Aikyam-Lab/Synoptic-Bench huggingface dataset:
Winds will drop off more later this eve to the south, however, cirrus cloud cover may be a little greater, while more mixing from nw winds exist to the north, but with thinner clouds and dewpoints into the teens to allow temps to still fall to near freezing, mainly north of Interstate 30.
/issued 908 PM CST Tue Mar 6 2018/ A cold front has pushed into the Mid-South this evening. Lows will drop into the lower to mid 30s. /issued 344 PM CST Tue Mar 6 2018/ Impressive gradient winds between high pressure over Texas and a deep low over the Midwest have been observed across the Midsouth today. Temperatures are in the low to middle 60s. A dry cold front will move quickly across the Midsouth tonight. low humidity and relatively light wind will allow temperatures to fall into the low to middle 30s.
current NDFD fcst -- so there is a window of bust potential especially the further west you go in the advy/warning area in the Lower Susq Valley. This could bring a bit more snow in some areas to the northwest of I-99 especially the higher terrain.
248 AM CST Wed Mar 7 2018 The upper trof's passage thru the lower Ohio river valley brought a little light snow shower activity, but amounts have been trace/neglible. Wind/cloud will make for a cold/raw day, still under the influence of the long wave troffing on this part of the country. That'll last a good couple days, with the cooler temps/highs in the 40s and lows in the 20s.
230 AM MST Wed Mar 7 2018 Periodic thick high clouds will spread across the region this week despite high pressure locked in place. Somewhat flat ridging was still amplifying over the SW Conus this morning with H5 heights eventually peaking around 576dm later today.
A dry northerly flow is now in place through the low and mid levels yielding limited clouds and VFR. Area now under a dry northerly flow through the low and mid levels, trending westerly aloft.
Light accumulations are expected with the highest amounts likely along and north of the toll road.
Today/Tonight: Winds have rapidly strengthened this morning in association with insolation/mixing amidst 45-55 knot low/mid-level NW/NNW flow on the western periphery of a mature /vertically stacked/ mid-latitude cyclone centered invof south-central Iowa at 16Z. Expect winds to decrease considerably AOA sunset as insolation/mixing rapidly wane and flow aloft weakens as the aforementioned cyclone fills /weakens/ and progresses southeast to IL/IN. Expect continued dry conditions along with a warming trend on Wed as the decaying cyclone progresses further downstream, an upper level ridge builds over the Intermountain West, and H7/H5 heights rise over the High Plains. Given a weak MSLP gradient and no more than 10-20 knot flow in the lowest 4-6 KFT agl, anticipate light W/NW winds at 10-20 mph across the Tri-State area.
A complex aviation period is expected as a cold front moves north to south across the region. The 00Z KTBW sounding from this evening shows a moistening environment ahead of the approaching cold front currently located across the Panhandle. A progressive cold front will move through overnight into the early part of the morning.
A reinforcing dry cold front passing across during the overnight hours will slightly pick up early day northerlies. Skies will clear out through Wednesday with late day offshore winds weakening to near calm as northern high pressure expands into the region. /ISSUED 924 PM CST Tue Mar 6 2018/ Forecast looks on track for quiet and cool weather for the next couple of days as high pressure builds into the region. A reinforcing dry cold front latter this evening will briefly strengthen these ongoing northerlies. Look for a decent temperature drop overnight with caa continuing as high pressure makes its way further south into the region. Mostly sunny, dry but cooler conditions should prevail Wednesday with ridging in control.
1154 PM CST Tue Mar 6 2018 As anticipated, an intense upper low over the upper and middle Mississippi Valley has produced a very strong pressure gradient oriented northwest to southeast across Kansas on the back side. In its wake, high pressure is expected to build into the region as upper ridging ensues over the Rockies during the latter portion of the work week.
850mb temperatures warm about 8F to 10F across the area supporting highs in the low to mid 50s. High clouds continue to increase across the southwest 1/3 or so of the area tonight ahead of an approaching upper ridge axis.
206 AM CST Wed Mar 7 2018 A broad upper low continues across most of the Midwest early this morning, with the main center near the Upper Peninsula of Michigan. However, the upper trough axis currently extending northwest across the Minnesota Arrowhead will swing southward through the day. The steady northwest flow around the upper low continues to pump colder air into our region, and highs today will generally be in the mid to upper 30s.
320 AM CST Wed Mar 7 2018 Cool high pressure will settle over the southern Plains today, providing a much calmer day today, as compared with yesterday. It will also be slightly cooler.
309 AM CST Wed Mar 7 2018 Low pressure off the Carolina coast has yesterday's cold front well into the central Gulf of Mexico. High pressure extends from Saskatchewan to Texas. Those areas are still near 60 degrees with relatively warmer water close by. The high pressure to the west will move slowly eastward over the next 3 days, keeping the area dry through the end of the workweek.
1035 PM CST Tue Mar 6 2018 Updated aviation portion for 06Z TAF issuance Despite lingering light snow, visibilities have improved over most of the Fox Valley and lakeshore counties as the upper trof has shifted to our east.
1243 AM EST Wed Mar 7 2018 Low pressure crossing Ohio tonight will bring rain changing to snow.
337 AM EST Wed Mar 7 2018 A cold front has pushed east across the area overnight with temperatures in a free fall back towards the low 30s. We just won't see much accumulation with temperatures above freezing and relatively warm ground temperatures.
Area of low pressure centered across Southern Illinois will continue to meander eastward across the Ohio Valley. Additionally, the tight pressure gradient associated with this low pressure system will result in some breezy/gusty WNW to NW winds overnight. This northerly flow will help to advect a cooler, drier air mass in at the surface. Thus, despite the cloud cover, temperatures will drop into the lower to mid 30s by daybreak Wednesday morning. However, these winds will also serve to adequately mix the boundary layer and prevent frost from being an issue despite the cooler temperatures. Cloudy and cool start Wednesday as the core of the upper level low will be just to our NE. The closed low phases with another system dropping south out of Hudson Bay, which will end up keeping the closed low over situated over the eastern Great Lakes region.
330 AM CST Wed Mar 7 2018 Flow aloft has become northwesterly across the region, as a significant low pressure system pushes east through the Great Lakes today, and a ridge builds over the western half of the country. Clearing skies this afternoon will allow temperatures to warm into the lower 40s near the Kansas/Nebraska border.
High pressure aloft will prevail over the region through mid-day Wednesday for continued dry weather.
955 PM MST Tue Mar 6 2018 20z surface analysis had low over northern IL with stacked upper low spinning through IA into IL per water vapour loop.
120 AM MST Wed Mar 7 2018 Upper low spins over the Great Lakes, while a ridge builds over the western CONUS. Quiet weather and a warming trend are expected through the end of the workweek, as the upper ridge shifts over the central states.
345 AM CST Wed Mar 7 2018 Late night sfc analysis shows a secondary cold front basically running along the I-20 corridor across nrn LA, otherwise high pressure centered from the Canadian Rockies through the nrn/cntl Plains to the Red River Valley was in control of our weather with a slightly elevated nrly flow continuing to push in a much cooler airmass. With a nrly low-level flow ahead of approaching high pressure and a persistent nwrly flow aloft, dry weather looks to remain in place for the next couple of days. This cool spell we're under will only be re-enforced by the weak boundary progged to push through later this morning, with highs today expected to top out only in the lower 60s. slightly warmer elsewhere.
345 AM CST Wed Mar 7 2018 WV imagery shows an upper-lvl ridge moving east into the wrn CONUS this morning as a trough meanders thru the Great Lakes region. A trough moving into the PacNW is forecast to dampen the ridge somewhat over the next few days, but thicknesses are still on tap to increase over West Texas and Southwest New Mexico thru at least Sat, resulting in increasing temps thru then. Fortunately, dewpoints should steadily come up over the next few days as sfc flow veers, and winds under the incoming ridge look inconsequential thru at least Thu. Fri, leeside troughing along the Front Rage will result in increased westerly flow in the Guadalupes, for possible critical fire wx during the afternoon.
210 AM EST Wed Mar 7 2018 A cold front will surge through central and eastern NC this morning.
/issued 917 PM CST Tue Mar 6 2018/ North winds will continue to diminish overnight as temperatures dip several degrees below freezing.
Satellite images and surface observations indicate mostly mid level clouds across the CWA late tonight with a few isolated showers across the lower Rio Grande valley. /issued 253 PM CST Tue Mar 6 2018/ SHORT TERM (Tonight through Wednesday Night): A weak cold front pushed through the CWA today and will continue slowly south. Light precip will linger through this evening, but will taper off quickly tonight as dry air filters into the region and upstream ridging builds east, producing an increasingly stable northwest midlevel flow. Temperatures will be near normal by night, with overnight lows in the 50s, with slightly cooler than normal high temperatures on Wednesday, mostly in the lower 70s.
Deep areas of low pressure, one over the Great Lakes and another off the West Coast, will keep all the activity to our east and west while we see a ridge approach from the west.
Highs today will range from the lower 20s Turtle Mountains, to lower 30s southwest.
302 AM EST Wed Mar 7 2018 A cold front will surge through central and eastern NC this morning.
246 AM CST Wed Mar 7 2018 Today looks much quieter across the region as a strong upper level short wave trough departs to our southeast. The back edge of these clouds should start progressing east early this morning as a 850 mb thermo trough does likewise. Nevertheless, those winds along with highs in the lower to middle 40s will remind us that it is still indeed winter on the calendar. Lows look rather chilly with most locations falling into the lower to middle 20s.
1148 PM CST Tue Mar 6 2018 Water vapor imagery showing the center of the closed upper low continuing to push slowly southeast through Iowa. Things quiet down tonight with main upper level moving well to our east and ridging beginning to move in from the west. The ridge noted above is progged to build into the western half of the CONUS while troughing sets up in the east. Long range models have been showing a clipper system moving over the ridge and through the central Plains by the weekend, but the timing and intensity have not been very consistent with past few model runs.
247 AM EST Wed Mar 7 2018 Upper level trough is pivoting across the Commonwealth early this morning, bringing a nose of cold air allowing for scattered showers. By daybreak, we should be on the back side of that trough and expect coverage of showers to diminish.
257 AM EST Wed Mar 7 2018 Cold front moving through the area this morning will bring precip and lower cigs.
1136 PM CST Tue Mar 6 2018 Periodic light snow has continued today as the stacked low pressure system works eastward towards the Great Lakes. Remaining snow will be on the decline through this evening and tonight with drier subsident flow behind the upper trough. Another upper level trough will swing southeastward on Wednesday.
306 AM CST Wed Mar 7 2018 Northwest winds continue across the forecast area, diminishing with time as the upper trof continues to slowly move eastward. RH values drop into the lower 20 percents out in the southwestern counties, but wind speeds stay low enough to hold fire danger in the very high category for that area.
933 PM MST Tue Mar 6 2018 A ridge of high pressure to the west will remain in control of our weather through much of this week with dry conditions and temperatures warming back up to near or slightly above normal by Wednesday afternoon.
Highs today will be in the lower 80s and lows tonight will be mostly in the lower 60s.
1009 AM EST Sun Nov 5 2017 A pressure ridge will be in the forecast area through Monday.
Guidance suggests another round of early morning fog/low cigs will be possible again early Monday morning, though there is some model discrepancy as to who will see the lowered conditions. After that, expect another sunny day with highs in the low to mid 80s.
323 AM MST Sun Nov 5 2017 The region will remain situated between strong high pressure centered over Mexico and strong low pressure centered near the Pacific Northwest.
515 AM CST Sun Nov 5 2017 High cloud cover moving atop the upper ridge centered over southern Texas/northern Mexico. Upper ridging and plenty of sun to the surface should again warm temperatures up into the lower to middle 80s this afternoon.
Aloft a rather flat ridge of high pressure across the Southern States is providing a nearly zonal flow which will allow the surface frontal system to become nearly stationary from West to East over Northeast Texas and Southwest Arkansas keeping rain chances across the more Northern sections of the forecast area into the early parts of the work week. Toward mid week a stronger short wave will be moving from the western sections of the country providing a push for the cold front to move across the forecast area increasing the chances of showers and possible thunderstorms.
The stratus will however begin to clear from late afternoon into the evening after the passage of a cold front. The cold front will move across srn WI from the late morning into the afternoon but the stronger cold advection will occur tonight. The cold front is associated with cyclogenesis that is occurring from western Ontario, Canada to srn Hudson Bay, Canada. Polar high pressure will build into MN by Mon AM with lows Mon AM mainly in the 20s.
513 AM CST Sun Nov 5 2017 A weak boundary is setting up over central Illinois this morning, with south/southwesterly winds ushering warmer temperatures and plenty of moisture into the southeastern portions of the state. Monday reverts back out of the warmer weather pattern and starts a period of highs in the 40s/50s and overnight lows in the 30s/upper 20s.
Skies will become partly cloudy by this afternoon with continued warm dry conditions across the entire forecast area with temperatures climbing into the lower to mid 80s.
907 AM EST Sun Nov 5 2017 A pressure ridge will be in the forecast area through Monday.
The mid-level ridge just south of the area will result in a fairly persistent forecast for the next couple of days. Moisture will be limited across the region with the highest PWATs over the Coastal Waters and northern Coastal Bend.
432 AM MST Sun Nov 5 2017 Current surface map shows high pressure axis across eastern Montana into western South Dakota.
645 AM EST Sun Nov 5 2017 Aviation Low pressure will track south of Lower Michigan today with the chance for strong thunderstorms across far southern Lower Michigan this afternoon.
High temperatures will generally range from the 80s near the coast to the low to mid 90s inland. Low temperatures tonight will generally be in the upper 60s to the lower 70s area wide.
/22/ Early morning surface analysis had a 1019mb ridge axis extending across our southeast zones from the northeast while a 1003mb low was centered over southern Kansas. Models agree that the cold front will stall tonight well north of our CWA but storms associated with the cold front may drift south into our northern zones prior to sunrise Monday. Despite the morning stratus, a breezy south wind and some afternoon insolation will be enough to help temperatures top out in the low to mid 80s.
VFR and we will see more of such into this week coming ahead of our next good cold front due in 00Z Wed.
Otherwise, after 13-14Z VFR conditions are expected as upper ridge suppresses convection development today through this evening.
Patchy dense fog will prevail ahead of the cold front early this morning, mainly along/east of the Kansas turnpike. A brief period of drizzle and fog may also transition south with the front across the rest of the area this morning before the gusty north winds and cooler air begin to advect south in the wake of the front.
The next low pressure system will begin to produce moderate and even heavy snow showers in north-central Idaho this morning and into northwest Montana by late morning. Outside of moderate snow showers this afternoon, accumulations on paved surfaces will be lessened with temperatures near to above freezing but this is expected to change near sunset.
There is a warm front to the north with low level southwesterly flow continuing to supply warm and moist air to the region. Temperatures will be well above normal again today with highs in the low to mid 70s across most locations. Chattanooga Airport, TN 77 61 74 62 / 10 10 40 50 Knoxville McGhee Tyson Airport, TN 76 61 71 59 / 20 10 60 60 Oak Ridge, TN 76 61 70 59 / 30 30 60 70 Tri Cities Airport, TN 74 56 68 54 / 20 10 60 60.
648 AM EST Sun Nov 5 2017 An area of low pressure and associated cold front will approach the area today. The cold front will move through this evening into tonight. Cooler air will begin to filter into the region with the passage of the cold front. Temperatures will struggle to rise with high temperatures in the lower 50s to lower 60s across most locations. A wave of low pressure will travel along the old frontal boundary that will extend across southern Kentucky.
Swift-moving cold front just N of Perryton at 530 AM should slow by midday before overtaking CDS around sunset, but perhaps much sooner given the depth of cool air draining south. Heights will fall as as the weak ridge that was over the region yesterday continues to move off to the east and we transition to zonal flow through the day. A weak cold front will try to make it into the Rolling Plains in the morning but it appears that daytime mixing will help to hold the front up across western Oklahoma through the day before sliding it east tonight into Monday morning.
636 AM EST Sun Nov 5 2017 Weak low pressure moving through the area will trigger scattered showers today. A strong cold front will pass the area late tonight and early Monday triggering more widespread showers and isolated thunderstorms followed by much cooler air. Ripple in the upper flow will act like a weak warm front and increase the chance for showers, especially over the western and northern zones, with the possibility of some isolated rumbles of thunder. Otherwise, skies will be cloudy but with above normal temps as we continue to warm advect on the back side of the ridge. However, strong cold front is on it/s way and will begin to spread showers and isolated thunderstorms into the the western zones before 06Z.
There may be a few spots where visibilities will still be 1/4 mile or less through mid morning but conditions should continue to improve as a cold front pushes across the area, turning winds northerly and ushering drier air into the cwa. Meanwhile, a strong cold front extended from northern MN to northern KS with temperatures in the 20s in the Dakotas. Today: Widespread dense fog should continue to about sunrise followed by improving visibilities, as a cold front begins pushing into the cwa. Tonight: Canadian high pressure will be nosing into MN bringing clearing skies to the dvn cwa this evening, with clear skies overnight.
Breezy onshore flow along the coast by midday with gusts near 15 mph this afternoon and lingering low clouds will keep temperatures cooler than past days with highs only in the low-mid 70s expected. Farther inland, SE GA and the Suwannee River Valley will warm into the low-mid 80s under mostly sunny skies this afternoon. NNE winds near 15 kts were observed over the waters this morning with combined seas generally 3-4 ft as the pressure gradient was stronger due to the closer proximity of the inverted trough axis east of the waters.
A cold front will sweep through northeast Oklahoma later this morning and will clear southeast Oklahoma and northwest Arkansas late this afternoon. Surface warm front has pushed through most of the forecast area as of 3 AM Sunday morning. Next cold front is located across central Kansas and northern Missouri, extending from Kansas City to Salina to Dodge City. At the same time, areas south of the boundary will likely heat up into the low to mid 80s.
1031 AM EST Sun Nov 5 2017 The deep mid-upper level ridge remains over Mexico and reaches northeast into the southeastern United States. Just to our east, a moisture-starved and vertically stacked trough complex spins over the Bahamas.
214 AM PST Sun Nov 5 2017 Light showers linger in the high Sierra this morning with drier conditions expected through the afternoon.
A weakening cold front will bring a band of light rain and mountain snow to the region today.
716 AM EST Sun Nov 5 2017 A warm front will lift north to the west of the forecast area today and will be quickly followed by a cold front on Monday.
However, the Miami Beach police did not report any coastal flooding during the high tide this morning which was at 3.
713 AM CST Sun Nov 5 2017 As the cold front pushes south into the region this evening it will interact with an increasingly unstable airmass with dewpoints in the upper 60s. A broad upper ridge covers the southern U. ahead an approaching cold front now moving into the Mid Mississippi Valley. Expect breezy conditions ahead of the cold front with gusts to 25 mph across the Delta which will help mix out morning low clouds and produce some afternoon sun. Record highs for this date are in the lower 80s at Memphis, Jackson and Tupelo so more sun could result in some potential records.
437 AM MST Sun Nov 5 2017 Current surface map shows high pressure axis across eastern Montana into western South Dakota.
More widespread and significant rain is possible tonight and Monday morning with the passage of a cold front. This will also promote an infusion of warmer temperatures, so even though there will be plenty of cloud cover, temperatures will push close to 10 degrees above normal. Cold front will push through the region late tonight and Monday morning. Will keep the highest QPF on the fringes of my forecast area, to the north and to the west.
426 AM CST Sun Nov 5 2017 A cold front will bring gusty north winds as it passes north to south through Oklahoma today. /issued 249 AM CST Sun Nov 5 2017/ The cold front advancing toward Oklahoma has increased its speed from previous model runs and is expected to push south the strong maximum temperature gradient today. Temperatures in the lower 60s F.
438 AM MST Sun Nov 5 2017 Current surface map shows high pressure axis across eastern Montana into western South Dakota.
That, and the cold advection will limit temperatures severely, and it will be a struggle to reach the freezing mark according to much of the guidance. We will again have some initial dry air to overcome with a ridge axis across the northeast part of the CWA. Could thus see some light freezing drizzle but temperatures aloft do not warm above the freezing mark so we shouldn't see very much if any ice accumulation. 1036mb high pressure follows close behind, reinforcing the cold air across the region.