Aikyam-Lab/Synoptic-Bench huggingface dataset:
243 PM CDT Tue Oct 13 2020 The longwave pattern over the next several days will feature a longwave trough over central Canada with a broad band of westerlies extending through the U. With increasing downslope flow and compressional warming ahead of an approaching cold front the temps will warm accordingly with some areas of NE OK making a run at 90 degrees, hopefully for the final time this year.
427 PM EDT Tue Oct 13 2020 High pressure passing over the Ohio Valley tonight and Wednesday will guarantee fair dry weather through Wednesday night.
Strong winds will occur over the southern zones overnight ahead of the cold front, but do not look to be strong enough for High Wind concerns. Wednesday, the low will move to our east allowing strong north winds to bring the cold air into eastern Montana. Upper trough will then deepen to our east allowing a NW flow to keep the cold air in place through the remainder of the week.
The forecast area will remain situated between an upper ridge extending eastward from northern Mexico across the Gulf of Mexico, and a very broad upper trough over the central and eastern conus through tonight. Lows tonight will be cooler and range from 50 to 55 degrees inland and from 55 to 60 degrees near the coast.
As the area of high pressure moves off to the east, we should get a light southwesterly flow across the region. Lows should generally be in the lower-mid 40s, though a few of the valley locations and typical cold spots could hit the upper 30s. Broad and deep upper level trough will develop cross the eastern CONUS for the end of the week.
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.
With high pressure right over us tonight and maximum radiational cooling, look for areas of fog to develop overnight, some of which could be dense close to bodies of water.
349 PM EDT Tue Oct 13 2020 The afternoon surface analysis shows high pressure continues to nose into the Ohio Valley. Overall we are looking at clear a calm conditions tonight and the high parked to the east will favor a ridge/valley temperature split a little more in the east. Given this only made some minor adjustments to temperatures forecast tonight, but the lowest afternoon dewpoints will have to be looked at for updating through the evening. Then a more amplified trough will push into the Great lakes and Upper Midwest Wednesday night.
The surface map depicts high pressure over NE, resulting in southerly winds across northeastern WY and westerly winds across the western SD plains.
A very broad upper level troughing pattern is in place across the CONUS with nearly a zonal flow over Texas.
403 PM EDT Tue Oct 13 2020 The weak cold front over the southeast Straits has now turned up stationary. The center of continental high pressure poleward of this front will move east across the Tennessee Valley this through tonight, emerging off the North Carolina coast on Wed afternoon.
328 PM EDT Tue Oct 13 2020 A weak cold front will usher some much drier air into the region tonight though daytime highs will remain warm.
A cold front will move southeastward through the region this afternoon into tonight. High pressure then builds in to the northwest behind the front tonight. Lows overnight will range from the low 60s inland to low 70s along the coast.
Overnight lows will be several degrees warmer by Wed morning as low level moisture increases a bit and wind speeds increase again with a LLJ. By tomorrow afternoon, pre-frontal warming (increasing downslope sw flow) ahead of the next cold front will again result in near record high temps. The strongest sfc winds will not be collocated with the lowest RH so do not feel like a fire weather watch is necessary at this time, although a fire danger statement will be issued.
This will confine mid- level ridging to Mexico and the western Gulf of Mexico during this period. An occluding low pressure system should advance towards Cape Cod, leaving behind the weak frontal zone over our Atlantic waters which should slowly dissipate. Given the drier airmass lows tonight should range from the upper 60s near Lake Okeechobee, to the lower 70s for the Gulf Coast and southern interior, and mid-upper 70s along the Atlantic coast. High pressure over the Southeastern United States will eastward into the Atlantic Waters late this week allowing for the wind flow to become more east southeast late this week.
Rain showers starting over Baker County Oregon and the west central Idaho mountains this morning spreading as far south as the KBOI/KEUL area by 00z/Wed as a cold front crosses the area from the west.
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. A cold front will move through the area tonight. Very strong northwest winds are expected Wednesday behind a cold front.
/NF/ With drier air moving into the region in the wake of the cold front, dew points were lowered slightly through this afternoon. /NF/ Prior discussion below: 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.
305 PM EDT Tue Oct 13 2020 Temperatures will trend warmer into the second half of the week.
227 PM 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.
245 PM EDT Tue Oct 13 2020 High pressure passing over the Ohio Valley tonight and Wednesday will guarantee fair dry weather through Wednesday night.
1218 PM CDT Tue Oct 13 2020 VFR conditions to prevail through the 18Z TAF pd, as high pressure continues to build in at the sfc.
205 PM MDT Tue Oct 13 2020 500 mb RAP analysis and water vapor imagery showed northwest flow over the region today, with an upper trough entering the Pacific Northwest. On Wednesday, a cold front is expected to push through the High Plains, entering the northern portion of the region by the early afternoon. The cold front continues across the southern portion of the area Wednesday evening where winds will continue to be gusty. Temperatures fall into the low 30s to low 40s with the coldest temperatures in eastern Colorado.
Winds generally less than 10 knots all areas through 00Z then light/variable through the end of the TAF period except for the higher northern terrain (KHRO and KBPK) where after 15Z Wednesday morning will see south winds building to 10 to 16 knots. High pressure will remain firmly in place over the next couple days.
Little in the way of cloud cover is expected, with temperatures topping out in the lower to mid 80s. Readings I-10 south still are in the lower 60s, but that is expected to change tonight into WED as high pressure to the NW settles into the area. /issued Issued by National Weather Service Tampa Bay Ruskin FL/ 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.
131 PM 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.
High pressure will be the dominant weather feature over the southwest for the week, bringing light winds and well above normal temperatures to much of the area.
For CSV will include a tempo for an hour with MVFR CIGs for the lower clouds.
Ridging aloft in the mid to upper levels will cause mostly cloudy skies in the morning to transition to mostly sunny skies and warm temperatures above normal for Wednesday.
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.
Todays highs are running around 10 degrees warmer than normal, while tomorrows will be 20 degrees above normal. An area of low pressure will develop to our north and move east tomorrow afternoon. A short wave will swing across the Great Lakes Wednesday night within the larger North American trough. At the same time, a strong cold front will move through the local area. The highest winds are expected to be across the extreme southeastern Texas Panhandle into the Rolling Plains where 850mb winds are strongest.
Todays highs are running around 10 degrees warmer than normal, while tomorrows will be 20 degrees above normal. An area of low pressure will develop to our north and move east tomorrow afternoon.
203 PM EDT Tue Oct 13 2020 High pressure passing over the Ohio Valley tonight and Wednesday will guarantee fair dry weather through Wednesday night.
1115 AM EDT Tue Oct 13 2020 A weak early season cold front passed south across the Keys last night with little fanfare. Also in the wake of the front, the air mass has stabilized, with the flat strato-cumulus clouds over the Lower Keys serving as visual reinforcement. The weak cold front over the southeast Straits will soon turn up stationary. The center of continental high pressure following the front will move east across the Tennessee Valley this afternoon and tonight, emerging off the North Carolina coast on Wed afternoon.
257 PM CDT Tue Oct 13 2020 Early this afternoon, a weak cold front has pushed east of the area in association with gusty northwest winds in its wake. Even with inefficient mixing as the warm nose aloft strengthens prior to the arrival of the cold front, strong winds just off the surface should allow for gusts in the 30-40 mph range after sunrise on Wednesday, subsiding a bit during the afternoon. The strongest synoptic scale lift will be focused across northern WI, and this will be where the highest rain chances will be. With warming 925 mb temps up to around 16C across southern counties, some 70 degree temps are possible, depending on how thick the mid-level cloud deck is, with cooler 50s in north-central WI where thicker clouds and showers will be most prevalent.
215 PM EDT Tue Oct 13 2020 High pressure passing over the Ohio Valley tonight and Wednesday will guarantee fair dry weather through Wednesday night.
A dry cold front usher much cooler air into the area Wednesday, which will linger through the remainder of the week.
/issued 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.
1249 PM EDT Tue Oct 13 2020 Dry airmass in place will give way to a modest increase in moisture ahead of a cold front, which tracks through southeast Michigan this evening. Clear skies to start the day tomorrow will give way to increasing mid clouds as warm front lifts north through the Central Great Lakes. 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.
Temperatures range from the lower to mid 70s under sunny skies and light winds. Relative humidity values have dropped to the lower 30s across much of the region, with a few locations below 30 percent. Expect lows to fall into the low to mid 40s by Wednesday morning.
320 PM CDT Tue Oct 13 2020 This Afternoon through Tomorrow: Dry, calm weather will continue across the forecast area through tomorrow thanks a high pressure system in the region. Whereas we are on the cold air advection side of the high today, the axis of the high should translate east toward the East Coast tomorrow and bring a return of warm air advection. Have minimum temperatures for the morning ranging from mid- to upper-40s, however a few of the drier spots could get cooler if winds go calm overnight.
Drier air continues to push south over the region through tonight as a high pressure ridge settles in over the area. This ridge becomes centered over the Carolinas which puts North and Central GA in easterly flow Wed afternoon.
Above normal temperatures with gusty winds this afternoon will precede a dry cold front passage later this afternoon through tonight.
247 PM CDT Tue Oct 13 2020 Main concerns are winds and low RH values Wednesday behind the cold front. The areas don't overlap perfectly given the expectation of stronger winds continuing north of where the lowest RH values will be. Otherwise, the best forcing late tonight and Wednesday will be to our north, so the highest PoPs remain out of our area.
Drier and cooler air continues to push southeastward behind the cold front across Central Alabama. Previous cloud cover continues to mix out across our southeast counties along and south of the I-85 corridor, where dewpoints are dropping into the lower 60s as far south as Montgomery. Temps are on track to range from the low to mid 70s north to mid 80s in the far southeast.
WV imagery shows NW flow aloft continues over the region, along an upper ridge extending from the Pacific off SoCal/Baja through south Texas and into the Gulf. Models are in good agreement in increasing thicknesses Wednesday over today's, w/leeside troughing veering sfc flow to the SW-W. Late Wed night, a cold front will move through the region, w/fropa at KMAF at around 10Z.
High pressure off the coast will bring warm temperatures, cool nights and light winds into the weekend.
Unseasonably warm weather is continuing today thanks to the upper ridge of high pressure aloft.
356 PM CDT Tue Oct 13 2020 The weak cold front has passed through the area and is currently just off the coast.
149 PM CDT Tue Oct 13 2020 High pressure from the lower OH, TN and Red River valleys will shift east tonight into Wednesday into the Appalachians.
With drier air moving into the region in the wake of the cold front, dew points were lowered slightly through this afternoon. /NF/ Prior discussion below: 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.
Supported by an open 500mb short wave trough, the surface pressure gradient will increase considerably, resulting in increased southwest winds through mid to late morning.
110 PM 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.
215 PM EDT Tue Oct 13 2020 A stubborn moist air mass will persist across the southern Middle Atlantic, ahead of a cold front that will move east with following drier air this afternoon into early tonight.
Mid/upper level ridging will remain centered over South Texas through the short-term period, keeping things abnormally warm and dry. High temperatures are forecast to be about 5 to 10 degree above seasonal average on Wednesday -- generally in the low-mid 90s.
Wind gusts from 45-65 mph will be common across elevated terrain and into the High Plains of Wyoming plus southern Nebraska Panhandle. Winds have already started out being elevated this afternoon in Carbon County and this will spread east through the evening, overnight, and Wednesday to the Laramie Mountains and then the High Plains of WY. A generally unsettled weather pattern will prevail later this week into the weekend beneath active northwesterly flow associated with a large cyclone over Hudson Bay.
As for fire weather concerns, recovery overnight will be poor with RH ranging from 35 to 65 percent, with the lowest RH across southwest Nebraska. The main driving force for issuance of the fire weather watch is the continue dry conditions, anticipated warmer temperatures and near critical humidity in combination with very strong northwest winds.
1035 PM EDT Tue Oct 13 2020 High pressure passing over the Ohio Valley tonight and Wednesday will guarantee fair dry weather through Wednesday night.
Clear skies and nearly calm winds are allowing for good radiational cooling, and contributing to some of the cooler valleys already in the 40s. These will continue to settle mostly in the low to mid 40s by dawn, with a few of the coolest spots possibly getting into the upper 30s. As the area of high pressure moves off to the east, we should get a light southwesterly flow across the region. Lows should generally be in the lower-mid 40s, though a few of the valley locations and typical cold spots could hit the upper 30s. Broad and deep upper level trough will develop cross the eastern CONUS for the end of the week.
Localized critical fire weather conditions have materialized north of I-70 as the wind gradient begins to tighten ahead of an approaching cold front. Some lower valleys that have not yet experienced their season- ending freeze may drop below freezing, but for now coverage is not widespread or long enough of a duration to consider highlights.
942 PM EDT Tue Oct 13 2020 Temperatures will trend warmer into the second half of the week.
658 PM CDT Tue Oct 13 2020 Main concerns are winds and low RH values Wednesday behind the cold front. The areas don't overlap perfectly given the expectation of stronger winds continuing north of where the lowest RH values will be. Otherwise, the best forcing late tonight and Wednesday will be to our north, so the highest PoPs remain out of our area.
Cooler temperature expected tomorrow as a result of the current system moving through the area, with Wednesday night temperatures bringing a potential for some frost across the lower elevations.
1036 PM EDT Tue Oct 13 2020 Currently - High pressure over the eastern United States and Gulf of Mexico continues to bring in drier air down the Florida Peninsula and into the Keys area in wake of last nights cold front. Short Term Update - The previously mentioned high pressure systems will continue to consolidate over the eastern United States overnight. A high pressures system over the eastern United States will maintain gentle to moderate winds shifting more northeasterly across Keys waters through the overnight period.
With southerly flow returning, the current forecast remains on track for warmer temperatures Wednesday afternoon.
A dry cold front usher much cooler air into the area Wednesday, which will linger through the remainder of the week. This trough will dig southeastward tonight through Wednesday, pushing a dry cold front through the forecast area.
Clouds will continue to increase tonight in advance of a short wave trough along with some scattered light showers moving in across the north. Therefore, west to southwest winds late this afternoon will turn south in advance of this trough and then to the west after midnight and increase towards morning. Also, with the high winds, dry fuels, and lowering rh, very high to extreme fire danger is expected Wednesday afternoon. The winds will fall off to 15 to 25 mph as temperatures fall into the upper 20s to the lower 30s. However, one significant wave in the form of a strong upper trough will push through the region late in the week and over the upcoming weekend that will bring some light precip chances to the area but more significantly a much noticeable drop in temperatures.
High pressure from the lower OH, TN and Red River valleys will shift east tonight into Wednesday into the Appalachians.
656 PM EDT Tue Oct 13 2020 Anticyclonically bifurcated flow with sfc-850 high pressure center will move east of Southeast Michigan during the mid to late afternoon hours. Ribbon of modest 925-675mb thetae is poised to track into the forecast area as moisture transport increases behind the departing anticyclone. Deep potential vorticity reservior with strong left exit region dynamics will result in low pressure across the Northern Great Lakes Wednesday. Thermal ridge amplification downstream of the wave will lead to organizing elevated warm front/warm advection beginning midday Wednesday.
/22/ This Afternoon through Tomorrow: Dry, calm weather will continue across the forecast area through tomorrow thanks a high pressure system in the region. Whereas we are on the cold air advection side of the high today, the axis of the high should translate east toward the East Coast tomorrow and bring a return of warm air advection. Have minimum temperatures for the morning ranging from mid- to upper-40s, however a few of the drier spots could get cooler if winds go calm overnight.
759 PM EDT Tue Oct 13 2020 Another quiet day comes to an end with high pressure and dry and stable conditions over the region. High pressure will remain over the waters through the next several days with no headlines expected.
748 PM EDT Tue Oct 13 2020 High pressure passing over the Ohio Valley tonight and Wednesday will guarantee fair dry weather through Wednesday night.
841 PM EDT Tue Oct 13 2020 Minor near term adjustments made to temp/dewpt trends per recent obs otherwise expecting quiet ridge dominated mostly clear night on tap. Drier air continues to push south over the region through tonight as a high pressure ridge settles in over the area. This ridge becomes centered over the Carolinas which puts North and Central GA in easterly flow Wed afternoon.
Winds to become southerly and increase to 10 mph on Wednesday as high pressure shifts east.
Dry cold front will move into northeast Oklahoma late Wednesday evening, just beyond the current forecast period. /Issued 243 PM CDT Tue Oct 13 2020/ The longwave pattern over the next several days will feature a longwave trough over central Canada with a broad band of westerlies extending through the U. With increasing downslope flow and compressional warming ahead of an approaching cold front the temps will warm accordingly with some areas of NE OK making a run at 90 degrees, hopefully for the final time this year.