Aikyam-Lab/Synoptic-Bench huggingface dataset:
426 AM EST Fri Nov 10 2017 Dry Canadian high pressure will build across the region today and Saturday.
107 AM EST Fri Nov 10 2017 High pressure along with cold dry air will build into the area Friday and Saturday.
The front will push south through the area, followed by strong high pressure currently over the northern Plains, moving east across the Upper Midwest and Great Lakes region tonight through Friday evening. The strong high pressure system will continue east reaching the east coast early in the weekend.
A strong upper level low is moving onto the PacNW coast this morning, and will spread showers to most of the area today and tonight. As the upper level low exits to the east late tonight, it will take most of the showers with it. Brief ridging aloft tomorrow will allow for a few degrees of warming over most of the area. A cold front will move through tonight, associated with the first upper level low.
347 AM EST Fri Nov 10 2017 Light lake effect snow showers will gradually diminish through the day as high pressure builds into the area.
Upper air analysis last evening showed a low amplitude trough and ridge pattern over the southern part of the country with west- northwesterly flow over Texas. At the surface, high pressure was centered over Northeastern Texas and the pressure gradient was weak. The low level flow will be from the east to southeast today and tonight. Saturday the low level flow will become more southeasterly and this will begin to bring Gulf moisture back into the region.
Generally sided towards the higher end of guidance for winds today, closely following the NSSLWRF values. Some of the higher ridge tops may butt up against low end criteria with sustained values, but largely looking at just a typical windy day across the northern plains. There will still be southerly breezes and warm air advection ahead of this trough so lows should stay up in the upper teens to low 20s for most areas. So, could be looking at one of these scenarios where ABR's temps drop several degrees around sunrise as winds go light within the trough axis.
TES A cold front pushed through most of eastern Missouri and southwest Illinois this afternoon. High pressure will build into the region behind the front bringing the coldest air of the season so far. LJB A sunny but cold day is ahead Friday for the bi-state region with lighter winds as 1038 mb Canadian high pressure settles into the western Great Lakes. Highs Friday to range from the mid to upper 30s north of St Louis/I-70 to the lower 40s south with mid 40s far southern reaches of CWA.
1251 AM EST Fri Nov 10 2017 Arctic high pressure will build into the area today through Saturday night, bringing the first freeze of the season. The passage of a dry cold front and advection of much colder air into the region should hold off until after daybreak Friday. A Freeze Watch will be issued for all of central NC for Friday night through Saturday morning as cold and very dry high pressure builds across the Great Lakes and surges south down the Atlantic coast.
An upper low remains off the pacific northwest coast this evening but it will be weakening and will come ashore by tomorrow morning. The low is sending a front into the area tonight, a few hours slower than the forecast was suggesting so have slowed the progression of showers through tomorrow morning.
115 AM EST Fri Nov 10 2017 A sharp cold front will sweep through the region overnight, bringing the first Arctic airmass of the season for Friday and Saturday.
In the wake of the cold front temperatures will be slightly cooler today with highs ranging from the upper 50s in far southwest Missouri, to just the lower to middle 40s across portions of central Missouri and into the eastern Ozarks.
Combination of falling snow and gusty south winds late Friday morning into the evening will cause some lower areas of vsby from falling snow/blowing snow, mainly north of the highway 2 corridor.
A reinforcing cold front has pushed through the region. though some of north Mississippi may creep into the low 60s. A weak broad midlevel ridge will shift east as well. Surface winds will shift Southerly Saturday resulting in warmer conditions. After a cold morning featuring temperatures in the low to middle 30s highs Saturday will soar around 25 degrees resulting in highs upper 50s to middle 60s.
Warm air advection occurs in the low and mid levels.
Low level upslope flow has really been persistent across the plains today, holding temperatures back and keeping some low clouds around across parts of the lower Arkansas River Valley. The low clouds and fog will linger into the morning hours, making for a slow rise in temperatures on Friday. Some of the high res models have shallow but cool, moist upslope holding on over parts of the lower Arkansas Valley through the day. This will tend to hold high temperatures back along the Highway 50 corridor through the lower Arkansas River Valley. For the areas where the cool, stable air manages to retreat, a much warmer airmass should bring temperatures back up to near or above average levels.
Cold high pressure had settled into the Northern Plains and western Great Lakes this morning, with thermal trough extending into western Iowa and eastern Nebraska. However abundant cloud cover should keep temperatures from climbing much above freezing this afternoon.
221 AM EST Fri Nov 10 2017 Dry cold front has rushed through the state early this morning, now bringing in much colder and drier air in its wake. The high pressure creating these winds will shift east northeastward Saturday, turning our winds more southerly by late day, and consequently allowing a quick warmup. Expect high temperatures roughly 10 degrees warmer than today, after what likely will be our coldest morning of the season so far.
A much cooler and drier airmass has moved into the area in the wake of the front and will continue through Friday. Lows tonight will range from the low to mid 40s inland to around 50 along the coast.
1007 PM MST Thu Nov 9 2017 A Pacific low pressure trough will bring snow to the western mountains tonight through Friday with brisk west to southwest winds over the upper mountain ridges and passes. The snow in the western mountains will taper off Friday night with a break before a second Pacific trough moves in and produces another round of generally light snowfall Saturday.
A weak surface boundary stretched west to east along the Oklahoma Kansas border through Southern Missouri and across the Ohio River Valley to a low pressure over Eastern Ontario this evening. will keep overnight temperatures slightly warmer compared to last night with lows in the 30s forecast for most locations.
1245 AM EST Fri Nov 10 2017 Strong cold front tonight.
Latest surface analysis shows low pressure situated over southern Alberta with high pressure over Minnesota. Large temperature gradient for highs today from the lower 20s around the Turtle Mountains, to the mid 40s far southwest. Expect some light snow associated with the track of the low, but any accumulations will be confined to the far northern tier counties with mostly trace amounts, to maybe another tenth or two of accumulation.
Taking a look at the latest surface analysis, the high is set up over the eastern third of ND, with a ridge extending across the eastern third of SD and into our west central MN counties.
MaxT today will be 20-25F cooler than yesterday as values struggle to get much past freezing. High pressure gets closer allowing the sky to clear and mercury to drop like a rock with nighttime inversion shutting off mixing and allowing winds to become light. High pressure moving east of the upper Ohio valley Saturday will allow return flow and warm advection after a record breaking Saturday morning. Sunshine Saturday will make it look warmer than it will be as temps still remain in the 30s with H8 temps staying below 0C. Low level warm advection will facilitate ridge tops warming during the overnight hours, however most locations should expect another frosty morning with 20s widespread.
346 AM EST Fri Nov 10 2017 High pressure will bring an unseasonably cold airmass to the region today and tonight.
N/NE winds have stayed up around 5 to 10 mph along the southern periphery of the ridge, which has kept temperatures ever so slightly "warmer" than areas further north, nearer the Iowa/Missouri border closer to the ridge center where winds are a bit calmer. Expect temperatures to drop into the teens this morning north of I-70, with temperatures generally in the lower to middle 20s along and south of I-70. As the ridge continues to lumber eastward winds will come back around to the east then to the southeast by mid day.
As of 01z, temperatures were in the upper 40s to lower 50s with dewpoints in the low/mid 40s. The quiet and tranquil wx pattern will definitely continue into the end of the work week, as a strong dome of high pressure out of the nrn/mid Plains states begins to build towards the SE in the wake of the dry frontal passage.
In the upper levels nearly zonal flow is over the Southeast as a trough moves over the Atlantic. Highs will be in the lower 70s and upper 60s.
Highs today will be considerably cooler than yesterday's, in spite of abundant sunshine. Tomorrow night will be the coldest of the upcoming 7-day forecast, with all of Middle Tennessee expected to fall to or below freezing. High pressure will slide off to the east early Saturday, with return flow bringing warmer temperatures for the weekend.
Surface cold front to the northwest of the region will continue to move southeastward tonight. Readings west of I-65 were generally in the lower 40s. Surface cold front will continue to sink south and eastward overnight and winds will shift firmly to the northwest and pick up a little bit. However, a dry cold front will move through tonight bringing a quick shot of much colder air. Lows Friday night will be well below normal as lighter winds and dewpoints in the teens will allow temperatures to fall into the lower to mid 20s. Southerly return flow will set up on Saturday resulting in high temperatures about 10 degrees warmer than we will have on Friday.
213 AM EST Fri Nov 10 2017 A cold front will move across the region this evening. High pressure and cold, dry air will build in for the end of the week.
Primarily zonal flow aloft will resume through the near term as an upper high pressure ridge becomes reestablished across the Gulf of Mexico. The strong high pressure will maintain the north to northeast winds, reinforcing the very cool temperatures across the region, and keep the area dry.
The high temperature tomorrow will be quite tricky as some guidance keeps the Panhandles under low clouds through the day, only allowing us to top out in the low 50s, whereas if we can clear out in the afternoon with a few hours of heating, the lower to mid 60s is also possible. Have trended between, with mid to upper 50s as the high. High pressure to the south will continue to be suppressed into a more westerly flow pattern with southwest flow in place at times.
Specifically, a relatively broad but flat ridge exists across the Great Plains while a more modest wave is pushing into the Pacific Northwest states. This will allow low clouds and some patchy drizzle to expand over the remainder of the region as persistent isentropic lift/warm air advection exist in the low- levels. On the positive side this will keep temperatures a little warmer overnight with lows in the upper 30s to 40s expected. Saturday will then see yet another cold front sag southward into southwest Kansas in response to the aforementioned wave over the Pacific Northwest, sliding east into the Northern Plains. This along with lingering cloud cover may limit temperatures with highs varying from the upper 40s to mid 50s at the low end, to the upper 50s to mid 60s at the high end.
Tonight, the lee trough will deepen across the central and southern high plains. The low-level jet will advect residual moisture across north TX and OK northward into central KS after midnight.
High pressure is going to be over Indiana tonight into Saturday.
Surface cold front now analyzed across the northern Gulf of Mexico where it extends northeast into the northern portion of the Florida Peninsula.
MAV and MET guidance is very cold overnight but may be a bit too aggressive in the cooling given the increasing clouds and have gone a bit warmer closer to the blended guidance.
200 AM EST Fri Nov 10 2017 A sharp cold front will sweep through the region overnight, bringing the first Arctic airmass of the season for Friday and Saturday.
Otherwise, the forecast is on track for temperatures to hold or even begin to rise tonight as much warmer air moves over the Upper Midwest. A cold front should go through during the late afternoon, but advection behind it will be weak enough to preclude a drop off in temps.
For forecast area, will see light north winds veer to the east today and eventually to the southeast by tonight as ridge exits region. With the increasing clouds and southeast winds, lows tonight will be warmer, in the 25 to 30 degree range, but still about 10 degrees below normal.
Aloft: Low-amplitude WNW flow was over the Cntrl Plns with an approaching ridge that extended from MT-NM. This ridge will deamplify and broaden as it crests over the CWA tonight. Surface: The cold front that moved thru overnight extended from the GtLakes thru MO into NM at 18Z. This high will gradually slide E into WI tonight and the GtLakes tomorrow. The remnant trof will cross the CWA Sat night. A ridge will follow Sun with WSW-W flow Mon-Wed. Surface: a weak cool front will slide thru Sat associated with the upr trof.
334 AM EST Fri Nov 10 2017 Arctic high pressure will build into the area today through Saturday night, bringing the first freeze of the season.
1145 PM CST Thu Nov 9 2017 A cold front is currently pushing through the region this afternoon. The coldest readings will be across central Missouri where readings in the low 20s are expected.
Low temperatures overnight will drop into the upper teens to the lower 20s. Cold front moving through the forecast area this afternoon but latest KIWX radar loop showing just a few returns north of the CWA so have cut back on POPs remainder of the afternoon as front pushes through NE CWA. Water vapor imagery depicting strong upper low just off the Pacific NW coast will weaken significantly as it comes onshore Friday and quickly traverse western/mountain CONUS and provide short wave energy that will affect our area for this weekend. Surface reflection in the form of inverted trof will bring precip chances back by Saturday night.
As the main upper low propagates eastward tonight, light snow chances continue near the International border. Saturday night high pressure begins to build over the Northern Plains.
The lower ceilings we have seen across the area is beginning to lift slowly and we should see clear skies across the state tonight. Drier cooler air will spread across the region tonight and Friday as strong high pressure builds into the southeast U.
1150 PM CST Thu Nov 9 2017 A surface cold front continued to push through Kansas this afternoon, extending from south of Ottawa to just south of Wichita to just south of Dodge City. The latest global and mesoscale models suggest this axis of low cloud will mainly affect central and south central KS, with southeast and east central KS remaining cloud- free in the lower troposphere. Far southeast KS along the OK border should warm up to the mid 50s with a little more direct insolation expected east of the low cloud axis. Despite the low clouds and drizzle, warm advection at the surface will be just enough to warm most areas up to the lower to mid 50s for highs Saturday.
A westerly flow aloft will prevail across the Western High Plains tonight as a weakening upper level ridge kicks east across the Central Plains. Even with increasing cloud cover, should see lows down into the 20s(F) across central Kansas to the lower to mid 30s(F) in extreme southwest Kansas. Should see highs only up into the 40s(F) across central Kansas with highs pushing the 50s(F) in extreme southwest Kansas, to possibly the lower 60s(F) if enough sunshine occurs.
With the expected sky cover, I lowered highs from guidance for highs today, and went on the high side for lows tonight. Lows tonight will generally be in the mid to upper 30s, so it does not appear that freezing drizzle should be an issue.
341 AM CST Fri Nov 10 2017 Yesterdays cold front has dropped south of the Ohio River Valley this morning with plenty of cold air in the Midwest underneath the building ridge. A swath of mid/high clouds moving through the region has limited the cooling somewhat this morning, but even so, temps have dropped into the low 20s/upper teens.
VFR conditions to prevail through around 08z to 09z when low ceilings will build in behind a cold front. Slightly cooler drier air will move into the Nature Coast and central Florida during Friday and with extra clouds high temperatures should be near to below normal. The low ceilings are expected to linger into midday then some improvement expected during the afternoon with mainly VFR conditions returning.
Overnight lows will be in the low to mid 40s. (Rest of the day) The fog will slowly begin to dissipate, but expect the low clouds to hang around for much of the morning before they begin to thin out by the early afternoon.
330 AM CST Fri Nov 10 2017 06Z surface data has high pressure across the Midwest.
Dry Canadian high pressure will build across the region today and Saturday.
The cold front has pushed a little further southeast, pushing past Apalachicola, FL, Tallahassee, FL, and Valdosta, GA at this point. Overnight, cooler air will begin to move in, though cloud cover through a good part of the night will prevent us from dropping below 45. Highs will be slightly cooler than normal with highs in the upper 60s to low 70s on Friday and lower 60s to lower 70s on Saturday. Lows will be in the lower 40s to mid 50s.
This east to northeast flow will continue into Saturday bringing much cooler temperatures. Overnight lows tonight will drop into the 30s across most of north Georgia with some areas seeing freezing. At this time there is some uncertainty with the coverage of sub freezing temperatures so at this time will hold off on a Freeze Warning.
141 AM EST Fri Nov 10 2017 Arctic high pressure will build into the area today through Saturday night, bringing the first freeze of the season.
This light southerly breeze, coupled with the continuing presence of mid level clouds, will lead to temperatures a shade warmer than guidance. The shifting low level winds will usher in some slightly drier air in the low layers below 700mb as the next short wave advances in from the western plains.
454 AM EST Fri Nov 10 2017 A strong cold front will cross the area early this morning. High pressure will then build across the region through the weekend. The cold front will cross the forecast area between now and 8-9am. The cold front will have isolated thunderstorms with the very cold air aloft, gusts in the 40 to 50 mph range, and a rapid changeover to snow. Strong low pressure will cross Labrador Saturday while high pressure builds toward the region. However, with building high pressure and the relaxing pressure gradient, winds will begin to decrease later in the afternoon.
Clear and dry conditions are expected to persist today and Saturday with high pressure in place.
1130 PM CST Thu Nov 9 2017 Cold high pressure continues to slowly drift east tonight, setting us up for southeasterly flow on Friday. And while lows may drop to around 32 in some areas, by the time the drizzle begins, it should warm to above freezing. Patchy drizzle may continue Saturday morning, but measurable rain chances do increases a bit by Saturday afternoon and evening as a trough moving out of the Rockies helps to push a cold front through the area.
305 AM CST Fri Nov 10 2017 The forecast area will remain under zonal flow through the upcoming week as upper level high pressure will remain centered over northern Mexico and adjacent eastern Pacific waters while the southern jet stream will be quasi-stationary across the middle tier of the CONUS. With a bit stronger winds veered toward southwest ahead of a cold front moving southward through the central High Plains temperatures will spike into the 70s areawide Saturday afternoon. Despite the low level moisture in place ahead of the front mid levels will be warm and dry with precipitation chances limited.
356 AM CST Fri Nov 10 2017 Backdoor cold front pushing through northeast OK and northwest AR with slightly drier low level airmass evident north of I-40. Moisture will begin to increase again later tonight and especially Saturday likely resulting in widespread low clouds expanding during the day which will lead to slightly cooler afternoon temps.
326 AM EST Fri Nov 10 2017 The expected cold front is currently moving through Central Florida. The front stays put for several days, as high pressure builds over the great lakes region and slowly shifts over New England.
With the low clouds in place, fog will be tougher to develop, although a little patchy fog may develop across the western Concho valley and Edwards Plateau, mainly west of a Sweetwater to San Angelo to Ozona line. (Saturday through Friday morning) The low clouds from Friday night are expected to continue through most of Saturday morning and into the early afternoon hours.
Temperature-wise, the official observations recorded high temperatures in the low 60s at BRO, HRL, and MFE with overcast skies and continued cold air advection in the wake of the recent cold front. After a dip of only a couple of degrees tonight, temperatures on Saturday should be several degrees warmer as an onshore flow and decreased cloudiness results from the inland progression of the trough.
344 PM EST Thu Jan 11 2018 Warm weather has dampened with rainfall and will become much colder with passage of a late Friday cold front. Rain will continue to spread over the remainder of the area this evening, and continue through the night as broad ascent is maintained ahead of the high-amplitude trough sliding eastward.
A cold front is developing ahead of a deepening upper trough centered through the Plains this afternoon. The cold front is expected to advance eastward roughly on a line from near Birmingham to Pensacola by 12z.
Tonight, showers and MVFR cigs will return with the approach of a cold front. The cold front will bring a wind shift to CKV around 07Z and BNA and MQY around 10Z. Just after this taf period, much colder air will move in with freezing and frozen precipitation likely.
/issued 512 AM CST Thu Jan 11 2018/ /12Z TAFS/ A cold front will move rapidly south across West Central Texas this morning. /issued 348 AM CST Thu Jan 11 2018/ (Today and Tonight) A strong cold front is on track to move across the area this morning.
Have issued a Wind Chill Advisory for much of southern MN, but warmer temps and lesser winds will allow the metro into western WI to remain warmer than advisory criteria tonight. There will be a wave passing through the Dakotas tomorrow, but high pressure pushing in form the north will keep any snow to the west of our area.
The high pressure system to our north will usher in ample cold air advection associated with an Arctic airmass tonight, which will allow for low temperatures to plummet into the single digits across the northern portions of the CWA.
/issued 1129 AM EST Thu Jan 11 2018/ Latest IR satellite imagery shows a closed low continuing to spin counter-clockwise between the southern Florida peninsula and the Bahamas.
Latest upper analysis shows a trough over central North America with the trough axis currently moving eastward and away from the forecast area. At the surface, cold high pressure is moving into the region from the northwest. The winds will diminish some this afternoon but cold temperatures will remain, with the afternoon highs ranging from the lower 20s over parts of northeastern Wyoming and the Black Hills, the the single digits above zero over northwestern South Dakota.