Aikyam-Lab/Synoptic-Bench huggingface dataset:
As of 09Z Sunday morning, an amplified midlevel pattern was present across the CONUS with troughing in the east and ridging across the west. A cutoff low was also present within the ridge axis off the southern CA coast. At the surface, a ridge axis extends from the TX Panhandle through western ND. Temperatures have remained a few degrees warmer than previously forecast, with current temperatures largely in the 40s across the area.
625 AM EST Sun Nov 1 2020 A strong cold front will cross Central Pennsylvania during the early to mid afternoon hours accompanied by gusty rain showers and falling temperatures in the mid to late afternoon.
Around mid morning, reinforcing cold front will move through the area. An upper level trof that extends down from the northern tier of the nation into Texas will sweep through today bringing the region more dry cool/cold weather. Temperatures ahead of the front will climb into the lower 70s but will will begin to drop back in the afternoon hours as cold air advection becomes established.
A strong cold front will shift out of the area early today with strong Northwest wind increasing through the day. Despite the passing of a cold front, mostly clear skies will allow afternoon highs to warm into the mid 50s to mid 60s. Overnight, the same clear sky and dry airmass will allow temperatures to plummet to freezing or subfreezing levels across most of the Midsouth.
A cold front currently moving through central Illinois down into eastern Missouri will move through our area this morning. Winds will calm this evening as mixing ceases and high pressure builds in from the west. Monday looks like a beautiful fall day with plenty of sunshine and cool temperatures thanks to high pressure centered just west of the area. Expect more frost Monday night, but low temperatures will be about 5 degrees warmer than tonight, so the frost will not be as widespread.
Much cooler today under the influence of northwest flow and a departing upper longwave trough. Along and east of I-29, expect lows to fall near to below the freezing mark.
/Issued 251 AM CST Sun Nov 1 2020/ A cold front has moved through the vast majority of eastern Oklahoma and western Arkansas this morning.
For today, strong mixing under mostly sunny skies behind the surface cold front will result in gusty NNW surface winds as temperatures reach well into the 60s to near 70.
Temperatures are forecast to warm to a few degrees above average today as a ridge of high pressure strengthens over the Northern Rockies. Conditions on Monday will be quite similar to today, but fog may linger longer due to strengthened inversions, and high temperatures will be even warmer in much of the region.
Cirrus moving out ahead of the low will spread high clouds over the southern portion of the forecast area as the day progresses. Meanwhile, the ridge of high pressure over the West Coast shifts over the Rockies in response to a deep trough pushing eastward over the eastern Pacific. Warm air advection beneath the ridge will sustain warmer than normal afternoon highs across the region. Little changes tonight and Monday as the closed low lifts slowly northward along the southern coast of California.
334 AM CST Sun Nov 1 2020 Quiet weather is expected to persist through Monday afternoon as the region sits under northwest flow aloft behind the departing trough quickly moving over the Great Lakes.
A dry cold front is currently in the northwest portion of the CWA. The upper level trough helping things move along is very progressive. Models/ensembles have been very consistent on temperatures going below freezing tonight.
Strong high pressure will slowly phase eastward on Sunday, centered over central Kansas at noon, and over eastern Kansas by 6 pm.
The strong cold front that pushed through the area late last evening was stretched from lower Michigan across Indiana at 2 am.
343 AM MST Sun Nov 1 2020 Northwest flow aloft will gradually weaken today and tonight as the upper ridge axis builds east into Colorado. Warm advection resumes today and with some lee troughing and westerly flow just off the deck, we'll continue to trend upward with our high temperature forecast. Mountain valley inversions are probably a little stronger this morning, so have tempered the high temps back a couple degrees in Middle Park. Tonight will feature diminishing mountain winds as the upper level ridge builds into the area and flow aloft weakens. A ridge axis will move over Colorado on Monday with light southwesterly winds at the surface. Highs will be mild and will reach the low 70s across the majority of the plains.
The cold front is on schedule and knocking door in SE OK and NE TX. High pressure will be arriving for most of this short term period. Speeds look to keep below Lake wind criteria, but gusts in the lower 20 mph will be common for many of us by around lunchtime today.
314 AM CST Sun Nov 1 2020 Strong north-northwesterly low-level flow will continue to advect a cold and very dry airmass into the region today behind the cold front. An upper-level trough will begin to shift eastward over the Northeast Sunday night into Monday with a ridge moving into the Central Plains in its wake.
/issued 256 AM CST Sun Nov 1 2020/ A broad upper level ridging pattern has filled in behind a weak cold front that pushed south through our FA yesterday.
A cold front will pass through the area this morning, shifting winds out of the north. An upper trough will send a cold front across the area later this morning. This dry front will bring a cooler and drier airmass. Highs for today will reach the mid to upper 70s before the cooler air has a chance to filter through. Monday's highs will be a few degrees cooler behind today's front with highs in the upper 60s and low 70s. Skies will remain mostly clear through the short term as high pressure dominates.
Today Through Monday Night Early this morning, a cold front was pushing through Arkansas from the Plains. A large area of high pressure will follow the front tonight, and winds will diminish. Given a clear sky and dewpoints mostly in the 20s, at or slighly below freezing temperatures are expected in roughly in the northern half of the state. High pressure will begin exiting as the period ends, with a ridge to the west shifting over the region.
525 AM CST Sun Nov 1 2020 Strong north-northwesterly low-level flow will continue to advect a cold and very dry airmass into the region today behind the cold front. An upper-level trough will begin to shift eastward over the Northeast Sunday night into Monday with a ridge moving into the Central Plains in its wake.
Much colder air will move in behind a cold front today. High pressure will build in tonight and then persist across the area through the week providing dry conditions. Early this morning, a cold front was about to enter the northwest forecast area. Forcing from the surface front along with an upper trough and the left exit region of an upper jet will continue to act on the limited moisture across the area in the early morning hours. A strong pressure gradient will exist in between the cold front and high pressure to the west, leading to a breezy day. Temperatures will struggle today after the initial fall behind the cold front thanks to strong cold advection.
528 AM CST Sun Nov 1 2020 (Today and tonight) A cold front is currently working its way southward across West Central Texas early this morning.
Winds out of the north/northeast are expected to increase to light to moderate later today as a cold front pushes through this afternoon, but will subside by tonight. High pressure will push into the region at the surface level this morning. Winds will be from the north and will gradually increase to light to moderate flow as a cold front approaches the area this afternoon. With the cold front not arriving until later in the afternoon, temperatures inland will warm to the low 80s while areas along the coast and Victoria Crossroads will warm to the upper 70s. High pressure and cold air behind the front will keep lows across the area in the mid 40s to mid 50s tonight which is well below the seasonal normal. Monday will be cooler with highs in the 70s and mostly clear skies.
(Today and tonight) A cold front is currently working its way southward across West Central Texas early this morning.
A dry cold front was working through the area early this morning. Plenty of sunshine will battle cold air advection at 850mb therefore temperatures will likely only warm into the lower to middle 50s today. Winds will pick up out of the northwest with gusts around 30mph likely from morning into the afternoon before diminishing tonight as high pressure builds in. As usual, models are a little too moist with dewpoints behind the departing high pressure, therefore we used a CONSMOS/ARW blend which brings afternoon humidity values into the upper 20s to around 30.
An upper level trof that extends down from the northern tier of the nation into Texas will sweep through today bringing the region more dry cool/cold weather. Temperatures ahead of the front will climb into the lower 70s but will will begin to drop back in the afternoon hours as cold air advection becomes established.
Patchy fog this morning might take a little bit longer to mix out given the slightly slower arrival of this next (weak) cold front.
333 AM CST Sun Nov 1 2020 A Canadian cold front pushes through the forecast area today with origins from the upper Rockies. This will instill cooler and drier air into the region that will allow for some of the lower temperatures experienced thusfar this young autumn season. Monday night lows may actually dip into the upper 30s in the more interior locations, but generally in the lower 40s for most areas not influenced by warmer marine temperatures. It remains uncertain if this is a re-emergence of Eta or an entirely new spawned low pressure area in the wake. VFR conditions expected with dry cold frontal passage moving through. Cold front with pronounced cold air advection to move off the coast today, causing northerly winds to increase later this afternoon through the overnight hours.
323 AM CST Sun Nov 1 2020 As of 09Z Sunday morning, an amplified midlevel pattern was present across the CONUS with troughing in the east and ridging across the west. A cutoff low was also present within the ridge axis off the southern CA coast. At the surface, a ridge axis extends from the TX Panhandle through western ND. Temperatures have remained a few degrees warmer than previously forecast, with current temperatures largely in the 40s across the area.
NNW surface winds will pick up and become gusty later this morning and afternoon in strong mixing behind a dry cold frontal passage. For today, strong mixing under mostly sunny skies behind the surface cold front will result in gusty NNW surface winds as temperatures reach well into the 60s to near 70.
454 AM CST Sun Nov 1 2020 (Today and tonight) Slightly cooler today in the wake of weak cold front that is now exiting southern portions of our CWA.
Ridging over the West Coast will continue to dominate the upper level pattern and essentially maintain the status quo across northwest California for another couple of days. In other words, expect mostly sunny skies to continue through Monday with seasonably mild conditions at the coast and warmer afternoons across the interior. Winds will generally remain light and terrain driven for the next few days, although the air mass will also remain dry enough to support locally critical fire weather conditions on some of the gustier ridges.
With the clear skies and decreasing winds temps have falling to the lower teens at some locations. Rest of today-Monday: Upper ridge builds east into the Northern Plains and a dry/stable air mass will support dry conditions and much quieter weather. Cooler post frontal air mass is still in place today, so we have one more day of below average temperatures (30s and 40s) before the advertised warm-up starts Monday. As the upper level flow turns more zonal,and 850mb temperatures continue to rise into the teens, expect a quiet and warmer week ahead for the work week.
(Today and tonight) Slightly cooler today in the wake of weak cold front that is now exiting southern portions of our CWA.
223 AM MST Sun Nov 1 2020 Warmer than average temperatures and dry conditions continue. The upper ridge over the western U.
Elevated northeasterly winds have developed at MAF, HOB, and INK this morning behind a weak cold front. /issued 227 AM CST Sun Nov 1 2020/ A cold front continues to push through the area this morning with temperatures falling slowly behind it. The High Wind Warning will continue until lunch time. Upper ridging will build over the area Monday into much of the week ahead bringing back above normal temperatures.
High pressure will push into the region at the surface level this morning. Winds will be from the north and will gradually increase to light to moderate flow as a cold front approaches the area this afternoon. With the cold front not arriving until later in the afternoon, temperatures inland will warm to the low 80s while areas along the coast and Victoria Crossroads will warm to the upper 70s. High pressure and cold air behind the front will keep lows across the area in the mid 40s to mid 50s tonight which is well below the seasonal normal. Monday will be cooler with highs in the 70s and mostly clear skies.
The long- advertised first strong cold front of the season is still expected to blast through the Florida Keys beginning early Monday morning. In its wake, sprawling high pressure will spread down the spine of the Florida peninsula.
248 AM MST Sun Nov 1 2020 Upper northwest flow is expected across the CWA for today as upper ridging begins to amplify across the western U. As upper ridging shifts further east and extends into Canada, look for large scale subsidence to take hold across the northern High Plains. The ridge pattern will begin to break down by the end of the week for a drop in temperatures, and ensembles point to a Pacific trough deepening to kick of the weekend.
321 AM CST Sun Nov 1 2020 (Issued 330 AM CST Sun Nov 1 2020) Today through Monday: Today will start with very breezy northwest winds mainly as a result of a tight pressure gradient on the back half of this system as a result of the leaving low pressure system and high pressure in the Central Plains in addition to a strong LLJ. Although temperatures will be in the low to mid 30s mostly, the winds will make it feel like low to mid 20s throughout the day. We will also see high pressure track southeast to the south of the CWA, which will keep our skies clear and turn our winds back to the southwest.
452 AM MST Sun Nov 1 2020 Warmer than average temperatures and dry conditions continue. The upper ridge over the western U.
603 AM CST Sun Nov 1 2020 Early morning analysis showed the cold front that passed through last evening sitting basically along the length of Lake Michigan to Chicago and southwestward into western Illinois. Otherwise, with the strong northwest winds will come much cooler air, as highs struggle to get out of the 30s today, with lows in the upper teens to mid 20s tonight. Said ridging will also keep us dry through the time period.
However, temperatures haven't really shown the effects from the front thus far with mostly upper 60s and lower 70s this afternoon which is a bit warmer than expected. The cold air advection behind the front will be more evident as well with temperatures on Monday as we should see highs average some 10 degrees cooler than today, generally ranging from the lower to mid 60s with full sunshine.
1152 AM CST Sun Nov 1 2020 Early morning analysis showed the cold front that passed through last evening sitting basically along the length of Lake Michigan to Chicago and southwestward into western Illinois. Otherwise, with the strong northwest winds will come much cooler air, as highs struggle to get out of the 30s today, with lows in the upper teens to mid 20s tonight. Said ridging will also keep us dry through the time period.
This is trying to eek in some warmer temperatures out of the High Plains, although today's temps will remain on the chilly side in the 30s and 40s, coolest near central MN. This trough will serve nothing more than to speed up a warm and dry air mass over the region as noted by an advertised LLJ promoting warming temps aloft. With the overall calm winds and dry air mass, temps may dip into the low 20s within interior Minnesota. Dry and relatively warm air mass overhead sits underneath ridging aloft.
1122 AM CST Sun Nov 1 2020 Strong north-northwesterly low-level flow will continue to advect a cold and very dry airmass into the region today behind the cold front. An upper-level trough will begin to shift eastward over the Northeast Sunday night into Monday with a ridge moving into the Central Plains in its wake.
1030 AM CST Sun Nov 1 2020 As of 16Z/10 AM CST, the cold front is moving across the HUN CWFA (though the exact position is a little murky). Morning cloud cover has mostly cleared up with the frontal passage, though there are still broken cumulus over the higher elevations of NE AL. In wake of the aforementioned cold front, a cold and dry airmass advects in from the northwest. Low temps overnight bottom out around or just below freezing and as a result, have upgraded the freeze watch to a warning with the latest forecast package for all of our counties.
Northwest flow continues aloft with a ridge over the eastern Pacific. Lows tonight will range from the low to mid 30s.
Even though skies will be sunny on Monday, Highs will struggle to reach the low 50s.
251 PM EST Sun Nov 1 2020 Cool and dry Canadian high pressure will affect the region late tonight through the mid week period.
Upper level ridge of high pressure over the region keeping skies clear over most of the PNW region, while temperature inversion over the valleys and basin still in place this morning. Across the lower elevations in central OR, temperatures will warm into the mid 60s to lower 70s, while the Columbia Basin and Gorge will struggle to warm into the upper 50s to lower 60s this afternoon.
Northerly winds and mostly clear skies are expected to continue through this afternoon across the CWA as high pressure moves into the region. Breezy low level northerly flow continued across Eastern Oklahoma and Northwest Arkansas at mid morning in the wake of the dry cold front that moved through last night. mostly sunny skies are expected over the CWA while high pressure continues to slide across the region. this should limit the wind gust time frame with decreasing winds during the afternoon hours from north to south under high pressure. Also ahead of the approaching center of high pressure. while near the Kansas and Missouri borders temps were in the lower 50s underneath the stronger cold advection.
1130 AM CST Sun Nov 1 2020 A dry cold front was working through the area early this morning. Plenty of sunshine will battle cold air advection at 850mb therefore temperatures will likely only warm into the lower to middle 50s today. Winds will pick up out of the northwest with gusts around 30mph likely from morning into the afternoon before diminishing tonight as high pressure builds in. As usual, models are a little too moist with dewpoints behind the departing high pressure, therefore we used a CONSMOS/ARW blend which brings afternoon humidity values into the upper 20s to around 30.
157 PM CST Sun Nov 1 2020 Latest surface analysis is showing that the surface front has moved well south of the area at the same time that high pressure was centered over eastern Kansas. Northwest winds are gusting into the 25-35 mph range between the high and the deep low over southeast Canada. These winds will diminish this evening as the HREF shows the high moving southeast across southern Missouri into the lower Mississippi Valley tonight into Monday. Dry weather is expected through Monday night as heights build over the region behind the exiting upper low and a ridge building in from the West Coast. Highs on Monday will moderate into the 50s as winds turn out of southwest on the backside of the high.
Upper level ridging will move overhead tonight and tomorrow. Surface ridging will continue to slide southward across the lower Mississippi River valley. Surface lee troughing will develop to the west of the region on Monday swinging winds around to the south-southwest. A upper-level ridge over the southern Plains, a closed upper-level low off of the southwestern coast of California and an upper-level trough over Alaska. The upper-level ridge over the southern Plains will dominate the pattern through the first half of the week, allowing for fair weather and a gradual increase in temperatures.
1202 PM CST Sun Nov 1 2020 For the 01/18Z TAF period, some very thin cirrus will continue to shift south of I-20 behind a reinforcing cold front. /issued 1106 AM CST Sun Nov 1 2020/ A reinforcing cold front continues its march through the southern parts of the region with even drier air spilling south behind the front. The cold front is on schedule and knocking door in SE OK and NE TX. High pressure will be arriving for most of this short term period. Speeds look to keep below Lake wind criteria, but gusts in the lower 20 mph will be common for many of us by around lunchtime today.
An upper level ridge will build across the region on Monday night. This ridge will then flatten out during the mid-week and then build again for the end of this week as a longwave trough amplifies across the western CONUS. This ridge will provide a dry and unseasonably warm week for the area.
234 PM CST Sun Nov 1 2020 18Z surface data has high pressure over the Plains with a developing low in southwest Colorado. Tonight Dry and chilly conditions will be seen across the area as high pressure moves through the Midwest.
SHORT TERM (Now through Monday Night): Winds are increasing across the area in the wake of a cold front. High pressure will then settle in across the region maintaining clear skies and cooler temperatures through Monday night.
If you're noticing that northwesterly breeze this morning, then you know that cold front has let itself into Middle Tennessee. In fact, most locations are nearing their High Temperature as we speak before cooler and drier ushers in from the northwest this afternoon. A cold front moved through the area this morning, and gusty NW winds have followed.
Much colder air will move in behind a cold front today. High pressure will build in tonight and then persist across the area through the week providing dry conditions. Southernmost counties may stay mostly sunny through the day, but elsewhere expect an increase in clouds over the next few hours due to a small lobe of vorticity moving southeast through the main trough.
Light winds this evening will increase from the south Monday morning west of the ridge.
1043 AM CST Sun Nov 1 2020 Winds have already become northerly ahead of the main cold front which is currently moving through the area. VFR conditions will also prevail with only a few passing high clouds expected through the valid TAF period as the low-levels of the atmosphere remain quite dry. An upper trough will send a cold front across the area later this morning. This dry front will bring a cooler and drier airmass. Highs for today will reach the mid to upper 70s before the cooler air has a chance to filter through. Monday's highs will be a few degrees cooler behind today's front with highs in the upper 60s and low 70s. Skies will remain mostly clear through the short term as high pressure dominates.
Mid morning surface analysis had the dry cold front just northwest of a line from Greenwood Mississippi to Bastrop Louisiana. The cold front will continue moving south through the CWA this afternoon bringing a gusty north wind and a drier airmass. Temperatures will be cooler than normal with the exception of our southeast which is expected to top out near normal before fropa. For today, strong mixing under mostly sunny skies behind the surface cold front will result in gusty NNW surface winds as temperatures reach well into the 60s to near 70.