Aikyam-Lab/Synoptic-Bench huggingface dataset:
253 PM CST Wed Feb 24 2021 Cooler temperatures today thanks to a cold front that moved through the cwa this morning. Tonight and Thursday: Dry and cooler with generally partly cloudy skies. Lows in the lower 20s at most locations, but a few spots may dip into the upper teens in our far north.
402 PM MST Wed Feb 24 2021 The midlevel trough continues to sweep southward across the state this afternoon, stirring up some streamer snow showers around KBYG and near South Pass. Weak ridging tomorrow will bring a brief day of tranquil weather, before the next in a series of midlevel waves arrives.
Cold front working its way through the mid state this evening, and current obs have the front through most of the northwest half of the area. Expect cooler temps during the day Thursday but right around seasonal normals in the mid to upper 50s.
Temperatures overachieved a bit in a good way (warmer) with temperatures getting into the 50s and 60s and pushing to near 70 along the MO/AR border south-southeast of KUNO.
Accumulations should be relatively light for any of these showers, but a quick inch or so of snow is possible for for the foothills, as well as the higher hills around Bighorn County. High pressure quickly builds over Yellowstone National Park and Western Idaho tonight and tightens the pressure gradient over the mountains and foothills southwest-west of Billings, which bounces us right back to strong gap winds for the favorable areas around there, including Livingston, Big Timber, and Harlowton.
556 PM CST Wed Feb 24 2021 (This evening through Thursday) Sunny and a little cooler behind the cold front, with highs in the 60s and 70s. Cooler across Oklahoma and thats the air mass settling into West Central Texas tomorrow. Models are forecasting increasing low cloudiness by sunrise tomorrow morning as a warm and more moist air mass runs up and over this cooler mass settling into the area.
713 PM EST Wed Feb 24 2021 High pressure over the area today will move offshore and away from the region tonight as a weak cold front approaches from the north.
This morning's guidance has the trough moving into the Four Corners region tonight. The trough axis is expected to move over the Tri-State area Thursday afternoon. At the surface, an area of high pressure currently positioned over the High Plains is expected to continue expanding east across the Great Plains through late Thursday afternoon. Around midnight tonight, the Tri-State area will begin to see an increase in 850 mb moisture from west to east as an area of low pressure associated with the trough moves along the Colorado-New Mexico border. The highest amounts of snow are expected over favored upslope areas near the Palmer Divide and extending eastward. Thursday is expected to be slightly cooler, especially over the western half of the CWA.
/issued 241 PM CST Wed Feb 24 2021/ Temperatures today are noticeably cooler than yesterday for all but far southern zones, as a cold front continues to slowly sag southward across the region. Cold advection in the wake of the front will make for a colder night tonight, especially across portions of Lea county and the northern Permian Basin, where lows will dip below freezing, with lows in the mid 30s and 40s expected for most of the remainder of the area. The best chance for precipitation will be across the eastern Permian Basin, Lower Trans Pecos, and Stockton Plateau, and given precipitation looks to come to an end before temperatures have a chance to fall below freezing late Thursday night, only light rain is expected.
Ridge will continue to build into the Pacific Northwest with chinook developing across the northern Rockies on Thursday.
305 PM CST Wed Feb 24 2021 Temperatures overachieved a bit in a good way (warmer) with temperatures getting into the 50s and 60s and pushing to near 70 along the MO/AR border south-southeast of KUNO.
High pressure building in on Thursday will provide dry weather through the end of the work week. Cool high pressure will build into the Ohio Valley on Thursday under rapid zonal flow.
855 PM CST Wed Feb 24 2021 (Issued 855 PM CST Wed Feb 24 2021) Skies have cleared across the area this evening, with high pressure nosing in from the northwest. Short term visibility guidance has been most focused on the low lying areas of far southern and south central Wisconsin, with some extension north across the greater Rock River valley, likely the result of overnight lows being a few degrees colder. With temps in the teens to low 20s, any dense freezing fog will have the potential to create a few slick spots.
The cold front over central Texas is expected to continue sagging slowly south tonight and move into the northern Brush Country to near Victoria before 12Z Thursday. Slightly cooler temperatures are expected north of the boundary while above normal temperatures will continue south of it. A short wave trough will move across the Four Corners region on Thursday and into Oklahoma/north Texas Thursday night.
145 PM PST Wed Feb 24 2021 High pressure building over the Great Basin will bring gusty Santa Ana winds to parts of San Bernardino and Orange Counties tonight through Thursday morning.
217 PM MST Wed Feb 24 2021 The midlevel trough continues to sweep southward across the state this afternoon, stirring up some streamer snow showers around KBYG and near South Pass. Weak ridging tomorrow will bring a brief day of tranquil weather, before the next in a series of midlevel waves arrives.
707 PM EST Wed Feb 24 2021 Showers will end with passage of a cold front this eve. High pressure will keep the region until rain chance returns for the weekend. A brief transition to snow is possible, especially over the ridges with frontal passage, but progression and lack of mixing depth will limit accumulation potential.
This afternoon, zonal flow was present across the Plains with a trough digging south over the Intermountain West. At the surface, high pressure has built into central Nebraska and northwestern Kansas with a tight pressure gradient keeping northerly winds strong through this afternoon. Highs today are about 20-25 degrees cooler than we saw yesterday, but are back near-normal topping out in the upper 40s. Mid and high clouds increase overnight ahead of the aforementioned trough as it continues to dig southeast near the Four Corners region.
401 PM EST Wed Feb 24 2021 Clouds will increase this evening as a cold front drops south across the area. Clouds will decrease again overnight into Thursday with cooler conditions tonight into Thursday night.
Gusty northerly winds will continue over coastal areas and in particular across the higher terrain of Lake County tonight. Pics from space depicting a strong upper ridge positioned over the NERN PAC and extending into the Gulf of Alaska while a broad area of troughing extends across northern Great Basin. Brisk NW flow aloft on the west side of the ridge is promoting large- scale subsidence, and ultimately dry weather over NRN CA in between those two features.
628 PM EST Wed Feb 24 2021 High pressure will slowly move offshore tonight. A weak cold front will cross the area from north to south on Thursday. Low pressure will impact the Southeast Coast into the weekend with unsettled weather. High pressure continues to shift offshore through tonight with continued clear skies and SW winds. Dry cold front enters the northern tier in the morning. Weak cold air advection and increasing cloud coverage associated with the front will limit highs in the north to the mid to upper 50s while the clearer southern areas will reach the low to mid 60s.
440 PM EST Wed Feb 24 2021 High pressure will slowly move offshore tonight. A weak cold front will cross the area from North to South on Thursday. Low pressure will impact the Southeast Coast into the weekend with unsettled weather. High pressure continues to shift offshore through tonight giving clear skies and SW winds of 10 to 15kts gusting to 20 kts and occasionally as high as 25 kts along the coast, with light winds inland. Dry cold front enters the northern tier in the morning. Weak cold air advection and increasing cloud coverage associated with the front will limit highs in the north to the mid to upper 50s while the clearer southern areas will reach the low to mid 60s.
It will be slightly cooler tonight through Thursday night.
Accumulations under an inch can be expected with the highest amounts around the Lake of the Woods region.
Cooler temperatures today thanks to a cold front that moved through the cwa this morning. Tonight and Thursday: Dry and cooler with generally partly cloudy skies. Lows in the lower 20s at most locations, but a few spots may dip into the upper teens in our far north.
A low pressure system moved from the Great Lakes to the northeast today, and its associated cold front exited Illinois earlier this afternoon. The best chance for clearing overnight will be northwest of the Illinois River valley, where lows are expected to be in the low 20s. A dry, pleasant day is on tap tomorrow, with near normal temps and lighter winds as high pressure builds.
Due to the dry airmass, clear skies, and calm winds (especially across the Nature Coast), have opted to nudge low temps several degrees cooler to align closer to MOS guidance as all these things indicate a strong radiational cooling night. High pressure over the area will keep warm, dry, and otherwise very pleasant boating conditions for the next several days. High pressure over the northeast Gulf of Mexico is helping to filter in some drier air into the area through tomorrow.
351 PM CST Wed Feb 24 2021 Expect chances for light rain showers tonight across the area as a cold front approaches and moves through the region, then stalls out down near the coast. Lows tonight will range from the lower 40s northwest to the middle 50s south.
332 PM CST Wed Feb 24 2021 This afternoon, zonal flow was present across the Plains with a trough digging south over the Intermountain West. At the surface, high pressure has built into central Nebraska and northwestern Kansas with a tight pressure gradient keeping northerly winds strong through this afternoon. Highs today are about 20-25 degrees cooler than we saw yesterday, but are back near-normal topping out in the upper 40s. Mid and high clouds increase overnight ahead of the aforementioned trough as it continues to dig southeast near the Four Corners region.
This morning's guidance has the trough moving into the Four Corners region tonight. The trough axis is expected to move over the Tri-State area Thursday afternoon. At the surface, an area of high pressure currently positioned over the High Plains is expected to continue expanding east across the Great Plains through late Thursday afternoon. Around midnight tonight, the Tri-State area will begin to see an increase in 850 mb moisture from west to east as an area of low pressure associated with the trough moves along the Colorado-New Mexico border. The highest amounts of snow are expected over favored upslope areas near the Palmer Divide and extending eastward. Thursday is expected to be slightly cooler, especially over the western half of the CWA. Will start the period with a broad upper trough across the Rockies and central plains.
A dry cold front will drop through the region tonight and Thursday bringing cooler temperatures and gusty northerly winds across southeast California and southwest Arizona.
538 PM CST Wed Feb 24 2021 After yet another pleasant day, northerly low-level flow will advect cooler air into region overnight.
532 PM CST Wed Feb 24 2021 H5 analysis this morning had High pressure anchored over the eastern Pacific off the coast of northern California. A ridge extended north into the Alaska Panhandle and sern Alaska. As of midday, current satellite imagery had the nrn Idaho trough now in srn Idaho and northern Nevada. Forecast soundings taken over northern Nebraska indicate a convective temp in the lower to middle 40s and we appear to be there as of early afternoon. Snow will be focused ahead of this trough and should remain off to the southwest of the forecast area. East of this trough, a tight surface gradient will develop.
314 PM CST There are no significant concerns for impactful weather through the middle of next work week, which takes us into March and the start of meteorological spring! Main item of note is the continued snow and ice melt as daytime temperatures above to well above freezing will be prevalent.
A weak trough just offshore initially with light NWRLY winds over land will push further away or become diffuse allowing these northerly winds to become NERLY along the coast in the afternoon with a very slow push inland through sunset. Weak high pressure resides across the area. Weak high pressure influence continues with generally light pressure gradient in place.
Low temperatures will fall into the low/mid 40s. High pressure ridging will continue to bring clear skies and slightly above average temperatures today, with high temps this afternoon reaching into the upper 70s and lower 80s. High pressure axis will be south of the forecast area through tonight and into Thursday morning with overnight low temperatures ranging between the mid and upper 40s.
/Tonight through Tomorrow/ By tonight, the weak elevated cold front will begin dropping south across the region, only providing a brief shot at some showers in a few locations. By tomorrow night, things will have cooled down slightly behind the front, with lows in the low 40s north, and upper 40s south.
This will lead to a renewed round of precipitation across the lower MS valley and portions of the TN Valley and southeast late in the period. A colder and drier airmass will move in behind the front as high pressure builds in. Otherwise, an approaching cold front will bring and increase in clouds during the first 6 hours of the period with a threat of showers generally after 21Z in the northwest, and from 0Z to 6Z further southeast.
315 PM CST Wed Feb 24 2021 H5 analysis this morning had High pressure anchored over the eastern Pacific off the coast of northern California. A ridge extended north into the Alaska Panhandle and sern Alaska. As of midday, current satellite imagery had the nrn Idaho trough now in srn Idaho and northern Nevada. Forecast soundings taken over northern Nebraska indicate a convective temp in the lower to middle 40s and we appear to be there as of early afternoon. Snow will be focused ahead of this trough and should remain off to the southwest of the forecast area. East of this trough, a tight surface gradient will develop.
305 PM CST Wed Feb 24 2021 A weak cold front will cross the area late tonight into Thursday morning. Temperatures will slowly cool off and overnight lows will be in the upper 30s in NE AR to the low 50s in NE MS.
930 PM EST Wed Feb 24 2021 Cold front currently stretches from the eastern Great Lakes back through the Lower Mississippi River Valley. Temps were also running a bit cooler than observed values and have repopulated the hourly values.
/Issued 234 PM CST Wed Feb 24 2021/ Following passage of a cold front this morning, our temperatures this afternoon have dipped back down to near average for this time of year with temperatures currently in the mid 50s to mid 60s across the region. Lows tonight be cool tonight as many locations will drop below freezing by tomorrow morning under clear skies. Scattered showers will also spread into northeast Oklahoma and northwest Arkansas late Thursday night, and temperature profiles may be cold enough for a mix of snow and rain to develop, especially across some of the higher elevations of northwest Arkansas.
/issued 305 PM CST Wed Feb 24 2021/ A weak cold front will cross the area late tonight into Thursday morning. Temperatures will slowly cool off and overnight lows will be in the upper 30s in NE AR to the low 50s in NE MS.
929 PM EST Wed Feb 24 2021 High pressure will slowly move offshore tonight. A weak cold front will cross the area from north to south on Thursday. Low pressure will impact the Southeast Coast into the weekend with unsettled weather. High pressure continues to shift offshore through tonight with continued clear skies and SW winds. Dry cold front enters the northern tier in the morning. Weak cold air advection and increasing cloud coverage associated with the front will limit highs in the north to the mid to upper 50s while the clearer southern areas will reach the low to mid 60s.
The incoming cold front doesn't arrive until late tonight, but given cloud cover and well mixed low level air mass do not expect temperatures to move much from current levels. BW Chattanooga Airport, TN 64 40 52 46 63 / 0 40 70 60 40 Knoxville McGhee Tyson Airport, TN 57 38 50 45 61 / 0 30 60 60 50 Oak Ridge, TN 58 38 50 44 61 / 0 20 60 60 50 Tri Cities Airport, TN 55 34 49 39 59 / 0 20 60 60 50.
This ridging will favor light winds and clear skies, with favorable radiational cooling leading to a cool start to the morning today, with patchy fog possible around sunrise. This stacked ridging will favor broad subsidence, with stable conditions leading to clear skies and warming temperatures.
Have gone with more clearing in the sky forecast, and subsequently have lowered the low temps slightly. The pressure gradient and pressure rises have weakened as the cold front from this morning advances farther away to the southeast. A low pressure system moved from the Great Lakes to the northeast today, and its associated cold front exited Illinois earlier this afternoon. The best chance for clearing overnight will be northwest of the Illinois River valley, where lows are expected to be in the low 20s. A dry, pleasant day is on tap tomorrow, with near normal temps and lighter winds as high pressure builds.
1121 PM CST Wed Feb 24 2021 After yet another pleasant day, northerly low-level flow will advect cooler air into region overnight. Another upper-level trough will approach the Midwest late Friday, leading to increasing mid to low- level WAA as well as some southerly moisture transport into the area.
1047 PM CST Wed Feb 24 2021 After yet another pleasant day, northerly low-level flow will advect cooler air into region overnight. Another upper-level trough will approach the Midwest late Friday, leading to increasing mid to low- level WAA as well as some southerly moisture transport into the area.
High pressure building in on Thursday will provide dry weather through the end of the work week. Cool high pressure will build into the Ohio Valley on Thursday under rapid zonal flow. Better chance of rain will occur Friday night as a secondary short wave follows in the path of the daytime system while another impulse moves through the lower Great Lakes. Then a northern stream trough passing across the Great Lakes will flatten the pattern, at least temporarily.
1044 PM CST Wed Feb 24 2021 H5 analysis this morning had High pressure anchored over the eastern Pacific off the coast of northern California. A ridge extended north into the Alaska Panhandle and sern Alaska. As of midday, current satellite imagery had the nrn Idaho trough now in srn Idaho and northern Nevada. Forecast soundings taken over northern Nebraska indicate a convective temp in the lower to middle 40s and we appear to be there as of early afternoon. Snow will be focused ahead of this trough and should remain off to the southwest of the forecast area. East of this trough, a tight surface gradient will develop.
256 AM CST Thu Feb 25 2021 Our cold front that moved through yesterday morning has stalled just south of Hwy 90, allowing temperatures along the Rio Grande to reach the 80s today. Much cooler temperatures will be seen everywhere else this afternoon, with low 40s mostly in the Permian Basin and 50s along the Trans Pecos. Any precipitation will be very light and will move off to the east by early Friday morning before temperatures drop below freezing. As the trough moves off to the E, SW flow aloft will return and quickly warm us back up to the 60s and 70s on Friday.
Temperatures are expected to be in the 30s today, and few locations may even sneak into the low 40s. Tonight, temperatures dip below freezing into the teens to low 20s. Strong southerly flow ahead of an approaching upper-level long-wave trough will bring moisture into the region as afternoon wind gusts peak around 35 mph across portions of northeast Iowa, southeast Minnesota, and into west central Wisconsin. This would lead to a brief period of freezing drizzle before the precipitation completely ends. With afternoon temperatures Friday afternoon increasing into the upper 30s to low 40s then dipping to near freezing as the precipitation moves into the region, any daytime heat then retained within the ground surface would limit the amount of ice to accumulate even with air temperatures dipping to near freezing.
Thursday night-Friday: Upper trough moves through Thursday night. On Friday will get a brief upper ridging followed quickly by approaching trough.
/Issued 930 PM EST Wed Feb 24 2021/ Cold front currently stretches from the eastern Great Lakes back through the Lower Mississippi River Valley. Temps were also running a bit cooler than observed values and have repopulated the hourly values. 41 Moisture is reintroduced to the area late Thursday and into Friday out ahead of a cold front.
High pressure centered over the Ohio Valley Thursday shifts east into the northeastern U. Overnight lows have been adjusted upwards slightly owing to overall temps currently trending warmer than modeled by two to three degrees. Temperatures also have been adjusted upwards for the highs Thursday afternoon. Forecast models are rather bullish on the highs despite broken to overcast cloud cover. Given the very warm start during the morning, it seems reasonable to somewhat follow suit with the highs for Thursday. Afternoon highs will generally be in the lower to middle 70's, with warmest temperatures along and southeast of the I-65 corridor where some upper 70's seem plausible. Thursday night features similar temperatures, perhaps a touch cooler with lows in the lower to middle 50's over interior MS/AL counties and middle to upper 50's elsewhere.
A cold trough will continue through southern Utah before exiting the area tomorrow morning.
933 PM CST Wed Feb 24 2021 A cold front is moving through the region this evening. Winds will become northerly overnight as cooler air advects in. /issued 305 PM CST Wed Feb 24 2021/ A weak cold front will cross the area late tonight into Thursday morning. Temperatures will slowly cool off and overnight lows will be in the upper 30s in NE AR to the low 50s in NE MS. In the meantime a trough is digging in over the Desert Southwest and will move over the area on Friday bringing rain and possible thunderstorms. The cold front that moved through the area is expected to stall along the Gulf Coast. It then starts to lift back into the area as a warm front.
Winds calm as the high moves in and become light and variable lasting through the day Thursday. The high also ushers in cooler air limiting Thursday's highs to the mid-40s. Southerly winds push slightly warmer air into the region boosting highs to near 50F.
1117 PM EST Wed Feb 24 2021 Showers will end with passage of a cold front. High pressure will keep the region until rain chance returns for the weekend. Residing showers over the ridges of West Virginia may transition to snow over the next few hours; temps in Tucker county are lingering in the mid-30s. Seasonable temperature is expected Thursday, with a several degree moderation on Friday as high pressure builds. This will bring warmer temperature, but with rain chance.
High pressure ridging will continue to bring clear skies and slightly above average temperatures today, with high temps this afternoon reaching into the upper 70s and lower 80s. High pressure axis will be south of the forecast area through tonight and into Thursday morning with overnight low temperatures ranging between the mid and upper 40s. High pressure weather conditions will carry over into Thursday with above average daily high temperatures continuing through into the end of the week as a weak surface front moves mostly across the north of the forecast area. Overnight low temperatures will be in the 50s during this period with high temperatures reaching into the upper 70s and even into the lower 80s for areas south of the I-10 corridor.