Aikyam-Lab/Synoptic-Bench huggingface dataset:
1031 AM EST Wed Feb 9 2022 A weak cold front will push through today, followed by a disturbance tonight, providing a chance for light precipitation. Drier and colder air will arrive Thursday with high pressure.
1028 AM MST Wed Feb 9 2022 Northwest flow aloft prevailed between a upper ridge axis off the Pacific Coast and upper trough axis over the MS River Valley. The first trough moving through MT this morning will advance quickly southeast across WY and Northern/Central Plains this afternoon and early evening. Precipitation associated with this trough will be light rain and snow spreading northwest to southeast. The higher peaks of the Snowy Range could measure 1-3 inches of snow, with lesser amounts elsewhere.
306 PM EST Wed Feb 9 2022 A cold front has been sauntering its way across the Florida Keys all day. Really thought we could break out of the lower deck this afternoon and allow for some temperature recovery. Said cold front will "clear" the island chain by this evening with rain chance gradually decreasing.
326 PM EST Wed Feb 9 2022 Latest analysis shows a cold front approaching the area from the W/NW this afternoon, associated with a low pressure system over the upper great lakes. Overnight lows will be in the lower 30s. On Thursday another wave will pass through the area, along with a decaying cold front. High temps will be cooler, closer to seasonal norms ranging from the middle 40s to around 50.
Several impulses will ride the eastern side of the western NOAM ridge wavering a sfc front and supporting bouts of rain and snow showers. Stalled frontal boundary will back quickly east Thurs, with much warmer conds returning ahead of the next strong impulse. The next upper trough and cold front will push into the region Thur night, with a good chance of rain to snow for much of the area, esp the western third.
1250 PM EST Wed Feb 09 2022 High pressure will be in place today and tonight. Low pressure over southeastern Canada will favor development of a lee trough over western NC tonight and tomorrow, resulting in broad southwest flow.
In fact, we should see nearly the same temps from last night again tonight, with possibly a few degrees warmer in some locations as overnight lows will fall into the 30s again areawide. This trough will swing through the region on Thursday, bringing this cloud cover as far south as the Interstate 20 corridor, before mostly clear skies return by Thursday evening.
Temperatures will continue to be above normal through the remainder of the week as a ridge of high pressure remains along the west coast. Expecting gusts to be similar to today, with the highest gusts of 25 to 35 MPH down the Colorado River Valley Thursday afternoon.
A weekend cold front will return seasonably cold temperature to the region for the start of the new week. Warm advection in advance of an encroaching longwave trough/cold front is on track to drive high temperature nearly 10 degrees above the avg today (38F at Pit).
/EC/ Tomorrow night through Wednesday: The forecast period starts off with predominately zonal flow across the Lower Mississippi Valley in the base of a mean longwave trough extending from the Hudson Bay into the Ohio Valley.
High pressure will settle overhead tonight with winds weakening. Similar to past days this week, dry low levels and a lack of upstream cold air will result in an increase in northerly winds being the only sensible weather impact from this front along with high temperatures just a bit cooler than today. Upper level ridging will remain in place across the western CONUS through the weekend.
230 PM EST Wed Feb 09 2022 High pressure will be in place today and tonight. Low pressure over southeastern Canada will favor development of a lee trough over western NC tonight and tomorrow, resulting in broad southwest flow.
333 PM EST Wed Feb 9 2022 A weak cold front will swing through the region tonight which may offer scattered precipitation.
359 PM EST Wed Feb 9 2022 Light but steady snow showers continue to drift across the central portions of the UP this afternoon as a cold front overspreads the forecast area. The best frontogenetical forcing in the mid levels at this time though is a tad ahead of the cold front over the eastern counties, which could see a quick 1 to 2 inches of accumulation through this evening.
312 PM EST Wed Feb 9 2022 A moisture starved cold front arrives, passes through, and exits BY early Thursday morning.
Look for snow to impact the area through around midday, with a change over to freezing rain and rain during the afternoon, especially from the Red River Valley westward.
/issued 152 PM CST Wed Feb 9 2022/ SHORT TERM (Now through Thursday Night): High pressure remains firmly in control across Deep South Texas with light winds and generally clear skies into this evening.
Even with the trough, temperatures right now remain around 10 degrees above average across north-central Arizona. Winds look to ease a bit for Thursday afternoon before diminishing by Thursday night as the axis of the high pressure ridge migrates closer to the California coast line.
617 PM EST Wed Feb 9 2022 A weak cold front will swing through the region tonight which may offer scattered precipitation.
(Previous Discussion) Weak high pressure will build in from the northern Gulf of Mexico as the mid-level trough departs. Across the rest of the area, lows will be from around 40 to the lower 40s through the interior, in the low to mid 40s in the Orlando metro and coastal areas, and around 50 in coastal Martin County and the barrier islands. A slight onshore wind may help keep coastal areas a bit warmer than forecast. (Previous Discussion) A clear, dry, pleasant day as weak high pressure tracks eastward across north Florida.
Favored higher peaks may see 1 to 2 inches and any showers that do make it out over the lower elevations should produce little to no accumulation. Cloudy skies overnight should moderate low temperatures in the high country again. Lows should be a few degrees warmer across the area. Expect clearing to partly cloudy skies by morning and high temperatures to warm a few degrees more tomorrow as well, moreso across the lower elevations. It doesn't look like much of a high wind threat, but there will likely be stronger winds at least over the higher east slopes and possibly the foothills wave hot spots.
The Pacific ridge continues to build into NorCal today with short wave troughs passing to our east. We did see some high clouds spinning around the ridge earlier today but those are pushing out of the area and we can expect clear skies as we head into the overnight. This building ridge will be impressive and we will see EFI (Extreme Forecast Index) values of 1.
High pressure will remain over the region into the weekend and the air mass will gradually dry.
A weak backdoor cold front will press through the plains overnight, bringing brief breezes to the area.
727 PM EST Wed Feb 9 2022 Light but steady snow showers continue to drift across the central portions of the UP this afternoon as a cold front overspreads the forecast area. The best frontogenetical forcing in the mid levels at this time though is a tad ahead of the cold front over the eastern counties, which could see a quick 1 to 2 inches of accumulation through this evening.
Across the Four Corners, the gradient is enough to generate some wind gusts in the 20s at Cortez and Telluride with relative humidity in the 20s in the lower central and southern valleys. Thursday proves to be mostly dry with temperatures similar to last few days, hovering near to slightly above normal for the snow free areas and a bit cooler than normal for areas with snow cover. High pressure continues along the West Coast pushing the storm track to the east along the Front Range.
High pressure returns for the remainder of the short term. Lower elevations should see stratus redevelop overnight, with some fog/freezing fog. Temps look to be around normal, but slightly warmer in portions of the central mountains.
345 PM MST Wed Feb 9 2022 Brisk northwest winds across the western parts of the state really did a number on the localized cold pools, with areas like Jackson and Bondurant and the Upper Green River valley getting above freezing by midmorning. There are a few light snow showers in the higher elevations of YNP right now, but the wave causing this snow is moving out fast. Northwest flow continues across the state, between ridging along the west coast and the longwave trough stretching across the eastern 2/3 of the US.
543 PM CST Wed Feb 9 2022 Western flank of cold front dropping southward through the area as evident with stratocu field behind it. Surface winds turn back out of the southwest for Thursday as a warm front pushes back eastward through the FA. On the edge of the low/mid level WAA, will likely see a band of precipitation push from west to east from late morning into the early evening hours.
At this point, we will forecast lows to reach the 32-34 degree range for most of our outlying communities, with temperatures a few degrees warmer in urban areas and locations in close proximity to large bodies of water. If skies temporarily clear during the early morning hours, patchy fog/freezing fog will also be possible in a few of our normally fog-prone locations. Latest short range model guidance suggests that winds aloft will back to the west once again tomorrow, in advance of a positively- sheared mid-level trough that will organize across the central Plains later tonight. Although synoptic scale ascent will be very weak, we will likely experience a more notable increase in mid/high-level clouds tomorrow afternoon, which could potentially keep high temperatures 1-3 degrees cooler than values observed today.
613 PM CST Wed Feb 9 2022 For the ArkLaTex terminals, just a few mid or high clouds expected as weak high pressure builds across the region tonight. In fact, we should see nearly the same temps from last night again tonight, with possibly a few degrees warmer in some locations as overnight lows will fall into the 30s again areawide. This trough will swing through the region on Thursday, bringing this cloud cover as far south as the Interstate 20 corridor, before mostly clear skies return by Thursday evening.
Tonight through Thursday morning, the warm ridge of high pressure from the SW surges back over our area again, setting us up for a much warmer-than-average day for temperatures. Later Thursday afternoon and evening, a cold front will sweep southeastward from the Canadian Rockies.
High pressure will bring dry conditions with a warming trend the rest of the week. The upper level ridge is shifting more eastward to allow warmer temperatures and clear skies through the weekend.
251 PM MST Wed Feb 9 2022 Northwest flow aloft will prevail over the region, and the upper level ridge remains anchored off the Pacific coast. Have issued a Rangeland Fire Danger Statement for lower elevations, aside from eastern most zones, which should see slightly cooler temps, higher humidities, and some recent showers. A backdoor cold front will slide into the region Thursday evening switching winds Northwest, and bringing rain and snow across the region.
218 PM MST Wed Feb 9 2022 Strong high pressure aloft situated along the West Coast will result in mostly clear skies and well above normal temperatures at least through the weekend.
Light winds until the passage of a cold front after sunrise Thursday when winds shift to the north and increase to 15 kts or above. High pressure will settle overhead tonight with winds weakening. Similar to past days this week, dry low levels and a lack of upstream cold air will result in an increase in northerly winds being the only sensible weather impact from this front along with high temperatures just a bit cooler than today. Upper level ridging will remain in place across the western CONUS through the weekend.
233 PM PST Wed Feb 9 2022 A strong ridge remains locked over the eastern Pacific, continuing our dry and mild conditions. For the remainder of this week: * Strengthening high pressure just off the West Coast will maintain mostly clear skies, chilly mornings and warm afternoons. Today, elevations above 7,000 feet will see gusts 45-60 mph, before ridge winds increase through early Thursday morning as high as 80 mph.
900 PM CST Wed Feb 9 2022 Clear skies prevail once again, as high pressure remains centered along the Gulf Coast. With flow being more westerly tonight, expect lows to only drop into the low 30s. Latest short range model guidance suggests that winds aloft will back to the west once again tomorrow, in advance of a positively- sheared mid-level trough that will organize across the central Plains later tonight. Although synoptic scale ascent will be very weak, we will likely experience a more notable increase in mid/high-level clouds tomorrow afternoon, which could potentially keep high temperatures 1-3 degrees cooler than values observed today.
It's opened the door to a brief taste of cooler air to settle across western Iowa and eastern Nebraska today.
As high pressure moves over the region, winds may become variable at times. /EC/ Tomorrow night through Wednesday: The forecast period starts off with predominately zonal flow across the Lower Mississippi Valley in the base of a mean longwave trough extending from the Hudson Bay into the Ohio Valley.
428 PM EST Wed Feb 9 2022 Latest analysis shows a cold front approaching the area from the W/NW this afternoon, associated with a low pressure system over the upper great lakes. Overnight lows will be in the lower 30s. On Thursday another wave will pass through the area, along with a decaying cold front. High temps will be cooler, closer to seasonal norms ranging from the middle 40s to around 50.
High pressure will continue to bring quiet weather to the region including above normal temperatures, light winds and mostly clear skies through the weekend.
711 PM EST Wed Feb 9 2022 A moisture starved cold front arrives, passes through, and exits BY early Thursday morning.
309 PM CST Wed Feb 9 2022 At the surface, a backdoor cold front is now draped across the western third of the state. The stalled out boundary will then transition to a warm front and move east across the state overnight and through the day on Thursday. At the upper levels, the ridge to our west tries to flatten as the next low/Clipper comes down and skirts the area to the north. A cold front will extend to the west of the low and approach the International Border by the late afternoon or evening hours. There has a been a bit of a trend to slow down the approach of the cold front and widespread cloud cover could inhibit mixing. If clouds end up being much less than expected, the current forecast could be on the low side and vice versa.
/issued 916 PM CST Wed Feb 9 2022/ Weak high pressure will move quickly into the region overnight. A weak Pacific cold front is moving across the region this afternoon, shifting winds from the west with gusts up to 20 mph at times.
Temperatures will continue to be above normal through the remainder of the week as a ridge of high pressure remains along the west coast.
A cold front currently extends from the Thumb southwest to near Chicago. Light snow along/ahead of the front has diminished somewhat behind the front, but likely won't end until after the upper trough passes through mid morning. This afternoon will be dry as weak ridging builds in ahead of the next system.
A weak frontal boundary is currently located across KY, and will push slowly southward this morning as its orientation is nearly parallel to the mid/upper westerly flow at the base of a broad trough. The impact of this front/trough will be minimal, with only some morning clouds in northern sections, and highs today a couple degrees below yesterday. Still, temps will be above normal with highs in the lower 60s south to lower/mid 50s north.
1052 PM CST Wed Feb 9 2022 Western flank of cold front dropping southward through the area as evident with stratocu field behind it. Surface winds turn back out of the southwest for Thursday as a warm front pushes back eastward through the FA. On the edge of the low/mid level WAA, will likely see a band of precipitation push from west to east from late morning into the early evening hours.
A weak backdoor cold front will continue to slide down the plains through the morning hours, producing brief breezes.
957 PM MST Wed Feb 9 2022 Brisk northwest winds across the western parts of the state really did a number on the localized cold pools, with areas like Jackson and Bondurant and the Upper Green River valley getting above freezing by midmorning. There are a few light snow showers in the higher elevations of YNP right now, but the wave causing this snow is moving out fast. Northwest flow continues across the state, between ridging along the west coast and the longwave trough stretching across the eastern 2/3 of the US.
For the rest of the night and early morning, incoming ridge axis and increasing dry air should result in LES slowly tapering off.
300 AM EST Thu Feb 10 2022 Water vapor channel imagery reveals a rather complex synoptic flow pattern with blocking in the west and deep low in the Arctic latitudes. Equatorward of this low are numerous fast-moving perturbations within the cyclic flow. Temperatures yesterday were considerably warmer than blended guidance possibly at least partially due to overzealous influence from model snow cover, which is waning across the area per latest observations and satellite imagery.
Even though skies will remain mostly clear, and winds will predominantly be calm overnight tonight, temperatures are not expected to drop to near freezing again, but remain in the low 40s to upper 30s areawide.
Clear skies prevail once again, as high pressure remains centered along the Gulf Coast. With flow being more westerly tonight, expect lows to only drop into the low 30s. Latest short range model guidance suggests that winds aloft will back to the west once again tomorrow, in advance of a positively- sheared mid-level trough that will organize across the central Plains later tonight. Although synoptic scale ascent will be very weak, we will likely experience a more notable increase in mid/high-level clouds tomorrow afternoon, which could potentially keep high temperatures 1-3 degrees cooler than values observed today.
355 AM EST Thu Feb 10 2022 Dry short term period expected as Georgia remains positioned at the base of the longwave trough.
Winds will become more westerly today with some scattered cloud cover moving across too as an upper trough swings across the area, but temps will only be slightly cooler than yesterday with highs in the mid 50s to around 60.
We are generally in good shape with surface ridging, a mostly clear sky and light to near calm winds. Pleasant conditions are expected to continue this afternoon with sunny skies and temperatures into the lower to mid 60s. Meanwhile, surface ridging is centered along the Gulf Coast. Deep westerly flow will support further gradual warming into tomorrow while a decaying cold front stalls well to our north. Overnight lows will still fall into the 30s, but will be a few degrees warmer than last night as will also be the case with tomorrow's highs. The airmass remains quite dry, so even with weak troughing, skies will remain mostly clear with occasional cirrus by tomorrow afternoon.
A weeks-end cold front will return widespread precipitation to the region as well as more seasonable temperature for the start of the new week.
High pressure will build over the Gulf of Mexico and over the local waters on Thursday.
The airmass will be slightly cooler today relative to yesterday, but not significantly.
920 PM CST Wed Feb 9 2022 A cold front will arrive from the north later tonight/Thursday morning, and will be followed by a warm front from the Plains later in the day.
916 PM CST Wed Feb 9 2022 Weak high pressure will move quickly into the region overnight. A weak Pacific cold front is moving across the region this afternoon, shifting winds from the west with gusts up to 20 mph at times.
1217 AM EST Thu Feb 10 2022 Light but steady snow showers continue to drift across the central portions of the UP this afternoon as a cold front overspreads the forecast area. The best frontogenetical forcing in the mid levels at this time though is a tad ahead of the cold front over the eastern counties, which could see a quick 1 to 2 inches of accumulation through this evening.
A positively-tilted upper trough will track south and east across the forecast area Thursday. The axis of the upper trough will push through the Panhandles around 21Z Thursday or so which will allow for the skies to clear.
Another quiet evening is in store as water vapor imagery shows an expansive ridge of high pressure in the mid and upper levels centered over the far NE Pacific. Meanwhile, in the lower levels, high pressure also remains the dominant influence, with weak troughing noted east of the Cascade Crest. Overnight tonight and into Thursday morning, the mid/upper level ridge center will slowly meander towards the CA/OR Coast, providing slightly better influence over the W WA. With high pressure influence then both at the sfc and aloft, clear skies combined with light winds should provide for ample radiational cooling and widespread low elevation fog development. High pressure will remain over the region into the weekend and the air mass will gradually dry.
Evening update simply focused on adjusting temperatures and dewpoints to better reflect most recent observations, resulting in slightly warmer temperatures and slightly lower dewpoints. At the surface, a cold front was located to our west this afternoon with strong southwesterly surface winds across the Tennessee valley. The cold front is forecast to move through the region during the early morning hours on Thursday. High pressure builds into western TN and northern AL/MS afterwards so winds will remain out of the west and southwest on Thursday, with another mostly sunny day expected and temperatures around or slightly above normal once again.
It shouldn't move much more today as it hits mid-level ridging anchored to the southwest of Arkansas. Tonight and into Friday, what's left of the boundary will move back northward a bit ahead of another approaching cold front.
In the wake of this ridge, WAA will quickly get underway allowing temperatures to rise quickly through the afternoon with highs reaching the mid 40s to lower 50s. Thursday night a upper level trough will dig into the western Great Lakes forcing a cold front into the area. CAA will arrive Friday night behind the departing cold front and ahead of a strong Canadian high building into the northern Plains.
For the rest of the night and early morning, incoming ridge axis and increasing dry air should result in LES slowly tapering off. Upper air pattern consists of a 500 mb ridge on the west coast and a trough over the lower Great Lakes this morning.
8" through tomorrow, as well as warmer air advecting into South Texas. With winds shifting from the north this morning and an increase in cloud cover, temperatures today are expected to be a couple of degrees cooler than yesterday. Temperatures tonight are expected to range within the lower 40s and lower 50s as some cloud cover could linger into the overnight hours.
Today will still be slightly cooler than the seasonal average, with highs in the lower 70s under partly to mostly cloudy skies. With the onshore flow and increased cloud cover, lows will be a few degrees warmer than the past couple of nights and only drop into the mid 50s across the Valley to the upper 40s across the northern ranchlands tonight. Of course, temperatures will be influenced by any shower activity, but highs should be comparable to today and reach the lower to mid 70s under mostly cloudy skies.