Aikyam-Lab/Synoptic-Bench huggingface dataset:
Gusty winds and isolated rain and snow showers will continue through this afternoon over the high terrain. A trough over the Inner Mountain West continues to push eastward through the day today. Gusty southwest winds have already developed out ahead of the assocaited cold front, currently traversing northern Arizona. With the front, some isolated rain and snow showers will be possible through this afternoon across the higher terrain.
As fog from earlier this morning has since dissipated, mostly sunny skies are expected the remainder of the day with Valley high temperatures in the lower 60s and 40s to 50s at higher elevations this afternoon.
Wednesday will be a few degrees warmer across the Central Coast, but cooler over the North Bay as our next weather system approaches the region.
110 PM MDT Tue Mar 18 2025 - Scattered snow showers continue through the rest of the day today along south and west of the Cut Bank to Lewistown line, with the greatest impacts over the higher terrain across of Southwest and Central MT.
430 PM EDT Tue Mar 18 2025 Dry with warmer temperatures through tomorrow.
- Cold front passes early Wednesday with very low chance of precipitation north. (The rest of this afternoon and tonight) Fire weather will continue to be the main concern for the remainder of the afternoon and into tonight as gusty southerly winds continue in advance of a cold front that is forecast to move through the region late tonight into Wednesday. (Wednesday through Tuesday) Much cooler conditions are anticipated for Wednesday as the effects of the cold front become apparent. Despite the cooler temperatures, gusty northwesterly winds and drier air will keep the fire weather a priority.
945 PM EDT Tue Mar 18 2025 High pressure builds back into the Eastern Seaboard through Wednesday.
The pressure gradient between low pressure to our northwest and surface ridging to our east was still resulting in gusts at mid evening. /22/ Through Tomorrow: Upper level ridging will continue to shift through the southeast through tonight keeping conditions dry. Simultaneously a upper level trough and associated cold front will move across the area tomorrow afternoon into the evening leading to some storm potential out ahead of the front.
- Scattered snow showers continue through the rest of the day today along south and west of the Cut Bank to Lewistown line, with the greatest impacts over the higher terrain across of Southwest and Central MT.
With a cold front expected to arrive on Wednesday, gusty winds are expected to continue throughout the day so have issued another Wind Advisory encompassing all but our far southern zones for Wednesday. /19/ (This evening through Wednesday Night) Quiet conditions across the region again today, but winds have increased in response to an upper trough sliding eastward out of the Rockies into the Central Plains. Warmer overnight temps can be expected again tonight into Wednesday morning, with lows only falling into the upper 50s to lower 60s. The aforementioned upper trough will eject out of the Rockies into the Central Plains tonight, dragging a cool front through our forecast area Wednesday.
The cold front that moved across the region early this morning has now exited east of Arizona this afternoon. Behind this front has brought breezy to locally windy conditions across the majority of the region, most notable in the higher terrain areas of south- central Arizona, where gusts of 30-40 mph may be common. Heading into tonight, temperatures will continue to remain below normal as winds subside and clear skies combine with the cooler northwesterly flow aloft as the cold core of the troughing feature remains overhead.
736 PM EDT Tue Mar 18 2025 High pressure will prevail through Wednesday.
Gusty north winds will persist into this evening behind an area of low pressure, with winds lingering into Wednesday along the Colorado River Valley.
940 PM EDT Tue Mar 18 2025 High pressure will prevail through Wednesday.
606 PM CDT Tue Mar 18 2025 - Strong wind gusts are anticipated this evening but stronger winds are expected tomorrow as a strong low pressure system lifts through the region.
High pressure dominating and dry airmass in place continue to keep us under clear skies and pleasant weather conditions. Overnight lows will be a degree or two warmer, but still ranging from the low 40s north to low 50s south.
A strong upper trough is crossing the Rockies at this time, in the process of cutting off across the CO plains. Upper ridging will build across the central to northern Rockies on Wednesday.
628 PM EDT Tue Mar 18 2025 High pressure builds back into the Eastern Seaboard through Wednesday.
Quiet weather will persist late tonight as high pressure continues to build and 500 mb heights peak right around 6Z Wednesday. Wednesday morning will be the quiet period before the first approaching storm and cold front. As for snow during this first wave and cold front, we're anticipating a pretty healthy 6 to 12 inches with those higher totals in the high central Cascades above 5000 feet.
625 PM CDT Tue Mar 18 2025 - A cold front is anticipated Wednesday with low end rain chances.
704 PM EDT Tue Mar 18 2025 (Through Wednesday) An extensive upper ridge builds eastward from the Southern Plains with its NE-SW-oriented axis bisecting the Atlantic Eastern Seaboard down to the Central Gulf. Plentiful late-March sunshine fosters widespread highs in the low 80s away from the immediate coast. An afternoon seabreeze keeps the coastal strip several degrees cooler.
(Tonight) Will continue to see an increase in high clouds overnight as an upper trough axis nears the area from the west. Lows will fall into the upper 40s/lower 50s west of I-65 where better cloud cover is expected, then ranging from the lower to upper 40s east of I-65.
652 PM CDT Tue Mar 18 2025 Through Tomorrow: Upper level ridging will continue to shift through the southeast through tonight keeping conditions dry. Simultaneously a upper level trough and associated cold front will move across the area tomorrow afternoon into the evening leading to some storm potential out ahead of the front.
Cool post cold front conditions persist across the Keys this evening. However, as is common a day after a substantial cold front, winds tend to remain backed northeasterly overnight. This along with clear skies and sizeable dew point depressions will make it possible for some locations to cool quite a bit into the lower Temperatures overnight will be highly sensitive to the complicated interaction between radiational cooling, large dew point depression, and High pressure will straddle the Florida Peninsula through the overnight period.
A cold front approaches on Wednesday with MVFR cigs from 11-21z that will eventually scatter out later in the day.
1258 AM CDT Wed Mar 19 2025 - Potent low pressure system to bring strong winds along with snow/blowing snow to parts of central KS tonight through Wed. Water vapor imagery shows upper trough digging across the Eastern Great Basin and approaching the Central Rockies. At the surface, lee troughing is strengthening with a cold front extending from central IA across the KS/Nebraska border. By 06z this evening, main vort lobe associated with upper trough will be tracking across the OK/TX Panhandle and across northeast KS by 12z Wed. By 12z Thu, upper trough will be moving into the Great Lakes/Ohio Valley with another upper impulse tracking from the Northern Rockies and into the Central Plains by Fri morning. A low pressure system continues to track east early this morning into the Central Plains.
Temperatures Wednesday will be slightly warmer but still cool. A trough over the Inner Mountain West continues to push eastward through the day today. Gusty southwest winds have already developed out ahead of the assocaited cold front, currently traversing northern Arizona. With the front, some isolated rain and snow showers will be possible through this afternoon across the higher terrain.
(Through Wednesday) An extensive upper ridge builds eastward from the Southern Plains with its NE-SW-oriented axis bisecting the Atlantic Eastern Seaboard down to the Central Gulf. Plentiful late-March sunshine fosters widespread highs in the low 80s away from the immediate coast. An afternoon seabreeze keeps the coastal strip several degrees cooler. An upper level trough is digging through the midwestern region of the continental US moving a line of showers towards the forecast area moving into Thursday.
333 AM EDT Wed Mar 19 2025 Dry with well above normal temperatures are expected into early Thursday before a cold front passes through bringing some showers and possible thunderstorms. Cooler and dry weather will follow into late week before warmer weather returns this weekend.
1243 AM CDT Wed Mar 19 2025 Updated at 1240 AM CDT Wed Mar 19 2025 - Significant fire weather concerns into Wednesday as strong dryline moves through ahead of a cold front. - Cold front passes early Wednesday with very low chance of precipitation north. As daybreak approaches, a cold front is forecast to move into northeast Oklahoma with a second wind shift out of the west becoming northwest. Also behind the cold front, falling temperatures are forecast through the day Wednesday which will help to raise humidity levels.
335 AM EDT Wed Mar 19 2025 (Today through Thursday) High pressure is currently centered across the Florida peninsula. A cold front is moving east across the central US. Low pressure remains in the western Atlantic. The high pressure center is expected to shift slightly southward as the cold front pushes east of the Mississippi River today.
109 AM CDT Wed Mar 19 2025 The pressure gradient between low pressure to our northwest and surface ridging to our east was still resulting in gusts at mid evening. /22/ Through Tomorrow: Upper level ridging will continue to shift through the southeast through tonight keeping conditions dry. Simultaneously a upper level trough and associated cold front will move across the area tomorrow afternoon into the evening leading to some storm potential out ahead of the front.
107 AM CDT Wed Mar 19 2025 (Tonight) Will continue to see an increase in high clouds overnight as an upper trough axis nears the area from the west. Lows will fall into the upper 40s/lower 50s west of I-65 where better cloud cover is expected, then ranging from the lower to upper 40s east of I-65.
after midnight, as the low pressure system strengthens and deepens.
Earlier report out of Mobridge of not quite an inch of snow underneath the earlier band of snow when it was out over north central South Dakota. As the low moves into the plains tonight, the snow will spread south and east. May need a wind advisory south of Watertown, but will let the evening or mid shift pull the trigger if necessary given the southern trend in the low track and wind fields. The lower winds and higher RH are also limiting the fire wx concerns for Wednesday. High pressure and upper ridging build in Wednesday night.
Overnight Wednesday, a pre-frontal trough will move east through the region, with an accompanying line of thunderstorms. On Thursday, a cold front will follow this trough and may produce a few additional lighter showers. For today, a low pressure system approaches the Ohio Valley from the Mississippi River Valley. Warm southerly flow east of the low helps highs peak into the 60s west of I-75 to the upper 70s southeast of the Scioto River Valley. The aforementioned low pressure system moves through the Great Lakes northwest of the Ohio Valley tonight. For Thursday, the low pressure system keeps progressing northeast of the area bringing a secondary cold front through on Thursday. The chance for some light showers, and some snow showers, persists through the day with upper level troughing moving overhead.
MVFR cigs then arrive in the morning into the afternoon as a cold front begins to approach from the west.
325 AM EDT Wed Mar 19 2025 Dry with well above normal temperatures are expected into early Thursday before a cold front passes through bringing some showers and possible thunderstorms. Cooler and dry weather will follow into late week before warmer weather returns this weekend.
(Today and tonight) Breezy onshore flow is expected today as the next cold front pushes eastward across the Gulf Coast states.
Precip type will be snow or a rain/snow mix at times, with a slight chance (10 percent) for freezing rain. As the upper level wave gets closer to the area we will start to see the lower levels saturate faster and allow for precip to reach the surface. The low chance for freezing rain comes from the drier air remaining above 1km in the lower levels. This would allow for low levels of saturation, slight lift, and that chance for freezing rain. Minimum RH values will be in the low to mid 30s across portions of eastern North Dakota. The chance is rather low as there is uncertainty with the strength of the winds on Thursday as mixing in the lower levels is weak.
A strong upper trough is crossing the Rockies at this time, in the process of cutting off across the CO plains. Upper ridging will build across the central to northern Rockies on Wednesday. The ridge will slide across the northern Plains on Thursday.
High pressure settled over mainland Florida will continue to promote gentle to moderate breezes out of the north to northeast first before veering off to the east by tonight. Temperatures will be a touch warmer than yesterday with forecast highs in the upper 70s. This slow warming pattern will be short lived as another cold front is set to approach Thursday. As this system launches into southeastern Canada, it will drag a cold front southeast into the Gulf.
WV imagery shows an upper trough digging into the plains early this morning. Strong isolation today will promote deep mixing and in turn will allow humidity to fall into the low 20's percent across the western half of the region. Higher instability will be focused across northeast portions of the area as a cold front pushes in from the west. Again, think the higher risk area would be across southwest Indiana and especially further north of the PAH CWA. The strong low level jet will contribute to plenty of SRH in the lowest 3 km.
Farther northeast of the low, a cold front has been moving south and extended from MKG southeast across Lake Michigan into the south Chicago suburbs. The low will move northeast as the front continues to move south.
Otherwise, dry and stable conditions to persist into Thursday with northwest winds around 10 to 15 mph and high temperatures forecast to average in the lower 60s.
Upper ridging extends northeastward from the northeastern gulf along the eastern seaboard to New England. Sunny skies continue on Wednesday with daytime highs reaching the low to mid 80's and overnight lows Wednesday night into Thursday morning dropping only into the mid 50's to low 60's. By Thursday morning, the high pressure center moves southeast of Florida while the next weather system develops and moves through the Great Lakes. The trailing edge of this front will push through the area on Thursday producing only a slight chance of a shower, with the highest chances over the Nature Coast.
1143 PM CDT Tue Mar 18 2025 - A cold front is anticipated Wednesday with low end rain chances.
As for temperatures, the cold air advection behind the front this morning will keep cooler temperatures in the low 60s to low 70s for high temperatures today. Overnight lows tonight will fall into the low to mid 30s with some low-lying areas potentially falling just below freezing overnight tonight into early Thursday morning.
- Lighter winds and cooler temperatures are expected for Wednesday. Well, a windy, dusty day as promised! Strong upper low now into SW Colorado with trailing trough down through far western New Mexico. Cold front out ahead of this trough is into the Rio Grande Valley and should be east of the CWA by 6pm. Short wave ridge builds over the area Wednesday behind departing upper low.
On Thursday, a cold front will move across the Southeast bringing a few showers and gusty winds. Surface and upper ridge axis shifting to the SC coast this afternoon. With warm advection and subsidence, temperatures Warm advection, max temperatures will be unseasonably warm, in the low 80s. A cold front will be approaching from the west toward daybreak. Increasing warm advection, stronger kinematics fields after midnight (35kt) at 850mb supports warmer temps tonight. Lows in the low 50s. Key Message(s): - Showers likely Thursday with gusty winds in the afternoon Deep upper troughing will move across the Southeast on Thursday as a trailing cold front works into the forecast area Thursday morning moving east by Thursday evening. On Thursday morning, temperatures will start off in the low to mid 50s.
(Today through Thursday) An abnormally dry airmass remains in place over the region as mid-level ridging and an area of high pressure persists over the Florida peninsula today. With the high nearly positioned directly over the peninsula today, dry conditions and clear skies are expected this afternoon. The pattern begins to change slightly heading into Thursday as a weak surface boundary associated with a trough across the northeast states pushes across the area. Ample surface heating due to a lack of cloud cover and light winds will lead to afternoon high temperatures heat back up into the low to mid 80s (with the exception of coastal areas in the upper 70s to low 80s today.
1258 AM CDT Wed Mar 19 2025 - Strong wind gusts are anticipated this evening but stronger winds are expected tomorrow as a strong low pressure system lifts through the region. - Behind the low pressure tomorrow, a rain/snow mix will enter the area early tomorrow night and change to all snow overnight into early Thursday morning. There is a 20-60% chance of at least 1 inch of snowfall northwest of the Illinois River, with the highest chances around Galesburg.
1054 PM CDT Tue Mar 18 2025 (This evening through Wednesday night) The overall synoptic pattern will evolve from subtle H5 ridging overhead right this moment to overnight tonight a broad scale trough spreading east transitioning us to a more active southwest flow as the trough nears the region. Eventually, after sunset moisture will increase in the low level WAA regime. A cold front will begin to move through the region sometime late tomorrow or early Thursday morning.
A very tight pressure gradient will develop between the departing high pressure system just to our east and an intense low pressure system that will be moving across Missouri and iowa. A cold front trailing from the intense low pressure system will approach late in the day and cross the area during the evening. Most of the showers associated with the front will move east of the area by midnight, then the late night hours will be mainly dry, breezy, and cooler. There will be another batch of showers on Thursday with moisture wrapping around the low pressure system.
- Lighter winds and cooler temperatures are expected for Wednesday.
(Today through Thursday) High pressure is currently centered across the Florida peninsula. A cold front is moving east across the central US. Low pressure remains in the western Atlantic. The high pressure center is expected to shift slightly southward as the cold front pushes east of the Mississippi River today.
Elevated fire weather conditions across south central SD - Warmer and drier by Thursday with near critical to critical fire weather conditions across southwestern and south central SD - Increasing chances for precipitation and breezy/gusty northwest winds late this week and over the weekend. Weak upper level ridge builds over the region by Thursday, bringing warmer and drier conditions to the CWA as west to southwest downslope flow develops across the plains.
A strong cold front will reach western portions of he forecast area this afternoon, and then move quickly across the area as we go into the evening.
410 AM MDT Wed Mar 19 2025 Updated at 350 AM MDT Wed Mar 19 2025 - Lighter winds and cooler temperatures are expected for Wednesday.
647 AM EDT Wed Mar 19 2025 Dry with well above normal temperatures are expected into early Thursday before a cold front passes through bringing some showers and possible thunderstorms. Cooler and dry weather will follow into late week before warmer weather returns this weekend.
905 AM EDT Wed Mar 19 2025 Dry with well above normal temperatures are expected into early Thursday before a cold front passes through bringing some showers and possible thunderstorms. Cooler and dry weather will follow into late week before warmer weather returns this weekend.
Quick update this morning to tweak the hourly temperature grids as the forecast was a few degrees warmer in places than observed trends. (Today through Thursday) An abnormally dry airmass remains in place over the region as mid-level ridging and an area of high pressure persists over the Florida peninsula today. With the high nearly positioned directly over the peninsula today, dry conditions and clear skies are expected this afternoon. The pattern begins to change slightly heading into Thursday as a weak surface boundary associated with a trough across the northeast states pushes across the area. Ample surface heating due to a lack of cloud cover and light winds will lead to afternoon high temperatures heat back up into the low to mid 80s (with the exception of coastal areas in the upper 70s to low 80s today.
Thereafter, a high pressure currently moving across the Florida Peninsula will shift enough east that our winds will clock around more from the east. No changes needed to the going forecast as high pressure will dominate the region suppressing any rain chances or clouds for that matter. High pressure over mainland Florida will promote gentle northeast breezes through the afternoon. As this high meanders into the western North Atlantic, breezes will gradually slacken and veer to the southeast by Thursday. Another cold front will push through the marine zones Thursday night, with freshened breezes expected once again in its wake through the end of the work week. Behind this front, yet another area of high pressure will settle in the southeast CONUS slackening breezes before the start of the weekend.
Snow has ended areawide as high pressure starts to build into the region, briefly.
642 AM EDT Wed Mar 19 2025 (Today and tonight) Breezy onshore flow is expected today as the next cold front pushes eastward across the Gulf Coast states.
556 AM MDT Wed Mar 19 2025 Updated at 555 AM MDT Wed Mar 19 2025 - Lighter winds and cooler temperatures are expected for Wednesday.
Some of the higher elevations of the Ozarks could see a rain/snow or even a changeover to light snow before ending.
Other than strong gusty winds over some our mountain peaks, a bit warmer temperatures, sunny skies and mainly light winds are in store today.
155 PM EDT Wed Mar 19 2025 Dry with well above normal temperatures are expected into early Thursday before a cold front passes through bringing some showers and possible thunderstorms. Cooler and dry weather will follow into late week before warmer weather returns this weekend.
Rain showers are expected tomorrow ahead of a cold front. Cooler temperatures, around average, for the end of the week into the weekend.
1129 AM MDT Wed Mar 19 2025 Updated at 1115 AM MDT Wed Mar 19 2025 - Lighter winds and cooler temperatures are expected for Wednesday.
Forecast remains on track this afternoon, with low pressure now centered over northeast Missouri. A gradual weakening trend is ongoing now as the low has become vertically stacked and started to occlude.
254 PM EDT Wed Mar 19 2025 High pressure is currently in place over the state, bringing calm conditions and gradually warming temperatures over the past few days. Highs today are reaching into the high 70s and low 80s, with lows overnight only expected to be in the 50s or low 60s.
(This evening through Thursday) An approaching frontal boundary will bring cooler conditions to the North Bay, while mostly sunny skies prevail over the Central Coast allowing for slightly warmer temperatures than yesterday. 40" in the higher elevations.