Aikyam-Lab/Synoptic-Bench huggingface dataset:
The winds will keep up decent speeds for the overnight, but diminishing gusts can be expected right around sunset as high pressure noses down the front range. Loads of wind to our North under the upper low over the mid MS valley under the clouds. We will be going below average for a day and half as this high pressure sets up shop down in our neck of the woods.
427 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.
921 PM EST Tue Mar 6 2018 The cold front is still back to the west approaching Nashville with a few light radar returns along the leading edge of the boundary. Additionally, the low-levels are rather dry with RH values along the plateau currently less than 30 percent. This low-level dry air can also be seen on the 00z OHX sounding. The mountains will provide additional orographic lift and expect best chances for precip, will remain in the higher elevations. Chattanooga Airport, TN 35 47 30 46 / 0 0 10 10 Knoxville McGhee Tyson Airport, TN 34 45 28 42 / 20 10 10 10 Oak Ridge, TN 34 44 29 43 / 20 10 10 10 Tri Cities Airport, TN 33 41 26 38 / 30 20 20 20.
Dry weather along with warmer weather can be expected today.
The high wind warning and red flag warning are both set to expire at 6 pm. Impressive cyclone in central Iowa at midday, with intense jet core mixing down to the surface in the subsident rear quadrant of the cyclone over SW KS.
523 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.
/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.
300 PM PST Tue Mar 6 2018 Dry weather and a significant warming trend will continue through midweek as high pressure remains in control. Therefore, California is currently under a ridge of higher pressure which is allowing temperatures to warm-up. Models have a very good handle on the current storm development with a good surge of subtropical moisture surging northward ahead of the upper low. While this morning's upper air observations from San Diego and Vandenberg showed Precip-water values of around a third of an inch, the position of the upper low off the West Coast will introduce higher moisture values to the area during storm passage. Yet, the upper low will have to ride over the ridge and steer the storm more through the Pacific Northwest and Northern California.
First system, the offshore closed low, has strong dynamics (several C-G strikes today) but the strong coastal ridge will deflect it Nwd and into the Pac NW on Thu. Our QPF for BLU at this time is about 1/2 of the average of the SPC SREF Plume members, and favors the lower cluster of members. The first system displaces the coastal ridge inland, allowing a more active Srn stream to spread precip mainly across the Srn half of CA Sat and into Sun. The Model Trend Tool (GFS based) shows the trof deepening over the past several runs which would keep the trof's effects over Norcal longer, and resulting in a potentially wet and cold pattern, similar to what we recently experienced.
735 PM EST Tue Mar 6 2018 A cold front will move through the forecast area tonight.
However, have increased overnight relative humidity across the area, which has increased the coverage of patchy freezing fog into the southwest Montana valleys. Mostly clear skies today allowed for some melting of snow, so this low level moisture layer may cause freezing fog to form overnight.
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.
1014 PM EST Tue Mar 6 2018 A cold front will move through the forecast area tonight.
Surface wise, a Western Atlantic ridge axis extends across the Straits of Florida and into the extreme Southeast Gulf of Mexico. VFR conditions will prevail at both EYW and MTH until Wednesday afternoon, when we expect a broken line of showers ahead of a cold front.
908 PM CST Tue Mar 6 2018 New Information added to update section 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.
Gusty north winds behind a cold front will likely continue through much of the day before diminishing around sunset. Cold front moving across the area this morning will bring in cooler temperatures as well as gusty north winds. Cooler weather will continue into the early part of the upcoming week as a couple of Canadian airmasses will slide south through the Plains.
VSBYs may also be reduced at times overnight as moisture in the lowest 100mb pools under dry air aloft.
areas of patchy fog may develop just downstream of an approaching cold front. Low QPF with the higher probs for primarily showers to focus across the northeastern and central eastern counties through 18Z Sunday. The cold front is timed to travel across the northern tier counties shortly after sunrise.
407 AM MDT Sun Mar 11 2018 Short wave ridging will move across Colorado today. Airmass behind yesterday's cold front will be a little cooler with highs slightly below normal. A short wave trough moves into Wyoming tonight.
440 AM CDT Sun Mar 11 2018 An upper trough is passing over the Central Plains which has resulted in a cold front that is pushing through the CWA this morning. Temperatures today will be quite a bit cooler than yesterday behind the front with highs mostly in the 50s and 60s. Temperatures tonight will be quite a bit cooler with locations across southeast New Mexico and the northern Permian Basin reaching freezing or below.
We should remain mostly dry through noon today, then some scattered showers are expected to move in from the northwest ahead of an upper low that will bring cooler temperatures to area tonight. The upper low will begin to cool the mid levels by 7pm as it moves into the area from the northwest.
/issued 1009 PM CST Sat Mar 10 2018/ Skies are cloudy across much of the forecast area with temperatures ranging from the lower 50s to lower 60s. Temperatures ranged from the 50s in the north and south with warmer 60s sandwiched in the middle. Lift will increase tonight and tomorrow as the approaching disturbance/upper low along the Front Range slides into the Lower Tennessee Valley by tomorrow night. This expected complex will produce the brunt of the rainfall in the southern counties along a warm front. Then tomorrow a distinct dry slot will move into the south while a new precipitation shield associated with the upper level low swings through the northern counties.
555 AM CDT Sun Mar 11 2018 The frustrating system that brought periods of freezing rain and locally moderate to heavy snow continues to pull away from the region. Main upper level low will spin south into KS/MO thru the rest of the morning with some lingering light snow possible over NW Iowa for the next couple of hours. As the ice growth zone dries out, could see some patchy freezing drizzle develop thru the morning hours in areas along and east of I-29.
400 AM MDT Sun Mar 11 2018 Through Tonight: Synoptic subsidence will prevail over the Tri- State area through tonight as H5 heights rise in the wake of an upper level low progressing ESE from Kansas City to the TN valley. Ongoing low- level cold advection (associated with high pressure extending southward from the Dakotas) will cease by ~15Z this morning. Expect highs cooler than yesterday, in the mid/upper 40s, with overnight lows in the teens to lower 20s.
Later tonight to Sunday morning, a cold front will move through AR and push convection to the east of AR. Behind the cold front, winds will shift to the northeast then north to northwest Sunday morning.
Flurries to the west are still not expected survive the trip into the forecast area given dry air in the lower levels.
400 AM MDT Sun Mar 11 2018 High pressure will dominate the region today and tonight and provide mostly sunny skies and lighter wind speeds compared to yesterday.
329 AM CDT Sun Mar 11 2018 Water vapor satellite at 08Z shows the mid level trough over southeast Nebraska with the trough axis extending southwest into central Kansas. Northerly winds of 10 to 20 mph with gusts up to 30 mph will decrease after 5 PM as high pressure builds southward into northern Kansas and pressure gradient relaxes. Highs today will be some 15 to 20 degrees cooler than yesterday with temperatures in the 40s. Lows tonight will range from the lower to upper 20s from northwest to southeast across the cwa.
349 AM CDT Sun Mar 11 2018 Early morning GOES East water vapor imagery showed an upper low centered between Omaha and Kansas City. This low will track southeast across MO today, reaching western KY by midevening and middle TN by early overnight. Moisture remains limited in the -12C to -18C dendritic layer and surface temps during this period should prevail at or above freezing.
156 AM EST Sun Mar 11 2018 High pressure will build south into the Central Great Lakes today as low pressure tracks across the Tennessee Valley.
404 AM MDT Sun Mar 11 2018 High pressure will dominate the region today and tonight and provide mostly sunny skies and lighter wind speeds compared to yesterday.
The RAP shows a few showers picking up towards evening as the upper level trough moves over the region bringing some dynamic lift to aid in precipitation.
305 AM CDT Sun Mar 11 2018 The frustrating system that brought periods of freezing rain and locally moderate to heavy snow continues to pull away from the region. Main upper level low will spin south into KS/MO thru the rest of the morning with some lingering light snow possible over NW Iowa for the next couple of hours. As the ice growth zone dries out, could see some patchy freezing drizzle develop thru the morning hours in areas along and east of I-29.
135 AM CST Sun Mar 11 2018 A mid/upper trough digging across Missouri today will bring gusty northwest winds and low level cold air advection to the area today. As high pressure settles south across central Kansas tonight, low temperatures will fall into the teens and 20s in some locations. High pressure at the surface will translate slowly south across the Central and Northern Plains on Tue bringing lighter wind speeds and seasonably cool temperatures with highs in the low 50s for most locations. A mid/upper ridge is progged to emerge from the Southern Rockies toward the middle of the week with rising heights/increasing thickness across the Central Plains.
346 AM MDT Sun Mar 11 2018 Clearing skies, a high pressure ridge approaching, and calm winds have allowed some areas of northeast Montana to develop some freezing fog through these early morning hours. Satellite imagery and observation data show that the most dense freezing fog seems to be here in Glasgow along the Milk River and low lying areas upstream of Glasgow in western and northwestern Valley County. For now, have chosen to issue a Dense Fog Advisory for Valley County until Noon today, with additional impacts of the fog easily freezing onto exposed surfaces, making them slippery through the remainder of this morning.
1148 PM CST Sat Mar 10 2018 Light snow continues to work to the east across the NW MN and in the wake of the NW wind shift some light freezing drizzle and fog occuring across eastern North Dakota. However, think that chances of any freezing drizzle are pretty low, so kept everything as snow for now. Considering there was some fog in that area while the trough was over central ND last night, can't rule out some patchy fog formation. High pressure will be building into the area with northwesterly winds. Think that clouds will keep the eastern counties from seeing their warm spots in the trees, allowing more uniform high temperatures from the lower to mid 30s. Late in the period some cooler air and precipitation are expected.
347 AM MDT Sun Mar 11 2018 Areas of freezing fog will cause reduced visibility along the HiLine this morning. Expect continued snow melt with areas of ponding water, refreezing overnight. Temperatures trend gradually warmer through mid-week.
407 AM CDT Sun Mar 11 2018 Widespread mist and pockets of freezing drizzle are in place this morning southwest of the MS river. Lows tonight will dip into the teens across much of MN and into the low 20s in WI.
Gusty north winds today will result in an elevated fire danger despite much cooler temperatures than what we saw Saturday.
524 AM CDT Sun Mar 11 2018 Rather active weather to the north and northeast of the area early this morning as a cold front interacts with a strong disturbance aloft. The cold front, currently located from roughly central AR southwest to central TX, will continue to move southeast today, and is expected to reach our northern zones between 12-15Z. A period of dry and much cooler weather can be expected through the first half of the week.
544 AM EDT Sun Mar 11 2018 High pressure will remain centered over the Great Lakes today providing dry weather.
355 AM EDT Sun Mar 11 2018 Low pressure will begin to pull east into the Canadian Maritimes this afternoon.
1035 PM MST Sat Mar 10 2018 Current surface analysis shows low pressure over southeast NE, with cold front well south and east of the area. Upper level analysis shows compact upper low now over far north central NE, moving southeastward.
507 AM CDT Sun Mar 11 2018 (Today and Tonight) A cold front will be south of our area by this morning. Behind the front, expect much cooler temperatures this afternoon and winds gusting from the north at 30 to 35 mph.
1212 AM EST Sun Mar 11 2018 High pressure will build south into the Central Great Lakes Sunday.
422 AM EDT Sun Mar 11 2018 Dry weather continues today under high pressure.
334 AM CDT Sun Mar 11 2018 Still dealing with some patchy fog/light freezing drizzle across the far eastern CWA this morning. Left the freezing drizzle mention in the forecast through 12Z and patchy fog through 18Z.
133 AM EST Sun Mar 11 2018 A ridge of high pressure over the Great Lakes will push into Pennsylvania tonight and Sunday.
Much of this area remains south of the cold front which continues to advance from along the I-30 corridor in NE Texas down near the I-20 corridor, as this warm sector remains quite unstable with moisture pooling ahead of the front. This will set the stage for a cool and dry start to the new work week as Canadian high pressure settles into the mid-section of the country, dominating our weather for much of the week. A gradual warm-up and moderation in temperatures will come late in the week with south winds returning as the high pressure center shifts to the east.
A cold front will move South across the Four State Region helping to continue convection into the early to mid morning Sunday, when ceilings will return to MVFR and convection will end as the boundary shift South.
1131 PM CST Sat Mar 10 2018 A strong PV anomaly located over wrn SD will help push a cold front south across the forecast area late this afternoon or early this evening. Cooler drier air will be the main story overnight into Sun, as a Canadian ridge of high pressure drops south over the plains for Sunday. Ketcham A mid/upper ridge is progged to build across the Central plains toward the middle to the end of the week bringing a warming trend with rising temperatures. A return to breezy south winds from a developing lee side trough and a tightening pressure gradient will lead to increasing and elevated fire weather concerns for Wed and especially Thu.
402 AM EDT Sun Mar 11 2018 Low pressure over Newfoundland this morning will continue to shift east into the Canadian maritimes today with mountain snow showers continuing through mid-day before tapering off.
321 AM CDT Sun Mar 11 2018 Upper low dropping southeast heading towards the deep south with a weakening impulse crossing the southern Rockies highlight short term features.
Cold front moving across the area this morning will bring in cooler temperatures as well as gusty north winds. Cooler weather will continue into the early part of the upcoming week as a couple of Canadian airmasses will slide south through the Plains.
Much cooler high temperatures are in store this afternoon, with expected values on the order of 15 to 25 degrees lower than those observed Saturday. The latest numerical weather models continue to suggest that an upper level ridge of high pressure over the Rockies will remain amplified into early this week and then slide east across the plains states during the middle of the week. Medium range models are in general agreement that broad upper level westerly to southwesterly flow aloft will return to the srn high plains late this week into the weekend as the above mentioned upper level ridge moves east of the plains states.
413 AM CDT Sun Mar 11 2018 At 3 AM, a weak area of low pressure was located over central Texas with a warm front extending east of the low into northern LA and a weak trough of low pressure extending S-SW of the low. A cold front extended from central AR to the low and then west of the low toward Midland. As the low moves east, it will drag a cold front through the CWA reaching College Station between 8-9 AM, Houston around 11 Am and then to the coast around 1 PM. Over the north, if the front comes in faster, the lower 70s might be too warm.
Temps in the low 40s expected today with onshore flow keeping temps cooler near the lake. As deep upper level trough digs south across the Great Lakes region late tonight, strong vort lobe and associated snow showers could clip far northeast IL and northwest IN.
Currently, northerly flow aloft across the region with upper level ridging off to our west. High pressure will build across the Dakotas today into tonight, resulting in a mostly clear sky. Temperatures today will moderate a few degrees from Saturday thanks to the increasing March solar radiation, with forecast highs mainly in the low/mid 30s. A few sub-zero readings definitely not out of the question where snowpack is deeper, though did not go this low for forecast lows at this time.
1247 AM EST Sun Mar 11 2018 Brief high pressure through early tonight.
Cold front is progressing southward through the plains with radar showing clearly defined boundary pushing south and westward into the southern most counties as of 21z. Red Flag conditions have been limited to the lower eastern slopes of the southeast mountains and southern I-25 corridor this afternoon. though accumulations should be limited to around 1-3 inches for the higher areas. Remainder of the area will see cooler temperatures with more mid/high cloudiness.
A more organized upper level trough will move in after 00z with widespread showers across the terminals that will persist throughout the remainder of the TAF cycle.
Patchy low clouds noted on satellite imagery ahead of the advancing cold front.
1225 AM EST Sun Mar 11 2018 Dry weather continues today under high pressure.
Cooler air will spread across western Kansas today as an area of high pressure at the surface builds into the Central Plains. Any lingering cloud cover early this morning will be giving way to clear skies by mid day as large scale subsidence develops behind an upper level trough that will be crossing eastern Kansas early this morning.
350 AM EDT Sun Mar 11 2018 A short wave impulse now located over the north central Canada is forecast to amplify as it cascades down an amplifying wrn NOAM long wave ridge axis. The downstream response will be some enhanced mid level short wave ridging across Lower Mi today. So with a little more sun expected and a slight moderation in the low level thermal profile from yesterday, afternoon highs will be a few degrees warmer today (mainly mid to upper 30s; with around 40 se of the Irish hills). While boundary layer temps are expected to be a few degrees above freezing, wet bulb cooling should keep precip all snow (with temps dropping with the onset of snow). The center of the upper low is forecast to pivot across Lake Huron late Mon night into Tues afternoon.
Temperatures along the island chain are in the lower 70s at this hour with southeast to south winds settling to around 10 knots well behind the convection in the eastern Straits. However, the wind profile below that will remain veered with enough instability to continue with at least a chance of showers with a few thunderstorms, assisted mostly by a very subtle trough aloft.
513 AM EDT Sun Mar 11 2018 High pressure will remain centered over the Great Lakes today providing dry weather.
359 AM CDT Sun Mar 11 2018 Water vapor imagery depicted an approaching upper level low just northwest of Kansas City, moving southeast. Challenging forecast for Central Missouri today as the upper low approaches this morning. Freezing levels get down to about 400-500 feet with surface temps remaining near 34-35 therefore any accumulation would occur on grassy and elevated surfaces and likely would not last long given warm ground temps.
435 AM CDT Sun Mar 11 2018 An inverted trough of low pressure will move through the Northland today. A more potent trough will dive southward from northern Canada and nose into northeast Minnesota late this afternoon.
1044 AM EDT Wed Oct 4 2017 High pressure exits today.
748 AM EDT Wed Oct 4 2017 Aviation Rain showers and isolated thunderstorms associated with a cold front will move through this morning, followed by decreasing cloudiness from the west behind the front this afternoon.
921 AM CDT Wed Oct 4 2017 A fairly amplified upper ridge remains in place over much of the central and eastern CONUS, keeping the dry pattern across the TN Valley. Although dry soils and clear skies will help aid in the diurnal heating, a weak trough will build northward across the southeast, with upper heights lowering slightly by this afternoon. Will have to watch for early decoupling of the boundary layer in our eastern valleys which then could yield cooler lows.
1021 AM EDT Wed Oct 4 2017 High pressure over the region will control the weather through the end of the week. Another "Chamber of Commerce" day as high pressure results in a mainly sunny and warm day. Temps slightly warmer than yesterday as thicknesses creep up and airmass continues to moderate. High pressure across the area will slowly move south and east.
857 AM PDT Wed Oct 4 2017 *Impacts: Possibility for freezing conditions across the Scott Valley in California tonight. The main forecast challenges for today will be whether or not some areas in California see freezing temperatures tonight, and whether or not the frontal system coming in this weekend will bring any measurable precipitation to the Umpqua Basin. A thermal trough will then strengthen resulting in increasing winds and seas into the weekend.
705 AM EDT Wed Oct 4 2017 VFR conditions with clear skies and calm winds expected through the forecast period with high pressure remaining in control of the weather pattern.
1120 AM EDT Wed Oct 4 2017 Update/Marine Rain showers and isolated thunderstorms associated with a cold front will move through this morning, followed by decreasing cloudiness from the west behind the front this afternoon.
A thermal trough will then strengthen resulting in increasing winds and seas into the weekend.