Aikyam-Lab/Synoptic-Bench huggingface dataset:
Relatively dry conditions will continue tonight and Sunday even as a larger scale upper level trough of low pressure pushes ashore in the Pacific Northwest and dips southeast into the Great Basin, setting up an increasingly difluent southwest flow aloft across the Western High Plains. Fairly mild temperatures are likely tonight as a prevailing south-southwest flow reinforces a warmer air mass across the region. Lows generally in the 60s(F) are expected tonight with the lower 70s(F) possible in south central Kansas. Although confined, thunderstorm chances return early in the period as medium range models indicate a broad upper level trough of low pressure settling slowly southeast into the Four Corners Region Monday, continuing to influence a difluent southwest flow aloft across the Western High Plains.
322 AM EDT Sun May 29 2022 High pressure has moved into the North Country today and will persist through Memorial Day. The dry weather will continue for Memorial Day with even warmer temperatures. No precipitation is expected tonight and Monday as an upper level ridge begins to amplify a bit up into our region. As a result any precipitation coming over the top of the ridge would stay to our north and east and thus have kept the forecast dry for Monday, where data the past couple of days had suggested the potential for a shower or two in the northwest flow aloft. With the upper ridge over the area and more sunshine, high temperatures will be even warmer than today with highs in the upper 70s to mid 80s.
429 AM EDT Sun May 29 2022 High pressure today will bring fair weather, albeit with clusters of clouds passing from time to time.
157 AM EDT Sun May 29 2022 High pressure over the central Appalachians moves off the Mid- Atlantic Coast today, allowing a warm front to move across the region through early afternoon.
358 AM EDT Sun May 29 2022 High pressure will strengthen across the southern Mid Atlantic through Memorial Day. A mid-latitude, mid-level ridge over the srn Appalachians will strengthen considerably over NC, to near 588 dam, through 12Z Mon. Increasing moisture in ely flow around high pressure off the Mid Atlantic coast will result in areas of stratus and fog through the ern Carolinas Mon morning, with clear and calm that will otherwise favor low temperatures in the upr 50s to mid 60s. Mid-level ridging will remain strong and influential over NC and result in increasingly hot, but with generally low RH and dry conditions, with high temperatures in the upr 80s-lwr 90s.
Temperatures via the KY Mesonet were generally in the low-mid 50s. For today, high pressure at the surface and aloft will keep skies mostly sunny with slightly warmer conditions. Temperatures will exhibit a quick rise this morning and top out in the lower 80s for afternoon highs. Look for lows in the upper 50s to the lower 60s. The western US will be under a large upper trough. On the eastern side of the trough, near the SD/MD border, a low pressure system will cause the near surface pressure gradient to begin tightening over the Lower Ohio Valley, resulting in southern flow over central Kentucky and southern Indiana.
355 AM EDT Sun May 29 2022 A pacific jet moving inland along west coast this morning will lead to deepening of the western CONUS trough throughout today. This will result in downstream amplification of a mid/upper level ridge over the Midwest/Great Lakes and allow warm advection to ramp up through today.
1243 AM CDT Sun May 29 2022 (Tonight through Sunday night) The mid and upper level subtropical ridge will keep conditions warm and dry across south central Texas through the remainder of this weekend. The lowest minimum humidities near 20 to the mid 20s and the breeziest winds of 15 to 20 mph with gusts to 30 mph are expected across these areas.
Mid lvl ridging ovr the Mid-South, wl sloly translate to the E in the coming days.
That said, the highest chance for severe weather will be in far northeast Nebraska which is in an enhanced risk for severe weather. An attendant cold front will move through the area late Monday afternoon into the evening helping to initiate storms.
The base of the mid and upper level trough over the southeastern states will break off into a weak closed upper level low during the day on Sunday. The upper low will remain over the area through early Monday before gradually dissipating as upper ridging builds over the area. As the upper low meanders over the area on Sunday, boundary layer moisture will increase slightly with precipitable water values increasing to 1. Dry and warmer on Monday as the upper ridge builds over the eastern states. Lows tonight will be in the low to mid 60s inland to upper 60s along the coast.
Water vapor shows evolving upper trof over the western CONUS, with a strong jet streak over the Great Basin and distinct short wave over southeastern ID/northern UT. Main upper low will take shape over southern ID/northern UT on Sunday. Rather widespread convection will likely lift northeast across our zones Sunday night as robust wave ejects from developing upper low. This would spell more widespread precip for our area, along with cooler and windy conditions. At this time, thermal profiles look warm enough for liquid in the Black Hills, although a mix with snow not out of the question at the highest elevations.
338 AM EDT Sun May 29 2022 This ridge of high pressure will bring warm and dry weather through the first half of the week. A ridge will slowly build into the area from the south, but quasi- geostrophic flow overhead today will allow for seasonable temperatures to remain for one more day. High pressure really amplifies into the area overnight, bringing WAA from the SW. The ridge continues to build into the area on Memorial Day, pushing temperatures into the mid to upper 80s, with valleys topping out at 90. High pressure just offshore will continue to pump in a warmer airmass and some additional moisture as well.
305 AM EDT Sun May 29 2022 Dry and warm conditions today as high pressure remains in place across the region. Southerly flow and mostly clear skies will help warm temperatures into the low to mid 80s across Central Indiana. Expect milder temperatures overnight as southerly flow increases dewpoints into the low 60s. The dry and warm pattern will continue on Monday with broad upper ridging across Central Indiana. Persistent southerly flow along with mostly sunny skies will warm temperatures into the upper 80s with dewpoints in the low to mid 60s.
High pressure brings mostly sunny, dry, and warmer weather today. As upper heights begin to increase across the Southern Appalachians, expect slightly warmer temperatures with near seasonal weather. Increase in low-level moisture and upper heights will result in slightly warmer temperatures that are near normal.
High pressure is building into the region aloft and clouds that were present earlier this evening have dissipated in large part. Otherwise, patchy fog will be possible tonight for much of the lower elevations. JB Chattanooga Airport, TN 87 65 89 67 90 / 0 0 10 0 10 Knoxville McGhee Tyson Airport, TN 86 63 88 65 89 / 0 0 10 0 10 Oak Ridge, TN 85 62 87 65 89 / 0 0 10 0 10 Tri Cities Airport, TN 84 59 87 61 87 / 0 0 10 0 10.
1215 AM CDT Sun May 29 2022 (Rest of tonight) High pressure centered over northern Alabama and southern Middle Tennessee this evening has led to clear skies and calm winds. We also are expecting patches of fog to develop in the normal spots close to the Tennessee River, near bodies of water, and in a few rural, cooler spots.
1138 PM CDT Sat May 28 2022 (This evening through Sunday) Temperatures have climbed into the low 80s to mid 90s from east to west respectively this afternoon. Breezy south winds will continue through tomorrow ahead of a long wave trough over the western CONUS. A wind advisory may be needed along and east of I-35 eventually but should be on the low end of criteria. Afternoon highs Sunday will be 1-3 degrees warmer than today with deeper stronger downslope southwesterlies present over the High Plains of Texas.
At the surface, high pressure will shift to the east of the area with southerly flow returning. In the upper levels, a ridge becomes centered over the Carolinas. Temperatures today will be a few degrees warmer than yesterday with highs climbing into the mid 80s for most locations.
229 AM EDT Sun May 29 2022 Building high pressure will keep the region dry and warm into mid week.
High temperatures tomorrow will be warm in the low 90s areawide. Monday morning will start out in the upper 60s and is expected to warm to the low 90s for the afternoon High.
238 AM CDT Sun May 29 2022 Key Messages: - Showers and storms possible tonight - Warm, gusty Monday with storms possible Monday night - Cooler temperatures mid to late week TODAY AND TONIGHT: A couple of chances at some rain coming up. The first will be this morning as the CAMS have been showing some activity developing in the low level moisture transport axis over northern Iowa before sunrise and then translating northeast into the area.
(Today through Monday) The mid to upper level subtropical ridge will remain over Texas through the short term period. The low level flow will continue to be from the southeast keeping a warm, moist airmass in place across South Central Texas.
Will continue the same trends with strong/severe storms across western Mn, with the best chance of redevelopment along the cold front Monday afternoon. As with previous discussions, especially associated with the upper level storm system on Monday, severe storms look likely along the cold front. Beyond Monday night, a much cooler airmass will reside as the storm system that will move out of the Rockies on Monday, becomes a large upper low system across the southern part of Canada by midweek.
This means warmer weather than yesterday, but not excessively warm, and dew points will stay manageable. Tomorrow, temperatures will continue their climb as high pressure becomes established to our east.
Showers and storms, a few of which could become severe, return Sunday evening as a cold front advances toward the region.
104 AM CDT Sun May 29 2022 High pressure continues over the area. Mid lvl ridging ovr the Mid-South, wl sloly translate to the E in the coming days.
400 AM EDT Sun May 29 2022 High pressure builds in for the Memorial Day weekend with warmer daytime temperatures. Another cold front should be approaching the region again by the end of the week. Despite this, high temps should still top out in the lower 90's with mostly sunny through early afternoon.
210 AM EDT Sun May 29 2022 Dry high pressure will continue over our region into mid week with a warming trend.
Wind gusts near 30-35 mph appear likely as pressure gradient increases thanks to a strong low pressure system over the lee-side of the Rockies. Otherwise, expect a very warm afternoon with highs 1-3 degrees warmer than yesterday. Highs will be in the low-mid 90s with heat index values near or slightly above the air temperature.
324 AM EDT Sun May 29 2022 Weak high pressure builds in today.
359 AM CDT Sun May 29 2022 Today through tonight: The weather pattern in the near term will be rather non-descript with weak upper level ridging centered to the west and east of the forecast area.
1148 PM MDT Sat May 28 2022 Updated Aviation Discussion A trend toward cooler and wetter conditions is expected through the holiday weekend with showers today and a few thunderstorms possible across southwest Montana today and tonight. Temperatures will progressively get cooler through the holiday weekend with afternoon temperatures still near or slightly below seasonal averages in the 60s at lower elevations today, but cooling to the 50s and 60s Sunday with the coolest temperatures likely only in the 50s on Monday.
Mid afternoon surface analysis shows expansive high pressure centered over the Lower Mississippi Valley up through the Ohio Valley. The upper ridge will amplify and build eastward across the eastern CONUS through the end of the weekend. The latest GOES-East satellite water vapor imagery depicts a spin over the east-central Gulf Coast which is associated with a weak mid-level low that is trapped underneath the ridge (Rex block pattern). This trough is expected to drift slowly westward toward coastal MS through the remainder of the Memorial Day weekend. S-SEly return flow around the high will result in a gradual increase in humidity over the next few days.
205 AM EDT Sun May 29 2022 On the heels of a cold frontal passage, high pressure builds in from the west overnight and then offshore Sunday afternoon.
1104 PM EDT Sat May 28 2022 Building high pressure will keep the region dry and warm through midweek.
SHORT TERM (Now through Monday): 500 mb high pressure is expected to remain the dominant weather force over Deep South Texas and the Rio Grande Valley during the period. This system will reign despite the fact that its amplitude will be suppressed as a broad 500 mb trough with embedded mid-level lows pushes farther east into the western United States. Surface-wise, thermal low pressure over Mexico will interact more intensely with high pressure situated over the Gulf of Mexico.
126 AM EDT Sun May 29 2022 Building high pressure will keep the region dry and warm through midweek.
High pressure aloft is expected to de-amplify by mid-week and become suppressed farther south as westerlies increase to the north. Significant uncertainty exists will low pressure development off the Southeast U.
For Sunday, A short wave trof will move into the High Plains. A jet streak will move into the High Plains as well. A strong jet max will move into the region Monday afternoon as the upper level trof digs into the area.
Pleasant evening ongoing with high pressure across the Ohio Valley. Beautiful but warm conditions expected for Sunday as high pressure remains firmly in place across the area. Abundant sunshine and the strong southerly flow will allow for temperatures to rise into the low to mid 80s. The trend of slightly warmer overnights will continue into Sunday night as dew points rise into the low 60s with overnight lows in the mid 60s expected.
321 AM EDT Sun May 29 2022 Dry high pressure will remain over our region into the middle of the week, with above normal temperatures expected.
However, high temperatures will be trending cooler today through mid week. A couple of cold fronts will introduce deeper low level moisture to eastern New Mexico mid to late week, where the best chances for showers and thunderstorms will be focused. Drier and warmer conditions return at the end of this week.
Low temperatures will be 5 to 10 degrees below normal, including lows below freezing across the east side on Monday morning.
643 AM EDT Sun May 29 2022 Dry high pressure will remain over our region into the middle of the week, with above normal temperatures expected.
743 AM EDT Sun May 29 2022 High pressure has moved into the North Country today and will persist through Memorial Day. The dry weather will continue for Memorial Day with even warmer temperatures. No precipitation is expected tonight and Monday as an upper level ridge begins to amplify a bit up into our region. As a result any precipitation coming over the top of the ridge would stay to our north and east and thus have kept the forecast dry for Monday, where data the past couple of days had suggested the potential for a shower or two in the northwest flow aloft. With the upper ridge over the area and more sunshine, high temperatures will be even warmer than today with highs in the upper 70s to mid 80s.
740 AM EDT Sun May 29 2022 High pressure will strengthen across the southern Mid Atlantic through Memorial Day. A mid-latitude, mid-level ridge over the srn Appalachians will strengthen considerably over NC, to near 588 dam at 500 mb, through 12Z Mon. Increasing moisture in ely flow around high pressure off the Mid Atlantic coast will result in areas of stratus and fog through the ern Carolinas Mon morning, with clear and calm that will otherwise favor low temperatures in the upr 50s to mid 60s. Mid-level ridging will remain strong and influential over NC and result in increasingly hot, but with generally low RH and dry conditions, with high temperatures in the upr 80s-lwr 90s.
Upper level ridge axis shifts slightly to the east as a longwave trough deepens across the western CONUS.
/EC/ Today through tonight: The weather pattern in the near term will be rather non-descript with weak upper level ridging centered to the west and east of the forecast area.
736 AM EDT Sun May 29 2022 Building high pressure will keep the region dry and warm into mid week.
944 AM EDT Sun May 29 2022 Dry high pressure will remain over our region into the middle of the week, with above normal temperatures expected.
As the mid/upper ridge re- mains the main feature of our weather pattern, POPs will stay low to nil for SE TX these next couple of days. with high temperatures in the lower and mid 90s for inland locations and upper 80s at the beaches. Wind should remain on the elevated side tonight with lows expected in the lower to mid 70s (upper 70s along the immediate coast).
516 AM EDT Sun May 29 2022 SE MI will be under the influence of a strengthening ridge today which will bring VRF conditions through the TAF period. A pacific jet moving inland along west coast this morning will lead to deepening of the western CONUS trough throughout today. This will result in downstream amplification of a mid/upper level ridge over the Midwest/Great Lakes and allow warm advection to ramp up through today.
Then winds pick back up in the afternoon as the upper trough induces a push of stronger southerly winds in the low levels. These storms then spread northeastward through the evening and early overnight, mainly affecting areas from Cambridge up through York.
650 AM EDT Sun May 29 2022 A ridge of high pressure will bring gorgeous weather today and Memorial Day. Ridge stays in place through the first half of the week with hot temperatures across the area. A ridge will slowly build into the area from the south, but quasi- geostrophic flow overhead today will allow for seasonable temperatures to remain for one more day. High pressure really amplifies into the area overnight, bringing WAA from the SW. The ridge continues to build into the area on Memorial Day, pushing temperatures into the mid to upper 80s, with valleys topping out at 90. High pressure just offshore will continue to pump in a warmer airmass and some additional moisture as well.
Strengthening upper ridge over the southeast United States producing a strong mid-level capping inversion (around 700mb) inhibiting convective development. Surface ridging into the southern Appalachians will keep winds generally less 10kts. Mostly clear sky expected with light southerly winds as high pressure remains in control of our weather. JB Chattanooga Airport, TN 87 65 89 67 89 / 0 0 10 10 10 Knoxville McGhee Tyson Airport, TN 87 63 88 65 89 / 0 0 10 10 10 Oak Ridge, TN 85 63 88 65 89 / 0 0 10 0 10 Tri Cities Airport, TN 84 60 87 61 87 / 0 0 10 0 10.
Gusty winds and cooler temperatures continue today as a trough of low pressure digs over the western states followed by lighter winds and temperatures around 10 degrees below normal on Memorial Day.
Today and Monday A slow moving low pressure system will continue cause these on and off rain showers and thunderstorms in northern Nevada and portions of central Nevada tomorrow evening. Cooler temperatures will cause rain showers at locations 6500 feet and above in Elko county to change to snow today. Eastern areas will remain cooler with many places struggling to reach 50 as continue rain and mountain snow showers persist. Lows will drop below freezing by Sunday morning for most places of northern and central Nevada.
704 AM EDT Sun May 29 2022 High pressure today will bring fair weather, albeit with clusters of clouds passing from time to time.
403 AM CDT Sun May 29 2022 A quiet early summer weather pattern will over the next several days, under an upper level ridge of high pressure.
/DL/ Prior discussion below: Today through tonight: The weather pattern in the near term will be rather non-descript with weak upper level ridging centered to the west and east of the forecast area.
320 AM PDT Sun May 29 2022 Cooler than normal conditions will continue across Central California through the remainder of the Memorial Day weekend.
A couple of CAMs indicating potential for a secondary line of scattered cells developing from northeast Nebraska into southwest Minnesota during the late evening into the overnight, as the low level jet restrengthens into the residual boundary, but confidence in this development is lower. Monday looks a bit messier as we do have broad forcing from the upper trough lifting northeast toward the Dakotas. Exact timing of development may depend highly on timing of stronger waves rotating around the upper low, as still a fairly stout cap in place through at least early afternoon, so still some uncertainty there regarding timing of initiation.
A low pressure trough currently extends across central South Dakota and will gradually shift east through the afternoon. Southerly flow and moisture return out ahead of this trough will be the focus of an area of instability marked by ML CAPE values of 1000-2500 J/KG. A closed upper level low will quickly develop out of the Rockies and track across the northern plains. This will all make a rapid progression northeast and the result will be enhanced (breezy) westerly low level flow bringing in drier and cooler air.
Highs will reach the low to mid 80s, but we'll have to contend with gusts to 35 mph and some pesky mid to high lvl clouds in the WAA regime. Memorial Day will repeat the windy conditions with warmer highs in the upper 80s, and less cloud cover as high pressure over the eastern US retrogrades slightly into the Upper Great Lakes.
/Issued 345 AM EDT Sun May 29 2022/ Another nice day expected as the region remains under high pressure at both the surface and aloft. Picking up the extended on Monday night, area remains under a broad upper ridging with some low end Chance to Slight Chane PoPs dying off after sunset in SE GA.
1059 AM EDT Sun May 29 2022 High pressure will strengthen across the southern Mid Atlantic through Memorial Day. A subtropical ridge will be centered over central NC today and tonight, strengthening from 585 dam this morning to 588 dam by early Monday morning. A strong capping inversion from this ridge will result in another mainly dry day with just some fair weather cumulus in the afternoon.
1021 AM EDT Sun May 29 2022 High pressure will dominate over the Mid-Atlantic region through Memorial Day, sliding just offshore through the middle of the workweek.
/issued 403 AM CDT Sun May 29 2022/ A quiet early summer weather pattern will over the next several days, under an upper level ridge of high pressure.
1015 AM EDT Sun May 29 2022 High pressure will guarantee FANTASTIC weather across the region today.
1005 AM EDT Sun May 29 2022 High pressure has moved into the North Country today and will persist through Memorial Day. The dry weather will continue for Memorial Day with even warmer temperatures. No precipitation is expected tonight and Monday as an upper level ridge begins to amplify a bit up into our region. As a result any precipitation coming over the top of the ridge would stay to our north and east and thus have kept the forecast dry for Monday, where data the past couple of days had suggested the potential for a shower or two in the northwest flow aloft. With the upper ridge over the area and more sunshine, high temperatures will be even warmer than today with highs in the upper 70s to mid 80s.
(Rest of Today) Latest model guidance suggests that the TN Valley will remain within a region of weak steering currents today, between a 500-mb high centered across eastern portions of NC/SC and a weak upper low over the north-central Gulf of Mexico. This should translate to sensible weather conditions comparable to yesterday, although mostly sunny-partly cloudy skies and a diurnal increase in south- southeasterly winds will promote slightly warmer afternoon temperatures today.