Aikyam-Lab/Synoptic-Bench huggingface dataset:
626 PM CDT Wed Jul 24 2019 Unseasonably cool conditions prevailing over the region this afternoon as high pressure remains entrenched right over the lower Missouri Valley. This will result in another cool overnight period with lows early Thursday morning expected to fall into the lower to middle 60s region wide.
945 PM EDT Wed Jul 24 2019 It will remain a little cooler than normal today with rather comfortable humidity. Warmer and more muggy air will be returning later in the week and for the weekend as the high pressure moves off the east coast.
605 PM CDT Wed Jul 24 2019 Broad ridge centered over the Intermountain West and Rockies continues to break down as a cut off low tracks east across southwestern Canada tonight.
Concur with the deterministic ECMWF/GFS/NAM that the upper anticyclone will remain quasi-stationary and centered near the Four Corners region during the period and maintain relatively dry and weakly subsident conditions over the CWA. The GFS/NAM predict the upper trough/low and corresponding surface reflection over the NCNTRL/NWRN Gulf of Mexico to move slowly westward during the period.
This is right on track with the expected increase as monsoonal moisture moves into the region from the southwest with the high pressure system now positioning itself over northwest New Mexico. Thunderstorms have developed over all the peaks and ridges and still remain anchored, pulsing up and down in intensity with some brief heavy rain being reported out of the stronger cells. Another afternoon of showers and thunderstorms are expected Thursday, with most activity being anchored to the high terrain with some drift into valleys late in the day.
A weak area of low pressure may develop along the frontal boundary over the northeast Gulf on Thursday which could enhance rainfall mainly impacting the nature coast.
Sfc observations show temperatures in the mid to upper 70s at this hour, with dewpoints in the lower to mid 60s, which is where the temperatures expected to be by daybreak Thursday. /issued 403 PM CDT Wed Jul 24 2019/ Short Term [Today and Thursday] This afternoon's surface analysis indicates an anomalous 1020 hPa anticyclone centered over the Mississippi River Valley. This anticyclone is expected to remain over the region for the through Thursday resulting in dry conditions and temperatures that are well below normal. This will result in overnight temperatures in the low to mid 60s which are near record daily low temperatures.
/issued 403 PM CDT Wed Jul 24 2019/ Short Term [Today and Thursday] This afternoon's surface analysis indicates an anomalous 1020 hPa anticyclone centered over the Mississippi River Valley. This anticyclone is expected to remain over the region for the through Thursday resulting in dry conditions and temperatures that are well below normal. This will result in overnight temperatures in the low to mid 60s which are near record daily low temperatures.
620 PM EDT Wed Jul 24 2019 Except for isolated afternoon thunderstorms, high pressure will control our weather through the weekend.
Upper ridging will continue into Thu which will finally cap the atmosphere over the region. Southwest winds will increase somewhat on Thursday as the high shifts east.
/issued 208 PM CDT Wed Jul 24 2019/ An upper ridge is centered over the southwest part of the country with an upper trough over the eastern conus. Temperatures today will be similar to yesterday, except maybe a degree or two warmer.
946 PM EDT Wed Jul 24 2019 Surface ridging and dry air will produce an unseasonably cool night tonight. Chattanooga Airport, TN 62 87 64 87 / 0 0 0 0 Knoxville McGhee Tyson Airport, TN 58 84 62 85 / 0 0 0 0 Oak Ridge, TN 59 85 63 86 / 0 0 0 0 Tri Cities Airport, TN 52 83 59 83 / 0 0 0 0.
Deep southwesterly flow will exist across central Florida with the Atlantic ridge axis well to the south. Max temps may be held down the mid- upper 80s NW of I-4 where more clouds/precip are expected earlier in the day, with warmest temps once again along the coast especially south of Sebastian Inlet in the low 90s.
Weak high pressure will allow a warming trend to continue through the end of the week.
1033 PM EDT Wed Jul 24 2019 A cold front will slide well offshore tonight. A weak cold front will approach from the north on Thursday then wash out north of the border Thursday night.
High pressure will linger over the Ohio and Tennessee Valleys tonight, keeping a light northerly flow across the region. Dewpoints currently in the upper 50s to lower 60s support lows falling into the lower 60s by daybreak on Thursday.
Augustine to Gainesville due to keeping the cold front across this area. There is a possibility that the surface boundary lifts further northward towards I-10, especially if the area of low pressure over the northeastern Gulf ends up a little deeper, similar to the GFS solution. An area of low pressure is forecast to move along the frontal boundary on Thursday, and showers and storms are expected once again across northeast Florida, especially towards KGNV and KSGJ.
313 PM PDT Wed Jul 24 2019 Hot temperatures this week with widespread triple digit temperatures at the lower elevations. Hot temperatures are in store through the rest of the week and weekend for interior NorCal as high pressure continues to build in the West. Temperatures this afternoon are a few degrees warmer than yesterday, and will peak in the upper 90s to low 100s across the Valley and foothills.
635 PM EDT Wed Jul 24 2019 A cold front will slide well offshore tonight. A weak cold front will approach from the north on Thursday then wash out north of the border Thursday night.
516 PM MDT Wed Jul 24 2019 Current surface map places trof across northeast Wyoming, with cold front moving into central Montana. Environment becomes more favorable as upper ridge shifts eastward over the next few hours and weak impulse crosses the area later this evening. Cold front will reach northeast Wyoming/northwest South Dakota 04z-06z and slowly move through the remainder of the area overnight. A period of breezy northwest winds sill arrive behind the cold front.
614 PM CDT Wed Jul 24 2019 High pressure centered over northern Missouri will continue drifting eastward through Thursday night. The ridge axis will be directly over the forecast area late tonight and early Thursday morning. Dew point temperatures are rising a bit, and with the clear sky and light wind under the ridge there could be some patchy fog before sunrise. Most locations should reach the mid 80s Thursday afternoon after morning lows in the low 60s.
901 PM CDT Wed Jul 24 2019 Skies are clear and winds are light as high pressure ridge remains just to the west of the CWA. A bit warmer on Thursday with moistly sunny skies. Warming trend will continue through the rest of the week and into the weekend, as the high moves to the east and allows southerly winds to bring warmer air into the area, a few degrees increasing each day.
403 PM CDT Wed Jul 24 2019 Short Term [Today and Thursday] This afternoon's surface analysis indicates an anomalous 1020 hPa anticyclone centered over the Mississippi River Valley. This anticyclone is expected to remain over the region for the through Thursday resulting in dry conditions and temperatures that are well below normal. This will result in overnight temperatures in the low to mid 60s which are near record daily low temperatures.
Activity is strongest along the leading edge of this outflow boundaries that extends from about 10 miles south of the Upper Keys southwestward beyond 40 miles south of the Lower Keys.
730 PM EDT Wed Jul 24 2019 High pressure will move in from the west over the next several days.
Warming temperatures expected through the weekend as an upper level ridge moves over the Lakes Region. Another upper level trough and associated positive vorticity maximum will move south during the morning hours supporting the convection. Upper level trough axis will shift east into PA this evening. A weak upper level trough axis will move into the area midday and into the afternoon Thursday. Temperatures will be a bit warmer Thursday and a bit more mild Thursday night as weak WAA starts. High temps in the afternoon will warm into the lower to mid 80s.
/Updated at 0240 PM CDT Wed Jul 24 2019/ Surface ridging now dominates the weather across the Southeast following yesterday's frontal passage. With clear skies and light/calm winds tonight, temperatures will fall into the low 60s for most, with a few upper 50s possible in the climatologically cooler locations in the north.
655 PM CDT Wed Jul 24 2019 An amplified upper level ridge remains in place across the Rocky Mountain States with an upper level trough across the Ohio Valley. an area of high pressure was drifting into the Mid-Mississippi Valley at mid afternoon. Highs on Thursday will be a degree or two warmer than Wednesday. A negatively tilted upper level trough is currently moving onshore in the Pacific Northwest and will flatten out the western ridge as it moves across southern Canada. the Gulf will once again open up and begin to allow a warmer and more humid air mass to begin moving northward.
553 PM EDT Wed Jul 24 2019 It will remain a little cooler than normal today with rather comfortable humidity. Warmer and more muggy air will be returning later in the week and for the weekend as the high pressure moves off the east coast.
Surface ridging will produce generally light winds, 7kts or less.
High pressure centered over central Missouri will move slowly across the region tonight. With clear skies and light winds associated with the high, going lows still look good. Britt High pressure centered over northern Missouri will continue drifting eastward through Thursday night. The ridge axis will be directly over the forecast area late tonight and early Thursday morning. Dew point temperatures are rising a bit, and with the clear sky and light wind under the ridge there could be some patchy fog before sunrise. Most locations should reach the mid 80s Thursday afternoon after morning lows in the low 60s.
752 PM EDT Wed Jul 24 2019 Except for isolated afternoon thunderstorms, high pressure will control our weather through the weekend.
859 PM EDT Wed Jul 24 2019 It will remain a little cooler than normal today with rather comfortable humidity. Warmer and more muggy air will be returning later in the week and for the weekend as the high pressure moves off the east coast.
940 PM CDT Wed Jul 24 2019 Cool high pressure now situated across southern Great Lakes and Ohio Valley continued to bring cooler than normal conditions southward to the Gulf coast. High temperatures across the Tennessee Valley today only rose into the low/mid 80s.
524 PM MDT Wed Jul 24 2019 Upper ridge axis extends from the Four Corners to the Northern High Plains.
1130 PM CDT Wed Jul 24 2019 Well amplified upper ridge was situated from south-central Canada to the southwestern CONUS. A large high pressure dome then will encompass the majority of the CONUS.
/19/ The trend for unseasonably cool low temperatures due to the recent cold front continues tonight. Clear skies will prevail as we make our way through the night with low temperatures in the low to mid 60s. Overall, high pressure will continue to dominate through at least Thursday. Northeasterly flow helps to bring some cooler air into the region, especially for the east.
High temperatures should edge slightly warmer as 850MB temperatures rise a degree or two.
However, the weak synoptic flow in the low levels will be less than 10 knots today allowing for the east coast sea breeze to push further into the metro areas than yesterday.
This is thanks to a dome of high pressure across Eastern Conus centered over Missouri through Ohio. This ridge center will expand eastward today toward New York and Maryland. Below normal lows continue into tonight, but they should be a touch higher than this morning in response to a slight shift in the ridge.
Cool high pressure now situated across southern Great Lakes and Ohio Valley continued to bring cooler than normal conditions southward to the Gulf coast. High temperatures across the Tennessee Valley today only rose into the low/mid 80s. High pressure will remain over the area through the day on Thursday, before shifting into the New England States early Friday morning. Meanwhile, an upper level trough will remain over the eastern CONUS through the short term period. The true moisture fetch will hold off until the weekend, but we will start to see dewpoints climbing into the lower to mid 60s.
Today is forecast to be slightly warmer than yesterday. Highs will be in the low to mid 80s. Despite this, high pressure at the surface will remain in control of our weather pattern.
150 AM EDT Thu Jul 25 2019 Except for isolated afternoon thunderstorms, high pressure will control our weather through the weekend. Temperatures will rise on Friday as a ridge builds into the eastern U. Temperatures will fall into the lower-50s with a few readings in the upper-40s possible over our eastern forecast area. A pleasant day is forecast Thursday as high pressure remains in control of our weather. High pressure will be in control through this period, with mostly sunny skies and seasonably warm temperatures (highs in the lower to mid 80s).
Tonight through Thursday High pressure centered near the Four Corners Region is continuing to bring mostly clear skies throughout the day into the evening hours. After high temperatures today in the upper 80s to lower 90s, good radiational cooling will allow temperatures to drop back into the lower 60s, another pleasant overnight for late July. Going into the day tomorrow, a perturbation on the edge of the upper level ridge will work its way east across the CO/NM border into the afternoon hours that will help to generate some thunderstorms. High temperatures tomorrow with persistent southerly winds will be in the low to mid 90s for all locations.
The combination of light southerly winds and gradual air mass modification will produce high temperatures which are a few degrees warmer than yesterday. The expected highs in the low/mid 80s are still near or slightly below normal for this time of year across most of the area. The resulting southwesterly winds between these features will continue to bring a warmer and more humid air mass back into the region.
The mid/upper level trough will continue to move across the eastern U.
On Friday afternoon, high pressure ridging promoted by the Bermuda High will begin to push the old boundary back to the north into south and central Georgia.
338 AM CDT Thu Jul 25 2019 Region dominated by high pressure ridge over Central IL this morning. with the ridge axis elongated a bit on a NE/SW orientation. At 500 mb across the CONUS, a trough in the east and a ridge in the west persist. Going into tonight, the ridge axis slips to the east and the winds start to come around to more southerly, but the NBM may be a smidgen too warm as it has been of late. Return flow on the back side of the ridge axis brings a more southerly wind at the surface. Moisture from the Gulf States, and heat from under the SWrn thermal ridge advect into the region.
Convection initiated along the high plains last evening and this activity was edging east from western Neb during the pre-dawn hours, with lift enhanced by a 40kt low level jet. The light precip has weakened early this morning, however still expect to see some convection around today in presence of mid level warm air advection and dynamics associated with the progressing mid level wave trough. Limited moisture will keep rain amounts light, with the low precip chances focused in south central Neb based on the track of the system.
Temperatures will be warmer than previous days with highs in the mid 80s to lower 90s.
1125 PM EDT Wed Jul 24 2019 It will remain a little cooler than normal today with rather comfortable humidity. Warmer and more muggy air will be returning later in the week and for the weekend as the high pressure moves off the east coast.
/issued 911 PM CDT Wed Jul 24 2019/ High pressure remains over the Mid-South this evening.
221 AM CDT Thu Jul 25 2019 The area of high pressure that brought the string of cooler and drier conditions will slowly shift east into the Ohio Valley today and the Mid Atlantic states by the weekend. At the same time, the highly amplified upper level pattern, with a western ridge and eastern trough, will flatten some through late week. This will allow for the influence of the upper level high to expand eastward and result in a slow moderation in temperatures through late week.
359 AM CDT Thu Jul 25 2019 The cold front that passed a few days ago swept the low level moisture into the Gulf of Mexico.
Will continue to monitor the latest radar trends, and make small updates as needed to the low end pops. Another impact from the cold front will the on fire weather. A large upper level high pressure area over the southwest U. Our region will continue to be affected by westerly flow aloft on the northern edge of the upper high with a couple short wave troughs moving through bringing chances of showers and storms with them.
Elsewhere, locations across the higher terrain will see another day in the 80s, with warmer temperatures around 100 degrees reserved for the Rio Grande Valley. Aloft, northerly flow will continue as the upper ridge remains anchored near the Four Corners Region the next few days, with a trough in place over the eastern CONUS.
A mid and upper level ridge will generally remain centered over the southwestern United States through this weekend.
An upper level ridge will remain over the western US, and a northerly flow aloft will continue. This will keep Arkansas in the cooler and drier air tonight and tomorrow, but as the high shifts eastward, a southerly flow will start to develop.
A weak ridge of high pressure will continue to build into the area over the next several days. An upper level low pressure system will approach BC over the weekend, and bring increased cloudiness, a chance of showers and temperatures cooling back to near normal.
1126 PM CDT Wed Jul 24 2019 Skies are clear and winds are light as high pressure ridge remains just to the west of the CWA. A bit warmer on Thursday with moistly sunny skies. Warming trend will continue through the rest of the week and into the weekend, as the high moves to the east and allows southerly winds to bring warmer air into the area, a few degrees increasing each day.
353 AM CDT Thu Jul 25 2019 The 500mb high pressure continues to reside over the border of New Mexico and Arizona giving the Panhandles north northwesterly flow aloft. Thursday the high will take a shift southeast putting the more northwesterly flow over our area and a chance for storms.
That setup should support at least a smattering of showers and perhaps a few thunderstorms developing eastward, though with the stronger instability relegated well to the north in the vicinity of a cold front sliding across northern MN.
The east side of an upper high will continue to keep mostly dry northerly flow ongoing above the surface through Thursday evening. At the surface, a ridging will continue to occur from the E/NE and keep winds from the east, possibly east-southeast at 5-7 knots. /Issued 316 PM CDT Wed Jul 24 2019/ Tranquil weather is anticipated across North and Central Texas through the end of the work week as mid-level high pressure remains anchored across the Four Corners region.
Afternoon dewpoints mixed out and helped get the low humidity.
136 AM EDT Thu Jul 25 2019 High pressure will move in from the west over the next several days. High pressure moving from the Midwest into the Middle Atlantic States will direct a dry northerly flow into the forecast area. Deeper moisture will remain well east of the area ahead of upper troughing. Modified Canadian high pressure will provide The Midlands and CSRA with dry weather and below normal temperatures/humidity levels during this time period. Weak high pressure aloft persists over the Southeast U. High pressure moving from the Midwest into the Middle Atlantic States will direct a dry northerly flow into the forecast area. Deeper moisture will remain well east of the area ahead of upper troughing.
1116 PM MDT Wed Jul 24 2019 Current surface map places trof across northeast Wyoming, with cold front moving into central Montana. Environment becomes more favorable as upper ridge shifts eastward over the next few hours and weak impulse crosses the area later this evening. Cold front will reach northeast Wyoming/northwest South Dakota 04z-06z and slowly move through the remainder of the area overnight. A period of breezy northwest winds sill arrive behind the cold front. Upper trof moves into the western Great Lakes on Friday with northwest flow over the northern plains.
Based on temperatures at 00z Friday at the top of the forecast mixed layer (around 800mb) the highs Thursday afternoon should be in the low to mid 90s.
340 AM EDT Thu Jul 25 2019 An area of high pressure will build into the central Appalachians today, and remain anchored over this region through the weekend.
/issued 247 PM CDT Wed Jul 24 2019/ (Tonight and Thursday) The center of the upper high will remain west of the area through Thursday, with dry and pleasant weather prevailing. Dry low levels coupled with light winds and clear skies will result in another cool night across the area, with overnight lows mainly in the lower 60s, although a few readings in the upper 50s will be possible once again. Temperatures will still be slightly below normal, with afternoon highs mainly in the lower 90s.
Temperatures responded by cooling into the low to middle 60s in most areas. Fair weather high pressure at the surface was over the nation's midsection.
302 AM CDT Thu Jul 25 2019 Thunderstorms have continued this morning as a cold front makes its way across the region.
1157 PM CDT Wed Jul 24 2019 Unseasonably cool conditions prevailing over the region this afternoon as high pressure remains entrenched right over the lower Missouri Valley. This will result in another cool overnight period with lows early Thursday morning expected to fall into the lower to middle 60s region wide.
238 AM MDT Thu Jul 25 2019 Synoptic Setup: To the south, hot high pressure has made it into southern Idaho and southern Montana from the Intermountain and Desert Southwest. This is forming a blocking pattern for progressive (west to east) flow. To the north The Gulf of Alaska through southern Canada remains an express lane for relatively cooler ridges and troughs. When a ridge moves by the warm air attempts to surge northward, when a trough moves by it is beat back south with outside chances for thunder drifting across northern zones.
314 AM CDT Thu Jul 25 2019 High pressure stretches from central Iowa into the Mid Atlantic states early this morning with some high clouds streaming southward across central and eastern Iowa.
Temperatures, particularly the overnight lows, will likely maintain some influences from continental drainage to remain on the cooler side of normal for another night or two before the continental air is fully flushed out over the weekend.
1134 PM CDT Wed Jul 24 2019 An amplified upper level ridge remains in place across the Rocky Mountain States with an upper level trough across the Ohio Valley. an area of high pressure was drifting into the Mid-Mississippi Valley at mid afternoon.
Though weaknesses will develop in the ridge the next few days, this dry air will make it difficult for storms to stream into our FA.
1011 PM MDT Wed Jul 24 2019 Upper ridge axis extends from the Four Corners to the Northern High Plains.
High pressure will dominate the areas weather with dry conditions tonight. Temperatures are expected to fall into the 50s with 40s in the higher elevations.
This is still seasonally normal, but a few degrees warmer than yesterday.
While temperatures this afternoon will be a couple of degrees warmer in most locations, mid 80s to around 90, overall less humid conditions will continue under sunny skies.
Temperatures will be a tad warmer today, with highs in the mid 80s stretching back north into the Tri Cities and southwest Virginia counties, and southern valley locales likely reaching into the mid and upper 80s. Quiet weather to start the period with returning precip chances toward the end of the period as a trough and front move through.