Aikyam-Lab/Synoptic-Bench huggingface dataset:
641 PM EDT Fri Sep 29 2017 Weak low pressure over the Great Lakes will race east into the region tonight before sliding offshore by late Saturday. High pressure builds across the region Saturday night and looks to remain through mid week with a gradual warming trend. with readings a bit warmer at the coast.
213 PM CDT Fri Sep 29 2017 A blocking pattern currently situated across the Northern Rockies will slowly erode this evening, ushering in the next pattern change which will bring a return of precipitation chances for portions of the area Saturday night.
307 PM MDT Fri Sep 29 2017 An exiting upper level ridge of high pressure will maintain dry conditions tonight. On Saturday, the first in a series of cold fronts will move through the region, cooling afternoon highs back down closer to more seasonal normals, along with allowing for a few scattered showers, especially over Southwest MT.
1247 PM CDT Fri Sep 29 2017 A dry cold front is on the way through the region, with a wind shift to more northeasterly. 00Z short range models track low pressure se into Lake Ontario by sunset and push the cold front south across central IL during this morning and through southeast IL during early/mid afternoon hours. SW winds ahead of cold front to turn nw behind the front with gusts 15 to 20 mph this afternoon. 1030 mb Canadian high pressure over southern Manitoba will settle into the western Great Lakes by dawn Saturday and bring clear skies and lighter winds tonight. A cooler night ahead with lows in the low to mid 40s, coolest by Galesburg. Upper level ridge shifts east into IL on Saturday while Canadian high pressure sprawls across the Great Lakes region and ridges into IL.
Highs will top out in the low/mid 60s. Tonight skies will clear area-wide with light winds, and temperatures will dip into the 30s for many areas north of Interstate 94 from near Mille Lacs to Cambridge to Ladysmith. Who gets the highest amounts will all depend on where a front stalls and when it exits.
308 PM PDT Fri Sep 29 2017 A cold front will continue to slowly progress south through the region this weekend.
More discreet showers have developed across the eastern third of the service area this afternoon, and another area of rain and showers is lifting northward through the Straits of Florida south of the Lower Keys. An elongated trough stretched across the Everglades to the west of the island chain will be lifting slowly but steadily northward tonight into Saturday. Through the early portion of the coming work week, expansive high pressure will settle across the eastern US, allowing for a deep easterly breeze to set in across the local area. By the middle of the week, a mid to upper level ridge across the deep south will be shunted by a relatively broad trough draping towards the southeast.
311 PM CDT Fri Sep 29 2017 Upper ridge has backdoored drier air into the region with low and mid lvl easterly flow. Seasonal temps have returned to the area thru Sat night with daytime highs ranging thru the 80s, and overnight lows in the lower to middle 60s, and some upper 50s expected along and north of I-30.
327 PM CDT Fri Sep 29 2017 The weather pattern becomes more active heading into the weekend ahead of an upper low pressure system and trough over the Rockies. At the surface, high presure was building southeast from the upper Midwest and low pressure was developing along the high plains. Mid and high cloud cover were increasing from the west associated with increasing moisture/lift as jet streak rounds the base of the intermountain trough and noses northeast onto the plains. Temperatures in the low/mid 70s still look on track at this time for highs. Saturday night the lead wave lifts out across the northern plains while the western trough deepens over the Rockies, resulting in southwest flow across the interior CONUS.
/issued 1123 AM CDT Fri Sep 29 2017/ Upper troughing over great lakes has continued to gradually funnel drier air into region, with ne winds at sfc generally btwn 5 and 10 mph.
A low pressure system north of Arizona will continue the chance of showers and thunderstorms through Saturday, primarily over the eastern portion of Arizona. A large area of low pressure will move south out of Canada and over the western US. A series of strong but generally dry short- wave trough disturbances will brush Arizona.
/issued 349 AM CDT Fri Sep 29 2017/ The broad upper trough over the western third of the u.
245 PM CDT Fri Sep 29 2017 Upper level low over Wyoming this afternoon will lift northward into Montana by Saturday morning.
Another round of showers for the southeast plains and continued Upper low over SW WY/NW CO will continue to lift slowly northward today. An inch or two of accumulation will be possible with thunderstorms across the higher peaks. Showers and thunderstorms will diminish through the evening, then pick up again across the southwest mountains after midnight as moisture in southwesterly flow ahead of the next incoming trof provides favorable upslope for the eastern San Juan mountains. Snow levels will remain above 12kft tonight but could see some local accumulations of 1 to 2 inches across the higher peaks by morning.
559 PM CDT Fri Sep 29 2017 A blocking pattern currently situated across the Northern Rockies will slowly erode this evening, ushering in the next pattern change which will bring a return of precipitation chances for portions of the area Saturday night.
341 PM CDT Fri Sep 29 2017 The "cold" front that pushed through the area this morning did little to temper our above normal temperatures as the drier air filtering in behind the front allowed highs in many places to once again reach the lower 90's. One more day of dry weather expected Saturday compliments of the drier air and high pressure centered across the central US.
There is very good agreement among model guidance for rain to develop shortly after midnight in western Idaho and expand eastward overnight with the cold front. Winds will increase from the west with the cold front passage and become gusty by the afternoon. Cooler temperatures are expected behind the cold front causing Saturday to be around 20 degrees cooler than today.
1224 PM CDT Fri Sep 29 2017 Northeast surface flow will continue around the broad ridge centered over the Midwest. Will need to keep an eye on cigs at FTW, AFW and ACT due to the close proximity of the lower conditions immediately to the west.
355 PM EDT Fri Sep 29 2017 Cooler than average temperatures are expected into Saturday.
246 PM CDT Fri Sep 29 2017 Confidence remains very high in the short term as a large dome of high pressure continues to work its way southeast out of southern Canada into the Great Lakes and upper Ohio Valley regions.
247 PM MST Fri Sep 29 2017 Moisture over eastern Arizona will persist today resulting in isolated showers and thunderstorms over the higher elevations well east of Phoenix.
235 PM EDT Fri Sep 29 2017 Weak low pressure over the Great Lakes will race east into the region tonight before sliding offshore by late Saturday. High pressure builds across the region Saturday night and looks to remain through mid week with a gradual warming trend. with readings a bit warmer at the coast.
Temperatures range from the lower 50s in Paris to the lower 60s in the Delta.
344 PM CDT Fri Sep 29 2017 A weak cold front has pushed through Central Alabama, with high pressure centered well to our north, across northern MN. A mid level moisture axis associated with the upper level trough axis has left just enough moisture in place for a few isolated and brief showers this afternoon across the east and south. Overnight lows will be in the low 60s north to upper 60s south. This will bring in cooler/drier weather for the region.
A cold front approaching tomorrow could start bringing a few showers to GLH/GWO/CBM/GTR sties before the morning is out, but the main chance for showers and thunderstorms will come tomorrow afternoon (especially along and north of the I-20 corridor).
812 PM EDT Mon Sep 4 2017 Broken line of storms currently stretches from northwestern Ohio to central Missouri ahead of a strong cold front that is advancing toward the region. A strong cold front will approach the Ohio Valley late tonight bringing a broken line of showers/storms to southern IN/central KY late tonight through Tues morning. The cold front and storms should push through Tues morning with lingering post-frontal showers slowly moving out Tues afternoon. Tuesday highs should fall back into the lower 70s. Mainly dry conditions are expected Tue night with lows dropping into the lower 50s with a few upper 40s readings expected.
Leading push of cold front has moved through Denver metro area, but little cooling with this one. While the plains largely scour out of the near surface smoke, we do anticipate the smoke plume aloft to keep hazy conditions in place on the plains, and some smoke in the high country. Highs on Tuesday will be considerably cooler in post frontal airmass. Tuesday night a large upper level ridge of high pressure will stretch from British Colombia south into northern Mexico. with a deep upper level trough of low pressure covering much of the central and eastern United States.
530 PM MDT Mon Sep 4 2017 Updated Aviation Low temperatures will drop into the lower 40s tonight under clear skies and light winds, with frost possible in elevated valleys. High pressure will provide hotter temperatures through the end of the week.
722 PM EDT Mon Sep 4 2017 Aviation A strong cold front will bring scattered thunderstorms late this afternoon and lingering showers tonight. A much cooler airmass will move in behind this system through midweek along with scattered lake effect rain showers. At 18Z a strong cold front was moving through our nw fcst area. Nw flow lake effect rain showers will develop Tuesday as h8 temps fall to 4 to 5 C Tuesday afternoon yielding delta t/s in the lower teens.
Lows will range from the low to mid 70s. Ridge axis will generally remain north of the Cape as it shifts slightly southward into tonight.
These storms are occurring ahead of cold front that has now reached a KSLO-KCPS-KVIH line. Cooler air is moving in behind the front, and lows still look like they will fall into the upper 50s and low 60s. Britt Cold front currently extends from northern Illinois into west central Missouri. Would expect thunderstorms to develop in the next 1-2 hours as mid level ascent increases slightly on the tail end of a mid level trough that will move through the Great Lakes.
1003 PM CDT Mon Sep 4 2017 The evening water vapor imagery indicates a weak closed low with an accompanying shear axis still lingering from portions of extreme SE TX into N LA, which has shown signs of drifting SE ahead of the broad longwave troughing over much of the Plains/Midwest, and Ohio Valley.
654 PM CDT Mon Sep 4 2017 A cold front, which extends from just north of Enid to near Woodward, will move southward this evening and overnight.
Weak high pressure from the Atlantic extending west across the north-central peninsula will maintain tranquil boating conditions with light winds and slight seas over the Gulf waters the remainder of tonight through mid week with an onshore sea breeze developing along the coast each afternoon.
938 PM EDT Mon Sep 4 2017 A cold front will move into the northwest part of the state tonight, then progress very slowly to the east during the day Tuesday.
914 PM EDT Mon Sep 4 2017 High pressure will slide out to sea tonight.
Nice ENE steering flow aloft allowed mountain storms to push off into the lower elevations.
929 PM CDT Mon Sep 4 2017 A cold front continues to advance south across MO/IL this evening and can be analyzed from near Joplin (MO), to St. A strong cold front located from the lower Great Lakes to southeast Kansas will drop quickly south overnight and be located from Paris to Jonesboro by 12z Tuesday. North Mississippi stands the best chance for seeing a few strong storms as the airmass destabilizes ahead of the front with SBCAPES greater 2000 j/kg and some marginal shear spreading south with broad upper trough.
With the slower timing and clearer skies lasting a little longer tonight, have nudged temps down a degree or two, especially in the cooler valley locations.
However, the low levels may still be too unstable for widespread coastal low cloud development yet tonight. The models keep an upper low/upper trough near the California coast through the rest of the week and also develop periodic isolated light precip over or near our forecast area. Upper low off the southern California coast is moving NW with a few showers wrapping around the low through the district. SFO Bridge Approach.
Winds will veer to the west at less than 10 knots on Tuesday morning, ahead of an approaching cold front. The cold frontal passage is expected at KABI around Noon, with increased north-northeast winds following its passage. A large upper level trough will swing across the northern Plains/Great Lakes region tonight into Tuesday. This will send a cold front into the Big Country late Tuesday morning, then through the rest of the area by Tuesday evening. Highs will mainly be in the low to mid 90s. (Tuesday night through Monday) As a cold front continues to push through the region Tuesday night, the chance for showers and thunderstorms will persist.
Beyond sunrise, expect VFR conditions with light winds as the cold front pushes into the region. /issued 334 PM CDT Mon Sep 4 2017/ Wx map shows weak high pressure over the SE US through TX, giving light and variable winds. Across the upper levels, a significant trough will deepen across the Central and East U.
537 PM MDT Mon Sep 4 2017 Water vapor shows upper ridge amplifying along the west coast with trof digging into the Upper Midwest.
1159 PM CDT Mon Sep 4 2017 For the ArkLaTex terminals a cold front will move across the area by the this Tuesday shifting SW/W sfc winds to NW/N during the afternoon. Outlook for daybreak BR at most in the wake of high pressure coming down the MS valley with a touch of Fall. /issued 1003 PM CDT Mon Sep 4 2017/ The evening water vapor imagery indicates a weak closed low with an accompanying shear axis still lingering from portions of extreme SE TX into N LA, which has shown signs of drifting SE ahead of the broad longwave troughing over much of the Plains/Midwest, and Ohio Valley.
1219 AM EDT Tue Sep 5 2017 A cold front will slowly push into the state from Quebec later tonight into Tuesday.
705 PM CDT Mon Sep 4 2017 For the ArkLaTex terminals a cold front will be across the area by the this Tuesday shifting SW/W sfc winds to NW/N during the afternoon. Outlook for daybreak BR at most in the wake of high pressure coming down the MS valley with a touch of Fall.
653 PM CDT Mon Sep 4 2017 Cold front is currently moving into the CWA this afternoon and will continue to move southeast through the CWA late this afternoon through this evening. Convection should be south of the CWA by midnight, but could be some lingering precip in the southeast as mid level trough will still be coming through the CWA. Behind the front, Tuesday, dry weather is expected across the area with high pressure off to the west and the mid level trough deepening. Cloud cover and precip will keep up through most of night, but expecting northern areas of the CWA to drop into the lower 50s by morning. Temps tomorrow will be much cooler than today and yesterday and should be below normal.
1107 PM EDT Mon Sep 4 2017 A cold front from lower Michigan to near Chicago will move southeast across the local area tonight.
1211 AM EDT Tue Sep 5 2017 Showers and storms will accompany a cold front over the region this morning. The midnight update included some cosmetic adjustments to POPs and weather as convection, albeit weakening with a stabilizing boundary layer, will continue to develop over the Upper Ohio Region this morning as a cold front/associated upper trough encroach. As that upper trough amplifies over the Midwest/Great Lakes today, eastward frontal penetration power will be compromised by southwest/semi-parallel flow aloft.
A cold front approaching later today could bring a few showers to GLH/GWO/CBM/GTR sites before the morning is out, but the main chance for showers and thunderstorms will come during the afternoon (especially along and north of the I-20 corridor).
1018 PM EDT Mon Sep 4 2017 There are few showers and thunderstorms in a small cluster just north of the Lower and Middle Keys at this hour.
Surface cold front extends from near Jefferson City, MO southwest to Wichita to Alva OK. The cold front will continue to march quickly south and east overnight into Tuesday morning, and will be south of the Red River by early afternoon. Model guidance (hi-res ARW/NMM, HRRRX, NAM, GFS, ECMWF) has trended much drier today over our area in the post-frontal regime, with the only decent signal being a band of showers along the low-mid frontal zone near the KS border Tuesday morning.
1046 PM EDT Mon Sep 4 2017 A cold front will move into the northwest part of the state tonight, then progress very slowly to the east during the day Tuesday.
809 PM EDT Mon Sep 4 2017 Update A strong cold front will bring scattered thunderstorms late this afternoon and lingering showers tonight. A much cooler airmass will move in behind this system through midweek along with scattered lake effect rain showers. At 18Z a strong cold front was moving through our nw fcst area. Nw flow lake effect rain showers will develop Tuesday as h8 temps fall to 4 to 5 C Tuesday afternoon yielding delta t/s in the lower teens.
The focus of the activity will be concentrated in Mohave and northern Lincoln counties as well as along the higher terrain. A ridge of high pressure will move over the area today and tomorrow increasing temperatures before an upper-level low digs into the western CONUS later this week. Moisture will remain trapped under the ridge keeping slight chances across most of the region each afternoon, primarily over the higher terrain. Likely see a few of these storms hold together into the lower Colorado River Valley tonight before weakening over eastern San Bernardino County.
1050 PM EDT Mon Sep 4 2017 Gusty southerly winds will continue to bring warm and humid air into the region ahead of an approaching cold front. This strong cold front will move through the area tonight, bringing showers and thunderstorms. Much cooler temperatures and will return for the second half of the workweek. Flow amplifies as mid level trof digs south into the Great Lakes Tuesday/Tuesday night. Cool temperatures will only reach highs from the lower 70s northwest to the mid 70s southeast.
/issued 929 PM CDT Mon Sep 4 2017/ A cold front continues to advance south across MO/IL this evening and can be analyzed from near Joplin (MO), to St. A strong cold front located from the lower Great Lakes to southeast Kansas will drop quickly south overnight and be located from Paris to Jonesboro by 12z Tuesday. North Mississippi stands the best chance for seeing a few strong storms as the airmass destabilizes ahead of the front with SBCAPES greater 2000 j/kg and some marginal shear spreading south with broad upper trough.
1025 PM MDT Mon Sep 4 2017 Water vapor shows upper ridge amplifying along the west coast with trof digging into the Upper Midwest.
100 AM EDT Tue Sep 5 2017 A cold front from lower Michigan to near Chicago will move southeast across the local area tonight.
A strong cold front will approach the Ohio Valley late tonight bringing a broken line of showers/storms to southern IN/central KY late tonight through Tues morning. The cold front and storms should push through Tues morning with lingering post-frontal showers slowly moving out Tues afternoon. Tuesday highs should fall back into the lower 70s. Mainly dry conditions are expected Tue night with lows dropping into the lower 50s with a few upper 40s readings expected.
Cold front is making good progress, and extends now from northeast Oklahoma into west central portions of the state. Cold front moving into far northeast Oklahoma this evening, currently located near a Enid / Caney line.
1152 PM CDT Mon Sep 4 2017 Much cooler temperatures are heading our direction as a longwave trough deepens from the Hudson Bay into the Mississippi River valley region. This leaves our region under strong north/northwesterly flow as a strong ridge of high pressure over the western states continues to build north into Canada. Brisk northerly winds are also expected the next couple of days, as high pressure pushes out of the Dakotas.
A fairly strong cold front will move toward the area this evening and then cross the region overnight. Scattered thunderstorms will accompany the front with much cooler air to follow as we head through the short term period. There is some offset of upper level wind dynamics and the surface cold front (better dynamics lag frontal convergence and instability) and we will be losing a good chunk of instability between 9 PM and midnight.
High pressure will bring clear skies overnight with light winds and good radiational cooling. Lighter winds and cooler than average temperatures are then expected tonight into Tuesday as northwest flow prevails on the backside of a deepening upper trough over the Great Lakes and a prevailing ridge over the western U. Fairly quiet period expected with the upper ridge in control over the area through most of the period.
Isolated showers were moving around the ridge over the offshore waters in the Gulf. A cold front currently entering the Texas Panhandle will move south over the next 24 hours and enter our northern CWA around midnight tomorrow night.
931 PM EDT Mon Sep 4 2017 A cold front from lower Michigan to near Chicago will move southeast across the local area tonight.
Main concerns will be with a strong cold front set to move across the state from north to south tomorrow.
633 PM CDT Mon Sep 4 2017 Much cooler temperatures are heading our direction as a longwave trough deepens from the Hudson Bay into the Mississippi River valley region. This leaves our region under strong north/northwesterly flow as a strong ridge of high pressure over the western states continues to build north into Canada. Brisk northerly winds are also expected the next couple of days, as high pressure pushes out of the Dakotas.
Expect a slow increase in shower and thunderstorm activity for the remainder of the week, as high pressure weakens and southerly flow develops. The remainder of the week will see a shift in the pattern with the ridge over the Great Basin weakening and shifting to the east. We will also see the development of low pressure off the southern California coast.
Cold front moving into far northeast Oklahoma this evening, currently located near a Enid / Caney line.
833 PM EDT Mon Sep 4 2017 High pressure will continue to drift east and offshore tonight.
1153 PM CDT Mon Sep 4 2017 A cold front will bring a wind shift to OKC/OUN/HBR/LAW and SPS through 12z Tuesday. /issued 654 PM CDT Mon Sep 4 2017/ A cold front, which extends from just north of Enid to near Woodward, will move southward this evening and overnight.
859 PM EDT Mon Sep 4 2017 A cold front brings showers and thunderstorms across the area overnight. Main convective line ahead of cold front is now dropping across northwest Ohio and into Lake Erie. As the aforementioned upper trough amplifies over the Midwest/Great Lakes on Tuesday, eastward frontal penetration power will be compromised by southwest/semi-parallel flow aloft.
709 PM EDT Mon Sep 4 2017 A cold front will approach from the northwest tonight and will gradually stall over the area on Tuesday.
Strong high pressure aloft and the associated warm temperatures will remain locked in over the Intermountain West through midweek. An elongated negatively tilted mid level ridge extends across the Intermountain region this evening, sandwiched between an upper low spinning off the CA coast, and a digging mid level trough situated across the northern Plains and upper Midwest. A backdoor cold front associated with the northern Plains trough is currently making its way through western Wyoming, and this shallow boundary is expected to cross northern Utah as a dry feature overnight.