Aikyam-Lab/Synoptic-Bench huggingface dataset:
To our west, a low pressure system is off the coast of Vancouver Island and this will move towards the WA coastline by daybreak tomorrow. In the lower elevations of the Magic Valley and Snake Plain, somewhere in the 1/4 - 3/4" range over the next few days. Temperatures tomorrow will be noticeably cooler with highs generally in the 40s and 50s but most of the precip outside of the central mountains will likely be rain below 7000 ft or so.
Much warmer than normal temperatures will continue across the Mid-South through the weekend as an upper level high pressure system prevails across the southeast U. A cold front will stall north of the region late this week and bring the return of rain chances mainly for areas north of Interstate 40.
1255 PM CDT Tue Oct 24 2023 (Today through Wednesday night) Today into tomorrow night, neutrally tilted longwave trough, currently centered over Baja California, will advance northeastward to KS/OK, passing over the Panhandles in the process.
(This evening through Wednesday) High pressure and dry weather will remain through the short term. South to southeasterly low to mid level winds will advect moisture into the low levels with scattered clouds expected to increase in coverage by Wednesday.
131 PM EDT Tue Oct 24 2023 High pressure will maintain dry conditions through much of the week.
Current temps in the lower 70s to lower 80s will see a warm up into the mid to upper 80s this afternoon, lower 90s at most.
148 PM EDT Tue Oct 24 2023 Persistent high pressure system situated over the Carolinas will continue to keep weather relatively calm in our area for the rest of the day. (Today and tonight) Ridging aloft will continue to build over the Gulf of Mexico with quiet weather persisting.
Conditions are quickly beginning to deteriorate from east to west as high pressure continues to build southward across the Florida Peninsula and the Florida Keys. Plenty of sunshine coupled with a northeast to east wind has kept temperatures tempered in the lower to mid 80s with dewpoints 65 to 70 degrees.
317 PM EDT Tue Oct 24 2023 High pressure will modify while extending across the southern middle Atlantic and Carolinas through the end of the week. High pressure continues to influence the region tonight. Upper level trough axis is to the west of NC, but will continue to build across the region tonight and through the week. Otherwise overnight lows will be in the low 40s north to mid/upper 40s south. A strengthening upper level ridge will continue to shift east with the main axis over Central NC Wednesday. High pressure anchored over the region will influence the region again, but by Wednesday afternoon light winds will be from the south/south east. Whiles skies will be mostly clear on Wednesday there is another chance for the development of low status and fog Wednesday night with increase moisture in the lower levels.
Breezy southwesterly winds expected today and Wednesday on the west side of a sprawling eastern CONUS high, which is transporting seasonably warm air and richer moisture through the area ahead of a frontal trough that stretches from the northern Great Lakes to central Plains. Most HREF member models are focusing subsequent waves of thunderstorms well north of the CWA later today into tonight as the warm front likely surges north, while southern portions of Michigan could maintain partly sunny skies through the day and boost temperatures well into the 70s. Strong southwest flow aloft will continue through the weekend, until a strong cold front blows through southwest Lower.
354 PM EDT Tue Oct 24 2023 High pressure will settle across the Carolinas through midweek, with warm southwesterly flow allowing for above normal temperatures to evolve locally through the remainder of the workweek. This region is the typically more windy and it is farther away from the high pressure center. Across northeastern Kentucky and southern Ohio, specifically the lower Scioto Valley, low winds and more sheltered locations will see temperatures drop into the lower 50s. The regional-scale surface pressure pattern has not changed much, with broad high pressure still dominant along the East Coast.
Currently we have high pressure over the Mid Atlantic States and low pressure in the southern Caribbean Sea and Hurricane Tammy in the Atlantic. This strong wind coming off the Atlantic will keep slightly cooler conditions for the inland parts of Florida and the east coast.
137 PM EDT Tue Oct 24 2023 High pressure remains over the Mid Atlantic and Carolinas for much of the week.
Unsettled and cooler weather will stick around much of this week, with even colder and windier conditions for this coming weekend. Moisture transport was a little more robust on the eastern side of the low overnight than was previously thought.
This is in response to an area of low pressure that is currently located over the Baja Peninsula and will drift generally eastward through the day. Flow around this low has tapped into some subtropical moisture and with some instability aloft, has allowed showers and thunderstorms to fire. Elsewhere, partly sunny skies will be the rule with high temps about 5 degrees cooler than yesterday thanks to a weak cold front that has since washed out this morning. Wednesday, the low pressure will be due south of the Four Corners. A few clouds may form over the higher terrain but that looks to be it. Models are generally aligned on a closed low dropping into the PACNW Wednesday night.
1250 PM EDT Tue Oct 24 2023 High pressure remains over the Mid Atlantic and Carolinas for much of the week.
(Tonight) Broad high pressure will remain over the mid-Atlantic region through the overnight hours.
1157 AM CDT Tue Oct 24 2023 (Rest of Today) The main concern for today continues to be fire weather as high pressure remains centered over the Mid Atlantic region and very dry air anchors over the Tennessee Valley.
Tomorrow, it looks like the ridge should advance northeast to the Central Plains while the upper low over the Pacific Northwest deepens and shifts a bit south over the west coast. Temperatures will be similar to those today, maybe a few degrees cooler on average. Humidity will also be similarly low across the plains (a little improved in the high country with that moisture working in from the west and slightly cooler temperatures), near or just below 15 percent again in many areas. Expect isolated to scattered showers and storms across the high country by afternoon, and maybe very few survive over the foothills to the adjacent plains.
136 PM EDT Thu Aug 31 2023 High pressure in the Great Lakes will move southeast and settle in the Mid Atlantic Friday.
1206 PM CDT Thu Aug 31 2023 (Today and tonight) An upper level ridge centered across the Desert Southwest will slowly shift east today, closer to West Central Texas.
348 PM CDT Thu Aug 31 2023 (Issued 346 PM CDT Thu Aug 31 2023) Tonight through Friday night: High pressure over Michigan will continue to gradually slide eastward, setting the stage for southerly winds on Friday, which will raise our daytime highs to the low to mid 80s. Dry and sunny conditions will continue throughout the region thanks to the subsidence from the departing high pressure. A low pressure sliding across southern Canada is expected to tighten the pressure gradient, leading to some 20mph gusts across our northern and western CWA Friday afternoon.
Sheppard (Issued 352 AM CDT Thu Aug 31 2023) Today through Friday night: High pressure over the region this morning will slowly move to the lower Great Lakes for this evening, while an upper ridge will move in from the west. The upper low and associated wave of low pressure just north of MT will track to James Bay Canada by Fri nt. The sly winds and warm advection will boost temps into the lower to middle 80s for Fri.
(This afternoon through Friday Night) Upper level ridging will continue to be main weather player through Friday night. Also a subtle upper level low is expected to develop across southern MS River Valley region as Friday progresses, making upper level flow across our area a little more diffluent than has been experienced over last couple of days. Highs on Friday, due to this southerly moisture advection fetch pattern developing and becoming more enhanced, will be warmer than those being experienced today, generally mid to upper 80s, upper 70s to lower 80s Cumberland Plateau Region.
Low pressure sliding down the coast from the Pacific Northwest will bring continued cooling into the weekend. (This evening through Friday) The next 36 hours will be dominated by an area of low pressure off the Pacific Northwest. While it will only slide down to coastal Oregon, it will swing a cold front across the Bay Area and Central Coast late this afternoon and into the evening. While the cooler temps will make it feel like fall outside, it is not the only story with this front. This low will cause lift and the oceanic air will bring the moisture, which means we can expect to some water falling out of the sky with this front. In short for the short term, cooler and damp.
Warm air advection is expected to continue on Friday, resulting in warmer high temperatures.
Temperatures on the Caprock early this afternoon are in the low 90s on their way to the upper 90s. The persistent upper high centered over New Mexico today will expand and pivot to the northeast tomorrow.
307 PM EDT Thu Aug 31 2023 Currently, high pressure is over the area and will continue to remain over the area through the period. Since this deck of stratus is slow to decay, temperatures have been cooler than guidance; therefore, opted to go slightly cooler than guidance for highs today. Models do suggest that the stratus will dissipate later this afternoon and into the overnight; however, cooler temperatures from today are forecast to linger into tonight. High pressure continues to remain overhead for Friday but is forecast to shift southeast. As this occurs, warmer temperatures are forecast to build into the region with high temperatures for Friday being about 10 degrees warmer than Thursday. Overnight lows will also be warmer. Lastly, with warmer temperatures being advected into the region, an increase in moisture is expected as well.
225 PM EDT Thu Aug 31 2023 Dry weather is expected through the holiday weekend courtesy of building high pressure.
Similar conditions are expected tomorrow with little change to the synoptic pattern as our area remains between a mid-level low over Louisiana and the Subtropical Ridge over the Southern and Central Plains.
Overnight will be partly to mostly cloudy with temperatures ranging from the low 60s to the low 70s. Overnight moisture will increase as an upper level low will begin lifting into the area bringing chances for isolated to scattered showers and storms throughout Friday mainly East of I- 55 and mainly in the afternoon. /KP/ This weekend, an upper level low will continue to hang over the LA/TX state line, bring southerly flow and also some well needed moisture to the region.
WV imagery shows the upper ridge centered over New Mexico, and is expected to continue developing eastward to Kansas/Oklahoma over the next 24 hours.
(Tonight through Friday night) Surface pressure gradient remains very weak as ridging builds in from the west with a cutoff mid-level low developing over North Texas. There is a very slight chance of patchy fog development over the Coastal Plains late overnight into sunrise with dewpoints recovering into the low to mid 70s under mostly clear skies and calm winds. Dewpoints in the upper 50s to near 70 tomorrow will allow for max temperatures to climb to around the triple digit mark across most of South Texas and the low 70s along the coast. Typical summer nights with lows in the low 70s inland to around 80 along the coast.
316 PM CDT Thu Aug 31 2023 Patchy clouds are moving southwestward through portions of the Quad State region this afternoon with northeasterly flow south of the Great Lakes high pressure system. Mostly clear skies and calm winds tonight allow temperatures to drop to the low to mid 50s as dew points remain low. Ridging will build again over the middle of the country, with an upper low developing along the Gulf Coast of TX/LA.
(This evening through Friday) The mid-level ridge across the southwest U. The ridge will continue to move eastward tomorrow as a closed-low develops across the west coast. As a result, forecast temperatures will continue their gradual increase tomorrow with a ~595 dam ridge centered across northwest Oklahoma/Kansas. The end result is above-average temperatures are forecast (ranging from the low 90s across the northeast to low 100s deg F across the southwest). Heat indices are forecast to be similar (or even lower!) than the air temperature with the lower dew points.
The area of high pressure and cooler air mass will remain over the region tonight into Friday. The area of high pressure will start to move off to the east on Friday. Highs will range from the lower 80s across the eastern Ozarks to the upper 80s across extreme southeastern Kansas on Friday. The upper Level ridge will then start to build back to the east towards the area this weekend.
614 PM CDT Thu Aug 31 2023 Precipitation chances return to the forecast due to a low pressure system that will meander over the Lower Mississippi Valley through the weekend.
(Tonight) Other than some high clouds spreading into the area from the SSW, quiet/tranquil wx conditions will prevail across the central TN Valley into early Fri, as high pressure remains layered from the OH Valley SW into the lower MS Valley. Given the increase in high clouds, overnight temps will trend a few degrees warmer compared to this morning, with lows mainly in the lower/mid 60s.
452 PM PDT Thu Aug 31 2023 Low pressure sliding down the coast from the Pacific Northwest will bring continued cooling into the weekend. (This evening through Friday) The next 36 hours will be dominated by an area of low pressure off the Pacific Northwest. While it will only slide down to coastal Oregon, it will swing a cold front across the Bay Area and Central Coast late this afternoon and into the evening. While the cooler temps will make it feel like fall outside, it is not the only story with this front. This low will cause lift and the oceanic air will bring the moisture, which means we can expect to some water falling out of the sky with this front. In short for the short term, cooler and damp.
Opted for close to a persistence forecast for high temperatures, with mid to upper 90's likely for most of the lower elevations. Tomorrow, it looks like the ridge should advance northeast to the Central Plains while the upper low over the Pacific Northwest deepens and shifts a bit south over the west coast. Temperatures will be similar to those today, maybe a few degrees cooler on average. Humidity will also be similarly low across the plains (a little improved in the high country with that moisture working in from the west and slightly cooler temperatures), near or just below 15 percent again in many areas. Expect isolated to scattered showers and storms across the high country by afternoon, and maybe very few survive over the foothills to the adjacent plains.
802 PM EDT Thu Aug 31 2023 Drier air will continue to move into the area through the weekend, with cooler temperatures also expected across the region. A pressure ridge over the Northeast is building south along the Eastern Seaboard. Temperature forecast appears on track with cooler temps north to slightly warmer south.
754 PM EDT Thu Aug 31 2023 High pressure in the Great Lakes will move southeast and settle in the Mid Atlantic Friday.
605 PM CDT Thu Aug 31 2023 (Tonight) Tranquil conditions are expected to persist through the overnight hours as high pressure remains in control of the sensible weather across the Tennessee Valley. Overnight lows drop down into the mid 60s overnight, a few degrees warmer than experienced Thursday morning.
739 PM EDT Thu Aug 31 2023 Drier air will continue to move into the area through the weekend, with cooler temperatures also expected across the region. A pressure ridge over the Northeast is building south along the Eastern Seaboard. Temperature forecast appears on track with cooler temps north to slightly warmer south.
708 PM EDT Thu Aug 31 2023 High pressure will brings generally VFR conditions this forecast period with just a chance of minor MVFR fog KPTK south where light southeast flow will advect low level moisture in from Lakes St Clair and Erie late tonight. Deep layer stability and columnar dryness held within a pervasive 1021 mb high pressure system ensuring another period of benign wx conditions late this afternoon. Seasonably cool thermal profile in residence fortified by low level northeast flow, lending to a traditional early fall diurnal temperature response despite the high degree of insolation.
1029 PM EDT Thu Aug 31 2023 High pressure over our region tonight and Friday will gradually move away to the southeast during the course of the long holiday weekend. anomalously strong H5 ridge centered over the heart of the country will nose across the Lower Great Lakes through Friday night. it will be quite cool (downright chilly Srn Tier) with mins ranging from the lower 50s along the lake shores and across much of the lake plain to the low to mid 40s across the Srn Tier and Lewis county.
633 PM EDT Thu Aug 31 2023 High pressure will build across the area and persist through the holiday weekend. High pressure and quiet weather are in place tonight and for the foreseeable future. The models are in excellent agreement with high pressure maintaining control across the Mid Atlantic throughout the weekend.
Issued by National Weather Service Los Angeles/Oxnard CA 210 PM PDT Thu Aug 31 2023 A developing low pressure system along the West Coast will bring cooling through the weekend with the greatest cooling on Friday.
LT Strong upper low was shifting across south central Canada. Subsidence behind this low was providing a dry day for southern Montana and northern Wyoming. An upper trough will deepen and drop into Southeast Oregon and northwest California late tonight and Friday. This will turn winds aloft to the southwest and build a ridge into eastern Montana. Therefore, temperatures will be a little warmer Friday, with high nosing into the upper 80s to lower 90s. This, combined with weak energy swinging around the upper low to the west. PoPs will mainly be confined to the higher terrain as easterly low level winds will place a cap on the western and central plains.
623 PM CDT Thu Aug 31 2023 (This evening through Friday) A low pressure system will develop over the lower MS river valley through the day today and move to the west towards Texas through the day on Friday. At the same time, high pressure tries to develop behind the westward shift of the low pressure system, and over the Appalachians.
Key Message: 1) Another rather seasonably cool night tonight, with a bit of a warm up for Friday but humidity stays on the low side. Will bank on southeast sfc winds maintaining at least 3- 5 KTs to keep temps from dipping cooler, otherwise some mid 40s could occur again in some spots. The above mentioned ridge will push off eastward enough to allow increasing southeasterly to southerly return flow as the progresses. Increasing thicknesses and mixing levels will help temps warm up into the low to mid 80s by later afternoon, with warmer values more prevalent to the west.
751 PM MDT Thu Aug 31 2023 High pressure will build into the Plains of Montana today and tomorrow, bringing a gradual weakening of the winds through the evening hours.
Currently - The Keys are located very near the axis of a pressure ridge that lifted northward out of the Caribbean Sea. This evenings sounding indicated a good amount of drier air through the lower levels despite an overall precipitable water close to two inches. Short Term Update - Through the overnight period deep layered ridging will remain in control of Keys weather. While high pressure will begin spilling southward down the eastern United States, it will not quite reach the Keys. The Keys will remain near the old ridge axis. While a few island locations may dip below 80 due to radiational cooling, most island locations won't be able to shake the lower 80s. A nearby ridge axis will result in light and variable breezes across Keys waters through the overnight period.
614 PM CDT Thu Aug 31 2023 (This afternoon through Friday Night) Upper level ridging will continue to be main weather player through Friday night. Also a subtle upper level low is expected to develop across southern MS River Valley region as Friday progresses, making upper level flow across our area a little more diffluent than has been experienced over last couple of days. Highs on Friday, due to this southerly moisture advection fetch pattern developing and becoming more enhanced, will be warmer than those being experienced today, generally mid to upper 80s, upper 70s to lower 80s Cumberland Plateau Region.
30/Sirmon Precipitation chances return to the forecast due to a low pressure system that will meander over the Lower Mississippi Valley through the weekend.
621 PM CDT Thu Aug 31 2023 (This evening through Friday) The mid-level ridge across the southwest U. The ridge will continue to move eastward tomorrow as a closed-low develops across the west coast. As a result, forecast temperatures will continue their gradual increase tomorrow with a ~595 dam ridge centered across northwest Oklahoma/Kansas. The end result is above-average temperatures are forecast (ranging from the low 90s across the northeast to low 100s deg F across the southwest). Heat indices are forecast to be similar (or even lower!) than the air temperature with the lower dew points.
726 PM EDT Thu Aug 31 2023 Dry weather is expected through the holiday weekend courtesy of building high pressure.
1030 PM EDT Thu Aug 31 2023 High pressure in the Great Lakes will move southeast and settle in the Mid Atlantic Friday.
Afternoon highs in the lower 90s expected north of I-4 with mid 90s southward. The synoptic setup this afternoon features troughing aloft to our north and west and ridging over the Bahamas extending westward over Florida. At the surface, Idalia continues to spin offshore the Carolinas, with weak troughing over the northern part of Florida and ridging over the southern part. Weak high pressure builds over the state tonight into Friday as Idalia shifts farther east into the Atlantic, though moisture remains high, so numerous showers and storms can be expected.
Overnight will be partly to mostly cloudy with temperatures ranging from the low 60s to the low 70s. Overnight, moisture will increase as an upper level low begins lifting into the area, and daytime heating will bring chances for isolated to scattered showers and storms mainly Friday afternoon east of I-55. /KP/ This weekend, an upper level low will continue to hang over the LA/TX state line, bring southerly flow and also some well needed moisture to the region.
An upper level trough/low is expected to loom overhead as we head into the weekend.
High pressure will build into the Plains of Montana today and tomorrow, bringing a gradual weakening of the winds through the evening hours.
Friday will be several degrees cooler than today as an upper low over southern Oregon/northern California brings increasing clouds and showers into our area. Southeast Oregon will see a 10-40% chance of showers and thunderstorms associated with the upper low on Friday, while far eastern and southern portions of our forecast area see similar chances of showers and thunderstorms due to monsoonal moisture increasing in southerly flow aloft.
806 PM EDT Thu Aug 31 2023 Dry weather is expected through the holiday weekend courtesy of building high pressure.
614 PM CDT Thu Aug 31 2023 Patchy clouds are moving southwestward through portions of the Quad State region this afternoon with northeasterly flow south of the Great Lakes high pressure system. Mostly clear skies and calm winds tonight allow temperatures to drop to the low to mid 50s as dew points remain low. Ridging will build again over the middle of the country, with an upper low developing along the Gulf Coast of TX/LA.