Aikyam-Lab/Synoptic-Bench huggingface dataset:
A cold front, currently across northwest Oklahoma, is expected to stall this evening. The weak cold front that will move into northern Oklahoma tonight/tomorrow will retreat back north as a ridge aloft rebuilds over the southern Plains.
The drying and warming of the mid and upper levels of the atmosphere have also raised freezing levels from 15. Winds are also backing with height from an easterly flow in the low levels to the northerly flow aloft indicating the presence of a ridge of high pressure over the area. Additionally, the drying and warming occurring since this morning show that the ridge is strengthening over the area.
646 PM CDT Tue Oct 3 2017 A cold front was bisecting Kansas early this afternoon with post-frontal temperatures in the 50s & 60s.
Main forecast challenge in the near term is temperatures as high pressure slides over the area from the northwest tonight and Wednesday. The high was centered over Montana as of mid afternoon, and is expected to be centered over western South Dakota by morning, with the coldest temperatures likely occurring west of the James River Valley. With the high in place, dry conditions are expected both tonight and through the day Wednesday. Low temperatures tonight will range from the lower 30s across south central South Dakota, to around 40 degrees in west central Minnesota.
955 PM EDT Tue Oct 03 2017 Strong, Canadian high pressure, initially centered over New England, will moderate as it builds slowly south and off the middle Atlantic coast during the next few days. An area of high pressure at the surface and aloft will maintain dry and seasonably cool conditions across central NC overnight. Quiet weather with stacked dry ridge over the area and seasonable temperatures today will be with us a bit longer. With the high overhead, another mostly sunny day is on tap, with light winds and highs a couple of degrees warmer as we cut off the cool air advection and the airmass begins to modify.
Expect the winds to fall off the most along the Missouri River and west closer to the high pressure area. Main forecast challenge in the near term is temperatures as high pressure slides over the area from the northwest tonight and Wednesday. The high was centered over Montana as of mid afternoon, and is expected to be centered over western South Dakota by morning, with the coldest temperatures likely occurring west of the James River Valley. With the high in place, dry conditions are expected both tonight and through the day Wednesday. Low temperatures tonight will range from the lower 30s across south central South Dakota, to around 40 degrees in west central Minnesota.
900 PM CDT Tue Oct 3 2017 The cold front continues to make slow progress toward central IL from the NW. The coverage of those showers may be focused from SW to NE across our central counties, with NW and SE areas remaining relatively dry until the cold front nears our NW counties later tonight. Then a lull in the rainfall threat is likely until much later tonight when a cold front starts to push into the area.
1038 PM EDT Tue Oct 3 2017 Aviation section updated The forecast period will be much more active than the last few weeks as a series of low pressure systems passes through the forecast area over the next seven days. The first is progged to start affecting central Indiana this evening with its associated cold front eventually stalling over the Lower Midwest through the end of the week.
1252 AM EDT Wed Oct 4 2017 High pressure exits today. High pressure drifts off the East Coast today as the ridge begins to flatten. A s/w trof will scoot through the eastern lakes with the associated surface front laying out across central Ohio and southern Pennsylvania tonight. A cold front will approach tonight, but check up across central Ohio and northern Pennsylvania.
Chattanooga Airport, TN 56 82 56 82 / 0 0 0 0 Knoxville McGhee Tyson Airport, TN 51 80 54 80 / 0 0 0 0 Oak Ridge, TN 52 81 55 81 / 0 0 0 0 Tri Cities Airport, TN 47 79 51 80 / 0 0 0 10.
817 PM EDT Tue Oct 3 2017 High pressure aloft remains centered over the south-central U. this evening with low pressure off the Florida east coast. At the surface, strong high pressure continues to ridge southward over the region from just off the northeast U. coast while an area of low pressure over the southwestern Caribbean Sea continues to show signs of organization.
Calm and quiet conditions expected with high pressure in control.
VERY HAZARDOUS BEACH/BOATING CONDITIONS INTO LATE WEEK WITH Brisk to strong onshore flow will cont overnight as a strong hi pres ridge over the Mid Atlc/New England region interacts with a weak easterly wave over the FL Straits/NW Carib to maintain a tight sfc/low lvl pgrad over the FL Peninsula. Strength of the low lvl flow will be strong enough to push many of these shras well inland, so PoPs will be carried areawide overnight. Reports of coastal road closures arnd high tide earlier this evng prompted the issuance of a Coastal Flood Advisory that will run concurrent with the High Surf Advisory already in place. Near to full gale conds continue over the lcl Atlc as a strong hi pres ridge over Mid Atlc/New England region interacts with an easterly wave over the FL Straits.
849 PM EDT Tue Oct 3 2017 High pressure will maintain dry and warm weather through Wednesday.
/Issued 303 PM CDT Tue Oct 3 2017/ Low to mid level south to southwesterly tropospheric flow prevails over the region today, in between a closed low pressure over the western CONUS and ridge to our east. Eventually, drier air over the southeast CONUS will retrograde back over our region with the mid level ridge, shifting the deep layer moist axis north and west with time.
1147 PM CDT Tue Oct 3 2017 A cold front was bisecting Kansas early this afternoon with post-frontal temperatures in the 50s & 60s.
1027 PM EDT Tue Oct 3 2017 High pressure will bring moderating temperatures and mainly dry weather through Wednesday afternoon.
Evening analysis shows cold front extending from Wichita to Gage, with southeasterly flow maintain the slight upslope flow. 0", with current surface dewpoints in the low to mid 70s. In fact, Tulsa set a new record for the highest dewpoint for October, with 75 degrees recorded today, breaking the old record of 74 set on October 9, 1949. Thus far, most areas in eastern Oklahoma and western Arkansas have seen around a half inch or less of rain, although McAlester and Eufaula have had the highest amounts, with over 2" at Eufaula.
857 PM EDT Tue Oct 3 2017 High pressure will continue influence the region through Wednesday.
510 PM MDT Tue Oct 3 2017 Broad area of cyclonic flow across the western to north central CONUS remains with an upper low over ND and a second larger low over CA/NV. Temps tonight are expected to drop to near or below freezing across northeast Wyoming. The difficulty is knowing how far east the temps will reach freezing. There is enough of a chance of freezing temps pushing into south central SD that have issued a freeze warning all the way to Todd/Mellette counties. Return flow will set up Wednesday with warmer air pushing back in from the south. CA/NV upper low will push into MT late Wed into Thu. The upper low will stall out with a series of waves crossing the region within the southwest flow.
643 PM CDT Tue Oct 3 2017 The cold front that brought us widespread rain and thunderstorms the past couple nights has pushed south of the area, and cool northerly winds continue to filter in behind it.
701 PM CDT Tue Oct 3 2017 At 315 PM, a cold front was moving across northern Wisconsin and western Lake Superior. Temperatures ranged from the lower 70s along the North Shore of Lake Superior, and in portions of northwest Wisconsin, to the 50s across much of northeast Minnesota. High pressure will continue to build into the Northland overnight, as a dry slot works its way across the region. Wednesday is shaping up to be a quiet day, with high pressure bringing dry westerly winds into the region. Highs will be a bit cooler, with readings in the mid 50s to lower 60s by afternoon.
754 PM EDT Tue Oct 3 2017 High pressure extending into the area from the northeast will shift slowly eastward over the next few days. The winds will combine with the clouds to keep temperatures in the eastern Midlands through the CSRA in the low 60s with the remainder of the area in the upper 50s to around 60.
719 PM EDT Tue Oct 3 2017 High pressure in control through mid week. Stagnant weather pattern continues under a region of general high pressure, with basically little change to the forecast. While temperatures Wednesday will be similar to today, a bit more moisture makes it into our area as the high center shifts to our east. The upper ridge axis will shift to the east coast tonight.
This should remain in place as an upper level high shifts SW over the area tonight into Wednesday. Hires models indicate a few weak pieces of energy on the leading edge of the high.
642 PM CDT Tue Oct 3 2017 Lingering showers from last night's heavy rainfall have mostly moved east of the area this afternoon, with a few lingering showers ongoing along the cold front across western WI. High pressure moves in behind this cold front bringing with it clearing skies, & at least a brief reprieve from the rainy weather for tonight & Wednesday. Highs around 60 & lows in the low- mid 40s on Wednesday will be seasonable for early October.
805 PM EDT Tue Oct 3 2017 Canadian high pressure has built south into the area and will control the weather through work week. Just about as quiet as it gets with high pressure remaining in control.
Will keep a VCSH in for all sites for the next few hours, but CRP/ALI have the highest chance of seeing a shower/storm in the next few hours.
958 PM EDT Tue Oct 3 2017 High pressure will continue to influence the region through Wednesday.
A ridge of high pressure will build into our region leading to a warming trend toward the end of the week. Another cool and crisp day across the region today with highs once again trending cooler. Clear skies prevail across the region tonight as a broad upper level trough gradually kicks out to the northeast.
Temperatures may level out or even rise late tonight over far north central Minnesota as clouds move back in ahead of the upper trough. At 315 PM, a cold front was moving across northern Wisconsin and western Lake Superior. Temperatures ranged from the lower 70s along the North Shore of Lake Superior, and in portions of northwest Wisconsin, to the 50s across much of northeast Minnesota. High pressure will continue to build into the Northland overnight, as a dry slot works its way across the region. Wednesday is shaping up to be a quiet day, with high pressure bringing dry westerly winds into the region. Highs will be a bit cooler, with readings in the mid 50s to lower 60s by afternoon.
736 PM EDT Tue Oct 3 2017 Showers and even a few thunderstorms will become more numerous later tonight into Wednesday as a cold front sags into the area and then stalls. The result during this time will be a trend toward cooler temperatures and diminishing shower chances.
940 PM EDT Tue Oct 3 2017 High pressure will move south of the region overnight. A cold front will approach later Wednesday then cross the region Wednesday night.
653 PM CDT Tue Oct 3 2017 Scattered showers and a few thunderstorms remain across south central Texas this evening, but convection should be mostly winding down for the Interstate 35 sites as the focus shifts further west with the approaching upper ridge from the east. The ridge to the northeast builds southwest into portions of the CWA on Wednesday.
Temperatures are trending slightly warmer than the earlier forecast suggested, but I think we'll still reach our expected low temperatures as what's left of today's clouds continues to dissipate.
A northeasterly moving upper low is on track to bring widespread precipitation across southwest Idaho and the southeastern portion of Malheur County Oregon. While precipitation amounts are expected to vary greatly based on the track of the upper low, locations south and east of a Stanley to Mountain Home line still look to receive the highest amounts; precipitation amounts could reach up to a quarter of an inch with locally greater amounts.
Most if not all of our cwa will see temps fall below freezing tonight. Upper low over NW North Dakota is slowly shifting northeastward and filling. Our main weather message for tonight is a first "hard freeze" for many locations at the lower elevations (28 degrees or lower for a few hours). However, another cut off upper low over Nevada will slowly lift northward and bring our western mountain zones under a divergent flow with increasing mid level moisture.
1104 PM CDT Tue Oct 3 2017 Lingering showers from last night's heavy rainfall have mostly moved east of the area this afternoon, with a few lingering showers ongoing along the cold front across western WI. High pressure moves in behind this cold front bringing with it clearing skies, & at least a brief reprieve from the rainy weather for tonight & Wednesday. Highs around 60 & lows in the low- mid 40s on Wednesday will be seasonable for early October.
1250 AM EDT Wed Oct 4 2017 High pressure will move south of the region overnight. A cold front will approach later Wednesday then cross the region Wednesday night.
Strong high pressure centered off the New England coast is maintaining a tight pressure gradient across the area with gusty ne winds. to the low/mid 70s coast where winds will remain strong and gusty.
709 PM EDT Tue Oct 3 2017 High pressure will maintain dry and warm weather through Wednesday.
717 AM EDT Tue Apr 25 2017 The region will continue to be sandwiched between two areas of low pressure, one to the west and one to the east, today through Wednesday.
Storms will form late today along an approaching cold front. /Issued 331 AM CDT Tue Apr 25 2017/ Low level moisture continues to surge north this morning ahead of upper trough digging south through the central/southern Rockies. A limited severe threat will persist overnight as the cold front moves into southeast Oklahoma/northwest Arkansas by Wednesday morning.
951 AM EDT Tue Apr 25 2017 Upper level low over the Carolinas will move to the mid Atlantic coast by this evening. Meanwhile, weak high pressure will build into the Ohio Valley in the wake of this system. On Wednesday, weak high pressure will move east while low pressure and a cold front move into the western Great Lakes and Mississippi River Valley.
813 AM EDT Tue Apr 25 2017 High pressure across northern Maine this morning will move east into the Maritimes by this evening.
These forecast temperatures are a few degrees cooler than normal for this time of year. After these systems pass by, a longwave trough will deepen over the Great Basin in an "inside slider" pattern.
632 AM CDT Tue Apr 25 2017 Low level pressure gradients will tighten today ahead of low pressure developing across northwestern Oklahoma. Meanwhile, upper level low pressure will slowly move east today across Wyoming with multiple short wave troughs traversing northeast to the south of this low across the southern and central Plains.
1237 PM EDT Tue Apr 25 2017 A complex low pressure system will continue to impact Eastern North Carolina today then move northeast away from the region tonight. High pressure in the central Atlantic will build in Wednesday through the weekend bringing above normal temperatures and below normal rain chances.
948 AM EDT Tue Apr 25 2017 Surface analysis shows low pressure still resides off the Carolina Coast line and we remain in the east to northeast flow at the surface. Showers should wind down by mid day as the mid level ridge works towards the region. As the ridging spreads in the clouds should gradually thin and diminish through the day. The central CONUS will be under the influence of a trough, with several short waves to translate across the Mississippi Valley.
945 AM EDT Tue Apr 25 2017 Low pressure will move away from the area today while high pressure builds in.
937 AM EDT Tue Apr 25 2017 Building high pressure will return dry, and very warm weather to the Upper Ohio Region for Wednesday. Upper level low pressure will continue to slowly trundle up the East Coast today. That flow is expected to weaken as heights rise/high pressure builds over the Mid Ohio Valley this afternoon. Temperature will vary across the seasonal averages with warmer readings west of I 79 where subsidence ensues/clouds and rain will cease first.
1158 AM CDT Tue Apr 25 2017 The cold front this morning was located across south central Minnesota southwestward into the central plains. The cold front will be slow to make much eastward progress until the upper trough begins to lift northeastward.
A warm front will approach later this afternoon, bringing more rainfall and high snow levels. A warm front will approach the coast Tuesday morning with ceilings and visibility there lowering to IFR in the afternoon. A warm front will bring rain with gusty south winds reaching a peak at advisory strength in the late afternoon and early evening. Improvement will be very slight and very brief late this evening before the trailing cold front brings another episode of building seas.
Next moist upper level trough and cold front are quickly approaching the Pacific Northwest coast today. The cold front with showers will reach Southeast Oregon around 03z tonight and moves east into Southwest Idaho late tonight/early Wednesday morning. Colder temperatures expected due to the passage of a cold front.
Drier air and high pressure keeps flight weather vfr through most of the forecast period.
631 AM CDT Tue Apr 25 2017 The cold front this morning was located across south central Minnesota southwestward into the central plains. The cold front will be slow to make much eastward progress until the upper trough begins to lift northeastward.
722 AM EDT Tue Apr 25 2017 Building high pressure will return dry, and very warm weather to the Upper Ohio Region for Wednesday. Upper level low pressure will continue to slowly trundle up the East Coast today. That flow is expected to weaken as heights rise/high pressure builds over the Mid Ohio Valley this afternoon. Temperature will vary across the seasonal averages with warmer readings west of I 79 where subsidence ensues/clouds and rain will cease first.
946 AM EDT Tue Apr 25 2017 A robust area of low pressure is moving northward along the Carolina coast this morning, and is the parent low for the front that passed over the Keys area last evening. High pressure has moved over the Central Gulf of Mexico in the wake of the front. The high pressure over the Gulf of Mexico will slide across the Keys area and the Florida Peninsula today through Wednesday. Winds will turn east to southeast allowing warmer air to advect over the area returning daily maximums to the mid 80's by Wednesday and through the weekend.
1018 AM EDT Tue Apr 25 2017 Aviation section updated High pressure along the New England coast will dominate our weather through most of Wednesday.
1212 PM EDT Tue Apr 25 2017 Building high pressure will return dry, and very warm weather to the Upper Ohio Region for Wednesday. Upper level low pressure will continue to slowly trundle up the East Coast tonight with increasing subsidence on the western flank suppressing residual rainfall. Insolation with rising heights/warm advection in response to a deepening plains trough will maintain dry weather for Wednesday, and drive temperature well above the averages.
1220 PM EDT Tue Apr 25 2017 Low pressure will move away from the area today while high pressure builds in.
1115 AM EDT Tue Apr 25 2017 High pressure across northern Maine this morning will move east into the Maritimes by this evening.
Weak ridging will be in place today with highs in the lower/middle 80s inland and upper 70s near/at the coast. The local area will be dominated by weak ridging today as an upper level low continues to move east of the area and a new trough digs into the southern plains. Mostly sunny skies are expected today with highs ranging from the upper 70s along the coast to the low to mid 80s inland.
Will be in a quiet and dry weather pattern today with high pressure continuing to build in. Chattanooga Airport, TN 78 57 86 63 / 0 0 0 20 Knoxville McGhee Tyson Airport, TN 77 56 85 61 / 0 0 0 10 Oak Ridge, TN 78 56 86 62 / 0 0 0 20 Tri Cities Airport, TN 71 52 84 55 / 10 0 0 10.
A cold front will turn winds to the northwest after sunset and expect it to remain gusty. WV imagery shows an upper trough over WY, w/a secondary trough over SE OR that is forecast to phase w/the first and move thru the Texas Panhandle by 12Z Wed. Unfortunately, a cold front will accompany the upper trough, and move thru Wednesday, w/fropa at KMAF around 14Z.
716 AM EDT Tue Apr 25 2017 A complex low pressure system will continue to impact Eastern North Carolina today then move northeast away from the region tonight. High pressure in the central Atlantic will build in Wednesday through the weekend bringing above normal temperatures and below normal rain chances.
1159 AM EDT Tue Apr 25 2017 The region will continue to be sandwiched between two areas of low pressure, one to the west and one to the east, today through Wednesday.
with breezy south winds and highs generally in the lower 80s. Developing cyclone/cold front/dryline system to our west will shift east through the day.
The pattern will then change by late week as a ridge builds off shore over the Pacific, resulting in warmer and drier conditions for northwest California. A weak warm frontal boundary is spreading clouds across nw ca this morning. Rain intensity will increase tonight when the trailing cold front moves through.
737 AM EDT Tue Apr 25 2017 Low pressure will move away from the area today while high pressure builds in.
Low level moisture on the backside of low pressure across North Carolina will shift to the east and northeast today, with mostly sunny skies across the region by the afternoon. Westerly winds will prevail, and after a cool start, temperatures will rebound into the low to mid 80s. Wrap-around low level moisture on the backside of low pressure across North Carolina will lift to the northeast today, with clearing skies through the afternoon.
944 AM EDT Tue Apr 25 2017 The region will continue to be sandwiched between two areas of low pressure, one to the west and one to the east, today through Wednesday.
944 AM EDT Tue Apr 25 2017 A stacked low pressure systems continues to pull up the eastern seaboard this morning, weakening the local pressure gradient while still ushering in a drier and cooler airmass. Tonight, another cool night with the lowest temps of the week as clear skies and light to calm winds allow temps to fall into the M50s to near 60 degrees. Departing low pressure over the mid Atlantic will allow pressure gradient to relax through the day.
753 AM EDT Tue Apr 25 2017 Clouds and moisture from a low pressure area along the mid Atlantic coast will move north into the region today, with rain showers developing across the North Country this afternoon and tonight.
At 300 AM CST, a weakening cold front was moving across Mid TN, approaching the Nashville area, with showers and scattered thunderstorms along and ahead of it. Showers and thunderstorms will spread across the entire area tonight as a disturbance moves in from the west, generating a low pressure wave along the stalled front.
A regional upper-level composite analysis revealed an expansive deep layer mean anticyclone centered over Mexico, with Florida along its eastern flank. This suggests a significant gradient in potential buoyancy, likely arising from the warmer and more moist near-surface air over the Gulf Stream. Current dewpoint temperatures are in the lower 70s, with light north breezes. A mostly sunny and rain-free afternoon is expected across the Florida Keys, with high temperatures in the lower 80s.
343 AM MST Mon Nov 6 2017 A cold front across the area has kept snow showers going across the region most of the night. Tonight a small ridge builds over Central Idaho and Western Montana with very dry air aloft and light winds. Confidence in the low temperature forecast numbers is low though, due to the potential impacts from any lingering low cloud and fog forming in some valleys.