Aikyam-Lab/Synoptic-Bench huggingface dataset:
Stable and drier conditions under a ridge of high pressure have led to a decrease in cloud cover overnight, allowing temperatures to cool and promoting the development of stratus and fog in parts of north-central Idaho and western Montana. This ridge is expected to weaken today as a trough approaches from the west. Model guidance consistently indicates that the trough will split, with the primary low-pressure center moving southeast of the region.
Accumulations will be a dusting up to a half inch in the higher elevations, and mainly in areas where temperatures are near or below freezing. Much colder conditions are expected tonight with wind chills in the teens in many places and single digits in the higher elevations. This Evening/Tonight Currently this afternoon, a deep trough is moving over the area with a cold front having pushed off to our east. Westerly to northwesterly flow will persist through the night with recent CAA allowing for the area to drop well below freezing. Thursday and Thursday Night During the day on Thursday, troughing will remain in place overhead with high pressure set up across the area.
1036 PM CST Wed Dec 11 2024 - A surge of shallow cold air will result in cooler temperatures for Friday, especially in central Kansas.
238 AM CST Thu Dec 12 2024 - Warmer temperatures for southern Kansas with cooler readings expected over central Kansas today - Good chances for drizzle and rain showers to affect the eastern half of Kansas late Friday afternoon and Friday night.
Following the passage of the trough, we will be under zonal flow. Take extra caution this morning as any wet roadways or bridges may have black ice on them. Tonight's lows will still be cold for climatological norms, but will be a couple of degrees warmer than readings this morning.
900 PM PST Wed Dec 11 2024 Cooler conditions; gusty west winds in the mountains and deserts; and periods of light precipitation west of the mountains are expected Thursday afternoon and evening.
1253 AM EST Thu Dec 12 2024 Behind the cold front that pushed offshore last night, a much colder and drier air mass will dominate today, along with continued breezy conditions. High pressure returns into the weekend with gradually moderating temperatures.
518 AM CST Thu Dec 12 2024 - Slightly warmer today with increasing southwest winds this afternoon. (Today and tonight) Short wave upper level ridging will move overhead today followed quickly by falling heights and lee surface cyclogenesis ahead of a sharp trough moving across the Great Basin overnight tonight. Quite a bit of cirrus is already moving over the low-amplitude ridge, but the amount and thickness of that cirrus should peak this evening into the early morning hours before drier air on the south side of the Great Basin trough begins to move overhead. Slightly increased wind speeds overnight tonight in addition to the abundant cirrus should keep low temperatures on the warmer side of guidance in line with the NBM.
Temps have already dropped into the low to mid 30s areawide, with a few isolated upper 20s. This has resulted in many locations reporting freezing temps, so widespread frost will be likely. We will also see the return of southerly winds, as high pressure slides east of the region. Despite the cloud cover, the return of southerly winds will result in slightly warmer temps, with highs in the low to mid 60s this afternoon. Cloudy skies will remain on Friday, along with the warming trend, as southerly flow ramps up over the region in response to a strengthening lee-side cyclogenesis/closed upper trough in Eastern Colorado. /20/ (Friday Night through Thursday) By Friday night, the aforementioned upper trough will start to eject into the Central Plains, driving a cool front towards the region.
627 AM EST Thu Dec 12 2024 Drier weather is expected today in the wake of a strong cold front.
245 AM MST Thu Dec 12 2024 - Freezing fog, possibly dense, this morning along Highway 25. - Wide range of temperatures today depending on what side of the cold front your on.
A few degrees will be added to lows tonight and freezing temps are not expected.
* Cold air across the region Friday morning will retreat, but may not be quick enough leading to the potential for a period of freezing drizzle Friday afternoon-evening. Most likely locations for freezing drizzle are north of a line from the north KC metro to Kirksville.
Conditions will trend warmer for Friday as sustained southeasterly flow continues to transport warm, moist air from the Gulf of Mexico.
Dry today through Friday as temperatures trend warmer.
507 AM CST Thu Dec 12 2024 Dry today through Friday as temperatures trend warmer.
Currently, zonal flow is in place aloft ahead of a trough west of the Baja California. Another stronger upper low just off the northwestern U. coast will move southeast into northern CA today, "kicking" the trough west of Baja California eastward.
441 AM EST Thu Dec 12 2024 Cold and blustery conditions likely today behind a cold front, with a warming trend forecast into the weekend.
Cloudy skies remain over the majority of the region early this morning and these high clouds are helping to keep overnight temperatures a good 10 to 15 degrees warmer than last night. Other than the high clouds, this very weak weather system will pass by to our south mostly unnoticed today. The main impacts this weather system will bring to our region are some slightly cooler temperatures on Friday (highs closer to normal) and some locally windy conditions this evening and tonight across western Imperial County.
505 AM CST Thu Dec 12 2024 - Dry weather conditions are in store for Thursday and Friday as high pressure builds into the region.
pdf High pressure will build to the northwest then north Today. The high will remain to the north Tonight, as an inverted trough develops over the coastal waters. A few stratus clouds will develop over the waters due to the coastal trough Tonight and come ashore late Tonight, otherwise clear skies expected for most of this period.
- Warmer temperatures for southern Kansas with cooler readings expected over central Kansas today - Good chances for drizzle and rain showers to affect the eastern half of Kansas late Friday afternoon and Friday night.
(Today through Friday night) Warmer weather looks to return for today as model agreement sees high pressure build under an upper-level ridge. With this ridge in place, look for afternoon high temperatures to rise back into 50s to low 60s this afternoon. Moving into the end of the week and the weekend, model agreement expects the ridge to break down into a more zonal upper-level flow by tonight. This break down will aid opening up the Central United State to a series of trough pushing through starting Friday. the first of these trough is trending too far north to bring chances of precipitations.
(Now through Friday night) A rather cold start to the day in the wake of the cold front leading to widespread frost across the area. Zonal flow will quickly develop across the area as upper troughing digs into the western US.
Lake effect snow is also expected to decrease in intensity this morning as winds decrease and shift slightly more westerly with the incoming high pressure. Temperatures will warm on the back side of today's high pressure for the incoming weekend as flow shifts to the southeast.
554 AM CST Thu Dec 12 2024 - Cool again today, with highs mostly below freezing, despite the partly to mostly sunny skies expected by afternoon.
543 AM CST Thu Dec 12 2024 Patchy/widespread frost potential will be possible across our entire forecast area early this morning as lows continue to be in the low 30s. Areas in northeast LA and southeast AR could see highs in the low 60s. Went ahead and leaned towards slightly warmer guidance trends to account for this.
723 AM EST Thu Dec 12 2024 Cold and blustery conditions likely today behind a cold front, with a warming trend forecast into the weekend.
510 AM CST Thu Dec 12 2024 (Today) Quiet/seasonably cool wx conditions will continue across the mid TN Valley for this Thu, as a strong dome of high pressure at the sfc builds more eastward into much of the region. Near zonal flow aloft will also remain fairly entrenched across the area, as an upper low/trough pattern rotates eastward thru the Great Lakes.
(Rest of Today) Tranquil weather across the Tennessee Valley early this morning with high pressure at the surface promoting clear/calm conditions. Ample sunshine and light southerly winds should be able to push most locations into the lower 50s by this afternoon.
618 AM EST Thu Dec 12 2024 (Today and tonight) Zonal flow aloft sets up following the departure of a large upper trough off the Northeastern US with a southern stream upper low over the Desert Southwest. At the surface, high pressure will build over the southeastern US states and begin sliding up the east coast toward the Carolinas resulting in northeasterly flow for the area.
402 AM CST Thu Dec 12 2024 Patchy/widespread frost potential will be possible across our entire forecast area early this morning as lows continue to be in the low 30s. Areas in northeast LA and southeast AR could see highs in the low 60s. Went ahead and leaned towards slightly warmer guidance trends to account for this.
453 AM CST Thu Dec 12 2024 - Cool again today, with highs mostly below freezing, despite the partly to mostly sunny skies expected by afternoon.
Highs today top out in the 60s and then we have one more cool morning tomorrow (but not as cold as today) before the high shifts eastward and we quickly moderate.
Quiet weather remains on tap through Friday as weak ridging contributes to our warming trend. Mild temperatures are in store on Friday as we warm into the low to mid-50s. (Friday Night through next Thursday) Our weather pattern will change this weekend as the low over the Great Plains pulls Gulf moisture northward.
The lower IFR/LIFR conditions have been improving this morning to mostly VFR with lingering higher terrain obscurations and local MVFR conditions, mainly along the Curry coast and into Northern California. Satellite image shows the upper trough moving towards the northwest California coast.
1124 AM CST Thu Dec 12 2024 Dry today through Friday as temperatures trend warmer.
pdf High pressure will continue building eastward over the eastern U. With the center of the high well to the north, the result will be an onshore flow pattern that may push some lower clouds from coastal waters over our eastern counties toward dawn.
1042 AM EST Thu Dec 12 2024 Cold and blustery conditions likely today behind a cold front, with a warming trend forecast into the weekend.
This Evening/Tonight Currently this afternoon, troughing is in place across the eastern U. with high pressure remaining in control. As the high pressure strengthens overnight, strong subsidence and light winds will produce radiational cooling and another significant drop in temperatures towards the morning. Friday and Friday Night On Friday, high pressure will strengthen and shift to the north and east with upper-level height rises. Another system will also come into view during this time as a closed low ejects out of the Rockies. However, lingering high pressure will keep the region dry with another decent drop in temperatures on Friday night.
/SW/ Patchy/widespread frost potential will be possible across our entire forecast area early this morning as lows continue to be in the low 30s. Areas in northeast LA and southeast AR could see highs in the low 60s. Went ahead and leaned towards slightly warmer guidance trends to account for this.
1252 PM EST Thu Dec 12 2024 Breezy, but drier as high pressure returns today.
With abundant sunshine this afternoon from Tucson west, temperatures are warming well into the 70s across the lower elevations.
High pressure pushing in from the west is yielding a calm and cool afternoon. A moderately strong radiational cooling night is expected with the high moving in, but enough boundary moisture and winds will prevent a truly cold night, but still, lows will drop down to around 30 and into the upper 20's in sheltered spots. Key Message(s): - Dry with cooler than normal temperatures.
(This afternoon through Friday) Sunny and cool weather will be the story today with a broad region of high pressure in place over the Southeast and Mid Atlantic regions. The southern extent of this low amplitude feature will pass across the Tennessee Valley tomorrow. At the same time, the low-level ridge will become centered over the Mid-Atlantic region, initiating weak warm air advection and southerly 850mb flow. Temperatures will fall into the 30s tonight, with some isolated spots falling into the upper 20s in our northeast, then daytime temperatures will be a few degrees warmer tomorrow with highs in the mid to upper 50s.
203 PM CST Thu Dec 12 2024 - The weather will stay chilly and dry tonight through Friday night as high pressure remains located near the area.
- Wide range of temperatures today depending on what side of the cold front your on.
1112 AM CST Thu Dec 12 2024 - Slightly warmer today with increasing southwest winds this afternoon. (Today and tonight) Short wave upper level ridging will move overhead today followed quickly by falling heights and lee surface cyclogenesis ahead of a sharp trough moving across the Great Basin overnight tonight. Quite a bit of cirrus is already moving over the low-amplitude ridge, but the amount and thickness of that cirrus should peak this evening into the early morning hours before drier air on the south side of the Great Basin trough begins to move overhead. Slightly increased wind speeds overnight tonight in addition to the abundant cirrus should keep low temperatures on the warmer side of guidance in line with the NBM.
1229 PM EST Thu Dec 12 2024 (Rest of today through Friday) A cold front has swept through the region introducing a brief but sharp influx of cooler continental air earlier this morning. High temperatures will remain pleasantly cool this afternoon, peaking in the low to mid 70s under mostly clear skies. Friday is expected to be warmer, with afternoon highs expected in the upper 70s.
1126 AM CST Thu Dec 12 2024 - Cool again today, with highs mostly below freezing, despite the partly to mostly sunny skies expected by afternoon.
304 PM EST Thu Dec 12 2024 High pressure arcing from the Upper Midwest to the central Appalachians and Southeast will gradually build eastward through Friday night. The high will eventually consolidate over New England this weekend as low pressure develops over the central Plains.
This will result in onshore flow across the region bringing in moisture and warmer temperatures. Otherwise, expect dry and warmer conditions accompanied by light southeasterly winds and increasing clouds. Overnight lows will be in the mid to upper 50s tonight and the low to mid 60s tomorrow night.
1118 AM CST Thu Dec 12 2024 - Dry weather conditions are in store for Thursday and Friday as high pressure builds into the region.
1120 AM CST Thu Dec 12 2024 - Warmer temperatures for southern Kansas with cooler readings expected over central Kansas today - Good chances for drizzle and rain showers to affect the eastern half of Kansas late Friday afternoon and Friday night.
Temps should fall into the low to mid 30s across all of north and central Georgia.
(Rest of today through Friday) A cold front has swept through the region introducing a brief but sharp influx of cooler continental air earlier this morning. High temperatures will remain pleasantly cool this afternoon, peaking in the low to mid 70s under mostly clear skies. Friday is expected to be warmer, with afternoon highs expected in the upper 70s.
1017 AM EST Thu Dec 12 2024 Drier weather is expected today in the wake of a strong cold front.
332 PM EST Thu Dec 12 2024 An arctic airmass will remain entrenched across the region tonight and Friday before warmer air builds into the Ohio Valley into the upcoming weekend.
Overcast skies will lead to much warmer low temperatures tonight than seen the past few mornings, generally in the upper 40s to mid 50s. Slightly warmer highs are seen from the mid 60s north to the mid 70s south. Even warmer lows are expected this night, in the upper 50s to low 60s.
Satellite image shows the upper trough moving towards the northwest California coast.
High pressure pushing in from the west is yielding a calm and cool afternoon. A moderately strong radiational cooling night is expected with the high moving in, but enough boundary moisture and winds will prevent a truly cold night, but still, lows will drop down to around 30 and into the upper 20's in sheltered spots. Key Message(s): - Dry with cooler than normal temperatures. High pressure dominates the pattern into the first part of the weekend. The storm track stays north on Friday with slight upper ridging that will allow for temperatures to warm up a few degrees.
250 PM EST Thu Dec 12 2024 Seasonably cool weather through Friday as high pressure builds in from the north.
1107 AM CST Thu Dec 12 2024 (Rest of Today) Tranquil weather across the Tennessee Valley early this morning with high pressure at the surface promoting clear/calm conditions. Ample sunshine and light southerly winds should be able to push most locations into the lower 50s by this afternoon.
Lows will likewise remain somewhat elevated ranging from the low 30s in the northwest to the low 40s over the southern Rolling Plains.
(Tonight) Tranquil weather across the Tennessee Valley will continue this evening and overnight, with high pressure at the surface the dominant feature across the area. Eventually, temperatures will settle into the lower 30s in most locations by early morning.
242 PM CST Thu Dec 12 2024 -Freezing drizzle remains a possibility for some locations tomorrow (Friday) midday and early afternoon.
912 PM EST Thu Dec 12 2024 An arctic airmass will remain entrenched across the region tonight and Friday before warmer air builds into the Ohio Valley into the upcoming weekend.
908 PM EST Thu Dec 12 2024 High pressure arcing from the Upper Midwest to the central Appalachians and Southeast will gradually build eastward through Friday night. The high will eventually consolidate over New England this weekend as low pressure develops over the central Plains.
Regional surface observations early this evening are showing that the low level flow has transitioned to northeasterly, which will limit the cold air advection overnight and prevent temperatures from dropping to as low as they did this morning. While skies are clear across the forecast area, those northeast winds are forecast to remain fast enough over most of the area to keep the low levels mixed and limit the radiational cooling potential.
Models are suggesting that showers and storms could become more or- ganized across Central/South Central TX during the overnight (into the early Sat morning) hours as a splitting upper jet pattern deve- lops in conjunction with the eastward passage of the main upper low (trough axis) across the Central Plains. Even with increasing clouds (broken to over- cast high clouds via the SW flow aloft), lows tonight will run from the upper 40s over the E/NE parts of the CWFA to the lower and mid 50s elsewhere. Warmer/more humid weather is expected tomorrow with highs in the lower to mid 60s over the NE parts of the area to the upper 60s to lower 70s over the SW parts of the area.
Some areas of freezing drizzle are possible in areas mainly west of I-135 and north of I-70 especially during the late afternoon and early evening hours. Temperatures so far range from the low 30s along and north of I-70 to the low 50s along the Kansas/Oklahoma border.
One more cold night tonight with clear skies and light winds, lows will fall into the low 30s inland to low 40s along the coast. Increasing clouds expected on Friday with warmer temps.
516 PM CST Thu Dec 12 2024 (Tonight) Tranquil weather across the Tennessee Valley will continue this evening and overnight, with high pressure at the surface the dominant feature across the area. Eventually, temperatures will settle into the lower 30s in most locations by early morning.
549 PM EST Thu Dec 12 2024 An arctic airmass will remain entrenched across the region tonight and Friday before warmer air builds into the Ohio Valley into the upcoming weekend.
924 PM EST Thu Dec 12 2024 Seasonably cool weather through Friday as high pressure builds in from the north.
531 PM CST Thu Dec 12 2024 -Freezing drizzle remains a possibility for some locations tomorrow (Friday) midday and early afternoon.
A moderately strong radiational cooling night is expected with the high moving in, but enough boundary moisture and winds will prevent a truly cold night, but still, lows will drop down to around 30 and into the upper 20's in sheltered spots. Key Message(s): - Dry with cooler than normal temperatures. High pressure dominates the pattern into the first part of the weekend. The storm track stays north on Friday with slight upper ridging that will allow for temperatures to warm up a few degrees.
Frost is expected across much of north and central Georgia as temperatures fall into the lower 30s to mid-30s overnight, and surface winds are light to calm. Temps should fall into the low to mid 30s across all of north and central Georgia.
420 PM CST Thu Dec 12 2024 - Low temperatures tonight drop into the -5 to -20 below zero, but with decreasing winds, with a low chance of wind chill values dropping below -30 below freezing.
536 PM CST Thu Dec 12 2024 - The weather will stay chilly and dry tonight through Friday night as high pressure remains located near the area.
535 PM CST Thu Dec 12 2024 - Low temperatures tonight drop into the -5 to -20 below zero, but with decreasing winds, with a low chance of wind chill values dropping below -30 below freezing.
1232 AM EST Fri Dec 13 2024 Seasonably cool weather through Friday as high pressure builds in from the north.
316 AM EST Fri Dec 13 2024 Strong Canadian high pressure building across the Northeast will bring seasonably cool weather to the Carolinas today.
This will help hold temperatures above freezing and in the 30s.
Winds will remain strong from the northeast into the weekend, as a large high pressure area moves slowly eastward across the eastern United States.
1104 PM CST Thu Dec 12 2024 - The weather will stay chilly and dry tonight through Friday night as high pressure remains located near the area.
(Today and tonight) A chilly start for this morning as high pressure at the surface will prevail through the day with northeast flow. Temperatures today will be in the low to mid 60s, and upper 60s/low 70s for the southeast Big Bend. Tonight, temps will be warmer than they have been the last few days with low in the upper 40s to low 50s.
956 PM CST Thu Dec 12 2024 - Low temperatures tonight drop into the -5 to -20 below zero, but with decreasing winds, with a low chance of wind chill values dropping below -30 below freezing.
(Today) Quiet/seasonably cool wx conditions prevail across the central TN Valley this early Fri morning, as high pressure moves into the mid/southern Atlantic states.
High temperatures should be a bit warmer today than on Thursday with 850mb about 2-4 degrees warmer, though this may be offset by the increasing high clouds.
(Rest of tonight) Mid-level westerly flow of 50-60 knots will gradually back to WSW and diminish in intensity overnight as an upper low (located across the central Pacific Coast of the U. Based on current surface observations, we have adjusted temps downward to reflect lows in the u20s-l30s and included a low chance for the development of patchy freezing fog (mainly across Cullman/Marshall/Dekalb/Jackson counties).
Evening update sent to increase pops across SE WA and the lower ID Panhandle. Travel conditions however could be very slick given temperatures at or below freezing through the Friday morning commute.
The big weather picture today is defined by an upper-level trough moving east through the Great Basin into the Intermountain West.