Aikyam-Lab/Synoptic-Bench huggingface dataset:
642 AM CDT Tue Apr 2 2024 Tuesday through Wednesday Night Scattered showers and isolated thunderstorms were ongoing during the predawn hours this Tuesday morning ahead of an approaching cold front. This activity was associated with a positively tilted upper trough sweeping across the region. Additional scattered showers and thunderstorms will be possible late this morning, mainly over the SErn half of AR, along and ahead of an advancing cold front. Temperatures across most of the state will be mild with readings in the 70s to lower 80s, but over NW AR, temperatures will fall as colder air sweeps into the region in the wake of the cold front. Heading into Wednesday, a highly amplified upper ridge is progged to move into the Rockies, providing Nrly upper low across the plains on the backside of the departing upper trough.
A cold front has passed through the county warning area as it pushes into eastern North Dakota. A cold front continues to move across the central portion of the state switching the wind out of the northwest. An upper level trough over Western CONUS will begin to push through the Southern Plains tomorrow. An upper level ridge will follow the wake of the upper level trough moving into the Northern Plains by the middle of the week resulting in warming trend. The upper level ridge will remain parked over the Plains this week due to an omega blocking pattern setting up over CONUS.
717 AM CDT Tue Apr 2 2024 (Today through Wednesday) Upper ridging is moving eastward as a trough is progressing into the area, extending from the Great Lakes down through Texas. At the surface, a cold front will begin cutting into the area later tonight making it through the coast by early Wednesday morning. Cooler and drier air will move in following the cold front, with morning lows in the 50s and afternoon highs Wednesday falling back into the mid 70s.
But, more convection is expected to develop across North-Central Louisiana along the pre-frontal trough just before the lunch hours. On the heels of this activity, a cold front will move into the region, with models suggesting the boundary should be through most of the area by sunset tonight. Northwest winds will bring a very noticeably cooler airmass into the region tonight, with lows falling into the 40s areawide. Winds are expected to taper down around daybreak Wednesday, but another longwave trough will push through the Southern Plains and Lower Mississippi Valley, bringing more gusty conditions.
(Frye) (Today through Wednesday) Upper ridging is moving eastward as a trough is progressing into the area, extending from the Great Lakes down through Texas. At the surface, a cold front will begin cutting into the area later tonight making it through the coast by early Wednesday morning. Cooler and drier air will move in following the cold front, with morning lows in the 50s and afternoon highs Wednesday falling back into the mid 70s.
Severe thunderstorms are possible this afternoon and evening ahead of a strong cold front.
All of this being caused by an upper-level wave approaching from North Dakota as well as low pressure off to our south in the central plains which is progged to track NE. Winds will continue to increase Tuesday night into Wednesday as the the trough to our north continues to dive over the Ohio River Valley. Given the strength of this trough, wind headline issuance for Wednesday afternoon are growing increasingly likely as wind gusts may reach near 40 mph south and east of a line that extends from Ladysmith, WI to New Ulm, MN.
Low pressure will drop south through Minnesota today. A cold front has passed through the county warning area as it pushes into eastern North Dakota. A cold front continues to move across the central portion of the state switching the wind out of the northwest. An upper level trough over Western CONUS will begin to push through the Southern Plains tomorrow. An upper level ridge will follow the wake of the upper level trough moving into the Northern Plains by the middle of the week resulting in warming trend. The upper level ridge will remain parked over the Plains this week due to an omega blocking pattern setting up over CONUS.
5 km drop just below freezing. This should allow a rain/snow mix to develop in the highway 20 corridor west of Dubuque that slowly expands south and east to highway 30 through late afternoon. Currently road temperatures are well above freezing and will likely remain that way through the day. Wet bulb zero temperatures drop well below freezing at 0. 5 km with surface wet-bulb temperatures dropping to freezing, indicating a complete change over to all snow will occur. Thus until the ground and road temperatures cool to freezing, the snow will continue to melt on contact. An educated guess is that ground and road temperatures will probably reach freezing some point after midnight.
As a cold front approaches the lower Mississippi Valley, showers and thunderstorms are expected to return to the CWA. Ahead of the cold front, afternoon temperatures will remain above normal reaching the upper 70s to middle 80s. In addition to warmer temperatures, 40-60 kt deep layer shear, mid- level lapse rate near 7.
639 AM CDT Tue Apr 2 2024 (Today and tonight) A strong cold front continues to push through West Central Texas this morning, shifting winds to the north and filtering drier and cooler air to the area. High temperatures will struggle to make it out of the lower to mid 60s in the Big Country, and in the mid 60s to lower 70s across the remaining portions of West Central Texas today.
1056 AM EDT Tue Apr 2 2024 High pressure will remain across the region today through tonight.
(Today through Wednesday) Low pressure is currently across central MO with a cold front stretching down through far eastern TX. A warm front stretches east from the low center to the coast of the Carolinas. However, some isolated higher gusts are possible at the highest elevations.
Mean-layer ridging centered over the northern portions of the Western Caribbean remains in control of the sensible weather across the Florida Keys this morning. A cold front and squall line are making steady progress eastward over the Heartland and northern Gulf coast. Moderate mainly southeast breezes will slacken briefly this afternoon, then freshen from the south tonight, as high pressure continues pushing further offshore into the Atlantic. Moderate to fresh breezes will veer to the south to southwest on Wednesday, as another late season cold front pushes across the Gulf of Mexico.
There may be a few showers over the mountains this afternoon, otherwise dry and warmer conditions will prevail across the region through Wednesday.
(Today through Wednesday) A cold front currently moving into the Rio Grande Plains is expected to push through the Rio Grande Valley just before Daybreak. However, the cooler air will be delayed and not arriving until tonight. A surge of high pressure will arrive tonight bring an increase in winds and cooler air into the region. Lows tonight will range from the low to mid 50s across the Brush Country and the Rio Grande Plains to the upper 50s to the lower 60s across the Rio Grande Valley and along the coast. A dry and tranquil weather is expected on Wednesday with highs in the upper 70s to the lower 80s under sunny skies.
A strong trough of low pressure aloft extends from south central Canada southwest all the way through the Desert Southwest into the eastern Pacific Ocean off Baja California. The trough closes off into a deep low over the Midwest tonight and it spends the rest of the week meandering eastward and finally off the Atlantic Coast this weekend.
605 AM CDT Tue Apr 2 2024 Severe thunderstorms are possible this afternoon and evening ahead of a strong cold front.
327 AM MDT Tue Apr 2 2024 - High pressure brings warming temperatures and dry conditions through the workweek.
- Showers and thunderstorms today A low pressure system centered over northern Missouri early this morning will strengthen significantly as it moves ne to over Lake MI late tonight. - Light precipitation lingers mid to late week The change in the models tonight is to linger the upper low over the Great Lakes region a bit longer now.
High pressure will maintain mostly sunny/clear skies, dry conditions, and relatively light winds today. Our warming trend also continues, with high temps forecast to range from near 50 to the low 60s for most population centers. Our next multi-day low pressure storm system will approach the PacNW coast Wed, increasing southerly winds across the CWA Wed afternoon/eve.
523 AM EDT Tue Apr 2 2024 A warm front in the area will keep precipitation going through Wednesday while a coastal low develops mid week to bring a chance of late season accumulating snow to upstate NY with mostly rain for northeast PA.
By Wednesday morning, a closed upper low moves eastward through the southern Great Lakes region with upper troughing extending south through the Mississippi River Valley. On the surface, an area of low pressure spins over the central Great Lakes. An occluded front extends from this low to a triple point low over the mid-Atlantic states. A cold front extends southward along the eastern seaboard and will move across the Florida peninsula on Wednesday.
Look for warming and dry conditions through tomorrow due to building high pressure.
(Today through Wednesday) Upper ridging is moving eastward as a trough is progressing into the area, extending from the Great Lakes down through Texas. At the surface, a cold front will begin cutting into the area later tonight making it through the coast by early Wednesday morning. Cooler and drier air will move in following the cold front, with morning lows in the 50s and afternoon highs Wednesday falling back into the mid 70s.
Temperatures are in the 80s and dewpoints are in the lower to mid 70s. Water vapor imagery highlights a large mean-layer ridge centered over the extreme western Caribbean. Since this morning, there are signs of flattening across the northern flank of this ridge as lower heights nudge eastward across the Plains. GOES TPW loops place a meager increase in moisture rounding the low-level ridge near the base of the Yucatan Channel. A cold front (yes, another one) will spread southeast through the eastern Gulf of Mexico and Florida on Wednesday.
Relative humidity values have dropped below 30% across much of the region associated with a cold front. Cooler tonight with lows mainly in the 50s.
(Tonight) As an upper level trough moves eastward through the Mississippi Valley this evening, chances for severe storms throughout northern AL and southern middle TN are forecast to increase. Heading into the late afternoon and evening hours, the vorticity advection and height falls coupled with the upper level trough will support synoptic forcing for lift. Due to a tight sfc pressure gradient behind the front as high pressure filters in, a gradient (non-thunderstorm) wind threat will also be occurring in addition to the severe threat.
A trough ejecting out of Manitoba will phase with the southern stream energy from today's event developing into a large upper low centered near Chicago Wednesday morning. A lobe of energy will rotate around the base of the upper low on Wednesday sparking showers over our area.
1211 PM CDT Tue Apr 2 2024 (Today and tonight) A strong cold front continues to push through West Central Texas this morning, shifting winds to the north and filtering drier and cooler air to the area. High temperatures will struggle to make it out of the lower to mid 60s in the Big Country, and in the mid 60s to lower 70s across the remaining portions of West Central Texas today.
(Tonight through Wednesday night) A cold front moved through this morning, producing breezy to windy and gusty northwest winds. Otherwise, expect high pressure to spread over the area in the short term. Look for mostly clear to clear skies with lighter winds shifting to southeast and south Wednesday night as high pressure shifts east and upstream ridging drifts east toward Texas. Look for low temps tonight from the 50s to lower 60s, mainly lower 80s for inland high temps on Wednesday, and slightly cooler lower to mid 50s Wednesday night.
High pressure will begin to flatten over western Montana and north central Idaho tonight as a low pressure system digging southward along the west coast pushes a southwest flow aloft into the region. A cold front will move into the region tomorrow, stalling across west central Montana, generally along a line from Great Falls, MT to Hamilton, MT to Grangeville, ID. Along and northwest of this line, cooler, wet and breezy conditions are anticipated.
201 PM EDT Tue Apr 2 2024 A strong cold front will track across the region tonight into Wednesday.
Cooler on Wednesday with scattered rain showers beneath the upper low. Current observations show dew points in the low to mid 60s across the Tennessee Valley with a general surge northward through the evening as southwesterly flow increases across the area. Behind the departing storms tonight, a cold front moves across the area with much cooler air for Wednesday as an upper low settles across the region. Some light snow showers will be possible across the highest elevations of the mountains into Wednesday night, but impacts appear minimal. Cooler conditions behind this weeks frontal passage, with temperatures near freezing for many locations the second half of the week.
(Tonight through Wednesday night) Key Messages: - Elevated Fire Weather Conditions across much of the region today - Small Craft Advisory in Effect through tomorrow morning There's currently a mid-level low over northern Minnesota with a trough extending across the Plains and down to west Texas. Afternoon temperatures today will top out in the 80s across the region and looks to be about 5 degrees cooler tomorrow. Overnight lows tonight and tomorrow night will bottom out in the low to mid 50s.
Current upper air models and Water Vapor show upper ridge over the western CONUS, while upper low and trough sits over the Great Lakes and mid-west region, with northwest flow aloft our region. At the surface, cold front runs from MN into eastern SD, while high pressure sits over the MT/ND border. Temperatures this afternoon sit in the low to mid 50s for the upper half of our CWA, while the more snow covered lower half are seeing mostly 40s with snow melting off quick. Upper ridge will move over the region tonight into Wednesday, bringing warmer and dry conditions through the work week.
255 PM CDT Tue Apr 2 2024 - Dry and trending warmer through the end of the week. There is a small signal fog some fog tonight from the western sandhills into the northern panhandle but otherwise, building high pressure surface and aloft will continue our stretch of quiet and dry weather for the next several days, though winds will still be gusty tomorrow especially east of Hwy 83. With warmer air surging into the region from the southwest, highs tomorrow will range form the lower 60s from the panhandle across southwest Nebraska, but will only be in the upper 40s further to the northeast up toward O'Neill. Ensemble guidance is in good agreement in building a large highly amplified ridge over the western US with dry and warm conditions expected through the end of the workweek.
(This evening through Wednesday Night) A cold front continues to bisect the region this afternoon as it gradually ushers in noticeably milder and drier air in its wake. Convection remains well out ahead of the front, generally invof of the initial sfc boundary which acted more as a pre-frontal trough. Behind the true cold front, abundant stratocu is noted on visible satellite as the flow remains SWly just above the sfc due to the lagging upper-level trough to our W/NW. Eventually, these clouds will diminish through the evening and overnight hours along with the gusty W/NW winds behind the cold front. The more consequential impact will be the resurging NW winds in the wake of the advancing cold front to our east and advancing high pressure to our north and west.
Looking at the current satellite imagery, high pressure is firmly in place over our area with the ridge axis directly over the Central part of Idaho. There is a trough off the Pacific coast of Washington and Oregon.
1216 PM CDT Tue Apr 2 2024 Tuesday through Wednesday Night Scattered showers and isolated thunderstorms were ongoing during the predawn hours this Tuesday morning ahead of an approaching cold front. This activity was associated with a positively tilted upper trough sweeping across the region. Additional scattered showers and thunderstorms will be possible late this morning, mainly over the SErn half of AR, along and ahead of an advancing cold front. Temperatures across most of the state will be mild with readings in the 70s to lower 80s, but over NW AR, temperatures will fall as colder air sweeps into the region in the wake of the cold front. Heading into Wednesday, a highly amplified upper ridge is progged to move into the Rockies, providing Nrly upper low across the plains on the backside of the departing upper trough.
1233 PM CDT Tue Apr 2 2024 Cold front has moved through the region this morning with cool/ breezy conditions.
330 PM CDT Tue Apr 2 2024 - Additional storm development remains possible through the afternoon, mainly east of the Mississippi River and in far southeast SEMO, as the cold front passes.
1123 AM MDT Tue Apr 2 2024 - High pressure will bring drier and warmer weather area-wide through midweek.
(This evening through Wednesday night) Upper trough late this afternoon extended from the western Great Lakes to west Texas, with upper ridging along both the Atlantic and Pacific coasts. At the surface, a cold front extended from near Memphis to near Lake Charles. There was an area of comparatively drier air over about the northwest third of the CWA at 3 PM where dew points were in the mid 60s, which could be inhibiting convection a bit, with dew points in the lower 70s elsewhere.
1026 AM MDT Tue Apr 2 2024 - High pressure brings warming temperatures and dry conditions through the work week.
Looking at the current satellite imagery, high pressure is firmly in place over our area with the high pressure ridge axis directly over the Central part of Idaho. There is a trough off the Pacific coast of Washington and Oregon currently.
Surface winds will turn to the west overnight and will be much lighter but still may help keep temperatures a bit warmer with some weak downslope flow resulting in lows in the 30s and 40s with a few of the usual cold spots getting close to or dropping below the freezing mark.
1041 AM CDT Tue Apr 2 2024 Cold front has moved through the region this morning with cool/ breezy conditions.
320 PM EDT Tue Apr 2 2024 A cold front will be moving through the area tomorrow, with a few showers and storms pushing into the northern Nature Coast pre-dawn ahead of the front, and some low clouds/fog possible across the rest of the area. Conditions clear out overnight, with cooler and drier air moving into the state under high pressure.
Tonight and Wednesday: The low pressure system in northern Illinois is bringing some wrap around snow showers to Northwestern Wisconsin as well as the Twin Ports. With the heavier snowfall offset from the higher winds, have decided to hold off on a Blizzard Warning for Bayfield, Ashland, and Iron counties and kept the Winter Storm Warnings in effect for now.
Much of available guidance appears to have backed off a bit from peak wind gust potential with majority of model soundings depicting top of mixed layer winds in the lower 50s kts versus around 60 kts in previous runs. While did not hoist a High Wind Warning area, would not be terribly surprised to see a few sporadic Warning level winds in/around the NE CWA where guidance pegs the highest opportunity (20-40%). Rest of the week will be highlighted by gradually building upper level heights and ridging that will yield slowly warming temperatures with seasonable highs in the 50s to low 60s. Additional precipitation chances return late in the weekend as next western CONUS trough crosses the Rockies and enters the Plains.
1156 AM CDT Tue Apr 2 2024 (Today through Wednesday) A cold front currently moving into the Rio Grande Plains is expected to push through the Rio Grande Valley just before Daybreak. However, the cooler air will be delayed and not arriving until tonight. A surge of high pressure will arrive tonight bring an increase in winds and cooler air into the region. Lows tonight will range from the low to mid 50s across the Brush Country and the Rio Grande Plains to the upper 50s to the lower 60s across the Rio Grande Valley and along the coast. A dry and tranquil weather is expected on Wednesday with highs in the upper 70s to the lower 80s under sunny skies.
Wednesday will be a transition day as cooler temperatures, light rain, and gusty winds move into the area.
617 PM CDT Tue Apr 2 2024 - Dry and trending warmer through the end of the week. There is a small signal fog some fog tonight from the western sandhills into the northern panhandle but otherwise, building high pressure surface and aloft will continue our stretch of quiet and dry weather for the next several days, though winds will still be gusty tomorrow especially east of Hwy 83. With warmer air surging into the region from the southwest, highs tomorrow will range form the lower 60s from the panhandle across southwest Nebraska, but will only be in the upper 40s further to the northeast up toward O'Neill. Ensemble guidance is in good agreement in building a large highly amplified ridge over the western US with dry and warm conditions expected through the end of the workweek.
1007 PM EDT Tue Apr 2 2024 A strong low pressure system will move northeast to southern Lake Michigan tonight. A cold front trailing from this low will move east across the region, bringing a period of showers and thunderstorms along and ahead of it.
223 PM PDT Tue Apr 2 2024 High pressure will stick around for one more day today and bring another quiet day to the region.
High pressure is building into the area this afternoon. Temperatures will be moderating today into tomorrow as the ridge moves east. Wednesday will be warmer and totally dry with lighter winds expected.
637 PM CDT Tue Apr 2 2024 (This evening through Wednesday night) Upper trough late this afternoon extended from the western Great Lakes to west Texas, with upper ridging along both the Atlantic and Pacific coasts. At the surface, a cold front extended from near Memphis to near Lake Charles. There was an area of comparatively drier air over about the northwest third of the CWA at 3 PM where dew points were in the mid 60s, which could be inhibiting convection a bit, with dew points in the lower 70s elsewhere.
High pressure will remain in place through at least Wednesday, bringing warm and dry weather throughout the area.
838 PM EDT Tue Apr 2 2024 A strong low pressure system will move northeast to southern Lake Michigan tonight. A cold front trailing from this low will move east across the region, bringing a period of showers and thunderstorms along and ahead of it.
There were still some gusty winds around in the wake of the cold front that was nearly along the Natchez Trace. The cold front will continue to move through the remainder of the CWA tonight and usher in cooler and drier air. By morning cooler than normal temperatures are expected.
639 PM CDT Tue Apr 2 2024 (Tonight through Wednesday night) A cold front moved through this morning, producing breezy to windy and gusty northwest winds. Otherwise, expect high pressure to spread over the area in the short term. Look for mostly clear to clear skies with lighter winds shifting to southeast and south Wednesday night as high pressure shifts east and upstream ridging drifts east toward Texas. Look for low temps tonight from the 50s to lower 60s, mainly lower 80s for inland high temps on Wednesday, and slightly cooler lower to mid 50s Wednesday night.