Aikyam-Lab/Synoptic-Bench huggingface dataset:
The freezing level off the 00Z KBOI weather balloon remains around 9k feet. Southeast Oregon and the lower Snake Plain will see little if any precipitation into Friday morning. While precipitation in this area will be light overnight, temperatures will remain above freezing, even across higher terrain near the ID/NV border. MVFR/local IFR conditions under widespread precipitation and mountain obscuration tonight over the higher elevations. Patchy fog in the lower Treasure Valley early Friday morning. Widespread rain and high elevation snow will continue tonight, mainly over the higher terrain of SW Idaho. An upper trough and cold front will bring showers Friday and taper off Friday night. Snow levels will gradually lower through the period, but snow is not expected in the lower valleys.
Water vapor imagery, in combination with the latest RUC model initialization, showed a ridge building east across the Rockies. At the surface, high pressure had shifted off to the southeast and we should see southerly flow overnight. That will bring in warmer low level air, with 850 mb temperatures in the teens Celsius by sunrise Friday. A front drops down from the north, bringing in some cooler air during the afternoon.
306 AM EST Fri Feb 10 2017 Arctic high pressure exits this morning. Quick warm-up through this weekend, with warm front crossing Saturday.
/issued 740 PM CST Thu Feb 9 2017/ Winds are light across the Mid-South this evening and will continue to veer around to the southeast overnight as the surface anticyclone over the Ohio Valley shifts east. Temperatures will rebound tomorrow afternoon, warming into the low/mid 60s across much of the area.
325 AM CST Fri Feb 10 2017 The big weather stories are today's warm up, this morning's light snow accumulations, and the slight chance for freezing rain/sleet this morning. There is a slight chance of freezing rain or sleet from Hallock to Bemidji and northeast through the Lake of the Woods region this morning as the warm air aloft pushes into the region.
1241 AM EST Fri Feb 10 2017 Deep low pressure will track into the North Atlantic tonight. High pressure drifts over the Eastern Seaboard on Friday. A warm moves northeast across the area early Saturday followed by a cold front early Saturday night.
330 AM CST Fri Feb 10 2017 H5 analysis from earlier this evening has low amplitude ridging across the western CONUS centered along the Rocky Mountains. A trough of low pressure extended from off the coast of British Columbia south into the eastern Pacific. Further east, a trough of low pressure extended from Hudson Bay south into New England.
The powerful upper level trough that moved across our area yesterday will continue to push eastward through the rest of today and tonight. In the wake of the cold front that has moved well southeast of our area, we will remain under northerly/northwesterly flow, with dry and cooler air continuing to funnel into our area. Thereafter, the high will move east into the western Atlantic setting up southerly low level flow bringing increasing moisture and warmer temperatures back to the Tri-State region.
High pressure ridge over the cwa was pushing eastward with a band of warm air advection mid clouds on the return flow, that extended from sw MN to se IA and into eastern MO/southern IL. 3 pm temperatures ranged from the upper teens to lower 20s near and south of Highway 30 where there is 1 to 4 inches of snow depth, to the lower to mid 20s to the north where a trace to no snow cover was reported. Tonight: The ridge will slide to the OH Valley overnight, while the clipper system tracks to the ND/Canada border. Friday: Clipper then tracks to western LK Superior later in the day, pulling much warmer air northeast into the dvn cwa.
1259 AM EST Fri Feb 10 2017 Cool high pressure building into the region tonight will move off the coast Friday afternoon.
Warm front Friday. Warmer for the weekend. Mid to high clouds will then increase again Friday as a warm front lifts through. In areas where snow is on the ground, will go toward the lower end of MOS guidance overnight. A warm front will then push northward across the area on Friday. Strengthening baroclinic develops north of the Ohio Valley as an upper midwest trough aloft digs into the Great Lakes.
Although wind speeds should generally be less than 10kts thru 10/18Z, sfc ridging influences are expected to shift rather quickly eastward thru 11/06Z, and thus highlighted specific times to illustrate this veering wind direction scenario in forecasts for area terminals.
1201 AM EST Fri Feb 10 2017 High pressure will end snow showers and return dry weather overnight. Warmer temperatures and rain chances return for the weekend. The lower temperatures led to advisory-level wind chills in Garrett and eastern Tucker Counties, and so issued a headline there. Ridging and high pressure will keep conditions dry through much of Saturday before moisture returns via southwest flow and helps support rain along a warm front extending from the Midwest. This next system will track along the southern Great Lakes and allow much warmer than normal temperatures to advect through the weekend with values nearly 20 above average.
Upper ridge axis over the Rockies today will shift east to the central plains on Friday. Surface winds will be west to southwest on Friday behind the trough, with resulting downslope effects enhancing warming. amplified H5/H7 ridge finally breaking down going more zonal heading into the weekend as an upper trough works off the Pacific coast and into the Rockies. Latest runs of the GFS and ECMWF both do have the southern half of the trough becoming a cutoff low. Increasing clouds from the north during the day Saturday as cold front out ahead of the upper trough works south towards the Tri State region. With high pressure working in behind exiting front.
A very unusual temperature swing overnight and into this morning as readings continue to climb in the wake of this warm front and mostly cloudy skies. Beyond Saturday, the pressure gradient weakens and an easy ridge of high pressure dominates the rest of the forecast.
310 AM EST Fri Feb 10 2017 Cool high pressure over the area will move off the Southeast coast late today through tonight, bringing a warm southwest flow into the region over the weekend. The latest surface analysis shows high pressure building in from the NW, and as it shifts overhead and to our SE through the day, we'll retain very dry low level air, with light/variable winds increasing from the SW. -GIH Heights aloft will continue to rise over the area as broad flat ridging expands across the southern CONUS.
249 AM CST Fri Feb 10 2017 A chilly start today with the entire area in the mid to upper 20s, except for a few valley locations where temps have dropped into the lower 20s. High pressure over the region this morning moves off to the east during the day allowing winds to become more southerly. Winds gradually increase this afternoon as a low pressure system moves out of the CO and into the central US. Temperatures today will be noticeably warmer with highs running about 10-15 degrees above Thursdays values. The increase in clouds tonight and increasing WAA will result in warmer temps with overnight lows in the 40s.
256 AM EST Fri Feb 10 2017 Considerable high cloud cover this morning will thin into this afternoon with warmer air returning to the region courtesy of gusty southwest winds.
Breezy/windy south to southeast winds will remain through the night across the east as warmer air pushes in across all of the cwa. Warmer air is pushing into the region this afternoon thanks to gusty southerly winds. WAA, along with upper level ridging will cause temperatures to become steady, or slowly rise tonight. An area of low pressure crossing southern Canada on Friday will shift the winds to a west-northwest direction.
Have included Fergus County in the High Wind Warning as gusts have reached 60 mph there in the last hour or so. This front and the front of a low-level jet are the primary contributors to the higher winds currently occurring in parts of Judith Basin and Fergus counties. With temperatures expected to remain above freezing all night with areas of rain and significant snowmelt occurring, we have issued a Flood Advisory for much of southwestern Montana through mid-morning Friday. and brief freezing rain or snow. A weak front may also bring a brief period of rain and freezing rain to the Helena Valley this evening. With temperatures expected to remain above freezing all night with areas of rain and significant snowmelt occurring, we have issued a Flood Advisory for much of southwestern Montana through mid-morning Friday.
1000 PM MST Thu Feb 9 2017 Upper level analysis has broad ridge across the western CONUS with closed low just off the Pac NW coast. Upper ridge will flatten as a weak wave moves along the southern Canadian border. Upper ridge continues to flatten and shift east. Another very mild day on tap, however it may be another tricky temperature forecast with a cold front moving in during the day. Lows Friday night will be near freezing.
230 AM MST Fri Feb 10 2017 Low amplitude ridging sits across the central CONUS this morning with an upper trough pushing into the Pacific NW. Another warm day is in store for the CWA today as a thermal ridge continues to cross the high plains. Models are showing a weak cold front crossing the CWA mainly through the afternoon hours which could make the max temp forecast more complicated today. especially ahead of a secondary cold front which will push through Saturday morning. An upper ridge will build over the western CONUS to start the new week.
1241 AM EST Fri Feb 10 2017 With the light winds and mostly clear skies under the high pressure building in, temperatures have fallen quickly tonight with a few spots already in the teens. In addition, southerly winds will pick up just before dawn tomorrow, beginning to bring back in warmer air. Steady southerly flow picks up on the back side of high pressure tomorrow and helps temps climb above normal into the low and mid 50s. Overnight lows will be much milder in the low to mid 30s.
By Saturday an upper level trough will develop over the northern plains and another upper level trough is expected to amplify over southern California. A cold front will approach by Saturday afternoon but balmy highs in the 70s and 80s can be expected ahead of the front from Dodge City southward. Temperatures may not get out of the 60s in Hays and Scott City depending on the timing of the cold front.
Expect most of this low cloud cover to scatter out by early afternoon, but some clouds may persist across areas south and east of a Sonora to Brady to San Saba line. We will be warmer tonight with lows mainly in the 40s. Highs tomorrow will also be warmer, but considering the potential cloud cover into the early afternoon hours, have gone a little cooler than the warm MAV MOS predictions.
Lowered temperatures a few degrees to keep them in the low to mid 30s. not anticipating temperatures to drop below freezing as current thinking is southwest winds along with scattered cirrus tonight should keep temperatures holding steady. The models warmed the disturbance operating a Pacific cold front Friday night and Saturday.
158 AM CST Fri Feb 10 2017 As high pressure continues to move to the east, strong southerly winds will return to the area and bring a start to a warming trend. However, much warmer temperatures is expected by this afternoon with mid 40s along I-74 to the mid 50s in southwest IL. Temperatures will fall tonight, but due to the continued southerly warm air advection, temps will not fall to below freezing, and should range front the middle 30s in the north to the lower 40s in the southeast.
Warm and humid ahead of cold front arriving Monday, then potential for severe with that front, are the primary concerns of thIS forecast. Mid level ridging will remain over Kansas/Nebraska/Iowa region much of today before heights begin to fall tonight as upper low swings into the Northern Rockies. However current complex in the Northern Plains is forecast to round ridge and drop into southern Minnesota and Iowa later this morning. Lowering heights are forecast overnight and Monday as fast southwest mid level flow overspreads Nebraska and the Dakotas ahead of upper low forecast into the Northern High Plains Monday afternoon. Attention then turns to cold front moving into northeast Nebraska Monday afternoon.
613 AM MDT SUN JUL 10 2016 Upper ridge axis extended from the Desert Southwest northeast to the Upper Midwest. Upper low was approaching the WA/OR coast, with strong southwest flow aloft across the Intermountain West. Wavy surface boundary extended from NV to lows over northern UT, WY and ND, with a trough from southwest SD through eastern CO to southeast NM. The model guidance is in good agreement with the eastward track of the upper low and trough from the Pacific Northwest through the northern Rockies and Great Plains.
Unseasonably strong upper level low over the Pacific Northwest will move into western Montana by this evening. Widespread precipitation will develop today as a low pressure trof moves through the Pacific Northwest and approaches Western Montana.
839 AM EDT SUN JUL 10 2016 Dry and pleasant weather arrives today with high pressure over the region. Warmer and more humid as we head through the work week.
1130 AM EDT SUN JUL 10 2016 A weak cold front, characterized more by drier air than cooler temperatures, will settle toward the coast of NC today. This is evident by sfc dewpoints in the low and mid 60s late this morning across the area. -26 A positively-tilted trough /shear/ axis aloft will continue to extend from the TN Valley NEWD across the SRN Middle Atlantic states, while the low level frontal zone remains quasi-stationary from SWRN VA to ERN NC, or squarely over central NC. Lows in the lower to middle 70s, with a chance of showers and perhaps a few storms lingering with little change in synoptic features overnight.
739 AM EDT SUN JUL 10 2016 Aviation A pleasant Sunday is expected with a good deal of sunshine, low humidity, light winds and seasonable temperatures in the lower 80s. The fair weather is provided courtesy of an area of high pressure that will be parked over the area today. Monday and Monday night will feature dry weather, even as the high drifts to the eastern seaboard.
734 AM EDT Sun Jul 10 2016 Periods of rain showers with isolated thunderstorms continue today as the upper level low slowly progresses across the area.
707 AM CDT SUN JUL 10 2016 Forecast for today will depend a lot on where the warm frontal boundary is located.
Upper level low drifting across the Tennessee Valley through the next couple of days will continue to provide just enough lift to set off scattered to numerous showers and thunderstorms across central Alabama.
1024 AM EDT SUN JUL 10 2016 Today will be cooler with lingering scattered rain showers mainly in central New York.
938 AM CDT SUN JUL 10 2016 Wx map shows weak high pressure ridging across the Eastern Gulf, with a general SW flow across our region. Otherwise, some high clouds are streaming in from the west while KLCH radar shows only a few small -SHRA over the lower Atchafalaya Basin and offshore. A change in the upper level weather pattern will take place today as the center of the pesky upper level ridge will become more established over the southwest U. at the surface and the low levels, high pressure will be centered off of Florida and ridge westward across the Gulf South and into the forecast area. The one change will be a little bit more in convective activity as an upper level high weakens allowing showers and thunderstorms to increase in coverage.
753 AM EDT SUN JUL 10 2016 Low pressure will cross the region today then exit across the maritimes tonight.
1029 AM MDT SUN JUL 10 2016 Outflow from last night's convection has led to cooler and more moist conditions this morning along with areas of low clouds. Current surface map places weak cold front/outflow boundary across northeast Wyoming into western South Dakota. Water vapor shows upper ridge located over the dakotas. as strong upper trof moves into the northwestern U. Jet streak rotates through base of upper trof and lifts through western Wyoming into Montana. Upper low track across Montana into northwest North Dakota on Monday with dry and windy conditions expected across the forecast area.
Latest incoming guidance indicates a slightly slower evolution of the 500mb upper low to the west. Cold front will be propagating through the region. Environment again favorable for significant severe weather once storms do develop along the cold front (most likley along and east of the valley).
1047 AM EDT SUN JUL 10 2016 High pressure over the region today will transition to the east over the next few days. Highs should reach the lower to mid 80s across the fa today. H5 ridge builds east into the region on Monday. This ridge will provide dry weather with a warming trend.
Cold front with showers and thunderstorms moving northeast across western Idaho this morning. Scattered showers and isolated thunderstorms elsewhere through the day as upper low moves through.
1228 PM EDT SUN JUL 10 2016 Hydro A pleasant Sunday is expected with a good deal of sunshine, low humidity, light winds and seasonable temperatures in the lower 80s. The fair weather is provided courtesy of an area of high pressure that will be parked over the area today. Monday and Monday night will feature dry weather, even as the high drifts to the eastern seaboard.
75", most of which is more or less evenly distributed thru the column rather than concentrated in the lower lvls. Mid lvl thermal ridge has weakened along the I-4 Corridor with H70 temps arnd 9C but remains quite strong arnd the Lake-O region with reading holding arnd 10C. H100-H85 streamline analysis shows the Bermuda ridge axis was positioned just north of the nrn Bahamas/Lake-O region this mrng, a slight northward jog over the past 24hrs in response to a broad storm system transiting the New England region and lifting into the Canadian Maritimes. Ridge will continue to drift north thru the day as the low lifts NE. Bermuda Ridge axis located just north of the Nrn Bahamas/Lake-O Region will generate a light to gentle S/SE breeze thru midday.
With nearly perfect convergence in the low levels, the cold pool will likely lead to sustained updraft development. 06Z surface data has high pressure from the Great Lakes into the lower Mississippi Valley. At the very worst an isolated shower or some sprinkles may occur in the highway 20 corridor.
A low pressure trough to the north will bring more coastal clouds and cooler weather through Monday, along with strong winds to parts of the mountains and deserts today. Higher pressure will bring warmer weather and less coastal cloudiness for the rest of the week. This despite the lower pressure aloft and the weak coastal eddy that usually tends to lift clouds.
/issued 316 AM CDT SUN JUL 10 2016/ High pressure ridge over the southwest was quite evident on both IR and water vapor imagery this morning, and this feature will stay established over the forecast area today. Flat upper level ridging over the southern tier of the continental U. still progged for this week with any short wave troughs to stay in the jet stream across southern Canada and the northern CONUS.
Satellite imagery on the other hand is not showing much activity in the lower levels upstream from the Keys. Another day of high values of heat indexes, remember to drink water! The Florida Keys remain under the effects of a ridge extending east to west over south Florida this morning. By tomorrow, the axis of the ridge will lift north towards northern Florida and winds more from the southeast are expected.
Afternoon temperatures on the lower deserts will remain near, or a few degrees above normal. Westerly flow associated with a strong upper low center that is now moving inland into the Pac NW has pushed our typical monsoon moisture well off to the south and east. At the surface, lows this morning across South- Central AZ remain on the warm side, with Phoenix Sky Harbor seeing a low of 87, likely being kept up by a weak moisture seep from the south that has kept the sfc dewpoints a bit elevated as well, up into the low 50s.
Temperatures at KDEN are running about 3 degrees warmer than yesterday, so we might make it to the century mark in the next few hours. An upper level low will move across the Pacific Northwest today and into the Northern Rockies tonight. Meanwhile the ridge over the region will shift eastward today. Expect highs to be a couple degrees warmer today due to the stronger downslope winds. high temperatures and low RH values over the high terrain. The upper level closed low over Montana with a trough that will move over the Northern portions of the state bringing increased winds to the region for Monday afternoon and evening. It will however bring gusty winds to the higher terrain and foothills with gusts in the 30-40 range by Monday afternoon and evening.
A short wave trough over central Texas will move south into the area today providing an increase in mid and high level cloudiness. Water vapor imagery shows a short wave trough from southeast Oklahoma southwest to the northern Hill Country to the Texas Big Bend. This short wave trough will move southeast today and be located from east Texas southwest to the Coastal Bend this afternoon. Most of the high resolution mesoscale models are not showing any convection forming over south Texas with the exception of the 00z SPC 4km WRF-NMM.
650 AM CDT SUN JUL 10 2016 07z/2am surface analysis shows ridge of high pressure extending from the Great Lakes into Illinois. ridging is building over the Plains in response to a deep trough digging across the Pacific Northwest. Will need to keep an eye on this system, but think it will completely dissipate by early to mid afternoon across central Iowa as it tries to push into the prevailing ridge axis and unfavorably dry airmass further east. As high pressure shifts off to the east, the very warm/humid airmass poised just southwest of Illinois will filter back northward by Monday.
Chattanooga Airport, TN 91 71 91 71 / 20 10 30 30 Knoxville McGhee Tyson Airport, TN 88 68 87 69 / 10 10 20 20 Oak Ridge, TN 88 68 88 69 / 10 10 20 20 Tri Cities Airport, TN 85 64 87 67 / 10 10 20 20.
/Issued 348 AM CDT SUN JUL 10 2016/ A return to a drier weather pattern will begin today as an upper ridge builds back over the area.
652 AM CDT SUN JUL 10 2016 Warm and humid ahead of cold front arriving Monday, then potential for severe with that front, are the primary concerns of thIS forecast. Mid level ridging will remain over Kansas/Nebraska/Iowa region much of today before heights begin to fall tonight as upper low swings into the Northern Rockies. However current complex in the Northern Plains is forecast to round ridge and drop into southern Minnesota and Iowa later this morning. Lowering heights are forecast overnight and Monday as fast southwest mid level flow overspreads Nebraska and the Dakotas ahead of upper low forecast into the Northern High Plains Monday afternoon. Attention then turns to cold front moving into northeast Nebraska Monday afternoon.
A cold front extends from South Carolina northwest into Nashville this morning.
A weak surface pattern will allow for light winds the next 24 hrs now that a cold front has slipped to our south.
As a result of this, although conditions will be a bit warmer today, the coolest areas will again be near Lake Michigan. Overall expect highs in the low to mid 80s inland and in the middle 70s near the lake.
Upper trough is moving east across the PacNW with NorCal now on the backside. An upper level trough is moving through bringing cool temperatures and keeping winds up a bit overnight. This morning is already quite cool, with temperatures at 2 am 5 to 10 degrees cooler than this time yesterday. Afternoon highs should be a little cooler than yesterday, though ridging this afternoon should limit this generally to a few degrees less.
1239 PM EDT SUN JUL 10 2016 Low pressure will cross the region today then exit across the maritimes tonight.