even under cloudy skies, strong WAA will keep highs some +10 degrees F above normal in the low-mid 70s on Friday.
438 AM EST Thu Feb 8 2024 High pressure will build in from the north this morning then shift to the coast. A period of dry weather follows with warmer temperatures expected into the weekend.
205 AM MST Thu Feb 8 2024 Upper level low is currently over western North Dakota with wrap around moisture bring snow over most of NE Montana early this morning. While the low will move to the east today, the wrap around moisture will remain over the forecast area.
(Today through Friday) This AM, we have ridging at both the surface and aloft along the Atlantic States. This will allow the E coast ridge to get squeezed into the Atlantic as well resulting in the flow across AL to flatten and become WSWrly.
(Rest of today through Friday) A mid-to-upper level ridge will remain dominant over the Caribbean and Florida Peninsula for the end of this week, resulting in dry weather conditions prevailing. The low pressure system out in the Atlantic will be far enough away today that it will begin to be a non-factor on the local weather pattern and thus winds will become less breezy as the high pressure builds into our area. Overall, expect mostly sunny skies and dry weather with the presiding high pressure. Temperatures will be in the mid to upper 70s both days with lows tonight dipping into the low to mid 60s along the east coast and 50s elsewhere across South Florida.
1127 AM CST Thu Feb 8 2024 (Today through Friday) This AM, we have ridging at both the surface and aloft along the Atlantic States. This will allow the E coast ridge to get squeezed into the Atlantic as well resulting in the flow across AL to flatten and become WSWrly.
High pressure begins to build aloft today with a pleasant weekend in store. Overall, temps tonight into Friday morning should come in close to what was observed last night, perhaps a degree or two cooler.
The Sunshine State is remaining solidly under the ridge that is dominating the weather pattern across the eastern U.
- Trending cooler and mainly dry late weekend. Initially dry upstream airmass will limit any precip potential, but some low end chance of light rain showers possible late this afternoon across the west as low level theta-e ridge builds into the area. Still gusts reaching into the low 30s afternoon through late evening. Secondary wave follows late Fri time with cold frontal passage. Quickly trending dry and cooler post frontal through the remainder of this weekend. A weakening cold front will bring chances for rain showers across northern Indiana late this afternoon into the overnight hours.
231 PM EST Thu Feb 8 2024 (This afternoon through Friday) High pressure ridge currently stretches from the Delmarva Peninsula back through northeast GA. The ridge will move offshore tonight as a frontal boundary approaches from the north and west. Not confident on exactly how far south the boundary will make it into GA, so the highest pops should remain along the NC/TN/GA border.
The upper low currently over the Arizona/California state line will push eastward through the night and make its way to northern New Mexico by sunrise and eastern Colorado/western Kansas by tomorrow afternoon. Winds will be westerly once again and will allow for dewpoints to drop further and end in the low teens to mid 20s by early evening.
(Rest of Today) Southwesterly flow aloft across the TN Valley will strengthen into the 55-65 knot range over the course of the day as a mid- level ridge translates eastward downstream from a broad longwave trough encompassing much of western North America. Due to an abundance of high-level clouds in the SW flow aloft (which will provide overcast conditions for much of the day), highs will be a few degrees cooler compared to yesterday (u50s in elevated terrain and l-m 60s in the valley).
Wrap around precipitation continues to move mainly south/southeastward across western and central North Dakota, underneath a weak to moderate 600-500mb TROWAL wrapping around the backside of the upper low. Mid/upper level low lifts into the northwestern Great Lakes region this evening, then continues eastward Friday morning, ending snowfall across the region along with winds diminishing from west to east later tonight into the day Friday. An upper level trough over the Northern Rockies and an associated mid level wave may bring some lingering light snow to western ND on Friday, otherwise should be dry elsewhere by the afternoon.
1020 AM EST Thu Feb 8 2024 High pressure will build in from the north this morning then shift to the coast. A period of dry weather follows with warmer temperatures expected into the weekend.
- Trending cooler and mainly dry late weekend. Still gusts reaching into the low 30s afternoon through late evening. Secondary wave follows late Fri time with cold frontal passage. Quickly trending dry and cooler post frontal through the remainder of this weekend. Gusty southerly winds around 25kts today with some LLWS possible after 23z Thu ahead of a weak cold frontal passage that will bring increased chances for rain showers across the area late this afternoon into the overnight hours along with MVFR conditions.
Even with the upper ridge flattening, it is expected to remain strong enough over the Southeast to keep temperatures well above seasonal norms.
This afternoon winds behind the cold front are west- northwesterly sustained at 15-20 mph with gusts 25-30 mph.
(This afternoon through Friday night) On the backside of the upper trough that provided yesterday's Pacific front and winds, southwesterly flow aloft has been established and will persist throughout the short term.
Mountain valleys will see another 1-2 inches and isolated rain/snow showers are possible across lower elevations of SE Oregon, into the lower Snake Plain of Idaho into this evening. Have updated the forecast for precipitation chances through this afternoon, mostly across the lower Snake Plain and Weiser Basin.
1122 AM CST Thu Feb 8 2024 (Today through Friday) A weak cold front is moving into the southern Edwards Plateau. Widespread stratus has developed across south central Texas ahead of the cold front. The weak cold front is forecast to move into the Hill Country this morning, eventually stalling roughly near the I-35 this afternoon. Highs Friday are forecast to be a few degrees warmer.
1042 AM EST Thu Feb 8 2024 High pressure over the eastern United States will provide fair dry weather today. Some thin high clouds will begin to increase across the area this morning, thicker clouds arriving Friday ahead of a cold front. Key Message: Warmer temperatures. High pressure will begin to drift off the coast today, allowing for winds to become southerly. about 10 degrees warmer normal. This blanket of clouds will help keep temperatures from dropping below freezing tonight. Key messages: - Chance of rain returns - Warmer than normal Air mass saturated from the top down with little to no precipitation until late Friday in the mountains.
A moderately strong cold front sliding south out of Canada, will bring gusty east- northeast winds of 20-25 mph to the Flathead Valley and West Glacier Region, exasperating the black ice formation early Friday morning. The lower elevations of Lemhi County will see similar snow amounts as the valleys of western Montana. A weak ridge of high pressure will begin to build over the Pacific NW this weekend, though with the Northern Rockies expected to be on the eastern edge, mostly cloudy conditions will result.
A mid- and upper-level ridge is clearly depicted in GOES-16 visibile satellite imagery bridging over the Gulf of Mexico. Meanwhile surface analysis places an elongated area of high pressure over the eastern CONUS, including the Florida Peninsula, leading to gentle to moderate northeasterly winds for the Keys.
Upper level low is currently over western North Dakota with wrap around moisture bring snow over most of NE Montana early this morning. While the low will move to the east today, the wrap around moisture will remain over the forecast area.
Meanwhile, cirrostratus clouds are rounding around a firmly planted upper-level ridge centered over the Gulf of Mexico.
Although, the exception will be morning low being warmer than the past few nights thanks to increased insulation.
There may also be some storms closer to our northern border along the cold front that may need watching. dry conditions and another above normal temperature day is forecast, but with 850mb temps 3-5C cooler than today expect highs to be slightly lower.
506 PM CST Thu Feb 8 2024 (This afternoon through Friday night) On the backside of the upper trough that provided yesterday's Pacific front and winds, southwesterly flow aloft has been established and will persist throughout the short term.
519 PM CST Thu Feb 8 2024 - Light freezing rain will continue to pose minor to moderate impacts this afternoon due to potential power outages and slick travel conditions. - Freezing rain and rain will transition to snow through the afternoon. Freezing rain continues to be reported in some locations in this area. This is increasing our confidence in approaching freezing precipitation eastward. The primary question over the next several hours will be how far east freezing rain will spread and if refreezing surfaces increase impact levels on top of the expected accumulating snow. Impacts will significantly diminish after noon tomorrow, giving way to cooler temperatures with highs in the 20s.
Little to no snow accumulations are expected for most of the mountain areas, however some of the higher peaks may see up to an inch or so.
707 PM EST Thu Feb 8 2024 Low pressure tracking well northwest of the Ohio Valley will bring a low chance of shower activity tonight, with any rain being relatively light and inconsequential.
Cooler conditions will follow for early/mid week. This regime is one of moisture return and increasing southerly flow through the lower atmosphere. Warmer conditions and more clouds is the expectation and we've seen that today.
Snow returns to the area overnight tonight as a weak cold front pushes through the area. Expect tranquil weather over the weekend as upper level high pressure moves overhead. As these two features merge, a weak cold front will slide in from the north overnight tonight and early tomorrow morning, which will bring a round of mostly light snow as this trio of systems pushes through. Beyond this weak system tomorrow, the weekend should be rather quiet and slightly warmer as an upper level ridge builds into the area. With temperatures a few degrees above freezing with increasing sunshine, we will likely see roads melt out quite efficiently as the snowpack settles a little bit.
Several upper level disturbances and a cold front will result in an unsettled weather pattern beginning this evening.
258 PM MST Thu Feb 8 2024 Snow returns to the area overnight tonight as a weak cold front pushes through the area. Expect tranquil weather over the weekend as upper level high pressure moves overhead. As these two features merge, a weak cold front will slide in from the north overnight tonight and early tomorrow morning, which will bring a round of mostly light snow as this trio of systems pushes through. Beyond this weak system tomorrow, the weekend should be rather quiet and slightly warmer as an upper level ridge builds into the area. With temperatures a few degrees above freezing with increasing sunshine, we will likely see roads melt out quite efficiently as the snowpack settles a little bit.
Today: Water vapor imagery this afternoon continues to show the front side of the broad trough transitioning toward the northern Great Lakes region, with a strong jet stretching from Baja California towards the Ohio River Valley. Slightly behind the cold front to the east of the area, showers were able to overcome the dry air below and get a hundredth of moisture to a few locations, Omaha included. Friday and Beyond: For Friday cooler conditions are forecast with the area finding itself deeper within the main trough and behind the cold front. areas along and south of Interstate 80 could see additional sprinkles and maybe a few snowflakes with the relatively shallow in the low levels that would try and melt them.
516 PM CST Thu Feb 8 2024 Several upper level disturbances and a cold front will result in an unsettled weather pattern beginning this evening.
Dense fog probabilities are slowly increasing for the overnight hours from the northwest to the southeast focusing on the Highway 99 corridor.
At the surface, low pressure was over Minnesota with a boundary southward along Interstate 35. From Oklahoma southward, it is essentially a dry line, with the actual cold front back in the Texas Panhandle.
Glorious warmth is returning to the local area as narrow high amplitude upper ridging from the S Gulf extends over the Eastern Seaboard. Bermuda high pressure at the surface is producing easterly low level flow bringing moisture over the FL Peninsula. The Sunshine State is remaining solidly under the ridge that is dominating the weather pattern across the eastern U.
RW (This afternoon through Friday) High pressure ridge currently stretches from the Delmarva Peninsula back through northeast GA. The ridge will move offshore tonight as a frontal boundary approaches from the north and west. Not confident on exactly how far south the boundary will make it into GA, so the highest pops should remain along the NC/TN/GA border.