Aikyam-Lab/Synoptic-Bench huggingface dataset:
349 PM CST Sat Feb 3 2018 A weak trough pushed across the region leaving a dry N to NW flow but rather warm temps. With low clouds trapped behind the front, highs in the NE will likely occur in the morning with temps holding steady or falling from the lower 30s.
Showers will return to the CWA tonight ahead of this next system with the highest chances during the second half of the night across northwest portions of the CWA (southeast Alabama).
South- southwest winds in the lower levels will promote warm air advection throughout the day, allowing for a moderation in temperatures. with SLRs around 10 or lower given forecast upper air profiles and daytime max temperatures forecast to be above freezing. Any rain/mix will rapidly change back to snow late Sunday afternoon and evening as strong cold air advection will ensue with the passage of cold front.
Breezy winds due to tight pressure gradient with IL sandwiched between 1036 mb high pressure over eastern NC and 1006 mb low pressure over south central SD. Latest hi-resolution models bring 1006 mb low pressure into central IA by early evening and along the eastern WI/IL border by midnight tonight. High pressure dominates the eastern half of the CONUS this morning as a few weak waves move through the Midwest in predominantly northwesterly flow. With the high pressure ridge sliding to the east, southerly flow has picked up and will continue to increase into the morning. The warmer airmass moving into the region will pull the high temperatures up into the upper 30s/40s this afternoon.
1201 PM CST Sat Feb 3 2018 For the 18Z TAFs, a surface trof of low pressure has moved through the terminal sites with north winds in its wake. Then a cold front is expected to enter the Oklahoma Panhandle Sunday morning, moving through KGUY around 15Z Sunday. /Issued 219 AM CST Sat Feb 3 2018/ The upper air pattern will not change much through this forecast as a ridge holds just off of the west coast of the U.
207 PM MST Sat Feb 3 2018 The trailing edge of a trough and surface cold front that is plunging south over the plains states will continue riding over eastern UT and western CO through tonight.
153 PM EST Sat Feb 3 2018 Breezy and dry conditions will give way to a period of snow later tonight into Sunday as low pressure tracks through the Lower Great Lakes.
444 PM EST Sat Feb 3 2018 A storm system will move north of the region Sunday dragging a cold front through the area later in the day and overnight.
241 PM EST Sat Feb 3 2018 Scattered showers across the region will continue this afternoon as a cold front lingers and washes out.
Temperatures range from upper 60s lower the 70s, except for the lower 60s where clouds linger. The inherited forecast mentioned some patchy fog during the evening over the cooler near shore waters to the coastal counties. Low tempeatures tonight will be in the upper 50s across the northern ranchlands to the lower 60s across the Rio Grande Valley. A weak trough of low pressure will move across the area Sunday allowing surface winds to turn to the southwest to west in the afternoon. A weak cold front is expected to remain north of the area Sunday night but could bring a slight chance of rain to the coastal waters.
As a result, have expanded low chance pops a little farther N to the I-20 corridor this afternoon to account for these SHRA, and did increase pops to categorical across portions of the Lower Toledo Bend Country into the Srn tier parishes of Ncntrl LA.
116 PM EST Sat Feb 3 2018 High pressure centered over the eastern Carolinas and VA will eject eastward this afternoon as low pressure moves from the upper Plains into the western Great Lakes. As the low moves eastward on Sunday it will push a cold front through the region with widespread rainfall.
Overnight lows will range from the low to mid 40s across the Hill Country to mid 50s along the coastal Plains.
Temperatures are also running a bit warmer in some locations, particularly winds are blowing.
This lowering of dewpoints until later in the day led to lower humidity values. This southerly flow and WAA will help temperatures climb into the lower 50s this afternoon with breezy conditions with gusts near 30mph possible in the afternoon. The lower pressure over the northern plains will move east with an associated cold front pushing into our area Saturday night into Sunday morning. Strong surface ridging and colder air will build into the region Sunday with low to mid level frontogenesis initiating possible snow showers Sunday mid morning into the afternoon over the western CWA.
To the northwest of the low, light to occasionally moderate snow will continue across the U.
440 PM EST Sat Feb 3 2018 High pressure will be shifting farther off the East Coast tonight. A low pressure system and associated cold front will cross the region Sunday bringing widespread rain.
1039 AM CST Sat Feb 3 2018 South winds slowly returning to the area this morning as high pressure slowly slides to the east.
252 PM CST Sat Feb 3 2018 Cold front had moved into northeast NE at 20z, and will quickly spread through the remainder of the forecast area this evening. The 1031 arctic high pressure quickly moves in Sunday afternoon, then moves east Sunday night.
347 PM CST Sat Feb 3 2018 One wave has departed with a 1 to 2 inch snowfall and freezing drizzle for the Sisseton hills, however the stratus remains in place. High pressure moves overhead for Sunday with little mixing, add in fresh snow cover and it will be a struggle to warm during the day. The Hudsons Bay upper level low pressure area will dominate our weather bringing deep northwest flow over our cwa from Sunday night through Saturday.
The weather doesn't change all that much under persistent high pressure, and the following week will be no exception. There will be some warmer and cooler days as weak fronts pass, but very little, if any, precipitation will fall outside of northern and far eastern Douglas county. The upper level ridge will remain anchored to our west while broad troughing stays firmly entrenched over the central and eastern continental US. Each system, one on Sunday night and anther on Wedensday night, will make for more clouds and slightly cooler temperatures, but warm and clear conditions will make their return over a very short time.
251 PM CST Sat Feb 3 2018 Cloud cover has moved in ahead of the upper trough in the Plains/Lower Midwest. Should temperatures drop a bit further, chances for some snow and possibly some freezing rain/sleet may occur. Model trends are somewhat warmer, so did not put in mention of accumulation with the potential for mixed precip.
1012 AM MST Sat Feb 3 2018 Upper trof axis is currently dropping southeastward across northwest and central Colorado, spreading clouds and light snow across the mountains along/west of the Continental Divide. System is relatively fast moving, so accumulations will remain light with mainly 1 to 3 inches across the higher peaks above 11000 feet. Should be another windy day as this system crosses the state this morning and northwesterly winds spread down into the lower elevations. Cooling aloft today behind the system should result in temperatures around 5 degrees cooler out west vs yesterday. Meanwhile, better mixing on the plains should result in a temperatures a few degrees warmer than yesterday. Lee trof should keep westerly winds up across the southeast mountains and lower eastern slopes which will consequently keep min temperatures in the 30s for these well draining areas.
As the winds shift east to southeast tonight into Sunday, temperatures will gradually warm up into the low to mid 80s.
Will keep pops/QPF in place but suspect this is overdone as high pressure builds in and begins to dry us out. Light snow is beginning to spread into the western CWA within region of broad lift out ahead of the low pressure system located over western SD. Soundings do still support some brief freezing rain or sleet so will leave mention of this in the forecast. It still appears snow accums will be light/minimal over much of the CWA, with the highest amounts around an inch or slightly more across the far northeast CWA. Arctic high pressure will build in at the sfc on Sunday. Coupled with an upper trough that lingers over the region through mid week this combination will result in temperatures at or below average through the period. A few weak low pressure systems will clip through the region.
Strong ridge of high pressure will remain off the West Coast into mid-week.
333 PM EST Sat Feb 3 2018 Rain and snow should return to the area late tonight and Sunday with crossing low pressure. The trough should spread snow across the area late tonight, with accumulations less than an inch by early morning. Warm advection ahead of the low should result in a mix or change over to rain from PIT S. The exception should be the Laurel Highlands and Garrett county MD where the higher terrain should stay mainly snow. Areas N of I 80 and the higher elevations should see 2 to 4 inches of snow through Sunday evening. Precip should change to all snow Sunday evening as the low's associated cold front crosses. Scattered snow showers should continue after FROPA with upper troughing and cold NW flow.
301 PM EST Sat Feb 3 2018 A storm system will move north of the region Sunday dragging a cold front through the area later in the day and overnight.
Also, boundary layer will cool quickly this evening and some areas may still be cold enough for some pockets of freezing rain once the liquid precip begins. Still looks like a fairly rapid transition to rain, but will keep the winter weather advisory in place with some light accumulations of snow/sleet and freezing rain possible.
307 PM EST Sat Feb 3 2018 The main forecast issue this afternoon is potential for freezing rain and or sleet for portions of northeast GA overnight and into Sunday morning. including how fast the dew points rise above freezing and how long the wedge holds the cold air in the far northeast corner. For now the current advisory still looks okay but the freezing rain/sleet could reach parts of the surrounding counties but not enough for an advisory. Partial thickness values show mostly a freezing rain/sleet event with little snow. 20 with some higher amounts possible for the higher elevations. Some freezing precip may hang on until around noon in isolated areas in the higher elevations.
1217 PM CST Sat Feb 3 2018 A cold front associated with a low pressure system will swing through the region Saturday, entering northeast Nebraska in the early afternoon, and exiting the CWA this evening. Warmer temperatures are expected in the southwesterly flow ahead of the front, especially in southeast Nebraska where highs in the lower 50s will be possible.
Southeast Oregon and the Snake Plain the NV border are dry and breezy today, with a slight chance of showers Sunday over northern Malheur and the lower Snake Plain.
High pressure centered across the Carolinas will move offshore tonight and onshore easterly winds will begin shifting southerly. As the low deepens and moves eastward across Georgia, precipitation chances will be on the rise through the morning from northwest to southeast across the region.
Sfc pressure gradient should support gusts 17kts-25kts ahead of cold frontal passage expected 04/12Z-04/18Z.
Our area is sandwiched between a high pressure system over the epac and disturbances moving over the top of the high pressure across northern wa.
A cold front is now crossing west central SD. Drier air will move into the CWA Sunday morning as Canadian high pressure moves in. This will bring a second reinforcing cold front to the area Sunday night along with another round of snow.
A strong cold front currently across the northern Plains will drop into northeast OK toward daybreak and exit the region during the afternoon.
250 PM EST Sat Feb 3 2018 Currently - A high pressure system is exiting eastwards off of the United States this afternoon, resulting in gentle to moderate northeast to east breezes across the Florida Keys. The overall pattern is not amplified enough to bring periodic cold fronts through the Florida Keys. Winds will surge and lull, out of a broadly easterly direction as each ridge spreads across the area. The first ridge will move off into the Atlantic tonight as a trough moves in behind, resulting in quickly relaxing winds through the remainder of the weekend.
355 PM EST Sat Feb 3 2018 A storm system will move north of the region Sunday dragging a cold front through the area later in the day and overnight.
Cold front came through with decent push today with gusts up to 50 mph at both Judith Gap and Sheridan with the frontal passage.
/issued 511 AM CST Sat Feb 3 2018/ High pressure that brought the cooler air is sliding off the mid- Atlantic states this morning as warm air is pushing the old cold front northward into the cntrl Tx coast as a warm front. The warm front in cstl Texas is expected to stall along the I-10 corridor tmrw. But another cold front making the coast during the aftn hours.
Otherwise southerly flow will pick up today, as low pressure in northeastern NM deepens and translates east/southeast into western and central Texas. The southerly flow ahead of the low will advect moisture northward into our area and result in warmer temperatures as well. Winds will be gusty out of the south/southwest, and temperatures will warm into the low/mid 70s for northern areas, and upper 60s farther south where more cloud cover, isolated showers will be.
410 PM EST Sat Feb 3 2018 High pressure will be shifting farther off the East Coast tonight. A low pressure system and associated cold front will cross the region Sunday bringing widespread rain.
with SLRs around 10 or lower given forecast upper air profiles and daytime max temperatures forecast to be above freezing. Any rain/mix will rapidly change back to snow late Sunday afternoon and evening as strong cold air advection will ensue with the passage of cold front.
1028 AM MST Sat Feb 3 2018 A broad upper trough covers much of the CONUS, and a weak wave is passing over WY. Some freezing rain may be occurring as well.
239 PM CST Sat Feb 3 2018 (Tonight and Sunday) Short wave trough axis will swing through the area early this evening, with skies becoming clear for the overnight period. Another warm day is expected tomorrow ahead of a weak backdoor cold front approaching late in the day.
231 PM CST Sat Feb 3 2018 Upper pattern has a ridge centered along the CA coast with a weak trough over the center of the country. As this trough swings east zonal flow will set up behind it for the first of the week.
152 PM EST Sat Feb 3 2018 High pressure centered over the eastern Carolinas and VA will move offshore this evening. A low pressure system and associated cold front will cross the region Sunday bringing widespread rain.
302 PM CST Sat Feb 3 2018 Temperatures running about 10 ten degrees warmer then this time yesterday. Dry low level air over the region will likely delay the expected rain ahead of the trough until later in the evening. A cold front will pass through the area in the early to mid afternoon hours with the brunt of the cold air holding off until the overnight hours. Otherwise skies will be partly to mostly cloudy during the night with lows falling back to below freezing.
A cold front will move through all of the TAF sites late in the period. /Issued 1039 AM CST Sat Feb 3 2018/ South winds slowly returning to the area this morning as high pressure slowly slides to the east.
The lower conditions will return to the same areas this evening. Areas with the lower conditions will clear to VFR by late this morning, then expect IFR to return to the same areas tonight. Offshore high pressure and a thermal trough near the coast will strengthen through the weekend.
with high pressure pushing into the Plains region behind the front. Model soundings do suggest locales seeing a fzdz/freezing fog before a transitions to light snow. ENE surface flow due to the approach if the ridge will allow for some upslope potential for minor accum. A few hundredths of an inch of freezing rain is also possible in the aforementioned area. light freezing drizzle along with freezing fog. Northwest upper level flow persists, sending a few minor troughs through that will provide a few potential chances for precipitation.
1248 PM EST Sat Feb 3 2018 High pressure will build off to the east offering dry weather and a warming trend today. A cold front will cross the region later Sunday, changing the rain and snow over to snow.
123 PM CST Sat Feb 3 2018 Surface analysis has an area of low pressure over northwest IA with a warm front extending along the MN/IA border into southern WI. Had one weak mid-level trough pass through overnight through this morning that dropped a dusting to locally a couple inches of snow. Look for the low to continue moving east through eastern IA and along the IL/WI border this afternoon through tonight. As it does, look for snow to redevelop this afternoon, continuing through tonight with increasing mid-level frontogenesis north of the low. Some of this snow may mix with rain or temporarily chance to some light rain across the far south this afternoon as warmer air gets drawn north in the warm sector. Arctic high pressure builds into the area Sunday night for mostly clear and bitter cold conditions.
Light north winds this evening will trend variable by Sunday morning ahead of a cold front presently edging through the Platte River Valley of Nebraska. Upshot is that cooler northeasterlies should invade our SE Panhandle counties and result in a healthy contrast in highs from NE to SW, before the front backdoors over the remainder of the region.
A large ridge remains in place in the ern Pac extending nwd into the ern Gulf of Alaska this morning. Northwest flow downstream from this ridge dominates the Great Basin. The weak wave that crossed the area overnight has moved on downstream and the lower clouds have dissipated somewhat. A slight retrogression of the ridge Sun looks to allow a somewhat better defined short wave to dig swd thru UT on Mon with a trailing vort max on Tue. This sends a cold front thru the CWA and brings a colder airmass in its wake.
A light southeasterly wind flow this evening will shift to the northwest in the wake of the cold front. Strong thunderstorm wind gusts between 35 to 45 mph are possible with the strongest storms just ahead of the cold front.
Broken MVFR ceilings and patchy fog to build in 08z to 12z as a cold front approaches. /issued 936 AM EST Sat Feb 3 2018/ In the wake of yesterdays front, slightly cooler and drier air continues to filter into the region. As high pressure nudges in from the north, expect light east winds to become a bit gusty this afternoon. Breezy offshore winds will linger into the early afternoon as high pressure nudges in from the north.
The low-level response will be a cold front that sweeps southward across the area this afternoon and evening. In fact the initial lift is centered around -2 C, which could result in drizzle as opposed to ice with surface temperatures below freezing. Increased the winds behind the cold front as the high pressure builds southward into Kansas in the morning through mid afternoon.
/issued 343 AM CST Sat Feb 3 2018/ A dry, breezy, and warm day is on tap today as an upper trough moves from the central Rockies southeast across the southern high plains this afternoon. We continue to side towards warmer temperatures on the Caprock and lower dewpoints, along with slightly stronger MOS guidance winds. A weak cold front will slip southward later this afternoon and early evening but only a weak gradient - surface winds should weaken fairly quickly this evening though around 10-15 mph northerly breezes may briefly follow the front.
803 AM PST Sat Feb 3 2018 A ridge of high pressure aloft will control the weather across Southern California through the coming week.
1140 PM CDT Mon Jul 24 2017 A relatively dry air mass currently in place will slowly erode early Tuesday morning as southerly return flow commences underneath a weakening upper-level ridge.
The HRRR is adamant however that widely scattered showers will develop later in the Permian Basin so will keep the low chance PoPs going for this aft/eve. An upper high will build into the area causing temps to climb back above normal over the next several days. The high center will reposition back to the west over the weekend opening up West Texas and southeastern New Mexico to northerly mid and upper level flow. This pattern will push a cold front into the South Plains and models in good agreement it will move into the Permian Basin with the biggest questions being its strength and timing.
In the low levels, an area of low pressure will develop across the northern Plains into upper MS Valley through Tuesday, while a trailing cool front settles southeast across those same areas.
As of 19z, upper level ridge axis continues to shift eastward into the central Plains. The eastern counties will remain in the lower 90s. Clear skies are expected overnight with low temperatures bottoming out in the lower 70s. The slight decrease in mixing will allow sfc Td's to remain in the lower 70s.
945 PM EDT Mon Jul 24 2017 A stagnant mid-level trough will keep very-humid conditions over the region today with a continued threat for showers and thunderstorms.
Meanwhile, the upper ridge to our west is already showing signs of nosing back east, well indicated by the drier air which is quickly overtaking our far NW zones this afternoon. It probably goes without saying, but this development is certain to push our daytime temperatures back into the lower to mid 90s for the remainder of this week.
748 PM EDT Mon Jul 24 2017 An upper trough, located over the Great Lakes early this morning, will push slowly across Pennsylvania early this week. In its wake, high pressure will build southeast across the region by midweek.
We anticipate a slightly warmer air mass with afternoon highs in the low to mid 90s.
Otherwise most if not all locations will remain dry through Tuesday as the upper level ridge begins to expand back over the region.
Rua The mid level weakness and shear axis will gradually dissipate over the next day, as mid level ridging and drier air begins to move in. Otherwise, mid level ridging bringing in drier air in the mid levels will be the main weather player for the remainder of the week.
Due to high moisture content in the lowest 3 kft, we may see patchy MVFR cigs develop beginning after 09z tonight. /Issued 315 PM CDT Mon Jul 24 2017/ A weak upper low over MS/LA which has nosed its way westward into Central and East Texas will gradually shift south over the next 24 hours. Farther north, the atmosphere is not only worked-over from overnight and morning convection, but also is being affected by increasing subsidence as the ridge restrengthens and the weakness in its southeast flank shifting southwestward into South TX. The break in the heat will be short lived due to the expectation that the ridge will intensify over the next several days.
559 PM MDT Mon Jul 24 2017 Water vapor imagery this afternoon seems to indicate the circulation of the upper high has now shifted into W. Moisture is surging northward on the backside of the high with PWAT doubling at KGJT overnight. Arizona begins lifting around the periphery of the upper high.
Upper level high pressure will become more centered over the region on Tuesday. (Tuesday Night through Monday) Heat will be the main concern for the work week as the upper level ridge remains over the area.
823 PM EDT Mon Jul 24 2017 An upper level trough will remain over the eastern U.
An upper ridge is forecast to begin to amplify squarely across the region (from eastern New Mexico through Oklahoma), gradually pushing the deeper layer moisture off to our west and northwest. Along with increasing temperatures, rain chances will be on the decrease under the ridge. In fact we only have PoPs in the 5-10% range Tuesday, with the highest values across the northern and northwestern zones.