Aikyam-Lab/Synoptic-Bench huggingface dataset:
Cold front has been slow to push south across South Central Texas early this morning. Weak isentropic lift will maintain slight chances of showers along and west of Highway 281 tonight and from the Highway 90 portion of the Escarpment into the Hill Country as well as near the Coastal Plains on Wednesday. High temperatures will be much cooler today compared to the record breaking heat of yesterday, up to 20 degrees in the north to 10 degrees in the south. Southerly winds return to all areas on Wednesday with warmer temperatures.
1013 AM EST Tue Dec 27 2016 High pressure ridging into the area from the Atlantic will move south today allowing a cold front to cross the area tonight. The front may push just south of the CSRA before returning northward as a warm front Wednesday night.
1007 AM EST Tue Dec 27 2016 Dry weather and seasonal temperature can be expected until the approach of a Wednesday night cold front. The mid level thermal trough still looks sufficient to support a few snow showers off the lakes tonight.
In their wake high pressure will move from Kansas today to Kentucky tonight. Wednesday has been a question mark for the past several days due to feuding models as high pressure moves off to the east and a cold front approaches from the west.
424 AM CST Tue Dec 27 2016 (Today and Tonight) A stalled cold front, located just south of our counties, will slowly move back north, as a warm front, during the next 24 hours.
635 AM EST Tue Dec 27 2016 Cold front will shift east of the region this morning. Temperatures will be closer to seasonal values through midweek, before a second cold front brings snow shower chances and below average temperatures for the end of the week. Cold front continues to move eastward across the region this morning. An area of more moderate rain, coinciding with the entrance region of an upper level jet streak, will support the continuation of Categorical PoPs and higher QPF values over the northeastern WV and southwestern PA ridges.
411 AM CST Tue Dec 27 2016 At 08z, a surface cold front was well southeast of our region with ridging associated with high pressure centered over KS building in. The center of high pressure is expected to move into southeast MO by late this afternoon, maintaining westerly flow into the afternoon before backing southwest by nightfall.
524 AM CST Tue Dec 27 2016 As low pressure over the western lakes region continues to move east, a weak inverted ridge sets up over the CWA. The result is temperatures warming above freezing early before leveling off. Increased wind speeds over the model blend and added mention of patchy blowing snow, despite some locations reaching above freezing.
The lower-tropospheric moisture maximum which traversed Key West and vicinity yesterday has moved off to the west, and latest satellite-derived total precipitable water measurements from the University of Wisconsin CIMSS group show a swath of drier air moving across the entire service area at present. An impressive deep layer mean ridge dominates the large-scale weather pattern across the Gulf basin, as it has for much of the month.
941 AM EST Tue Dec 27 2016 Surface cold front continues to move south and east of the region. Overall, this leads to a slightly cooler forecast for this afternoon. In their wake high pressure will move from Kansas today to Kentucky tonight. Wednesday has been a question mark for the past several days due to feuding models as high pressure moves off to the east and a cold front approaches from the west.
Temperatures will warm into the lower to mid 80s away from the coast once again, but should remain just shy of the record highs for today, with the sea breeze keeping coastal areas in the mid to upper 70s. Winds will then become more northeasterly tonight into Wednesday as high pressure moving across the Ohio Valley and Mid-Atlantic States bridges a weakening front moving through the southeast states. Today should be the last day with near record highs possible, at least for this week, as heights lower and a cold front sweeps across the region later in the week.
909 AM EST Tue Dec 27 2016 A cold front will move east of the area today.
738 AM CST Tue Dec 27 2016 A broken line of showers and thunderstorms continue to move across the region this morning along a cold front, stretching from near KLFK to KMLU. Fog is also expected to develop across the taf sites after 28/06z as the cold front moves back north as a warm front. /issued 634 AM CST Tue Dec 27 2016/ This morning the cold front had shifted into North Central Louisiana and extended Southwest to near Mansfield Louisiana and Nacogdoches Texas and to the Big Bend area of West TExas. The upper trough of low pressure that was providing a push to the cold front has become broad and the front will shift to near the Gulf Coast by this evening. Patchy fog and light rain or drizzle will move into the region with the warm front.
Ridging aloft along with modest southeast winds will bring another warm day to the valley on Wednesday.
335 AM CDT WED SEP 14 2016 Upper ridging will move across the forecast area today, helping to bring a fairly benign day weather wise to this area. Because of this, do not have high temperatures any warmer in our far south when compared to our northern zones. Tonight, a well advertised upper trough of low pressure will continue to move slowly eastward centered generally over the Rockies. Ahead of this trough, a leading short wave will eject northeastward into the central plains and into our forecast area late tonight. In addition, it is very stable in the lowest 3km of the atmosphere, with conditional instability existing above 700mb. With the lack of deep moisture profile, as well as unfavorable instability in the lowest 3km, likely pops are not warranted yet for the tonight period.
The pattern aloft featured southwest flow across the central plains ahead of a close low pressure system in CA. At the surface, the cold frontal boundary was located to our south across southeast Kansas. The western upper low pressure system moves into the north central Rockies Wednesday night and lift increases across the plains in increasing dynamics ahead of the approaching system.
147 AM EDT WED SEP 14 2016 An area of low pressure over quebec will continue to move eastward overnight. This will allow a cold front to sag southward across the region on Wednesday.
1112 PM MDT TUE SEP 13 2016 20z surface analysis had high pressure over the Dakotas. Water vapour loop showed upper low over NV with weak ridging developing ahead of it over the Plains states. This upper low will be the main weather concern in the short term. Wednesday, upper low moves into southwest MT with lee trough / low developing over WY. Wednesday night, upper low lifts out as weakening upper trough.
429 AM CDT WED SEP 14 2016 Today through Thursday night, Anomalous ridging over the ArkLaMiss region will maintain anticyclonic flow and general subsidence, thus limiting diurnal shower/thunderstorm coverage for most of the forecast area.
This evenings upper air analysis showed a closed upper level low pressure system over the Great Basin.
637 AM EDT WED SEP 14 2016 A weak cold front crosses tonight. High pressure passes to the north Thursday.
Low pressure over southern Idaho is ushering precipitation northward this morning which according to radar should extend into much of Lemhi county during the morning and into southwest Montana (vicinity of Butte) toward noon. The rest of the Northern Rockies will be under the influence of high pressure.
401 AM CDT Wed Sep 14 2016 Today is a transition period and will be quiet with temperatures about 10 degrees warmer than yesterday.
523 AM EDT Wed Sep 14 2016 A cold front will bring scattered showers and thunderstorms to the region today. A cold front will cross the region today, bringing the chance of rain back into the forecast. This portion of the forecast should be dry with high pressure across the region.
420 AM EDT WED SEP 14 2016 A weak cold front crosses tonight. High pressure passes to the north Thursday.
438 AM EDT WED SEP 14 2016 A cold front over the Eastern Great Lakes this morning will pass through the area late this afternoon into early this evening.
126 AM EDT WED SEP 14 2016 A weak cold front crosses tonight. High pressure passes to the north Thursday. Next cold front arrives this weekend. Models continue to differ somewhat on a cold front that slips southward through the forecast area. with high pressure passing by to our north. Both the NAM and GFS have an inverted trof near our mountain counties Thursday.
238 AM EDT WED SEP 14 2016 Moisture will slowly increase over Pennsylvania tonight in southerly flow ahead of a weak cold front, which will push southeast across the region late Wednesday into Thursday morning.
144 AM EDT WED SEP 14 2016 Moisture will be directed into the forecast area in the easterly flow between high pressure off the Mid-Atlantic coast and Tropical Storm Julia through much of the week. Satellite shows an impressive low pressure system lifting northward along the northeast coast of Florida with well defined convective bands spiraling around the center. Showers remain across the low-country just east of the cwa. The GFS and ECMWF indicate high moisture through much of the medium-range period associated with a long-fetch easterly flow south of pressure ridge off the east coast and some troughing lingering near the southeast coast.
Upper low over the Great Basin expected to lift northeast into the Dakotas through the end of the week. Models in general agreement with bringing the low across eastern Montana tonight before moving it into North Dakota by Thursday afternoon. Showers across southern Idaho and Wyoming will slowly spread north today as the low advances. As the low begins to move east on Thursday and flow turns north, dry air will be pulled out of Canada into eastern Montana.
226 AM EDT Wed Sep 14 2016 High pressure will drift east while a cold front moves into the region this morning. Cooler and drier air will return for this afternoon through Thursday.
326 AM EDT Wed Sep 14 2016 Upper level wise the period will begin more zonal overall and transition to a more subtle ridging pattern by Thursday. This as a ridge axis across the Plains and Midwest progresses east.
An area of rain will rotate cyclonically around an upper level low centered in south central Idaho this morning. The low will move northeastward today and will be out of the area on Thursday. Cooler temperatures will continue today, especially in areas where it is raining.
615 AM EDT Wed Sep 14 2016 A cold front will bring scattered showers and thunderstorms to the region today. A cold front will cross the region today, bringing the chance of rain back into the forecast. This portion of the forecast should be dry with high pressure across the region.
The upper level low that brought unseasonably cool conditions to our inland areas today is now moving southeastward out of California into southern Nevada. Dry conditions and a gradual warming trend are expected for the remainder of the week as high pressure aloft slowly builds over the eastern Pacific.
433 AM EDT Wed Sep 14 2016 A cold front will move through the region today. High pressure and dry conditions will be in place for Thursday. As a weak cold front moves through the area today, isolated to scattered shower and thunderstorm activity will develop. Dry conditions and high pressure will be in place for Thursday.
235 AM EDT WED SEP 14 2016 A strong cold front will sweep across the area today then slide offshore by early evening.
1206 AM CDT WED SEP 14 2016 Cold front is currently located roughly along a KTOP to KDVN line as of 1900 UTC. This area has weakened slowly throughout the daylight hours as the low-level jet has faded considerably. Leaned a bit toward the NAM/ECMWF as the low-level baroclinic zone so far today has been slower to progress than earlier anticipated by model guidance. leaned aob the cooler MAV guidance for Wednesday's high temperatures across the northwestern half of the CWA where highs should stay within the 70s.
Water vapor imagery and 14/00Z upper-air plots show the upper low spinning over northeast Nevada with the trough axis extending into southern California. A couple of swaths of dry mid to upper level air can be seen south of this low, with one over much of northern and central California and into northwest Arizona, while another narrow swath covers the eastern Pacific waters and into extreme southern California and the northwest half of Arizona. As the aforementioned upper low continues to move northeast into the northern Rockies late today, expect this drier air to our west to move into Arizona.
Tropical Storm Julia to our southeast actually may help briefly to bolster the ridge aloft just over our south, providing some subsiding air.
319 AM EDT WED SEP 14 2016 The surface cold front, better described as a surface wind shift boundary, has pushed through southern MI as of 07Z. Northerly flow in the wake of the front will usher in cooler airmass through the afternoon hours. This should result in highs only in the low 70s today but will also lead to increasing low level lapse rates as diurnal heating kicks in. Mid level ridge will then move over lower MI Wednesday night into Thursday bringing sunny but cooler weather to end the work week.
Southwest Oregon and northern California will be on the back side of an upper level low pressure system moving through Idaho today. This will keep most of us on the cool side of normal with highs in lower 80s for the west side valleys and in the lower 70s over the east side.
SHORT TERM (Today through Thursday): An inverted 500 mb ridge and associated surface troffing located in the central Gulf of Mexico will move steadily westwards today and Thursday. As this trough approaches the TX coastline the atms moisture levels will steadily increase. The increasing troffing and moisture values will interact with daytime heating effects to increase the potential for convection mainly during the afternoon and evening hours. The GFS also picks up on the 500 mb troffing over the Gulf of Mexico but holds off on the degree of moisture advection over the RGV. As the 500 mb ridging erodes a bit over the area with the mid level troffing steadily increasing. Expect temps to trend a bit cooler through today and tomorrow as the moisture levels and cld cover increase.
The highest coverage is expected to be near VLD, ABY, and TLH. An area of low pressure along the northeast Florida coast this evening was slowly lifting northward. The low is moving north-northwestward and is expected to continue this slow movement across the eastern FL Peninsula into SE GA through Wednesday night.
453 AM CDT Wed Sep 14 2016 Weak ridging remains anchored over the state, with the highest moisture ridging up over the western edge of the forecast area.
Dry weather with warm daytime temperatures are expected across the interior through the week as high pressure builds over the region. Northerly flow aloft on the backside of an upper low continues to bring subsidence and clear skies to the interior. A gradual warming trend is in store this week as the upper low shifts east and ridging builds over the west coast.
353 AM CDT WED SEP 14 2016 Latest water vapor imagery and RAP analysis shows large mid-upper level low centered over the Great Basin. Uncertainty remains on coverage of showers and thunderstorms late Thursday morning and how much destabilization can occur toward peak heating ahead of the approaching cold front. Strong to severe storms are not out of the question late Thursday afternoon across central Nebraska and into our western counties which could then spread east across the entire forecast area Thursday night as the cold front slides east overnight.
306 AM CDT WED SEP 14 2016 Temperatures running a few degrees warmer than 24 hours ago. Upper level high pressure from the Plains to the Mid Atlantic Coast will keep temperatures well above normal.
448 AM EDT WED SEP 14 2016 Limited moisture will stream northeast from the Ohio Valley today ahead of a weak cold front, which will push southeast from the Great Lakes and cross the region this afternoon and evening.
329 AM EDT Wed Sep 14 2016 A cold front will bring scattered showers and thunderstorms to the region today. A cold front will cross the region today, bringing the chance of rain back into the forecast. This portion of the forecast should be dry with high pressure across the region.
335 AM CDT WED SEP 14 2016 Rather impressive upper level low pressure system is centered across Nevada early this morning per water vapor imagery. Models in agreement that little drying will take place lower levels of the atmosphere today, and expect the lower cloud deck to stick around much of the day. The lower clouds will eventually spread into northern Nebraska tonight as a strong southerly low level jet develops and rapidly transports moisture northward. The exception will be across northwest Nebraska, where a few more breaks in the clouds should allow for highs to reach the lower 70s. The trough will be responsible for sending a cold front across the cwa Thursday as well. and increasing large scale forcing associated with the trough will provide for the possibility of scattered to widespread showers and thunderstorms.
505 AM EDT WED SEP 14 2016 A cold front will cross the area today then move east tonight.
Temperatures this afternoon were meeting the expected cooler highs, despite the extensive cloud cover. Overall however the week will remain just on the cool side of normal for mid September highs, with a warm day on Thursday in the lower 80s.
406 AM CDT WED SEP 14 2016 The short term begins with high pressure sitting over the forecast area building from the north. However, severe weather looks very limited at best due to lack of forcing, poor midlevel lapse rates, and a capping inversion in the lower levels. Currently, forecast highs are only going to reach the lower to mid 60s across the local area.
343 AM CDT WED SEP 14 2016 A weakening cold front across central and northeast Oklahoma will continue to become more and more diffuse with time.
352 AM CDT WED SEP 14 2016 A weak frontal boundary extended from just west of Tulsa OK to just southeast of Bowie and Breckenridge to just south of Sweetwater as of 3 AM. An upper level low currently over the Great Basin will move northeast into the northern Plains by tomorrow while a large trough will hang back across the western U.
Morning lows, however, will be cold with the potential for freezing temperatures tonight. The warm and dry weather will likely come to an end sometime this weekend as a cold front moves through the region. WIDESPREAD FREEZING TEMPERATURES NORTHERN MTN VALLEYS AND Skies are clear and winds light as weak high pressure lingers over the region. New model guidance indicates the idea of warmer temperatures and dry relative humidity through the week is still the way to go. Tobin 06Z TAFS: No changes to the forecast as high pressure will dominate the weather for the next few days. The exception will be a little stronger northwesterly winds along the lower east slopes of the Cascades for KEAT around 00z but the winds should remain below 10kts.
High pressure will build into the region on Thursday for dry weather along with a warming trend through the weekend. Upper low centered over Elko county early this morning will bring isolated to scattered showers today to northeast NV along with a few thunderstorms. Upper low pulls out to the northeast tonight with upper ridge building into the area Thursday. With clearing skies tonight most areas will see lows in the 30s, with freezing temperatures in some of the colder valleys.
/Issued 823 PM EDT TUE SEP 13 2016/ Low pressure continues across northern Florida this evening. Precip coverage in the far SE will depend heavily upon the track of the low center. /Issued 340 PM EDT TUE SEP 13 2016/ Latest regional surface analysis shows high pressure continues offshore the mid Atlantic coast with subtle ridging continuing through east central GA. Of more concern however the is the persistent circulation along the NE Florida coast which along with the high is maintaining a strong onshore flow and allowing copious amounts of moisture to move into the area.
Little change in the weather pattern through the short term with a ridge of high pressure in control.
624 AM EDT WED SEP 14 2016 A strong cold front will sweep across the area today then slide offshore by early evening.
648 AM EDT Wed Sep 14 2016 A cold front will move through the region today. High pressure and dry conditions will be in place for Thursday. As a weak cold front moves through the area today, isolated to scattered shower and thunderstorm activity will develop. Dry conditions and high pressure will be in place for Thursday.
Late this afternoon and into the evening scattered rain showers will gradually diminish in coverage as a trough axis moves southeastward into the central Great Lakes. Behind the trough, high pressure will build in from the Dakotas. Skies will be sunny across the Northland on Wednesday with high pressure in place over MN. The ridge will move east allowing a southerly flow to develop pushing in warmer air along with increasing moisture. An area of low pressure will move through the Northern Plains on Thursday and Thursday night.
Upper low pressure system over the eastern Great Basin continues to move eastward with high pressure building in over the west coast. Building high pressure is bringing clear skies to the forecast area and satellite fog product shows minimal stratus along the coast so not expecting stratus intrusion through the delta this morning.
634 AM EDT WED SEP 14 2016 A cold front will cross the area today then move east tonight.
306 AM CDT WED SEP 14 2016 Southwesterly flow aloft will continue through the remainder of the week and into the weekend as upper level troughing remains a fixture across much of the western half of the nation.
200 AM EDT Wed Sep 14 2016 High pressure and a dry airmass will depart east tonight. A cold front will bring a chance of showers and thunderstorms on Wednesday.
As the mid levels dry, the low levels moisten a little due to east winds and moisture off Lake Michigan that gets trapped below a developing inversion at 850 mb. Overall the weather should be quiet with increasing clouds out ahead of low pressure approaching from the Northern Plains. These showers would be from a proposed lake effect rain band that shifts from mid lake to into southeast WI with return flow around the high. Temperatures will be a little warmer than today, with highs in the lower to mid 70s.
will be a quiet TAF period with a ridge of pressure in control.
321 AM CDT SUN MAY 8 2016 AN AREA OF HIGH PRESSURE ACROSS THE UPPER MISSISSIPPI VALLEY WILL RESULT IN MILD AND DRY CONDITIONS. THIS HIGH PRESSURE GRADUALLY MOVES EAST INTO THE OHIO VALLEY THROUGH THE DAY. AND AS IS THIS HAPPENS A LIGHT EAST WIND WILL DEVELOP BY THE LATE AFTERNOON RESULTING IN COOLER TEMPERATURES BY LAKE SUPERIOR. A VERY WEAK COLD FRONT DROPS SOUTH ACROSS NORTHERN MINNESOTA THIS AFTERNOON RESULTING IN A SUBTLE WIND SHIFT. BASICALLY RELYING ON THE WARM FRONTAL FORCING. KEPT CHANCES ON THE LOW SIDE THROUGH MONDAY AFTERNOON.
THE HIGHEST CHANCE OF THIS OCCURRING LOOKS TO BE IN NW PARTS OF THE FA WITH LESS ACTIVITY FURTHER SOUTH ALONG THE DRYLINE.
THE LARGE UPPER LOW TO OUR SOUTHEAST IS STILL IMPACTING OUR WEATHER. THROUGH THE LOWER TREASURE VALLEY OF OREGON. SHOWERS AND STORMS WILL BE ISOLATED TO SCATTERED OVER THE EAST THIS AFTERNOON AND EVENING AS THE UPPER LOW WEAKENS AND DRIFTS SLOWLY EAST.
628 AM EDT SUN MAY 8 2016 A FRONTAL BOUNDARY WILL STALL OUT FROM THE LOWER OHIO VALLEY TO THE CAROLINAS TODAY WHILE WEAK HIGH PRESSURE AT THE SURFACE MOVES ACROSS OUR REGION. THE FRONTAL BOUNDARY WILL SLOWLY WORK ITS WAY NORTH AS A WARM FRONT INTO THE MIDDLE OHIO VALLEY ON MONDAY. A COLD FRONT WAS JUST SOUTH OF THE CWFA EARLY THIS MORNING. THE COLD FRONT WILL STALL OUT FROM THE LOWER OHIO VALLEY TO THE CAROLINAS WHILE HIGH PRESSURE AT THE SURFACE MOVES ACROSS OUR REGION. HIGH TEMPERATURES WILL VARY FROM THE LOWER 60S WHERE CLOUDS AND THE THREAT OF PCPN IS EXPECTED.
343 AM EDT SUN MAY 8 2016 A BACKDOOR COLD FRONT WILL MOVE SOUTH THROUGH THE AREA TODAY. IT WILL MOVE BACK NORTH AS A WARM FRONT MONDAY NIGHT.