Aikyam-Lab/Synoptic-Bench huggingface dataset:
High pressure builds into the area late tonight with drier air and climatological below normal temperatures through Saturday afternoon.
Lows tonight look to cool into the lower 60s across southern IN and the northern Bluegrass region with lower-mid 60s across central and southern KY. For Saturday/Saturday night, Canadian high pressure will build into the region ushering in much cooler and much less humid conditions. Under mostly sunny skies, highs on Saturday will range from the mid- upper 70s in southern IN/northern KY to the lower 80s south of the WK/BG Parkways. High pressure is expected to remain in control of our weather for the first half of the period.
/Tonight through Saturday/ Large area of high pressure continues to settle south today from Ontario and into the western Great lakes/Wisconsin area. Light east/southeast flow will continue on Saturday as the area of high pressure settles further south into southern Wisconsin.
The weak cold front pushed through the region this morning bringing north and northeasterly winds into the region. Some of these will spread into the lower elevation through the evening and overnight. Saturday will be fairly similar to Friday, with a chance for afternoon showers and thunderstorms over the mountains that spread out to the lower elevations in the late afternoon and evening.
High pressure currently over Lake Superior will sink toward southern WI on Saturday. Soundings show a lot of dry air in the lower levels so don't think there will be fog elsewhere.
225 PM CDT Fri Jul 28 2017 High pressure currently anchored over Lake Superior will build southward. Thanks to northeasterly winds around the high and a good amount of diurnal mixing, surface dewpoints have been slowly dropping today. 19z/2pm observations show dewpoints still in the lower to middle 70s south of I-70, but only in the middle 60s further north toward the I-74 corridor. as a western CONUS upper ridge/eastern CONUS upper trough pattern dominates.
Overnight lows falling into the mid 60s, possibly cooler in the far east if winds decouple.
119 PM EDT Fri Jul 28 2017 Low pressure will result in showers and a few thunderstorms through part of Saturday.
This is associated with energy rotating around the upper level low centered over southern Michigan. The net result for our area will be a much drier and cooler airmass moving in.
An upper trough will remain near the Keys tonight and through the weekend while a surface to mid-level ridge extends towards the Bahamas from the Atlantic.
The 500mb ridge center has been suppressed to the south and an increasing NW flow is now prevailing over the region. A potent PV max now over southern MI will help to carve out an eastern CONUS trough over the weekend.
Early afternoon analysis indicates the cold front is still to our NW to N, with the wind shift line located generally along/near a line from Little Rock to Memphis, Nashville and Lexington. The cooler and drier low-level air will be slower to arrive, so lows should only fall to the upper 60s/around 70. The cold front will be well to the south of the forecast area by sunrise on Saturday, with high pressure building southward through the day. The northerly flow at the surface will filter in a much drier airmass, with dewpoints dropping into the lower 60s by the afternoon. This airmass will behind the front will also bring some cooler temperatures, with highs barely reaching into the mid 80s.
Cloud coverage will increase overnight ahead of the approaching cold front and several models are showing storms moving into SE AL starting around 08Z.
226 PM CDT Fri Jul 28 2017 224 PM CDT Quiet/dry conditions, with clear to partly cloudy skies and below normal temps expected as high pressure continues to slowly build south across the region. Tighter gradient on the fringe of this high will allow a steady north northeast wind to persist, and support continued dangerous beach conditions through the period. Rodriguez 224 PM CDT High pressure will continue to slowly build across the region Saturday night. Rodriguez High pressure will continue in the region this afternoon and into tomorrow. WEW/ELP 245 AM CDT Broad area of high pressure is centered just north of Lake Superior early this morning resulting in a moderate north to northeast gradient across Lake Michigan.
A mid/upper level high pressure system currently drifting west across S TX is resulting in a hot and subsident airmass. Borderline Heat Advisory conditions are expected on Sat as the upper high continues to shift west across the area leading to highs being a degree or two hotter.
255 PM CDT Fri Jul 28 2017 Cold front that pushed through yesterday now stretches across the TX Panhandle and into northern AR. Even though cold front has moved south into OK, airmass remains fairly moist, especially over the high Plains. This activity should decrease in intensity and coverage as it tracks southeast with the better elevated instability remaining out over the high Plains. Not much is expected to change for Sat through Sun with precip chances tied to the moonsonal moisture along with rich low level moisture remaining over the high Plains. Expecting to see another round of afternoon showers and storms over the high Plains Sat afternoon with this activity pushing east overnight.
333 PM EDT Fri Jul 28 2017 A front will slowly sag south into the Gulf of Maine tonight while high pressure builds in from the northwest. Low pressure moving across southern New England will pass south of the region. Across the coast, the cold front will slowly slide s into the Gulf of Maine this evening. This will continue to bring drier air and much cooler temps tonight. We could be seeing some sites across the far n and w drop back into the lower 40s.
322 PM CDT Fri Jul 28 2017 High pressure was over the region providing partly to mostly sunny skies. The high will continue to move southeast Saturday with a south to southwest surface flow developing.
643 PM EDT Fri Jul 28 2017 A dry front will slowly sag south into the Gulf of Maine tonight while high pressure builds in from the northwest. Low pressure moving across southern New England will pass south of the region. Across the coast, the cold front will slowly slide s into the Gulf of Maine this evening. This will continue to bring drier air and much cooler temps tonight. We could be seeing some sites across the far n and w drop back into the lower 40s.
Convection will increase from North to South Saturday as a cold front approaches from the North.
with continued development expected into the early evening in a warm/unstable air mass ahead of an approaching cold front.
250 PM EDT Fri Jul 28 2017 Tonight through the weekend looks mostly rain free, as high pressure slowly builds down from Canada into the Great Lakes. Highs will be mostly in the low to mid 70s and be accompanied by fairly breezy northerly winds. Saturday night, high pressure builds in across the area with clearing skies and cool temperatures. Lows will be mainly in the low to mid 50s with even some upper 40s possible in the Catskills.
300 PM EDT Fri Jul 28 2017 High pressure building into the region today will dominate the North Country's weather through the weekend with dry weather and seasonably cool temperatures expected. The result will be mainly clear skies and slightly cooler than normal temperatures for late July.
Isolated to scattered showers or thunderstorms remain possible through the afternoon mainly across northwest AR and southeast OK ahead of a cold front pushing through the area. /Issued 1055 AM CDT Fri Jul 28 2017/ Surface cold front currently near I44 as indicated by switch to north winds, however drier air continues to lag quite a bit behind the boundary and likely will not arrive into the area until this evening.
440 PM EDT Fri Jul 28 2017 A cold front was bisecting the area from southwest to northeast late this afternoon. In general we remain under the influence of northwest flow and a fairly stagnant pattern through the period with a mean eastern CONUS trough and western ridge.
The cold front is still to our north with scattered thunderstorms across central Tennessee pushing southward. Muggy conditions continue tonight, south of the front, with lows in the low to mid 70s.
125 PM EDT Fri Jul 28 2017 Low pressure will result in showers and a few thunderstorms through part of Saturday.
Tonight and Saturday Main forecast focus to be on temperatures over the next 24 hours with high pressure in control of northeast WI weather. The 19z MSAS surface analysis showed this area of high pressure extend from the northern Plains eastward into the western Great Lakes region. The high was sending seasonal temperatures and a drier air mass into northeast WI with dew points mainly in the 50s (a few upper 40s north-central/lower 60s east-central). The high pressure to remain parked over the western Great Lakes region tonight, bringing mostly clear skies, light/variable winds and cool conditions to the forecast area.
356 PM CDT Fri Jul 28 2017 (Tonight and Saturday) The upper level ridge that has kept the area warm and rain-free the past few days has started to shift to the west/southwest today. The ridge axis currently extends from the Texas panhandle southeast into north Texas.
258 PM CDT Fri Jul 28 2017 As of 20z, mid level ridge axis continue to retreat westward along the Continental Divide. Slowly progressing cold front was positioned along the Red River valley.
400 PM CDT Fri Jul 28 2017 Digging ERN CONUS trof will aid in sending E-W oriented frontal boundary, near the Red River EWD into TN this afternoon, south and through the forecast area SAT afternoon/evening. Dry weather will continue into MON with the boundary remaining offshore, with at least small rain chances returning late MON into TUE as both GFS/ECMWF depict a weak impulse retrograding WWD TWD the NW Gulf from the weakening upper trof. Better rain chances return for the mid to late week period as the front and associated MSTR retreat north in tandem with a digging Central CONUS trof. 13 High pressure over the western Gulf of Mexico will maintain a light westerly flow through early Saturday.
High pressure is building into the area and will persist through the week. High pressure is currently building into the area.
Storms are expected to track off eastward off the higher terrain into the eastern NEB Panhandle and far western NEB late this afternoon and evening. Of which, storms have developed already in the Black Hills area and in the higher terrain near the Laramie Range as seen on the regional radar display.
1230 PM CDT Fri Jul 28 2017 A line of light showers continues to push southeast this afternoon, ahead of a slow moving cold front. /Issued 1052 AM CDT Fri Jul 28 2017/ Slow-moving cold front to continues to make some swd progress this morning, and associated convection is making very slow swd progress as well.
12Z indicates that the mid level ridge nosing eastward into the Lower Mississippi River Valley has retreated west a bit with lowering geo-potential heights digging into the Tennessee River Valley. Although not reflected well in the higher resolution guidance, given radar trends and the mean high level northwest flow, lower end scattered coverages of showers/storms progged to develop and sink south southeast into the far northern zones thru the remainder of the afternoon. Forecasters anticipate a complex of storms to organize thru the night over the Lower Mississippi River Valley and begin settling southward over the heart of the forecast area by daybreak. The higher coverage of storms look to be setting up along and north of US Hwy 84 thru the night with scattered coverages south.
207 PM EDT Fri Jul 28 2017 High pressure building into the region today will dominate the North Country's weather through the weekend with dry weather and seasonably cool temperatures expected. The result will be mainly clear skies and slightly cooler than normal temperatures for late July. The weekend should be quite pleasant as high pressure dominates. High pressure and dry conditions will continue as we start the work week.
Following latest trends, made temp adjustments across the N/NE to keep things cooler which impacted MaxT for Today. The highest could be across the parishes of LA where readings may peak in the 105-107 range. Latest guidance continues to support the low end severe threat. Additionally, flow associated with the MCV and general midlevel trough, contains 25-35 kts in the 850-600mb layer.
335 PM EDT Fri Jul 28 2017 A front will slowly sag south into the Gulf of Maine tonight while high pressure builds in from the northwest. Low pressure moving across southern New England will pass south of the region. Across the coast, the cold front will slowly slide s into the Gulf of Maine this evening. This will continue to bring drier air and much cooler temps tonight. We could be seeing some sites across the far n and w drop back into the lower 40s.
246 PM CDT Fri Jul 28 2017 Cold front over nrn AR/OK continues to slowly drift swd this aftn. NW flow aloft and a cooler and drier airmass will send us back to temperatures more typical of late spring or early summer through midweek. As the upper ridge retreats well westward over NV, an upper level disturbance in the nw flow aloft will bring better coverage of convection for us in the latter half of the work week. /issued 1230 PM CDT Fri Jul 28 2017/ A line of light showers continues to push southeast this afternoon, ahead of a slow moving cold front.
Dewpoint temperatures currently range from the lower 60s across central Missouri to the lower 70s across far southern Missouri.
1249 PM CDT Fri Jul 28 2017 Most areas should be dry through this evening with continued below normal high temperatures only in the lower to mid 80s. An upper level ridge over the desert southwest is resulting in northwesterly mid to upper level flow across the central plains. Fairly strong influence of the upper ridge will be in place over the weekend.
A short wave trough located over northwest New Mexico will rotate northeast around an upper level high. Showers and isolated storms will remain possible over the high country, Front Range, and nearby plains into Saturday morning. Will have pops in the high chance category for Saturday morning for this wave. Saturday night remains very moist and plenty of monsoonal moisture trapped under the upper ridge.
The potential for freezing rain and then strong winds will be the main impacts.
413 AM MST Tue Dec 12 2017 Upper ridge centered over the Great Basin will retrograde just a bit over the next couple of days, then rebuild towards the end of the week.
Early this morning, the latest fog/stratus satellite imagery loop and surface analysis/observations continue to show a stratus deck moving from north to south, and at the same time propagating eastward, ahead of a low level warm front. Stratus is currently bounded along and east of a line from Rolla to Rugby, and from Harvey to Selfridge. A compact/potent mid to upper low was vividly seen over central British Columbia this morning, moving atop a persistent/highly amplified upper level ridge which stretched from Nevada through the northern Rockies.
High pressure aloft will bring sunny skies, light winds and high temperatures 5 to 15 degrees above normal to northern and central NM today. A weak backdoor cold front will move into the eastern plains Wednesday afternoon and into central NM Wednesday night.
High pressure will shift south of the region this evening and overnight, allowing winds to back around to the west and southwest. Southwesterly breezes are then in store late Wednesday morning and into the afternoon ahead of the next cold front.
Chattanooga Airport, TN 46 27 47 33 / 10 0 0 10 Knoxville McGhee Tyson Airport, TN 44 24 43 30 / 30 0 0 10 Oak Ridge, TN 43 22 42 30 / 30 0 0 10 Tri Cities Airport, TN 42 17 37 27 / 40 10 0 10 TN.
420 AM MST Tue Dec 12 2017 Northwest flow continues over the northern plains, with a persistent upper ridge to the west and trough to the east. A band of low clouds and a warm front stretch from north to south across the central/eastern Dakotas.
SHORT TERM (Now through Wednesday): The latest surface analysis indicates a cold front over central Texas from Carthage to San Angelo to Kermit. This front is in association with deep 500 mb troughiness moving through the eastern half of the United States.
A cold front will move through tonight, shifting the wind to the northwest overnight, but otherwise, no affect on the weather. For the remainder of today, a broad trough draped over the southeast CONUS will maintain westerly flow in the low levels.
322 AM PST Tue Dec 12 2017 High pressure will continue to bring dry conditions along with valley inversions, cold nights, and light winds for the next several days. Inversions should ease by the end of the week as a weak cold front brushes the Oregon border, but no precipitation is expected. The strong, amplified ridge that we have been discussing for over a week now will continue to bring dry weather, mild days, and cold nights through the middle of the week.
A dry cold front is still on track to push across our region this afternoon. Strong cold air advection tonight as high pressure quickly builds in from the west will set the stage for freezing temperatures across much of our interior sections tonight. Southwest winds 20 to 25 knots will veer to the west and then eventually northwest tonight behind a cold front.
High pressure will continue to bring above normal daytime temperatures, cold nights, relatively light winds, and dry conditions through much of this week. A trough may brush Arizona this coming weekend delivering stronger winds and a cool-down in daytime temperatures.
An area of low pressure will track across the area Wednesday into Wednesday night.
Temperature forecast for today appears to be on track, with highs expected to rise into the low 70s for most locations this afternoon. Cold front over northern Florida expected to track through South Florida overnight. I expect low temperatures tonight/Wednesday morning to be a few degrees warmer than last night/this morning due to a more moist lower troposphere and stronger low-level winds. A cold front will move through tonight, shifting the wind to the northwest overnight, but otherwise, no affect on the weather. For the remainder of today, a broad trough draped over the southeast CONUS will maintain westerly flow in the low levels.
725 AM CST Tue Dec 12 2017 Received a couple reports of flurries/freezing drizzle, associated with low level warm air advection. The potential for freezing rain and then strong winds will be the main impacts.
A Winter Weather Advisory remains in effect from 5 am through 10 am this morning for the northern Cumberland Plateau, where up to an inch of snow will be possible, mainly along the higher ridges. The good news is that the coldest surface temperatures during the advisory period will be mainly around 32 or 33 degrees, with road temperatures even a bit warmer than that.
Gusty Westerly Winds This Afternoon Ahead of a Cold Front. Air temperatures have rebounded quickly amidst freshening southwesterly breezes, ahead of an approaching cold front, with recent observations indicating temperatures in the upper 50s or lower 60s at most locations. The currently amplified upper- air pattern never allowed any significant air mass modification after the last cold front, and little moistening will occur today. Satellite imagery and surface observations indicate a nearly cloudless cold front quickly moving east through the Gulf of Mexico and Florida Panhandle.
Cold Front. Another cold front will push, from north to south, across West Central Texas today. This front will bring winds from the north, along with cooler temperatures.
High pressure will continue to bring above normal daytime temperatures, cold nights, relatively light winds, and dry conditions through much of this week. A trough may brush the region this coming weekend, with an uptick in winds and a cool-down in temps expected.
Inversion continues as the upper ridge shifts slightly westward through Wednesday. A weak feature moving over the ridge will increase mid-high level moisture tonight into Wednesday, bringing clouds to areas that have remained clear of the recent stratus. It's slightly cooler in the mountains Wednesday as the upper ridge axis slips eastward, but don't expect much change in the valleys.
/12Z TAFS/ Surface ridging behind this morning's weak cold front could send sustained winds to near 15 knots over Central TX with some afternoon gusts over 20 knots possible. An upper level trough moving across the Great Lakes and Mississippi into Ohio Valleys will drag a cold front across our area early this morning.
Temperatures on the Plateau are finally falling towards freezing, but as we get later in the morning, the forecast soundings start drying out rather rapidly. Cold front has passed through the mid state, with a brisk northwest wind advecting cooler air into Middle Tennessee throughout the day.
A weak cold front this morning will slightly strengthen northerly winds with gusts briefly to around 25KT. A long wave trough moving south across the plains is pushing a weak cold front toward the CWA. The cold front is expected to reach S TX later this morning and shift winds to the north as it continues southward. Highs today will be 2-4 degrees cooler ranging from mid 60s to around 70 under mostly sunny skies.
This will offer more of a warmer flow combined with sunshine. Temperatures will warm up nicely on Wednesday afternoon ahead of another cold front. The positive Pacific North American pattern will persist through much of the week, offering a cold front about every two days. The Arctic Oscillation tightens up, and the Pacific ridge breaks down.
High pressure remains in place, this means low clouds (stratus), areas of freezing fog, and minimal diurnal change in temperatures will continue to be common across many valleys through much of this week.
A narrow "thumb" high pressure ridge has moved over south Florida and the Keys early this morning. Just to the north and NW, increasing westerly flow is noted ahead of the next cold front, which is just starting to sag into the western Florida panhandle. First light visible imagery shows marine cumulus/ stratocu starting to advect into the lower keys as WNW winds begin to increase, though these clouds are eroding as they encounter the cooler shallow waters of Florida Bay farther east.
/Issued 309 AM CST Tue Dec 12 2017/ The initial cold front that passed through the region yesterday has worked well south into TX. The cool weather will be short-lived as winds quickly become south/southwest on Wednesday ahead of yet another cold front. The warmer temps. The aforementioned cold front will push through the area on Wednesday.
High temperatures with cold advection over the area should still reach the low to mid 60s. Overpeck It the wake of this morning's cold front, today's high temperatures will be in the low to mid 60s, some 5 to 10 degrees cooler that yesterday's highs that were in the low to mid 70s. North winds will generally be in a 10 to 15 mph range (maybe occasionally gusty, especially near the coast and offshore) with decreasing speeds as the afternoon progresses when high pressure begins to ridge into the area from the west.
A cold front will pass through Deep South Texas and the Rio Grande Valley today, producing increasing and veering winds initially before they diminish and back later on. /issued 421 AM CST Tue Dec 12 2017/ SHORT TERM (Now through Wednesday): The latest surface analysis indicates a cold front over central Texas from Carthage to San Angelo to Kermit. This front is in association with deep 500 mb troughiness moving through the eastern half of the United States.
317 AM MST Tue Dec 12 2017 Upper ridge centered over the Great Basin will retrograde just a bit over the next couple of days, then rebuild towards the end of the week.
453 AM CST Tue Dec 12 2017 Cold front has just moved south of I-20, with nw winds gusting near 20 kts in its wake.