Aikyam-Lab/Synoptic-Bench huggingface dataset:
Meanwhile, the cold front is well out ahead of this wave. The GFS would result in some precip chances for Mon-Mon evening with a strong cold front pushing through Mon night. This will elevate the grassland fire danger index into the very high category Fri afternoon with the highest values along and west of I-135. Meanwhile, RH values will be in the 25 to 35% range with the lower values west of I-135. Generally the same conditions will be in place Sun afternoon as southwest winds remain on the high side.
156 AM MST Thu Mar 2 2017 Winds out near Arlington and Elk Mountain area have weakened below warning thresholds, so allowed the high wind warning to expire earlier at 11pm. The sfc pressure gradient and upper level winds will remain low enough today to keep the strong winds at bay, but it will still be breezy across southeast Wyoming with broad high pressure situated out to our west.
306 AM CST Thu Mar 2 2017 Much cooler this morning compared to 24 hours ago with temps currently in the 40s. Even with the sunny skies this afternoon, temps will be below normal and be in the low to mid 50s. The trough mentioned above will keep winds up a little bit tonight and should prevent temps from really bottoming out. Most areas will remain above freezing, except for our TN counties where a few places may drop into the upper 20s. The trough finally shifts east Friday evening and high pressure settles in over a large portion of the eastern US.
Dry weather conditions, mostly clear skies and a gradual warming trend will continue through late week as high pressure dominates the weather pattern across the region.
Tonight Through Friday The upper trough in the Great Lakes will move east tonight as an upper ridge moves to near the west coast. The upper ridge moves into the Rockies by the end of the period. High pressure will be over Arkansas tonight and Thursday. A weak cold front will move into the state Friday but will not initiate any precipitation. Highs will be in the upper 50s to mid 60s Thursday and slightly cooler Friday with highs in the mid 50s to mid 60s.
Meanwhile, weak upper level ridging is moving ashore off the Pacific into the Intermountain West. Near the surface, weak high pressure is shifting slowly east-southeast across the Texas Panhandle. With lighter winds and less near surface turbulence, the temperatures are likely to fall a few more degrees than last night, and as cold as the low teens in the higher terrain far western counties based on the various MOS output that is colder than the models. By Friday, the gradient will return with downsloping southwest winds off the higher terrain of the panhandles and southeast Colorado.
/issued 353 PM CST Wed Mar 1 2017/ (Tonight and Thursday) Northeast winds have been gusty today behind a cold front, but expect winds to continue to decrease through the late afternoon and evening. Have kept lows tonight on the cool end of guidance, with some areas in the big country and other low lying and rural areas around freezing. looking for warmer temperatures and light east winds shifting around to the southeast.
416 AM EST Thu Mar 2 2017 The region will remain under cyclonic flow from departing low pressure today, with gusty winds of 40 to 50 mph and snow showers.
253 AM EST Thu Mar 2 2017 A cold front will move off the coast this morning. A dry cold front will move through Friday. High pressure will pass through the region this weekend from the west.
Quiet conditions will persist through Thursday night as short range models indicate weak upper level ridging shifting slowly eastward across the Intermountain West into the Western High Plains. With very little moisture in the lower/mid levels to speak of, precip chances will remain absent across the region during the period. By Friday, the gradient will return with downsloping southwest winds off the higher terrain of the panhandles and southeast Colorado.
113 AM EST Thu Mar 2 2017 A strong cold front crosses the region early Thursday morning, followed by a secondary dry cold front late Friday. High pressure will then build in behind the front through the weekend.
1126 PM CST Wed Mar 1 2017 VFR conditions will persist throughout the forecast period as high pressure builds into the region.
323 AM EST Thu Mar 2 2017 High pressure will build into the area behind the cold front promoting dry and cooler weather through the weekend. Light rain will continue to push east as the cold front moves through. Dry and cool high pressure will build into the region from the west today in the wake of the cold front. Dry High pressure will be across the region overnight and through the day Friday. Temperatures on Friday will be close to normal, with readings in the lower to middle 60s.
Lows tonight will fall well below freezing, so slippery conditions will develop on untreated roadways.
they will likely still feel on the cooler side and northwesterly winds will once again increase during the morning through afternoon hours. Northwestelry flow will continue across the local area through the end of the week as a ridge of high pressure transitions from the intermountain west and into the plains. Expect this ridge to move across the region over the upcoming weekend as a trough of low pressure moves onshore across the west coast.
There is some uncertainty as to location with some recent high-resolution runs taking the low and snow a bit further south toward Highway 30/Interstate 80, but the vast majority of solutions have located it further north around Estherville, Mason City, Fort Doge and Waterloo and this is the likeliest outcome.
1155 PM CST Wed Mar 1 2017 A sunny and breezy day had taken shape after a strong cold front moved through the region last night. Cooler temperatures were in place as winds were gusting in the 20 to 30mph range across the area. Winds will lighten up this evening as a lobe of high pressure slides over the Ozarks and temperatures fall into the 20s tonight. High pressure will be in control of the regions weather for the end of the week and into the weekend. A relatively flat upper level ridge will slide over the region which will help to bring a warming trend to the Ozarks through the weekend.
1150 PM CST Mon Dec 26 2016 /06Z TAFS/ The Pacific cold front will spread north as a warm front along the I-10 corridor overnight with MVFR stratus developing over KSOA and KJCT. The area with the greatest cloud cover will be over the southern portion of the CWA where lows in the lower 50s are expected along the I-10 corridor.
1251 AM EST Tue Dec 27 2016 A cold front will move through the region tonight, bringing periods of rain, and ushering in much cooler temperatures for the rest of the week.
as the trof moves out. Satl showed a stronger trof moving into Wrn Canada and WA/OR. A strong 160 kt jet was associated with this trof. a broad trof will develop over the Nrn Plains/Nrn Rockies. This high will drift E into the mid MS Vly today and into the OH Vly tonight. The passing trof only has some limited patches of cirrostratus in the Nrn sky.
253 AM CST Tue Dec 27 2016 Minimal impacts expected today as mid level short wave ridge transits the forecast area.
Afternoon high temperatures should be about 5 degrees above normal, ranging from the lows 30s along the Highway 20 corridor, to the low 40s in the far south.
225 AM CST Tue Dec 27 2016 As low pressure over the western lakes region continues to move east, a weak inverted ridge sets up over the CWA. The result is temperatures warming above freezing early before leveling off. Increased wind speeds over the model blend and added mention of patchy blowing snow, despite some locations reaching above freezing.
1052 PM CST Mon Dec 26 2016 Winds will gradually relax into tonight as high pressure builds into the Central Plains tonight. High pressure will shift east, resulting increasing return flow and temperatures warming back above normal. Despite the warming, expect little in the way of melting with wet bulb temperatures well below freezing, especially north of I-90 where much of the ice remains. Long range models develop trough over the northern plains states keeping a westerly flow over the forecast area.
425 AM EST Tue Dec 27 2016 High pressure ridging into the area from the Atlantic will move south today allowing a cold front to cross the area tonight.
202 AM MST Tue Dec 27 2016 Latest upper air analysis shows a quasi zonal flow pattern over the CONUS with a long wave trough present over the northern half and minor short wave troughs in the flow over the Rockies. At the surface a high pressure was gradually exiting the Tri-State Area. Today highs will be a few degrees warmer than yesterday as southerly winds bring warmer air up from the south. Am still expecting highs over the remaining snowfield in western Yuma County to be cooler than the rest of the Tri-State Area, the question is how cool. Tonight a pre-frontal trough will move through the Tri-State Area. Behind the trough winds will turn to the west.
257 AM CST Tue Dec 27 2016 Currently a slow moving cold front had just passed through Savannah Tennessee and Clarksdale Mississippi. In the past 24 hours the highest rainfall amounts were seen across the north.
temperatures across the plains and valleys where winds decouple will be cooler than last night. Kept lower eastern slopes warmer where westerly winds are more likely to persist. forecast will remain dry and warmer.
Key West radar is finding scattered showers in the Florida Straits waters south and west of the lower Keys. The moisture plug moving through the straits and the lower Keys at present should push off westward, and shower coverage will decrease significantly. SREF model soundings show the lower troposphere drying dramatically towards daybreak.
With ensuing warm air advection will see highs a good 8 to 10 degrees warmer than yesterday, topping out in the upper 20s through the Highway 14 corridor to near 40 over the Missouri River Valley.
346 AM CST Tue Dec 27 2016 An upper level ridge that was centered around Florida is beginning to suppress south and west in response to a upper low moving east across the Great Lakes. There are a few exceptions of bridges over waterways that may be impacted by lower visibilities but appears to be in isolated locations. A cold front located along a line from northeast Texas to around Buffalo New York is stalling as the upper trough driving this boundary races northeast.
324 AM CST Tue Dec 27 2016 At 08z, a surface cold front was well southeast of our region with ridging associated with high pressure centered over KS building in. The center of high pressure is expected to move into southeast MO by late this afternoon, maintaining westerly flow into the afternoon before backing southwest by nightfall.
1117 PM CST Mon Dec 26 2016 204 PM CST Windy and unseasonably mild afternoon underway as we bask in the pleasant dry intrusion of the text book mid latitude cyclone that's crossing the Canadian border at this time. Cyclone and upper trough will continue to quickly lift north across Canada with only a quick shot of a Pacific origin cooler air tomorrow, which should result in highs pretty close to seasonal norms if not a hair above.
The wind will continue to diminish through the night along with the low clouds moving out. A strong low pressure system will continue to exit the region this evening. Warmer air will also begin to push into the northern plains with highs popping back into the 20s and 30s.
1102 PM CST Mon Dec 26 2016 Line of convection along cold front, stretching from KTYR to KGGG to btwn KTXK and KSHV, to just north of KELD, movg very little. the secondary line is associated with the weak cold front. This cold front will slowly sag south this evening and during the overnight hours. Temperatures will finally be cooler.
Cold front southeast Missouri will move through Middle Tennessee in the late night into early Tuesday. Cold front running down through northwestern corner of West Tennessee.
1245 AM EST Tue Dec 27 2016 Cold front will cross overnight. Temperatures will be closer to seasonal values through midweek, before a second cold front increases snow showers chances and below average temperatures for the end of the week. Cold front, currently east of ZZV and FKL will sag southeastward across the rest of the region over the next couple of hours.
409 AM EST Tue Dec 27 2016 Cold front will shift east of the region this morning. Temperatures will be closer to seasonal values through midweek, before a second cold front brings snow shower chances and below average temperatures for the end of the week. Cold front continues to move eastward across the region this morning. An area of more moderate rain, coinciding with the entrance region of an upper level jet streak, will support the continuation of Categorical PoPs and higher QPF values over the northeastern WV and southwestern PA ridges. And as mentioned previously, this could translate to some advisory level gusts in the high terrain.
Limited insolation and 925mb temps bottoming out around - 8C will favor very limited diurnal recovery with highs likely maxing out just a couple degrees warmer than current temps.
Most valley temperatures will top out in the lower 50s and 40s for the mountains.
323 AM CST Tue Dec 27 2016 08z/2am surface analysis shows 990mb low over western Quebec, with trailing cold front approaching the Appalachians.
444 AM EST Tue Dec 27 2016 The cold front will move east of the area today and high pressure will build into the region.
1152 PM EST Mon Dec 26 2016 A cold front will move east across the area this evening and early tonight. High pressure will move east across the Ohio Valley Tuesday night.
300 AM CST Tue Dec 27 2016 High pressure is centered over eastern Oklahoma and western Arkansas this morning. This high will begin to shift east of the area today, resulting in above normal high temperatures again today.
312 AM EST Tue Dec 27 2016 A cold front exits this morning.
Upper level divergence occurs this afternoon while a mid/upper level trough moves across southern Wisconsin.
For Tonight, sky clear with surface ridging building into the area.
Downsloping locations across the northern and eastern foothills will remain warmer overnight. Weak upper ridging will set up across the region Tuesday with a quiet weather day in store.
A cold front will gradually continue to move southeast and spread VFR conditions over much of the state. Patchy areas of fog will also develop before the cold front moves through AR. Winds ahead of the front will be south at 5 to 10 mph, while behind the cold front northwest to north at 5 to 15 mph. The much cooler and drier air is behind the second boundary and will also sink to the southeast overnight.
327 AM CST Tue Dec 27 2016 It's not hard to find the cold front this morning, as it is marked by a narrow band of strong showers and thunderstorms, with heavy downpours. At 3 am, the cold front stretched from near Celina, to Smyrna and Linden, and was continuing to march to the east. Highs today are expected to be in the lower to middle 50s, with our most southern and eastern areas likely to see their high temperatures early this morning.
/issued 759 PM EST Mon Dec 26 2016/ An area of high pressure to our north will gradually slip southward tonight, bringing light east to northeast winds. This will especially be true along the Nature Coast and interior northern Florida, nearer the high pressure center and weaker winds. High pressure will make its way south over the next couple of days ahead of a cold front.
SFC ridging builds into the region tonight into Tuesday and no impacts are expected. Upper level pattern becomes more NW flow near the end of the week as an Arctic upper low sinks into southern Nunavut. Long wave trough deepens into the PAC NW from this upper low through the weekend, setting up SW flow pattern by Sun night. This will result in the next best chance for more widespread snowfall Sun night into Monday as a low pressure system moves across the Central plains. Think that ceilings will be mostly around 2500-4000 ft, with the lower ceilings hanging on in the eastern sites a bit longer into Tuesday.
With the strong gulf ridging in place, it will be hard to push further south through the day tomorrow, and as the upper support exits to the northeast, the lift will be meager at best. High pressure and cooler conditions were located over north central Georgia. Isentropic lift over the cooler saturated air has produced some IFR ceilings/VIS. But this particular lifting/cooling process breaks down somewhat as a cold front approaches the area from the northwest. A weak cold front will sink southward into northwest Alabama overnight and slowly slide southward through the area Tuesday.
1201 AM CST Tue Dec 27 2016 Low pressure has moved off to the northeast and was over eastern Ontario. However, KDLH gusted to 41 mph in the 02Z observation but the frequency of the higher gusts will continue to diminish as the low pulls further away from the region. Nudged temps cooler for Tuesday, as well. High pressure ridging will build across the Upper Midwest tonight and loiter for Tuesday bringing a brief reprieve from light snow.
1036 PM MST Mon Dec 26 2016 A transitory short wave ridge will be zipping by over the next 24 hours and bring a temporary lull to the shower activity. The ridge sweeps eastward tomorrow afternoon and we begin to advect high level moisture back into the northern mountains.
410 AM EST Tue Dec 27 2016 High pressure ridging into the area from the Atlantic will move south today allowing a cold front to cross the area tonight.
The upper level flow pattern over the lower 48 states continues to be fairly zonal with weak disturbances embedded in the flow. At the surface, a ridge of high pressure extends from the central Rockies out across the central High Plains into southern Missouri.
1220 AM EST Tue Dec 27 2016 High pressure will ridge into the forecast area from the north through tonight.
The main concern will be the high wind potential again for the higher mountains and foothills by later this afternoon and evening. However, given the increase in moisture expected overnight this will deamplify wave wave activity and keep winds at the highest elevations.
Southwesterly winds and a dry airmass will help temperatures to warm back into the low to mid 60s across the region. Jordan Pattern aloft is forecast to remain largely low in amplitude through New Year's Eve under semi-zonal flow, before North Pacific troughing exerts more influence over the western US for the start of 2017.
942 PM EDT FRI SEP 2 2016 High pressure will build across the region through the weekend. Orgnl Disc: Showers in Washington County will taper off in the next couple of hours as an upper level trough shifts east. Light winds and clearing skies will lead to a cool night with lows in the low to mid 40s north and upper 40s to lower 50s for Bangor and the Down East region. Raised the low temp forecast as the air mass is not as dry as previously expected and some stratocu fields may slow cooling. The high builds tomorrow with low humidity and slightly warmer temperatures reaching the low 70s in most locations.
An upper ridge will build across the area by Saturday allowing for vfr conditions thru the fcst period for both KMSL and KHSV.
A weak upper level trough will remain in place over the forecast area tonight in the wake of departing Hermine over the East Coast and a ridge aloft extending from TX to the Great Lakes. An upper level trof over the region weakens through Saturday, while a surface trof near the coastal portion of the area, which extends from departing Hermine, weakens through the period while shifting further inland. Will have slight chance pops this evening generally east of I-65, then good chance pops follow for Saturday as surface heating with the lingering weak surface trof over the area and a more favorable convective environment leads to scattered showers/storms. Lows tonight will range from the lower 70s inland to the mid/upper 70s near the coast.
739 PM EDT FRI SEP 2 2016 High pressure will build into the Great Lakes then remain across the region through the Labor Day weekend. Lows will range from the lower 50s in the normally sheltered low-lying locations to the upper 50s at higher terrain/ridge top locations. Meanwhile, upper ridging will build into the region from the west, while Hermine slowly moves northeast to a position off the mid Atlantic region.
A low pressure trof will move over the Pacific Northwest tonight and cooler air behind the associated cold front will continue to spread across Central and Southwest Montana. Portions of Southwest Montana will become slightly unstable Saturday afternoon but in general the cooler air will keep the region stable.
Convection also has weakened, with a broken band of showers extending currently from Mainland Monroe County, to near Key West, and southwestward over the lower Straits of Florida. Winds are light out of the south, except in the lower Keys where winds shifted out of the northwest.
1154 PM CDT FRI SEP 2 2016 Latest 19z surface analysis shows high pressure centered over northern Wisconsin into northern Michigan. Surface/upper level ridge over the Great Lakes Region will continue to dominate the forecast area. With surface/upper level ridge ridge in control Saturday.
642 PM CDT FRI SEP 2 2016 Latest 19z surface analysis shows high pressure centered over northern Wisconsin into northern Michigan. Surface/upper level ridge over the Great Lakes Region will continue to dominate the forecast area. With surface/upper level ridge ridge in control Saturday.
Fairly quiet at update time with clear skies, much drier air and definitely cooler temperatures across all of Middle TN.
While the profile was moist in the lower levels, there was a considerable amount of dry air above 720 mb.
916 PM EDT FRI SEP 2 2016 The ridge of a strong high pressure area centered from northern Lake Michigan to Quebec will remain over the Great Lakes region through Saturday night. Lows tonight will again be pleasantly cool, in the lower to middle 50s.
However, expect these clouds to dissipate this evening as high pressure continues to build over the state.
748 PM EDT FRI SEP 2 2016 Aviation High pressure will dominate the weather for Lower Michigan through the upcoming holiday weekend.
/issued 930 PM CDT FRI SEP 2 2016/ Water vapor imagery shows much drier air filtering into the ArkLaTex behind a weak cold front this evening. These clearing skies will combine with light winds and the lower dew points to maximize radiational cooling tonight.
Mid-high level clouds will clear tonight but increase on Saturday as an upper level trough deepens over the west coast. Precipitation will be light and confined to the higher terrain.
907 PM CDT FRI SEP 2 2016 High pressure will continue to build over Arkansas tonight. However, expect these clouds to dissipate this evening as high pressure continues to build over the state.
/issued 305 PM CDT FRI SEP 2 2016/ Popcorn showers have been very slow moving this afternoon as the overhead ridge axis has resulted in very weak steering currents. The upper ridge will be well to our northeast by tomorrow afternoon and southwesterly flow will set up overhead and will help dry the mid to upper levels. Surface moisture will still be bountiful and may allow for some shower development near/along a developing lee trof. Some degree of southwest flow aloft is expected to skirt over the Panhandle with a series of disturbances ejecting out of the western trough from the northern Rockies into the northern high plains.
1152 PM CDT FRI SEP 2 2016 Quiet weather will persist across central and southeast Illinois through the night (and beyond) as high pressure dominates the local weather. For the start of the holiday weekend, high pressure will remain in control over the region through tomorrow, with NE winds throughout the overnight. Tomorrow will be more of the same, with high pressure ridge keeping the winds more northeasterly and mostly sunny with some cumulus across Central Illinois and max temps in the upper 70s/low 80s.