Aikyam-Lab/Synoptic-Bench huggingface dataset:
1046 PM EDT MON SEP 5 2016 Currently - High pressure centered over the southeastern United States is responsible for light northeast to east breezes across the local area. Short Term Update - High pressure over the southeastern United States will keep light northeast to east breezes through the overnight period. Outside of rain cooled outflow boundaries, overnight lows will be in the lower 80s, not far from where temperatures currently sit.
751 PM EDT MON SEP 5 2016 A blocking ridge aloft will keep central Pennsylvania dry and unseasonably warm, with slowly increasing humidity as the week progresses.
Before dawn, increasing gulf moisture through the low levels may result in increasing low level stratus, with MVFR ceilings possible at times.
Upper level ridging will remain in place over the lower Mississippi Valley through the short term, prolonging our dry and very warm weather.
1242 AM EDT TUE SEP 6 2016 A strong upper level ridge of high pressure will remain across our region through the middle of the week. Tonight will be mostly clear across the north and clear to partly cloudy Downeast as a strong upper ridge remains across the area. Otherwise, Tuesday will be warm and dry with ridging remaining across the area.
Broad trough of low pressure is expected to remain in place rest of today and tomorrow, stretching from the central Plains into Ontario while high pressure remains centered near the southern Appalachians. Similar conditions are expected to be in place again on Tuesday as upper pattern remains blocky with remnants of Hermine nearly stationary/retrograding slightly just off the east coast allowing strong upper ridge to persist across the mid-section of the country. However, the upper level ridge will begin to shift out of the region while stronger westerlies and more energetic flow approach.
/issued 300 PM CDT MON SEP 5 2016/ WV imagery shows the upper ridge anchored over AR/LA/MS, w/a longwave trough over the wrn CONUS.
1044 PM EDT MON SEP 5 2016 Upper level ridge continues overhead and keeps the area mostly dry for the next few days.
929 PM EDT MON SEP 5 2016 Mostly clear skies again tonight and dry air mass continues overnight as upper level ridging holds over the eastern Tennessee Valley and southern Appalachians.
944 PM PDT Mon Sep 5 2016 A fast moving frontal system will bring a good chance for light rain to the lowlands starting late tonight and continuing into Tuesday.
811 PM EDT MON SEP 5 2016 A blocking ridge aloft will keep central Pennsylvania dry and unseasonably warm, with slowly increasing humidity as the week progresses.
18Z surface data has high pressure over the eastern Great Lakes with a front running from northwest Minnesota into northeast Colorado. Boundaries generated from this thunderstorm complex may get into the highway 20 corridor by sunrise. As the front approaches the area Tuesday afternoon, isolated to possibly scattered showers and thunderstorms may develop in the highway 20 corridor during the late afternoon hours.
NE winds to around 15 knots behind the frontal trough dropping south across the waters and building NE swells through late Tonight should allow combined seas to peak from 5-7 ft in the offshore Gulf Stream waters late tonight.
The trough will continue to sink south during the overnight allowing drier air, for early September, to filter in to northern and central portions of the forecast area. This will allow for slightly cooler overnight lows in the middle to upper 60s in some areas along the nature coast. Expect to see less coverage of showers/storms on Tuesday with drier air limiting coverage to the far southern zones although it will remain hot with highs in the low 90s.
/issued 330 PM CDT MON SEP 5 2016/ Midafternoon GOES water vapor imagery and 12Z upper air analysis showed a broad height ridge over the lower MS River valley. A tropical maritime airmass prevailed under this ridge, with precipitable water values around 2 inches. A persistence forecast will hold for the next several days, with the possible exception of less cloud cover and slightly warmer temps.
An upper level ridge of high pressure remains centered over the Mid South this evening. Low temperatures should drop into the lower to middle 70s areawide. /issued 330 PM CDT MON SEP 5 2016/ Midafternoon GOES water vapor imagery and 12Z upper air analysis showed a broad height ridge over the lower MS River valley. A tropical maritime airmass prevailed under this ridge, with precipitable water values around 2 inches. A persistence forecast will hold for the next several days, with the possible exception of less cloud cover and slightly warmer temps.
814 PM EDT MON SEP 5 2016 Southerly winds on the backside of high pressure will continue to support mainly dry and increasingly humid conditions through midweek.
742 PM EDT MON SEP 5 2016 A pleasant evening on tap as drier and a bit cooler temps are expected with the region between Post Tropical Hermine's circulation off the U. east coast and a strong ridge over the MS valley and Great Lakes. Light northeast surface winds will back overnight as weak coastal trough develops.
1015 PM EDT MON SEP 5 2016 A blocking ridge aloft will keep central Pennsylvania dry and unseasonably warm, with slowly increasing humidity as the week progresses.
Current water vapor satellite imagery confirms that the local CWFA is located beneath northerly flow aloft to the east of a large mid- level ridge over the lower Mississippi valley. Short term NWP guidance in agreement that the ridge will remain centered across the Arklamiss region for the remainder of the night, and with no evidence of lift or advection of moist air into the region we will maintain a dry forecast. 70/DD (Issued 633 PM CDT MON SEP 5 2016) For 00Z TAFs: High pressure continues to sit over the area keeping winds light and skies mostly clear. Deep layer ridging remains firmly in place across much of the southern US helping to keep relatively benign but warm conditions in place.
A upper level trough extending from the northern Rockies south through the Great Basin will move slowly east across the region during the first half of the week. Cooler and generally dry conditions will exist through at least mid-week. RAP 850-700mb thickness/saturated equivalent potential temperature/streamlines indicate a cold front currently entering southern Utah will continue to gradually sink toward the Arizona border overnight. The cold front has made its way through the entire forecast area today.
407 PM PDT MON SEP 5 2016 A warming trend is expected through the middle of the week as a deep trough of low pressure weakens and moves east.
731 PM EDT MON SEP 5 2016 Fair weather expected to continue through this week, as dry high pressure dominates. The center of the high will push further southward towards the southeastern states through tonight. Large upper level ridge to our west will slowly move eastward through mid/late week.
An upper level ridge of high pressure has moved over the central U. Temperatures have warmed into the upper 80s to the lower 90s with heat index values in the middle to upper 90s this afternoon. Tuesday will be very similar to today as the upper level high remains over the region. Highs in the upper 80s to the lower 90s and heat index values in the middle to upper 90s can be expected.
Overnight light onshore flow will keep the moisture flowing in at the lowest levels and expect with todays rain and nocturnal inversion that some patchy MVFR CIGS/MIFG may develop west of and possibly in and around CLL/UTS. Upper level ridging strengthens over the southern U.
1100 PM EDT MON SEP 5 2016 A blocking ridge aloft will keep central Pennsylvania dry and unseasonably warm, with slowly increasing humidity as the week progresses.
Forrester Previous short term, Upper trough will remain over the West, keeping things unsettled over Montana this period. Remnants of the opening upper low will keep clouds hanging around the area tonight.
1209 AM EDT TUE SEP 6 2016 Fair weather expected to continue through this week, as dry high pressure dominates.
737 PM EDT MON SEP 5 2016 A blocking ridge aloft will keep central Pennsylvania dry and unseasonably warm, with slowly increasing humidity as the week progresses.
Upper air pattern consists of a 500 mb trough in the western U. and a ridge across the sern U. Upper air pattern changes little for this forecast period with upper flow from sw-ne and area on periphery of the ridge.
740 PM EDT MON SEP 5 2016 A ridge of high pressure will extend from the New England States to the Ohio Valley through Tuesday.
Skies may have some lingering CI in the late afternoon and evening hours with some increase in moisture aloft from Pacific tropical cyclone Newton. Upper level ridging strengthens over the southern U.
720 PM EDT MON SEP 5 2016 Upper level ridge continues overhead and keeps the area mostly dry for the next few days.
Pacific upper ridge will gradually build over NorCal through the week after passage of a front to the north of the state on Tuesday. This will bring a warming trend with temps climbing into the low to mid 90's through Thu most areas with upper 90s over the north end of the valley.
Freezing levels are awfully high, around 15000ft off of Omaha sounding, so large hail will be confined to more organized storms. 12z upper air analysis showed an 850mb thermal ridge extending from the southwestern CONUS all the way into southern MN with dewpoints around +16 to 17C aided by a 50kt southwesterly low level jet. a cold front extended northeast from lee side low pressure over western Colorado across central Nebraska and into northeast South Dakota.
912 PM EDT MON SEP 5 2016 A strong upper level ridge of high pressure will remain across our region through the middle of the week. As expected showers are dying as they mv into ridge axis tonight but potential exists that may see airmass saturate as we head into the ovrngt hrs, hwvr not expecting anything more than a few hundredths of an inch at this time. Tonight will be mostly clear across the north and clear to partly cloudy Downeast as a strong upper ridge remains across the area. Otherwise, Tuesday will be warm and dry with ridging remaining across the area.
707 PM EDT Mon Sep 5 2016 High pressure will continue to control our weather pattern through the middle of the week.
Cold front proggd to drop to our southeast this evening and switch winds around to the north into Thursday.
While minimal elevated instability exists across all of central Illinois tonight, the highest values remain focused closer to the baroclinic zone. As low pressure tracks along the frontal boundary into the Ohio River Valley, precip chances will gradually decrease from west to east across the region on Thursday. Highs will generally be in the lower 60s, with cooler upper 50s noted near the Indiana border where clouds/showers will prevail throughout the day. The upper level trough axis is forecast by all models to progress east of the central/SE Illinois forecast area by Thursday evening with subsidence and high pressure building into the area subsequently. Northwesterly flow behind the departing trough will bring in much cooler air.
Despite decent low level lapse rates, drier and warmer air above 700mb should limit thunderstorm potential. Dry conditions overnight as the low level ridge dominates, with fog possible again across the southern counties. Longwave trough digs into the Southeast on Thursday pushing a cold front through Central Alabama.
A broad area of high pressure extending over the southeast U.
A cold front is making its way south across the Northeast New Mexico Plains and the Northern Texas Panhandle. The cold front should move across the Permian Basin this evening. Have kept the High Wind Warning for Guadalupe Pass in West Texas for late tonight into early Thursday aftn as northeast gap winds could gust to 60 mph.
341 PM EDT Wed Oct 19 2016 Warm high pressure over the region will weaken Thursday.
222 PM EDT WED OCT 19 2016 A deep ridge of high pressure will extend across the region through Thursday.
added thunder to the forecast for areas north of I-80 across the High Plains this afternoon.
325 PM EDT Wed Oct 19 2016 Low pressure will track across SE Ohio Thursday afternoon and reach central Pennsylvania Thursday night.
An upper level ridge of high pressure remains over much of the Mid South today. or to points north and west along a weak cold front.
The front will slowly sag southeast tonight with the highest chance for storms ahead of the boundary.
Cold front was moving through the Texas Panhandle this afternoon. The front is expected to reach the forecast area by late Thursday afternoon while a prefrontal trough moves into the region earlier in the morning. Cooler and drier air will quickly move into the area Thursday night.
High pressure will be over the area through the west of the week.
Issued by National Weather Service Northern Indiana 127 PM EDT Wed Oct 19 2016 Aviation High pressure will provide dry and mild weather today, then low pressure passing through Ohio Valley will bring some light rain late tonight and Thursday.
An analysis of upper air features today show a mid level pressure ridge extending from the Mid-Atlantic to the northern Gulf. A broad trof axis is bringing lower heights aloft across the central CONUS. In the near term, forecast remains governed by the synoptic scale ridge over the southeast which will maintain a persistence type forecast. Heading into the day Thursday, cold front is progged to begin surging southeast, becoming aligned from across the Appalachians to off the upper Texas coast by the close of the afternoon.
The sfc cold front continues to slide south with a few light showers far west, and will be south of the forecast area by daybreak.
High pressure will support partial clearing for many areas across the northern Rockies early tonight, which could lead to some patchy fog.
221 PM EDT Wed Oct 19 2016 A cold front will continue to move southward through the area this morning before stalling out in Kentucky. An area of low pressure will move along the front tonight into Thursday.
Canada high pressure will settle over the region later tonight through Wednesday with seasonal to slightly below normal temperatures.
The cold front has entered our far northern counties and will continue to slowly sink south thru sunrise. There remains a strong signal for a sfc wave of low pressure to develop and move northeast along the front into the evening hrs. The upper level trough will push through on Thursday, with precipitation tapering off from west to east thru the day, with some lingering potential in our eastern counties thru the evening hrs. Cooler air continues funneling in for Thursday night, with lows dropping well into the 40s.
314 PM CDT WED OCT 19 2016 Everything remains on track for a cold frontal passage around this time tomorrow.
410 PM CDT Wed Oct 19 2016 A few showers out in the western portions of the forecast area this afternoon as onshore flow continues ahead of a cold front that is expected to move through the forecast area tomorrow night. Thursday looks to be fairly dry as the cold front approaches.
Northeast Montana will see a transition from the departing cool and slightly unsettled conditions to an upper-level ridge bringing in warmer temperatures.
Will see a chance for a few light rain or snow showers in Lake of the Woods area as a weak back door cold front clips the FA's far NE zones Thursday morning. Some sun is expected across the southwestern half of the FA where max temps approach 50 for Thursday afternoon, elsewhere clouds will keep temps in the low 40s.
445 PM MDT Wed Oct 19 2016 Latest upper level analysis shows a long wave trough over the central CONUS. Within the trough are a few smaller scale features. One of these short wave troughs was moving into Central Nebraska. Another trough was moving into Nebraska from the west. Ahead of this trough showers were beginning to develop due to the steep lapse rates up to 600mb and the low level moisture moving in from the northwest. A weak cold front will move through beginning in the overnight hours.
150 PM EDT WED OCT 19 2016 A deep ridge of high pressure will extend across the region through Thursday.
1229 PM CDT Wed Oct 19 2016 A cold front will move across the region overnight.
233 PM EDT Wed Oct 19 2016 High pressure will build across the region today and tonight. The high will move east on Thursday.
1200 PM MDT Wed Oct 19 2016 The main concern for the short term period will be low temperatures tonight, which have been inching near subfreezing for many lower valleys for the past few model runs. Dry air will continue to take hold of the area as a ridge of high pressure builds to the west. High pressure will continue to amplify going into the weekend, so benign weather will persist.
210 PM EDT Wed Oct 19 2016 High pressure over the region to weaken through Tonight. Weak high pressure will be stretched across the area Thursday, which is expected to keep region dry, but clouds will increase during the day. The short term period begins with an upper trough stretching from the Great Lakes to the northern Gulf coast and digging southeastward, with a surface cold front pushing into the southeast. An area of low pressure is also forecast to be near the Bahamas, beginning to move to the north. Dry and mild conditions will continue Thursday night, with lows in the low to mid 60s. The moisture along the cold front will thin out as it moves into northern Georgia Thursday night due to the dynamics well off to the northeast.
The main concern is the possibility of low temps falling to around freezing ovr the southeast plains. The rest of the southeast plains may see temps only drop into the lower and mid 30s, as there may be enough wind to keep things mixed. Will issue a freeze warning for the I-25 corridor, ern Fremont county and eastern Las Animas county, and leave the rest of the plains out of the highlight, although if the wind does die off toward morning, there could be some areas of frost. The disturbance moves east of the area for Thu and an upr ridge wl build into the state.
Did add some patchy fog into the forecast through midday for the higher mountain valleys in Oregon, including near Meacham, Ukiah, Long creek, Seneca and John Day. A warm frontal boundary will move over the CWA this evening bringing increasing moisture. Precipitation totals by daybreak Thursday are expected to range from a few hundreths or less over the Lower Columbia Basin and surrounding Foothills. A weak, transitory high pressure ridge will move east across the region today. This ridge will be followed by the next Pacific system overnight and Thursday.
By the early morning hours on Thursday, winds go slack as a pre-frontal trough approaches the RGV. Showers and thunderstorms will develop on Thursday afternoon ahead of a cold front, but should be mainly beyond the TAF period.
Latest sfc analysis and area radars show the cold front just north of the CWA. The prefrontal trough has already shifted winds over many terminals, making precise fropa difficult. A cold front is making its way south across the Northeast New Mexico Plains and the Northern Texas Panhandle. The cold front should move across the Permian Basin this evening. Have kept the High Wind Warning for Guadalupe Pass in West Texas for late tonight into early Thursday aftn as northeast gap winds could gust to 60 mph.
334 PM CDT Wed Oct 19 2016 Broad cyclonic flow continues over the Rockies and central/northern Plains today as high pressure shifts out over the far southeast CONUS per water vapor imagery. a cold front has pushed through the Panhandles with strongest northerly winds up to 25G35 knots across the western Panhandle where the pressure gradient is enhanced. An upper level ridge will build back into the southwest. Upper level winds over the Panhandles will be northwesterly becoming more zonal as the ridge shifts eastward through the weekend.
/This evening through Thursday/ A quiet night is in store across the forecast area with high pressure building in from the northwest. Thick high clouds early tonight will begin to clear out late, and modest north northwest breezes will push cooler air into Iowa with temperatures dipping into the mid 30s across the north. The current northern Plains ridge will also usher in cooler air behind the departing OH Valley front with highs only reaching the 50s Thursday.
High pressure remains in control across the forecast area through this evening. The area of high pressure will slowly move out of the area late tonight, ahead of an approaching cold front.
Also, a cold front will be moving south across West Central Texas tonight and ending up just north of the I-10 corridor by 12Z. /issued 400 AM CDT WED OCT 19 2016/ (Today) As another cold front approaches, from the north, West Central Texas will have one more day of above normal temperatures. Highs today will be mainly in the upper 80s; that's around 10 degrees warmer than average for this time of year. (Tonight) As another cold front pushes across West Central Texas tonight, showers and thunderstorms may develop along and near that boundary. As high pressure and cooler air move into Texas, look for much cooler highs on Thursday, mainly in the lower to mid 70s.
245 PM EDT WED OCT 19 2016 A deep ridge of high pressure will extend across the region through Thursday.
High resolution models suggest this boundary will lift slightly northward tonight in response to a sfc wave of low pressure as it continues to develop over the Ozarks. This low should be between SDF and CVG by dawn Thursday and will pull a cold frontal boundary through our area as it continues to track up the Ohio Valley. Behind the front temperatures will take a slow but steady drive southward as much cooler air filters into the area late Thursday and Thursday night.
Upper-level ridging builds in tonight, which should help to clear skies. The clear skies should help low temperatures get to the lower to middle 30s across the lower elevations.
CU redeveloping in the north as convective temps in the low 40s are being reached. With relatively cold column in place most if not all the area will see temperatures below freezing.
305 PM MDT Wed Oct 19 2016 Latest upper level analysis shows a long wave trough over the central CONUS. Within the trough are a few smaller scale features. One of these short wave troughs was moving into Central Nebraska. Another trough was moving into Nebraska from the west. Ahead of this trough showers were beginning to develop due to the steep lapse rates up to 600mb and the low level moisture moving in from the northwest. A weak cold front will move through beginning in the overnight hours.
1237 PM CDT Wed Oct 19 2016 At 3 AM, a Canadian cold front was located across central Minnesota. While there are some questions on the low clouds, it is pretty clear from the water vapor and infrared imagery that we will likely see a broken deck of mid and high clouds move into the area this morning and then linger across areas south of Interstate 94 through this evening. These clouds are associated with a short wave trough moving east southeast across South Dakota. On Thursday night, the models continue to suggest that the ridge of high pressure will be overhead.
352 PM EDT Wed Oct 19 2016 Dry high pressure will remain in control through Thursday.
646 PM EDT Wed Oct 19 2016 Warm high pressure over the region will weaken Thursday.
Models also are in great agreement on forecast highs for Thursday, mainly in the lower to middle 60s, west to southeast respectively.
634 PM EDT Wed Oct 19 2016 High pressure will build across the region today and tonight. The high will move east on Thursday.
Dewpoints should should stay in the lower and mid 20s F. Thursday's highs look to be 1-5 C warmer than this afternoon's highs.
637 PM EDT Wed Oct 19 2016 Dry high pressure will remain in control through Thursday.
1057 AM PDT Wed Oct 19 2016 High pressure will move in today, giving us a dry day with light winds and patchy fog.
The ridge of high pressure that has been parked over the area for the last few days will weaken tonight and clouds will increase ahead of a strong cold front.