Aikyam-Lab/Synoptic-Bench huggingface dataset:
Another mild to warm day is expected today with highs in the low to mid 70s, except for the 60s at the beaches. Mostly cloudy and cool tonight with lows in the mid to upper 40s across the Northern Ranchlands to the lower 50s across the Rio Grande Valley. A mix of clouds and sun will continue on Wednesday with highs again ranging from the the mid to upper 60s at the beaches to the low to mid 70s inland.
516 AM CST Tue Jan 30 2024 Generally dry and warmer conditions are expected across the Mid- South today but a cold front will knock highs back into the upper 40s and lower 50s for Wednesday.
High pressure remains over the area bringing chilly temperatures and dry conditions to the region. Cool conditions will remain in place this week as a reinforcing cold front sweeps across the state on Wednesday.
No accumulation expected, due to above freezing surface temperatures. Issued 405 AM CST Tue Jan 30 2024 Today through Wednesday: The recently passed occluded front has left low altitude moisture and stratus across the CWA, with sfc temperatures holding steady just above freezing. That said, it would only take a slight over-performance in forcing to nudge moisture into the DGZ (hence snow cannot be ruled out), but even then, the lowest 500 meters AGL are expected to be above freezing, and may melt it on descent. Drizzle should shut off from northwest to southeast this evening, and a gradual erosion of the low stratus is expected late tonight into Wednesday morning, allowing daytime highs in the low 40s and dry weather for the remainder of the period.
The prevailing high pressure, a dominant weather feature over the Northern Rockies, has been instrumental in fostering robust valley inversions. While slowly shifting eastward, the high pressure system continues to influence the weather pattern.
A short wave trof moving through the Ohio Valley Region will push a cold front through Alabama tonight. Cooler temperatures on Wednesday with highs ranging from the lower 50s north to upper 50s south.
526 AM CST Tue Jan 30 2024 - A weak cold front passes through this morning, cooling highs slightly in the 50s under partly cloudy skies.
503 AM CST Tue Jan 30 2024 (Today) Clear and calm conditions have allowed for radiational cooling to drop temps into the low 30s - high 20s area wide. With many locations already observing near zero dew point depressions and no winds, freezing fog is becoming increasingly likely. With several hours left in the night, additional radiational cooling of a degree or so is possible which would increase the potential for subsequent freezing fog development. We Will continue to monitor observations should freezing fog become more wide spread and warrant an advisory.
A narrow band of isentropic lift along the main trof axis was already producing mostly rain over the far southwest corner of Lower Michigan into northwest Indiana well before daybreak. Few of any traffic impacts or weather issues are expected with temperatures mainly above freezing. Temperatures will be well above normal with highs mainly in the 40s during this entire time as a blocking pattern remains firmly established. Multiple models continue to suggest 300 ft ceilings at both KFWA/KSBN this evening into the morning, but the lowest I see upstream at this point is 500-600 ft with 4-6SM visibility. Visibility could drop to 2-5SM once a low pressure system brings a cold front through both terminals (around 10-16z KSBN, 11 to 21z KFWA).
1020 AM MST Tue Jan 30 2024 - High pressure continues, with mild and dry weather today.
255 PM EST Tue Jan 30 2024 Weak high pressure will build in from the west today, but quickly depart offshore tonight.
The highest probabilities for records will be with the warm record lows. Through Wednesday, upper level ridging over the Central and Northern Plains will build east across the area. As this occurs, the 925 mb ridge axis will move east through the area late tonight and Wednesday morning. This should result in a rapid decrease in the low cloud cover across the area.
1124 AM CST Tue Jan 30 2024 - A weak cold front passes through this morning, cooling highs slightly in the 50s under partly cloudy skies.
Meanwhile the very stubborn upper level ridge remains overhead of the FA. Therefore, temperatures will be a few degrees cooler than today in the mid to upper 60s.
A cold front is moving into southeast Missouri and northeast Arkansas with a few sprinkles moving across western Kentucky and northwest Tennessee. As the cold front moves through the region this afternoon, some additional sprinkles will move across portions of west Tennessee. ARS Generally dry and warmer conditions are expected across the Mid- South today but a cold front will knock highs back into the upper 40s and lower 50s for Wednesday.
Cooler air remains over the area through the period with temperatures mostly in the upper 60s to low 70s for highs. Overnight lows fall into the low 40s west of the lake, mid to upper 40s interior and west coast, and low 50s along the east coast.
Temperatures have already surpassed the NBM 90th percentile for a majority of the area, with current temperatures in the upper 40s (toward Central MO), ranging in the 50s for a majority of the area, and reaching into the low 60s for portions of far southeast KS. Despite the dry airmass in place, increasing moisture exists in the lower 1 km along with some weak omega. Continued to include low pops (less than 15%) for areas east of Hwy 65 to accommodate this low potential. With the overnight lows reaching below freezing (upper 20s to low 30s) for the majority of the area, some locations could experience freezing fog if this does occur.
This resulted in a slightly warmer solution with even some small breaks in clouds this afternoon. Will continue isolated shower mention in the forecast through mid-evening An unseasonably strong mid-level ridge across the Rockies today will drift eastward across the central Great Plains while slowly suppressing southward through Wednesday.
No significant travel issues have been reported, but accumulation of sleet and even a touch of freezing rain has caused some slick spots in areas. Behind the main area, left over low level forcing has resulted in an expanding area of mainly drizzle as temperatures slowly warm above freezing. A narrow band of isentropic lift along the main trof axis was already producing mostly rain over the far southwest corner of Lower Michigan into northwest Indiana well before daybreak. Few of any traffic impacts or weather issues are expected with temperatures mainly above freezing. Temperatures will be well above normal with highs mainly in the 40s during this entire time as a blocking pattern remains firmly established.
Both consensus of short term high res models and BUFKIT overviews confirm the low clouds and drizzle and fog will persist. Temperatures this afternoon will top out in the upper 30s with lows tonight in the lower 30s. Can't rule out a little freezing rain mixing in either. As the low passes through during the middle of the day, the loss of mid-level moisture, featuring dry air in the DGZ and really anywhere colder than about -5C, will limit precipitation to drizzle or sporadic light showers.
1220 PM CST Tue Jan 30 2024 (Today through Wednesday) An H5 ridge axis to our west will cross the region on Wednesday, with NW flow aloft today becoming SW by the end of the short term period. Widespread cirrus overhead early this morning will decrease in coverage today, especially over northern portions of the region, and we anticipate a warmer than normal day with highs reaching the low 70s in most locations.
High temperatures this afternoon around 70 to the lower 70s look good.
The cold front will be east of the area by midnight, and cooler air will begin to filter back in. Clouds will decrease during the morning hours with skies becoming sunny again as a large footprint of high pressure builds into the region.
This will help cooler air filter into our region Wednesday with high temperatures in the 55 to 65 degree range. Mid to late week: An omega block over the CONUS will keep deep ridging for our area resulting in quiet weather through the end of this week with temperatures generally above normal during the day. These conditions will likely offer the chance to radiate overnight, thereby keeping overnight lows on the cooler side.
1101 AM CST Tue Jan 30 2024 (Today through Wednesday Night) High pressure was situated to the east of AR early this mrng, resulting in mainly a light W/SW wind flow acrs the FA. Meanwhile, a weak sfc trof was apchg NW AR, along with a CDFNT further to the N. Predawn temps ranged fm the mid 30s to the mid 40s in most areas, with lower/mid 50s in some of the higher elevations of NW AR. Once the CDFNT shifts south of AR, cooler air wl return to much of the Mid-South for Wed.
1244 PM EST Tue Jan 30 2024 Main focus for the morning update was adjusting hourly temperatures as the high clouds and fog have lead to a slower warm-up across portions of the area. This upper low will track across our area tonight, but will have limited moisture to work with. Thermal profiles indicate the precipitation will change over to snow over the higher terrain, and the high elevations will likely see some light snow accumulations. NBM has only about a 20- 40% chance of exceeding 1 inch of snow over the higher elevations, while the HREF is more bullish. Will generally forecast up to 2 inches mainly at elevations above 3000 feet, with locally higher amounts possible over the highest peaks. For now will just include this higher elevation light snow potential in the HWO.
Trending drier with slightly cooler temperatures Wednesday. This will lead to a weak low-pressure system bringing increased precipitation chances across the area this afternoon and through the night. Minor height falls will result in high temperatures a few degrees cooler than today's observations, however, the clouds overnight will keep lows above freezing for most valley locations - hence the higher snowfall limited to high elevations.
Mostly sunny skies will allow temperatures to warm as high as the low 60s across central Georgia with highs in the upper 50s across north Georgia. As the attendant cold front passes through the forecast area through the early morning hours on Wednesday, temperatures will drop into the 30s for northern locations and the 40s for areas across central Georgia.
Upper trough from the Great Lakes region will continue to drop SSEward tonight then thru the Carolinas Wed. To end the week, minor upper ridging is expected to move through the region as the low level flow becomes easterly slowly moderating temps and moisture into the weekend.
1120 AM CST Tue Jan 30 2024 (Today through Wednesday afternoon) Another gorgeous day is in store for West Texas and southeast New Mexico as upper level ridging holds in place. The rain chances are short lived and amounts stay on the lower side.
High temperatures will warm to the high 60s to low 70s. Otherwise, dry weather will continue through the period with warmer than normal temperatures today and near normal tonight. This feature will continue dropping southeast through tonight and develop a closed low over the southern Appalachians by Wednesday morning. In the wake of the cold front a >1024mb high will build into the CWA from the northwest resulting in near normal morning lows Wednesday.
(Rest of Today) After a chilly start to the day across the Tennessee Valley, clear skies and sunshine have allowed for temps to gradually warm back up above freezing. The lone exception is along the TN River and across northeast AL where some river and valley fog/freezing fog still persists. As for the rest of the day, a low pressure system centered over the Ohio River Valley this morning will slowly drift ESE. A cold front positioned to its south will traverse the local forecast area late this afternoon into the evening.
134 PM EST Tue Jan 30 2024 An upper low pressure system will move over the region tonight and Wednesday with a few showers. Dry weather and slightly warmer but seasonable temperatures will then continue into the weekend.
(Tonight) Cloud cover has begun to increase across TN as a cold front pushes south and east through the Tennessee Valley.
1044 AM EST Tue Jan 30 2024 Main focus for the morning update was adjusting hourly temperatures as the high clouds and fog have lead to a slower warm-up across portions of the area. This upper low will track across our area tonight, but will have limited moisture to work with. Thermal profiles indicate the precipitation will change over to snow over the higher terrain, and the high elevations will likely see some light snow accumulations. NBM has only about a 20- 40% chance of exceeding 1 inch of snow over the higher elevations, while the HREF is more bullish. Will generally forecast up to 2 inches mainly at elevations above 3000 feet, with locally higher amounts possible over the highest peaks. For now will just include this higher elevation light snow potential in the HWO.
There are a few breaks in the clouds towards south western PA due to south easterly downslope flow off of the Laurel ridge tops. An area of low pressure over the Upper Peninsula of Michigan continues to move southeast today and is expected to spread some intermittent light snow into the region tonight.
1113 AM CST Tue Jan 30 2024 Updated aviation portion for 18Z TAF issuance - Scattered light freezing drizzle and snow may cause locally slippery roads this morning, mostly over central and north central Wisconsin. and Wednesday An upper level trough was moving across the western Great Lakes at 3am, while a weak cold front was exiting eastern Wisconsin. The upper trough was producing scattered light rain and snow was reported in central and northcentral Wisconsin. The models insist that there will be some clearing late tonight and Wednesday as upper ridging edges in from the northern Plains. Assuming there is some sunshine Wednesday, we should see highs in the lower 40s.
(This afternoon through Wednesday Night) With passage of surface frontal system as remainder of today progress, an upper level low will move across Upper Cumberland Region as evening hours approach and through early overnight hours tonight. " Dry conditions will prevail from late evening hours tonight through Wednesday per building ridging influences surface and aloft. Lows tonight will be slightly warmer than those experienced this morning, mainly in mid 30s. Lows once again will fall below freezing on Wednesday night, with lowest lows in mid 20s higher elevations of Upper Cumberland Region.
Main trough responsible for the mixed morning precipitation continued to drift east with extensive cloud cover and some areas of drizzle persisting in some areas. Models continue to indicate weak lift and plenty of moisture in the low levels, but likely residing below the DGZ to bring chances for some light rain or drizzle. Once we get by tonight, conditions will improve with little if any precipitation expected as high pressure will take hold with a return to generally above normal temperatures.
High pressure will remain over western Montana and north central Idaho through Wednesday. Dense freezing fog will be the main concern, and similar to this morning, icy conditions will develop again overnight tonight in areas that experience fog. Freezing fog advisories have been extended into Wednesday morning for the Missoula/Bitterroot and Flathead/Mission valleys and further additions may be necessary for other valley locations. In addition to freezing fog, a surge of atmospheric moisture is expected to clip northwest Montana this evening into the overnight hours. Locations along and north of Highway 2 (Libby, Kalispell, Eureka, etc) have a 30 to 50 percent chance of receiving measurable precipitation, which would likely fall as freezing rain.
Low pressure was located over northern lower Michigan early this afternoon and was what brought light snow showers and drizzle to the Northland last night into this morning. High pressure across the Rockies was building northeastward into the Upper Midwest. This ridging will allow warmer temperatures to filter northward tonight and Wednesday.
Winds will gradually turn westerly to northwesterly this evening and then increase to 10-15 knots with a few higher gusts from the north early Wednesday morning following the passage of a cold front.
- Warmer temperatures on the way, with highs each day generally in the mid 40s to mid 50s from Wednesday through the remainder of the forecast period.
Precipitation should generally remain in the form of rain across the lowlands, but a rain/snow mix is expected in the mountains, with generally all snow in the highest elevations. Most precipitation should be tapering off shortly after sunrise, but light snow showers can linger in the higher elevations. Only an inch or two of snow accumulation will occur in the highest elevations through late Wednesday. Most of the area will be socked in clouds Wednesday due to northwest flow behind low pressure. Expect seasonably chilly temperatures with highs in the middle 40s across the lowlands and the upper 30s to lower 40s in the mountains. Other than sprinkles or flurries lingering mainly across the east Wednesday night behind the departing low, the area should gradually start to dry out as high pressure briefly nudges in from the west.
Light to moderate rain in the lower elevations with minor impacts possible.
1033 AM CST Tue Jan 30 2024 (Rest of Today) After a chilly start to the day across the Tennessee Valley, clear skies and sunshine have allowed for temps to gradually warm back up above freezing. The lone exception is along the TN River and across northeast AL where some river and valley fog/freezing fog still persists. As for the rest of the day, a low pressure system centered over the Ohio River Valley this morning will slowly drift ESE. A cold front positioned to its south will traverse the local forecast area late this afternoon into the evening.
Winds will back from north-northeast to northwest during the day; while this pattern typically indicates increased dew points and warmer temperatures, the aforementioned clipper low will sustain cold air advection during the day. From synopsis, high pressure centered near the northwestern Gulf coast will maintain light breezes this afternoon through tomorrow. A reinforcing cold front will push through Keys waters late Wednesday, accompanied by briefly freshening northwesterlies.
Issued 232 PM CST Tue Jan 30 2024 Tonight through Wednesday night: As drizzle and perhaps a couple snowflakes move out of the area this afternoon behind a filling low, expect winds to decrease and temperatures to begin to fall overnight to just below freezing. The highest temperatures will be dependent on how quickly the cloud deck whittles away. Wednesday night, expect lows just above freezing, with a few spots in the Kettle Moraine falling to 32 degrees.
1232 PM EST Tue Jan 30 2024 A weak frontal boundary that separated slightly cooler air over eastern PA from milder air trying to push into the region from the Ohio Valley, will lead to a cloudy morning followed by some breaks of sunshine across the Central Mountains and Susquehanna Valley this afternoon. An area of low pressure over the Upper Peninsula of Michigan early today will move southeast and spread some intermittent light snow into the region tonight.
(This evening through Wednesday) Upper level ridging will result in above normal temperatures along with light winds across West Central Texas through the next 24 hours.
1024 AM MST Tue Jan 30 2024 1222 AM MST Tue Jan 30 2024 - Very mild and dry through mid week, with slight cooling late week - Pattern change brings good chances for precipitation (mainly rain) this weekend, with some minor snow accumulations in the Black Hills and parts of northeast WY Water vapor shows large upper ridge extending from the Great Basin through the Northern Rockies, with upper trof just offshore the west coast. Thermal ridge peaks overhead today into Wednesday, with many plains areas reaching into the 60s both days. Slightly cooler temps (although still well above average) expected later in the week as thermal ridge shifts east.
High pressure will build into the region tonight bringing cooler and drier air.
It looks like we start off with the low clouds in most areas (there could be lingering areas of fog as well). An increasing southwest flow is then likely to mix out at least some of the low stuff during the day leading to partly sunny skies in most areas (hopefully).
1104 AM CST Tue Jan 30 2024 (Today and tonight) Upper level ridging will continue to build over the area today, helping to keep our temperatures above normal and even increase today's highs by a degree or two in some areas. Wind speeds will remain light thanks to the high pressure and weak pressure gradient at the surface, but the wind direction will be a bit erratic. A weak cold front will move through the northeastern half of our area late this morning and early this afternoon.
(This evening through Wednesday night) Dry weather along with above normal to well above normal temperatures will persist through Wednesday night as an upper level ridge of high pressure moves across and to the east of the plains states.
(Tonight through Wednesday night) An H5 ridge sharpens over TX in the short term. Upstream from this ridge, upper troughing in the Eastern Pacific is funneling up some scattered high clouds while a weak pressure gradient at the surface holds the dry low level air in place. The result is warmer than normal temperatures in the afternoon and near normal morning temperatures. As the upper ridge nudges east Wednesday, the light and shifty surface winds become a bit more organized out of the SE but still remain light.
Looking at satellite imagery, high pressure is still in place over the area. However, high pressure has weakened slightly as the high pressure ridge has moved east of the area with weak southwest flow in place. Tonight with clear skies and high pressure, patchy dense fog is likely. Wednesday morning there will little, if any fog, across the area as high pressure continues to weaken, cloud cover starts to move in and southerly winds start to pick up.
502 PM CST Tue Jan 30 2024 (This evening through Wednesday night) Dry weather along with above normal to well above normal temperatures will persist through Wednesday night as an upper level ridge of high pressure moves across and to the east of the plains states.
522 PM CST Tue Jan 30 2024 (This afternoon through Wednesday Night) With passage of surface frontal system as remainder of today progress, an upper level low will move across Upper Cumberland Region as evening hours approach and through early overnight hours tonight. " Dry conditions will prevail from late evening hours tonight through Wednesday per building ridging influences surface and aloft. Lows tonight will be slightly warmer than those experienced this morning, mainly in mid 30s. Lows once again will fall below freezing on Wednesday night, with lowest lows in mid 20s higher elevations of Upper Cumberland Region.
722 PM EST Tue Jan 30 2024 An upper low pressure system will move over the region tonight and Wednesday with a few showers. Dry weather and slightly warmer but seasonable temperatures will then continue into the weekend.
925 PM EST Tue Jan 30 2024 A weak area of low pressure will track well south of Pennsylvania tonight.
536 PM CST Tue Jan 30 2024 High pressure will build into the region tonight bringing cooler and drier air.
959 PM EST Tue Jan 30 2024 An upper low pressure system will move over the region tonight and Wednesday with a few showers. Dry weather and slightly warmer but seasonable temperatures will then continue into the weekend.
814 PM EST Tue Jan 30 2024 A weak area of low pressure will track well south of Pennsylvania tonight.