Aikyam-Lab/Synoptic-Bench huggingface dataset:
An area of low pressure is just north of the International Border, with a weak cold front slowly moving southeast across the region. Skies will remain mostly cloudy tonight, with low temperatures in the upper single digits to the lower teens. The snow showers look to move east of the region by 12Z Tuesday, then high pressure will bring partly cloudy skies throughout much of Tuesday. Clouds increase late Tuesday evening as another cold front begins approaching the region from the north.
703 PM EST Mon Feb 10 2020 A cold front will slowly settle south across the region tonight and Tuesday.
Mostly sunny to partly cloudy skies are expected for Tuesday as high pressure builds over the region.
650 PM EST Mon Feb 10 2020 Drier air is forecast to gradually filter in tonight and Tuesday behind a slow moving cold front.
709 PM EST Mon Feb 10 2020 Rain will slowly taper off through Tuesday as high pressure creeps ito the region.
Cooler and cloudier conditions will then gradually move back into the area during the middle of the week.
Light snow if favored north with a mix of freezing and frozen precip expected at KLBB. With this break in the action, and very little freezing precipitation impacts at this time, will hold off on advisory but that may have to be issued later today or early Tuesday. As upper low rounds the corner just south of Arizona overnight, lift will increase with precipitation becoming more widespread across the region especially between 3 am and 6 am. Precipitation type problematic but suffice to say there will be a wintry mix of rain, freezing rain, and light snow across most of the area on Tuesday. This pattern of an open trough.
335 PM CST Mon Feb 10 2020 This afternoon, a weak cold front will continue to progress eastward through the region. Clouds and a light northwest wind will keep temperatures warmer and should prevent fog development overnight.
145 PM PST Mon Feb 10 2020 Low pressure will move away from the region as a strong ridge of high pressure builds over the Pacific Northwest. Satellite imagery show just a few wrap around clouds over Kern County as a low pressure center moves across Baja California. Moderate to locally strong northeast flow continues over the forecast area with the low spinning to the southeast of the area. Winds will diminish overnight and come to an end on Tuesday as the low moves into Arizona.
High pressure aloft will continue over the area through Tue.
However, will expect showers to redevelop heading into tonight, more so early Tuesday morning as the cold front currently located in the Hill Country slides south tonight. With dewpoints reaching around 70 degrees near the coast, sea fog is expected to continue this evening through Tuesday morning as the warm, moist air flows over the cooler shelf waters. As for the High Rip Current Risk, extended the risk through early Tuesday morning as swell periods and heights remain elevated.
832 PM CST Mon Feb 10 2020 Weak high pressure over the Central Plains will settle across central and northern Illinois through Tuesday, bringing dry conditions and breaks in cloud cover.
Will still see some snow showers into this evening mainly over the higher terrain of se Wy.
Expect some increase in mid-high level clouds tonight due to increasing warm air advection ahead of low pressure passing through southern Canada. With the high pressure ridge close by resulting in light winds and a rapid inversion developing this evening, temperatures should fall off quickly into the 10 to 20 degree range. This should happen before mid-high clouds thicken up overnight due to increasing elevated warm air advection ahead of low pressure moving through southern Canada. A compact short wave associated with the low will quickly move across central WI late tonight and early Tuesday. High pressure will re-exert itself across the region later Tuesday into Tuesday night with another cold night expected.
The best chance for an inch or two of snow will be over the higher terrain of Houghton and Keweenaw counties. Another ridge will build into the area Tuesday afternoon with clearing skies for most locations.
708 PM EST Mon Feb 10 2020 A cold front will slowly settle south across the region tonight and Tuesday.
558 PM EST Mon Feb 10 2020 Rain will slowly taper off through Tuesday as high pressure creeps ito the region.
Latest surface analysis places a cold front along a Clarksdale, Mississippi to Savannah, Tennessee line.
945 PM EST Mon Feb 10 2020 Drier air is forecast to gradually filter in tonight and Tuesday behind a slow moving cold front.
Meanwhile a surface trof extended from northern MN into central NE. High pressure was centered over northeast KS.
LIFR/IFR ceilings are expected through the rest of the state as a low pressure system works its way through the S/SEern region.
Craig to Casper 850/700mb height gradients begin to increase as a low pressure system tracks across Montana. Will still see some snow showers into this evening mainly over the higher terrain of se Wy.
344 PM CST Mon Feb 10 2020 The short term looks to be fairly quiet with a weak surface through moving through tonight, then surface ridging holding in place into Tuesday evening.
505 PM CST Mon Feb 10 2020 Weak high pressure over the Central Plains will settle across central and northern Illinois through Tuesday, bringing dry conditions and breaks in cloud cover.
Weak cold front/stationary boundary has stalled in a SW to NE orientation, leaving the south in the mid to upper 50s and far north in the lower 40s.
With the high pressure ridge close by resulting in light winds and a rapid inversion developing this evening, temperatures should fall off quickly into the 10 to 20 degree range. This should happen before mid-high clouds thicken up overnight due to increasing elevated warm air advection ahead of low pressure moving through southern Canada. A compact short wave associated with the low will quickly move across central WI late tonight and early Tuesday. High pressure will re-exert itself across the region later Tuesday into Tuesday night with another cold night expected.
Temperatures currently range from the low 40s northwest to low 60s southeast. Latest surface analysis places a cold front along a Clarksdale, Mississippi to Savannah, Tennessee line.
Mild night ahead with lows only falling into the low to mid 60s, except upper 60s along the immediate Treasure Coast. Highs reaching the low to mid 80s. High pressure continues move eastward into the Atlantic. High pressure over the western Atlantic continues eastward.
301 PM CST Mon Feb 10 2020 An area of low pressure is just north of the International Border, with a weak cold front slowly moving southeast across the region. Skies will remain mostly cloudy tonight, with low temperatures in the upper single digits to the lower teens. The snow showers look to move east of the region by 12Z Tuesday, then high pressure will bring partly cloudy skies throughout much of Tuesday. Clouds increase late Tuesday evening as another cold front begins approaching the region from the north.
Offshore flow will result in a warming trend that will persist into Tuesday with breezy and gusty winds over the higher terrain of the North Bay.
557 PM CST Mon Feb 10 2020 This afternoon, a weak cold front will continue to progress eastward through the region. Clouds and a light northwest wind will keep temperatures warmer and should prevent fog development overnight.
Cooler temperatures and even another chance for some more precipitation coming our way as we head into the end of the week. WESTERN RIVERSIDE AND SOUTHWESTERN SAN BERNARDINO A cut off low pressure system currently over northern Baja California has provided the area with some appreciable amounts of rain and snow thus far, most amounts ranging from a third to half an inch of rain, with light to moderate amounts for snow, with a few areas receiving in upwards of 6 inches.
Models continue to advertise the next main wave of precipitation which satellite and radar imagery currently depict building east northeast through the Lower Mississippi Valley toward the forecast area. Thus, will stay the course with the flash flood watch while maintaining the wind advisory for the higher terrain along the North Carolina border for the remainder of the night.
334 PM CST Mon Feb 10 2020 Weak high pressure over the Central Plains will settle across central and northern Illinois through Tuesday, bringing dry conditions and breaks in cloud cover.
High pressure over southeast Iowa is mainly bringing sunshine, and seasonally mild conditions to snow free areas in the south half, and a chilly day with patchy stratus north. This evening, clear skies over snow should allow for another drop into the lower to mid teens, while over snow free areas, lower to mid 20s are expected.
345 PM MST Mon Feb 10 2020 Latest upper air analysis shows the same setup as yesterday, with a long wave trough over the Great Basin extending to the southwest. The closed low is now over Baja California, with the other part of the jet stream over the Northern Plains. At the surface a pre-frontal trough had moved through, causing winds to turn to the north. Tonight current data shows the track of the closed low will be slightly further south than what was shown yesterday. Late tonight a weak cold front will move through. This will allow WAA to commence during the afternoon, warming temperatures higher than what they would have been otherwise due to the weak cold front passage. The long wave trough axis will move over the forecast area by the late afternoon.
255 AM EST Tue Feb 11 2020 Slow moving cold front that is crossing KY over the southeastern part of the state will push out to the east and southeast after 12z.
1239 AM EST Tue Feb 11 2020 A cold front will slowly settle south across the region tonight and Tuesday.
The front will sag south tonight as weak high pressure builds.
1038 PM MST Mon Feb 10 2020 Latest upper air analysis shows the same setup as yesterday, with a long wave trough over the Great Basin extending to the southwest. The closed low is now over Baja California, with the other part of the jet stream over the Northern Plains. At the surface a pre-frontal trough had moved through, causing winds to turn to the north. Tonight current data shows the track of the closed low will be slightly further south than what was shown yesterday. Late tonight a weak cold front will move through. This will allow WAA to commence during the afternoon, warming temperatures higher than what they would have been otherwise due to the weak cold front passage. The long wave trough axis will move over the forecast area by the late afternoon.
Temperatures remain near to above freezing across the FA and have been slow to fall. The advisory area was extended in part for the potential for light freezing rain creating slick road conditions. Light snow if favored north with a mix of freezing and frozen precip expected at KLBB. With this break in the action, and very little freezing precipitation impacts at this time, will hold off on advisory but that may have to be issued later today or early Tuesday. As upper low rounds the corner just south of Arizona overnight, lift will increase with precipitation becoming more widespread across the region especially between 3 am and 6 am. Precipitation type problematic but suffice to say there will be a wintry mix of rain, freezing rain, and light snow across most of the area on Tuesday. This pattern of an open trough.
-RA for KCNM/KMAF as they remain above freezing through the daytime.
1107 PM CST Mon Feb 10 2020 Weak high pressure over the Central Plains will settle across central and northern Illinois through Tuesday, bringing dry conditions and breaks in cloud cover.
1013 PM EST Mon Feb 10 2020 A cold front will slowly settle south across the region tonight and Tuesday.
A cold front is pushing through the region shifting winds to the north. Will keep the low CIGS despite the frontal passage through the day Tuesday.
The southerly low level flow over the cooler nearshore waters will continue to cause dense sea fog near the coast and offshore with patchy fog farther inland.
1115 PM CST Mon Feb 10 2020 This afternoon, a weak cold front will continue to progress eastward through the region. Clouds and a light northwest wind will keep temperatures warmer and should prevent fog development overnight.
Also will have some drier air in the lower levels working its way into western Kansas early Tuesday morning as an area of high pressure builds in from the northwest. This afternoon across southwest Kansas it will be cloudy with temperatures climbing mainly into the low to mid 30s.
Upper low over the southwest US opens and moves rapidly east, making it into the plains by days end Wed, then over the mid-state later Thu. Scattered pcpn will spread back in on Wed as a warm front shifts north but we are not likely to see high amounts most of the day. Trailing cold front pushes by late Wed night and should be well southeast by sunrise Thu.
1048 PM EST Mon Feb 10 2020 A cold front will slowly settle south across the region tonight and Tuesday.
108 AM EST Tue Feb 11 2020 Drier air is forecast to gradually filter in tonight and Tuesday behind a slow moving cold front.
Locally gusty winds will persist in the hills through Tuesday morning, especially across the highest hills of the North Bay.
/ISSUED 943 PM CST Mon Feb 10 2020/ This afternoon's cold frontal boundary has become stationary across the central forecast area this evening. higher rain chances may exist closer to the coast due to the lower level focus provided by the remnant boundary, whether it be a cold or northern-advancing warm front.
1051 PM EST Mon Feb 10 2020 An upper-level composite analysis this evening reveals the continuing influence of deep ridging over the Florida Keys, adjoining coastal waters, and region at large. A deep layer mean anticyclone is centered currently over the northwestern Caribbean. However, the lower-level anticyclone center is positioned out over the western North Atlantic, several hundred miles east of the Florida Peninsula. A fairly sharp ridge extends westward from the center, nearly reaching the western Gulf of Mexico. Farther north, closer to the ridge axis, ESE breezes are lighter but still blowing fresh over Florida Keys coastal waters.
1222 AM EST Tue Feb 11 2020 Light rain south and east of Pittsburgh will taper off this morning as high pressure moves in from the west.
1010 PM MST Mon Feb 10 2020 WV imagery this afternoon again depicts a positively tilted longwave trof extending from srn CN swwd to near the CA coast. Within the trof, several vort lobes are evident, the most prominent of which are located off the Baja CA coast, near the UT/ID/WY border, across ern MT/the wrn Dakotas, and farther north into SK/MB. Satellite trends indicate general deformation of these vort lobes along the trof axis, with little change to the overall pattern.
250 AM EST Tue Feb 11 2020 Rising heights with a building mid/upper-level ridging will lead to continued warm and humid conditions, with some locations approaching record highs for the next couple of days. The current forecast calls for some patchy sea fog mainly over the northern waters adjacent to the Nature Coast region and this makes sense as temperatures are cooler in that region.
/Issued 323 AM EST Tue Feb 11 2020/ A slow moving cold front will move into the area today before stalling across central tonight into Wednesday.
435 AM EST Tue Feb 11 2020 Light rain south and east of Pittsburgh will taper off this morning as high pressure moves in from the west.
cloud cover will slowly decrease from north to south this morning as an upper level trough slowly moves southeast into the area bringing some drier air aloft with it. High temperatures are expected to range from the the low to upper 30s in far eastern Colorado to the upper 30s to 45 degrees east of the CO/KS border. For tonight gusty southwest winds continue through about midnight along and west of the CO/KS border then start to slowly veer to the southwest through northwest ahead of an approaching cold front. Could see some clouds across the northwest corner of the area on the leading edge of the cold front. High temperatures range from the mid 30s to low 40s in far eastern Colorado to the low to mid 40s elsewhere across the area.
A strong cold front will drop south across the region around midnight tonight with gusty north winds and rapidly falling temperatures.
An upper trough was located near Baja California with moisture advection ahead of the trough keeping mid to high clouds over the CWA for much of the night. Highs are expected to be near normal once again with highs in the low to mid 40s. The aforementioned upper trough is progged to track to the east and be centered over eastern TX and OK by early Wednesday morning, bringing the next chance of precipitation to the CWA.
Given sfc temps near or even a bit above freezing any accumulation would be on elevated surfaces and thus travel impacts are not expected.
The clouds are associated with a 500-mb trough, which will continue to pass by to the east today. A smaller area of cyclonic vorticity associated with the upper level trough will propagate through this morning, and this will essentially help to keep some clouds around this morning. The southwesterly winds will draw in a bit of warmer air and will allow temperatures to rise into the mid-20s today.
Westerly winds on the northern edge of the high will be enhanced on the downslope side of the Coteau this afternoon and evening.
Moisture is still pretty limited with this next system, so overall accumulations will be light, maybe up to an inch for the northern Big Horn Basin, 1 to 2 inches for northern Johnson County, and 3 to 4 inches for the higher elevations of the Big Horn, Absaroka, and Teton Ranges, through Wednesday evening.
Accumulating snow is expected north of a line from Alliance to Burwell where up to a half inch of new snow is possible, up to an inch across the Pine Ridge.
721 AM EST Tue Feb 11 2020 Light rain south and east of Pittsburgh will taper off this morning as high pressure moves in from the west.
/issued 311 AM CST Tue Feb 11 2020/ A warm front has lifted back north into North Mississippi over the last couple of hours. The front will begin to sink back to the south as a cold front this morning. The warm front will lift back northward into North Mississippi by mid-morning on Wednesday. Temperatures will rise into the 60s, possibly lower 70s behind the warm front during the afternoon hours. The front will then begin shifting east as a cold front as an upper trough moves into the region.
Today Through Wednesday Night Southwest flow continues over Arkansas this morning with an upper low pressure system over northern Mexico. This low moves into New Mexico tonight and across Texas and Oklahoma Wednesday as the southwest flow continues over Arkansas. The highest rain chances will be over the south and southeast sections of the state today, with scattered showers returning to the north.
227 AM MST Tue Feb 11 2020 Positively-tilted trough and northwest flow continues across the western US this morning with trough axis stretching from the Upper Midwest into the Four Corners. A closed low continues to slowly meander south and east of the Baja Peninsula, having only moved a few hundred miles from this time last night. Trough axis will shift southeastward early this morning with subsidence and more westerly flow aloft this afternoon. Expect dry and slightly warmer temperatures this afternoon with downsloping westerly flow.
A ridge of high pressure will build in over the region today.
416 AM MST Tue Feb 11 2020 Positively-tilted trough and northwest flow continues across the western US this morning with trough axis stretching from the Upper Midwest into the Four Corners. A closed low continues to slowly meander south and east of the Baja Peninsula, having only moved a few hundred miles from this time last night. Trough axis will shift southeastward early this morning with subsidence and more westerly flow aloft this afternoon. Expect dry and slightly warmer temperatures this afternoon with downsloping westerly flow.
Temperatures will reach the low to mid 80s, with slightly cooler temperatures along the coast. A high pressure ridge axis draped over the area will continue 10-15 kt winds S/SSW north of the Cape and S/SE to the south.
Fog will continue to be a problem across the Gulf waters and coastal lakes and bays through Wednesday, with the passage of the cold front and arrival of drier air bringing the threat to an end, though it may persist a bit longer than the current advisory indicates. Upper low near the Baja is in the process of becoming entangled with jet energy diving south through the Intermountain West and Four Corners, which will aid in nudging this feature EWD today and tonight. This will have the effect of pulling the ERN flank of the front NWD and lifting it through the area as a warm front.
The backdoor cold front has moved across the Rio Grande Valley with strong east canyon winds. However, areas of freezing fog may develop overnight into Wednesday morning. Good looking storm is currently along the AZ/Mexico border, while a short wave trough to its north is feeding into the closed low. Most models including the high resolution models diminish snow over the north today. They also mostly show the southwest and south central higher terrain getting the higher snow amounts.
311 AM CST Tue Feb 11 2020 A warm front has lifted back north into North Mississippi over the last couple of hours. The front will begin to sink back to the south as a cold front this morning. The warm front will lift back northward into North Mississippi by mid-morning on Wednesday. Temperatures will rise into the 60s, possibly lower 70s behind the warm front during the afternoon hours. The front will then begin shifting east as a cold front as an upper trough moves into the region.
Cooler weather is expected Wednesday as low-level winds become north-northwesterly.
This trough will bring low level moisture and upslope, northwesterly flow to the mountains.
339 AM CST Tue Feb 11 2020 An upper trough was located near Baja California with moisture advection ahead of the trough keeping mid to high clouds over the CWA for much of the night. Highs are expected to be near normal once again with highs in the low to mid 40s. The aforementioned upper trough is progged to track to the east and be centered over eastern TX and OK by early Wednesday morning, bringing the next chance of precipitation to the CWA.
Biggest pros for strong to severe storms will be in the form of a strong cold front and increasing mid level flow. The strong cold front will absolutely give us decent forcing in the LL as it quickly moves through the area overnight. With that we can see a squall line with the cold front providing mainly a strong to damaging wind risk and as always down here can never rule out a tornado or two especially with any kinks or breaks in the line.
Rain chances are pretty much nonexistent as strong subsidence from a ridge of high pressure remains in control. The high temperatures and humidity will make a favorable environment once again for fog tomorrow.
Low pressure will move away from the region as a strong ridge of high pressure builds over the Pacific Northwest. A low pressure system that brought limited light precip to portions of central CA along with strong winds in some foothill areas is pulling away to the east while a high pressure ridge edges inland from the Pacific.
217 AM MST Tue Feb 11 2020 Latest upper air analysis shows the same setup as yesterday, with a long wave trough over the Great Basin extending to the southwest. The closed low is now over Baja California, with the other part of the jet stream over the Northern Plains. At the surface a pre-frontal trough had moved through, causing winds to turn to the north. Tonight current data shows the track of the closed low will be slightly further south than what was shown yesterday. Late tonight a weak cold front will move through. This will allow WAA to commence during the afternoon, warming temperatures higher than what they would have been otherwise due to the weak cold front passage. The long wave trough axis will move over the forecast area by the late afternoon.