Aikyam-Lab/Synoptic-Bench huggingface dataset:
Then an upper level disturbance will result in the development of a mixture of rain, freezing rain, sleet or snow by 09Z across most of the TAF sites except for KJCT. /issued 411 AM CST Tue Dec 5 2017/ (Today and Tonight) A cold front was moving south through the Interstate 10 corridor at around 09Z. By tonight, models show an upper trough from the Northern Plains approaching our area, increasing large scale lift across much of the area. Some of this precipitation will be a mix of rain, freezing rain, snow or sleet mainly west of a line from Abilene to Eden to Junction. Lows tonight should fall into the lower 30s as wetbulb cooling takes place with surface dewpoints in the lower 20s.
203 PM EST Tue Dec 5 2017 Cold front exits early tonight.
1244 PM EST Tue Dec 5 2017 Strong cold front Tuesday.
A strong cold front was slicing across western Kentucky as of 08z, accompanied by a solid band of heavy rain showers and embedded thunder.
SHORT TERM (Tonight through Wednesday Night): A strong cold front is just north of the CWA this afternoon, anchored by a 1031 mb high over north Texas and Oklahoma. Overnight low temperatures will be in the 40s, and won't recover very much on Wednesday, as the connection to high pressure from the Pacific Northwest and the Canadian Rockies continues.
Issued by National Weather Service BINGHAMTON NY 308 PM EST Tue Dec 5 2017 A cold front will sweep across the area tonight. The weather will turn drastically colder as the overall pattern turns to a deep low over the eastern half of the Nation, with a ridge of high pressure over the West. Cold front over eastern Ohio will sweep through central Pennsylvania tonight ushering in some significantly colder air. Weak high pressure builds in for the middle to second half of the week, but heights will be falling aloft allowing weak disturbances to translate through western and central PA.
Strong high pressure centered to the west of Utah will maintain a stable northerly flow across the Great Basin through the end of the week. High pressure is strengthening over much of the western CONUS this morning, as the remnants of the storm that impacted the region the past couple days continues to exit to the south and east. A trough moving through the Great Plains is expected to clip Utah on Wednesday, with a low level cold front passing through the area.
1014 AM MST Tue Dec 5 2017 Upper level analysis has a large trof across the north central CONUS with large ridge off the West Coast. At the surface, low pressure is located over the Great Lakes region and high pressure remains across the Rockies. Strong northerly flow will persist through the week as the main upper trof sets up across the eastern CONUS, and a ridge builds over the west. Towards the end of the week, a gradual warming and drying trend is expected as the western upper ridge shifts eastward into the Great Basin area.
251 PM EST Tue Dec 5 2017 A cold front will move through the area tonight.
/Tonight through Monday/ Relatively quiet forecast for this period as ridge axis passes through the state. However coverage may be limited in some areas as a light west should sustain itself overnight given that the center of the high goes south of the state.
308 PM CDT Sun Oct 15 2017 Cold front continues exiting off to our east currently passing through the Ohio Valley, as low pressure deepens over Ontario. Some clearing though is beginning to make inroads into CWA from central IA ahead of high pressure. Overall, high pressure will be the dominant weather feature over the next 24 hrs providing diminishing winds along with drier and seasonably cool conditions. This cooler weather will be short-lived as the flow pattern aloft is shown to flatten allowing for a return to above normal temps as the week progresses. MVFR deck will lift to VFR from west to east by late afternoon with skies then clearing by this evening, as high pressure begins to build into the region.
1110 AM MDT Sun Oct 15 2017 Upper trough is moving out of the northern plains, while upper ridge builds over the west coast. Low-amplitude upper ridging will keep weather dry and mild through the week.
133 PM EDT Sun Oct 15 2017 High pressure will remain over the area today. A cold front will move through the region Monday evening.
414 PM CDT Sun Oct 15 2017 A weak trough of low pressure is near the MN/ND border early this afternoon. As this trough approaches there will be an increase in mid level and high level cloudiness. After that it is mostly clear and dry with warmer temperatures to start off the work week.
However, immediately along the front the profiles change slightly with cooling noted aloft and warmer temps, which would suggest that the better forcing along the front and limited instability (~500 J/kg) could be enough to support a few isolated thunderstorms. Winds begin to weak Monday night leaving a perfect setup for a radiational cooling event, with temps bottoming out in the lower 40s.
249 PM CDT Sun Oct 15 2017 Tonight and Monday: Latest RAP and satellite imagery showed a strong upper trough moving through the mid section of the CONUS. This was dragging a cold front toward the region from the northwest. Readings across the region were in the lower to middle 80s. A more seasonably cool airmass will infiltrate the region with lows in the upper 40s north to the lower 60s southeast. For Monday, sunny skies and cool below normal readings will be the general rule with highs from the upper 60s to the lower 70s.
Despite the sunshine breaking out this afternoon, the breezy winds will make it feel cooler. Small area of high pressure near Grand Forks at 08z. Calm wind and clear sky over the NE ND into far NW MN has allowed temps to drop into the lower 20s. Upper level northwesterly flow aloft through the first half of the week will allow for a short wave trough to pass through the region Monday. This will likely have weak associated surface features, so the passage of a dry, weak cold front/trough is possible.
233 PM EDT Sun Oct 15 2017 A strong cold front will bring showers and isolated thunderstorms this evening, followed by breezy, cooler weather to start the work week.
As high pressure builds over Texas tonight and tomorrow, much cooler and drier air will help produce temperatures well below seasonal normals. For tonight, surface winds from the north will continue to bring cooler air into West Central Texas. With skies clearing overnight, watch for chilly lows in the lower to mid 40s.
This includes the normally warmer SE zones, as these areas will hang onto calm winds the longest with the ridge axis nearby. A light SW breeze is expected after midnight on the back side of the ridge axis, which will add a slight warming downslope component, and should keep temperatures from falling to their full potential (dewpoints in the upper 20s). Sunny, breezy and warmer. Pleasant readings (near room temperature) in the lower 70s.
This low will continue to move west and into the eastern gulf of Mexico by this evening. This low has allow for some showers and a few thunderstorms to develop over the Lake Okeechobee region early this afternoon. As the low moves west, scattered showers and isolated thunderstorms should continue to develop over the western areas of South Florida. The eastern areas of South Florida should only see isolated showers through the afternoon hours, due to drier air from the area from high pressure over the Bahamas.
Building high pressure over the desert SW and a strong NW flow aloft is bringing the expected warmer temperatures and drier conditions to the region.
Forecast challenges in the short term will mainly be the low temperatures tonight and coverage of frost. Most locations in northeast Nebraska have experienced freezing temperatures and farther south, the frost has been hit or miss. The h85 thermal trough is over the Great Lakes and although there is weak warm air advection aloft.
With lows this morning reaching the lower to mid 30s in areas that cleared out, have heightened confidence of reaching the mid 30s tonight, as well, and will give a longer heads-up so that growers can take mitigating actions. Trough axis at 00Z was from Manitoba Canada southward into eastern CO. Those clouds will clear and northwest winds should decrease as the surface pressure gradient decreases and high pressure builds over KS. During the day Monday, high pressure moves off to the east and southerly winds increase. That will bring in noticeably warmer air, with highs mainly upper 60s and lower 70s.
On Monday the broad upper level ridge expands across central North America, and a surface warm front moves east across the Dakotas. Upper ridge over the western United States meanders towards the east bringing dry conditions and a warming trend this week with above average temperatures in the 60s and 70s.
s sunny with much lighter winds and cooler temperatures this morning. At 10 am, temperatures were 1 to 5 degrees cooler than 24 hours ago, except for the northern Sacramento Valley, where it's several degrees warmer, with north winds around 10 mph.
339 PM EDT Sun Oct 15 2017 A strong cold front will move across the area later tonight.
342 PM CDT Sun Oct 15 2017 The rumors are true - it's actually going to feel like fall for the next couple days! The cold front that will bring said fall weather currently stretches from the Great Lakes through the Ohio Valley into northwestern Louisiana and south central Texas.
153 PM EDT Sun Oct 15 2017 Ceilings are lowering across the TN Valley ahead of a cold front moving into the eastern valley tonight.
1205 PM CDT Sun Oct 15 2017 Update to allow the High Wind Warning and Wind Advisory to expire. The cold front has pushed well south of the rio Grande early this afternoon with the strongest surface pressure rises dropping southeast of the Lower trans Pecos. Northerly wind speeds are decreasing as a result, enough so to allow the High Wind Warning for Guadalupe Pass, and the Wind Advisory for southwest texas to expire.
101 PM CDT Sun Oct 15 2017 The cold front is passing through west central Illinois and central Missouri at this time. Model consensus has the cold front exiting our southeastern counties by 12Z and the last of the precipitation behind the front exiting by 15Z. There's a wide area of stratocu extending north into Iowa and Minnesota behind the cold front. Gusty northwest flow will bring much cooler air to the region and highs are only expected to hit the low 60s in most locations.
302 PM CDT Sun Oct 15 2017 Fall has returned to West Texas behind last night's cold front. Breezy northerly winds this morning were now on the decline and will more fully diminish this evening as surface ridging settles squarely over the South Plains. It appears temperatures roughly north and west of Lubbock should dip into the middle 30s, with a few low spots, especially over sandy soil, perhaps briefly dropping to around the freezing mark.
Skies will then clear once the wave departs, along with weakening winds, so temperatures will be a bit cooler overall compared to this morning. Overnight lows will range from the middle 20s to the lower 30s. Dry conditions and mostly sunny skies will then settle into the region to start the work week as high pressure builds across the southern Great Plains states, along with mid-level ridging. The southwesterly flow will also bring in warmer temperatures, with highs ranging from the middle 50s east to the lower 60s west.
A cold front has pushed out of the forecast area so temperatures have dropped some with current readings ranging from the upper 50s to upper 70s. As the cold front continues to push south into central Mississippi this evening rain will gradually move out of the forecast area tonight. With cooler and drier air moving into the region tonight, temperatures will be much lower than they have been the last few days with lows Monday morning in the 40s to around 50 degrees. High pressure will remain west of the region on Monday keeping things dry and cool.
1228 PM CDT Sun Oct 15 2017 Updated aviation section for 18z TAF issuance Cold front now seen from just northwest of PIA and STL to near SGF, taking aim on PAH FA. Cold front will enter northwest ptns FA by 12Z, accelerating across the Ohio river by 15Z, and departing east of the FA by 18Z.
301 PM EDT Sun Oct 15 2017 Weather to quiet down quickly this evening as any remaining scattered light showers will end with the passage of secondary cold front during the late afternoon hours. Much cooler airmass in behind the cold front(s) will allow minimum temperatures to dip into the upper 30s to lower 40s as surface ridging builds into the area, but some degree of cloud cover within unsettled northwest cyclonic flow and wind speeds at 5 mph or more much of the night should keep frost at bay with perhaps a few patchy here and there.
302 PM CDT Sun Oct 15 2017 An upper level ridge will remain over the western US through the next couple days. This will result in high pressure bringing dry and quiet weather across north central Nebraska. Clear skies overnight will allow temperatures for Sunday night to drop into the low 30s. The constants remain the warm dry ridge with Pacific air, that will dominate the northern and central plains through the week and the closed Gulf of Mexico through mid to late week. Upper ridge over the southern CONUS not as dominant as it had been in yesterdays runs of the extended and transitions from a northwest flow to a more zonal flow mid week.
Cold front continues to push south across the CWA as of writing and should be all the way through by late afternoon. Min temps tonight should be roughly 5 to 8 degrees cooler than this morning/s lows with wind speeds keeping temps somewhat elevated.
Analysis indicates weak high pressure has settled in over Florida and the Keys. The long wave pattern over the United States is becoming more pronounced with a vigorous upper low trekking eastward out of Canada, and across the Great Lakes Region today. This low will usher a front across the Central Plains and into the Deep South through Monday night.
146 PM CDT Sun Oct 15 2017 A cold front is making its way across Middle Tennessee this afternoon, with an initial thin line of heavy showers occurring along the front, and a band of lighter showers several miles behind the front. After that, the next chance of rain won't be until at least next Sunday with the next cold front. In between, look for significantly cooler temperatures advecting into Middle Tennessee, with lows in the 40's areawide by tomorrow morning.
348 PM EDT Sun Oct 15 2017 A strong cold front will bring showers and isolated thunderstorms this evening, followed by breezy, cooler weather to start the work week.
253 PM CDT Sun Oct 15 2017 Plenty of sunshine being noted as the cold front that brought last nights rain exits eastward and cold advection induced stratocumulus this in the mid afternoon sun.
317 PM EDT Sun Oct 15 2017 A broken line of showers well ahead of the approaching cold front is moving across the area. The shower chance will diminish quickly after the frontal passage and much cooler air will spread into the area. Initially there will be weak troughing in the east, and weak ridging over the southwest U. This will transition to a slightly wavy zonal flow, but by the end of the week as troughing develops in the west, upper ridging will build in the east.
157 PM EDT Sun Oct 15 2017 A cold front over the Great Lakes and Ohio Valley states approaches this afternoon and passes through late tonight.
208 PM MDT Sun Oct 15 2017 Ridging will build over the intermountain west through Monday with the main northern stream jet shifting north into Canada.
Noteworthy items include temperatures approaching freezing for our southwest Monday morning. High pressure will begin to build in over western parts of the CONUS while the upper level trough continues to push east.
218 PM EDT Sun Oct 15 2017 A cold front crosses through this evening. Much cooler tonight into midweek. High pressure with a warming trend for the latter half of the week. Cold front traverses forecast area this evening with line of convective showers. Temperatures will be noticeably cooler to start the work week as cold air advection continues for Monday. Much cooler temperatures will usher into the region behind the front for Monday, but no widepsread fog or frost/freeze expected in the short term period.
Low pressure will track east through southern Canada tonight driving a trailing cold front through the region.
353 PM CDT Sun Oct 15 2017 The cold front is still moving SE this afternoon with still the SE quarter or so of our area to work over. Dry weather will linger, but the models still eventually retrograde an upper low now out over the Gulf moving East by late week and then work inland around the upper ridge hanging over the SE U. /issued 1255 PM CDT Sun Oct 15 2017/ A cold front extends along a LLQ, to RSN, to just N of IER, to LFK and UTS line as of 1730Z. These cigs will clear the LFK/MLU terminals by 01-04Z, although areas of AC/cirrus will linger in wake of the lower cigs this afternoon/evening before thinning out late tonight.
327 PM CDT Sun Oct 15 2017 Another cool night with light northwest flow, and a weak ridge axis moving into the area that will allow winds to shift slightly to the southwest.
526 PM CDT Sun Oct 15 2017 An upper level ridge will remain over the western US through the next couple days. This will result in high pressure bringing dry and quiet weather across north central Nebraska. Clear skies overnight will allow temperatures for Sunday night to drop into the low 30s. The constants remain the warm dry ridge with Pacific air, that will dominate the northern and central plains through the week and the closed Gulf of Mexico through mid to late week. Upper ridge over the southern CONUS not as dominant as it had been in yesterdays runs of the extended and transitions from a northwest flow to a more zonal flow mid week.
A cold front will cross Indiana by evening. A high pressure system developing behind it should extend from Texas to the Ohio Valley by Monday, then show little change for several days.
Mostly VFR across the region currently, however isolated to scattered showers and storms can be expected as a cold front moves through.
240 PM EDT Sun Oct 15 2017 High pressure will shift offshore this afternoon. A cold front will cross the area late tonight through early Monday.
PRO's: * colder air in place: cold highs (mostly near 50) won't have far to go to drop into the low to mid 30s. After the passage of the upper level trough east this evening, both the GFS and EC have been insistent of moving to a zonal/ridging upper level flow pattern for the better part of the new week.
Once this system moves out of the area and winds die off in the evening, temperatures will fall to near the freezing mark and allow for frost to form. A very quiet pattern will persist across the country this week with an expansive mid level ridge stretching from coast to coast, keeping the storm track well to the north.
Inverted trough will shift west of Florida into tonight as a cold front moves into the Southeast United States.
Temperatures across the Lower Columbia Basin of Oregon and Washington, and the Northern Blue Mountain Foothills of Oregon have mostly risen above 32 degrees. The Pacific Northwest will be under a flat upper level ridge today and tonight. An upper level ridge is building over the area.
320 PM EDT Sun Oct 15 2017 High pressure will shift offshore this afternoon. A cold front will cross the area late tonight through early Monday.
1255 PM CDT Sun Oct 15 2017 A cold front has exited Arkansas to the southeast, with scattered showers lingering over southeast sections of the state. Forecast updates are with light convection moving through AR as the cold front and upper lift moves east. Also, temperatures will not warm much over northern AR, while tempered in central areas, as the cold front brings good cold air advection to AR on the northwest elevated winds. Hence, upper 50s to lower 60s north, 60s to lower 70s central, while daily highs over the south will be before the cold front cools temperatures down. Gusty NW winds behind the fnt wl bring much cooler and drier air into the state.
552 PM CDT Sun Oct 15 2017 Plenty of sunshine being noted as the cold front that brought last nights rain exits eastward and cold advection induced stratocumulus this in the mid afternoon sun.
Expect mild temperatures, at least for the season, until a cold front pushes by later this week a cools the area down a bit.
224 PM EDT Sun Oct 15 2017 A cold front will cross the area Monday bringing chances of showers and isolated thunderstorms to the area. Behind the cold front high pressure will usher in much cooler and drier air through the end of the week. Widespread stratus earlier this morning has been replaced with a developing cumulus field as temperatures rise into the lower to mid 80s. Some showers are developing in the NC mountains and over northern GA associated with warm advection isentropic lift ahead of the approaching cold front. A strong cold front will move through the region Monday, bringing rain to the area. Behind the front, high pressure will build into the forecast area along with much cooler and drier air.
High pressure ridging continues to build over the region with just some thin high clouds, warmer temperatures, and lighter winds.
310 PM CDT Sun Oct 15 2017 Tonight through Monday, an upper level trough across the upper Midwest, southward across the mid MS river valley will move into the eastern US by 00Z TUE. The center of a broad ridge of high pressure will move southeast across the CWA Tonight, then shift southeast across northern AR into north TX by Monday afternoon.
250 PM EDT Sun Oct 15 2017 Current surface analysis reveals a strong cold front oriented northeast to southwest across central Kentucky. KSDF even measured a 45mph gust a little after 230pm this afternoon as the cold front passed. Cold air will continue to pump in behind the cold front and drop overnight lows into the mid 40s. Monday will feel quite cool and dry compared to previous days, as afternoon highs barely top out in the low 60s for many locations, and dewpoints hang out in the upper 30s to low 40s. Winds should remain light out of the north around 5mph-10mph thanks to high pressure building in from the west.
640 PM EDT Sun Oct 15 2017 An easing of the low level cold air advection, weakening of the sfc gradient and nighttime boundary layer cooling will result in a steady decrease in wind speeds during the course of the evening. The low level flow is already veering toward the north-northwest. Weather to quiet down quickly this evening as any remaining scattered light showers will end with the passage of secondary cold front during the late afternoon hours. Much cooler airmass in behind the cold front(s) will allow minimum temperatures to dip into the upper 30s to lower 40s as surface ridging builds into the area, but some degree of cloud cover within unsettled northwest cyclonic flow and wind speeds at 5 mph or more much of the night should keep frost at bay with perhaps a few patchy here and there.
207 PM PDT Sun Oct 15 2017 A warming trend will start Monday as high pressure strengthens over the Sierra and western Nevada.
631 PM EDT Sun Oct 15 2017 Showers will end with passage of a cold front this evening. After a cool start to the week, building high pressure will result in dry and gradually warming weather. The cold front will complete passage over the entire Upper Ohio Region within a couple hours and end widespread showers. The upper trough and associated cold advection will maintain mostly cloudy conditions and northern zone shower chances for Monday. Broad high pressure will maintain dry conditions with gradual warming through the period. Low-end VFR, to MVFR stratocu will persist in the wake of this evenings cold front as cold advection intensifies off the Lake- Region. Building high pressure will diminish wind and return VFR as Monday aftn progresses. No widespread restrictions are expected under high pressure.