Aikyam-Lab/Synoptic-Bench huggingface dataset:
527 PM CST Sun Jan 12 2025 (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.
543 PM CST Sun Jan 12 2025 - Refreezing and black ice concerns continue into Monday morning.
626 PM EST Sun Jan 12 2025 High pressure will bring mostly dry conditions tonight into Monday.
620 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.
730 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.
216 PM MST Sun Jan 12 2025 - Moderate to heavy snowfall continues on the North Slopes of the Little Belt and Snowy Mountains - Ridging building in for midweek will bring drier and warmer weather, though breezes may cause localized blowing snow at times - Arctic air mass may move into the area late this week, potentially bringing the coldest air mass of the season so far to the area 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.
547 PM CST Sun Jan 12 2025 Cold temperatures will persist across the Mid-South through midweek in wake of a cold front passage tonight.
645 PM EST Sun Jan 12 2025 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.
406 PM CST Sun Jan 12 2025 (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.
240 AM CST Mon Jan 13 2025 - Refreezing and black ice concerns for the morning commute continue for most of the week.
The lower conditions are in the Coquille Valley to the Coos County coast (including North Bend), with mainly MVFR for the Umpqua Valley (including Roseburg), and areas of MVFR elsewhere including the remainder of southwest Oregon, northern Klamath County, and the Scott Valley. 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.
Temperatures this evening are in the lower 30s to around 40 degrees. A cold front is moving across central Arkansas at this time and will eventually move through the region overnight. ARS Cold temperatures will persist across the Mid-South through midweek in wake of a cold front passage tonight.
1204 AM CST Mon Jan 13 2025 - A blast of arctic cold air is coming with a cold front's passage tonight.
110 AM EST Mon Jan 13 2025 High pressure keeps cold, dry air over the forecast area into tonight. High pressure over the region is beginning to break down slightly as noted by latest surface charts. However, the center of the high remains over the area, which is leading to light to calm winds already and mostly clear skies.
1217 AM EST Mon Jan 13 2025 Chilly high pressure over the southeast states will slowly shift offshore today.
353 AM EST Mon Jan 13 2025 A crossing cold front will bring a low risk of precipitation today. Very cold and unsettled weather is then expected through much of the upcoming week, with snow favoring the interstate 80 corridor and the higher elevations southeast of Pittsburgh.
Weak system moves across the Ohio Valley today with a trailing cold front. Light snow flurries possible across the higher elevations. Colder air settles in behind the departing cold front. There is very limited moisture associated with this system, but weak synoptic ascent and limited orographic lift will produce some light, primarily non-accumulating, precipitation across the higher terrain. A few snow flurries may occur across southwest Virginia and the higher elevations. High pressure across the area tonight will result in light winds and a clearing sky.
At the surface, an area of low pressure developing over the western Gulf of Mexico will move east towards Florida today, lifting a warm front north through southern Florida. This warm front will allow temperatures to quickly increase during the late morning and early afternoon hours, mainly for areas along and south of Interstate 4, with afternoon highs rising to a few degrees above normal.
A weak low pressure system over the Pacific will move inland late in the week, though it will lack significant moisture and will mainly result in increased cloud cover across Northwest Arizona.
1055 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.
The compact trough in the previous AFD (below) has already passed west of our CWA and was in western NV at 8 PM MST.
1049 PM CST Sun Jan 12 2025 - Refreezing and black ice concerns continue into Monday morning.
1012 PM CST Sun Jan 12 2025 (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.
136 AM CST Mon Jan 13 2025 - A cold front's early morning passage will sweep in a blast of arctic cold air today, with temperatures falling to near and below freezing.
1052 PM EST Sun Jan 12 2025 High pressure will bring mostly dry conditions tonight into Monday.
(Today and tonight) Today is expected to be slightly cooler than yesterday despite surface winds veering around to the south-southwest this afternoon. At the mid and upper levels of the atmosphere, a short wave trough will continue to slowly move southward across the central Rockies.
Currently - Modest high pressure centered near the Carolina Coast is maintaining light to gentle northeast to easterly breezes across the Keys this evening. Cooler waters is likely assisting in holding winds backed for the time being. Stable post cold front conditions prevail. A shift east to southeast is expected on Monday due to the high shifting further out into the Atlantic and a low developing in the Gulf of Mexico. The rather quick clocking of our winds is expected to continue as high pressure near the Carolina Coast pushes out into the Atlantic, making way for the next low deepening as it advances northeastward through the Gulf of Mexico. Still cooler shallow waters may delay the shift to easterly, but this easterly then southeasterly shift is almost assured on Monday.
The low levels will remain dry so although the NBM suggests chance to likely PoPs it appears unlikely that the dry air will be overcome and produce measurable precipitation. Both temperatures and Tw are above freezing so any precip that manages to fall would be rain. Overnight, clouds should clear as dry air filters into the area behind a dry cold front which will move through during the overnight hours.
1048 PM CST Sun Jan 12 2025 Updated at 1036 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.
(Today) An area of low pressure developing south of the Lousiana coast was in part returning clouds across the southeast states. A cold front was moving across the Mid Mississippi River Valley. This boundary extending southward from low pressure north of the Great Lakes, should sweep across the forecast area this morning. Despite limited direct sun, high temperatures today should rise into the low/mid 40s (colder west), with a NW wind of 5-10 mph.
A deep low pressure system continues to slowly move eastward over the far northern CONUS. The upper-level synoptic pattern keeps trending towards ridging over the Rockies and west coast from the ensembles over the next few days.
High pressure with this system and therefore drier airmass in the 925-500 mb layer is farther west in eastern Saskatchewan. Drier 850 mb airmass moves in tonight and should give a better shot at clearing with high pressure center Minot-Jamestown.
- A weak cold front will bring cooler temperatures into Tuesday.
Mid level stratus has been observed early this morning, as a weak low pressure has ejected from a trough axis located in the Rockies. As we move through Monday, the aforementioned low pressure will continue to retrograde towards the southwest and a ridge of high pressure will continue to build in the PacNW. As we continue through Tuesday, the closed low off SoCal will move further west, and most of NorCal will be firmly under the dominance of high pressure.
709 AM EST Mon Jan 13 2025 At the surface, an area of low pressure developing over the western Gulf of Mexico will move east towards Florida today, lifting a warm front north through southern Florida. This warm front will allow temperatures to quickly increase during the late morning and early afternoon hours, mainly for areas along and south of Interstate 4, with afternoon highs rising to a few degrees above normal. Areas north of I-4 will not benefit from this warmup however, as a cold front pushing southeast will sweep up this low and clear through the Florida Peninsula tonight and Tuesday morning. Showers and light rain will be possible ahead of the cold front today and tonight, with drier but cloudy conditions filling in by Tuesday.
(Now through Tuesday night) A rather large positively tilted upper trof over much of the CONUS becomes increasingly elongated through the period, with the flow over the forecast area becoming increasingly zonal. A cold front moves through the area as well today and ushers in cooler and drier air, with dry conditions expected for tonight through Tuesday night. Highs today and Tuesday will be in the lower to mid 50s.
Low pressure was located over eastern Lake Superior early this morning with high pressure over the Northern Plains. With air temperatures falling into the single digits and teens below zero and winds remaining elevated due to the pressure gradient between the low to our east and high to our west, wind chills were in the teens and 20s below zero with some 30s below zero as well. Otherwise today, an upper low will drop across the region and keep light snow showers and flurries in place across much of the Northland through the day before tapering off overnight.
537 AM CST Mon Jan 13 2025 (Today) An area of low pressure developing south of the Lousiana coast was in part returning clouds across the southeast states. A cold front was moving across the Mid Mississippi River Valley. This boundary extending southward from low pressure north of the Great Lakes, should sweep across the forecast area this morning. Despite limited direct sun, high temperatures today should rise into the low/mid 40s (colder west), with a NW wind of 5-10 mph.
- Warmer and rainy to end the week. A cold front will move across the area this morning with cloudy skies and perhaps a few stray flurries. Temps will plunge again for tonight as high pressure settles in with clearing skies and light winds.
The flow in the lower levels is progged to shift to a more southerly direction tonight and strengthen Tuesday, bringing low to mid level clouds across the area leading to skies becoming mostly cloudy to cloudy by Tuesday. At this time, freezing temperatures are not anticipated.
(Monday through Tuesday) Slightly cooler than normal conditions will continue into the middle of the week across the Four State Region. This is due to post-frontal cold air advection introducing drier air and maintaining temperature maximums/minimums in the lower 50s/lower 30s respectively. Convergent, zonal flow aloft will suppress active weather with subsequent surface ridging maintaining light winds and temperature maximums/minimums above- normal in the 60s/40s respectively.
452 AM CST Mon Jan 13 2025 (Monday through Tuesday) Slightly cooler than normal conditions will continue into the middle of the week across the Four State Region. This is due to post-frontal cold air advection introducing drier air and maintaining temperature maximums/minimums in the lower 50s/lower 30s respectively. Convergent, zonal flow aloft will suppress active weather with subsequent surface ridging maintaining light winds and temperature maximums/minimums above- normal in the 60s/40s respectively.
At or below freezing low temperatures will persist through Tuesday morning for most of southeast Arizona.
632 AM EST Mon Jan 13 2025 Cold high pressure will build into the middle Ohio Valley today.
The low levels will remain dry so although the NBM suggests chance to likely PoPs it appears unlikely that the dry air will be overcome and produce measurable precipitation. Temperatures through 700mb and surface Tw are above freezing so any precip that manages to fall would be rain. Overnight, clouds should clear as dry air filters into the area behind a dry cold front which will move through during the overnight hours.
(Rest of Today) An area of low pressure at the surface is situated just off the LA/MS coast, and as a result, a broad area of dense stratus is pushing across the region. All in all this will allow temperatures to rise into the low to mid 40s again by the afternoon. Any precipitation from the aforementioned low pressure system will remain displaced to our south.
Temperatures are expected to be in the lower 70s for daytime highs and near 60 for overnight lows.
High pressure building over the region today will provide for morning clouds and fog and mostly dry conditions.
940 AM EST Mon Jan 13 2025 Cold high pressure will build into the middle Ohio Valley today.
There are a few visibility impacts, but this time it's generally found where some of our highway hills rise into this low cloud deck more so than any actual fog. This low stratus will be with us for most of the day. Look for highs to be almost a repeat of yesterday, though the continued low stratus may keep us just a degree or two cooler. Highs will be around 20 deg F in the upper Snake Plain and mid 20s to near 30 in the lower Snake Plain and eastern Magic Valley.
PoPs drop off quickly for areas north of I-20 where moisture content remains lower, even with a cold front also set to pass through the area. High pressure and stable conditions will build over the region on Tuesday with zonal flow aloft.
- Ridging through midweek brings much warmer temperatures to the region.
335 AM CST Mon Jan 13 2025 Today and Tonight: Early morning surface analysis had a low just off the southeast Louisiana coast and a cold front just west of our CWA. This will result in cooler and drier air moving into our CWA. This will bring an end to the light rain in the southeast by mid morning and result in cooler than normal temperatures across the northwest half of the CWA.
418 AM EST Mon Jan 13 2025 Cold high pressure will build into the middle Ohio Valley today.
513 AM CST Mon Jan 13 2025 - A weak cold front will bring cooler temperatures into Tuesday.
Warm front progressing into eastern Montana, spreading low cloud and warmer temperatures eastward. With the low cloud reaching the North Dakota border, seeing temperatures begin to rise over Sheridan county, and wind chills rising above critical. Will also see a few snow showers as the warm front moves east but any snow accumulations will be less than an inch. The pattern of upper ridge over the Pacific Northwest favors chinook warming through the middle of the week with widespread thawing temperatures and dry conditions. The next trough drops out of Alaska late in the week and could usher in sharply colder conditions for the weekend. Confidence is moderate to high on the placement of light snow today, along with temperatures trending much warmer than normal midweek.
(Today through Tuesday Night) A new cold front is dropping SE through the state early this Mon morning. Other than residual issues from melting snow refreezing in areas with below freezing temps. The cold front will push SE of the state by later today. Temps will end up cooler overall for this afternoon. Highs will be in the low 30s to mid 40s. with temps warming back up into the low 40s to low 50s for highs on Tue.
518 AM CST Mon Jan 13 2025 - Refreezing and black ice concerns for the morning commute continue for most of the week.
453 AM CST Mon Jan 13 2025 (Today through Tuesday Night) A new cold front is dropping SE through the state early this Mon morning. Other than residual issues from melting snow refreezing in areas with below freezing temps. The cold front will push SE of the state by later today. Temps will end up cooler overall for this afternoon. Highs will be in the low 30s to mid 40s. with temps warming back up into the low 40s to low 50s for highs on Tue.
- The small risk for freezing rainfall this morning appears to have ended. 03 inch) freezing rain south of Interstate 20 and north of Macon. This risk appears to be dissipating and may have flown the coup entirely due to cloud cover (a hindrance for additional cooling) and surface temperatures that are still above freezing as of 230 AM. Should any precipitation overcome the dry air and the limitations above, then road temperatures that area above freezing should prevent any significant impacts. Thus forecast confidence in no impacts from freezing precipitation this morning is high (95%). Northwest winds will become more persistent as the high builds in and this should prevent fog from being a concern tonight.
552 AM CST Mon Jan 13 2025 Today and Tonight: Early morning surface analysis had a low just off the southeast Louisiana coast and a cold front just west of our CWA. This will result in cooler and drier air moving into our CWA. This will bring an end to the light rain in the southeast by mid morning and result in cooler than normal temperatures across the northwest half of the CWA.
Brief freezing temperatures will be seen before sunrise over some of the Hill Country and southern Edwards Plateau with morning lows in the mid to upper 30s elsewhere. Cloud cover will decrease a bit this afternoon with cool high temperatures in the low 50s to low 60s forecast.
Another cold front is progged to push through the Keys marine zones Tuesday afternoon and evening, with a northerly wind surge expected in its wake.
A dry cold front progressing southeastward through the Tennessee Valley will reinforce cold air through the mid week beginning tonight as lows drop into the upper teens to lower 20s.
1210 PM CST Mon Jan 13 2025 Today and Tonight: Early morning surface analysis had a low just off the southeast Louisiana coast and a cold front just west of our CWA. This will result in cooler and drier air moving into our CWA. This will bring an end to the light rain in the southeast by mid morning and result in cooler than normal temperatures across the northwest half of the CWA.
Otherwise, inversions will continue to strengthen as high pressure builds. Expect stratus and/or patchy dense freezing fog will remain across portions of the Snake Plain, Magic Valley, South Hills/Albion Mountains, eastern, and southeast highlands.
Here's a few of the morning lows: Bellemont: 0 Window Rock: 1 Flagstaff Airport: 3 Grand Canyon Airport: 5 Winslow: 10 Prescott Airport: 16 Page: 24 Mostly sunny but below average temperatures continue the next couple days as Northern Arizona remains under the influence of a cold trough.
1044 AM CST Mon Jan 13 2025 - A cold front's early morning passage will sweep in a blast of arctic cold air today, with temperatures falling to near and below freezing. - A reinforcing shot of arctic cold will come with another cold front's passage Tuesday.
1109 AM CST Mon Jan 13 2025 (Rest of Today) An area of low pressure at the surface is situated just off the LA/MS coast, and as a result, a broad area of dense stratus is pushing across the region. All in all this will allow temperatures to rise into the low to mid 40s again by the afternoon. Any precipitation from the aforementioned low pressure system will remain displaced to our south.
pdf An area of low pressure over the northeastern Gulf will move east southeast this afternoon and evening. Rain showers extending east northeast from the low will continue as the low moves southeast. Strong high pressure will build to the northwest overnight, with skies beginning to clear from northwest to southeast. Lows will dip to around freezing over inland SE GA, while lows in the mid 40s are expected for north central FL.
Discussion: Colder air will be moving in late this afternoon into tonight behind the exiting cold front. Shallow moisture may be enough for a few flurries/sprinkles mainly northern mountain areas late this afternoon into early evening, although these will be limited given the limited moisture and the low level flow being more westerly than ideal for orographic lift. There will be enough wind in the higher elevations of the mountains that wind chill values will dip into the single digits or even a bit below zero later tonight/early Monday, but at this time values are expected to stay above cold weather advisory criteria (-5 in the mountains) except perhaps for a few of the very highest peaks, so none will be issued at this time.
Cloud cover will increase overnight as a coastal low surges moisture into the lower atmosphere and bring a chance of rain tomorrow and tomorrow night. Tuesday evening and overnight has the highest chance of precipitation for the short term, with a 70-80% chance of rain across the CWA. The highest QPFs are along the coast, with the greatest amounts overnight at 0.
- A reinforcing shot of arctic cold will come with another cold front's passage Tuesday.