Aikyam-Lab/Synoptic-Bench huggingface dataset:
Issued at 311 AM CDT Fri Apr 21 201 Early this morning, high pressure continued to move into the area. Northerly winds brought cooler and drier air into the area overnight. This high pressure will serve as the main driver in the short term forecast. As for overnight temperatures, a split between the statistical models and the gridded models is evident with the statistical models favoring cooler temperatures than the gridded models. That said, when the winds pick up, it will be also when the lows occur.
318 AM EDT Fri Apr 21 2017 A cold front will move toward the forecast area from the Ohio Valley and stall Friday night across NC.
634 AM EDT Fri Apr 21 2017 Currently - A high pressure system stretching across the extreme southeastern United States is responsible for moderate to fresh east breezes across the Florida Keys and surrounding waters. Meanwhile, a mid to upper level trough is situated in the southeastern Gulf of Mexico and is gradually moving eastwards and also is responsible for a lot of high level cloudiness and weakening low to mid level ridging near the Keys. Forecast - The weakening high pressure system to our north will migrate out into the Atlantic over the next couple of days as a low pressure system moves into the southeastern United States. The Gulf of Mexico trough will also develop a surface reflection near the Yucatan peninsula this weekend.
Cool morning this morning with some temperatures dropping into the lower and middle 30s is spots where clouds cleared longest. With light winds and clear sky tonight, we expect temperatures to drop off through the lower 30s to the east and remain in the mid to upper 30s to the west.
522 AM CDT Fri Apr 21 2017 Quiet and slightly cool weather on tap for today as an upper trough across the Rockies moves onto the central Plains. Highs today just below normal in the lower 60s, with partly to mostly cloudy skies. High pressure prevails tomorrow with more sunshine, and temps a couple of degrees higher than today.
500mb ridge across northern Mexico and southwest Texas will continue to provide subsidence across the CWA Friday. VFR conditions will then prevail through Friday afternoon as high pressure remains in control. An H5 ridge resides across North Central Mexico, with a lobe extending over much of Texas. High pressure lies over the Gulf. Weak, transient low pressure over the Southern High Plains is contributing slightly to the synoptic scale pressure field. High pressure will displace Plains lower pressure Friday night as a front pushes into Texas. Another round of low clouds will develop Friday night, with light winds and low temperatures nudging into the lower 70s.
1045 PM PDT Thu Apr 20 2017 Dry and warmer weather for Friday and into the weekend.
326 AM EDT Fri Apr 21 2017 Low pressure will move slowly east into New England today. The approaching low and a cool onshore flow will provide rain to the region through tonight with some wet snow and sleet possible across the higher terrain near the international border.
Temperatures will be cooler than in recent days in the upper 50s to low 60s today and in the 40s tonight. Carney Still appears that rain will continue through the first half of the weekend as the GFS/NAM/ECWMF all show the upper low moving from southwest Missouri at 12Z Saturday morning into western Tennessee by 12Z Saturday. Thereafter, the low level jet will veer eastward and the upper level ascent will begin to wane causing the precipitation to slowly end from west to east on Saturday night.
324 AM CDT Fri Apr 21 2017 Quiet and slightly cool weather on tap for today as an upper trough across the Rockies moves onto the central Plains. Highs today just below normal in the lower 60s, with partly to mostly cloudy skies. High pressure prevails tomorrow with more sunshine, and temps a couple of degrees higher than today.
1249 AM CDT Fri Apr 21 2017 Surface observations indicating the cold front that affected central IL today has now reached Lawrenceville and is exiting the forecast area. Much cooler temperatures will continue to advect into the area for lows in the 40s to lower 50s. The cold front is easily discernible on radar as well as in the obs, and scattered showers and thunderstorms still exist in advance of the boundary. and clouds and northerly winds will keep the high temps tomorrow in the 50s. Rain chances tomorrow will return in the southern tier of the state as the stalled front slowly reverses as a warm front in the afternoon hours. Rain will keep the temperatures down, particularly in the southern half of the state, in the low to mid 50s.
144 AM EDT Fri Apr 21 2017 Rain is expected overnight with the approach and passage of a cold front. Weak high pressure should return dry weather later today. Showers and isolated thunderstorms are expected to accompany the approach and passage of a cold front overnight. Otherwise, weak surface ridging returning dry weather during the day.
Upper ridging will continue to extend across the Gulf of Mexico and southeast states today, with another day of mostly sunny skies and very warm temperatures expected across the region. Lows tonight should range from around 60 to the lower 60s inland to the mid 60s to around 70 near the immediate coast and beaches.
406 AM EDT Fri Apr 21 2017 Canadian high pressure will build SE across the Great Lakes today and remain in place through the weekend. A low pressure system will track across the Ohio Valley Saturday.
For today, a ridge of high pressure will be over the area through out the day. Overnight, as the ridge settles over and the upper low over the southern plains moves southeast, skies will clear across the area and winds will become light and variable.
At the surface, high pressure was sliding south along the high plains with another ridge axis building south from the Dakotas. Upslope flow and increasing lift as the upstream upper trough moves into the intermountain west are expected to generate rain showers tonight primarily along the high plains. Temperatures Saturday should be near or just below seasonal readings with highs in the low/mid 60s.
437 AM CDT Fri Apr 21 2017 Latest surface analysis revealed a 1005mb low over Lake Huron with a cold front extending to central Tennessee to Red River Valley. A weakening ridge of high pressure was located along Georgia coast to north central Gulf of Mexico. In addition, ridge axis remained from Baja California to south Texas to Lower Mississippi Valley. Expect temperatures to remain above normal with morning lows in the mid to upper 60s and afternoon highs in the low to mid 80s through Saturday. Steeper lapse rates and cooler temps will reside over Red River Valley today and I-20 Corridor across Louisiana and Mississippi on Saturday.
Cool, dry northwest flow today between the exiting trough and building ridge. Temperatures are a few degrees warmer than yesterday, but still slightly below normal. The upper ridge transitions quickly through the interior NW tonight, followed by mild southwest flow on Saturday. Clouds increase Saturday afternoon, especially across southeast Oregon as the first in another series of upper troughs swings through the Pac NW.
A break in the low stratus may occur at KLBB for the next few hours before filling back in. Early on Friday evening, a strong cold front will move through bringing strong northerly winds at all TAF sites. An upper level trough will pull out of the Rockies and across the central high plains midday Friday, with upper heights expected to fall our area during the night. But looming to the north will be a rather notable cold front expected to move into our northern zones late in the afternoon, and central areas probably by early evening.
Weak mid level ridging will shift eastward today as the next trough moves out of the Rockies. This trough will bring our next cold front through the area on Friday.
Low pressure centered over norther Lake Huron will continue to push east of the region as high pressure builds in from the northern plains.
with cold front trailing southwestward through the Ohio River Valley into the Southern Plains. High pressure is building southward from Canada behind the departing front, providing partly to mostly clear skies across the KILX CWA early this morning. As this low tracks eastward, it will spread clouds and a few showers northward into portions of central Illinois later today into tonight. As the low gets closer, showers will spread further north tonight: however, given the dry low-level inflow from the N/NE do not think precip will make much additional progress northward.
313 AM EDT Fri Apr 21 2017 Cold front sags south through this afternoon then lifts back north late Friday night/Saturday.
High pressure will hold over the northeast Gulf of Mexico through Saturday night, then will shift southeast as a cold front pushes in from the northwest.
325 AM EDT Fri Apr 21 2017 Shower chances will continue early this morning as a cold front completes its passage. Otherwise, dry weather is expected today under weak high pressure. Rain chances return especially south of I 70 with weekend low pressure. Isolated to scattered showers should continue early this morning with a crossing cold front. The front is expected to exit the region after by mid morning with dry weather expected the remainder of the day under weak surface ridging. A northern stream upper trough is progged for approach and passage tonight and Saturday as a deepening upper low tracks from the srn Plains to the Upper MS/lwr OH valley region.
603 AM EDT Fri Apr 21 2017 Canadian high pressure will build SE across the Great Lakes today and remain in place through the weekend. A low pressure system will track across the Ohio Valley Saturday.
431 AM MDT Fri Apr 21 2017 Cool air is filtering in behind a departing cold front that passed over Eastern Utah and Western Colorado overnight. Cool dry northwesterly flow will persist over the forecast area on Saturday as a ridge of high pressure slides east over the intermountain west. As the ridge builds over the CWA a brief warming trend will develop. The current satellite water vapor image is showing a ridge of high pressure building over the west coast with a trough of low pressure positioned over the northern Rockies.
We made significant changes for afternoon highs today, following the cooler WRF highs only in the 40s to around 50 degrees this afternoon. However, the signal from the models suggests rain showers persisting across much of the area east of highway 283 through at least midnight as the broad upper low is slow to move toward the Mississippi Valley.
438 AM EDT Fri Apr 21 2017 Canadian high pressure will build SE across the Great Lakes today and remain in place through the weekend. A low pressure system will track across the Ohio Valley Saturday.
High pressure building off the coast will bring a warming and drying trend to the district through today. Satellite imagery shows clear skies across the district and overall, temperatures are running slightly cooler than last night at this time. High pressure aloft will move over the state today bringing warmer high temps to the area, with 60s at the coast to 70s to lower 80s inland. The ridge axis will move inland on Saturday as an upper level trough approaches the coast. Rain chances are expected to stay north of our area, however, cooler weather is indicated over the weekend.
Stacked high pressure remains in place over the area. Lows will be in the low 60s, mid 60s along the immediate coastline. Deep layer ridging will persist on Friday. Ridging will begin to break down on Saturday as a front pushes into the south. High temperatures will remain above average in the mid to upper 80s with lows in the low to mid 60s.
Then a temperature forecast with cooler temperatures behind the cold front. The cold front had sagged to northwest AR, still to the west of KHRO and is showing signs of hanging up there. Tonight Through Saturday Night Will keep the highest chance of convection over northern areas this evening and tonight, then slowly sag south to northern and central areas on Friday. Damaging winds and large hail will be the highest threats, while the tornado threat will be lower. The cold front and upper system will finally pull east of AR on Saturday, and take the storms to the east. Temperatures will start above normal, then cool behind the cold front over the weekend.
509 AM CDT Fri Apr 21 2017 High pressure dominating the weather over SETX with upper troughing over the Yucatan and Western Gulf with sharp upper ridging spreading over SETX and a trough over WY/CO. Upper trough over the Rockies will move east and southeast today and Saturday which will push a front through the area Saturday. Scattered showers and a few thunderstorms will be possible over the northern portions of SETX early Saturday morning ahead of the cold front but a strong cap and lack of heating will be strong inhibitors for storms. prefrontal troughing is a good bet to form. Moderate CAA taking place in the late morning through evening hours will make for a much cooler afternoon/evening with breezy conditions especially near the coast.
Currently as of 09z this morning, a negatively tilted H500 trough was orientated from southeast to northwest along the spine of the Rocky Mountains from Colorado through Montana. A gradual decrease in the intensity/areal coverage of the aforementioned band of precipitation is expected through the morning hours, as the trough becomes more neutrally tilted and moves onto the Central Plains. Deep northerly/northwesterly moist flow will also be developing however, as the upper level trough moves east.
148 AM EDT Fri Apr 21 2017 Low pressure will track across southern lower Michigan and eastward to Ontario tonight, taking a cold front across northern Ohio and northwest PA this evening through early overnight. High pressure will settle across the Great Lakes for Friday through Saturday. Low pressure will track across the Ohio and Tennessee River Valleys Saturday.
A ridge of high pressure will provide a beautiful, though cool start to the weekend with mostly sunny skies today and warmer temperatures by Saturday afternoon.
This deepening low pressure will keep south to southwest winds gusty across our area today. As the low moves east this afternoon, a dryline will push east into our western counties, which will aid in warming today. The cold front is expected to be near or south of I-20 by 10 PM, and into or through the Concho Valley by 1 AM. The best chances for anyone seeing any precipitation will be along the cold front tonight, mainly east of a Haskell to Junction line, where they may possibly be enough moisture to result in some showers and thunderstorms.
417 AM EDT Fri Apr 21 2017 Atlantic high pressure will prevail through Saturday.
357 AM CDT Fri Apr 21 2017 Another unseasonably warm day is expected today, though a strong cold front tonight will provide a break from the heat for this weekend.
647 AM EDT Fri Apr 21 2017 Steady rain ends for Friday however an upper level trough will keep skies mostly cloudy with the chance of a few showers going into the first part of the weekend.
319 AM PDT Fri Apr 21 2017 Dry and warmer weather for Friday and into the weekend.
Red Flag Warning through this evening for western half High pressure will remain over the southeast United States through tonight keeping an easterly wind flow in place over South Florida. The high will weaken while moving east into the western Atlantic waters this weekend. This will allow for low pressure over the Central United States to move southeast into the southeast United States and for the winds to become more south to southwest.
302 AM PDT Fri Apr 21 2017 High pressure overhead into Saturday will bring drier and much warmer afternoon conditions.
High pressure building off the coast will bring a warming and drying trend to the Bay Area and Monterey Bay region through Friday.
400 AM CDT Fri Apr 21 2017 Current surface analysis places trough stretching along the eastern edge of the Rockies, while high settles through the eastern plains into the upper Midwest. Upper level analysis places modest ridge over the northern plains, with trough dipping through the Rockies. Otherwise, a pleasant day is expected with mild temperatures while modest upper ridge remains over the region. Mainly quiet weather continues tonight, though a wave passing to the north may allow some light showers to sneak into northern portions of the area as it pushes upper level level high to the south while a cold front approaches the area.
240 AM EDT Fri Apr 21 2017 Ridge of high pressure will remain over the area through early Friday with the remains of a frontal boundary north of the area.
A cool northwest flow Friday will be replaced by high pressure on Saturday bringing a warming trend.
If this complex/line occurs, which seems likely, the line would likely strengthen after 10 am, most likely southeast of I-44 and north of the Red River as it moves into the warm sector/south of the developing warm front (near a Frederick to Lawton to Holdenville line) with an increasing damaging wind threat. A cold front will surge south across western Oklahoma late this afternoon and evening. Some wind gusts may approach 40 mph behind the cold front passage 4 pm to 2 am, mainly across western Oklahoma and western north Texas. Breezy and cooler conditions will move into the area.
128 AM EDT Fri Apr 21 2017 More widespread storms late tonight as a cold front crosses the region.
439 AM CDT Fri Apr 21 2017 Stratus and patchy fog once again shrouding the area early this morning, as southerly flow around a low/mid level ridge over the SE CONUS continues to result in a very moist nocturnally cooled boundary layer. Changes are on the horizon, however, with guidance remaining in good agreement with the timing/progression of a cold front expected to push through the area on Saturday. The boundary is progged to be on the doorstep of interior E TX Saturday morning, and should be exiting the Lower Atchafalaya region by early/mid evening. Temperatures during the day are expected to warm quite nicely as low level wind profiles veer toward the west, with NW winds and the real push of much cooler and drier air overspreading the area during the evening and overnight hours.
For today, will continue to see cool and dry air advected into the state from the north with Iowa sandwiched between ridging across Minnesota and low pressure in the central Plains. Temperatures will be fairly similar across the state with thicker cirrus in the south making up for the cooler temperature profile in the north with highs around 60 in most locations.
Another round of MVFR ceilings and perhaps visibility is expected tonight as a cold front approaches the area. Surface pressure gradient to tighten for today with some daytime and early wind gusts to around 25 mph in advance of the next storm system and associated cold front. With the winds shifted well ahead of the late morning timing for accelerated daytime heating and a lingering patch of cloud cover trailing the front, will lean on the slightly cooler side of guidances for max temps.
338 AM CDT Fri Apr 21 2017 High pressure will dominate conditions for the majority of the short term period - or through the weekend as it were. As high pressure begins to sag southwards, westerly 850mb flow will help to enhance mixing despite light winds Saturday, and temperatures will top out about 5 degrees above average. It will become a warm front as a lee low forms in eastern Montana/Wyoming so it should/probably not effect our weather.
Snow levels currently around 7200 ft or so based on radar and these should lower some more as the low levels cool and precip rates increase. Added in some mention of patchy fog tonight along the Cheyenne Ridge and over the South Laramie Range as the ground should be moist and the winds will be light upslope from the south or southeast.
606 AM EDT Fri Apr 21 2017 A cold front will move toward the forecast area from the Ohio Valley and stall tonight across NC.
336 AM PDT Fri Apr 21 2017 High pressure aloft near the West Coast will bring dry and warmer weather through Saturday with well above average high temperatures on Saturday except near the beaches.
Surface pressure gradient to tighten for today with some daytime and early wind gusts to around 25 mph in advance of the next storm system and associated cold front. With the winds shifted well ahead of the late morning timing for accelerated daytime heating and a lingering patch of cloud cover trailing the front, will lean on the slightly cooler side of guidances for max temps.
1143 PM CDT Wed Jun 7 2017 High pressure will continue to bring quiet/pleasant weather to our area.
542 PM MDT Wed Jun 7 2017 Current surface analysis shows low pressure over west central MN, with a frontal boundary stretching back southwest through northern SD into southeastern MT. Upper level analysis shows low pressure over far northwest MN with west-northwest flow over the northern high plains. Latest radar analysis shows convective development mostly limited to the higher terrain of the region, though some activity has also developed over southern portions of the Neb panhandle as well. Lows tonight will be in the 50s and lower 60s, possibly some upper 40s over the higher Black Hills. Otherwise, warmer air will continue to build in on southerly flow and building ridge. Highs will be in the 80s to near 90 on the plains, with 70s over the higher BH.
As of now, based off of radar trends, keeping PoPs on the lower side just because of the lack of coverage and low confidence in the short range.
/BB/ Tonight and Tomorrow: Looking across the country this afternoon, troughs of low pressure were anchored off the West Coast and along the East Coast with a broad ridge extending from Mexico through the Plains. The ArkLaMiss region has seen building high pressure at the surface under northerly flow aloft today. This "cool" and dry pattern will continue through the night and into tomorrow, with highs and lows forecast to be around 5 to 10 degrees cooler than normal.
Outflow boundary from earlier storms on the South Plains continued to drift west of the Highway 385 corridor at 8 PM. Precipitation chances will continue to decrease through the end of the work week as ridging aloft takes place and as mid-level temps slowly start to warm.
Upper low will continue to pull off to the northeast Thursday night. A few showers will be possible, but overall, precip chances should end across the higher terrain of NE GA. While a broad trough will remain across the SE US for the weekend, high pressure will be in control of the sensible weather.
1140 PM CDT Wed Jun 7 2017 Should be a seasonably cool night as ridge of high pressure slides southward into the bi-state region. Leaned toward if not below cooler MET guidance for lows tonight due to these conditions.
A ridge aloft will remain anchored over the southwest US the next few days. This airmass has resulted in lower temperatures and dew points with highs today in the lower 80s. It appears that most of this activity will stay west of the area along the western periphery of the high pressure. Highs are forecasted to be in the lower 80s again with no real change in the overall pattern.
However, as the low continues east, a drier and cooler airmass will filter in across the area through Thursday. Lows tonight will fall into the low to mid 60s inland to around 70 near the coast.
Skies will be clear tonight as high pressure moves across the region. Weak southwest flow sets up Thursday as low pressure moves southward from northern Wisconsin and high pressure sinks into northern Illinois.
An upper trough continues to push slowly towards the Pacific Northwest this evening. So far the low levels remain relatively dry east of the Cascades and any precip has had a tough time reaching the ground. The lower levels will continue to moisten and precip will start to reach the ground late tonight into early Thursday.