Aikyam-Lab/Synoptic-Bench huggingface dataset:
After a cold morning with areas of frost and freezing temperatures, expect a quick warm-up with highs reaching the upper 70s to low 80s across the Snake Plain today. Further warming is expected for Sunday, with highs at least a couple of degrees warmer than what is forecast for today. As we head through the day Sunday, a trough will be approaching from the northwest along with an attendant cold front.
they show a trough digging into the Pacific Northwest Sunday. with zonal flow over colorado and a lee trough in eastern Colorado.
336 AM CDT SAT SEP 10 2016 Cold front extending from northern IN southwest to just northwest of STL to just southeast of SGF will continue moving southeastward through the rest of the forecast area this morning as the upper level trough over the northern Plains moves eastward into the Great Lakes region. Despite a clearing sky later this morning and afternoon, high temperatures will be cooler than yesterday due to the low level cold air advection behind the cold front.
Deep layer high pressure remains in control this afternoon, with dry and mostly clear conditions prevailing across the region. High pressure that is centered over the Southeast will weaken over the weekend as an upper level trough swings across the Great Lakes with the axis extending into the southeast. Expect highs each day to reach into the low to mid 90s which is slightly above normal for this time of year.
303 AM EDT Sat Sep 10 2016 A warm front will bring some showers to the region this morning, followed by a very warm, muggy, and mostly rain free afternoon. An incoming cold front will trigger another round of showers and thunderstorms tonight.
424 AM EDT SAT SEP 10 2016 Showers and thunderstorms are likely across the region again today ahead of a cold front that will usher in cooler and drier air for the second half of the weekend. It will remain humid into early afternoon but once the cold front passes and winds become northwest. Highs today will range from the middle 70s northwest to the lower 80s southeast. Attention now shifts to pcpn chances today as main northern stream trough approaches and pushes surface cold front through the area. Main cold front then follows early this afternoon with additional development of shra/tsra along it. Broad area of high pressure to move in Sunday with much drier and cooler air.
The upper ridge that has been dominating our weather will continue to shift east as an broad trough moves in. allowing a cold front to push through tonight. By late in the day a shower or thunderstorm may make it into the plateau as the trough/front move closer.
541 AM CDT SAT SEP 10 2016 Cold front extending from northern IN southwest to just northwest of STL to just southeast of SGF will continue moving southeastward through the rest of the forecast area this morning as the upper level trough over the northern Plains moves eastward into the Great Lakes region. Despite a clearing sky later this morning and afternoon, high temperatures will be cooler than yesterday due to the low level cold air advection behind the cold front.
Ridging in the southern U. Light to moderate rain still prevailed at the terminals around midnight, and will likely persist for another couple of hours before the upper level trough swings through and starts pushing the rain to the south and east early this morning.
639 AM EDT SAT SEP 10 2016 A cold front will sweep across the area this afternoon. High pressure will build in for the early part of the week.
The upper level ridging will weaken and shift to the south through Sunday morning. This will allow the tail end of a trough to push an associated surface front into northwest GA Saturday night. Piece of upper trough energy pushes a fairly weak cold front into the CWA to start things off Saturday night into Sunday.
627 AM EDT SAT SEP 10 2016 High pressure in the forecast area will weaken ahead of an approaching cold front.
303 AM CDT SAT SEP 10 2016 Fairly straight forward forecast today as high pressure remains centered across the Central Plains. With dry atmosphere and good mixing conditions, have sided closer towards warmer guidance, but with 0 standard deviation did not stray far from consensus. Tonight will see southerly winds increase as high pressure slides to the east. Lows will have a strong elevation component, and kept places that are more exposed along the Buffalo Ridge more mild. Sunday will be a warm and windy day day as weak upper level ridging builds into the area and a strong southerly surface pressure gradient develops.
425 AM EDT SAT SEP 10 2016 08Z water vapor and H4 RAP analysis shows the Florida Peninsula in between a ridge of upper level high pressure over the central Gulf of Mexico. and an upper low spinning to the east of the region. This amplification will bring a cooler airmass to the Great Lakes/High plains this weekend. and eventually our first cold front of the season will arrive. In the lower levels. high pressure resides just to the north of the region providing a synoptic easterly flow across the FL peninsula. and the low itself will be moving steadily away from our area through the weekend.
353 AM CDT SAT SEP 10 2016 A more typical onshore flow regime with Bermuda ridge extension in place at the surface. Meanwhile, a cold front in the Plains States will be advancing southeast but run into resistance and less upper support upon reaching the Gulf States tonight. Nonetheless, deep and persistent ridging over the eastern Gulf States should keep the system moving westward.
336 PM EDT Tue Oct 18 2016 A weak and dry cold front pushes south through the region Wednesday afternoon - still record warmth for Wednesday.
/issued 156 PM CDT Tue Oct 18 2016/ A cold front that pushed through this morning is currently stretched along the Pecos River. Temperatures ahead of the front range from the upper 80's to the mid 90's this afternoon while slightly cooler conditions have settled in behind the boundary. An UA trough will move across the West today and into the Plains Wednesday.
High pressure centered north of Bermuda extends west as a ridge axis into the Southeastern United States. This surface feature is well supported by a deep mid-upper level ridge complex centered over the northeastern Gulf of Mexico. A large expanse of dry and stable air prevails beneath the ridge complex, highlighted by loops of water vapor imagery. An upper level low to our east appears to have a spoke of vorticity rotating southwest through the northwestern Bahamas and South Florida. Temperatures across the island chain are in the mid 80s with dewpoints in the lower 70s.
At 20Z /2 PM MDT/ KCBX radar and area web cams showed convective buildups in Gem County, ID, and in the Owyhee Mountains, and lightning was detected near Owyhee, NV, as a secondary short wave trough moved into Idaho from Oregon. Scattered showers this evening then gradual clearing from the west overnight, and cooler. Mostly clear Wednesday and Wednesday night as a broad upper ridge comes in from the Pacific.
306 PM CDT Tue Oct 18 2016 The cold front is expected to enter the region late this evening, and then progress to near KCGI and KEVV before stalling out by morning. Backed flow ahead of the low, coupled with surface dewpoints in the upper 60s to near 70 degrees may support a few rotating updrafts and a decent chance at a few severe storms with damaging winds and large hail.
A cold front has pushed thru the NE OK sites and will likely stall over NW AR and SE OK later today and tonight. /Issued 1052 AM CDT Tue Oct 18 2016/ A cold front extends from near Joplin south and west across Eastern and South Central Oklahoma. Cold front was entering northeast OK and will stall across the region today. /Issued 345 AM CDT Tue Oct 18 2016/ Cold front was located near a line from KEMP-KPNC-KHBR per 08z sfc obs, with weakening pressure rises to the north over the past few hours. Overall progress of frontal boundary should remain limited over the next 48 hours, the net result today being high temps several degrees cooler across much of northeast OK and northwest AR, while areas to the south will once again see much above normal temperatures.
The Pacific jet stream to our south is beginning to amplify as ridging slowly builds up the Western US coast. As this trof pushes southeast, showers will overspread the region from west to east beginning tonight as jet-aided divergence crosses the forecast area overhead. The high elevations above 6000ft in the Beartooths and Big Horns will see 4-6 inches of snow through the morning with western facing slopes being the largest recipients of snow. Cloudy conditions will persist through the early afternoon before slowing clearing up from the west as the ridge begins to take hold over the area on Wednesday.
Deep-layer high pressure will remain in place over the southeastern states overnight. Otherwise, generally benign weather is expected with lows dropping into the lower 60s.
Cold front continues to slowly approach the region and that will increase low-level moisture tonight into Wednesday.
Cumulus clouds over the mtns (mainly N of Tahoe) will dissipate after dark to be followed by the high level cloudiness spreading over Norcal ahead of the upstream trof nearing 140W. This cloudiness will lift Nwd late Wed as high pressure builds during the next couple of days. Warmer daytime temps and cool overnight lows are expected the next couple of days as the airmass dries. Cooling should begin on Fri and into the weekend as the ridge shifts inland and the GOA/NErn Pac trof begins to deepen and the flow turns onshore.
The cold front is expected to enter the region late this evening, and then progress to near KCGI and KEVV before stalling out by morning. Backed flow ahead of the low, coupled with surface dewpoints in the upper 60s to near 70 degrees may support a few rotating updrafts and a decent chance at a few severe storms with damaging winds and large hail.
Issued by National Weather Service Wilmington NC 315 PM EDT Tue Oct 18 2016 Dry high pressure will continue across the region through the middle of the week.
213 PM EDT Tue Oct 18 2016 A cold front sinks into the area tonight, stalls and then returns back north later Wednesday.
A weak Pacific cold front will slide into the middle RGV shortly after sunrise Wed with a wind shift and speed increase. A cold front this morning will provide some cooling across the east.
115 PM EDT Tue Oct 18 2016 A cold front will progress southeast late this afternoon into the early evening with chance of showers associated with it. Winds behind the front will calm down and shift to the northwest allowing for overnight temperatures to drop down into the lower 50s.
243 PM EDT Tue Oct 18 2016 Warm and windy conditions today will give way to increasing rain chances tonight as a cold front moves over the region. A cold front will bring showers to much of the region tonight and Wednesday before it stalls near/just south of the I 70 corridor.
Low level flow will remain steady state at around 15KT whilst slowly backing from ENE to NE as the low taking shape north of Hispaniola slowly moves NE and then north.
342 PM CDT TUE OCT 18 2016 Most exciting thing happening during the short term is a weak cold front currently up across central NODAK into northern MN will work across the area tonight, exiting off to our southeast Wednesday morning. The passage of the cold front tonight will continue to chip away at temperatures/dewpoints, with h85 temps dropping from around +6C today to around +2C tomorrow.
One last storm system will cross northern Utah and southwest Wyoming through this evening before high pressure returns for the latter half of the week.
340 PM CDT Tue Oct 18 2016 A cold front was positioned from Southwest Texas through East Central Oklahoma and Northwest Arkansas and extended northeast through the Midwest and the Great Lakes Region this afternoon. This evening the cold front looks to drift a bit further southeast into Southeast Oklahoma and Northwest Arkansas before retreating back northwestward into Northeast Oklahoma late tonight. an increasing 20-40KT LLJ along the front over an expanding area of warm advection will allow for a slight chance of showers and thunderstorms mainly within the higher terrain locations of far Northwest Arkansas into far Northeast Oklahoma.
There is a slight chance that additional light rain may develop along the cold front sagging down across northern North Dakota. A cold front along the Canadian Border this morning will be pushing through the forecast area today. temperatures today will vary considerably from the mostly cloudy and behind the cold front areas of the north, to the South Dakota border counties where some sunshine will act to moderate the air.
540 PM EDT Tue Oct 18 2016 A weak and dry cold front pushes south through the region Wednesday afternoon - still record warmth for Wednesday.
313 PM CDT TUE OCT 18 2016 A couple more days of record to near-record warmth across central Alabama, before a change to cooler conditions. The stout upper level ridge across the southeast states will help provide the warmth and dry weather through Wednesday evening.
301 PM EDT Tue Oct 18 2016 A cold front will progress southeast late this afternoon into the early evening with chance of showers associated with it. Winds behind the front will calm down and shift to the northwest allowing for overnight temperatures to drop down into the lower 50s.
123 PM EDT Tue Oct 18 2016 An upper-level ridge will build across the area through Wednesday.
244 PM MDT Tue Oct 18 2016 Current surface analysis shows a nearly stationary cold front across northern MN, ND, and northern MT. Weak high pressure is centered to the southwest of the area. With clouds and pcpn around, temps will be cooler than today, with highs mostly in the 50s, some 40s over portions of northeast WY and the Black Hills. A little snow could mix in with rain over some areas Wednesday night before pcpn ends, especially over the Black Hills and the Pine Ridge.
1246 PM CDT Tue Oct 18 2016 H5 analysis from earlier tonight had an elongated area of high pressure extending from Baja California east northeast into the southeastern CONUS. North of this high pressure, a broad area of low amplitude flow extended from California east into the central plains, then northeast into the Great Lakes. At the surface, a cold front extended from the Texas panhandle northeast into far northwestern Missouri and central Iowa. For today: Much drier boundary layer air will be present across the region today as the before mentioned cold front continues to push south into the mid Mississippi valley.
400 PM EDT Tue Oct 18 2016 A cold front is pushing southeast across the Midwest and should reach the Ohio River by about dawn on Wednesday.
We're in for one more day of well above normal temperatures before a starkly cooler and drier airmass descends on North and Central Texas. A stationary front has been hanging out in the vicinity of Bowie to Breckenridge this afternoon. Otherwise, another warm and muggy night is on tap with increasing clouds towards sunrise as moisture is driven northward on the low level jet. The cold front looks to slide into the Metroplex overnight Wednesday, bringing a decent (but very quick) shot of showers and storms to the region.
256 PM CDT TUE OCT 18 2016 A cold front will continue to drift south over the forecast area this evening, with a band of lower clouds just ahead of it. Cooler air filtering in behind the boundary will result in overnight lows in the 50s north of the I-70 corridor. The cold front moving through central Illinois early this afternoon is expected to slow down as it becomes parallel to the upper level flow near the Ohio River Valley later tonight.
343 PM EDT Tue Oct 18 2016 A cold front across SE Lower Michigan will move across the forecast area tonight then stall near the Ohio river tomorrow.
301 PM CDT Tue Oct 18 2016 Cold front that slid through the region this morning has pushed to near the I-44 corridor where it will remain quasi-stationary overnight.
But then high pressure will briefly move in Wednesday, giving us a dry day with light winds.
Under this ridge enough subsidence to limit precipitation potential over southeast Georgia. On the southern end of the ridge, there is enough lift in the moist onshore flow to produce a few showers. The center of the ridge axis is expected to sink south across the region Tonight through Wednesday, which should keep the region dry for Wednesday. With the ridge sliding overhead Tonight, light winds and low level moisture will combine to produce fog, which could become locally dense. The short term will start with a squashed upper level ridge over the region, located in between an upper level trough digging across the middle of the region, and a sheared area of low pressure near the central Bahamas.
424 PM EDT Tue Oct 18 2016 Dry high pressure will continue across the region through the middle of the week.
Issued by National Weather Service Wilmington NC 145 PM EDT Tue Oct 18 2016 Dry high pressure will build across the area through the middle of the week.
/ISSUED 1032 AM CDT Tue Oct 18 2016/ Another warm/rain-free day on tap as the upper high lingers over the area. /ISSUED 457 AM CDT Tue Oct 18 2016/ Upper ridging planted over the state will provide continued dry (precipitation-wise) and very warm conditions for southeastern Texas today.
351 PM EDT Tue Oct 18 2016 Cold front sinks into the area tonight, stalls and returns back north Wednesday.
552 PM EDT Tue Oct 18 2016 Rain shower chances will increase this evening and overnight as a weak cold front crosses the area. That said, a decent moisture slug generally from 700 mb downward along with modest baroclinicity in the lower half of the troposphere should allow for the development and propagation of showers along the front as it translates southeastward through the night. Upper level forcing really never does manage to sag southeastward overnight with this low-level boundary.
1225 PM CDT TUE OCT 18 2016 A cold front was located from northern Missouri to southeast Kansas, to west-central oklahoma early this morning.
254 PM CDT TUE OCT 18 2016 Upper level trough will pass to our north on Wednesday as flow in West Texas remains more or less zonally oriented. Low level theta-e will continue to be relatively high for this area leading up to and through the evening until the cold front plows through.
A cold front should just be NW of our terminals by 18Z Wed. /issued 359 AM CDT TUE OCT 18 2016/ The cold front continues to make good southward progress this morning and was located along a Muleshoe, Plainview, to Paducah line as of 330 am CDT. This should result in a pleasant day across the area with highs generally 15 degrees cooler than we saw yesterday. Southerly flow across the western South Plains should keep the normal areas from cratering as well but would not be surprised to see a few areas approach the upper 30s to lower 40s in some of the low-lying/cold air drainage areas. Jordan Dry cyclonic flow kicks off the extended realm before buckling back to upper ridging complete with above normal warmth for the weekend.
356 PM CDT Tue Oct 18 2016 A large upper level ridge of high pressure will remain over the Mid South through Wednesday as low level southerly flow keeps unseasonably high dewpoints in place. Near record high temperatures will accompany the high dewpoints through Wednesday.
356 PM EDT Tue Oct 18 2016 A cold front will drop southeast into Ohio tonight, bringing an increasing chance for showers and thunderstorms.
A stronger cold front will move across the area Wednesday into Wednesday night as a trough moves across the Plains.
Expect a mix of sun and clouds by the afternoon under a weak ridge.
1205 PM CDT Tue Oct 18 2016 At 3 AM, a cold front extended from Green Bay Wisconsin to Des Moines Iowa.
318 PM EDT Tue Oct 18 2016 High pressure settling over the Great Lakes tonight. With a wet ground from recent rains and the cooler temperatures, will likely see some radiation fog develop overnight,and possibly some areas of stratus.
657 PM EDT Tue Oct 18 2016 Aviation Breezy conditions will subside this afternoon as cooler, drier air replaces the unseasonably warm, humid airmass.
Early afternoon satellite imagery was showing a low pressure trough migrating east across SRN Idaho. A ridge of high pressure gradually builds across the region through the remainder of the week resulting in dry conditions and a warming trend.
/issued 306 AM CDT Tue Oct 18 2016/ An upper level trough currently entering the Pacific Northwest will move slowly east into the plains the next couple of days. This trough will push a dry cold front south to the eastern Permian Basin southwest to the Davis and Guadalupe Mountains by late this afternoon. This front is expected to dissipate tonight but another cold front will head south toward the central Permian Basin by late Wednesday afternoon.
Heating is still possible as the clouds continue to thin quickly in the warmer dome overhead.
Models have the upper trough push across the CWA by Wednesday morning. The plains will have very little moisture in the lower levels. Strong ridging over the western U.
Current temps range from the low to upper 70s due to a bkn to ovc cloud cover this morning. As the high pressure continues to build across the region today and cloud cover decreases, temps will rise into the upper 80s. The high temp for today is normally 74 degrees at both KHSV and KMSL. The record could be met or broken at KHSV as the record is 88 (1926) while KMSL is a little warmer at 91 (1915). Moisture transport in the low levels remains rather persistent across the lower MS valley into the central and lower TN valley tonight into Wednesday.
Patchy freezing fog is possible across the I-80 corridor tomorrow morning. Dry and quiet conditions will persist through the week as high pressure builds into the week.
One last storm system will cross northern Utah and southwest Wyoming today before high pressure returns for the latter half of the week. This system will cross northern Utah and southwest Wyoming this afternoon through this evening, bringing a final round of precip and a reinforcing shot of cooler air. High pressure is on track to move in behind the exiting storm system for Wednesday, remaining in place for the rest of the week. The ridge will keep dry conditions in place with a gradual warming trend in temperatures through the weekend.
647 PM EDT Tue Oct 18 2016 A cold front across SE Lower Michigan will move across the forecast area tonight then stall near the Ohio river tomorrow.
Upper pattern still shows a broad trough over the Western states with a disturbance moving through the Northern Rockies.
140 PM EDT TUE OCT 18 2016 High pressure at the surface and ridging aloft will keep conditions warm and dry for the next few days. A cold front will approach from the west towards the end of the week. High pressure and very light southwest flow to keep things marginally mixed tonight. Tomorrow will likely be the warmest day of the week as high pressure continues to dominate the surface pattern with sunny skies. Low temperatures in the low 60s.
121 PM CDT Tue Oct 18 2016 A cold front continues to slowly slide southeast across North Dakota today. An upper level ridge moves in by the weekend.
637 PM EDT Tue Oct 18 2016 A cold front will continue southeast this evening with a few showers associated with it. Winds behind the front will calm down and shift to the northwest allowing for overnight temperatures to drop down into the lower 50s.
The high temperature at the Huntsville International Airport had warmed to 89F around 1250PM, breaking the old record of 88 last set 90 years ago in 1926. 850mb temperatures over the central areas are in the 16C range, with somewhat warmer readings just to our west building eastward. As such, have updated the forecasts for this afternoon to account for warmer high temperatures. Moisture transport in the low levels remains rather persistent across the lower MS valley into the central and lower TN valley tonight into Wednesday.