Aikyam-Lab/Synoptic-Bench huggingface dataset:
Upper low offshore continues to push mid and high level clouds across the region this evening. Best chance for rain and higher elevation snow will be later tonight into Sat morning as a jet streak rotates around the low and across the forecast area. Mostly cloudy skies and periods of rain through Sunday as the upper low moves slowly northward along the coast. This low will cause tight surface pressure gradients and locally strong winds in the Grande Ronde valley and along portions of the Blue Mountain foothills into Saturday afternoon. The upper low will weaken and shift towards British Columbia Saturday night and Sunday. The lowest snow levels will be over south-central Washington into north-central Oregon.
The low will track across northern Wisconsin this evening, then start to fill as it reaches eastern lake Superior overnight. Quieter conditions look to set up Saturday night into Sunday as the area of low pressure that brought all the snow to the Northland today moves out. High pressure will eventually move into the region Sunday, but with fresh snow cover on the ground and 925 mb temps of -8 to -12 C, Sunday morning lows will be cold, with temperatures reaching into the single digits across the Arrowhead of MN and into the mid to upper teens across northwestern Wisconsin.
A cold front has swept through dropping anywhere from about 0.
Surface analysis showing rapidly moving cold front now advancing out of southeast Louisiana and extending southwest through the gulf waters. Under sunny skies will see temperatures rise generally into the low 60s this afternoon area- wide. Anticipating lows in the low to mid 30s through central Louisiana into interior southeast Texas, the mid to upper 30s along the I-10 corridor and low 40s at the immediate coast.
As of 1 PM MST/2 PM CST: An upper closed low located over southern Minnesota continues to move further towards the Great Lakes. Temperatures range from the low 30s in eastern Colorado to around 40 degrees near Hill City, Kansas. Tonight: Northwest flow develops over the High Plains as upper level ridging progresses over the area. Tomorrow: The ridge advances further east, with its axis reaching the Rockies by the afternoon. As a result, warmer temperatures near 50 degrees are in store. Another low pressure system moves onto the west coast.
Quiet conditions will continue through the short term as a ridge of high pressure moves over the forecast area on Saturday. Temperatures tonight will remain cool again, but increasing clouds overhead from the west, and a slight increase in winds overnight, will keep temperatures a little bit warmer and in the mid to low 20s (perhaps the upper teens out east where clouds will be fewer). Afternoon temperatures will be warmer as well and should reach into the 40s. allowing the warm up to continue as downslope flow off the higher terrain pushes temperatures into the mid-upper 40s.
As the low slowly shifts further northeastward and the gradient begins to relax, wind gusts will drop to less than 30mph this afternoon. This will help keep the atmosphere mixed and limit maximum radiational cooling, resulting in lows remaining in the lower to middle 20s.
Upper level ridging will move overhead late this weekend with a trough off the west coast of the US.
This is likely due to the extensive stratocu deck which is restricting full downward mixing of the higher winds aloft. Sub-freezing temperatures expected over the entire CWA with a hard freeze for many.
1031 PM MST Fri Nov 18 2016 Clear skies and cold temperatures expected overnight as high pressure builds in from the west. With relatively calm winds and fresh snow over the higher terrain, overnight low temperatures will bottom out around 5 to 10 degrees below average by Saturday morning. As mid to upper-level moisture rounds the ridge of high pressure, a few high clouds will work their way into the region on Saturday evening. Low temperatures Sunday morning will be notably warmer than Saturday as high clouds drift over eastern Utah and Western Colorado.
As this system pulls away from the plains, expect the low clouds on the backside of the system to diminish late this afternoon into this evening. Canadian high pressure will settle over the plains tonight, with the coldest temps of the season, so far, overnight into Sat morning. Upper ridging will dominate the weather pattern for the weekend, with a gradual return to southerly winds and moderating temps. This will shift the upper ridge to the east of the area with upper flow becoming more southwesterly.
A broad area of high pressure will lead to fairly quiet weather conditions for the weekend as winds gradually turn back to the south and warmer temperatures return. The ridge axis will be right over the Dodge City to Wakeeney areas with very light winds by dawn. For Saturday, an upper level ridge will move into the High Plains with a developing lee tough. The upper level ridge will carry some increasing moisture with thickening cirrus overcast. Highs will be slightly warmer and be around 50 degrees, with mid 50s far west near the Colorado border.
255 AM CST Sat Nov 19 2016 Water vapor imagery this morning shows the departing upper trough making its way across the upper Great Lakes region. Further west, an upper ridge is building over the inter mountain west, transitioning mean flow to the northwest in the central plains. Skies are sunny today while the CWA remains cool as the ridge axis drifts overhead. Light winds veer to the south tonight as the high pressure shifts eastward. Wind chill readings are similar to this morning, if not a bit cooler in the upper teens.
325 AM EST Sat Nov 19 2016 A strong, dry cold front will cross the area this afternoon and evening.
317 AM EST Sat Nov 19 2016 A strong, dry cold front will cross the area Saturday afternoon and evening. Strong upper level trough over the MS valley will advance eastward, and become negatively tilted. Despite dynamic forcing, dry airmass will preclude anything other than some midlevel clouds with the passage of the associated cold front. Lows in the low to mid 30s. As a reminder, since the growing season ended with our last freeze, frost/freeze products will not be issued for the sub-freezing temperatures that we are expecting Sunday night.
Locations to the east will see slightly warmer temperatures in the low to mid teens. High pressure builds into the central US by Saturday morning resulting in a quiet start to the weekend. A gradual warming trend will begin on Saturday, with highs reaching up into the low 40s across the southern forecast area and upper 30s across the north.
Under sunny skies, expect high temperatures today mostly in the lower 60s along with decreasing winds under a relaxing gradient. Under clear skies and light winds overnight, we are looking at low temperatures to possibly fall to near freezing up north (in/around the Houston/Trinity counties area).
High pressure will shift east into the plains states this weekend.
950 PM MST Fri Nov 18 2016 Quiet weather seen across the CWA through the weekend with an upper ridge sliding across the region Saturday and Saturday night. Upper flow will turn southwesterly on Sunday ahead of the next upper trough that will move into the far western CONUS by Sunday evening.
This very powerful cold front looked so promising at 3 pm on radar, but has since then quickly fizzled as it approaches the western wall of Central Alabama. A strong cold front is set to move through Alabama overnight, with an accompanying area of isolated to scattered showers, although there remains a weakening trend as the night progresses. 16 Dry air, cooler, and breezy conditions will build in behind a cold front on Saturday.
Main hazard highlight will be the below freezing temperatures expected for portions of the Edwards Plateau, Hill Country, and areas of the I-35 corridor early Sunday morning. As for today, Saturday - expect a much cooler and windy start with readings in the upper 30s and 40s by dawn. The wind will make it feel even cooler despite the full sun.
These winds may cause areas of blowing snow and terrain obscurations through the morning, but temperatures should climb above freezing in the afternoon and put an end to blowing snow obscurations. Tonight Through Saturday High pressure will be over western and central Wyoming tonight and Saturday with warming temperatures aloft increasing the strength of inversions over the valleys and basins.
307 AM CST Sat Nov 19 2016 The cold front has passed the entire area and latest radar trends indicate that the precipitation has ended across our region. Meanwhile, we will be under northwest flow aloft, as the upper trough pushes east and a ridge slowly pushes east into the Plains.
A cold front will sweep across the area early in the period.
107 AM EST Sat Nov 19 2016 A cold front will push through tonight, bringing showers and gusty winds. Cold front is just west of the CWFA this evening. This is in part to digging s/wv energy within a large scale mid level trough, along with upper level divergence from a the RR quad of an upper level jet. Much colder air will filter in behind the front, with lows ranging from the upper 30s west to the lower 40s east by sunrise. Mid/Upper level trof to pivot east through the Great Lakes Saturday/Saturday night. In the wake of the overnight cold frontal passage strong CAA will be ongoing Saturday morning. Cold temperatures Sunday with highs from the upper 30s ne to the lower 40s sw.
/issued 229 PM CST Fri Nov 18 2016/ A strong cold front moved through the area this morning and it will bring the first freeze of the season to many areas north of I-10 tonight.
Shower activity remaining in the FA is now post-frontal, with surface observations indicating the cold front now well east of the CWA. Cooler air and gustier winds have been left in the wake of the front, with temperatures already in the 40s across eastern Arkansas, as winds gust to near 30 kts there. Surface analysis this afternoon places a cold front from Central Illinois back through Southeast Missouri, Central/Southwest Arkansas and Northeast Texas. Regional WSR-88D radar trends show showers and a few thunderstorms occurring along and just behind the cold front. A cold front will move through the Mid-South tonight.
245 AM MST Sat Nov 19 2016 Quiet weather is expected this weekend as all models show a low amplitude ridge axis aloft nudging eastward into the central Rockys today. This ridge axis will remain west of Wyoming today with northwest flow aloft across the plains. warmest along and just east of the Laramie Range due to windy conditions and some warmer downslope flow. This may change on Sunday as the flow becomes more southwesterly behind the ridge axis. Believe it will be warmer than Saturday though especially as any remaining snowpack will likely melt during the day.
Aloft: Sun into Sun night a fairly high amplitude ridge will crest over the region with its departure resulting in SW flow Mon. The next trof will move onshore from the Pac Sun night and arrive here Tue. trof Thu. and ridge Fri. but the lee trof will be strengthening and Mon eve cyclogenesis will begin over CO. This high will quickly drift E with some type of very weak low and sfc trof fcst to move thru Thxgvg Day.
Far eastern plains near the KS border could become breezy (10-20 mph) by afternoon as sly flow increases ahead of the lee trough. Saturday night and Sunday, An upper ridge over the Centennial State will result in dry weather. On Sunday, weather will be warmer with highs around 10 to 15 degrees above average. The upper ridge will be moved south and east with the approach of a strong trough over the west coast.
1125 PM CST Fri Nov 18 2016 Cold front and associated -SHRA/-TSRA have shifted east of the region leading to SKC and slightly breezy northwest wind speeds /aoa 10-13 kts/. /issued 910 PM CST Fri Nov 18 2016/ Cold front has cleared our far southeast zones late this evening and regional radar mosaics show that the precipitation has pushed south and east of our region as well.
/Issued 212 PM CST Fri Nov 18 2016/ Sub-freezing temperatures likely for all of the panhandles tonight.
That said, still sticking with the cooler side of any guidance or even a little below for lows tonight, and likewise for highs tomorrow.
High pressure will begin to build into the region later tonight and be over the forecast area during the day on Saturday.
/issued 805 PM CST Fri Nov 18 2016/ Temperatures across the Oklahoma Panhandle and far northwest Oklahoma are at or below freezing early this evening. Bryan County will remain in the freeze watch for Saturday night/Sunday morning as the ridge will remain in the vicinity allowing temperatures here to fall close to or below freezing.
1203 AM EST Sat Nov 19 2016 Dry high pressure will slide farther off the Southeast Coast tonight ahead of an approaching cold front. Cooling has been quicker to occur through the evening than previously expected, and based on the latest observations have tweaked the low temperature forecast down a few degrees. The trailing cold front will be approaching early Saturday morning. This combined with warm advection ahead of the front will result in warmer overnight temperatures than previous nights. Amplified/negative tilted upper trough over the Great Lakes into the Mid Atlantic/Carolinas will drive a dry cold front through the area Saturday afternoon. Weakening cold advection overnight with temperatures falling into the 30s although appears to remain above freezing with strong mixing in the boundary layer.
312 AM EST Sat Nov 19 2016 Mild weather today will be brought to an abrupt halt by a late day cold front. A chilly weekend will follow including some freezing temperatures at night.
312 AM EST Sat Nov 19 2016 High pressure will slide east today as a broad area of low pressure approaches from the west. Low pressure will move into New England tonight and will intensify over southern Quebec on Sunday.
314 AM CST Sat Nov 19 2016 Intense low pressure was located in the northern Great Lakes region and continued to produce howling winds up to 45 mph and cold temperatures. During the afternoon the winds will decrease as the gradient slackens, as the low pressure lifts farther to the northeast and high pressure ridge moves into Iowa from the Plains. Maximum temperatures will be in the mid 30s north to the lower 40s south. Tonight: Cold night ahead as high pressure ridge will be over the cwa with light winds and clear skies.
although most locations are near or just above freezing.
1113 PM EST Fri Nov 18 2016 High pressure will remain in place through Saturday. Low pressure will approach from the Great Lakes region Saturday night and move over the area on Sunday.
High pressure across the Northern Plains this morning is forecast to propagate east into the Upper Mississippi Valley through the day. Continued return flow tonight and some mid to upper level cloud cover should hold temperatures much warmer compared to this morning, with lows of 15 to 25 forecast.
104 AM EST Sat Nov 19 2016 Dry high pressure will slide farther off the Southeast Coast tonight ahead of an approaching cold front. Cooling has been quicker to occur through the evening than previously expected, and based on the latest observations have tweaked the low temperature forecast down a few degrees. The trailing cold front will be approaching early Saturday morning. This combined with warm advection ahead of the front will result in warmer overnight temperatures than previous nights. Amplified/negative tilted upper trough over the Great Lakes into the Mid Atlantic/Carolinas will drive a dry cold front through the area Saturday afternoon. Weakening cold advection overnight with temperatures falling into the 30s although appears to remain above freezing with strong mixing in the boundary layer.
932 PM MST Fri Nov 18 2016 Current surface map shows high pressure across eastern Montana into the western Dakotas.
Looks like the cold front is just about to exit the eastern portions of the Ozarks.
Upper level trough was over the MN arrowhead with an upper level jet on the west side of the trough. Current thinking is to keep things around the 20 degree mark in the snow free zones while dropping into the low to mid teens where there is snow. Not a terrible mid November day on tap for Saturday as high pressure builds in. Although cooler than the first half of the month, high temperatures should be right around normal values, give or take a few degrees (low to mid 30s). 500 mb ridging moves into the N Plains Saturday night into Sunday in the wake of the storm system moving off to the east.
Showers working through western Middle Tennessee at 03z will continue its trek eastward over the next several hours followed by a cold front that is currently in western Tennessee. Band of showers moving through Middle Tennssee at this time with cold front not far behind will continue on eastward trek next several hours.
1154 PM CST Fri Nov 18 2016 Look for much colder temperatures tonight in the wake of the strong cold front which moved across the region today.
203 AM MST Sat Nov 19 2016 Western conus troughing will support mean ridging over the region through most of the period. Weak lee side low will progress into the region Sunday, with renewed pressure falls expected as the western conus trough shifts east. This will support better mixing across ne WY and the Black Hills and parts of the SD plains, with slightly warmer temps expected.
1228 AM EST Sat Nov 19 2016 At 8pm EST a cold front stretched roughly from Fort Wayne IN to Hartford KY to Jackson TN. Amounts similar to that are possible in southern Indiana and central Kentucky tonight, though most spots will probably be closer to the lower end. Strong cold front still on track to bring showers into our region this evening and continuing them eastward overnight. High pressure behind tonight's cold front will be slow to head eastward.
247 AM CST Sat Nov 19 2016 The cold front has passed the entire area and latest radar trends indicate that the precipitation has ended across our region. Meanwhile, we will be under northwest flow aloft, as the upper trough pushes east and a ridge slowly pushes east into the Plains.
1110 PM CST Fri Nov 18 2016 A cold front has cleared the coast but clouds still hanging in near the coast due to some weak isentropic upglide. /ISSUED 935 PM CST Fri Nov 18 2016/ The cold front continues to move across the coastal waters tonight, with an associated broken line of showers and thunderstorms pushing into the Gulf with it. Cold air advection behind the front and lack of cloud cover is expected to allow overnight lows to range from the low to mid 40s north of Interstate 10, with upper 40s to mid 50s south. Much cooler temps and breezy conditions will prevail in its wake.
1242 AM EST Sat Nov 19 2016 A strong cold front was pushing through the region early this morning.
/Tonight through Saturday/ Low pressure has lifted into northern Wisconsin this afternoon with strong cold advection still ongoing across Iowa. The diminishing trend will continue on Saturday as high pressure ridge approaches from the west. High temperatures will range from the lower 30s north to the low 40s south.
Cold front that moved thru the area this morning has ushered in much cooler and drier air into the region, making it feel much more like November. A pocket of lower clouds, still in the low VFR range, is dropping southeast out of far SE KS/SW MO into far NE OK/NW AR this evening. /Issued 302 PM CST Fri Nov 18 2016/ Cool/breezy conditions this afternoon behind cold front.
Strong mid level low pressure system spinning through eastern Minnesota this after, with pronounced trowal signature noted extending south through western Minnesota and northwest Iowa seen on IR and Water Vapor imagery. Little additional accumulation is expected with this area of snow as temperatures were above freezing and a little insolation was working through the clouds. Will go ahead and cancel winter headlines in our north with afternoon grid package as falling snow will have stopped and above- freezing temperatures will tend to prevent widespread blowing snow.
1209 AM EST Sat Nov 19 2016 High pressure will remain in place through Saturday. Low pressure will approach from the Great Lakes region Saturday night and move over the area on Sunday.
921 PM MST Fri Nov 18 2016 Clear skies and cold temperatures expected overnight as high pressure builds in from the west. With relatively calm winds and fresh snow over the higher terrain, overnight low temperatures will bottom out around 5 to 10 degrees below average by Saturday morning. As mid to upper-level moisture rounds the ridge of high pressure, a few high clouds will work their way into the region on Saturday evening. Low temperatures Sunday morning will be notably warmer than Saturday as high clouds drift over eastern Utah and Western Colorado.
A FEW-BKN050 layer south of the TAF sites will erode by 06z or midnight CST leaving SKC tonight through Saturday night as airmass dries due to ridges at the surface and aloft building into South Central Texas. The cold front is nearing the southern extent of the County Warning Area as it continues its progression to the south. Lows in the Hill Country are expected to be at or below freezing for many locations. Middle 30s are expected for the I-35 corridor, but can't rule out some low-lying areas outside of the cities reaching the freezing mark.
350 AM EST Sat Nov 19 2016 A strong, dry cold front will cross the area this afternoon and evening.
The cooler weather will be the main story for the next couple of days. Combined with the cold airmass already in place, subfreezing temperatures are expected areawide.
WV imagery indicates an upper level trough of low pressure transitioning eastward across the Central Plains. Near the surface, a strong area of low pressure is moving east across Missouri, resulting in gusty north-northwest winds across western Kansas. The gradient will slowly relax after that time as upper level ridging starts to build in out west and the departing low shifts well to the east into the Ohio Valley. For tonight, light winds and clear sky will allow temperatures to fall to the lower to mid 30s across most areas.
Meanwhile, a strong cold front will move across the area today.
However also have another weak trough dropping southward through the state digging into the backside of the stronger system in place currently.
/issued 619 AM CDT Wed Apr 5 2017/ High pressure building behind a cold front that moved across the region overnight will allow for west to northwest winds to increase to around 15 to 20 knots with gusts between 25 to 30 knots this afternoon. The leading edge or surface cold front is punching into the heart of the ArkLaTex right now with NW 12G23KT as of this writing here in SHV.
A powerful storm system continues to slowly track east with the closed upper level low moving northeast out of southeast KS while a pivoting short wave spoke of energy was over east central KS at 4 AM. Finally, high pressure will build into central KS tonight with decreased winds. By Thursday morning, the main upper level low will be over the Great Lakes region with upper level riding moving east towards the central US.
A cold front will sweep across the area this morning with skies then rapidly clearing. /issued 523 AM CDT Wed Apr 5 2017/ Temperatures around the region are holding in the lower 70s ahead of the latest front that is expected through southeast Texas well before the noon hour and exiting south central Louisiana coast by the afternoon hours. Lafayette will be a bit warmer today than most locations as the front will take a bit longer to push through.
With continued cold air advection think that highs will remain a bit cooler than yesterday, although still near seasonal averages. With light winds from high pressure and clearing skies lows tonight will bottom out in the 20s.