Aikyam-Lab/Synoptic-Bench huggingface dataset:
310 PM EST Fri Mar 10 2017 High pressure and cold airmass will remain in place across the area through the weekend.
440 PM EST Fri Mar 10 2017 High pressure will build out of the Great Lakes today in the wake of the departing storm system.
GFS still has the highest QPF and thus highest potential snow totals across eastern Nebraska as compared to NAM and ECMWF. Somewhat warmer temperatures aloft are also noted, suggesting liquid to snow ratios are lower as well. Not much more moisture was noted aloft as 850 and 700 dew point depressions from the High Plains (source region for later tonight) were quite high.
948 AM MST Fri Mar 10 2017 Potent warm nose aloft combined with WAA/ll shear/saturated flow is supporting freezing rain and freezing drizzle/fog respectively. Hence, more concerned about freezing rain potential in and around the Black Hills. Given expected wintry mix decided to issue a winter weather adv for the Black Hills and surrounding plains with a glaze of ice possible where temps don't warm above freezing (higher elevations) and up to 2 inches of snow accums. Expanded freezing fog/drizzle mention.
High pressure was centered over west central Manitoba early this morning with the ridge axis into the eastern Dakotas. This has led to warmer temps due to less radiational cooling which in turn has kept the wind chill values in the respectable range. The high center will be nearly stationary today through Friday. The ridge axis will be nearby tonight and Saturday and with neutral temperature advection, and a northwest flow aloft keeping 850mb temps in the teens to low 20s below zero celsius, surface temps will remain below normal today through Saturday. A ridge of high pressure at the surface will extend southeast over the Northland and that and dry air should keep most of the area dry despite the weak wave.
With the early March sun-angle, snow accumulation should be limited on roadways, but an additional inch or so may be possible especially where several of these bands pass over, and in the ridges, through the evening. Despite the ongoing showers, will let the winter weather advisory for the ridges expire on time. Upper troughing pattern will continue through the weekend with well below normal temperatures.
331 PM EST Fri Mar 10 2017 High pressure will build out of the Great Lakes today in the wake of the departing storm system.
The low clouds will linger this morning, but mid level clouds will push into the area this afternoon. With the clouds, expect the temperatures to remain on the cooler side. The northeast will have less sun and temperatures will be cooler there than in the southwest where they will have a little more sunshine.
121 PM EST Fri Mar 10 2017 High pressure will build out of the Great Lakes today in the wake of the departing storm system.
157 PM CST Fri Mar 10 2017 Cold front near the Pecos River will lift back n as a warm front tonight and as such low level mstr in form of low clouds, possibly some fog, will be favored to redevelop. NW flow aloft will amplify and as previously mentioned cold/warm front surges s again. A low level moisture axis as seen in theta-e ridge will set up in advance of the front and INVOF central PB. In turn it will be noticeably cooler Sun AM/PM.
Removed TSRA from grids through 11/12Z with moisture divergence taking place and the lower likelihood that any renewed development will be able to attain lightning.
1142 AM CST Fri Mar 10 2017 Cold front from last evening has pushed well east of the forecast area as of 08Z, with clear skies and brisk northwest wind in its wake. Winds become light tonight as ridge axis bisects the forecast area from northwest to southeast by 12Z Saturday. Saturday will remain under the influence of high pressure with slightly warmer temperatures and partly to mostly cloudy skies.
Expect breezy conditions this morning in the wake of a cold front. Will need to watch model trends closely as this event enters the time frame of the high-res guidance. Low temps Sat night should fall into the lower 20s.
1203 PM CST Fri Mar 10 2017 Water vapor imagery shows an upper trough tracking across the Great Lakes region with additional energy coming on shore over the Pacific Northwest. This will further deepen the upper trough to our east, keeping unseasonably cool temps in place to start the work week. By 12z Tue, a deep upper trough will stretch from the Great Lakes down into the Tennessee Valley with a cool airmass remaining over the Plains. Fire danger concerns will remain on the low side over the next few days. Winds this afternoon will generally be out of the east and northeast at speeds in the 10 to 15 mph range with RH's on the higher side due to lower temps.
We should see rapid clearing behind a cold front today. North wind is strengthening behind the cold front. Fruit trees, bushes and tender vegetation that has sprouted early may be impacted by frost and freezing temperatures. although luckily little to no freezing rain. 4 max) at Walnut Ridge, 0.
This will allow our eastern valleys to approach the low 20s by midnight. The models continue to trend further south with the deeper moisture Saturday night, as a short wave trough moves from central Plains through the Ohio/Tennessee valleys.
Strong 1048 mb Canadian high pressure over central Sasketchewan and ridging SSE into the Great Plains, will ridge into IL through this evening and bring dry and cold conditions to central IL. Much cooler temperatures are expected across central and southeast Illinois through the period. Max temps on Saturday will remain in the lower 30s.
An upper level trough across southwest Canada will dig southeast into the northern and central high plains by 12Z SAT. The low-level cold air advection will only allow highs to reach around 40 across the northern counties with mid 40s across the southern half of the CWA. Tonight, As the upper level trough approaches the central high plains, an increase in frontogenetical forcing will cause an area of snow to develop across western NE, that will move southeast through the night and may reach the northern counties of the CWA by 12Z SAT. Most forecast soundings show the low-level dry air remaining in place across the southern half of the CWA, therefore precip may not begin in the southern counties until after 12Z SAT.
1147 AM CST Fri Mar 10 2017 Light snow is trying to push across the area this morning, however very dry air in the lower levels is resulting in little to no snow. A ridge of Canadian high pressure centered across the region will slowly exit east through tonight, putting an end to the mainly dry weather.
A cold front lies across our eastern plains with widespread stratus around 1000 feet AGL behind the cold front. High temperatures remaining relatively cool in the wake of the cold front and with limited winds.
334 PM CST Fri Mar 10 2017 An area of low pressure over SE Wyoming will slowly track southeast of the region tonight through Saturday. Starting out Saturday night and persisting through Friday, the upper level steering flow is supposed to maintain an upper level ridge over the west coast/upper level trof over the east coast, leaving this cwa in some form of northwest flow aloft throughout the period.
As of 17Z the cold front was draped across northern Alabama and Mississippi. Temperatures will be about 5 to 10 degrees cooler than last night, ranging from mid 40s inland to lower 50s at the coast.
/issued 316 AM CST Fri Mar 10 2017/ Cold front currently across the Texas Panhandle will push south into the Permian Basin today and into the mountains by early this evening, aided by strong pressure rises behind it. There will be a significant temperature gradient by this afternoon with temperatures in the lower 60s in the extreme western Low Rolling Plains behind the front to near 90 along the Rio Grande River. The cold front is expected to dissipate with return low level flow developing later tonight and Saturday with temperatures rebounding to above normal values again by Saturday afternoon. A stronger cold front is forecast to track into the northern Permian Basin in northwest flow aloft by late Saturday afternoon.
1051 AM CST Fri Mar 10 2017 Northwest winds will continue to bring a cold airmass into the area into Saturday, as high pressure remains well to the northwest. Skies will be clear through much of the day as strong high pressure approaches from the Northern Plains. Breezy northwest winds will ease a bit this evening and overnight as the ridge builds into southern Wisconsin.
1108 AM EST Fri Mar 10 2017 An Arctic cold front will move through Friday night, followed by bitter cold weather over the weekend.
1127 AM CST Fri Mar 10 2017 A back-door cold front continued to push southwest across the region and was located along a line from kmlu to kshv to north of kggg and ktyr early this afternoon. /issued 1004 AM CST Fri Mar 10 2017/ Back-door cold front making its way swwd across our region this morning. /issued 459 AM CST Fri Mar 10 2017/ A cold front moving into the Red River Valley from the north brought a line of strong thunderstorms along an outflow invok frontal boundary, which have mostly diminished during the wee hours. A stronger cold front will move quickly across area later Saturday into Sat night.
A cold front is currently draped from eastern West Virgina, southwestward through north Alabama and into Mississippi. Temps currently in the lower 60s will likely drop by a couple of degrees over the few hours and then rise this afternoon. During the evening, forecast soundings indicate rapid cooling of mid levels with a near isothermal layer around 0C above 850 mb, while low levels stay above freezing during the evening hours.
1229 PM EST Fri Mar 10 2017 A cold front has slipped south of the Mid Atlantic.
1148 AM MST Fri Mar 10 2017 Potent warm nose aloft combined with WAA/ll shear/saturated flow is supporting freezing rain and freezing drizzle/fog respectively. Hence, more concerned about freezing rain potential in and around the Black Hills. Given expected wintry mix decided to issue a winter weather adv for the Black Hills and surrounding plains with a glaze of ice possible where temps don't warm above freezing (higher elevations) and up to 2 inches of snow accums. Expanded freezing fog/drizzle mention.
228 PM MST Fri Mar 10 2017 We have dropped the advisory for the Southern Rocky Mountain Front with temperatures now above freezing where rain showers are occurring along and near the mountains. Upper ridging builds in for Saturday and should allow for at least a slight moderation of temperatures over the Plains, and this may help push the stationary boundary over our central counties out onto the adjacent Plains.
VCTS are expected to increase across the area through this afternoon ahead of the cold front and MVFR ceilings will be possible at terminals with the greatest VCTS intensity and coverage. Thunderstorm activity is expected to diminish after 00Z with the loss of daytime heating and the cold front moving slowly offshore and ushering in northerly winds.
259 PM CST Fri Mar 10 2017 Arctic high pressure centered well up in northern Canada was ridging into the Midwest. The only portion of the dvn cwa that should saturate into the low levels closer to the clipper should be our far southwest counties. We will have chance pops in the sw cwa after midnight, with the highest pops late tonight. Basically, the southwest 2 tiers of counties may see total snow accumulations of a trace to up to an inch, with the highest amount in Scotland county, MO.
By the beginning of the next work week, a low pressure will develop offshore the northeast coast of Florida, move northeast along the mid-Atlantic states and strengthen rapidly. Locally, however, the effects will be a warmer type of precipitation aka rain, fresh breezes, and lower dew points.
Storms are about to exit Middle Tennessee as a cold front sweeps through the mid state. Look for skies to begin clearing out from NW to SE as we head toward morning, with mostly sunny skies today in spite of significantly cooler temperatures. A swath of moisture riding a NW flow aloft will merge with an inverted trough attached to a Gulf of Mexico low to produce mainly rain on Saturday. Despite cooler temperatures today and tonight, ground temperatures are still going to be relatively warm given the warm pattern we've experienced these past several days.
Northwest winds will continue to bring a cold airmass into the area into Saturday, as high pressure remains well to the northwest. Skies will be clear through much of the day as strong high pressure approaches from the Northern Plains. Breezy northwest winds will ease a bit this evening and overnight as the ridge builds into southern Wisconsin.
1229 PM EST Fri Mar 10 2017 Aviation The longest string of days in a row with highs at or below freezing since the first week of January will begin today in Southwest Michigan.
In the northern stream, an upper level trough will move south across the area Sun night and bring another shot of cold air to the area. The operational models begin to diverge in their respective solutions as a ridge builds in the West, held up by a maturing upper low over the Midwest/Great Lakes region. Satellite and surface obs indicated cirrus clouds were spilling over an upper ridge over MT.
Highs will range from the lower 30s eastern portions of north central Nebraska to mid 50s far southwest Nebraska.
351 PM EST Fri Mar 10 2017 A cold front will push offshore this evening followed by cooler high pressure into Saturday night.
A very weak short wave at 500mb will move over the region tomorrow and combined with a strong cold front may develop convection.
A weak cold front will cross the area late today and tonight.
334 PM CST Fri Mar 10 2017 Cold front pushing swwd across Deep E TX this afternoon and is expected to just clear the region by late tonight.
Despite the cooler temperatures today, it will be a nice day. Clouds will increase tonight as an upper level wave moves down across the High Plains into the Midwest and Ozarks Region. Temperatures will likely be hovering around freezing or slight above. Temperatures will also fall below freezing. Will mention that any moisture on roadways and bridges after sunset may cause a few slick spots especially when temperatures fall into the 20s late Saturday evening and overnight.
A ridge of high pressure will remain over California and the Desert Southwest for the next several days. Meanwhile a large anticyclone (high pressure system) is centered out about half way to Hawaii and extends to near the SoCal coast. For the next several days, forecast slowly move the center of the high east towards the forecast area and this will allow for a slow but steady warm up in temperatures.
155 PM EST Fri Mar 10 2017 A cold front and area of low pressure will move across the region today.
1249 PM EST Fri Mar 10 2017 High pressure will build into the region today bringing much colder temperatures.
Weak cold front continues to move through the area this morning and as of 0900 MST it's located near the ID/OR border. A weak Pacific cold front will bring scattered showers to Baker County Oregon and the west central idaho and Boise Mountains Saturday night, with snow levels near 6500 ft msl. The current forecast for the Weiser River at Cambridge remains below minor flood stage. Weak cold front currently within our CWA is moving east-southeast and should be near the ID/NV border around noon MST. Saturday will start out mostly sunny but the next Pacific warm front will come in with a chance of light rain in northern areas Saturday afternoon.
1245 PM EST Fri Mar 10 2017 Much below normal temperatures are in store from today through the weekend as a broad ridge of Canadian high pressure settles into the region.
In the northern stream, an upper level trough will move south across the area Sun night and bring another shot of cold air to the area. The operational models begin to diverge in their respective solutions as a ridge builds in the West, held up by a maturing upper low over the Midwest/Great Lakes region.
331 PM CST Fri Mar 10 2017 (Tonight and Saturday) Currently, a cold front continues to drift south through the Heartland and Concho Valley areas. For the rest of the overnight, the cold front will lift back to the north, and another round of low clouds is expected to spread northward across the area. A cold front will approach late in the afternoon, and could set off a few showers and thunderstorms tomorrow afternoon, so have held on to slight chance to chance precipitation wording, but expect rain chances to hold off for most areas until the evening hours.
324 PM CST Fri Mar 10 2017 On Friday afternoon, strong high pressure was building south from Canada into the Mississippi Valley. As the night progresses, the incoming mid level moisture will interact with better lifting mechanisms entering the area from the northwest with an incoming short wave trough.
Overnight lows Wednesday night will coo into the lower-mid 60s.
1226 AM EDT Wed Oct 19 2016 Rain shower chances are in the forecast tonight 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 never does manage to sag southeastward overnight with this low-level boundary.
However, an upper level ridge centered over the Lower Mississippi Valley, is producing enough subsident air aloft, to keep the cumulus from forming into any significant shower activity.
654 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.
1253 AM EDT Wed Oct 19 2016 Dry high pressure will continue across the region through the middle of the week.
Quiet evening across the mid state, with temperatures cooling off into the low to mid 70s so far.
1013 PM EDT Tue Oct 18 2016 A cold front will drop southeast into Ohio tonight, bringing an increasing chance for showers and thunderstorms.
The upper level ridge will shift further east of the region as an upper level trough moves into the central plains during the period. A cold front will be moving into Texas tomorrow, moving further south towards the region overnight. H85 temps Wednesday are a couple degrees cooler overhead as the subsident high moves away from the region. This will translate to afternoon temperatures coming in a couple of degrees cooler than the past couple of days (though highs will still be well above normal). The best chances during the period remain late in the period on Wednesday night as the frontal boundary and upper level trough move closer to the region.
508 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.
907 PM EDT Tue Oct 18 2016 Another quiet night underway with high pressure in control.
/issued 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.
704 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.
The southern counties should be a bit higher in the upper 30s with less clouds but with some mixing winds and a warmer start. The cool air mass will continue through Wednesday with highs ranging from the low 40s north to low 50s south.
Under partly cloudy skies elsewhere, temperatures in the Keys service are in the lower 80s. Moisture has increased slightly in the lower levels as the resistant convective layer has risen by about 4000 feet.
A short wave trough coming out of the central Rockies today is expected to amplify Wednesday and Wednesday night over the Plains.
/Issued 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.
934 PM CDT Tue Oct 18 2016 Showers have ended, though low cloud cover has pushed further into the area than previously thought as cooler airmass pushes in. A cold front continues to slowly slide southeast across North Dakota today. An upper level ridge moves in by the weekend. MVFR with localized IFR cigs are expected to prevail tonight over northern North Dakota in the wake of a slowly advancing cold front.
Upper level ridging is moving into the area and showers will taper off across the area by midnight except for the west central Idaho mountains where snow showers will linger through early Wednesday morning.
The lower temperatures also make fog a little more likely, so added patchy fog to the forecast for the north. Tonight and Wednesday Skies cleared as a cold front to the southeast continued to move away from the forecast area.
1025 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. 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.
Light winds with flow gradually veering overnight through Wednesday morning in advance of a modest cold front that should arrive by early to mid afternoon on Wednesday. Late in the day Wednesday a cold front will advance southward from the Texas Panhandle. /issued 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 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.
VFR conditions and light winds expected overnight and through the day Wednesday under high pressure.
Cold front brings wind shift to north around 14z Wednesday at northern terminals, and around 16z at KAMA. /Issued 346 PM CDT Tue Oct 18 2016/ Upper level analysis places high pressure over eastern TX with anti- cyclonic flow extending over the southeast CONUS. Model are in decent agreement with another cold front moving through the area Wednesday morning through the early afternoon as the upper trough amplifies some breaking down ridge over southeast.
822 PM EDT Tue Oct 18 2016 A cold front will drop southeast into Ohio tonight, bringing an increasing chance for showers and thunderstorms.
Temperatures this afternoon have reached into the low 80s, with the mercury in a few spots reaching middle 80s at forecast time.