Aikyam-Lab/Synoptic-Bench huggingface dataset:
948 AM EDT Mon May 13 2024 High pressure builds south of the Mid-Atlantic region through the day today. Unsettled weather returns through the middle of the week with a slow moving low pressure system. After brief ridging towards the end of the week, more unsettled weather returns for the weekend. An increase in clouds may occur briefly across the Poconos and northern NJ late in the day as a warm front lifts north across northern PA. Regardless, a pleasant day is expected with afternoon temps rebounding into the low to mid 70s as the upper ridge builds overhead. Fair weather continues into tonight as high pressure remains positioned offshore. Lows will be a bit warmer than this morning mainly in the 50s.
1012 AM EDT Mon May 13 2024 A warm front will brush northern PA on Monday before a cold front pushes through on Tuesday.
725 AM EDT Mon May 13 2024 (Today through Tuesday) The diffuse surface boundary that has lingered will give way to a small area of high pressure building off the Florida coast over the Atlantic.
714 AM EDT Mon May 13 2024 A warm front will brush northern PA on Monday before a cold front pushes through on Tuesday.
- Warmer than normal temperatures linger, before a cold frontal passage later today leads to more seasonal conditions this week. The pattern favors near normal temperatures Tuesday and beyond, though ensemble models differ on the extent of troughing and moisture available for continued shower/thunderstorm chances. Otherwise, look for scattered thunderstorms to develop behind a cold front this afternoon, primarily impacting KGGW and KOLF between 22-03Z.
620 AM CDT Mon May 13 2024 An upper low moving through the region will result in chances for showers and some thunderstorms through Tuesday.
657 AM EDT Mon May 13 2024 High pressure and dry air will move off to the east today.
An upper low moving through the region will result in chances for showers and some thunderstorms through Tuesday.
- Showers and isolated thunderstorms will end from west to east today as the responsible area of low pressure slowly transitions east southeast into Missouri. - Off an on chances for thunderstorms exist across the area through the period, although most chances are on the lower end and severe weather appears unlikely. An area of low pressure can be seen on satellite spinning across central Kansas this morning. A few showers and isolated thunderstorms are rotating around this low and across the local area, but they should shift east through the morning/afternoon hours, with diminishing coverage and possibly even a little sunshine returning by afternoon.
An upper level trough will bring isolated to scattered showers and isolated thunderstorms for today and Tuesday, before quieter weather moves in for the remainder of the week. The feature responsible for this isolated activity is a weak upper trough that will be moving through the area today. The upper trough will make its way through the area Tuesday and out Tuesday night. North to northwest winds will be breezy with gusts to 30 mph with highs slightly cooler but remaining in the 70s to near 80 degrees in some spots.
615 AM CDT Mon May 13 2024 (Today through Tuesday afternoon) An upper level low in the Great Plains will push a weak cold front into the area today.
611 AM CDT Mon May 13 2024 (Today and tonight) Drier and warmer conditions can be expected today despite a cold front moving through the area. This cold front was currently moving southward across the region which will scour out low level moisture and low stratus. Despite the cold front, temperatures will warm today closer to seasonal averages under mostly clear skies with increased thickness values.
Cloud cover will limit high temperatures to the lower 70s this afternoon with breezy winds up to 20 mph at times due to slight pressure gradient over the area.
538 AM CDT Mon May 13 2024 (Today through Tuesday afternoon) An upper level low in the Great Plains will push a weak cold front into the area today.
903 AM EDT Mon May 13 2024 Above average temperatures can be expected today under high pressure. Previous Discussion: Increasing subsidence as an upper ridge moves across the region will keep cloud coverage minimal.
After the passage of a trough, temperatures will begin trending higher today and then through late in the week as a strong ridge of high pressure builds back in. As the tough moves out of the region, high pressure will build back in the Northeast Pacific affecting Northwest California. As the ridge strengthens Tuesday, a weak upper low will move into Southern California. Inland temperatures in the valleys do look to be warmer than what was recently observed, with widespread low to mid 90s. A few areas in the warmer valleys are expected to see a moderate heat risk.
557 AM MDT Mon May 13 2024 - Drier/warmer today with scattered late day showers and thunderstorms over the mountains and foothills and isolated showers and storms over the immediate plains.
Warm temperatures with lighter winds next few days under high pressure aloft.
- Warmer than normal temperatures linger, before a cold frontal passage later today leads to more seasonal conditions this week. WEATHER PATTERN OVERVIEW: +++ AFTERNOON UPDATE: Storms have begun breaking this morning's cap across the higher terrain near the Little Rockies/Bear Paws in Montana and near the Cypress Hills along the Alberta/Saskatchewan border. A cold front will move through the forecast area this afternoon and night. The pattern favors near normal temperatures Tuesday and beyond, though ensemble models differ on the extent of troughing and moisture available for continued shower/thunderstorm chances.
1240 PM EDT Mon May 13 2024 High pressure builds south of the Mid-Atlantic region through the day today. Unsettled weather returns through the middle of the week with a slow moving low pressure system. After brief ridging towards the end of the week, more unsettled weather returns for the weekend. An increase in clouds may occur briefly across the Poconos and northern NJ late in the day as a warm front lifts north across northern PA. Regardless, a pleasant day is expected with afternoon temps rebounding into the low to mid 70s as the upper ridge builds overhead. Fair weather continues into tonight as high pressure remains positioned offshore. Lows will be a bit warmer than this morning mainly in the 50s.
306 PM EDT Mon May 13 2024 High pressure moves east tonight.
Northwest flow deamplifies tonight as heights slowly rebound ahead of upper ridging for Tuesday. Along with much warmer temperatures, a return to southerly flow at the surface will keep some of our moisture from mixing out too much, most notably off the Caprock where dewpoints may hold in the 50s through the afternoon.
CIMSS satellite-derived vorticity analysis highlights a well- defined mid-level ridge bridging the Gulf of Mexico and South Florida. An area of high pressure will slide over the western North Atlantic, resulting in generally gentle to moderate southeast to south breezes for much of the week.
The trough and a weak cold front will move east through southwest Idaho this afternoon, with showers and thunderstorms increasing mainly across far southern Idaho and the central Idaho mountains, where instability will be highest. Highs today will be a few degrees cooler than yesterday, but still 5-10 degrees above normal.
1225 PM CDT Mon May 13 2024 (Today through Tuesday) The main concerns in the short term will be the heat and the low probability for strong to severe thunderstorms today. In addition, the much warmer temperatures and high humidity will allow heat index values to up 114 degrees, especially along and east of the I-69C/US 281 corridor, for a few hours this afternoon. A dryline is expected to push into the far western counties this afternoon which may keep the heat indices slightly lower, 105 to 110, with highs to reach into the lower 100's. High temperatures on Tuesday will range from the lower 80s at the beaches, low to mid 90s across the Rio Grande Valley and the upper 90s to around 100 degrees across the Rio Grande Plains.
401 PM EDT Mon May 13 2024 A series of low pressure systems bring daily chances for showers and thunderstorms Tuesday through the end of the week. ______________________________________________________________ The upper ridge that provided warm and sunny weather to the area today pushes off to the east tonight as an upstream trough advances eastward into the Midwest. With the approaching trough comes decreasing heights and increasing moisture, which will support scattered shower activity overspreading the area from the southwest, particularly after midnight.
All of this activity will ultimately help reinforce a sfc boundary from NW AR into SE OK this afternoon, which will become focus of additional storm development this afternoon as the upper trough axis shifts over the forecast area and, as a result, wind fields will strengthen and result in a few strong to severe storms, mainly hail and wind.
High rain chances continue into Tuesday morning as a broad southwest flow continues ahead of an upper level trough. Low temps tonight will be in the low to mid 60s inland to low 70s along the coast. Highs on Tuesday will be in the low to mid 80s.
Meanwhile, surface analysis places an area of high pressure just offshore of the Virginia Tidewater area, with a weak frontal boundary draped over the Gulf coast. The frontal boundary will stall north of the Florida Keys for much of the week, with mean ridging continuing to dominant the sensible weather locally. Temperatures will remain very warm, with highs likely approaching the lower 90s by the end of the week.
Satellite and looking out of the windows shows some cloud build ups along the higher terrain. Thus, the stratocumulus clouds suggest nothing more than a spritz on the ridge tops and more of sun shading for everywhere else.
1216 PM CDT Mon May 13 2024 (Rest of today through Tuesday) It's pretty cool out there this morning with temps in the low to mid 60s. Instability should stay on the low side, but can't rule out a few rumbles of thunder today.
Churning upper level trough/low was trekking slowly east across the southern plains early this morning. Spiraling bands rotating counterclockwise around the trough were interacting with a west-east running cold front that was easing southward across the local area (extending from the MN/IA border into northeast WI at early morning). Track of the upper level trough, coupled with where the moisture transport/instability pool is progged to layout, suggests the bulk of the continued rain chances will hold across IA and northern IL, but northern fringes could spread into farther southern WI.
To our west, an upper low, centered over Kansas, continues to churn as it slowly progresses eastward. AC3 An upper low moving through the region will result in chances for showers and some thunderstorms through Tuesday.
1251 PM MST Mon May 13 2024 Temperatures will remain above normal the rest of this week and into the weekend with the lower deserts close to or just above 100 degrees most days. An exception will be the higher elevations of northern and eastern Arizona which will see a few late day showers each day. These showers could be supportive of some erratic, gusty winds descending into the lower deserts each evening.
UPDATE Brief ridging propagating across the region today will lead to minimal impacts. RH values could fall into the lower 20 percent range once more in some areas; however, winds will be relatively light, generally in the range of 7 to 12 mph.
218 PM EDT Mon May 13 2024 A warm front will move across the area this afternoon with some showers and a thunderstorm possible. After this, a weak high pressure ridge will provide warm and mainly rain-free weather outside of a few afternoon showers. Daytime heating behind a warm front and a more moist air mass will result in some diurnal instability across Western New York late this afternoon. It'll be warmer with highs in the 70s across western NY to the mid to upper 60s east of Lake Ontario. The warm front will stall from the north shores of Lake Ontario to the Saint Lawrence Valley tonight.
1214 PM CDT Mon May 13 2024 (Today and tonight) Drier and warmer conditions can be expected today despite a cold front moving through the area. This cold front was currently moving southward across the region which will scour out low level moisture and low stratus. Despite the cold front, temperatures will warm today closer to seasonal averages under mostly clear skies with increased thickness values.
A quick moving upper level trough and associated cool front are generating chances at scattered shower and thunderstorms for NE Nevada this evening and Tuesday, before quieter weather moves in for the remainder of the week. Monday and Tuesday Upper level trough is currently transiting the Pacific NW, and is forecast continue to influence Nevada through Tuesday evening. However, this front is basically a wind shift line as temperatures behind the front wont be much cooler. Temperatures will remain above average running in the low 70 to low 80s for highs and dropping into the low 40s to low 50s for overnight lows.
Meanwhile, a stronger southern stream wave will work from the southern Great Plains across the lower Mississippi Valley/southeast CONUS. A stalled front draped across mid-Michigan will slowly sag south tonight into Tuesday as a broad cyclone supported by aforementioned southern stream troughing treks across the mid-Mississippi Valley into Tuesday evening. Otherwise, sunny skies and quiet weather are in store for northern Michigan Tuesday as high pressure builds in. Northeasterly low-level flow will usher in some slightly cooler temperatures with highs in the mid 60s to low 70s for most interior areas. Cooler highs near 60 are anticipated near the lakeshores.
1150 AM MDT Mon May 13 2024 - Trending warmer through Monday, but remaining unsettled with daily chances for showers and storms through mid-week.
(This evening through Tuesday) A low pressure system will continue to move through the Ohio Valley with southerly low level winds bringing plenty of moisture to the area through tonight.
More widespread rain showers tomorrow morning and afternoon and cooler temperatures.
The high res models are keeping most of the activity out of our area, due to the lower moisture, instability, and shear behind the front. Clearer skies, weak variable winds, and lower dewpoints behind the front will allow for slightly cooler temperatures overnight. The upper level trough and front will move off to the east, putting us in northwest flow aloft. Clear skies will allow for plenty of solar insolation and warmer temperatures for tomorrow afternoon (highs in the mid 80s to mid 90s).
(This evening through Tuesday) A weak upper low continues to slowly traverse into the southwest US while gradually deepening our marine layer. However, the overall pattern continues to be dominated by a stout longwave ridge over the Eastern Pacific, so afternoons will be clear across the area with stratus lingering along coastal areas.
(Rest of today through Tuesday) It's pretty cool out there this morning with temps in the low to mid 60s. Instability should stay on the low side, but can't rule out a few rumbles of thunder today.
(This afternoon through Tuesday night) Warm, quiet, and mostly sunny accurately sums up the short term pretty well as weak ridging builds in over the next 24 hours. Despite a weak cold front that moved through this morning, temperatures have warmed up well into the 80s and low 90s this afternoon under full sunshine. High temperatures will be noticeably warmer under the building ridge, with many locations topping out in the low to mid 90s.
257 PM MDT Mon May 13 2024 - Weak ridging will keep today's showers and thunderstorms focused over the higher terrain.
Unsettled weather will continue through Tuesday as an upper level disturbance and cold front slowly progress across the region.
Issued by National Weather Service Charleston WV 137 PM EDT Mon May 13 2024 Above average temperatures can be expected today under high pressure. Previous Discussion: Increasing subsidence as an upper ridge moves across the region will keep cloud coverage minimal.
Dry and warmer conditions are expected with abundant sunshine.
There is a trailing wave along the BC coast that is pushing to the southeast in a developing NW flow aloft behind the initial trof. As you'd expect, weak convection developing over the high terrain is diminishing as it tracks off the foothills. Convection today and tomorrow will be non-severe, based on limited instability and poor shear, but it may produce small hail and localized erratic wind gusts (especially today w/ warmer temps and steep low level lapse rates). Freezing levels fall tonight behind a Pacific cold front. Snow levels in the high country should fall to about 9000ft elevation, which will continue through Tuesday and may fall to near 8000ft Tuesday night (as precip tapers off late).
1246 PM EDT Mon May 13 2024 A warm front will brush northern PA today before a cold front pushes through on Tuesday.
231 PM CDT Mon May 13 2024 - A slow-moving upper trough will bring waves of showers and scattered thunderstorms to the region through Tuesday afternoon.
156 PM EDT Mon May 13 2024 High pressure and dry air will move off to the east today.
1228 PM CDT Mon May 13 2024 (Today through Tuesday afternoon) An upper level low in the Great Plains will push a weak cold front into the area today.
1238 PM EDT Mon May 13 2024 High pressure and dry air will move off to the east today.
Otherwise, it will be warm again today, but slightly cooler than yesterday, with breezy afternoon wind speeds. Tomorrow will be slightly warmer than today.
143 PM EDT Mon May 13 2024 A warm front will move across the area this afternoon with some showers and a thunderstorm possible. After this, a weak high pressure ridge will provide warm and mainly rain-free weather outside of widely scattered afternoon showers. Showers associated with a warm front and the nose of a 40 knot low-level jet across the Eastern Lake Ontario region will exit to the east later this afternoon. It'll be warmer with highs in the 70s across western NY to the mid to upper 60s east of Lake Ontario. The warm front will lift north tonight, stalling from the north shores of Lake Ontario to the Saint Lawrence Valley.
Issued 345 PM CDT Mon May 13 2024 Tonight through Tuesday night: Spotty shower and thunderstorm activity should continue into this evening as a cold front sinks south and a lake breeze boundary pushes inland. Tonight, the front should sink south and thunder should give way to showery precipitation as weak WAA aloft continues north of an area of low pressure that's expected to move east along the Ohio River Valley.
Cold front has just about cleared the entire forecast area to the south, but a few showers along the front continue to threaten the extreme southeast portion of the forecast area. Meanwhile, a stronger southern stream wave will work from the southern Great Plains across the lower Mississippi Valley/southeast CONUS. A stalled front draped across mid-Michigan will slowly sag south tonight into Tuesday as a broad cyclone supported by aforementioned southern stream troughing treks across the mid-Mississippi Valley into Tuesday evening. Otherwise, sunny skies and quiet weather are in store for northern Michigan Tuesday as high pressure builds in. Northeasterly low-level flow will usher in some slightly cooler temperatures with highs in the mid 60s to low 70s for most interior areas. Cooler highs near 60 are anticipated near the lakeshores.
628 PM CDT Mon May 13 2024 Unsettled weather will continue through Tuesday as an upper level disturbance and cold front slowly progress across the region.
(The rest of tonight) Slow moving mid/upper level low continues to maintain its influence over the region this evening. Widely scattered showers with some embedded thunder are beginning to wane across the area as the trough axis slowly pushes into western Arkansas and the boundary layer stabilizes as the sun has set. Showers should continue to shift east this evening with the trof axis and weak to negligible surface boundary that is draped from southeast Oklahoma through northwest Arkansas. Bowlan (Tomorrow through Monday) Tuesday morning the mid/upper low is forecast to be positioned over Western/Central Missouri with the trof axis having exited the CWA. Severe potentials remain quite low on the backside of the low. Once the precip exits and the low moves farther away.
532 PM MDT Mon May 13 2024 - Weak ridging will keep today's showers and thunderstorms focused over the higher terrain.
PWB Unsettled weather will continue through Tuesday as an upper level disturbance and cold front slowly progress across the region.
Temperatures will remain above normal the rest of this week and into the weekend with the lower deserts close to or just above 100 degrees most days. An exception will be the higher elevations of northern and eastern Arizona which will see a few late day showers each day. These showers could be supportive of some erratic, gusty winds descending into the lower deserts each evening.
806 PM CDT Mon May 13 2024 - Daytime Tuesday will be dry and much warmer, with afternoon temperatures in the lower to mid 80s.
Widespread rain showers are expected tomorrow, along with cooler temperatures.
This threat too has been shunted south of the CWA along the aforementioned frontal boundary and warm sector, where the deeper moisture exists and likewise the higher rainfall rates. Showers and isolated storms will continue to be possible into Tuesday as the main upper trough and the cold front moves through the region. Skies will also gradually clear from west to east as high pressure quickly build into the region heading into the Tuesday night period. With clouds departing, look for highs to warm into the low and middle 80s.
711 PM EDT Mon May 13 2024 A series of low pressure systems bring daily chances for showers and thunderstorms Tuesday through the end of the week. ______________________________________________________________ The upper ridge that provided warm and sunny weather to the area today pushes off to the east tonight as an upstream trough advances eastward into the Midwest. With the approaching trough comes decreasing heights and increasing moisture, which will support scattered shower activity overspreading the area from the southwest, particularly after midnight.
Dew points are now in the upper 70s with temperatures remaining in the lower to mid 80s. Rain chances will remain essentially zero due to the continued dominance of the lower level ridge and multiple low level inhibition layers.
650 PM CDT Mon May 13 2024 (Rest of today through Tuesday) It's pretty cool out there this morning with temps in the low to mid 60s. Instability should stay on the low side, but can't rule out a few rumbles of thunder today.
558 PM CDT Mon May 13 2024 (This afternoon through Tuesday night) Warm, quiet, and mostly sunny accurately sums up the short term pretty well as weak ridging builds in over the next 24 hours. Despite a weak cold front that moved through this morning, temperatures have warmed up well into the 80s and low 90s this afternoon under full sunshine. High temperatures will be noticeably warmer under the building ridge, with many locations topping out in the low to mid 90s.
619 PM CDT Mon May 13 2024 - A slow-moving upper trough will bring waves of showers and scattered thunderstorms to the region through Tuesday afternoon.
914 PM EDT Mon May 13 2024 High pressure moves east overnight.
1049 PM EDT Mon May 13 2024 Showers associated with a passing warm front will remain along the northern fringe of the north country through most of the night. After this, a weak high pressure ridge will provide warm and mainly rain-free weather outside of a few afternoon showers. Showers are found mainly across the far northern portion of the eastern Lake Ontario area currently, as a warm front pushes northeast across the region. Current temperatures across the area are in the low/mid 60s for most areas, with the slightly warmer temperatures across WNY. The warm front will stall from the north shores of Lake Ontario to the Saint Lawrence Valley tonight.