Aikyam-Lab/Synoptic-Bench huggingface dataset:
1239 AM EST Sun Dec 4 2022 High pressure will build east into the Ohio Valley tonight. The high will extend across the region on Sunday. High pressure will extend across the region on Sunday. Given a cold start and neutral advection, temperatures will only warm into the upper 30s to the lower 40s. For Sunday night, the high will move east of the region.
The increased moisture in the lower levels should lead to some overnight fog formation, some of which could be dense over inland areas.
1105 PM CST Sat Dec 3 2022 Key Messages - Calmer and cooler conditions expected today. Many areas saw highs in the low 60s whereas today highs looks to barely reach 60-75 percent of that only cresting in the low to mid 30s. As the high slides further east, southerly flow on the west side of the anticyclone once again pushes temperatures back into the 50s.
1058 PM EST Sat Dec 3 2022 Cooler and drier air push in tonight behind a cold front.
1057 PM CST Sat Dec 3 2022 (This evening through Sunday) A 1030mb area of high pressure will settle in across Oklahoma and north Texas this evening, allowing winds to become light and variable. Meanwhile, the cold front that went through the state will come to a halt in northern Mexico. By sunrise, skies will be overcast area- wide, which should allow temperatures to only fall into the low to mid 40s. Although temperatures are forecast to reach the low 60s, it will take all day to reach these highs.
944 PM CST Sat Dec 3 2022 (Tonight) A cold front has shifted southeast of the forecast area early this evening allowing strong cold advection to arrive as the sky clears. At this hour, temperatures were tumbling into the lower to middle 40s in southern TN and far northwest AL, to lower 50s southeast.
A weak cold front moving into northern Florida this morning will stall out north of the forecast area, with a warm and somewhat humid airmass remaining in place to start the week.
Upper air pattern consists of a closed 500 mb low off the Pacific NW Coast and a broad trough over the Great Lakes region with a ridge along the Gulf Coast 12z Sun. The low comes onshore 12z Mon and then heads south towards central CA by 00z Wed while troughing remains over the Great Lakes. In the extended, the GFS and ECMWF show a trough in the desert sw and a trough in the upper Mississippi River Valley 12z Wed. GFS and ECMWF show a trough in the western U. with the GFS most amplified 12z Fri and the ECMWF having some troughing also in the Rockies. With relatively dry air at the low-levels dominating during this fcst period, VFR will prevail at IWD/SAW thru this evening.
1051 PM CST Sat Dec 3 2022 (Tonight through Sunday night) The cold front has pushed south into the Coastal Plains and Winter Garden region. Highs in the low to mid 60s are forecast, possibly remaining in the upper 50s in some areas of the Hill Country.
214 AM EST Sun Dec 4 2022 High pressure in quickly building in from the Ohio Valley.
1127 PM CST Sat Dec 3 2022 (This afternoon through Sunday) The cold front is situated just north of I-59/20, and surface winds are becoming northwesterly across our far northern counties. This activity will continue to fade through the afternoon as forcing wanes while the trough pulls further north through Hudson Bay. Cold air advection will result in cooler temperatures across the north where overnight temperatures will fall into the lower 30s with mid 50s southeast near the front. The front will meander along the Gulf Coast tomorrow with cooler air residing across our north.
High pressure over the Ohio Valley will produce sunny skies today.
845 PM MST Sat Dec 3 2022 Across the Tri State region this afternoon, skies are a partly to mostly sunny mix as a veil of high cloud continues to shift east off the Rockies, with some anchored to the east side of a trough stretching across east-central Colorado. With high pressure east, and the trough west, there is a tight south-southwesterly gradient with gusts 25-35 mph.
1028 PM EST Sat Dec 3 2022 High pressure in quickly building in from the Ohio Valley.
311 AM EST Sun Dec 4 2022 Dry high pressure will cover the area today and tonight.
Areas along I-40 continue to be targeted for the highest rainfall amounts and rain chances through the morning, with a slight sag southward into the afternoon hours. Some concern persists that initially the rain may begin as light freezing rain in the higher terrain areas of far northwest Arkansas, given temperatures hovering near freezing in a few areas presently, as well as notable dew point depressions in most areas. The dew point forecast today has been modified upward from the lower NBM values in response to this observational trend. Will continue with the mention of both rain and freezing rain potential through 15Z, with minimal ice accumulations.
Temperatures will remain below normal with highs in the lower 40s to mid 50s.
1043 PM CST Sat Dec 3 2022 (This evening through Sunday) Despite plenty of sun, chilly high pressure continued to dominate much of the region this afternoon with temps of 25-30F cooler than this time yesterday. As surface ridging relaxes this evening and departs east, modest isentropic ascent and some Fn from 850-700mb will focus to our north along the I-40 corridor. Lows tonight fortunately will be above freezing area wide thanks to thick clouds and southerly breezes.
925 PM CST Sat Dec 3 2022 Midevening GOES IR imagery showed increasing high clouds spreading into the Midsouth, as high altitude subtropical moisture spilled over an upstream ridge axis over the southern high plains. 00Z SGF and LZK soundings were very dry under the high level moisture, with precipitable water values of 0. Light precip is expected toward midday Sunday, likely aided by the right rear entrance region of a 125kt 250mb jet max over the lower Ohio Valley.
529 AM MST Sun Dec 4 2022 The strong flow zonal flow aloft will continue over CO today with a weak ridge of high pressure over CO. The ridge will flatten today with the axis shifting east of CO by this evening. Snow accumulations tonight of 1 to 4 inches possible on the higher west facing slopes. Across the urban corridor and northeast plains it will be dry, with temperatures near to slightly warmer than yesterday.
(Monday Night through next Sunday) A warm front meanders around the mid south and several impulses will ride this boundary.
Issued by National Weather Service Greenville-Spartanburg SC 412 AM EST Sun Dec 4 2022 A series of small upper disturbances will give a good chance for rain early in the week, then deep ridging is expected with much lower rain chances and warmer late in the week.
524 AM CST Sun Dec 4 2022 (Today and tonight) Early morning satellite analysis depicts a broad fetch of mid/upper level moisture stretching from the desert southwest into the central plains within WSW flow aloft along the edge of an upper ridge centered over Mexico. The aforementioned upper ridge will begin flattening today, with weakening flow aloft bringing an end to precipitation and resulting in dry conditions area-wide by this afternoon.
559 AM CST Sun Dec 4 2022 (Today through Monday) A cold front is positioned across the far south this morning and will remain there through the day. Once any remaining fog burns off this morning, look for variable clouds with moments of sunshine as high pressure builds north of the area. As the day progresses and the warm front lifts northward the added lift will increase coverage and intensity of the showers through the afternoon.
239 AM MST Sun Dec 4 2022 Upper level ridge will move through the area today bringing us a brief warm up with highs in the 20s north of the Missouri River and highs in the 30s south of the Missouri River. Later tonight a positively tilted trough moving down the West Coast will start bringing in a band of snow that will impact our far southwestern zones tonight and move up into the rest of the area on Monday.
919 AM EST Sun Dec 4 2022 Dry high pressure will cover the area today and tonight.
Highs will be a bit warmer in the lower 60s after a chilly start to the morning.
337 AM CST Sun Dec 4 2022 (Issued 336 AM CST Sun Dec 4 2022) Today through Monday: Mostly clear skies are expected today under the influence of high pressure centered over the Ohio River Valley. Clouds will increase this evening into tonight as the low draws closer, keeping temps near normal values. The low and associated cold front will sweep through the area on Monday, with a chance for some light snow during the morning and early afternoon hours as a strong shot of warm air advection aloft moves through.
While the mid level ridge will move east and repositioned in the center of the Gulf of Mexico.
629 AM EST Sun Dec 4 2022 High pressure will maintain dry weather through Monday. Periodic rain chances return Monday night, and continue through much of the week, with a series of low pressure systems. Remaining stratocu N and E of PIT should continue to erode this morning with increasing subsidence under building high pressure, and backing wind flow. Otherwise, mostly sunny skies are expected today as the high continues building eastward. High pressure should maintain clear skies tonight, with radiational cooling as decoupling occurs. The high will reach the East Coast Monday, with srly flow on the wrn side.
614 AM EST Sun Dec 4 2022 High pressure will build south of the area today through Monday.
949 AM EST Sun Dec 4 2022 High pressure will build south of the area today through Monday.
Locally gusty south to southwest ridgetop winds today. Colder air associated with this low will allow for snow levels to continue to lower this morning, down to around 4,000 - 5,000 feet for the Sierra Nevada and 3,500 - 4,000 feet for the Shasta County mountains. Locally gusty ridgetop winds are also expected today, out of the south to southwest direction, and strongest south of Highway 50 where ridgetop gusts 45 to 60 mph are possible.
Fair dry weather will continue with temperatures remaining a few degrees above normal as a weakening cold front stalls over north Florida. A weak cold front moving into northern Florida this morning will stall out north of the forecast area, with a warm and somewhat humid airmass remaining in place to start the week.
Boxell (Issued 336 AM CST Sun Dec 4 2022) Today through Monday: Mostly clear skies are expected today under the influence of high pressure centered over the Ohio River Valley. Clouds will increase this evening into tonight as the low draws closer, keeping temps near normal values. The low and associated cold front will sweep through the area on Monday, with a chance for some light snow during the morning and early afternoon hours as a strong shot of warm air advection aloft moves through.
639 AM EST Sun Dec 4 2022 Dry high pressure will cover the area today and tonight.
539 AM CST Sun Dec 4 2022 (Today through Monday Night) Yesterday's cold front is now well off the coast, and area temperatures early this morning range from the mid 50s inland to the low to mid 60s at the coast. High temperatures should peak in the mid to upper 60s well inland to the lower 70s toward the coast (should stay around the upper 60s at the beaches). With high pressure to our east and deepening low pressure in the northwest New Mexico- Texas Panhandle area on Monday, we will see strengthening south to south-southwest winds that will help to boost daytime highs around the 80 degree mark.
313 AM MST Sun Dec 4 2022 The strong flow zonal flow aloft will continue over CO today with a weak ridge of high pressure over CO. The ridge will flatten today with the axis shifting east of CO by this evening. Snow accumulations tonight of 1 to 4 inches possible on the higher west facing slopes. Across the urban corridor and northeast plains it will be dry, with temperatures near to slightly warmer than yesterday.
913 AM EST Sun Dec 4 2022 High pressure over the Ohio Valley will build eastward over the next couple of days, passing off the Mid Atlantic coast by Monday.
404 AM EST Sun Dec 4 2022 High pressure will extend across the region through tonight. High pressure centered over southern Illinois early this morning will track east across the region today. Increasing rain chances and cloud cover accompany the return of moisture with fairly deep saturation of the profile through the low and mid levels.
Mid-level water vapor imagery this morning shows a low spinning off the California/Oregon coast, a stream of moisture extending from Baja California and through the midwest, another low over the Hudson Bay and ridging over the Gulf of Mexico. Surface ridging has moved east of the area with light southerly winds. By Monday, mid-level energy will move east into northern Nebraska and South Dakota, prompting a weak cold front to push through northeastern Kansas.
519 AM CST Sun Dec 4 2022 (Today through Monday) A weak cold front lies across the CWA this morning. South of the front, over the lower Valley, fog is prevalent, and can't rule out patches of locally dense through the early morning hours. With the weak cold front still in the vicinity today, a few light showers will be possible. The front will lift back to the north as a warm front tonight. Meanwhile, big mid-level ridging will remain a feature overhead. High pressure will also reestablish over the Gulf, supporting a strong return flow on Monday and moderate to breezy southeast winds. High temperatures on Monday will shoot up into the lower to mid 80s with mostly sunny skies by afternoon.
538 AM EST Sun Dec 4 2022 High pressure will maintain dry weather through Monday. Periodic rain chances return Monday night, and continue through much of the week, with a series of low pressure systems. Remaining stratocu N and E of PIT should continue to erode this morning with increasing subsidence under building high pressure, and backing wind flow. Otherwise, mostly sunny skies are expected today as the high continues building eastward. High pressure should maintain clear skies tonight, with radiational cooling as decoupling occurs. The high will reach the East Coast Monday, with srly flow on the wrn side.
A cold front will approach from the northwest tonight, but dry conditions should prevail. The cold front will move slowly across the forecast area on Monday.
An upper low offshore will bring moisture to the area today for rain and snow showers primarily south of Snohomish County. Drier weather Monday with weak high pressure aloft.
(Today through Monday) A cold front is positioned across the far south this morning and will remain there through the day. Once any remaining fog burns off this morning, look for variable clouds with moments of sunshine as high pressure builds north of the area. As the day progresses and the warm front lifts northward the added lift will increase coverage and intensity of the showers through the afternoon.
Embedded in the westerlies was a low/mid level trough over the central and southern High Plains â where the best moisture convergence and warm air advection was focused just to our south in the Texas Panhandle into western Oklahoma. This afternoon will be a transition day with light wind and generally rebounding temperatures into the low 50s across much of the area, with some hint from the NAM of temperatures not exceeding the upper 40s around Hays and other eastern counties. Another relatively mild overnight as temperatures hover within a few degrees of the freezing point, colder northeast and warmer southwest.
446 AM EST Sun Dec 4 2022 Dry high pressure will cover the area today and tonight.
552 AM EST Sun Dec 4 2022 Temperatures will climb back above freezing today with mostly sunny skies to help warming. High pressure slides eastward into the Virginias tonight and despite strong surface-based inversion which will decouple boundary layer from stronger 20-30kt low level flow and mostly clear skies for good radiational cooling. enough of a gradient over our area on the backside along with weak WAA on southwest flow to keep lows a little warmer in the mid 20s. Forecast period to begin with progressive zonal flow over the region with a northern stream wave rounding the base of closed low over central Canada and moving through the northern Great Lakes on Monday/Monday night while southern stream disturbances ride along boundary in the TN valley.
950 AM EST Sun Dec 4 2022 High pressure will extend across the region through tonight. High pressure centered over southern Illinois early this morning will track east across the region today. Highs will be about 5 degrees below normal, ranging from the upper 30s to the lower 40s. Increasing rain chances and cloud cover accompany the return of moisture with fairly deep saturation of the profile through the low and mid levels.
721 AM EST Sun Dec 4 2022 High pressure over the Ohio Valley will build eastward over the next couple of days, passing off the Mid Atlantic coast by Monday.
temps may be near or just below freezing across portions of north central and NRN AR. A warm front will begin lifting north on Mon into Mon night. though this time temps will be well above freezing to see all liquid precip.
(Today through Monday) The variable that changed this morning is the new cold front moving through very slowly(like malasses in winter).
620 AM EST Sun Dec 4 2022 High pressure will extend across the region through tonight. High pressure centered over southern Illinois early this morning will track east across the region today. Increasing rain chances and cloud cover accompany the return of moisture with fairly deep saturation of the profile through the low and mid levels.
934 AM EST Sun Dec 4 2022 High pressure will maintain dry weather through Monday. Periodic rain chances return Monday night, and continue through much of the week, with a series of low pressure systems. Previous Remaining stratocu N and E of PIT should continue to erode this morning with increasing subsidence under building high pressure, and backing wind flow. Otherwise, mostly sunny skies are expected today as the high continues building eastward. High pressure should maintain clear skies tonight, with radiational cooling as decoupling occurs. The high will reach the East Coast Monday, with srly flow on the wrn side.
High pressure over the Ohio Valley will produce sunny skies today. Next chance of precipitation will come Monday afternoon as a weak short wave pivoting around the southern periphery of the broad Canada trough will push a weak cold front across the cwa.
Issued by National Weather Service Greenville-Spartanburg SC 648 AM EST Sun Dec 4 2022 A series of small upper disturbances will give a good chance for rain early in the week, then deep ridging is expected with much lower rain chances and warmer late in the week.
528 AM EST Sun Dec 4 2022 High pressure over the Ohio Valley will build eastward over the next couple of days, passing off the Mid Atlantic coast by Monday.
These showers should move out by sunrise and winds will shift out of the southwest, ushering in warmer temperatures for this afternoon. These warmer temps will persist into the overnight hours due to ample cloud cover and southerly surface flow with lows in the upper 40s and low 50s. A disturbance moving across the region on Monday will bring strong winds to the higher terrain, and high winds will be possible in the Guadalupe and Delaware Mountains Monday afternoon. Current forecast for Midland Int'l is 76F, and the high temperature record is currently 79F.
A large winter type low pressure system just offshore will continue to brings periods of rain showers and snow showers to elevations above 3000 feet through Monday.
These partly sunny conditions this morning will allow us to warm into the low to mid 50s by around midday.
A boundary is draped across the Denver metro with temperatures warming into the low 50s on the warm side of the boundary, and mid-upper 40s on the cooler side. The strong flow zonal flow aloft will continue over CO today with a weak ridge of high pressure over CO. The ridge will flatten today with the axis shifting east of CO by this evening. Snow accumulations tonight of 1 to 4 inches possible on the higher west facing slopes. Across the urban corridor and northeast plains it will be dry, with temperatures near to slightly warmer than yesterday.
Temperatures will still be fairly mild tomorrow, before slightly cooler air builds in behind a passing cold front.
A weak pressure gradient as FL remains under the influence of broad high pressure.
As such, I have blended in some higher resolution models and the NBM to account for the lower morning temps and consequently, bringing down the high temperatures closer to the 20 degree mark for today. -Enriquez Previous Discussion: Upper level ridge will move through the area today bringing us a brief warm up with highs in the 20s north of the Missouri River and highs in the 30s south of the Missouri River. Later tonight a positively tilted trough moving down the West Coast will start bringing in a band of snow that will impact our far southwestern zones tonight and move up into the rest of the area on Monday.
301 PM EST Sun Dec 4 2022 * One more cool night in store * Low rain chances Monday High pressure, centered to the south and east of central Indiana, was providing mostly clear skies and cool temperatures to the area this afternoon. The high will slide off to the east tonight. With the high off to the east, winds will remain up a bit overnight. Feel that guidance is too warm again, so will go closer to the cooler of the guidance numbers once again. At the surface, a cold front will approach the area from the northwest. Warm advection will allow temperatures to get in the lower to middle 40s.
Recent water vapor satellite imagery and RAP upper air analysis indicates upper level zonal flow continues over the central plains between a strong cut-off ridge over central Mexico and a strong cut-off low over Canada. At the surface, high pressure will depart for greener pastures during the day Sunday, and a weak lee cyclone will develop in eastern CO in its wake. Moisture plume embedded within the upper level westerlies will keep skies cloudy through Sunday afternoon, only supporting highs in the low/mid 50s. Monday morning, the influence of the powerful upper level low in Canada will spread southward as a cold front is forced through our area.
Temperatures overnight will be much warmer as clouds and low level moisture will be on the increase.
High temperatures will be similar to today with highs in the low 80s across the majority of the region. Models continue to keep a very broad and deep high pressure dome in place over much of the region and into the west Atlantic waters, which gradually migrates eastward during he next couple of days. Meanwhile, as the ridge axis moves away from the area, pressure gradients will continue to decrease and allow for the generally ENE winds to remain light to moderate through the short term.
Tonight, the high pressure will continue to move off to the southeast as a trough approaches from the northwest. Monday, the weak trough/cold front will move through the area bringing a shift in the wind direction from SSW ahead of it to NNW behind it.
Surface map analysis illustrates decaying ridging across the Florida Peninsula, as a weak frontal boundary approaches north-central Florida. By mid- week, another high pressure will build in the western Atlantic, resulting in freshening breezes.
After sunset, clouds will start to fill back in as the low-level inversion re-strengthens this evening and another low-level stratus deck will re-develop. Tomorrow, a warm front will lift northward across the area and southwest winds will increase to 15-20 MPH. The stronger southwest winds will bring in a much warmer air mass, thereby helping temperatures to reach the mid to upper 70s.