Aikyam-Lab/Synoptic-Bench huggingface dataset:
A cold front will bring another round of snow to parts of north- central and central Montana tonight into Tuesday. Colder temperatures can be expected through mid-week for much of the region behind the cold front. The surface cold front has made quite a bit of southward progress this evening and is now moving through Central Montana but is still expected to stall out just shy of the southwest. Then a cold front advancing southward will introduce additional light snow, low clouds, and some fog to the central/north-central terminals from north to south as the night progresses This activity may continue through 18Z Tuesday, and perhaps to 00Z Wednesday for KLWT. Weak convective snow showers continue to develop over much of the region this afternoon, as the cold front tracks through the area and colder air move in aloft today.
/issued 204 PM CST Mon Feb 17 2020/ As of 1930Z, our latest cold front had made it roughly through half of the Lubbock Forecast Area, just beginning to enter Lubbock County. This initial wind shift is pretty shallow, as seen on soundings, but a deeper push of cold air will arrive early tomorrow morning, keeping highs much cooler tomorrow.
Amounts were light, but saw some flash freezing making driving difficult this evening. There is a small threat of seeder-feeder based on model soundings, which could favor the potential for freezing drizzle if it occurs.
This has allowed temperatures to warm a couple degrees warmer than expected this afternoon. The warm front south of the area will push east this evening ending rain chances across the southern counties this evening. Tuesday and Wednesday will remain under high pressure with cooler temperatures.
111 AM EST Tue Feb 18 2020 A low pressure system will approach the region tonight and a cold front will move through the area on Tuesday. High pressure will then build back into the region for Wednesday and the rest of the week. Cold front will be located from northwest Ohio back through central Kentucky at the beginning of the period. Another strong high pressure system will begin to build in Tuesday night. On Wednesday morning, a cold front will be moving well east of the region, exiting the mid-Atlantic coast.
Cloud cover may keep temps semi-warmer, esp the western 2/3 where stratus is expected to linger. A cold front will move from north to south Tuesday bringing MVFR/IFR CIGS along with areas MVFR VSBYS due to light snow.
1128 PM CST Mon Feb 17 2020 Damp and foggy conditions will persist across central Illinois through this evening before a cold front passes and brings breezy and cooler weather late tonight into Tuesday. Visibility should begin to improve with passage of a trailing cold front late this evening and overnight. 1009mb low analyzed over western Iowa will track into the Great Lakes tonight, dragging a cold front through central Illinois after midnight.
1243 AM EST Tue Feb 18 2020 Rain, possibly mixed with snow north of I-80, will return this morning and Tuesday with a crossing cold front. Mainly dry weather is expected to return Wednesday through the rest of the week under high pressure. Some lingering upslope rain snow may continue across the ridges into tomorrow evening, but even this is expected to be short-lived as a large high pressure system quickly fills in from the west.
817 PM PST Mon Feb 17 2020 Our fair and pleasant weather will persist this week under a weak high pressure ridge.
1011 PM EST Mon Feb 17 2020 Currently - A pressure ridge extending across Florida and the Gulf of Mexico this evening is producing gentle to moderate winds across the forecast area. Winds are east to southeast and a bit stronger over the straits, and backed northeast to east over the cooler gulf and bay side waters. This along with dominant background ridging is responsible for no shower activity across the area since earlier this afternoon. Dew points are in the lower 70s. Short Term Update - Ridging will continue to dominate Keys weather through the overnight period. Ridging to our north will maintain moderate to fresh east to southeast breezes across the Florida Straits, transitioning to weaker and northeast to east over our cooler gulf and bay side waters.
A cold front will bring another round of snow to parts of north- central and central Montana tonight into Tuesday. Colder temperatures can be expected through mid-week for much of the region behind the cold front. The surface cold front has made quite a bit of southward progress this evening and is now moving through Central Montana but is still expected to stall out just shy of the southwest. Then a cold front advancing southward will introduce additional light snow, low clouds, and some fog to the Central/North- central terminals from north to south as the night progresses (these condtions are already ongoing at KHVR and KCTB. Weak convective snow showers continue to develop over much of the region this afternoon, as the cold front tracks through the area and colder air move in aloft today.
256 AM EST Tue Feb 18 2020 Rain, possibly briefly mixed with snow north of I-80, is expected today with a crossing cold front. Mainly dry weather will return Wednesday through the weekend under high pressure. A second surge of rain with better coverage over southern portions of the area is expected late morning into this afternoon in advance of the cold front. 5" continue to look possible along the I-80 corridor and in the ridges. Rain should quickly clear from west to east this afternoon/evening as high pressure builds in behind the exiting front. Lingering upslope rain/snow may continue across the ridges through the first part of tonight.
ahead of a secondary cold front located outside of the CWA from Northwest Oklahoma to Southeast Kansas. Some areas of fog had also developed along/near the Kansas border just ahead of the second cold front with visibility below 1 mile for some locations. Behind the second cold front was a colder/drier airmass being transported by gusty northerly winds. the second cold front is expected to push into the CWA with the cooler/drier airmass filtering to the region with the gusty northerly winds. temps overnight look to fall into the mid/upper 30s along the Kansas border to the low 50s near the Red River. have added minor adjustments to pop/wx grids to account for the current coverage of showers/fog potential and also temp grids for the timing of the cold front.
Flight categories will descend into IFR territory for all terminals today as a cold front approaches. CD Chattanooga Airport, TN 63 45 53 39 44 / 80 80 30 20 50 Knoxville McGhee Tyson Airport, TN 61 43 51 36 44 / 90 80 20 10 30 Oak Ridge, TN 60 42 51 35 44 / 90 70 20 10 20 Tri Cities Airport, TN 59 40 48 32 42 / 90 80 20 10 10.
1201 AM CST Tue Feb 18 2020 Cold front will continue to move through Arkansas through the period with scattered showers and isolated thunderstorms possible along the boundary.
1050 PM CST Mon Feb 17 2020 06Z TAF issuance VFR to prevail through the early morning as a cold front moves through the area.
312 AM EST Tue Feb 18 2020 Surface ridging over the Atlantic will continue to stretch across the Florida Peninsula today and Wednesday, setting up light southerly and easterly low level flow.
High pressure was over the pacnw and will continue to bring dry conditions tonight. After that high pressure will build into the region aloft with a cool northerly flow aloft.
Clouds will then gradually diminish from west to east through the day, with temperatures holding steady in the lower to middle 30s.
SW flow has brought ample GoM moisture to the Ohio Valley resulting in a ridge of high PW values (1. With this moisture in place, isentropic lift ahead of the cold front will produce light rain across the region and continue throughout most of the day before the front exits to our east later this afternoon/evening. 50" with the higher accumulations in the Lake Cumberland area of our SW CWA. Thick cloud cover will limit heating resulting in afternoon highs in the low to mid 50s. Modified polar air will advect in behind the front bringing Wednesday morning min temps down to the mid 20s across southern Indiana and into the low 30s across central KY.
301 AM CST Tue Feb 18 2020 A cold front will move east through the forecast area early today. However, much cooler (initially), then quite cold conditions will take over for the remainder of the short term as a 1040+ mb Canadian high pressure system plows southeast toward the Ohio River Valley.
555 AM CST Tue Feb 18 2020 Ceilings and vsby cont to jump around a bit w/ ceilings varying from vv002 through ovc007 and vsby fm 1sm through P6SM this will continue through the mrng hours ahead of a cold front that is projected through early this eve. A slow, southward advancing cold front will induce scattered to numerous showers across parts of central Louisiana and the piney woods region of southeast Texas beginning late this morning with the precipitation gradually working its way south through the evening and overnight hours as the front advances to near the coast before stalling.
As a wave of energy digs south out of Canada this morning, showers have begun to re-intensify along the Continental Divide and in the higher terrain of central Idaho. High pressure will build over the region beginning Wednesday and last in to the weekend.
Therefore, the remainder of the day will be quiet but cooler. Weak lift associated with the polar jet may be enough to generate scattered snow showers over the higher terrain north and east of Pagosa Springs.
Cold frontal passage still expected northwest to southeast across mid state region today, but expected to move a little slower than depicted this time yesterday, thus overall a better chance for accumulating rainfall across mid state region through tonight. Lows tonight will range from lower mid 30s northwest to around 40 south as cold air advection continues to build in behind cold frontal passage and becomes more established across mid state region. Cooler temperatures at or just slightly below seasonal normals will be in place Wednesday as building strong high pressure influences from a southern Canadian high pressure system begin to be felt across area. This strong surface ridging influence will move southeastward into the Carolinas as upcoming weekend progresses.
734 AM EST Tue Feb 18 2020 According to satellite and surface observations, fog and low clouds continue to impact Pasco northward with a stretch of fog also along the Lake Wales ridge. /issued 312 AM EST Tue Feb 18 2020/ Surface ridging over the Atlantic will continue to stretch across the Florida Peninsula today and Wednesday, setting up light southerly and easterly low level flow.
This should result in lows that are a bit warmer in the west and cooler in the east.
Further to the northwest, a shallow slow moving cold front was draped across AR. Not expecting much more than a few showers below the capping inversion early this morning, but that will change as the cold front enters northwest portions by late morning.
Right now, cross sections show temps in the moist layer at or below -10C overnight, so we don't see much threat of freezing drizzle until perhaps Wednesday morning when the moist column warms slightly. Tomorrow's weather disturbance will be downstream from a sharp and compact trough located over Wyoming. This setup may produce some light freezing drizzle, but the probability looks low, since we will be located further from the jet level forcing. This period of light snow will dissipate overnight as the upper trough shears out and an upper level ridge moves in from the west. The remainder of the week will feature drier and milder conditions as a high pressure ridge remains in place over the Four Corners region.
Near or shortly after sunrise the surface cold front is expected to be in the vicinity of the Memphis metro. Highs this afternoon will range from the low 50s northeast to upper 60s across the southeast portion of the CWA. Overnight lows will range from the low 30s to mid 40s.
Upslope northeast winds will enhance snowfall along the Cheyenne Ridge from Kimball east through Sidney, where 1 to 2.
Looking at lows in the teens below zero through the Highway 14 corridor into southwestern MN, to single digits above along the MO River Valley.
/issued 424 AM CST Tue Feb 18 2020/ (Today and Tonight) Early this morning, the cold front was located near a Brady to Sonora line.
For tonight and Wednesday, even with this low dropping south, the potential for stratus and/or fog is there across portions of the Snake Plain, valleys in the eastern/southeast highlands and the Stanley Basin.
424 AM CST Tue Feb 18 2020 (Today and Tonight) Early this morning, the cold front was located near a Brady to Sonora line.
356 AM CST Tue Feb 18 2020 Colder temperatures are expected today in the wake of a surface cold front that moved through the area yesterday afternoon. Pressure rises have been occurring through the overnight hours as a ridge builds southward. Cloud cover is expected to clear into the afternoon but temperatures should only reach the low 40s today with north winds and a cooler airmass in place. Lows tonight will dip into the low and mid 20s. On Wednesday, models show an upper trough moving over the Northern Plains with a batch of snow developing over Nebraska ahead of the feature.
(Today and tonight) Cooler afternoon temperatures are expected today behind the cold front now moving into SE OK.
Near the surface, high pressure extends from the Northern Plains southward into the high plains of western Kansas.
410 AM CST Tue Feb 18 2020 As of 1am the cold front has pushed south of the FA with temperatures on average 10-15 degrees cooler than 24 hours ago across our southern two rows of counties. Temperatures will gradually only drop into the low 30s/40s this morning as the second area of surface CAA remains across northern OK/southern KS per theta- e analysis.
945 AM EST Tue Feb 18 2020 A cold front will move through the region today bringing cooler weather for the middle of the week. Late in the week high pressure will shift east of the region and there will be a warming trend into the weekend.
Stable high pressure aloft will expand east across the Great Basin during the latter half of the week.
By 6 AM this morning there will also be a 500 mb jet ramping up from southeast Colorado up through the northern Illinois along the leading edge of the 500 mb trough. Daytime highs today will be in the low to mid 40s. The highest speeds being in the far northwest FA.
542 AM CST Tue Feb 18 2020 The cold front is through most of the CWA as of early this morning. Today will certainly be cooler than yesterday as temperatures only climb into the low to mid 40s.
High pressure will be in control through much of the week, maintaining dry conditions and periods of sunshine. The ridge breaks down late in the week, with a return of precipitation chances by the end of the week and through the weekend.
348 AM CST Tue Feb 18 2020 Breezy and cooler conditions will develop today behind a cold front that moved through overnight. Below normal temperatures and dry conditions can be expected the next few days as high pressure builds into the area. a cold front had pressed southeastward to around the I-70 corridor in southeast IL with dry and breezy conditions in cold advection behind the front.
The cold front is through most of the CWA as of early this morning. Today will certainly be cooler than yesterday as temperatures only climb into the low to mid 40s.
Fortunately the low-levels are very dry so much of, if not all of, the radar returns are not hitting the ground. Broad ascent ahead of these waves coupled with a frontogenetic circulation from 700mb to 600mb will result in an area of snow in the High Plains that may expand eastward through eastern Kansas and west central Missouri.
312 AM CST Tue Feb 18 2020 The cold front is through most of the CWA as of early this morning. Today will certainly be cooler than yesterday as temperatures only climb into the low to mid 40s.
Colder air will spill into the region tonight as Canadian high pressure settles over the Dakotas.
652 AM EST Tue Feb 18 2020 Rain, possibly briefly mixed with snow north of I-80, is expected today with a crossing cold front. Mainly dry weather will return Wednesday through the weekend under high pressure. A second surge of rain with better coverage over southern portions of the area is expected late morning into this afternoon in advance of the cold front. 5" continue to look possible along the I-80 corridor and in the ridges. Rain should quickly clear from west to east this afternoon/evening as high pressure builds in behind the exiting front. Lingering upslope rain/snow may continue across the ridges through the first part of tonight.
By this evening, a cold front (currently just moving in to North Texas) will move into the region. Much cooler temperatures can be expected for most of the region with highs in the 50s. In the southeast though, some models indicate warmer temps. Will continue to trend closer to the NAM as it usually has a better handle on temps behind cold fronts.
At 3 am, the cold front was roughly along a line from Sonora to San Saba. With near widespread rains expected Wednesday, highs will probably be only 5 to 8 degrees warmer than the morning lows.
355 AM CST Tue Feb 18 2020 The much advertised cold front continues to push through the region early this morning, and is currently nearing the Pecos River. Cold advection in the wake of the front along with increasing cloud cover will yield much cooler temperatures, especially along/north of I-10, where highs in the upper 40s and 50s will be nearly 30 degrees cooler than yesterday. Strong northeasterly gap winds are also expected through Guadalupe Pass beginning late this afternoon and continuing through Wednesday morning, so the High Wind Watch for the Guadalupe and Delaware Mountains has been upgraded to a High Wind Warning.
342 AM CST Tue Feb 18 2020 Sfc cold front currently extends from extreme SE OK through western AR with isolated storms ongoing east of the boundary. Further north a corridor of very light precipitation is ongoing across S KS / N OK preceding the mid level trough axis. Temperatures will be notably cooler than recent days.
A slow, southward advancing cold front will induce scattered to numerous showers across parts of central Louisiana and the piney woods region of southeast Texas beginning late this morning with the precipitation gradually working its way south through the evening and overnight hours as the front advances to near the coast before stalling.
/Issued 342 AM CST Tue Feb 18 2020/ Sfc cold front currently extends from extreme SE OK through western AR with isolated storms ongoing east of the boundary. Further north a corridor of very light precipitation is ongoing across S KS / N OK preceding the mid level trough axis. Temperatures will be notably cooler than recent days.
528 AM CST Tue Feb 18 2020 (Today and tonight) Cooler afternoon temperatures are expected today behind the cold front now moving into SE OK.
Colder temperatures are expected today in the wake of a surface cold front that moved through the area yesterday afternoon. Pressure rises have been occurring through the overnight hours as a ridge builds southward. Cloud cover is expected to clear into the afternoon but temperatures should only reach the low 40s today with north winds and a cooler airmass in place. Lows tonight will dip into the low and mid 20s. On Wednesday, models show an upper trough moving over the Northern Plains with a batch of snow developing over Nebraska ahead of the feature.
439 AM EST Tue Feb 18 2020 A cold front will move through the region today bringing cooler weather for the middle of the week. Late in the week high pressure will shift east of the region and there will be a warming trend into the weekend. Temperatures have climbed into the 40s and 50s in advance of a cold front. Temperatures will drop through the day after the passage of the cold front.
MVFR ceilings will dominate the area through the afternoon ahead of an approaching cold front. Showers and thunderstorms will increase from the northwest along and behind the cold front. Further to the northwest, a shallow slow moving cold front was draped across AR. Not expecting much more than a few showers below the capping inversion early this morning, but that will change as the cold front enters northwest portions by late morning.
Looking at lows in the teens below zero through the Highway 14 corridor into southwestern MN, to single digits above along the MO River Valley. Then, VFR conditions are expected at all sites before a cold front brings occasional MVFR conditions through the day on Tuesday.
651 AM EST Tue Feb 18 2020 A cold front will move through the region today bringing cooler weather for the middle of the week. Late in the week high pressure will shift east of the region and there will be a warming trend into the weekend. Temperatures have climbed into the 40s and 50s in advance of a cold front. Temperatures will drop through the day after the passage of the cold front.
Areas from Treasure County eastward will remain in the lower to middle teens today while Livingston and the foothills look to be in the upper 20s. Forecasted high for Billings remains tricky but looks to remain in the lower 20s, occurring this morning as temperatures slowly fall during the day.
However, a tight pressure gradient on the back side of the low will persist resulting in breezy conditions this morning and continuing into the afternoon.
A cold front will move east through the forecast area early today. However, much cooler (initially), then quite cold conditions will take over for the remainder of the short term as a 1040+ mb Canadian high pressure system plows southeast toward the Ohio River Valley.
533 AM CST Tue Feb 18 2020 Breezy and cooler conditions will develop today behind a cold front that moved through overnight. Below normal temperatures and dry conditions can be expected the next few days as high pressure builds into the area. a cold front had pressed southeastward to around the I-70 corridor in southeast IL with dry and breezy conditions in cold advection behind the front.
/issued 410 AM CST Tue Feb 18 2020/ As of 1am the cold front has pushed south of the FA with temperatures on average 10-15 degrees cooler than 24 hours ago across our southern two rows of counties. Temperatures will gradually only drop into the low 30s/40s this morning as the second area of surface CAA remains across northern OK/southern KS per theta- e analysis.
/issued 312 AM EST Tue Feb 18 2020/ Surface ridging over the Atlantic will continue to stretch across the Florida Peninsula today and Wednesday, setting up light southerly and easterly low level flow.
High pressure will be spending the next 36 hours building into and then slipping south of this CWA.
Prevailing deep swly flow continues to promote moisture advection into the region this morning as a series of weak surface waves lift northeast along/ahead of a cold front across the Midsouth into middle TN. Pops will slowly decrease from the west tonight as drier high pressure advects in. A mixture of MVFR/IFR expected early in the taf cycle as moisture continues to stream into the region ahead of an approaching cold front, which will also favor visb restrictions and precipitation. CDG Chattanooga Airport, TN 44 54 39 45 28 / 80 20 20 50 10 Knoxville McGhee Tyson Airport, TN 43 51 36 43 25 / 80 20 10 40 20 Oak Ridge, TN 40 52 36 43 25 / 80 10 10 30 20 Tri Cities Airport, TN 39 48 33 41 22 / 80 10 0 30 20.
305 PM EST Tue Feb 18 2020 Low pressure will pass well to the north of the state today. The cold front associated with this storm will push across Central PA late today.
1136 AM CST Tue Feb 18 2020 Breezy and cooler conditions will develop today behind a cold front that moved through overnight. Below normal temperatures and dry conditions can be expected the next few days as high pressure builds into the area. a cold front had pressed southeastward to around the I-70 corridor in southeast IL with dry and breezy conditions in cold advection behind the front.