Aikyam-Lab/Synoptic-Bench huggingface dataset:
246 AM CDT SUN AUG 21 2016 Drier air continues to slowly filter northeast Oklahoma early this morning behind cold front with unseasonably cool conditions. This will allow low level moisture to surge back north into the region Monday afternoon into Monday night with a chance for scattered showers/thunderstorms as warm front lifts north.
120 AM EDT SUN AUG 21 2016 A strong cold front will move through the forecast area overnight and a secondary trough will follow Sunday evening. High pressure will then be positioned across the region for much of the week.
KJB 250 PM CDT Sunday will be cooler with a slight chance of light rain showers. However, the vorticity associated with the back side of the upper level trough could cause a few showers to form. High pressure then builds over the region Sunday night before shifting over the Ohio valley Monday night.
A low pressure system off the southern California coast will provide for an offshore flow aloft over the region through Monday.
343 AM EDT SUN AUG 21 2016 High pressure will move east into the Maritimes today. A strong cold front will approach tonight and cross the region Monday morning.
Today will be another great day across the Northern Rockies, while being slightly warmer than yesterday, and could be the last above normal day in the foreseeable future. A strong, and mainly dry cold front will sweep through the Northern Rockies during the afternoon and evening hours. Also, the dry nature of the cold front, along with the winds, will create critical fire weather conditions for some.
A relatively dry airmass remains in place, with several layers indicating active subsidence within multiple ridge axes layers.
339 AM CDT SUN AUG 21 2016 An upper-level trough swinging through the OH/TN Valley region and the associated surface front moving in from the northwest should lead to scattered to numerous showers and storms once again across the forecast area. As the upper-level trough becomes displaced from the front, it will lose forward speed and stall across the CWA on Monday.
407 AM CDT SUN AUG 21 2016 Current surface analysis places high pressure through the plains. Upper level analysis shows trough over the western Great Lakes into the midwest, while broad ridge builds over the west. quiet weather continues as ridge builds into the area. Upper low moves over the Canadian Rockies on Monday with ridge amplifying ahead of it.
500 AM CDT SUN AUG 21 2016 Water vapor satellite animation confirms the presences of an amplifying mid-tropospheric trough digging southeastward through the Great Lakes/upper Midwest this morning. Fairly widespread showers and a few thunderstorms have developed within the warm/moist advection regime -- with ascent associated with a weak vorticity maxima approaching the region from the lower MS valley likely enhancing the coverage of this activity.
BETTER COVERAGE OF STORMS ARE EXPECTED IN THE AFTERNOON WHEN A COLD FRONT MOVES ACROSS THE AREA, AND WILL MENTION VCTS AT ALL SITES.
216 AM PDT SUN AUG 21 2016 Thunderstorm chances increase today and Monday as a ridge of high pressure breaks down moisture begins to increase from the south o the north. This increase in convection is in response to the ridge over the region weakening and sliding east- southeast as a trough approaches the west coast then moves east across southern Oregon Monday. As the ridge weakens.
341 AM MDT SUN AUG 21 2016 Water vapor loop depicted a upper trough from a Hudson Bay low south to the Missouri River valley. A broad upper ridge dominated the western CONUS with its center over northern California. Short range models are in good agreement with the western CONUS ridge progressing east across the Rockies and Great Plains through Monday as a fairly deep upper low tracks east across southern British Columbia and Alberta. It will be quite warm with highs into the low-mid 90s east of I-25, with 70s and 80s to the west.
159 AM CDT SUN AUG 21 2016 High pressure centered over the central Plains will build east across the Mid Mississippi Valley today and into the Ohio Valley by early Monday morning. Highs in the mid 70s to around 80 today combined with this low humidity will feel more like September 21 than August 21.
313 AM CDT SUN AUG 21 2016 High pressure is settling over the region this morning with clear skies and light winds. The aforementioned high will move east of the area today with south to southwest winds and warmer temperatures moving in. The heat will build into Monday as southerly winds increase and broad upper level ridging builds over the Dakotas.
activity developing near a cold front that was progressing SE through the state. Much cooler and less humid conditions will be seen tonight as the drier air continues to filter into the state. The cold front will attempt to lift back north as a warm front on Mon into Mon night.
The cold front will continue to slowly push south through the state overnight. This was triggered by an upper short wave system moving through the region, while the expected cold front has only made progress to far northwestern AR at this time. The upper level low pressure trough is deepening in the eastern Plains at this time and will help the movement southeast of the cold front. Tonight Through Monday Night Will keep a likely chance of rain and showers with isolated thunder in the evening and tonight period, trending lower chances as the cold front pushes through the state. Otherwise, temperatures will be cooler than normal on Sunday, then a bit warmer on Monday.
416 AM CDT SUN AUG 21 2016 (Today and Tonight) The cold front that moved across the area yesterday will remain stationary across the Texas Hill Country today. Temperatures will remain below normal again today, with afternoon highs in the lower and middle 80s. The aforementioned stationary front should begin to lift slowly north as a warm front across the southern half of the CWA this evening and will provide a focus for additional rain chances overnight. (Monday) As the warm front continues to lift north on Monday, the combination of increasing moisture and lift along the warm front may bring scattered showers and a few thunderstorms to the region Monday and Monday evening.
1018 AM EDT Fri Apr 14 2017 Aviation section updated A warm front across the northern portions of central Indiana will move slowly north into the great lakes as low pressure over the central plains moves into the great lakes Saturday. A trailing cold front will bring thunderstorms our way.
Surface map at 07Z shows a ridge of high pressure near the East Coast with a weak isobaric pattern over Middle Tennessee. Temperatures will level off after today, but don't look for a pattern shift anytime soon, as high pressure to our east remains largely stationary over the next several days and offers an early glimpse of a summer-like pattern. The next cold front will approach from the west this weekend, but will rotate around the surface/upper high instead of pass through.
1252 PM EDT Fri Apr 14 2017 High pressure will build southward into the area today and linger over the central NC through Saturday.
1108 AM EDT Fri Apr 14 2017 A warm front will linger across the northern portions of the region today before lifting north tonight.
750 AM MDT Fri Apr 14 2017 Corrected minor spelling errors IR Satellite channels show nearly cloudless skies over the forecast area and clearly shows the cooling line associated with the cold front advancing to the southeast across WY and NW and central CO. The cooler temps behind this front will help keep humidities higher, longer into the day, along with less of a pressure gradient and less wind, eliminating fire weather concerns in the north.
1056 AM CDT Fri Apr 14 2017 Warm front expected to lift further north through today. A frontal boundary just south of I-72 is expected to lift back north as a warm front today, and should get north of CWA during early afternoon. Convection chances to diminish from sw to ne during this evening as warm front pulls further north away from area and mid level level short wave moves into western Great lakes. Upper level ridge over IL today continues to influence IL's weather on Saturday bringing a breezy and even warmer day in the lower 80s across the area. Should stay dry on Saturday with a cap in place, though GFS model is showing some qpf in southeast IL on Sat, but discounted that for now with upper level ridge nearby.
Radar and satellite from west of the Cascades would confirm this with good onshore flow around the upper low.
Upper level trough over the Pacific Northwest will roll into southern Canada by late Sat into Sun. Upper level jet will be on the south and east side of the upper low and over the Northern Plains late today and through 84 hours. With upper level jet moving into the area, the low level jet will respond. Cold front over western MT will move through Fri night. Another cold front will move through Sat afternoon/evening.
The cold front over southern Utah this morning has left cool temperatures across central and northern for today and Saturday.
Not too much of a change in the overall synoptic pattern since yesterday as a longwave trough remains in place over Washington and Oregon. With fewer clouds across the area, lows managed to bottom out in the mid 50s (a few degrees cooler than yesterday) and as such temps are running a few degrees behind where they were at 15Z yesterday.
643 AM CDT Fri Apr 14 2017 High pressure continues east of Arkansas and moisture will stream into Arkansas with the south flow on the back side of the high. Today Through Saturday Night An upper ridge is over the eastern U. this morning with an upper low pressure system near the Pacific Northwest and over the Plains. The upper ridge will remain over the southeast U. as the upper low pressure systems move to the northeast and remain north of the ridge. A warm front in the Midwest this morning will slowly move north into the Great Lakes tonight. A cold front will slowly move through the Plains today and Saturday but should remain northwest of Arkansas through Saturday night. with highs in the lower to mid 80s.
1054 AM MDT Fri Apr 14 2017 IR Satellite channels show nearly cloudless skies over the forecast area and clearly shows the cooling line associated with the cold front advancing to the southeast across WY and NW and central CO. The cooler temps behind this front will help keep humidities higher, longer into the day, along with less of a pressure gradient and less wind, eliminating fire weather concerns in the north.
Cold front entering western ND at 15z and ahead of it is sunshine. Upper level trough over the Pacific Northwest will roll into southern Canada by late Sat into Sun. Upper level jet will be on the south and east side of the upper low and over the Northern Plains late today and through 84 hours. With upper level jet moving into the area, the low level jet will respond. Cold front over western MT will move through Fri night. Another cold front will move through Sat afternoon/evening.
Low pressure system that brought widespread precipitation overnight moves northward into Canada and strengthens through the day.
This is in response to increasing 500mb heights as weak upper ridging starts to build in allowing the atmosphere to stabilize. A preliminarily look at the new data does not give me higher confidence that temperatures will drop at or below freezing for longer than a few hours tonight. A low pressure will remain well north of the waters today with showers over the area. High pressure will build into the waters resulting in north winds on Saturday.
These clouds should move off to the north as weak ridging builds over the region today. The pattern remains summer-like Saturday with mid and upper-level ridging centered over the southeastern CONUS through that evening. Waning subsidence and slightly cooler low-level temperatures suggest a slightly cooler day Saturday, though the forecast will continue to trend above blended guidance.
1040 AM EDT Fri Apr 14 2017 High pressure to the north will shift offshore and prevail through the weekend.
Surface ridging will keep winds light and variable at night. Upper and surface ridging will prevail through the forecast with a relatively dry airmass.
However, a layer of dry air around 850 mb, on the western periphery of high pressure centered over the Southeastern U. /ISSUED 425 AM CDT Fri Apr 14 2017/ A southeasterly fetch off the Gulf is remarkably dry at 850mb as it swings around the periphery of an anticyclone over the southeastern states. Weak troughing will remain above North and Central Texas today, and even with some sunshine, afternoon temperatures will only be a few degrees above normal.
1020 AM EDT Fri Apr 14 2017 High pressure will build southward into the area today and linger over the central NC through Saturday.
1027 AM CDT Fri Apr 14 2017 All in all a fairly quiet day expected for this Friday, with temps topping out in the low to mid 80s areawide.
937 AM EDT Fri Apr 14 2017 High pressure will crest over our region later today and then move offshore tonight.
1034 AM EDT Fri Apr 14 2017 High pressure will continue to expand southward along the coast Today. Winds/seas to increase Today as high pressure expands southward along the coast.
1049 AM EDT Fri Apr 14 2017 The upper level ridge is building into the region and will lead to highs in the low to mid 80s across most valley locations. PW values will increase to around an inch this afternoon and there could be a few showers or storms across the higher elevations but expect the valley will remain dry. Chattanooga Airport, TN 86 59 82 59 / 10 10 10 10 Knoxville McGhee Tyson Airport, TN 84 58 80 58 / 10 10 10 10 Oak Ridge, TN 83 58 81 58 / 10 10 10 10 Tri Cities Airport, TN 82 51 81 52 / 10 10 20 10.
9 AM temperatures were the same or 3-5 degrees cooler than 24 hours ago. The 700 mb temperature was also about 4 degrees F cooler than yesterday.
930 AM PDT Fri Apr 14 2017 Highs slightly below normal today under zonal flow aloft, then high slightly above normal for the weekend under weak high pressure.
759 AM EDT Fri Apr 14 2017 Dry conditions will continue until rain chances return with weekend low pressure.
High pressure will provide dry and warmer weather through Saturday.
/issued 443 AM CDT Fri Apr 14 2017/ Overnight clouds confined mainly to vrbl upper lvl cirrus as proximity of upper ridge shutting off gulf flow, and keeping low clouds mainly west of I-35. As the upper ridge shifts deeper into the se states, southerly flow to deepen across area and may begin to see effects of sea breeze with isold to scattered showers and possible thunder, mainly across portions of north LA south of I-20 Sat aftn into early eve.
An upper level trough will maintain showers over the region through this evening. Showers will come to an end tonight and Sat as high pressure moves into the area.
Rain showers will diminish today as the upper trough lifts to the north. Then building high pressure will bring dry weather and slightly warmer temperatures for Saturday.
928 AM EDT Fri Apr 14 2017 High pressure moving off of the eastern seaboard will maintain fair and dry conditions today.
1107 AM EDT Fri Apr 14 2017 Currently - Broad high pressure over the eastern United States is driving moderate to fresh breezes across the Florida Keys and surrounding waters. As a result, dew points are in the low to mid 60s. Increasing ridging aloft is bringing in drier and warmer air at those levels. Short Term Update (this afternoon) - Moderate to fresh northeast to east breezes will continue due to the high pressure to our north. Expect temperatures in the lower 80s with dew points remaining in the low to mid 60s. High pressure over the eastern United States will continue to drive moderate to fresh northeast to east breezes across Keys waters this afternoon.
a dryline remained over the Oklahoma/Texas Panhandles with a cold front positioned from Nebraska through the upper Midwest and into Ontario.
826 PM EDT Sat Oct 15 2016 High pressure centered over New England will drift south over the next several days.
/issued 301 PM CDT SAT OCT 15 2016/ Winds this afternoon have generally been higher across the Rolling Plains and eastward as the surface trof axis extends from south- central KS southward through western OK into the Big Country. Winds are expected to remain around the 10-15 mph range across our eastern zones through midnight as the surface pressure gradient stays tight along the trof axis. After a decrease in wind speeds after midnight through the morning hours, winds are expected to increase once again tomorrow afternoon to 15-20 mph due to the tightening surface gradient associated with another lee trof. The high for Lubbock tomorrow, 90F, is within 2 degrees of the record high of 92 degrees. Despite the warm temps observed today, temps overnight will be cooler than observed this morning due to lower dewpoints and no expected low level stratus.
932 PM EDT Sat Oct 15 2016 High pressure will remain over the region into Sunday with dry conditions and slowly moderating temperatures. A cold front will drop through the region Sunday night bringing the chance for showers.
1143 PM CDT Sat Oct 15 2016 Summer-like weather was beginning its return to the Ozarks this afternoon as an upper level ridge was building into the region. Otherwise, a mild and breezy night is on tap with low temperatures ranging from the lower 60s across the far eastern Ozarks to the upper 60s along the I-49 corridor. Temperatures will be even warmer as 850 mb temperatures warm into the 16-20 Celsius range. High temperatures will therefore range from the lower 80s across the eastern Ozarks to the middle and even upper 80s along the I-49 corridor.
Forecast challenge for tonight will be overnight lows and with clear skies and winds light by late evening, expect temps to drop well into the low 40s. Winds will decouple tonight and weak SFC ridging will slide across the FA. Will maintain the highest chances over northwest Minnesota Sunday evening where PWATs are expected to rise to around an inch.
An upper trof is now moving into wrn AL with most of the cloud cover associated with the trof east of I65. Not to confident that this trof will produce any pcpn over the TN valley overnight, due to a fairly dry atmosphere as shown by the 00z u/a soundings from BMX and OHX. After lows "only" in the lower 60s tonight, high temperatures Sunday afternoon should warm into the lower 80s.
Closed upper low currently spinning over northeastern Alabama will work into northwest Georgia in the overnight. Expect low's tonight to be down in the lower 60's with upper 50's along the plateau. Closed upper low centered just south of Huntsville Alabama based on latest RAP40.
Expect lows generally in the lower 60s, but a few pockets, the usual cold spots, will drop into the 50s. The short term forecast will feature dry weather with an upper level ridge building to our SW and another weather system passing well to our north. The building ridge will start the well advertised significant warm-up over the Ohio Valley. With temps already overachieving across the region today, went ahead and bumped up highs for Sun into the lower 80s area wide.
620 PM CDT Sat Oct 15 2016 Forecast challenge for tonight will be overnight lows and with clear skies and winds light by late evening, expect temps to drop well into the low 40s. Winds will decouple tonight and weak SFC ridging will slide across the FA. Will maintain the highest chances over northwest Minnesota Sunday evening where PWATs are expected to rise to around an inch.
1205 AM EDT Sun Oct 16 2016 High pressure centered over New England will drift south over the next several days.
/issued 327 PM CDT SAT OCT 15 2016/ (Tonight and Sunday) Latest satellite and analysis shows weak ridging aloft over central and east Texas, with a strong upper low moving into northern California. Strong southwest flow aloft is developing over west Texas as the upper low moves inland over the west coast. lee trough has strengthened over far west Texas, bringing stronger surface winds and breezy conditions to west central Texas today. Unseasonably Warm and sunny weather expected again tomorrow with highs climbing into the lower 90s.
Late evening surface analysis depicts strong high pressure (1029 millibars) extending from the New England coast southward to the Carolinas.
Winds will continue to ease tonight as a low pressure system moves farther north into British Colummbia.
1019 PM EDT Sat Oct 15 2016 With high pressure centered east of the area, southerly winds will bring warmer air into the region over the next few days.
Widespread stratus was slow to erode again today but given low level warm air advection, temperatures quickly rose into the low 80s with only a few breaks in the clouds.
732 PM EDT Sat Oct 15 2016 High pressure centered over New England will drift south over the next several days.
Weak high pressure overhead will shift east tonight with an increased pressure gradient developing across the state. Expect a brief period of stronger Coteau downslope winds with the shift to south-westerlies as the low moves over eastern North Dakota Sunday night, but this would last an hour or two before winds continue to round to the northwest.
Closed upper low currently spinning over northeastern Alabama will work into northwest Georgia in the overnight. Expect low's tonight to be down in the lower 60's with upper 50's along the plateau. Closed upper low has moved into the far northwest corner of Georgia based on lastest RAP40 run.
Easterly low level flow continues across the region this evening with high pressure still centered across the Mid Atlantic. Aloft, the upper level trough is now moving over the region with southwesterly flow aloft. The 00 UTC KTAE sounding does show some cooling aloft over the last 12 hours, so this along with some weak lift ahead of the approaching trough should keep the scattered activity ongoing even past midnight.
1209 AM EDT Sun Oct 16 2016 High pressure will maintain dry weather tonight before a weak disturbance returns shower chances for later Sunday and Sunday night. Much warmer temperatures are expected to start the week. A sufficient pressure gradient and increasing winds in the boundary layer should keep temperatures much warmer than recent nights, with readings around 10 degrees above seasonal levels.
Shower coverage has increased this evening ahead of a cold front, currently located in Central Oregon. The cold front will move through the area overnight, with showers diminishing behind the front.
729 PM CDT Sat Oct 15 2016 Potent low pressure system across the Pacific NW today with quasi- zonal to slight SW flow across the high plains. Unseasonably warm conditions continue as the low lifts into Canada with southwest flow continuing across the region.
913 PM EDT Sat Oct 15 2016 High pressure will maintain dry weather tonight before a weak disturbance returns shower chances for later Sunday and Sunday night. Much warmer temperatures are expected to start the week.
Waco stratus should start out in the IFR category, before rising into the low MVFR by 13z Sunday, then into VFR by 17-18z Sunday with clouds scattering in the afternoon.
High pressure will return for the latter half of the week. Unseasonably mild southwest flow is over the CWA this eve downstream from a broad upper trof that continues to cover much of the Gulf of Alaska. The next in the series of short waves to eject out of the main trof is moving inland thru the PacNW states heading towards the nrn Rockies. This wave passes to our north Sun morning but does push its associated cold front into nrn UT south to about Provo with the best chance of rain from about OGD north. This next wave brings a good portion of the colder air with the main trof inland with it pushing into UT after midnight with fairly widespread precip across the nrn CWA. A cold front will cross the airfield between about 14-16z switching winds to northerly.
842 PM CDT Sat Oct 15 2016 An upper trof is now moving into wrn AL with most of the cloud cover associated with the trof east of I65. Not to confident that this trof will produce any pcpn over the TN valley overnight, due to a fairly dry atmosphere as shown by the 00z u/a soundings from BMX and OHX. After lows "only" in the lower 60s tonight, high temperatures Sunday afternoon should warm into the lower 80s.