Aikyam-Lab/Synoptic-Bench huggingface dataset:
1243 PM CDT Wed May 29 2024 (Rest of Today) A cold front can be seen in observations extending from the Ohio Valley southwest through the Nashville, TN area and into SW TN. This may allow portions of NW Alabama to remain warmer this afternoon (highs in the 80 to 85 degree range). Further east, highs will likely be a bit cooler with stronger cold air advection occurring behind the front in those locations.
(Thursday through Wednesday) PoPs to expand Thursday, with the highest PoPs across SE OK as the storm complex tracks towards the the Red River from the morning into the afternoon hours.
1205 PM CDT Wed May 29 2024 A dry cold front continues to slowly slide south through west Tennessee and eastern Arkansas at this hour. Low level cloud cover is non-existent, so temperatures should continue to climb into the low to mid 80s areawide through late afternoon. AC3 Following areas of early morning patchy fog, temperatures are forecast to warm into the low to upper 80s today.
237 PM EDT Wed May 29 2024 Dry high pressure will build into the region this week keeping skies mostly sunny and temperatures cooler than days past.
This is due in part to a weak upper trough moving over the area.
925 PM EDT Wed May 29 2024 A weak cold front will move through the area tonight, bringing a reinforcing shot of cooler/drier air to the area for the rest of the week.
WEATHER PATTERN OVERVIEW: Cold front this evening will push any lingering severe storms into North Dakota and Saskatchewan. Thursday into Thursday night: Center of the entering trough will move across the area and rain showers and isolated thunderstorms will linger through these periods.
(Now through Thursday) A broad upper trough remains over the eastern CONUS, with an amplified ridge over the Plains and another trough over the Pacific NW. Low temperatures tonight should range from the mid to upper 60s across interior counties and in the low to mid 70s closer to and along the coast. The heat continues on Thursday with near normal to slightly above normal temperatures expected, as highs will range from the lower 80s up along the Highway 84 corridor (which will be behind reinforcing front), to the upper 80s and lower 90s southward down to near the I- 10 corridor. A little cooler again down along the beaches (mid to upper 90s), where moderation from the onshore flow will be most effective.
12 Previous short-term discussion: (This evening through Thursday) High pressure will be over the southeast through tomorrow.
1002 PM EDT Wed May 29 2024 High pressure will build in from the west mid to late week, passing overhead and then offshore over the weekend. Late this evening, a sfc cold front was analyzed over the Midlands of SC, sliding towards the coast. A pseudo Omega blocking pattern will be in place across NOAM to start the short term period with ridging from the southern Plains into the Upper Midwest/western Great Lakes anchored by troughs across western Canada/northwest U.
657 PM EDT Wed May 29 2024 Upper level low departs tonight and Thursday.
609 PM CDT Wed May 29 2024 (Tonight through Thursday night) Key Messages: - A major risk of heat related impacts on Thursday - Low to medium chance of showers and thunderstorms late tonight and Thursday High pressure remains in control over South Texas through Thursday; however, a ripple in the flow will move just to the north of our area. The temperatures will be a few degrees warmer for Thursday, with highs in the 90s along the coast and into the low 100s over the Brush Country.
Current forecast is on track with clearing skies tonight, followed by sunny, cool, and less windy weather Thursday as today's upper trough exits east.
953 PM EDT Wed May 29 2024 Upper level low departs tonight and Thursday.
606 PM CDT Wed May 29 2024 (Tonight) A cold front is currently moving southeast into northern Alabama. Northerly winds should drop off later this evening and become fairly light, except in the higher elevations. Thus, kept lows in the lower 50s in those shelter valley locations east of the I-65 corridor.
741 PM EDT Wed May 29 2024 Dry high pressure will build into the region this week keeping skies mostly sunny and temperatures cooler than days past.
703 PM EDT Wed May 29 2024 High pressure will build in from the west mid to late week, passing overhead and then offshore over the weekend. Early this evening, a sfc cold front was analyzed over the Upstate of SC, sliding towards the coast. Therefore, we went with the low end of guidance. A pseudo Omega blocking pattern will be in place across NOAM to start the short term period with ridging from the southern Plains into the Upper Midwest/western Great Lakes anchored by troughs across western Canada/northwest U.
A ridge in the Northeast Pacific will continue to build into the region through the end of the week.
Expect highs to generally be seasonable across the area, with most lower elevations seeing highs gradually warm from near 60 on Thursday to the low to mid 70s for the weekend. /ISSUED 600 PM MDT Wed May 29 2024/ Key Points: -A few thunderstorms are expected across Southwestern Montana this afternoon and early evening, some of which may bring gusty winds and a heavy downpour -Cooler and drier through the weekend Short Term (through Thursday). A cold front continues to push through Southwestern Montana this afternoon, which has been the focal point for showers and even a few strong thunderstorms this afternoon that have brought some localized accumulating hail. Further north across the Plains, cooler and drier air have continued to work into the area, which has resulted in most areas seeing highs some 15-20 degrees cooler than they were yesterday.
Warmer than normal temperatures and dry weather are on tap for the region through the end of the week. Winds will pick up this weekend as a trough digs along the West Coast and moves through the area.
While there doesn't seem to be much of a capping inversion, the lower levels of the sounding look drier and almost worked over. High pressure currently over south- central Canada will emerge off the Mid- Atlantic coast by the end of the work week.
603 PM EDT Wed May 29 2024 A cooler and drier air mass will gradually build into the region through the end of the week, with high pressure moving across the region at the start of the weekend.
643 PM CDT Wed May 29 2024 - Quiet weather is forecast through Thursday with high temperatures in the lower to mid 70s.
922 PM EDT Wed May 29 2024 A cooler and drier air mass will gradually build into the region through the end of the week, with high pressure moving across the region at the start of the weekend.
636 PM CDT Wed May 29 2024 - Frost is expected tonight in the Arrowhead, North Shore high terrain ridge, and across much of northwest Wisconsin and all of north-central Wisconsin late tonight into early Thursday. Prime radiational cooling with lingering dewpoints in the low-30s could create some frost in the Arrowhead late tonight lasting into early Thursday morning.
(Tonight) Tranquil conditions across the Tennessee Valley this evening with high pressure to the north and east still the primary influence of the weather across the region.
Drier air is in place and with mainly clear skies tonight it will be on the chilly side with lows falling into the low to mid 50s with maybe even some upper 40s on the Plateau.
High pressure will build in behind the system and allow more sun to shine on Friday. With the clouds across the area and rain across the south and west, temperatures today will be in the low to mid 80s. This may be one of those days in which the high is around 6 PM as the sun begins to peak out across the south. Fair skies tonight as the high pressure builds.
Further upstream was an upper trough from British Columbia into the Great Basin. Surface obs showed high pressure over the middle MO river valley weakening with southerly return flow increasing through the southern plains and central high plains. Late this afternoon, an isolated thunderstorms may develop within an instability axis associated with the low level moisture return. Have POPs increasing from west to east through the day for any convection that forms along the high plains tonight and propagates east.
While temperatures will be slightly warmer, the winds will be calmer and the air mass will be drier. Due to the lower dewpoints and calmer winds, temps will have an easier time to drop down into the upper 30s. As any frost that does form will be in the low lying areas and fairly isolated, do not foresee any headline issuance. Dry air continues to move into the region as a positively tilted trough exits into the mid Atlantic. An upper level ridge continues to build over Lower Michigan with high pressure dominating the pattern through Friday.
Low temperatures are forecast to range from the low-40s to upper-50s across the majority of northern Arizona's High Country. A pattern of broad high pressure remains in place despite the efforts of a trough well to our north. This trough is limiting the amplitude of the upper-level ridge and is tightening pressure gradients just enough to increase west to southwest winds today. Once the trough has progressed eastward tomorrow, a return of zonal flow is expected. Models show synoptic competition returning between a weak ridge with its axis near to just east of Arizona and a weak trough to our west.
Early this morning, mid-level water vapor imagery shows a weakening complex of storms across the high plains of Nebraska, Kansas, Oklahoma and Texas.
1022 PM CDT Wed May 29 2024 - Dry conditions, cooler temperatures, and lower relative humidity continue into Friday. High pressure settled across the region is bringing tranquil weather conditions today. High pressure builds further across the Ohio Valley keeping dry weather conditions in place through the rest of this week.
No doubt, the high sun angle, drier air just off the deck, and soil conditions are all playing into this. Boating conditions will deteriorate slightly into this weekend, as high pressure building into the western Atlantic increases onshore winds to around 15 kts or even 15-20 kts at times.
500 AM EDT Thu May 30 2024 Weak low pressure over southeast New England will move slowly away from the area today, with a weak low pressure trough remaining in its wake through this evening.
A few showers remain this morning as a broad trough exits into southern Saskatchewan.
116 AM MDT Thu May 30 2024 Current radar is showing weakening showers associated with a cold front making their way into SE MT this morning, expected to exit the state around sunrise. Conditions today will be cooler and breezy following the front with temperatures in the 60s expected across the region. Additional trailing energy from the low will continue to make its way through MT through Friday night. Highs Friday will be warmer with temperatures in the 60s and low 70s.
As the southern stream proceeds to produce an upper level cut-off the low the entire pattern slows.
Dry and cooler conditions are expected today with temperatures in the low to mid 80s.
Temperatures will be a degree or so warmer today and Friday, with highs in the mid 80s to near 101. Overnight lows will range from the mid 70s to the low 80s areawide.
At the same time, southerly flow aloft in the low levels will help keep moist and unstable air flowing into the Gulf Coast and Southern Plains, as the sfc boundary continues to shift further south towards the Florida Panhandle. Recent model consensus continue to show two upper-level low pressure systems shifting east out of the Great Plains and towards the Great Lakes Region around this timeframe.
High pressure will bring dry and cool conditions Thursday through Friday.
On Fri, building high pressure down the mid Atlc into the SE coastal states will produce a breezier NE wind flow and push a diffuse east coast sea breeze quickly inland with the collision occurring on the western half of the peninsula. High pressure ridge builds into the western Atlc and considerable dry air is forecast to move in from the east. Boating conditions will deteriorate slightly into this weekend, as high pressure builds south down the eastern seaboard then shifts off the Carolina coast.
253 AM EDT Thu May 30 2024 Dry high pressure to our north will keep temperatures a bit below normal through the end of the week.
(Today through Friday) A subtle upper troughing pattern will remain present across SE CONUS (including South Florida), with a few southern stream impulses drifting equatorward towards our region. The most noteworthy change compared to prior days will be a distinct change in the low-level flow regime, as east-northeasterly winds are expected to prevail across the CWFA. This will cause a subtle backing of flow near the surface, which may shift the highest storm coverage a further westward into portions of Collier County and the western interior region. Afternoon maximum temperatures through Friday generally remain in the upper 80s to low 90s, with the highest temperatures being realized across western portions of the region.
Model soundings highlight effective mixing with this warmer airmass, and we should be able to mix drier air aloft down the surface. Upper air pattern consists of a 500 mb trough over the northern plains with a ridge over the upper Great Lakes 00z Fri. In the extended, the GFS and ECMWF show a 500 mb trough in the northern Rockies 12z Sun which moves quickly into the upper Great Lakes 12z Mon. More troughing then moves into the northern Rockies 12z Tue which moves into the upper Great Lakes 12z Wed. This trough remains over the area into 12z Thu. Under high pressure, VFR will prevail at all TAF sites. High pressure slowly shifts southeast over the Great Lakes Basin into this weekend.
Anticyclonic flow around the high will promote winds with a northerly component across our region, though they will be quite light (<10mph) given a relaxed pressure gradient. Can't rule out some patchy fog in the typical fog-prone areas, but dry air in the low levels should keep it from becoming too widespread. Temperatures will reach the mid-upper 70s across the board, and possibly a few spots in the lower 80s.
Upper level ridging will keep the area quiet as high pressure is in place at the surface. Before this, high pressure will continue to bring in drier air from the east leading to another pleasant day across the area. Later in the period, high level clouds move into the area and help to keep lows tonight 3 to 6 degrees warmer than this morning.
Ongoing convection across the High Plains is expected to remain west of the forecast area until after daybreak Thursday. Upper ridge axis has finally shifted east of the Rockies and has emerged across the Great Plains today and that trend will slowly continue through the end of the work week.
111 AM EDT Thu May 30 2024 A cooler and drier air mass will gradually build into the region through the end of the week, with high pressure moving across the region at the start of the weekend.
However, some low stratus will be left on the ridges, esp in the west, through morning. Highs will again be cooler-than-average with fcst max temps in the low 60s/70s. Seasonably strong high pressure dome migrates eastward from the OH Valley Thursday night into western PA early Friday morning.
At the surface, broad ridging centered over the Great Lakes will spread east across the eastern US today and Friday and into the Atlantic during the weekend. Closer to home, a weak disturbance will cross the Florida Peninsula today to the south of the upper level trough, increasing moisture slightly and allowing a bit more rain coverage than yesterday, with the highest rain chances still generally expected over southwest Florida and the interior portions of central Florida. As the trough deepens on Friday, a weak cold front will slowly push south across the Florida Peninsula, allowing the deep moisture to advance farther north, with scattered showers and storms expected across most of the forecast area. High pressure will build back into the waters from the north today and Friday, then shift east into the Atlantic this weekend.
06Z upper level analysis depicts upper level trough across the northeastern US and northern Rockies with upper level ridge sandwiched in-between the two systems. The northern branch of the upper jet is expected to help guide the upper trough into the Upper Midwest into southern Canada over the next few days. The retreating ridge building into the Ohio Valley will result in southeasterly winds developing in the near surface layer ahead of the approaching trough. There are questions as to whether the cold front associated with the filling upper trough is able to make it far enough south this weekend.
pdf The weakening cold front is over south central Florida this afternoon and will remain fairly stationary through tonight or perhaps dissipate over South Florida as high pressure builds to the north of the region. Lows tonight will "cool" into the low to upper 60s to near 70 at the beaches and along the St. High temperatures will reach the upper 80s to mid 90s, however with lower dewpoints, heat indices will max out in the lower to mid 90s. Similar high temperatures to Thursday expected Friday, with slightly cooler coastal temps due to the afternoon sea breeze.
The upper ridge is still centered over MX / the Pacific where it will remain over the course of the period.
An upper level ridge will continue to build through Friday. Temperatures will steadily climb from the 60s and low 70s today to the mid to upper 70s on Friday, though cooler conditions can be expected along the lake shore.
1249 AM CDT Thu May 30 2024 - Quiet weather is forecast through Thursday with high temperatures in the lower to mid 70s. Broad high pressure stretching from the upper Great Lakes into the mid-Mississippi River Valley was providing a beautiful, quiet afternoon to all of eastern Iowa, northwest Illinois and northeast Missouri. This high will slowly move east over the next 24-36 hours, and will continue to influence our weather during the short term period. Temperatures will vary depending on cloud cover, with cooler values near 50 in far northwest Illinois and values near 60 in east central Iowa and northeast Missouri.
Drier air is in place and with mainly clear skies tonight it will be on the chilly side with lows falling into the low to mid 50s with maybe even some upper 40s on the Plateau. Friday looks to be a bit warmer as a weak upper ridge builds northward from the Gulf Coast, with highs reaching the mid 70s to mid 80s.
These storms could be initially strong to marginally severe (damaging winds being the main threat), but should diminish quickly as they move east of the low level jet. Instability and moisture are more ample through this region, but the low level jet appears weaker.
This is leading to a fairly chilly morning for late May, with most locations dipping into the 50's and some of the higher elevations dropping into the 40's.
418 AM EDT Thu May 30 2024 (Today through Friday) High pressure continues over the region with dry conditions expected to continue. High pressure pushes a bit further into the area Friday clearing things out for North and Central GA.
Overnight temperatures are forecast to drop into the low-to-mid 50's but can't rule out a few spots (cooler wind sheltered areas) dipping into the upper 40's. Meaning those warmer interior areas get a good break between these warm days.
High pressure stretching from Hudson Bay through the Great Lakes to the Southeast will bring us dry weather and light winds tonight and tomorrow. Lows at the climate sites should be about 15 degrees warmer than the records for May 30.
141 AM EDT Thu May 30 2024 Upper level low departs tonight and Thursday.
357 AM EDT Thu May 30 2024 High pressure of Canadian origin will bring dry and cool conditions today through Friday.
204 AM EDT Thu May 30 2024 A weak cold front will move through the area tonight, bringing a reinforcing shot of cooler/drier air to the area for the rest of the week.
153 AM EDT Thu May 30 2024 Dry high pressure will build into the region this week keeping skies mostly sunny and temperatures cooler than days past.
(Today) Clusters of showers/thunderstorms continue this morning well west of the area across the high Plains.
Warmer than normal temperatures and dry weather are on tap for the region through the end of the week. Winds will pick up this weekend as a trough digs along the West Coast and moves through the area. Surface obs showed very warm temperatures, which were a couple of degrees warmer on average than 24 hours ago. High temperatures today should be similar or slightly warmer than yesterday, with a few more degrees of warming on Friday.
101 AM EDT Thu May 30 2024 Upper level low departs tonight and Thursday.
Isolated to scattered showers and isolated thunderstorms will diminish through this evening as an upper-level trough exits to the east and an offshore upper-level ridge influences the region's weather. A brief switch to light offshore winds is forecast Friday as the upper-level ridge axis moves overhead.
1054 PM CDT Wed May 29 2024 (Tonight) Tranquil conditions across the Tennessee Valley this evening with high pressure to the north and east still the primary influence of the weather across the region.
After some cooler conditions tonight through Friday morning, a steady warming trend will begin. Mid/high clouds continue to spread northward into our region early this morning as low pressure moves across southern New England. Though it may be a degree or two warmer.
Today and Friday The area will remain on the western edge of an upper-level trough that swept through the region yesterday. Ridging will slowly begin to build over the region on Friday and temperatures will trend upwards accordingly.
637 AM EDT Thu May 30 2024 High pressure of Canadian origin will bring dry and cool conditions today through Friday.
CAMs are hinting at isolated showers along the higher terrain today and slightly more for tomorrow. Going into the weekend, another trough will pass us by to the north. Following the trough this weekend, ridging returns for at least the first half of next work week.
520 AM EDT Thu May 30 2024 Cold front pushes to the coast tonight. Dry and cooler high pressure will build in for Thursday and Friday with below normal temperatures. Troughing over the east remains in place today with northwest flow persisting. 850mb jet modeled around 30 to 35kts and this will be enough to remain well-mixed overnight, especially over the ridges. Trough amplifies today and shifts east into the Atlantic late tonight. Will have strong Canadian high pressure build in behind the trough bringing clear and calm skies tonight. A broad upper low anchored across eastern Canada will continue to dominate the weather conditions within the RNK CWA throughout the forecast period.
(Today through Friday) High pressure continues over the region with dry conditions expected to continue. High pressure pushes a bit further into the area Friday clearing things out for North and Central GA.
Southwesterly flow will return aloft with an approaching weak trough axis below the main trough axis across the Upper Rockies. Temperatures will also warm into the mid 80s to mid 90s with the warmer temperatures along the higher terrain.
High pressure has settled over the Great Lakes and sunny skies and highs around 70 are expected. -Mild and cooler continues The only major weather concern through Friday will be the chance for patchy frost early Friday morning. While temperatures will be slightly warmer, the winds will be calmer and the air mass will be drier. Due to the lower dewpoints and calmer winds, temps will have an easier time to drop down into the upper 30s. As any frost that does form will be in the low lying areas and fairly isolated, do not foresee any headline issuance. Dry air continues to move into the region as a positively tilted trough exits into the mid Atlantic. An upper level ridge continues to build over Lower Michigan with high pressure dominating the pattern through Friday.
High pressure layered across much of the eastern CONUS will help to maintain quiet/near seasonal countdowns thru the afternoon hrs, as highs climb mainly into the lower 80s/near 80F, under mostly sunny skies.