Aikyam-Lab/Synoptic-Bench huggingface dataset:
Visibility/ceilings expected to fall into IFR from KSPS northward through most of Oklahoma terminals late tonight and tomorrow morning as warm front develops near Red River and lifts north as 50+ dewpoints spread northward into large area of 40 degree t/td low level environment. /issued 353 PM CST Sun Feb 26 2017/ For tonight, scattered showers/storms will be possible across southeast Oklahoma as isentropic ascent increases and a warm front lifts northward.
Temperatures look to increase Monday as the sfc warm front associated with the warm air advection makes its way north, so highs ranging from the lower 30s north to the lower 40s south are expected. They do agree on the location of an inverted surface trof over the forecast area. They disagree on the placement and strength of embedded pieces of energy progged to affect the region ahead of a short wave trof in the lee of the Rockies.
Flat upper level ridge over MT will shift a little east overnight. Will maintain some pops across the south but overall confidence on the low side. The next mid level trough will approach the region Monday.
For Monday night, a warm front will lift north across the region. With the warm front moving north across the area tomorrow night, it should be fairly mild, dropping into the mid 40s to around 50.
A complex low pressure system has developed over northern Texas and moves eastward over the next 12 to 24 hours. Also series of shrtwvs embedded in the long wave trof will ripple across the region drg this period further supporting storm development. Southeast Texas and southern Louisiana will remain in the warm sector overnight allowing for temperatures to hold in the low to mid 60s. This moisture looks to ride up and over the warm front that is expected to be located in Arkansas and central Mississippi during this time period.
Cooler than average temperatures will persist the next several days as two fast moving weather disturbances move into the region.
1030 PM EST Sun Feb 26 2017 High pressure over the region will move to the coast overnight.
501 PM MST Sun Feb 26 2017 The upper level flow in the atmosphere shifts to southwesterly tonight ahead of a developing trough of low pressure near the west coast of the country. On Monday the trough slowly moves east but remains well west of the rockies. Looking at readings in the low teens west to low 20s east. The better performing bias corrected grids along with met/mav and 2m guidance are a bit cooler averaging around 50 in northwest Yuma county where some snow cover exists to the mid/upper 50s elsewhere.
Weak low pressure riding along the boundary in southwest ND is producing areas of light snow southwest with flurries downstream into south central ND. With all models agreeing on this setup and generating qpf, have raised pops to categorical with snow mentioned resulting in between 1 and 2 inches north of I-94, and within the Highway 83 and 85 corridor.
613 PM EST Sun Feb 26 2017 High pressure over the region will move to the coast overnight.
The warm front will enhance showers and thunderstorms across the forecast area with the assistance from disturbances aloft shifting across the area as well.
502 PM EST Sun Feb 26 2017 High pressure will bring clearing skies this evening.
/ISSUED 400 PM CST Sun Feb 26 2017/ Dense high cloudiness atop lower cu cloud streets this afternoon as temperatures have warmed into the lower 70s. Southwestern warm and more moist air riding up and over the relatively cooler drier surface dome of air providing just enough gentle lift along the theta e surfaces to generate scattered light showers. Middle to upper 60 dew point air riding over slightly cooler shelf water in the middle 60s may allow maritime fog to develop. warmer mid-level flow pulling in moist air will equate to subsequent day warming back into the lower to middle 80s the next couple of days.
1030 PM EST Sun Feb 26 2017 High pressure will pass south of Pennsylvania tonight, then off the east coast Monday.
lowered temps a degree or two as fcst mins had either already been reached or were close to being reached compared to the warm sector south of the warm front across the southern two thirds of Northeast Texas and Northern Louisiana. This trough will open up in the Middle Red River Valley of Southeast Oklahoma and Western Arkansas towards sunrise. most of the rainfall has remained near and to the north of the I-30 corridor but as we go through the remainder of the night and as the trough from the northwest nears, we should begin to see this more scattered to numerous precip coverage move south and east towards the I-20 corridor of Northeast Texas into Northern Louisiana.
539 PM EST Sun Feb 26 2017 A ridge of high pressure will build east across Pennsylvania today, then off the east coast Monday.
Rainfall accumulation will generally be light with snow showers in the higher elevations. Dry weather conditions then return for the remainder of the workweek along with a gradual warming trend as high pressure builds aloft. Thus, should see some snow showers across the region with light accumulation in the higher elevations. Meanwhile, overnight temperatures will remain in the 30s to lower 40s as this system will bring a reinforcing shot of cooler air across the region. Dry weather conditions are then likely for the remainder of the week as high pressure builds out over the eastern Pacific.
Despite the light south breeze, still expect lows to drop into the low 20s across most of the area due to the dry air. I still included a mention for patchy fog given the low level moisture, but don't think it will be deep enough for anything more than that. A cold front will push through Monday morning.
706 PM EST Sun Feb 26 2017 A cold front has moved out of the area.
836 PM EST Sun Feb 26 2017 High pressure will pass south of Pennsylvania tonight, then off the east coast Monday.
The effects of the southerly surface winds can also be seen in the dewpoints that have climbed from the upper 20s to mid 30s at 6 am to the lower 40s northeast to upper 50s south as of 3 PM. Temperatures will be warmer with highs expected to range from near 70 northeast to around 80 degrees west.
As such, kept the low POP for Martin/Saint Lucie Counties tonight, but held off on potential for activity to move onshore until after midnight.
following a cold front now south of the area. A slightly cooler and much drier air mass is now in place across the forecast area, with temperatures in the mid 70s to lower 80s and dew points mainly in the 30s and 40s. High temperatures tomorrow will be several degrees warmer than today and the dew points will be back up into the 60s. Period will begin with a L/W trough over the western U. A strong subtropical ridge will extend across the Gulf of Mexico and Florida. The L/W trough will lift out and progress east through the remainder of the week.
546 PM CST Sun Feb 26 2017 Southerly flow on the west side of a large high pressure system over the southeast CONUS is forcing low level warm advection over the area this afternoon. but very dry air left in the wake of the high pressure system is eating into the precip over our area. Lows tonight should be around 5 to 10 degrees warmer than last night due to cloud cover and continuing southerly flow. slightly cooler in the mid to upper 50s further east. The warm front will likely be just along or north of the MO/IA line on monday night.
Have kept with small precip chances for much of the area Monday afternoon as warm air advection develops on down ahead of the surface warm front. 850-925mb temps rise about 5C from today and should still support highs at least a few to several degrees warmer despite thickening cloud.
with rainfall amounts likely to be less than a tenth of inch due to the low level dry air. This wave will quickly traverse into the lower Mississippi Valley by this evening. By Monday night, a warm front will begin to lift northward across the area.
An area of low pressure currently over southwest ND will slide eastward some tonight. This system will leave behind a trailing cold front which should be draped east, west across the region. With a developing low pressure system over western South Dakota on Monday, the cold front should lift northward as a warm front with temps climbing into the 40s for most of this CWA. The GFS shows the warm front along the ND/SD border with sharp temperature contrast. If the front stalls over this CWA then temperatures could be as much as 10 degrees cooler.
This wave will quickly traverse into the lower Mississippi Valley by this evening. By Monday night, a warm front will begin to lift northward across the area.
644 PM EST Sun Feb 26 2017 High pressure centered over southern Ohio will move off the Virginia Coast on Monday.
IFR ceilings are likely overnight/Monday morning at all TAF sites as the low levels of the atmosphere saturate. The effects of the southerly surface winds can also be seen in the dewpoints that have climbed from the upper 20s to mid 30s at 6 am to the lower 40s northeast to upper 50s south as of 3 PM. Temperatures will be warmer with highs expected to range from near 70 northeast to around 80 degrees west.
As the center of high pressure over the southeastern U. High pressure building into the north will turn winds easterly tonight and then southeasterly for Monday and through mid-week.
East-southeast winds near the surface veered to the south in the lower levels and then to the west southwest in the mid levels. High resolution models are supportive of some light convection developing on maritime return around 3 am but well out ahead of the more organized trough-induced convection. SPC currently is indicating a marginal risk for severe storms with some limitations noted on what should be a capped layer in the lower levels that may need to be overcome. Mardi Gras Day still appears to be between systems, but with temperatures reaching the lower 80s in some locations, an isolated shower or two can not be ruled out, but most should remain dry.
It's been a quiet day across Middle Tennessee with high pressure centered over the eastern part of the state.
807 PM EST Sun Feb 26 2017 High pressure will bring clearing skies this evening.
621 PM EST Sun Feb 26 2017 High pressure will pass south of Pennsylvania tonight, then off the east coast Monday.
555 PM CST Sun Feb 26 2017 Leeward troughing will induce a wind shift to the south later tonight, then increasing to around 5 to 15 mph on Monday. Otherwise warmer air will advect into the area, with H850MB temperatures rising several degrees.
As usual Sonora will be the lowest spot and may drop to IFR once again. High clouds will make it a little tougher to clear out the low clouds, so will delay the return of VFR to late morning or early afternoon for most spots. With some high cloud cover also overspreading the area, temperatures will be mild tonight with lows expected to range from the mid to upper 40s across the northwestern part of our area, to the lower 50s across our southeastern counties. On Monday, a stronger upper trough will move east across the Intermountain West and Great Basin, into the central Rockies by late afternoon.
Temperatures tonight will fall into the 20s and 30s, but we'll warm up into the 50s and 60s as a warm front lifts north into the area.
Temperatures have risen above freezing in most areas, with the warmest readings again in the snow free portions of the CWA.
1031 PM EST Sun Feb 26 2017 Currently - High pressure moving off the Carolina Coast is responsible for moderate and freshening northeast breezes across the Keys area. Flow arriving off the warmer Atlantic waters has allowed the dew points to climb to near 70 with temperatures broadly in the mid 70s. Surface winds will gradually turn more easterly and increase overnight through tomorrow as a high pressure system moves off the Carolina Coast and spreads out into the Atlantic.
752 PM EST Sun Feb 5 2017 High pressure will move east across Indiana and Ohio tonight providing fair weather with seasonably cold temperatures. Shower chances will increase during the day Monday as a low pressure system approaches from the plains.
High pressure will slide by the east later this evening. Low pressure over the central plains Monday afternoon will have a warm front stretching east into the western Great Lakes by evening. Look for VFR conditions through late afternoon on Monday with IFR CIGS/VSBYS arriving very quickly Monday evening with the approaching of the warm front. The IFR conditions will be accompanied by drizzle with a small threat for freezing drizzle in the KMSN area toward midnight as temperatures approach freezing. For now, it looks like the freezing precipitation threat will stay north of KMSN Monday night.
648 PM EST Sun Feb 5 2017 High pressure crosses Monday morning.
The highest sustained winds and gusts up to 22 KTs will be this evening and on Monday. Cloud cover continues to keep temps cooler than model forecast projections over most areas.
904 PM EST Sun Feb 5 2017 Isolated rain or snow showers will accompany a weak cold front this evening.
02Z Surface analysis places a warm front over portions of Southern Mississippi, Northern Louisiana, and into the Red River Valley of Texas and Oklahoma. Regional WSR-88D radar trends have shown an increase in showers near the warm front. Expect the clouds to slowly begin to lift north over the next couple of hours as a secondary warm front that remains over Southern Mississippi begins to lift north. The warm front will surge through the entire Mid-South by Monday morning. This should allow temperatures to warm up into the lower 70s. Isolated shower and thunderstorm development may occur over Eastern Arkansas during the afternoon as the upper trof begins to swing east. The upper trof will move into the area Monday Night. Showers and thunderstorms will blossom over the Mid-South Monday Night ahead of the upper trof.
Warmer esp in the southeastern half with nr 30 psbl in the far southern RRV.
653 PM EST Sun Feb 5 2017 High pressure and dry air will build in tonight through early Monday behind a weak cold front.
623 PM CST Sun Feb 5 2017 Despite the passage of a weak cold front early this morning, warm advection will be the theme for the next few days before a strong cold front sends temperatures back to near-normal by the mid-week.
A much warmer day today as expected. As moisture streams into the region, patchy fog and drizzle will likely develop across the region later tonight and early Monday ahead of a subtle surface warm frontal boundary. Ahead of the low, gulf moisture will continue to stream northward into the region.
605 PM EST Sun Feb 5 2017 A breezy cold front will pass with little if any precipitation this evening. High pressure and fair weather on Monday will be followed by widespread precipitation moving in Monday night and lasting into mid-week.
Temperatures will be fairly mild overnight tonight with lows in the lower 20s to lower 30s. Overnight lows Monday night will remain mild most areas in the lower 30s.
559 PM EST Sun Feb 5 2017 High pressure centered southwest of the forecast area with a low pressure system crossing Southern Canada and the Great Lakes Region. High pressure will rebuild across the area tonight and Monday.
744 PM EST Sun Feb 5 2017 A cold front will pass through the area this evening triggering a few snow showers and flurries. Monday will feature dry weather under a high pressure system.
Winds expected to shift around to the southeast tonight, then to the south into Monday as the area of high pressure shifts east. A developing upper wave to eject eastward from the Rockies Monday, with the associated area of developing low pressure situated along the front range of the Rockies. This area of low pressure will begin to move east into the western high plains by late Monday. Dewpoints also increasing with above freezing dewpoints expected to push across the deeper snowpack in northern Iowa.
1021 PM EST Sun Feb 5 2017 High pressure centered southwest of the forecast area with a low pressure system crossing Southern Canada and the Great Lakes Region. High pressure will rebuild across the area tonight and Monday.
Models are notorious for not handling the cold air in the western valleys, which will aid in the low level stability and producing a stronger stable layer at mountain top level than what the models think.
Low levels are warmer than this morning and 24 hrs ago as the warm front pushed north today with more of a maritime airmass. /issued 322 PM CST Sun Feb 5 2017/ Surface observations show that a warm front is located just north of the CWA across southern Mississippi and central Louisiana. Temperatures will respond by moderating with highs increasing into the mid 70s except along the coastlines where cooler coastal waters limit warming.
The far eastern edge of the Texas Panhandle has been held into the 50s as upsloping on the eastern side of the low pressure allows CAA to filter in. Due to the high temps, low RHs, and high winds, fire weather issues are of great concern.
1011 PM EST Sun Feb 5 2017 High pressure and dry air will build in tonight through early Monday behind a weak cold front.
Increasing low level moisture and a lack of ice crystals will bring a chance for freezing drizzle or drizzle to parts of central Wisconsin late in the day on Monday.
a short wave trough was over the central Canadian Prairies. High pressure north of state will keep north and northeast low level flow in place. High pressure north of the waters moves east through the early part of this week with winds veering and remaining generally light in a relaxed pressure gradient. A cold front moves through the waters Thu. with increased SW winds ahead of it that shift to northerly when high pressure builds in behind the front Fri.
Low level high pressure will slide eastward through tonight with mostly zonal flow aloft.
with the biggest issue thereafter being elevated srly winds as low pressure deepening over west Texas tightens the gradient and a stronger flow off the sfc mixes down. /issued 300 PM CST Sun Feb 5 2017/ Wx map shows warm front moving north across East Texas and North Louisiana, positioned roughly south of I-20.
/00Z TAF/ Surface analysis at 23z has warm front in north Texas with a lee trough over the high plains.
Lingering clouds and shallower mixing should keep temperatures cooler over generally the northern half of KS.
1045 PM EST Sun Feb 5 2017 High pressure crosses Monday morning.
539 PM CST Sun Feb 5 2017 211 PM CST Non-winterlike weather continues as high pressure will briefly transit the area tonight. Otherwise light winds and at least partially clear skies will result in a cooler night than last night. Low level moisture will move northward ahead of a rather quick moving upper trough across the western U. An elevated warm front will shift northeastward through the afternoon, though ahead of any deeper moisture which would preclude much more than lighter rain showers in the afternoon.
High pressure dominates the Gulf, supporting the onshore flow.
Warm frontal boundary sets up near our northern border by midday, while southerly low level flow taps into increasing moisture. Temperatures will be quite tricky with much warmer air arriving, but some snowpack to contend with. Will continue to nudge towards the warmer guidance seen in the BCCONSMOS. The warmer regional CMC and ECMWF place the Missouri Valley well into the mid 50s for highs, however with snowcover, think that this is a little extreme. Highs will range from the mid 30s in the highway 14 corridor to the mid/upper 40s in the Mo Valley.
623 PM EST Sun Feb 5 2017 Isolated rain or snow showers will accompany a weak cold front this evening.
/issued 448 PM EST Sun Feb 5 2017/ Centers of high pressure are in place across the southeast and the adjacent Atlantic waters east of the Carolinas. A weak trough and associated boundary is just north of the northwest Bahamas islands.
654 PM EST Sun Feb 5 2017 A breezy cold front will pass with little if any precipitation this evening. High pressure and fair weather on Monday will be followed by widespread precipitation moving in Monday night and lasting into mid-week.
West winds of 15-25 mph are possible across the PB and s into the Lower Trans Pecos. Cold front will slowly push into the CWFA Wed, but looks to stay just e/n of a GNC-MAF-OZA line as it backdoors into the area. Only a little cooler Thur and then warmer Fri. Potentially very warm next Sat (M80s?) before a cold front on Sunday. It will be very dry though, as low as 10% across the Lower Trans Pecos.
600 PM EST Sun Feb 5 2017 Isolated rain or snow showers will accompany a weak cold front this evening.
Clouds and light rain continue in a zone of weak isentropic lift north of a sfc warm front that bisects the area this afternoon. The warm front will lift north of the region this evening with a light southerly flow developing across the entire area. Dry conditions expected on Monday with a continued mix of sun and clouds with highs warming in the low to mid 70s inland to around 70 along the coast.
Mostly sunny skies today across the area as weak high pressure moves northeast of the state, with light north winds slowly shifting to the east then southeast through today. Also kept overnight lows several degrees warmer across the south as clouds come in around the midnight hour and move northward.
Highs in the lower 40s north to the lower 50s south with chance off by 3 degrees or more degrees if moisture and clouds come in sooner or later than forecast.
Flight categories will fall at all sites through Monday morning as a warm front lifts north into the state. Once the warm front lifts north, ceilings will lift back into the MVFR range but do not expect to see improvement to VFR levels.
Weak ridging aloft will be over Colorado this evening with a moderate westerly flow aloft. Moisture will be increasing over the mountains Monday night as flow aloft increases behind the passing trough from a jet pushing in from the west. The downsloping winds will help keep minimum temperatures mild across the area and the lower foothills and plains dry.
657 PM EST Sun Feb 5 2017 High pressure centered southwest of the forecast area with a low pressure system crossing Southern Canada and the Great Lakes Region. High pressure will rebuild across the area tonight and Monday.
446 PM MST Sun Feb 5 2017 Low amplitude ridge is crossing the northern Rockies into the northern plains. however warmer air is overrunning the arctic airmass in place across western SD. Max temp forecast for Monday will also be complicated much like today given the lack of confidence at which extent the warmer air reaches the surface across the SD plains.
For Monday low pressure develops over the southeast portion of the forecast area with winds behind it and generally along/west of the interstate reaching gusts to 25 mph from the northwest. For Monday am going for highs in the low to upper 60s.
953 PM EST Sun Feb 5 2017 No major updates this evening as high pressure builds in across the region. /issued 448 PM EST Sun Feb 5 2017/ Centers of high pressure are in place across the southeast and the adjacent Atlantic waters east of the Carolinas. A weak trough and associated boundary is just north of the northwest Bahamas islands.
648 PM EST Sun Feb 5 2017 A cold front will pass through the area this evening triggering a few snow showers and flurries. Monday will feature dry weather under a high pressure system.
A more intense, narrow band of snow will form around midday Monday near the Hi-Line as a cold front organizes across this area.
Expect the clouds to slowly begin to lift north over the next couple of hours as a secondary warm front that remains over Southern Mississippi begins to lift north. The warm front will surge through the entire Mid-South by Monday morning. This should allow temperatures to warm up into the lower 70s. Isolated shower and thunderstorm development may occur over Eastern Arkansas during the afternoon as the upper trof begins to swing east. The upper trof will move into the area Monday Night. Showers and thunderstorms will blossom over the Mid-South Monday Night ahead of the upper trof.