Aikyam-Lab/Synoptic-Bench huggingface dataset:
Isolated showers or thunderstorms are possible late this evening into Saturday as a cold front passes, before high pressure and dry conditions return for the start of Thanksgiving week. This is due to upper ridging and warm advection ahead of the next weather system. Dew points also look to be toward the low to mid 60s so it should feel unseasonably humid as well during the afternoon.
450 AM MST Fri Nov 21 2025 - Daytime temperatures today will run about 5 degrees cooler than yesterday. - Mostly dry and just a few degrees warmer for the weekend. The main focus this forecast package is the threat of dense fog/freezing fog again this morning. Below freezing temperatures could result in ice being deposited on roadways. As the upper low along the CA coast continues tracking southward, weak ridging will begin to build in today from the West, resulting in fewer clouds come afternoon and a continuation of light winds. Daytime temperatures will run around 5 degrees cooler than yesterday. Deep low over the southwest states ejects eastward with upper ridge for East Idaho over the weekend.
208 AM MST Fri Nov 21 2025 - Daytime temperatures today will run about 5 degrees cooler than yesterday. - Mostly dry and just a few degrees warmer for the weekend. The main focus this forecast package is the threat of dense fog/freezing fog again this morning. Below freezing temperatures could result in ice being deposited on roadways. As the upper low along the CA coast continues tracking southward, weak ridging will begin to build in today from the West, resulting in fewer clouds come afternoon and a continuation of light winds. Daytime temperatures will run around 5 degrees cooler than yesterday. Deep low over the southwest states ejects eastward with upper ridge for East Idaho over the weekend.
- Rain is spreading north this morning, with the highest rainfall totals expected to be south of a Shelby to Edgar county line.
154 PM EST Fri Nov 21 2025 An occluded front will cross tonight then exit across the Maritimes Saturday as low pressure tracks well south of Maine.
Severe to Extreme Drought Expanding Across Inland Southeast GA & the High pressure ridge will sink to the south through the night. The position of the ridge will yield a flow from the southwest. High pressure over the Florida peninsula will continue to shift off to the east as a cold front presses down from out of the north and slowly stalls over the region by the end of the weekend. High temperatures for this weekend will be in the upper 70s and lower to mid 80s with overnight low temperatures dropping down into the lower 60s and 50s with cooler temps over inland southeast Georgia.
Updated at 1141 AM CST Fri Nov 21 2025 - Cold front moving through today will drop temperatures closer to seasonal normals for this weekend.
1223 PM EST Fri Nov 21 2025 Widespread rainfall persists through the evening before high pressure builds in for the weekend bringing dry conditions.
1114 AM CST Fri Nov 21 2025 - Rain is spreading north this morning, with the highest rainfall totals expected to be south of a Shelby to Edgar county line.
A cold front mid-week looks to bring more seasonable temperatures to the area.
1257 PM EST Fri Nov 21 2025 Showers and hilltop low clouds and fog will dissipate tonight behind a recently departed cold front. High pressure sliding across the region tomorrow will grant fair weather, with variable cloudiness and afternoon temperatures just a few degrees below normal.
/issued 737 AM PST Fri Nov 21 2025/ Areas of Dense Freezing Fog are currently observed via visible satellite imagery and webcams, which has warranted the issuance of a Freezing Fog Advisory across the Lower Columbia Basin of Oregon and Washington as visibilities as low as a quarter mile and freezing temperatures are currently being observed. Quiet weather is expected to prevail heading into the weekend as a high pressure ridge settles over the PacNW. With high pressure in place, these low clouds will struggle to lift as well, so many of our low-lying areas may see overcast conditions persist well into the day once they form.
158 PM EST Fri Nov 21 2025 A weak wave of low pressure will pass DELMARVA overnight and spread light rain into northeast Pennsylvania.
Guidance suggest the low clouds and fog should break out around noon ot early afternoon, and adjustments have been made to the forecast this morning to account for this. Once the low clouds burn off, it will be dry, but afternoon temperatures could end up lower where the low clouds and fog are persistent and the forecast high for this afternoon have slow been ajusted lower to account for this.
Saturday, ridging and high pressure builds into the area.
- Quieter conditions will return for much of the upcoming weekend with the passage of a weak cold front tonight.
1150 AM EST Fri Nov 21 2025 Rain chances return tonight into Saturday morning as an area of low pressure and series of fronts cross the region.
1037 AM MST Fri Nov 21 2025 - Daytime temperatures today will run about 5 degrees cooler than yesterday. - Mostly dry and just a few degrees warmer for the weekend. The main focus this forecast package is the threat of dense fog/freezing fog again this morning. Below freezing temperatures could result in ice being deposited on roadways. As the upper low along the CA coast continues tracking southward, weak ridging will begin to build in today from the West, resulting in fewer clouds come afternoon and a continuation of light winds. Daytime temperatures will run around 5 degrees cooler than yesterday. Deep low over the southwest states ejects eastward with upper ridge for East Idaho over the weekend.
High pressure remains the dominate synoptic feature across South Florida heading into tonight and then again on Saturday keeping the dry conditions in place. High temperatures today and tomorrow will reach the lower 80s along the coastline, with mid to upper 80s possible for portions of interior South Florida.
Isolated showers or thunderstorms are possible late this evening into Saturday as a cold front passes, before high pressure and dry conditions return for the start of Thanksgiving week.
* A warming and drying trend will begin tomorrow evening, with breezy northerly winds over the Lower Colorado River Valley anticipated midweek thanks to northwest flow aloft. The low pressure system that has brought ample moisture to the region the last few days will meander into northern Mexico this evening.
701 PM EST Fri Nov 21 2025 Scattered showers possible late this evening into Saturday as a cold front passes. Near record temperatures again Saturday before high pressure and dry conditions return for the start of Thanksgiving week.
538 PM CST Fri Nov 21 2025 Updated at 1141 AM CST Fri Nov 21 2025 - Cold front moving through today will drop temperatures closer to seasonal normals for this weekend.
837 PM CST Fri Nov 21 2025 - Patchy fog & freezing fog possible tonight in the Wisconsin River Valley.
508 PM CST Fri Nov 21 2025 - Warmer temperatures returning to southwest Kansas this weekend.
With high pressure in control and clear skies expected overnight, LIFR conditions in fog/low clouds are expected to return to area valleys again tonight into Saturday morning between 09-12z. Dry weather is likely the rest of today through Saturday as upper ridging nudges in from the west. The upper flow will likely remain westerly with the ridge remaining over the area Saturday.
During the overnight, an upper trough will move through. Drier air will work into the area as high pressure moves south. Clouds will keep temperatures from falling too much tonight, even after the area of low pressure exits to the east. On Saturday, will go a little cooler than guidance for highs given the more pessimistic cloud cover forecast.
612 PM EST Fri Nov 21 2025 Widespread rainfall persists through the evening before high pressure builds in for the weekend bringing dry conditions.
546 PM EST Fri Nov 21 2025 Showers and hilltop low clouds and fog will dissipate tonight behind a recently departed cold front. High pressure sliding across the region Saturday will grant fair weather, with variable cloudiness and afternoon temperatures just a few degrees below normal.
202 PM PST Fri Nov 21 2025 * Dry weather with cold mornings and gusty ridge winds will prevail this weekend.
A few minor changes made to the existing forecast, mainly to refine fog in the grids, as high pressure at the surface and aloft continue to support mostly benign conditions locally aside from potential late night/early morning fog development. Warm and dry conditions otherwise continue with morning lows in the mid 50s to lower 60s and afternoon highs in the lower to mid 80s.
639 PM EST Fri Nov 21 2025 An occluded front will cross tonight then exit across the Maritimes Saturday as low pressure tracks well south of Maine.
831 PM CST Fri Nov 21 2025 - Warmer temperatures returning to southwest Kansas this weekend.
Dry weather is likely the rest of today through Saturday as upper ridging nudges in from the west. The upper flow will likely remain westerly with the ridge remaining over the area Saturday.
540 PM CST Fri Nov 21 2025 - Quieter conditions will return for much of the upcoming weekend with the passage of a weak cold front tonight.
Southern California is still being influenced by a strong upper low that continues to drift south into Mexican waters.
650 PM EST Fri Nov 21 2025 A weak wave of low pressure will pass DELMARVA overnight and spread light rain into northeast Pennsylvania.
133 AM EST Sat Nov 22 2025 High pressure will slide across the region today with clouds gradually clearing through the day.
130 AM EST Sat Nov 22 2025 Scattered showers possible this morning and through the day as a cold front passes. Near record temperatures again this afternoon before high pressure and dry conditions return for the start of Thanksgiving week. PWATs will continue to increase today ahead of a cold front with persistent west/southwest flow aloft. The front pushes through the forecast area this evening, with drier and cooler air filtering in behind it. Lows may be limited somewhat by lingering cloudiness, but will still fall into the low to mid 50s.
LIFR conditions in fog/low clouds have already returned to the Umpqua and Coquille Basins, and are developing in the lower portions of the Rogue Valley (Grants Pass/Medford area). LIFR conditions should fill in the rest of the Rogue/Illinois Valleys tonight with the lower conditions prevailing through Saturday morning. Dry weather is likely the rest of today through Saturday as upper ridging nudges in from the west. The upper flow will likely remain westerly with the ridge remaining over the area Saturday.
A closed low is currently sitting off the northern coast of the California Baja.
High pressure surface and aloft will hold over the region today with continued mostly sunny skies and above normal temperatures.
1027 PM EST Fri Nov 21 2025 Hilltop low clouds and fog will dissipate tonight behind a recently departed cold front. High pressure sliding across the region Saturday will grant fair weather, with variable cloudiness and afternoon temperatures just a few degrees below normal.
1112 PM CST Fri Nov 21 2025 - Warmer temperatures returning to southwest Kansas this weekend.
110 AM EST Sat Nov 22 2025 Skies will finally clear today into this evening as high pressure builds in.
127 AM MST Sat Nov 22 2025 - Patchy to dense fog over the eastern CWA is occurring and should remain above freezing. - A 50-60% chance of freezing fog across southwestern portions of the area early this morning, leading to slick elevated surfaces, such as bridges.
(Tonight through Sunday) A weak, northwest to southeast oriented cold front has pushed through much of the region just before midnight. The rest of today should be quiet with upper ridging over the region through today ahead of the next upper system which is expected to reach the Four Corners region by late tonight.
746 AM EST Sat Nov 22 2025 Skies will finally clear today into this evening as high pressure builds in.
Cold air will quickly be pulled east of the area with high pressure and offshore flow generating quick warming and drying into the weekend.
Updated at 111 AM PST Sat Nov 22 2025 - Benign weather conditions continue through the middle of the week - Coastal stratus returns tonight, but clear during the daytime - Pattern change arrives after Thanksgiving, with details highly unclear (Today and tonight) The skies remain clear so far tonight with some assistance from light offshore flow stemming from the interaction between an upper level low centered off the coast of Baja California and a building ridging pattern coming in behind it. High temperatures today should range in the middle to upper 60s in the inland valleys, to the upper 50s and the lower 60s along the Pacific coast. This evening, a marine layer should redevelop and bring stratus back to the immediate coastal areas, although the developing upper-level ridge should keep the marine layer rather compressed and inland stratus development unlikely.
Light winds Today will give way to increasingly breezy southwesterly surface winds for Sunday as the High pressure moves away, pressure falls and a cold front approaches the area from be PAC NW for late Sunday and Sunday night.
An active pattern continues through this weekend as another weather system arrives late today through Sunday bringing rain and cooler temps.
Light precipitation along the northwest side of an upper level low will bring light precipitation to portions of southern Utah Sunday.
628 AM EST Sat Nov 22 2025 Skies will finally clear today into this evening as high pressure builds in.
204 AM MST Sat Nov 22 2025 KEY MESSAGES: - Sunday Night Cold Front: Burst of moderate to heavy snow and gusty wind over mountain passes.
They are also in fairly good agreement with the low ejecting to the northeast moving over Baja by this evening, pushing into Arizona Sunday morning and tracking over the Four Corners through Sunday afternoon before shifting east of the Divide Sunday evening. There is some discrepancy between the deterministic models with the European running slightly slower and tracking the low farther north than both the GFS and Canadian models, and this is in better agreement with the ensembles. Expect minor impacts to travel in the southern Colorado mountains Sunday due to roads becoming icy and snowpacked over the higher passes.
As of this writing, a low pressure system continues to spin off of the coast of Baja California and is expected to finally move onshore by Saturday evening. By Sunday morning, the center of low pressure at H500 should be moving over western Arizona. If the activity can tap into the low amounts of instability, thunderstorms may form and moderate rainfall may lead to some of those locally higher amounts.
1257 AM CDT Wed Aug 28 2024 - A cold front may bring more widespread showers and storms to the area later Thursday into Thursday night. - Cooler temperatures are forecast by late in the week with highs in the upper 70s to low 80s. A cold front stretched from near KMSP southwestward into north central Iowa and into south central Nebraska. Dewpoints are in the lower to mid 70s across the area. Tonight will be warm and muggy with lows ranging from the upper 60s northwest of Cedar Rapids to the lower 70s at other locations. A stronger cold front will move through the area Thursday night bringing showers and storms to much of the area.
119 AM CDT Wed Aug 28 2024 Outflow boundaries, in combination with forcing from the upper level low, produced scattered showers and storms, late this afternoon and into the early evening along the Rio Grande and in the San Antonio metro area. (Tonight through Wednesday night) Regional radar imagery continues to light up with convection swirling around the upper low currently centered over Menard County in the SJT CWA. The upper low should get absorbed into the long wave flow by Wednesday, with much lower chances at showers and storms expected.
we took out the low Pops for central zones tomorrow as it just looks to dry. BT Challenging wind forecast for late tonight into Wednesday as models differ with wind speed depictions with a cold front progged to move into the western/central zones late tonight. HREF had highest strong wind probabilities over the high terrain for tonight and Wednesday. Another cold front crosses the area Wed. night as an upper low moves E through N. Dry NW flow overtakes the area on Thursday and it will be a bit warmer, but temps will still be below normal. Arthur An upper level ridge over the region will keep conditions calm and dry through the weekend.
(Today through Thursday) A broad unstable pattern sits over much of Texas, with much of the lift being provided by a mid to upper level low. While the upper level portion of the low is holding nearly stationary over South TX, the mid level low/shear axis is shifting into West TX while another mid level shear feature is on track to amplify near Houston later tonight and into East TX Thursday.
Temperatures behind the cool front that brought the overnight/morning rain are 10-15+ degrees cooler than yesterday, and will sit around seasonal average for areas that saw some sun today, and below seasonal average for areas socked in with clouds. Wednesday will remain cool and dry as we sit under upper level ridging between a departing system and an approaching system. Thursday, an strong upper level low approaches from the Northern Plains, riding the US/CA border, bringing with it a front that will push through the region Thursday afternoon from west to east.
415 AM CDT Wed Aug 28 2024 Forecast discussion for routine morning forecast issuance - Cooler and less humid today.
Calm, warmer than normal temperatures will continue today. High pressure has built over the area over the past 24 hours.
551 AM CDT Wed Aug 28 2024 (Today through Thursday afternoon) A gradual moistening trend will continue today as a 850-700 mb ridge becomes positioned to our east.
625 AM CDT Wed Aug 28 2024 (Today through Thursday night) A quiet day today as we remain under the influence of weak high pressure.
Upper level ridging and the surface thermal trough will return in force this week, with hot and dry conditions and mostly clear skies expected through the weekend. Temperatures today will be near normal for this time of year, with the exception of the coast, where the thermal trough currently resides and high temperatures will be about 5 to 10 degrees above normal.
Cooler temperatures for all and high elevation snows are expected in the Mission Mountains and Glacier National Park above 5500'.
654 AM CDT Wed Aug 28 2024 (Today through Thursday) A broad unstable pattern sits over much of Texas, with much of the lift being provided by a mid to upper level low. While the upper level portion of the low is holding nearly stationary over South TX, the mid level low/shear axis is shifting into West TX while another mid level shear feature is on track to amplify near Houston later tonight and into East TX Thursday.
608 AM CDT Wed Aug 28 2024 (Today) The upper level ridge remains strong across the Southeast today allowing for another very hot day.
618 AM CDT Wed Aug 28 2024 Updated aviation portion for 12Z TAF issuance - Cooler and less humid today.
(Rest of Today) High pressure has shifted slightly east this morning, but still remains centered over eastern Alabama/Tennessee into northern Georgia and the Carolinas. Lowered afternoon dewpoints some into the lower to mid 50s (mainly near and north of the Tennessee River).
Persistent onshore flow will keep coastal highs in the mid to upper 80s, with near normal inland highs in the lower 90s today.
Look for isolated to scattered showers and thunderstorms each afternoon/evening, especially over the higher terrain.
This deep layer ridging will allow high temperatures to remain about 3 to 7 degrees away from the coast, and low temperatures about 4 to 8 degrees above normal most areas. Made slight upward adjustments to the NBM for the high temperatures today and Thursday.
559 AM CDT Wed Aug 28 2024 (Tonight through Thursday night) Key Message: - Potential for tropical funnel clouds and waterspouts today - Medium to high (50-65%) chance of showers and thunderstorms today Although the mid-level low from earlier in the week is now to our north over Central Texas, another mid-level low is expected to develop over the northwestern Gulf of Mexico and cause inverted troughing over the Texas Coast today into the late week. Troughing, in addition to surface heating, the seabreeze, and PWATs nearing 2. Typical summer night lows tonight ranging from the mid 70s inland to the lower 80s along the coast.
A dry cold front will bring gusty winds throughout southwest Wyoming and much of Utah Wednesday.
610 AM CDT Wed Aug 28 2024 (Today and tonight) An inverted upper trough over South Texas drift westward toward the Trans Pecos while weakening. Meanwhile weak mid to upper level flow will remain over the forecast area between a sharper trough moving eastward over the northern Rockies and a ridge over the lower Mississippi Valley and points eastward. The inverted trough should spark scattered showers and thunderstorms across the eastern Permian Basin and the Big Country with some of this activity possibly drifting as far northward as the southeastern part of the forecast area. Convective initiation on the high terrain of central New Mexico where best forcing and monsoonal moisture exists should be too far west given the weak mid level flow for that activity to enter the forecast area this evening.
Temperatures are already in the low to mid 80's and will top out in the low to mid 90's this afternoon. The Florida peninsula remains under control of high pressure to the north, which will keep us in a predominant easterly wind flow once again today.
630 AM CDT Wed Aug 28 2024 (Today and tonight) An already weak upper low was over western Sutton County at 1 AM. This low will further weaken over our area today. Overnight lows will be in the in the upper 60s to lower 70s in our southern and central counties, and in the lower 70s across the Big Country.
- A stronger cold front moves through on Thursday bringing the potential for additional showers and thunderstorms throughout the day.
/Issued 103 PM CDT Wed Aug 28 2024/ /Through Thursday afternoon/ Another seasonably warm afternoon is in store for us as temperatures climb into the low 90s (as of 1 pm). A fairly unstable pattern will remain in place across our region with a mid-upper level low to our west and another disturbance to our south in the Gulf of Mexico. This is the area where we expect the higher coverage of rain/storms on Thursday, still fairly scattered (30-40% PoPs).
1207 PM CDT Wed Aug 28 2024 (Today and tonight) An inverted upper trough over South Texas drift westward toward the Trans Pecos while weakening. Meanwhile weak mid to upper level flow will remain over the forecast area between a sharper trough moving eastward over the northern Rockies and a ridge over the lower Mississippi Valley and points eastward. The inverted trough should spark scattered showers and thunderstorms across the eastern Permian Basin and the Big Country with some of this activity possibly drifting as far northward as the southeastern part of the forecast area. Convective initiation on the high terrain of central New Mexico where best forcing and monsoonal moisture exists should be too far west given the weak mid level flow for that activity to enter the forecast area this evening.
In between these lows, there is a cold front extending from north to south. Strong to severe storms are expected along this boundary (and the low level jet) by late this evening into the overnight hours. In the 10 pm to 1 am time frame, the low level jet kicks up to the 50 to 60 knot range. The high precipitable water values are also a concern, but the storms do look to be progressive. The low level jet is pretty impressive tonight, cranking up to 45 to 55 knots across the FA.
Key Messages: - Isolated to scattered rain and lightning storms each day with the highest chances focused inland each afternoon - Moderate HeatRisk each afternoon as heat index values reach 100-106 degrees Now-Tonight.