Aikyam-Lab/Synoptic-Bench huggingface dataset:
Aloft, a ridge will shift eastward as a trough enters the southeastern United States. The easterly to southeasterly wind flow will continue but with the gradient diminishing as the high weakens and the trough moves closer, the speed will also diminish.
329 PM EDT Mon Apr 29 2024 High pressure will prevail through much of the week.
1237 PM CDT Mon Apr 29 2024 - Localized freezing rain is expected for the higher terrain of the North Shore this morning (total ice accumulations around 0.
358 PM EDT Mon Apr 29 2024 Showers and some thunderstorms will occur tonight into Tuesday ahead of a cold front that will cross the region. High pressure will then build in for the middle of the week with the return of much above normal temperatures.
1141 AM MDT Mon Apr 29 2024 - Another afternoon of isolated showers and thunderstorms, spreading east with a cold front this evening.
Scattered showers and thunderstorms will continue through this evening as a cold front moves across the region.
1232 PM PDT Mon Apr 29 2024 Mild temperatures and increased breezes are in store today with cooler conditions near the Oregon border.
100 PM CDT Mon Apr 29 2024 Weak upper-level ridging to continue to force any lingering convection east of the region through the afternoon. However, shallow stratus deck will linger across the entire area through late morning with the expectation that diurnal mixing will help to erode the low cloud deck and allow some sunshine to break through. The Southern Plains returns to southwest flow aloft with a developing longwave trough carving its way into the Intermountain West. This flow will only amplify as strong upper ridging remains anchored across the Southeast U.
Through Tuesday Night: A cold front will move across the area late this afternoon into early this evening with a chance of showers through sunset, ending from west to east with the cold front. Highs will rebound well into the 70s for Tuesday with a lake breeze expected, which will likely move inland in the late afternoon and early evening before dissipating, turning temps cooler behind it. Another cold front will move across the area Tuesday night.
Warmer temperatures are anticipated over the next several days with highs rising into the low to mid 90s across the lower deserts. An upper level trough will pass through the Intermountain West mid-week resulting in breezy conditions across southcentral AZ and southeast CA. Latest mid-lvl wv imagery and 500 mb streamline analysis reveals broad longwave troughing over the central U. As we head through today, upper level flow will transition to quasi-zonal as another trough enters the Pacific NW.
An upper trough will approach from the west late tonight and into Tuesday morning. As the day progresses the southern end of this wave attempts to transition to a closed low, likely slowing down the departure of rainfall tomorrow. I'm very confident showers will be around later in the day, just not so much on whether the coverage will be great enough to warrant the high rain chances.
111 PM EDT Mon Apr 29 2024 High pressure will prevail through much of the week.
218 PM EDT Mon Apr 29 2024 High pressure will result in dry weather and unseasonably warm temperatures today, then a low pressure system will push a cold front through the region on Tuesday, bringing a chance of showers and thunderstorms.
This evening and tonight: The low pressure center is making its way over the Northland, and is bringing the last round of showers from this system this afternoon and evening. Like last night, far northern portions of our area could see some mixed precipitation as lows tonight will be around freezing.
While it'll be a gorgeous day today, the dryline will sharpen up tomorrow as southerly surface flow in response to lee troughing helps usher in low-level moisture to the eastern CWA.
Although it's a few days before our official start of Frost/Freeze products, given the warmer temps the past few weeks and ongoing agricultural interests across the area already, felt it prudent to issue a freeze warning accordingly. Most of the region should drop below freezing tonight. Temps will be cooler tomorrow with 40s and 50s in place across the region.
(This evening through Tuesday Night) Weak upper-level ridging to prevail through the short-term period allowing for dry conditions areawide. High temperatures are forecast to climb into the 80s on Tuesday, falling into the low to mid 60s on Tuesday night.
The front associated with the low pressure will approach the Oklahoma border tomorrow afternoon and evening, providing a potential focus for thunderstorms in parts of northeast Oklahoma late afternoon and evening.
120 PM EDT Mon Apr 29 2024 Today remains dry and sunny due to offshore high pressure.
314 PM EDT Mon Apr 29 2024 High pressure will remain anchored offshore through mid week. A cold front will impact the area late in the week. Mid-level ridge remains overhead today as high pressure centered over the Atlantic extends onshore. Eastern NC will remain under the influence of the ridge into Tuesday evening, keeping conditions dry but with increasing high clouds as upper level moisture increases. Temperatures will be a degree or two warmer than today, in the low to mid 80s inland.
144 PM EDT Mon Apr 29 2024 High pressure will prevail through much of the week.
138 PM CDT Mon Apr 29 2024 - Showers/storms will precede a cold front's passage tonight.
High pressure east Carolina coastline will continue to dominate the region today, as it has for the past few days. Little change to the sensible weather is expected today from what we have been seeing, as a southerly flow will provide warm temperatures in the lower 80s for most spots. Ongoing convection from Lake Michigan to the Ozarks is occurring along a pre-frontal trough that will make its way east through the day and tonight.
These enhanced winds will subside when the low moves eastward out of our area late tonight into tomorrow morning. A wind advisory is in effect for the entire land area as this enhanced low pressure moves eastward.
High pressure in the Atlantic remains in control with its associated ridge axis north of the area.
152 PM EDT Mon Apr 29 2024 High pressure remains through today keeping conditions mostly dry with hot, summerlike temperatures this afternoon. A cold front approaches from the west Tuesday morning. This will allow a cold front to approach from the northwest early Tuesday morning. The front briefly stalls across our north Tuesday evening, before lifting north as a warm front.
200 PM EDT Mon Apr 29 2024 A cold front will cross Lower Michigan tonight before slowly making its way across our forecast area on Tuesday.
124 PM EDT Mon Apr 29 2024 High pressure will remain anchored offshore through mid week. A cold front will impact the area late in the week. Quiet weather pattern persists across the Carolinas this morning as upper level ridge axis remains centered overhead and Atlantic high pressure extends inland from the Atlantic. Mid/upper level ridging remains overhead tonight, with a continued southwesterly flow helping support mild, above normal, overnight temperatures. The orientation of the high offshore will support a moistening southwesterly flow, with dewpoints forecast to rise into the low 60s through the night.
Until these erode this afternoon, temperatures will be 5-10 degrees cooler beneath the clouds. Otherwise, most areas will see sunny skies by mid afternoon with temperatures in the lower 80s. Latest model guidance does suggest that our ridging will pass to the east late in the day and weak ascent will overspread the Plains.
Upper low spinning over central MN continues to lift northeastward this afternoon, and should be in Ontario by tonight. This should allow some brief ridging to move in between systems. Weak surface ridging over the CWA will slowly give way so southeasterly winds at least on the ND side.
This will keep temperatures warmer across the Rolling Plains and far southeastern Texas Panhandle in the mid 50s to lower 60s while on the Caprock overnight temperatures will drop into the upper 40s to mid 50s. However, with temperatures warming into the lower 90s for much of the area this will be sufficient for thunderstorm development as it will be nearly uncapped with convective temperatures around 90 degrees. Assuming the higher dewpoints remain, the environment will be characterized by around 2000 J/Kg of MLCAPE along with around 30 kts of bulk shear hence supercells would be the favored storm mode with large hail and damaging winds the primary threat assuming that destructive storm interference doesn't occur.
A weak U/L trough will push across the Florida peninsula tomorrow. High pressure in the Atlantic remains in control with its associated ridge axis north of the area.
High pressure is building in from the west and winds have already gone light across much of the region. Scattered showers and thunderstorms will continue through this evening as a cold front moves across the region.
Both regimes are occurring within a region of deep/moist SSW flow, well ahead of a weak cold front that should drift slowly southeastward across the Mid-MS Valley and into southwestern KY/northwestern TN by 12Z as the decaying cyclone that it is attached to lifts northeastward across Lake Superior. Aside from minor updates to the POP/weather grids, other elements of the forecast appear to be on track at this time, with lows in the lower 60s.
As the upper low slowly departs our region we are still seeing some spotty drizzle that may continue for the next hour. Upper low spinning over central MN continues to lift northeastward this afternoon, and should be in Ontario by tonight. This should allow some brief ridging to move in between systems. Weak surface ridging over the CWA will slowly give way so southeasterly winds at least on the ND side.
In advance of this trough axis, a band of showers and a few embedded thunderstorms currently moving through the western portion of the CWA will continue to advance eastward across the remainder of Lower Alabama and the western Florida Panhandle tonight into tomorrow morning. Given this have stuck with NBM deterministic output which puts lows in the low to mid 60s for tonight.
926 PM EDT Mon Apr 29 2024 Rain chances increase early Tuesday morning with an approaching trough. KEY MESSAGES: - Dry, quiet weather is expected through midnight under high pressure. - Precipitation chances increase early Tuesday with an approaching trough from the west. Previous Discussion: Eastern CONUS ridge will remain positioned just off the east coast and residing over the region today as an upper level low lifts toward the western Great Lakes. This will of course impact the low temperatures across the region as well. ---------------------------------------------------------------- Upper level trough will weaken as it slowly crosses the region on Tuesday. This loss in amplitude will result in a slower crossing of a weak surface cold front.
During the day tomorrow, the mean 850-700mb trough hangs out in the high plains as a potent upper trough crosses the north-central plains tomorrow.
701 PM CDT Mon Apr 29 2024 (Tonight) Cloud cover continues to overspread the Tennessee Valley region this afternoon ahead of an approaching cold front from the west.
212 PM MST Mon Apr 29 2024 Warmer temperatures are anticipated over the next several days with highs rising into the low to mid 90s across the lower deserts. An upper level trough will pass through the Intermountain West mid-week resulting in breezy conditions across the region. Temperatures will respond accordingly as afternoon highs warm up several degrees above normal in the lower 90s.
635 PM EDT Mon Apr 29 2024 Rain chances increase early Tuesday morning with an approaching trough. KEY MESSAGES: - Dry, quiet weather is expected through midnight under high pressure. - Precipitation chances increase early Tuesday with an approaching trough from the west. Previous Discussion: Eastern CONUS ridge will remain positioned just off the east coast and residing over the region today as an upper level low lifts toward the western Great Lakes. This will of course impact the low temperatures across the region as well. ---------------------------------------------------------------- Upper level trough will weaken as it slowly crosses the region on Tuesday. This loss in amplitude will result in a slower crossing of a weak surface cold front.
1035 PM EDT Mon Apr 29 2024 A cold front will cross Lower Michigan tonight before slowly making its way across our forecast area on Tuesday.
613 PM CDT Mon Apr 29 2024 Scattered showers and thunderstorms will continue through this evening as a cold front moves across the region.
725 PM EDT Mon Apr 29 2024 Showers and some thunderstorms will occur tonight into Tuesday ahead of a cold front that will cross the region. High pressure will then build in for the middle of the week with the return of much above normal temperatures.
1006 PM EDT Mon Apr 29 2024 High pressure remains through today keeping conditions mostly dry. A cold front approaches from the west Tuesday morning. This will allow a cold front to approach from the northwest early Tuesday morning. The front briefly stalls across our north Tuesday evening, before lifting north as a warm front.
13 (This evening through Tuesday Night) Weak upper-level ridging to prevail through the short-term period allowing for dry conditions areawide. High temperatures are forecast to climb into the 80s on Tuesday, falling into the low to mid 60s on Tuesday night.
Sfc winds become light out of the south across our western-most zones later tonight, and this may hold temps slightly warmer than the rest of the FA. where dew point depressions & winds will be the lowest and overlap with the axis of heavier rainfall from the past few days. The front associated with the low pressure will approach the Oklahoma border tomorrow afternoon and evening, providing a potential focus for thunderstorms in parts of northeast Oklahoma late afternoon and evening.
721 PM EDT Mon Apr 29 2024 High pressure will prevail through much of the week.
737 PM EDT Mon Apr 29 2024 High pressure remains through today keeping conditions mostly dry. A cold front approaches from the west Tuesday morning. This will allow a cold front to approach from the northwest early Tuesday morning. The front briefly stalls across our north Tuesday evening, before lifting north as a warm front.
913 PM EDT Mon Apr 29 2024 Showers and some thunderstorms will occur tonight into Tuesday ahead of a cold front that will cross the region. High pressure will then build in for the middle of the week with the return of much above normal temperatures.
A cold front will cross northern Utah and southwest Wyoming through the early evening before stalling over central Utah.
Lows tonight will fall into the low 60s for most of the area.
541 PM CDT Mon Apr 29 2024 - Showers/storms will precede a cold front's passage tonight.
806 PM EDT Mon Apr 29 2024 High pressure will result in dry weather and unseasonably warm temperatures today, then a low pressure system will push a cold front through the region on Tuesday, bringing a chance of showers and thunderstorms.
1021 PM EDT Mon Apr 29 2024 High pressure will prevail through much of the week.
UPDATE As the upper low slowly departs our region we are still seeing some spotty drizzle that may continue for the next hour. Upper low spinning over central MN continues to lift northeastward this afternoon, and should be in Ontario by tonight. This should allow some brief ridging to move in between systems. Weak surface ridging over the CWA will slowly give way so southeasterly winds at least on the ND side.
633 PM CDT Mon Apr 29 2024 (This evening through Tuesday Night) Weak upper-level ridging to prevail through the short-term period allowing for dry conditions areawide. High temperatures are forecast to climb into the 80s on Tuesday, falling into the low to mid 60s on Tuesday night.
00Z Aviation Discussion Warmer temperatures are anticipated over the next several days with highs rising into the low to mid 90s across the lower deserts. An upper level trough will pass through the Intermountain West mid-week resulting in breezy conditions across the region. Temperatures will respond accordingly as afternoon highs warm up several degrees above normal in the lower 90s.
The easterly breezes diminished this afternoon and evening as the high over the western North Atlantic lost latitude. Plan views suggest an implied low-level inverted trough lingering across the Bahama Banks and the Keys over the next couple of days, likely due to the lower heights aloft noted on water vapor imagery. High pressure will meander in the western North Atlantic about halfway between the northwestern Bahamas and Bermuda through mid- week. As this high weakens slowly, east to southeast breezes will slacken to gentle to moderate. This high will result in undulations in the northeast to east breezes late week and into the weekend.
An upper trough remains overhead with a few snow showers continuing early this morning.
Zonal flow is in place over the Desert SW with a weak lee trough over NE NM. We will see more of the same tomorrow though with a modest increase in winds thanks to the low over NE NM deepening a few mb. Winds increase further as the trough sharpens over the Western CONUS. That trough passes and we go from quasi-zonal flow to SW'LY flow aloft by this weekend.
An upper level trough is centered over the Northern Plains/Upper Midwest. The previously mentioned upper trough will lift northward over Canada on Tuesday with another upper trough over the Pacific Northwest and northern Rocky Mountains. This trough will expand southward over Nebraska with a cold front moving into the area on Tuesday. Temperatures ahead of the front are expected to warm up into the lower 70s to mid 80s. Showers and thunderstorms are expected to develop during the afternoon and evening hours along the cold front. Low temperatures are expected to cool into the lower 40s to lower 50s Tuesday night with easterly winds. Rain and storms are expected to continue into the afternoon hours (up to near a 60% chance) as an upper trough to the west begins to move over the region.
Fairly weak shear and low coverage of the strongest storms should keep the severe weather threat on the low side.
221 AM EDT Tue Apr 30 2024 Rain chances increase early Tuesday morning with an approaching trough. KEY MESSAGES: - Dry, quiet weather is expected through midnight under high pressure. - Precipitation chances increase early Tuesday with an approaching trough from the west. Previous Discussion: Eastern CONUS ridge will remain positioned just off the east coast and residing over the region today as an upper level low lifts toward the western Great Lakes. This will of course impact the low temperatures across the region as well. ---------------------------------------------------------------- Upper level trough will weaken as it slowly crosses the region on Tuesday. This loss in amplitude will result in a slower crossing of a weak surface cold front.
Highs Wednesday afternoon will be in the low to mid 80s.
06Z Aviation Discussion Warmer temperatures are anticipated over the next several days with highs rising into the low to mid 90s across the lower deserts. An upper level trough will pass through the Intermountain West mid-week resulting in breezy conditions across the region. Temperatures will respond accordingly as afternoon highs warm up several degrees above normal in the lower 90s.
(Tuesday through Wednesday night) Tuesday, a weak upper level trough makes its way into the area providing some instability to the region. High pressure off the Atlantic coast will move further east through the week shifting winds to southerly and allowing the Gulf coast and Atlantic sea- breeze to make their way inland in the afternoon, converging along US 17. Temperatures will be in the mid to upper 80s inland staying cooler along the coast.
359 AM EDT Tue Apr 30 2024 - Dry and slightly cooler today.
Warmer than normal temperatures, mostly sunny skies, and afternoon breezes are on tap for the region today.
The low should continue to migrate into MOB's waters, but still over the last hour PQL gusted to 39kt. The good news is the strongest winds are migrating with the low downstream and we hope to take care of all the ongoing headlines over the next hour or two, especially the landbased headlines. These enhanced winds will subside when the low moves eastward out of our area late tonight into tomorrow morning. A wind advisory is in effect for the entire land area as this enhanced low pressure moves eastward. High temperatures tomorrow will be in the low to mid 80s with lows in the mid 60s.
High pressure will build in across the Mid-South for today and Wednesday with dry conditions and above normal temperatures each day.
A weak trough axis exists from Houston to the SE well offshore.
However, a back door cold front pushing into Eastern PA and the associated upsloping southeast flow could yield late night stratus over portions of Schuylkill County. focused during early afternoon over the NW Mtns, late afternoon over the central counties, and during the evening over the Lower Susq Valley. Given the low FFG values, can't rule out minor flooding in a few spots. Increasing cloud cover and showers should result in a cooler Tuesday for much of the area, especially over the NW Mtns where thick cloud cover will arrive early. Partly sunny skies, 850mb temps around 14C and a late day arrival of any showers should allow readings to reach the mid 80s over the Lower Susq Valley. We have leaned toward the lower NBM10pct dewpoints Wed afternoon based on dry air above a weak inversion in the model soundings.
This chance shoudl end after sunset once the trough moves east of the area and dry air aloft builds in.
123 AM EDT Tue Apr 30 2024 High pressure will prevail through much of the week. A weak disturbance will move through Tuesday and Wednesday, then a weak cold front will stall in the vicinity this weekend. Overall, the rest of overnight is expected to be quiet as the area remains under the influence of high pressure parked over the Atlantic.
- Cooler and unsettled weather develops for the latter part of the week into the first half of the weekend. Current surface analysis shows warm front moving slowly east across western SD this afternoon, with a cold front trailing across eastern MT and western WY. Upper level analysis shows low pressure over northern MN, with another across southern BC. Near zonal flow is in place across the Rockies to the high Plains. Temps are much milder this afternoon compared to the last couple of days, 60s in most areas, some 50s across the higher Black Hills. A little light snow could develop across the higher Black Hills early Tuesday.
The upper low currently centered over Thunder Bay Ontario will continue to drift east/northeast amid zonal flow. Despite strong warm air advection from 850-700mb we will remain north of the effective surface warm front which will set up from the ND/SD/MN border east into north central WI keeping us on the cooler side today with highs in the 50s to low 60s in the far south. 5 C/km and MUCAPE of 200-500 J/Kg could support some small hail though this is likely conditional upon the northward placement of the warm front and and afternoon heating at the surface during breaks in clouds which as mentioned before is expected to be limited. This wave continues east Tuesday night with another day in the low 60s Wednesday.
Sfc winds become light out of the south across our western-most zones later tonight, and this may hold temps slightly warmer than the rest of the FA. where dew point depressions & winds will be the lowest and overlap with the axis of heavier rainfall from the past few days.
(Today) Showers and embedded thunderstorms will continue to track east through the local area this morning, ahead of a weak cold front currently approaching the lower MS River Valley/lower OH River Valley.