Aikyam-Lab/Synoptic-Bench huggingface dataset:
The upper level trough that has been digging into the western CONUS is still progged to split on Sunday, with a cut off low forming and retrograding over northern Mexico while the upper trough continues tracking eastward. This will allow for a cold front to push into the state and approach South Texas. As this upper level system and cold front approach the region more scattered showers and thunderstorms can be expected on Sunday. Temperatures will be slightly cooler with higher cloud cover and more rain across the region on Sunday.
209 AM EDT Sun Sep 25 2016 A cold front will drop south across the area tonight followed by high pressure from the north Sunday through Monday.
916 PM CDT SAT SEP 24 2016 An upper ridge of high pressure remains over the Mid-South this evening. Upper Weak high pressure will keep things dry tonight. A cold front is currently located from eastern South Dakota through central Kansas and into west Texas. Sunday will another hot day with highs in the low to mid 90s. By Sunday night, the cold front will be quickly moving into Arkansas and eventually will move through much of the forecast area. On Monday, the cold front will be moving out of the forecast area with scattered thunderstorms expected mainly during the morning hours. Cooler air will be moving into the region behind the front so highs on Monday will only be in the mid 70s to mid 80s.
A cold front will move through the northern terminals tomorrow afternoon shifting winds to the northeast. /issued 344 PM CDT SAT SEP 24 2016/ (Tonight through Monday) The current water vapor imagery indicating a amplified trough across the central and southern Rockies, with south-southwest flow over the Southern Plains. The GFS model indicate a strong upper level low developing over northwest Mexico through Sunday, and then retrograde slowly west by Sunday night. At the surface, a cold front will move south across West Central Texas Sunday afternoon and night. Also, temperatures will be much cooler by Monday with highs in the 60s to around 70.
(Issued 851 PM CDT Sat Sep 24 2016) A cdfnt extended across the midwest while a large upper ridge stretched from the Great Lakes thru the sern US. There was also an weak upper low over nrn FL. This upper low was bring sct clouds across portions of central and srn AL. For 06Z TAFs: A large upper ridge continues to be located across the region.
/Issued 653 PM CDT SAT SEP 24 2016/ For the 00Z TAFs, a strong cold front will track across the terminal sites late tonight with a brief period of MVFR cigs psbl at both KGUY and KAMA. Gusty north to northeast winds will develop behind the cold front, but should remain below AWW criteria at KAMA. Pacific cold front over eastern zones at this time expected to move slowly westward this evening before being overtaken by much stronger polar front.
1201 AM CDT Sun Sep 25 2016 A large swath of showers and thunderstorms has developed this afternoon stretching from TX into central KS and into the Dakotas ahead of a deep upper-level trough over the Intermountain West. Showers and a few storms will continue into Sunday morning until the main cold front swings through during the late morning and early afternoon hours. By Monday an extensive area of high pressure will build into most of the central U. Winds will be variable, eventually turning to the west southwest and then sharply to the northwest after a cold front passes through mid-Sunday-morning.
752 PM EDT Sat Sep 24 2016 High pressure over southeast Canada builds across the area through Sunday night. The high slides offshore on Monday.
522 PM MDT SAT SEP 24 2016 Upper low over the Rockies is elongating as previously advertised. Main low is moving into MT/Daks while 150 kt 250 mb jet over BC begins to dive down the back of the trough and will eventually carve out another low over northern Mexico by late tomorrow. A cold front is still on track to push rapidly through the forecast area starting around 9 pm in the far northwest counties and clearing the area by around 4 am in the southeast. Sunday looks to be cooler, breezy but mostly sunny. Northwest flow aloft continues into Sunday night and Monday morning as a trough moves eastward and out of the region.
On Monday an upper level low pressure will be progressing over the Great Lakes region resulting in northwest flow aloft. Return flow will develop in the wake of the high, but the gulf will remain cut off.
1008 PM EDT Sat Sep 24 2016 A cold front will drop south across the area tonight followed by high pressure from the north Sunday through Monday.
A cold front will stall out tonight across the forecast area, and eventually push east of the local area tomorrow morning. Already seeing some gusty northwesterly winds behind the passing cold front this evening at ODX.
133 AM EDT SUN SEP 25 2016 An upper-level ridge will continue to build east into the area through Sunday. A cold front will approach from the north Sunday and stall across the area Monday providing a focus for scattered showers and thunderstorms.
706 PM EDT Sat Sep 24 2016 A cold front will drop south across the area tonight followed by high pressure from the north Sunday through Monday.
653 PM CDT Sat Sep 24 2016 Surface and upper level low pressure will lift northeast across the forecast area tonight into Sunday morning. Cold front has made it through northwest ND and should move across the southwest this evening as the surface and upper low finally begin to lift northeast.
High pressure will build to the North then Northeast this weekend. A trough of low pressure will sink into the Southeastern U. An area of low pressure will develop in this trough and settle over the region toward the middle of the week. RIP CURRENTS: Long period swells from tropical cyclone Karl will continue a moderate risk for rip currents into Sunday.
933 PM EDT Sat Sep 24 2016 Another day of dry weather and seasonable temperatures are expected on Sunday before a cold front brings rain and scattered thunderstorms on Monday. Dry air is rapidly moving south of the Mason-Dixon line behind a cold front that cleared the area earlier in the day. As such, a few of the lower spots in Forest County as well as possibly Garrett County may manage to see some frost depending upon how much the wind backs off overnight. Fries Clouds will be on the increase Sunday night in advance of a cold front that will cross the region Monday afternoon.
The heaviest showers and thunderstorms will be most likely from early Sunday morning through Sunday afternoon, as the approaching cold front finally takes shape in the Central Plains and surges into the region. The highest rainfall amounts will affect parts of northeast Oklahoma, with notably lighter amounts across southeast Oklahoma and into western Arkansas. The latest data continue to show a progressive system, with the low in the southwestern United States expected to retrograde and have little effect on the area. Much cooler and drier air will move into the region behind the front.
Large upper low over Wyoming/Colorado will continue to move slowly east this afternoon into this evening before lifting northeast into the Northern Plains tonight into Sunday. Models still depicting a large piece of this low remaining behind, retrograding and closing off somewhere near the baja tomorrow. As the northern part of the upper low moves through the Northern Plains, a cold front will push south through Oklahoma into Texas during the day on Sunday. This will bring cooler and drier air into the area, which will limit the rain/thunder to Red River valley by Sunday night. Drier and cooler air will then overspread the area, resulting in a couple of pleasant and more fall-like days early in the week.
711 PM EDT SAT SEP 24 2016 Aviation Clouds and rain chances will increase Sunday with the approach of cold front.
158 AM MDT SUN SEP 25 2016 Upper level trough extends from the Northern Plains.
One more hot day, and then a cold front will bring much cooler air to the region for Monday. A south wind will return to most of the region Sunday, as the cold front approaches from the northwest. The cold front will be right on our doorstep at 00Z Monday, and will push through the entire region through the night. Most guidance develops a band of QPF behind the surface cold front, as elevated instability is released. High pressure will nose in over the area Monday night.
An upper level trough will continue to lift north and east of the Central Plains today. The cold front will switch winds from light and variable to north and northwest at 15 to 30 mph. Highs look to be in the low to mid 70s with clearing skies and north winds decreasing by mid to late afternoon. Tonight, then center of cold high pressure will settle into far western Kansas with clear skies and very light winds.
349 AM EDT Sun Sep 25 2016 Dry and mild conditions are expected under an upper level ridge today. Rain showers will likely accompany a strong cold front tonight into early Monday morning.
743 PM EDT Sat Sep 24 2016 An upper level ridge will provide dry conditions through Sunday. Lows tonight will fall into the lower 50s to around 60.
345 AM EDT Sun Sep 25 2016 Dry and mild conditions are expected under an upper level ridge today. Rain showers will likely accompany a strong cold front tonight into early Monday morning.
1045 PM EDT Sat Sep 24 2016 A large area of high pressure near James Bay Canada will drift south and become centered over the northeastern US Sunday. A cold front will push through the region late Monday and Monday night. Clouds increase Monday ahead of significant cold front headed our way.
1023 PM EDT Sat Sep 24 2016 High pressure over southeast Canada builds across the area through Sunday night. The high slides offshore on Monday.
/issued 916 PM CDT SAT SEP 24 2016/ An upper ridge of high pressure remains over the Mid-South this evening. Upper Weak high pressure will keep things dry tonight. A cold front is currently located from eastern South Dakota through central Kansas and into west Texas. Sunday will another hot day with highs in the low to mid 90s. By Sunday night, the cold front will be quickly moving into Arkansas and eventually will move through much of the forecast area. On Monday, the cold front will be moving out of the forecast area with scattered thunderstorms expected mainly during the morning hours. Cooler air will be moving into the region behind the front so highs on Monday will only be in the mid 70s to mid 80s.
349 AM EDT Sun Sep 25 2016 High pressure moving out of Canada will bring cooler temperatures and drier air to the region through tonight. Most towns in the area will see their first frost or freezing temperatures tonight.
458 AM PDT Tue Sep 6 2016 A fast moving frontal system will bring a chance for light rain to the lowlands today.
911 AM EDT TUE SEP 6 2016 A ridge of high pressure will remain over the region into tonight.
A cold frontal boundary has moved into the area just northwest of Dodge City and is stalling out. Overnight lows will be warm from the upper 60s west of Dodge to the low to mid 70s from Dodge and east. For Wednesday, an upper level trough will move into the Central Plains with a moderate upper jet and moist plume shifting east into central Kansas.
/issued 328 AM CDT TUE SEP 6 2016/ (Today and Tonight) An upper level ridge over the South Central United States will suppress most showers and thunderstorms development. Isolated showers and thunderstorms, however, will be possible over western and southern sections of West Central Texas, where the upper ridging is weakest. Otherwise the forecast today will be close to yesterday with highs/lows in the lower 90s/lower 70s. Lee trough will continue to bring gusty southeast to south winds of 10 to 20 mph.
East/northeast flow behind a weak frontal trough was bringing drier air into the area, except along the Treasure Coast where higher moisture lingered in the vicinity of the boundary. High pressure behind a weak frontal trough over the southern waters is forecast to nudge a little to the south.
1000 AM EDT TUE SEP 6 2016 A blocking ridge aloft will keep central Pennsylvania dry and unseasonably warm, with slowly increasing humidity as the week progresses. A cold front should pass through this weekend leading to a day or two of seasonable temperatures before another warm-up occurs.
726 AM EDT TUE SEP 6 2016 Aviation High pressure will move east with southwest winds bringing warm humid air into Lower Michigan.
A strong area of high pressure is in control of weather across the Tennessee Valley this morning. Model guidance forecast 850 mb temperatures climbing to 26 degrees Celsius, a bit warmer than yesterday.
A few showers over Ohio should diminish as they move into ridging across the region, though a few could make it into the ZZV/PHD area which is west of the main ridge axis. Otherwise, the ridging should maintain dry weather across most of our area through tonight. Mid level heights start to slowly decrease Wednesday as the Great Lakes trough advances. Lift would be provided by a weak impulse topping the ridge.
Warm and dry weather will continue across eastern Kentucky through the end of the day on Wednesday, as a ridge of high pressure remains firmly entrenched across the region. Temperatures in the short term will average in the upper 80s to lower 90s for highs, and in the low to mid 60s for lows. The models remain in good agreement with breaking down the upper level ridge across the lower Mississippi Valley as short wave energy moves from the Continental Divide to the northern Plains and eventually the Great Lakes and Ohio Valley regions by the weekend.
1154 AM EDT TUE SEP 6 2016 A ridge of high pressure will remain over the region into tonight.
This has had an effect on temperatures this morning as the west remains in the lower 80s while the east has warmed into the mid to upper 80s. ridge will be centered over the ArkLaMiss today and tomorrow, which should generally limit coverage of showers and thunderstorms. By tomorrow afternoon the lower level moisture looks to be pushed farther west over Louisiana, so POPs were limited to far western parts of the forecast area. Subsidence from the upper ridge and drier surface air should limit convection elsewhere.
Temperatures will warm to above normal by the end of the week as high pressure maintains dry conditions across the region. Temperatures will warm to above normal by the end of the week as high pressure maintains dry conditions across the region. Temperatures will continue to climb today and Wednesday broad troughing pattern breaks down with steadily rising 500 mb heights anticipated over across the Great Basin region for the next several days. Short term temperature trend is a bit slower than 24 hour prior with temperatures across the state running 2 to 3 degrees warmer than this time yesterday.
901 AM EDT TUE SEP 6 2016 High pressure will be North of the region this morning, with patches of stratus coming in off the Atlantic providing a few clouds.
945 AM PDT TUE SEP 6 2016 Clear and a little warmer today behind a departing trough of low pressure.
752 AM EDT TUE SEP 6 2016 A ridge of high pressure will remain over the region into tonight.
528 AM MDT TUE SEP 6 2016 Upper trough over the western CONUS will slowly shift eastward today and will cross the forecast area on Wednesday.
The upper level trough over the Great Basin will move east across the region through early Wednesday. A large but relatively weak Pacific trough is centered over Nevada this morning, but this is having little impact on the weather over the forecast area. The Nevada trough will merge with a second wave moving off the Pacific Northwest coast early this afternoon before heading eastward through Utah and southwest Wyoming. With a very dry airmass in place, very little in the way of precipitation is expected, with anything that falls primarily confined to the higher terrain of northern Utah. The passage of the trough will primarily act to temporarily increase cloud cover and limit warming for Wednesday.
837 AM PDT Tue Sep 6 2016 A fast moving frontal system will bring a chance for light rain to the lowlands today.
However, we also have an upper ridge axis over that region, which should limit destabilization. Hot and mostly dry conditions are expected today through Wed as strong upper level ridging continues to influence our weather. Temperatures both today and Wed will soar into the lower 90s.
It looks like another great day in the weather department as an intense ridge remains in place over the southeastern half of the nation. Chattanooga Airport, TN 93 67 94 68 / 0 0 0 0 Knoxville McGhee Tyson Airport, TN 92 65 91 66 / 0 0 0 0 Oak Ridge, TN 92 66 92 66 / 0 0 0 0 Tri Cities Airport, TN 89 61 88 61 / 0 0 0 0.
506 AM PDT TUE SEP 6 2016 Temperatures will warm to near normal by Wednesday as a trough of low pressure exits the region and onshore flow weakens. The long wave trof axis has passed to the east and the rising hgts behind it along with the offshore trends will allow for a nice bump up in temps today esp in the vlys. still the higher hgts and the offshore trends should keep it confined to the coasts.
1146 AM EDT TUE SEP 6 2016 Upper level ridge continues its domination.
Simply, ridging influences surface and aloft will continue to be the dominant weather player across the mid state thru Thu night. Eventually, some weakening of upper level ridging dynamics across the west and the north is expected Thu afternoon into Thu night potentially resulting in the development of isolated shwrs and tstms across northern western and Highland Rim locations of the mid state Thu afternoon into Thu night. Afternoon highs will generally be in the lower 90s, upper 80s Cumberland Plateau Region.
A warming trend will be in store this week for the interior as an upper level trough shifts eastward and high pressure builds closer to the coast. Northwest California has been under the leading edge of a building ridge aloft.
The highest coverage is expected to be near coastal areas and Lake Pontchartrain then work inland. /issued 347 AM CDT TUE SEP 6 2016/ Back door cold front on its way.
These showers should diminish as they move into ridging across the region, though a few could make it into the area west of FKL to PIT which is west of the main ridge axis. Otherwise, the ridging should maintain dry weather across most of our area through tonight. Mid level heights start to slowly decrease Wednesday as the Great Lakes trough advances. Lift would be provided by a weak impulse topping the ridge.
With high pressure at the sfc and dry air in place, it should be a quiet weather day. A noticeably cooler (at least in the morning) and drier airmass is in place today thanks to deep layer high pressure building in over the area.
Quiet weather will continue to prevail today for most of eastern Oklahoma and western Arkansas, as the area remains positioned between high pressure in the southeast United States and a front in the Central Plains states. A small potential for isolated afternoon thunderstorms in the higher terrain will exist, which is well covered by the previous forecast. but expect coverage to remain limited with the mid level ridge centered across the northern gulf coast states.
Chattanooga Airport, TN 93 67 94 68 / 0 0 0 0 Knoxville McGhee Tyson Airport, TN 92 65 91 66 / 0 0 0 0 Oak Ridge, TN 92 66 92 66 / 0 0 0 0 Tri Cities Airport, TN 89 61 88 61 / 0 0 0 0.
1100 AM EDT TUE SEP 6 2016 Early visible satellite photographs show variably cloudy skies with temperatures ranging from the lower 80s to upper 80s along the Florida Keys. Surface wise, a large area of high pressure is centered over the Southeast United States, with a ridge nosing down the Sunshine State. Outside of showers, thunderstorms and possible waterspouts, northeast to east winds will vary between 10 and 15 knots with the higher winds on the Florida Straits.
A few sprinkles over Ohio should dissipate as they move into ridging across the region. This ridging should maintain dry weather across our area through tonight. Mid level heights start to slowly decrease Wednesday as the Great Lakes trough advances. Lift would be provided by a weak impulse topping the ridge.
823 AM EDT TUE SEP 6 2016 Upper level ridge continues its domination.
1103 AM EDT TUE SEP 6 2016 Update/Marine High pressure will move east with southwest winds bringing warm humid air into Lower Michigan.
1120 AM EDT TUE SEP 6 2016 A blocking ridge aloft will keep central Pennsylvania dry and unseasonably warm, with slowly increasing humidity as the week progresses. A cold front should pass through this weekend leading to a day or two of seasonable temperatures before another warm-up occurs.
they should decrease during the morning as a distinct upper wave pulls northeast after 13z and the low level jet feeding into the southeast half of the area weakens. As far as severe potential on Wednesday, still looking at decent deep layer shear with the upper level speed max shifting eastward into eastern South Dakota and central/southern Minnesota by midday with the approaching trough.
1046 AM MDT TUE SEP 6 2016 Dry and breezy southwest flow will continue across the forecast area today as a trough of low pressure remains over the eastern Great Basin. The trough which has persisted to the west over the past several days will finally sweep eastward over the area Wednesday resulting in a westerly flow. Flow aloft weakens following trough passage so expect less wind Wednesday afternoon. Expect afternoon temperatures to peak near those recorded on Labor Day, then becoming a bit cooler Wednesday in the wake of the upper level trough described previously.
The low clouds and fog have led to IFR/LIFR conditions across much of East Texas and portions of Louisiana along and south of I-20. Heat index values for today to range from 100 to 104 degrees today across some locations due to warmer temperatures and increased low-level moisture within southerly flow. Upper-level ridge to become better established across the region through late in the work week allowing for diminished rain chances and temperatures holding in the mid 90s.
As a front departs to the east and an upper low approaches from the northwest, clouds are producing a mix of MVFR and VFR cigs across the area.
903 AM EDT FRI JUN 10 2016 A warm front will push northeast across the Great Lakes today and tonight. Hot temperatures are expected on Saturday as a west to southwest flow develops well ahead of a cold front dropping south toward the Great Lakes.
637 AM CDT FRI JUN 10 2016 Upper level ridge remains parked over much of the Central U.
This morning, a few showers and weak thunderstorms may move into far western or northwestern Oklahoma, mainly west of a Woodward to Cheyenne line close to a weak mid/upper level trough.
1144 AM CDT FRI JUN 10 2016 Upper level ridge remains parked over much of the Central U.
At the surface, low level flow pattern remains convoluted as weak low pressure appears to be developing along/near the frontal trough that is lingering over the central portions of the forecast area. The Treasure Coast and Okeechobee County, closer to the trough axis and higher moisture, should see showers and storms develop starting early this afternoon.
Southwest flow will continue across the region through the weekend as an upper trough deepens along the west coast. Moisture working north ahead of this trough will start to spread into Utah tonight and remain in place through the weekend. Southwesterly flow aloft prevails across the Great Basin this morning, sandwiched between an upper low spinning over the Pacific Northwest, and a mid level ridge centered over the desert southwest. A well defined wave noted in water vapor imagery rotating around the base of the mid level ridge is forecast to lift northward across the forecast area late tonight through Saturday, accompanied by a surge of PW.