Aikyam-Lab/Synoptic-Bench huggingface dataset:
1048 PM CST Tue Dec 5 2023 Strong CAA continues across the Mid-South in the wake of a cold front that exited the region earlier this evening. A good deal of post-frontal stratocu will drop south into West TN and NE MS overnight which will keep temps a couple of degrees warmer than areas further west where clear skies will prevail. The cold front which has been moving across the Mid-South will exit the region tonight. Under sunny skies, Wednesday's high temperatures will average 5 to 10 degrees cooler than normal.
Cool, dry conditions expected for the next couple of days, as a cold front has moved through and high pressure builds over the southeast.
940 PM CST Tue Dec 5 2023 Strong CAA continues across the Mid-South in the wake of a cold front that exited the region earlier this evening. A good deal of post-frontal stratocu will drop south into West TN and NE MS overnight which will keep temps a couple of degrees warmer than areas further west where clear skies will prevail. The cold front which has been moving across the Mid-South will exit the region tonight. Under sunny skies, Wednesday's high temperatures will average 5 to 10 degrees cooler than normal.
1017 PM MST Tue Dec 5 2023 Upper ridge axis moves into the central Rockies tonight and across the central plains tomorrow.
1023 PM MST Tue Dec 5 2023 -Warm and dry weather continues for the next couple days under mostly clear skies as a ridge moves across the region.
Subsidence associated with high pressure building into the midwest is helping to dissipate the stratus sooner than anticipated, with pockets of clearing noted closer to Lake Michigan. Any areas that are able to take advantage of clearing may end up seeing low temps a degree or two cooler than currently expected, but overnight lows will generally be in the mid to upper 20s.
1029 PM CST Tue Dec 5 2023 (Tonight through Wednesday night) A NW flow pattern aloft over the plains states will shift east tonight as the base of an Ern CONUS upper trough digs into the Deep South and allows for building heights over TX.
The 03Z HRRR along the 00z NAM show a better potential for fog over the inland Coastal Bend and southeast Brush Country later tonight ahead of the weak high pressure pushing into the area. (Tonight through Wednesday night) The short term forecast period features weak mid-level ridging over the area with a band of vorticity remaining mainly south of the area. For tonight, will see surface ridging build back in with an associated weak back door cold front oozing into the region. The lower dewpoints from the front will be short lived as we will shift winds around to the east by late in the day tomorrow and further around to the southeast by tomorrow night. Daytime high temperatures on Wednesday will remain near to slightly above normal, in the lower to mid 70s.
More numerous snow showers are expected across the Laurel Highlands and the higher terrain of West Virginia.
1015 PM CST Tue Dec 5 2023 (This afternoon through Wednesday night) A weak meteorological discontinuity (cold front) is draped across southeast New Mexico and the Permian Basin.
1245 AM EST Wed Dec 6 2023 Light precipitation will be decreasing in coverage tonight as low pressure exits to the east.
Meanwhile, a low pressure system is strengthening to the east of the Carolinas. These two systems will drive a cold front through the Keys overnight. Nevertheless, dewpoint values currently in the lower 60s across the Keys will fall into the 50s by daybreak. Fresh breezes and cooler, drier weather are expected Wednesday and Wednesday night.
Today through Tuesday Tranquil conditions will continue across much of the CWA today, as a broad ridge extends across the Northern Rockies/Northern Plains.
The winds will increase some late tonight(gusts to 30 mph possible) as the low level jet increases. Highs today will be in the upper 60s to lower 70s and lows tonight will be warmer, well above freezing.
1057 PM CST Tue Dec 5 2023 (Tonight) The passage of a cold front tonight will bring low stratus and low chances (10-30%) for some rain showers in our northeast. As the previous shift mentioned, expecting this activity to continue into the overnight hours, with perhaps a few snow flurries up in the higher elevations. Temperatures across the Tennessee Valley range from around 50 degrees to the lower 50s; although, a couple spots have dipped into the mid 40s late this evening.
1052 PM CST Tue Dec 5 2023 (Tonight through Wednesday night) Key Messages: -High pressure builds across Deep South Texas. Temperatures will remain near seasonal norms with daytime highs in the mid 70s and overnight lows in the mid 50s across the Ranchlands to low 60s across the lower Valley.
214 AM MST Wed Dec 6 2023 MORNING DISCUSSION: At 500 hPa, a ridge continues to dominate much of the western-half of CONUS' weather, bringing well-above normal temperatures across northeast Montana. Meanwhile, a 500 hPa trough off the Pacific Northwest moves onshore Wednesday night and slides off to the east Wednesday night. At the surface, a cold front will move through northeast Montana from Thursday morning.
Dry conditions and warmer temperatures continue through Thursday.
With a weak upper ridge axis just to our west, the combined subsidence will continue to keep benign conditions in place. Southerly surface winds and southwesterly flow aloft will return overnight as ridging moves east of the area. Overnight lows should range from the lower 30s to near 40 degrees F.
Water vapor imagery currently shows the upper level trough over the eastern CONUS and the upper level ridge over the Intermountain west this morning. Over Baja California an area of weak low pressure resides where it is expected to become absorbed into the main flow this morning. This downslope component to the winds will aid in WAA across the FA leading to slightly warmer temperatures than yesterday with highs in the upper 60s to low 70s expected. In addition to these breezy conditions, increasing low-level clouds overnight will limit radiational cooling allowing for warmer overnight lows in the upper 30s and 40s across the FA.
413 AM PST Wed Dec 6 2023 A fading upper level ridge and an approaching cold front will contribute to warmer temperatures Wednesday with morning fog possible this morning. There is a chance for precipitation in the northern portions of the San Joaquin Valley later today as the cold front moves through.
Winds will turn onshore today, resulting in an increase in moisture and slightly warmer temperatures for Thursday.
For today, upper level ridge migrates eastward through the Rockies, with pronounced mid-level thermal ridge across the High Plains.
The low pressure system bringing this moisture will continue to work its way eastward while a high pressure ridge builds over the Tennessee Valley. Temperatures will continue to cool through tomorrow night with lows dropping into the low 30s and high 20s.
Typical December weather returns Thursday into the weekend as a series of cold Pacific troughs impact the Northern Rockies. The first Pacific trough and cold front will lower snow levels to 3000-3,500 feet Thursday morning, with moderate snow impacting travel across mountain passes.
338 AM CST Wed Dec 6 2023 - Warmer temperatures are expected today and tomorrow across north central Kansas and south central Nebraska.
Much warmer temperatures will remain in place through Thursday as dry conditions prevail.
305 AM MST Wed Dec 6 2023 Well above normal temperatures will again be seen today with highs in the upper 70s to lower 80s across the lower deserts.
More numerous snow showers are expected across the Laurel Highlands and the higher terrain of West Virginia. Light snow chances are expected overnight and Thursday morning as a warm front moves across the region.
418 AM EST Wed Dec 6 2023 Cooler weather in store for today and Thursday, with breezy winds this afternoon.
The blanket of clouds has helped keep temperatures in check, and readings should remain in the low/mid 30s through daybreak.
A fading upper level ridge and an approaching cold front will contribute to warmer temperatures Wednesday with morning fog possible this morning. There is a chance for precipitation in the northern portions of the San Joaquin Valley later today as the cold front moves through.
602 AM CST Wed Dec 6 2023 Today and Tonight: With high pressure moving into the region and northwest flow aloft, dry weather will continue across the forecast area through tonight. Our lows in the morning are likely to be at or below freezing, especially in the typically colder spots.
Occasionally gusty southerly winds 10 to 15 mph tonight combined with the periodic cirrostratus will result in low temperatures some 5 to 15 degrees warmer than previous mornings. A couple of lead disturbances will continue breaking down the ridge with prevailing, more progressive zonal flow expected through Thursday afternoon. However, some periodic periods of partial sunshine and increasing low level warm advection will parlay into afternoon high temperatures in the upper 60s to mid 70s in the west, to the lower to mid 60s in the east. No precipitation is expected as the low levels will continue to remain fairly dry, though surface humidity will be on the gradual increase.
Well above normal temperatures will again be seen today with highs in the upper 70s to lower 80s across the lower deserts.
347 AM CST Wed Dec 6 2023 Today and Tonight: With high pressure moving into the region and northwest flow aloft, dry weather will continue across the forecast area through tonight. Our lows in the morning are likely to be at or below freezing, especially in the typically colder spots.
This is in advance of an upper trough that is expected to come ashore later this afternoon. The upper trough will come ashore later this evening and into tonight. Amounts in valley locations are expected to remain light with less than a half inch expected, though an inch or two will fall across the high terrain. This is expected to bring light, accumulating snow to the higher elevation areas of northern Elko county as well as the Ruby Mountains.
Lows will be in the low 20s to the low 30s, with the cold spots in the typical valley locations. The mid- to upper-level trough will depart toward the western Atlantic tomorrow allowing for low-level ridging to gradually move to our east. Ridging will continue east tomorrow night with flow aloft becoming southwesterly.
Along with the freshening breezes, cooler and drier weather is quickly filtering in. Likewise, we are seeing dew points crashing with most locations reporting values in the mid to upper 50s, which will continue to fall through the day! Dry and cooler air will continue to filter in behind this morning's cold front. This will keep daytime temperatures today comfortably in the lower 70s with dew points ranging from the mid 40s to the mid 50s. Thereafter the high will slowly continue to trek eastward out across the western North Atlantic. As the high moves out over the Atlantic, moisture will get pulled northward from the Caribbean Sea and return across the area.
602 AM CST Wed Dec 6 2023 - Warmer temperatures are expected today and tomorrow across north central Kansas and south central Nebraska.
A cold front continues to push through south Florida. High pressure builds in behind this front ushering in some cold and dry air into the region tonight. No freezing temps are expected.
A cold front will move through the area late this evening and overnight bringing gusty winds and cooler temperatures.
155 PM MST Wed Dec 6 2023 Afternoon Discussion: Today through tonight: A strong warm front has allowed very warm temperatures to build in this afternoon, with the record high temperature in Glasgow being broken already today.
Low pressure will bring rain this weekend. High pressure will bring tranquil weather to the middle Ohio Valley tonight. Southwesterly return flow around high pressure over the southeastern United States will provide warmer temperatures Thursday and Thursday night. Clouds will decrease on Thursday as the low levels become warm, dry, and well-mixed.
/14 (Now through Thursday) An upper level trough axis extends across the eastern CONUS early this morning. Highs today will be cooler in the wake of the front with readings forecast to range in the mid 50s to around 60 degrees. Highs on Thursday may trend a few degrees warmer, with most locations forecast to reach around 60 degrees or the lower 60s.
/Issued 1122 AM CST Wed Dec 6 2023/ /Through Thursday/ Ridging aloft coupled with high pressure across the region will keep North and Central Texas under fairly tranquil weather conditions. A weak front has pushed southward across East Texas, effectively keeping our afternoon temperatures cooler east of I-35 and warmer to the west. The high clouds coupled with the return of southerly winds will keep temperatures in the 40s throughout the region.
Warmer temperatures arrive tomorrow with highs near 60.
1040 AM CST Wed Dec 6 2023 (Issued 1035 AM CST Wed Dec 6 2023) GOES RGBs indicate the low-level stratocumulus have been slow to clear out (from west to east), and the broken cirrus clouds overspreading the CWA have plenty of coverage upstream and are here to stay (as expected). The blanket of clouds has helped keep temperatures in check, and readings should remain in the low/mid 30s through daybreak.
Pattern Synopsis: Upper ridge pushing into the eastern Great Lakes tonight with winds backing southwest as return flow develops over northern Michigan. A quick moving clipper will slide just north of Lake Superior through tonight, spreading a light mix of precipitation across northern parts of the area as a warm front moves across northern Michigan. Although a weak weather system - a myriad of precipitation types with marginal thermal profiles could result in some slick roads (especially bridges and overpasses). Much lighter QPF south of the bridge. Just how warm it actually gets is somewhat tied to the strength and track of the expected area of low pressure early this weekend which is still a bit uncertain. However, there are a few members that have a deeper system but with a track to our northwest (leaving us in the warmer air).
(This evening through Thursday) An upper level trough will move through the Rockies and into the central plains tonight into tomorrow, which will cause pressure falls in the southern plains, resulting in an increase in southerly flow, increasing moisture, and warmer temperatures tonight.
At the surface, a gradually sharpening trough was delineated area-wide and will remain intact throughout the overnight hours as lee cyclogenesis occurs across the west-central Great Plains as a series of smaller-scale perturbations round the base of the amplifying, mid/upper-level trough to the west and eject over the region. The southwesterly breeze combined with the cirrus shield will offset the magnitude of radiational cooling, with temperatures heading into tomorrow morning nearly 10 degrees warmer than this past morning area-wide. Isallohypsic tendencies will gradually increase throughout the day tomorrow as the mean troughing expands over the western U.
Today and Tonight: With high pressure moving into the region and northwest flow aloft, dry weather will continue across the forecast area through tonight. Our lows in the morning are likely to be at or below freezing, especially in the typically colder spots.
- Warmer temperatures are expected today and tomorrow across north central Kansas and south central Nebraska.
Fresh to strong northerly steering flow and associated cold advection, coupled with ample thick high-level cloud cover advecting from the west, kept temperatures generally in the lower 70s at most island communities today. In the backyard here at White Street, the high temperature of the day thus far actually occurred at midnight, with temperatures hovering right around 70F even at this late afternoon hour. High pressure will slide eastward across the Southeast over the next several days.
1150 AM CST Wed Dec 6 2023 Crisp and cool conditions persist this morning, as Canadian sfc ridging remains anchored from the Mid MS Valley SW into ECntrl TX. This is the result in atmospheric column cooling in the lower 7kft in wake of an upper trough passage that continues to deepen over the Gulf Coast states (per the 00Z/12Z KSHV raobs). Sfc ridging in place over the area this afternoon will linger through this evening before easing off to the E late, although a return Srly low level flow will not return any low level moisture (cu field) back into possibly mid to late afternoon Thursday over the Wrn sections of E TX into SE OK.
Only a minor update to the forecast has been required, to account for the high clouds drifting across far northeast Oklahoma and into far northwest Arkansas.
The cloud cover combined with the northerly steering flow consistent with cold advection will keep temperatures from moving out of the lower 70s this afternoon, several degrees below normal for this time of year. Fresh northerly will continue for this afternoon and tonight, along with drier and cooler weather.
(This evening through Thursday) High pressure will slowly move east across the Southeastern United States tonight into Thursday allowing for the clear skies and dry conditions over West Central Florida. Lows tonight are forecast to fall into the mid to upper 30s over Nature Coast areas to the lower to mid 40s over the Tampa/St. Highs on Thursday will be a little bit warmer than today. In the Nature Coast, the highs will be around 70 increasing to lower 70s over the Tampa/St.
(This afternoon through Thursday) A chilly and sunny late morning/early afternoon is underway across Central Alabama as a broad region of high pressure builds east across the Lower MS River Valley. Surface ridging centers over the area tonight which will cause winds to go calm, with clear skies, so expect another frigid night. Leaned towards the cooler side of guidance with forecast lows in the mid 20s northeast to lower 30s elsewhere. A warming trend will begin tomorrow as the ridge axis begins to shift east of the area and low-level winds become west to southwesterly.
/NEW/ /Through Thursday/ Ridging aloft coupled with high pressure across the region will keep North and Central Texas under fairly tranquil weather conditions. A weak front has pushed southward across East Texas, effectively keeping our afternoon temperatures cooler east of I-35 and warmer to the west. The high clouds coupled with the return of southerly winds will keep temperatures in the 40s throughout the region.
1241 PM EST Wed Dec 6 2023 High pressure moves into the region Wednesday, allowing for drier conditions for the end of the working week. By Wednesday evening, the high pressure will have scooted east over the Tennessee Valley region, keeping the ILN FA on the northern edge of the high. By Thursday morning, the high pressure will have scooted east toward the Appalachians and the Ohio Valley will be situated in a region of strong southwesterly flow in between the high to our southeast and a developing low pressure off to our west. Highs on Thursday reach the low 50s with clouds clearing out during afternoon hours.
High pressure is centered over Arkansas right now with light north winds over our area.
We're seeing some erosion of the cloud deck as sfc and upper ridging build in, and we'll look for clouds to scatter out after sunset. The rest of tonight and Thursday the ridging will be firmly in control, finally allowing us a mostly sunny Thursday. After a seasonably chilly start, just either side of the freezing mark, rising heights and thicknesses will allow temps to recover quite nicely, with an afternoon max several degrees above climo under plenty of sunshine. With ridging aloft and a strong high off to the southeast, it will also remain dry. Highs will increase to around 60 later in the afternoon and southerly flow will help increase dew points from the low 30s Fri morning to the 40s by the late afternoon/evening.
(This evening through Thursday) Key Message: Cool temperatures today and tonight before warmer weather arrives on Thursday. After the sun rises temperatures should warm up quickly with abundant sunshine and mid ridging building helping to warm temperatures back up into the 50's.
(Tonight through Thursday night) The mid-level synoptic pattern flattens out across South-Central Texas in the short term as an upper level trough establishes and digs across the Intermountain West. At the surface, high pressure will continue to move eastward and this will allow for surface winds to become more southeasterly into tonight and southerly on Thursday.
These clouds are rotating around the back side of the low pressure system moving off the Mid Atlantic coast this afternoon. The ridge centered over the southern/mid MS river valley will move east becoming centered over GA Thu. This ridge will keep the southeastern states dry through the short term.
Warmer temperatures are expected Thursday with highs in the mid 60s (eastern portions of fa) to the mid 70s (western portions of the fa). The gusty winds, warmer temperatures, and low RH could lead to some near elevated fire wx conditions in parts of western OK Thursday.
Overview: Water vapor satellite imagery/heights showed a broad 500mb ridge over the western half of the U. The surface warm front is over western Minnesota with temperatures in the mid and upper 50s with 60s farther west. locally, temperatures had warmed into the lower and mid 40s with gusty southwest winds. Much above normal temperatures for Thursday: The mid-tropospheric ridge will continue to build into the area through Thursday with the warm front pushing east. An upper level trough moving across the western U.
650 PM EST Wed Dec 6 2023 High pressure builds overhead for Thursday with similar temperatures to Wednesday.
Low pressure will bring rain this weekend. A slight lull in the winds this evening has allowed temperatures to drop into the low 30s. As this high shifts southward overnight, expect winds to increase through daybreak, especially in elevated terrain and wide open areas. Temperatures may actually increase a few degrees through daybreak as the winds mix out the cooler temperatures at the surface. Southwesterly return flow around high pressure over the southeastern United States will provide warmer temperatures Thursday and Thursday night. Clouds will decrease on Thursday as the low levels become warm, dry, and well-mixed.
/NEW/ /Through Thursday Night/ The high pressure ridge that has been providing us with cool and tranquil weather will continue moving off to the east through the overnight hours. This will contribute to the start of a gradual warming trend as we end the week, with afternoon highs a few degrees warmer than they were today and overnight lows rising into the mid 50s tomorrow night.
552 PM CST Wed Dec 6 2023 (This evening through Thursday) An upper level trough will move through the Rockies and into the central plains tonight into tomorrow, which will cause pressure falls in the southern plains, resulting in an increase in southerly flow, increasing moisture, and warmer temperatures tonight.
306 PM MST Wed Dec 6 2023 After a day of some record warmth across the area, cooler and more active weather will push into the area overnight tonight.
Another record setting day as temperatures have climbed into the lower 80s across southcentral AZ. Warmer than normal temperatures will continue tomorrow ahead of a noticeable cooling trend more towards normal going through this upcoming weekend.
755 PM CST Wed Dec 6 2023 Evening surface analysis depicted ridging stretched from the lower Mississippi Valley northeast into the upper Ohio Valley.
327 PM MST Wed Dec 6 2023 Another record setting day as temperatures have climbed into the lower 80s across southcentral AZ. Warmer than normal temperatures will continue tomorrow ahead of a noticeable cooling trend more towards normal going through this upcoming weekend.
-Cooler temperatures build in over the weekend following a cold frontal passage Thursday afternoon.