Aikyam-Lab/Synoptic-Bench huggingface dataset:
Winds across the Straits are moderate to fresh, while they are light over the cooler Gulf and Bay waters. These cooler waters and which way the wind is coming in is also an enormous determinant of temperatures. Temperatures are struggling to hit 70 in the Lower and Middle Keys where winds are coming in from the north side. Meanwhile, temperatures are at least in the lower 70s, and possibly mid 70s, in the Upper Keys, where breezes are arriving from the Atlantic side. This mornings sounding indicated quite a bit of veering through the lower levels. The old ridge will be absorbed by another modest high lumbering east southeastward through the southeastern United States and adjacent Gulf.
Sfc analysis shows coastal trough just offshore the FL east coast producing very low level N/NW flow with winds veering quickly NE to E above the sfc. Will likely be adding patchy fog for much of EC FL late tonight into early Mon as winds become very light in vicinity of weak ridge axis. Warmer tonight with most areas seeing temperatures fall into the upper 40s and low 50s.
Most of what falls will remain in liquid form as we have plenty of warm air near the surface, but late tonight soundings show the temperature profiles falling below freezing mainly north of I-40, which will support at least a mix of rain and snow.
- Meteorological Overview: Upper level ridging centered just off the west coast will largely remain in place through much of the upcoming week thanks to a persistent cutoff upper level low across the Southwest CONUS.
1221 PM CST Sun Jan 26 2025 Surface analysis late this morning shows a weak cold front stretching from New England back through the Ohio and Lower Mississippi Valleys. The nearest precipitation is currently located over western sections of the Lower Mississippi Valley. Temperatures as of 10 AM CST are mainly in the lower to middle 40s across most of the area.
The main story will be building high pressure and inversion conditions. Highs tomorrow will remain below freezing where the inversion holds and in the mid 30s above the inversion.
Highlights were allowed to expire for the lower elevations, and things look on track to expire the last existing one for the northern mountains at 5AM. Accumulations are expected to be light, with less than 3 additional inches expected at the highest elevations in Rocky Mountain National Park and the Indian Peaks. Temperatures are expected to be 10-20 degrees below normal across the plains today, staying in the 20s aside from the far northeastern corner of the forecast area where the low 30s will be possible. We'll likely mix out in most elevations, but some of the lower elevations along the South Platte river valley may struggle to fully mix out early in the week. We'll spend the middle of the week watching an upper level low stall meander towards the east, before it eventually strengthens and ejects into the plains.
- Building high pressure aloft brings dry and warmer weather through the work week. The blocking pattern will keep our region dry with a warming trend over the next few days. 19Z temps remain well below freezing (teens to lower 20s) so expect localized blowing and drifting snow to persist through the afternoon.
1035 AM MST Sun Jan 26 2025 - A wintry mix of fluffy snow, patchy freezing drizzle, and fog will linger into this morning. While there is still some uncertainty in timing, the moisture will get pushed out of our area sometime prior to this afternoon, as a trough to our northeast moves through the Central Plains. Meanwhile, a broad closed low continues to spin over the CA coast, helping to funnel in some more Pacific Moisture. High temperatures will generally be in the mid-30s to low-40s across most of the area, though portions of I-25 with lingering snow will likely remain around freezing.
340 PM EST Sun Jan 26 2025 A weak area of low pressure will bring clouds and increased rain chances for Monday.
1116 AM CST Sun Jan 26 2025 Surface analysis late this morning shows a weak cold front stretching from New England back through the Ohio and Lower Mississippi Valleys. The nearest precipitation is currently located over western sections of the Lower Mississippi Valley. Temperatures as of 10 AM CST are mainly in the lower to middle 40s across most of the area.
1028 AM MST Sun Jan 26 2025 -Dry and mild weather this week with breezy weather at times Western NOAM Rex block will support mild and dry weather this week as Pac air spreads back into the region under the bending upper ridge. Cold high pressure has allowed for clear skies, dry air, and light winds this morning. The only exception will be a backdoor cold front Wed, which will slow warming some, mainly across northwest through central SD.
1114 AM CST Sun Jan 26 2025 - Briefly cooler and mostly cloudy today, with highs near freezing, then warmer conditions are expected through the week with highs generally in the 40s.
(Through Monday) High pressure slides southeast as a weakening cold front approaches from the northwest. Otherwise, temps remain relatively steady, as the word "cold" in cold front is relative, luckily.
210 PM CST Sun Jan 26 2025 Tonight and Monday: Continued warmer through the period with widespread rain this evening that will begin to taper off from the northwest after midnight.
146 PM CST Sun Jan 26 2025 - Trending warmer for most of the week with multiple days of highs in the 40s.
UPDATE WAA ahead of the passing mid level trough axis has led to areas of flurries mainly in northwest MN, which should progress east- southeast through midday. Gradient and winds aloft have started to increased in ND behind this mid level trough, and gusts to 40 mph have been reported along/west of the RRV escarpment (some gusts around 30 mph in the valley).
1100 AM CST Sun Jan 26 2025 (Rest of Today) Virga and light showers are currently being observed moving across the TN Valley ahead of an approaching low pressure system currently located in east TX. This will gradually increase rain chances through the afternoon into the evening with the highest rain chances being overnight tonight into tomorrow.
A rather uneventful weather pattern is setting up over the area as high pressure takes over. Ridging aloft in the middle of the week will provide a little more subsidence, allowing for temperatures to increase further.
(Tonight through Monday night) Key Messages: -Cooler air behind a cold front will continue to filter into the area this afternoon and evening. -Moist Gulf air will lift over the cooler air and maintain cloudy skies and patchy drizzle overnight and on Monday. A cold front is pushing south through the area this afternoon and stretches west to east along U. Cooler air behind the front will continue to filter into the area, resulting in steady temperatures this afternoon, then slowly falling even before the typical diurnal cooling that occurs with sunset begins. Highs on Monday will be in the lower to mid 50s.
522 PM CST Sun Jan 26 2025 - Trending warmer for most of the week with multiple days of highs in the 40s.
Low clouds are still covering some of the Palmer Ridge and Lincoln County. There are some 30s over the northern and northeastern border areas and the Palmer Ridge at this time.
604 PM CST Sun Jan 26 2025 Tonight and Monday: Continued warmer through the period with widespread rain this evening that will begin to taper off from the northwest after midnight.
This will allow for an increasing chance of rain showers tonight into Monday as a cold front approaches from the northwest.
549 PM CST Sun Jan 26 2025 A weak trough will bring additional rain chances to the Mid-South this evening.
/Issued 106 PM MST Sun Jan 26 2025/ - Meteorological Overview: Upper level ridging centered just off the west coast will largely remain in place through much of the upcoming week thanks to a persistent cutoff upper level low across the Southwest CONUS.
The warm front remains stationary along I-10 with 60+ dew points and our warmest site is Peason Ridge at 56. Our next cold front and arriving air mass is 1033mb over KN/MO and will sink southward overnight with NE winds 5 to 10 mph.
947 PM EST Sun Jan 26 2025 High pressure will build into the Ohio Valley tonight before shifting off to the south on Monday. A mid level trough axis will drop down across the Great Lakes Monday into Monday night.
- Ensembles bring temperatures cooler and closer to normal for the first full week of February. Current forecast highs are in the low to mid 50s, but it wouldn't shock me if one or two spots hit 60F even on Mon.
- A closed low will drift along our southern border bringing some light snow to the San Juans from Monday night through the end of the week. Well defined rotation can be seen off the California coast this afternoon where a closed low is currently located. On Monday, the closed low takes an easterly turn and by noon, the center of the low will be just south of Las Vegas. The low will continue to track eastward through the day as broad south through southeasterly flow sets up across the region.
Low clouds look to set in around sunrise and stick around for a good part of the day with some improvements by the evening with the passage of a cold front. (This afternoon through Monday) At a glance: - A weak cold front will bring less than a quarter inch of rain beginning tonight and going into tomorrow. Rain will become more widespread after midnight which will help moderate overnight lows to the 40s rather than freezing temperatures that we've seen for nearly the past week.
Zonal flow aloft combined with the weakening high pressure area over the region will keep the atmosphere dry for FL as temps only fall to near seasonal normals tonight. A rather uneventful weather pattern is setting up over the area as high pressure takes over. Ridging aloft in the middle of the week will provide a little more subsidence, allowing for temperatures to increase further.
545 PM CST Sun Jan 26 2025 (Tonight through Monday night) Key Messages: -Cooler air behind a cold front will continue to filter into the area this afternoon and evening. -Moist Gulf air will lift over the cooler air and maintain cloudy skies and patchy drizzle overnight and on Monday. A cold front is pushing south through the area this afternoon and stretches west to east along U. Cooler air behind the front will continue to filter into the area, resulting in steady temperatures this afternoon, then slowly falling even before the typical diurnal cooling that occurs with sunset begins. Highs on Monday will be in the lower to mid 50s.
635 PM EST Sun Jan 26 2025 A weak area of low pressure will bring clouds and increased rain chances late tonight and Monday.
657 PM EST Sun Jan 26 2025 High pressure will build into the Ohio Valley tonight before shifting off to the south on Monday. A mid level trough axis will drop down across the Great Lakes Monday into Monday night.
236 PM MST Sun Jan 26 2025 KEY MESSAGES: 1) High pressure will maintain dry and seasonable to above normal temperature conditions over the region this week. 2) Early signs suggest that a breakdown of the ridge may occur toward the upcoming weekend. WEATHER PATTERN OVERVIEW: Broad upper level ridging will remain in place this week with dry weather conditions. It stands to reason, that as the associated cold front tracks through the region that markedly colder temperatures will follow. Given broad upper ridging in place, confidence is extremely high for dry and seasonably mild weather conditions overall across the area this week. VFR conditions will continue tonight with high pressure remaining over the region in the coming days.
A weak trough will bring additional rain chances to the Mid-South this evening.
406 PM MST Sun Jan 26 2025 - Dry, becoming mild this week with breezy winds at times 19z surface analysis had sprawling high pressure over the CWA with plenty of sunshine. Water vapour loop showed upper trough south of the CWA, upper low over CA, and upper ridge building into southwest Canada.
Over the north half and Plateau, the incoming cold front will meet up with the light showers just in time to produce a few snowflakes before the precipitation exits. By the time temps are near freezing, the snowflakes will be ending, so potential for accumulation and travel impacts looks low. Elsewhere, the morning will start mostly cloudy with temps in the low to mid 30s. Most of what falls will remain in liquid form as we have plenty of warm air near the surface, but late tonight soundings show the temperature profiles falling below freezing mainly north of I-40, which will support at least a mix of rain and snow.
543 PM CST Sun Jan 26 2025 (Tonight through Monday night) A low to moderate (20-50%) chance of showers will continue through the evening over the Victoria Crossroads and Coastal Bend ahead of an approaching cold front.
643 PM EST Sun Jan 26 2025 (Through Monday) High pressure slides southeast as a weakening cold front approaches from the northwest. Otherwise, temps remain relatively steady, as the word "cold" in cold front is relative, luckily.
(This afternoon through Monday) At a glance: - A weak cold front will bring less than a quarter inch of rain beginning tonight and going into tomorrow. Rain will become more widespread after midnight which will help moderate overnight lows to the 40s rather than freezing temperatures that we've seen for nearly the past week.
607 PM CST Sun Jan 26 2025 (Tonight) Abundant cloud cover continues to blanket the TN Valley associated with an approaching low pressure system moving across the Gulf coast. This low pressure system will continue to progress NE through the near term and come into phase with a passing short wave.
Under the increasing influence of high pressure over the NRN Rockies early this week, quiet and dry conditions with plenty of sunshine will continue with cold mornings followed by afternoon highs in the 20s/30s. As a H5 ridge axis in the NE Pacific continues to shift east through the work week, temperatures will see a gradual warming trend with no additional cold weather headlines anticipated at this time.
347 AM EST Mon Jan 27 2025 A southward moving high pressure ridge situated over the southern CWA today will combine with a low well to the northeast in Canada to create strong winds this afternoon and early evening. The low level jet found between these systems will be at a maxima 2-3Z tonight and then drop off relatively quickly. An upper level trough axis with a weak influence on the Ohio Valley will cross the region tonight and bring cool northwest flow behind it. Tuesday highs will range from the mid 30s in the north to the mid 40s in the south as southwest winds pick up and bring in slightly warmer air.
An upper level ridge will build into the area from the NW through the short term, leading to an inversion and mostly clear skies.
No significant changes to the forecast for the remainder of tonight, with some light snow accumulations still expected across portions of the north and the higher elevations of the E TN mountains.
-IG /Issued 809 PM MST Sun Jan 26 2025/ - Meteorological Overview: Upper level ridging centered just off the west coast will largely remain in place through much of the upcoming week thanks to a persistent cutoff upper level low across the Southwest CONUS.
1022 PM CST Sun Jan 26 2025 (Tonight through Monday night) Key Messages: -Cooler air behind a cold front will continue to filter into the area this afternoon and evening. -Moist Gulf air will lift over the cooler air and maintain cloudy skies and patchy drizzle overnight and on Monday. A cold front is pushing south through the area this afternoon and stretches west to east along U. Cooler air behind the front will continue to filter into the area, resulting in steady temperatures this afternoon, then slowly falling even before the typical diurnal cooling that occurs with sunset begins. Highs on Monday will be in the lower to mid 50s.
(Today through Tuesday) A mid-level trough axis will push a frontal boundary into the southeastern United States today and pinch high pressure back over the peninsula of Florida.
High pressure remaining over northern California and southern Oregon will bring VFR conditions through the TAF period.
- Breakdown in ridge with increasing confidence in Arctic airmass intrusion (60-70% chance) by the end of the weekend. A high-amplitude blocking pattern over the western U. will keep the forecast area under the influence of an upper-level ridge over the next several days. Valley stratus will remain most prominent, dissipating during the afternoon hours within the Mission and Flathead Valleys with minor chances for patchy freezing fog and widespread colder-than- normal temperatures during the overnight and early morning hours elsewhere.
1121 PM CST Sun Jan 26 2025 A weak trough will bring additional rain chances to the Mid-South this evening.
A large range in temperatures is expected Today, as clouds and showers will keep area over SE GA cooler. Lows over SE GA will be in the low to mid 40s, and upper 40s to lower 50s over NE FL.
The cold front will clear the Mississippi Delta by Monday afternoon allowing cooler and dry air with NW breezes to return to the area. High temperatures will trend cooler toward the low 60's across the area while moisture aloft helps cloud cover hang in through the evening.
A cutoff upper low continues to drift southward into the Desert Southwest leading to cool and breezy conditions across the Great Basin through Tuesday. High pressure looks to build across the region through the week with gradually warming high temperatures back to above normal readings.
Currently at the surface, weak high pressure sprawled across Florida is keeping weak winds and mostly sunny skies in place today. Behind the front, high pressure will build into the area at both the surface and aloft, allowing temperatures to trend warmer during the second half of the week with afternoon highs running a few degrees above normal.
Large scale pattern features northwest flow over the Northern Plains today transitioning to split flow, a mid/upper low pressure over California becomes cutoff and transitions across the southern Plains. As temperatures rise near to just above freezing at some locations drifting snow does have the potential or melt/refreeze on surfaces during the daytime periods when there is more sunshine.
1238 AM EST Mon Jan 27 2025 High pressure will build into the Ohio Valley tonight before shifting off to the south on Monday. A mid level trough axis will drop down across the Great Lakes Monday into Monday night.
The pressure gradient will continue to tighten up tonight into Monday between high pressure over the Central Plains and a Canadian cold front sagging south toward the region. 850 mb CAA will help steepen the low-level lapse rates during the afternoon, though winds aloft will be easing a bit by then. The cold front will approach the region on Monday, with a few flurries or sprinkles possible in advance. In addition, a northward or southward shift in the track of the low could mean the difference between minimal or more significant accumulations.
At the surface we are in a slight low pressure trough between high pressure to our west over the southern plains and to the east over northern Florida. With this setup of flow regimes high temps tomorrow should be in the low 60s, normal for this time of year.
- A closed low will drift along our southern border bringing some light snow to the San Juans from Monday night through the end of the week. Well defined rotation can be seen off the California coast this afternoon where a closed low is currently located. On Monday, the closed low takes an easterly turn and by noon, the center of the low will be just south of Las Vegas. The low will continue to track eastward through the day as broad south through southeasterly flow sets up across the region. Low pressure will continue to lift into the Four Corners Tuesday. Deterministic models vary slightly on the track of this low as it works east.
125 AM MST Mon Jan 27 2025 - Dry, calm, and warmer through the workweek.
A few snowflakes could mix into the highest elevations of north Georgia this morning, but no accumulation is expected. Can't rule out a few snowflakes mixing in with rain in the highest elevations of north Georgia, but no accumulations will occur.
Large scale pattern features northwest flow over the Northern Plains today transitioning to split flow, a mid/upper low pressure over California becomes cutoff and transitions across the southern Plains. As temperatures rise near to just above freezing at some locations drifting snow does have the potential or melt/refreeze on surfaces during the daytime periods when there is more sunshine. During the time BLSN is possible for DVL, GFK, FAR, and TVF but visibility should remain P6SM due to the warmer temperatures.
From synopsis, high pressure will lengthen off the Carolina Coast and weaken over the next day or so. Modest ridging will remain to our north through mid week, maintaining generally gentle north to easterly breezes.
-IG /Issued 414 PM MST Sun Jan 26 2025/ - Meteorological Overview: Upper level ridging centered just off the west coast will largely remain in place through much of the upcoming week thanks to a persistent cutoff upper level low across the Southwest CONUS.
A sharp cold front will pass across the forecast area early Tuesday, perhaps bringing some snow showers and snow squalls in the morning.
The freezing line is still north of the TN/KY border but some areas may still experience a wintry mix later tonight before the precipitation ends altogether.
1222 AM MST Mon Jan 27 2025 -Dry and mild weather this week -Breezy at times, especially today across northwest SD -Turning cooler and unsettled later this weekend Western NOAM Rex block will support mild and dry weather this week as Pac air spreads back into the region under the bending upper ridge. Low pressure trough will advect through the region today and act as a warm front as Pac air spreads back into the region. Much warmer today most places, although temps will be tricky where snow pack remains, today and the rest of the week. Mild weather will persist through the end of the week at which time a deep upper trough will shift south into the northern CONUS.
- Above freezing high temperatures will occur several times this upcoming week, mainly for the southern portions of the Northland. A tightening pressure gradient caused by an low-pressure system moving from northern Manitoba into Ontario, combined with high pressure over the southern Great Plains, will bring strong winds to the North Shore this morning. In addition to the winds, light snow showers and blowing snow are anticipated as a cold front sweeps through today. Temperatures on Monday and Tuesday will be unseasonably warm, with highs likely above freezing across the southern half of the forecast area.
1009 PM MST Sun Jan 26 2025 - Dry, becoming mild this week with breezy winds at times 19z surface analysis had sprawling high pressure over the CWA with plenty of sunshine. Water vapour loop showed upper trough south of the CWA, upper low over CA, and upper ridge building into southwest Canada.
This front is expected to ease through the BRO CWFA as a weak cold front today and tonight, generating isolated to scattered convection. However, on Tuesday, dry weather will return to the region as the aforementioned weak cold front transitions into a warm front and retreats to the north and out of the BRO CWFA. Temperature-wise, despite the presence of the cold front, above normal daytime highs and overnight lows are anticipated. Even warmer values, well above normal highs, are forecast for Tuesday in the wake of the north-moving warm front.
631 AM CST Mon Jan 27 2025 (Today through Tuesday) This AM areas of rain are present across C AL ahead of a cold front. Cooler temperatures are expected for tonight behind the front as clouds clear across the NW 1/2 and decrease across the SE. Lows will run from the mid/upper 20s N to the low/mid 30s S. Ample sunshine is expected for Tuesday as surface ridging settles over the Deep South with highs expected in the 50s and possibly a few lower 60s in the far S.