Aikyam-Lab/Synoptic-Bench huggingface dataset:
224 AM EST Tue Nov 8 2016 A large area of high pressure will slowly recede off to the southeast overnight and Tuesday. A cold front will move through the region Tuesday night and early Wednesday followed by cooler temperatures for the second half of the week into the upcoming weekend. Clear and calm overnight in progress with high pressure overhead. Ensemble mean 925MB temps are supportive of max temps for election day in the low to mid 60s. Upper ridging over the Northeast at the start of the period will give way to a fast moving upper trof in this progressive upper pattern. The first system is forecast to come over the top of the ridge Tuesday night with a weak front and showers dropping southeast across PA overnight into Wednesday.
Deep layer ridging will keep most areas dry tonight although we could see a few showers over the marine area. Look for lows in the upper 40s around Albany to the lower 60s at the coast. An upper level trough currently over the central part of the country will move eastward through the period. Low temperatures will generally range from the lower 50s across the far north to lower 60s long the coast on Tuesday night with cooler air moving in on Wednesday night behind the system.
300 AM CST Tue Nov 8 2016 The upper level trough axis is starting to work into northwestern Missouri early this morning. Strong subsidence in the wake of that upper trough will clear skies out later today and tonight. At the surface, high pressure will build into the region. While the high won't be centered right over the forecast area, it will allow winds to become light or even calm for much of the area. More widespread frost is likely across northwestern Missouri, closer to the center of the high and more likely to see calm winds and ideal radiational cooling conditions.
However, the next chance for rain showers will be Tuesday night through Wednesday morning, as a cold front sweeps across the area.
153 AM CST Tue Nov 8 2016 Upper troughiness prevails over the Central CONUS, sandwiched between ridges over the West and East. The tail end of this trough will merge with the remnants of the southern stream system /this week's rain maker/ and slide south and eventually west with time, forming a new closed low over the Southwest in a split flow blocking pattern by Wednesday. Will maintain chance pops mainly north of I-40 thru the morning close to the upper trough axis, then decreasing pops in the afternoon as the wave energy over the central part of the country splits off from the northern stream and begins its trek southwestward, effectively shearing out over our area.
A cold front will make its way across the forecast area tonight. Expect highs in the low to mid 50s, which is still about 10 degrees above climatological normals. High pressure will remain in control through Wednesday.
339 AM EST Tue Nov 8 2016 High pressure will move south of the area and weaken today and tonight. Low pressure and a cold front will cross the region Wednesday.
357 AM EST Tue Nov 8 2016 High pressure builds over the area today.
Slightly warmer temperatures can be expected on Tuesday. Near record to record high temperatures appear likely on Wednesday over much of western and central North Dakota as the ridge axis slides over the western part of the state.
A thin line of light rain is moving rapidly westward through the Atlantic waters south/southwest of the Lower Keys presently, basically the only current echoes on KBYX doppler radar.
/issued 817 PM EST Mon Nov 7 2016/ Deep layered ridging will remain in control with pleasant dry weather continuing through Tuesday. Temperatures tonight and Tuesday will run a few degrees above normal with lows tonight falling into the upper 50s to around 60 across the Nature Coast, and lower to mid 60s central and south, with daytime highs on Tuesday again climbing into the lower 80s.
319 AM CST Tue Nov 8 2016 Latest satellite water vapor loop shows the the upper trough axis across southeast Nebraska to north central Texas with the upper low circulation over south central Kansas moving northeast. Expect some light rain or drizzle in the areas ahead of the upper trough axis and northeast of the upper circulation. Areas of frost are expected across the CWA with temperatures dipping into the low to mid 30s. Counties along the Nebraska border have already had freezing temperatures so no advisory will be issued for those areas. As a result, expect low temperatures around sunrise to be in the low/mid 30s with areas of frost likely.
1219 AM EST Tue Nov 8 2016 High pressure will build over the area through Tuesday.
The dry and mild weather conditions that have been so common over the last several days will continue into Wednesday as an upper ridge builds over the Northern Rockies. The ridge begins to flatten Wednesday night as a dry cold front crosses the region.
213 AM CST Tue Nov 8 2016 A cold front currently stretches from Chicago, Illinois to Tulsa, Oklahoma. By this evening, the cold front will begin to push into Northeast Arkansas, the Missouri Bootheel, and Northwest Tennessee.
243 AM EST Tue Nov 8 2016 Another day of above normal temperatures and abundant sunshine is expected for this election day as high pressure continues to dominate over the North Country. A cold front moving east through Great Lakes today, will sweep across the forecast area late tonight through Wednesday, accompanied by some light rain showers.
358 AM CST Tue Nov 8 2016 A long wave trough over the plains and western Texas will keep a southwesterly flow aloft over SE Texas today through Wednesday. In the meantime, a cold front at the surface will move across SE Texas later today and off the coast tonight. Drier and cooler air will filter into the area later tonight and Wednesday and lead to below normal temperatures both periods. Both the GFS and ECMWF develop an upper low over the El Paso area by Wednesday night.
307 AM CST Tue Nov 8 2016 A cold front is moving through the area this morning bringing cooler temperatures in its wake. The associated upper trough will actually deepen into a low, and become disassociated with the prevailing flow and retrograde west under an amplifying ridge over the Rockies.
/issued 858 PM CST Mon Nov 7 2016/ Wx map shows weak sfc trof over Northern Gulf south of the Louisiana coast.
An upper level low develops over northwestern Mexico into the far southwestern states while a cold front moves across our area today.
258 AM CST Tue Nov 8 2016 The cold front will make steady progress across Illinois from NW to SE today. The high resolution models are pointing toward an enhanced area of frontogenesis developing after sunrise this morning roughly along the I-72 corridor. Some sunshine this afternoon in our W-NW counties could help those temps rebound farther into the lower 60s.
127 AM EST Tue Nov 8 2016 High pressure will crest over the area through Tuesday.
346 AM EST Tue Nov 8 2016 Showers are expected in the area today as a cold front moves through. High pressure will build into the Midwest Wednesday providing fair weather along with a little cooler temperatures. Highs today will be in the upper 50s and lower 60s with lows tonight in the lower 40s. Post frontal strato cu should gradually mix out Wednesday as ridging builds in.
1147 PM EST Mon Nov 7 2016 High pressure will allow for dry and warm conditions Tuesday. A cold front will bring rain Tuesday night and Wednesday morning and a return to seasonal temperatures. Clouds will increase during the day on Tuesday as a cold front approaches from the west. The cold front will cross the region Tuesday night. As winds will immediately go to the northwest behind the front, there should be little time between the widespread precipitation associated with the cold front and scattered showers that will develop in cold northwest flow.
221 AM CST Tue Nov 8 2016 Relatively quiet weather expected today as high pressure builds into the region. Good radiative conditions tonight will result in temperatures dipping below freezing in some locations.
139 AM MST Tue Nov 8 2016 Sprawling upper ridge moves from the Great Basin to central plains this period.
342 AM EST Tue Nov 8 2016 High pressure will persist across the region through tonight.
359 AM EST Tue Nov 8 2016 A cold front will cross the area late this afternoon into tonight, producing widespread showers.
Ahead of a trough approaching the Mississippi River Valley, a weak impulse is rotating northward through Mississippi. Closer to the surface, easterly flow has reinforced the low level dry air, as evident in the 00Z sounding with a 0. Do have a few locations in the east falling into the lower 40s, but expect mostly mid 40s to mid 50s. Cooler temperatures are expected as we progress through the latter half of the week along with the airmass becoming drier once again.
Ridging and subsidence will quickly bring drying and clearing, such as has already spread into the area northwest of Sioux Falls this afternoon. Tuesday night looks quiet as high pressure drifts across the forecast area. Certainly would not rule out some lows in the mid 20s over the low lying areas in northwest IA. Then on Wednesday, winds will return out of the south and southwest as the high moves east of this area. However the wind direction is a good warming wind, so trended Wednesday's highs closer to warmer MOS values. Wednesday nights lows will be warmer when compared to Tuesday night due to the southerly flow moderating the air.
1243 PM EST Sat Feb 4 2017 High pressure will begin retreating to the east today, allowing southerly flow and warming temperatures on the back side of the high.
A warm and moist mid level air mass overrunning this cooler easterly-backed lower dome of air will maintain relatively lower ceilings through the period. As a weak warm front moves inland through early Sunday there will be periods of VLIFR (ceilings and vsbys) within light precipitation. Llvls will continue to saturate as a pseudo warm front makes its way inland tonight and Sunday morning. Warmer conditions and iso/sct shra can be expected during the day Sunday. 47 Winds/seas starting to come down this morning as high pressure continues to filter into the region. Models look to bring the next cold front into the bays/nearshore waters about mid week or so but the changes with the wind direction could be brief. The return of SE winds and low-level moisture overrunning the relatively cooler shelf waters are progged to be in place tonight thru Weds.
High pressure and a very dry airmass continue over the area. With increasing cloud cover moving over the fa tonight (decreasing radiational cooling) counter- balancing winds becoming light (enhancing radiational cooling) over the fa, temps warmer than the previous night are expected.
1118 AM CST Sat Feb 4 2017 High pressure sliding east of the area today will bring winds around from the south and bring temperatures up into the lower to middle 40s. Airmass behind this front won't be any cooler, in fact highs on Sunday will rise even warmer into the upper 40s and lower 50s.
Warmer temps in the Palouse and Lewiston are will bring rain to the region. Spokane and Coeur D'Alene areas have been kept cooler with the cloud cover blocking the radiational heating.
/LOWERED MAX T, HOURLY TEMPS/ Morning cooling continued after daybreak along I-35, where a steady stream of patchy drizzle is being detected on radar, and mesoscale ridging maintained NE surface winds. Upper air analysis last evening showed a low amplitude ridge over northern Mexico and Texas. At the surface, high pressure was centered to the northeast and winds were generally from the east through northeast across our CWA.
A warm front will move onshore overnight tonight into Sunday morning, causing temperatures to stay nearly stationary or even warm up through the night.
239 PM CST Sat Feb 4 2017 Cold front located just west of the I-29 corridor will continue to track east through southwest MN and northwest IA through the early evening hours. With subtle ridging nosing into south central SD late tonight, think there is good potential of clearing out in this area, while southwest MN and the Highway 14 corridor have the best potential for extended cloud cover. Cooler air will quickly filter across the region tonight, leading to colder low temperatures in the teens. With warming temperatures aloft and decreased snowpack in the Missouri Valley, there is good potential for this area to reach near or just above freezing on Sunday.
355 PM EST Sat Feb 4 2017 Canadian high pressure over the region shifts offshore tonight. an area of low pressure develops along the Mid Atlantic coast Sunday. dry cold front crosses the area Sunday night.
343 PM EST Sat Feb 4 2017 High pressure will move off East Coast tonight.
The 1 pm regional surface analysis showed a weak cold front progressing slowly southeastward across South FL, and a broad region of high pressure over much of the Southeast. There were no major short wave troughs upstream of our forecast area in the upper levels.
147 PM EST Sat Feb 4 2017 Cold high pressure will build across the region through Sunday.
1042 AM CST Sat Feb 4 2017 Cold high pressure across the region will slide east to the Atlantic seaboard this afternoon.
Surface/850 cold front passes later tonight though only weak CAA noted. Medium Low level ridging takes hold.
VFR conditions will be present through the TAF period with high pressure moving east.
Coastal front has wiggled back to the east allowing cooler air to push back into parts of metro Corpus. The boundary will oscillate east and west the next couple hours before a more concerted push to the northwest overnight as a warm front. Moisture returning into the cooler inland airmass should lead to locally dense fog tonight. For tonight expect readings to stay mainly steady inland with some rises possible from VCT-BEA as the warm front pushes in. For now went slightly warmer as a compromise.
108 PM EST Sat Feb 4 2017 Cold high pressure will build across the region through Sunday.
220 PM EST Sat Feb 4 2017 High pressure short lived as a more progressive pattern develops. Cold front mid week. High pressure to end work week. High pressure giving high cirrus with the sun poking through most of the day today. Tonight should be much warmer than last night as waa brings a warmer and moister air mass into the region. Moisture may be to limited by this time to produce anything, thus only the low POPs.
The upper level low offshore continues to send a series of waves across WA/OR. The warm air advection has allowed temperatures to increase into the mid to upper 30s in the mountains and valleys of central and eastern Oregon and far southeast Washington as well as the Lower Deschutes Plateau this morning while areas north have maintained temperatures in the teens and 20s. some areas will barely get above freezing this afternoon and most of the Kittitas and Yakima Valleys will be around the freezing mark. Will extend the freezing rain potential for some areas into the afternoon. Conditions will be mainly VFR but occasional MVFR can also be expected along with areas of light freezing rain and sleet except at Krdm and KBDN.
1044 AM MST Sat Feb 4 2017 Forecast soundings are indicating the potential for freezing drizzle tonight across the western SD plains. For now have changed patchy fog to areas of freezing fog, and expanded the area and timing.
404 PM EST Sat Feb 4 2017 A cold high pressure center will move off the Virginia and North Carolina coast tonight.
331 PM CST Sat Feb 4 2017 Southwest flow ahead of a weak cold front will bring a warmer night to the area. Cloud cover during the evening will also help to keep temperatures warmer than last night. Should see clouds slowly clear from the west late this evening and overnight, but the southerly flow should keep the low temperatures to near or just a couple of degrees below freezing. The cold front barely makes it through the area Sunday. This combined with the warmer start to the day will likely lead to warmer temperatures than today, even though the "cold front" will be south of the majority of the area across the Ozarks.
This means areas well to the west over the brush country can expect to remain quite cool in the lower to middle 50s while closer to the coast more mild conditions persist. Winds remain the issue as a coastal trough is currently entrenched between KCRP and KRBO. Really do not think this trough moves much farther west today and it could even move eastward a bit. KCRP could see some worsening conditions if the trough moves towards the coast. Cooler airmass to the west of the current trough would be the primed area for dense fog development as southeasterly winds eventually overtake the entire region very late tonight bringing in much higher dewpoints.
116 PM EST Sat Feb 4 2017 Cold high pressure will build across the region through Sunday.
945 AM MST Sat Feb 4 2017 Latest upper air analysis depicts nearly zonal flow across the CONUS, with a subtle short wave trough moving onto the Plains. At the surface a warm front was beginning to progress east across the Tri-State Area as winds shifted from south to west. Today the warm front will be east of the Tri-State Area before mid morning. Highs today will much warmer than yesterday, nearing record values for Goodland and Burlington.
High pressure will slowly shift east through Sunday. A few areas in SW NC could see temperatures cold enough at the surface for freezing rain before sunrise. temperatures will be a couple of degrees warmer than Saturday.
Only 62F at MFE right now, and HBV and APY have struggled to reach the low 50's, with the much cooler air trapped in that region. Stronger SSE winds should finally push the aforementioned boundary back NW through the entire area as the day goes on, with temps recovering back into the low 70s even in the far NW areas.
1147 AM CST Sat Feb 4 2017 As high pressure continues to translate eastward away from the area and low pressure deepens across the Central Plains, breezy southwest winds will develop across much of the area today. Low clouds may dampen the diurnal rise but temperatures are still expected to rise well above normal for early Feb with highs ranging from around 50 in extreme Southeast KS to the low 60s over Central KS.
1239 PM EST Sat Feb 4 2017 Aviation Low pressure will track north of Lower Michigan tonight bringing light snow into early Sunday.
Temperatures in the Lower Snake Plain will remain above freezing again tonight and through the day Sunday.
131 PM EST Sat Feb 4 2017 Cold high pressure will build across the region through Sunday.
1156 AM EST Sat Feb 4 2017 High pressure will cross the region today then move east tonight.
Gentle to moderate northeast breezes prevail, with higher wind speeds south of the Keys, especially over the lower Straits of Florida, where ships have been indicating wind gusts near 20 knots and significant wave heights of around six feet.
226 PM CST Sat Feb 4 2017 A gradual trend toward warmer and wetter weather will begin over the next 24 hours.
Went ahead and dropped the going winter weather advisory for the higher terrain as any additional snowfall should be minor through the remainder of the day.
As the warm front moves northward Sunday, maximums in the 60s look possible over the southern half where otherwise a cool day (as will be the case in the north) would have been in store.
/issued 1042 AM CST Sat Feb 4 2017/ Cold high pressure across the region will slide east to the Atlantic seaboard this afternoon.
Hi-res models such as the HRRR suggest patchy fog nearing/impacting portions of deep east TX and central LA overnight given the low level moistening Have therefore inserted a mention across the said areas. Concurrently, a warm front that is currently off the Gulf coast will retreat northward and impinge on the region and provide for a focus for isolated to scattered showers. Despite persistent cloudiness tomorrow, the presence of the warm front will once again promote a roller-coaster of temps with daytime temps warming into the 50s across far southeast OK to upper 60s across deep east TX.
Low temperatures generally in the low 20s to around 30, coldest in the valleys.
A warm front will move northward across the area this evening, and scattered showers are likely across much of the area after 05/06z. a warm front along the Gulf Coast will begin to move northward and should be oriented west to east along the I-20 corridor by 18z Sun. we begin to look west as an upper trough moves out of the Desert Southwest and into the Plains. isentropic lift with increasing southwesterly flow in the lower levels.
238 PM EST Sat Feb 4 2017 High pressure will shift offshore well south of New England tonight as a warm front passes by to the northwest of the region. Low pressure will move east through southern Canada Sunday and will drive a cold front through the region Sunday night as it continues east into the maritimes.
1247 PM EST Sat Feb 4 2017 High pressure will ridge into the north country today.
Meanwhile at the surface, the cold high pressure system will have moved eastward into the Red River Valley while a low pressure trough sets up a baroclinic zone west-to-east across northern ND.
Low pressure will track across eastern Ontario and western Quebec on Sunday. Temperatures will climb just above freezing in most places by early afternoon so any accumulations with this weak system will be generally less than an inch. High pressure and dryer air build in rapidly overnight Sunday and temperatures will be only marginally cold enough for a significant lake effect response.
The overnight lows were signifantly warmer than the previous night, by around 15F-20F degrees, mainly due to the westerly flow and cloud cover. Therefore the day is beginning warmer. Templer Previous discussion - Synoptic Setup: Short term begins with the high plains of the CONUS in a zonal flow pattern with relatively warmer air. Upstream, flow over British Columbia becomes a trough which dips off the coast into a low. Over the Pacific Northwest a meso-ridge has formed in response.
137 PM EST Sat Feb 4 2017 High pressure short lived as a more progressive pattern develops. High pressure giving high cirrus with the sun poking through most of the day today. Tonight should be much warmer than last night as waa brings a warmer and moister air mass into the region.
740 AM EDT MON JUN 27 2016 A cold front will move slowly across the area today and Tuesday. High pressure will bring a period of drier weather for mid week. While the cold front is not accompanied by much of a temperature change, it is being accompanied by a narrow ribbon of anomalous PWAT over 2 inches, or some 1-3 std dev above normal. Models show the cold front slowing to a crawl as it moves over central Pa tonight and Tuesday. This will be near normal over the SE, but several degrees cooler than normal over the NW.
/ISSUED / Upper air analysis from 00z soundings and current water vapor imagery shows a weak upper low over west Texas and upper level ridge over the Arklatex. Both features should weaken today as upper level ridge over the 4 corners and southern Rockies becomes more established. By Tuesday an upper level trough should deepen over the Great Lakes with the ridge stretching from the Great Basin to southern Rockies.
/issued 935 AM CDT MON JUN 27 2016/ Sending a forecast update this morning to increase PoPs areawide as the upper low and daytime heating continue to generate widespread showers and thunderstorms.
740 AM EDT MON JUN 27 2016 A cold front will be nearing northwest Ohio this evening and will cross the area tonight.
High pressure over the interior west will sustain hot temperatures early this week. An inverted trough rotating around the western edge of the high-amplitude ridge will spread significant mid-level moisture into Southern Utah beginning Monday evening. This trough is currently located over southern Arizona, and will move north through the next 24 hours. Since the low levels will remain relatively dry, gusty outflow winds and dry lighting are probable in association with thunderstorm activity over much of the southern CWA, particularly near high terrain.
Above normal temperatures and dry conditions across Northwest California will persist this week as a ridge of high pressure remains over the western states. due to the current upper level ridge building aloft over the western states.