Aikyam-Lab/Synoptic-Bench huggingface dataset:
632 AM EDT Sun Apr 4 2021 High pressure dominates, with dry weather and moderating temperatures into the new week. High pressure continues to remain in control across the area, with dry conditions. Frost advisory will continue as coded, and as expected, potential for frost appears to mainly be confined to sheltered valleys with a ridge/valley temperature split this evening. The front parallels the mid and upper level flow, with ridging approaching from the west.
Temperatures have warmed solidly above freezing everywhere this morning. 07z sfc analysis shows high pressure edging to the south of the area. This has kept the skies mostly clear overnight along with light winds supporting a rather large ridge to valley temperature difference. Readings vary from near 30 degrees in the most sheltered spots to the mid 40s on the ridges. Dewpoints, meanwhile, are generally around 30 in the valleys to the low 20s on the ridges. They all depict the waning influence of a departing deep eastern trough as flat ridging moves into the region today and tonight. Look for another rather large ridge to valley difference in temperatures tonight allowing for some spots of frost in the most sheltered locations.
522 AM MDT Sun Apr 4 2021 Another day of unseasonably warm temperatures today as high temperatures soar under the continued presence of an upper level ridge to the south. More to speak to as we enter the work week as an upper level trough drops out of the Pacific Northwest and dives just south of the WY-CO border.
07z sfc analysis shows high pressure edging to the south of the area. This has kept the skies mostly clear overnight along with light winds supporting a rather large ridge to valley temperature difference. Readings vary from near 30 degrees in the most sheltered spots to the mid 40s on the ridges. Dewpoints, meanwhile, are generally around 30 in the valleys to the low 20s on the ridges. They all depict the waning influence of a departing deep eastern trough as flat ridging moves into the region today and tonight. Look for another rather large ridge to valley difference in temperatures tonight allowing for some spots of frost in the most sheltered locations.
It'll be a hot one under strong high pressure aloft.
919 AM EDT Sun Apr 4 2021 High pressure is expected to bring seasonable weather over the next couple of days with the next chance of precipitation coming mid week. Tonight, the atmosphere will have a tough time decoupling so winds will help keep the lower levels mixed.
702 AM EDT Sun Apr 4 2021 Aviation -Warm and dry today -Showers and storms late tonight and Monday -Upper low brings late week rain --Warm and dry today-- Pleasant weather expected today as surface ridging settles in behind a weak west-east oriented sfc frontal boundary which stalls near the MI/IN border. Mainly just some high cloudiness riding along the flat upper ridge today so a mostly sunny fcst should work for most areas, but clouds may thicken up north of I-96 this afternoon. Additional clusters of elevated showers and storms may impact the area on Monday with warm front remaining situated over the area. --Upper low brings late week rain-- After Monday, the coverage/potential for showers and tstms should decrease somewhat as an upper ridge begins to build/amplify ahead of the deepening trough/upper low coming across the Rockies.
314 AM MDT Sun Apr 4 2021 The upper level ridge will be east of Colorado today with westerly flow aloft prevailing behind it. An upper level low will drop out of the Pacific NW through the day on Monday and break up the upper level ridge leaving Colorado in southwest flow aloft. QG ascent will increase with the approach of the low along with mid-level moisture bringing some increase clouds through the day. Despite this 700 mb temperatures are still ranging from 8 to 10C that could bring another 80 degree day to a large portion of the lower plains area Monday.
As it does, a warm front will lift northeastward during the afternoon hours. Mostly southerly winds away from the lakeshore will support highs in the low to mid 70s. Areas along a line from Kenosha to roughly west of Fond du Lac and eastward will see cooler high temperatures today, as southeasterly winds will create a fetch off of the lake. There will be passing high clouds today as well, owing to the low and overrunning along the warm front. Overnight Sunday into Monday, we'll get into the warm sector of the low pressure system and dew points will gradually rise. With the warm front present as the initiating boundary, some sparse shower and thunderstorm activity could develop before daybreak.
746 AM EDT Sun Apr 4 2021 Dry weather and warmer weather is expected today under high pressure. A broad area of high pressure should maintain dry weather and mostly sunny skies today. Dry weather should continue tonight as the broad area of high pressure tracks east across the region. An upper low is progged to persist of the NE CONUS through mid week, as a weak ridge tracks across the Midwest.
However, with the low-level moisture can not rule out an isolated light shower over the Atlantic waters or the east coast with the breeze off the ocean and warm Gulf stream. Mostly dry conditions again today as high pressure across the southeast continues to migrate toward the region. A closed upper low should gradually lift from the central Great Plains into the Upper Midwest as quasi-zonal flow prevails from the Gulf of Mexico through the Bahamas.
1055 AM EDT Sun Apr 4 2021 Dry weather and warmer weather is expected today under high pressure. A broad area of high pressure should maintain dry weather and mostly sunny skies today. Dry weather should continue tonight as the broad area of high pressure tracks east across the region. An upper low is progged to persist of the NE CONUS through mid week, as a weak ridge tracks across the Midwest.
913 AM EDT Sun Apr 4 2021 High pressure dominates, with dry weather and moderating temperatures into the new week. High pressure continues to remain in control across the area, with dry conditions. Frost advisory will continue as coded, and as expected, potential for frost appears to mainly be confined to sheltered valleys with a ridge/valley temperature split this evening. The front parallels the mid and upper level flow, with ridging approaching from the west.
A low pressure system will dig southwards along the Pacific northwest coast today, which will begin to introduce clouds, showers and cooler temperatures. Fairly widespread precipitation will develop with this feature, especially along and south of the Highway 12 corridor. Under the cold core of this low pressure circulation, snow level could be driven down as low as 3000 feet. This could bringing slushy snow accumulations to locations such as the Camas Prairie in Idaho eastward into the higher valleys of southwest Montana.
620 AM EDT Sun Apr 4 2021 High pressure is expected to bring seasonable weather over the next couple of days with the next chance of precipitation coming mid week. Tonight, the atmosphere will have a tough time decoupling so winds will help keep the lower levels mixed.
950 AM EDT Sun Apr 4 2021 Dry, high pressure will prevail through mid week. A cold front will then approach the area near the end of the week. Expect clear skies with highs forecast to reach the lower 70s over most areas away from the locally cooler coastline. Although winds will be light and skies mostly clear, the atmosphere will be warmer than the previous night, but still cook/below normal temperatures, in mid 40s well inland, and the upper 40s to lower 50s near the coast. A noticeable warming trend is expected as mid/upper lvl ridging broadens just west of the area and shifts eastward.
Broad ridging to our west will remain in place through Monday night. There will be a weak mid-level ridge across the Great Lakes, placed between a pair of upper level lows near Hudson Bay and off the New England coast. Disturbances will track along a slow moving warm frontal boundary which will be located to our west.
Mostly dry conditions again today as high pressure across the southeast continues to migrate toward the region. A closed upper low should gradually lift from the central Great Plains into the Upper Midwest as quasi-zonal flow prevails from the Gulf of Mexico through the Bahamas.
632 AM CDT Sun Apr 4 2021 Kansas will remain under the influence of the broader low amplitude ridge migrating eastward today over the northern Plains into the Upper Midwest.
421 AM MDT Sun Apr 4 2021 Another day of unseasonably warm temperatures today as high temperatures soar under the continued presence of an upper level ridge to the south. More to speak to as we enter the work week as an upper level trough drops out of the Pacific Northwest and dives just south of the WY-CO border.
401 AM MDT Sun Apr 4 2021 The longwave ridge that has brought the warm temperatures to our region will continue to flatten and shift east. For Monday, a tight Pacific trough will dig into northern portions of the Great Basin. This trough will be supported by a relatively weak jet streak but as it drops down, the pressure gradient does look to tighten across our area. Outside of the fire weather concerns, another warm day on tap as southwesterly flow keeps pumping in the warmer air.
1214 PM CDT Sun Apr 4 2021 An upper level ridge is building east over the region early this morning. Southwesterly winds will continue to usher warmer temperatures into the area today. Highs will generally warm into the middle to upper 70s today, with some locations in the lower 80s not out of the question across portions of central MO. Southwesterly winds around 10 to 15 mph with gusts up to around 20 mph will be possible today, with the higher gusts expected across southeastern Kansas and western Missouri. The upper level ridge will remain over the area early this week. A weak upper level disturbance will ride through the ridge on Monday.
High pressure at the surface will continue to influence the weather across the region. Temperatures will be warmer on Monday with highs in the low to mid 70's under clear skies.
1251 PM EDT Sun Apr 4 2021 High pressure the first half of the week. High pressure continues to remain in control across the area, with dry conditions. Frost advisory will continue as coded, and as expected, potential for frost appears to mainly be confined to sheltered valleys with a ridge/valley temperature split this evening.
Highs today remain on track to warm in the lower to mid 70s inland and in the mid 60s to around 70 degrees near the immediate coast.
1130 AM MDT Sun Apr 4 2021 Another day of unseasonably warm temperatures today as high temperatures soar under the continued presence of an upper level ridge to the south. More to speak to as we enter the work week as an upper level trough drops out of the Pacific Northwest and dives just south of the WY-CO border.
This cloud cover has kept temps, on average, about 5 degrees cooler than yesterday across SE OK. A similar pattern is expected for tomorrow and slightly veered increasing low level flow should result in warmer afternoon highs exceeding 80 F over the western half of the FA.
WV imagery indicates weak ridging aloft transitioning eastward through the Central Plains. Near the surface, a strengthening lee side trough of low pressure remains anchored in eastern Colorado. Relatively dry conditions will continue tonight into Monday as weak ridging aloft moves off to the east, giving way to a zonal flow across the Western High Plains. Unseasonably warm temperatures are likely tonight as prevailing southerlies continue to draw warmer air into western Kansas. Look for lows only down into the lower/mid 50s(F) for much of the area, especially with the help of expected increased mid/high level clouds overnight. The reinforced warmer air mass across the high plains will allow highs to push well up into the 80s(F) Monday afternoon with near 90F possible in portions of extreme southwest Kansas.
Accompanying this low level jet will be a theta e ridge and mid level fgen increases as the feature moves through. Severe weather looks unlikely given the low amounts of instability that is predicted. Some of the high res models showed well over 1.
A cold front moves through the area tomorrow, moving through eastern ND in the morning and MN in the afternoon/evening. With the forcing of the cold front and parent s/w trough aloft, there continues to be the chance for thunderstorms in Minnesota Monday afternoon/evening.
There will also be some passing high cirrus clouds as a midlevel trough passes well to our north.
The upper level ridge will be east of Colorado today with westerly flow aloft prevailing behind it. An upper level low will drop out of the Pacific NW through the day on Monday and break up the upper level ridge leaving Colorado in southwest flow aloft. QG ascent will increase with the approach of the low along with mid-level moisture bringing some increase clouds through the day. Despite this 700 mb temperatures are still ranging from 8 to 10C that could bring another 80 degree day to a large portion of the lower plains area Monday.
252 PM CDT Sun Apr 4 2021 West Texas remains in a subtle weakness under an upper level ridge more or less up the central CONUS. Otherwise, it appears Monday will be a lot like today's weather except a few degrees warmer.
Persistent onshore flow will continue to increase moisture in the lower levels which will set us up for a round of fog tonight. Temps tonight will fall into the low 60s across much of the region. Rain chances will taper off during the afternoon as the wave nudges east and weak ridging shifts in.
A preliminary look at some of the guidance shows the models overall have backed off on not only the coverage area of precipitation, but amounts as the upper trough moves into the area. The upper trough is expected to swing through, just northeast of the area late tonight into Monday.
223 PM MDT Sun Apr 4 2021 Upper level ridging will continue to flatten out tonight into tomorrow, though well above normal temperatures are expected to continue. Across the higher terrain, a some light rain/virga has developed, and these should continue through the early evening hours under very modest (SBCAPE near 250 J/kg) instability. Warm temperatures are likely overnight, with lows in the low to mid 40s across the plains. Aloft, 700mb temperatures should be about 1C warmer than today, which should translate to surface temperatures a couple degrees warmer than today. More details on the cooler temperatures and rain chances below.
with a warm front up across midwest and a cold front back down into west TX. The main cold front is expected to move through Thu night, and another weak SFC/LL trough, as well as the upper trough from the Great Lakes upper will remain late week/into the weekend. Ridging influences surface and aloft should provide for SKC/VFR conditions thru 05/18Z.
109 PM CDT Sun Apr 4 2021 Kansas will remain under the influence of the broader low amplitude ridge migrating eastward today over the northern Plains into the Upper Midwest.
Will be watching the progression of a cold front which will move from northwest to southeast across the area on Monday.
Monday begins a period of much warmer temperatures as low level flow becomes more south-southwesterly and the 850 mb ridge strengthens. The warming trend that started on Monday will continue Monday night with mild overnight lows in the upper 50s to the low 60s.
115 PM EDT Sun Apr 4 2021 High pressure will cover the Tennessee Valley and southeast United States into Monday with dry weather and warmer temperatures.
Diegan Chattanooga Airport, TN 45 75 49 75 53 / 0 0 0 0 0 Knoxville McGhee Tyson Airport, TN 44 72 48 73 52 / 0 0 0 0 0 Oak Ridge, TN 43 73 47 74 51 / 0 0 0 0 0 Tri Cities Airport, TN 40 70 45 72 49 / 0 0 0 0 0.
1218 PM CDT Sun Apr 4 2021 The warming trend will continue due to upper level ridging over the region along with persistent south-southwest winds.
Weak low pressure will dominate the region today. Low pressure will continue to push east on Monday and become more well-defined. Strong caa will set up on the north to northwest side of the low with a 12C drop in H85 temps noticeable in the tight thermal packing. At the same time, the southerly winds ahead of the low will draw up some minimal moisture.
A preliminary look at some of the guidance shows the models overall have backed off on not only the coverage area of precipitation, but amounts as the upper trough moves into the area. The upper trough is expected to swing through, just northeast of the area late tonight into Monday. Patchy MVFR ceilings will likely push into the lower Umpqua Valley and perhaps around Roseburg around sunrise. If the lower conditions do develop, expect improvement by the afternoon.
247 PM CDT Sun Apr 4 2021 Tonight and Monday: The weak mid level trough over TX will begin to slowly move east through the period and bring a gradual increase in mid level moisture. Also, while initially light, surface winds will begin to increase over western portions Monday and further increase moisture in the lower levels.
1124 AM MDT Sun Apr 4 2021 The longwave ridge that has brought the warm temperatures to our region will continue to flatten and shift east. For Monday, a tight Pacific trough will dig into northern portions of the Great Basin. This trough will be supported by a relatively weak jet streak but as it drops down, the pressure gradient does look to tighten across our area. Outside of the fire weather concerns, another warm day on tap as southwesterly flow keeps pumping in the warmer air.
1233 PM EDT Sun Apr 4 2021 Dry, high pressure will prevail through mid week. A cold front will then approach the area near the end of the week. Expect clear skies with highs forecast to reach the lower 70s over most areas away from the locally cooler coastline. Although winds will be light and skies mostly clear, the atmosphere will be warmer than the previous night, but still cook/below normal temperatures, in mid 40s well inland, and the upper 40s to lower 50s near the coast. A noticeable warming trend is expected as mid/upper lvl ridging broadens just west of the area and shifts eastward.
149 PM MDT Sun Apr 4 2021 The ridge will continue to break down over southeastern Montana as the next trough digs into the area. Precipitation will also fill in behind, bringing snow to the mountains and rain to the lower elevations. There will be decent upslope in the mountain and foothills, so expecting the mountains and foothills to see the highest totals.
1233 PM EDT Sun Apr 4 2021 High pressure provides dry weather tonight. High pressure will maintain dry weather through tonight. The sky is expected to initially remain mostly clear, but clouds will begin to increase a bit towards morning as a warm front crosses and clouds spill over an upper ridge centered over the Mississippi Valley. During this period, an upper low will spin offshore of New England, while ridging very slowly moves eastward into the Ohio Valley.
351 PM CDT Sun Apr 4 2021 A warm Easter afternoon across northeast Kansas today, as southerly flow and WAA continue underneath a broad upper ridge. Temperatures have warmed into the low to mid 80s as of 3 PM.
It has been a very warm Easter with highs reaching the lower to mid 80s today. And humidity was down into the lower 20% range across south central NE near the KS border, and while winds have been gusty 25-30 mph, probably just short of red flag conditions there. Chances overnight will only be about 20% within a confined corridor along the nose of the low level jet. This will again help to boost temps into the lower 80s for most areas. This brings another chance of showers and storms to the area, but mostly to northeast NE, and then along an advancing cold front moving into the area.
High pressure continues to control the weather conditions over much of the southeast. Temperatures are already running around 5 degrees warmer than yesterday. With little cloud cover expected through the day, highs should climb into the upper 60s/lower 70s today (maybe a tad higher in typically warmer locations). A very dry day on tap with relative humidity values likely dropping into the lower to mid 20 percent range near and east of the I-65 corridor. As a result, temperatures are only expected to fall into the low/mid 40s by Monday morning at most locations.
During the second half of the week the high will drift east out into the Atlantic Ocean with a weakening cold front approaching from the northwest. High pressure settles over the area favoring improving boating conditions as winds and seas continue to diminish and subside.
337 PM EDT Sun Apr 4 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 the dominant surface feature over the region tonight. Lows are forecast to range from the low/mid 40s inland to lower 50s at the immediate coast.
139 PM EDT Sun Apr 4 2021 Aviation -Warm and dry today -Showers and storms late tonight and Monday -Upper low brings late week rain --Warm and dry today-- Pleasant weather expected today as surface ridging settles in behind a weak west-east oriented sfc frontal boundary which stalls near the MI/IN border. Mainly just some high cloudiness riding along the flat upper ridge today so a mostly sunny fcst should work for most areas, but clouds may thicken up north of I-96 this afternoon. Additional clusters of elevated showers and storms may impact the area on Monday with warm front remaining situated over the area. --Upper low brings late week rain-- After Monday, the coverage/potential for showers and tstms should decrease somewhat as an upper ridge begins to build/amplify ahead of the deepening trough/upper low coming across the Rockies.
338 PM EDT Sun Apr 4 2021 Lower amplitude upper ridge axis featured along the front range of the rockies late this afternoon, with the outer expanse of the associated elevated upper height field encroaching upon the great lakes within the existing mid level northwest flow. Slightly elevated portion of the warm frontal zone maintains residence Monday and Monday night, as the surface front hangs just to the southwest.
High pressure regime continues, need we really say more? Afternoon temperatures continue to increase with each day with low 70s today giving way to highs in the mid to upper 70s tomorrow. Overnight, radiational cooling will once again be strong with clear skies and calm winds but should stay in the low 40s, which mean no more frost or freeze threat.
04/18Z TAF CYCLE High pressure continues to dominant the current weather pattern. Today Through Monday Night Early morning SFC obs show temps about 10 deg warmer or so early this Sun morning compared to Sat morning. Even warmer temps will be seen on Mon.
1121 AM MDT Sun Apr 4 2021 H5 ridge continues to dominate the weather across the state today. Conditions finally change on Monday as a trough finally breaks down the ridge. This will begin to bring surface moisture northward into the region, along with cooler air aloft.
The system will move east of the state by 12z Monday with a trailing cold front stalling across southern Wisconsin. The front will is expected to lift northward as a warm front. Monday Night Through Sunday Showers and thunderstorms should increase Monday night as a cold front sinks south across the area.
High pressure will result in VFR conditions and light winds through the period at all sites. JB Chattanooga Airport, TN 71 45 75 49 75 / 0 0 0 0 0 Knoxville McGhee Tyson Airport, TN 70 44 72 48 73 / 0 0 0 0 0 Oak Ridge, TN 71 43 73 47 74 / 0 0 0 0 0 Tri Cities Airport, TN 67 40 70 45 72 / 0 0 0 0 0.
Negatively-tilted troughing/cutoff upper low off the New England coast will generate a strengthening ocean storm off the Canadian Maritime region that will maintain a deep and dry northwesterly flow pattern over the region. Surface ridging centered directly over the area will gradually weaken and will essentially remain in place through tonight. Full sunshine this afternoon will allow temperatures to climb into the low to mid 70s, except upper 60s to near 70 at coastal locations.
Monday begins a period of much warmer temperatures as low level flow becomes more south-southwesterly and the 850 mb ridge strengthens.