Aikyam-Lab/Synoptic-Bench huggingface dataset:
Upper ridge shifts south and west of the area today while a trough digs southward over the eastern U. Temperatures will not be quite as hot as the ridge shifts and shower activity increases.
354 AM CDT Sun Aug 1 2021 For today and tonight, a cold front has cleared the forecast area with north winds in its wake.
304 AM EDT Sun Aug 1 2021 Showers with a thunderstorm or two will work southeast through the area along a cold front early this morning.
1145 PM EDT Sat Jul 31 2021 High pressure will maintain fair skies and dry conditions until the approach of a Sunday cold front. High pressure under wnw flow aloft wl maintain dry and seasonably cool weather tonight. A very strong mid level trough will translate across the eastern Great Lakes and over New York on Sunday with sfc cold frontal passage acrs the Upr OH slated for afternoon/early eve. Given the magnitude of projected deep layer shear (~40Kt) and depth of the mid level thermal trough, severe storms are possible with inhibition coming from an overall lack of instability. The storms and severe threat wl be alleviate via fast trough/frontal progression, and likely clear the area by 8 pm. Large-scale troughing will dominate the eastern CONUS through the week.
The pleasant, dry weather continues for the area through mid week with temperatures in the lower to middle 80s, with continued mild humidity.
The onshore surface pressure gradient from San Francisco to Sacramento is slightly weaker compared to 24 hours ago, but despite this weaker gradient, temperatures are running slightly cooler. This will translate similarly in the lows at sunrise this morning; temps in/around the Delta will drop to the upper 50s-low 60s while other Valley communities cool to the middle 60s-low 70s. Northern California continues to find itself nestled between an approaching trough west of the coast and an high-amplitude ridge that has strengthened over the Intermountain West.
/issued 335 AM EDT Sun Aug 1 2021/ Currently at the surface, the sub-tropical ridge axis continues to extend from the Atlantic across southern Florida. Relatively dry air will keep rain chances limited today with isolated showers and storms developing near the coast in the morning, then scattered showers and storms over the interior in the afternoon, with the highest rain chances expected over the Nature Coast where moisture is more favorable.
This will bring cooler and less humid conditions. Expect highs in the low to mid 80s and with dewpoints in the upper 50s and lower 60s yielding afternoon humidity values in the 40% range.
306 AM CDT Sun Aug 1 2021 Broad upper trough over the eastern half of the CONUS becoming a bit more enhanced per recent water vapor imagery, with the most robust precipitation along and behind a cold front becoming limited to Oklahoma. Despite clearing skies early, a much cooler airmass only allows temps to reach the lower to middle 80s for the most part with dewpoints mixing down into the 50s.
Today Through Monday Night A cold front is dropping south into the state early this Sun morning. highs will be cooler in the upper 70s to upper 80s. and dewpts will be more comfortable in the low to mid 60s by this afternoon. the cold front will slow across SRN AR. and more stable/drier/cooler air filters into the state. These drier/cooler conditions will remain in place to wrap up the short term period.
300 AM EDT Sun Aug 1 2021 Shower and thunderstorm chances return today with a crossing cold front. High pressure should return dry and cooler than average weather on Monday.
Cooler conditions are expected this afternoon with high temperatures in the 70s to around 80 in the Metro. Humidity will remain low as dew points top out in the lower 50s. Temperatures will be a few degrees warmer in the upper 70s and lower 80s. Despite this and broad low pressure over the Plains, the Gulf will remain largely cut off. High pressure centered over the southern Great Lakes Monday night will remain nearly stationary through the week and its axis could extend southwestward toward the southern Plains.
647 AM CDT Sun Aug 1 2021 Limited weather concerns are expected in the near-term as upper level ridging builds across the western US. This will help to keep diurnal heating to a minimum and with cooler air filtering in with northwest flow, will keep daytime highs in the 80s for today. Regardless of smoke, temperatures will begin to rise on Monday with afternoon highs ranging from the low 90s in western and southwest Nebraska to the mid 80s in north central Nebraska.
918 AM EDT Sun Aug 1 2021 Shower and thunderstorm chances return today with a crossing cold front. High pressure should return dry and cooler than average weather on Monday.
Skies were mostly clear across eastern Iowa and northwest Illinois as high pressure was taking hold over the Upper Midwest.
Stronger winds during the day may occur to the west of the CWA for the most part, closer to the positioning of the Low Level Jet feature. Upper level ridge pattern will remain in place, allowing for above normal temperatures and mainly dry weather through at least the midweek.
/issued 333 AM CDT Sun Aug 1 2021/ SHORT TERM (Now through Monday): Mid-level ridging over the West and a large scale trough over the East with high pressure over the Gulf of Mexico and a weak cold front pushing into North Texas. A weak cold frontal boundary will push into central and south central Texas today and tomorrow, but kept mentionable pops out of the fcst for now.
Broad upper trough over the eastern half of the CONUS becoming a bit more enhanced per recent water vapor imagery, with the most robust precipitation along and behind a cold front becoming limited to Oklahoma. Despite clearing skies early, a much cooler airmass only allows temps to reach the lower to middle 80s for the most part with dewpoints mixing down into the 50s.
627 AM CDT Sun Aug 1 2021 A cold front is moving south across the state this Sun morning. Today Through Monday Night A cold front is dropping south into the state early this Sun morning. highs will be cooler in the upper 70s to upper 80s. and dewpts will be more comfortable in the low to mid 60s by this afternoon. the cold front will slow across SRN AR. and more stable/drier/cooler air filters into the state. These drier/cooler conditions will remain in place to wrap up the short term period.
630 AM CDT Sun Aug 1 2021 Mid-level ridge looks to remain in place over the Rockies through the short term. NCEP models are a bit warmer than the ECMWF. An upper ridge will remain situated over the Rockies and the western CONUS through at least the first half of this period. Guidance still continues to show a series of s/w troughs working over the top of the ridge and down across our region toward the middle to latter half of the work week. By the end of this period, a more robust system is progged to work across the northern tier of the country and may flatten the upper ridge more significantly.
1028 AM EDT Sun Aug 1 2021 High pressure continues across south FL keeping SW flow in place across the local area.
Min RHs this af noon will drop into the upper teens to middle 20s across the region as guidance continues the upper level ridge today limiting storm impact mainly to the south. Otherwise a cooler, hazier day across the region with highs today across the high plains from the upper 70s into the middle 80s with upper 60s to low 80s west of the Laramie Range. High pressure builds once more across the American Southwest with continued influence over our region with pockets of vorticity advection leading once more to afternoon showers on the Wyoming side.
Marquardt (Issued 326 AM CDT Sun Aug 1 2021) Today through Monday: With the cold front through the area, expect cooler temperatures today compared to yesterday with highs in the low to mid 70s.
709 AM EDT Sun Aug 1 2021 Shower and thunderstorm chances return today with a crossing cold front. High pressure should return dry and cooler than average weather on Monday.
A cold front is on the move southward and is already making its way through the TX South Plains region into the Permian Basin. As we move into this afternoon, the atmosphere will be primed for additional convection along and behind the stalled cold front.
557 AM CDT Sun Aug 1 2021 Convection has died across the region as the cold front and outflow boundaries that were previously along our southern border have been pushed southward by an advancing low-level anticyclone. Aloft a mid-level trough has dropped southward into the eastern US, throwing the region back into northwest flow. The cold front will also help advance the low-level anticyclone further into the region, clearing clouds out of the area tonight.
941 AM CDT Sun Aug 1 2021 With northerly winds spreading over southeast Oklahoma and slightly cooler and drier air spreading into that region aided by storm outflow, we canceled the heat advisory for Atoka and Bryan counties.
seasonably cool reading are being observed to start the day with dewpoints having already dropped into the lower 60s early this morning. expect a seasonably nice afternoon with dewpoints in the 50s and temperatures in the lower 80s. continue to expect high pressure across the intermountain west to result in north northwesterly flow aloft for the next several days.
642 AM CDT Sun Aug 1 2021 For the 12Z TAFs, MVFR and IFR conditions are expected to persist at the terminal sites until around early this afternoon in the wake of a cold frontal passage. /Issued 354 AM CDT Sun Aug 1 2021/ For today and tonight, a cold front has cleared the forecast area with north winds in its wake.
Along with the clear/ending of the rain, dew points in the low to mid 60s should slowly filter in from KY as well.
644 AM CDT Sun Aug 1 2021 (Today and tonight) The combination of a slow moving cold front, abundant tropical moisture and weak upper level dynamics will bring scattered to numerous showers and thunderstorms mainly during the afternoon and evening hours when weak to locally moderate instability will be in place. Expect cooler temperatures today with highs staying below 100.
The upper level ridge is expected to continue moving to the northwest as a weak inverted trough develops in the southern Gulf and the trough across the Midwest begins to dig south. As the previously mentioned trough continues to dig south, a cold front will be sent south across the state.
(Today and tonight) The combination of a slow moving cold front, abundant tropical moisture and weak upper level dynamics will bring scattered to numerous showers and thunderstorms mainly during the afternoon and evening hours when weak to locally moderate instability will be in place. Expect cooler temperatures today with highs staying below 100.
447 AM MDT Sun Aug 1 2021 At the upper levels this morning, upper ridge is situated over the rockies, with the upper trough over the great lakes region, and northwest flow aloft over the forecast area. As the ridge shifts eastward towards the northern plains, temps warm back up for this week, with highs generally in the upper 80s and low to mid 90s all week long.
501 AM CDT Sun Aug 1 2021 Mid-level ridge looks to remain in place over the Rockies through the short term. NCEP models are a bit warmer than the ECMWF. An upper ridge will remain situated over the Rockies and the western CONUS through at least the first half of this period. Guidance still continues to show a series of s/w troughs working over the top of the ridge and down across our region toward the middle to latter half of the work week. By the end of this period, a more robust system is progged to work across the northern tier of the country and may flatten the upper ridge more significantly.
Sct showers/storms associated with a cold front impacting far NW AR early in the period with brief MVFR vsbys in -TSRA. Initial thunderstorm outflow has pushed well ahead of the convection, and this boundary should become the effective cold front and sag south into southeast OK/western AR later this morning. Drier and cooler air will finally arrive this evening, as northwesterly upper flow develops.
536 AM EDT Sun Aug 1 2021 Shower and thunderstorm chances return today with a crossing cold front. High pressure should return dry and cooler than average weather on Monday.
Cooler temperatures are expected again, with conditions clearing from south to north through the afternoon.
1107 AM CDT Sun Aug 1 2021 Cold front has slowed somewhat in the higher terrain across far southeast Oklahoma this morning.
308 PM CDT Sun Aug 1 2021 Smoke and its impacts remain the highlight of the short term period.
308 PM CDT Sun Aug 1 2021 A significantly cooler day across the majority of Mid-South this afternoon. Temperatures are running about 10 to 15 degrees cooler than just 24 hours ago, thanks to a mid summer cold front. The Mid-South will see a generous break from the heat this week as an upper low drops into the Lower Mississippi Valley.
334 PM EDT Sun Aug 1 2021 A low pressure system will track across and then away from our area overnight. Low pressure system will track across the area overnight, then off to our northeast by morning. There continues to be potential for heavy rain this evening and overnight as the low tracks overhead and storm vectors continue to show potential for training storms as mean layer winds continue to be out of the southwest which is pretty much parallel with the surface boundary. Some showers will linger behind the low in what will then be northwesterly flow in it's wake, but precipitation will remain showery and light. The high pressure ridge will remain over our area Monday night, with quiet weather anticipated.
1238 PM CDT Sun Aug 1 2021 With northerly winds spreading over southeast Oklahoma and slightly cooler and drier air spreading into that region aided by storm outflow, we canceled the heat advisory for Atoka and Bryan counties.
Upper pattern reveals a ridge over the intermountain west that is de- amplifying over time as a number of waves over the northern tier help break it down. This will allow temperatures and dew points to slowly increase over time, although slowly since the affects of the upper ridge are diminishing over our area. We have already been trending warmer for the weekend and this seems like a prudent direction.
1220 PM CDT Sun Aug 1 2021 Limited weather concerns are expected in the near-term as upper level ridging builds across the western US. This will help to keep diurnal heating to a minimum and with cooler air filtering in with northwest flow, will keep daytime highs in the 80s for today. Regardless of smoke, temperatures will begin to rise on Monday with afternoon highs ranging from the low 90s in western and southwest Nebraska to the mid 80s in north central Nebraska.
Upper level analysis places high amplitude ridge over the Rockies. On Monday, not much new to say as western ridge remains the dominate feature. Western ridge remains the dominate feature.
monsoonal moisture creeps east off the Continental Divide and onto the adjacent Colorado plains as an upper level trough moves over the divide from the west.
/Issued 1107 AM CDT Sun Aug 1 2021/ Cold front has slowed somewhat in the higher terrain across far southeast Oklahoma this morning.
1214 PM CDT Sun Aug 1 2021 (Today and tonight) The combination of a slow moving cold front, abundant tropical moisture and weak upper level dynamics will bring scattered to numerous showers and thunderstorms mainly during the afternoon and evening hours when weak to locally moderate instability will be in place. Expect cooler temperatures today with highs staying below 100.
An upper level high continues to sit across the southwest CONUS as northwest flow dominates through most of the work week.
ABM Chattanooga Airport, TN 86 68 85 66 87 / 50 20 10 10 20 Knoxville McGhee Tyson Airport, TN 84 65 86 65 85 / 40 10 10 10 30 Oak Ridge, TN 84 64 84 64 85 / 40 10 10 10 20 Tri Cities Airport, TN 82 60 83 62 80 / 40 10 10 20 50.
230 PM MDT Sun Aug 1 2021 Current surface analysis shows weak high pressure centered to the east of the area, with frontal boundary to the west and south of the region. Upper level analysis shows ridging over the Rockies into southwest Canada, with dry northwest flow aloft across the northern and central Plains. Temps are mostly in the 80s, with 70s over the higher Black Hills. A general ridging pattern will stay in place across the western US this week, with some buckling at times as weak disturbances try to move through it from the Pacific NW into the northern Plains. Storm chances look to be minimal much of the week, especially in the near term as the ridge holds strong.
The high will be over head tonight bringing light winds.
Cold front/northerly wind shift will continue to work southward through Lower Michigan early this morning, and we could see a few more showers before it passes through. Additional showers, and even a few thunderstorms, are expected across Lower Michigan today, with the highest coverage expected during the afternoon and early evening. Upper trough will pivot down through the area adding forcing, while lapse rates steepen as upper cold pool passes overhead during peak (surface) heating. Any thunderstorms that do form will have a higher than normal chance to produce small hail, as freezing levels dip just below 10 kft.
100 PM EDT Sun Aug 1 2021 Showers and thunderstorms will advance southeast today ahead of a crossing cold front. High pressure will return dry and cooler than average weather on Monday.
1214 PM CDT Sun Aug 1 2021 Convection has died across the region as the cold front and outflow boundaries that were previously along our southern border have been pushed southward by an advancing low-level anticyclone. Aloft a mid-level trough has dropped southward into the eastern US, throwing the region back into northwest flow. The cold front will also help advance the low-level anticyclone further into the region, clearing clouds out of the area tonight.
Mid-level ridge looks to remain in place over the Rockies through the short term. NCEP models are a bit warmer than the ECMWF. An upper ridge will remain situated over the Rockies and the western CONUS through at least the first half of this period. Guidance still continues to show a series of s/w troughs working over the top of the ridge and down across our region toward the middle to latter half of the work week. By the end of this period, a more robust system is progged to work across the northern tier of the country and may flatten the upper ridge more significantly.
cooler and drier air has begun to funnel into northeastern Oklahoma and will continue to push south tonight and tomorrow, making for a few pleasant days for the first half of the work week.
/Issued 354 AM CDT Sun Aug 1 2021/ For today and tonight, a cold front has cleared the forecast area with north winds in its wake.
131 PM EDT Sun Aug 1 2021 High pressure building into the region today will provide pleasant weather through much of the week.
SHORT TERM (Tonight through Monday Night): A trough over the eastern US will begin to dig into the Gulf Region through the short term bringing with it a weak cold front into northern Texas by Monday. This will allow for a chance of showers and thunderstorms Monday night, mainly across the northern Ranchlands as the cold front begins to sag into south-central Texas.
7 inch over most of the CWA behind a cold front that looks to be across Carbon County into western Colorado. High pressure builds once more across the American Southwest with continued influence over our region with pockets of vorticity advection leading once more to afternoon showers on the Wyoming side.
High pressure will be southeast of the area Today, with a frontal zone just to the north. The surface front will stall over area during the day Monday, as 500mb trough digs into southeastern US. The combination of diurnal heating, convergence along the front and added instability associated with upper trough will yield a fairly active convective day on Monday.
910 AM PDT Sun Aug 1 2021 Building high pressure will lead to rising temperatures and a shrinking marine layer through the middle of the week, with coastal low clouds becoming less likely the next few nights.
Otherwise, most of the CWA was under clear skies with temperatures warming up into the 80s in the lower elevations.
Secondary cold front pushed through central IL earlier today, shifting winds to northerly and advecting lower dewpoint air into the area. With high pressure strengthening across the area this evening, clear skies and calm winds will create favorable radiational cooling that allows temperatures to drop into the mid 50s. While dense fog developed early Sunday morning and favorable radiational cooling is expected tonight, the advection of much drier air (dewpoints about 10 degrees cooler than last night) behind the cold front leaves an uncertain fog scenario for Monday morning.
318 PM EDT Sun Aug 1 2021 An area of low pressure will ride east along a nearly stationary front over NC through this evening.
1128 AM MDT Sun Aug 1 2021 At the upper levels this morning, upper ridge is situated over the rockies, with the upper trough over the great lakes region, and northwest flow aloft over the forecast area. As the ridge shifts eastward towards the northern plains, temps warm back up for this week, with highs generally in the upper 80s and low to mid 90s all week long.
Latest surface analysis places a cold front east to west across north Mississippi. Current temperatures range from the mid 70s north of I-40 to the low to mid 80s south. The rest of the forecast in on track with temperatures climbing into the low to mid 80s north of I-40, with highs in the lower 90s to the south.
251 PM EDT Sun Aug 1 2021 Showers and storms will quickly taper off from west to east this evening, as a cold front moves to the east and south of the area.
CDG Chattanooga Airport, TN 66 86 66 87 66 / 10 10 10 20 0 Knoxville McGhee Tyson Airport, TN 64 86 65 85 65 / 10 10 10 30 20 Oak Ridge, TN 63 84 64 85 64 / 0 10 10 20 10 Tri Cities Airport, TN 60 82 62 80 60 / 10 10 20 50 20.
Are you enjoying the cooler temperatures? I hope so because when you step outside tomorrow morning, you're going to notice a big difference compared to every morning since July 4th. While the sun is expected to return tomorrow, with Middle TN on the west side of an upper level low blanketing the eastern U.
242 PM CDT Sun Aug 1 2021 High temperatures this afternoon were generally in the lower 80s fir high to middle cloud cover over much of the region. Cool high pressure was filtering into the Ozarks today and will continue to do so through tonight. With temperatures cooling into the lower to middle 60 overnight and moisture from rainfall over the past 24 hours, some haze of patchy light fog may develop. Monday will be a rather nice and sunny day across the region with light northeasterly winds and temperatures in the low to middle 80s. For Monday night and through the coming work week, the Ozarks can expect significantly cooler temperatures than last week.
314 PM EDT Sun Aug 1 2021 A crossing front will usher in a period of drier and cooler weather for the coming week.
The vertically integrated smoke and satellite also show smoke coming around the western upper level ridge through Monday night. Highs on Monday will be a few degrees warmer than today in the 80s and lower 90s with lows tonight and Monday night ranging from the mid 50s to the lower 60s. An upper-level ridge will remain in place across the Rockies through much of the work-week, leading to predominantly dry conditions and above average temperatures across the forecast area (highs most likely in the 90s along and west of the James River Valley by the end of the week).
249 PM CDT Sun Aug 1 2021 We continue to see the elevated and near surface smoke/haze get pushed out of the area with high pressure building in. Otherwise, very pleasant/comfortable summer weather remains on tap compliments of Canadian high pressure.