Aikyam-Lab/Synoptic-Bench huggingface dataset:
1203 PM EDT Mon Apr 5 2021 Dry weather with temperatures warming to above normal can be expected for the upcoming work-week as the center of high pressure anchors across the SE States.
1243 PM EDT Mon Apr 5 2021 High pressure will prevail through mid-week. A cold front will approach the area near the end of the week. High pressure will be the dominant feature at the surface today, although a weak trough will reside to the north. Highs are forecast to peak in the upper 70s/around 80 away from the locally cooler coastline. Tonight: The tranquil pattern will persist as high pressure remains the primary weather feature. Inland locations will likely dip in to the upper 40s while the coastal corridor falls into the low to mid 50s.
125 PM EDT Mon Apr 5 2021 High pressure through Tuesday. Forecast on track, as nocturnal warm advection convection rumbles upstream, across the lower Great Lakes. A temperature and especially dew point gradient sets up over the area this afternoon, and then shifts north of the area tonight, as the southeast tip of a warm front noses into the area today, and then northeastward tonight.
221 PM EDT Mon Apr 5 2021 High pressure through Tuesday. A surface col of high pressure will prevail through the period with dry and above seasonable temperatures.
Meanwhile, a closed low will move into the central Rockies by mid day tomorrow.
A weak cold front has passed through the area and breezy northerly winds have filled in behind. With clear skies and diminishing winds expected, overnight low temperatures falling into the low 20s appears likely for locations north of I-94.
245 PM CDT Mon Apr 5 2021 Above normal temperatures and mostly sunny skies will persit one more day before a cold front moves into the area with showers and thunderstorms for mid-week. High pressure will continue to dominate central and southeast Illinois through Tuesday. A deep cut-off low currently over the Pacific Northwest will push eastward over the next few days.
1120 AM MDT Mon Apr 5 2021 Current surface map shows weak low over western North Dakota with cold front advancing through southeast Montana. Cold front moves through northeast Wyoming/northwest South Dakota early this morning. Upper low tracks crosses Rockies into the central plains Tuesday. Thermal profiles support all snow in the higher Black Hills, with snow/rain mix on the plains. The other area that could see a few inches of snow accumulation would be along the Pine Ridge in southwest South Dakota Tuesday night.
Overall the evening should be very nice as well as a cold front drops southeast through the evening. Along and just behind this cold front showers and isolated thunderstorms will be possible. Very dry air in the low levels should aid wind gust potential with a freezing level around 10 kft which leaves a fairly deep warm layer. Just enough speed shear and turning in the lower levels that an isolated supercell could support slightly larger hail. Once this mostly diurnally driven activity shifts east weak ridging aloft should support quieter conditions through later in the night. There are some hints that this area could remain capped in the afternoon and forcing from about 900 mb to 800 mb will have the lowest CIN and best potential for development which would be a little more into the evening.
246 PM MDT Mon Apr 5 2021 Upper low dropping into Idaho at this time. Focus of system will be the Big Horns region on Tuesday as favorable east/northeasterly upslope will develop there late tonight as upper low deepens and moves into and across southern Wyoming. However, road temps quickly rebound despite the precipitation and cooler air thanks to April sun angle. Model consensus is for wet snow to spread into this region tomorrow and some of the higher hills could see some accumulation. Upper low will move into the central plains and precipitation will end from west to east Tuesday afternoon into the evening.
Cold front moved through our CWA overnight and today will be 15 to 20 degrees cooler than yesterday. Models show an upper low there and take it through Boise late today, then along the ID/NV border tonight. Hi-res models show the best chance of showers (which isn't very high except in the central Idaho mountains and Boise Mountains) just after the upper low passes, i. Tuesday looks mostly sunny and less windy and 5-10 degrees warmer than today as the upper low moves away. An upper level low pressure trough will bring scattered MVFR-IFR showers and areas of mountain obscuration through Tuesday morning.
Dry and warmer than normal conditions will continue, with increasing clouds later tomorrow. Locally, upper heights will begin to build tonight and into Tuesday as the ridge builds overhead, downstream of the Pac NW trough dropping into the Rockies and eventually the high plains of Colorado and western Kansas by Tuesday evening. Temperatures have climbed into the low 70s for most low elevation areas this afternoon, with lack of any warm southerly flow. Otherwise, dry conditions will continue as high pressure builds overhead. Increase southerly flow and subsequent low level moisture will likely lead to a few more afternoon CU, plus expect there will be a slight increase in high clouds ahead of the upper low as well. The axis of an amplified mid/upper ridge will be shifting east of the Appalachians to start the period.
Surface winds turn southerly by tonight into Tuesday, ushering in some warmer/moister air via warm air advection over the area. Lows tonight are warmer than last nights, with lows in the upper 40's to lower 50's.
209 PM EDT Mon Apr 5 2021 Dry conditions expected today and tomorrow with a stubborn area of high pressure over NY and NE PA.
Continue to watch the progression of the cold front as it moves southeast across the Dakotas. May have to expand it eastward even more, but a bit more uncertainty there whether or not the lowest RH coincides with the strongest wind gusts. A cold front will move through the region today.
Minor troughing over the region today will give way to weak ridging on Tuesday which should suppress another round of showers, although a minority of models do suggest a small window for very spotty streamer showers Tue morning from the Coastal Plains to the Victoria Crossroads.
With the Idaho's low approaching, the lee trough east of the Rockies will strengthen keeping wind speeds elevated overnight. Westerly winds will increase to 20-30 mph by late morning with the highest speeds expected up across our northwestern counties. RH values will be bone dry with RH values in the single digits everywhere except the eastern Rolling Plains which should only drop into the lower teens.
338 PM CDT Mon Apr 5 2021 As of 20z this afternoon, weak upper ridging was present over the southwestern US with a closed mid-level low diving southeast across the Pacific northwest. At the surface, high pressure remained in control of the southeast CONUS with a lee cyclone deepening over eastern Colorado. The primary forecast concern comes late Tuesday afternoon through the overnight hours as a cold front surges across the forecast area ahead of the ejecting wave. The cold front overtakes a dryline in central Kansas with better forcing for ascent likely leading to thunderstorm development Tuesday evening with multi-cell clusters moving east during the evening and overnight hours.
1147 AM EDT Mon Apr 5 2021 Broad SW flow around SE CONUS high pressure will provide another day of picture postcard weather for the Ohio Valley. Upper level ridging continues to nose in from the west today. Upper level ridging continues to build overhead through Tuesday resulting in another idyllic day across southern Indiana and central Kentucky.
Flat ridging with onshore winds in place this week will keep the Bay Area dry with seasonably cool temps through most of the upcoming work week. Daytime highs will also be fairly similar to yesterday: mid to upper 50s along the coastline with widespread 60s inland and a few spots reaching the low 70s. Daytime highs will gently nudge up on Tuesday by a few degrees with weak ridging overhead and a slight uptick in 850 mb temperatures.
317 PM EDT Mon Apr 5 2021 Deep layer ridging will prevail through tomorrow, resulting in partly cloudy skies and showers remaining primarily offshore. High pressure is forecast to keep the weather quiet into the weekend.
250 PM EDT Mon Apr 5 2021 High pressure remains situated over the Southeast, providing continued clear skies and dry conditions. Cold front loses much of its impetus to push into our forecast area as the upper flow turns mainly zonal.
242 PM MDT Mon Apr 5 2021 A rather compact upper level low now over southwest Idaho will drift east/southeast across far northern Utah tonight, and then across northern Colorado on Tuesday. At the surface, a cold front was currently pushing south through eastern Wyoming. Deeper moisture ahead of the upper level low will begin to increase across the mountains by Tuesday morning, with showers becoming more numerous, but most widespread shower coverage holds off til afternoon.
Offshore flow has already set up with northwest winds in the Illinois Valley with temperatures above freezing there. Very steep, warning level seas are expected south of Gold Beach today as a thermal trough deepens along the coast.
Broad SW flow around SE CONUS high pressure will provide another day of picture postcard weather for the Ohio Valley. Upper level ridging continues to nose in from the west today. Upper level ridging continues to build overhead through Tuesday resulting in another idyllic day across southern Indiana and central Kentucky.
As a result, we think most of the plains will once again reach the lower to mid 80s. The upper ridge has broken down and the region is mostly in zonal flow aloft. Winds will increase slightly over the higher terrain and portions of the adjacent plains by the late afternoon with some areas seeing gusting up to 25 mph at times.
313 PM EDT Mon Apr 5 2021 High pressure will remain in place over region through much of the work week, keeping dry and warming conditions in place. Highs will range from the mid to upper 70s coastal to the lower to mid 80s inland through the week.
309 PM EDT Mon Apr 5 2021 High pressure will prevail through mid-week. A cold front will approach the area near the end of the week.
Rising heights aloft are expected to occur as an upper level ridge builds overhead. Instead, the main focus should remain to our north in WI closer to the surface warm front.
Dewpoints have risen through the lower to mid 50s and are helping keep humidity values at peak heating above 35 if not above 40 percent.
308 PM EDT Mon Apr 5 2021 High pressure will remain over the Southeast through midweek while a weak frontal boundary lingers over the region. Low pressure over the Midwest will lift northeastward toward the Great Lakes late in the week, making little eastward progression as high pressure anchors itself north of New England.
1234 PM CDT Mon Apr 5 2021 Unseasonably warm conditions will continue through Tuesday with upper level ridging over the region along with persistent south- southwesterly surface winds. GKS Convection should spread into northeast and central MO late Tuesday night with increasing upper level divergence over this area ahead of an approaching upper level trough/low moving into the Central Plains, and as a strong southwesterly low level jet brings increasing low level moisture into the region.
High pressure dominating the weather pattern across South Florida. Winds will be generally light at 10mph or less across the region as high pressure moves into the region.
234 PM EDT Mon Apr 5 2021 High pressure through Tuesday. A surface col of high pressure will prevail through the period with dry and above seasonable temperatures.
GOES-16 Satellite trends place a ridge of high pressure over the Southeast United States.
For tonight, a warm front will continue to lift northward across northern Wisconsin. An area of low pressure along with a cold front, and weak upper level disturbance across Minnesota will head east into the state late tonight. There will be a lull or break in the activity until afternoon when activity fires up along the cold front that will be sagging south during the day. High temperatures will range from around 60 north to the lower to middle 70s south. Tuesday Night Through Monday A frontal boundary will remain across the western Great Lakes region, which will bring several periods of showers and isolated thunderstorms at times for the middle to late part of the week as several low pressure systems track through the region.
High pressure will keep conditions sunny and a few degrees warmer than yesterday. CD Chattanooga Airport, TN 50 77 53 78 60 / 0 0 0 10 70 Knoxville McGhee Tyson Airport, TN 49 75 52 78 59 / 0 0 0 10 60 Oak Ridge, TN 48 75 52 78 58 / 0 0 0 10 60 Tri Cities Airport, TN 45 73 48 76 54 / 0 0 0 10 30.
454 PM EDT Mon Apr 5 2021 Heights rise aloft through the short term, the result of induced ridging from low pressure dropping out of the Pacific northwest into the Central Plains by late Tuesday night. Sensible weather features continued dry weather and above normal temperatures on average, though overnight lows tonight will still drop to around 40 in our cooler valleys, close to normal for this time of year. There could be a little patchy fog in our cooler valleys tonight as well, but this will be limited to locations near larger sources of water. This leads to a higher amplitude ridge ahead of this feature and therefore warm and mostly dry conditions.
Those storms should track/expand northeast along the warm front over northern WI. For Tuesday, the warm frontal boundary will be stalled over central WI.
Precipitation will gradually taper off as the day progresses, although the higher elevations in Wallowa County may see very light snow or flurries during the late afternoon.
Meanwhile, the sfc map shows high pres centered acrs S AL/S GA/FL panhandle, with southerly winds around the western periphery of the high bringing increased low level moisture. This will help moderate overnight lows somewhat, with temps falling to the upper 50s acrs cntl LA to the lower 60s along and south of I-10. With more widespread cloud cover, overnight temperatures Tuesday night are expected to be considerably warmer, with lows in the middle and upper 60s.
A ridge of high pressure is in place across the Southeast United States this morning. As of 11 AM CDT, temperatures across the Mid-South are in the lower 70s across most locations. /issued 456 AM CDT Mon Apr 5 2021/ Quiet weather for a couple days, under low amplitude ridging aloft.
354 PM EDT Mon Apr 5 2021 Fair and dry weather this week with warmer temperatures as high pressure dominates. The region will remain sandwiched between the vertical stacked low off northern New England coast and ridging over the Ohio Valley and Great Lakes region. A short wave will slide southward along the east side of the ridge passing well to our southwest with no impact on our area. The stacked low will begin to gradually move eastward which will allow the ridge to the west to also shift eastward. Another short wave is expected to slide southward along the east side of the ridge Tuesday night.
Clearing skies this evening as high pressure overhead results in calm winds after sunset in most places. Most location will see overnight lows in the low to mid 50s, with upper 40s in normally cooler spots.
156 PM EDT Mon Apr 5 2021 High pressure centered south of the region will result in a continuation of dry and warm conditions. A slow moving cold front will bring an increasing chance of rain for mid to late week. For Tuesday, surface warm front has shifted further to the north with higher confidence in dry conditions across the forecast area. Mid-level ridge amplifies over the region as a closed low advances east out of the Rockies.
RH values will remain too moist for Fire Weather criteria but with the high winds on Tuesday this will still pose a increased fire weather threat. Tuesday temperatures will be warmer than today with highs ranging in the mid 90s out west to mid 70s along the coast and overnight lows in the upper 60s to low 70s.
At 333 PM, a surface cold front was drifting slowly southeast through South Dakota. Temperatures were in the lower 80s, and winds were gusting to 30 mph from the south. Ahead of the front dewpoints should rise by a couple of degrees (into the low to mid 50s), as moisture convergence continues. In any case, thunderstorm chances will be highest in the evening as the upper trough encroaches on the region.
A closed system of low pressure will move across southern Idaho this afternoon.
1154 AM EDT Mon Apr 5 2021 High pressure through Tuesday. Forecast on track, as nocturnal warm advection convection rumbles upstream, across the lower Great Lakes. A temperature and especially dew point gradient sets up over the area this afternoon, and then shifts north of the area tonight, as the southeast tip of a warm front noses into the area today, and then northeastward tonight.
Expect dry weather to prevail for the rest of the afternoon as high pressure builds back into the region.
As a result, tonight will be very mild with lows in the upper 40s to low 50s - nearly ten degrees above daily average! An approaching weakness in mid level ridging may increase cloud cover overnight, but with such limited moisture throughout the atmospheric profile, nothing more than some mid-level stratus is expected to develop.
306 PM EDT Mon Apr 5 2021 High pressure centered over north-central Florida supports moderate to fresh, east to southeast breezes across the Florida Keys.
203 PM MDT Mon Apr 5 2021 A mix of snow and rain over portions of central and southwest Montana will continue through tonight before tapering off and giving way to drier and slightly warmer conditions on Tuesday.
310 PM CDT Mon Apr 5 2021 High pressure over the southeast CONUS continues to flex its muscles over the region, so another pleasant spring day is underway.
104 PM EDT Mon Apr 5 2021 High pressure will cover the southeast United States with weak stationary front from the Great Lakes to the Mid Atlantic states.
Zonal upper level flow is expected to begin to turn to the southwest ahead of an approaching closed low system this afternoon and tonight. At the sfc lee troughing is deepening with this shift along with a developing cold front running SW to NE across the Sandhills. After day break, more widespread showers and thunderstorms are expected to develop along the cold front.
Strong cold front has cleared the southeastern corner of the CWA. Other than an adjustment to increase wind speeds/gusts in the post-cold frontal environment for a few hours, no changes planned to the rest of the tonight period. Focus will then shift to the approaching low pressure system and associated precipitation.
1041 PM EDT Mon Apr 5 2021 Currently, air temperatures in Keys island communities are in the lower 70s, with dewpoint temperatures mostly in the upper 50s. A steady east breeze prevails south of a high pressure cell centered between the northeastern Gulf of Mexico and western North Atlantic.
711 PM MDT Mon Apr 5 2021 A mix of snow and rain over portions of central and southwest Montana will continue through tonight before tapering off and giving way to drier and slightly warmer conditions on Tuesday.
541 PM EDT Mon Apr 5 2021 High pressure through Tuesday. A surface col of high pressure will prevail through the period with dry and above seasonable temperatures.
As of 20z this afternoon, weak upper ridging was present over the southwestern US with a closed mid-level low diving southeast across the Pacific northwest. At the surface, high pressure remained in control of the southeast CONUS with a lee cyclone deepening over eastern Colorado. The primary forecast concern comes late Tuesday afternoon through the overnight hours as a cold front surges across the forecast area ahead of the ejecting wave. The cold front overtakes a dryline in central Kansas with better forcing for ascent likely leading to thunderstorm development Tuesday evening with multi-cell clusters moving east during the evening and overnight hours.
High pressure will keep onshore winds in place this week as dry weather conditions will continue.
757 PM EDT Mon Apr 5 2021 High pressure over the Western Atlantic Waters will keep the weather dry over South Florida tonight keeping the weather dry. The easterly wind speed will also continue to decrease tonight over the area due to the high over the Western Atlantic waters. Therefore, the High Risk of Rip Currents will be allowed to expired for the east coast beaches this evening and replace with a Moderate Risk of Rip Currents. Deep layer ridging will prevail through tomorrow, resulting in partly cloudy skies and showers remaining primarily offshore. High pressure is forecast to keep the weather quiet into the weekend.
A average spring cold front continues to move southeast this afternoon and is approaching Highway 50. Winds look to diminish tonight as a low amplitude ridge moves overhead.
/issued 313 PM EDT Mon Apr 5 2021/ High pressure will remain in place over region through much of the work week, keeping dry and warming conditions in place. Highs will range from the mid to upper 70s coastal to the lower to mid 80s inland through the week.
/Issued 250 PM EDT Mon Apr 5 2021/ High pressure remains situated over the Southeast, providing continued clear skies and dry conditions. Cold front loses much of its impetus to push into our forecast area as the upper flow turns mainly zonal.
High pressure will continue to dominate central and southeast Illinois through Tuesday. A deep cut-off low currently over the Pacific Northwest will push eastward over the next few days.
919 PM EDT Mon Apr 5 2021 High pressure will prevail through mid-week. A cold front will approach the area near the end of the week. High pressure will remain across the region tonight.
Mostly sunny skies and fair conditions tomorrow as weak ridging aloft moves overhead.
An upper level low is currently moving southeast through the area.
Winds from the south will continue to very gradually pick up overnight as upper-level ridging weakens, and the next trough is on its way from the Intermountain West. /issued 651 PM CDT Mon Apr 5 2021/ For the 06/00Z TAF update, southerly flow continues to increase in magnitude as the next trough and chance of precipitation approaches our airspace.
Otherwise, most locations will reach the low to mid 50s which is several degrees below normal.
Heights rise aloft through the short term, the result of induced ridging from low pressure dropping out of the Pacific northwest into the Central Plains by late Tuesday night. Sensible weather features continued dry weather and above normal temperatures on average, though overnight lows tonight will still drop to around 40 in our cooler valleys, close to normal for this time of year. There could be a little patchy fog in our cooler valleys tonight as well, but this will be limited to locations near larger sources of water. This leads to a higher amplitude ridge ahead of this feature and therefore warm and mostly dry conditions.
929 PM EDT Mon Apr 5 2021 High pressure will remain over the Southeast through midweek while a weak frontal zone lingers over the region. Low pressure over the Midwest will lift northeastward toward the Great Lakes late in the week, making little eastward progression as high pressure anchors itself north of New England.
635 PM EDT Mon Apr 5 2021 High pressure will prevail through mid-week. A cold front will approach the area near the end of the week.
759 PM EDT Mon Apr 5 2021 High pressure will cover the southeast United States, as a weak stationary front stretches from the Great Lakes to the Mid Atlantic states.
847 PM MDT Mon Apr 5 2021 A mix of snow and rain over portions of central and southwest Montana will continue through tonight before tapering off and giving way to drier and slightly warmer conditions on Tuesday.
A mix of snow and rain over portions of central and southwest Montana will continue through tonight before tapering off and giving way to drier and slightly warmer conditions on Tuesday.