Aikyam-Lab/Synoptic-Bench huggingface dataset:
104 PM CST Tue Feb 2 2021 Issued at 100 PM CST Tue February 2 2021 High pressure aloft and at the surface will dominate the weather picture today through early Wednesday. The ridge will gradually move east Wednesday, setting up southwesterly flow and warm air advection into the west in advance of the next weather system developing in the Central and Southern Plains.
1048 AM CST Tue Feb 2 2021 Relatively mild weather for early February will continue the next couple of days as the upper ridge slides eastward from the Rockies across the Plains and Upper Midwest.
Cool, high pressure will advect into the region, bringing dry weather over the next couple days.
Dewpoints will be on the rise but still only in the 30s to low 40s across the region tonight and in combination with clear skies will allow for temps to still fall into the low to mid 40s. Wednesday will be the start of a short lived warming trend as upper level ridge builds to our west. Overnight Wednesday should bring an increase of cloud cover in the low to mid levels as the boundary layer moistens.
106 PM EST Tue Feb 2 2021 Snow chances will continue for part of the day with slow moving low pressure.
350 PM EST Tue Feb 2 2021 High pressure will slowly build into the region through the middle of the week.
CDG Chattanooga Airport, TN 25 47 29 53 40 / 0 0 0 10 70 Knoxville McGhee Tyson Airport, TN 24 40 24 49 38 / 0 0 0 10 80 Oak Ridge, TN 24 42 25 48 36 / 0 0 0 10 80 Tri Cities Airport, TN 20 39 19 48 35 / 0 0 0 0 70 TN.
/NEW/ /Through Wednesday Night/ North and Central Texas will remain under the influence of upper level ridging through most of the short term period. Expect high temperatures tomorrow to be several degrees warmer than today, ranging from the mid 60s across Northeast Texas to mid 70s across the Big Country.
208 PM MST Tue Feb 2 2021 Significant pattern change taking shape as a massive eastern PAC ridge will dislodge arctic air over northern Canada, directing it due south into the region by this weekend, per two cold fronts/systems. Thermal ridge now over the region with near record temps in the western 2/3. The first cold front will arrive Wed, supporting increasing chances for rain to snow as temps cool along with breezy NW winds. Temps will begin to fall late morning and early afternoon in the NW half as cooler air begins to filter in.
/issued 326 PM CST Tue Feb 2 2021/ Pleasant weather across the region today with temperatures generally ranging from about the low 50s to low 60s. High pressure remains in control overnight, leading to a good radiational cooling scenario with light to calm winds and skies remaining mostly clear.
There was a large subsidence inversion seen on the 12Z KEY RAOB around 850 mb which shows the stable airmass that moved in yesterday with the cold frontal passage. The tight pressure gradient that has dominated the post-cold frontal passage yesterday will begin to relax this evening into tomorrow morning as the low pressure system off the coast of the northeast is pushed farther northward and deteriorates. High pressure will move from the Lower Mississippi Valley near the Louisiana Coast early on Wednesday and cross Florida overnight on Wednesday. As the area of high pressure moves off the Florida Coast and heads for Bermuda, our winds will continue to veer easterly then southeasterly.
The stronger wind gusts are expected mainly over the higher terrain of the sierra as well as below the mountain passes of the Kern county and desert. Strong SW flow aloft has set up over central CA in between a trough offshore and a ridge towards the interior west. Models show the strong flow aloft will shift south tonight moving over the south valley Wednesday afternoon as a trough off the PacNW moves inland through NCal and into the Great Basin area Wednesday afternoon. Concern the strong wind aloft could mix down and topple trees that are covered with snow over parts of the high sierra.
610 PM EST Tue Feb 2 2021 High pressure will slowly build into the region through the middle of the week.
/issued Issued by National Weather Service Lake Charles LA/ SHORT TERM (Tonight through Wednesday Night): Another pleasant weather day across deep south TX, with plenty of sun and mild/warm temperatures generally in the lower/mid 70s. Only a bit of high cirrus is noted on visible satellite imagery within NW flow aloft around a deep layer ridge SE of the Baja. At the SFC, SE flow continues to become better established as high pressure shifts into WRN Gulf.
326 PM CST Tue Feb 2 2021 Pleasant weather across the region today with temperatures generally ranging from about the low 50s to low 60s. High pressure remains in control overnight, leading to a good radiational cooling scenario with light to calm winds and skies remaining mostly clear.
SHORT TERM (Tonight through Wednesday Night): Another pleasant weather day across deep south TX, with plenty of sun and mild/warm temperatures generally in the lower/mid 70s. Only a bit of high cirrus is noted on visible satellite imagery within NW flow aloft around a deep layer ridge SE of the Baja. At the SFC, SE flow continues to become better established as high pressure shifts into WRN Gulf.
However, a strong cold front is forecast to move south across the region tonight into Wednesday morning.
539 PM CST Tue Feb 2 2021 Northwest flow continues on the east side of a large upper ridge.
843 PM EST Tue Feb 2 2021 High pressure continues to build into the region, though the pressure gradient has already relaxed some, with winds finally diminishing. Temperatures tonight will bottom out in the lower 30s to 40s closer to the coast, and the Freeze Warning remains in effect for Sumter, coastal Levy, and coastal Citrus counties. High pressure continues to build over the waters, with gusty northwest winds continuing for the first part of tonight.
530 PM CST Tue Feb 2 2021 High pressure over the region and an approaching upper level short wave ridge will allow the Ozarks to see a quick warm up tonight into Wednesday. Overnight lows will fall into the upper 20s to around 30 degrees thanks to the clear skies, but as the high shifts east Wednesday and a low deepens across the plains Wednesday, the surface pressure gradient will tighten and southerly winds will increase through the day.
Much warmer behind the trough. Significant pattern change taking shape as a massive eastern PAC ridge will dislodge arctic air over northern Canada, directing it due south into the region by this weekend, per two cold fronts/systems. Thermal ridge now over the region with near record temps in the western 2/3. The first cold front will arrive Wed, supporting increasing chances for rain to snow as temps cool along with breezy NW winds. Temps will begin to fall late morning and early afternoon in the NW half as cooler air begins to filter in.
FREEZING TEMPERATURES TONIGHT AND WEDNESDAY NIGHT. Cold and breezy again tonight with widespread freezing temperatures.
615 PM CST Tue Feb 2 2021 (This evening through Wednesday) Upper ridging will take temperatures well above normals today and tomorrow with some areas south of the Red River approaching 80 degrees. By Wednesday afternoon, the ridge diminishes with the coming pattern change to long-wave troughing. In advance of this, a lee pressure trough develops in Colorado and northeastern New Mexico resulting in increasing south winds over western and central Oklahoma by midday.
959 PM EST Tue Feb 2 2021 Cool, high pressure will advect into the region, bringing dry weather over the next couple days.
High resolution models all pinpoint another night of fog, some of which could become dense, around and west of the Illinois River as the center of the high slides southeast over a moist boundary layer. A positively tilted Pacific trough will move onshore Wednesday, progressing east across the central CONUS by Wednesday night while becoming more neutral to negatively tilted as it does so.
Issued at 245 CST Tue Feb 2 2021 High pressure will slowly move across the area on Wednesday with slightly warmer temperatures in the mid to upper 40s.
412 PM MST Tue Feb 2 2021 Significant pattern change taking shape as a massive eastern PAC ridge will dislodge arctic air over northern Canada, directing it due south into the region by this weekend, per two cold fronts/systems. Thermal ridge now over the region with near record temps in the western 2/3. The first cold front will arrive Wed, supporting increasing chances for rain to snow as temps cool along with breezy NW winds. Temps will begin to fall late morning and early afternoon in the NW half as cooler air begins to filter in.
Expecting the low clouds to expand back to the east tonight, with more fog.
A cold front is slowly working its way toward our region, and is expected to pass across the state from tonight through Wednesday. Showers in the lower valleys of northern Nevada are likely to start as rain due to âwarmerâ air at the surface. As cooler air pools in with the frontal passage, snow levels come down to valley floors during the overnight hours tonight. On top of the rain/snow mix, this cold fronts bring breezier winds with it across the CWA through Wednesday evening.
High pressure aloft and at the surface will dominate the weather picture today through early Wednesday. The ridge will gradually move east Wednesday, setting up southwesterly flow and warm air advection into the west in advance of the next weather system developing in the Central and Southern Plains.
929 PM EST Tue Feb 2 2021 High pressure will slowly build into the region through the middle of the week.
A deep upper trough pushes off the east coast through the near term as an upstream ridge builds over the central and eastern CONUS. Meanwhile at the surface, high pressure builds into the area and the pressure gradient weakens, allowing local winds to relax and become more variable. A deep upper trough pushes off the east coast through the near term as an upstream ridge builds over the central and eastern CONUS. Meanwhile at the surface, high pressure builds into the area and the pressure gradient weakens, allowing local winds to relax and become more variable.
Loose MSLP gradient will support light sw surface in most areas overnight while deep mixing and lee trof will favor wsw winds sustained near 15kts Wed PM starting around 20Z. /issued 217 PM CST Tue Feb 2 2021/ Upper ridge centered over Mexico extends northward along the Rockies putting the region on its east side.
647 PM EST Tue Feb 2 2021 Cool, high pressure will advect into the region, bringing dry weather over the next couple days.
526 PM CST Tue Feb 2 2021 (This evening through Wednesday) A warm, breezy afternoon is on tap for much of West Central Texas as a lee trough strengthens just west of the Panhandle. Winds should diminish overnight, but some high clouds should keep low temperatures generally in the low to mid 40s. Tomorrow, skies should clear out again with more breezy conditions as lee troughing continues across the Central High Plains. High temperatures will be even warmer tomorrow afternoon as they will approach 80 degrees in some locations.
Skies clearing as flow aloft shifts more W/NW, but expect clouds to build back in overnight as the center of a low pressure system moves onshore.
Rest of this afternoon & tonight: Clouds have lingered into the early afternoon across the ArkLaMiss Delta, which is keeping highs cooler across portions of the Delta. PWs around a quarter inch)/limited clouds, the region will radiate below freezing areawide, into the upper 20s in the east to low 30s to the west. With dry conditions & high pressure remaining the main influence, a quiet afternoon will be the norm. As 850mb ridge axis builds east & WAA increase into the afternoon, highs will warm closer to normals in the mid 50s to the north to near 60 degrees in the south.
Snow impacts will be mostly concentrated over high terrain and mountain passes through sunset, with a proliferation of low elevation snow as the surface cold front marches eastward thereafter.
We are starting to see some convective activity develop between Redding and Red Bluff, which could eventually feed into northern and western Lassen County and join forces with the approaching trough to produce the currently projected snow amounts there. As the trough and cold front pushes across northern NV on Wednesday, Pyramid Lake is on the borderline for possible lake wind advisory conditions. Farther east, high resolution guidance is attempting to produce a narrow snow band across Pershing County with forcing along the cold front. Otherwise, a blustery and chilly day is on tap across the region on Wednesday, followed by decreasing winds late in the day through Wednesday night (except for a short period of gusty NE-E ridge winds over the Sierra).
449 PM MST Tue Feb 2 2021 Upper trough will dig southward along the West Coast overnight, then swing eastward toward the Rockies on Wednesday. As flow aloft increases overnight, higher peaks along the Continental Divide may see some snow showers develop toward morning, while winds over all the higher terrain strengthen in response to approaching upper level jet. Farther east, warm downslope winds will boost temps to well above average levels, with some low 70s likely along the lower Ark Valley.
334 PM MST Tue Feb 2 2021 Upper trough will dig southward along the West Coast overnight, then swing eastward toward the Rockies on Wednesday. As flow aloft increases overnight, higher peaks along the Continental Divide may see some snow showers develop toward morning, while winds over all the higher terrain strengthen in response to approaching upper level jet. Farther east, warm downslope winds will boost temps to well above average levels, with some low 70s likely along the lower Ark Valley.
300 PM MST Tue Feb 2 2021 A Pacific cold front will move through the region tonight producing areas of rain and snow.
Wednesday will be warmer for sure and with easterly flow early becoming southerly and getting a bit gusty.
A cool and dry airmass is expected over the southeastern CONUS through the short term period as northwesterly flow continues to filter into the area on the backside of the 500 mb trough moving eastward towards the Atlantic coast. High pressure and subsidence will also lead to low relative humidity values during the afternoon. High temperatures this afternoon are expected to be mainly between 10-15 degrees below climatological normals, with highs in the 40s and low 50s (and 30s in the higher elevations). With enhanced winds remaining across north and central Georgia, cold wind chills are expected once again tonight, in the single digits in the higher elevations of far northeast Georgia and in the teens elsewhere in the forecast area.
450 PM MST Tue Feb 2 2021 Updated Aviation Discussion A Pacific cold front will move through the region tonight producing areas of rain and snow.
Northwest flow will continue tonight into Wednesday as we remain sandwiched between an upper ridge to our west and the deep upper trough just off the east coast of the US.
This may keep temperatures there a degree or two warmer overnight, relatively speaking.
High pressure will build overhead from the west through the day, and will be overhead during the night Tonight. With subsidence under the high, skies will be clear this period. With the high overhead Tonight, low level mixing will be limited allowing temperatures to drop to below freezing across much of the region. Given expected position of ridge, the flow along the coast should trend to onshore right before dawn, allowing coastal counties to not quite make it to freezing.
1034 PM CST Tue Feb 2 2021 (This evening through Wednesday) A warm, breezy afternoon is on tap for much of West Central Texas as a lee trough strengthens just west of the Panhandle. Winds should diminish overnight, but some high clouds should keep low temperatures generally in the low to mid 40s. Tomorrow, skies should clear out again with more breezy conditions as lee troughing continues across the Central High Plains. High temperatures will be even warmer tomorrow afternoon as they will approach 80 degrees in some locations.
236 AM CST Wed Feb 3 2021 Upper ridge axis overhead, southerly surface winds, and little cloud should result in a much warmer day today with temps locations potentially reaching 60.
Sfc and upper ridging over the Mississippi Valley will slowly build east and allow clearing to win out through the day. Otherwise it is a transitional day as the ridge axis drifts across by midnight tonight, after which we start to see modest return flow set up. Temps this afternoon will be just a few degrees warmer than Tuesday and still below climo, but lighter winds will make it feel at least 10 degrees warmer than Tue.
Warmer temperatures Today 2. Cold front-Light Rain and Windy Tomorrow 3.
Tonight will be calm and chilly as lows dip down into the lower to middle 30s under mostly clear skies.
324 AM EST Wed Feb 3 2021 Currently at the surface, a ridge of high pressure over the southern Mississippi River valley is spreading south into the Gulf of Mexico, with moderate northwest winds continuing to fuel weak cold air advection across the forecast area. Temperatures are continuing to drop, with freezing temperatures expected over interior parts of the Nature Coast counties around day break this morning.
1110 PM CST Tue Feb 2 2021 High pressure to the west is slowly moving east.
1056 PM MST Tue Feb 2 2021 Upper trough will dig southward along the West Coast overnight, then swing eastward toward the Rockies on Wednesday. As flow aloft increases overnight, higher peaks along the Continental Divide may see some snow showers develop toward morning, while winds over all the higher terrain strengthen in response to approaching upper level jet. Farther east, warm downslope winds will boost temps to well above average levels, with some low 70s likely along the lower Ark Valley.
915 PM PST Tue Feb 2 2021 An upper level trough moving across the Great Basin will generate gusty west winds in the mountains and deserts Wednesday.
1057 PM CST Tue Feb 2 2021 High pressure over the region and an approaching upper level short wave ridge will allow the Ozarks to see a quick warm up tonight into Wednesday. Overnight lows will fall into the upper 20s to around 30 degrees thanks to the clear skies, but as the high shifts east Wednesday and a low deepens across the plains Wednesday, the surface pressure gradient will tighten and southerly winds will increase through the day.
This persistence, along with low/mid-level clouds moving in from the northwest has moderated temperatures, leading to a slightly warmer trend than the forecast. CD Chattanooga Airport, TN 46 28 52 39 48 / 0 0 0 80 20 Knoxville McGhee Tyson Airport, TN 40 25 48 36 44 / 0 0 0 90 30 Oak Ridge, TN 43 25 47 35 44 / 10 0 0 80 20 Tri Cities Airport, TN 38 19 48 35 42 / 0 0 0 90 30.
Cold front and showers finally moving across southern Idaho after stalling in Oregon nearly two days. Snow showers will redevelop over the higher terrain on Wednesday afternoon and become scattered.
345 AM EST Wed Feb 3 2021 A strong upper level low over the Mid Atlantic coast will drift slowly northeast over New England today.
The local pressure gradient is gradually loosening as this low pulls further away and a large ridge builds southwards down the Mississippi Valley into the Gulf of Mexico. The cold air stratocumulus has cleared much of the island chain, lingering only in the Lower Keys. Short Term Update - Tonight will be cooler than the last due to continuing cool northwest to north breezes. Temps will struggle to see mid 50s in the Lower Keys due to the longer maritime streamlines.
234 AM CST Wed Feb 3 2021 A large expansive ridge will continue to move east across the central CONUS today. A trough will move onshore in the Pacific Northwest this morning as well. This trough will push into the Intermountain West this afternoon and as this occurs, will induce surface lee cyclogenesis/troughing from eastern Colorado into eastern New Mexico. However, the surface lee troughing will still likely make up the difference and produce breezy downsloping winds.
This persistence, along with low/mid-level clouds moving in from the northwest has moderated temperatures, leading to a slightly warmer trend than the forecast. BW Chattanooga Airport, TN 29 46 28 52 39 / 0 0 0 0 80 Knoxville McGhee Tyson Airport, TN 26 40 25 48 36 / 0 0 0 0 90 Oak Ridge, TN 27 43 25 47 35 / 10 10 0 0 80 Tri Cities Airport, TN 22 38 19 48 35 / 10 0 0 0 90.
1219 AM EST Wed Feb 3 2021 High pressure provides dry and seasonably cold temperatures through Wednesday.
/issued 843 PM EST Tue Feb 2 2021/ High pressure continues to build into the region, though the pressure gradient has already relaxed some, with winds finally diminishing. Temperatures tonight will bottom out in the lower 30s to 40s closer to the coast, and the Freeze Warning remains in effect for Sumter, coastal Levy, and coastal Citrus counties. High pressure continues to build over the waters, with gusty northwest winds continuing for the first part of tonight.
Upper trough working its way onshore at this time. Most of the precipitation will remain over the Cascades, but some will ultimately rain and snow showers will spread over the area during the morning hours as the trough moves across central then eastern Oregon and weakens.
Look for sustained winds near 8-14kts with gusts upwards of 20kts with the highest winds expected across our NE TX terminal locations.
1105 PM CST Tue Feb 2 2021 (This evening through Wednesday) Upper ridging will take temperatures well above normals today and tomorrow with some areas south of the Red River approaching 80 degrees. By Wednesday afternoon, the ridge diminishes with the coming pattern change to long-wave troughing. In advance of this, a lee pressure trough develops in Colorado and northeastern New Mexico resulting in increasing south winds over western and central Oklahoma by midday.
310 AM EST Wed Feb 3 2021 Snow in the ridges should end this morning as high pressure builds in, otherwise dry weather is expected today.
High pressure is currently centered over northern Illinois. As the high moves slowly southeast today, dry weather will continue. Temperatures will be a little warmer today with highs from the mid 40s to lower 50s.
Winds will generally be from the south through this evening then shift to the north behind a cold front closer to sunrise tomorrow. A slight chance of light snow may be found just behind this cold front but accumulations will be light if nonexistent.
Strong cold front is expected Thursday morning, with gusty winds and minor snow accumulations along and north of the Missouri River. Low level jet around 40 knots and increasing stratus will aid in keeping temperatures mild through the evening hours ahead of a cold front approaching from the northwest.
/Issued 420 AM EST Wed Feb 3 2021/ At the upper levels, the CWA is situated between the exiting trough over the Eastern Seaboard and New England, and an upper- level ridge building in from the west. At the surface, high pressure and subsidence will shift over the CWA through the day. High temperatures will range from the lower 40s to mid-50s. An associated cold front and line of rain showers will push across the Deep South on Thursday, though the CWA should stay dry with just mid- and upper-level clouds increasing ahead of the cold front and associated showers.
540 AM CST Wed Feb 3 2021 (Today and tonight) It will be warm today with highs in the mid 70s to 80 degrees, as a lee trough to the west continues to bring southerly winds to the region. The stronger winds and increasing moisture will keep lows on the warmer side, in the low to mid 50s.