Aikyam-Lab/Synoptic-Bench huggingface dataset:
1002 PM MDT Tue Aug 30 2022 Water vapor imagery shows strong ridging across the western CONUS, and west/northwest flow over the northern Great Plains. Upper ridge will remain nearly stationary through the rest of the week, with continued dry weather and above average temperatures. Temps will be slightly warmer than today, reaching up to the mid 90s in some spots.
1006 PM CDT Tue Aug 30 2022 (Issued 1000 PM CDT Tue Aug 30 2022) Quiet conditions expected tonight as high pressure builds to the south keeping the region clear and dry. During the day tomorrow a front will slide south but will likely stall/weaken as high pressure builds. Kuroski (Issued 325 PM CDT Tue Aug 30 2022) Tonight through Wednesday night: Gusty winds will ease tonight as the boundary layer decouples and high pressure expands a bit into our area. Mostly clear, dry conditions will continue into tomorrow, with highs reaching into the low 80s. Winds will become a bit gusty again during the afternoon owing to daytime mixing and a tighter pressure gradient ahead of a weak cold front that will sink southward and stall over northeast WI during the late afternoon.
1249 AM CDT Wed Aug 31 2022 Quiet day today with ridging aloft over the western CONUS and high pressure spinning over the southwestern CONUS, leaving us in northwest flow aloft. High pressure at the surface today helping to keep winds fairly light. The high pressure and a warmer airmass coupled with clear skies is lending itself to highs in the 80s and lower 90s. Tomorrow mainly high pressure again at the surface with highs slightly warmer in the 90s.
A cold front moving through tonight will bring in cooler and drier air starting Wednesday. Rain is mostly done; storms earlier were with pre-frontal trough and negatively-tilted upper wave. However, the actual surface cold front is finally reaching Steuben County-Western Finger Lakes with a few additional spotty showers. Much cooler weather is expected Wednesday and Wednesday night, with significantly lower dewpoints. However, primary upper trough will dip into the area along with an approaching secondary front. The persistent trough over the northeast will pull out of the region on Thursday, as broad high pressure at the surface builds in from the west.
This dome of high pressure has kept skies clear overnight and with clear skies and remnant moisture from this morning's cold front, patchy dense river valley fog has developed. The high pressure will also keep temperatures slightly cooler and also keep humidity relatively low through the day today. They all depict East Coast ridging building downstream of a stronger one developing over California/Nevada.
338 AM EDT Wed Aug 31 2022 A cold front will stall near the coast today, pushing offshore tonight. High pressure then builds in from the north and west through late week or potentially all the way through the weekend. A weak cold front will be along or off the coast by sunrise, with west to nw downsloping flow in its wake bringing an much drier airmass. Cold front moves offshore tonight as high pressure builds in stronger from the west, with continued drying of the profile. With dew points still around 60, have dropped lows below guidance consensus inland, into the lower 60s, trending toward 70ish closer to the coast. Mainly dry and seasonably warm conditions through late week and into the weekend as high pressure will dominate.
1251 AM CDT Wed Aug 31 2022 No updates need, high pressure over the region persists. High pressure remains locked over the region. This should be more likely at the usual cool spots from Hettinger through Glen Ullin, but the more widespread possibility is there with many current observations showing dew points in the low 40s. This update nudged forecast lows down blending the lowest of available guidance with the NBM. We did skew overnight lows slightly on the cooler side of guidance due to radiational cooling expected from clear skies and calm winds. Thursday is expected to be the hottest day of the extended as the low level thermal ridge extends further east, with 850mb temperatures in the 27 to 29 C range translating to forecast highs in the lower 90s east to upper 90s west.
103 AM EDT Wed Aug 31 2022 In the wake of a cold front, high pressure over the Midwest will bring a drier, cooler northwest flow to the Ohio Valley. The high pressure system will move through the Tennessee Valley Wednesday night and become very broad across this area and the Ohio Valley on Thursday. The next chance of appreciable rainfall will occur this weekend as a weak cold front passes south through the region. High pressure dropping south into the Tennessee Valley will keep a cool and dry west flow over the Ohio Valley Wednesday and overnight.
135 AM CDT Wed Aug 31 2022 Mild, dry and sunny weather will continue across the area under the influence of high pressure today and again Thursday. Temperatures today will be a few degrees warmer than those observed yesterday, with readings generally expected to be in the low to mid 80s with a continued westerly wind. Otherwise, after a quiet and cool night tonight, inland temperatures on Thursday will be a touch warmer, with mid 80s likely for most areas. Closer to the lake, however, slightly cooler conditions are likely due to the expectation for an afternoon lake breeze. KJB Temperatures will gradually moderate under sprawling high pressure encompassing much of the eastern CONUS as we head into September.
Thursday should be much of the same, with afternoon highs trying to creep into the low 90s in a few spots.
210 AM EDT Wed Aug 31 2022 In the wake of a cold front, cooler and drier conditions are expected, with somewhat gusty winds out of the west to northwest today through Thursday. Rain is mostly done; storms earlier were with pre-frontal trough and negatively-tilted upper wave. However, the actual surface cold front is finally reaching Steuben County-Western Finger Lakes with a few additional spotty showers. Much cooler weather is expected Wednesday and Wednesday night, with significantly lower dewpoints. However, primary upper trough will dip into the area along with an approaching secondary front. The persistent trough over the northeast will pull out of the region on Thursday, as broad high pressure at the surface builds in from the west.
and Thursday A weakening cold front will sag south through the area today; however due to lack of moisture precipitation is not expected as the front tracks through the area. Since the front will move through north-central Wisconsin earlier in the day, highs will be several degrees cooler than central and east-0central Wisconsin. High pressure will become established across the Ohio River Valley tonight into Thursday, as winds turn southwesterly on Thursday acrpss the western Great Lakes region. This will bring warmer temperaturs into the region as 850 mb temperatures recover into the middle teens. Lows tonight are expected to be in the 50s with highs on Thursday expected to rise into the lower to middle 80s away from the lakeshore.
Quiet conditions are expected overnight, although elevated cigs over much of TX to the E of a closed low over extreme SE NM/Far W TX will linger and continued spreading ESE into much of E TX into portions of far Srn AR/N LA through the overnight hours.
(Today) AT 05Z, a cold front was dropping south slowly into north AL.
Strong high pressure over the Great Basin will bring mainly fair weather with very warm to hot temps for the rest of the work week and likely through the holiday weekend.
1221 AM CDT Wed Aug 31 2022 Little changes to the forecast as a cold front has cleared the area. Given the low winds and clear conditions, could see some patchy fog develop overnight, especially in areas that received rainfall earlier today. Somewhat cooler conditions expected tomorrow with plenty of sunshine. (This afternoon through Thursday Night) Cold front making some progress southeastward this afternoon and it now located just southeast of Paducah. Dewpoints drop off into the 60s to the nw of the boundary will values are in the lower 70s to the se and across the mid state.
A cold front, currently over north Mississippi is almost out of our area leaving behind pleasant dewpoints to our north. Temperatures will be in the in 90s but dewpoint temperatures will be in the low 60s. Lows tonight will be in the lower 60s. Dewpoint temperatures will yet again be in the low 60s for most of the day.
Another dry and very warm day can be expected across northern Arizona tomorrow, especially in the lower elevations.
A southwesterly wind ahead of this trough is just enough to cause slightly stronger wind gusts and warmer temperatures in the lee of Prairie Coteau this morning. As the trough slides southward today winds will be light, but will then switch to the northeast on the backside of the trough. Although if the higher dewpoint models pan out, temperatures may not get as warm as forecast today. Return flow winds are expected Thursday as low pressure approaches from the west.
1150 PM CDT Tue Aug 30 2022 A cold front has settled to our south while high pressure is building into portions of the middle Mississippi Valley today and tomorrow. A modest northwest breeze will provide some relief from the heat and humidity with highs only in the lower to mid 80s again tomorrow.
The cold front remains in the TN Valley and will be slow to slide through today. The cold front stalls out around the I-85 corridor by tonight, so rain chances will still be around for the southeast on Thursday, but limited in overall coverage. With less sky cover today and tomorrow, temperatures will be able to reach the low to even a few middle 90s.
326 AM CDT Wed Aug 31 2022 Mild, dry and sunny weather will continue across the area under the influence of high pressure today and again Thursday. Temperatures today will be a few degrees warmer than those observed yesterday, with readings generally expected to be in the low to mid 80s with a continued westerly wind. Otherwise, after a quiet and cool night tonight, inland temperatures on Thursday will be a touch warmer, with mid 80s likely for most areas. Closer to the lake, however, slightly cooler conditions are likely due to the expectation for an afternoon lake breeze.
At the same time, the upper level ridge continues over the Northern US, this will allow the thermal ridge at 850mb to be over Montana and western North Dakota. All of these ingredients come together to produce high temperatures in the upper 80s in the southeast, and the low 90s in the west, closer to the thermal ridge.
Today Through Thursday Night An upper high pressure system continues over the western U. with a trough over the northeast. The ridge will expand to the southeast across the southern U. Lows tonight will be in the lower 60s to the lower 70s and mid to upper 60s Thursday night.
407 AM EDT Wed Aug 31 2022 A cold front will approach the area today.
953 PM MDT Tue Aug 30 2022 Western and central Wyoming continues to be influenced by upper- level high pressure over the western United States. Some cumulus are building over the higher terrain and Uinta County this afternoon, but it will be limited due to the dry layer RH. The pattern continues into Wednesday with the ridge axis extending from central Utah into western Montana. A couple of models are suggesting a low chance of showers over the eastern Bighorns Wednesday morning due to a very weak wave rounding the ridge and some moisture from the northern Plains.
Trending warmer and more humid over the weekend with a shower or thunderstorm in spots. Cooler temps aloft associated with mid level trough pivoting through southern ONT/QUE will generate times of clouds and sun over the northern tier today.
500 AM EDT Wed Aug 31 2022 Mostly dry conditions will persist into the weekend under high pressure.
/issued 840 PM CDT Tue Aug 30 2022/ A cold front is on the northern doorstep to the Mid-South at this time and will move through the CWA during the overnight hours. A mid level trough is pushing through the OH Valley this afternoon.
(Today through Thursday night) High pressure will continue to dominate the Salt Lake area with a low south of the AZ/NM area. The position of the low will allow for continued moisture transport from the Gulf to the southern Panhandles.
456 AM EDT Wed Aug 31 2022 Mostly dry conditions will persist into the weekend under high pressure.
H5 ridging remains to our west, keeping the upper flow mainly northwesterly through the day. As the ridge pushes east, we will see a reflection in the high temperatures, especially on Thursday. Heading into Thursday, the ridge continues building eastward, becoming less amplified through the day. Highs are expected to climb into the upper 80s to lower 90s across much of the area, with sunny skies and winds becoming southerly ahead of an approaching cold front. Thursday night: The main trough center is still shown to remain further north with an axis of positive vorticity aloft collocated with the frontal passage acting as the focus for any shower or thunderstorm development.
156 AM EDT Wed Aug 31 2022 A cold front will move through on Wednesday.
Quiet weather is expected today and tonight with nearby weak high pressure. A high amplitude strong upper level blocking ridge over the western CONUS will remain place through most, if not all, of the period.
224 AM EDT Wed Aug 31 2022 Mostly dry conditions will persist into the weekend under high pressure.
Temperatures are a bit warmer than previously forecast this evening, so they were raised slightly during the first half of the night. SR Chattanooga Airport, TN 89 66 90 69 91 / 0 0 0 0 30 Knoxville McGhee Tyson Airport, TN 87 62 89 66 91 / 0 0 0 0 20 Oak Ridge, TN 87 62 87 65 90 / 0 0 0 0 20 Tri Cities Airport, TN 83 57 86 62 89 / 0 0 0 0 10.
1157 PM CDT Tue Aug 30 2022 (This afternoon through Wednesday night) The swirl of the upper level low centered over the Permian Basin is evident on both radar and satellite this afternoon. Abundant moisture and the spin of the upper low are good ingredients for cold air funnels which at least one has been observed near Midland/Odessa. A cold front moved through the area last night bringing northeasterly winds and much cooler temperatures. The low will still be close enough to the CWA to cause more showers and storms to develop tomorrow. The low will drift off to the west so the best rain chances will be west of the Pecos River, particularly the Davis Mountains and Big Bend, though the entire area will have one more day of decent rain chances.
110 AM MDT Wed Aug 31 2022 Upper ridging out west will keep dry weather and clear skies over the area tonight. upper high on Wednesday sending a cold front through the area in the afternoon. Thunderstorms will develop along this front in the early afternoon for northeast areas and translate southward across the remainder of the plains through the evening as outflow boundaries reinforce the cold front.
1111 PM CDT Tue Aug 30 2022 (Tonight) Analysis this evening shows a cold front moving into NW portions of the area, although the drier, continental air mass is lingering a bit behind. (Wednesday through Thursday night) Model consensus suggests that northerly flow aloft will gradually subside and back to the northwest on Wednesday/Wednesday night, as a northern stream trough shifts slowly eastward across southeastern Canada and a mid-level ridge builds into the central Gulf coast states. Steering flow will become light/variable for a brief period on Thursday, before light southwesterly flow aloft returns on Thursday night, induced by the development of a subtle mid-level trough across the central Plains.
201 AM MDT Wed Aug 31 2022 Current upper air analysis and WV imagery shows a strong ridge in place over the western US and northwest flow over the northern plains. The dry and warm pattern continues as the ridge stays in place over the west.
For the rest of the day, a beautiful day is in store with sunny skies, lower humidity, and near normal temperatures behind a cold frontal passage.
(Today and tonight) A weak upper level low is located across far West Texas early this morning, with another weak low across Central Texas. In addition, a weak cold front is located just north of the Big Country. Expect highs generally in the low to mid 80s across the region.
All indications that the monsoonal moisture has finally left with this past weekend's trough passage, ushering in a much drier air mass underneath a building and expansive ridge of high pressure across much of the western states. Enough moisture remains with daytime heating to pop cumulus clouds over the ridges. This continues through the weekend, with even stronger heights if you can believe it, as the H5 center strengthens to about 597dam or above! This is maxed out in terms of percentiles, so it is a significantly strong ridge for early September.
Temperatures will be about 5-8 degrees warmer today compared to yesterday as we see some WAA return. Wind gusts look to top out around 20-25kt, but if mixing gets deeper as a weak cold front slides in from the north this afternoon, it is not out of the question that we could see wind gusts get closer to 30kt for an hour or two.
High pressure was centered west of the Mississippi River but extended into the area. With the plentiful sunshine, highs will reach the lower to perhaps middle 80s. As the high moves overhead tonight, winds will be light. The high will shift east of the area on Thursday, allowing some warmer air to return.
This feature will drift into northern Mexico later this morning as weak 500mb ridging builds overhead today.
Not much is on the docket for the forecast today; nothing in the way of rain is in the forecast thanks to the cold front that pushed through the area overnight last night. Like yesterday, NW AL will perhaps reach a few degrees into the lower 90s.
446 AM PDT Wed Aug 31 2022 A strong ridge of high pressure will deliver very hot conditions through the end of the work week.
628 AM CDT Wed Aug 31 2022 High pressure is currently dominating our sensible weather as it continues to move southeast through the region. Again, river valley fog is likely as the discrepancy between cool air temperatures and warmer water temperatures increases overnight.
1023 AM EDT Wed Aug 31 2022 A cold front will approach the area today.
556 AM CDT Wed Aug 31 2022 (Today) AT 05Z, a cold front was dropping south slowly into north AL.
443 AM CDT Wed Aug 31 2022 High pressure is currently dominating our sensible weather as it continues to move southeast through the region. Again, river valley fog is likely as the discrepancy between cool air temperatures and warmer water temperatures increases overnight.
Ample sunshine expected, so temperatures will be climb into the lower 90s this afternoon. From synopsis, high pressure over the central North Atlantic will result in light to gentle, with occasionally moderate, southeasterly breezes across the Florida Keys coastal waters through Thursday. The end of the week breezes will freshen as high pressure moves off the East Coast.
602 AM CDT Wed Aug 31 2022 (Today and tonight) A weak upper level low is located across far West Texas early this morning, with another weak low across Central Texas. In addition, a weak cold front is located just north of the Big Country. Expect highs generally in the low to mid 80s across the region.
Nudged afternoon temperatures up a degree or two; forecast highs now range from 80 over the ridges north of I-64 up to 85 in the Middlesboro Basin. This dome of high pressure has kept skies clear overnight and with clear skies and remnant moisture from this morning's cold front, patchy dense river valley fog has developed. The high pressure will also keep temperatures slightly cooler and also keep humidity relatively low through the day today. They all depict East Coast ridging building downstream of a stronger one developing over California/Nevada.
533 AM MDT Wed Aug 31 2022 The H5 ridge remains centered roughly over western UT this morning, keeping the air dry and winds light. Unfortunately, the trough will have little impact on our temperatures, which will nudge up yet another 3 to 5 degrees, with highs in the low 90s south and west, and upper 90s to around 100 for central basins. The extra heat may be able to bubble up a few showers along the spine of the Bighorn Range during the afternoon, but they will still be isolated, held back by subsidence from the ridge still in the vicinity.
623 AM CDT Wed Aug 31 2022 Mild, dry and sunny weather will continue across the area under the influence of high pressure today and again Thursday. Temperatures today will be a few degrees warmer than those observed yesterday, with readings generally expected to be in the low to mid 80s with a continued westerly wind. Otherwise, after a quiet and cool night tonight, inland temperatures on Thursday will be a touch warmer, with mid 80s likely for most areas. Closer to the lake, however, slightly cooler conditions are likely due to the expectation for an afternoon lake breeze.
Conditions will trend warmer and more humid over the weekend with a shower or thunderstorm possible into Labor Day. Cooler temps aloft associated with mid level trough pivoting through southern ONT/QUE will generate times of clouds and sun over the northern tier today.
958 AM CDT Wed Aug 31 2022 Skies are sunny across the Mid-South this morning with temperatures from the lower 70s to lower 80s. A cold front, currently over north Mississippi is almost out of our area leaving behind pleasant dewpoints to our north. Temperatures will be in the in 90s but dewpoint temperatures will be in the low 60s. Lows tonight will be in the lower 60s. Dewpoint temperatures will yet again be in the low 60s for most of the day.
A strong area of high pressure will bring hot and dry conditions through at least the upcoming weekend.
608 AM CDT Wed Aug 31 2022 (Today through Thursday night) High pressure will continue to dominate the Salt Lake area with a low south of the AZ/NM area. The position of the low will allow for continued moisture transport from the Gulf to the southern Panhandles.
With high pressure over eastern Montana, winds will remain fairly light for today.
626 AM CDT Wed Aug 31 2022 Forecast remains on track for a warmer day with high pressure and temperatures in the upper 80s and lower 90s. At the same time, the upper level ridge continues over the Northern US, this will allow the thermal ridge at 850mb to be over Montana and western North Dakota. All of these ingredients come together to produce high temperatures in the upper 80s in the southeast, and the low 90s in the west, closer to the thermal ridge.
With temperatures as warm or warmer today, the current record is in jeopardy. In southwest Montana especially, the lower levels of the atmosphere will still be rather dry, making it difficult for any precipitation to make it all the way to the ground.
329 AM PDT Wed Aug 31 2022 A strong ridge of high pressure will deliver very hot conditions through the end of the work week.
This feature a sfc reflection of a short wave(S/W) trof seen aloft on water vapor imagery acrs the Dakotas. LLVL return flow up into the sfc trof on backside of ridge complex, as well as additional short wave energy digging down the plains in northwest flow will produce areas of precip acrs the central plains and MO RVR Valley today and tonight, while the ridge maintains the dry weather locally.
603 AM CDT Wed Aug 31 2022 Weak high pressure over the Missouri and mid Mississippi river valley today will settle east into the Ohio river valley on Thursday.
Highs today in the lower 90s, though heat indices of 101-106 are expected. Brief CIG/VIS reductions will be possible in stronger activity for much of the area, with KSUA having the lowest chance for seeing reductions.
443 AM MDT Wed Aug 31 2022 Current upper air analysis and WV imagery shows a strong ridge in place over the western US and northwest flow over the northern plains. The dry and warm pattern continues as the ridge stays in place over the west.