Aikyam-Lab/Synoptic-Bench huggingface dataset:
This afternoon, high pressure stretches along the eastern seaboard while low pressure is moving east across the Canadian Prairies. Modest southerly flow across central Illinois ahead of the low and attendant cold front along with increasing cloud cover will result in mild conditions overnight with lows in the low to mid 60s. In addition to the high moisture content, mean cloud-bearing flow (850-300mb) looks to be fairly parallel to the surface front which could result in some training of storms. 0-6km shear vectors are expected to increase to around 30-40 kt in magnitude with 15-25 kt in the lowest 0-1km. The breezy northwest wind will keep temperatures suppressed through the day Sunday with highs struggling to reach the low 60s.
A high pressure system over the southeastern CONUS is responsible for the ongoing breezy conditions. Tonight, a low pressure system developing over the Great Lakes will push the high into the western Atlantic. Veering low to mid level winds will direct a plume of tropical moisture back across the Keys starting tonight along a weak warm frontal boundary.
1142 PM CDT Fri Oct 17 2025 - A cold front early this afternoon brought a band of showers and thunderstorms and slightly cooler temperatures through the region. - Breezy during Saturday afternoon and evening behind a reinforcing cold front.
220 AM EDT Sat Oct 18 2025 Temperatures trend warmer this weekend with continued dry weather.
A classic fall mid-latitude cyclone will breeze through the Great Lakes over the next 48 hours. This WAA is ahead of a deep upper-level low centered over Manitoba with a surface cold front sweeping through the OK Panhandle. Instead, the approaching cold front will be the primary driver of the day's severe thunderstorm risk. Upper- level support lags instability, with the low-level jet ramping up significantly late in the afternoon.
1230 AM EDT Sat Oct 18 2025 High pressure takes a hold of the weather pattern this weekend bringing less wind and warmer afternoon temperatures.
- Warmer than normal temperatures are expected through Saturday ahead of a cold front.
1222 AM CDT Sat Oct 18 2025 - Windy Saturday with cooler temperatures behind a cold front. - While most areas will be dry Saturday afternoon, an isolated shower or sprinkle will be possible mainly north of Highway 92 (cannot be totally ruled out farther south) - Temperatures may dip slightly below freezing late Saturday night through Sunday morning mainly in our far north/west- central Nebraska forecast area, with at least patchy frost also possible in much of the remainder of mainly our Nebraska forecast area.
- Breezy, dry and, cooler conditions are forecast Sunday. Strong WAA will allow high temperatures to climb into the middle to upper 80s this afternoon (near or at record high values) along with dew point temperatures rising into the lower to middle 60s. Expecting a prefrontal trough to kick off isolated to widely scattered storms in this area by mid-afternoon, with the activity quickly growing upscale into an MCS by late afternoon/early evening. The cold front will push through the area Sunday morning into Sunday afternoon, bringing drying conditions and clearing skies.
120 AM EDT Sat Oct 18 2025 High pressure overhead this weekend with warm air advection and above average temperatures expected.
Temperatures trend cooler beginning Sunday. Showers and scattered thunderstorms were increasing across the Fox Valley and lakeshore areas early this morning, in response to the approach of a weak cold front, the RRQ of an upper level jet streak, PWATs of 1. Another cold front will move through the northwest half of the forecast area this afternoon, with little impact other than a wind shift to the west. This will induce rapid cyclogenesis along the cold front as it shifts east into Lower Michigan late tonight into Sunday morning.
159 AM EDT Sat Oct 18 2025 High pressure will move offshore Sunday ahead of a cold front.
1237 AM EDT Sat Oct 18 2025 High pressure overhead this weekend with warm air advection and above average temperatures expected.
A strong cold front will move through the area Sunday morning bringing showers, gusty winds, and falling temperatures.
- Gusty northwest winds this afternoon over mainly central Kansas behind a cold front.
A pair of upper level trofs will approach from the west today and then merge just upstream of the forecast area. This new merged system will have a lot of energy in the base of the upper level trof with 500 mb winds > 100 kts. In light of the GFS and SREF soundings, the NAM does appear to have a better handle on afternoon low level heating with surface temperatures southeast of the front around 80 degrees to the lower 80s. All considered, the chance for marginally severe storms appears reasonable given the changes expected in the low level thermal environment and wind fields.
Offshore flow will continue through Saturday and keep a warmer and drier pattern in place. Temperatures are warmer this afternoon than yesterday for all areas. Most notably across interior SLO, where 24 hour temperature trends at 5PM were 10 to 15 F warmer - specifically across the Carrizo Plain and adjacent mountain ranges.
234 AM EDT Sat Oct 18 2025 High pressure builds in overhead through tonight, then slowly slides to the east through Sunday night.
- A strong cold front moves through on Saturday with northwest winds gusting at 30-35 MPH behind the front during the afternoon. A stronger, but likely more dry, cold front will swing through Saturday afternoon. A breezy day is expected with the sharp cold front. Wind gusts around 35 mph and much cooler air will flow in behind the front during the afternoon and early evening. A strong cold front will move through this afternoon with northwest winds gusting at 30-35 MPH.
359 AM CDT Sat Oct 18 2025 - Northwest winds gusting 30-45mph behind a cold frontal passage today.
- 60%-90% chance for rain tonight, followed by windy and much cooler conditions on Sunday. - Continued cooler this coming week, with frost potential several nights. Issued 257 AM CDT Sat Oct 18 2025 Today through Sunday: A weak cold front is bringing showers and thunderstorms to the region this morning. Big changes arrive tonight as a deep trough swings through the upper Mississippi Valley, and low pressure rapidly deepens across northern Indiana and lower Michigan. Widespread (60%-90% PoPs) showers and a few thunderstorms will develop across the region this evening into the overnight in response to the approaching trough. A strong cold front will then sweep across the area overnight, with gusty west to northwest winds expected behind the front for Sunday.
- A strong cold front will move through Saturday leading to freezing temperatures across the entire region Saturday night into Sunday morning.
- Lows for tonight will be near or at freezing ranging in the 30s.
Updated at 1027 PM CDT Fri Oct 17 2025 - A cold front will pass through the Mid-South Saturday evening, bringing the threat of strong to severe storms.
Fog development expected for the San Joaquin Valley (along the Highway 99 corridor) Saturday (20-30% chance for quarter mile visibility). The ridge responsible for the warm conditions is now over California and expected to remain overhead for another day or two.
- A strong cold front moves through with gusty northwesterly winds developing behind it from late this afternoon through the overnight hours.
- High temperatures yo-yo up and down the next seven days from the mid 70s to the lower 90s. This activity will move across the Permian Basin quickly this morning due to a rapidly moving upper trough and should exit our CWA by this afternoon. The passage of the trough brings drier air in today, then a cold front tonight dropping lows down into the lower 50s and even some mid to upper 40s in southeastern New Mexico and the northern basin.
Low pressure will move into and across the Inland Northwest, initially bringing increased cloud cover and chances for rain and high elevation snow. Snow at the onset will be confined to the highest mountains, but by Sunday snow levels will drop to around 4000-4500ft.
329 AM CDT Sat Oct 18 2025 - A cold front will bring windy conditions to the area, along with the the threat for isolated, light rain showers to northern Nebraska today. - Widespread frost/freezing temperatures are likely Sunday morning.
- A strong cold front moves through the area today with northwest winds gusting at 30-40 MPH behind the front this afternoon and evening. The Northern Plains trough dives southeast through the day today, shunting a strong cold front through the area during the afternoon. The passage of the front ushers in cooler and drier air for Sunday with morning lows falling into the 40s, with the potential for some upper 30s near the KS/NE stateline.
627 AM CDT Sat Oct 18 2025 - Northwest winds gusting 30-45mph behind a cold frontal passage today.
- Significantly cooler temperatures will settle in from Sunday onward. (Tonight through Sunday Night) We have one more night of quiet weather before a cold front begins spreading showers and thunderstorms into Middle Tennessee beginning tomorrow evening.
* A weak midweek system will bring slightly cooler temperatures, increasing winds and clouds, and a chance of showers to portions of the region. The quiescent pattern continues across the region as ridging continues to build in the wake of a potent trough currently translating across the southern Rockies into the Plains.
649 AM CDT Sat Oct 18 2025 Updated at 635 AM CDT Sat Oct 18 2025 - A cold front will pass through the Mid-South Saturday evening, bringing the threat of strong to severe storms.
925 AM CDT Sat Oct 18 2025 - Widespread below freezing temperatures tonight into Sunday morning.
1002 AM EDT Sat Oct 18 2025 High pressure will move offshore Sunday ahead of a cold front.
510 AM CDT Sat Oct 18 2025 - Strong cold front today will bringing gusty north winds of 40 mph and significantly drier air.
646 AM EDT Sat Oct 18 2025 High pressure will move offshore Sunday ahead of a cold front.
558 AM CDT Sat Oct 18 2025 Updated at 555 AM CDT Sat Oct 18 2025 - Cold front brings briefly drier air Sunday.
Although most CAMs suggest these showers weaken before reaching our area, can not rule out at least some sprinkles/light showers reaching western areas this afternoon as mid level ridge axis shifts eastward. Temperatures trend warmer this weekend with continued dry weather.
602 AM CDT Sat Oct 18 2025 - Breezy winds this afternoon and evening behind another cold front.
635 AM EDT Sat Oct 18 2025 High pressure slides to the east this weekend leading to warm air advection and above average temperatures.
649 AM EDT Sat Oct 18 2025 High pressure builds in overhead through tonight, then slowly slides to the east through Sunday night.
645 AM CDT Sat Oct 18 2025 - A cold front will bring windy conditions to the area, along with the the threat for isolated, light rain showers to northern Nebraska today. - Widespread frost/freezing temperatures are likely Sunday morning.
332 PM CDT Sat Oct 18 2025 - Widespread below freezing temperatures late tonight into Sunday morning.
- Warmer Sunday with a slight reprieve in winds, but low humidity will keep fire weather conditions near critical.
- Cold frontal passage will end the threat with cool NW winds gusting over I-30 before midnight, I-20 and Parishes predawn. Freezing level has dropped from 148 to 140 and this will help with hail production in large towers.
A mid-latitude cyclone is seen lifting northeast through the mid- Mississippi Valley this afternoon. A sharp upper- level trough is noted upstream on water vapor across South Dakota. West of this is a weak pre-frontal trough which is expected to spark showers and thunderstorms within the next couple of hours. SBCAPE and MUCAPE are at least 1,000 j/kg thanks to dew points in the low 60s. As this cyclone interacts with the aformentioned South Dakota trough, any sustained well- organized thunderstorm clusters pose a damaging wind gust threat to far southeast portions of our forecast area. Sharply colder Sunday with high temperatures occuring in the morning, then falling into the low 50s by the afternoon.
211 PM CDT Sat Oct 18 2025 Forecast discussion for routine afternoon forecast issuance - Turning cooler on Sunday.
Main Impact Area: Downtown Jacksonville Southward - Isolated TStorms Possible on Sunday Afternoon & Evening Another pleasant day is underway across the area as high pressure continues to slowly slide to our east/northeast through tonight.
Updated at 1040 AM CDT Sat Oct 18 2025 - A cold front will pass through the Mid-South Saturday evening, bringing a threat of strong to severe storms.
These breezy northwest winds will keep temperatures suppressed Sunday, with highs struggling to reach the low 60s.
- Showers and thunderstorms associated with tonight's cold front likely to be the only precipitation during the 7 day period. (This evening through Sunday night) Tonight into Sunday, a cold frontal system will progress through the area, enhancing rainfall chances for the area.
1213 PM CDT Sat Oct 18 2025 - Strong cold front today will bringing gusty north winds of 40 mph and significantly drier air.
257 PM CDT Sat Oct 18 2025 - Widespread below freezing temperatures late tonight into Sunday morning.
A very nice Saturday for the Florida Keys! High pressure over the SE CONUS continues to dominate our weather pattern, maintaining easterly winds around 15 to 20 knots, and partly to mostly sunny skies with warm temperatures currently in the lower 80s.
A quick moving cold front and accompanying precipitation is still on track for Sunday.
The primary trough axis, located from central Kansas into southwest Oklahoma, is the catalyst for widespread showers and storms across far southeast Kansas. Additionally, little capping and cool temperatures aloft have allowed for some instability to develop across south-central Kansas, and some isolated storms are likely this afternoon before the trough exits eastward. Meanwhile, at the surface, a strong cold front has entered central Kansas and will quickly sweep across the area. Gusty northwest winds are expected behind the advancing cold front and will last into the nighttime hours. As a result of this frontal passage, much cooler and drier air will filter into the region by Sunday. However, increasing winds aloft over the Rockies in lieu of the next system will begin influencing the region late on Sunday with pressure falls occurring across the High Plains.
The calm winds, cooler H85 temperatures, and clear skies will allow for some chilly morning lows tomorrow. There is a potential for frost in the northwestern combined Panhandles going into tomorrow morning with temperatures expected to fall to around 35 degrees or cooler. A slightly more delayed response to warm air advection in the east may keep temperatures in the lower 70s.
157 PM CDT Sat Oct 18 2025 - A strong cold front moves through the area today with northwest winds gusting at 30-40 MPH behind the front this afternoon and evening. A cold front was just entering north central Kansas early this afternoon. Lift and moisture associated with the low will likely move far enough north to bring some showers and potentially an isolated thunderstorm to southeast portions of the area (generally south of I-35). Some sprinkles are also possible in the wake of the cold front with upper-level ascent and some steeper mid-level lapse rates moving through the cold air advection. Cooler, more Fall-like weather will hang on through the week.
Thus, damaging wind gusts remain the primary severe weather hazard amid this highly sheared environment and steep low-level lapse rates. A pair of upper level trofs will approach from the west today and then merge just upstream of the forecast area. This new merged system will have a lot of energy in the base of the upper level trof with 500 mb winds > 100 kts. In light of the GFS and SREF soundings, the NAM does appear to have a better handle on afternoon low level heating with surface temperatures southeast of the front around 80 degrees to the lower 80s. All considered, the chance for marginally severe storms appears reasonable given the changes expected in the low level thermal environment and wind fields.
1217 PM CDT Sat Oct 18 2025 - Breezy winds this afternoon and evening behind another cold front.
WV imagery this afternoon shows the trough has cleared West Texas and Southeast New Mexico, scouring the column from any moisture left over from this morning's convection and paving the way for a dry cold front overnight.
- Northwest winds gusting 30-45mph behind a cold frontal passage today.
Updated at 107 PM CDT Sat Oct 18 2025 - Cold front arriving on Sunday, bringing drier/breezy conditions and leading to Elevated fire weather concerns along the Coastal Plains.
- Significantly cooler temperatures will settle in from Sunday onward. (Rest of today through Sunday) High pressure is sitting off to our east and that will keep things quiet through the afternoon. Storms are already firing along the cold front to our west over the Plains. The trough axis will be working through tough and that may pop off a few showers over the Plateau through the afternoon. Much cooler and drier air filters in during the day Sunday and that will bring some big changes, highs in some areas will be 20 degrees cooler than today with highs only in the low to mid 60s.
320 PM CDT Sat Oct 18 2025 - Lows tonight will be near or just below freezing for many areas along and west of the James River.
226 PM EDT Sat Oct 18 2025 Warm weather is expected this weekend with high pressure in place and southerly winds.
152 PM PDT Sat Oct 18 2025 Upper level ridging was in place across the region This Afternoon, and objective analysis showed the center of high surface pressure across the Interior Northwest and a warm from approaching the Pacific Northwest. This Evening, the synoptic system evolves to break down the upper ridge as the warm front washes out to more of a a pre-frontal trough, creating more broad westerly momentum before being taken over by a cold front reaching the Cascades by Sunday morning. Snow p-type relegated to the highest elevations. Most of the higher elevations can expect wetting rains however some rain shadowing can be expected across the lowest elevations of WA691 and OR700 where a Trace to a few hundredths may be all that is realized.
156 PM EDT Sat Oct 18 2025 High pressure slides to the east this weekend leading to warm air advection and above average temperatures.
638 PM CDT Sat Oct 18 2025 - Widespread below freezing temperatures late tonight into Sunday morning.
Tonight through Sunday: Clouds will continue to increase through the rest of the evening as the Low moves closer. The Low will support a decent plume of moisture pushing into the Inland Northwest and bring widespread showers. The lower elevations of Washington can expect rain ranging from 0. Overnight lows will trend warmer with the increasing clouds decreasing the radiative cooling efficiency.
621 PM CDT Sat Oct 18 2025 Updated aviation portion for 00Z TAF issuance - Turning cooler on Sunday.
812 PM CDT Sat Oct 18 2025 - Lows tonight will be near or just below freezing for many areas along and west of the James River.
730 PM EDT Sat Oct 18 2025 Warm weather is expected this weekend with high pressure in place and southerly winds.
629 PM CDT Sat Oct 18 2025 - A strong cold front moves through the area today with northwest winds gusting at 30-40 MPH behind the front this afternoon and evening. A cold front was just entering north central Kansas early this afternoon. Lift and moisture associated with the low will likely move far enough north to bring some showers and potentially an isolated thunderstorm to southeast portions of the area (generally south of I-35). Some sprinkles are also possible in the wake of the cold front with upper-level ascent and some steeper mid-level lapse rates moving through the cold air advection. Cooler, more Fall-like weather will hang on through the week.
606 PM CDT Sat Oct 18 2025 - Lows tonight will be near or just below freezing for many areas along and west of the James River.
614 PM CDT Sat Oct 18 2025 Updated at 606 PM CDT Sat Oct 18 2025 - A cold front will pass through the Mid-South Saturday evening, bringing a threat of strong to severe storms.
/issued 152 PM PDT Sat Oct 18 2025/ Upper level ridging was in place across the region This Afternoon, and objective analysis showed the center of high surface pressure across the Interior Northwest and a warm from approaching the Pacific Northwest. This Evening, the synoptic system evolves to break down the upper ridge as the warm front washes out to more of a a pre-frontal trough, creating more broad westerly momentum before being taken over by a cold front reaching the Cascades by Sunday morning. Snow p-type relegated to the highest elevations. Most of the higher elevations can expect wetting rains however some rain shadowing can be expected across the lowest elevations of WA691 and OR700 where a Trace to a few hundredths may be all that is realized.
310 PM MDT Sat Oct 18 2025 - A strong cold front will move through Saturday leading to freezing temperatures across the entire region Saturday night into Sunday morning.
- Cold frontal passage will end the threat with cool NW winds gusting over I-30 before midnight, I-20 and Parishes predawn. A weak area of showers is crossing I-30 now with the cold front set to move out of OK into W AR and NE TX by midnight and then down I-49 overnight. Freezing level has dropped from 148 to 140 and this will help with hail production in large towers.
531 PM MDT Sat Oct 18 2025 - A strong cold front will move through Saturday leading to freezing temperatures across the entire region Saturday night into Sunday morning.
615 PM CDT Sat Oct 18 2025 Updated at 611 PM CDT Sat Oct 18 2025 - Cold front arriving on Sunday, bringing drier/breezy conditions and leading to Elevated fire weather concerns along the Coastal Plains.
Surface analysis indicates high pressure centered just offshore the Carolina coastline. Onshore flow is maintained locally on the south side of the high. Expect dry conditions to continue through the evening and overnight with low temperatures ranging the low to mid 60s across the interior and mid to upper 60s along the coast. High pressure extending across east central Florida is pushed further into the western Atlantic as a cold front approaches from the west-northwest.
355 AM CDT Sun Oct 19 2025 - Widespread below freezing temperatures this morning. Weak ridge moving across the state today has lessened winds and brought colder temperatures. Areas with light to calm winds are seeing temperatures at or below freezing, while areas with a light west wind remain above freezing. This ridge moves eastward today bringing a warming southerly flow to the area today.
As deep southerly to southwesterly winds increase ahead of a cold front approaching the forecast area, MLCAPE values will increase to between 700 to 1500 J/KG. Clouds will clear from west to east throughout the morning hours soon after the rain ends and the cold front passes through, followed by sunny skies across the entire are in the afternoon. A much cooler and drier airmass will filter into the region from the north, and effectively result in breezy northerly winds tonight into Sunday.
- Northwest winds gusting to 40mph possible behind a cold front on Monday.
- Gusty northwest winds will usher in a cooler and much drier airmass.
127 AM EDT Sun Oct 19 2025 Warm today, but a cold front moves into the region tonight. Cooler and more unsettled weather moves in behind this system with chances for showers through the week. Southwest flow will increase today out ahead of an approaching cold front. Rain showers will continue through Monday morning and much cooler conditions will move into the region behind this system. about 20 degrees cooler than what our highs will be today.