Aikyam-Lab/Synoptic-Bench huggingface dataset:
306 PM CST Fri Feb 26 2021 It's been another mild day today, although winds have been strong, gusting 25 to 40 mph across the area, in response to a strong pressure gradient between high pressure over the Northeast and low pressure extending from Ontario back through the northern plains. There will be some increase in mid/high cloud cover and mixing won't be terribly deep, but think mid to upper 40s is likely for areas near and east of the MS River through central WI, and a bit cooler west of the MS River.
522 PM CST Fri Feb 26 2021 Low-level moisture will increase across the region tonight as a warm front sharpens up and shifts north into the Corn Belt region. Winds will increase out of the south during the late morning and afternoon as low pressure develops across the central high plains. Middle 60s appear quite possible along the I-49 corridor and along the Highway 54 corridor where less in the way of afternoon cloud cover is expected.
738 PM EST Fri Feb 26 2021 High pressure will track east of the area this evening. A weak area of low pressure lifting up the east coast and an upper level disturbance approaching from the Ohio River Valley tonight into Saturday will bring wet snow or mixed precipitation, changing to some rain showers Saturday morning. An area of high pressure will bring fair and dry weather for Saturday afternoon and the first half of Sat night.
316 PM MST Fri Feb 26 2021 Today, a cold front will continue moving across the Tri-State area in the first of a series of troughs and cold fronts. The cold front is currently expected to move through the area before mid- afternoon.
828 PM EST Fri Feb 26 2021 A series of crossing low pressure troughs is return rain to the Upper Ohio River Valley for the weekend. In eastern Tucker, continued dynamic cooling on southeasterly sfc flow will maintain the likelihood of some freezing rain, so a Winter Weather Advisory will remain in effect.
628 PM MST Fri Feb 26 2021 Went ahead a cancelled the High Wind Warnings early this evening with gusts 35 to 45 mph lingering this evening and continuously diminishing over the next few hours. The Pine Ridge, extending across far east- central Wyoming into northwest Nebraska looks like it'll receive around 3 inches of snow. Model trends have trended a little lower on wind speeds this afternoon and this evening, but a bit higher for Saturday as the main cold front moves across the region.
318 PM MST Fri Feb 26 2021 Second midlevel trough beginning to impact western WY currently, with continued snowfall across the western mountains and valleys. Tonight, the leading edge of the trough will be well to the southeast, allowing snowfall to gradually decrease through the night. Cooler air will move in behind Saturday as the trough draws along a cold front, leading to temperatures 5 to 10 degrees cooler than today. Saturday night will see the back edge of the trough move through, with a larger ridge building across the northwest US.
97 Radar echoes are expected to ramp up in coverage this evening into tonight as rain and snow showers, and eventually just snow showers, push through the region with a cold front.
This while drive a cold front/pseudo dry line across the region. Expect above normal temps across the region, with highs climbing into the low to mid 60s tomorrow.
The low cloud deck will expand back across the entire region into the overnight, in addition to fog development as we go through the overnight and into Saturday morning. This will occur as the front positioned to the south lifts northward as a warm front across the area.
windy over the higher terrain today, with occasional gusts over 40 kts through the passes of the central mountains, and 30-40 kts over the upper Arkansas Valley. Winds on the plains have gusted 20-30 kts at times this afternoon, though areas around Colorado Springs have seen some periods of light ely flow as a weak rotor circulation has apparently developed downstream of the high terrain. Upper wave passes quickly through the nrn Rockies into the nrn Plains tonight and Saturday, pushing a cold front south through the area Sat afternoon. Max temps tricky tomorrow with cold front and cold advection in the afternoon, though NBM looked slightly too cool given good mixing, and nudged maxes up a few degf toward warmer MOS guidance.
There will be a little bit of a PoP gradient, with the higher values favoring areas across northwest Alabama and southern Middle Tennessee, closer to the boundary.
High pressure will remain in place through the weekend with a weak frontal boundary stalled well to the north of the forecast are.
648 PM EST Fri Feb 26 2021 High pressure will track east of the area this evening. A weak area of low pressure lifting up the east coast and an upper level disturbance approaching from the Ohio River Valley tonight into Saturday will bring wet snow or mixed precipitation, changing to some rain showers Saturday morning. An area of high pressure will bring fair and dry weather for Saturday afternoon and the first half of Sat night.
1244 AM EST Sat Feb 27 2021 High pressure will track east of the area this evening. A weak area of low pressure lifting up the east coast and an upper level disturbance approaching from the Ohio River Valley tonight into Saturday will bring wet snow or mixed precipitation, changing to some rain showers Saturday morning. An area of high pressure will bring fair and dry weather for Saturday afternoon and the first half of Sat night.
1020 PM EST Fri Feb 26 2021 Currently - Weak ridging across Florida is being reinforced by another high moving off the Atlantic Coast. Deep layered ridging is in place and this evenings sounding indicated a strong subsidence inversion based around 750 mb with significant dry air above. Short Term Update - The ridge axis across Florida will continue to strengthen overnight. Rain chances will remain slim due to the dominating ridge. A strengthening ridge across Florida will result in freshening easterly breezes on Keys waters.
/Issued 925 PM EST Fri Feb 26 2021/ A wedge of high pressure is in place across northeast portions of the CWA.
The frontal boundary to the south does not move much overnight but another warm front to the north lifts northward. Conditions should improve to MVFR at all sites by mid-day Saturday as the warm front and main precipitation shield lifts north of our sites. JB Chattanooga Airport, TN 71 60 73 53 58 / 40 30 70 90 50 Knoxville McGhee Tyson Airport, TN 66 57 71 50 55 / 50 40 80 90 50 Oak Ridge, TN 64 56 69 49 55 / 60 50 90 90 30 Tri Cities Airport, TN 63 52 71 49 54 / 60 50 80 90 50.
Only break from the heat will be along the immediate coast with afternoon seabreezes bringing cooler shelf water air into those locations. High pressure remains stretched over the region from the W Atlantic with light to moderate SE-SW winds and seas 2-3 ft or less through the weekend and into Mon.
Broad southwest to northeast upper jet energy from the southern plains into the Great Lakes region early this morning, with another jet streak diving southeast on the western periphery of a developing upper trough. Combination of Pacific moisture aloft from the southwest and Gulf moisture in the low levels from the south will bring PW values over the southern 2 tiers of counties into the 1. A cold front will also approach from the west and move through the area overnight.
The frontal boundary to the south does not move much overnight but another warm front to the north lifts northward.
1031 PM MST Fri Feb 26 2021 Second midlevel trough beginning to impact western WY currently, with continued snowfall across the western mountains and valleys. Tonight, the leading edge of the trough will be well to the southeast, allowing snowfall to gradually decrease through the night. Cooler air will move in behind Saturday as the trough draws along a cold front, leading to temperatures 5 to 10 degrees cooler than today. Saturday night will see the back edge of the trough move through, with a larger ridge building across the northwest US.
152 AM MST Sat Feb 27 2021 Surface cold front remains north of our cwa and as of 130 am is located roughly from Great Falls to Jordan and Glendive. Remaining lower elevations will see snow showers become focused along backdooring cold front, aided by steep (~8 C/km) mid level lapse rates.
356 AM EST Sat Feb 27 2021 A series of crossing low pressure troughs will return periodic rain to the Upper Ohio River Valley for the weekend. Areas in eastern Tucker County WV remain near freezing, where a period of freezing rain could result in a light glaze of ice.
Overnight lows not expected to fall lower than the lower to mid 60s, with near 60 across the coast due to the cooler shelf waters. High pressure is centered near the mid Atlantic coast this afternoon with a frontal boundary stalled from South Texas through central Mississippi and Alabama. A warm and moist air mass continues to be pushed across the cooler gulf shelf waters between the front and ridge keeping areas of fog over the coastal waters through most of the day. Also tonight and into Saturday the front will begin to lift back north as low pressure develops in the central plains.
1146 PM EST Fri Feb 26 2021 A series of crossing low pressure troughs will return rain to the Upper Ohio River Valley for the weekend. In eastern Tucker, continued dynamic cooling on southeasterly sfc flow will maintain the likelihood of some freezing rain, so a Winter Weather Advisory will remain in effect.
Seeing snow associated with the low pressure system move through the upper Snake Plain this evening. For this reason have issued a special weather statement for the lower Snake Plain and decided to extend the eastern winter weather advisories through the night.
326 AM EST Sat Feb 27 2021 Today warms back up as offshore high pressure pushes a warm front to our north.
1106 PM CST Fri Feb 26 2021 Low-level moisture will increase across the region tonight as a warm front sharpens up and shifts north into the Corn Belt region. Winds will increase out of the south during the late morning and afternoon as low pressure develops across the central high plains. Middle 60s appear quite possible along the I-49 corridor and along the Highway 54 corridor where less in the way of afternoon cloud cover is expected.
Meanwhile farther west, winds will veer during the afternoon ahead of a cold front, bringing drier air into the parts of western/northwestern which will elevate fire weather concerns. The cold front is expected to advance southeast across the area overnight, bringing in some cooler air for the second half of the weekend.
1053 PM CST Fri Feb 26 2021 It's been another mild day today, although winds have been strong, gusting 25 to 40 mph across the area, in response to a strong pressure gradient between high pressure over the Northeast and low pressure extending from Ontario back through the northern plains. There will be some increase in mid/high cloud cover and mixing won't be terribly deep, but think mid to upper 40s is likely for areas near and east of the MS River through central WI, and a bit cooler west of the MS River.
900 PM MST Fri Feb 26 2021 Today, a cold front will continue moving across the Tri-State area in the first of a series of troughs and cold fronts. The cold front is currently expected to move through the area before mid- afternoon.
An upper level wave and surface cold front are poised to move into the forecast area today. Ahead of the cold front, winds will be easterly during the morning, turning toward the south then to the west during the afternoon.
Cold front is taking its sweet time moving into the area. Overnight temperatures look to stay mainly in the lower 20s.
1015 PM MST Fri Feb 26 2021 Went ahead and cancelled the High Wind Warnings early this evening with gusts 35 to 45 mph lingering this evening and continuously diminishing over the next few hours. The Pine Ridge, extending across far east- central Wyoming into northwest Nebraska looks like it'll receive around 3 inches of snow. Model trends have trended a little lower on wind speeds this afternoon and this evening, but a bit higher for Saturday as the main cold front moves across the region.
Then the rain chances will increase beginning late this afternoon as the trough seen early this morning on water vapor moves east increasing ascent across the area. Did not change temperatures today into Sunday as highs today still look to climb into the upper 50s to lows 60s and temperatures on Sunday will range from the upper 40s to the lower 60s as the front moves across the area.
For today into tonight, look for much cooler temperatures in the wake of a clipper system.
Moisture convergence / frontogenesis will increase Sunday afternoon and evening, with heavy rain threat tracking south along and advancing cold front. 75 inches and training potential along a slow-moving cold front will increase the flooding threat along and south of I-40 through late Sunday evening.
Low pressure initially over eastern CO will track toward north central KS by late afternoon and strengthen. Brisk northwest winds are expected for our area on the backside of the low later tonight and Sunday. Highs Sunday should reach the upper 30s to mid 40s with lows Sunday night dropping to the lower and mid 20s.
424 AM EST Sat Feb 27 2021 High pressure will track east of the area this evening. A weak area of low pressure lifting up the east coast and an upper level disturbance approaching from the Ohio River Valley tonight into Saturday will bring wet snow or mixed precipitation, changing to some rain showers Saturday morning. An area of high pressure will bring fair and dry weather for Saturday afternoon and the first half of Sat night. Another weak area of low pressure and associated warm front will bring periods of rain Sunday as it pass just south of Pennsylvania.
In addition, periods of gusty north winds may develop across exposed ridges and coastal areas through tonight.
Zonal flow aloft with an upper lvl low and associated trof in the central Rockies. Temperatures today will again be above normal for this time of year with upper 70s to near 80 as the warm front to the north moves into northern Arkansas by this evening.
Big player in all this will be warm front moving well north tonight, shifting the heavier rain axis up into the OH valley. But trailing this warm front is a cold front that will drop into the mid-state later Sun, and then work south of us overnight. All this rain will end early Mon as the cold front moves well south and east. A warm front lifting north will spark SHRA and perhaps TSRA after 23z at the sites, followed by a drier period after 06z Sun.
A continued push inland is expected this morning with the warm front through the area by late morning. Tomorrow, will begin to see deeper moisture pooling ahead of an approaching cold front though, and should see the development of isolated showers and possible a thunderstorms by mid to late afternoon as instability increases.
Lows generally in the middle to upper 60s will occur this morning and Sunday morning, with a few locations only falling into the lower 70s.
Big player in all this will be warm front moving well north tonight, shifting the heavier rain axis up into the OH valley. But trailing this warm front is a cold front that will drop into the mid-state later Sun, and then work south of us overnight. All this rain will end early Mon as the cold front moves well south and east. Look for the rainfall to redevelop again around 00Z as a warm front lifts northward.
546 AM EST Sat Feb 27 2021 A series of crossing low pressure troughs will return periodic rain to the Upper Ohio River Valley for the weekend. Areas in eastern Tucker County WV remain near freezing, where a period of freezing rain could result in a light glaze of ice.
655 AM EST Sat Feb 27 2021 A series of crossing low pressure troughs will return periodic rain to the Upper Ohio River Valley for the weekend.
/issued 326 AM CST Sat Feb 27 2021/ Upper ridge centered over Cuba this morning and extending northward across the East Coast giving way to upper trough moving down across the Great Basin.
An upper level wave and surface cold front are poised to move into the forecast area today. Ahead of the cold front, winds will be easterly during the morning, turning toward the south then to the west during the afternoon. Clouds will diminish and temperatures will be a little cooler.
At the same time, sfc warm front lies across central TX, with unseasonably moist airmass characterized by dew points near 70 in parts of far southeast TX. Cold front will push south later tonight and Sunday morning, with a better signal in latest model runs for additional convection developing along the front tonight.
20 (Today and tonight) A warm front is moving slowly north across the area, bringing slightly warmer temperatures, and more importantly, increased low level moisture. The low clouds and fog will continue to move slowly northward this morning, likely affecting much of the Concho Valley, and potentially areas as far north as the I-20 corridor.
With H85 temps between -6C and -10C on Sunday, expect a cooler day, though still mild for late February.
Expect cooler temperatures and breezy westerly winds today, ahead of a cold front due by tonight. This cold front will deliver a slight chance of snow showers on Sunday, with colder temperatures and gusty north winds.
602 AM EST Sat Feb 27 2021 Today warms back up as offshore high pressure pushes a warm front to our north.
312 AM MST Sat Feb 27 2021 With a low cloud deck and widespread north winds in place, the cold front has arrived over the region. Overnight tonight and into Sunday morning, the cold air mass will be retreating toward the east, making way for a broad, building ridge of warm, dry, high pressure from the west.
Afterward, an area of high pressure will bring fair and dry weather for this afternoon and much of the overnight hours tonight. Another weak area of low pressure and associated warm front will bring periods of light to moderate rain Sunday as it passes just south of Pennsylvania.
Moderate-to-heavy banded snowfall appears likely to develop along the cold front which will be draped from west to east across the region. A Winter Wx Advisory may eventually become necessary, especially along the Pine Ridge.
Trough currently crossing the northern Rockies will be the focus for this system. Some individual models are even higher than this in the highest parts of their respective bands, but with uncertainty in where that will land, the current upward bump is a good starting point. This especially true on the southern edge, as punch of drier air and also lingering warmer air across northwest Iowa will both serve to limit snowfall in that area.
222 AM MST Sat Feb 27 2021 Today, a cold front will continue moving across the Tri-State area in the first of a series of troughs and cold fronts. The cold front is currently expected to move through the area before mid- afternoon. Will start the period under upper ridging with a weak cut off low passing to the south which will not impact the area. For the end of the week, still significant model differences on the next upper low coming out of the southwest. High pressure builds into the area Saturday night.
923 AM EST Sat Feb 27 2021 Today warms back up as offshore high pressure pushes a warm front to our north.
850 AM CST Sat Feb 27 2021 (Issued 850 AM CST Sat Feb 27 2021) Increasing low level mixing and warming temperatures along with plenty of sunshine should allow temperatures to warm nicely through mid-afternoon, climbing into the low to mid 40s many locations. Kavinsky (Issued 353 AM CST Sat Feb 27 2021) Today through Sunday night: Mostly sunny skies and above normal temperatures will prevail today as high pressure passes by to the south. Attention then turns to low pressure approaching from the southwest tonight. The low will deepen Sunday as it tracks from sw Wisconsin into Ontario. The low will either clip the nw forecast area or move by just to the northwest. Could see a little freezing rain or snow mix in briefly for areas mainly north of Madison and Milwaukee as the precip begins later tonight.
After a lull overnight, shower chances increase across NE OK along a surging cold front. At the same time, sfc warm front lies across central TX, with unseasonably moist airmass characterized by dew points near 70 in parts of far southeast TX. Cold front will push south later tonight and Sunday morning, with a better signal in latest model runs for additional convection developing along the front tonight.
325 AM CST Sat Feb 27 2021 Adiabatic warming from downslope southwesterly winds will aid in another warmer than normal day today. Clouds will build in tonight across the area ahead of a cold front. The cold front will enter the area tonight after midnight and will be through the area by daylight tomorrow. The cold front as mentioned above will be exiting the area by daybreak Sunday, with cooler northeast breezes but still a dry lower atmosphere dominating the day.
357 AM CST Sat Feb 27 2021 Forecast highlights in the short term period will be cloudy conditions and cooler temperatures today compared to the last several days. Currently, broad upper level trough across central Canada extending into the Northern Plains, with an embedded mid level S/WV impulse tracking east across southern Saskatchewan. This feature is pushing a cold front south across the Northern Plains early this morning, and is also triggering areas of light snow across northern ND and the southern prairie provinces of Canada. Another embedded wave and cold frontal passage is expected later in the day Sunday, and will bring a shot of some light snow to northern and eastern areas of the region, and breezy and dry conditions to the west and south.
615 AM CST Sat Feb 27 2021 (Today and tonight) A warm front is moving slowly north across the area, bringing slightly warmer temperatures, and more importantly, increased low level moisture. The low clouds and fog will continue to move slowly northward this morning, likely affecting much of the Concho Valley, and potentially areas as far north as the I-20 corridor.
Vertz Surface cold front remains north of our cwa and as of 130 am is located roughly from Great Falls to Jordan and Glendive. Remaining lower elevations will see snow showers become focused along backdooring cold front, aided by steep (~8 C/km) mid level lapse rates. JKL In general, high pressure is expected to dominate the weather for the upcoming week, with only minor waves moving through the region helping to flatten ridging at times.
(Today and tonight) A warm front is moving slowly north across the area, bringing slightly warmer temperatures, and more importantly, increased low level moisture. The low clouds and fog will continue to move slowly northward this morning, likely affecting much of the Concho Valley, and potentially areas as far north as the I-20 corridor.
Temperatures will be on average 10 degrees cooler today with a few more degrees of cooling expected on Sunday. A cold front is currently pushing through southern Nevada and will provide around 10 degrees of cooling in most locations today in comparison to yesterday. The dynamics with the main upper level trough will primarily be located in Utah, but it will extend into Lincoln County and will provide at least the opportunity for an isolated shower this afternoon and evening. Northerly winds will also develop down the Colorado River Valley tonight behind the trough axis and last into Sunday afternoon with wind gusts generally of 40 to 45 mph and waves on Lake Mead and Mohave of 2 to 3 feet.
614 AM CST Sat Feb 27 2021 For the 27/12Z TAF update, MVFR/IFR cigs permeate our airspace, as a warm front slowly proceeds north, clearing KTXK by 28/05Z with southerly winds.
High pressure in the Atlantic will give us southeasterly winds until the seabreeze kicks in during the afternoon hours. Only break from the heat will be along the immediate coast with afternoon seabreezes bringing cooler shelf water air into those locations. High pressure remains stretched over the region from the W Atlantic with light to moderate SE-SW winds and seas 2-3 ft or less through the weekend and into Mon.