Aikyam-Lab/Synoptic-Bench huggingface dataset:
1211 AM CDT Sat Apr 24 2021 (This evening through Saturday) With the approach of an upper trough from New Mexico, isolated to scattered showers and thunderstorms continue to develop across some of our eastern counties this afternoon, ahead of a dryline. As the upper trough shifts quickly east across the southern Plains and Texas, a weak cold cold front will move south across our area late tonight and early Saturday morning. Highs will be in the mid to upper 70s across northern and eastern parts of our area, and in the lower 80s across our southern counties and southern Concho Valley.
Light rain/showers wrapping north and northwest of the low will be slow to exit but should gradually end west-east, exiting our eastern counties by early-mid afternoon. Some gage sites are just starting to react, but it look like any flooding/low water bridge closures will be few. With a clearing sky and light winds with high pressure moving in tonight, will keep fog in the forecast.
As the low pressure system shifts east Saturday night into Sunday, high pressure will follow stalling over the area.
1116 PM MDT Fri Apr 23 2021 06Z TAF CYCLE Dry w-nw flow aloft with sfc lee trough developing by 15Z. Windy conditions will continue through the evening behind a Pacific cold front and any showers tapering off. Winds won't be as strong on Saturday with slightly warmer temperatures than today's readings.
Warmer, highs in the mid 60s F today, lower 70s F Sunday.
1121 PM CDT Fri Apr 23 2021 A disturbance embedded within an upper trough across the Northern Plains will move across north central Nebraska tonight. Lows from the upper 20s northwest to the lower 30s southeast. The exception will across far southwest, from near 60 to the lower 60s. A warm front will lift across northern NE Saturday night as a weak disturbance moves across a flattened upper ridge.
233 AM MDT Sat Apr 24 2021 It will be drier today as the wave of a weak trough exiting the state. On Sunday, a flat upper level ridge will slide east of Colorado with flow aloft slowly backing to the southwest. At the surface, a lee side trough deepens across eastern Colorado.
451 AM MDT Sat Apr 24 2021 Early morning upper level analysis has broad northern CONUS trof slowly shifting east as weak ridge builds over the northern Rockies. As the surface, Canadian high pressure resides over the Dakotas, with light and variable winds across much of the area. Temperatures will be a bit warmer today, in the 50s under variably cloudy skies. Upper ridge shifts into the northern Plains tonight as strong warm advection occurs over the South Dakota plains. Sunday will be very warm and dry as upper ridge axis crosses the northern Plains. A strong trof develops over the western CONUS on Sunday, shifting into the Great Basin area by Sunday night.
Moisture was flowing north off the gulf to the east of the low, and overrunning our cool air mass. As isentropic lift off the gulf continues and the upper trough approaches, rain will overspread the JKL forecast area from southwest to northeast this morning and early afternoon. Another upper level trough traveling from the Great Lakes tonight to New England on Sunday will send a cold front southeast through the area on Sunday. Aside from the low levels, moisture will be limited, and no precipitation is forecast. The front will be losing momentum and losing definition as it arrives, and only a glancing shot of cooler and drier air will make it here. A sprawling ridge of high pressure, along with its steady southerly flow, will bring much warmer weather to eastern Kentucky through the middle of the upcoming work week.
1032 AM EDT Sat Apr 24 2021 Expect a dry and warmer day today before some rain showers occur late tonight into Sunday due to the passage of a cold front.
312 AM MDT Sat Apr 24 2021 Early morning upper level analysis has broad northern CONUS trof slowly shifting east as weak ridge builds over the northern Rockies. As the surface, Canadian high pressure resides over the Dakotas, with light and variable winds across much of the area. Temperatures will be a bit warmer today, in the 50s under variably cloudy skies. Upper ridge shifts into the northern Plains tonight as strong warm advection occurs over the South Dakota plains. Sunday will be very warm and dry as upper ridge axis crosses the northern Plains. A strong trof develops over the western CONUS on Sunday, shifting into the Great Basin area by Sunday night.
414 AM MDT Sat Apr 24 2021 Flow aloft flattens across the area today, with increasing winds at all levels this afternoon as surface lee trough deepens along I-25.
414 AM CDT Sat Apr 24 2021 It will be a pretty nice weekend, a bit cooler today with light winds, then 70s for highs on Sunday, but a little more breezy.
448 AM MDT Sat Apr 24 2021 A transitory ridge is building in across eastern Utah and western Colorado this morning, bringing warmer temperatures and mostly sunny skies with it.
430 AM CDT Sat Apr 24 2021 A cold front is advancing across Minnesota early this morning with a band of light precip filling in along a line from Duluth to Hutchinson to Fairmont. Behind the front, temperatures have fallen to around freezing and some light snow is being reported across western Minnesota, however no accumulation is anticipated. Southwestern Minnesota will see the highest amounts and also the greatest chance for snow. While a trace to possibly an inch or two may accumulate early in the morning, it will melt fairly quickly thanks to warm ground temps and highs in the low to mid 40s.
A cold front is advancing across Minnesota early this morning with a band of light precip filling in along a line from Duluth to Hutchinson to Fairmont. Behind the front, temperatures have fallen to around freezing and some light snow is being reported across western Minnesota, however no accumulation is anticipated. Southwestern Minnesota will see the highest amounts and also the greatest chance for snow. While a trace to possibly an inch or two may accumulate early in the morning, it will melt fairly quickly thanks to warm ground temps and highs in the low to mid 40s.
628 AM CDT Sat Apr 24 2021 (Today and tonight) Cold front working its way through the area early this morning, and will continue south and out of the area by mid morning. Temperatures will be a little cooler today with highs ranging from the mid 70s across the Big Country to lower 80s along I- 10. High pressure shifts east and surface winds being to swing around to the southeast overnight.
Strong mid level Fgen forcing and temperatures falling near to below the freezing mark increase confidence that areas along and northeast of a line from Huron and Madison SD to Pipestone and Windom MN will see snow accumulations tonight. The latest HREF shows potential for snowfall rates exceeding 1 inch per hour along and east of the Buffalo Ridge in MN from 6-9am Sunday morning. Given the high likelihood of a mesoscale snow band coupled with higher terrain, decreased temperatures and bumped up QPF and Snow Ratios a bit in this region to introduce isolated 2-3 inch amounts.
309 AM MDT Sat Apr 24 2021 Expect warmer temps today, but will be limited somewhat by increasing cloud cover. Showers will spread across the region late Sunday evening and night, spreading mainly rain across lower elevations, thanks to warmer overnight temps. Models have been consistent with warmer overnight temps, but we will watch closely for indications of cooler temps, as would not take much cooling to have snow event rather than rain.
wrap around moisture will drop SE over the NRN half of the state under the main upper level trough/low. Expect primarily SHRA with maybe some isolated TSRA with this activity into the afternoon hrs before all precip ends late this afternoon and this evening as the trough exits the region. High pressure will move into the state by Sun morning.
721 AM EDT Sat Apr 24 2021 A steady increase in higher based VFR cloud cover today, as moisture modestly deepens north of a system tracking through the lower Ohio valley. A cold front arrives tonight, accompanied by an expanding coverage of the low stratus and a secondary window for brief light rain development. Low stratus then accompanies a cold front late tonight, along with a wind shift to northwesterly. Better chances for more widespread light showers now look to be on the northern wave's cold front that will swing across the region late this evening/tonight. Cooler air behind the front/wave still expected on Sunday with 850mb temps falling to around 0C, perhaps a degree or two below. Highs Sunday will only get into the low to mid 50s as a result.
The actual cold front/dryline feature will not arrive and move across the forecast area until this afternoon. High pressure will then build into the forecast area with rather cool night, followed by plenty of sunshine and pleasant temperatures on Sunday.
A cold front will gradually move across during the afternoon hours with VFR conditions quickly developing behind the front and after 24/18Z at all terminals. The actual cold front/dryline feature will not arrive and move across the forecast area until this afternoon. High pressure will then build into the forecast area with rather cool night, followed by plenty of sunshine and pleasant temperatures on Sunday.
Gradient to relax a bit tonight as a cold front approaches E Gulf waters and Florida Peninsula tonight. /issued 357 AM EDT Sat Apr 24 2021/ A cold front is just starting to form over in Texas. Next work week in generally is looking pretty quiet as high pressure settles back in across the state with plenty of sunshine.
(Today and tonight) Cold front working its way through the area early this morning, and will continue south and out of the area by mid morning. Temperatures will be a little cooler today with highs ranging from the mid 70s across the Big Country to lower 80s along I- 10. High pressure shifts east and surface winds being to swing around to the southeast overnight.
740 AM EDT Sat Apr 24 2021 It will remain dry and be even warmer today before some rain showers occur late tonight into Sunday as a cold front crosses the region.
632 AM CDT Sat Apr 24 2021 11Z surface analysis placed high pressure center over central/eastern Dakotas. On GOES-16 Nighttime Microphysics RGB fog was detected through the lower elevations of central South Dakota, possibly into far south central North Dakota where Linton has reported visibility down to 2 1/2 miles. This morning, height rises and a mid-level ridge will move over the region as flow aloft becomes anti-cyclonic. Warmer and partly cloudy today, with still below normal highs in the upper 40s to low 50s in the post-frontal air mass. Coinciding with a warm front approaching the southern North Dakota border, precipitation associated with isentropic lift north of the front should develop light rain and snow, spreading north through the day Sunday.
Latest short range ENS/HREF guidance paints the highest POPs and heaviest rainfall totals across south central PA Saturday night into early Sunday morning where around 0.
1017 AM EDT Sat Apr 24 2021 Low pressure will track east through Kentucky into West Virginia today.
626 AM EDT Sat Apr 24 2021 It will remain dry and be even warmer today before some rain showers occur late tonight into Sunday as a cold front crosses the region.
1043 AM EDT Sat Apr 24 2021 Mean layer ridging persists over the Western Caribbean, although a little farther east than 24-hours ago. From synopsis, high pressure system near the Eastern Seaboard is producing fresh southeast breezes across our coastal waters.
/issued 316 AM CDT Sat Apr 24 2021/ Benign weather is expected today as a weak mid-level ridge builds into the CWA. 0630Z water vapor imagery analyzes the ridge axis over the Great Basin, with a fairly pronounced subsidence layer (also observed on the 24/00Z RAOBs from ABQ, EPZ, and FGZ) that is beginning to advect overhead.
Latest short range ENS/HREF guidance paints the highest POPs and heaviest rainfall totals across south central PA tonight into early Sunday morning, where around 0.
646 AM CDT Sat Apr 24 2021 It will be a pretty nice weekend, a bit cooler today with light winds, then 70s for highs on Sunday, but a little more breezy.
A cold front will sweep across the area, bringing and end to the chance for storms later this afternoon. /15/ By Sunday morning, all of the precipitation will be east of our region and high pressure will be wedging south into the region from the north.
334 AM MDT Sat Apr 24 2021 The current large scale flow pattern is from the northwest around the southern periphery of a large low pressure system centered over north-central Canada or just west of Hudson Bay.
411 AM CDT Sat Apr 24 2021 This morning, height rises and a mid-level ridge will move over the region as flow aloft becomes anti-cyclonic. Warmer and partly cloudy today, with still below normal highs in the upper 40s to low 50s in the post-frontal air mass. Coinciding with a warm front approaching the southern North Dakota border, precipitation associated with isentropic lift north of the front should develop light rain and snow, spreading north through the day Sunday.
522 AM MDT Sat Apr 24 2021 It will be drier today as the wave of a weak trough exiting the state. On Sunday, a flat upper level ridge will slide east of Colorado with flow aloft slowly backing to the southwest. At the surface, a lee side trough deepens across eastern Colorado.
It will be drier today as the wave of a weak trough exiting the state. On Sunday, a flat upper level ridge will slide east of Colorado with flow aloft slowly backing to the southwest. At the surface, a lee side trough deepens across eastern Colorado.
535 AM MDT Sat Apr 24 2021 A transitory ridge is building in across eastern Utah and western Colorado this morning, bringing warmer temperatures and mostly sunny skies with it.
Cloud cover across all of Middle TN has kept temperatures considerably warmer this morning than we've seen in the last few days.
Low pressure over AR will continue to move east away from the region.
Widespread precipitation associated with an incoming low pressure system will gradually impact the Northern Rockies throughout the day today.
We will end up a bit warmer this afternoon than yesterday, however, as many areas will reach into the lower 50s. 11Z surface analysis placed high pressure center over central/eastern Dakotas. On GOES-16 Nighttime Microphysics RGB fog was detected through the lower elevations of central South Dakota, possibly into far south central North Dakota where Linton has reported visibility down to 2 1/2 miles. This morning, height rises and a mid-level ridge will move over the region as flow aloft becomes anti-cyclonic. Warmer and partly cloudy today, with still below normal highs in the upper 40s to low 50s in the post-frontal air mass. Coinciding with a warm front approaching the southern North Dakota border, precipitation associated with isentropic lift north of the front should develop light rain and snow, spreading north through the day Sunday.
A cooler and wetter weather pattern will continue through the weekend.
639 AM CDT Sat Apr 24 2021 Cold front sliding across the local area this morning, with a smattering of light pcpn just ahead of it. A ripple in the upper level flow expected to move along with the warming, with some sloping frontogenetic lift added to the mix, extending NE from a sfc warm front. The better forcing is generally focused across MN into northwest WI, and thus so is the higher QPF.
Given that the warm front remains suppressed in southern MS and AL, the magnitude of airmass recovery remains in question. Temperatures will top out in the lower 70s on Sunday with abundant sunshine throughout the day.
Some of the sprinkles across central Illinois were dissipating as they approached Indiana, thanks to drier air in the lower levels. The inverted trough will bring some showers into mainly the northwest forecast area today. The upper trough will move into the area this afternoon. A cold front will move into the area tonight, but it will have little support. High pressure will build in on Sunday, providing a dry day with some sunshine. The period will begin with a broad, somewhat flat, upper ridge spread between the Rockies and the Appalachians.
Patchy fog developing across SE TX this morning (in the wake of the overnight storms and just ahead of the cold front/pre-frontal trof). Highs tomorrow are progged to be in the mid 80s with lows slightly warmer in the upper 50s and mid 60s.
An upper trough follows Sunday with additional showers.
The upper low continues to work its way east across the state early this afternoon. wrap around moisture will drop SE over the NRN half of the state under the main upper level trough/low. Expect primarily SHRA with maybe some isolated TSRA with this activity into the afternoon hrs before all precip ends late this afternoon and this evening as the trough exits the region. High pressure will move into the state by Sun morning.
252 PM EDT Sat Apr 24 2021 Surface analysis early this afternoon shows low pressure in place across Central Tennessee. allowing some dry air to arrive within the lower levels. allowing high pressure over the Plains states to build across the area overnight. Thus will trend for some low pops this afternoon and evening as the low departs. Meanwhile cool high pressure will be building across the surface and forecast soundings show a lack of moisture along with a mid level inversion that should prevent any convection. the models suggest broad ridging building aloft over the plains states with subsidence in place over the high valley.
Cold front pushes east of the region tonight as high pressure builds in from the west. Expect gradual clearing skies tonight as the high builds in and this will lead to chilly overnight low temperatures. Clouds will then overspread the area early in the day on Sunday as a trough dives into the pacific northwest and shunts a warm front and warm air advection eastward into the Upper Mississippi River Valley. Expect one more cooler day on Sunday with highs mainly in the 40s, but warmer air is on the way for the work week, behind the warm front.
Aloft, a mid-level trough accompanying the cold front will push across the region on Sunday before lifting off the north and east over the Atlantic away from the region late Sunday afternoon into the evening. While temperatures will be warmer than the seasonal averages, it may be several degrees below record values.
310 PM CDT Sat Apr 24 2021 Cold front moving through our IL counties with gusty NW winds in the wake of the front. 2) A chance of showers north and cooler. Details: Tonight: High pressure building into the cwa with a window of clear skies, light winds and very dry airmass. This should allow for widespread frost and near freezing temperatures. Some valley/low spots may actually drop just below freezing for several hours. Sunday: High pressure shifts east with warm air advection light showers possible in our north later in the morning into the early afternoon. Mostly cloudy and cooler with highs near 50 along Hwy 20 to the lower 60s south.
107 PM CDT Sat Apr 24 2021 It will be a pretty nice weekend, a bit cooler today with light winds, then 70s for highs on Sunday, but a little more breezy.
/issued 1042 AM CDT Sat Apr 24 2021/ A low pressure system currently located over Eastern Arkansas will continue to track across the area today. The highest totals have occurred over East Arkansas and the delta area of north Mississippi where 1 to 1. Even where the highest totals exist this accounts for only about 25% of flash flood guidance. The trough axis associated with this storm system should shift into middle Tennessee and Alabama mid afternoon resulting in even less chance of thunderstorms.
213 PM EDT Sat Apr 24 2021 Low pressure will track east through Kentucky into West Virginia today.
This helped create some hefty mesocyclones as storms tracked along the residual boundary laid out by the morning MCS. SBCAPE values continue to remain in the 2,000 to 4,000j/kg range, highest southwest where higher surface dewpoints in the lower to middle 70's overlap temperatures in the upper 70's to lower 80's.
As the upper trough moves toward the area late this afternoon and evening, another wave/jet streak will induce scattered convection over southern middle Tennessee/northern Alabama.
Intersecting the low is a warm front extending southeast, over the interior near US Hwy 84. A few tornadoes are also possible, especially closer to the warm front where horizontal rolls can be tilted and stretched in the vertical. Cold front looks to be crossing the I-65 corridor this evening. By late evening and overnight, the cold front will make complete passage with drier and cooler air filtering southward over the local area.
Much warmer temperatures are expected Sunday as warming from southwest downslope adiabatic heating kicks in over the area and dryline extends rapidly eastward to around the Highway 283 corridor in the afternoon.
231 PM CDT Sat Apr 24 2021 Clouds continue to clear the area this afternoon as the upper low that affected the area yesterday moves off to the east.
242 PM EDT Sat Apr 24 2021 Low pressure crosses south of the area today, bringing widespread rain midday through tonight. High pressure to start the next work week. Rain streaming in from the southwest will continue to overtake the forecast area this afternoon as low pressure ejects out of the Mississippi Valley. By daybreak, the bulk of the rain will have progressed into the Delmarva region, leaving us with residual showers along the higher terrain Sunday morning. High pressure passes just to north Sunday night amid a mainly clear sky and light flow.
Surface analysis suggests that the environment has recovered excellently across the CWA, with surface based CAPE values ranging from 2,000 to 4,000j/kg, highest where ample clearing occurred with surface temperatures reaching the lower 80's. Surface dew points continue to increase with warm air advection ongoing across the region, with dews increasing into the lower 70's for most. Given the high shear and high CAPE environment, large hail and damaging wind gusts are possible in any thunderstorm.
Behind the convection, the aforementioned upper trough, now located across Eastern Oklahoma, will continue to push eastward, with its trailing cold front making it into the region by mid morning. Can't rule out some wrap around showers near the upper trough across our far northern and northeasterly zones today, but the overall trend is for northwesterly flow in wake of the front to bring in much drier air to the region. Dry conditions to continue tonight as high pressure quickly settles over the region. Winds will diminish and temperatures will remain near seasonal normals, with overnight lows in the lower 50s. However, southerly winds will return as high pressure slides east of the region. This will result in slightly warmer conditions, with highs in the upper 70s to lower 80s.
This will usher warmer temperatures back into our region (highs in the mid 70s Sunday afternoon) as sustained surface winds increase to 15 to 25 mph Sunday afternoon.
301 PM EDT Sat Apr 24 2021 Warm front looks to be along or just north of the I-20 corridor. With some ascent provided by a 500mb trough/cold pool, do expect additional thunderstorms to develop. High pressure and dry conditions anticipated for the remainder of the short term period of the forecast. This ridge will be the primary weather inhibitor that keeps the area PoP free through the most of the extended.
1210 PM CDT Sat Apr 24 2021 (Today and tonight) Cold front working its way through the area early this morning, and will continue south and out of the area by mid morning. Temperatures will be a little cooler today with highs ranging from the mid 70s across the Big Country to lower 80s along I- 10. High pressure shifts east and surface winds being to swing around to the southeast overnight.