Aikyam-Lab/Synoptic-Bench huggingface dataset:
116 AM EDT THU SEP 15 2016 Crystal clear skies with high pressure centered right overhead. Large area of high pressure and dry air stretches across the northern Great Lakes back into the northern plains. A fair amount of sunshine across the region today, although cooler air aloft and daytime heating did bring about sct-bkn cloud cover for much of the day. Tonight through Thursday: Minimal worries as high pressure develops across the Great Lakes. Upper low currently over the Rockies moves slowly northeast over the top of the Southeastern US ridge through the week. The low opens Friday as it reaches the US/Canadian border.
Friday, that ridge will be east of us, so southwesterly flow behind it will start to bring in deeper moisture for the weekend. Temperatures should get warmer than today, with highs again around 90.
443 AM MDT THU SEP 15 2016 Broad upper trough axis will move across Colorado today. Poorly defined cold front accompanies the trough. This will bring in air that is a little cooler but quite a bit drier. By this evening skies should be clearing as the trough progresses eastward. an elongated upper level trough of low pressure will stretch from southern California into the northern plains states.
High pressure over the Great Lakes region will build eastward and ridge southward into the western Carolinas through the weekend.
High pressure over the Great Lakes region will build eastward and ridge southward into the western Carolinas through the weekend. while ridging into the western Carolinas. This will continue the moist onshore flow with the highest precipitable water values over eastern SC. Went with the warmer guidance for high temperatures in the mid to upper 80s as upper level ridging builds over the southeastern states. Previous discussion: The GFS and ECMWF indicate high moisture through much of the medium-range period associated with a long- fetch easterly flow south of pressure ridge.
TS Julia is in place just offshore of the SC coast this morning,with weak ridging building back over south FL from the Atlantic. Deep moisture is still in place across the area and will linger through Friday as Julia to the north meanders off the SE Atlantic coast and weak ridging remains across south FL.
409 AM EDT Thu Sep 15 2016 Building high pressure will provide dry weather and seasonal temperatures until the approach of a weekend frontal system. High pressure will support dry conditions and seasonal temperatures today. As high pressure shifts east Friday, some moisture return on low-level easterly flow may bring a stray shower into the ridges Friday afternoon.
Easterly low level flow and subsidence associated with the mid-level ridge axis will make for a dry and pleasant day, with temperatures moderating a bit into the upper 70s to around 80 the farther west you go across the WFO LOT cwa. East-southeast surface winds will support a synoptic forced lake breeze however, which will limit highs to the low to mid 70's along the Illinois Lake Michigan shore. To the west, an upper level trough/closed low will lift slowly northeast from the northern Rockies to the Dakotas through tonight. While warm/moist advection and ascent due to isentropic upglide will gradually increase across the area tonight, the strongest deep-layer forcing will remain well northwest of the forecast area, from the northern Plains to the upper Mississippi Valley ahead of the main upper trough.
142 AM EDT THU SEP 15 2016 Moisture will remain over the region through much of the week in the easterly flow between high pressure to the north and Tropical Storm Julia just south of the area. Kept the highest pops across the southeast Midlands into the CSRA. Followed the guidance consensus for high temperatures in the low to mid 80s and lows in the upper 60s to lower 70s. The GFS and ECMWF indicate high moisture through much of the medium-range period associated with a long-fetch easterly flow south of pressure ridge.
644 AM EDT THU SEP 15 2016 High pressure across the eastern Great Lakes today will shift east Friday.
An upper level ridge will nose into the area today and persist into Friday. So, for the west side valleys, this means mid-upper 80s with some 90s in the lower Klamath River Valley. The low-level flow will be offshore tonight into Friday morning, so upper slopes and ridges, especially from western Siskiyou County into the coast ranges of SW Oregon will be quite dry with occasionally gusty east to northeast winds. Expect another 3-5 degrees of warming on Friday afternoon with highs in the lower 90s here in Medford and near 80 in Klamath Falls. Friday night will be the driest night with poor to moderate slope and ridge recoveries.
It should be another quiet night with high pressure in control and valley temperatures falling into the lower to mid 60s north and upper 60s to around 70 south.
While said high pressure will begin to reluctantly yield, it will be quickly replaced by its mid-level likeness today and tonight. A warmer start to the evening and maintenance of some light winds will keep temperatures several degrees warmer than this current night, with lows largely in the 40s and lower 50s.
IFR ceilings will affect KHOB, but storms could break this lower deck up.
206 AM EDT Thu Sep 15 2016 High pressure over the upper Great Lakes will build south over the region for the next couple of days providing dry weather and cooler temperatures.
651 AM EDT THU SEP 15 2016 High pressure passes to the north today.
319 AM EDT THU SEP 15 2016 A weak cold front will sag south of Pennsylvania this evening. High pressure will bring dry weather and low humidity for Thursday and Friday.
Clouds associated with low pressure aloft over Wyoming will slowly decrease this morning over the Butte/Anaconda region and Lemhi County, Idaho. Otherwise, a building ridge of high pressure aloft will dominate the weather pattern through Friday.
400 AM EDT Thu Sep 15 2016 Quiet conditions can be expected today as high pressure brings dry weather to the area along with near normal temperatures. This high pressure will begin to shift east late tonight into Friday.
304 AM CDT THU SEP 15 2016 Even warmer readings tonight across the Midsouth making it feel more like mid July then September. upper level ridging over the Mississippi Valley will continue to bring hot and humid weather to the area.
Yep, it's another quiet Middle Tennessee morning--with an echo- free radar scope, a few patchy clouds here and there, and mild temperatures mainly from the middle 60s to the lower 70s. With the expectation of a rain-free day today and dry air coming in at the low levels, see no reason why temperatures shouldn't be just as hot as yesterday's readings, which means, perhaps, another 93 deg reading at BNA and another 91 at CKV.
319 AM EDT Thu Sep 15 2016 High pressure over the Great Lakes will build south over the region tonight and Friday providing dry weather and cooler temperatures.
511 AM EDT Thu Sep 15 2016 High pressure and dry conditions will be present today. A warm front will lift northwards across the area on Friday. Cooler and less humid air will be in place across the region today. High pressure will allow for dry conditions. A warm front will lift northwards during the day on Friday.
339 AM EDT Thu Sep 15 2016 In terms of the upper levels a broad upper level ridge axis will swing east across the region. This ridge axis will progress east into the Mid Atlantic by Friday, as a upper level low ejects into the Upper Plains. Surface wise we will see a high pressure to our north across the Great Lakes progress east into the Mid Atlantic by tonight into early Friday. A corresponding cold front will accompany this feature as it tracks across the region.
353 AM CDT THU SEP 15 2016 The center of upper level low pressure will track from Montana into North Dakota today. This is part of a large upper level trough that will track from the Rockies into the central plains by tonight. As low pressure deepens in easternColorado, surface winds will tend to back to the southeast whichshould hold low level moisture in place. With at least some breaksin the clouds, surface instability will increase with the low levelmoisture in place. The cold front and attendant mid-level trough will largely be east of the cwa Friday.
High pressure will strengthen over the northern Great Basin through the weekend, with above normal temperatures by Sat. Upper low shifting east of the region today with drier conditions working into the area from west to east. The upper low that brought widespread rain to the region yesterday will be working northeast into the Dakotas today with drier conditions eventually spreading from west to east across the forecast area this afternoon and Friday.
357 AM CDT Thu Sep 15 2016 Weak ridging over the state, weak low pressure over the (west) central Gulf maintaining an easterly flow pattern and occasional periods of higher Gulf moisture advecting inland will increase the probabilities of precipitation. The presence of this western Gulf low/inverted trough will create just enough instability, when in tandem with greater than 2. Over the next several days, most of the rain will fall across the coastal counties, or where the highest moisture will reside.
133 AM EDT THU SEP 15 2016 A large area of high pressure centered over the western lakes will move across the Great Lakes.
Temperatures will be on a warming trend through the weekend as high pressure slowly builds over the eastern Pacific.
626 AM EDT THU SEP 15 2016 High pressure will maintain VFR conditions with mainly clear skies and light east to northeast winds of 5-6 knots or less.
These dry conditions, combined with light winds and clear skies, will allow for excellent radiational cooling tonight with temperatures falling below freezing in mountain locations. Also, most valley locations in eastern Oregon, including Burns and Baker City will likely dip below freezing tonight.
Upper level low has departed with some lingering clouds slowly moving out of the northeastern corner of Elko county. Overnight lows will be a bit on the chilly side with readings in the low 30s to low 40s. Some weak troughiness will develop over the southwest United States, but no rainfall is expected.
Upper low over western Wyoming expected to clip eastern Montana as it lifts into North Dakota today.
424 AM EDT THU SEP 15 2016 High pressure passes to the north today.
Storms have already fired across eastern New Mexico/western Texas Panhandle early this morning along the southern end of the cold front as upper wave begins to open and eject out of the Northern Rockies. however, overall severe threat associated with the incoming cold front looks to remain west of the CWA, but could see a few stronger storms moving into the northwest corner of the CWA late this afternoon and evening.
143 AM EDT THU SEP 15 2016 High pressure passes to the north today.
516 AM EDT Thu Sep 15 2016 Quiet conditions can be expected today as high pressure brings dry weather to the area along with near normal temperatures. This high pressure will begin to shift east late tonight into Friday.
Will begin to see a drier and warmer pattern develop on Friday and continue into the weekend, as the upper low from Thursday slowly drifts eastward into Minnesota.
SHORT TERM (Today through Friday): NHC is monitoring a broad area of low pressure over the northwestern gulf of Mexico for development over the next couple of days and give this system only a 10 % chance of development.
224 AM PDT THU SEP 15 2016 Fair and warmer weather is expected as weak low pressure aloft covers the West.
The upper level low pressure system over Wyoming will lift into the northern Plains today, leaving a cool and generally dry air mass over Utah and southwest Wyoming. Temperatures will warm by late in the weekend as a ridge of high pressure noses into the region.
Under partly cloudy skies and light east winds, temperatures are averaging in the lower 80s along the island chain. Surface wise, a weak western Atlantic ridge axis extends across extreme south Florida, resulting in mostly east winds near 10 knots except slightly higher on the Florida Straits.
610 AM EDT THU SEP 15 2016 High pressure centered along the Ontario Quebec border will build southeast into New England through tonight before retreating offshore on Friday.
156 AM EDT Thu Sep 15 2016 Building high pressure will provide dry weather and seasonal temperatures until the approach of a weekend frontal system. High pressure will support dry conditions and seasonal temperatures today. As high pressure shifts east Friday, some moisture return on low-level easterly flow may bring a stray shower into the ridges Friday afternoon.
301 AM CDT THU SEP 15 2016 Weak upper ridging over the area early this morning with a closed upper low across the central Rockies. Main jet energy was still south of the closed low with a fairly strong low level jet in the high plains.
135 AM EDT THU SEP 15 2016 A backdoor cold front will settle slowly south through the region today. Tropical Cyclone Julia is forecast to meander near the southern SC coast during the next several days. A cold front analyzed at 02Z from SRN NJ WSWWD across MD and the NRN Virginias will make only slow progress SWD through VA tonight, and will likely lie across SERN VA or NERN NC by 12Z, with no anticipated impact here tonight. Trapped underneath the subtropical ridge extending over the Appalachians, TS Julia is not expected to gain much latitude, expected to meander along the Southeast Coast, with gradual weakening by Friday. Highs slightly cooler owing to the increase in cloud cover.
Upper ridge of high pressure will build over the southeast conus as Tropical Depression Julia continues drifting slowly eastward over the western Atlantic and an inverted upper trough over the western gulf moves slowly westward.
645 AM EDT Thu Sep 15 2016 High pressure over the Great Lakes will build south over the region tonight and Friday providing dry weather and cooler temperatures.
Upper level low has departed with some lingering clouds slowly moving out of the northeastern corner of Elko county. Upper level low has departed with some lingering clouds slowly moving out of the northeastern corner of Elko county. Overnight lows will be a bit on the chilly side with readings in the low 30s to low 40s. Some weak troughiness will develop over the southwest United States, but no rainfall is expected.
645 AM EDT Thu Sep 15 2016 High pressure and dry conditions will be present today. A warm front will lift northwards across the area on Friday. Cooler and less humid air will be in place across the region today. High pressure will allow for dry conditions. A warm front will lift northwards during the day on Friday.
555 AM EDT Thu Sep 15 2016 Building high pressure will provide dry weather and seasonal temperatures until the approach of a weekend frontal system. High pressure will support dry conditions and seasonal temperatures today. As high pressure shifts east Friday, some moisture return on low-level easterly flow may bring a stray shower into the ridges Friday afternoon.
325 AM MDT THU SEP 15 2016 An upper trough will move along the northern Utah and Colorado borders today while its associated cold front cuts through Colorado from northwest to southeast.
The high over the Great Lakes will shift further east today. Southeast winds should allow for slightly warmer temperatures to occur.
401 AM CDT THU SEP 15 2016 A weak RIDGE aloft exists over our region early this morning. The cold front that moved thru our region 24hrs ago has made it to the Deep South. RIDGE aloft and a surface front well to the south with easterly flow. The main difference will be in southeast MO and far southern IL where higher amounts of clouds and the front now being thru those areas should result in a cooler day from yesterday.
325 AM CDT THU SEP 15 2016 Yep, it's another quiet Middle Tennessee morning--with an echo- free radar scope, a few patchy clouds here and there, and mild temperatures mainly from the middle 60s to the lower 70s. With the expectation of a rain-free day today and dry air coming in at the low levels, see no reason why temperatures shouldn't be just as hot as yesterday's readings, which means, perhaps, another 93 deg reading at BNA and another 91 at CKV.
A weak upper level disturbance will move out of the central Rockies and over the High Plains this morning. As upper level heights and thickness values increase, temperatures will be accordingly warmer today by around 10 degrees over Tuesdays highs. A backdoor cold front will push into western Kansas on Thursday as a strong upper level wave moves out of southern Canada into the Great Lakes region.
Later this afternoon high pressure will build across the region which will relax the pressure gradient and allow the winds to calm this evening and overnight take on a northeasterly direction ahead of the next approaching system that will bring a chance of slight snow across the souther part of the forecast area early Thursday morning.
937 PM MST Tue Mar 7 2017 A rapid warmup can be expected over the next couple of days with high temperatures in the lower deserts climbing well into the 80s by Wednesday.
Then another cold front/trough is progged to drop south overnight. Will likely see northwest winds increase again in the wake of the cold front and could reach advisory criteria again. High pressure will move east into the area later in the afternoon.
/Tonight through Wednesday/ The broad upper trough will be swinging through the state tonight as a Northwest flow becomes established over the region for Wednesday. There is some instability and weak forcing pushing across mainly the Northern half to two thirds of the state between 07/21Z and 08/02Z and this will be coincident with some weak waves riding through the flow as the base of the upper trough moves into Eastern Iowa by 00Z. Canadian high pressure will nose into at least the Northern third of the state bringing down some slightly cooler air.
Due to the inversion we will not be tapping the 700 mb winds, but gusts will quickly rise mid/late morning as the low level lapse rates increase to 9. A trough and cold front will swing through on Thursday bringing a reinforcing shot of cooler air to the region.
Front will shift south of the area tonight bringing cooler and drier conditions. Weak High pressure over the region with light and variable winds and daytime heating under partly sunny skies will push max temps into the lower 80s inland and mid/upper 70s at the Atlc Coast as sea breezes will likely move inland from both coasts and merge during the afternoon hours across inland NE FL/St Johns River Basin and enough lingering mid level moisture around to trigger widely scattered showers. High pressure drifts south of the region with light SWly sfc flow developing.
and the expiration of the high wind warning late this afternoon outside of the wind-prone areas will hopefully occur. This will necessitate maintaining the high wind warning in those areas through Wednesday. Over the lower elevations quite breezy especially in the afternoons but the high wind threat looks low. Mainly dry through Thursday outside of the higher mtns where some snow showers should persist through Weds. Warmer temperatures expected Weds with continued mild temperatures Thursday.
1044 PM CST Tue Mar 7 2017 Water vapor imagery this afternoon shows the axis of a large trough sweeping east of Missouri, allowing a northwest flow to spread across the Lower Missouri River Valley, which will persist across the Plains through the end of the work week.
Only cosmetic changes to the grids this evening, primarily dropping the high wind warning headline that expired at 5 pm. Still seeing wind gusts of 40 to 50 mph in the High Wind Warning area, although speeds have been stepping down incrementally for the past couple hours. Will let the High Wind Warning continue through the original expiration. This should produce less wind tomorrow at most locations along with warmer temperatures. A flattened upper level ridge will be over the state with flow out of the NW. WNW flow over the divide with a deepening lee side trough on Thursday will keep downslope winds over the plains.
1151 PM CST Tue Mar 7 2017 Push of drier air associated with cold front should continue to clear out lower clouds overnight. /issued 956 PM CST Tue Mar 7 2017/ The main band of showers and thunderstorms, focused on the outflow boundary, continued to outrun the cold front and was pushing mostly offshore.
May be able to cancel some of the highlights either later this evening or on the midnight shift before their expiration time.
High temperatures today should be a good 10-15 degrees warmer than yesterday on the strength of low level warm advection and increasing heights and thicknesses. With the increasing low level moisture tonight will side with the warmer end for tonight's lows.
Cold front lays across southern South Dakota into northeastern Wyoming into western Montana this morning.
105 AM EST Wed Mar 8 2017 A cold front will cross central North Carolina overnight and early Wednesday.
/issued 724 PM EST Tue Mar 7 2017/ High pressure will continue to push east offshore of the mid-Atlantic coast tonight as a cold front approaches the area. High pressure will continue to weaken tonight as a cold front approaches the area. High pressure builds back into the area behind it through the rest of the week.
257 AM EST Wed Mar 8 2017 High pressure is weakening as progged. The high weakened ahead of an approaching cold front, currently moving into the Florida panhandle this morning. This high will keep the weather mostly quiet and dry through the first part of the weekend, barring some periodic isolated shower activity.
Expect the winds to diminish fairly quickly through the morning hours from west to east as a high pressure ridge moves into the area. That high pressure ridge nosing in will attempt to bring drier air into the area, but think there will be enough mid level moisture around to keep skies from clearing out.
With the cold front from yesterday now south of the CWA, 850 mb low level flow is overrunning the boundary and resulting in isentropic lifting over much of the CWA.
Lows tonight will probably be warmer than MOS guidance due to the lack of snow cover which we usually have at this time of the year.
A tight pressure gradient remains in place from the intense storm system north of the Great Lakes early this morning and high pressure across the Plains. Based on the strong mixing, dew points are forecast to drop to the lower 20s over the west this afternoon. Several concerns in the forecast as a weakly NWrly flow persists through the end of the week until a wave of energy moves out of the Pacific NW and dives into the low over the Hudson Bay. weak ridging over the western half of the country and active NWrly flow over the Midwest.
1223 AM EST Wed Mar 8 2017 Dry and windy today as strong high pressure moves in. Great setup today for strong winds, as a full March sun will warm the surface and cooler and very dry air moves in aloft. The sun will tamper the cooler air mixing down and temperatures will be a few degrees above normal.
320 AM CST Wed Mar 8 2017 Very dry conditions will gain dominate the region with high pressure firmly in control.
Dry conditions are expected across the forecast area today and tomorrow as the cold front responsible for severe storms overnight is now east of the region and high pressure will build into the state behind it.
1255 AM EST Wed Mar 8 2017 A weak cold front will move through the area early Wednesday bringing scattered to numerous showers overnight.
As eastern Canada/CONUS trof dampens and becomes broad over the next couple of days next system /now into the Pacific Northwest/ to bring frontal wave out of Western Plains Thursday and into middle Ohio Valley by late Thursday night.
With sfc ridging having built into the region this evening, winds will remain LT/Vrb overnight, before becoming more ESE 6-10kts after 15Z Wednesday.
WV imagery showing upper low. lifting past the western Great Lakes region into Canada with a trailing cold front pushing into the OH/TN valley. the leading edge of cold front is progged to push into the northern CWA.