Aikyam-Lab/Synoptic-Bench huggingface dataset:
321 PM CST Sat Nov 18 2017 The dry northwest flow pattern will persist through tonight and tomorrow as upper ridging continues over the western Conus. A deepening lee trough will begin to stack the pressure gradient across western portions of the CWA on Sunday.
201 PM EST Sat Nov 18 2017 Periods of rain along with a few isolated thunderstorms expected today as low pressure moves towards the region. A strong cold front will cross tonight bringing strong winds and a changeover to snow showers by early Sunday morning. The upper trough will pivot across the region Sunday with a changeover to snow at most locations by daybreak.
A prefrontal trough will begin to the shift winds more out of the SW-NW over the next couple of hours, with a cold front expected to move through from north to south over S TX between 21Z-00Z.
Sunday will be a warmer day when compared to Saturday, with highs ranging from the mid 40s in southwest MN, to near 55 in south central SD.
1153 AM CST Sat Nov 18 2017 Mostly VFR conditions are expected this afternoon, as a strong cold front, extending along a PSN, to TYR, to JXI, TXK, and HOT line as of 1730Z, quickly shifts SE across the region. Following the scattering post-frontal cu field this evening, look for the cirrus shield to diminish from NW to SE through late evening with the attendant upper trough passage, with SKC prevailing through Sunday.
247 PM CST Sat Nov 18 2017 (Tonight through tomorrow) (Tonight) The cold front has pushed through the area, and based on latest observations, winds have continued to weaken over much of the area, allowing for the Wind Advisory to expire. An area of high pressure will move south across the panhandle this afternoon and settle across the Big Country during the evening. Clear skies with winds going calm across these ares will allow temperatures to drop into the low 30s.
248 PM MST Sat Nov 18 2017 Dry northwesterly flow over the region on the eastern flank of a West Coast ridge brought drying and sunshine to the area this afternoon. Models indicated the ridge will flatten and translate eastward tonight in response to a trough approaching from the eastern Pacific. The flat ridge remains over the region Sunday with nothing but dry air upstream.
148 PM CST Sat Nov 18 2017 All of the action will be in the first few hours of this forecast period, then a quiet wx pattern will take over with a couple of dry cold fronts for Thanksgiving week. The strong winds may become even stronger over the next few hours as an accelerating cold front sweeps across the area. Sunday night will be quite cold as high pressure settles over the area.
1239 PM EST Sat Nov 18 2017 With onshore/upslope flow today, expect some drizzle and freezing drizzle.
1125 AM CST Sat Nov 18 2017 Positively tilted trough swinging through the region this morning will exit to the east by midday today. This will lead to cooler nighttime lows, in the upper teens to mid 20s.
Clearing will continue to progress eastward in the wake of the departing upper trof this evening with diminishing winds as well.
With an expected jump in the winds coincident with the passing of the backside of the upper level trough, blustery winds, especially to the south of Glasgow, seem likely this afternoon. The timing of the departure of the mid- to high-level cloud deck over the region was also updated to reflect the passing of the trough. The southwest half of the forecast area will be breezy this afternoon where better mixing is expected along a lee side trough. Upper ridge builds into Montana tonight and Sunday with warmer air mass. This will bring dry weather and warmer temperatures which will be above normal temperatures on Sunday.
121 PM MST Sat Nov 18 2017 Strong winds aloft behind a Pacific low pressure trough will continue to surface along the Cody foothills bringing periods of high winds around Clark. Dry high pressure will be over western and central Wyoming tonight through Sunday night.
1123 AM CST Sat Nov 18 2017 Cold front has just about pushed through the southern portions of the forecast area as of early this morning. The other aspect to the day will be the windy conditions, with the highest gusts likely occurring during the morning into early afternoon hours. Otherwise, with the cooler airmass in place along with clear skies and winds becoming light, overnight lows for tonight will fall back down into the middle 20s to near 30.
301 PM EST Sat Nov 18 2017 A cold front will sweep east across the area late tonight.
Upper level analysis shows trough that affected the area yesterday is over the Great Lakes region, while ridge is in place over the western US.
136 PM EST Sat Nov 18 2017 High pressure ridging into the area from the western Atlantic will move out to sea this evening. A cold front will move rapidly across the region tonight with scattered showers and breezy conditions.
344 PM CST Sat Nov 18 2017 Quiet weather tonight as Canadian high pressure continues a southeast slide across North Dakota. The high quickly weakens as a surface warm front begins to push into the southwest, where above average lows are expected. The warm front will quickly progress northeastward across the state through Sunday morning with an apparent stall as it approaches the northeast corner. Warmer air will filter into the state behind the front though it will struggle to reach northeast areas. Highs for Sunday will range from the lower 50s in the southwest, to the upper 20s in the northeast corner of the CWA.
231 PM CST Sat Nov 18 2017 A colder air mass has spread into the area behind a cold front that moved into the area earlier today. Winds will weaken and skies will clear this evening and tonight, allowing lows to fall into the upper 20s to the lower 30s. Sunny skies will occur on Sunday but a cooler air mass will remain over the area as highs warm into the upper 40s to the lower 50s.
1206 PM EST Sat Nov 18 2017 The main aviation concern today will be gusty winds associated with a cold front that will cross the forecast area tonight.
A strong cold front continues to progress eastward toward southern Indiana and central Kentucky. The strongest winds are still expected in the 3-8 PM EST time frame, which is also when the cold front will be crossing the forecast area. Still can't rule out a brief tornado or two given the magnitude of the low level shear/helicity, but veered low-level winds should help inhibit tornadogenesis. Behind the cold front, we could have some lingering showers late this evening. The atmosphere will remain well mixed, with overnight lows in the low to mid 30s.
408 PM EST Sat Nov 18 2017 A strong cold front will cross tonight bringing strong winds and a changeover to snow showers by early Sunday morning.
A strong cold front will move south across the terminals this morning, with gusty north winds developing in its wake. /issued 331 AM CST Sat Nov 18 2017/ (Today and Tonight) The main weather feature today will be a strong cold front that will move across the area, bringing gusty north winds and cooler temperatures areawide. Temperatures will be much cooler today, with highs ranging from the lower 60s north, to the lower 70s along the I-10 corridor. The light winds, clear skies and a dry airmass will promote ideal radiational cooling overnight, allowing temperatures to fall into the low to mid 30s by daybreak Sunday.
Approaching cold front will bring increasing clouds and VCNTY SHRA AFT 14Z at TPA/PIE/LAL but BYD 18Z for the terminals to the south. /issued 927 AM EST Sat Nov 18 2017/ Upper level ridge from the Gulf of Mexico will keep the forecast dry and mostly clear. A ridge of high pressure across the state from the Atlantic eases southward today with light northeasterly winds becoming southwesterly. High pressure ridging across the waters from the Atlantic will ease southward today with northeast and east winds becoming southwest.
335 PM CST Sat Nov 18 2017 Our long awaited cold front is pushing through northern Louisiana, as dewpoints in SHV have falling into the mid 40s. Tomorrow, temperatures will warm into to the lower 60s in most locations.
Highway 20, to the low 50s in the Keokuk and Macomb areas.
The Pacific Northwest will remain under a low amplitude upper ridge through tonight.
1149 AM CST Sat Nov 18 2017 Cold front had pushed through the northern part of Kansas City and through Wichita as of 07z this morning. Temperatures should drop down into the low 30s tonight.
322 PM CST Sat Nov 18 2017 The main cold front and associated precip has surged east through the region, leaving the area open to brisk cold air advection in incoming ridge's tight pressure gradient. Aloft, sharply digging upper trof axis was also sliding to the east of the MS RVR Valley and toward the OH RVR Valley, driving long linear convective event down acrs those areas. after this trof pushes to the east, the upcoming week to be characterized by mainly dry weather with up and down temp trends. Northern plains ridge axis on track to slide southeastward acrs the area through Sunday morning. Upstream ridge axis will slide east-southeastward through the area, but take most of the day to do so.
1236 PM EST Sat Nov 18 2017 Low pressure over central Kansas early this morning will deepen rapidly as it streaks northeast into northern Ohio by evening. 00Z RAOBS indicating strong kinematics associated with upper trough extending through the CONUS. High pressure building into the TN valley will have winds backing around to a more westerly direction and bring an end to any remaining lake effect Sunday morning.
143 PM PST Sat Nov 18 2017 Upper level high pressure over Baja California will continue to ridge northward throughout the period.
312 PM CST Sat Nov 18 2017 A weak ridge of high pressure will move across the area overnight, bringing mostly clear skies and dry conditions. Generally sided towards the warmer end of guidance in a situation like this, more like MAV values.
Little sensible weather is expected overnight with surface ridging sliding across the Plains and toward the Missouri River Valley by 12Z Sunday.
Tonight and Sunday Relatively quiet 24 hour coming up as the one main system heads toward the northeast CONUS and high pressure builds toward the Great Lakes. The 19z MSAS surface analysis showed an area of low pressure over northwest OH, bringing thunderstorms to the Ohio Valley. An area of high pressure was centered over the northern High Plains. Any lake effect snow showers or flurries should diminish Sunday morning as the ridge of high pressure approaches and winds back more to the west.
That said, lows should dip into the upper teens north to the low to mid 20s south. High pressure ridge will pass across the state on Sunday and will lead to a transition to west/southwest winds by the afternoon and the return of warm advection.
Temperatures across far north central Kansas already down to the low 40s, with upper 50s and falling along and south of I35. Clouds, showers and winds move east and diminish through the afternoon, and should bring enough sunshine to get highs in to the lower 50s. The cooler airmass in place overnight will drop lows for Saturday night back down into the upper 20s. High pressure will still be influencing the area Sunday keeping conditions dry with near seasonable temperatures.
Synoptic moisture peels out to the northeast through this evening as low pressure continues to track by to our south. Background pattern remains positive PNA, with high amplitude ridging over the western CONUS and troughing over the eastern. A series of clippers running along the baroclinic zone, and through the Great Lakes, will provide periodic reinforcement of the eastern troughing with colder air helping to deepen the troughing.
The cold front has quickly traversed the forecast area this morning and is generally located along a line from eastern Missouri to northcentral Arkansas and extending down into Texas.
236 PM CST Sat Nov 18 2017 Blustery northwest winds prevailing over the region this afternoon following the passage of this morning's strong cold front. From a sensible weather standpoint, the upcoming week looks nothing less than boring as high pressure dominates the weather pattern across the Central U.
159 PM CST Sat Nov 18 2017 After yesterday's record warmth, temperatures were about 30 degrees cooler this afternoon thanks to an early day cold front.
At the surface, low pressure will deepen and lift rapidly northeast from the Middle Mississippi River Valley this morning into the Great Lakes by this afternoon. As this occurs, a trailing cold front will surge southeast across the Mid South, moving across the Mississippi River by early afternoon. High temperatures should occur during the first part of the day with highs in the lower to middle 70s. Drier conditions along with much cooler temperatures are anticipated tonight with lows dropping into the 30s by early Sunday morning.
Clouds, and possible a few showers, will move into the western portion of the region during the afternoon as a cold front rapidly approaches.
This will make for a rather cool night with temps hovering around the freezing mark.
1021 AM MST Sat Nov 18 2017 Cold front is through. then building inversions as warmer air drifts back overhead with a flat ridge building aloft.
Gusty winds out of the south will continue into this evening before a cold front crosses the area. Winds should diminish after sunrise Sunday as the cold front moves east of our forecast area. Cooler air working in behind the front combined with lingering moisture over the eastern mountains will produce some snow showers overnight across the higher terrain, but accumulations should top out around 1-2 inches.
Clouds are increasing over the western portion of the area this afternoon ahead of a rapidly approaching cold front.
High pressure will build across the region over the weekend.
High pressure will build in behind it over the next 24 hours.
Sunday: Ridge axis will moving across the forecast area during the day with winds increasing/backing.
Road impacts should remain minimal given road temps in the mid 30s, but a couple of slushy spots aren't out of the question on bridges/overpasses. Strengthening low pressure passing by well to the south today. Associated with the low is a sharpening mid-level short wave and area of mid-level frontogenetical forcing that will pass across southern Wisconsin this morning. Increasing northerly winds in the low levels will pull colder air across southern Wisconsin through the morning. Pavement temperatures will remain above freezing, but strength of sloping frontogenetical forcing may result in a burst of wet snow and reduced visibilities with rapid accumulations on grassy and colder surfaces.
Subsidence and drying behind departing upper trough have cleared skies out for the most part. The upper trough axis is just about out of the forecast area at this time this morning, with northwesterly flow aloft as an upper ridge builds in from the west. Strong subsidence on the backside of the trough pushed strong winds across most of the plains over the last couple hours with gusts of 35 to 50 mph. Northwesterly winds will continue around 15 to 30 mph over the high country and far northeastern plains, much lighter elsewhere.
A low amplitude upper ridge will approach the area Sun afternoon. Water vapor loop indicated an upper level trough along the southwestern MAN. North-south upper level jet was on the west side of the trough. Will see several low pressure systems move east across south central Canada, with milder temps ahead of it and a sharp cooldown and northwest winds behind them.
A cold front will move east of central Indiana late this afternoon and an upper trough will sweep through in its wake this evening.
339 PM CST Sat Nov 18 2017 A strong cold front is moving right along unaffected by early heating now as it stretches from Toledo Bend to Monroe. It was windy all day, but notably so along and right behind the cold front with some gusts toward 40 mph from the Northwest. Even overnight will be breezy in the wake of this cold front as strong high pressure arrives in the Four State Area. This high will drift overhead into late tomorrow, but still a typical second colder night coming with radiational cooling for overnight Sunday.
Warmer Sunday as lee troughing develops over the high plains and downslope flow results.
Storm system and cold front will move through AR this afternoon to tonight, and develop scattered showers and isolated thunderstorms. Damaging winds will be the greatest threat, especially if the low level jet from 40-50 knots can make its way to the ground with storms. Currently the cold front was just pushing into far northwest AR, with a northwest wind at 15 to 25 mph with some gusts over 30 mph. Short range strongest lift is seen over northern AR today, and hence the highest POP and convection chances. The rest of the weekend wl be drier and much cooler as high pressure settles into the region.
These wind gusts will gradually diminish this evening as the low level lapse rates weaken. Another short wave trough will move through the region tonight.
1243 PM EST Sat Nov 18 2017 High pressure is forecast to keep the weather quiet through the TAF period with VFR conditions.
Aloft - Ridging centered south of the Baja Peninsula sprawled east to FL while a low on the west shore of Hudson Bay troughed down to the southern plains. High pressure in the Atlantic near 35 North Latitude/ 70 West Longitude reached across Fl to most of the Gulf of Mexico. During the rest of the weekend the upper trough pivots to the eastern seaboard as the ridge drops south of the state. The bulk of the energy with the upper troughs sweeps through the Mid-Atlantic states and the front moves across the area with a narrow swath of deeper moisture. Lows tonight will be a few degrees above normal but then the highs Sun cool to near normal.
Strong winds just off the surface and the pressure gradient behind the cold front are both contributing to winds out of the NW sustained in excess of 20 mph, gusting 30 to 40mph. Although the ground is warm, some elevated surfaces/bridges with residual water left from today may get slick once temps drop below freezing. Tomorrow, expecting plenty of sun as high pressure starts to build back into the region. Temps drop into the 20s again on Sun night, though a couple degrees warmer than tonight as winds come around to the south/southwest.
A relatively strong cold front that moved through South Central Texas late this morning and the first half of the afternoon is beginning to exit Lavaca, DeWitt, and Karnes Counties. Relatively light 5-10 mph winds under mostly clear to partly cloudy skies and high pressure should set up a cool, but otherwise pleasant November afternoon with highs in the 60s.
/issued 411 AM CST Sat Nov 18 2017/ A potent trough axis will move across the area today with the mean flow becoming northwesterly tonight. NW flow aloft will persist through the weekend though a deepening trough will slide across the region Sunday night.
At the surface, low pressure was over eastern KS, while a cold front trailed from near Chicago to near Kansas City and then to north of Amarillo. Lows should drop into the lower and mid 20s, despite weak warm air advection late tonight.
302 PM CST Sat Nov 18 2017 Strong cold front continues to push across southeast TX late this afternoon as advertised. Sunday will start noticeably colder with morning mins in the lower to mid 40s roughly north of I-10 and west of U. Highs tomorrow will top out in the low to mid 60s.
306 PM CST Sat Nov 18 2017 A cold front has crossed the Mississippi River and continue to move east across the forecast area. As the cold front moves out of west Tennessee, the thunderstorms will be out of the region and the Severe Thunderstorm watch will be cancelled. Behind the cold front, gusty northwest winds will continue to blow for a few hours and the Wind Advisory will remain in effect through this evening. High pressure will be over the southern Plains by Sunday morning giving us a dry and chilly day.
A few locations may flirt with freezing, particularly in the northwest where the surface winds will be the lightest. Sunday morning will be the coolest morning of the week in the wake of today's strong cold front.
The cold front is moving into central Arkansas at this time. At the surface, low pressure will deepen and lift rapidly northeast from the Middle Mississippi River Valley this morning into the Great Lakes by this afternoon. As this occurs, a trailing cold front will surge southeast across the Mid South, moving across the Mississippi River by early afternoon. High temperatures should occur during the first part of the day with highs in the lower to middle 70s. Drier conditions along with much cooler temperatures are anticipated tonight with lows dropping into the 30s by early Sunday morning.
Highs today will be much warmer than what we normally expect for this time of year. This increasing moisture will limit overnight lows to numbers warmer than seasonal normals.
720 AM EST Tue Jan 30 2018 A cold front extending from a low in Pennsylvania to central Georgia will move off the East Coast today. High pressure over the Mid Mississippi Valley will move southeast today, reaching the central and southern Appalachians tonight, then progressing offshore on Wednesday.
/Issued 333 AM EST Tue Jan 30 2018/ Low pressure off the Carolina coast will continue to move NE through tonight. This will allow the high pressure centered over the Northern and central plains to push southeast and clear things out over GA for the rest of the short term. This ridge becomes centered over the MS river valley later this afternoon and over GA/SC/NC by Wed morning. This ridge building in will allow the pressure gradient over the area to weaken today and the gusty NW winds will diminish to 10kt or less through tonight.
952 AM EST Tue Jan 30 2018 Windy conditions will prevail in the wake of a cold front today across central NC. Arctic high pressure will build across the Carolinas through the middle of the week leading to dry conditions. Temperatures are above freezing everywhere now with the exception of the immediate triad where a coating of snow has kept temps down this morning. - Ellis The main story of the day will be the blustery conditions that will develop almost immediately behind the cold frontal passage, driven by strong cold air advection, and an associated well-mixed boundary layer up to around 850 mb after sunrise, resulting in frequent NWLY wind gusts of 22 to 28 kts, and a few up to 35 kts.
We discussed upgrading central Carbon County to a warning, however, the low and mid level winds are not unidirectional and high winds appear less favorable at Rawlins, even though it will still be quite windy there. As a cold front passes, winds will decrease after midnight, cutting off the mixing of stronger winds aloft to the surface. A chance of snow will move southward along the cold front and baroclinic band over our northern and central counties.
A ridge of high pressure will be the dominate feature this week.
713 AM EST Tue Jan 30 2018 A cold front extending from a low in Pennsylvania to central Georgia will move off the East Coast today. High pressure over the Mid Mississippi Valley will move southeast today, reaching the central and southern Appalachians tonight, then progressing offshore on Wednesday.
warmer temperatures are forecast with highs in the upper 40s and 50s for most locations. Winds remain gusty overnight and into Wednesday as a 40-60KT LLJ spreads over the region ahead of an approaching cold front from the northwest. The stronger more southwesterly winds Wednesday look to be more over Southeast Oklahoma into Northwest Arkansas with much warmer temperatures again across the CWA. though with the warmer temps afternoon min relative humidities still look to fall into the 25 to 40 percent range.