Aikyam-Lab/Synoptic-Bench huggingface dataset:
641 AM CDT FRI JUL 29 2016 Water vapor satellite early this morning showed a short wave trough over the Nebraska/Iowa border, another over central South Dakota with a third over Montana. These showers should taper off this evening with a dry overnight expected as the short wave troughs move east of the region.
727 AM EDT FRI JUL 29 2016 High pressure will continue to bring oppressive heat and humidity to the region through Saturday.
940 AM PDT FRI JUL 29 2016 A strong ridge of high pressure aloft will bring very warm conditions for inland areas today.
1054 AM CDT FRI JUL 29 2016 Low clouds continue to slowly clear and vertically lift this morning which is allowing temperatures to increase into the low to mid 80s near the 11am hour. Subsidence aloft should take over the remaining areas as a mid level ridge axis to the NW expands east into North Central TX.
An upper-level trough combined with a weak surface boundary will allow for VCTS conditions across most locations through 30/00z. Combined with a weak upper trough axis over the region, these boundaries should provide for at least isolated to scattered showers and thunderstorms today mainly across Southeast Oklahoma and Southwest/Southern Arkansas.
Surface front to our northwest will remain stationary while upper trough remains over the area.
1131 AM EDT FRI JUL 29 2016 Bermuda high pressure offshore with a trough inland will persist through the weekend. High temperatures will again reach the mid/upper 90s inland, with around 90 to the lower 90s coast.
637 AM CDT FRI JUL 29 2016 The primary cold front is rather ill-defined early this morning but best guess would place it across southwest IL and across southern MO into northern OK at 08z. Otherwise slightly cooler and slight drier air will gradually filter into the region, especially tonight in the wake of the second boundary as weak high pressure settles southward from the upper MS Valley and Great Lakes region.
/issued 401 AM CST Tue Mar 7 2017/ For today, a very dry air mass behind the cold front will keep dew points from near 0F to the 10Fs. For tonight, went cooler than blended guidance for low temperatures with the rather dry air mass.
/12Z TAFS/ Surface pressure gradient is weakening in advance of the approaching cold front which should lead to some patchy fog in and near TAF sites this morning. An upper level trough moving across the Northern Plains is forcing a cold front south across Texas that currently extends from Sherman to Abilene to Wink. The front will move into the far northern Hill Country around sunrise to near the Highway 90 corridor late morning to midday and exit south of our area by mid afternoon. A prefrontal trough will minimize moisture convergence along the front while most dynamics remain over the Plains.
1036 AM EST Tue Mar 7 2017 A warm front will cross the region later this afternoon through early tonight.
402 AM CST Tue Mar 7 2017 (Today and Tonight) A cold front this morning was located along a Gainesville to Abilene to Andrews line. Expect cooler temperatures today with highs in the upper 60s to lower 70s.
Temperatures will warm into the 60s for the lower valleys by Wednesday. Storm track will lift north the rest of the week with flat high pressure over California and Nevada. Highs should push above 60 for the lower valleys with 50s in the Sierra. Warming temperatures will help melt the low elevation snow pack, certainly a concern for the ongoing flooding around Swan Lake in Lemmon Valley.
A cold front will move south and clear out the low ceilings after 15Z, with VFR through the rest of the TAF forecast period. /issued 402 AM CST Tue Mar 7 2017/ (Today and Tonight) A cold front this morning was located along a Gainesville to Abilene to Andrews line. Expect cooler temperatures today with highs in the upper 60s to lower 70s.
Strong, gusty winds were blowing this morning across the Mid State in advance of a cold front back over the Mississippi Valley. At 300 am, a line of showers and thunderstorms, just ahead of the cold front, was nearing Paducah and is expected to enter our northwestern areas around 600 am, the Nashville area around 800 am, and the Crossville area by early afternoon.
401 AM CST Tue Mar 7 2017 For today, a very dry air mass behind the cold front will keep dew points from near 0F to the 10Fs. For tonight, went cooler than blended guidance for low temperatures with the rather dry air mass.
/issued 450 AM CST Tue Mar 7 2017/ Cold front movg across Red River valley attm with band of convection centered close to this frontal boundary. As storms move south of I-20, this low lvl jet will likely weaken, as KPOE, just south of cwa, showing 40 kt jet attm. Very dry airmass with skies becmg sunny late in day over northern sections behind cold front and overnight lows into lower to mid 40s and a few lows in the 30s north. When high pressure moves east of MS river by wed eve, southerly flow begins and temps seasonally warm again.
545 AM CST Tue Mar 7 2017 Line of SHRA and some TSRA are continuing to drop SE through the state this morning as a cold front also moves SE. Today Through Tuesday The cold front is progressing SE this morning. strong cold front surges through the state.
311 AM MST Tue Mar 7 2017 Nearly Stacked upper low resides over srn Manitoba with tight pressure gradient extending through the Nrn Plains.
Mostly clear skies and cool temperatures were present across central California early this morning as weak upper level high pressure began to build over the area. Temperatures this morning were generally between 2 and 6 degrees warmer compared to 24 hours ago in the San Joaquin Valley with temperatures between 10 and 20 degrees warmer over the Sierra Nevada. Upper level high pressure over the eastern Pacific will continue to slowly shift east over California today into at least the end of the work week.
652 AM EST Tue Mar 7 2017 Update/Aviation A powerful low pressure system will track eastward through Ontario today through Wednesday.
After a brief bout with April-like warmth and thunderstorms yesterday, more seasonable winter conditions return with a vengeance today with very strong winds behind a cold front. Winds gradually diminish into Wednesday but remain fairly breezy as the low pressure system over southeast Manitoba this morning lifts northeast towards Hudson Bay. Otherwise a few rounds of light snow showers in the wrap-around flow as the low exits and much colder air moves in from the northwest. Tonight into Wednesday the lack of a strong high pressure building in means effects of the exiting low will winder into the day Wednesday with diminishing chances for snowfall across far northern Minnesota and breezy winds continuing. By Wednesday night the upper level flow becomes west-northwest in a quasi-zonal pattern aloft on the heels of the strong upper low that is affecting us this morning.
553 AM CST Tue Mar 7 2017 Cold front/outflow boundary is presently located near a KMKN- KCPT-KTRL line and steadily marching southward. Gusty north winds at the Metroplex TAF sites will gradually subside through the day as high pressure builds in from the north, while remaining elevated a bit longer at Waco. As high pressure slides east of the region tonight, expect winds to gradually veer to favor a southeasterly direction at less than 6 kts. /ISSUED 349 AM CST Tue Mar 7 2017/ A cold front that extended south of a Hugo, OK to Decatur to Cisco line as of 3 AM will continue to move southeast this morning and should extend near an Emory to Cleburne to Goldthwaite line around 6 AM. Thanks to the cold advection behind the front, it will be cooler today despite us getting more insolation.
/Today through Tomorrow Night/ A drier and cooler airmass will be in place today with main concern with winds as system pulls into Canada. Will likley see isolated thunderstorms develop the northern half of the state by mid afternoon ahead of weak trof axis sliding through the state. On Wednesday, mixing will increase once again by afternoon, although the profiles are not as strong with surface ridging approaching the Missouri River valley by afternoon.
/issued 308 AM EST Tue Mar 7 2017/ High pressure will continue to be in control of the weather through the end of the week, and into the weekend. However, a low pressure system will bring a weak cold front into North and Central Florida by Wednesday afternoon. As the front progresses across the eastern half of the country today, it will begin to weaken the high today, which will mainly effect a change in the wind across South Florida. The front dissolves over Central Florida and another area of high pressure will build in, but will not be able to become entrenched. This is because another system will develop of the mid Atlantic coast, weakening the high.
Radars also showing quite a bit of convection along/near the cold front along roughly the I-30 corridor which will move through the area this afternoon, with prevailing showers/tempo thunder included around the time of fropa later. A ridge of high pressure is along the Mid-Atlantic and New England coast this morning while low pressure is over Lake Winnipeg in Southern Manitoba. Aloft, a negatively tilted trough is moving across the plains and into the Great Lakes Region. The cold front will continue south and east today. High pressure will build into the region behind the front tonight. A drier and slightly cooler air mass will spill in and high temperatures on Wednesday will be around climo averages.
543 AM EST Tue Mar 7 2017 Showers are expected today with the approach and passage of a cold front. An upper trough is progged to advance across the Upper Midwest today as a surface cold front approaches the region. A crossing upper trough could result in some increase in clouds mainly N of I 80 Wed, but dry weather is expected. A tightening pressure gradient is also expected Wed between high pressure over the TN valley, and low pressure across Canada.
305 AM MST Tue Mar 7 2017 A rapid warmup can be expected over the next couple of days with high temperatures in the lower deserts climbing well into the 80s by Wednesday.
/issued 718 AM CST Tue Mar 7 2017/ For the 07/12Z terminal forecast, most of the sites will be IFR/MVFR prior to the arrival of a cold front with low ceilings and visibility restrictions. /issued 450 AM CST Tue Mar 7 2017/ Cold front movg across Red River valley attm with band of convection centered close to this frontal boundary. As storms move south of I-20, this low lvl jet will likely weaken, as KPOE, just south of cwa, showing 40 kt jet attm. Very dry airmass with skies becmg sunny late in day over northern sections behind cold front and overnight lows into lower to mid 40s and a few lows in the 30s north. When high pressure moves east of MS river by wed eve, southerly flow begins and temps seasonally warm again.
Moisture pooling ahead of an approaching cold front will keep skies mostly cloudy today, with cigs around 4000 this afternoon. /issued 343 AM CST Tue Mar 7 2017/ SHORT TERM (Today through Wednesday): Cold front continues to press southward across central Texas this morning, ahead of a passing H5 trough to the north. The trough is already lifting to the northeast, so the front is losing most of its upper support. The trough will finally begin to dissipate and slow down as it reaches near the river tonight.
744 AM EST Tue Mar 7 2017 Showers are expected today with the approach and passage of a cold front. An upper trough is progged to advance across the Upper Midwest today as a surface cold front approaches the region. A crossing upper trough could result in some increase in clouds mainly N of I 80 Wed, but dry weather is expected. A tightening pressure gradient is also expected Wed between high pressure over the TN valley, and low pressure across Canada.
937 AM EST Tue Mar 7 2017 Showers are expected today with the approach and passage of a cold front. An upper trough is progged to advance across the Upper Midwest today as a surface cold front approaches the region. A crossing upper trough could result in some increase in clouds mainly N of I 80 Wed, but dry weather is expected. A tightening pressure gradient is also expected Wed between high pressure over the TN valley, and low pressure across Canada.
An update was sent out at 700 am to account for the lower amounts of blowing/drifting snow. The high to the west will also allow for a dry and cool day with highs 5 to 10 degrees below normal.
At the same time, slight ridging and rising heights will also occur allowing for a slight modification to temperatures.
424 AM CST Tue Mar 7 2017 The weather will be fairly active today and tonight as a cold front moves through the forecast area. Water vapor imagery shows a deepening upper level low moving east along the Canadian border near the Dakotas. This low will track east towards the Great Lakes today. A cold front associated with the low and expanding trough will be approaching the CWA from the north late in the day. The upper low will already be pulling north on Wednesday.
634 AM EST Tue Mar 7 2017 It will be breezy this morning with showers gradually ending from west to east as a strong cold front pushes through the region. Cooler and drier weather is expected tonight behind the front.
930 AM EST Tue Mar 7 2017 Cape Wind Profilers indicating flow has veered to the southeast in the low levels below 6 KFT with winds just above the near surface layer to 15-20 knots. High pressure will move farther offshore from the mid Atlc through the afternoon with breezy SE winds continuing along the Atlantic coast and a low light shower chance for coastal areas.
623 AM EST Tue Mar 7 2017 A warm front will cross the region this afternoon.
518 AM CST Tue Mar 7 2017 Cold front moving through the area will finally push the remaining rain to the southeast by 12Z or slightly thereafter. Went warmer than ensemble guidance. High pressure will build south of the area over Arkansas tonight. Gradient winds will stay relatively strong over the area tonight with the high to our south so radiational cooling will be somewhat limited even though the airmass will be dry. Expect lows to dip to near normal in the low to mid 30s.
Weak high pressure will build over the area through Wednesday, pushing the storm track farther to the north and allowing for near normal temperatures to prevail.
1046 AM EST Tue Mar 7 2017 Showers are expected today with the approach and passage of a cold front. The upper trough forecast to advance towards the Great Lakes today will support and push a cold front through the forecast area by early evening. A crossing upper trough could result in some increase in clouds mainly N of I 80 Wed, but dry weather is expected. A tightening pressure gradient is also expected Wed between high pressure over the TN valley, and low pressure across Canada.
525 AM CST Tue Mar 7 2017 In the wake of the exiting showers and thunderstorms, cooler air is moving into the region, but still milder temperatures than seasonal normals expected today. Cooler air dropping the temps down into the 30s overnight tonight with the winds losing their gusts after the column decouples this evening.
1009 AM EST Tue Mar 7 2017 Scattered showers are occurring across the region this morning in moist air mass ahead of cold front moving into the lower Ohio Valley and approaching the Mississippi Valley late this morning. Winds are gusty in the higher elevations of the Appalachians this morning with gusts from 40 to 50 mph continuing through the day.
656 AM EST Tue Mar 7 2017 A cold front will cross the area today. High pressure will build south of the region Wednesday.
Gradually milder temperatures are forecast to return to the region the next several days as high pressure attempts to rebuild.
450 AM CST Tue Mar 7 2017 Cold front movg across Red River valley attm with band of convection centered close to this frontal boundary. As storms move south of I-20, this low lvl jet will likely weaken, as KPOE, just south of cwa, showing 40 kt jet attm. Very dry airmass with skies becmg sunny late in day over northern sections behind cold front and overnight lows into lower to mid 40s and a few lows in the 30s north. When high pressure moves east of MS river by wed eve, southerly flow begins and temps seasonally warm again.
east of the Cascades the usual criteria have consistently been over-indicating winds throughout the winter, and with the 700 MB winds almost due west instead of the optimal southwesterly, have gone with an Advisory east of the Cascades as well, but isolated warning gusts may be possible on the unpopulated ridges.
718 AM CST Tue Mar 7 2017 For the 07/12Z terminal forecast, most of the sites will be IFR/MVFR prior to the arrival of a cold front with low ceilings and visibility restrictions. /issued 450 AM CST Tue Mar 7 2017/ Cold front movg across Red River valley attm with band of convection centered close to this frontal boundary. As storms move south of I-20, this low lvl jet will likely weaken, as KPOE, just south of cwa, showing 40 kt jet attm. Very dry airmass with skies becmg sunny late in day over northern sections behind cold front and overnight lows into lower to mid 40s and a few lows in the 30s north. When high pressure moves east of MS river by wed eve, southerly flow begins and temps seasonally warm again.
533 AM CST Tue Mar 7 2017 High pressure is now building into the region behind the front.
1047 AM EST Tue Mar 7 2017 Currently - A pressure ridge extending across the southeastern United States is maintaining a tight pressure gradient across the Keys. Island locations in the Lower and Middle Keys have received multiple rounds of light short lived showers. Short Term Update - The ridge to our north will gradually ease southwards into Florida this afternoon. A pressure ridge to our north will gradually shift southwards resulting in gradually slackening breezes.
The strongest gradient out ahead of the approaching cold front has shifted northeast out of the Midsouth. Though an isolated gust to near 35 mph will still be possible for the next hour or two in the lower Delta counties.
843 AM EST Tue Mar 7 2017 High pressure will be East of the region Today.
A weakening cold front, accompanied by a weakening band of SHRA/isolated T, will move through southeast AL, southwest GA, and the FL Panhandle after 06Z, affecting KDHN, KABY, and KECP with periods of MVFR cigs/vis in SHRA/BR.
1017 AM EST Tue Mar 7 2017 A cold front will cross the area today. High pressure will build south of the region Wednesday.
Bands of moderate to heavy snow impacted the I-90 corridor and adjacent communities to the highway overnight. Winter Storm Watches remain in effect for the high potential of snow-related impacts to travel tonight through Wednesday (and perhaps longer).
1129 PM MDT THU AUG 11 2016 Water vapor imagery shows an upper low crossing cntrl Canada with the main trough axis across wrn ND into se MT and wrn WY. Latest RAP showing MLCape of 500-1500 J/kg with the highest values near the SD/Neb border. The main trough axis will slide across the area Friday into Friday night, with additional chances for showers and storms. Cyclonic NW flow behind departing upper trough will lead to continued chances for storms on Saturday, especially across the Black Hills and southward.
Ridge axis of high pressure over the west Atlantic will remain just north of the area today with low level winds out of the south to southeast. Deep layer SE flow is forecast across the area around the Atlantic mid level ridge which extends east from the NC coast and a mid level low across srn LA. Increase in the low level SE flow Sat night will allow for scattered showers and storms across the Atlantic some which will move onshore along the coast from the Cape south.
319 AM CDT FRI AUG 12 2016 Early this morning a broad upper level trough was moving east across the northern and central plains. The surface cold front extended from eastern NE, southwest into northwest KS. There may be enough isentropic lift and ascent ahead of the upper trough for periods of showers and elevated thunderstorms to continue into the afternoon hours across portions of northeast and east central KS, which both the 00Z NAM and 00Z GFS solutions show. By Saturday morning, a cold front will have pushed southeast of the area near the Oklahoma and Missouri boarder.
Mid level features consisting of high pressure over South Texas and low pressure over Southern Louisiana remain quasi- stationary through Saturday keeping our atmosphere well capped, hot and very dry. With these dangerous temperatures expected again this afternoon we upgraded the excessive heat watch to a warning and kept the heat advisory going for the Lower Valley and coastal regions. Maybe just maybe a few showers may develop well offshore shore along the far western periphery of the upper low in the North Central Gulf.
259 AM MDT FRI AUG 12 2016 Still have a band of light rain showers across Lincoln county associated with exiting trof and jet streak. Temperatures will also be cooler today following the yesterdays cold front. Lower elevations look to be in the lower to mid 80s. Appears focus for storms today will initiate over higher terrain of East slopes, CYS ridge and and Palmer divide regions with enough ample heating and lingering moisture.
A ridge of high pressure aloft centered across the southeast United States will remain. Will have the highest PoPs there. Around the ridge of high pressure.
324 AM CDT FRI AUG 12 2016 Temperatures early this morning range from the low 80s at Memphis International to the low 70s near the Tennessee River. Morning lows will likely be in the low to middle 70s across the majority of the region. but over the next 48 hours we are expecting to see a weak trough dig to our West and gradual weakening of the Bermuda High to our East. A cold front will approach the Midsouth Saturday afternoon. one just to our North in South Central Missouri along the cold front and another beneath the Cutoff low in South Louisiana. A weak broad trough is expected to shift from the Plains across the Mississippi River valley.
Models continue to show the main upper level trough moving eastward. Patchy fog is possible Friday night as winds become light and variable across the lower valleys. Highs may be a few degrees warmer compared to Friday. The models are in general agreement with the upper level ridge keeping its grip over the forecast area during the majority of the forecast period.
Max temperatures will still remain a few degrees cooler than normal under the northwest flow pattern. We'll transition to warmer and drier high pressure Saturday, boosting temperatures to near normal with mostly sunny skies.
If clouds are thicker and rain more prevalent the highs many locations could be too warm by 2 to 5 plus degrees. Mins mostly in the mid to upper 60s with lower readings in the lower 60s possibly in nw 1/3 for later shifts. consistent pattern with highs in the lower 80s most locations through the period. Mins mostly in the lower to middle 60s with risk of being too mild for later shifts to reassess.
Quiet morning across the region with only a few weak showers around and temperatures in the low 60s to 50s. Some instability along with weak impulses moving through northwest flow aloft will bring hit and miss showers and thunderstorms today into Saturday as broad cyclonic flow associated with an upper low over southern Manitoba remains over the region. Later on Saturday, ridging begins to build in from the west. High temperatures will range from the upper 70s to low 80s today, with slightly warmer temperatures expected on Saturday.
Latest satellite imagery showed a near stationary closed mid-upper low off the Southeast Louisiana coast.
250 AM EDT FRI AUG 12 2016 Bermuda high pressure will extend over the Southeast U. Under clear skies and nocturnal stabilization, temps will fall into the low-mid 70s. The low level flow veers a bit and becomes more southerly but warm and humid air mass will remain in place.
Thunderstorms will likely develop along the front range of CO/WY this afternoon ahead of next weak mid-level trough. Activity will likely remain in eastern Colorado through mid-morning on Saturday with development further east as the day progresses and the trough moves from northwest to southeast.