Aikyam-Lab/Synoptic-Bench huggingface dataset:
(Issued 924 PM CDT Fri Sep 23 2016) Temps at 930 pm were mainly in the mid to upper 70s with dewpoints in the lower 60s under mostly clr skies. For 06Z TAFs: With a strong area of high pressure remaining draped over the Mid Atlantic states into the SE region, VFR conds are xpcted through the TAF period.
Cloud field more impressive to the south with 19Z dewpoints back into the lower 70s along the Red River. Upper flow becomes more meridional as the deep upper low slides east through Utah per water vapor imagery. Deep moisture will return late tonight into Saturday as the upper low enters Wyoming tonight, with energy still progged to split to the northeast and south during the day. Associated cold front still remains to the east through the day, but expect the lift to be enough to bring at least scattered precip by late afternoon in the moist atmosphere. The combination of cloud cover, exiting precipitation, and northerly winds will result in high temperatures only reaching into the low 70s on Sunday.
236 AM PDT Sat Sep 24 2016 High pressure will bring warm and dry weather to the Inland Northwest this weekend.
Southwest flow aloft will increase across the area through tonight, ahead of a large upper trough to our west. The upper trough will advance east across the Rockies today, with the northern portion of the trough progressing east across the central and northern Plains on Sunday.
Upper level ridge will continue to build in from the Southwest through Sunday keeping the region dry. An upper level ridge will sit over the region through midweek, bringing temperatures up to about 10 degrees above normal. As an upper level trough drops out of the Gulf of Alaska and approaches the Pacific Northwest, the ridge will weaken and begin to transtion east.
400 AM EDT SAT SEP 24 2016 Slightly drier air will filter into the area for today as an upper-level ridge builds over the region.
426 AM CDT SAT SEP 24 2016 Upper level pattern continues to become more amplified as the ridge axis over the SECONUS now extends well north into parts of the Midwest. Meanwhile, the upper trough out west is positioned along the Rockies with little movement in the past 12 hours due to the presence of the dominant ridge. Slightly improved odds will be found across the western portions of the area as the trough approaches from the west, but still only looking at low chance pops at best through Sunday afternoon. By Sunday evening, the trough will be well out into the Plains and the associated cold front will be knocking on the door across our northwest zones along the I-30 corridor.
426 AM CDT SAT SEP 24 2016 A very amplified long wave trough is evident across the western United States with an Upper Ridge centered across the mid section of the nation. Due to the amplified long wave trough and boundary layer winds nearly parallel to the mean upper winds, precipitation may linger in eastern Minnesota and western Wisconsin longer.
431 AM EDT Sat Sep 24 2016 Weak high pressure will extend over the area from the west today.
Although not useful for assessing low level moisture, water vapor loops place an elongated upper low reaching south into the southeastern Gulf of Mexico. Highs will top- out near 90, with lows ranging from the lower 80s to the upper 70s, all dependent on cooling from brief downpours. Q-vector predictions indicate the upper level low to our northwest will send through several PV anomalies over the next several days.
319 AM CDT SAT SEP 24 2016 An upper level low was located over southern Wyoming early this morning. The panhandles were under the right entrance region of the upper jet streak that was rotating northward into the Wyoming upper low. This trough may also provide a focus for additional showers and thunderstorms which will again move east across the eastern panhandles. A cold front will move south across the panhandles late tonight into Sunday morning as the upper level low moves out onto the northern plains.
High pressure will then begin to build in over the Great Basin and Rocky Mountain states on Sunday. In the meantime the lingering storm system will provide showers across the area this morning with potential thunderstorms this afternoon as the low ejects to the northeast.
620 AM EDT Sat Sep 24 2016 High pressure will give dry weather and seasonable temperatures for the weekend. Cold front is crossing into northern West Virginia at 07z and will continue to shift south this morning. High pressure will bring clear skies tonight through Sunday, with seasonably cool temperatures across the I-80 corridor closer to the core of cooler air aloft.
420 AM EDT Sat Sep 24 2016 A weak cold front will push south across the Ohio River today. High pressure will build into the region tonight, and will remain across the area on Sunday.
225 AM MDT SAT SEP 24 2016 Upper low is now centered over southern Wyoming, with leading edge of forcing (associated with jet streak) over western Nebraska/Kansas. Subsidence/deep dry air is building eastward around the southern part of upper low into our western CWA. At the surface a cold front is already moving towards the Colorado border and should be through our CWA by sunrise. Today-Sunday: As upper low continues to shift towards the northern plains large scale subsides as a result of ridging in the west will spread eastward.
Upper low over se Ga will drift into sw Ga today. Highs today will again range from the mid 80s coast to the lower 90s inland. Lows tonight will be in the upper 60s inland to the low/mid 70s coast.
Later tonight a surge of cooler air will arrive as winds shift to northwest. At the start of the period, northwesterly flow is anticipated aloft with a trough over the eastern CONUS while a ridge develops over the western half of the country.
359 AM CDT SAT SEP 24 2016 Upper level ridge is currently centered along the mid Mississippi River Valley and encompasses moust of the southeastern United States. The Gulf Coast is on the southern periphery of this ridge and thus not under as strong of subsidece as locations further north. This will allow for scattered convection to develop today although the coverage likely will not be very high with afternoon surface dewpoints in the lower 70s or less. Highs will be about the same as yesterday in the lower 90s. Not much will change from a temp and pop perspective going into Sunday but the ridge will begin breaking down as a long wave trough currently over the Rockies progresses northeast across the high plains.
A large ridge of High Pressure over the plains states is expected to build across the Ohio valley and Great Lakes tonight and Saturday. High pressure over Ontario will also build southwest. The upper ridge will moves east of Indiana by Sunday night.
146 AM EDT SAT SEP 24 2016 A cold front will push south of the area this evening. An area of high pressure will move south across the area through Sunday.
418 AM EDT Sat Sep 24 2016 High pressure will move down from Hudson Bay into the northeastern states this weekend.
These are the lingering effects of the warm front that pushed in across the area yesterday.
A dry ridge of high pressure will build into the two state area later tonight and Saturday and the present short term forecast appears on rack for now.
Temperatures will continue to be well above normal today as the persistent high pressure ridge remains over the region through the period.
116 AM EDT Sat Sep 24 2016 After a cold front passes through the region overnight, dry weather and seasonable temperatures are expected for the weekend. Daytime highs on Saturday will be about 10 degrees cooler than today's values. High pressure will remain over the region Saturday night into Sunday. Low pressure developing over the Northern Plains will then move to the east, bringing another cold front to the region.
Upper low over Wyoming at 09z will move northeast across Eastern Montana today and North Dakota tonight. As the low moves to the northeast tonight, showers and winds will diminish from west to east across the forecast area. High pressure will build into the area on Sunday with mostly clear skies, lighter northwest winds and warmer temperatures. The high remains over the area Sunday Night with light winds.
630 AM EDT SAT SEP 24 2016 A weak cold front slides southward through the area Today.
A surface cold front will move through the area Saturday, and models continue to indicate this will should be east of the area by the time any surface based convection develops during peak heating Saturday afternoon. Breezy conditions to continue Sunday with cooler 850mb temperatures of 9 to 13c. A broad upper ridge across the Western Conus will begin to bring slightly warmer 850mb temperatures to western Nebraska.
152 AM EDT Sat Sep 24 2016 After a cold front passes through the region overnight, dry weather and seasonable temperatures are expected for the weekend. Daytime highs on Saturday will be about 10 degrees cooler than today's values. High pressure will remain over the region Saturday night into Sunday. Low pressure developing over the Northern Plains will then move to the east, bringing another cold front to the region.
335 AM MDT Sat Sep 24 2016 Water vapor shows upper low lifting into srn WY. Upper low will gradually lift through WY and into nwrn SD late this aftn. Strong upper ridging combined with a slowdown in the upper pattern will bring dry weather to the region through much of the upcoming work week.
223 AM MDT SAT SEP 24 2016 Upper low is now centered over southern Wyoming, with leading edge of forcing (associated with jet streak) over western Nebraska/Kansas. Subsidence/deep dry air is building eastward around the southern part of upper low into our western CWA. At the surface a cold front is already moving towards the Colorado border and should be through our CWA by sunrise. Today-Sunday: As upper low continues to shift towards the northern plains large scale subsides as a result of ridging in the west will spread eastward.
(Issued 959 PM CDT Fri Sep 30 2016) The upper level low continues to sit and spin near IN/KY this evening.
16 Hard to find a way to complain about the weather today as a rather unseasonably strong synoptic scale trough remains parked over the lower OH Valley/upper TN Valley. low pressure resides across the TN Valley into the Carolinas. with high pressure trying to nose in from the west. Synoptic trough will migrate north slowly toward the lower Great Lakes.
134 AM EDT Sat Oct 1 2016 Upper level low pressure will continue to produce bands of showers across the region into the weekend. The semi-resident upper low will continue to reside in the Ohio Valley through the near term forecast period. As the upper low starts to meander northeastward a bit through the day on Saturday, colder mid-level temperatures will allow for steeper lapse rates to favor additional shower formation over the northwestern CWA, while continued upper divergence over the eastern CWA will favor development there.
447 AM EDT Sat Oct 1 2016 Little change over the weekend with high pressure to the northeast and low pressure over the Ohio Valley.
443 AM MDT SAT OCT 1 2016 Main trof axis has moved east of the area with a few lingering showers across the far southeast plains. and low temperatures will likely be cooler for the mountain valleys where good radiational cooling is expected. Lee troffing across the plains will keep lows mild along the downslope regions of the lower southeast mountains. while the lower Arkansas river valley will see slightly cooler minimum temperatures.
Vapor imagery and upper air data showed a sprawling, vertically-stacked height minimum over KY, with multiple short wave troughs rotating around the main gyre.
Upper level cyclone centered over southern Indiana at 07z will lift slowly northward today but vorticies rotating around cyclone will keep clouds and a slight chance for showers in forecast across northern Middle Tennessee generally north of Interstate 40 today.
332 AM EDT Sat Oct 1 2016 Weak low pressure will slowly pass well south and east south of New England today through tonight.
On Sat, upper wave is east with weak ridge building, but just enough lingering moisture for some isolated -tsra over the mountains in the afternoon. high pressure aloft is forecast to build across Colorado and shift east into the central plains while a strong low pressure system begins to move into the Great Basin. By Sunday, high pressure will dominate the region with dry, warm conditions expected over southern Colorado.
This disturbance will continue to progress east today to cause a slight increase in middle and high clouds that will keep highs generally in the lower 80s similar to yesterday depsite the return of weak east-southeast flow by this afternoon. This amplification of the ridge coupled with clearer skies will allow highs on Sunday to be 3-5 degrees warmer than today's closer to normals in the mid 80s.
436 AM EDT Sat Oct 1 2016 Little change over the weekend with high pressure to the northeast and low pressure over the Ohio Valley.
Spokes of energy continue to rotate around this low. Deep low pressure center will finally lift northward out of the Ohio Valley toward Michigan. highest pops remaining across our southern CWA with progressively diminishing pops to the north away from the low center and associated deeper moisture. Higher pops (likely) will spread further northward into our northern CWA as the low lifts into SE Lower Michigan. Temps will be cooler than yesterday thanks to thicker cloud cover and better chances of precip. with highs mainly in the lower 60s. Low temps tonight will cool back into the lower 50s.
An upper level trough off the coast is bringing some showers to areas of Humboldt and Del Norte counties this morning.
Another wave will rotate northward around the persistent Ohio Valley upper low Saturday bringing an increasing chance for showers Saturday afternoon into Saturday evening.
304 AM EDT Sat Oct 1 2016 Upper level low pressure will continue to produce bands of showers across the region into the weekend. The semi-resident upper low will continue to reside in the Ohio Valley through the near term forecast period. As the upper low starts to meander northeastward a bit through the day on Saturday, colder mid-level temperatures will allow for steeper lapse rates to favor additional shower formation over the northwestern CWA, while continued upper divergence over the eastern CWA will favor development there.
Satellite showing upper low centered just offshore with southerly flow aloft over the region. The upper low will move inland Saturday with partly to mostly cloudy skies and scattered showers. Temperatures will be cooler the next few days with highs down 5-15 degrees from today.
405 AM EDT Sat Oct 1 2016 Upper level low pressure over the Ohio Valley will weaken as it slowly lifts across New England over the upcoming weekend.
506 AM EDT Sat Oct 1 2016 Upper level low pressure will continue to produce a few showers across the region into the weekend. The semi-resident upper low will continue to reside in the Ohio Valley through the near term forecast period. Hi-res models have started to catch onto where shower development has been ongoing in bands around the upper low overnight. This combined with a bit of an easterly jaunt of the S-N oriented jet streak that develops on the east side of the upper low, which results in upper divergence trends generally east of the Chestnut Ridge. However, as the upper low starts to meander northeastward a bit through the day, colder mid-level temperatures will allow for steeper lapse rates to favor the formation of a shower or two, especially over the northwestern CWA.
Still have plenty of VFR bases/ceilings rotating into northern and northeastern Arkansas this evening, on the southwest side of an upper low situated over the Ohio River Valley. Tonight Through Sunday Upper low over the Ohio Valley will keep some low stratocu over us during the next 24 hours before lifting out on Saturday.
The main weather feature continues to be the closed upper level low. The center of the low has tracked about 50-100 miles north over the last 24 hours. The upper level closed low will continue to drift slowly to the north today. The highest values will be across the Plateau but even these higher numbers are slightly below normal for early October. Higher heights aloft will move into the region as the closed low drifts to the north. These higher heights aloft and mostly sunny skies will lead to temperatures around 3-8 degrees warmer than yesterday.
344 AM CDT SAT OCT 1 2016 Upper ridging over the area will flatten this weekend as a persistent upper low over the Ohio Valley lifts north and a trough begins to dig along the West Coast. We saw a few showers across the higher terrain and parts of SE NM yesterday with a weak disturbance.
Today will be a carbon copy of yesterday with aftn temps back into the lower 80s.
At 850 mb, a well developed low pressure system was centered over Kentucky and a dry north flow on the back side of this feature is still influencing SE TX. A weak trough was also noted in the lee of the Rockies. At 300 MB, a deep upper low was centered over Kentucky with a large upper level high over north central Mexico.
322 AM CDT SAT OCT 1 2016 Upper level cyclone centered over southern Indiana at 07z will lift slowly northward today but vorticies rotating around cyclone will keep clouds and a slight chance for showers in forecast across northern Middle Tennessee generally north of Interstate 40 today.
446 AM MDT Sat Oct 1 2016 A weak upper level ridge will remain over Colorado today, but with enough residual moisture over the mountains and Palmer Divide region to produce isolated to scattered afternoon and evening showers or thunderstorms. Winds will tend to be south to southeasterly as high surface pressure lies over Kansas and a lee side trough of low pressure is in place along the base of the Front Range foothills. High temperatures should be a few degrees warmer than yesterday. For Sunday upper level ridging will be over the state with the next weather disturbance moving onshore into California. This will cause the ridge to move east over the plains as the low continues to progress eastward.
138 AM EDT Sat Oct 1 2016 Upper level low pressure over the Ohio Valley will weaken as it slowly lifts across New England over the upcoming weekend.
143 AM EDT Sat Oct 1 2016 The region will remain in between high pressure to the northeast and low pressure to the southwest through the weekend.
An upper level short wave trough moves through the apex of the persistent upper ridge in place over the high plains region during the day on Saturday. Saturday night-Sunday Night: Ridging continues to dominate these periods ahead of deepening upper low. Temperatures will remain above normal, with Highs Sunday in the lower 80s and lows during these periods trending upwards of 50 or warmer.
Also less afternoon cloud cover has allowed for warmer temperatures and differential heating. Saturday a trough deepens in the eastern Pacific pulling up a transient ridge over Colorado. Models have come into better agreement with the track of the low with the less-impactful EC the winner.
Another wave will rotate northward around the persistent Ohio Valley upper low Saturday bringing an increasing chance for showers Saturday afternoon into Saturday evening. One last round of showers/isolated thunder is expected Sunday, as the main residual trough axis lifts across the region. Models are in good agreement now that the upper level low, currently dominating our weather, will have a waning influence on the region during the short term period.
411 AM CDT SAT OCT 1 2016 A large cut-off upper low will move slowly north from the Ohio Valley to the Great Lakes by Sunday morning. Sunday will mark the beginning of an early week warming trend, as the upper low lifts out.
1111 PM MDT FRI SEP 30 2016 A large Pacific low pressure trough off of the Pacific Northwest coast will move inland towards western Wyoming bringing increased clouds and showers with isolated afternoon and evening thunderstorms Tonight and Saturday.
241 AM CDT SAT OCT 1 2016 High clouds have prevented fog development across southeast Kansas for early this morning and latest satellite imagery keeps the high clouds in place. The very pleasant weather conditions will continue for this weekend across Kansas with near normal highs today and a bit warmer on Sunday.
638 AM EDT Sat Oct 1 2016 Little change over the weekend with high pressure to the northeast and low pressure over the Ohio Valley.
335 AM MDT SAT OCT 1 2016 Blocky pattern setting up with upper lows along the west coast and across the eastern U. Building ridge in between with axis setting up east of our forecast area. Still enough moisture lingering to kick off a few showers and thunderstorms, with activity favoring the higher elevations. With light steering winds, potential for valley convection will be diminished as storms will likely dissipate as they try to come off the higher terrain.
329 AM CDT SAT OCT 1 2016 The majority of the short term period will be dry as the region will be situated between high pressure to the east and low pressure to the west.
355 AM CDT SAT OCT 1 2016 Relatively benign weather will continue for the next few days with gradually warming temperatures as we continue to sit under a ridge.
High clouds spilling over the top of a temporarily flattened upper- level ridge and/or associated with a weak mid-level disturbance now moving into SW Coahuila state will be present, with a ceiling likely at least into the afternoon hours Saturday at all three terminals. The higher dewpoints may also be a function of proximity to coast and northeast late afternoon winds, but midnight flow turns more northerly and could usher lower 60s dewpoints toward the coast. Surface dewpoints range from the upper 40s across the northern ranchlands to the upper 60s across the lower valley. The lower dewpoints along with the near to above normal temperatures are allowing for a pleasant afternoon. Low temperatures tonight and Saturday night will be in the 60s at most locations, expect for the low 70s near the coast and along the River.
At 09Z north/south oriented surface cold front was about 20 miles west of the western Idaho border. The air is noticeably cooler behind the front but not as cool as in yesterday's forecast. On Sunday the main upper low currently along the coast will come inland into Oregon and generate light rain showers in Harney County. Sunday will also be a few degrees cooler than today.
332 AM CDT SAT OCT 1 2016 Warmer conditions are in store for the weekend.
102 PM PDT THU SEP 29 2016 It will be a bit cooler today but still warm.
238 PM CDT THU SEP 29 2016 Pesky upper low has drifted south of the Ohio River this afternoon, and is progged to wobble along the Indiana/Kentucky border through Friday. Periods of showers will continue to rotate around the low into our area, and will be most numerous on Friday. Have maintained the mention of isolated thunder for Friday afternoon, with edge of the 500 mb cold pool edging back into eastern Illinois as the low drifts northwest. With no real change in the air mass, temperatures will remain cooler than normal, with highs tomorrow in the upper 60s.
Surface analysis at 15Z showed the weakening cold front continuing to progress across the tri-state region this afternoon, with cooler temps and drier dewpoints behind the front to the northwest. Expect the front to nearly clear the area by tonight, with cooler temperatures and some drier air filtering into the region. More comfortable conditions will result, with overnight lows generally ranging from the mid 50s north to the low to mid 60s south and dewpoints in the low to mid 50s.