Aikyam-Lab/Synoptic-Bench huggingface dataset:
/issued 338 AM CDT Tue Oct 17 2017/ (Today and Tonight) Weak northwest flow aloft over our area will become westerly by early Wednesday morning, as an upper ridge over the southwestern CONUS is suppressed south into Mexico and South Texas.
300 PM EDT Tue Oct 17 2017 High pressure will maintain dry weather and warmer than normal temperatures through the weekend.
Tonight this system will push east out over the Canadian plains to Manitoba, dragging a cold front across the Dakotas overnight. Wednesday is of bigger concern, with the cold front shoving east across the forecast area during the day. Mixing techniques imply that RH values could dip into the lower 20s tomorrow afternoon over parts of northern Minnesota, with higher values farther east. The area of high pressure will continue to dominate the region through the end of the workweek.
230 PM CDT Tue Oct 17 2017 A cold front will sweep across the region late tonight and Wednesday morning. Temperatures, though still above average for mid October, will be cooler on Wednesday with highs topping out in the mid to upper 60s. Right now, it does not appear as though the lowest RH, around 20 percent, will coincide with the strongest winds. The period begins Wednesday night with an upper level ridge building into the region with surface winds becoming southerly.
248 PM EDT Tue Oct 17 2017 High pressure will remain in place over New York and Pennsylvania for the remainder of the week with a gradual warming trend and dry weather expected. The cold temperatures this morning are the main focus in the near term with high pressure dominating the region through the middle of the week and beyond. Temperatures today will be roughly 5 to 15 deg warmer than yesterday.
106 PM EDT Tue Oct 17 2017 High pressure will remain over the area during the rest of the week. The dry pressure ridge to our northwest will dominate. Light winds and clear skies will support strong net radiational cooling tonight but the cooling will be limited somewhat with the ridge axis northwest of the region helping to maintain a little mixing. Expect low temperatures mainly in the lower 40s as indicated by the guidance consensus although temperatures in the normally colder locations will likely dip into the mid to upper 30s. The models show a significant temperature-dew point spread plus dew point temperatures remaining above freezing. We included just patchy frost in the forecast mainly in the northwest section closer to the ridge axis and the potential for a longer period of calm winds.
Continued very warm with afternoon highs overachieving especially to the lee of the Buffalo Ridge in southwest MN.
Upper high pressure and dry, westerly flow aloft will continue over southern Colorado through Wednesday with more unseasonably warm weather expected.
141 PM EDT Tue Oct 17 2017 Upper level flow out of the wnw will continue through this afternoon before a trough moves through the northern plains tonight. Wednesday, ahead of an approaching cold front temperatures are expected to climb 15 to 20 degrees above normal as low-level warm air advection spreads northward across Upper Michigan.
Southwest winds will become even more gusty this afternoon as the pressure gradient across Illinois tightens between high pressure to our southeast and low pressure to the northwest. High pressure ridge is still in place, with the axis stretching from the Southern Plains to New England. This morning is slightly warmer than yesterday, and the beginning of a warming trend through the week. Tonight will be a couple degrees warmer than this morning. Latter half of the work week continues the warming trend with temperatures considerably warmer than climatology.
High pressure will build across the area with fairly clear skies for the next 24 hours. Plenty of radiational cooling in place tonight once again so 40s will be the rule across the area with a few upper 30s in our northern most locally cooler spots. For tomorrow, we will once again see a fairly clear day with highs a few degrees warmer as heights begin to increase over the area.
Fall weather has finally arrived, as cooler air behind the surface front that moved through the region yesterday has settled into the area this afternoon. Mostly clear skies will promote excellent radiational cooling, allowing temperatures to fall into the low to mid 50s region wide, with upper 50s along the coast.
Will be very warm for mid October, 15 to 20 degrees above normal with highs in the mid 70s along the valley and a touch cooler elsewhere.
Sunny and warmer today as high pressure covers most of the eastern states.
140 PM EDT Tue Oct 17 2017 Cool and dry high pressure will build into the Mid-atlantic today. The high pressure system will moderate and persist into the first part of the weekend. A cold front will approach the region late in the weekend. Aside from some patchy thin jet streak cirrus across eastern NC, expect abundant sunshine with a steady northerly breeze of 6 to 10 kts, that will occasionally gust into the lower teens. Highs Wednesday a good 5 degrees warmer than Tuesday, ranging from upper 60s to lower 70s.
With clear to mostly clear skies and light winds, good radiational cooling will drop temps down into the low/mid 40s.
Temperatures are generally ranging from the low to mid 60s with dewpoints in the upper 30s to low 40s. High pressure over eastern Kentucky and West Virginia has kept surface flow relatively light. Should see temperatures falling into the low 40s to upper 30s by sunrise tomorrow, with cooler temperatures in sheltered areas and valleys where patchy frost could develop again. 850mb flow begins to veer around to the southwest tomorrow afternoon and advect in some slightly warmer air. As a result, afternoon high temperatures should be about 3-5 degrees warmer compared to today. The warmer temperatures will also create a strong cap around 850mb, and keep any cloud cover limited to just some passing cirrus. Temperatures tomorrow night will be cool once again, but with slightly higher winds expected through the lower atmosphere, lows should fall into the low to mid 40s.
High pressure will remain anchored over the Ohio river valley thru the short term forecast period.
Upper trof that moved across the region early yesterday is now located along the eastern seaboard lifting to the east northeast through Wed afternoon. Aloft an upper ridge of high pressure located over the sw conus and northern Mexico is progged to shift east, reaching the lower plains states, much of Texas, and the western gulf through Wed afternoon. A light to moderate northeasterly flow mostly over the lower half of the forecast area will continue through early Wed then diminish better during the late morning and afternoon hours.
Weak SFC-H85 CAA should result in cooler temperatures north of I-70 Wed afternoon, particularly in southwest NE and northeast CO where highs are unlikely to exceed the lower 70s.
Temperatures on Wednesday will be a bit cooler, in the 60s, and northwesterly winds will be breezy across the SD plains. The upper ridge will rebuild for the end of the week, with continued dry weather and temperatures warming back into the 70s and lower 80s.
Forecast highs for this aftn were raised to the upper 60s away from the glacial ridge, but have already reached 70 in many locations by 19z. This cyclone will track across south-central Canada through Wednesday, lifting toward James Bay by Wednesday night and ensuring a stout southwest gradient through tomorrow. Conditions otherwise unchanged, so the forecast is modified persistence - went warmer than all available guidance for highs - about 2 degrees warmer than today, or low 70s. Orphaned cold front attendant to the James Bay low will ease through the area Wed night into early Thurs.
Meanwhile, upper ridging will be moving our way and with 850 mb temps returning into the 13c-15c range, a max temp warming trend is on tap.
Winds will diminish tonight but remain up enough to keep temperatures a bit warmer than this morning. On Wednesday, will see highs between 5 and 10 degrees above normal for this time of year, in the low to mid 70s. Stronger sly flow returns to the area on Fri as the upper pattern becomes more amplified with ridging over the CWA. Thru this period, have trended twd the warmer guidance with mostly clear skies and sly flow.
145 PM EDT Tue Oct 17 2017 Aviation A large area of high pressure over the Central Appalachians will remain nearly stationary over the next couple of days. The high pressure system setting up over the Central Appalachians will remain nearly stationary over the next couple of days. There will be a cold front dropping down from the northwest on Wednesday. The low pressure system associated with this front will be rather deep with sub 980 mb pressure readings as it tracks eastward through the Canadian Prairies through Wed. a tight pressure gradient will set up between the low and high pressure systems.
On the heals of this front, high pressure is building across the eastern United States.
With the lower trop on the dry side, we tended to forecast a slightly greater diurnal range than what guidance and the model blends offered. Expect one more chilly night in the lower 40s, with the possibility of fog forming over the warmer waters of lakes and rivers.
157 PM EDT Tue Oct 17 2017 A weak cold front is slowly approaching the area, helping to enhance the chances for rain, and maybe a few thunderstorms. Storm chances are on the low end, so only VCSH in the TAFs for now. /issued 955 AM EDT Tue Oct 17 2017/ A weak cold front is still making its way towards South Florida. /issued 327 AM EDT Tue Oct 17 2017/ SHORT TERM (TODAY THROUGH WEDNESDAY): An upper level trough over the southeast US is associated with a surface cold front boundary moving through northern Florida. The cold front will move into South Florida later tonight before stalling and washing out across the region Wednesday. Even though this is a cold front we will not see any significant cooler air as temperatures will remain around normal.
1039 AM PDT Tue Oct 17 2017 Strong winds will develop as a cold front moves through the region today.
insuring another chilly night or two before more significant southerly low-level flow returns late this week as the ridge slides east.
335 PM EDT Tue Oct 17 2017 High pressure remains over the Mid Atlantic region through the remainder of the week with temperatures gradually moderating. The current surface analysis shows ~1028mb high pressure centered over the low Potomac River. The high remains over the region tonight resulting in ideal radiational cooling conditions with clear, cool, and dry conditions expected.
17/12Z TAF CYCLE VFR conds wl prevail thru the PD as high pressure conts over AR. The high is fcst to weaken as the period progresses, which will allow S/SE winds to return later in the PD.
Overnight lows will range from the upper 40s to low 50s across the Big Country and Concho valley, to the low to mid 40s across the I-10 corridor. The warming trend will continue Wednesday as the area remains under the influence of an upper level ridge and southeasterly flow at the surface. Expect temperatures to quickly warm into the low to mid 80s under clear skies.
307 PM EDT Tue Oct 17 2017 High pressure will dominate regional weather conditions through the end of the week with fair and mild to warm temperatures expected by late October standards.
A strong short wave and low pressure system will pass well north of the forecast pushing through a dry cool front Wednesday morning. Max temps tomorrow will be cooler but still above seasonal normals with highs in the 60s. Diminishing winds Wed night in wake of earlier cold fropa as high pressure builds into central plains. Another cold front would swing through during the first part of the day but as before, the bulk of any precipitation is likely to remain southeast of the region as lee side cyclogenesis occurs over the central CONUS. Critical fire weather conditions are expected to develop Wednesday behind a cold front as strong winds and low relative humidities values create a potentially dangerous fire weather set up.
/Issued 1056 AM EDT Tue Oct 17 2017/ Temp/dewpt trends on track with ridge-dominated fall-like regime finally in place.
Late tomorrow a weak trough will approach from the west and cross our northwestern counties by the evening, but only a few clouds are expected and no precipitation, with light winds shifting to southwest and little to no cold air advection.
248 PM EDT Tue Oct 17 2017 Dry high pressure with cool mornings and warm afternoons, with temperatures moderating through the weekend.
351 PM EDT Tue Oct 17 2017 An upper level ridge will build into the region and bring very mild temperatures to the area over the next several days.
255 PM EDT Tue Oct 17 2017 Cool and dry high pressure will build into the Mid-atlantic today. The high pressure system will moderate and persist into the first part of the weekend. A cold front will approach the region late in the weekend. Aside from some patchy thin jet streak cirrus across eastern NC, expect abundant sunshine with a steady northerly breeze of 6 to 10 kts, that will occasionally gust into the lower teens. Highs Wednesday a good 5 degrees warmer than Tuesday, ranging from upper 60s to lower 70s. High pressure will dominate through the weekend, with a very gradual warming trend through the period.
A broad upper-level trough continues across the eastern U. The Nature Coast will likely be a bit cooler and drier still, with lower rain chances.
141 PM EDT Tue Oct 17 2017 High pressure will remain in place over New York and Pennsylvania for the remainder of the week with a gradual warming trend and dry weather expected. The cold temperatures this morning are the main focus in the near term with high pressure dominating the region through the middle of the week and beyond. Temperatures today will be roughly 5 to 15 deg warmer than yesterday.
A Pacific system and associated surface cold front will move rapidly across the Pacific Northwest today. Winds will increase across the area ahead of and behind the cold front. Strongest winds will be over the Columbia Basin and adjacent valleys, as well as over the mountain ridges. Wind advisories are currently out for the Kittitas and Yakima valleys, the lower basin and the northern foothills. A cold front will move across the area today, ushering in sustained winds of 15-25kt and gusts of 25-30 kt at TAF sites today.
Expect winds to be strongest this evening ahead of the cold front with gusts to 60 mph from Livingston, east to the Beartooth Foothills, and north from Big Timber to Harlowton and Judith Gap. Winds are expected to diminish behind the cold front late tonight. Wednesday is expected to be a touch cooler with highs in the 60s to near 70 degrees and overall lighter winds.
115 PM EDT Tue Oct 17 2017 High pressure will build in from the west this morning then hold south of New England through Wednesday.
348 PM CDT Tue Oct 17 2017 A nice fall day across the forecast region as high pressure remains fully in place over the eastern United States and this is the main driver of the forecast over the short term.
Tomorrow, a fast-moving upper level trough will enter British Columbia and track into central Manitoba by mid-day tomorrow. This will push a weak boundary into our CWA; the only impact to our region will be a lack of wind tomorrow afternoon as the trough axis moves through. Highs tomorrow should reach the lower 80s, and will result in another tranquil, fall day.
Broad high pressure will remain in control across the area through the week into the early portion of the weekend, bringing dry pleasant weather with gradually warming temperatures to central Indiana.
254 PM CDT Tue Oct 17 2017 Tonight and Wednesday: Strong high pressure ridging will prevail over the area through the period. For tonight, strong radiational cooling and light winds will allow for temperatures to fall into the low/mid 40s across the area.
Slightly lowered temps and dewpoints accommodate for current observational trends, but still expecting temperatures to be a few degrees warmer than yesterday with highs in the upper 60s/lower 70s. High pressure at the sfc is still xpcted to become more centered along the Mid Atlantic coast, as sfc flow into the region veers to the E/SE. Another clr/quiet night is xpcted across the local area, with seasonably cool lows again dropping into the lower/mid 40s for most locations. Upper ridging is then xpcted to build across the SE states starting Thu, with afternoon highs xpcted to be well into the mid 70s following lows that morning predom in the mid 40s. This high, along with upper level ridging in place will continue a stretch of dry weather for the region.
336 PM EDT Tue Oct 17 2017 A weak cold front will cross the region late tonight and early Wednesday morning. A ridge of high pressure from the Ohio valley will cross the region later Wednesday. Otherwise, ovrngt lows will be sig milder across the Rgn due to cld cvr and a SW breeze, which will become NW by erly Wed morn as a weak cold front crosses the Area behind the passage of the upper s/wv-trof axis. Whats left of any cool air behind this cold front will be quickly moderating during the day Wed as weak cool llvl advcn becomes neutral to weak warm advcn by Wed aftn under msly sunny skies, allowing aftn hi temps to reach a few deg warmer than this current aftn with a Wrly breeze. Warm front lifts north of the area Wednesday evening.
Lows will be in the 40s with a good chance for lower 50s along the Buffalo Ridge where stronger southwest winds will be possible.
303 PM EDT Tue Oct 17 2017 High pressure remains over the Mid Atlantic region through the remainder of the week with temperatures gradually moderating. The current surface analysis shows ~1028mb high pressure centered over the low Potomac River. The high remains over the region tonight resulting in ideal radiational cooling conditions with clear, cool, and dry conditions expected.
Southwest surface winds continue, though a weak trough was over western and central portions of Kansas for weaker speeds in the western CWA. Another weak trough/very modified cold front works into the area late Wednesday afternoon driven by a wave in the northern branch working east across south central Canada. Wednesday night -- Upper level trough across central Canada will continue its progression eastward.
/15/ Strong high pressure ridging prevails over the area today along with a very dry airmass. /15/ Prior discussion below: Today and Tonight: Continued cooler than normal and dry. Under a light wind and full insolation today, temperatures will top out several degrees warmer than yesterday but still a couple degrees cooler than normal. Under clear skies and a near calm wind tonight, strong radiational cooling of our dry airmass will lead to morning lows cooler than normal again. Lows will range from the lower 40s east to the upper 40s south and west. Normal lows run in the lower 50s.
325 PM EDT Tue Oct 17 2017 High pressure centered over the mid-Atlantic region will dominate the weather pattern through the upcoming weekend.
High pressure anchored to the southeast of Illinois will keep skies mostly clear through tomorrow, with the exception of a few cirrus clouds at times. However, we still could see high temperatures climb a degree or two warmer than today.
A strong cold front will enter western North Dakota between 05-07 UTC tonight, and propagate east into central North Dakota by early Wednesday morning.
237 PM EDT Tue Oct 17 2017 High pressure will hold south of New England tonight through Wednesday.
140 PM EDT Tue Oct 17 2017 Strong high pressure will bring dry weather through the remainder of the week. Have a great day! Synoptically quiescent conditions with clear skies and sfc anticyclone bisecting the North Country early this morning. Afternoon highs expected to range from the low 50s east of the Green Mtns, to the upr 50s in the Champlain Valley, and generally 55-60F across nrn NY.
Clouds are increasing as well as a cold front approaches across Washington. The cold front will move through the area tonight with light showers and slowly diminishing winds. Wednesday will be cooler and remaining breezy in many areas.
141 PM EDT Tue Oct 17 2017 High pressure will maintain dry weather this week along with a gradual warming trend. High pressure in control with sunshine and light winds, diminishing on the Cape/Islands. High pressure becomes centered south of New England, putting us in SW flow tonight and Wed. - Warmer than normal through this period - Dry weather through this weekend This portion of the forecast will feature a nearly zonal mid level flow evolving into a strong ridge toward this weekend. Almost no moisture to work within the lowest levels of the atmosphere, so mainly clear skies expected until later this weekend.
Diffluent westerly flow aloft dominated the Plains, helping to support the dry conditions, and while there was a weak mid level trough evident in water vapor imagery dropping across Nebraska this afternoon, the system was moisture starved and will result in littler more than a few high clouds. This strong trough will approach Lake Superior by Wednesday afternoon, pushing a cold front into the local area by this time as well.
107 PM PDT Tue Oct 17 2017 Strong winds will develop as a cold front moves through the region today.
1158 AM MDT Tue Oct 17 2017 Satellite WV shows the upper level trough brushing the northern portions of the state. This will effect winds over the plains with a SSW direction before transitioning NW after trough passage. Went ahead with this solution with the increased moisture and lift behind the trough on satellite. Temperatures should be about the same as yesterday, then possibly slightly warmer tonight with a little cloud and a bit more wind--though the dry air has allowed for 50 degree diurnal swings in the valleys and tonight should still be close to that. The flow aloft will weaken Wednesday afternoon and Wednesday night as the ridge axis shifts over Colorado and a weak short wave trough moves into the Great Basin.
256 PM EDT Tue Oct 17 2017 Quiet fcst period due to regime dominated by strong ridge. Have adjusted guidance blend a few degrees cooler in the far northeast given how temps verified this morning, which does result in some locations reaching the mid 30s with a few hours of supportive lower dewpt depressions. Highs expected in the low 70s for most then overnight lows still cool than normal but moderating a few degrees higher than tonight. High pressure aloft and the surface will continue to build across the area through the end of the week. Both the ridge aloft and at the surface will begin to push off the eastern shore of the US by the early weekend as the next weather-maker moves into the Mississippi River Valley.
Wednesday will be a carbon copy of today with temps maybe a degree or two warmer. in the lower 70s. winds are bit stronger in the low levels and how much of this is able to make it to the surface will depend on how deep the low levels will mix. Temps will quickly cool through the 50s early this evening with lows likely in the lower/mid 40s with perhaps a few/usual cooler spots.
Heading into Wednesday, temperatures will be slightly warmer as we develop a light onshore flow with just a slight uptick in our dewpoints. Overall the day will be another fine day to be out and about with temperatures in the low/mid-80s.
316 PM CDT Tue Oct 17 2017 High pressure still reigns across the region with continued very dry air and not a cloud in the sky.
Clear skies prevail with light northerly winds allowing temperatures to climb into the low-80s. After a chilly start to the morning, clear skies with weak winds will bring afternoon temperatures to a few degrees warmer today than yesterday (highs low 80s). Weak ridging aloft will build over the region into the mid week. A slow warming trend will begin to develop, with lows tonight still well below normal (low to mid 50s), but a few degrees warmer, and temperatures Wednesday rising back into the mid 80s.
Breezy and warmer on Wednesday. Great Lakes remain locked between strong high pressure centered over the Ohio Valley and strong low pressure centered over James Bay. A moisture starved cold front will move through northern Michigan late Wednesday night.