Aikyam-Lab/Synoptic-Bench huggingface dataset:
246 AM CDT WED JUN 1 2016 Convection continues to slowly and steadily push east early this morning, progressing through storm outflow rather than the synoptic cold front, which is still well west of the cwa. Tonight, with clear skies, and light northwest winds, lows should drop to the lower 50s north to upper 50s south. The quiet and dry conditions will continue Thursday evening as high pressure moves into the Great Lakes.
332 AM CDT WED JUN 1 2016 Surface obs show high pressure building into northern KS and a diffuse frontal boundary somewhere across east central KS. An area of low pressure was noted over the northern plains where a closed upper low was spinning. Water vapor also indicated an upper low over the southwest. With this split flow over the central plains and a general lack of organized forcing, think the surface ridging will be the main factor in the forecast for today and tonight. By this afternoon and evening, continued dry air advection should continue to push the higher probabilities for precip south. Have trended highs a little warmer as the RAP and NAM forecast soundings show the boundary layer mixing to around 800MB.
The upper level low has some fluctuations between convergence and weak divergence aloft. /issued 333 PM EDT TUE MAY 31 2016/ An upper level trough, along with the east coast sea breeze has brought showers and thunderstorms to South Florida today, which should continue into this evening. By tomorrow, the 500mb trough begins to weaken. By Thursday, the 500mb trough is gone, and some ridging may try to build over the area.
300 AM PDT WED JUN 1 2016 VERY WARM WEATHER THIS WEEK WITH HIGH PRESSURE OVER THE AREA.
The upper ridge over the Pacific Northwest will flatten today through Thursday as a couple of weak disturbances move through, allowing a weak front to sink down into NW Oregon. This will bring cooler air today and Thursday, along with a chance of showers to the north part of the forecast area. Another strong upper ridge will build over the region at the end of the week, bringing hot weather for the weekend.
High pressure is building aloft and and drier air is moving in from the west. Winds aloft will be strengthening by Wednesday well ahead of a low pressure system moving over the West Coast. Stacked surface-upper level low centered over ND this afternoon will slowly lift out to the NE tonight through Wednesday while a ridge of high pressure, currently extending N through the Pacific NW, drifts east across the Northern Rockies and MT. This will temporarily flatten the ridge and bring a small threat for afternoon convective showers/thunderstorms, primarily to SW MT on Thursday as well as breezy west winds to much of the area.
135 AM EDT WED JUN 1 2016 Dry weather is expected tonight as high pressure travels slowly east. Showers and thunderstorms developing along a slow moving cold front will start to impact the area on Wednesday.
This upper low with its upper level diffluence and large scale lift will interact with old outflow boundaries and a southward moving cold front today. For tonight and Thursday the threat for showers and thunderstorms will continue as the upper low moves slowly east across west Texas.
440 AM CDT WED JUN 1 2016 Drier air works its way north over the northern Gulf and north- central Gulf coast through tonight around a weakly organized low level ridge stretching west over the northern Gulf coast. /16 An upper low over the Desert Southwest this morning is expected to move into Texas Thursday, pushing a cold front toward the Mid-South and Lower Mississippi River Valleys.
Cyclonic flow transitions to broad ridging this afternoon west, and into central Thursday as mid to upper level height rises commence.
With the higher lingering low level moisture other isolates showers/thunderstorms are not out of the question. The Storm Prediction Center has much of southeast Wisconsin in a marginal severe for the re-development along the cold front this afternoon. Overall, it looks like a very pleasant day with some sunshine and highs in the low to middle 70s.
A slow moving cold front will approach the forecast area over the weekend. The models display a weak trough in or just south of the forecast area through Thursday. This trough extends southwestward from the remnant tropical system Bonnie which is forecast to remain near the North Carolina coast through Thursday. The models indicate weak upper ridging but with h5 temperatures -8 to -9 C and strong heating expect moderate instability will occur during the days.
In the short term, elevated fire danger is expected to continue into at least Tuesday afternoon as upper level ridging remains the dominant weather feature. Red Flag conditions are not expected on Monday, as winds will remain below 12 mph as high pressure becomes nearly centered over the Mid-South.
141 AM EDT Mon Oct 10 2016 High pressure building down from Canada will bring cooler temperatures to New York and Pennsylvania through Monday.
145 AM EDT MON OCT 10 2016 Canadian high pressure will extend across the eastern U. Residual flooding from Hurricane Matthew persists across portions With Post-Tropical Cyclone Matthew pulling farther and farther away from the NC coast, pressure gradient will continue to relax as Canadian high pressure builds east into the region. Expect lows similar to albeit slightly cooler than tonight, in the lower to mid 40s, coolest in rural and low-lying areas.
649 AM EDT Mon Oct 10 2016 High pressure building down from Canada will bring cooler temperatures to New York and Pennsylvania today through Tuesday morning.
High pressure will settle over the region this week providing cooler and dry weather. Dew point are in the low to mid 40s. This airmass will provide the CSRA and Midlands with the coolest temperatures since last spring with lows mainly in the 40s and highs in the lower to mid 70s.
Early this morning, upper ridging with anticyclonic flow was pushing into Arizona from the west providing a subsident environment which will result in mostly sunny skies today. IR imagery at 2 am showed a bit of thin high clouds moving through the ridge but overall skies were mostly clear. Ridging will continue to dominate today and as such we can expect another day of above normal high temperatures with most of the deserts set to see highs in the mid to upper 90s today.
330 AM MDT Mon Oct 10 2016 Flat westerly flow will redevelop over Colorado today, as short wave trough exits the state early this morning, with clouds and precip shifting eastward through Kansas. Most precip should end quickly this evening, though a few showers could redevelop over the higher peaks of the central mountains after midnight as mid level moisture increases slightly.
301 AM EDT Mon Oct 10 2016 A large ridge of high pressure will remain entrenched across the eastern third of the CONUS for the next few days. This ridge will bring mostly clear skies, light winds, and near normal temperatures to eastern Kentucky today through Tuesday. Overnight lows should be chilly once again, although not quite as cool as what we see this morning, with minimum readings from the upper 30s in our northeastern valleys to low to mid 40s on the ridgetops. Highs on Tuesday look to be slightly warmer than today, as the ridge of high pressure strengthens and temperatures are able to recover a bit better than today. Max readings on Tuesday are forecast to be in the low to mid 70s, which is actually a bit above normal for this time of year.
436 AM EDT Mon Oct 10 2016 High pressure over southern Ontario and the Lower Great Lakes will move east to New England by Tuesday.
Stacked high pressure will reign over much of the eastern CONUS today. With a dry, cool air mass in place in the wake of a dry cold front, we'll actually start the day off with below average temperatures- morning lows in the lower 50s.
/Issued 839 PM EDT Sun Oct 9 2016/ High pressure will continue across the CWFA overnight. they are a bit warmer than the diurnal curve has depicted. /Issued 307 PM EDT Sun Oct 9 2016/ Nice quiet fall like weather pattern will persist through the short term as high pressure remains parked over the eastern third of the country. The cool dry air mass will result in cooler than normal lows tonight and Monday night. 20 Mid level ridge axis will extend up Eastern Seaboard. while at the sfc a ridge will extend down the Appalachians into Ga as high pressure centers over New England.
Southwesterly flow aloft will continue through today and tonight as a positively tilted trough digs into the Northern Rockies. Tonight, the cold front will push the rest of the way through the CWA.
218 AM EDT Mon Oct 10 2016 High pressure building down from Canada will bring cooler temperatures to New York and Pennsylvania through Monday.
142 AM EDT Mon Oct 10 2016 High pressure over the central Great Lakes will move over the New England states by early Tuesday.
344 AM CDT MON OCT 10 2016 One final round of lift with an upper trough emerging across the southern High Plains was supporting widely scattered showers and thunderstorms from the eastern Panhandles through the southwest South Plains and southeast New Mexico as of 0740Z. The deep-layer moisture and lift will be further fleeting as the upper trough translates steadily east-northeastward toward the western Great Lakes by 12Z Tuesday. The southerly flow and a return of abundant sunshine will boost temperatures back above average with highs in the lower to middle 80s.
High pressure weakens over Norcal today thru Wed as low pressure moves across the Pac NW today. Confluent flow along the OR/CA border will also enhance cirrus until the Pac NW trof passes overnite.
An upper level ridge is located across the Northern Gulf coast with a short wave moving out of the Rockies into the Southern Plains. Some high level clouds are moving with the short wave over top of the upper ridge. Some light shower activity may develop late tonight and early Tuesday over the coastal waters into lower Southeast Texas with warm air and moisture advection, as the high moves off to the east. The low level southeast flow will help warm temperatures up with slightly above seasonable temperatures and a more humid air mass through the week.
An area of low pressure currently over southern Saskatchewan will track across southern Canada tonight through Monday. This low will bring a warm front across the region, along with gusty southerly winds. The best CAA takes hold over the region Tuesday night along with a mid-level trough.
310 AM MDT Mon Oct 10 2016 As high pressure recedes to Mexico and a strong trough drops into the northern Rockies from Canada, the the southern stream waves north bringing the left exit region of an 80 kt speed maxima over the area. Showers remain a threat going into Tuesday as a large scale trough digs into the northern Rockies and drives the polar jet and associated lift into eastern Utah and western Colorado.
1246 AM CDT Mon Oct 10 2016 144 PM CDT No real big weather concerns tonight as high pressure remains overhead. High pressure will begin to shift to the east tonight while low pressure takes shape over the Plains, allowing for a transition towards a south southeast wind direction.
357 AM EDT MON OCT 10 2016 High pressure keeps dry weather going through mid weak.
Dry and mild for next several days as high pressure sits over the region.
This band of showers is expected to weaken and diminish in areal coverage as it moves south and cooler and drier air filters in behind the front. Tuesday will be noticeably cooler with decreasing clouds as dry northwesterly flow behind the front moves into the area. Drier air behind the passing cold front will move into the region from the north as a strong ridge currently over Alaska expands across SE Alaska to the Pacific Northwest.
409 AM EDT Mon Oct 10 2016 High pressure will maintain dry weather through mid week.
150 AM EDT Mon Oct 10 2016 Cool high pressure will build into the region. Generally clr skies expected overnight as high pressure builds into the area from the NW. Look for early morning lows in the lower to middle 40s inland to mid 50s at the coast.
404 AM CDT MON OCT 10 2016 A weak trof has developed just to the west, with the CWA within the warm sector, while a cold front is working in from North Dakota. Cold advection will be more widespread overnight, however this will be a dry frontal passage as flow aloft is southwesterly ahead of a positively tilted trof. We will see cooler mid level temperatures and a Q vector bullseye move over the area Tuesday night to help generate precipitation, however very little lift is evident through the profile and thus only light QPF anticipated.
Breezy to windy, and warmer as the west flow aloft strengthens and 700 mb temperatures peak near 8 Celsius. Next cold front sags southward across our northern counties after midnight. Boundary layer progs suggest areas of fog along and behind the cold front over our northern counties. Increase in low and mid level moisture along with cold frontal convergence to spark isolated to scattered showers and isolated thunderstorms.
Short wave ridging builds in behind the departing southern system this evening and should keep things dry from mid evening through early afternoon tomorrow. Showers remain a threat going into Tuesday as a large scale trough digs into the northern Rockies and drives the polar jet and associated lift into eastern Utah and western Colorado.
Clearing skies early Monday will promote faster warming, and temperatures reaching the low 80s by the early afternoon. Even warmer temperatures are expected on Tuesday as winds become more westerly and downsloping.
Temperatures look good overnight with some of the outlying areas dropping into the low to mid 40's in the valleys and low lying spots. High pressure and upper level ridging will continue to build in tonight and be right over the lower Ohio Valley tomorrow. High pressure will begin to shift off to the east Tuesday night. Lows tonight will be similar to or a couple of degrees warmer than last night.
150 AM EDT MON OCT 10 2016 Aviation High pressure will continue to bring fair weather through Monday.
653 AM EDT Mon Oct 10 2016 High pressure will build in from the west today through Tuesday.
505 AM EDT Mon Oct 10 2016 Low pressure south of the Maritimes will move away to the east today while high pressure builds in from the west.
therefore think highs in those areas will be in the low/mid 70s versus mid/upper 70s elsewhere. While the lower trop is rather dry, there appears to be sufficient moisture above 7-8kft for spotty showers given the weak ascent attendant with the short wave and low level WAA via the southwesterly LLJ. This short wave trof should have exited to the east of the CWA on Tuesday morning. Scattered showers and thunderstorms are expected to develop in the prefrontal zone ahead of the advancing cold front in response to lift associated with the LLJ, and a migratory low amplitude disturbance in the west southwest flow aloft.
311 AM CDT Mon Oct 10 2016 A cold front currently across central North Dakota will slowly slide southeast tonight through the day. During the early morning hours of Tuesday forecast soundings are hinting at a chance for light freezing drizzle across northwest North Dakota as there doesn't appear to be any ice crystal formation due to a dry layer aloft. Minor snow accumulations, an inch or less, are possible across southwest North Dakota where temperatures should remain near freezing through the night and into the morning hours Tuesday.
A large continental high pressure system will build southward down the Florida peninsula today through Tuesday night.
126 AM MDT Mon Oct 10 2016 Latest upper air analysis shows a short wave trough moving over Eastern Colorado and Western Kansas. Ahead of this trough was a compact area of storms over the Oklahoma Panhandle. A short wave ridge will move over the area today, and the environment will be too dry to support more than a few clouds. Highs today will be warmer than yesterday due to warmer air advecting north into the area. Tonight a short wave trough will move over the area during the overnight hours. Dew points increase above 600mb as the short wave trough moves through. Tuesday a cold front will stall over the northern part of the area as an upper level long wave trough approaches the Tri-State Area. As the long wave trough approaches, numerous smaller scale troughs will move over the area.
420 AM EDT Mon Oct 10 2016 A dry airmass will remain in place across the region through mid week as high pressure slowly shifts off to the east.
332 AM EDT MON OCT 10 2016 Canadian high pressure will extend across the eastern U. Residual flooding from Hurricane Matthew persists across portions With Post-Tropical Cyclone Matthew pulling farther and farther away from the NC coast, pressure gradient will continue to relax as Canadian high pressure builds east into the region.
134 AM EDT Mon Oct 10 2016 Post-tropical cyclone Matthew passes well south and east of the region tonight as high pressure builds east from the Great Lakes.
617 AM EDT Mon Oct 10 2016 Low pressure south of the Maritimes will move away to the east today while high pressure builds in from the west.
Currently, a Rex Blocking pattern is still dominating Central California's weather. Yet, because the Rex Block is slowly shifting east, Central California was under the influence of the lower pressure portion of the Blocking pattern. Models show the Blocking pattern continuing to shift east and introduce a westerly (onshore) wind direction.
Substantial warm advection on Monday ahead of upper trough moving through central Canada and the Northern Plains will allow temperatures to warm well above normal. NW low level flow and 850mb temps down to -5C will be sufficient for lake effect Wed night into Thu, but invading SFC ridging will not make for prime conditions for that lake effect. Precip will mostly be rain, but some non-measurable snow is possible over the higher terrain of the W. SW winds will increase to 30 kts later Mon and Mon night ahead of another low pressure system then shift to the northwest to 20-30 kts behind the system on Wed/Thu.
338 AM EDT Mon Oct 10 2016 High pressure building down from Canada will bring cooler temperatures to New York and Pennsylvania today through Tuesday morning.
UPDATE Cold front will dip south into the Northern Plains tonight. Associated mid level S/WV trough moving through far southern Canada will bring a chance of showers to the northwest and north central momentarily, continuing overnight. Latest water vapor imagery and surface map shows broad ridging across the northern high plains with strong low level warm advection continuing.
636 AM EDT Mon Oct 10 2016 A dry airmass will remain in place across the region through mid week as high pressure slowly shifts off to the east.
Look for highs around 70, but a bit cooler around Sheboygan due to an onshore wind off the lake.
116 AM EDT Mon Oct 10 2016 High pressure will maintain dry weather through mid week.
635 AM EDT MON OCT 10 2016 High pressure keeps dry weather going through mid weak.
Low pressure will settle in through tomorrow across southern Canada and into the northwest U. Most areas, except for the Magic Valley and south- central highlands will see 20-30mph winds with the highest gusts of 35-40mph for portions of the central mountains & Upper Snake Plain. As the main portion of this low settles southeast tonight and Tuesday, an initial band/wind shift line will slowly develop across the central mountains and eastward to Island Park. The chance from Monida Pass toward Yellowstone & Driggs will be enhanced just a bit as the main cold front pushes across the border. It will be breezy again tomorrow south of the main cold front at 20-30mph with higher gusts.
139 AM EDT Mon Oct 10 2016 High pressure over southern Ontario and the Lower Great Lakes will move east to New England by Tuesday.
Aloft, ridging is large and in charge. The other consequence of the increasing moisture will be higher dewpoints and warmer low temperatures, around or a shade above seasonal averages. Luchs A flat and fairly zonal upper level pattern will continue Tuesday as a short wave trough axis moves by early Tuesday.
/issued 457 PM EDT Sun Oct 9 2016/ Drier and slightly cooler air will to filter across Florida through tomorrow, as a frontal boundary continues to push south over the region. Minimum temps should fall into the low to mid 70s along the east coast metro and mid to upper 60s over the western interior. As slightly cooler and drier air is advected in, expecting afternoon highs to only top out in the mid 80s.
302 AM EDT Mon Oct 10 2016 High pressure will build in from the west today through Tuesday.
621 AM EDT Mon Oct 10 2016 High pressure will maintain dry weather through mid week.
High pressure will continue to build to the North, leading to a Northeasterly onshore flow.
341 AM EDT MON OCT 10 2016 High pressure dominates into the middle of the week with dry weather.
An upper level ridge currently situated to our west over the ArkLaTex region will move overhead on Monday. Upper level heights increase slightly as the ridge builds and should result in a degree or two of warming in temps for Monday. Winds through the lower levels remain out of the east both Monday and again on Tuesday which will keep dry air in place. May see some recovery in dewpoints at night with values in the lower 40s but during the day we should mix out and see values drop into the mid to upper 30s.
A modest cold front will move through southwest Washington and northwest Oregon this afternoon and early evening, bringing cool temperatures and some light rain or showers to much of the forecast area.
Hot and humid weather continues across the Mid-South with temperatures in the lower to mid 90s and dewpoints mainly in the lower 70s, a little lower over NE Mississippi. Upper level high pressure will gradually weaken across the region as a cold front pushes south across the area on Thursday. Drier and cooler air will start filtering into the area on a northerly breeze. Highs will range from the lower to mid 80s along the KY/MO borders to lower 90s south of Tupelo. high pressure will continue to build into the Mid-South.
Afternoon temps will reach into the low/mid 90s with heat index values around 100 degrees. The combination of a prefrontal trough and the convergence axis that produced the previously mentioned cloud cover, could produce isolated to scattered and thunderstorms this afternoon. Locations in NE AL and southern middle TN along the terrain have the highest coverage.
Afternoon high temperatures thus far have warmed into the lower 90s most spots, with light and variable winds.
Wednesday afternoon wx maps showed a weakening upper level high pressure system over TN with hot and humid conditions and isolated convection. An upper trough, along with a surface cold front, was moving southward across the Great Lakes and midwest. Through the next couple of days, the upper high will continue to erode as the trough digs southward. This will drive the cold front southward through Mid TN. Moisture depth and convergence are not impressive, so the coverage and intensity of the showers and storms will be on the low end. It will be 5-10 degrees cooler tomorrow as winds increase to 10-15 mph from the north. Skies will clear out Thursday night, with lows mostly in the lower 60s.
249 PM CDT WED AUG 31 2016 18Z surface data has high pressure from the upper Midwest into the Plains. The main cold front ran from the eastern Great Lakes into the central Plains. Quiet and increasingly pleasant conditions will be seen from late this afternoon through Thursday as high pressure moves into the Great Lakes.
After the morning fog burns off, Thursday will be dry as a ridge builds over the area aloft.
The upper level trough/low that has been gradually moving along the Texas coast has drifted further south with the center more over the southern Texas coastal waters. As this upper low over the western Gulf drifts further south today, upper level ridging will build more so over the state. Temperatures will rebound with highs in the lower 90s today and lower to mid 90s tomorrow.