Aikyam-Lab/Synoptic-Bench huggingface dataset:
Cooler temperatures and associated high pressure look to traverse the forecast area over tonight bringing down our overnight lows to the low 40s. As the high begins to slide out to our east, we will see a return of southeasterly flow in the mid levels tomorrow afternoon; reflecting down to the surface by tomorrow night. This will produce an unorthodox thermal pattern across the CWA, with areas still under the peripheral influence of the high and associated colder temperatures seeing overnight lows in the mid 40s, and the rest of the region ranging from 50 in central Mississippi to the high 50s along the Concordia/Adams area.
1201 PM CST Fri Nov 15 2024 - Temperatures trend cooler to start this weekend with a 90 percent or greater chance of precipitation overall in the north and west central tonight through Saturday night.
pdf A much drier and, thus cooler, airmass continues to filter southward in the wake of last nights frontal passage. Deep northwesterly flow will continue cool air advection into the area through tonight leading to much cooler conditions. A small component of the north- northeast wind will keep temps a bit warmer along the coast from Mayport south with lows around 60F.
(This evening through Saturday Night) Upper-air analysis this afternoon is showing weak ridging over our region, with troughing on across the western and eastern CONUS. Moving deeper into the weekend, the upper-level ridge will begin to push to the east in response to the trough across the west digging southeastward.
Whether or not the stratus deck erodes will determine if there will be warmer or cooler temperatures. Max temperatures range from higher 50s to lower 60s with cooler temperatures over southern middle TN due to cloud cover lingering into the afternoon.
A few pockets of patchy frost will be possible in the lower valley areas of southeast Oklahoma, but nothing widespread expected.
1228 PM EST Fri Nov 15 2024 A much drier and, thus cooler, airmass filtering southward in the wake of last nights frontal passage has lead to 24-hour temperature change of about 8-17 degrees as of 9 AM. Deep northwesterly flow will continue cool air advection into the area through tonight leading to a much cooler day this afternoon with highs generally in the upper 60s and low 70s.
(Through Saturday) High pressure off will be positioned off to our north tonight and Saturday, which will promote light northeast to east flow across the area. Thus, tonight's forecast lows will range from the lower to middle 40s across Alabama and Georgia to the upper 40s and lower 50s across Florida. Another sunny day is on tap for Saturday with highs in the lower to middle 70s.
Tonight, winds will stay up some with the center of the high still well off to our northwest, but radiational cooling and weak cold advection will allow temps to fall into the mid to Low 40s. Upper troughing continues to move away from the coast as an upper ridge builds over the region. At the surface, high pressure continues to settle in over the Southeast. With the high pressure in place, efficient radiational cooling is expected to bring chilly temperatures overnight, especially Saturday night.
Issued by National Weather Service Cleveland OH 1031 AM EST Fri Nov 15 2024 A few showers or patchy light drizzle will linger this morning as a mid level trough moves away from the region. Although high pressure will build into the region tonight into Saturday, cloud cover will linger.
952 AM CST Fri Nov 15 2024 - Temperatures trend cooler to start this weekend with a 90 percent or greater chance of precipitation overall in the north and west central tonight through Saturday night.
Wind will continue to flow in from the northwest, ushering in lake enhanced moisture to promote the low hanging ceilings along with embedded light drizzle/rain showers. We should finally see some clearing take shape around midday Saturday as the upper trough swings further off the eastern seaboard. Key Points: * High pressure ushers in quiet weather for the weekend. High pressure takes control beneath an upper ridge on Saturday, then dry weather will be sustained through the remainder of the weekend as both high pressure and ridging ease east overhead. High temperatures should be near normal on Saturday, with mid to upper 50s in the lowlands and mid 40s to 50s in the mountains.
1243 PM EST Fri Nov 15 2024 A few showers or patchy light drizzle will linger this morning as a mid level trough moves away from the region. Although high pressure will build into the region tonight into Saturday, cloud cover will linger.
1124 AM CST Fri Nov 15 2024 (Today through Saturday) Large synoptic dome of high pressure over the area this morning providing some very nice conditions. The center of this high is located over TX this morning and will move east through the short term. The upper trough over the west coast will dig and deepen causing the ridge to amplify downstream through the next few days as well. It is between these two high centers as they both move east that a portion of moisture will move with the 850mb flow up the western gulf into the new cold front that will be developing in the Rockies keeping our area in dry but slightly moistening conditions as return flow starts late Sat.
(Now through Saturday Night) Westerly to northwesterly flow aloft persists over the local region as an upper trough pushes further into the western Atlantic and an upper ridge, located near the Mississippi River Valley, builds eastward. The ridge begins to build into the region tonight and will slowly move overhead on Saturday. At the surface, a large high pressure system located over the central US will arrive at the Appalachians by Saturday night. As the high shifts eastwards, surface winds across the local area will turn from northerly today, to easterly on Saturday, and to southeasterly by Saturday night. 5 inches), along with subsidence from the deep layer ridging overhead, no rain is expected through the period. Similarly, lows tonight will range from the low 40s inland to the low 50s along the coast.
525 PM CST Fri Nov 15 2024 (This evening through Saturday night) Upper ridging over the Mississippi River Valley, with a deep trough over the Intermountain west. At the surface, high pressure was centered over Illinois, with low pressure on the lee side of the Rockies.
Otherwise, a clear and crisp Fall night is in store with lows mainly in the lower 40s outside of some 30s in those valleys.
543 PM MST Fri Nov 15 2024 KEY MESSAGES: - Low pressure system moving up from the south brings rain tonight.
Likewise subsidence from high pressure has aided in keeping the skies mostly clear and suppressing winds.
604 PM CST Fri Nov 15 2024 (This evening through Saturday Night) Upper-air analysis this afternoon is showing weak ridging over our region, with troughing on across the western and eastern CONUS. Moving deeper into the weekend, the upper-level ridge will begin to push to the east in response to the trough across the west digging southeastward.
337 PM CST Fri Nov 15 2024 - Temperatures trend cooler this weekend with a 90 percent or greater chance of precipitation in the north and west central tonight through Saturday night.
600 PM EST Fri Nov 15 2024 High pressure will build across and offshore the Middle and South Atlantic states through the weekend. Models support some thin cirrus overtopping the ridge and spreading into NC Sat night, and if we see a small upper jetlet passing through the mountains of NC/VA, as some models indicate, the vertical thermal and wind profiles would favor some orographic enhancement of the cirrus, leading to potentially thicker high clouds over parts of the Piedmont during the predawn hours.
534 PM CST Fri Nov 15 2024 (Tonight) High pressure will continue to dominate the region tonight, keeping rain out of the forecast.
Upper troughing continues to move away from the coast as an upper ridge builds over the region. At the surface, high pressure continues to settle in over the Southeast. With the high pressure in place, efficient radiational cooling is expected to bring chilly temperatures overnight, especially Saturday night.
536 PM CST Fri Nov 15 2024 Cooler temperatures and associated high pressure look to traverse the forecast area over tonight bringing down our overnight lows to the low 40s. As the high begins to slide out to our east, we will see a return of southeasterly flow in the mid levels tomorrow afternoon; reflecting down to the surface by tomorrow night. This will produce an unorthodox thermal pattern across the CWA, with areas still under the peripheral influence of the high and associated colder temperatures seeing overnight lows in the mid 40s, and the rest of the region ranging from 50 in central Mississippi to the high 50s along the Concordia/Adams area.
538 PM CST Fri Nov 15 2024 - Temperatures trend cooler this weekend with a 90 percent or greater chance of precipitation in the north and west central tonight through Saturday night.
Have opted to leave the temperature forecast as-is, so still expecting the highest elevations of northeast Georgia to fall to near 36 degrees by early tomorrow (Saturday) morning. (This afternoon through Saturday) High pressure and dry conditions will persist through the short term portion of the forecast. High pressure currently centered across the Mid Mississippi River Valley will move east through Saturday with ridging building southward. These clouds are on the back side of a departing low pressure system off the coast of the Carolinas.
(This afternoon through Saturday) High pressure and dry conditions will persist through the short term portion of the forecast. High pressure currently centered across the Mid Mississippi River Valley will move east through Saturday with ridging building southward. These clouds are on the back side of a departing low pressure system off the coast of the Carolinas.
622 PM CST Fri Nov 15 2024 (Tonight through Saturday night) An upper ridge to the east and trough to the west has the flow over Texas from the southwest. High pressure to our northeast is producing southeasterly flow in the low levels. This moistening will continue tonight as the low level southeasterly flow strengthens. Temperatures will be warmer with lows around 10 degrees warmer than this morning. Warmer, moister air will continue to return from the Gulf. Cloudy skies will redevelop as warmer, moister air moves in.
As for the rest of today, an ideal Fall weather day is forecast as high pressure overhead provides abundant sunshine. Light northerly flow will hold the dry and cooler air in place with afternoon highs topping out in the mid 60s.
Otherwise, clouds will continue to slowly erode as high pressure further builds into the area.
Rua (Tonight through Sunday night) A large mass of high pressure sits over the Ohio valley with ridging extending off central Gulf Coast. This regime will keep conditions dry the rest of today and Saturday across SETX and SWLA with temperatures finally situating around climatological norms in the lower 70âs. With the high pressure continuing to broaden along the eastern Seaboard winds will pickup out of the SE through Sunday night.
351 AM EST Sat Nov 16 2024 Intermittent drizzle may linger during the morning hours, especially north of Pittsburgh and in the ridges. - Patchy dense fog expected along the ridges.
KEY MESSAGES: - Light rain/drizzle will linger through Saturday morning - Patchy dense fog expected along the ridges ------------------------------------------------------------------ 5:30pm Update: No major changes have been made to this forecast period. Measurable precip will likely be focused along the ridges due to upsloping; probability of >= 0. Unlikely early this morning, probabilities of low visibility due to dense fog will likely be confided to the ridges. Due to the developing northwesterly flow, clouds are expected to persist through late tomorrow morning as a high pressure moves into the area. Late tomorrow night into Sunday morning, expect clouds to return as a trough moves in behind the exiting high.
1000 PM CST Fri Nov 15 2024 The mid-evening sfc analysis depicts sfc ridging has shifted E into the OH Valley, tailing SW into extreme Ern TX, but remains progged to gradually weaken with time as it drifts E overnight through Saturday. But despite the clear sky, temps have quickly dropped since sunset within the very dry air mass in place, with 03Z temps in the mid/upper 40s in the outlying areas, and into the lower/mid 50s in the more urbanized areas.
Increasing clouds and precipitation chances as an area of low pressure and accompanying fronts impacts the region. An upper trough is transitioning over southeast ID into MT this evening. A warm front arrives Sunday morning, with precipitation spreading across eastern OR in the morning and southwest ID by Sunday afternoon.
(Today through Sunday) High pressure is currently centered over the Great Lakes and Ohio Valley. The center of the high pressure will slide southeast, and will be centered over the Mid-Atlantic by sunset on Sunday. We will likely see some patchy fog this morning and then again Sunday morning, as the ground moisture remains and temperatures will fall quite substantially into into thew upper 30s to low 40s this morning and then a few degrees warmer on Sunday morning.
As the upper level high continues to shift east, clouds will increase in advance of the next storm system.
1202 AM PST Sat Nov 16 2024 Snow showers associated with a trough of low pressure will end this morning.
pdf High pressure at the surface and aloft will move over the forecast area through Tonight. High temperatures Today will be in the lower-mid 90s, a degree or two above normal for the time of year.
359 AM EST Sat Nov 16 2024 High pressure will build in today through Sunday morning, then shift south of the area Sunday night.
Highs today will reach the low to mid 70s after morning lows in the 40s.
1136 PM CST Fri Nov 15 2024 (This evening through Sunday) High temperatures today will top out in the 60s to lower 70s with mostly clear sky conditions, as upper ridging and high pressure shift across the region.
221 AM EST Sat Nov 16 2024 High pressure builds into the area today and Sunday, bringing dry weather and warming temperatures.
High pressure will be building in from the southwest overnight, so the winds will be relatively light as well. - Low Chance of Rain Sunday Night Our main weather concern for the latter half of the weekend comes in the form of a weak cold front crossing the state on Sunday. Given the cold front and attendant vorticity maxima crossing the state, light showers are possible. The main limiting factor is that moisture looks quite shallow, confined to the lowest 5kft in most model soundings.
Radar data and surface observations show that a weak cold front is moving slowly southward through the Upper Keys and Bay/Gulf waters at this time.
With current temperatures mostly in the mid 40s, it will not take many breaks in the clouds to push temps back into the lower 50s/around 50 today. Thus, as the cold front comes through Sunday evening/night, measurable rain showers will be a challenge, as much of the low level moisture transport/isentropic ascent will be used up to just saturate the low level airmass.
1021 PM CST Fri Nov 15 2024 (Tonight through Saturday night) An upper ridge to the east and trough to the west has the flow over Texas from the southwest. High pressure to our northeast is producing southeasterly flow in the low levels. This moistening will continue tonight as the low level southeasterly flow strengthens. Temperatures will be warmer with lows around 10 degrees warmer than this morning. Warmer, moister air will continue to return from the Gulf. Cloudy skies will redevelop as warmer, moister air moves in.
1118 PM CST Fri Nov 15 2024 (This evening through Saturday night) Upper ridging over the Mississippi River Valley, with a deep trough over the Intermountain west. At the surface, high pressure was centered over Illinois, with low pressure on the lee side of the Rockies. For Saturday/Saturday night, the NBM resembles the warmer guidance, and with onshore flow, that should work well.
Have just made some minor adjustments to slightly lower overnight temps based on current guidance/obs trends, and the cooler readings could support a bit more fog. /EC/ Cooler temperatures and associated high pressure look to traverse the forecast area over tonight bringing down our overnight lows to the low 40s. As the high begins to slide out to our east, we will see a return of southeasterly flow in the mid levels tomorrow afternoon; reflecting down to the surface by tomorrow night. This will produce an unorthodox thermal pattern across the CWA, with areas still under the peripheral influence of the high and associated colder temperatures seeing overnight lows in the mid 40s, and the rest of the region ranging from 50 in central Mississippi to the high 50s along the Concordia/Adams area.
Have just made some minor adjustments to slighly lower overnight temps based on current guidance/obs trends, and the cooler readings could support a bit more fog. /EC/ Cooler temperatures and associated high pressure look to traverse the forecast area over tonight bringing down our overnight lows to the low 40s. As the high begins to slide out to our east, we will see a return of southeasterly flow in the mid levels tomorrow afternoon; reflecting down to the surface by tomorrow night. This will produce an unorthodox thermal pattern across the CWA, with areas still under the peripheral influence of the high and associated colder temperatures seeing overnight lows in the mid 40s, and the rest of the region ranging from 50 in central Mississippi to the high 50s along the Concordia/Adams area.
- Drying out and turning warmer to begin the weekend. An upper-level ridge over the Nation's Heartland this afternoon arrives over Indiana Saturday.
1038 PM CST Fri Nov 15 2024 The mid-evening sfc analysis depicts sfc ridging has shifted E into the OH Valley, tailing SW into extreme Ern TX, but remains progged to gradually weaken with time as it drifts E overnight through Saturday. But despite the clear sky, temps have quickly dropped since sunset within the very dry air mass in place, with 03Z temps in the mid/upper 40s in the outlying areas, and into the lower/mid 50s in the more urbanized areas.
Meanwhile, an upper level ridge arrives from the west providing very dry air aloft. Expect clearing slowly spreading from west to east across the lowlands late this afternoon or evening and perhaps staying cloudy along the mountains. Afternoon temperatures will struggle to reach the upper 50s across the lowlands, ranging into the mid 40s northeast mountains.
(Today through Sunday) High pressure builds back over the region both at the surface and aloft. A ridge of high pressure aloft will reinforce the presence of a deep layer of drier, cooler air that will sit over the region for the weekend. Overnight lows will cool into the lower to mid 60s inland with upper 60s to lower 70s along the Atlantic coast.
Key Message(s): - Dry high pressure is building into the area with slightly below average temps. Dry air aloft and surface dew points down into the low 40's has allowed for decent radiational cooling early Saturday. Light winds expected as the pressure gradient weakens with the center of the high moving over the TN Valley. Key Message(s): - Dry weather and gradually warming temperatures High confidence forecast during this period characterized by strong upper level ridging over the southeastern states.
611 AM CST Sat Nov 16 2024 (Today through Sunday) High pressure is currently centered over the Great Lakes and Ohio Valley. The center of the high pressure will slide southeast, and will be centered over the Mid-Atlantic by sunset on Sunday. We will likely see some patchy fog this morning and then again Sunday morning, as the ground moisture remains and temperatures will fall quite substantially into into thew upper 30s to low 40s this morning and then a few degrees warmer on Sunday morning.
612 AM EST Sat Nov 16 2024 High pressure builds into the area today and Sunday, bringing dry weather and warming temperatures.
427 AM EST Sat Nov 16 2024 (Today through Sunday) An upper level ridge extending from the W FL Panhandle to the W Great Lakes region will shift E to the Atlantic Seaboard by late Sunday. At the surface, a high pressure ridge over the E US will shift SE and be centered over the SE GA coast by late Sunday. High temperatures today will range from the mid to upper 50s in the highest elevations of the N to near 70 across the S. Low temperatures will range from the lower to mid 40s across most of the area. High clouds will linger across the N on Sunday, with high temperatures ranging from the upper 50s in the NE mountains to the lower 70s across Central GA.
1000 AM EST Sat Nov 16 2024 A large area of high pressure centered off to the north continues to funnel a dry air mass into the region. The dry conditions will continue for the rest of today as high temperatures rise into the lower 80s across most areas. (Today through Sunday) High pressure builds back over the region both at the surface and aloft. A ridge of high pressure aloft will reinforce the presence of a deep layer of drier, cooler air that will sit over the region for the weekend. Overnight lows will cool into the lower to mid 60s inland with upper 60s to lower 70s along the Atlantic coast.
The potential for strong winds looks to be less than 60 percent in the Great Falls and Stanford areas, thus the high wind watch for these areas has been cancelled. Strong winds are still expected tonight and into Sunday along the front range of the Rockies and in the Cut Bank area, thus the high wind warning continues for those areas. Temperatures will be seasonable, with Tue/Wed being on the cooler side. Winter Weather Advisory until 8 AM MST this morning for Big Belt, Bridger and Castle Mountains-Fergus County below 4500ft- Gallatin Valley-Gallatin and Madison County Mountains and Centennial Mountains-Judith Basin County and Judith Gap-Little Belt and Highwood Mountains-Madison River Valley-Snowy and Judith Mountains.
628 AM EST Sat Nov 16 2024 (Today through Sunday) High pressure builds back over the region both at the surface and aloft. A ridge of high pressure aloft will reinforce the presence of a deep layer of drier, cooler air that will sit over the region for the weekend. Overnight lows will cool into the lower to mid 60s inland with upper 60s to lower 70s along the Atlantic coast.
550 AM EST Sat Nov 16 2024 Intermittent drizzle may linger during the morning hours, especially north of Pittsburgh and in the ridges. - Patchy dense fog expected along the ridges.
Current satellite imagery shows the center of the low tracking over extreme eastern Idaho into Montana with radar showing ongoing snow showers across portions of the eastern Magic Valley and Snake River Plain, as well as the eastern mountains and highlands. Most of Southeast Idaho will get a brief break in activity this afternoon and evening before we begin to see the impacts of moisture associated with the next upper low moving onshore on Sunday.
To the west, a cutoff low will develop around northern Mexico in the base of a positively tilted upper-level trough.
This should be just enough for the coolest locations overnight where the wind can also shut down which should be in the lower lying areas. Inversions are set but there is a layer of moisture moving in from the gulf above the lowest frontal inversion that could be a strat deck from 3k-6kft.
A Freezing Warning has been issued from 2 AM Sunday through 8 AM Sunday.
(Today through Sunday) An upper level ridge extending from the W FL Panhandle to the W Great Lakes region will shift E to the Atlantic Seaboard by late Sunday. At the surface, a high pressure ridge over the E US will shift SE and be centered over the SE GA coast by late Sunday. High temperatures today will range from the mid to upper 50s in the highest elevations of the N to near 70 across the S. Low temperatures will range from the lower to mid 40s across most of the area. High clouds will linger across the N on Sunday, with high temperatures ranging from the upper 50s in the NE mountains to the lower 70s across Central GA.