Aikyam-Lab/Synoptic-Bench huggingface dataset:
Otherwise, cold frontal boundary still expected to impinge the Four-State Region tomorrow aftn/evening, resulting in chances for isolated to scattered rain showers. /issued 614 PM CST Wed Jan 31 2018/ Gusty south winds this aftn will only gradually decrease this eve to around 10 kts as pressure gradient invok approaching cold front remain in place. After 01/15z scattered decks with ocnl high mvfr to low ifr cigs until late aftn cold front results in quick wshft from nw-n.
The responsible cold front has moved east of Billings to a Harlowton to Columbus line. Snow showers will continue through the evening as the cold front pushes south and west, gradually decreasing late tonight. Snowfall totals of generally an inch or less can be expected over the lower elevations with a few inches possible over the mountains.
1023 PM EST Wed Jan 31 2018 High pressure off the Southeast Coast will dominate through Thursday.
Cold front continues to move southeast through the area. /issued 357 PM CST Wed Jan 31 2018/ The cold front that moved across northwestern and west central Oklahoma this morning has become nearly stationary this afternoon.
433 PM MST Wed Jan 31 2018 Dirty northwesterly flow is well established over eastern Utah and western Colorado this afternoon as a weak cold front passes over the northern half of the forecast area. Still, given the increased clouds, daytime highs further north are trending slightly cooler today. As the previous forecaster anticipated, areas along and south of the I-70 corridor have been trending warmer with the most impressive 24 hour jump occurring at Gunnison, Colorado - who, as of 1 PM, was sitting at 50 degrees. 18 degrees warmer than this time yesterday. Overnight lows tonight will be several degrees warmer given the lack of radiational cooling. The overall intensity of showers should remain on the light side with no hints of any sort of banding yet on the high resolution models.
/issued 339 PM EST Wed Jan 31 2018/ An area of high pressure moving into the western portion of the Atlantic will continue to dominate the weather across South Florida for tonight and tomorrow. The region will remain on the southern side of the high pressure which will allow for the easterly flow to continue. Low temperatures will range from the upper 40s across the the northwestern interior to the lower 60s across the east coast metro areas.
A strong cold front has delivered much colder temperatures across the northern and central Montana today, along with areas of spotty snow showers.
1051 PM EST Wed Jan 31 2018 Along the island chain, skies are mostly clear to partly cloudy with temperatures in the lower to mid 60s. Surface wise, a weakening western Atlantic ridge axis extends across north Florida and well into the Gulf of Mexico. Despite winds turning northeast to east with slight moistening below 850 mb, a deep tropospheric anticyclone centered over the Southeast Gulf of Mexico will move eastward maintaining strong subsidence aloft with no chance of precipitation. With the western Atlantic ridge axis lying across north Florida migrating eastward, northeast to east surface winds should keep low temperatures in the lower to mid 60s in most island locations.
818 PM EST Wed Jan 31 2018 High pressure will linger over the region tonight, then move offshore early Thursday. A return SW flow will bring warmer weather on Thursday. A cold front will approach from the northwest Thursday evening, then cross the area Thursday night.
Otherwise high pressure near the west coast will keep dry conditions with above average temperatures and generally light winds for the next 7-10 days.
600 PM CST Wed Jan 31 2018 A cold front is currently beginning to sweep across central and southeast Illinois from the northwest. However, another front/trof (and driving short wave) will quickly follow on the heels of the first late tonight/early Thursday. Forecast soundings suggest the low-level moisture profile will remain quite dry as the secondary boundary passes through, but the moisture depth above the dry low-level layer is a bit more impressive with the upper-level short wave.
841 PM MST Wed Jan 31 2018 GOES IR imagery for North America shows an Arctic low over Hudson Bay that has sent a cold front into the Northern Plains that has moved well south of eastern Montana. Off to the west, a ridge is directing a moist flow aloft along this cold front, producing clouds and precipitation.
A cold front will move south across West Central Texas Wednesday morning, with gusty north winds at KABI by 13Z an KSJT by 15Z. /issued 244 PM CST Wed Jan 31 2018/ (Tonight and Thursday) Very warm conditions will continue across West Central Texas this afternoon, with temperatures in the low to mid 70s. The cold front has progressed south into the Panhandle this afternoon, although not making quite as quick a progress as we were thinking a few days ago. Relatively mild again tonight, with lows in the low to mid 40s for most locations. A little cooler on Thursday, with highs behind the front across the Panhandle in the upper 50s and lower 60s. Farther south where the front will pass during the day, highs will be a little warmer.
711 PM EST Wed Jan 31 2018 Low pressure will move from Ontario into Quebec late tonight and Thursday. The first of two cold front associated with the low will move across the region late tonight and early Thursday. A stronger cold front will move through Thursday afternoon dragging much colder air into the area.
The western edge of a broad area of high pressure is still present over our area, so dry conditions will continue overnight. However, light southerly flow ahead of an approaching upper level trough will increase upper level moisture and high clouds from west to east during the early morning hours.
1039 PM EST Wed Jan 31 2018 A cold front will cross the Ohio Valley on Thursday.
947 PM CST Wed Jan 31 2018 A cold front is slowly moving toward the Mid-South tonight and is currently located from the lower Great Lakes to KSTL into Oklahoma. Overnight expect increasing mid and high clouds from the north and low clouds surging from the south, across the lower Mississippi Valley. /issued 331 PM CST Wed Jan 31 2018/ A few high clouds are streaming across north MS this afternoon but the air mass remains dry in the low-levels. Benign weather conditions are expected tonight, but a cold front will move across the CWA late tonight and early Thursday. Rain chances will increase throughout the day, primarily along and behind the cold front.
931 PM CST Wed Jan 31 2018 New model guidance is showing fog developing across the lower elevation western areas overnight. Surface winds will continue to be south at 5 to 10 knots overnight but then switch to the west and then north Thursday afternoon as a weak cold front moves through. A cold front will be pushing across central Texas overnight and expected to move across south central Texas midday on Thursday.
Upper ridging near 130 W extends inland over California as weak embedded waves and associated high clouds stream into the CWA. Warmer guidance showing potential for a few record high temperatures tomorrow, mainly in the Northern Sacramento Valley.
535 PM CST Wed Jan 31 2018 Zonal flow prevailing over the Nation's midsection this afternoon as a low amplitude upper low continues to slowly move through eastern Manitoba and western Ontario. As we head into the overnight, dry conditions will prevail despite the passage of a secondary cold front early Thursday morning, as another spoke of energy dives south east across the upper Midwest. Following its passage, cold air will finally settle south over our region which will result in a noticeably cooler day tomorrow as highs only climb into the upper 20s to lower 30s. Following the aforementioned frontal passage, fcst models are in excellent agreement that arctic high pressure will settle south of our region, ensuring below normal temperatures continue right into the upcoming weekend.
903 PM EST Wed Jan 31 2018 High pressure is currently centered across the SE South Carolina coast. Some progged low level moisture indicates a return of thickening stratocu from the west by tomorrow morning, then on the increase as an elongated cold front and attendant broad longwave trough approach from the NW.
High pressure over the western states will result in dry weather and well above average temperatures through the coming week. Dry and warm conditions will continue as a ridge of high pressure remains over the west coast of the United States.
/issued 331 PM CST Wed Jan 31 2018/ A few high clouds are streaming across north MS this afternoon but the air mass remains dry in the low-levels. Benign weather conditions are expected tonight, but a cold front will move across the CWA late tonight and early Thursday. Rain chances will increase throughout the day, primarily along and behind the cold front.
Nighttime lows should be 5-10 degrees warmer than the previous night as easterly flow continues to modify the air mass across the area. /issued 339 PM EST Wed Jan 31 2018/ An area of high pressure moving into the western portion of the Atlantic will continue to dominate the weather across South Florida for tonight and tomorrow. The region will remain on the southern side of the high pressure which will allow for the easterly flow to continue. Low temperatures will range from the upper 40s across the the northwestern interior to the lower 60s across the east coast metro areas.
Dewpoints are still in the lower 20s so any location that does see winds drop off this evening could quickly drop into the mid to upper 30s. The main batch of rain won't arrive until later in the day with the cold front. Issued by WFO Birmingham, AL at 330 PM CST Wed Jan 31 2018 Moisture will continue to increase on Thursday as a cold front approaches.
Predom dry cold front is currently making its way ewd thru the cntrl TN Valley this early Fri morning, with little fanfare to show for it other than some lingering winds out of the NW near 10-15MPH with occasional higher gusts. The sfc front should continue its track to the E later this morning, as a strong dome of high pressure out of the srn/mid Plains takes aim on the Midwest/TN Valley Regions. High pressure will continue to exit the area to the E going into the first half of the weekend period, as a longwave upper trough axis moves ewd across the Atlantic Coast and into the Atlantic waters.
Sct-bkn cloud cover through the day due to an upper trough passage. Still some cirrus associated with an upper trough moving across Wisconsin today.
1234 PM EDT Fri Mar 30 2018 High pressure tonight into Saturday. Still some lingering showers across Ohio associated with an upper disturbance, along with areas of drizzle lingering behind the cold front, generally east of the Ohio River. With that being said, precipitation will gradually taper off area wide this evening, with high pressure building in.
659 AM CDT Fri Mar 30 2018 High pressure will move across the region today and give the Ozarks a respite from the wet and dreary pattern. The high pressure will not linger as it moves through the area tonight as a cold front moves towards the area. As the cold front moves through the area, lingering showers will continue into the evening.
A 1029 mb high pressure over central OK will settle into the mid MS river valley by sunset, keeping winds fairly light today and decrease the mid level clouds. Temperatures currently in the upper 30s and lower 40s, will climb into the lower 50s for highs this afternoon. while a weak trough extends westward across southern portions of Indiana and Illinois. Latest radar mosaic shows a few lingering showers associated with the trough primarily south of I-70: however, these will push southeast of the KILX CWA before dawn. Given ample cloud cover, high temperatures will remain in the lower 50s. Deepening low pressure will track through the Upper Great Lakes, pulling a trailing cold front through central Illinois on Saturday.
Indeed, the near term pattern is relatively stagnant with weak flat ridging over the west coast. Variations in the sensible weather will be driven by weak short waves riding over the ridge. It will remain dry, The main effects of the wave will be to weaken the surface thermal trough along the coast, which will in turn weaken the northerlies over the coastal waters, and support a marine push into the coast and Umpqua Basin. Inland highs will be a degree or two cooler than today's highs.
/issued 344 AM CDT Fri Mar 30 2018/ This morning's surface analysis indicates a secondary cold front is moving southward through the region in advance of an area of high pressure. The front is expected to move into the Gulf by mid-morning and allow for high pressure to build into the region.
944 AM CDT Fri Mar 30 2018 A benign weather day is expected today as high pressure at the surface will slide into the region.
As the base of an upper trough rotates through, some high cirrus traveling mainly to our north may clip Houston County later this morning. In the far southwest, there are some scattered lower clouds in place and so took a degree or so off some of the highs in that area. Surface ridging and a dry nw flow aloft should lead to a very nice weekend.
In the middle and upper levels(700-200 mb), latest GOES 16-R imagery overlaid with model streamline analysis as of 900 am, depicts a large middle and upper level trough now encompassing the western two-thirds of the CONUS, with the main downstream ridge axis migrating off the Eastern Seaboard in the last 24 hours. At the surface and in the lower to middle levels(Surface to 700 mb), latest satellite imagery overlaid with both marine and land surface observations and analysis as of 900 am, detail an only trudging eastward cool frontal boundary situated from the Middle Atlantic States to near 90 W in the Southern Gulf of Mexico. Rest of today, main surface ridging will continue to slide a bit eastward and offshore, keeping a gentle southeast flow across the islands and surrounding waters.
As cooler, drier air moves over the area this morning, the current IFR to low MVFR CIGs will mix out from the north.
Much cooler temperatures today, as readings will struggle to recover into the 40s with persistent cold advection. The bulk of the precipitation will have ended by lunchtime, although lingering rain or snow showers are possible into the late afternoon hours over the southern half of the region until the trough passes. Warmer temperatures are expected on Saturday as winds become southwesterly. The next cold front will cross the area Saturday night, bringing more showers to the region.
Another warm spring day today as the upper level ridge remains just off shore. Temperatures will reach the mid 60s this afternoon in the lower valleys.
1255 PM EDT Fri Mar 30 2018 A cold front will approach the area from the west today and pass through tonight. High pressure will pass through from the west on Saturday.
06Z surface data has high pressure in the Plains with a storm system developing in the northern Rockies. As forcing increases precipitation will break out ahead of the cold front. The cold front is expected to enter the far northwest area right around sunrise Saturday. Saturday: The strong cold front sweeps through the area in the morning, shifting the mostly pre-frontal rain east of the region by mid morning following trends of the slightly faster models. High temperatures were kept in the lower 50s south, while the north may see a non-diurnal trend with morning highs in the lower 40s as cold air advection sets in by late morning.
714 AM EDT Fri Mar 30 2018 A mixture of VFR and MVFR this morning at all sites as a cold front pushes through the region.
1111 AM EDT Fri Mar 30 2018 A cold front will approach the area from the west today and pass through tonight. High pressure will pass through from the west on Saturday.
1054 AM EDT Fri Mar 30 2018 A cold front will move southeast across the area late this afternoon and evening. High pressure will build in from the Midwest tonight and Saturday. Meanwhile, back across the mountains, a very faint secondary convective line, attendant to the actual cold front, is on track to cross central NC between 18 to 00z. Partial clearing, which can be seen on visible satellite imagery spreading east into the western Piedmont, courtesy of the increasingly westerly downslope flow developing in the wake of the exiting moist conveyor feed, will allow for tempered insolation during the late morning/early afternoon to help warm afternoon temps into the lower to mid 70s. High pressure will build overhead Saturday and Saturday night.
Max Temps will range from the lower 70s across SE GA/Suwannee Valley to the upper 70s/JAX metro area to lower to middle 80s across the St Johns River Basin/NE FL south of JAX. A few showers/storms possible early this evening across NE FL/Atlc Waters but ending after sunset then slow clearing of skies overnight as cooler/drier air rushes in on north winds with lows falling into the upper 40s/near 50 SE GA/Suwannee Valley and in the 50s elsewhere by morning.
932 AM CDT Fri Mar 30 2018 The base of an upper trough is just north of the area and will continue to progress east today. At the surface, a cold front has already passed through and is down in central GA. High pressure at the surface and drying aloft has created a subsidence inversion, around 900mb per BMX and LAPS soundings. Bumped the highs up a deg or two due to some clearing already occurring so highs in the upper 50s to lower 60s seems reasonable. High pressure will continue to exit the area to the E going into the first half of the weekend period, as a longwave upper trough axis moves ewd across the Atlantic Coast and into the Atlantic waters.
1154 AM EDT Fri Mar 30 2018 Hydro High pressure will provide fair weather today, then very windy conditions will develop on Saturday as a strong low pressure system tracks across Upper Michigan.
A cold front along the Appalachian chain reached through the FL Panhandle to the Gulf of Mexico early this morning with showers and a few storms ahead of it. The axis of Atlantic high pressure extended west-southwestward. as a short wave trough tracks up the Ohio Valley. Winds shift from southeast to west ahead of a cold front. A cold front approaches the waters today.
758 AM EDT Fri Mar 30 2018 A cold front will move east of the area this morning. A weak ridge of high pressure with cooler and drier conditions will build in for the start of the weekend.
1054 AM CDT Fri Mar 30 2018 High pressure continues to build into the Mid-South this morning. We will see the passage of a couple of cold fronts but conditions do not look favorable for severe thunderstorms. Clouds will linger today as a broad trough shifts across the Midsouth. Clouds will return to the region late Saturday as a weak cold front moves into the area.
Eastern WA/OR will be on the east side of an upper level ridge.
Southerly winds have been 15-20 knots early this morning, but an approaching frontal trough will cause the pressure gradient to weaken with winds diminishing to 10-15 knots.
/issued 435 AM EDT Fri Mar 30 2018/ Latest WPC analysis depicts a weak cell of high pressure between the Florida peninsula and Bermuda, slightly further east compared to yesterday at this time. A low pressure center can be observed sitting over the Carolinas with a cold front extending south southwestward across the Gulf of Mexico. Maximum temperatures are forecast to remain in the low 80s, a degree or two above seasonal norms.
A diffuse area of rain ahead of a cold front is draped across most of the forecast area at the moment. Clearing will be from west to east this afternoon with high temps rebounding into the lower 70s for most locations.
Cooler air mass will keep temperatures below normal today, with highs in the 50s north to 60s the rest of the state. Today Through Saturday Night High pressure will build over Arkansas from the Plains today. The high will begin departing to the east tonight, and tranquil weather will not last much longer. A new cold front will approach from the Plains on Saturday, and will be on our doorstep toward evening.
1140 AM EDT Fri Mar 30 2018 Occasional light rain, possibly mixed with wet snow over the higher elevations along the spine of the Alleghenies, will end by Friday evening.
551 AM MDT Fri Mar 30 2018 The more direct Northwest flow aloft will be backing slightly to the West as the Left Coast ridge flattens and the downstream trough swings eastward. This in turn means more stable conditions and the possibility of mixing warmer air downward. Snow should accumulate a bit better after sunset but without cold air mixing into the equation expect but only the high peaks of the Park Range should see anything significant.
1044 AM EDT Fri Mar 30 2018 The surface cold front has reached our eastern border, and a NW flow pattern with cold advection will be in place for the area through the day. Shower coverage has dropped to isolated at best for northern parts of the area, and this will probably continue through the afternoon as the midlevel trough axis crosses the area late in the day.
At mid morning, a cold front had passed through all of Mid TN. Cooler air was moving in on northwest winds. More substantial clearing will take place this evening from 6 PM to 9 PM as dry high pressure pushes away the clouds.
The cold front is finally sweeping through Middle Tennessee early this morning. Look for skies to gradually clear out this afternoon and evening as high pressure works its way into the region.
349 AM EDT Sun Jun 11 2017 An upper level ridge of high pressure centered across the middle of the Atlantic continues to hold sway across the Ohio and Tennessee valleys. Lows will range from around 60 in the valleys, to the mid and upper 60s on the ridges. Highs on Monday will be similar to perhaps just a bit cooler compared to highs today. High pressure will continue to provide mainly VFR conditions, besides some patchy IFR fog in the deeper river valleys through 13z.
538 AM EDT Sun Jun 11 2017 High pressure will continue to build into the area today maintaining fair weather, with temperatures slightly above normal. Above normal high temperatures, in the lower 90s. Strong upper level ridge will remain over the region through the period. High temperatures will likely be a few degrees above normal during the period with ridging in place. The main upper level ridge will begin to weaken and gradually push further off to the east through the period, allowing Atlantic and Gulf moisture to push into the region.
319 AM EDT Sun Jun 11 2017 A warm front moves east of the region today ushering in very warm air for today and Monday across much of the area.
340 AM EDT Sun Jun 11 2017 High pressure will continue to build into the area through today, maintaining fair weather, with temperatures slightly above normal. Above normal high temperatures, in the lower 90s. Strong upper level ridge will remain over the region through the period. High temperatures will likely be a few degrees above normal during the period with ridging in place. The main upper level ridge will begin to weaken and gradually push further off to the east through the period, allowing Atlantic and Gulf moisture to push into the region.
440 AM EDT Sun Jun 11 2017 High pressure will build across the area today through Monday bringing dry warm weather with high temperatures both days well into the 80s.
A cold front will continue to make its way east overnight, but then should splay out west to east over Nebraska. Convective debris cloudiness and east/northeasterly winds may keep temps a little cooler on Sunday, but still above normal. At the surface, the cold front will be set up from the parent low across NE through far southeastern SD and southern MN. At this point, the evolution is still a little uncertain, but the 500mb low ejecting northward into ID by the end of the day Monday will bring a temporary ridge across our area.