Aikyam-Lab/Synoptic-Bench huggingface dataset:
Large scale mid level ridging will initially extend northwest from north central Mexico to the Pacific Northwest. The ridge position will not change much over the short term, resulting in fair weather trends. Look for mostly cloudy skies and high temperatures in the lower to mid 90s for most inland areas, with 80s near the coast. Overnight low temperatures will be mainly in the lower 70s under mostly cloudy skies. High temperatures will again be mainly in the lower to mid 90s inland and in the 80s near the coast.
550 AM CDT FRI MAY 13 2016 Upper blocking pattern consists of a ridge in the western United States and a trough in the eastern United states, with northwest flow aloft here. A cold front is on its way from the north this morning and should sweep through most of the CWA during the morning. The cooler air lingers into Saturday night, but temperatures moderate a little and should be warm enough to keep frost at bay.
621 AM EDT FRI MAY 13 2016 A cold front will cross the area today with showers and thunderstorms along and ahead of the front. High pressure will build into the region this evening along with cooler and drier air. A dry front will move through the region saturday evening with additional cooler air behind the front.
Meanwhile, a recently re-established low level southerly flow will begin to slowly draw moisture up into central and portions of southwest Kansas with surface dewpoints climbing well into the 50s(F) ahead of the approaching cold front. As for temperatures, cooler air will filter into western Kansas with highs this weekend only reaching to around 60 degrees.
333 AM EDT FRI MAY 13 2016 A strong cold front will move across the forecast area tonight ushering in much below normal conditions. The cold front just exiting the forecast area. Will see some sun breaks this afternoon but temps will still top out about 10 degrees cooler than ydy. Models in good agreement dropping arctic cold front. At the upper levels deep upper trough digs over the NERN states. Temps will hover in the lower to mid 50s all day.
323 AM EDT FRI MAY 13 2016 A cold front crossing pre-dawn today. A reinforcing cold front crosses Saturday morning.
347 AM MDT FRI MAY 13 2016 High pressure centered over the Great Basin will be shifting east over the next 48 hours with the ridge axis centered over Western Colorado by late Saturday afternoon. Expect another dry day today with subsident flow on eastern flanks of the approaching ridge. As the ridge slides overhead on Saturday. expect to see a subtle increase in moisture with a few showers and high based storms developing over the higher terrain. Guidance temps showing a little spread today and will side with the warmer MET numbers.
503 AM EDT FRI MAY 13 2016 A cold front will cross the area today with showers and thunderstorms along and ahead of the front. High pressure will build into the region this evening along with cooler and drier air. A dry front will move through the region saturday evening with additional cooler air behind the front.
Near the surface, an area of high pressure is sinking southward across southern Kansas and northern Oklahoma. A dome of high pressure will continue to slide eastward tonight shifting winds to the southwest by this evening. This will help push a cold front through the area tomorrow afternoon. Mostly clear skies are expected tomorrow with the exception of along the cold front tomorrow afternoon where increase cloudiness will be possible. As for temperatures, lows tonight look to generally be in the lower 50s with the exception of west central Kansas where upper 40s may be reached. As for temperatures, cooler air will filter into western Kansas with highs this weekend only reaching to around 60 degrees.
the incoming air mass is fairly cold so sub-freezing temps are not out of the question.
A ridge extending to central Florida overnight from the central Atlantic, will shift eastward today. Meanwhile, a trough extending from the Hudson Bay/northeast US to the southeast US will continue to move east.
Today will be dominated by gusty north winds as a secondary cold front which has entered northeastern ND makes it way south early this morning. Even with clouds remaining the strength of the cold air will allow temperatures to drop to below freezing. A little warmer but still well below normal.
607 AM EDT FRI MAY 13 2016 A strong cold front will move across the forecast area tonight ushering in much below normal conditions. The cold front just exiting the forecast area. Will see some sun breaks this afternoon but temps will still top out about 10 degrees cooler than ydy. Models in good agreement dropping arctic cold front. At the upper levels deep upper trough digs over the NERN states. Temps will hover in the lower to mid 50s all day.
A cold front will be moving across the area by early Friday. this cold front has a decent amount of cool air behind it. Lows Friday night will be cooler.
Out ahead of this activity, high pressure continues to bring gorgeous weather into NY and northeastern PA. Temperatures near 80 will fall into the lower 70s around sunset. In between fronts, surface ridging will allow for drying conditions and clearing skies for a brief period Friday night.
A cold front will move east into Ohio this evening putting an end to the showers and thunderstorms. the respite will be brief as another cold front will bring widespread showers and isolated thunderstorms to the area Friday night. Canadian high pressure behind the cold front will usher in a dry but unseasonably cool remainder of the weekend.
120 AM EDT FRI MAY 13 2016 Clouds will decrease from west to east overnight as cooler and drier air moves in behind a cold front pushing through the lower great lakes. highs on saturday will only be in the upper 40s near lake michigan to the lower 50s inland. chances for frost and possible freezing temperatures Saturday night. The upper level support was lagging a little behind the cold front as a 2nd upper level system was ejecting northeast across southern Indiana. Another upper level system and associated cold front will move across the area Friday night.
Northwest flow aloft will dominate the pattern through mid week when the upper flow shows more of a transient ridge.
The cold front was near Jasper as of 2 AM and will continue to track SE across the remainder of the forecast area early this morning and will usher in drier but only slightly cooler air. Lows tonight will fall into the low/mid 50s. If you like cooler temps and less humid conditions, then just wait until this weekend.
Light and variable winds through sunrise will become west to wnw through the day ahead of an approaching cold front. Cold front to move over the Gulf with NW winds in the 10-15 kt range to bump seas into the 2-3 ft range. High pressure to strengthen a bit for increase in easterly winds and seas Tue/Wed.
This disturbance will deepen an existing trough such that it eventually extends over the northeastern one-quarter of the CONUS. The cold front pushes through the region tonight. Kanofsky Northwest flow aloft will continue on Sat/Sun with a high pressure center at the surface moving into the region.
Cold front passed through the area earlier today and showers developed in the wake of the front's passage. Upper-level trough continues to move through MT tonight. An upper level low pressure trof is over British Columbia and an associated cold front, currently moving through he central zones, will continue through Southwest Montana. An upper level ridge will be over the Pacific Northwest Friday with unsettled northwest flow aloft over the zones. The ridge will be over the Rockies Saturday but, despite the sun, temperatures will be slow to recover and remain nearly 10 degrees below seasonal normals.
245 AM EDT FRI MAY 13 2016 High pressure will slide offshore today as a cold front approaches from the west.
322 AM CDT FRI MAY 13 2016 A mid-level upper trough was moving through Kansas early this morning. The ridge passes this evening and southwest boundary layer flow develops. Surface flow from the north will aid in keeping temperatures much cooler than recently seen, with highs in the low 60s. With time to cool before clouds move in, lows are still expected to be in the low 40s, even lower in far northeast Kansas where cloud cover will not be as prominent.
404 AM CDT FRI MAY 13 2016 The cold front or whats left of the cold front is currently moving through the forecast area.
These were forming along the cold front. Drier and less humid conditions are on tap for this weekend as high pressure builds in.
1204 AM CDT FRI MAY 13 2016 Updated for the 06Z Aviation Discussion Cold front is pushing across Northeast Mississippi attm. Much drier air is filtering into northwest sections of the Mid-South where dewpoints have dropped into the lower 50s. SJM A cold front moving through northeast Arkansas will move through the rest of the forecast area late this afternoon and evening. A cooler and drier airmass will be in place Friday and Saturday with Saturday cooler than Friday.
345 AM EDT FRI MAY 13 2016 High pressure will move across the area today providing fair weather with highs in the 60s. A cold front will drop rapidly accompanied by showers and possibly a few thunderstorms.
On Saturday night, another cold front crosses the area bringing more rain showers this weekend. Cold front moves west to east across our forecast area during the daytime hours on Friday. Temperatures will again be warm ahead of the cold front on Friday. Active period of weather anticipated across our region with development of deep/closed 5h trough and associated potent 5h vort and secondary surface cold front crossing our forecast area.
A cold front that moved through the area yesterday has begun to wash out with southeasterly winds returning this morning. Aloft, ridging was building to our west with northwesterly mid level flow developing across our area. Models indicate a very unstable airmass this afternoon, however there won't be much of a trigger for convection other than the higher terrain. Meanwhile, a cold front will sink south across the TX Panhandle tonight with more showers and thunderstorms developing along this boundary.
Meantime, look for a nice Friday coming up as bubble high pressure zips through, bringing sunshine and mild temps in the 70s to locations. A fast moving cold front will move southeast through the region tonight, and will usher the much cooler air in from the northern Plains. As the Canadian high pressure system drops southeast into the mid Ms River Valley Saturday night, gusty northwest winds will subside and skies should remain clear, esp east of the Ms River.
Visibility may dip to MVFR, but the low cloud deck may prevent dense fog from forming.
1136 PM MDT THU MAY 12 2016 An upper level ridge over the West Coast states will shift east over to over Utah by Friday night. Attendant with the ridge axis will be increasing temperatures at the surface and aloft. There is an outside chance of an isolated shower or thunderstorm over the higher terrain Friday afternoon. but subsidence in advance of the ridge should prohibit greater coverage. High temperatures Friday will be 5 to 10 degrees warmer than today.
A cold front will move through the Guymon and Dalhart TAF sites around 19Z to 21Z today shifting the winds to the north and northeast 15 to 25 knots with gusts near 30 knots. and then the cold front will push across the Amarillo TAF site around 23Z today to 01Z Saturday. Some models want to take most of the convection south of our area with the cold front, while others want to develop elevated storms north of the front. At this point it looks like there may be a lull in the showers and thunderstorms during the day on Saturday as upper level heights rise with a short wave ridge moving over.
The front may become more cold frontal and dip slightly southward later this morning remaining very weak. For Saturday we should remain dry aside from any left over outflow boundaries, weak cold front, well to our north that try to push southward.
645 AM EDT FRI MAY 13 2016 Cold front exits east this morning. A reinforcing cold front crosses Saturday morning.
This weekend will feature unsettled weather and much cooler temperatures. Frontal boundary just recently passed through PIT and should be in or east of the ridges by 12Z. CL Periodic precipitation and much cooler temperatures expected through the weekend. The cold front will quickly shift east of the area Saturday with cooler air pouring in behind it. Although the main focus of the rain showers will exit east with the front, rapid cold air advection will steepen the low-level lapse rates, fueling additional showers and prolonged cloud cover through Saturday evening. With the upper-level trough axis east of the area Saturday night, deep northwesterly flow will continue to reinforce the arrival of relatively cold air.
Meanwhile, a recently re-established low level southerly flow will begin to slowly draw moisture up into central and portions of southwest Kansas with surface dewpoints climbing well into the 50s(F) ahead of the approaching cold front. Precip chances dwindle Saturday as much drier air filters southwest into western Kansas behind a cold front plunging further south into north Texas.
133 AM EDT FRI MAY 13 2016 An approaching cold front will cross the forecast area Friday morning. Another cold front with little moisture will cross the area Saturday. Drier and cooler air will overspread the region for the weekend.
345 AM CDT FRI MAY 13 2016 Ridge over the west and east coasts at H5. Closed low over the Arrowhead of Minnesota with a trough into the Ohio Valley. Upper low over Northern Minnesota will retrograde today and push a cold front through Nebraska through the day. with upper jet dynamics and upslope flow this evening slight chance showers temperatures falling into the low 30s from the interstate 80 corridor north to the Dakota border by morning. Yesterdays lows had LBF at 31 and 850mb temperatures 5C cooler Saturday morning.
An upper low over the Eastern Pacific will slide toward the area over the next 24 hours, and by this time tomorrow, will lie just offshore of Southern Oregon and Northern California. A southerly flow will set up ahead of the upper low with marginal instability late this afternoon and into this evening. Elevated instability continues through the night over areas west of the Cascade crest, precipitable water rises to over an inch, and a rather potent, negatively tilted, upper trough will provide dynamic forcing that may induce some showers and thunderstorms overnight. The upper low will move onshore around noon on Saturday. It will be much cooler across the entire area inland from the coast with temperatures 15-25 degrees lower than on Friday.
The cold front that helped bring the northern half of the region thunderstorms late yesterday (and has continued to produce isolated showers and storms overnight) continues to make good progress through the region at this hour. A few low clouds or patches of fog may be found at daybreak (mainly across southern Mississippi) but expect by midday skies will be mostly sunny with north winds bringing down slightly cooler, but definitely drier, air. On Saturday the sharp and anomalous upper trough over northeast quadrant of the United States will bring in a dry, reinforcing cold front into at least northern portions of the region as upstream "split-flow" energy starts to import some higher clouds our direction.
A sfc cold front was rapidly moving southward across the forecast area and at 08Z it was located generally along a line from near Pine Ridge to Chamberlain. Clouds will clear from n-s during the day as subsidence develops behind the departing upper system and cool dry high pressure moves in at the surface. Saturday will be dry and cool with highs mainly in the lower to mid 50s, slightly cooler in the Black Hills.
On Saturday night, another cold front crosses the area bringing more rain showers this weekend. Cold front moves west to east across our forecast area during the daytime hours on Friday. Temperatures will again be warm ahead of the cold front on Friday.
This trough will be draped from southeastern New Mexico into the eastern Texas Panhandle by late this afternoon and also ahead of a strong front. This cold front will be the primary driver of convective development during the overnight hours.
this will be short lived as another cold front will drop south through the state late tonight into Sat morning. with another shot of cooler and drier air to the state.
This weekend will feature unsettled weather and much cooler temperatures. CL Periodic precipitation and much cooler temperatures expected through the weekend. The cold front will quickly shift east of the area Saturday with cooler air pouring in behind it. Although the main focus of the rain showers will exit east with the front, rapid cold air advection will steepen the low-level lapse rates, fueling additional showers and prolonged cloud cover through Saturday evening. With the upper-level trough axis east of the area Saturday night, deep northwesterly flow will continue to reinforce the arrival of relatively cold air.
327 AM EDT FRI MAY 13 2016 A cold front crossing pre-dawn today. A reinforcing cold front crosses Saturday morning.
An area of low pressure will move into far northern California on Saturday morning, deepening the marine layer further and resulting in coastal drizzle late Friday Night and Saturday Morning and possible light showers in the North Bay.
437 AM CDT FRI MAY 13 2016 Upper blocking pattern consists of a ridge in the western United States and a trough in the eastern United states, with northwest flow aloft here. A cold front is on its way from the north this morning and should sweep through most of the CWA during the morning. The cooler air lingers into Saturday night, but temperatures moderate a little and should be warm enough to keep frost at bay.
415 AM EDT FRI MAY 13 2016 A cold front will move slowly east from the eastern Great Lakes today and will move through the north country late this afternoon and tonight. This cold front will bring rain showers to the north country today and early tonight. Another cold front will approach from the Great lakes on Saturday, and will bring more rain showers to the north country Saturday afternoon and Saturday night.
The 12 UTC global suites are in agreement on cold high pressure building across the Northern Plains tonight through Friday. An anomalously cold airmass is associated with this high with 850 mb temperatures on the 00 UTC NAEFS ensemble mean falling to their lowest 1 to 2. Widespread lows in the lower to mid 30s are expected along and north of ND highway 200, and have issued a frost advisory for these areas.
431 AM CDT FRI MAY 13 2016 Satellite imagery this morning shows a large trough in place across much of eastern Canada with its axis currently sweeping east through the Ohio River Valley. Add in a little frontogenic lift from the rapidly advancing cold front along with the tongue of moisture, and thunderstorms look likely to develop this afternoon as it pushes into northern Missouri. Additionally, there will be a decent 35 to 45 knot southwest H8 jet streak ahead of the trough as it moves through, thus resulting in 0-6KM shear values in the 40 to 50 knot range.
1208 AM CDT FRI MAY 13 2016 Expect a clear sky tonight with cool high pressure building into the area. A cold front will race southeastward into around central MO by 00z. Saturday will likely be more dry than not with cool high pressure building into the area. South to southwest winds will increase Friday while a cold front approaches from the north later Friday.
229 AM CDT FRI MAY 13 2016 Cold front pulling off plateau at 07z with much drier air working into the area from the northwest. There will be a cold front to move down in the northwest flow today that will pass through Middle Tennessee late tonight and early Saturday but it looks like it will remain dry as it moves through except for the Upper Cumberland where a sprinkle or brief light shower is possible.
Models also trending toward holding the higher QPF along/south of I-90.
201 AM CDT FRI MAY 13 2016 The cold front that brought the rain earlier is now mostly through the cwa with a weak NW flow behind it. The upper wave supporting the front will move through today with the parent upper low remaining NW of the Great Lakes. Otherwise, today should be dry and sunny with cooler temps in the upper 70s. The previously mentioned parent low will shift southeast tonight and drag a reinforcing cold front through the area overnight and through the day on Saturday. Highs, albeit cooler, will still be able to rise into the middle 70s before the cooler air pushes in during the evening hours. This, combined with clearing skies briefly overnight, will drop lows into the lower 40s to near 50 which is about 10 degrees below normal for this time of year.
1126 PM MDT THU MAY 12 2016 19Z Water vapor imagery indicated weak short wave ridging in place across the area. although RAP analysis of dynamic tropopause indicates a small scale trough entering into eastern Colorado. While I do not think there will be a strong response to trough in the afternoon, have noticed an area of enhanced cumulus clouds along small convergence zone which may be a reflection of approaching trough. cold front will slide south over the area bringing gusty northerly winds and cooler temperatures. Friday night-Saturday: The cold front should be south of our cwa by Friday evening with CAA through Saturday. The combination of lingering cloud cover and a much colder air mass will lead to highs 10-20F cooler (50s to near 60F).
Warm, windy, and dry today, and for the most part tomorrow before unsettled and cooler weather returns by Saturday night.
A cold front has moved south of the forecast area early this morning taking most of the rain showers with it. High pressure will build into eastern montana today which will gradually clear the skies during the day. look for mostly clear skies with somewhat warmer temperatures.
/Today/ A vigorous mid/upper level trough will swing across the upper Midwest today, forcing a notable shift in sensible weather across Iowa.
300 AM CDT FRI MAY 13 2016 High pressure is sliding south across the Southern Plains early this morning, with rather cool and decidedly less humid conditions over the area. Slightly higher dewpoints will begin to advect in across Kansas and northern Missouri by afternoon, resulting in a ribbon of CAPE ahead of an approaching cold front. That front will then usher in a much cooler airmass for the overnight hours tonight, with lows likely falling into the 40s by Saturday morning.
/issued 339 PM EDT THU MAY 12 2016/ High pressure over the Western Atlantic waters will weaken through Friday allowing for a cold front over the Central United States to move southeast into the Southeast United States. The cold front will continue to move down the sunshine state on Saturday and through South Florida Saturday night.
A quick building ridge of high pressure west of the Northern Rockies will help suppress shower activity today through the first part of Saturday.
High pressure currently in the central plans will push the front through the remainder of the state tonight and low end pops will be held on over the south as a result. Aforementioned high pressure will build over the region tonight and dominate through Friday for dry and warm conditions.
HIGH PRESSURE CONTINUES TO PREVAIL. Large scale mid level ridging will initially extend northwest from north central Mexico to the Pacific Northwest. The ridge position will not change much over the short term, resulting in fair weather trends. Look for mostly cloudy skies and high temperatures in the lower to mid 90s for most inland areas, with 80s near the coast. Overnight low temperatures will be mainly in the lower 70s under mostly cloudy skies. High temperatures will again be mainly in the lower to mid 90s inland and in the 80s near the coast.