Aikyam-Lab/Synoptic-Bench huggingface dataset:
Max temps will struggle to reach the lower 70s along the Volsuia coast but better surface heating across the south will allow lower 80s interior south. A rapid wind shift from the northeast immediately behind the front will increase near 20 knots later today into tonight across the waters as high pressure along the eastern seaboard builds over the area.
/issued 401 AM CDT Mon Mar 26 2018/ Wx map shows low pressure over the TX panhandle, and high pressure over the Eastern U. ridging south and southwestward across the SE U. More of the same weather is expected today with winds picking up by late morning, and mostly cloudy skies, temps reaching the lower 80s. By Tuesday afternoon, the upper level trough digging across the Western U.
The synoptic situation will keep high pressure ridging over the area through Tuesday as the front moves west of the area.
Upper level trough that brought scattered showers this past weekend has shifted south and east into the Southern California deserts. Upper level ridge axis over the eastern Pacific has begun to move into the region, with mostly clear skies now present across northern CA.
Gilchrist Previous discussion: Freezing fog may make another return this morning, especially along the Milk and Yellowstone river valleys and areas from Glasgow east to the North Dakota border. An approaching upper level trough will move across northeast Montana today but am not expecting much precipitation with this, perhaps a chance of snow across Wibaux and Prairie counties. Starting Tuesday, an unsettled pattern will set in across the region, with northeast Montana caught in between a low pressure area across northern Canada and an area of high pressure off of the Pacific coast, with persistent northwest flow aloft throughout.
Generally quiet weather, with warmer than recent temperatures, is on tap for the week. A warm front will bring a chance for rain mainly to the coast north of Cape Blanco and the Umpqua Basin today through tomorrow.
1232 PM EDT Mon Mar 26 2018 High pressure will crest over the area through Tuesday.
Gradient has tightened further between a wave of low pressure off the east cntl Fl coast and a strong 1040 MB high along the mid Atlantic. Strong high pressure will build to the North Today, and to the Northeast on Tuesday.
753 AM EDT Mon Mar 26 2018 Aviation Winds will become southerly in advance of a cold front today and tonight. The south winds will bring in slightly warmer air and rain.
1222 PM EDT Mon Mar 26 2018 High pressure will build southward into New England today and will remain put through Tuesday setting the area up with a few sunny days.
1043 AM EDT Mon Mar 26 2018 Heights are rising at all mandatory levels across the Florida Peninsula (see regional 12Z RAOB analyses), highlighting the amplifying ridge complex centered to our west and the intensifying anticyclone to our north. Temperatures are in the lower to mid 70s, with dewpoints in the mid 60s. A back door 'trough' will slide southwest through the Keys overnight, with a brief window of shower chances accompanying the significant wind surge. Strong easterly breezes are expected Tuesday and Tuesday night as the the high matures over the Eastern Seaboard.
801 AM EDT Mon Mar 26 2018 Warmer temperatures are expected this week. Otherwise, little else to scrutinize with high pressure still in control through tonight. Temperatures will be warmer than they have been over the last couple of days, but will still remain about five degrees below seasonal values. Precipitation will spread east from low pressure over the Plains tonight. Cloud cover moving in earlier should keep western counties slightly warmer and all rain, while locations generally to the north and east of Pittsburgh could have surface temperatures drop low enough for precipitation to start as freezing rain.
Upslope stratus across the Laurel Highlands has morphed into dozens of thin cumulus cloud streets running parallel to the anticyclonic southeast flow around sprawling high pressure covering the northeastern states and southeast Canada. Have placed the highest POPs of 80-90 pct across the northwest counties, closest to axis of low level jet over the Grt Lks, with only a slight chance of rain reaching the southeast counties by late day.
1247 PM EDT Mon Mar 26 2018 Warmer temperatures are expected this week. Sunny conditions this afternoon are expected to persist into the evening as the upper-level ridge axis passes overhead. Strong southeasterly flow will bring clouds, and cooler temperatures along the eastern facing slopes of the higher elevations. Meanwhile, clouds associated with the warm front will move into upper Ohio Valley. At this time, expecting precipitation associated with the warm front to be predominatly rain, beginning in the pre-dawn hours. As a result, confidence remains too low to issue any Winter Weather Advisory for patchy light freezing rain near dawn Tuesday. The first such break should come Tuesday evening/night in the wake of the lifting warm front.
1107 AM CDT Mon Mar 26 2018 Minor changes to the current forecast which was to raise the high temperature for the afternoon for areas along and to the South of Interstate 20 which may not affect the wording in the zones. /issued 354 AM CDT Mon Mar 26 2018/ Swly flow aloft continues to take shape across our region, as large-scale upper trof digs sewd across srn CA. However, as we move into Tuesday, a slow-moving cold front will begin to serve as a focus for more widespread convection, initially across portions of N TX/central OK. This will gradually spread ewd into our region as the now closed upper low/cold front inch ewd.
1217 PM EDT Mon Mar 26 2018 Warmer temperatures are expected this week. Otherwise, little else to scrutinize with high pressure still in control through tonight. Temperatures will be warmer than they have been over the last couple of days, but will still remain about five degrees below seasonal values. Precipitation will spread east from low pressure over the Plains tonight. Cloud cover moving in earlier should keep western counties slightly warmer and all rain, while locations generally to the north and east of Pittsburgh could have surface temperatures drop low enough for precipitation to start as freezing rain.
1202 PM EDT Mon Mar 26 2018 High pressure this afternoon. Warm front Monday night/Tuesday.
850mb flow shows deep moisture axis moving north ahead of the low, across Ar into MO and lifting over the boundary. Air mass across our CWA is rather dry at the moment, with dew points in the low-mid 20s in most cases. Most of the models are in agreement with a cold front pushing through much of the CWA on Tuesday.
Highs could well remain in the 50s in the OK PH while reaching the low to mid 70s in the south central TX PH.
1016 AM CDT Mon Mar 26 2018 Snow and occasional light freezing precipitation continues across the northern and eastern parts of the area. Most of the area is seeing readings right around the freezing mark and we have had drizzle/ice/fog for a good part of the CWA, while rain/ice/snow is moving in from the west/southwest and we also see freezing rain/snow showers over the southern Coteau. Temperatures today will struggle to warm with the stratus in place, and while most should get just above freezing, this is not universal, with the Coteau the main area of focus though this is not exclusive. The split positive tilt mid level trof across the central and western CONUS at the beginning of the period should consolidate into a full latitude trof across the central CONUS during the period.
921 AM CDT Mon Mar 26 2018 Showers, and a few thunderstorms, continue across northern portions of the Mid-South this morning along and north of an ill- defined warm front. Cool NE surface flow prevails across most of the Mid-South with temps ranging from the upper 30s toward Paris TN to the lower 50s over parts of North Mississippi. Expect scattered to numerous showers and a few thunderstorms this morning as the surface front lifts back north as a warm front. An upper low over the SW US will continue to move east tonight with the upper ridge over the SE US building. Some warm advection showers may develop over western sections ahead an approaching cold front.
High pressure slides off the Mid Atlantic Coast Tuesday night, allowing warm southerly/southwesterly flow to reestablish, bringing near normal temps back into the forecast Wed - Fri. Mainly a temperature game today, with plenty of sun and a cool northerly/northeasterly breeze extending down ridge from the New England High. 1038+ mb high pressure over SE Canada will extend down the eastern seaboard today and tonight.
902 AM EDT Mon Mar 26 2018 High pressure will crest over the area through Tuesday.
1017 AM EDT Mon Mar 26 2018 High pressure will build southward into New England today and will remain put through Tuesday setting the area up with a few sunny days.
A dry low pressure system will move through the region early this week bringing slightly below normal temperatures through Tuesday and breezy to windy conditions.
Temperatures have already warmed into the lower to middle 70s, with highs around 80 or into the lower 80s. /issued 401 AM CDT Mon Mar 26 2018/ Wx map shows low pressure over the TX panhandle, and high pressure over the Eastern U. ridging south and southwestward across the SE U. More of the same weather is expected today with winds picking up by late morning, and mostly cloudy skies, temps reaching the lower 80s. By Tuesday afternoon, the upper level trough digging across the Western U.
Low-level wedge of cool air pushed into the region overnight as high pressure builds down the lee of the Appalachians. 12Z KTAE sounding shows an 8C inversion at 2kft indicating the depth of the low-level airmass.
240 PM CDT Sat Jul 8 2017 Weak cold front now near the TN/MS border will continue to push through the CWA by mid evening.
At the surface, areas of low pressure associated with the large-scale trough sit off the Nova Scotia coast and back into southeast Quebec as well. Troughing extends from this broad area of low pressure down the Eastern Seaboard and is reinforced across the Southeast by westerly flow over the Appalachians. Storms should dissipate quickly around sunset, with lows falling into the low to mid 70s overnight.
As for temperatures, will see lows in the 60s tonight and highs on Sunday a bit warmer than today, in the upper 80s to low 90s. For Mon thru Wed, not much has changed with upper ridge building into the area with swly low level flow. However, guidance is beginning to suggest the ridge may not be as strong as in prev cycles. As suggested yesterday, mdls continue to break down the ridge on Thurs allowing a cdfnt to drop into the region along with TSRA. There is still some uncertainty regarding timing and placement and have therefore kept PoPs on the low side for now. Have still trended warmer for temps on Thurs due to some question of morning convection, tho not as warm as Wed.
122 PM EDT Sat Jul 8 2017 A shower or thunderstorm will be possible in spots today before drier, less humid and slightly cooler air arrives tonight.
414 PM EDT Sat Jul 8 2017 Latest IR imagery from this afternoon shows broad troughing over the Tennessee Valley and an elongated upper level high pressure ridge over the Western Atlantic waters, near Bermuda. The flow pattern into South Florida is from the south southeast, with the region currently sandwiched between the influence of the Bermuda high and a weak upper level low in the eastern Gulf. With high pressure dominating near Bermuda from early to mid week, rounds of increased moisture will advect over the peninsula from the southeast through the period.
349 PM CDT Sat Jul 8 2017 Upper level ridge was located over the Rockies with a short wave over eastern ALTA. Upper level ridge will shift east over the forecast area and flatten by Tue morning. Upper level low over the northeast Pacific will also move east and follow the upper low.
345 PM EDT Sat Jul 8 2017 Dry conditions will continue tonight through Sunday as a ridge of high pressure settles across the area. This high will shift to the east Sunday night allowing moisture to be drawn back northward.
Water vapor loop indicated upper level trough was rotating through Ontario. Trough will send a cold front south and backdoor the northeast zones late this afternoon and into the evening. Weak high pressure remains in control today, leading to mostly sunny skies and temperatures in the 80s. Boundary/cold front expected to be across the southern FA during peak heating.
Early this morning the cold front was from near KFSM to near KRUE to east around KJBR. Today Through Sunday Night Forecast will start with radar convection trends, with the highest over northwestern to north central AR to east central areas. The convection will gradually move southeast, with the highest rain chances over central to eastern areas. A northeast wind flow will be seen to the northeast of the front and drier and a bit cooler temperatures. The upper high pressure ridge starts to build into the region, and lower the chance of rain, while warm temperatures.
252 PM MDT Sat Jul 8 2017 Upper level ridging will remain over the region through Sunday.
400 PM EDT Sat Jul 8 2017 Quite through the afternoon and overnight as passing mid level trough axis continues to usher cool and dry air in to the region. A broad trough has set up across much of the Midwest and Great Lakes with generally weak flow throughout the trough. On that note, a cold front currently dropping through Ontario with a line of convection will slow forward progress as it reaches northern MI Sunday.
Current temperatures continue to be about 1 to 5 degrees warmer than this time yesterday for many areas. The Delta breeze is kicking in this afternoon (gusting to 28 mph at Fairfield), though, bringing cooler temperatures to influenced areas including the Delta and Sacramento metro area. An upper trough approaches the area on Sunday, bringing a little cooling across the area. Sunday afternoon temperatures will be cooler, but still hot.
140 PM EDT Sat Jul 8 2017 A shower or thunderstorm will be possible in spots today before drier, less humid and slightly cooler air arrives tonight.
Cold front moves through this evening with subsidence and clearing conditions in its wake. High pressure and a drier airmass will result in much lower relative humidity on Sunday afternoon leading to a mostly sunny and comfortable day.
325 PM MDT Sat Jul 8 2017 The upper high has shifted from the 4Corners to SW Utah over the past 24 hours according to this morning's H500 hand analysis. Sunday the high shifts back toward the 4Corners region by the afternoon with lighter winds returning aloft.
Upper level flow converging across southeast Georgia and northeast Florida today as the upper level ridge remains across the Atlantic, and an upper level trough digs southward across the Southeast.
145 PM EDT Sat Jul 8 2017 Not much too talk about today as high pressure only slowly yields to a cold front dropping southeast out of Canada. Surface cold front continues to exit eastward away from Michigan early this morning. with the upper level trough axis still holding over Michigan. Fast-moving cold front will drop SE thru Ontario today.
240 PM CDT Sat Jul 8 2017 Quiet weather will continue through tonight as high pressure gradually slides to the southeast.
209 PM EDT Sat Jul 8 2017 A cold front will finish moving through the area this afternoon, with a diminishing chance of showers and isolated thunderstorms. Cold front over western NY will drop south and east this morning bringing showers and isolated thunderstorms. Secondary upper wave and heating instability may linger a few showers, especially over the higher terrain, through the day. Sfc temps will rise fairly quickly after sunrise as a mid-lvl ridge nudges in from the south. This mid-lvl ridge will be just enough of an influence to keep the region dry for the day.
109 PM EDT Sat Jul 8 2017 Showers and thunderstorms are developing across the area ahead of a cold front this afternoon.
1106 AM MDT Sat Jul 8 2017 Vast recycling of convection in full swing as the strong upper level ridge over the area remains parked. Daily convection around the edges of the ridge has slowly, but steadily improved moisture profiles within the interior of the ridge. Today should be a near repeat of recent days with diurnally driven storms developing over the higher terrain by midday and then drifting or sending outflow boundaries out across the valleys. This start getting a bit more interesting early in the workweek as the high shifts eastward.
Tonight and Sunday: High pressure is forecast to persist across the area through Sunday with continued warm to hot temperatures continuing.
High pressure across the area will slowly shift into the Ohio Valley this period. A return flow sets up on the back side of this high for Sunday with a boost in the temps expected. 925 temps reach the 21-23c range so highs likely back into the low/mid 80s.
high pressure will remain in place over the Great Basin and Utah. Temperatures will be cooler this afternoon with highs in the upper 80s to lower 90s across the lower elevations. the upper level high to the west will begin to build eastward into western Colorado. S upper high across UT and into eastern CO which should tail back pops, particularly across the southeast plains Sunday. Still enough residual moisture within the ridge for another round of isolated to scattered thunderstorms across the mountains, with the isolated stronger cells capable of producing locally heavy rainfall, gusty winds and lightning.
Drier air will filter in behind the cold front with dewpoints dropping into the lower 60s by this evening. Highs today will top out in the lower to mid 80s under partly cloudy to mostly clear skies. Lows tonight will generally be in the lower to mid 60s, but a few upper 50s are not out of the question. For the work week the lower Ohio Valley will generally be under northwesterly flow aloft. Broad ridging will try to build in across south central KY during mid week and shift the upper level flow to more quasi-zonal. With dewpoints rising to around 70, lows will be in the lower 70s by the end of the week. Winds will start from the northwest and then become more variable overnight as high pressure moves over the Ohio Valley.
125 PM CDT Sat Jul 8 2017 Upper ridge centered over the 4 Corners region this morning extends eastward across TX to the Gulf. This ridge will expand and contract over the coming week but remain entrenched over the west.
345 PM CDT Sat Jul 8 2017 High pressure at the surface continues to reside over the northern Gulf of Mexico.
321 PM EDT Sat Jul 8 2017 With any lingering showers ending in the evening, weak high pressure will yield a pleasant second half of the weekend.
245 PM EDT Sat Jul 8 2017 A cold front will approach central NC from the northwest this afternoon, moving across the region this evening. Weak shear, very high freezing level, and progressive movement will minimize other severe threats. Overnight mins will range from the mid 60s northwest to the lower 70s southeast.
Strong high pressure aloft will remain the dominant feature across the western states through the weekend.
Models continue to advertise that a ridge of high pressure positioned over the Great Basin will remain in place through Sunday resulting in hot temperatures and isolated to scattered afternoon showers and thunderstorms. A low pressure trough will move into WRN Canada Sunday as the Great Basin ridge begins to break down.
A strong mid level ridge continues across the western U. High temperatures will come in near seasonal values, generally in the low 90s inland and mid/upper 80s along the coast. upper level trough of late will gradually weaken and lift out to the northeast early in the week.
231 PM CDT Sat Jul 8 2017 Nw flow aloft continues across our region again today, as the upper ridge remains anchored over the wrn CONUS and an upper trof lingers over the ern CONUS. Upper ridge to begin nudging ewd in the wake of the E Coast trof, as we move into the new work week. Under the influence of the ridge, temps will likely begin to inch upwards into the mid 90s areawide by mid to late work week.
Current temperatures continue to be about 1 to 5 degrees warmer than this time yesterday.
Daytime heating should aid in scattered to numerous tstms by this aftn, especially over the nrn and ern half of the CWA, as a weak front/trof drift swd.
Local heavy rain may occur with storms, especially if the lower atmosphere moistens up after initial storms move through. It will continue to be hot but clouds will keep high temperatures in the lower to mid 90s.
329 PM CDT Sat Jul 8 2017 In the lull between yesterdays cold front and the next storm system moving into the midwest later tomorrow. Mostly clear skies under the ridge with temperatures dropping into the 60s.
535 PM EDT Sat Jul 8 2017 Scattered showers will end this evening with an exiting cold front. Dry and less humid weather is expected Sunday under high pressure.
108 PM EDT Sat Jul 8 2017 High pressure tonight and Sunday. A high pressure system will build across the area overnight. The high pressure system will remain on Sunday, with just some fair weather cumulus expected. Strengthening southwest flow in the lowest levels will bring in above average temperatures and surface dew points reaching the low 70's through the work week. After the fog dissipates Sunday morning, a high pressure system will provide VFR cumulus.
254 PM CDT Sat Jul 8 2017 A "gap" in thunderstorm coverage exists along the cold front, largely due to high clouds limiting heating/instability and weak convergence. Better convergence has resulted in numerous thunderstorms along and south of a pre-frontal trough that was tracking southeast into west central and central AL into north GA.
141 PM EDT Sat Jul 8 2017 High pressure will bring mainly dry weather today through Sunday.
226 PM CDT Sat Jul 8 2017 Increasing heat and humidity are on tap for the week ahead as upper-level ridging builds eastward and the thermal ridge axis bulges into the central and then eastern Plains.
As of 08z Friday morning, two weak mid level perturbations were working their way south and eastward down the eastern periphery of the H5 ridge. Short and medium range guidance suggests the wave itself will stay north of the CWA, as the H5 ridge axis builds across the central and southern Plains. At the surface, an area of low pressure was positioned across eastern CO.
515 PM EDT Fri Sep 8 2017 A weak area of low pressure will swing across the Northeast through the first half of the weekend.
217 PM CDT Fri Sep 8 2017 Models show high pressure will remain over the Great Lakes region through the weekend.
230 PM EDT Fri Sep 8 2017 High pressure will extend across the state through tonight. A dry cold front will move south through the area late Saturday into Saturday night.
590dm high pressure area expands northward from Texas into Colorado and perhaps Wyoming.
1258 PM CDT Fri Sep 8 2017 Cool high pressure centered over the Tennessee Valley will remain nearly stationary today as a second high moves southeast out of Canada into the Great Lakes Region. Missouri and Illinois will be on the western periphery of these two systems and clockwise flow around the highs will bring us light southerly flow today and tonight. The south wind combined with plenty of sunshine today will bring warmer temperatures to the region today. Expect highs to be between 5 and 10 degrees warmer in the upper 70s to mid 80s, which is right around seasonal normals. Tranquil weather continues tonight under the influence of low level ridging. The warmer temperatures this afternoon and continuing light southerly flow tonight will translate into warmer low temperatures tonight.
439 PM EDT Fri Sep 8 2017 High pressure north of the forecast area will direct dry air into the area through Saturday night.