Aikyam-Lab/Synoptic-Bench huggingface dataset:
In the upper level, sub-tropical jet will allow some moisture to stream in from the southwest and we will likely see the upper level moistening up before the lower levels can fully saturate. The cold front will approach from the north Monday morning pushing through the forecast area through the day.
237 PM EDT Sun Mar 8 2020 High pressure/dry weather through Monday.
230 PM CDT Sun Mar 8 2020 Deeper moisture transport will ramp up through the evening and overnight especially across south central and southeast Kansas in concert with the lift ahead of the approaching upper trof moving across the Southwest CONUS into the central/southern Rockies. The rather progressive upper trof will move eastward across the area on Monday. While the bulk of precip/coverage will move east of the area by mid-morning, expect some scattered/post-frontal showers across central Kansas until early afternoon, then potential for a few showers/storms along the cold front in far southeast Kansas in the mid to late afternoon.
A large and broad upper ridge over the eastern half of the CONUS shifts eastward mainly into the western Atlantic through Monday. As the broad upper ridge shifts mainly into the western Atlantic, subsidence abates over the region allowing for precipitable water values currently near 0. Lows tonight range from the mid 40s inland to the lower 50s closer to the coast, then highs on Monday will be 70 to 75.
319 PM CDT Sun Mar 8 2020 Shorter term concern remain timing of cold front overnight and chances for light rain Monday. Cold front progged to move into far western MN by evening and spread east toward MSP by 06z or so. Temperatures will struggle to rebound bake to the lower 40s after 12z Monday to the east with 30s common to the northwest with brisk northwest winds. We expect clearing to take hold into Monday night as high pressure ridge builds east with lighter winds.
245 PM EDT Sun Mar 8 2020 High pressure centered over the region will slip offshore Monday.
252 PM MDT Sun Mar 8 2020 Scattered showers and an isolated thunderstorm or two continue mid this afternoon as a midlevel trough approaches from the west. Increased clouds and showers have allowed temperatures to run 5 to 10 degrees cooler than yesterday with many locations having hit their high for the day earlier this afternoon. Daytime highs on Monday will be comparable to today's, albeit slightly cooler. 700mb temperatures will drop by several degrees in the wake of the trough, allowing snow levels to drop by 1500 to 2000 feet or so. However, impacts and accumulations will be minimal with only a few inches expected in the higher elevations.
The frontal boundary that has been lying over portions of the FA has now pushed into the far southern Red River Valley, close to the Wahpeton-Breckenridge area as of 230 PM CDT. Clouds will likely hold tough all night from Park Rapids to Fergus Falls, so it will be warmer there. Even though highs will be cooler than the past few days, less wind should also feel good too. Areas with less cloud cover will be cooler than those with clouds. The low clouds and fog have now developed along the frontal boundary, when they had not most of last night.
1241 PM CDT Sun Mar 8 2020 An impressive upper level ridge will linger over the area for one more day, keeping temperatures 20 to 25 degrees above normal.
253 PM MDT Sun Mar 8 2020 The surface cold front had moved off to the southeast of the forecast area early this afternoon followed by gusty northwest winds and falling temperatures. Dry weather and cooler temperatures are expected on Monday with high temperatures mainly in the mid-40s to lower 50s.
Another weak mid to upper level disturbance will glide over top the ridge to our south Monday into Monday night. Low temps tonight and tomorrow night will be about 10 degrees warmer than normal for early March with temps in the low to mid 60s.
111 PM EDT Sun Mar 8 2020 Mainly clear skies will persist through tonight with increasing mid to upper level clouds expected on Monday as low pressure approaches from the west. * None The large scale pattern is dominated by deep ridging over much of eastern North America this morning.
341 PM CDT Sun Mar 8 2020 Timing for the short wave and surface cold front appears on track, with the front moving through central South Dakota in the afternoon hours and passing by Huron at 3 PM. The cold air and breezy winds will create wind chill values dipping down into the mid-teens to lower 20s before sunrise, which will be an unwelcome change for most with temperatures near freezing. Any measurable precipitation is most likely going to be rain, with a slight chance of some freezing rain if cold air makes it south quicker than expected towards sunrise.
High pressure will bring a drying trend to much of the area early in the work week. An upper level low will gradually cut off from the mean flow across the far eastern Pacific today. This upper level low will gradually settle near the southern California coast through much of the week. Meanwhile a more progressive, northern portion of this trough will quickly move through the Interior West early this week. combined with several weak ejecting waves in deep southwest flow ahead of the previously mentioned upper level low will bring a threat of precipitation to mainly far northern Utah Monday.
240 PM EDT Sun Mar 8 2020 High pressure centered over the region will slip offshore Monday.
The cloudy skies and southerly winds will help keep temperatures a bit warmer tonight compared to last night with low temperatures dipping into the low 60s across most of the area. Despite the clouds, temperatures tomorrow will climb into the low to mid 70s across the area. Then lows tomorrow night will be very similar to tonight, albeit a few degrees warmer.
Weak cold front brings northwest surface wind shift to northern terminals around 11z, and to AMA around 14z. Weak cold front expected overnight into early Monday.
Rain showers will overspread the area from west to east during the latter half of Monday night as a cold front approaches from the Midwest.
1102 AM EDT Sun Mar 8 2020 A thick and nearly overcast deck of strato-cumulus clouds has invaded the Upper and Middle Keys thanks to a long upwind trajectory of cool northeast winds crossing warmer Atlantic waters. A strong 1038 mb continental high pressure cell is centered over the Piedmont of North Carolina this morning. Guidance shows the strongest winds occurring this afternoon and evening as high pressure emerges over the Atlantic. 2", and surface dewpoints will have reached the low-mid 60s. Strong continental high pressure centered over North Carolina this morning will move east into the Atlantic this afternoon, reaching near Bermuda on Monday evening.
Easterly flow will remain in place, but with moisture increasing slowly from the east tonight and tomorrow expect warmer low temperatures tonight in the mid to upper 40s. Warmer conditions expected tomorrow with highs climbing into the low to mid 70s.
123 PM EDT Sun Mar 8 2020 High pressure over the Carolinas will move offshore tonight. Southerly winds will bring warmer temperatures beginning Monday.
Upper air data indicated broad ridging over the Midwest this afternoon. Rain chances diminish from the west 06-12z Tue with the passage of the cold front and drying low/mid level west/northwest flow.
309 PM CDT Sun Mar 8 2020 Cold front continues to move across the CWA and has just recently moved through Aberdeen.
The highest rainfall amounts will be across the Big Country, with 1/4 to 1/2 of an inch. Expect warmer temperatures Monday, with highs 75 to 80.
1138 AM EDT Sun Mar 8 2020 A large bubble of high pressure centered over the Carolinas will keep our weather fair and increasingly warm for today and Monday.
639 PM CDT Sun Mar 8 2020 The main concern in the short term is with precipitation chances and winds along the cold front.
On Wed, a flat upper level ridge will develop over the area. Looking ahead to Thu night and Fri, an upper level low over the swrn US, will move northeast. In addition, a stronger cold front will move into the area Thu night, with the low level flow becoming southeasterly on Fri.
626 PM EDT Sun Mar 8 2020 High pressure will shift offshore into the middle of this week.
916 PM EDT Sun Mar 8 2020 Coastal trough stretching from central Florida northward to the coast of South Carolina will shift to the north and dissipate on Monday as high pressure along the coast of the Carolinas shifts east. The increase in low level moisture and surface convergence over the Atlantic waters will result in isolated showers over the coastal waters this evening with warmer low temperatures overnight.
810 PM EDT Sun Mar 8 2020 High pressure centered over the region will slip offshore Monday.
Short Term Update - Fresh to strong easterly breezes will continue overnight as the high pressure system remains strong and elongates out into the Atlantic.
Upper ridging has flattened a bit although heights are rising.
High pressure will bring a drying trend to much of the area early in the work week.
Thus, once the low MVFR cigs set in, areas of -RA will help maintain these cigs through much of the day, with some vsby reductions possible as well, mainly along/N of the I-20 corridor of E TX/N LA.
634 PM CDT Sun Mar 8 2020 Deeper moisture transport will ramp up through the evening and overnight especially across south central and southeast Kansas in concert with the lift ahead of the approaching upper trof moving across the Southwest CONUS into the central/southern Rockies. The rather progressive upper trof will move eastward across the area on Monday. While the bulk of precip/coverage will move east of the area by mid-morning, expect some scattered/post-frontal showers across central Kansas until early afternoon, then potential for a few showers/storms along the cold front in far southeast Kansas in the mid to late afternoon.
726 PM CDT Sun Mar 8 2020 Shorter term concern remain timing of cold front overnight and chances for light rain Monday. Cold front progged to move into far western MN by evening and spread east toward MSP by 06z or so. Temperatures will struggle to rebound bake to the lower 40s after 12z Monday to the east with 30s common to the northwest with brisk northwest winds. We expect clearing to take hold into Monday night as high pressure ridge builds east with lighter winds.
Min temps will cool into the low to mid 50s across the north interior and Okeechobee county. Milder closer to the coast due to persistent onshore flow so raised min temps a couple degrees into the low and mid 60s south of the Cape. High pressure offshore from the Carolinas will continue the persistent onshore flow that will veer from the east to east-southeast.
736 PM EDT Sun Mar 8 2020 High pressure/dry weather through Monday.
Meanwhile, a trough axis over the PacNW will track southeastward throughout Monday, shunting the showers out of the area by Monday night.
VFR will prevail through the TAF period with variable winds of 3-8 kts as high pressure maintains control of the southern Appalachians.
High pressure to the east will continue to produces persistent southerly winds off the Gulf over the next 24 hours.
/issued 230 PM CDT Sun Mar 8 2020/ Upper ridging is over the eastern half of the country with southwest flow over West Texas and southeast New Mexico. Temperatures today will be cooler than yesterday with the increase in cloud cover and moisture.
LLWS is likely to develop during the evening hours as surface wind gusts decrease and the low-level jet increases.
528 PM MDT Sun Mar 8 2020 Scattered showers and an isolated thunderstorm or two continue mid this afternoon as a midlevel trough approaches from the west. Increased clouds and showers have allowed temperatures to run 5 to 10 degrees cooler than yesterday with many locations having hit their high for the day earlier this afternoon. Daytime highs on Monday will be comparable to today's, albeit slightly cooler. 700mb temperatures will drop by several degrees in the wake of the trough, allowing snow levels to drop by 1500 to 2000 feet or so. However, impacts and accumulations will be minimal with only a few inches expected in the higher elevations.
/28/ Tonight through Monday: As strong high pressure gradually shifts east, the dry airmass will slowly moisten overnight, but expect a much more dramatic moisture increase during the day Monday with precipitable water values rising to near 1.
1046 PM EDT Sun Mar 8 2020 High pressure/dry weather through Monday.
919 PM EDT Sun Mar 8 2020 High pressure will shift offshore into the middle of this week.
Cold front continues to move across the CWA and has just recently moved through Aberdeen.
519 PM MDT Sun Mar 8 2020 The surface cold front had moved off to the southeast of the forecast area early this afternoon followed by gusty northwest winds and falling temperatures. Dry weather and cooler temperatures are expected on Monday with high temperatures mainly in the mid-40s to lower 50s.
640 PM CDT Sun Mar 8 2020 Timing for the short wave and surface cold front appears on track, with the front moving through central South Dakota in the afternoon hours and passing by Huron at 3 PM. The cold air and breezy winds will create wind chill values dipping down into the mid-teens to lower 20s before sunrise, which will be an unwelcome change for most with temperatures near freezing. Any measurable precipitation is most likely going to be rain, with a slight chance of some freezing rain if cold air makes it south quicker than expected towards sunrise.
709 PM EDT Sun Mar 8 2020 Dry high pressure over the area will move off the coast tonight.
228 AM MDT Mon Mar 9 2020 Water vapor shows large trof over the western/central CONUS. At the surface, ridge covers the western Dakotas. Slightly cooler temps expected with highs in the 40s to lower 50s.
A low pressure system will move through the region Monday into early Tuesday, bringing widespread rainfall to the area, particularly Monday night. One more quiet night is expected overnight, with only a gradual increase in mid and high cloud ahead of the next low pressure system.
1145 PM MDT Sun Mar 8 2020 Scattered showers and an isolated thunderstorm or two continue mid this afternoon as a midlevel trough approaches from the west. Increased clouds and showers have allowed temperatures to run 5 to 10 degrees cooler than yesterday with many locations having hit their high for the day earlier this afternoon. Daytime highs on Monday will be comparable to today's, albeit slightly cooler. 700mb temperatures will drop by several degrees in the wake of the trough, allowing snow levels to drop by 1500 to 2000 feet or so. However, impacts and accumulations will be minimal with only a few inches expected in the higher elevations.
At the surface, an area of low pressure will follow a similar path with a trailing cold front.
121 AM CDT Mon Mar 9 2020 Shorter term concern remain timing of cold front overnight and chances for light rain Monday. Cold front progged to move into far western MN by evening and spread east toward MSP by 06z or so. Temperatures will struggle to rebound bake to the lower 40s after 12z Monday to the east with 30s common to the northwest with brisk northwest winds. We expect clearing to take hold into Monday night as high pressure ridge builds east with lighter winds. A trough axis and associated band of vorticity tracking east across the Plains will generate some light precip along it as it heads toward the Upper Mississippi Valley.
In the upper level, sub-tropical jet will allow some moisture to stream in from the southwest and we will likely see the upper level moistening up before the lower levels can fully saturate. The cold front will approach from the north Monday morning pushing through the forecast area through the day. Precipitation will wind down pretty quickly behind the front and cooler temperatures will move in with the coldest morning of the week being Tuesday morning.
402 AM EDT Mon Mar 9 2020 Another mild and windy day on tap this afternoon with highs generally in the lower 60s. Somewhat cooler air follows for the remainder of the week, though high temperatures will remain near of slightly above normal, with highs primarily in the 40s and 50s. Mixing within warm low level thermal trough will yield widespread 60-65 degree temps this aftn. Gusty winds have already been reported across northern IL in response to low pressure entering the Central Plains.
136 AM EDT Mon Mar 9 2020 High pressure will shift offshore into the middle of this week.
1036 PM CDT Sun Mar 8 2020 Deeper moisture transport will ramp up through the evening and overnight especially across south central and southeast Kansas in concert with the lift ahead of the approaching upper trof moving across the Southwest CONUS into the central/southern Rockies. The rather progressive upper trof will move eastward across the area on Monday. While the bulk of precip/coverage will move east of the area by mid-morning, expect some scattered/post-frontal showers across central Kansas until early afternoon, then potential for a few showers/storms along the cold front in far southeast Kansas in the mid to late afternoon. Tuesday still looks rather tranquil in the east-southeasterly low level return flow ahead of a northern stream upper trof.
Cold front continues to move across the CWA and has just recently moved through Aberdeen. Accumulations will be minimal at half an inch or less and should melt quickly with highs anticipated to be above freezing.
RMcQueen Upper ridging will remain overhead Tuesday and will allow for continued quiet and warm weather. By Tuesday morning an upper low will be parked just off the coast of southern CA. Models have generally trended slower with tracking the upper low inland and have been inconsistent with the progression of the upper low. Previous model runs transformed the upper low into an open wave by the time it moves near the FA, however 12Z runs either try to or keep the low closed.
/issued 230 PM CDT Sun Mar 8 2020/ Upper ridging is over the eastern half of the country with southwest flow over West Texas and southeast New Mexico. Temperatures today will be cooler than yesterday with the increase in cloud cover and moisture. An upper level low/trough will be just off the coast of California on Tuesday with west to southwest surface winds across West Texas and southeast New Mexico.
343 AM EDT Mon Mar 9 2020 High pressure will bring warm temperatures and dry conditions today. Showers will return Tuesday when a cold front moves through NY and PA.
331 AM CDT Mon Mar 9 2020 The low to mid clouds will slowly exit to the southeast through the day today. Meanwhile, an elongated area of low pressure will push a trough along the SD/WY/NE border this evening. The trough will shift into south central SD Tuesday morning, and southeastern SD Tuesday afternoon, while a ridge of high pressure lingers along the ND/SD border. At 500mb west to southwest flow aloft will continue, with weak disturbances moving trough. A stronger feature, trailing from the low moving across central to eastern Canada today through tonight, will move in from the west during the daylight hours Tuesday.
Dry weather will continue through today as high pressure centered over the Carolinas drifts offshore. Continued southerly flow on the backside of the high will maintain above-average temperatures and result in increasing moisture/cloud cover through today. Meanwhile, a tightening pressure gradient with the approach of low pressure, along with daytime mixing, will result in gusty winds near 25 mph this afternoon. Widespread rain showers are expected in advance of the weakening cold front on Tuesday. Onset time for rain across eastern Ohio continues to be around midnight Monday night into Tuesday, reaching the ridges around dawn on Tuesday. Lingering showers will remain across the higher elevations through around midnight Tuesday night.
226 AM MDT Mon Mar 9 2020 Synoptic Setup: Forecast begins with a broad scale trough over the western half of Canada touching the international Border. In between these two extensions a weak ridge has formed over the Idaho/Wyoming border that's now pressing towards eastern Montana with a warm front. Today through Tonight: Warm front will pass through the area late this morning bringing enough lift to generate snow showers.
1153 PM CDT Sun Mar 8 2020 Timing for the short wave and surface cold front appears on track, with the front moving through central South Dakota in the afternoon hours and passing by Huron at 3 PM. The cold air and breezy winds will create wind chill values dipping down into the mid-teens to lower 20s before sunrise, which will be an unwelcome change for most with temperatures near freezing. Any measurable precipitation is most likely going to be rain, with a slight chance of some freezing rain if cold air makes it south quicker than expected towards sunrise.
130 AM EDT Mon Mar 9 2020 High pressure/dry weather through Monday.
Temperatures will once again be warmer than normal through the period. First wave of precipitation arrives early Tuesday as a frontal boundary moves through the lower Mississippi Valley, advecting ample moisture into the state.
150 AM EDT Mon Mar 9 2020 Aviation - Near to above normal temperatures expected this week - Rain event from Monday morning to Tuesday morning - A couple additional precipitation events mid to late week -- Near to above normal temperatures expected this week -- Normal high temperatures for this time of year are in the low 40s and we are expecting to be near or above those levels all week.
401 AM EDT Mon Mar 9 2020 High pressure will shift offshore into the middle of this week.
Rain will come to an end around midnight monday with high pressure moving into the region for Tuesday.
Little change in the overall pattern with a western Atlantic ridge axis aligned across the Florida peninsula, with intermittent pockets of low level moisture within a moderate low level east wind. Temperatures will be above normal with daytime highs averaging in the lower 80s, and overnight lows in the lower to mid 70s.
152 AM EDT Mon Mar 9 2020 Dry high pressure over the area will move off the coast tonight.
Somewhat cooler air will then settle in behind the front for the remainder of the week, though high temperatures will remain near of slightly above normal, with highs primarily in the 40s and 50s. Otherwise, southwest return flow associated with a departing high pressure area will continue to spread mild temperatures across the region. A generally wet and mild period is ahead this upcoming week as subsequent upper level trofs eject northeast out of an upstream western CONUS trof. These smaller trofs or disturbances will move through the larger pattern and produce episodes of light rain this week.
104 AM CDT Mon Mar 9 2020 The main concern in the short term is with precipitation chances and winds along the cold front.
400 AM EDT Mon Mar 9 2020 High pressure will bring warm well above average temperatures and dry conditions today. Showers will return Tuesday when a cold front moves through the region.
1101 PM MDT Sun Mar 8 2020 The surface cold front had moved off to the southeast of the forecast area early this afternoon followed by gusty northwest winds and falling temperatures. Dry weather and cooler temperatures are expected on Monday with high temperatures mainly in the mid-40s to lower 50s.
138 PM MST Wed Dec 1 2021 The short term focus is on the near-record and record high temperatures forecast to be in the lower to middle 70s across the area today and Thursday. Northwest flow aloft flattens Thursday and Thursday night with a lee trough deepening along the Front Range in response to the more westerly flow streaming across the Rockies.
1056 AM EST Wed Dec 1 2021 Rain will continue through the rest of the morning and is still expected to come to an end late this afternoon as the upper trough pushes off to the east. Passage of the upper trough axis and onset of isentropic downglide this afternoon will bring an end to any lingering precipitation by 00Z, with dry weather expected through the remainder of the short term.