Aikyam-Lab/Synoptic-Bench huggingface dataset:
(Today through Monday) This AM, we have surface ridging across much of ERN Conus including the SE US. The satellite is generally clear except for some patchy river freezing fog. Temperatures are expected to warm into middle 40s to the lower 50s across C AL today with ample sunshine. As the gulf low moves NEWD tonight, at the same time a low pressure system will move EWD across the Great Lakes and drag a cold front with it toward AL. The best chances will for rain will be in the far S closest to the low.
Low clouds are scattered off the coast, but with the ridge these clouds will stay off/just onshore of Southern Oregon today. Today another disturbance will come in to the east of the ridge and will likely bring minimal impacts to the area other than a couple showers that could creep into Douglas County and parts of the Cascades north of Diamond Lake.
1000 AM EST Sun Jan 12 2025 Cold and dry conditions are expected through much of the week as a series of high pressure centers move over the area. Highs have been brought slightly warmer than previously advertised, but still on the order of around 10 degrees below normal. To the north, a weakening upper low retreats into Canada and eventually gets absorbed into the general flow. As this area of low pressure recedes, it opens the door for another round of Arctic air to spill into the central CONUS. Given the stout high pressure and reinforcing air mass, dry conditions prevail.
535 AM CST Sun Jan 12 2025 - A quick burst of snow and occasional freezing drizzle will cause limited wintry impacts today in areas north of I-70.
942 AM EST Sun Jan 12 2025 High pressure will move away from the area today as a cold front approaches. The cold front will move through the region tonight into Monday morning. Temperatures will be a few degrees warmer than yesterday. Cold front will push into the region after midnight and pass off to the east of the area Monday morning. This will determine whether there would be light snow or drizzle/freezing drizzle. Meridional flow will be present across the CONUS to start the period Monday night, with a ridge over the western United States and a persistent trough over the east.
The front should bring warmer air and high temps tomorrow should be in the mid to upper 50s and lows tomorrow night in the 40s.
549 AM CST Sun Jan 12 2025 (Today through Monday Night) Patchy to areas of dense freezing fog was in place across much of W- Cntrl/Cntrl/E and NE AR this Sunday morning. Given this, a freezing fog advisory is in place across the aforementioned areas through 15z today.
(Today and tonight) So far this morning we have not seen much in the way of fog development and while we cannot completely rule out very patchy fog in a few spots dense or more widespread fog is not anticipated this morning as winds increase behind a cold front and relative humidities remain mostly around 90% or less. There is not a significant airmass change behind the front, so expect temperatures to be fairly similar or even slightly warmer today in some parts of the area as snowpack has diminished compared to yesterday.
716 AM EST Sun Jan 12 2025 Dry weather is expected today under high pressure. A crossing cold front will then bring scattered snow showers to the region for Monday. This should gradually erode this morning as high pressure builds in.
557 AM CST Sun Jan 12 2025 (Today through Monday) The most recent surface analysis indicated a cold front in the Lone Star State that is now past the Texas Panhandle. Although the frontal passage will produce dry weather inland, precipitation over the lower Texas coastal waters cannot be ruled out. Finally, increasing winds and building seas along the Lower Texas Coast due to the approach and passage of the front will produce a Moderate Risk of rip currents at the local beaches today and tonight, with a High Risk on Monday.
Little to no impacts should be expected, with a reminder ground temperatures are subfreezing so isolated slick spots even without showers will be possible. High pressure returns this week and valley inversions will rebuild or in the case of the Flathead valley and Lemhi County ID, strengthen.
325 AM CST Sun Jan 12 2025 Today and Tonight: Wl start off cold and dry this morning with most of the area below freezing and a PWAT less than a quarter inch. The precipitation will end well before temperatures across our north bottom out near freezing.
(Today through Monday Night) Patchy to areas of dense freezing fog was in place across much of W- Cntrl/Cntrl/E and NE AR this Sunday morning. Given this, a freezing fog advisory is in place across the aforementioned areas through 15z today.
At or below freezing low temperatures will persist through Monday morning for most of southeast Arizona.
Upper trough will remain in place today, along with some lingering moisture. This will support additional light snow shower development later today into the evening, mainly across the higher terrain. The cooler air mass in place today will support below normal temps, with 30s across the plains and 20s across the mountain valleys. Weakening upper trough lingers over Colorado on Monday, keeping temps rather chilly for another day, while just a few flurries or brief snow showers persist over the higher terrain. Upper ridge then temporarily builds over the Rockies Tue-Thu, with dry conditions and temperatures warming back to near or slightly above seasonal averages.
The HRRR brings that fog farther south into the Pocatello area while the NAM doesn't bring the fog through the lower Snake Plain, but does develop a second area of fog out across parts of the eastern Magic Valley. Both models show improvement in visibility by midday Sunday, but we will be hard pressed to completely break out of the low stratus through these already mentioned areas. Highs today and Monday will range from the upper teens in the upper Snake River Plain to mid and upper 20s in the lower Snake River Plain and eastern Magic Valley. Overnight lows are going to dropping into the low to mid teens in the eastern Magic Valley and lower Snake Plain while most of the upper Snake Plain falls into the single digits and won't be too much above 0 deg F.
High pressure builds aloft, maintaining cool and mostly dry conditions.
523 AM MST Sun Jan 12 2025 - Snow showers taper today, but some afternoon orographic showers are expected to produce an additional inch or two of new snow on the high country.
627 AM CST Sun Jan 12 2025 (Today through Monday) This AM, we have surface ridging across much of ERN Conus including the SE US. The satellite is generally clear except for some patchy river freezing fog. Temperatures are expected to warm into middle 40s to the lower 50s across C AL today with ample sunshine. As the gulf low moves NEWD tonight, at the same time a low pressure system will move EWD across the Great Lakes and drag a cold front with it toward AL. The best chances will for rain will be in the far S closest to the low.
633 AM EST Sun Jan 12 2025 High pressure keeps cold, dry air over the forecast area today.
510 AM CST Sun Jan 12 2025 Updated at 510 AM CST Sun Jan 12 2025 - Much cooler and still breezy on Sunday. (Today and tonight) A weak cold front has made its way south of the FA. Despite the FROPA, temps are still 5 to 10 degrees warmer than they were this same time last night. A few areas across the southern Rolling Plains may see highs reach into the low 50s. Zonal flow will remain overhead through tomorrow morning as the positively tilted upper trough axis remains well to our north, extending westward to southern California.
907 AM EST Sun Jan 12 2025 High pressure will build over the area today then slide east tonight. A weak warm front will lift across the area Monday.
645 AM EST Sun Jan 12 2025 High pressure will move away from the area today as a cold front approaches. The cold front will move through the region tonight into Monday morning. Temperatures will be a few degrees warmer than yesterday. Cold front will push into the region after midnight and pass off to the east of the area Monday morning. This will determine whether there would be light snow or drizzle/freezing drizzle. Meridional flow will be present across the CONUS to start the period Monday night, with a ridge over the western United States and a persistent trough over the east.
451 AM MST Sun Jan 12 2025 - Snow showers taper today, but some afternoon orographic showers are expected to produce an additional inch or two of new snow on the high country.
617 AM EST Sun Jan 12 2025 Cold and dry conditions are expected through much of the week as a series of high pressure centers move over the area. To the north, a weakening upper low retreats into Canada and eventually gets absorbed into the general flow. As this area of low pressure recedes, it opens the door for another round of Arctic air to spill into the central CONUS. Given the stout high pressure and reinforcing air mass, dry conditions prevail.
Tonight and Monday Afternoon visible satellite imagery shows continued cloud cover (with occasional breaks) across many of the valley areas across eastern Idaho while much of the higher terrain is seeing more sun than clouds today. Aside from maybe an isolated upslope enhanced snow shower around the Island Park area, things will remain dry with high pressure building in over the area. Expect temps to continue where they've been the past few days with highs in the upper teens to upper 20s and lows ranging from around 0 to mid teens, coldest in the high country.
At this time, all locations are above freezing, but only a handful of degrees above freezing for the SW and south central TX Panhandle where deepest snow pack still remains. But once again tonight, with lows dropping below freezing, black ice will form as areas refreeze, so be mindful of this when traveling tonight.
(Tonight) Tranquil weather across the Tennessee Valley this afternoon, with high pressure promoting clear/calm conditions. Ample sunshine has allowed temperatures to reach the lower 40s in most locations and helped to melt and evaporate most lingering moisture (from snow/ice) on area roadways. Additionally, a low chance for some freezing fog is once again forecast for Lake Guntersville and the sheltered river valleys of northeast Alabama and southern middle Tennessee. Motorists will need to watch out for reduced visibilities in these areas immediately along the lake -- and for the possibility of some patchy black ice on bridges/overpasses.
302 PM EST Sun Jan 12 2025 High pressure will bring mostly dry conditions tonight into Monday.
Weak upper-level ridging is shifting farther east as a longwave trough axis digs into the Great Plains. While high pressure remains centered over S Georgia and the Florida peninsula, an area of low pressure is beginning to take shape in the northwesternmost section of the Gulf of Mexico. As the longwave trough lifts northward while propagating eastward, a trailing cold front arrives overnight tomorrow night, washing out in the process to the south of the peninsula.
(Tonight through Monday night) Cold air advection behind a recent cold front will allow the low temperatures for tonight be in the 40s for Deep South Texas and the Rio Grande Valley. The low temperatures for Monday night are expected to be mostly in the 40s, but a few places in the Lower Rio Grande Valley could be in the low 50s. Lastly, along the Lower Texas Coast, a moderate risk of Rip Currents is expected then becoming High Risk of Rip Currents tomorrow in the wake of the cold front that passed through the region.
Winds will also increase later this evening from the northeast and become gusty at times later tonight through Monday as the pressure gradient tightens in response to low pressure passing over the northern Gulf of Mexico through the period. Further to the east and northeast across the remainder of the western Florida Panhandle and south central Alabama, plenty of sun is expected prior to the mid clouds advecting in so expect temperatures in these areas to continue warning into the lower to middle 50s. A large positively tilted upper trof stretching from the northern Plains to near the Baja area becomes increasingly elongated during the period and expands into the northeastern states. Highs on Monday will be in the lower to mid 50s.
1147 AM CST Sun Jan 12 2025 - Patchy light snow and freezing drizzle are possible through this morning. The precipitation will be very light and with temperatures near freezing, impacts will be limited.
1120 AM CST Sun Jan 12 2025 (Today through Monday) - A weak cold front will move across the region today, with mainly dry conditions forecast. Clear skies and cold temperatures are seen early this morning, with lows just before sunrise expected to be in the low to mid 30s. A weak cold front located in Central Texas will move across the area today. Highs today will vary from the mid and upper 50s north to the low and mid 60s south due to the timing of the front. This will mainly re-enforce the cold air with highs on Monday expected in the low 50s to low 60s areawide.
The approach of this high pressure will promote very light winds early tomorrow morning, and combined with partly to mostly clear skies, should lead to cold morning lows in the single digits to near 0.
1132 AM CST Sun Jan 12 2025 - A quick burst of snow and occasional freezing drizzle will cause limited wintry impacts today in areas north of I-70.
1130 AM CST Sun Jan 12 2025 (Today through Monday) The most recent surface analysis indicated a cold front in the Lone Star State that is now past the Texas Panhandle. Although the frontal passage will produce dry weather inland, precipitation over the lower Texas coastal waters cannot be ruled out. Finally, increasing winds and building seas along the Lower Texas Coast due to the approach and passage of the front will produce a Moderate Risk of rip currents at the local beaches today and tonight, with a High Risk on Monday.
The presence of this ridge plus the cool post- frontal airmass will result in continued below-normal temperatures, with lows tonight in the teens to low 20s and highs tomorrow only reaching into the 40s.
Continue to exercise caution especially over shaded areas and secondary roads as temps drop below freezing again tonight. Caution is still advised over shaded roads and hills, but today's warmer temps will certainly help to further improve conditions. Temperatures will drop back below freezing for everyone tonight, but lows will mostly be above 25 degrees as clouds fill into the area ahead of a mostly dry cold front moving through Monday.
The pronounced low level ridge is focusing moist return flow over the area today. Sunshine will allow temperatures to warm to the 50s this afternoon in central and northern areas, while areas to the south should stay cooler under overcast skies with highs in the 40s. A surface cold front will sweep across the area Monday and usher in colder drier air, ending rain. A short wave will travel the east periphery of an upper ridge over the northern Pacific and will dig and deepen and eventually cutoff off the coast of southern California. The pattern depicted in guidance at this time does not seem to accomplish enough recovery for severe weather, but should the low placement or timing change, we may need to watch for severe concerns.
1030 AM CST Sun Jan 12 2025 - A quick burst of snow and occasional freezing drizzle will cause limited wintry impacts today in areas north of I-70.
North to northeast winds will slightly slacken throughout today post cold front passage.
1124 AM CST Sun Jan 12 2025 Updated at 1123 AM CST Sun Jan 12 2025 - Much cooler and still breezy on Sunday. (Today and tonight) A weak cold front has made its way south of the FA. Despite the FROPA, temps are still 5 to 10 degrees warmer than they were this same time last night. A few areas across the southern Rolling Plains may see highs reach into the low 50s. Zonal flow will remain overhead through tomorrow morning as the positively tilted upper trough axis remains well to our north, extending westward to southern California.
201 PM CST Sun Jan 12 2025 - Refreezing and black ice concerns continue into Monday morning.
- A dry cold front will has moved through the region.
At the surface there is a coastal trough off the West Coast and high pressure across the West.
/SAS/ Today and Tonight: Wl start off cold and dry this morning with most of the area below freezing and a PWAT less than a quarter inch. The precipitation will end well before temperatures across our north bottom out near freezing.
imagery highlights broad, anticyclonic flow over the Florida Peninsula, with a longwave trough buckling over the Gulf States.
An area of low pressure and an associated cold front will approach the FL peninsula late tomorrow afternoon and into the evening as the winds turn ESE.
Mostly clear skies tonight will maximize radiational cooling, so most locations will get down to the low 20s.
Weak cold advection was probably negating the abundant insolation as the high as of 1:30 pm was still in the upper 30s across this snowpacked region â with a few mid 40s in the southwest.
347 PM EST Sun Jan 12 2025 Chilly high pressure will build over the Southeast states and Carolinas tonight. The high pressure will slowly shift SE and offshore Monday.
After today's melting with the slightly warmer temperatures and sun, tonight will be cold again with temperatures well below freezing and any lingering moisture on walkways and roads is expected to re-freeze. A moisture starved cold front will swing through our area on Monday. Warmer weather this weekend with widespread rain looking likely. A fast moving, but weak trough will dive towards the southeast and help drive a cold front through the Ohio and Tennessee Valleys during the middle of the week.
1157 AM CST Sun Jan 12 2025 - A blast of arctic cold air is coming with a cold front's passage tonight.
A weak low pressure will move across the coast, bringing an area of lift for rain beginning after sunset. However, for now went with an northerly extent just south of Birmingham due to the low PW values through the afternoon and expected increase to only 0. Any rain should be moderate at best, with the higher amounts farther south towards the coast. High temperatures today look to be in the low 40s in the north and the low 50s in the south. The low temperature overnight will be closer to midnight, before the rain moves in. Though cold temperatures are in the forecast, the rain is expected to remain in areas above freezing. Highs Monday will be in the low 40s in the north to the low 50s in the south, a few degrees below normal for this time of year.
Building high pressure over the next few days may lead to expansion of the area impacted.
1227 PM EST Sun Jan 12 2025 High pressure will build over the area today then slide east tonight. A weak warm front will lift across the area Monday.
- A dry cold front will move through the region today, knocking temperatures back below normal to begin the work week.
1017 AM MST Sun Jan 12 2025 - Snow showers taper today, but some afternoon orographic showers are expected to produce an additional inch or two of new snow on the high country.
- A weak cold front moved through early this morning, bringing cooler temperatures through Monday.
258 PM CST Sun Jan 12 2025 - A blast of arctic cold air is coming with a cold front's passage tonight.
104 PM EST Sun Jan 12 2025 High pressure will move away from the area today as a cold front approaches. The cold front will move through the region tonight into Monday morning. Temperatures will be a few degrees warmer than yesterday. Cold front will push into the region after midnight and pass off to the east of the area Monday morning. This will determine whether there would be light snow or drizzle/freezing drizzle. Meridional flow will be present across the CONUS to start the period Monday night, with a ridge over the western United States and a persistent trough over the east.
The center of the low is expected to remain offshore. Temperatures will be a little warmer during the morning hours than in previous mornings with lows in the upper 30s to low 40s.
1100 AM CST Sun Jan 12 2025 - A weak cold front moves through early this morning, bringing cooler temperatures through Monday.
1114 AM CST Sun Jan 12 2025 (Today through Monday Night) Patchy to areas of dense freezing fog was in place across much of W- Cntrl/Cntrl/E and NE AR this Sunday morning. Given this, a freezing fog advisory is in place across the aforementioned areas through 15z today.
832 PM CST Sun Jan 12 2025 Updated at 826 PM CST Sun Jan 12 2025 - Continue to exercise caution especially over shaded areas and secondary roads as temperatures drop below freezing again tonight. - A cold front will push across Middle Tennessee later tonight and early Monday.
Lingering isolated and light snow showers will dissipate this evening with high pressure and quiet weather but colder temperatures building into the state through the next few days.
- Ridging building in for midweek will bring drier and warmer weather, though breezes may cause localized blowing snow at times. Meteorological Overview: Persistent northerly flow has continued today, resulting in areas of upslope snow showers, especially along and south of the Highway 200 corridor from Great Falls to Grass Range to the Little Belt and Snowy Mountains. Expect snow to continue through overnight tonight, though it will be on the decrease as upper level ridging begins to nudge into the area early Monday.
- Ridging building in for midweek will bring drier and warmer weather, though breezes may cause localized blowing snow at times. /Issued 222 PM MST Sun Jan 12 2025/ Meteorological Overview: Persistent northerly flow has continued today, resulting in areas of upslope snow showers, especially along and south of the Highway 200 corridor from Great Falls to Grass Range to the Little Belt and Snowy Mountains. Expect snow to continue through overnight tonight, though it will be on the decrease as upper level ridging begins to nudge into the area early Monday.
Meanwhile, a cold front was draped from southern IL through central AR with a reinforcing front not far behind that one in MO into OK. Lower clouds arrive Monday morning behind the cold front.
- Ridging building in for midweek will bring drier and warmer weather, though breezes may cause localized blowing snow at times. -Coulston /Issued 454 PM MST Sun Jan 12 2025/ Meteorological Overview: Persistent northerly flow has continued today, resulting in areas of upslope snow showers, especially along and south of the Highway 200 corridor from Great Falls to Grass Range to the Little Belt and Snowy Mountains. Expect snow to continue through overnight tonight, though it will be on the decrease as upper level ridging begins to nudge into the area early Monday.
528 PM CST Sun Jan 12 2025 (Tonight through Monday night) Showers currently affecting our area waters are expected to gradually diminish this evening as the coastal trough shifts eastward. Meanwhile, a weak cold front will move into South Texas this afternoon, reaching the coast around midnight. However, low- level moisture associated with the departing coastal trough will maintain partly to mostly cloudy skies overnight.
Ridging over the northeastern Pacific and broad troughing over central North America will keep our forecast area under general high pressure with north flow aloft. This ridge then remains in control overhead, or just to the west of the area for the remainder of the week. Expect fog/freezing fog and low clouds each overnight and morning for most valleys west of the Cascades. The inversion at 12Z over KMFR was very weak and shallow and suggests we should easily burn off the lower ceilings later today.
517 PM CST Sun Jan 12 2025 - A blast of arctic cold air is coming with a cold front's passage tonight.
Cold temperatures will persist across the Mid-South through midweek in wake of a cold front passage tonight.