Aikyam-Lab/Synoptic-Bench huggingface dataset:
1040 AM CST Mon Mar 8 2021 Dry conditions, breezy southwest winds, and warmer than normal temperatures are expected across the area today and Tuesday.
140 PM CST Mon Mar 8 2021 (Issued 140 PM CST Mon Mar 8 2021) Tonight through Tuesday: A spectacular early spring afternoon is underway across the region, with afternoon temperatures ranging from the low to mid 50s to around 60 under sunny skies. Tuesday will be warm and breezy, with temperatures reaching the low 60s.
1229 PM EST Mon Mar 8 2021 A broad area of high pressure will keep dry conditions in place well into the workweek.
A sfc reflection will track northeast over the Dakotas, with an attendant cold front pushing into the eastern CWA in the afternoon on Tuesday.
1020 AM EST Mon Mar 8 2021 High pressure will hover over the Southeast through tonight, then move off the coast mid to late week. High pressure and dry air will prevail across the region today. Additionally, some places from Berkeley to Allendale and Hampton County, plus many of our counties inland over Georgia could experience a brief period of freezing temperatures. The mid-levels will consist of a broad ridge with its axis over the MS Valley Tuesday morning.
1224 PM EST Mon Mar 8 2021 It will be warm and breezy today with highs into the lower to middle 60s this afternoon.
216 PM EST Mon Mar 8 2021 High pressure will shift offshore through the middle of the week. A cold front will approach from the north, and then pass through the area toward the end of the week. High pressure currently resides directly overhead this afternoon, with very little in the way of cloud cover. For tonight, light winds will turn more out of the south, leading to some warmer temperatures overnight tonight. This will lead to a warmer day Tuesday, with highs in the mid to upper 60s.
1030 AM MST Mon Mar 8 2021 Current surface map show weak high pressure across the Dakotas. Flat upper ridge located across the plains, with some high clouds spreading in from the west. Upper trof works into the western CONUS today, with lead impulse lifting through the northern Rockies tonight. Cold front enters northeast Wyoming/northwest South Dakota early Tuesday.
Tonight, a cold front will swing across eastern Montana, bringing with it a few inches of snow to the mountains, especially on south to west facing slopes, and a small chance for light snow across south- central Montana. For the lower elevations, no major accumulations are expected, amounts will generally be under an inch if snow even occurs in the first place. Despite the cold front passing through, low will stay similar to last night and only get down to the upper 20s.
A warm advection regime is finally ushering modest low-level moisture back into the area, while cirrus ahead of an approaching trough steadily increases this afternoon and evening. Despite fairly widespread cloud cover tomorrow, highs will still be able to warm to the low 70s for most locations in the presence of warm advection.
344 PM EST Mon Mar 8 2021 High pressure will continue over the area through the work week. A weak cold front will cross the region this weekend. High pressure will continue to be centered over the Southeast tonight with highs slowly building aloft. Mostly dry weather expected with high pressure dominating through the period.
1112 AM CST Mon Mar 8 2021 Dry conditions, breezy southwest winds, and warmer than normal temperatures are expected across the area today and Tuesday.
Left this low cloud cover out of the ELD/MLU terminals through the 24hr TAF window.
Temperatures are pushing into the low to mid 60s this afternoon. In general, the combination of prevailing light southerly wind and increasing cirrus will keep temps warmer overnight. Expect lows in the mid 30s to around 40, but with sheltered valleys in the south and east dipping into the lower 30s. A modest increase (roughly 1340/1345 today to 1345/1350 tomorrow) in 1000-850 mb thicknesses on Tuesday supports highs a few degrees warmer than today.
Low level southerly flow will remain gusty and combined with the high clouds will allow a mild night tonight with lows ranging from lower 40s to lower 50s. Wind speeds expected to remain mostly in the breezy category, but during mixing through the lower atmosphere Tuesday late morning could briefly turn slightly windier before toning down again slightly during the afternoon.
A cold front moving through the region today will keep some snow showers going overnight and tomorrow. With the daytime temperatures above freezing in most valleys, very minor accumulations are expected this afternoon. Temperature will drop down below freezing and some ice or snow is possible. About half of the available models are showing either a strong cold front or a cut-off low moving across the northern Rockies. The other scenario is much warmer and more mild. A cold front moving across the region today is causing some mid to low ceilings and snow showers. Winter Weather Advisory until 10 AM PST Tuesday ABOVE 2500 FEET for the Lower Hells Canyon/Salmon River Region.
319 PM EST Mon Mar 8 2021 High pressure will hover over the Southeast through tonight, then move off the coast mid to late week. The rest of the afternoon will be quiet and sunny with light and variable winds across the area as high pressure prevails. High pressure will be centered across the region and clear skies with calm winds are expected in the overnight period. Along with freezing temps, scattered to widespread frost is likely across most of the area, with the exceptional of just along the coast.
1201 PM EST Mon Mar 8 2021 High pressure will build today and move east tonight.
Massive high pressure will slide off the East Coast tonight and allow a warm, southwest air flow.
Mid- level ridging overhead will provide a dry west to northwest flow aloft through the period. At the surface, high pressure across the southeastern CONUS will maintain a light to moderate east to southeast winds tonight. Lows tonight should fall into the upper 50s to the lower 60s with a little less cloud cover. The pressure gradient will strengthen on Tuesday as low pressure develops across the Rockies and moves into the Plains.
A low pressure system offshore will continue to slowly move south over the next few days. Bands of moisture rotating out of the low will move through Western Washington tonight and again Tuesday afternoon maintaining a chance of showers in the forecast.
110 PM CST Mon Mar 8 2021 With high pressure continuing to move east, the result will be increasing SSW flow across the area.
With high pressure continuing to move east, the result will be increasing SSW flow across the area.
258 PM MST Mon Mar 8 2021 The weak upper trof is moving across western Colorado now with drying conditions spreading in behind it. There is some mountain top stability through 15z Tuesday but don't think there will be a huge wave refection into the lower foothills. Tuesday night will see slightly cooler lows behind the cold front, in the upper 20s and lower 30s across the plains.
631 PM EST Mon Mar 8 2021 Aviation - Freezing fog risk tonight to Tue AM - Rising rivers into the weekend - Gusty winds especially Wed night to Thu - Freezing fog risk tonight to Tue AM A weakening cold front will drop down from the northwest tonight and dissipate over the region. As winds taper off and temperatures cool down a risk for fog/freezing fog could develop. With temperatures likely to fall below freezing especially northeast parts of the CWA. we will carry a local freezing fog risk.
/Issued 232 PM EST Mon Mar 8 2021/ High pressure is currently centered along the southeast GA coast. Little movement of the high center is expected overnight, but should begin to push offshore tomorrow. The good news is that low level moisture should begin to return to the CWA as the high center moves offshore.
415 PM EST Mon Mar 8 2021 High pressure will remain over the region through much of the week, with gradually warming temperatures. High pressure will remain over the Carolinas. The combination of clear skies and calm winds will result in good radiational cooling, but with gradually rising thicknesses, lows should be a few deg warmer than last night. Lows in the lower 30s. High pressure will remain over our area, although it's center having moved offshore. Otherwise, with BL flow form the SW, look for WAA and temps several deg warmer than today.
GOES-16 WV loop currently shows a fairly potent closed low spinning off the coast of the PNW, which will become the dominating influence on the local weather for much of the upcoming week. This low will begin diving into the western CONUS over the next few days, resulting in flow aloft locally to turn more zonal by mid-week, and southwesterly moving into the weekend.
Kept the trend to favor the warmest side of guidance for highs tomorrow with ridging and southerly flow over the region.
634 PM EST Mon Mar 8 2021 High pressure will hover over the Southeast through tonight, then move off the coast mid to late week. Previous Discussion: The rest of the afternoon will be quiet and sunny with light and variable winds across the area as high pressure prevails. High pressure will be centered across the region and clear skies with calm winds are expected in the overnight period. Along with freezing temps, scattered to widespread frost is likely across most of the area, with the exceptional of just along the coast.
923 PM EST Mon Mar 8 2021 High pressure will continue over the area through the work week. A weak cold front will cross the region this weekend. High pressure will continue to be centered over the Southeast tonight with highs slowly building aloft. Mostly dry weather expected with high pressure dominating through the period.
This will lead to overnight lows being a few degrees warmer than last night. Mid-level ridging will continue to build into the region from the southwest leading to warming temperatures for Tuesday, with highs out west across the Brush Country to even approach the low 80s. Surface area of low pressure will develop across the southern High Plains which will result in breezier conditions for Tuesday, especially across the Coastal Bend, with Small Craft Exercise Caution headlines expected for the Gulf waters tonight and Tuesday. Temperatures for Tuesday night, once again, should be warmer by a few degrees, with overnight lows expected to range in the lower 60s area-wide.
Lows tonight are slightly warmer in the 50s due to the increased moisture and cloud cover. Lows tomorrow are even warmer in the upper 50s and low 60s.
249 PM MST Mon Mar 8 2021 Afternoon temperatures are currently in the 60s over the Nebraska Panhandle and 50s across southeast Wyoming as the upper level cloud cover, that has kept temperatures slightly cooler today, continues to break up. Therefore, decided to upgrade the High Wind Watch to a Warning beginning 6 PM Monday through 9 AM Tuesday. Debated about the potential for strong winds Tuesday morning along I-25 north of Wheatland, but the subsidence looks to remain pinned to the immediate downward slopes of the higher terrain. A cold front will begin to sweep over the CWA late Tuesday morning which diminish the high wind potential and begin to bring colder air into the area.
339 PM CST Mon Mar 8 2021 Tonight, upper level ridging begins to build over our area, helping to enhance the stable air in the environment. Clear sky conditions will still allow for some cooling though and as a result, low temperatures in the forecast were bumped down below the NBM guidance, but near operational and ensemble model guidance, with forecasted low temperatures in the low to mid 40s for much of the area Tuesday morning.
Issued by National Weather Service Topeka KS 356 PM CST Mon Mar 8 2021 Southwest flow remains strong over the area today with weak upper ridging ahead of a closed low spinning off the Pacific Northwest coast. Meanwhile at the surface a strengthened pressure gradient has allowed for gusty southwesterly winds to keep warm and dry conditions with temperatures in the upper 60s to low 70s and dew points in the low 30s, combining for RH in the 20-30% range. Otherwise, conditions remain mild with morning lows in the upper 40s to near 50 and highs in the low 70s.
609 PM CST Mon Mar 8 2021 Southwest flow remains strong over the area today with weak upper ridging ahead of a closed low spinning off the Pacific Northwest coast. Meanwhile at the surface a strengthened pressure gradient has allowed for gusty southwesterly winds to keep warm and dry conditions with temperatures in the upper 60s to low 70s and dew points in the low 30s, combining for RH in the 20-30% range. Otherwise, conditions remain mild with morning lows in the upper 40s to near 50 and highs in the low 70s.
433 PM MST Mon Mar 8 2021 Afternoon temperatures are currently in the 60s over the Nebraska Panhandle and 50s across southeast Wyoming as the upper level cloud cover, that has kept temperatures slightly cooler today, continues to break up. Therefore, decided to upgrade the High Wind Watch to a Warning beginning 6 PM Monday through 9 AM Tuesday. Debated about the potential for strong winds Tuesday morning along I-25 north of Wheatland, but the subsidence looks to remain pinned to the immediate downward slopes of the higher terrain. A cold front will begin to sweep over the CWA late Tuesday morning which diminish the high wind potential and begin to bring colder air into the area.
Dry conditions return tonight in the wake of the system and less clouds will result in cooler lows compared to this morning. Tomorrow the polar and sub-tropical jet will merge over the region as a strong trough moves into the Pacific Northwest. Models are generating precipitation across most of the higher elevations especially during the evening. Highs tomorrow will be cooler than today, but still above normal.
The forecast period begins with a ridge over the Central High Plains with westerly flow transitioning to southwest flow aloft through the day. Normal highs for this time of year are in the low to mid-50s. A lee trough over southeastern Colorado and southwestern Kansas with a tightening pressure gradient will result in some gusty winds this afternoon, particularly over the eastern and southeastern portions of the CWA. Tuesday, the trough shifts further to the east resulting in winds easing up over the eastern part of the CWA.
Broad high pressure will remain the primary map feature through Tuesday while expanding across Florida.
605 PM EST Mon Mar 8 2021 High pressure centered offshore will extend westward across the Carolinas for the rest of the work week, bringing above normal temperatures and dry weather. High pressure will remain over the Carolinas. The combination of clear skies and calm winds will result in good radiational cooling, but with gradually rising thicknesses, lows should be a few deg warmer than last night. Lows in the lower 30s. High pressure will remain over our area, although it's center having moved offshore. Otherwise, with BL flow form the SW, look for WAA and temps several deg warmer than today.
355 PM MST Mon Mar 8 2021 Water vapor shows large upper trof covering the western CONUS with main low off the Pac NW coast. At the surface, trof is deepening along the northern/central Rocky Mountain front, with breezy southeasterly winds across our region. For tonight, pressure gradient strengthens ahead of an approaching cold front, with 3-5mb difference across the Black Hills and winds towards the top of the boundary layer near 40kts. Cold front moves through early in the day, with good mixing both ahead of and behind the cold front resulting in some gusty northwest winds and temps rising into the 60s east/south of the Black Hills and 70s in south central SD.
High pressure will slide off the East Coast tonight and allow a warm, southwest air flow.
832 PM EST Mon Mar 8 2021 High pressure will shift offshore through the middle of the week. A cold front will approach from the north, and then pass through the area toward the end of the week. High pressure currently resides directly overhead this evening, with very little in the way of cloud cover. For overnight, light winds will turn more out of the south, leading to some warmer temperatures overnight tonight. This will lead to a warmer day Tuesday, with highs in the mid to upper 60s.
It'll end up a little warmer tomorrow morning than the last few, but everyone will still be in the 30s. Expect more of the same tomorrow, with temperatures slightly warmer and puh-lenty of sunshine.
A cooler and more active weather pattern is expected tomorrow through the end of the week as a mean longwave trough moves inland.
Tuesday should be breezy/windy and quite warm again with highs in the lower and mid 70s. Highest chances expected near the low level convergence zone associated with the cold front pushing into the area.
559 PM EST Mon Mar 8 2021 High pressure will continue over the area through the work week. A weak cold front will cross the region this weekend. High pressure will continue to be centered over the Southeast tonight with highs slowly building aloft. Mostly dry weather expected with high pressure dominating through the period.
1132 PM EST Mon Mar 8 2021 Aviation - Freezing fog risk tonight to Tue AM - Rising rivers into the weekend - Gusty winds especially Wed night to Thu I believe there is still the threat of some patchy fog, mostly north of I-96 but I do not believe widespread dense fog is likely. - Freezing fog risk tonight to Tue AM A weakening cold front will drop down from the northwest tonight and dissipate over the region. As winds taper off and temperatures cool down a risk for fog/freezing fog could develop. With temperatures likely to fall below freezing especially northeast parts of the CWA. we will carry a local freezing fog risk.
High temperatures today are expected to range from the low to mid 70s for most locations except slightly cooler along the immediate coast. For tonight, lows will be slightly warmer than the past couple of nights, generally ranging from the low to mid 40s, except near 50 along the coast.
The weak upper trof is moving across western Colorado now with drying conditions spreading in behind it. There is some mountain top stability through 15z Tuesday but don't think there will be a huge wave refection into the lower foothills. Tuesday night will see slightly cooler lows behind the cold front, in the upper 20s and lower 30s across the plains.
The upper level ridge axis will move overhead during this timeframe.
1006 PM EST Mon Mar 8 2021 Update - Freezing fog risk tonight to Tue AM - Rising rivers into the weekend - Gusty winds especially Wed night to Thu I believe there is still the threat of some patchy fog, mostly north of I-96 but I do not believe widespread dense fog is likely. - Freezing fog risk tonight to Tue AM A weakening cold front will drop down from the northwest tonight and dissipate over the region. As winds taper off and temperatures cool down a risk for fog/freezing fog could develop. With temperatures likely to fall below freezing especially northeast parts of the CWA. we will carry a local freezing fog risk.
Latest 08z surface analysis shows ridge over southern Michigan and latest metars show winds becoming southerly. Southerly winds aloft will allow warmer air to filter into the region and high temperatures are expected to rise into the middle 50s to middle 60s.
High pressure will remain over the Southeastern United States tonight keeping an breezy to windy northeast wind flow over South Florida. The High Surf Advisory has been cancelled for the beaches of Palm Beach County, as the northeast swell has subsided a little bit allowing for the breakers to fall below 7 feet for tonight. Models show a weak surface/coastal trough axis developing overnight across the Gulf Stream. On Tuesday the trough moves downstream (southward to Cuba) leaving our region with a dry northerly upper level flow. A mid to upper level anticyclone will center over the Gulf of Mexico as meridionally elongated low-level ridging prevails from the South Atlantic States into the eastern Atlantic.
106 AM MST Tue Mar 9 2021 The cold front is moving through southeastern Montana, bringing with it a few inches of snow to the mountains and a dusting to lower elevations. The lower elevations could see a dusting of snow overnight but nothing significant. The lower elevations will dry out during the afternoon today. The lower elevations in Sheridan County could see 1 to 2 inches of snow with the Big Horns seeing 3 to 6 inches but trends have slowly been shifting this system south which could continue.
322 AM EST Tue Mar 9 2021 Pattern remains largely unchanged with upper ridging, and a SW sfc gradient in between strong high pressure over the SE CONUS and deepening low pressure over the Dakotas. Warm advection is weaker but persistent, supporting max temps a couple degrees warmer than Monday, even in the face of fairly extensive cirrus.
After the cold frontal passage today, which brought several lightning strikes to the Owyhees and near Burns, we are seeing a few showers still moving northeast across parts of the area.
This was dragging a cold front across western and central zones this evening, with areas of light precipitation developing behind the frontal passage. Tonight, a cold front will swing across eastern Montana, bringing with it a few inches of snow to the mountains, especially on south to west facing slopes, and a small chance for light snow across south- central Montana. For the lower elevations, no major accumulations are expected, amounts will generally be under an inch if snow even occurs in the first place. Despite the cold front passing through, low will stay similar to last night and only get down to the upper 20s.
Wl have to watch out for possible low clouds developing in vicinity of strengthening warm front across eastern IA into northern IL as low level convergence increases but low level rh does remain marginal. As warm front passes on Tuesday, the southeast winds should become southerly resulting in another mild day with at least partial sunshine.
949 PM MST Mon Mar 8 2021 Water vapor shows large upper trof covering the western CONUS with main low off the Pac NW coast. At the surface, trof is deepening along the northern/central Rocky Mountain front, with breezy southeasterly winds across our region. For tonight, pressure gradient strengthens ahead of an approaching cold front, with 3-5mb difference across the Black Hills and winds towards the top of the boundary layer near 40kts. Cold front moves through early in the day, with good mixing both ahead of and behind the cold front resulting in some gusty northwest winds and temps rising into the 60s east/south of the Black Hills and 70s in south central SD.
1217 AM EST Tue Mar 9 2021 High pressure will continue over the area through the work week. A weak cold front will cross the region this weekend. High pressure will continue to be centered over the Southeast tonight with highs slowly building aloft. Mostly dry weather expected with high pressure dominating through the period.
1030 PM MST Mon Mar 8 2021 Afternoon temperatures are currently in the 60s over the Nebraska Panhandle and 50s across southeast Wyoming as the upper level cloud cover, that has kept temperatures slightly cooler today, continues to break up. Therefore, decided to upgrade the High Wind Watch to a Warning beginning 6 PM Monday through 9 AM Tuesday. Debated about the potential for strong winds Tuesday morning along I-25 north of Wheatland, but the subsidence looks to remain pinned to the immediate downward slopes of the higher terrain. A cold front will begin to sweep over the CWA late Tuesday morning which diminish the high wind potential and begin to bring colder air into the area.
VFR will continue to prevail the next 24 hours as high pressure remains in control. Garuckas Chattanooga Airport, TN 70 42 68 50 67 / 0 0 0 0 0 Knoxville McGhee Tyson Airport, TN 68 38 68 48 66 / 0 0 0 0 0 Oak Ridge, TN 68 39 66 47 66 / 0 0 0 0 0 Tri Cities Airport, TN 66 36 66 43 65 / 0 0 0 0 0.