Aikyam-Lab/Synoptic-Bench huggingface dataset:
610 AM EST Wed Dec 6 2017 A strong cold front will cross the area this morning. High pressure will build south of the region tonight into Thursday. A strong cold front continues to approach the region from the west. As the front moves through this morning the rain will briefly change to snow showers before ending and colder air will move in from the west behind the cold front. Upr lvl trof wl be the main wx-maker thru the end of the week. Pattern wl rmn pretty stagnant thru the end of the pd with troffing resulting in sw flow with an ocnl weak s/wv zipping acrs. This wl lkly keep flurries/isold snow showers in acrs the nw in the higher terrain with vry minimal in the way of any accums.
An upper impulse is overrunning our cold front from yesterday. /issued 323 AM CST Wed Dec 6 2017/ 700mb trough lagging behind surface boundary allowing for southwest flow in lower-levels to overrun cold airmass across the ArkLaTex. Periods of widespread rain to continue throughout the day and into tonight mainly south of interstate 20 before gradually clearing on Thursday as 700mb trough finally eases across the region. Temperatures today to climb into the low to mid 50s with overnight lows forecast to fall into the 30s.
312 AM MST Wed Dec 6 2017 Rather chilly conditions will hold over the CWA today through Thursday as the area remains under northerly upper flow between a positively tilted upper trough from the Great Lakes area southwestward and a narrow upper ridge over the far western CONUS.
This will allow temps to remain even cooler for Thu afternoon.
Scattered showers are occurring in interior se GA just ahead of a cold front that will move across that area through early afternoon. VFR conditions expected today ahead of cold front. after cold front passes late this afternoon through Tonight. Sw winds today will shift to the north and increase this evening as a cold front moves across the waters. Advisory conditions will be possible mainly offshore Thursday through the weekend as winds and seas increase with strong high pressure building in from the west.
332 AM MST Wed Dec 6 2017 Minimal changes to latest forecast as a deep trough remains over the eastern half of the country while a large ridge has set up over the West Coast. The anomalous NOAM Left Coast ridge will shift just enough inland late in the week that any cold air dropping down the backside will be directed well to our east.
Global model and ensemble guidance remains in very good agreement on the maintenance of high latitude blocking pattern featuring an amplified ridge-trough configuration over the West Coast and eastern NOAM. Finally, there appears to be multiple waves of low pressure lifting north along a western Atlantic front from late week into the early weekend timeframe, with guidance varying on specifics.
Strong high pressure over the region will continue to bring dry conditions for the foreseeable future.
414 AM MST Wed Dec 6 2017 Upper level analysis has highly amplified flow with large trof across the central and eastern CONUS, and sharp ridge along the West Coast. Clipper system and associated cold front will drop south through the forecast area this morning, bringing continued light snow for much of the area, along with gusty northwest winds.
Satellite shows overcast to broken cloud cover that will be across the area through the day, and with a cold advection pattern in the NW flow, temperatures will top out in the lower to mid 40s in most spots. The 12Z OHX sounding shows dry air up to 500 mb, so any precip from the high clouds will evaporate before reaching the ground.
530 AM CST Wed Dec 6 2017 Water vapor and 500 mb analysis early this morning is indicative of a very wintry pattern over the north central CONUS with northerly flow across the area on the western periphery of a deep upper trough south of Hudson Bay. A broad upper trough will rotate southeastward through the day, and although lift is not particularly strong, with cyclonic flow and soundings indicating a relatively deep saturated snow growth zone, expect at least scattered snow shower/flurry development today into tonight which could amount to a light coating of a few tenths of an inch.
632 AM EST Wed Dec 6 2017 A strong cold front slowly crossing the Midlands will reach the coast by late morning.
An amplified upper ridge was located over the west coast early Wednesday morning. This ridge is forecast to be a quasi-permanent feature during the next 7 days, and will preclude the occurrence of rainfall over NWRN CA during that time frame. Strong high pressure will dominate through the period resulting in light winds and low seas.
1140 AM EDT Fri Apr 13 2018 High pressure centered off the coast will continue ridging into the southeastern states through Saturday.
CC An upper level trof will continue to move eastward into the central Plains state today.
955 AM PDT Fri Apr 13 2018 High pressure and offshore flow will bring sunny and much warmer weather to Southern California today.
In the low levels of the atmosphere, an Atlantic ridge of high pressure will extend across the Southeastern United States this afternoon. In the mid levels of the atmosphere, an Atlantic ridge of high pressure will extend across the Florida Straits today. In the upper levels of the atmosphere, a ridge of high pressure will amplify over the eastern Gulf of Mexico this afternoon.
1225 PM EDT Fri Apr 13 2018 High pressure centered off the coast will continue ridging into the southeastern states through Saturday.
Easterly flow continues through the period with high pressure over the area becoming 15 to 20 knots with higher gusts through the evening. /issued 410 AM EDT Fri Apr 13 2018/ Today through Saturday night: Gradually weakening influence of the western Atlantic ridge and falling heights over the Southern Plains will cause gradual backing of the surface winds to the area later today and tonight. Winds continue to back and increase Saturday out of the SE, but forecast soundings indicate the moisture will still be somewhat shallow, so dewpoints may mix down into the low 60s interior.
Chattanooga Airport, TN 82 61 76 59 / 0 10 80 80 Knoxville McGhee Tyson Airport, TN 81 61 77 61 / 0 10 50 60 Oak Ridge, TN 81 60 76 61 / 0 10 60 60 Tri Cities Airport, TN 80 55 79 59 / 0 10 20 40.
Western Atlc east-west oriented high pressure ridging north of the area.
Latest consensus guidance supports current high temperature forecast in the lower- mid 80s well inland, around 80 I-95 corridor, and mid-upper 70s coast. High pressure will remain northeast of the region through Tonight and then to the east on Saturday.
Freezing temperatures are likely late tonight and Saturday morning for the coldest eastern and southern valleys. With the cold front east of the area, our temperature trends are down 15-20 degrees compared to yesterday. A look at latest model trends suggests Sulphur Springs Valley and San Pedro River Valley (including much of Cochise and portions of Graham county) will manage to establish inversions in the early morning hours and drop below freezing. Even though it will be much cooler, the air mass will be extremely dry with dewpoints dropping to near zero in many areas.
/issued 440 AM CDT Fri Apr 13 2018/ A deep upper level cyclone will lift out of the central Rockies into the central plains today. This system will bring blizzard conditions to portions of the central and northern plains today, extreme fire weather conditions to the southern high plains, and severe thunderstorms over eastern portions of the southern plains and the lower MS River valley.
Freezing rain may occur Sat AM toward central WI. MVFR Vsbys will develop later this morning as the low levels saturate, and continue into Sat with Vsbys going to 2SM at times. Freezing rain may occur Sat AM toward central WI. MVFR Vsbys will develop later this morning as the low levels saturate, and continue into Sat with Vsbys going to 2SM at times.
1049 AM EDT Fri Apr 13 2018 Dry and warm weather will continue into Saturday before rain chances again increase with the advance of low pressure. Dry weather is expected to continue into Sat morning as upper ridging amplifies in response to a digging trough over the Plains.
A weak warm front pushing through east-central Oregon is increasing cloud cover this morning and will introduce a slight chance of showers as it crosses Baker county and far northern Harney and Malheur counties this afternoon. Temperatures are on track to be 5-10 degrees warmer than yesterday.
814 AM EDT Fri Apr 13 2018 Dry and warm weather will continue into Saturday before rain chances again increase with the advance of low pressure. Minor adjustments made to temperature and dewpoint forecasts trending warmer and drier. Dry, warm, and breezy conditions will continue today under broad Eastern CONUS ridging.
905 AM EDT Fri Apr 13 2018 A broad area of high pressure centered near Bermuda ridges west- southwest over the area producing continued pleasant weather. Atlantic high pressure is ridging across northern Florida and into the northeastern Gulf of Mexico today.
Expect gusty north to northwest winds amd much cooler temperatures today in the wake of yesterday's cold front.
A warm front is shifting to the northeast some areas, mainly the northwestern portion of the Medford CWA, have gotten a few sprinkles. A ridge to the south will remain over the area today into tomorrow.
most noticeably near and east of the Lower Colorado River Valley.
High pressure will return to the Interior West for the weekend. A broad upper level trough continues to cross the central Rockies into the High Plains. The back edge of this trough will clear the area later today. The highest amounts occurred downwind of Utah Lake. The high wind warning for the Great Salt Lake Desert continues through noon and will assess whether this will be allowed to expire or will need to be extended later this morning.
Could see scattered shower and thunderstorm activity outside of KLRD late in the cycle along a cold front. Cold front will approach late tonight, catching up to the dryline, generating scattered to numerous showers and thunderstorms. Behind the front much drier air sweeps into the region which will help to lower relative humidity values into the lower teens across the west; slightly higher east.
806 AM EDT Fri Apr 13 2018 High pressure centered off the coast will continue ridging into the southeastern states through Saturday.
Today will be a warmer and drier day. The ridge will be a little stronger which will let temperatures for much of the area climb into the low to mid 90s. For the most part today should be dry, but a few afternoon storms are possible mainly over the higher terrain. Going into Monday a cold front will drop through the area.
High pressure will remain in control of the weather across Arkansas with VFR conditions forecast.
343 AM CDT Sun Jul 30 2017 Our anomalous late-July cold front has slipped south of the region this morning, although you wouldn't necessarily notice it looking at the surface observations or stepping outside. With cooler air in limited supply behind the front, another warm (and muggy) day is on tap across our Central Texas Counties as temperatures look to warm into the upper 90s (perhaps even nearing the century mark south of Waco).
637 AM EDT Sun Jul 30 2017 High pressure will provide dry weather and seasonable temperatures through Monday. Large area of high pressure over the central Great Lakes will make for another beautiful summer day. Continue under an upper level trough this period.
626 AM EDT Sun Jul 30 2017 Dry with pleasant temperatures today as high pressure builds in from the northwest. A cold front from Quebec will approach the region on Monday and move across the region Monday afternoon and evening.
The eastern periphery of the upper ridge that has been in control of area wx will erode during the early/middle parts of the week.
324 AM EDT Sun Jul 30 2017 High pressure with cooler and drier air prevails for the remainder of the weekend and through mid week. Low pressure pulling off the eastern coast with residual wrap- around moisture working south across central and eastern West Virginia. Atmospheric column continues its drying trend has high pressure builds in more on Sunday.
426 AM EDT Sun Jul 30 2017 High pressure over the western Great Lakes will provide dry and comfortable northerly flow over central PA to finish the weekend. High pressure will build over the region Monday. Highs will range from the mid to upper 70s north to the lower 80s southeast with a light northerly breeze, and comfortable humidity. Monday afternoon a surface cold front will drop south into Upstate NY.
1151 PM MDT Sat Jul 29 2017 06Z TAF CYCLE Showers and storms over the northwest two thirds of NM at 05Z to slowly diminish through 12Z, then regenerate over the higher terrain aft 17Z. West TX upper high centroid seems to have become the dominant circulation today. Deformation (atmospheric stretching) between the west TX circulation and a second upper high center over NV helping to get storms going over much of western and central NM early this afternoon. Additionally, the west TX portion of the upper high circulation is forecast to move west over central NM Sunday, decreasing storm steering flow and increasing heavy rain potential. North winds aloft develop over northern NM late-day Monday as the upper high over the Great Basin takes over.
447 AM MDT Sun Jul 30 2017 Latest analysis shows the western CONUS upper ridge building eastward over the forecast area for today. At the surface, high pressure is centered over the midwest with a weakly defined low pressure trough to the east of the Rockies resulting in relatively light easterly sfc winds over the forecast area today. This will bring increasing low level moisture into the region this morning with dewpoints in the lower to mid 60s on the South Dakota plains and in the lower to mid 50s over northeastern Wyoming and the Black Hills. Diurnal heating, combined with the low level moisture will result in a N-S band of SBCAPE ranging from 1000-2000J/KG over wrn SD this afternoon, with much lower values over nern WY.
537 AM CDT Sun Jul 30 2017 Another nice summer day expected for central and southeast IL as 1023 mb high pressure will be anchored over northern IL and southern WI through tonight. Highs yesterday were in the upper 70s to around 80F and will be a few degrees warmer today, in the lower 80s with ne winds around 10 mph or less. Lows tonight in the lower 60s with light winds expected.
206 AM PDT Sun Jul 30 2017 High pressure will strengthen across the Sierra and western Nevada bringing hot temperatures along with isolated thunderstorms each afternoon and evening. Potentially record-breaking heat will be the main concern through much of the week until high pressure shifts east by the end of the week. Thunderstorms may become more widespread as high pressure moves eastward and southerly flow returns. High pressure still on track to intensify across the Sierra and western Nevada resulting in hot temperatures across the lower valleys.
354 AM EDT Sun Jul 30 2017 Dry with pleasant temperatures on today as high pressure builds in from the northwest. A cold front from Quebec will approach the region on Monday and move across the region Monday afternoon and evening.
404 AM CDT Sun Jul 30 2017 The cold front has moved into the Gulf of Mexico and drier air should move into the area.
538 AM EDT Sun Jul 30 2017 High pressure will maintain dry and seasonable weather through the start of the work week. High pressure will remain firmly in control.
257 AM EDT Sun Jul 30 2017 Dry weather is expected to end the weekend as high pressure remains over the North Country. A weak frontal system will drop south from Quebec and could provide some isolated showers generally over the higher terrain on Monday afternoon.
High pressure remains anchored over the upper midwest, tucked beneath lower amplitude mid level northwest flow defining the periphery of broad upper ridging stretching back through the central/western conus. Surface ridging broadens with time to encompass much of southern lower Michigan, a response to persistent positioning of weakly confluent northwest flow overhead. Any further airmass modification appears limited given retention of weak northwest to west low level flow and continued displacement of the upper ridge axis to the west.
Large scale mean ridge position through western states, but the most significant high center consolidation is immediately east of our area with an inverted trough extending from central Baja through Arizona.
250 AM CDT Sun Jul 30 2017 Relatively cooler conditions will persist today with the chance of primarily isolated showers. There is an axis of higher instability over the high plains, centered west of our forecast area.
344 AM EDT Sun Jul 30 2017 High pressure will continue to build into the area today. A fairly deep mid level trough will remain anchored just offshore through the period. The long advertised fall like air mass is here with todays highs expected to be in the lower 80s along the coast with middle 80s inland.
340 AM EDT Sun Jul 30 2017 Today: Strong low pressure observed in the latest wv imagery to the northeast portion of the Mid-Atlantic states with a frontal boundary extending southwestward into the FL panhandle. This has helped push the influence of the high pressure towards the east over the Atlantic waters.
304 AM EDT Sun Jul 30 2017 Temperatures across central KY and southern IN generally range from the mid 50s to lower 60s, with the Louisville metro a bit warmer. High pressure over the upper Midwest will slowly drift eastward through Monday. Highs today will be 2-3 degrees warmer than yesterday, with Monday a couple degrees warmer than today.
High pressure will remain over western Montana and central Idaho today and Monday, maintaining above normal temperatures. The latest model runs are now showing the strong ridge of high pressure building further west.
An upper ridge will build back into the area today with dry and sunny weather expected. Lee trof along the front range will be strengthening today with circulation centered in southern Alberta. Should see some increase in the generally south winds, mainly focused over north central Montana closest to the low pressure. Canadian high pressure will push south behind the front on Monday, with winds turning north and cooler air filtering south of the border. A few thunderstorms are possible Monday afternoon, focused in southeast Montana where cooler air from the north will encounter the increased moisture on the edge of the monsoonal plume. High pressure begins to concentrate over the Southwest States. But disturbances over Canada will flatten the ridge over Montana Monday evening.
357 AM CDT Sun Jul 30 2017 Relatively cooler conditions will persist today with the chance of primarily isolated showers. There is an axis of higher instability over the high plains, centered west of our forecast area.
Farther north, a cold front stretches across the Florida Panhandle and is also drifting southward. The cold front, which extends from Texas to North Florida, will continue to drift southward across the state of Florida today, and will stall across Central Florida late Monday.
116 AM EDT Sun Jul 30 2017 High pressure will maintain dry and seasonable weather through the start of the work week. Fair weather expected today as high pressure builds into the region. High pressure will remain in place through the start of the week.
A strong upper level ridge will move into position just south to southwest of the area through Monday. Overnight lows will remain in the lower to mid 60s in the valleys and mainly 50s in the mountains.
608 AM EDT Sun Jul 30 2017 A ridge of high pressure will continue to provide dry and mostly sunny conditions today. High temperatures this afternoon will reach into the lower 80s.
An upper level high is centered just south of the Texas Panhandle, with a weak stationary frontal boundary still in place across the western Texas & Oklahoma Panhandles.
High pressure will continue to linger across the region today and tonight.
408 AM CDT Sun Jul 30 2017 An unusually dry airmass continues to surge southward into the ArkLaMiss region early this morning as high pressure builds over the area. /EC/ Northwest flow will persist across the region aloft, while high pressure at the surface wedges itself into the ArkLaMiss from the north.
253 AM CDT Sun Jul 30 2017 253 AM CDT Weak lake breeze likely to keep temps a couple/few degrees cooler near the lake this afternoon.
Deep northerly flow aloft and broad upper troughing over great lakes region will keep this new somewhat cooler and drier pattern across the area.
Forecast soundings show erosion of any convective inhibition (CIN) over the mountains by the noon hour, and 2-3 PM over the Cheyenne Ridge and perhaps the Palmer Divide. Those storms should then begin to pull off the higher terrain and spread southeast as the cap weakens/erodes across the adjacent plains. High temperatures today will be a couple degrees warmer, but still a few degrees below normal. Locally heavy rain will continue to be a threat, but it is difficult to pinpoint which areas will be at the highest risk. With moisture levels in the airmass near the annual maximum, temperatures are going to be held in the lower and mid 80s.
121 AM EDT Sun Jul 30 2017 High pressure over the Upper Great Lakes will build slowly southeast and become located over the region Monday. As the high drifts just south of the state, it will gradually become more muggy through the mid week period. A stellar/sunny day is on tap for Sunday as high pressure spreads out to cover the OH Valley and entire Midwest. Monday afternoon a surface cold front will drop south into Upstate NY.
302 AM CDT Sun Jul 30 2017 253 AM CDT Weak lake breeze likely to keep temps a couple/few degrees cooler near the lake this afternoon.
1151 PM MDT Sat Jul 29 2017 A large scale high pressure ridge aloft will gradually shift west as a series of alberta clippers moving down the east side of the ridge bring cooler air south in northwest flow. There will be enough moisture rotating up the west side of the ridge, then drifting east across Wyoming with marginal instability producing scattered showers and isolated thunderstorms, most numerous over the northern and western mountains. A large scale high pressure ridge aloft will remain shifted to the west as a series of alberta clippers moving down the east side of the ridge bring cooler air south in northwest flow. Temperatures will remain cooler an winds will be rather light with north to northeast winds and terrain driven valley and canyon winds.
Strengthening high pressure aloft across the Great Basin will bring a gradual warming and drying trend to the region through the middle of the upcoming week.
305 AM EDT Sun Jul 30 2017 High pressure will maintain dry and seasonable weather through the start of the work week. Fair weather expected today as high pressure builds into the region. High pressure will remain firmly in control.
Deep mid/upper level trough will remain along the eastern U. A series of mid/upper level disturbances will move through the trough increasing the lift and with deep moisture setting up across the region we'll see rounds of showers and thunderstorms develop. The highest rain chances will remain along and just south of the boundary during the period so best chances are across the Nature Coast today and then from around Tampa Bay south and east late tonight and Monday.
Moisture will be plentiful, but hard to find strong synoptic scale forcing under ridging aloft.
531 AM EDT Sun Jul 30 2017 High pressure will maintain dry and seasonable weather through the start of the work week. High pressure will remain firmly in control.
311 AM CDT Sun Jul 30 2017 The much advertised late July "cold front" is presently traversing the area as denoted in observations by a 5-10 degree change in dewpoint.
325 AM CDT Sun Jul 30 2017 Another nice summer day expected for central and southeast IL as 1023 mb high pressure will be anchored over northern IL and southern WI through tonight. Highs yesterday were in the upper 70s to around 80F and will be a few degrees warmer today, in the lower 80s with ne winds around 10 mph or less. Lows tonight in the lower 60s with light winds expected.