Aikyam-Lab/Synoptic-Bench huggingface dataset:
/19/ (Tuesday through Wednesday) Yesterday was hot, and today will be even hotter, as temperatures are expected to climb a few degrees under the ridge.
547 AM CDT Tue Aug 6 2024 - Tuesday high temperatures span across the 90s ahead of afternoon cold front. Maximum heat indices roughly 5 degrees warmer than the air temperature.
628 AM CDT Tue Aug 6 2024 (Today and tonight) Thermal ridge shifting southeast into the area this afternoon will bring much warmer conditions.
541 AM EDT Tue Aug 6 2024 - Hot and humid today - Isolated thunderstorms late today into this evening - Cooler and less humid Wednesday - Much cooler and low humidly this weekend. Later in the day, MSLP low and cold front will move south into central Indiana.
(Today and tonight) Upper level ridge peaks today which will bring temps to their warmest of the week.
- Much cooler and cloudy today as Canadian air enters the state.
Otherwise, the mid-level ridge to our north will continue to push southward and lead to a warming trend and largely rain-free conditions across South Texas. Highs today will range from the lower 90s along the coast, to 100-103 over the Rio Grande Plains. Lows tonight will continue to range from the mid 70s inland to the lower 80s along the coast.
- Continued dry pattern through the weekend along with much cooler temperatures and lower humidity. Upper level ridging centered over the southwest U. So despite the slightly warmer air temps of 94-98, think that most areas should stay just below Heat Advisory threshold. Temperatures will be much cooler across the region on Wednesday, aided even more so by a good amount of cloud cover. Think that the clouds should slowly erode through the afternoon, but temperatures will only peak in the low to mid 80s.
627 AM CDT Tue Aug 6 2024 - After seasonal temperatures today and a brief return of hot temperatures across the west Wednesday, a cooler and wetter weather pattern will arrive Wednesday night and persist through the weekend. - With the return to a cooler, wetter pattern, beneficial rainfall will be possible across most of the region. At 3am CDT, a cold front had pushed through Nebraska and into central Kansas. Highs today were adjusted slightly cooler than the previous forecast, now in the upper 70s northeast, mid 80s central areas, to the upper 80s to near 90 western Sandhills. A cold front will drop southward from south Dakota. Synoptically, A rather deep closed low will extend over southern Manitoba/Saskatchewan with an upper trough extending south across the Northern Plains.
* Dry and Warm Continues: High pressure across the West allows dry, southwest flow to prevail for the week ahead. Above average temperatures for early August (about 3-6 degrees above typical) will have highs in the upper 90s-near 100 for the lower valleys and mid-upper 80s for the Sierra communities. * Winds and Fire Concerns: The warmer temperatures will bring a return of our standard afternoon southwest-west breezes each afternoon.
628 AM CDT Tue Aug 6 2024 (Today through Wednesday Night) The heat will crank up a notch today and tomorrow thanks to a building mid/upper level ridge of high pressure. The aforementioned ridge will act to suppress convective development.
656 AM CDT Tue Aug 6 2024 (Tuesday through Wednesday) Yesterday was hot, and today will be even hotter, as temperatures are expected to climb a few degrees under the ridge.
630 AM CDT Tue Aug 6 2024 - Notably cooler today, with highs in the 70s under lingering stratus.
Meanwhile, our part of the world will mostly be influenced by ridging aloft and high pressure at the surface.
(Today and tonight) Thermal ridge shifting southeast into the area this afternoon will bring much warmer conditions.
The NBM is again very much on the high side of the guidance envelope being pulled higher by the NBM's bias-correction calculations.
Temperatures will still warm into the middle 90s for most valley areas, and possibly the upper 90s in northwest AL (cooler by a few degrees atop the higher elevations). Scattered cumulus will develop as we move forward through the day, but not anticipating any shower development at this point with surface and 8h ridging starting to nudge eastward into the region.
705 AM CDT Tue Aug 6 2024 (Today through Wednesday) The mid to upper level subtropical ridge axis is currently anchored from the southern Great Basin to the Red River basin. South of this ridge a general mid level easterly flow and a couple weak upper level disturbances are moving west across South TX. By Wednesday, model consensus shows the H5 ridge axis closer to Central TX and the low to mid level thermal ridge being much more influential over Central TX.
Hot and dry conditions continue today as ridging builds aloft, reinforced by Tropical Storm Debby to the east. A mid/upper level high wedged into the region from the west, coupled with high pressure at the surface, will remain in control of the weather across the forecast area today into tonight. Despite dew points mixing into the lower 70s & upper 60s this afternoon though, temperatures themselves will continue to climb a degree or two higher than previous days, as they range from the upper 90s to around 100 this afternoon under sunny skies.
518 AM CDT Tue Aug 6 2024 (Today) Today will be another hot day, likely a few degrees warmer than yesterday, with most areas near to slightly above 100 F.
404 AM CDT Tue Aug 6 2024 - After seasonal temperatures today and a brief return of hot temperatures across the west Wednesday, a cooler and wetter weather pattern will arrive Wednesday night and persist through the weekend. - With the return to a cooler, wetter pattern, beneficial rainfall will be possible across most of the region. At 3am CDT, a cold front had pushed through Nebraska and into central Kansas. Highs today were adjusted slightly cooler than the previous forecast, now in the upper 70s northeast, mid 80s central areas, to the upper 80s to near 90 western Sandhills. A cold front will drop southward from south Dakota. Synoptically, A rather deep closed low will extend over southern Manitoba/Saskatchewan with an upper trough extending south across the Northern Plains.
A 598 decameter ridge centered over the southern plains will dominate across a good portion of the southern CONUS throughout the rest of the week. Highs should be close to the century mark across western Alabama as the 500mb ridge remains firmly in control over the region.
353 AM PDT Tue Aug 6 2024 An upper level trough makes its way over the PacNW, bringing southwest flow and moisture. Models are in good agreement with the occurrence of the trough and storm activity for today.
618 AM CDT Tue Aug 6 2024 (Today through Wednesday) High pressure remains anchored across the western Gulf of Mexico as Debby continues to slowly work along the Southeastern US coast. The mid level ridge continues across the Desert SW and Four Corners, weakening slightly across the lower Texas coast into mid-week. Long period swell from Debby has reached the lower Texas coastal waters and may build by this afternoon or evening, increasing the threat of life-threatening rip currents into tonight.
Cooler, near normal temperatures are then anticipated late week into the weekend. Today and tomorrow mark the hottest and driest days of the week, with temperatures in the Valley expected to be in the 100 to 105 degree range, and relative humidities down in the low teens and into the single digits in some areas (primarily the northern Sacramento Valley). As a trough builds into the area late this week and pushes out the current ridging, onshore flow will increase, bringing improved daytime humidities (in the 20s to low 30s), along with breezy afternoon and evening winds with gusts between 15 to 20 mph, and up to 25 mph in the vicinity of the Delta.
With the exception of a few coastal and bayside locations, temperatures are generally running warmer than 24 hours ago as the marine layer compressed overnight and was not able to protrude as far inland. (Today and tonight) Upper level ridge peaks today which will bring temps to their warmest of the week.
Isolated stronger storms are possible along a cold front during the afternoon in far eastern SD.
349 PM CDT Tue Aug 6 2024 - Diminishing rain may reach towards the James River this afternoon, however generally expecting quiet weather into the overnight with cooler than normal temperatures.
Active weather will persist today with above- average atmospheric moisture, instability, shear, and synoptic ascent due to an approaching Pacific trough. The strongest storms are expected between 3:00-8:00 PM MDT, especially eastward from the Highway 93 corridor. A drier air mass associated with the trough is currently moving eastward through Oregon and is expected to reach north-central Idaho tonight. This cooler and drier air will reduce the threat of thunderstorms in Idaho.
234 PM CDT Tue Aug 6 2024 - Continued dry pattern through the weekend along with much cooler temperatures and lower humidity. A cold front will continue to push through the area this evening before shifting to the southeast overnight.
It is summer, and the Four Corners ridge has made its presence known to one and all. It will promote a thickness ridge eastward across the southern High Plains tonight through Wednesday night.
An upper level ridge will continue to dominate the weather across West Central Texas, resulting in dry conditions and above normal temperatures.
(Through Wednesday) Upper level ridging and subsidence from the proximity of Debby's remnants to the forecast area tomorrow will continue to lead to predominantly clear conditions across the forecast area. High temperatures across SW Georgia and portions of the Florida Big Bend will predominantly struggle to reach the low to mid 90s as some cloud cover may still be present from Debby.
850mb maps show a frontal passage occuring overnight Tuesday into the morning Wednesday, leading to "cooler" temperatures Wednesday afternoon. Highs will still be in the low 90s, but will be several degrees cooler than previous days due to the cold front.
A weak cold front will attempt to push southward tonight but will stall across northern or central Oklahoma before washing out completely by the afternoon.
Moisture pooling along the boundary will lead to an increase in dew points as it passes, which should be offset somewhat by slightly cooler temperatures on its north side.
/29 (Now through Wednesday) Dry and hot conditions are expected over the area through Wednesday due to deep layer subsidence associated with the western side of Debby and an upper ridge nosing into the region.
The persistent upper-level ridge shows no signs of breaking down or retreating throughout this short-term period, or the remainder of this week for that matter.
A few thunderstorms through the evening hours could become severe and produce damaging winds and large hail, with the highest chance of seeing these storms existing over Central and North Central Montana. A cold front Wednesday will bring another round of scattered showers and storms during the afternoon, but not to the intensity of Tuesday's storms.
Today: The storms in our north have exited the forecast area and then a cold front will push southeast across the area this morning. North winds in the wake of the front and cold air advection will bring much cooler and less humid conditions. Highs will be in the 70s! Tonight: Clearing skies from north to south as a ridge of high pressure stretches from Iowa to Quebec. Synoptically speaking we will have a northwest flow as a deep trough takes shape in the Great Lakes region, and the remnants of "Debby" slowly moves up the East Coast. MVFR ceilings will continue into the late afternoon or early evening at which time they will scatter out as high pressure builds into the area.
1200 PM CDT Tue Aug 6 2024 (Today through Wednesday) The mid to upper level subtropical ridge axis is currently anchored from the southern Great Basin to the Red River basin. South of this ridge a general mid level easterly flow and a couple weak upper level disturbances are moving west across South TX. By Wednesday, model consensus shows the H5 ridge axis closer to Central TX and the low to mid level thermal ridge being much more influential over Central TX.
(Now through Wednesday) Dry and hot conditions are expected over the area through Wednesday due to deep layer subsidence associated with the western side of Debby and an upper ridge nosing into the region.
The expanding ridge from the four corners region is also to blame as its suppression is not helping our rain chances. Unfortunately, the lack of rain and the compression from the ridge will keep us with near-record heat over the next couple of days. The ridge will still be in place here and the dry air aloft will not let up over 700mb, not to mention PW will be below the 10th percentile for tomorrow.
Slightly cooler temperatures return Wednesday. * Very pleasant weekend with cooler temperatures and lower humidity. Hot and humid conditions continue through the afternoon with high temps peaking in the low and mid 90s and max heat indices topping out in the 96 to 101 degree range. The main focus for the short term has been on the cold frontal boundary sinking into our northern CWA later tonight. After some patchy morning fog possible, the cold front slowly slides through on Wednesday, with a few showers and storm possibly developing over east central KY on Wednesday. Overall cooler tomorrow with the front passing. Highs mostly in the low to mid 80s.
(Tonight) A narrow ridge of high pressure will weaken as it shifts into the TN valley tonight.
/NEW/ /Through Wednesday/ Hot and dry weather will prevail through mid-week as an upper level ridge continues to strengthen overhead.
(This evening through Wednesday) A strong upper ridge centered over the Four Corners region will allow for hot and dry weather to continue.
(This evening through Wednesday night) A strong upper-level ridge is stationed overhead which will lead to widespread highs in the upper-90s to mid-100s. Some thunderstorms may develop tomorrow afternoon in the higher terrain of northern New Mexico/southern Colorado and track into the northwestern combined Panhandles. Latest NBM came in up to a few degrees cooler than previous runs. Will opt to issue a Heat Advisory for Palo Duro Canyon as that has the highest confidence of reaching at least 105 degrees, but will hold off on issuing elsewhere for now given uncertainty in where the clouds may linger, and which counties could hit 105 degrees.
(Tonight through Wednesday night) The center of the upper level ridge remains centered to our northwest with a slight weakness to our south. Seeing a decent coverage of afternoon fair weather cumulus clouds with temperatures in the lower to middle 90s for most of the area. The upper ridge is expected to build more into South-Central Texas tomorrow and with that should see a slight increase in temperatures. Another quiet night is expected tomorrow night with lows in the middle 70s to near 80 degrees with the highest temperatures near the Rio Grande.
As such, overnight lows will also be several degrees cooler tonight than previous nights. The frontal passage will remain dry however as mid to upper level ridging remains planted over the Southern Plains. Bowlan (Wednesday through Tuesday) Relatively cooler temps are on tap for tomorrow, especially for portions of northwest Arkansas where some areas could stay in the upper 80s through the afternoon.
1240 PM CDT Tue Aug 6 2024 (Today through Wednesday afternoon) The inverted trough that has helped to produce some showers and storms over the last few days will be pushed out of the area by the upper ridge to the west today. The higher elevations stay "cool" in the low 90s. Lows tonight settle in the 70s with 60s in the higher terrain. The heat turns up on Wednesday as the western ridge amplifies and moves eastward. Highs reach into the low to mid 100s for many with mid 90s in the mountains.
1222 PM CDT Tue Aug 6 2024 - Notably cooler today, with highs in the 70s under lingering stratus.
130 PM CDT Tue Aug 6 2024 Hot and dry pattern should continue for the remainder of the week under the influence of upper ridging, reinforced by Tropical Storm Debby to the east. Wednesday is likely to be the hottest day of the year so far, with temperatures peaking in the low 100s. Uncertainty exists in the extent of heat risk given dry conditions favoring deep mixing, resulting in dewpoints in the low 70s and even upper 60s.
1246 PM CDT Tue Aug 6 2024 - After seasonal temperatures today and a brief return of hot temperatures across the west Wednesday, a cooler and wetter weather pattern will arrive Wednesday night and persist through the weekend. - With the return to a cooler, wetter pattern, beneficial rainfall will be possible across most of the region. Highs today were adjusted slightly cooler than the previous forecast, now in the upper 70s northeast, mid 80s central areas, to the upper 80s to near 90 western Sandhills. A cold front will drop southward from south Dakota. Synoptically, A rather deep closed low will extend over southern Manitoba/Saskatchewan with an upper trough extending south across the Northern Plains.
1224 PM CDT Tue Aug 6 2024 (Today through Wednesday Night) The heat will crank up a notch today and tomorrow thanks to a building mid/upper level ridge of high pressure. The aforementioned ridge will act to suppress convective development.
Observations throughout the morning have seen increased dewpoints in the mid-50s along the I-25 corridor and into the low-60s in eastern Wyoming/Nebraska Panhandle.
As of 200pm this afternoon, a cold front stretches from near Bloomington to Rushville while a prefrontal trough is in place from Champaign to Shelbyville. An expansive area of low stratus is in place along and behind the prefrontal trough. The cold front will settle south of the Ohio Valley tomorrow while weak area of high pressure builds over the Great Lakes.
348 PM EDT Tue Aug 6 2024 - Scattered showers and thunderstorms south of I-94 come to an end this evening as low pressure departs across the Ohio Valley.
Other areas will see slightly cooler weather by the middle of the week as onshore flow increases and the marine layer becomes a bit deeper.
Tonight, any rain chances will quickly diminish and typical summer lows from the mid 70s inland to the lower 80s along the coast are expected. The mid-level ridge to our north will sag further southward into South Texas tonight through Wednesday night and lead to a warming trend through the rest of the week.
340 PM EDT Tue Aug 6 2024 High pressure builds in from the northwest tonight and Wednesday.
1225 PM CDT Tue Aug 6 2024 (Today through Wednesday) Oppressive heat is the headline for the next several days as the SW CONUS stacked high ridges into the area. The center of this high is over northern New Mexico into the panhandles of TX and OK. Debby is now getting left by the old upper trough so we will fully expect some aimless drifting and meandering for now.
High pressure is building in from the northern plains today. This high pressure system will keep conditions dry and cause winds to weaken heading into Wednesday.
1224 PM CDT Tue Aug 6 2024 Hot and dry conditions continue today as ridging builds aloft, reinforced by Tropical Storm Debby to the east. A mid/upper level high wedged into the region from the west, coupled with high pressure at the surface, will remain in control of the weather across the forecast area today into tonight. Despite dew points mixing into the lower 70s & upper 60s this afternoon though, temperatures themselves will continue to climb a degree or two higher than previous days, as they range from the upper 90s to around 100 this afternoon under sunny skies.
152 PM MDT Tue Aug 6 2024 Main forecast concerns are on the potential for severe thunderstorms this afternoon into this evening, then focus turns to cooler temperatures and shower chances, along with a few thunderstorms, on Wednesday. Convective allowing models (CAMS) are in good agreement this afternoon indicating convection will get going over the higher terrain/western areas of the forecast area in the 2 to 4 PM timeframe then push eastward through the late afternoon and evening hours. On Wednesday the main trough pushes in from the northwest bringing much cooler air to the region.
1212 PM CDT Tue Aug 6 2024 (Today and tonight) Thermal ridge shifting southeast into the area this afternoon will bring much warmer conditions.
216 PM CDT Tue Aug 6 2024 - Diminishing rain may reach towards the James River this afternoon, however generally expecting quiet weather into the overnight with cooler than normal temperatures.
1228 PM CDT Tue Aug 6 2024 (Today and tonight) The persistent upper high will continue its eastward progression and will dominate the pattern today. Though highs across the Rolling Plains will be 100 degrees or warmer, they should stay just below advisory criteria (105). Light westerly morning winds will back to the south thanks to surface lee troughing.
300 PM EDT Tue Aug 6 2024 - Hot and humid today - Isolated thunderstorms late today into this evening - Cooler and less humid Wednesday - Much cooler and low humidly this weekend. Behind the front, cooler and drier conditions will settle across the region. The synoptic- scale pattern shift will lead to cooler temperatures as a Canadian continental air mass pushes in from the NW. In return, the ridge over the Great Plains will wain, allow a more efficient advection of cold air into the Ohio Valley.
1145 AM CDT Tue Aug 6 2024 - Tuesday high temperatures span across the 90s ahead of afternoon cold front. Maximum heat indices roughly 5 degrees warmer than the air temperature.
A dry cold front will impact the Mid-South on Wednesday, providing some much needed relief from the heat and humidity through the end of the work week.
1049 AM PDT Tue Aug 6 2024 Updated aviation discussion An upper level trough makes its way over the PacNW, bringing southwest flow and moisture. Models are in good agreement with the occurrence of the trough and storm activity for today.
Latest guidance indicates below-normal temperatures for tonight's lows across the forecast area as broader synoptic-scale troughing centered in Canada continues to dig its way south into the north central CONUS. A cooler, dryer continental airmass associated with the robust mid to upper-level low and the cold front accompanying it will be responsible for the forecast area's seasonal temperature trend. As the cold front continues to move east with the broader low pressure, higher pressure builds in behind, thus yielding benevolent late-summer weather for the region. Tomorrow's highs will be in the lower to mid 80s, with surface prevailing winds shifting to the east as the front traverses the Ohio River Valley.
528 PM CDT Tue Aug 6 2024 - Continued dry pattern through the weekend along with much cooler temperatures and lower humidity. A cold front will continue to push through the area this evening before shifting to the southeast overnight.
908 PM CDT Tue Aug 6 2024 Upper level trough is pushing into the Northeast and that is pushing a cold front towards Middle TN. The cloud cover will keep overnight lows a few degrees warmer than what we saw last night. 850mb maps show a frontal passage occuring overnight Tuesday into the morning Wednesday, leading to "cooler" temperatures Wednesday afternoon. Highs will still be in the low 90s, but will be several degrees cooler than previous days due to the cold front.
(The rest of tonight) A weak cold front currently across northwest Arkansas into northeast Oklahoma will continue to sag south into southeast Oklahoma tonight. Overnight lows are forecast to several degrees cooler than last night across a good portion of the area. (Wednesday through Tuesday) Relatively cooler temps are on tap for tomorrow, especially for portions of northwest Arkansas where some areas could stay in the upper 80s through the afternoon.
610 PM CDT Tue Aug 6 2024 (Tonight through Wednesday night) Virtually no change to the current forecast, as sprawling and seasonably strong 500 mb ridge extends from the U.