Aikyam-Lab/Synoptic-Bench huggingface dataset:
A strong cold frontal boundary continues to slide east through our region this morning. Even further west temperatures were in the 40s as the cooler and drier air mass continues to settle into the region.
Latest water vapor imagery shows amplified flow with a broad long wave trough over the central US, with the axis over central NEB, moving eastward and gulf moisture being transported northward into and beyond the Ohio Valley. Otherwise, similar to slightly cooler high temperatures today with 850 hPa temperatures peaking -2 to -7 C from southwest NEB to north central NEB. Otherwise cold air advection with cooler highs can be expected, with mid to upper 30s across northern Nebraska and mid 40s across the southwest. Winds will quickly turn south Thursday night ahead of a developing leeward trough.
Aside fm the orographic snow showers along the higher northwest facing mountain slopes today, the airmass will be dry. Across the northeast plains, gusty winds there as well with the strongest gusts near the foothills from Boulder County northward, the Cheyenne Ridge, and adjacent plains zones along the Wyoming and Nebraska borders. Temperatures will be only slightly warmer than yda. High pressure and the surface and aloft will keep the airmass dry and stable overnight. An upper level ridge over the western states will produce a northwest flow aloft across Colorado Thursday.
554 AM EST Wed Mar 1 2017 Low pressure over will move northeast across the central Great Lakes early today dragging a cold front across the area. This will be followed by a reinforcing cold front tonight.
551 AM CST Wed Mar 1 2017 The cold front is currently from Mena to Russellville to near Mountain Home. the cold front is now pushing SE into the NWRN counties of the CWA this morning. continuing behind the cold front. and temps will be cooler than seen this past day or so.
The line of storms associated with the initial cold front had moved east and had cleared Lima Ohio by 430 AM EST.
Opted to populate with the warmer euro MOS as it seems to be the only guidance capturing the trends. Upper air analysis last evening showed a trough over the western half of the country with flow over Texas from the south-southwest. At the surface, a dryline and cold front were entering our northwestern area. The cold front will be about half way through our area at the start of this period and continue through today. Temperatures will be cooler today and even cooler Thursday.
the cold front is now pushing SE into the NWRN counties of the CWA this morning. continuing behind the cold front. and temps will be cooler than seen this past day or so.
310 AM MST Wed Mar 1 2017 Northwesterly flow has set up on the back side of the trough that brought all the snow to the area yesterday. Cold air will remain across the area with high temperatures still running about 10 degrees cooler than normal for this, the first day of meteorological spring. After a brisk start to the day, temperatures will begin to warm up and though still not quite reaching 'normal' values, it should be noticeably warmer than Wednesday.
543 AM EST Wed Mar 1 2017 Low pressure approaches from the Great Lakes today and lift across northern Maine Wednesday into Wednesday night. High pressure will build toward the area late in the weekend. Low pressure will approach from the Great Lakes this Morning then move across Northern Maine this afternoon into this evening. Warmer air will be pushing northward across the State today as the low approaches so even though precipitation is expected to start as snow, a change to mixed precipitation and rain will occur later this morning. Precipitation is then expected to change back to mixed then snow late tonight as the low moves off to the north and colder air moves in behind the low.
416 AM CST Wed Mar 1 2017 (Today and Tonight) Currently, an upper level trough is moving east across the northern Central Plains with thunderstorms ahead of it, and a cold front pushing south into our area. Much cooler weather through the next 24 hours behind this cold front. The cold front was moving through the Haskell/Throckmorton counties area between 3 and 3:30 AM, and is expected to be in the Abilene area between 4:30 and 5 AM this morning. Lows will be in the 30s generally, with a few of our southern valley locations possibly falling to the freezing mark.
broad northwest flow aloft is forecast to fill in behind a departing upper level trough over the Central Plains.
Atlantic high pressure will ridge west across FL today with an axis over or just north of the Tampa Bay region. High pressure ridging east to west near/just north of Tampa Bay continues with SE winds shifting to S then SW during the afternoon as a sea breeze circulation sets up.
325 AM MST Wed Mar 1 2017 Current surface map places weak high pressure across eastern Montana into Wyoming.
Showers diminishing today as weak upper level ridging builds over Western Washington.
This morning, the cold front continues to push south/southeast across the region, pushing beyond the Red River into north Texas through 330 AM CST. Temperatures will also be noticeably cooler, low 30s in the north to mid 40s across Texoma. ERC-G values are over the 50 percentile, however, given modest winds and cooler temperatures, will forgo a Red Flag Warning as any fires today would likely be of the initial attack variety, and stick with a Fire Danger Statement for most of the area. With a broad 500mb ridge developing over the western U.
High pressure building over the Central Rockies and extending into the Southern Plains will shift the low level flow to the east for the next few days.
Simply, prefrontal squall line developed and raced out ahead of sfc cold front, i.
645 AM EST Wed Mar 1 2017 Aviation Low pressure will move east and colder air will arrive today with rain changing to snow by the afternoon. Impacts should be minor although there could be some slippery spots on untreated roads as temperatures drop well below freezing overnight.
The trough axis has shifted over the eastern Panhandles with northwest flow nosing into the western Panhandles per water vapor imagery. At the surface, the NW/SE oriented cold front has made it nearly as far south as Lubbock. Temperatures are in the low 20s across the OK Panhandle to high 20s across the southern TX Panhandle. The upper level trough will continue eastward today with a very dry airmass invading in its wake. Wind speeds will be of most concern across the northeastern zones closest to the departing upper trough where the pressure gradient will be strongest (15 to 25 mph).
Gusty winds will remain behind the front due to the low level jet, but will eventually mix out during the overnight hours.
317 AM PST Wed Mar 1 2017 High pressure will bring dry conditions, light winds, and a slow warming trend through Thursday.
918 AM EST Wed Mar 1 2017 Low pressure over will move northeast across the central Great Lakes early today dragging a cold front across the area. This will be followed by a reinforcing cold front tonight.
The approach and passage of a cold front today will bring veering and increasing surface winds to the aerodromes. /issued 407 AM CST Wed Mar 1 2017/ SHORT TERM (Now through Thursday): A weak cold front will traverse through Deep South Texas and the Rio Grande Valley late this morning through early this afternoon.
SHORT TERM (Now through Thursday): A weak cold front will traverse through Deep South Texas and the Rio Grande Valley late this morning through early this afternoon.
Focus turns to the main upper trough which is moving through the eastern Dakotas. and we may see some snow showers/light snow develop along the trough axis as it moves east.
A cold front is approaching the region, and will push through terminals by the mid to late morning. The upper level trough will continue swinging past the region today as a deep low lifts into the northeast CONUS. The tail end of the associated cold front and dryline across central Texas will push into South Texas through the mid to late morning, reaching the coast by the early to mid afternoon. Temperatures will be comparatively cooler today, though still have sufficient time to warm into the low to mid 80s.
813 AM EST Wed Mar 1 2017 Low pressure approaches from the Great Lakes today and lift across northern Maine Wednesday into Wednesday night. High pressure will build toward the area late in the weekend. Low pressure will approach from the Great Lakes this Morning then move across Northern Maine this afternoon into this evening. Warmer air will be pushing northward across the State today as the low approaches so even though precipitation is expected to start as snow, a change to mixed precipitation and rain will occur later this morning. Precipitation is then expected to change back to mixed then snow late tonight as the low moves off to the north and colder air moves in behind the low.
A cold front will move through the area today bringing gusty northerly winds to all sites. /issued 416 AM CST Wed Mar 1 2017/ (Today and Tonight) Currently, an upper level trough is moving east across the northern Central Plains with thunderstorms ahead of it, and a cold front pushing south into our area. Much cooler weather through the next 24 hours behind this cold front. The cold front was moving through the Haskell/Throckmorton counties area between 3 and 3:30 AM, and is expected to be in the Abilene area between 4:30 and 5 AM this morning. Lows will be in the 30s generally, with a few of our southern valley locations possibly falling to the freezing mark.
An increasingly dry and warmer west-northwesterly flow aloft will set up for the latter half of the week.
935 AM EST Wed Mar 1 2017 It will be warm and windy ahead of a cold front today. Cooler conditions will follow the front for the end of the week. The main issues are windy conditions ahead of a cold front this afternoon and possible severe thunderstorms tonight. VAD wind profile trends support the model guidance of a strong low-level jet ahead of the approaching cold front. The high-resolution models have a timing of mainly 900 pm to 200 am. Leaned toward the higher temperature guidance ahead of the front today. Also followed the higher guidance tonight because of mixing associated with the front. Drying will occur behind the cold front Thursday.
High pressure building into the region will bring dry weather along with warming temperatures through the end of the week.
1034 AM EST Wed Mar 1 2017 Thunderstorms will continue through the first part of the day as a cold front pushes southeast across the area. Behind the front, a cooler airmass will settle into the region through the end of the work week. Meanwhile, the convective line associated with the cold front is pushing east across central Indiana and into northwest Ohio.
Will maintain the potential for High Winds in the forecast, including the High Wind Warning as we now reside within a more subsident atmosphere in the wake of the upper trough, and models do show a mountain top inversion developing through the morning. Do think the mountain top inversion will help force strong gap winds at least in the early evening, so will leave the timing of the High Wind Warning alone.
/issued 322 AM CST Wed Mar 1 2017/ A cold front continues to make good southward progress and is still moving south at a bit faster clip than any of the short-term or high resolution models have. High temperatures will be about 20 degrees cooler compared to yesterday with low 60s for the Rolling Plains and mid to upper 50s across the Caprock. Jordan One last shot of surface ridging will keep winds light and temperatures near average tomorrow.
610 AM CST Wed Mar 1 2017 For the ArkLaTex, a strong cold front is gusting the NW winds across the I-30 corridor at this time. Little in the way of rain on the front with some found on the pre frontal trough stealing moisture overnight. /issued 310 AM CST Wed Mar 1 2017/ Cold front currently approaching the Red River Valley of Northeast Texas near Durant Oklahoma continuing to move southeast. Could see increased convective coverage across the region during the morning ahead of the cold front. Overnight lows tonight to fall into the 40s across most locations with the interstate 30 corridor approaching freezing.
A deep layer ridge across central Fl will shift south to across south Fl this afternoon as a cold front begins to approach from the northwest. Ridge of high pressure just south of the waters will continue to move south as a cold front begins to approach from the northwest.
1035 AM EST Wed Mar 1 2017 It's another warm and humid morning across the Florida Keys, with current temperatures in the mid to upper 70s (low 70s in passing showers) and dew points in the low 70s. Kbyx detects a cluster of showers moving through the Florida Straits and across the Lower Keys, with more isolated activity 5 to 60 nm off the Upper Keys. The Pulley Ridge Buoy reports 3 ft seas in the southeastern gulf. Otherwise, the forecast remains on track with highs approaching the mid 80s (5 degrees warmer than climatological normals). This cluster of showers will swing northward to the Florida Keys and South Florida, around the western fringe of the exiting Bermuda High and ahead of the incoming cold front.
1027 AM EST Wed Mar 1 2017 Low pressure approaches from the Great Lakes today and lift across northern Maine Wednesday into Wednesday night. High pressure will build toward the area late in the weekend. Update 1025 AM: Update to remove freezing rain from the forecast. Low pressure will approach from the Great Lakes this Morning then move across Northern Maine this afternoon into this evening. Warmer air will be pushing northward across the State today as the low approaches so even though precipitation is expected to start as snow, a change to mixed precipitation and rain will occur later this morning. Precipitation is then expected to change back to mixed then snow late tonight as the low moves off to the north and colder air moves in behind the low.
High pressure will dominate the area weather this week with clear skies, occasional breezes and warming temperatures.
822 AM EST Wed Mar 1 2017 The advance of a strong cold front has brought showers and thunderstorms to the Upper Ohio Region for today. Much cooler temperatures will then last through much of the weekend. As the third round of convection exits the area, hi-res models are indicating a break in convection before the cold front starts to initiate some convection again late in the afternoon. Late day cold frontal passage will end these threats and return cold and snow showers chances to the region. After the FROPA, upper troughing, cold advection, and limited lake and terrain enhancement should result in scattered snow showers through Thursday as temperatures return to sub average.
648 AM EST Wed Mar 1 2017 Low pressure over will move northeast across the central Great Lakes early today dragging a cold front across the area. This will be followed by a reinforcing cold front tonight.
349 AM CDT FRI SEP 2 2016 A somewhat complex upper and lower level pattern exist with a ridge extending from Mexico to central Canada, a trough over the eastern 1/3 of the country with Hermine at the base of this trough. The upper trough to the east will be quickly lifting northeast while ridge comes in from the west.
Cool unstable northwest flow aloft will maintain good threat of showers today, and even some light snow to the highest peaks in the Cascades. Though threat of showers will be less this weekend, will still be on the cooler side.
235 AM CDT FRI SEP 2 2016 Longwave troughing continues to dig southward across the western CONUS this morning, while upper-level ridging extended northward from the central Plains up into the Great Lakes Region and central Canada. This weekend as persistent troughing over the western CONUS brings southwest flow across the central Rockies, lee troughing will develop across the High Plains.
248 AM CDT FRI SEP 2 2016 247 AM CDT High pressure dominates the pattern through the weekend leading to continued dry conditions.
643 AM EDT FRI SEP 2 2016 High pressure will build across our region from Canada this weekend.
646 AM EDT FRI SEP 2 2016 High pressure will build into the Great Lakes region through Labor Day. A mid/upper level trough axis will pivot down across the upper Ohio Valley through this afternoon.
Dewpoints in the lower 60s extend across southwest Kansas into east central Colorado.
610 AM EDT Fri Sep 2 2016 Dry high pressure will maintain seasonably cool weather through the weekend. Otherwise dry and comfortable today as a strong ridge builds over the region. Ridge remains in place through the weekend, in response to a more easterly track of the remnants of Hermine. Dry conditions will prevail through the period as strong high pressure remains in control. SCT to BKN MVFR stratus are developing toward northern ports early morning in weak cool advection, otherwise high pressure will keep general VFR with north to northeast winds under 10 KTs through tonight.
300 AM EDT FRI SEP 2 2016 06z sfc analysis shows high pressure pushing into Kentucky from the northwest while the lower pressure to the south is associated with landfalling Hurricane Hermine. The high has brought in a much more comfortable air mass on north to northeast winds. They all depict a dampening northeast trough sliding off to the east today with just some weak energy left behind over the lower Ohio Valley.
One last day of hot weather expected, especially across the east, as a cold front pushes through the state today. Models partially split the upper trof as it moves east, with the southern portion digging into the Great Basin over the weekend before lifting north.
mainly in the Delta and over ridgetops. The NAM is trending deeper and more vigorous than the GFS/ECMWF with the closed low and vort max coming down just W of VCRISL Sat nite and Sun morning.
257 AM EDT FRI SEP 2 2016 High pressure will build across our region from Canada this weekend.
A cold front is moving across the northern Rockies early this morning and temperatures will be much cooler today with highs in the upper 60s to near 70 in Montana and mid 70s in central Idaho. The cooler temperatures will be accompanied by rain showers, but we're not expecting any moderate or heavy rain.
253 AM CDT FRI SEP 2 2016 Dry and cooler than normal conditions are expected for the short- term period as a broad mid-level ridge remains over the central U. At the surface, high pressure centered over the Great Lakes region continues to extend southwestward into the central U. With light or calm winds in place under the high pressure early this morning, some patchy fog will be possible through sunrise, primarily in low- lying areas. With light easterly winds in place today along with the potential for some scattered low clouds streaming into the area from Nebraska, temperatures will remain cooler than normal with highs in the upper 70s to near 80 degrees. A mid-level trough will be moving onshore in the Pacific Northwest this morning, and models show this trough deepening across the western U.
The cool advection in the low levels goes neutral today and the atmosphere will remain quite dry. This combined with mainly sunny skies will result in temperatures a little warmer than yesterday, peaking out in the lower half of the 70s for most. The high pressure settles in over nrn Michigan tonight with little change in the atmospheric moisture content. Can see lows 30+F lower than the highs. Thus, lows in the lower half of the 40s for most.
High pressure ridge over North Central Mexico and West Texas will provide VFR conditions and a light and Variable to light north winds overnight. /issued 253 PM CDT THU SEP 1 2016/ SHORT TERM (Tonight through Friday Night): 500mb ridge across northern Mexico and Hurricane Hermine across northern Florida tonight will continue to provide northerly winds aloft across south Texas tonight. The weakness in the ridge across south TX Friday will allow isolated showers and thunderstorms to develop across portions of central and south TX Fri afternoon and this convection will move southward into portions of the CWA.
This will allow south southeast wind to increase some, but high pressure will still be in control and give us a sunny and slightly cooler than average day.
302 AM EDT FRI SEP 2 2016 06z sfc analysis shows high pressure pushing into Kentucky from the northwest while the lower pressure to the south is associated with landfalling Hurricane Hermine. The high has brought in a much more comfortable air mass on north to northeast winds. They all depict a dampening northeast trough sliding off to the east today with just some weak energy left behind over the lower Ohio Valley.
some drier air has filtered in as a high pressure ridge at the surface becomes more established. Lows will be on the cooler side with drier air moving in.
355 AM CDT FRI SEP 2 2016 Water vapor loop indicated an upper level trough was rotating through the Pacific Northwest. Trough is expected to intensify as wave moves northeast into northern Sask on Sat. Then trough is forecast to move east to Hudson Bay by 84 hours. Upper trough will send a cold front into the area Sun. Another short wave trough extended from UT to western MT. Trough will move across the region this evening and may produce some showers/thunder. Water vapor loop indicated another short wave over the eastern Pacific and is forecast to dig a larger trough over the west coast Sat night.
This wave is expected to pass through the forecast area tonight with moisture continuing to deepen out ahead of the main longwave trough that approaches the Great Basin by early Friday morning. Also added gusty winds to the evening convection as we still need to saturate the lower levels, or prime the pump, before we see storms transition to more generous rain producers. This will also cool max temps on Friday and the cooler GFS numbers are preferred.
Quiet weather today and tonight, as mid to upper level ridging builds over the region behind departing trough.
Ridging was found aloft over the region as well, yielding fairly benign conditions for the Northland today and tonight.
Drier air in the wake of yesterday's weak cold front will result in dewpoints in the lower 60s today. Temperatures will warm into the low/mid 80s today across much of the CWA under mostly sunny skies.
A cold front will move through the area today bringing moderate to strong southwest winds as well as cooler temperatures.
316 AM CDT FRI SEP 2 2016 Manual upper-air analysis at 00z revealed a prominent ridge from central Canada into the central Plains with bracketing troughs along the Pacific Northwest Coast and over eastern Canada into the lower Great Lakes and Ohio Valley. The ridge will begin to break down as it shifts east over the next 24 to 48 hours in response to the amplification and inland movement of a mid-level trough over the western CONUS. trough, the first of which will traverse portions of the northern and central Plains later today into tonight.
347 AM EDT FRI SEP 2 2016 High pressure will continue to settle into lower Michigan today and will be centered over the region by tonight.
110 AM EDT Fri Sep 2 2016 Dry high pressure will maintain seasonably cool weather through the weekend. Dry and comfortable today as strong ridge builds over the region. Ridge remains in place through the weekend, in response to a more easterly track of the remnants of Hermine. Dry conditions will prevail through the period as strong high pressure remains in control. Building high pressure will keep general VFR with north to northeast winds under 10 KTs through tonight.
330 AM CDT FRI SEP 2 2016 Strong 1028 mb high pressure centered just north of the Great Lakes will maintain over the next day bringing mostly clear skies aside from shallow afternoon cumulus cloud buildups. A steady light E-NE breeze will continue due to pressure gradients on the periphery of the high. Little air mass change from the previous day in this pattern will produce another cooler than normal day with highs in the upper 70s and dry dewpoints in the mid to upper 50s.
253 AM EDT FRI SEP 2 2016 High pressure will build across our region from Canada this weekend.
New development early this morning on the high terrain of eastern New Mexico shows that there is even more energy upstream.