Aikyam-Lab/Synoptic-Bench huggingface dataset:
322 AM CDT Fri Sep 10 2021 After a cool start this morning, we're headed back to summery heat today as mid level warm air advection and strong upper ridging build into the Central U. Given the favorable conditions and recent biases, will continue to trend temperatures warmer, toward the 75th percentile of NBM guidance. On Saturday, a weaker NE-SW oriented cold front tracks through the region, likely setting up south of the I-90 corridor by mid afternoon. With the low level jet pooling moisture ahead of the front, it will be a hot day south of I-90 with dew points in the 60s and temperatures peaking in the 90s. Further north behind the front, it'll be a bit cooler and drier with highs in the 80s and a northeast breeze.
Winds are currently light and variable and temperatures are in the lower 80s, with a few larger islands recording temperatures in the upper 70s. A weak ridge will continue to extend across our area until high pressure begins to build in on Saturday night.
then as high pressure shifts east. " So in that spirit, an extraordinarily As an expansive mid/upper ridge over the western CONUS gradually builds east this period, daily highs will increase each day with above average readings area wide.
259 AM CDT Fri Sep 10 2021 An area of low pressure and broad midlevel trough currently over Alberta will approach the region today. A warm front, along with ridging aloft, will push into the area ahead of the low pressure with high temperatures in this CWA reaching the mid 80s, to the mid 90s. The low pressure system will slide southeastward across the region Friday night, bringing a noticeable shift in the wind direction to the northeast. While Saturday will be cooler, the 0Z model guidance has increased highs 3 to 5 degrees since yesterday's 0Z run.
The amplified upper level ridge centered over New Mexico today will become increasingly elongated across the southern half of the CONUS through the weekend as upper level short wave energy moves across the northern tier of the CONUS and adjacent territory of southern Canada. Persistent height falls across the northern states will further break down the upper ridge.
Even warmer conditions will be seen for Sat as SRLY flow increases. and an upper level ridge to the west expands further east closer to AR.
Following the cold front passage, high pressure and drier air are building into the area will remain in place through the weekend. Dew points and temperatures are quickly falling across the Upstate following the cold frontal passage. The northern and western Midlands and Pee Dee will see morning lows in the upper 50s with the rest of the forecast area dropping into the lower 60s. High pressure will make for a dry Friday with below average temperatures, in the mid 80s, with light north winds and dew points in the mid-low 50s. High pressure is firmly in control of the region this weekend leading to superb weather conditions.
A cold front will be dropping down from the northwest at night.
A weak cold front is slowly pushing southward across central portions of GA. The cold front will continue to push slowly south of the CWA this evening and overnight. High pressure will build in from the north. The high center will shift east to across the Middle Atlantic by tomorrow. The atmosphere remains rather dry (PWATs of ~1", in the lowest 25% climatologically) in the wake of the frontal passage at the end of the week, so the increased forcing will have little effect on rain chances.
Deep mixing is expected and depending on how impacts from increasing clouds or smoke aloft high temps should at least reach the 80s, possibly even the upper 80s at warmer locations in ND depending on impacts from increases in mid to high cloud cover (and any smoke aloft). Due to the track and timing of the system, along with a deeper dry/mixed layer ahead of the cold front any high based showers or thunderstorms could be limited, with most consistent signal for isolated to scattered activity closer to Lake of the Woods, and latest HREF mean is actually showing this missing our CWA to the northeast. Northwest flow remains in place behind the departing mid level trough and subsidence/dry conditions are favored during the daytime period Saturday.
Dry and pleasant conditions expected today as high pressure builds across the Ohio Valley. Broad high pressure will continue through most of the weekend, with low level warm advection resulting in high pressure several degrees above the climatological norm.
223 AM MDT Fri Sep 10 2021 Current surface map places trof across the central Dakotas. Upper level ridge is located across the plains today, with low level thermal profiles peaking this afternoon. Dry cold front slips through the area tonight.
Current surface analysis places low over northern Saskatchewan, with trough dropping down into the northern plains. Upper level analysis places broad ridge over the western CONUS, with high near the four corners area. On Friday, upper ridge meanders easterly bringing another toasty day to the area. With the ridge moving east, some smoke moves into our area. Late tomorrow afternoon into tomorrow night a cold front will push through the area. An easterly moving Pacific trough breaks down the ridge on Saturday, while cooler air moves in behind the aforementioned cold front. As the trough moves east, chances for showers will be on the increase, mainly in the afternoon/evening hours.
High pressure will continue to build over the region from the west, leading to calm winds and clear skies through the night. High pressure will bring mostly VFR conditions to all TAF sites with the exception of dense fog near or around TRI early this morning. Diegan Chattanooga Airport, TN 82 59 85 63 88 / 0 0 0 0 0 Knoxville McGhee Tyson Airport, TN 80 58 84 62 87 / 0 0 0 0 0 Oak Ridge, TN 80 57 83 61 86 / 0 0 0 0 0 Tri Cities Airport, TN 78 53 82 58 86 / 0 0 0 0 0.
An upper trof over the eastern states moves well off to the northeast through the period allowing for an upper ridge to build into the region. In the wake of the cold front, lows tonight range from around 60 inland to the mid/upper 60s at the immediate coast, which are values we haven't seen since about late May. Lows Friday night will be a degree or two warmer and range from the lower 60s inland to the upper 60s at the coast.
Isolated thunderstorms are expected over the higher terrain of northern Arizona mainly in western Coconino and Yavapai counties again this afternoon. Isolated thunderstorms will be possible today over the high terrain of northwest Coconino County along the Coconino and Kaibab Plateaus. Warmer than average temperatures continue with breezy afternoon south to southwest winds.
217 AM MDT Fri Sep 10 2021 Large upper ridge remains over the central and southern Rockies today with hot and dry conditions. Record breaking high temperatures in the lower 100s are expected. Upper ridge moves little for Saturday with another day of triple digit heat. Cold front will be dropping south late Saturday afternoon and Saturday evening, while an upper trough tops the ridge and moves into Nebraska.
High pressure building over the region will result in sunny skies, clear nights and overall nice conditions for the next 48 hours. Enjoy! High today will be in the low to mid 80s, with a few areas in the far north barely reaching 80. If you have outdoor plans tonight, temperatures will fall into the low to mid 60s north and upper 60s to low 70s in the south by 10 PM, with clear skies. Saturday will see temperatures a few degrees warmer with generally mid to upper 80s areawide.
1143 PM CDT Thu Sep 9 2021 Canadian high pressure will drift east into IL this evening, and pass east of IL on Friday. Lows tonight will be in the low to mid 50s.
High pressure over the ARKLATEX today will be moving through the day Friday turning winds to the east.
Record heat will continue over the area through the weekend as an unusually strong area of high pressure dominates NM.
314 AM EDT Fri Sep 10 2021 Cooler and drier air will filter into the area over the weekend.
334 AM CDT Fri Sep 10 2021 Early this morning, an amplified upper level ridge was located across the central Rockies. A downstream upper level trough was located across the east central US.
244 AM CDT Fri Sep 10 2021 Mostly sunny skies with strong ridging is expected for much of the short term. Satellite imagery shows the main ridge building into the region. As such, could see temps a little cooler than currently forecast if the smoke remains thicker than expected.
/NEW/ /Through Tonight/ Benign weather will continue through the short term with an upper ridge leading to seasonably hot and dry weather.
High temperatures will range from the lower 70s to lower 80s. In addition, with many crops starting to dry down, it was the consensus that the dew points were a bit too high, so lowered them into the lower to mid-60s in the afternoon.
(Today and tonight) Strengthening westerlies across the northern and central Rockies today will help strengthen lee troughing and result in increasing south winds across much of Oklahoma and western north Texas. Combined with delayed moisture return (lower level ridge persisting across the gulf coast) and increasing temperatures (upper high shifts eastward closer to the region) fire weather will be the main concern. Flow around upper ridge will continue to bring elevated smoke across the region.
209 AM EDT Fri Sep 10 2021 A high pressure system will provide dry weather with a warming trend through the weekend and into the next work week. Still looking at isolated showers and thunderstorms firing up this afternoon and early evening due to influence of upper trough and daytime heating. Friday looks to be sunny, dry, and cool, under influence of high pressure and northwesterly flow aloft. A high pressure system will slowly slide eastward across the area over the weekend and into the next work week.
This wave will work over to James Bay by the end of the short term, which will help drive a cold front across our area tonight into Saturday morning. We look to be in the core of the thermal ridge overnight tonight, so we'll miss seeing the thermal ridge during peak heating, though 925mb temps in the 22C to 24C range will support highs into the mid 80s over western MN today, then along the I-90 corridor for Saturday.
Most locations saw lows in the low to mid 50s with the dry airmass radiating well overnight. Most locations are already in the low to mid 60s and this rapid warming will continue throughout the morning and afternoon with highs in the low to mid 80s. Lows will be a tad warmer, mainly in the upper 50s. Mean troughing extending southward along the eastern seaboard will gradually relax during the course of the weekend, as upper ridging over the Southwest slowly builds eastward.
654 AM EDT Fri Sep 10 2021 Following the cold front passage, high pressure and drier air are building into the area and will remain in place through the weekend. Dew points and temperatures quickly fell across the Upstate following the cold frontal passage overnight. The northern and western Midlands and Pee Dee will see morning lows in the upper 50s with the rest of the forecast area dropping into the lower 60s. High pressure will make for a dry Friday with below average temperatures, in the mid 80s, with light north winds and dew points in the mid-low 50s. High pressure is firmly in control of the region this weekend leading to superb weather conditions.
then as high pressure shifts east this afternoon. Even warmer conditions will be seen for Sat as SRLY flow increases. and an upper level ridge to the west expands further east closer to AR.
625 AM CDT Fri Sep 10 2021 (Today and tonight) Strengthening westerlies across the northern and central Rockies today will help strengthen lee troughing and result in increasing south winds across much of Oklahoma and western north Texas. Combined with delayed moisture return (lower level ridge persisting across the gulf coast) and increasing temperatures (upper high shifts eastward closer to the region) fire weather will be the main concern. Flow around upper ridge will continue to bring elevated smoke across the region.
638 AM EDT Fri Sep 10 2021 A high pressure system will provide dry weather with a warming trend through the weekend and into the next work week. A quiet day is then expected as high pressure takes control over the area. Dry air accompanying the high pressure will keep humidity levels low, and temperatures are expected to remain cooler than normal for this time of year. Daytime highs will be in the mid to upper 70s in the lowlands and upper 50s to low 70s in the mountains. Tonight, temperatures are expected to lower in the the 50s for the lowlands and mid to upper 40s in the mountains. A high pressure system will slowly slide eastward across the area over the weekend and into the next work week.
With northwest flow at 850mb and a lake-850mb delta T of 15 to 17 C, a few lake effect rain showers have developed and have drifted into Mercer County, with lift supported by vorticity advection in a departing mid-level trough. By afternoon, the 850mb thermal trough will pull east, which will allow the delta T to decrease and put an end to the showers. Elsewhere, dry weather is anticipated as high pressure remains in general control. Broad high pressure will continue through most of the weekend, with low level warm advection resulting in high pressure several degrees above the climatological norm.
310 AM MDT Fri Sep 10 2021 Warm, dry, and breezy conditions are expected today as the next upper trough approaches the region from the west. Chances for showers will increase tonight as the trough tracks east over the region, with perhaps an isolated thunderstorm on Saturday.
318 AM PDT Fri Sep 10 2021 Cooler weather today into the weekend. Cooler today as the low moves though the region and brings with it not only the rain and thunderstorms but cooler air. The activity will continue to push east with it ending by evening as the low moves northeast of the area. Winds will also be windy over the ridgetops today with sustained wind up to 25 mph and gusts generally 25 to 35 mph but locally up to 50 mph.
(Issued 332 AM CDT Fri Sep 10 2021) Today and Tonight: High pressure over the Great Lakes Region will gradually shift southeast out to the New England states today. As the high exits, the winds will shift to southerly. The southerly winds will bring some warmer air into southern Wisconsin.
545 AM CDT Fri Sep 10 2021 After a cool start this morning, we're headed back to summery heat today as mid level warm air advection and strong upper ridging build into the Central U. Given the favorable conditions and recent biases, will continue to trend temperatures warmer, toward the 75th percentile of NBM guidance. On Saturday, a weaker NE-SW oriented cold front tracks through the region, likely setting up south of the I-90 corridor by mid afternoon. With the low level jet pooling moisture ahead of the front, it will be a hot day south of I-90 with dew points in the 60s and temperatures peaking in the 90s. Further north behind the front, it'll be a bit cooler and drier with highs in the 80s and a northeast breeze.
Temperatures begin to trend cooler today for North-central Montana, as a cold front arrives from Canada. Overall cooler temperatures prevail through the weekend. A surface cold front arriving from Canada will bring cooler temperatures into North-central Montana today.
An area of low pressure and broad mid-level trough currently over Alberta will approach the region today. A warm front, along with ridging aloft, will push into the area ahead of the low pressure with high temperatures in this CWA reaching the mid 80s to the mid 90s. The low pressure system will slide southeastward across the region Friday night, bringing a noticeable shift in the wind direction to the northeast. While Saturday will be cooler, the 00Z model guidance has increased highs 3 to 5 degrees since yesterday's 00Z run.
438 AM MDT Fri Sep 10 2021 Current surface map places trof across the central Dakotas. Upper level ridge is located across the plains today, with low level thermal profiles peaking this afternoon. Dry cold front slips through the area tonight.
High pressure is building into the Mississippi River Valley on the surface map, keeping the forecast dry, and winds lighter today with the ridge axis positioned over the region. Tonight, another cool night anticipated with radiational cooling primed under clear skies with little to no wind under the ridge. Saturday: The pleasant and dry conditions we're currently enjoying will continue into Saturday as broad surface ridging continues to hold sway. Mornings will remain cooler while daytime conditions will still be seasonably warm.
Winds will become even lighter overnight tonight as the ridge axis remains over the region. High pressure is building into the Mississippi River Valley on the surface map, keeping the forecast dry, and winds lighter today with the ridge axis positioned over the region. Tonight, another cool night anticipated with radiational cooling primed under clear skies with little to no wind under the ridge. Saturday: The pleasant and dry conditions we're currently enjoying will continue into Saturday as broad surface ridging continues to hold sway. Mornings will remain cooler while daytime conditions will still be seasonably warm.
A weak, broad ridge will persist across the Florida Keys coastal waters through tonight, resulting in light to gentle breezes. Thereafter, a strong ridge of high pressure will build across the Atlantic, with the axis penetrating the southeastern United States by tomorrow night.
513 AM MDT Fri Sep 10 2021 Large upper ridge remains over the central and southern Rockies today with hot and dry conditions. Record breaking high temperatures in the lower 100s are expected. Upper ridge moves little for Saturday with another day of triple digit heat. Cold front will be dropping south late Saturday afternoon and Saturday evening, while an upper trough tops the ridge and moves into Nebraska.
Early this morning, an amplified upper level ridge was located across the central Rockies. A downstream upper level trough was located across the east central US.
736 AM EDT Fri Sep 10 2021 Cooler and drier air will filter into the area over the weekend.
725 AM CDT Fri Sep 10 2021 Mostly sunny skies with strong ridging is expected for much of the short term. Satellite imagery shows the main ridge building into the region. As such, could see temps a little cooler than currently forecast if the smoke remains thicker than expected.
High pressure was providing much of the area with calm winds and clear skies early this morning. Temperatures were in the low to mid 50s with dew points about the same. As the high moves off to the east today, winds will increase from the south to southeast and will bring some slightly more noticeable humidity levels into the region. This will keep temperatures much warmer than those we're seeing early this morning. This combination may lead to heat index values in the lower to mid 90s.
405 AM MDT Fri Sep 10 2021 Temperatures begin to trend cooler today for North-central Montana, as a cold front arrives from Canada. Overall cooler temperatures prevail through the weekend. A surface cold front arriving from Canada will bring cooler temperatures into North-central Montana today.
702 AM EDT Fri Sep 10 2021 Dry low level environment remains firmly entrenched this taf period within a ridge of high pressure. The higher 850 mb temperatures will lag to the west this afternoon, which will make for just a slight warm up compared to yesterday. High temperatures should come in around the low-mid 70s for most of southeast Michigan. 00 inch and a good amount of dry air in the lower levels resulting in limited cloud cover today. Elevated lower level flow of 25-30 knots at the base of a closed mid/upper low pressure system over James Bay will bring potential for gusts to 30 mph during the afternoon.
916 AM EDT Fri Sep 10 2021 Cooler and drier air will filter into the area over the weekend.
918 AM MDT Fri Sep 10 2021 Current surface map places trof across the central Dakotas. Upper level ridge is located across the plains today, with low level thermal profiles peaking this afternoon. Dry cold front slips through the area tonight.
258 PM EDT Fri Sep 10 2021 High pressure and dry conditions will continue across the CWA through the period.
High pressure aloft and at the surface will remain in control of our weather as we move into the weekend. The cooler drier air mass over the forecast area, will again result in a fall-like feel to the air tonight into Saturday morning, as lows fall into the upper 50s and lower 60s.
Strong mid level ridge centered over NM will expand east over the Plains as it reorients and elongates over the weekend. The low level thermal ridge will also do the same, with H85 values peaking on Saturday before it contracts back to the west. Our area will be sandwiched between lee troughing to our west and ridging to our south and east, resulting in gusty south to southwest winds the next few days.
1144 AM MDT Fri Sep 10 2021 Current surface map places trof across the central Dakotas. Upper level ridge is located across the plains today, with low level thermal profiles peaking this afternoon. Dry cold front slips through the area tonight.
Upper level troughing over the eastern U. gradually gives way to an upper level ridge sliding east across the south-central U. At the surface, high pressure remains firmly in control of our weather as it gradually shifts east to the southwestern Atlantic. Clear skies and dry air create an environment that can cool and warm quickly, and given how this mornings temperatures ended up a little cooler than forecast models, MOS guidance seems to be handling temperatures best so far. All of that to say the high today and tomorrow will generally be in the middle to upper 80's, and a pinch warmer tomorrow in the upper 80's to lower 90's.
215 PM CDT Fri Sep 10 2021 The upper ridge over the region will continue to allow smoke from western U. Breezy winds are expected ahead of the low out of the southeast. As the low shifts south into NE on Saturday, cooler air will move in from the north. By evening, the upper ridge will also be suppressed as an upper trough pushes east into North Dakota.
High pressure will continue to drift east through the night and skies should be clear with a sliver of the moon in the evening.
1100 AM MDT Fri Sep 10 2021 Large upper ridge remains over the central and southern Rockies today with hot and dry conditions. Record breaking high temperatures in the lower 100s are expected. Upper ridge moves little for Saturday with another day of triple digit heat. Cold front will be dropping south late Saturday afternoon and Saturday evening, while an upper trough tops the ridge and moves into Nebraska.
/Tonight through Saturday Night/ A dry start to the weekend is on the way to the Ark-La-Tex as upper-level ridging over the southern Rocky Mountains maintains pleasant, Fall-like conditions through the next 36 hours. Below average temperatures, calm winds, and dew points near or below the 60-degree mark will push lows into the lower 60s with upper 50s possible again tonight, especially in our eastern zones and outside of urban heat islands. By Saturday, the same ridge will also maintain the flow of Pacific Northwest wildfire smoke across the Great Plains, with some hazy skies possible in our northern and western zones. Saturday night conditions will be similar, with only a slight increase in dew points above the 60-degree mark in southern zones keeping lows in the low to mid- 60s.
1110 AM PDT Fri Sep 10 2021 A strong weather system will move in today bringing cooler temperatures, numerous rain showers over eastern Washington and North Idaho, along with a few possible thunderstorms. High resolution models are indicating a burst of gusty winds with the cold front passage of sustained 20 mph gusting to 30 mph. Winds will increase out ahead of the cold front across extreme eastern Washington between 20-00Z with gusts to 30-35 kts possible at PUW and 20-25 kts possible at GEG.