Aikyam-Lab/Synoptic-Bench huggingface dataset:
1247 PM EST Mon Nov 17 2025 Departing high pressure will lead to warming temperatures through the remainder of the week. Key Messages/Highlights: *Hazards: None *Rain Chances: None *Temps: Below normal tonight; near normal Tue *Confidence: High, except Mod to High regarding temps tonight Details: High pressure centered to the northwest will shift east and become situated more over the area tonight before continuing to move offshore tomorrow. Some mid/high clouds will move through overnight but otherwise conditions should be pretty good for radiational cooling so we leaned toward the cooler guidance, especially given what happened last night. Otherwise, below normal temps tonight in the mid to upper 30s most locales away from the warmer coastal areas and pretty close to normal highs on Tue generally in the mid to upper 60s.
Additional snow accumulation of 2 to 6 inches; with up to 8 inches at the highest peaks with wind gusts of 20-30 mph.
- An upper-level storm system brings increasing rain chances and much cooler temperatures by the middle of the week. Dry southwest flow aloft continues Tuesday, even as a strong upper low moves into Southern California. Lee trough will not be as strong Tuesday, with lighter southwest winds. It will still be warm, with highs in the upper 70s to lower 80s, except cooler in higher elevations.
- An upper-level storm system brings increasing rain chances and much cooler temperatures by the middle of the week. (Today through Tuesday afternoon) A dry westerly to southwesterly flow pattern aloft will prevail across west Texas and southeast New Mexico through Monday afternoon between weak ridging to our east and an upper-level trough lifting from the Great Basin to the central/northern Plains. Temperatures will be slightly cooler than the past few days over most places with readings forecast to range in the mid 70s to mid 80s over most of the region (except 60s in the mountains). Dry southwesterly flow aloft continues into Tuesday ahead of a deepening low pressure system over southern California.
1146 AM EST Mon Nov 17 2025 Breezy and cooler today.
1212 PM EST Mon Nov 17 2025 Breezy and cooler today.
KEY MESSAGES: - Quiet and dry conditions late this evening ---------------------------------------------------------------- Lake-effect snow potential has diminished over the past 3 hours north of Pittsburgh as ridging builds in from the west, allowing all winter headlines to be cancelled. Overnight radiational cooling will likely bring temperatures below freezing. High-resolution guidance highlights eastern Ohio and the higher terrain of West Virginia for light ice accumulation between 8am to 12pm Tuesday.
1159 AM CST Mon Nov 17 2025 - Warmer than normal temperatures are expected through the end of this week.
Updated at 1235 PM CST Mon Nov 17 2025 - Above average temperatures continue through mid week, then cooler behind a cold front over the weekend.
Updated at 1042 AM CST Mon Nov 17 2025 - Slightly cooler temperatures today with very dry conditions in the afternoon. - Warmer temperatures are expected for the remainder of the week and in the weekend.
A passing trough will bring light rainfall through this afternoon before we start to see diminishing trends this evening.
1130 AM CST Mon Nov 17 2025 Updated at 1042 AM CST Mon Nov 17 2025 - Slightly cooler temperatures today with very dry conditions in the afternoon. - Warmer temperatures are expected for the remainder of the week and in the weekend.
1137 AM CST Mon Nov 17 2025 - Much warmer than normal temperatures are expected through the end of this week.
1220 PM EST Mon Nov 17 2025 Dry high pressure is expected to prevail across the area through the week. A cold front is expected to move through this weekend. Nonetheless, with the aid of radiational cooling, have low temperatures dipping into the upper 30s far inland to the lower 50s along the coast.
While it appears that the highest fog chances will be around SWFL, most areas will at least have some potential but confidence in overall coverage remains low. Other than the fog potential, it will be a quiet evening with overnights lows falling into the low/mid 50s across the Nature Coast and upper 50s to low 60s for the remainder of the area.
- Patchy to areas of dense fog possible tonight, generally along and south of Interstate 20 into the Highway 84 to 98 corridors. - Warmer than normal temperatures are expected through the end of this week.
548 PM CST Mon Nov 17 2025 Updated at 1042 AM CST Mon Nov 17 2025 - Slightly cooler temperatures today with very dry conditions in the afternoon. - Warmer temperatures are expected for the remainder of the week and in the weekend.
- Cooler temperatures but still above climatic normals for the time of year through the period. This will keep overnight lows well above seasonal norms with 30s expected in most valley locations with 20s across the high country, about 10-15 degrees above normal. Should start to see some breaks in clouds after daybreak tomorrow and temps will warm into the low to mid 50s across the Snake Plain and Magic Valley with precip chances generally below 20 percent. Temperatures will remain on the warmer side of normal by around 5 degrees. There will be quite a bit of low-level moisture in place given cooler temperatures and recent rain/showers. Unfortunately satellite imagery likely won't be much help in diagnosing the low-levels overnight with many clouds running around at different levels.
435 PM EST Mon Nov 17 2025 Dry high pressure is expected to prevail across the area through the week. A cold front is expected to move through this weekend. Nonetheless, with the aid of radiational cooling, have low temperatures dipping into the upper 30s far inland to the lower 50s along the coast.
The low pressure system responsible for yesterday and today's precipitation currently sits near the Colorado/Wyoming/Nebraska border and will continue to propagate east/northeast throughout the rest of the day. This means that the coverage of valley rain and mountain is decreasing across the forecast area with areas along and north of I-70 seeing the highest potential for precipitation continuing this evening. While the center of the low has moved east of the local area, wrap around moisture continues to favor the northern Divide mountains resulting in light snow showers through the evening hours with little, if any, additional accumulation expected overnight.
* Heavy snow remains expected in the higher terrain of the Spring Mountains, Sierra, White Mountains, and peaks in the southern Great Basin.
Another closed low moves into the desert southwest tonight, bringing widespread valley rain and mountain snow to southern Utah.
Not expecting much strong winds to develop as high pressure starts to set-up, leaving most winds to be light and variable in most places.
Main activity continues to be well to our south with the upper low, although there has been some light returns developing in central ND with a weak northern branch vort. Split flow continues across the Central and Northern Plains today, with an upper low traversing northern Nebraska and southern South Dakota. The northern portions of this low will bring a slight chance for light rain into southeast North Dakota tonight; however, with dry air in place, much of this precipitation will struggle to reach the surface.
With high pressure building in, winds will continue to decrease, becoming less than 5 kts on average by daybreak.
502 PM CST Mon Nov 17 2025 Updated at 450 PM CST Mon Nov 17 2025 - Above average temperatures continue through mid week, then cooler behind a cold front over the weekend.
939 PM EST Mon Nov 17 2025 Departing high pressure will lead to warming temperatures through the remainder of the week. Key Messages/Highlights: *Hazards: None *Rain Chances: None *Temps: Below normal tonight; near normal Tue *Confidence: High, except Mod to High regarding temps tonight Details: High pressure centered to the northwest will shift east and become situated more over the area tonight before continuing to move offshore tomorrow. Some mid/high clouds will move through overnight but otherwise conditions should be pretty good for radiational cooling so we leaned toward the cooler guidance, especially given what happened last night. Otherwise, below normal temps tonight in the mid to upper 30s most locales away from the warmer coastal areas and pretty close to normal highs on Tue generally in the mid to upper 60s.
- Cooler temperatures but still above climatic normals for the time of year through the period. This will keep overnight lows well above seasonal norms with 30s expected in most valley locations with 20s across the high country, about 10-15 degrees above normal. Should start to see some breaks in clouds after daybreak tomorrow and temps will warm into the low to mid 50s across the Snake Plain and Magic Valley with precip chances generally below 20 percent. Temperatures will remain on the warmer side of normal by around 5 degrees. along with seeing some breaks in the low and mid level decks overall.
631 PM EST Mon Nov 17 2025 Departing high pressure will lead to warming temperatures through the remainder of the week. Key Messages/Highlights: *Hazards: None *Rain Chances: None *Temps: Below normal tonight; near normal Tue *Confidence: High, except Mod to High regarding temps tonight Details: High pressure centered to the northwest will shift east and become situated more over the area tonight before continuing to move offshore tomorrow. Some mid/high clouds will move through overnight but otherwise conditions should be pretty good for radiational cooling so we leaned toward the cooler guidance, especially given what happened last night. Otherwise, below normal temps tonight in the mid to upper 30s most locales away from the warmer coastal areas and pretty close to normal highs on Tue generally in the mid to upper 60s.
A weak area of low pressure passes by to the south tonight, which can bring some light snow to Northeast PA.
This areas is mainly along and west of a backdoor cold front that marks a zone between low to mid 60s dewpoints to the west and significantly drier air to the east with dewpoints in the 30s. There should be plenty of sun to go around as high pressure begins to build over the deep south and slowly drift eastward through Midweek. This will be in response to a rather large and lumbering upper trough digging into the Four Corners region of the US.
- Patchy to areas of dense fog possible through late morning, generally along and south of Interstate 20 into the Highway 84 to 98 corridors. - Warmer than normal temperatures are expected through the end of this week.
- Cooler temperatures but still above climatic normals for the time of year through the period. This will keep overnight lows well above seasonal norms with 30s expected in most valley locations with 20s across the high country, about 10-15 degrees above normal. Should start to see some breaks in clouds after daybreak tomorrow and temps will warm into the low to mid 50s across the Snake Plain and Magic Valley with precip chances generally below 20 percent. Temperatures will remain on the warmer side of normal by around 5 degrees. There will be quite a bit of low-level moisture in place given cooler temperatures and recent rain/showers.
133 AM EST Tue Nov 18 2025 Departing high pressure will lead to warming temperatures through the remainder of the week. The southerly component of the BL winds will bring seasonable highs today, perhaps a few degrees warmer.
- Above normal temperatures may return to portions of South Florida towards the middle and the end of the week as mid level ridging strengthens over the region.
and cooler temperatures. Snow will taper off this evening as the upper-level low moves into Nebraska and weak ridging begins to build in. The High Wind Warning in effect for the Arlington area has also been performing well throughout the day with frequent gusts over 50 MPH and an occasional gust to 60 MPH. Winds will ease overnight as the low pressure system moves further east.
Light to gentle north to northeast breezes are observed along the nearshore waters of the Keys with temperatures generally in the lower 70s with dew points in the mid 60s. Meanwhile, this evening's KKEY 00z sounding is more moist than yesterday with a PW finally over an inch likely due to increased mid level moisture from the higher cloud debris. From synopsis, a high pressure system currently over the Lower Ohio Valley will slide east into the Mid-Atlantic through Tuesday while slowly strengthening. This high will continue moving into the western North Atlantic elongating and maintaining strength as it does so.
Quiet wx in our CWA as an upper trough splits as it moves inland from the coast tonight. The south portion of the trough has become a closed low near San Francisco, headed toward southern California Tuesday like the previous upper low, while the north portion is forecast to move rapidly eastward along the Canadian border, leaving our CWA under weak flow aloft.
High temperatures in the low 80s are forecast. Given high pressure in place, light winds, and low-level moisture slowly returning, patchy fog is again possible tonight.
Weak low pressure will then pass south of the region tonight and may spread some light rain and wet snow across the Southern Tier with little or no accumulation.
Currently at the surface, broad high pressure is sprawled across the Mid-Atlantic states and southeastern US, setting up light easterly flow across the Florida Peninsula. During the weekend, an upper level trough will swing through the southeastern US, pulling a cold front into northern Florida.
1130 PM CST Mon Nov 17 2025 - Patchy to areas of dense fog possible tonight, generally along and south of Interstate 20 into the Highway 84 to 98 corridors. - Warmer than normal temperatures are expected through the end of this week.
1258 AM EST Tue Nov 18 2025 Dry high pressure is expected to prevail across the area through the week. A cold front is expected to move through this weekend. At the surface, High pressure will be centered to our northeast this morning while a stationary front is to our south. The High will shift offshore into the afternoon, causing the stationary front to transition into a warm front and lift north. High pressure will then build in from the south this evening and overnight.
An elevated (at 15,000 ft) and shallow DGZ offers a non-zero chance for snow while wet-bulb temperatures near freezing suggest evaporative cooling to all-snow is in the cards. , below 900mb) are not brutally cold enough to lend significant confidence to freezing rain. Noting the high pressure currently over the Lake Superior and over the Appalachians, cool, easterly flow could keep mixed precipitation ongoing through the day.
Updated at 1141 PM CST Mon Nov 17 2025 - Above average temperatures continue through mid week, then cooler behind a cold front over the weekend.
- Still a slight chance for a shower or thunderstorm in our far north with the warm front lifting away from our area. The upper low passing by to our north tightened the pressure gradient and gusted the wind yesterday. This will make for a warm start and more potential records, but the winds should not be quite as brisk as the low moves eastward into the Great Lakes region. Rainfall was hard to come by on the lifting warm front and now we will have to hurry up and wait on the big west coast trough arriving late week.
252 AM EST Tue Nov 18 2025 - A warm front will usher in a milder and more humid air mass into the region later today, and this mild and more moist airmass should linger through the week.
Expect DLS, RDM, BDN, ALW (and possibly other sites) to return to MVFR, or possibly lower, with the highest probabilities for ALW, later tonight and toward morning. Not expecting much strong winds to develop as high pressure starts to set-up, leaving most winds to be light and variable in most places.
Temperatures will climb a few degrees above normal this afternoon ranging from the middle to upper 70s at the coast where the sea breeze will develop to the lower to middle 80s inland. Currently at the surface, broad high pressure is sprawled across the Mid-Atlantic states and southeastern US, setting up light easterly flow across the Florida Peninsula. During the weekend, an upper level trough will swing through the southeastern US, pulling a cold front into northern Florida.
500 mb flow shows upper low near Sioux City IA and moisture rotating northward thru S Wisconsin and southern MN and mostly rain as ptype, with some upper ridging over ND, then another upper low in northern Washington state with a 500 mb jet into southern Alberta into central Saskatchewan. Locally though, upper ridge north of upper low keeping our area dry with a dry surface east wind. As upper low slowly moves east and upper ridge north of it breaks down today mid and high clouds will advance east thru the fcst area.
Boundary layer temperatures/wet bulbs were warmer near Lake Winnebago early this morning, and east winds during the day will likely keep them milder, which should limit accumulation to an inch or less. An upper low will track through Illinois this afternoon, and the deformation zone of this feature will continue to produce light snow or mixed rain/snow over C/EC WI until mid to late afternoon.
620 AM EST Tue Nov 18 2025 - A warm front will usher in a milder and more humid air mass into the region later today, and this mild and more moist airmass should linger through the week.
Showers gradually diminish tonight with mostly dry conditions by Wednesday as high pressure builds over western Washington.
Therefore, any freezing rain is unlikely at this time. Therefore, the probability for freezing rain this morning remains low in the central. Lows where mentionable PoPs are present generally remain above freezing. So unless skies clear prior to rain falling (not the favored solution at this time), freezing rain potential tonight seems pretty low as well. Cooler highs in the upper 30s are forecast in the northeast and Turtle Mountains at times.
Light, scattered showers are expected across northern UT this afternoon as a closed low meanders to our south.
- Much warmer than normal temperatures are expected through the end of this week.
628 AM EST Tue Nov 18 2025 Dry high pressure is expected to prevail across the area through the week. A cold front is expected to move through this weekend. At the surface, High pressure will be centered to our northeast this morning while a stationary front is to our south. The High will shift offshore into the afternoon, causing the stationary front to transition into a warm front and lift north. High pressure will then build in from the south this evening and overnight.
Therefore, the probability for freezing rain this morning remains low in the central. Lows where mentionable PoPs are present generally remain above freezing. So unless skies clear prior to rain falling (not the favored solution at this time), freezing rain potential tonight seems pretty low as well. Cooler highs in the upper 30s are forecast in the northeast and Turtle Mountains at times.
Upper ridging is seen along the Rockies, with another 500hpa closed low spinning off of CA coast. Highs today will be fully dependent on how long the low clouds/fog stick around. Next attention getter deals with aforementioned wave ejecting out of CA closed low.
The southwest flow aloft from the low pressure system centered across the central California Coast is ushering in enough moisture to promote isolated to scattered showers overnight tonight. This system continues to trend warmer as it moves towards Arizona, leaving measurable snow primarily for areas above 7000' starting on Wednesday.
615 AM EST Tue Nov 18 2025 Departing high pressure will lead to warming temperatures through the remainder of the week. The southerly component of the BL winds will bring seasonable highs today, perhaps a few degrees warmer. Warm air advection continues on Wednesday as an area of low pressure moves through the southern Mid-Atlantic. Cool overnight, but not as much as previous days; expect overnight lows in the lower 50s or upper 40s.
532 AM CST Tue Nov 18 2025 Updated at 524 AM CST Tue Nov 18 2025 - Above average temperatures continue through mid week, then cooler behind a cold front over the weekend.
A colder and drier airmass will filter into areas east of the Cascade crest tonight, and coupled with clearing skies, lower elevation locations and mountain valleys will be looking at morning low temperatures below freezing Wednesday. In tandem with the clearing skies and lower temperatures, more moist conditions near the surface may also result in areas of patchy dense fog/freezing fog developing across the lower elevation and mountain valleys (confidence 40-65%) Wednesday morning, though confidence is low (15-25%) in the details for where and when fog may develop. Wednesday, a transient upper ridge will slide over the PacNW, resulting in dry, cool conditions with light winds.
522 AM CST Tue Nov 18 2025 - Dry conditions are expected today as high pressure persists.
- Cooler temperatures but still above climatic normals for the time of year through the period. With less cloud cover overhead tonight, overnight lows will run several degrees cooler tonight with widespread 20s and 30s areawide. Temperatures will remain on the warmer side of normal by around 5 degrees. There will be quite a bit of low-level moisture in place given cooler temperatures and recent rain/showers.
359 AM CST Tue Nov 18 2025 - Dry conditions are expected today as high pressure persists.
Updated at 345 AM CST Tue Nov 18 2025 - An upper-level storm system brings increasing rain chances and much cooler temperatures by the middle of the week. - A few storms could be severe Wednesday night, from the Western Low Rolling Plains to the lower Trans Pecos.
- Above normal temperatures may return to portions of South Florida towards the middle and the end of the week as mid level ridging strengthens over the region. As this weak boundary continues to dissipate over the area, surface flow will increase out of the northeast this afternoon while an upper level ridge becomes established over the Gulf through mid-week. Overall, high pressure and dry air dominate the weather regime making way for many sunny days this week, leaving me with not much to discuss. High temperatures will reach the low to mid 80s today and tomorrow.
- Expect patchy fog over the Prairie Coteau, the higher elevated of northeastern SD, overnight into mid morning Wednesday. The lowest visibility will be near sunrise Wednesday.
Temps however remain on the warmer side of normal with low to mid 50s being observed across the lower elevations with 40s across the high country. Overnight lows should be seasonably mild, once again, with lower elevations low running within a few degrees, above and below, the freezing mark. Expect upper 40s to lower 50s across much of the lower valleys tomorrow, mid to upper 40s across the high country.
- Much warmer than normal temperatures are expected through the end of this week. With near zonal flow aloft and a low level southerly flow from surface ridging along the Gulf coast, temperatures will top out much warmer than normal in the lower 80s at most locations.
- Much warmer than normal temperatures are expected through the end of this week. Through Wednesday: Mid afternoon satellite imagery/RAP analysis showed a closed low over northern Illinois. Areas of dense fog are likely along the Highway 84 Corridor and a Dense Fog Advisory has been issued for our southern zones. Wednesday in addition to the surface ridging across the south, ridging aloft will strengthen over our region. This will help lead to well above normal afternoon highs in the lower 80s at most locations.