Aikyam-Lab/Synoptic-Bench huggingface dataset:
307 PM EDT Sat Oct 8 2016 High pressure over Missouri will continue to build across the region tonight.
Surface warm front has likely stalled for today, and will begin to pivot back southward as colder air drains into the Missouri river valley this afternoon. Short term high resolution guidance supports lowering temperatures a few degrees, especially along and north of Interstate 90, as a cooler easterly wind prevails. Weak warm frontal boundary along the Missouri River Valley this morning will lift north towards the I-90 corridor. Given temperatures will be marginal and temperatures will be cooler this morning, will hold off on a second period headline for now. With warming thermal profiles, highs will range from the lower 60s through east central SD and southwestern MN to lower 70s over south central SD. Lows will only drop into the lower 50s across the area.
and Sunday The forecast area this weekend will be between a broad cold upper low extending from the northern Great Lakes into the eastern half of Canada, and high pressure over the Central to Southern Plains. Clouds may continue to linger over the northeast this evening with the departing upper trough, otherwise an upper ridge building in will decrease clouds tonight. Frost or freezing temperatures possible again tonight with the ridge passing over and a better chance for skies to clear along with lighter winds.
Cool and dry ridging will build down the east coast.
A ridge of high pressure will build into the region from the Great Lakes. The combination of the high to the north and Matthew to the northeast will result in a a cooler and drier air mass moving into the area.
Drier air and clearing skies across the area overnight will allow temperatures to drop into the lower 40's across the northern portions of our area and near 50 in the southern portions.
A surface boundary over eastern Colorado will remain nearly stationary and deepen overnight as an upper level trough, located over Baja California at 12z Saturday, approaches from the southwest. The chances for convection will continue through the day on Sunday given the moisture and lift ahead of an approaching upper level trough. With chance for convection and expected cloud cover through the day on Sunday will favor the cooler guidance and even trend towards undercutting these temperatures by a few degrees. For tonight the lows are expected to be around 10F warmer compared to earlier this morning given the increasing cloud cover and low level moisture return from the south southeasterly winds. Convection will improve early Sunday night and then spread from west to east as the main upper level trough crosses the Central High Plains.
High pressure will drift across the Upper Midwest. Winds will be light on Sunday and gradually turn around to the east and then southeast as high pressure shifts east over the Great Lakes Region. Temperatures will be a few degrees warmer than what they were today with weak warm air advection over the area.
As upper level troughing continues to lift across the eastern CONUS, upper-level subsidence continues to spread across the region this morning.
203 PM EDT Sat Oct 8 2016 A cold front will spread showers across NY and PA through this afternoon. Cooler weather will settle into the region for the beginning of the new week. Farther upstream, another line of showers just entering western NY along the actual cold front and that will move east into the area this afternoon. Though the high moisture levels are in place for beneficial rains, the cold front will push through the I-81 corridor this afternoon, bringing an end to the precipitation and closing the window of opportunity a little too early. Much cooler air will filter down from Canada beginning this evening.
At this point, the guidance must sense the collective tropical cyclone fatigue of Floridians as it has trended weaker with the last few runs in the mid-week solutions, but some extra rain chances are look a good bet no matter what comes of Matthew's classification status.
so most sites will bottom out in the low to mid 40s for lows this morning. High temperatures will be a few degrees warmer than yesterday along with full sun.
Weak moisture starved warm front over the area now will be pushed back south overnight as secondary cold front drops south out of Minnesota. resulting in colder overnight lows nearer the freezing mark north of Highway 18. Though overnight mins should be a few degrees warmer. the boundary will be near the I80 corridor by morning so south and along the boundary temperatures will remain appreciably warmer.
307 PM EDT Sat Oct 8 2016 A cold front will cross the area overnight.
153 PM EDT Sat Oct 8 2016 High pressure will push slowly east across the region through the first part of the upcoming week. Cold front has pushed off to the east.
A large continental region of high pressure over the central United States will build into the eastern Gulf of Mexico and across the Florida peninsula over the next several days.
A cold front stretched from the upper Saint Lawrence Valley to the central Gulf coast. The upper ridge moves into the central gulf of Mexico and builds northward. This high bridges the front which settles southward with the western end over the Gulf washing out. The approaching upper ridge and the high pressure bridging the weakening front will bring in more stable and much drier air. Upper ridge over the N Central Gulf Coast region slides east over the state then up the eastern seaboard Mon/Tue.
Early Sunday a weak upper trough will bring a chance for light rain to northwest Oklahoma. Some patchy frost is still expected across NW OK where dewpoints may try to drop a few more degrees under the aforementioned ridge so will keep the frost advisory in place.
A cold front was well to the west. from TX coastal waters to the lower Great Lakes while Hurricane Matthew was just off the SC coast. Atlantic high pressure ridged west.
553 PM CDT Sat Oct 8 2016 High pressure centered right over the Missouri Ozarks resulted in fabulous weather conditions today. This high will slowly slide southeast of the region tonight and Sunday resulting in a slow return to southerly winds. Lows tonight will dip into the lower to middle 40s, with upper 30s possible across the eastern Ozarks. Highs on Sunday will warm into the lower 70s.
152 PM MDT Sat Oct 8 2016 Latest upper air analysis shows a ridge building onto the plains and a trough moving onto the west coast. With a clear sky and temperatures falling into the lower 30s for East Central Colorado and Dundy county, expect to see some frost develop for that part of the county early this morning. Today/tonight temperatures will be warmer than yesterday as the ridge continues to build eastward. The increasing dew points tonight will help keep lows warmer as well.
Temperatures ranged from the lower 30s in the southwest to around 40 in portions of northwest Wisconsin. High temperatures will definitely be on the cool side, with highs ranging from the mid 40s to the lower 50s. We should see areas of frost early this morning, especially along and south of the Highway 2 corridor. It looks like we will see another night of frost and freeze conditions tonight, as temperatures fall into the lower 30s. Southerly winds will bring warmer air back into the Northland on Sunday.
Early morning surface analysis shows a cold front over deep south Texas, with high pressure building behind the front across south central Texas. Radar data does show some light showers developing across the Rio Grande plains and portions of the southern Edwards plateau behind the cold front. The latest VWP from the Laughlin radar shows an overrunning pattern in place with northerly winds in the lowest two gates with southeasterly flow just above in the 4k-6k range.
A dry cold front will continue to push through the region tonight ushering in a drier airmass along with cooler temperatures. Low temperatures are expected to drop into the upper 50s northwest zones to the lower to mid 60s southeast and along the coast.
Temperatures are running several degrees warmer this afternoon compared to yesterday afternoon and will top out around 90 degrees in many valley and foothill locations today.
318 PM EDT Sat Oct 8 2016 The latest surface map features Mathew hugging the Carolina coast, with high pressure currently centered across the Midwest, with surface ridging nosing in across the Ohio Valley. High pressure will continue to build in across the Great Lakes and Ohio Valley regions through Sunday night. This will allow for cooler and drier conditions across eastern Kentucky. Lows will range from the low to mid 40s.
With clear skies, light northeast winds and the lower dewpoints, expect overnight lows in the upper 40s to mid 50s across the forecast area.
229 PM EDT Sat Oct 8 2016 High pressure will move east today. A cold front will slowly approach later today, and slowly pass through tonight through Sunday night.
1103 AM MDT Sat Oct 8 2016 Upper level analysis has ridging over the western CONUS with trof across the Great Lakes area. At the surface, high pressure resides across south central Canada with a weak lee trof across central Montana into eastern Wyoming. Upper ridge will build over the central CONUS as weak frontal boundary/lee trof shifts slightly northeastward across western SD, allowing warmer air to move into the area. Southerly winds will increase ahead of an approaching trough Saturday night, keeping lows mainly in the 40s.
1239 PM CDT SAT OCT 8 2016 The region will be under the influence of NW flow aloft on the backside of the trof today. 2% The expansive high pressure system will continue to dominate the region tonight. Upstream readings within the ridge across KS suggest lows in the 40s, and I wouldn't be surprised to see a few spots in the Ozarks bottom out in the upper 30s. The high pressure system will then begin a slow retreat starting on Sunday and continuing into the early week.
Expect VFR conditions through the period with high pressure building over the region.
135 PM EDT Sat Oct 8 2016 High pressure will build in from the west yielding a cloud free atmosphere.
Areas near the Black Mesa and Chuska Mountains will have the highest chances for Sunday afternoon thunderstorm activity.
/issued 1003 AM CDT Sat Oct 8 2016/ Post frontal conditions continue to dominate our region this morning with cooler temperatures and drier dewpoints.
The surface and upper level high pressure will quickly slide east today and tonight, resulting in mostly surface east winds tonight. This trough should bring lift and a chance of showers and thunderstorms to Far West Texas and the South Plains after midnight tonight through Sunday.
135 PM EDT Sat Oct 8 2016 Cooler and drier air will prevail this weekend. Skies will remain clear through the weekend as high pressure builds into the area. Much cooler and drier air was spreading across the area behind a cold front early this morning. Temperatures by daybreak will drop into the lower to mid 40s, the coolest over most areas since mid May. The cool airmass will remain over the area through Sunday night with lows dipping into the upper 30s over some of the locally colder spots early Sunday; otherwise, low temperatures will be in the lower to mid 40s this upcoming night. Otherwise, skies should be clear to mostly clear through Sunday night as the ridge of high pressure remain over the area with deep layer subsidence.
420 PM CDT Sat Oct 8 2016 A warm front has stalled across the far southeastern CWA this morning, bringing warm temperatures in the 70s to portions of eastern Nebraska and northwestern Iowa. Further north however, temperatures nearly 20 degrees colder were found along the highway 14 corridor. High pressure will drift into the western Great Lakes overnight, with winds turning light over the Buffalo ridge area.
600 PM CDT Sat Oct 8 2016 A warm front has stalled across the far southeastern CWA this morning, bringing warm temperatures in the 70s to portions of eastern Nebraska and northwestern Iowa. Further north however, temperatures nearly 20 degrees colder were found along the highway 14 corridor. High pressure will drift into the western Great Lakes overnight, with winds turning light over the Buffalo ridge area.
1250 PM CDT Sat Oct 8 2016 249 AM CDT Quiet fall weather is on tap for the weekend with a notably cooler and drier air mass in place. Early this morning, high pressure is centered across the mid Missouri Valley with ridging extending into the Great Lakes. Surface dew point depressions of 20 to 25 degrees and strong subsidence through the column with mid/upper level ridging building across the upper Midwest will result in sunny skies through the day. Expect afternoon highs in the low 60s north to mid 60s south. Another cool and clear night is expected tonight with temperatures outside the urban heat islands falling into the low to mid 40s. A few of the low lying spots west of the Fox River Valley could drop into the 30s.
With a slowly moderating airmass, low temperatures will be a few degrees warmer than lows this morning.
High pressure will build again Saturday night, so should see another good setup for radiational cooling similar to tonight, only this time the coolest temperatures will be east of I-35. This will generate a light southerly flow on the backside of the high and a slight warming trend to close out the weekend.
Today Through Sunday Night A big area of high pressure will build from the upper Midwest to the Ohio Valley in the near term. Clockwise flow around the high will provide breezy north to northeast winds today, especially over the eastern half of Arkansas. It will be cooler than in recent days.
243 PM CDT SAT OCT 8 2016 Main weather concern is the potential of another night of near freezing temperatures. There were many areas that had frost this morning, especially across west central Minnesota where temperatures fell to near, or below freezing for several hours. Therefore, will continue to headline these areas for tonight as temperatures fall into the low to mid 30s. Frost/freezing temperatures and timing of cold fronts will be the main concern in the longer term.
An upper level longwave trough passing over the Great Lakes will usher in cooler and drier air behind an advancing cold front this evening. Overnight lows tonight will range from the low to mid 50's inland to around 60 near the coast. Pleasant weather sets in Sunday, with sunny skies and afternoon highs ranging from the low to mid 80's across the area.
A longwave mid/upper level trof advances east across the Great Lakes area today and tonight. with a mid/upper level ridge building over the central Gulf coast. Hurricane Matthew advances northeastward just offshore off the SC/NC coasts and a cold front moves southeast across our area with high pressure building in its wake. with no rain expected (as the front will move through with no associated precipitation - mainly just a surge of cooler and drier air). Highs today ranging from the mid 80s northwestern counties to the lower 90s over portions of the southeastern counties. Lows tonight will be much cooler than past several nights. ranging from the low to mid 50s over interior locations to the lower 60s along the coast.
106 PM EDT Sat Oct 8 2016 A cold front will move east of the area today.
We will keep a west to east gradient across our region on Sunday as well with daytime highs near observed highs today or a degree or two warmer.
High pressure over the area was bringing clear skies, light winds and very cool temperatures. Today: Sunny skies and rather light west winds expected as high pressure slips off to the southeast during the day. A weak cold front will drop southward into our northern cwa but it will be marked by only a wind shift from the north or northeast. Another Canadian high pressure system builds into the area after midnight. high pressure will begin to slide east of the forecast area with near seasonal highs in the mid 60s to low 70s.
233 PM MDT Sat Oct 8 2016 Dry and mildly subsident west-southwest flow curving rounding the top of an upper ridge now over the state. Weak forcing aloft coupled with daytime heating may be sufficient to warrant the mention of isolated t-storms mainly over the higher terrain across the southwest corner of the CWA tomorrow afternoon. Southerly winds on the plains will also contribute to warmer temps.
330 PM CDT SAT OCT 8 2016 A bubble of high pressure centered over Missouri has been cut off from its larger parent high which is centered over southern Canada. This yielded temperatures in the low to mid 40s except in the heat island of St. MOS highs in the low to mid 70s look reasonable with the aforementioned west-southwest flow, so have followed it closely.
1203 PM CDT SAT OCT 8 2016 High pressure axis extending over central Illinois is keeping skies clear this morning. A 1027 mb high pressure center over eastern KS will drift slowly eastward over the next day bringing increasingly light winds and clear skies to central and southeast Illinois.
1130 AM MDT Sat Oct 8 2016 Water vapor loop showed a split flow aloft with fast westerlies along the northern tier CONUS and subtropical moisture spreading into the southwest CONUS ahead of a upper trough. Temperatures ranged from the low-mid 30s with patchy frost along the North Platte River valley of western Nebraska to the 40s elsewhere. Low amplitude upper ridge will maintain near zonal flow with mostly clear skies through the weekend.
354 PM MDT Sat Oct 8 2016 High clouds continue to stream in from the south thanks to a weak wave to our west and high pressure over Texas. By tomorrow, the trough axis will finally move overhead. The trough will bring some mid-level instability along with weak lift which will allow some showers and a few storms to form. The NAM and GFS both paint the highest terrain from I-70 south, with the San Juans heavily favored, for any precipitation.
Temperatures are in the lower 70s to the north, with upper 70s to around 80 south.
The forecast uses the bias corrected RAP and LAV data which was cooler than the MET MAV EKDMOS and ECS guidance across northern Neb. Low pressure will deepen across the Nrn High Plains tonight producing south winds across Wrn and North Central Neb. There remains a disorganized area of low pressure that moves from the southern Rockies out onto the southern Plains.
The work week begins with the area in a southwest flow pattern with an upper trough digging into the Pacific Northwest.
The 08z surface analysis notes a weak warm front from northeast WY low pressure across SD and NE into IA roughly along a Denison, Newton, Iowa City line. The front should lift slowly northward, reaching the Highway 20 or 30 corridors by 00z.
242 PM CDT Sat Oct 8 2016 High pressure centered in eastern Missouri with a ridge up along the Mississippi river is slowly dropping south today. This is allowing for nearly ideal afternoon weather conditions of sunshine, 5 to 15 mph winds, and mild temperatures in the lower to upper 60s. Another cool night is in store, with temperatures in the upper 30s in northern valleys, while temperatures only dip to the lower to mid 40s in cities and ridge tops. The same can be said for Sunday, with some spotty cumulus possible thinning to clear by afternoon, highs will once again reach the lower 60s north to upper 60s/lower 70s south with generally light winds. ERVIN The main chance of rain looks to be mid-week when a strong cold front moves through the Midwest.
A quiet and chilly night is underway early this morning, with 2 AM temperatures in the low to mid 40s under clear skies. Expansive high pressure will remain in control across the region into the middle of the week, with highs in the 70s and lows in the upper 40s and low 50s.
233 PM MDT Sat Oct 8 2016 Upper level analysis shows low-amplitude ridge over the northwestern CONUS. At the surface, the stationary boundary continues to stretch across the CWA, with high pressure to the north. Winds will increase from the south tonight, as high pressure slides to the east. Dry weather will continue as upper ridge axis passes over the northern plains Sunday. Flow will become southwesterly, and warmer air will advect into the region. Tight pressure gradient between exiting high and approaching low pressures will result in gusty southerly winds across central SD in the afternoon.
Upper air analysis this morning showed a weak ridge building over Texas. At the surface, high pressure was settling in and winds were from the northeast. The upper level ridge will strengthen tonight and then begin to move to the east. The low level flow will continue to be from the northeast to east bringing drier air to the region.
Skies should clear by early Sunday morning as high pressure builds in. High pressure remains in control through the day providing mostly sunny skies. Look for high temperatures to range from the mid 50s across northern Wisconsin to the lower 60s over northeast Iowa.
We will see an area of high pressure nose out of Canada behind this system with favorable radiational conditions mainly in the northeast tonight.
The hurricane will move away from the forecast area later today and tonight, with high pressure to begin building in thereafter. Cooler and drier air is already beginning to filter into the region from the southwest as Matthew draws closer to the Cape Fear.
A brief brush with MVFR at KLBB and KPVW is possible with the lower cloud heights pushing in from the south and west today, but overnight, a chance of showers at both terminals may bring conditions below VFR. These clouds should generally be at VFR levels, and while a rogue MVFR cig can't be completely ruled out, the lowest clouds should remain south and west of the terminals today. Aloft areas of high clouds were spilling in from the southwest downstream of troughing and a few distinct areas of lift noted in water vapor imagery. Filtered sunshine should yield decent warming which will allow highs to climb into the lower and middle 70s for most spots. The upper trough will swing across the area on Sunday, bringing mostly cloudy skies and a chance of mainly rain showers, with some isolated thunderstorms also possible.
The hurricane will move away from the forecast area later today and tonight, with high pressure to begin building in thereafter.
139 PM PDT SAT OCT 8 2016 Hot and dry inland through Sunday with a weak ridge of high pressure aloft.
Cooler overnight temperatures expected for much of the week while afternoon highs reach into the low 80s each day. For Sunday, dewpoints in the 30s coupled with warmer afternoon temps will produce minimum RHs near 20% for the entire region.
/issued 1011 AM CDT SAT OCT 8 2016/ A cold front has moved into the coastal waters this morning. This will usher in cooler and drier air for the region through the weekend. Cold front has moved across terminals and high pressure from the Plains will continue to build into the region through the forecast period. /issued 256 AM CDT SAT OCT 8 2016/ Cold front has moved through the area this morning with the exception of lower Acadiana. It will be slightly cooler today in the wake of the front with a little increase in winds and dry air.
A weak area of low pressure slowly lifting up through Arizona will bring scattered showers and a few thunderstorms over Mohave County through Sunday.
Visible satellite imagery shows a few high clouds drifting towards the region from the west as upper level moisture moves across mid-level ridging centered over South Central Texas. Afternoon relative humidity values look to fall to near 20 percent on Sunday in many locations north of Highway 59 as a result, but a weak surface pressure gradient as high pressure builds in will promote light enough winds (generally less than 10 MPH) to limit hazardous fire weather conditions. Dry conditions are expected across the region again overnight, with overnight lows ranging from the low 50s over the northeastern counties/Piney Woods region to mid/upper 60s along the coast.
356 PM CDT SAT OCT 8 2016 A cold front moved through southeast Texas and southern Louisiana this morning. As a result temperatures are running about 5 to 8 degrees cooler than yesterday with dew points around 60 degrees. Looking for temps to rebound into the lower 80s tomorrow under clear skies.