Aikyam-Lab/Synoptic-Bench huggingface dataset:
1146 AM CST Sun Nov 13 2016 High pressure continues in control of our Mid-State weather, producing dry conditions, light winds, and seasonably cool temperatures today. Sfc ridging influences along with an unorganized but dry upper level flow pattern will result in VFR/SKC conditions thru 14/12Z.
A weak area of low pressure was developing in the coastal waters this morning, with a front draped across north central Florida. Cloud cover and northerly winds around the developing low pressure will keep temperatures in the upper 50s to lower 60s across northern portions of southeast Georgia. Clouds will scatter out from south to north as the low moves slowly to the north and northeast, and temperatures will rise into the lower 70s along the I-10 corridor and around 80 across north central Florida.
1138 AM CST Sun Nov 13 2016 High pressure will continue over the area today before moving east of the area tonight and Monday. Expect temperatures to climb into the lower to mid 60s today with abundant sunshine. Resulting clear skies and light surface winds have produced temperatures in firmly in the low to mid 30s across the state early this morning, with many locations already having reached the freezing mark. Aloft, a weak disturbance west of Arkansas will shift east over the state today in response to a stronger trough beginning to drop south from Canada into the plains tonight. 00" during the day Monday in the highest spots, which is not very high especially given that the region is in ongoing drought status.
230 PM EST Sun Nov 13 2016 High pressure will maintain dry weather ahead of a mid week front. No major changes were needed for the near term forecast as decoupled surface wind and a dry airmass under high pressure will support another cool night. Forecast lows are about 5 degrees below average, but a few degrees warmer than this mornings lows at most locations.
247 PM EST Sun Nov 13 2016 High pressure will remain to our south tonight and Monday then move away to the east Monday night.
/issued 407 AM CST Sun Nov 13 2016/ SHORT TERM (Now through Monday): The H5 trough continues to moves eastward this morning, currently centered in the southwest corner of Oklahoma. WV imagery shows the continued plume of moisture drawing northward ahead of the trough across south Texas. Once the H5 trough moves east of Oklahoma, the midlevel flow will turn more westerly, deflecting the deeper moisture plume further into the Gulf away from south Texas. Temperatures today will again hold in the low to mid 70s under cloudy skies and patchy light rain.
Weak high pressure will bring dry conditions today.
426 PM EST Sun Nov 13 2016 High pressure will result in another night with clear skies and cool temperatures by morning.
1250 PM EST Sun Nov 13 2016 High pressure will bring fair weather to the region to start off the new week, with temperatures warming into the 50s. High pressure nosing into the northeastern U.
1103 AM EST Sun Nov 13 2016 High pressure will pass south of the region through tonight.
So with ample sunshine and decent boundary layer mixing, expect warmer temperatures today with highs in mid 60s for much of the area. Thus expect lows will probably hold in the lower 40s. By Monday morning, a mid-level trough will be skimming eastward across the Northern Plains, with a weak surface cold front tracking across eastern Kansas. Dry conditions and a warming trend are expected through the middle of the week as a broad mid-level ridge slides into the central U.
210 PM CST Sun Nov 13 2016 The theme of cloudless cold fronts this November continues today, with a front at 3pm from southwest MN into the Arrowhead that is so starved from moisture, it isn't even able to produce cloud cover. Though this first cold front lacks much cold air or cloud cover, there is a second one dropping south across Canada this afternoon that bears a slightly different story.
1102 AM EST Sun Nov 13 2016 Low pressure will remain near the Georgia and South Carolina coasts through tonight. The low will begin to lift northeast of the area Monday.
1034 AM MST Sun Nov 13 2016 Water vapor shows upper trof moving through the nrn Rockies into the nrn plains with upper ridge rebuilding into the pac nw. Upper ridge will then quickly rebuild through the nrn Rockies into the nrn plains on Monday, for continued dry wx and highs into the 60s.
1237 PM EST Sun Nov 13 2016 Low pressure will remain near the Georgia and South Carolina coasts through tonight. The low will begin to lift northeast of the area Monday.
904 AM EST Sun Nov 13 2016 High pressure will pass south of the region through tonight.
Tonight Through Monday Winds aloft will increase as A weak pacific low pressure trough moves across southern Alberta and southern Saskatchewan and Montana brushing northern Wyoming. Monday Night Through Sunday As showers move into the northwest mountains and a cold front moves south across the north.
209 PM CST Sun Nov 13 2016 Our amazing streak of late fall weather continues out the window currently, with nearly full sunshine beneath upper level ridging and temperatures responding nicely thanks to decent mixing to around 900mb up into the 50s and lower 60s.
1126 AM CST Sun Nov 13 2016 The region remains in a weak omega block pattern this morning as a closed upper low begins to fill over central Oklahoma and troughing lifts northeastward. The ridge axis just downstream over much of our region will continue to be the main influence on our weather today as southwest flow aloft continues to supply mid and high clouds over much of the area. High pressure at the surface will continue to drift southeast, and light winds will veer slightly to the east and southeast with time. /issued 514 AM CST Sun Nov 13 2016/ High pressure across the region to maintain VFR conditions through the terminal forecast period.
245 PM CST Sun Nov 13 2016 WV imagery shows the exiting upper trough now over NE OK/SE KS, leaving West Texas and Southeast New Mexico under dry, NW flow aloft. Subsidence on the back side of the trough has allowed skies to finally clear out, allowing afternoon temps to climb to above- normal in SW sfc flow. NW flow aloft will transition to meridional over the next couple of days, w/a weak trough/front moving thru the area late tonight and Monday.
323 PM EST Sun Nov 13 2016 A decrease in amplitude to the North American upper level blocking ridge is ongoing this afternoon. The last of the ridge axis is forecasted to roll east of the central Great Lakes this evening.
1208 PM EST Sun Nov 13 2016 A large area of high pressure over the Ohio Valley will gradually shift southeast and weaken tonight into Monday.
upper low drifts out to the Carolina Piedmont through the period taking what little cloud cover it generated with it. Flight condition would normally be vfr under these circumstances but smoke from the numerous forest fires over the higher Cumberland Plateau and Smoky Mountain terrain will reduce visibility to mvfr and even ifr categories at times at both tys and cha; especially during the overnight hours as the nocturnal inversion strengthens.
A passing trough may bring some mid to high level clouds tomorrow, but otherwise skies will remain mostly clear. Still looks like a period of low level wind shear is possible the first half of tonight with the low level jet overhead. West to southwest winds will be gusty through this evening due to a tight pressure gradient between high pressure to the south and an approaching trough. A tightening pressure gradient ahead of an approaching trough of low pressure from the north will bring breezy southwest winds to the area today. The model soundings are very dry, with only some high based clouds arriving with the trough.
312 PM EST Sun Nov 13 2016 Dry, mild weather will continue through Monday, thanks to a large area of high pressure over the eastern states.
Mostly clear skies overnight with cooler air behind the front will bring overnight lows into the 30s. For Monday a building upper level ridge and increasing subsidence will help to bring mostly clear skies during the morning hours with some increasing clouds by the afternoon with some moisture under the ridge from a trough to the north.
Expect temperatures to climb into the lower to mid 60s today with abundant sunshine. Resulting clear skies and light surface winds have produced temperatures in firmly in the low to mid 30s across the state early this morning, with many locations already having reached the freezing mark. Aloft, a weak disturbance west of Arkansas will shift east over the state today in response to a stronger trough beginning to drop south from Canada into the plains tonight. 00" during the day Monday in the highest spots, which is not very high especially given that the region is in ongoing drought status.
While the SGF ASOS hasn't officially touched the freezing mark, mesonet sites across southern Greene County including south Springfield into Webster and Christian Counties have been reporting temperatures down between 30 and 32 as of 1:30 am. We will see another fantastic day with sunny skies and afternoon highs back in the lower 60s. Upper level ridging will develop over the central U.
An upper level ridge will then build into the state from the west through Mon.
1014 AM EST Sun Nov 13 2016 A large area of high pressure over the Ohio Valley will gradually shift southeast and weaken tonight into Monday.
High pressure continues in control of our Mid-State weather, producing dry conditions, light winds, and seasonably cool temperatures today. Ridge of high pressure expected to produce clear skies, light and variable surface winds, and VFR conditions through the forecast period.
847 AM EST Sun Nov 13 2016 A pressure ridge will extend through the Ohio River Valley today, directing cold air into the forecast area. An upper low will move over the area today, producing periods of light rain in many areas. This low will push east of the area by Monday, bringing a return to drier conditions. Upper low across northern Ga this morning will cutoff across the southeast. A closed upper low located west of the forecast area this evening will gradually open as it moves northeastward through early Monday. The GFS and ECMWF indicate surface ridging during much of the period with a cold front toward the end of the period.
(ISSUED 1138 AM CST Sun Nov 13 2016 ) High pressure will continue over the area today before moving east of the area tonight and Monday. Expect temperatures to climb into the lower to mid 60s today with abundant sunshine. Resulting clear skies and light surface winds have produced temperatures in firmly in the low to mid 30s across the state early this morning, with many locations already having reached the freezing mark. Aloft, a weak disturbance west of Arkansas will shift east over the state today in response to a stronger trough beginning to drop south from Canada into the plains tonight. 00" during the day Monday in the highest spots, which is not very high especially given that the region is in ongoing drought status.
215 PM EST Sun Nov 13 2016 As upper low now begins to shift east of the area. We still have 1018mb closed low off the GA coast which continues to spread moisture back inland but we also see that nose of high pressure has eased into the Atlanta metro allowing for moth lighter winds as well as less in the way of precipitation through the I85 corridor.
254 PM EST Sun Nov 13 2016 Canadian high pressure will persist over the region tonight. Low pressure will develop along the North Carolina coast Monday and pass by to our east Monday night.
Easterly winds were running 10-12 knots in the lowest 3000 ft with recent wind observations confirming good mixing below 4000 ft.
146 PM EST Sun Nov 13 2016 High pressure weakens today.
An upper level low can be seen on water vapor satellite imagery this afternoon over Central Oklahoma. As this low moves eastward into the Ohio River Valley Monday, a weak cold front will slide southeast into North and Central Texas.
1233 PM EST Sun Nov 13 2016 High pressure weakens today.
328 PM CST Sun Nov 13 2016 Tonight through Monday, continued dry with colder than normal temperatures again tonight followed by slightly warmer than normal temperatures again Monday. /22/ Upper level NW flow will develop over Lower Mississippi River Valley late Monday as upper level ridging takes place over the SW US.
211 PM EST Sun Nov 13 2016 High pressure will result in another night with clear skies and cool temperatures by morning.
1115 AM EST Sun Nov 13 2016 High pressure weakens today.
A weak cold front will follow late tonight turning winds northerly and bringing in slightly drier air to kick off the new week. Weak upper trough and associated cold front will slide across the area on Monday, but temperatures will continue to warm as there will be strong subsidence and drying.
Large scale ascent is prog to weaken/diminish this afternoon as mid level trough axis shifts east. but if skies begin to a little faster than expected this afternoon /especially W and NW counties/ then values may be a little warmer than forecast.
914 PM PDT TUE SEP 27 2016 A cool down will begin on Wednesday with much cooler temperatures by the end of the week as a weather system moves toward NorCal. Cooling off a little slower this evening but winds through the delta have slowly been increasing each hour and the delta is trending cooler this evening. A trough will gradually deepen the next few days to bring a cooling trend each day to the region. The delta breeze will be stronger each of the next several days to help with cooling as well as synoptic cooling that will occur each day from the trough.
1222 AM EDT Wed Sep 28 2016 An encroaching upper low will return rain to the Upper Ohio Region for the latter half of the week. The Great Lakes upper low is forecast to dig southward across the Mid, and Upper Ohio Valley for the latter half of the week.
Dewpoints are currently in the 40s across the area as sfc ridging extends from AR eastward across the mid state. Should see lows generally in the lower 50s by sunrise. Upper level support is evident as a deepening upper trough drops southward.
High pressure will maintain VFR conditions thru the period. Temperatures have dropped off into the 60s and low 70s this evening and will continue to drop into 50s overnight with a few isolated lower terrain valleys seeing temperatures a few degrees cooler than the general area.
Dew points continue to climb into the lower 40s over eastern ND and one area of clouds advecting in pretty far west and should keep GFK and FAR much milder tonight than advertised. Across the valley and NW MN conditions less certain with model RHs fields suggesting more clouds overnight and dewpoints have held in the low to mid 40s. Quiet fall weather is expected late this week through the weekend as the cut-off low continues to slowly meander towards the Ohio Valley and ridging remains over the north central US.
Closed 500 mb low/trough sinking southward across the northern Great Lakes early this afternoon. Area of showers firing in response to the closed/stacked low pressure system, with a strong bit of upper level energy having a large hand in its production. Despite the bulk of the forcing mechanisms having vacated the local area, the low level lapse remain favorable, there hints in the GFS/NAM of weak (~50 J/kg) of instability, and the proximity of the low (still close by) also support the small chances. The main concern for the beginning of this period is if the closed low will retrograde and affect the forecast area.
1128 PM EDT Tue Sep 27 2016 A cold front will move well offshore this evening. High pressure will gradually build into the region from the north late Wednesday and Wednesday night. The high will remain parked to our north while low pressure over the midwest drifts slowly north and east.
Model analysis shows the area is at the base of a mid and upper level trough, with the upper level diffluence pushed off to our east. However, the drier air in the lower troposphere, with 100-700mb average RH values potentially dropping below 70%, could inhibit cumulus line development. Since the guidance products do not always handle mesoscale features such as the cumulus line very well, will hold the low chance PoPs for tomorrow. FEW clouds based at around FL020 with light and variable winds will be the highlight of the forecast overnight resulting in VFR conditions at the Key West and Marathon Island terminals.
/issued 300 PM CDT TUE SEP 27 2016/ Early afternoon temperatures across the Midsouth range from the middle 70s to the lower 80s. Dew points are in the low to middle 40s. The exception will be in North Mississippi where the cooler air took longer to arrive. Expect morning lows around 7-10 degrees cooler in portions of North Mississippi. Most areas should drop into the low to middle 50s. A spoke of energy is expected to rotate around the cutoff low tomorrow into tomorrow night ushering in an associated cold front.
Dry high pressure will remain over the area with good radiational cooling and rapidly falling temps this evening. By late night, the axis of the ridge will lie across the southeast half of Middle TN, so that is where temps are mostly likely to dip into the mid to upper 40s with patches of fog. Forecast data has been updated to lower the low temp forecast a few degrees for the southeast half, and for low lying areas across the rest of the Mid State. A cold front approaches the area early Wednesday and passes each Mid-State terminal by the end of the forecast period.
The only tweaks were to adjust winds by trending toward the latest near term guidance which is handling the imminent cold frontal passage. Gilchrist Previous discussion: An upper ridge over Montana today will lean east tonight and allow for a cooler airmass to filter into the area. A dry cold front will drop south tonight across the CWA allowing for the cooler air to push in on Wednesday.
Will see a gusty WSW wind of 9-13 kts across northern and sections during the late morning and afternoon, developing in association with the previously mentioned cold frontal passage.
Due to the high pressure aloft, am not expecting any significant precip across the CWA except for over the coastal waters where isol. The mid to upper level ridge will be over the region through the forecast period.
1018 PM EDT Tue Sep 27 2016 Nearly stationary upper level low pressure over Lake Superior will continue to bring dry and seasonally warm conditions to the North Country through Wednesday.
With the front draped across central GA and upper level impulses rounding the trough set to the north, can not rule out schc thunderstorm through the next couple hours, especially I-20 and south. Some activity may continue to instigate along this weak trough with sufficient convergence, as seen along I-20/east Taliaferro. /Issued 323 PM EDT TUE SEP 27 2016/ Surface front is making its way across north and central Georgia this afternoon but the cooler/drier air is still a day away. A few showers and storms are popping up over the higher elevations of northeast GA where better low lvl forcing exists. Loss of heating after sunset will quickly diminish much of the convection as cooler/drier air begins to filter across our northwest GA counties overnight.
/issued 254 PM CDT TUE SEP 27 2016/ The southern High Plains will remain sandwiched between an anomalously cold closed low over the Great Lakes states and a deepening long wave trough off the west coast of North America.
Cold front has passed through the Great Falls area and will likely get as far as the Little Belts before getting hung up. Do not expect low clouds to make it much further south as the lower levels of the atmosphere are extremely dry as one goes south. A dry cold front will move across the area overnight.
Synoptic and hi-res models alike remain quite bullish on precip for Wednesday as the closed upper low dives into Indiana, and a vort lobe strong enough to have a surface reflection swings through the Ohio Valley. A deep 500mb closed low centered over the Great Lakes region this afternoon will sink south into the lower Ohio Valley through the short term period. A couple of vorticity lobes rotating around this upper low will bring some rain chances to the region through Wednesday night. With freezing levels around 8-9 kft, a few rumbles of thunder are possible. Lows tonight should be a bit warmer than last night in the lower to mid 50s.
526 PM MDT Tue Sep 27 2016 Deep closed low will remain in place over the great lakes with nw conus troughing ongoing. This will support mean ridging with associated waa over the northern plains under dry nw flow and no sig wx in the period. Rotating Fujiwara like impulse will support a weak backdoor cold front into the fa tonight.
634 PM CDT Tue Sep 27 2016 Closed 500 mb low/trough sinking southward across the northern Great Lakes early this afternoon. Area of showers firing in response to the closed/stacked low pressure system, with a strong bit of upper level energy having a large hand in its production. Despite the bulk of the forcing mechanisms having vacated the local area, the low level lapse remain favorable, there hints in the GFS/NAM of weak (~50 J/kg) of instability, and the proximity of the low (still close by) also support the small chances. The main concern for the beginning of this period is if the closed low will retrograde and affect the forecast area.
Temperatures have dropped off into the 60s and low 70s this evening and will continue to drop into 50s overnight with a few isolated lower terrain valleys seeing temperatures a few degrees cooler than the general area.
630 PM CDT TUE SEP 27 2016 Deep upper low continues to spin over the Great Lakes with ridging over the Great Basin into the Rockies. At the surface, high pressure is situated over the southern Plains. Upper low over the Great Lakes will sink south and will be situated over the Ohio Valley by Wed night. 850mb temps on Thu support highs struggling to get out of the low 70s.
609 PM CDT TUE SEP 27 2016 No weather concerns in this period what so ever as a massive high pressure ridge dominates the weather map. The only interesting thing would be a backdoor cold front that will spread a reinforcing shot of cool air over the region on Wednesday. Temperatures on Wednesday will be about 10 degrees cooler than today.
With the front draped across central GA and upper level impulses rounding the trough set to the north, can not rule out schc thunderstorm through the next couple hours, especially I-85 and south. Some activity may continue to instigate along this weak trough with sufficient convergence, as seen along I-20/east Taliaferro. /Issued 323 PM EDT TUE SEP 27 2016/ Surface front is making its way across north and central Georgia this afternoon but the cooler/drier air is still a day away. A few showers and storms are popping up over the higher elevations of northeast GA where better low lvl forcing exists. Loss of heating after sunset will quickly diminish much of the convection as cooler/drier air begins to filter across our northwest GA counties overnight.
Some activity may continue to instigate along this weak trough with sufficient convergence, as seen along I-20/east Taliaferro. /Issued 323 PM EDT TUE SEP 27 2016/ Surface front is making its way across north and central Georgia this afternoon but the cooler/drier air is still a day away. A few showers and storms are popping up over the higher elevations of northeast GA where better low lvl forcing exists. Loss of heating after sunset will quickly diminish much of the convection as cooler/drier air begins to filter across our northwest GA counties overnight.