Aikyam-Lab/Synoptic-Bench huggingface dataset:
231 PM EDT MON AUG 15 2016 Aloft - TUTT feature was south of the central Gulf coast while mid level ridging over the western Atlantic reached across the southeast U. Surface - High pressure over the Atlantic extended west. to the lower Mississippi valley. The TUTT feature will dissipate by this evening while the upper ridge strengthens slightly and nudges west-southwestward. The Atlantic high pressures remains stretched westward to the lower Mississippi valley. Temperatures will be on the warm side of normal for the lows while highs stay close to normal. Deep layered ridging from the Atlantic extending west-southwest across the mid Atlantic coast and into the deep south will remain in place through the end of the week with an east-southeast wind flow continuing across the forecast area.
Cumulus cloud streets are developing across the area this morning in southerly flow around the western side of a deep layer ridge over the Atlantic. Convection is expected to be more isolated in nature for east-central and northeast Central Alabama, due to dewpoints mixing out into the upper 60s and large-scale subsidence due to the ridge.
water vapor imagery does show ridging over the sern CONUS trying to push some drier air this way and latest short-range high-res models are picking up on this with most convection staying over the nrn/wrn areas.
313 PM CDT MON AUG 15 2016 Upper low currently over the central Great Plains will move eastward across the forecast area overnight. Low temperatures tonight will once again fall into the lower to middle 60s.
Dewpoint temperatures are holding steady in the mid to upper 60s this afternoon as a pool of moisture associated with low pressure tracking from IL to southern MI slides across southern WI. High clouds associated with this low will help to limit the dense fog potential tonight due to radiation. The main area of moderate to heavy rain will stay to the southeast of the WI border, closer to the center of the low, nose of the low level jet and location of the upper trough.
Shower and thunderstorm activity will favor the higher terrain. The combination of moderate instability and moisture has led to afternoon thunderstorms remaining confined primarily to the higher terrain. Isolated to scattered thunderstorms are forecast to develop again over the higher terrain of northern AZ between 18z-24z Tue.
, as the boundary washes out and the low level flow turns to more westerly vs southerly with time. Medium range (for obvious scale resolution reasons) and some higher resolution guidance still having issues dealing with the handling of the closed low to middle level circulation in Arkansas, the definite cyclonic circulation in the northeast Gulf of Mexico (near FL) and the OK/TX Panhandle low that developed from the easter CO over the weekend. The interaction of this circulation with the OK/TX panhandle low/trough does impact the coverage of PoPs/Weather across the WFO PAH forecast area through the latter part of the week. Basically the mean low amplitude trough axis over the northern U.
At mid morning, Mid Tn continued to be on the fringe of a strong Atlantic ridge, with an axis of deep moisture remaining to our west across the Ms Valley and up to the Great Lakes.
A weak upper level low pressure system will move into the western Great Basin today. A second upper low will follow the first and impact the region during middle and latter portions of the week.
621 PM EDT MON AUG 15 2016 Weak high pressure will build over the area tonight and Tuesday.
249 PM EDT MON AUG 15 2016 The weather pattern over GA remains under the influence of a southerly flow aloft due to an upper trough just west of the MS river valley and an upper high centered over Bermuda. SBCAPE will remain in the 1500-2000 J/kg with max temps a few degrees above normal in the low to mid 90s.
1219 PM CDT MON AUG 15 2016 A weak trough of low pressure is slowly progressing eastward across northwest North Dakota this afternoon. High pressure will move in Tuesday and keep the weather mild and dry.
Activity should diminish after sunset, with perhaps the highest chances in the northwest based on the activity currently in the southwest. Lows will be in the low 70s. 32/Davis Will maintain only 30 POPs for Tuesday with the western side of an elongated Bermuda Ridge over the forecast area.
106 PM EDT MON AUG 15 2016 Offshore high pressure/inland trough pattern will continue over the area through the middle of the week.
Conditions will become more humid with lows tonight in the upper 60s/lower 70s and highs Tuesday in the lower 80s. with isold convection still possible after midnight due to weak low level trough extending SW to NE over the forecast area.
Warmer and drier conditions will return to the area for the next few days, as upper-level ridging builds over the West Coast.
401 PM MDT MON MAY 16 2016 Wet, dreary weather continues through the short term as an upper level low spinning over northern Nevada moves south into the Great Basin. However, this low will not track through the forecast area.
314 PM EDT MON MAY 16 2016 A mid level trough extends over the Great lakes from a large upper low over eastern Canada. The associated cold front across north central lower Michigan will slowly push south to near the Ohio border by morning. As the actually front comes through, showers will likely develop and increase a bit in coverage as strung out pva rotating through the mid level trough adds some vertical support. Behind this front large high pressure will bring clear skies.
328 PM CDT MON MAY 16 2016 Showers over the E half of the CWA will continue to sink S near the weak cold front through the late afternoon hours.
Surface analysis indicates retreating warm front currently north of the region with most locations experiencing east to southeast winds with sufficient moisture recovery suggested by dewpoints in the low to mid 60s south of interstate 20.
147 PM EDT MON MAY 16 2016 Aviation Another cold front dropping south from Canada will bring scattered showers and isolated thunderstorms this afternoon and tonight. High pressure will build in on Tuesday and will be over the region the rest of the week. Still expecting an increase in coverage of the pcpn into mid/late afternoon as a cold front moves into the area. Guidance shows a rather pronounced h8 thermal ridge of 6C nosing in by 18z, sinking slowly south with time this afternoon and tonight. Better risk of frost exists Tuesday night as the high builds in.
204 PM EDT MON MAY 16 2016 Hydro Another cold front dropping south from Canada will bring scattered showers and isolated thunderstorms this afternoon and tonight. High pressure will build in on Tuesday and will be over the region the rest of the week. Still expecting an increase in coverage of the pcpn into mid/late afternoon as a cold front moves into the area. Guidance shows a rather pronounced h8 thermal ridge of 6C nosing in by 18z, sinking slowly south with time this afternoon and tonight. Better risk of frost exists Tuesday night as the high builds in.
700 PM EDT MON MAY 16 2016 High pressure over the area will move offshore tonight.
In addition, a pretty good seabreeze is moving inland across the Low Country. Have the highest pops in the southern portion of the CWFA.
254 PM PDT MON MAY 16 2016 A high pressure ridge will bring warm and dry weather to the region on Tuesday.
227 PM MDT MON MAY 16 2016 The upper low over southwest Idaho this afternoon moves south over far southern Nevada between now and Tuesday afternoon. In advance of the low center, a series of short wave troughs eject out of the low and move east of the Rockies. The main short wave trough between now and Tuesday afternoon moves through the central high plains region between 21Z and 03Z this afternoon and evening. High pressure at the surface pushes further south into the central plains and central high plains region through the day on Tuesday, which will begin to dry out the nearly saturated layers below 700mb mainly in the northern and eastern sections of the forecast area.
145 PM EDT MON MAY 16 2016 High pressure over the upper Ohio Valley will move off the mid Atlantic coast today. This will allow a weak cold front to push south across the forecast area Tuesday.
315 PM CDT MON MAY 16 2016 High pressure over south central Canada will shift into the Northern Plains and Upper Midwest tonight and Tuesday. A lake breeze will likely develop, so areas near Lake Superior will be a bit cooler than inland areas. Highs should range from the middle 50s to around 60 near Lake Superior, to the low to middle 60s inland.
254 PM CDT MON MAY 16 2016 Afternoon surface analysis depicts a warm front draped from extreme SE CO/SW KS southeastward into parts of E OK.
156 PM EDT MON MAY 16 2016 High pressure will move across the region today, providing dry weather and cool temperatures. A low pressure system will move into the region tonight into Tuesday, bringing rain showers to the area. Prev Discussion-> Northwest flow aloft has develop across the Ohio valley in between departing upper low over New England and next trof over southern Canada. Temperatures will be a ltl warmer than yda but will still be around 10 degrees below normal, with highs generally in the lower and middle 60s. Favorable lift will push off to the east Tuesday night with inverted trof as aforementioned upper level trof settles into the Great Lakes.
623 PM EDT MON MAY 16 2016 High pressure will provide dry conditions through tonight. The upper ridge over the Great Lakes is progged to flatten and set up a surface boundary across the Mid-Atlantic tonight. Meanwhile across the north, a weak cold front is expected to sag southward as the ridge flattens. Expect temperatures to be cooler than average tonight but much warmer than last night due to warm advection and increasing clouds. Moisture is forecast to increase via southwest flow while the weak cold front will slowly progress southward driven by the upper weak trough.
307 PM CDT MON MAY 16 2016 18z surface data has a cold front from southern Minnesota into southern Wisconsin. High pressure ran from the Ohio Valley into northeast Nebraska. Some isolated showers may get into the highway 20 corridor late this afternoon. This evening, showers should continue in the highway 20 corridor.
156 PM EDT MON MAY 16 2016 High pressure will build over the region for the remainder of today. Increasing moisture will head our way late tonight and Tuesday ahead of a cold front that will drop out of the Gr Lakes.
403 PM EDT MON MAY 16 2016 Moisture will increase overnight as a warm front lifts north across the area.
A warm front to our southwest will approach the region later this evening.
High pressure at the lower levels and mostly zonal flow aloft will continue through the evening.
A low pressure system moving south through the western states will bring showers and thunderstorms to northern Arizona starting this afternoon.
305 PM EDT MON MAY 16 2016 Chances of rain showers will increase tonight into Tuesday as a weak cold front drops southward into the region. Rain shower chances will diminish by Tuesday evening as a ridge of high pressure begins to build in from the northwest.
1251 PM MDT MON MAY 16 2016 The upper low over southwest Idaho this afternoon moves south over far southern Nevada between now and Tuesday afternoon. In advance of the low center, a series of short wave troughs eject out of the low and move east of the Rockies. The main short wave trough between now and Tuesday afternoon moves through the central high plains region between 21Z and 03Z this afternoon and evening. High pressure at the surface pushes further south into the central plains and central high plains region through the day on Tuesday, which will begin to dry out the nearly saturated layers below 700mb mainly in the northern and eastern sections of the forecast area.
127 PM PDT MON MAY 16 2016 A low pressure system near the Great Basin will continue to create a deep marine layer with extensive night and morning low clouds and patchy drizzle over the coast, valleys and coastal foothills and slopes through Tuesday.
248 PM EDT MON MAY 16 2016 High pressure will provide dry conditions through tonight. The upper ridge over the Great Lakes is progged to flatten and set up a surface boundary across the Mid-Atlantic tonight. Meanwhile across the north, a weak cold front is expected to sag southward as the ridge flattens. Expect temperatures to be cooler than average tonight but much warmer than last night due to warm advection and increasing clouds. Moisture is forecast to increase via southwest flow while the weak cold front will slowly progress southward driven by the upper weak trough.
1052 AM PDT MON MAY 16 2016 Scattered showers will linger over the southern Idaho Panhandle Monday before high pressure brings a dry and warm day to the entire region Tuesday.
415 PM EDT MON MAY 16 2016 High pressure over the area will move offshore tonight.
642 PM EDT MON MAY 16 2016 A ridge of high pressure will remain over the region through this evening. Increasing moisture will head our way late tonight and Tuesday ahead of a cold front that will drop out of the Gr Lakes.
This low level forcing shifts east as the morning wears on. High pressure then builds in from the northwest Tuesday. Both models moving toward a more amplified upper level ridge compared to a few days ago. bringing this stronger ridge axis over the region toward the end of the weekend. Behind a weak cold front, winds will shift to the north/northeast and skies will clear tonight as weak high pressure builds in.
Warmer each day with high temperatures reaching back into the 70s towards the end of the work week. Only expecting the northwoods to fall below freezing tonight with 30s every place else. The chilly area of low pressure which brought wet and wintry weather at the beginning of the week will continue moving away to the northeast through the mid week period as the air modifies.
Meanwhile at the surface, high pressure over the eastern U. Overall severe threat looks low as the models do indicate that the cooler mid level temperatures will be moving across the region during the morning hours, but could still see a few strong storms with gusty winds up to 40 mph and some small hail.
On Tuesday, the weather pattern is expected to become much more active as an upper level trough approaches from the west. In addition, a cold front will be moving southward through west central Texas in the afternoon. As the cold front moves southward into the Hill Country during the late afternoon and early evening hours, thunderstorms will likely develop along this boundary. Convection along and behind the cold front will push this boundary southward through the evening and this will spark additional thunderstorms across the Interstate 35 corridor.
Weakening sfc trof aligned nw to se from the Keweenaw into the eastern fcst area for a time should be a focus for some isold -shra. With skies becoming clear to partly cloudy and with winds becoming light, leaned toward the lower side of guidance for mins tonight. Traditional cold spots could certainly drop into the upper 20s, but in general, expect mins in the low to mid 30s.
655 PM EDT MON MAY 16 2016 Moisture starved cold front will drift southward Tonight, which will continue to serve as a focus to generate light showers through the night, but clearing MBS early this evening. A mid level trough extends over the Great lakes from a large upper low over eastern Canada. The associated cold front across north central lower Michigan will slowly push south to near the Ohio border by morning. As the actually front comes through, showers will likely develop and increase a bit in coverage as strung out pva rotating through the mid level trough adds some vertical support. Behind this front large high pressure will bring clear skies.
COLD FRONT WILL THEN ENTER THE REGION TUESDAY BRINGING LOW CLOUDS BACK AROUND OR AFTER 18Z FOR KLBB/KPVW. Furthermore, the low level jet will be supplemented by lift from a cold front moving southward. The cold front will continue south of the area early Tuesday with low level instability axis hugging southern areas perhaps able to contribute into thunder chances building westward.
Low pressure disturbance over Southwestern Idaho this afternoon will drop southward into Nevada and Utah tonight. Moist air and scattered showers continue to rotate around the low with just enough breaks in cloud cover to permit some destabilization this afternoon.
Another upper impulse now swinging through the southern Rockies will pull an inverted surface trof northward out of the Tennessee Valley, allowing temps to climb to around 70 along the KY/TN border, but most locations will struggle just to get into the upper 50s Tue afternoon.
A cold front will also move across the area tonight into Tuesday causing winds to shift towards the north. A mesosystem, which moved out of the high plains overnight, continues to track across northern OK this late this morning. Also lowered PoPs slightly for this afternoon south of I40 as the warm front continues to lift northward.
441 PM EDT MON MAY 16 2016 A low pressure system will bring rain showers to the region tonight into Tuesday.
A wet and cool day is in store as a low pressure area propagates off the rockies onto the plains. East winds will be the norm through the day and tonight as low pressure moves to the south of the area. Aloft: The mean longwave trof will be over the Wrn USA this week. the low currently moving into the Gulf of AK will crest the E Pac ridge and dive into the Wrn USA trof Thu-Fri. A ridge will develop over the Plains between these systems Sat. The flow will become SW next Sun as the ridge departs into the MS Valley. Tue: The 700 mb trof will drop S. Temps turn warmer than normal Sun. An area of low pressure will hold MVFR to IFR ceilings over the TAF sites through the TAF period.
551 PM CDT MON MAY 16 2016 Weak cold front working through the area leading to isolated showers and storms along and east of the james river valley. As high pressure nudges eastward Tuesday night, clear skies and very light winds will allow for one more radiational night. Therefore trended lows once again toward the cooler guidance values such as MOS and some raw bias corrected readings.
High pressure will slowly build over the northern Rockies tonight into Tuesday with the air mass gradually drying.
206 PM EDT MON MAY 16 2016 High pressure slides east as a warm frontal boundary lifts north.
1142 AM MDT MON MAY 16 2016 Updated forecast to diminish possibility and coverage of precipitation across the forecast area this morning as the initial short wave trough lifts out of the forecast area. Precipitation ramps up again this afternoon as the next short wave trough lifts out of the low over the southwest U.
349 PM CDT MON MAY 16 2016 Weak cold front working through the area leading to isolated showers and storms along and east of the james river valley. As high pressure nudges eastward Tuesday night, clear skies and very light winds will allow for one more radiational night. Therefore trended lows once again toward the cooler guidance values such as MOS and some raw bias corrected readings.
At 2 PM MDT upper low was still over our CWA. Main showers and isolated thunderstorms were in the Boise Mountains, drifting westward, indicating the upper low center was in south- central Idaho.
Upper level low over the Great Basin continues to circulate low clouds and isolated/scattered light showers south and west of a KGTF to KBIL line this morning. Large upper level low continues to stream moisture into central MT. This looks to be the furthest north this precip will get this morning as the upper low dives SE into ID and WY. a ridge of high pressure will enter into eastern MT from Canada. and push the remnant moisture from this low back south. north and central MT should see overcast skies give way to partly clear skies and the return of near normal temps in the low to mid 60s. Dry air from the mentioned high pressure system begins to bring mainly clear skies across the high plains of MT.
The downslope component should keep the low levels dry until at least midnight. With weak isentropic upglide overnight in the wake of a warm front, light rain may occur generally over NE TN and SW VA.
1045 AM PDT MON MAY 16 2016 Updated Aviation Discussion The low will bring the marine layer and near normal temperatures into Tuesday with a slight chance of showers and thunderstorms in the mountains and deserts Tuesday afternoon.
Warmer and drier conditions will return to the area for the next few days as an upper-level ridge builds over the West Coast.
352 PM CDT MON MAY 16 2016 (Tonight and Tomorrow) An upper trough will dominate the western CONUS through tomorrow with its closed upper low sinking south from southern Nevada to the southern California/southern Arizona border area by late tomorrow. A cold front over the Panhandle tonight will move south during the day tomorrow with the GFS and NAM differing about 6 hours in its speed. The NAM has the cold front just south of I-20 around noon with the GFS having the cold front yet to make it into the northern Big Country. Lows tonight will be in the mid 60s across all of the forecast area with highs tomorrow reflecting the position of the cold front, with mid to upper 70s over the northern half of the CWA and lower to mid 80s over the southern half of the CWA.
418 PM EDT MON MAY 16 2016 High pressure slides east as a warm frontal boundary lifts north.
301 PM PDT MON MAY 16 2016 A few showers are expected this evening across Northwest Nevada as low pressure slowly pulls away.
359 PM EDT MON MAY 16 2016 High pressure will build over the region for the remainder of today. Increasing moisture will head our way late tonight and Tuesday ahead of a cold front that will drop out of the Gr Lakes.
442 PM EDT MON MAY 16 2016 A ridge of high pressure will remain over the region through this evening. Increasing moisture will head our way late tonight and Tuesday ahead of a cold front that will drop out of the Gr Lakes.
209 PM PDT MON MAY 16 2016 The low will bring the marine layer and near normal temperatures into Tuesday with a slight chance of showers and thunderstorms in the mountains and deserts Tuesday afternoon.
As this occurs, a cold front will also begin to sag south into the Min-South and leave us between these two features.
327 PM CDT MON MAY 16 2016 Elongated upper level low spinning over the Great Basin into Colorado is evident on WV imagery with an area of subsidence moving in to the the western part of the CWFA. As the MCS propagates southeastward, a cold front will push into the region overnight.
At the surface, low pressure is centered over northeast NM/SE CO with a warm front extending from SW KS and into north central OK. Better chances for TSRA will reside across south central and southeast Kansas with the lower prevailing CIGS and VSBYS in fog and drizzle along the I-70 corridor.
622 PM EDT MON MAY 16 2016 Moisture will increase overnight as a warm front lifts north across the area.
Moisture will increase overnight as a warm front lifts north across the area.
251 PM CDT MON MAY 16 2016 The cold front continues to make good southward progress across the area and was along the Iowa/Minnesota border into southwest Wisconsin early this afternoon. A large area of high pressure builds in from Canada and then remains over the Upper Midwest/Great Lakes region.
333 AM CDT Mon Apr 10 2017 In the near term, the main focus will be the potential for continued shower/thunderstorm activity along and just behind a southeastward moving cold front. A few isolated showers and storms will remain possible along the front especially east of Highway 65 over the next few hours, then will end as the cold front settles south of the region. Cooler temperatures and drier air will gradually sink into the region, but as the parent upper low lifts northeastward today, the coldest air will deliver only a glancing blow to our north- western CWA, and temperatures may still reach the low to even mid 70s south of the Missouri River where winds will be more westerly and cold-air advection will be weak.