Aikyam-Lab/Synoptic-Bench huggingface dataset:
Mid evening surface analysis showed the dry cold front near a Columbus to Vicksburg line. The cold front will continue drifting through the CWA tonight an usher in a cooler and drier airmass by sunrise Tuesday. A cold front, and the clouds associated with it, will trek east into and through the forecast area this afternoon into tonight. Behind the front, winds will become northwesterly, allowing for some slightly cooler drier air to begin advecting into the region. This drier air will primarily result in cooler lows tonight, as they range from the lower 50s to middle 60s. Highs on Tuesday will be a little cooler also. However, with warmer temperatures aloft and good mixing during the day in this shallow cooler drier airmass, highs will still be a touch warm in some spots and range between the mid 70s and lower 80s.
In the upper levels, a broad trough is over the Central and Eastern U. A ridge is over the Gulf of Mexico. At the surface, a dry cold front is moving through the region today.
Dry and mild high pressure will dominate the short-term forecast. Temps this afternoon will be near climo or just on the lower end as we mix to about 900mb. The high center slips just far enough to our east this afternoon for light SW winds and dewpoints possibly mixing into the upper 30s.
1241 AM CDT Tue Oct 13 2020 Northerly winds behind a cold front have brought drier air to the region. The cold front has made its way through most of the area as of this writing and will continue to push south this afternoon. Slightly cooler temperatures have moved into the region, providing relief from the record breaking heat but still remaining slightly above normal for early October highs. Drier dewpoints at the surface will allow overnight lows to cool into the low 50s for parts of the Hill Country and northern extend of the I-35 corridor, with other areas seeing upper 50s to low 60s. Dry and benign weather pattern remains in place through Tuesday with slightly warmer than normal afternoon highs, clear skies, and light northeast winds slowly veering to southeast by Tuesday night.
247 AM CDT Tue Oct 13 2020 Cold front that crossed the mid-state last evening now just east of the Plateau, with its associated rain well east. That will end this episode of pcpn as SFC/LL high pressure builds in and northwest flow commences behind a passing upper wave. This cold front will also pack much cooler air. Cold front has pushed through middle TN taking the showers and clouds with it.
1115 PM CDT Mon Oct 12 2020 A cold front moved through the area yesterday bringing cooler, drier air to the region. A high pressure system traveling eastward along the TX and OK border redirects winds to be from the southwest pushing dry desert air from the SW US.
1107 PM EDT Mon Oct 12 2020 Low pressure will track up the Mid Atlantic coast tonight, then a cold front will push eastward across Pennsylvania Tuesday morning.
1154 PM CDT Mon Oct 12 2020 Cold front has cleared across entire airspace this evening. However, the low temperature forecast for tonight was left intact.
1114 PM EDT Mon Oct 12 2020 Low pressure will track up the Mid Atlantic coast tonight, then a cold front will push eastward across Pennsylvania Tuesday morning.
347 AM CDT Tue Oct 13 2020 As of early this morning, a cold front attached to a broad upper trough has cleared the CWFA, and a notable drop in temperatures and dewpoints can be seen by sfc obs. With high pressure and subsidence now building behind this front, expect a more typical fall day today, with temperatures only rising into the low to mid 70s across the area this afternoon. Enjoy! Northerly flow will continue advecting cooler temperatures into the area overnight, and under clear skies our temperatures will plummet into the middle to upper 40s across the area.
1257 AM EDT Tue Oct 13 2020 A line of showers and isolated thunderstorms will move through tonight with the passage of a fast moving cold front. Changes in timing and coverage of the rain showers situated right along an eastward moving cold front. Additionally, the upper level support, that earlier supported some robust convection, leading to strong wind gusts, is weakening as much of it is being used to break through the minor upper level ridging ahead of it. Have left in the mention of an isolated thunderstorm through 06z over portions of Ohio, but as the activity moves further east, the low- level easterly flow will work to siphon more dry air into the boundary. Showers should exit the eastern ridges right around dawn. Cooler air filtering behind the front will drop area temperature closer to seasonal norms.
406 AM EDT Tue Oct 13 2020 Showers will exit the ridges this morning. Any lingering showers over the higher elevation will exit quickly, clearing before 15z. Cooler air filtering behind the front will drop area temperature closer to seasonal norms.
1134 PM CDT Mon Oct 12 2020 Brisk and gusty northwest winds have persisted for much of the day behind a cold front that passed through the area during the early morning hours. A zonal flow aloft will persist into Tuesday with south to southwest surface winds increasing behind that departing ridge axis.
Issued by National Weather Service Tampa Bay Ruskin FL 1250 AM CDT Tue Oct 13 2020 Cold front will exit the region this morning with some areas of MVFR conditions possible until sunrise. /issued by National Weather Service Houston/Galveston TX/ A cold front has moved through Lufkin and is nearing Fort Polk at 3 pm and should continue to steadily push into the area though may slow somewhat as it moves through the Atchafalaya basin.
310 AM CDT Tue Oct 13 2020 An upper trough is over Canada and the Upper Midwest with westerly flow over southeast New Mexico and West Texas. This upper trough is expected to move to the east today with southerly winds returning to the area.
South to southwest winds will return on the backside of the high, but remain in the 10 to 15 mph range for the most part. Overnight lows will range form the mid 40s across the eastern Ozarks to the lower 50s in southwest Missouri and southeast Kansas.
313 AM CDT Tue Oct 13 2020 An upper trough is over Canada and the Upper Midwest with westerly flow over southeast New Mexico and West Texas. This upper trough is expected to move to the east today with southerly winds returning to the area.
1246 AM EDT Tue Oct 13 2020 Low pressure will track up the Mid Atlantic coast tonight, then a cold front will push eastward across Pennsylvania Tuesday morning.
Dry warm weather will continue the next several days under a persistent area of high pressure.
Cold front has pushed off the coast with drier air filtering into the area from the north.
2) Strong southwest winds of 35-40 mph will be possible tomorrow afternoon ahead of an approaching cold front.
Issued by National Weather Service Houston/Galveston TX 342 AM CDT Tue Oct 13 2020 The weak cold front that pushed into the area yesterday has meandered its way to the coast overnight.
1047 PM CDT Mon Oct 12 2020 Cooler temperatures in place this afternoon after what very well may be our last 80+ degree day for awhile yesterday. Even with the cooler temperatures, a dry airmass has allowed relative humidity values to slip to near or inside of critical values. First, winds above the surface will become quite gusty and if this higher momentum air can make it to the surface, may see a period of northwesterly winds gusting in excess of 25 mph.
If you have been fan of the mild fall weather, you should get out and enjoy the weather this afternoon, because a shift to a cooler pattern is on the way.
However, a massive ridge will build in the eastern Pac toward the end of the week and will dislodge a large pocket of arctic air south into the CONUS, supporting much colder temps with increasing chances for snow accums locally. The next impulse will push into the Pac NW and support short wave ridging over the Northern Plains today. Sfc cold front will cross the region Wed supporting a decent round of CAA and sfc pressure rises. Another impulse will bring more shower chances to the region Thur, with much cooler temps expected as well as continued breezy winds.
434 AM EDT Tue Oct 13 2020 Pleasant weather today with plenty of sun will be accompanied by slightly cooler temperatures than yesterday with highs close to 70.
219 AM EDT Tue Oct 13 2020 A stubborn moist air mass will persist across the southern middle Atlantic this morning, ahead of a cold front that will move east with following drier air this afternoon into early tonight.
400 AM CDT Tue Oct 13 2020 Breezy, seasonal weather lingers in place through mid-week, as High pressure dominates the weather across the Midwest.
1027 PM PDT Mon Oct 12 2020 Updated Aviation Discussion Overall, its relatively quiet tonight, in advance of next cold front/area of rain that will be moving across the area late tonight and on Tuesday. A strong cold front will impact TAF sites tomorrow morning, with rain beginning between 9Z and 10Z at sites DLS/YKM, then impacting other sites after 13Z.
Cooler, drier air is settling over the region. Temperatures this morning are 5-15 degrees cooler and dewpoints are 15-25 degrees cooler than 24 hours ago.
Dry and mild high pressure will dominate the short-term forecast. Temps this afternoon will be near climo or just on the lower end as we mix to about 900mb. The high center slips just far enough to our east this afternoon for light SW winds and dewpoints possibly mixing into the upper 30s. The continued light return flow tonight should keep any fog at bay, and Wednesday morning min temps will run a few degrees warmer than this morning. Return flow behind retreating high pressure will give us one more dry and warm day on Wednesday, before we switch into a substantially cooler pattern.
Area of high pressure off the West Coast beginning its amplification as the zonal flow pattern over the region begins it northward shift. Therefore, cooler conditions seen over the region due to the placement of the zonal flow are now being replaced with a warming trend. While overnight lows remain on the cooler side under clear and dry conditions, max temperatures have seen an upward trend of 4 to 6 degrees in the last 24 hours.
Cold front that crossed the mid-state last evening now just east of the Plateau, with its associated rain well east. That will end this episode of pcpn as SFC/LL high pressure builds in and northwest flow commences behind a passing upper wave. This cold front will also pack much cooler air. For CSV will include a tempo for an hour with MVFR CIGs for the lower clouds.
High pressure will remain firmly in place over the next couple days.
06Z surface data has high pressure from the Great Lakes into the southern Plains. The next cold front rain from northwest Minnesota into northwest Nebraska. Dew points were mainly in the 30s across the Midwest with some 40s in the northern Plains behind the cold front. Windy conditions are again expected today along with slightly cooler than normal temperatures. Warmer temperatures will be seen across the area on Wednesday ahead of the next cold front.
This AM, we have a cold front stretched across Central Alabama from southwest to northeast. Drier/ cooler air with northwest/north winds is rapidly moving in behind the front. Winds will taper off tonight with the ridging in place, and we will see temperatures some 6-13 degrees cooler tonight than this morning. Look for tranquil fall weather during the day on Wednesday with ridging, light winds, clear skies, and only slightly milder temperatures overall than today.
Expect warmer temperatures with highs this afternoon mainly 85 to 90.
The highest winds may move into these aforementioned TAF sites just after 12Z.
627 AM CDT Tue Oct 13 2020 High pressure will build over the region today bringing mostly sunny skies and diminishing sustained winds. Low pressure will move through the Dakotas late tonight through Wednesday. Inverted V soundings in the morning will help those winds mix down as the low moves east. An upper trough will dig into the northern plains on Wednesday bringing significantly cooler air with it as H85 temps fall 6C to 8C through the day. A strong mid-level ridge/block just off the west coast will allow for energy to dig southeast across the Western/Northern Plains during the period.
Having said that, did go just a degree or two above the cooler NBM guidance but not quite as high as the warmer MAVMOS output concerning afternoon high temperatures. This warming wind will allow for daytime highs to reach the 80s areawide with the warmer readings residing across our western half where the pressure gradient will be a little stronger.
Meanwhile, local radars are detecting scattered showers beyond 40 nm southeast of the Upper Keys, with only a few showers beyond 50 nm south of the Lower and Middle Keys.
Passing high clouds could block the sun at times, but expect mostly sunny conditions with highs right around seasonal normals (which is about 5 degrees cooler than yesterday). Clouds increase overnight into Wednesday with winds shifting to southerly ahead of the next cold front.
311 AM PDT Tue Oct 13 2020 High pressure will lead to a warming and drying trend for the week. We are going to see quiet weather for today as upper level ridging continues to build into NorCal. This will bring a continue warming trend with highs being a few degrees warmer than yesterday. The forecast does become more active on Wednesday as we see a trough dig out of Canada and deepen as it heads into the northern Rockies. The Pacific ridge will also strength at this time creating an increased surface gradient over NorCal peaking late morning into the afternoon with a SAC to MFR gradient around 10-14 mb.
This is in response to pres falls across the high Plains as an upper trough drops out of southwest Canada and deepens across the northern Rockies into the northern Plains. Temperatures will respond as veered low level flow will bring in much warmer conditions to the area.
The main message will be the return of record and near record heat today and Wednesday as high pressure aloft strengthens over the region.
A beautiful Fall day is on tap, with highs in the low to mid 70s under abundantly sunny skies.
734 AM EDT Tue Oct 13 2020 Drier and sunnier conditions will return Today, with the region remaining dry and seasonable until a late week low pressure system brings more rain and cooler air. Any lingering showers over the higher elevation will exit quickly, clearing before 15z. Cooler air filtering behind the front will drop area temperature closer to seasonal norms.
High temperatures on Wednesday will range quite a bit, with northeast Nebraska seeing highs near 70 and the southern Nebraska and Iowa border topping out in the lower 80s.
As of early this morning, a cold front attached to a broad upper trough has cleared the CWFA, and a notable drop in temperatures and dewpoints can be seen by sfc obs. With high pressure and subsidence now building behind this front, expect a more typical fall day today, with temperatures only rising into the low to mid 70s across the area this afternoon. Enjoy! Northerly flow will continue advecting cooler temperatures into the area overnight, and under clear skies our temperatures will plummet into the middle to upper 40s across the area.
950 AM EDT Tue Oct 13 2020 Drier and sunnier conditions will return Today, with the region remaining dry and seasonable until a late week low pressure system brings more rain and cooler air. Cooler post-frontal air will leave the region with seasonable high temperature.
409 AM CDT Tue Oct 13 2020 High pressure will build over the region today bringing mostly sunny skies and diminishing sustained winds. Low pressure will move through the Dakotas late tonight through Wednesday. Inverted V soundings in the morning will help those winds mix down as the low moves east. An upper trough will dig into the northern plains on Wednesday bringing significantly cooler air with it as H85 temps fall 6C to 8C through the day. A strong mid-level ridge/block just off the west coast will allow for energy to dig southeast across the Western/Northern Plains during the period.
However, this front is still expected to ease through Deep South Texas and the Rio Grande Valley at the surface as a weak cold front, while 500 mb high pressure dominates overhead.
Elevated fire weather concerns will again be present across western and southern Minnesota given the windier and warmer conditions.
543 AM EDT Tue Oct 13 2020 Clear skies and lighter winds will continue this morning in the wake of last evening's cold front. It will also drive a weak cold front across Se MI tonight. There will be a strengthening of the low level inflow across the Ohio Valley into Lower Mi Wed night in response to this system, driving a sfc warm front across Se Mi. The low levels will remain very dry, which will inhibit precip along the warm front.
631 AM EDT Tue Oct 13 2020 Pleasant weather today with plenty of sun will be accompanied by slightly cooler temperatures than yesterday with highs close to 70. A similar day is ahead Wednesday with highs a little warmer from around 70 to 75.
Deland is forecast to reach the lower end of Action Stage, and could actually fall below it late this week or by this weekend.
South to southwest winds will return on the backside of the high, but remain in the 10 to 15 mph range for the most part. Overnight lows will range form the mid 40s across the eastern Ozarks to the lower 50s in southwest Missouri and southeast Kansas. Strong southwesterly winds develop across Missouri well ahead of the surface cold front that will lie across southern Nebraska into Iowa. The aforementioned cold front will sweep through the area Wednesday night.
2) Turning much colder late week 3) Generally dry with low precipitation chances mainly this weekend Through Wednesday a fast semi-zonal flow pattern will usher in a series of cold fronts today and Wednesday.
However, a massive ridge will build in the eastern Pac toward the end of the week and will dislodge a large pocket of arctic air south into the CONUS, supporting much colder temps with increasing chances for snow accums locally. The next impulse will push into the Pac NW and support short wave ridging over the Northern Plains today. Sfc cold front will cross the region Wed supporting a decent round of CAA and sfc pressure rises. Another impulse will bring more shower chances to the region Thur, with much cooler temps expected as well as continued breezy winds. Very strong northwest winds are expected Wednesday behind a cold front.
A trough of low pressure will move southeast of the region this morning, with a cold front moving into region from the northwest this afternoon and evening. This front will stall across NE FL Tonight through Wednesday as high pressure builds to the north. However, the combination of return flow around the high, and convergence along the boundary could produce a few showers near the coast on Wednesday.
548 AM CDT Tue Oct 13 2020 Updated for 12Z aviation discussion 12Z TAF discussion: VFR conditions and light NNW surface winds will prevail this forecast period as weak high pressure builds over the forecast area. /EC/ Today through tonight: Cool air advection over the ArkLaMiss region in the wake of a departing cold front early this morning is making for a fairly large northwest-southeast temperature gradient with readings ranging from near 70 in the Pine Belt to near 50 over the upper Delta region. Weak high pressure will build over the ArkLaMiss region in the near term.
744 AM EDT Tue Oct 13 2020 Latest RAP model has deep layer ridging in the western/central gulf of Mexico that eases eastward today. High pressure tracking east across the Gulf of Mexico through the week will slowly veer north or northwest winds to northeast or east with speeds generally 15 knots or less.
A relatively weak lee-side trough will result in moderate southwest winds at KLVS with light winds forecast elsewhere.
/issued 313 AM CDT Tue Oct 13 2020/ An upper trough is over Canada and the Upper Midwest with westerly flow over southeast New Mexico and West Texas. This upper trough is expected to move to the east today with southerly winds returning to the area. Another upper trough is expected to dig south into the Upper Midwest with winds across West Texas and southeast New Mexico out of the west on Wednesday.
848 AM CDT Tue Oct 13 2020 A cold front has pushed into central GA thru southwest AL this morning. High pressure has dropped behind the front into the lower OH, TN and Red River valleys this morning. Highs should still reach 70-75 in valleys and upper 60s atop the higher plateau areas. Northerly flow will continue advecting cooler temperatures into the area overnight, and under clear skies our temperatures will plummet into the middle to upper 40s across the area.
After a chance of light rain across Del Norte county later today, warmer and drier conditions will return across the area.
Issued by National Weather Service Tampa Bay Ruskin FL 642 AM CDT Tue Oct 13 2020 High pressure builds in from the north with VFR conditions and light NNE winds around 5-8 knots prevailing for all terminals through the period. /issued Issued by National Weather Service Houston/Galveston TX/ The weak cold front that pushed into the area yesterday has meandered its way to the coast overnight.
A weak cold front was bisecting Nebraska from southwest to northeast at 07Z with a downstream low-level jet keeping some gustiness to some wind observations over central Kansas and southeast Nebraska and overnight temperatures fairly steady. Under full sun, have sided on the warmer end of guidance with highs a few to several degrees warmer than Columbus Day given the overnight WAA and a mild start to the day.
Highs over the plains today will mostly be in the upper 70s to lower 80s, with upper 60s to mid 70s in the high valleys, and mid 60s to around 70 in Teller County. Min RH values this afternoon are expected to be below 15 percent in the high valleys and over most of the lower elevations. These locations are where there is currently a Red Flag Warning in effect, and no changes are needed to this highlight at this time. Westerly breezes tonight in many areas will lead to warmer than average overnight low temps. The gradient over the area starts to increase tonight, and by late tonight the winds over the higher elevations of Lake and Chaffee Counties and over Pikes Peak, could be gusting between 50 and 60 kts.
635 AM EDT Tue Oct 13 2020 Drier and sunnier conditions will return Today, with the region remaining dry and seasonable until a late week low pressure system brings more rain and cooler air. Any lingering showers over the higher elevation will exit quickly, clearing before 15z. Cooler air filtering behind the front will drop area temperature closer to seasonal norms.
552 AM CDT Tue Oct 13 2020 Breezy, seasonal weather lingers in place through mid-week, as High pressure dominates the weather across the Midwest.
-- Remaining mild with small chances of rain through Wednesday -- As expected, skies have cleared out across all of the area in the wake of the upper wave and associated cold front that moved through last evening. Another wave and cold front will arrive Wednesday evening after a mild day with good warm air advection occuring with gusty SW winds.
Low moves off to the east on Wednesday with high pressure pushing the lingering precipitation into the up slope areas of central/southern Montana by evening. Temperatures recover a little late in the week before another strong low pressure pushes through the state over the weekend. A low pressure system will move into the region today for increasing cloud cover.
Temperatures will trend warmer into the second half of the week.
This dense fog is the result of the combination of clear skies, calm winds, and a moist atmosphere in advance of a weak cold front. However, this front is still expected to ease through Deep South Texas and the Rio Grande Valley at the surface as a weak cold front, while 500 mb high pressure dominates overhead.