Aikyam-Lab/Synoptic-Bench huggingface dataset:
(Tonight through Wednesday night) An anomalous upper-level ridge is holding firm over Texas and will continue to do so through Wednesday. Upper-air observations and models indicate max 500mb heights near 594-595 dm, signifying a ridge about as strong as historically observed for this time of year. While the lower sun angle, easterly low to mid-level winds, and marginal moisture return are helping to partly mitigate higher temperatures being realized at the surface, abnormal daytime warmth continues with highs remaining 5 to 10 degrees above average for mid- October. A weak mid- level inverted trough is currently trekking across South Texas and will bring some shallow added moisture to the Rio Grande overnight, but rain chances are kept out of the forecast with modeled moisture profiles remaining very dry aloft.
(Rest of today through Wednesday) Upper level ridge is set up over the central part of the country. We won't see much change in the forecast as we head into Wednesday as we remain on the eastern part of the ridge. Until then the upper level ridge will build east keeping warm and dry conditions in place through the end of the week.
1216 PM CDT Tue Oct 14 2025 - High pressure keeps us dry and seasonally mild for the rest of the work week.
1221 PM CDT Tue Oct 14 2025 (Today through Wednesday) Sunny and unseasonably warm conditions are expected to continue today and tomorrow as the deep-layer ridge builds over the ArkLaTex. Weak height rises will occur today, allowing highs to reach about a degree or two warmer than yesterday with many locations warming into the mid 80s. North to northeasterly surface flow and clear skies will support a cool night with lows in the lower to mid 50s. Some of the cooler valley locations in our northeast may fall into the upper 40s shortly before sunrise. The ridge axis will shift slightly east as a deep upper-level trough begins to move towards the Four Corners.
210 PM EDT Tue Oct 14 2025 High pressure will build through Wednesday leading to a warming trend. A passing dry cold front Wednesday night will usher in the coolest air since Spring.
1246 PM CDT Tue Oct 14 2025 The weather will remain rather benign through most of the week as sprawling high pressure remains in place across most of the eastern CONUS. Light northerly/northeasterly flow will gradually become more easterly with time as the high shifts to the eastern seaboard. The next chance of rain will be over the weekend as an upper trough and associated cold front approach the area.
153 PM EDT Tue Oct 14 2025 High pressure will offer quiet and dry conditions through the work week.
145 PM EDT Tue Oct 14 2025 Dry and warmer conditions are expected through Wednesday as temperatures climb above normal.
At the upper levels, ridging will continue to keep drier air across much of the South. On the southern periphery of this ridge, an inverted trough is circling around the ridge with a more inverted trough like feature moving onshore late Wednesday and being absorbed into a trough moving in from the Intermountain West.
Weak instability should allow additional shower and isolated thunderstorm development across the higher terrain of southwest Idaho this afternoon and early evening. The parent upper low driving this pattern, currently centered along the central California coast, will lift northeast tonight and send additional showers into mainly southwest Idaho.
1142 AM CDT Tue Oct 14 2025 - Showers and an isolated thunderstorm possible through the day with cooler temperatures - Fog potential Wednesday morning across the northern Sandhills into north central Nebraska - Temperatures warm on Wednesday with the next chance of showers and thunderstorms, with the chance for isolated severe storms The main concerns in the short term will be precipitation chances through today and the cooler temperatures, along with fog potential early Wednesday morning. As a sw trof moves into the area will see shower activity increase this morning. Kept temperatures trending cooler as the combination of showers and increasing low cloud coverage through the peak heating hours is expected, highs will generally be in the 50s to low 60s. For Wednesday, it will be a brief warm-up as WAA increases with the lifting warm front.
Southeast Georgia Beaches by this Evening - Small Craft Advisory Returns Wednesday Outer Waters (Rest of today through Tonight) Generally high pressure dominates the region with pleasant temps mostly in the 80s, except for mid to upper 70s along the coast from onshore. A weak trough of low pres/re-enforcing backdoor front expected to move into the region later tonight. This will bring in some low level moisture and a bit cooler airmass going into Wed.
135 PM EDT Tue Oct 14 2025 * Cloud cover decreases this evening with some lingering clouds in the Lower Susquehanna Valley into Wednesday morning.
A low pressure system continues to move south of the Pacific Northwest into northern California, allowing skies to stay clear and offshore flow to increase this afternoon.
The weather will remain rather benign through most of the week as sprawling high pressure remains in place across most of the eastern CONUS. Light northerly/northeasterly flow will gradually become more easterly with time as the high shifts to the eastern seaboard. The next chance of rain will be over the weekend as an upper trough and associated cold front approach the area.
Ridge-trough. Ridge-trough. Steady signal in the GEFS and EPS with a progressive upper level flow pattern that sashays ridges and troughs west to east across the CONUS, with each feature holding court for about 2 days before giving way to the next.
-A Coastal Flood Statement remains in effect for the Lower and Middle Keys. Outflow from yesterday's convection over Cuba pushed north through the Straits of Florida developing showers that ultimately crossed through the Lower and Middle Keys before sunrise. Despite some of the extra cloud cover, temperatures are still hovering near or just above 80 with dewpoints still stuck in the lower to mid 70s. Breezes are also expected to slacken starting tonight into tomorrow as high pressure takes over the Eastern Seaboard. From synopsis, a low pressure system developing off the Eastern Seaboard and a high pressure system over the eastern United States will allow moderate to fresh breezes today and tonight. By the end of the week, high pressure will set up along the Carolina coast and support freshening breezes.
(Rest of Today and Tonight) Temperatures have climbed into the lower to mid 70s in many areas. Temperatures should fall into the lower to mid 50s again tonight with clear skies.
622 PM CDT Tue Oct 14 2025 - High pressure keeps us dry and seasonally mild for the rest of the work week.
Outside of some isolated to scattered showers and storms that continue into the evening hours, our next concern is a frontal passage associated with low pressure center currently located along the central California coast. Impacts remain limited to the highest elevations but we may see some of our highest accumulations of the season thus far.
626 PM CDT Tue Oct 14 2025 The weather will remain rather benign through most of the week as sprawling high pressure remains in place across most of the eastern CONUS. Light northerly/northeasterly flow will gradually become more easterly with time as the high shifts to the eastern seaboard. The next chance of rain will be over the weekend as an upper trough and associated cold front approach the area.
An upper level ridge will continue to provide dry conditions along with seasonal daytime temperatures and cool nights through Wednesday.
802 PM EDT Tue Oct 14 2025 High pressure remains in place through Wednesday before a reinforcing dry cold front moves through Wednesday night, with temperatures several degrees cooler behind the boundary. - A dry cold front moves through late Wednesday into Wednesday night ushering in a cool, dry air mass.
754 PM EDT Tue Oct 14 2025 High pressure will offer quiet and dry conditions through the work week.
837 PM EDT Tue Oct 14 2025 * Cloud cover decreases this evening with some lingering clouds in the Lower Susquehanna Valley into Wednesday morning.
Otherwise, high pressure building into the eastern half of the U. Accompanying this high pressure is additional dry air and therefore, rain chances will be limited to the Straits of Florida overnight. The Middle and Lower Keys remain in a Coastal Flood Statement as minor saltwater flooding will occur during the times of the higher high tide. From synopsis: a low pressure system continues to push off and away from the Eastern Seaboard, while a high pressure system builds over the eastern United States. Slackening winds are expected on Wednesday as the low moves further east across the North Atlantic. By the end of the week, high pressure will set up along the Carolina coast and support freshening breezes.
730 PM EDT Tue Oct 14 2025 Dry and warmer conditions are expected through Wednesday as temperatures climb above normal.
852 PM EDT Tue Oct 14 2025 Coastal low pressure moves away from the Mid-Atlantic tonight. A cold front moves through the area on Wednesday.
Impressively deep troughing continues to sit over central California with associated southwest flow over southeastern Arizona. The mid to upper level trough will move east through the western CONUS over the coming days, keeping southeastern Arizona in a period of below normal temperatures. With the cooler and drier air moving in, the forecast will also be dry for the coming week. Morning lows will be noticeably chillier with the first cooler push of the season underway.
Satellite imagery shows widespread stratus across western Montana this evening, with an upper level low spinning northeast of Missoula.
608 PM EDT Tue Oct 14 2025 High pressure will extend into the region this week. A dry cold front will drop south through the area Wednesday night. Another cold front could impact the area late in the weekend.
At 8 PM PDT satellite imagery showed upper low over central California, and cloud tops rapidly cooling in northern Nevada and shifting north. Models move pcpn into southern ID overnight as the low moves eastward into NV, then into UT Wednesday evening.
Warm, dry, and windy conditions were observed today as our area of high pressure remains aloft. As mentioned in yesterday's afternoon update, winds were a bit more breezy this afternoon as a thermal trough developed over the area. Lows tonight drop into the low 50s for most, some will see upper 40s across the Plateau. (Rest of today through Wednesday) Upper level ridge is set up over the central part of the country. We won't see much change in the forecast as we head into Wednesday as we remain on the eastern part of the ridge. Until then the upper level ridge will build east keeping warm and dry conditions in place through the end of the week.
730 PM EDT Tue Oct 14 2025 High pressure will build from the OH and TN Valleys to the southern Appalachians.
722 PM EDT Tue Oct 14 2025 High pressure will build through Wednesday leading to a warming trend. A passing dry cold front Wednesday night will usher in the coolest air since Spring.
615 PM CDT Tue Oct 14 2025 Updated at 614 PM CDT Tue Oct 14 2025 - Drier and cooler tonight with some low clouds by Wednesday morning over the far southwest South Plains.
Multiple rounds of showers with a few thunderstorms will continue as low pressure eventually moves across the southeast corner tomorrow night. We pushed it back toward the lowest end of the range. As the low moves across our territory tomorrow night, we pushed snow levels down to around 6500-7000ft. That is still 300-500 HIGHER than the lowest end. The day begins Thursday with an upper low centered near the far SE corner of the Gem State. Thursday will remain well below normal temperature wise with 40s and low 50s across the western half of the area with 30s and 40s for our eastern zones (closer to the low). Cold temperatures in the eastern highlands will support some accumulating snowfall across the higher terrain (above 7000 ft) on Thursday.
213 AM EDT Wed Oct 15 2025 A cold front will pass today, with high pressure then in control through the weekend.
1058 PM MDT Tue Oct 14 2025 -Unsettled through Thursday -Fog and drizzle tonight, mainly on the SD Plains, possibly lingering through the day in the eastern Black Hills foothills -Good chance of rain and a few TS Wed night, esp northeast WY and far Western SD -Drying out this weekend, with seasonal temps Deep upper trough over the western CONUS will support unsettled weather the next couple days. The main upper trough will begin to move into the region tonight with very moist southerly flow developing. Thus, that's where the highest pops reside. Drier and slightly cooler air will move into the region for Fri and esp Sat.
Early morning RAP analysis and GOES satellite imagery reveal a deep trough encompassing much of the western CONUS as a closed upper low digs south down the California coastline. Meanwhile, the deep trough upstream sets up over the Rockies and a series of troughs moves over eastern Canada. Cooler northerly flow keeps temps slightly colder than normal with highs only expected in the upper 40s to upper 50s under partly to mostly cloudy skies. That said, if a drier solution pans out, less clouds could help cooler temps resolve. Quiet and calm weather returns on Wednesday with the high pressure now centered overhead. Attention then turns to the deep trough upstream. The high pressure quickly gives way to the east on Thursday, allowing for a warm front to re-introduce PoPs to the forecast as the low to the west lifts toward the Dakotas.
- Warm temperatures will continue through the remainder of this week with a gradual eastward shift of the upper-level ridge.
202 AM EDT Wed Oct 15 2025 High pressure will build through Wednesday leading to a warming trend. A passing dry cold front Wednesday night will usher in the coolest air since Spring.
On Thursday, an upper-level ridge begins to build over the region, leading to expanding sunshine.
320 AM EDT Wed Oct 15 2025 -High pressure continues quiet conditions today and tonight. Midlevel ridging begins to build today across the central CONUS. At the surface, high pressure remains settled over Lake Superior continuing this pattern of (mostly) sunny skies and quiet weather through the entirety of the short term period. Manistee county and surrounding towns remain slightly warmer and light northerly flow will push temps into the low 60s via downsloping. High pressure continues clear skies and quiet weather tonight. Dew points falling to near or below freezing will allow expected widespread overnight lows around 30 degrees across interior northern lower and eastern upper while areas closer to the shorelines remain in the mid/upper 30s.
Clear skies across southeast Arizona this morning as the area is under southwesterly flow aloft as a strong trough/upper low shifts east near the CA/NV border. Ensembles show ridging building back in this weekend as a cut-off upper low takes shape over the eastern Pacific.
213 AM EDT Wed Oct 15 2025 High pressure will slowly build into the region for the remainder of the week.
\/Hodanish Thursday, the main concern will be the threat of strong to marginally severe storms over the far eastern plains during the afternoon as the deep trough to our west pushes east.
An upper closed low continues to churn over northern WI, gradually drifting to the E/SE this evening towards eastern upper and NL. Once the closed upper low makes it way overhead (later this evening and tonight), near surface winds will weaken and the focus of showers will shift to NW lower as NW winds start to build in early Wednesday morning.
314 PM EDT Tue Oct 21 2025 After brief high pressure today, cooler and more unsettled weather moves in for the rest of the week.
An upper trough extending from the Great Lakes into the Southeast remains over the area through the near term. Key message(s): - Cooler and dry with chilly overnight temperatures.
Above normal temperatures and generally rain-free conditions are expected across Deep South Texas this week as the region remains under the influence of mid level ridging aloft. Overall, rain chances remain on the lower end (20-30%). By the end of the week and into the weekend, an upper level trough/low is expected to translate across the Plains.
Key message(s): - Increasing clouds and isolated showers ahead of a cold front this evening. Another cold front is approaching the area from the west, bringing with it a quick surge in moisture. Lows tonight are likely to fall into the low to mid 50s. Key message(s): - Cooler and dry with chilly overnight temperatures.
750 PM EDT Tue Oct 21 2025 Dry high pressure will dominate through much of the week. Another dry cold front will move across the region tonight, mainly affecting winds and temperatures. Latest surface analysis shows high pressure offshore, while a cold front is starting to knock on Appalachia's door. Pre- frontal warming from some deeper southwesterly flow has allowed for temperatures to kick up into the low-to-mid 70s so far this afternoon, and some spots in the Pee Dee region are expected to go a couple more degrees throughout this afternoon. All eyes on the cold front this period, as it will gradually move from west to east over the next several hours, passing over the coastal Carolinas during the overnight hours tonight. Lows tonight only bottom out into the low-to- mid 50s inland, mid-to-upper 50s at the coast.
837 PM EDT Tue Oct 21 2025 A weak warm front approaches and moves across the area tonight, followed by a cold frontal passage in the morning.
624 PM CDT Tue Oct 21 2025 - A Frost Advisory is in effect for the whole area tonight into Wednesday morning for temperatures mostly in the low to mid 30s.
Issued by National Weather Service Flagstaff AZ 342 PM PDT Tue Oct 21 2025 * Quiet weather is expected across the region today, with a low pressure system bringing mountain precipitation chances, slightly cooler temperatures, and breezy winds to the region tomorrow.
Water vapor imagery continues to show upper level ridging over the Desert SW, along with a cut-off low spinning off the coast of Southern CA/ Northern Baja. The upper level ridging will keep the afternoon high temperatures in the upper 80s to low 90s for today and Wednesday. The aforementioned cut-off low will migrate eastward, tonight into Wednesday, as cloud coverage can already be seen to the SW of our region. This saturation is from a slight increase in moisture introduced by the cut-off low. However, the higher terrain areas could see measurable rainfall. As the cut-off low tracks into southern California on Wednesday, portions of the region will see some increased breeziness focused during the afternoon hours.
Other than that, look for sun tomorrow and afternoon highs a few degrees cooler than today. (Rest of today through Wednesday) A cold front was moving across Middle TN late this Tuesday morning. Cooler post-frontal air will be felt tonight as temperatures drop into the upper 30s to mid 40s under clear skies. Northwest flow aloft will bring in a dry high pressure system with cool and crisp conditions for midweek.
549 PM PDT Tue Oct 21 2025 * Quiet weather is expected across the region today, with a low pressure system bringing mountain precipitation chances, slightly cooler temperatures, and breezy winds to the region tomorrow.
942 PM EDT Tue Oct 21 2025 Dry high pressure will dominate through much of the week. Another dry cold front will move across the region tonight, mainly affecting winds and temperatures. Latest surface analysis shows high pressure offshore, while a cold front is starting to knock on Appalachia's door. Pre- frontal warming from some deeper southwesterly flow has allowed for temperatures to kick up into the low-to-mid 70s so far this afternoon, and some spots in the Pee Dee region are expected to go a couple more degrees throughout this afternoon. All eyes on the cold front this period, as it will gradually move from west to east over the next several hours, passing over the coastal Carolinas during the overnight hours tonight. Lows tonight only bottom out into the low-to- mid 50s inland, mid-to-upper 50s at the coast.
- Showers will clear out by early evening as a cold front brings drier air into the region.
High pressure over Utah and southwest Wyoming will shift east of the area during the day Wednesday.
715 PM EDT Tue Oct 21 2025 Upper level low pressure will slowly track across the Great Lakes over the next several days. A surface cold front will cross the area today offering some showers ahead of it.
Currently the upper low pressure system that brought us the rainy and windy weather, is now entering the Great Lakes Region. The low pressure system does still have some influence in North Dakota from about Jamestown east. The low stratus from this morning is still slowly trying to erode west to east, as higher pressure is pushing into the west. There is also a slight warm front entering western ND. Through this evening those clouds should continue to erode as the lower pressure moves farther into the Great Lakes. One is temperatures may be cooler than the NBM is forecasting, so we used the 25th percentile of the NBM for lows tonight. And two, patchy fog could form, mainly in the low valleys.
Cooler Wednesday with stronger southwest to west winds in the mountains and deserts.
207 AM EDT Wed Oct 22 2025 Cool high pressure will build into the region through the rest of the week and into the weekend. The generally dry surface cold front currently making its way through central NC will shift E off the coast this morning, leaving us within a deeply dry cyclonic flow through the low and mid levels from the WSW-W. A fairly tight height gradient will persist through the low and mid levels, esp in our N sections, and as we mix into some of the stronger winds aloft, frequent gusts up to 20-25 mph are expected from mid morning through much of the afternoon. ) Clear skies and decoupling in the low levels near and after sunset will yield decreasing surface winds and good radiational cooling, supporting lows tonight from 37-45, coolest in the rural Piedmont.
234 AM EDT Wed Oct 22 2025 An upper level low pressure system will bring cool and more unsettled weather for the remainder of the week and into the weekend.
324 AM CDT Wed Oct 22 2025 - Lows will be cooler than normal the next couple of days.
956 PM PDT Tue Oct 21 2025 * Quiet weather is expected across the region today, with a low pressure system bringing mountain precipitation chances, slightly cooler temperatures, and breezy winds to the region tomorrow.
247 AM EDT Wed Oct 22 2025 Another trough moves in today, bringing another round of showers, especially in the morning.
The area will sit just upstream of the main trough axis and fairly stacked westerly flow and with some heating this afternoon some breezy winds will mix down. This will push RH's into the low 20%'s in spots, and along with breezy winds, will yield some elevated fire risk during the afternoon.
A more robust system is expected to cross California this weekend, bringing in rainfall to the Valley and Foothills, and snow to the higher Sierra Nevada, all of which will likely be north of Fresno County. A weak disturbance, in the form of a cut-off low pressure trough, has begun to come ashore, which is leading to the formation of scattered showers across the Valley and mountains. Looking forward through the early morning, thunderstorm chances increase along the Coastal Range as the cut-off low comes further onto land, with probabilities of development in that region at 10-20% from 5AM through 11AM. Then as the sun sets and the low moves east, chances for development reduce back to 10-15% through 8PM before dropping below 5% after 8PM.
1247 AM EDT Wed Oct 22 2025 Upper level low pressure will slowly track across the Great Lakes over the next several days.
304 AM CDT Wed Oct 22 2025 - Windy cooler conditions continue today, before wind speeds decrease by this evening.
131 AM PDT Wed Oct 22 2025 * A low pressure system moving across the area today will bring cooler temperatures and a slight chance of precipitation to the southern Sierra and Great Basin.