Aikyam-Lab/Synoptic-Bench huggingface dataset:
1125 PM CST Tue Nov 28 2017 Weak cold front slowly is slowly pushing eastward across Oklahoma and Texas this evening. Otherwise, the weak cold front main bring a few showers to northern areas, potentially impacting KTXK, KELD, and KMLU after 15z. Some observations just south of our CWA showing some precipitation making it to the ground near DRI and for that reason, have left slight chance pops going overnight for portions of the Lower Toledo Bend and Sam Rayburn Country of Deep East Texas into West Central La. Meanwhile, looking upstream, a cold front continued to make slow but steady progress across North Texas into Central and Eastern Oklahoma.
Low temps will be in the lower-mid 60s. Winds will shift northwesterly as a cold front moves through the area.
It will take some time for the lower atmosphere to moisten up enough for rain and snow to reach the ground. It is rather mild out due to a southerly flow pushing warmer air into the forecast area.
Lows tonight 5 to 15 and highs Thursday in the low to mid 30s with some upper 30s west and south central. High pressure will build over all terminals through the forecast period bringing high ceilings and mainly light westerly winds, becoming more south/southeasterly during the afternoon Thursday.
After midnight, the next cold front will be approaching from the north. /issued 250 PM CST Wed Feb 28 2018/ SHORT TERM (Tonight through Thursday night): Strong low level jet across the lower Texas coast this afternoon continues to mix down and winds continue to meet wind advisory criteria in Brownsville and Harlingen so will extend the NPW through 7 pm for Cameron. Breezy conditions will prevail tonight before a weak cold front moves into the CWA late tonight and winds become light and variable. Drier and slightly cooler air will filter into the area Thursday but temperatures will still be above normal Thurs afternoon.
In the low levels of the atmosphere, an Atlantic ridge of high pressure will extend across South Florida overnight. In the mid levels of the atmosphere, an area of high pressure will be centered over the southeastern Gulf of Mexico tonight. In the upper levels of the atmosphere, a ridge of high pressure will be located over the Florida Straits overnight.
Associated cold front is expected to move through the central Gulf coast region on Thursday, and most of the forecast area during the late morning through early evening hours.
Meanwhile an upper lever trough will transition eastward across the region. The sky will clear from the west Thursday in the wake of the exiting upper level trough. Temperatures will be considerably cooler with highs in the lower 50s.
310 PM MST Wed Feb 28 2018 Current surface analysis shows weak high pressure over central SD, with mostly sunny skies. Upper level analysis shows near zonal flow across the region, with low pressure moving east across NM. Quiet weather will continue through the end of the week as a weak ridge over the Pacific NW moves east into the plains.
This afternoon, the upper air pattern features a sharp trough over the Desert Southwest and relatively zonal flow over the eastern U. Broad WSW flow continues a steady stream of mid/upper level moisture into the Lower Ohio Valley. A surface analysis reveals low pressure centered near the OK/KS border, with a warm front extending southeast through AR and southwest TN.
604 PM EST Wed Feb 28 2018 Approaching low pressure will bring rain tonight and Thursday.
Surface analysis shows a cold front over the Texas Panhandle into Oklahoma. The true cold front should reach the area later in the morning.
417 PM MST Wed Feb 28 2018 Current surface analysis shows weak high pressure over central SD, with mostly sunny skies. Upper level analysis shows near zonal flow across the region, with low pressure moving east across NM. Quiet weather will continue through the end of the week as a weak ridge over the Pacific NW moves east into the plains.
A cold front will slip down toward the forecast area tonight, with pre-frontal trough progged to enter the forecast area between 3 am and 6 am, that will allow for scattered showers and a few storms to form, mainly over the northern third of the forecast area, with activity pushing south as the true cold front arrives during Thursday morning. A cold front across the Southern Plains will move across the forecast area on Thursday morning. Drier air will move in behind the front during Thursday allowing for cooler conditions to prevail through the remainder of the week into the first part of the weekend.
High pressure across the Florida Peninsula will shift south and east through the next couple of days as a cold front drops south into the Gulf of Mexico Thursday night.
520 PM CST Wed Feb 28 2018 Quiet weather will persist over the next day as high pressure remains firmly in place. This will result in overnight lows to drop into the low to mid teens across the forecast area.
Precipitation will begin to shift east later tonight as the upper trof and cold front push into the region.
330 PM MST Wed Feb 28 2018 A low over the Gulf of Alaska will drop southward toward the Pac NW on Thursday as transitory ridging builds into Utah and Colorado. A weak disturbance will initiate isolated showers across NE Utah and NW Colorado Thursday afternoon, likely only across the higher terrain. Southwesterly winds will increase late Thursday as a large amplitude trough develops across the western US.
556 PM CST Wed Feb 28 2018 The main concern in the short term will be the redevelopment of fog overnight as high pressure settles in at the surface over the snow pack.
943 PM EST Wed Feb 28 2018 A warm front will slowly shift north through our area tonight. A cold front will move through late Thursday afternoon and evening providing a chance of showers and a few thunderstorms, with warm and breezy conditions expected to develop.
A cold front across the Southern Plains will move across the forecast area on Thursday morning. Drier air will move in behind the front during Thursday allowing for cooler conditions to prevail through the remainder of the week into the first part of the weekend.
556 PM CST Wed Feb 28 2018 Low pressure is expected to track across south central IL later tonight bringing showers and isolated thunderstorms to the area. 75" will fall north of the low track later tonight into Thursday morning with the deepening surface wave forecast to shift into western Ohio by Noon Thursday. With the clouds and precipitation around tonight, overnight lows aren't expected to drop off too far with most of our area seeing early morning temperatures range from the upper 30s across the north to only the low 50s over southeast Illinois.
/Issued 333 PM CST Wed Feb 28 2018/ Latest surface observations show the weak cold front currently across the northeastern third of the combined Panhandles. As this cold front progresses south, coupled with an approaching short wave trof, may allow for an isolated convective cloud or two to develop along the boundary with virga activity possible.
557 PM CST Wed Feb 28 2018 On the large-scale this afternoon, water vapor imagery still depicting a large upper low across the Desert Southwest, with a well-established plume of east-Pacific moisture in place further downstream across the Southern Plains and mid-Mississippi Valley. A tight pressure gradient on the backside of this front will set the stage for breezy north winds late tonight and for much of the day on Thursday before high pressure arrives late in the day. Thursday will be a tad cooler with highs likely topping out in the lower 50s for most locations. Quiet weather to then persist through the conclusion of the workweek and into the upcoming weekend as low amplitude ridging builds overhead.
902 PM EST Wed Feb 28 2018 Approaching low pressure will bring rain tonight and Thursday.
Earlier forecasts had thought the inverted trough would be a focal point for moisture convergence and while it still may, the boundary layer is not as saturated. Temperatures across the area as of 1 PM ranged from the upper 30s to the lower 50s. Will also have to watch closely for the possibility of some light glaze from the drizzle as temperatures hover near or below freezing. As the low pulls farther east and high pressure builds in Thursday afternoon, look for decreasing clouds with highs topping off in the 30s to lower 40s. High pressure settles in Thursday night for mostly clear skies and lows dipping into the teens/lower 20s. A beautiful weekend is shaping up for the weekend along with warming temperatures as a large ridge of high pressure builds in.
410 PM MST Wed Feb 28 2018 Aviation Section Updated An upper level ridge of high pressure will move over the region tonight, resulting in quiet weather.
414 PM MST Wed Feb 28 2018 A weak cold front pushed through the high plains this morning, with surface winds shifting to northerly and slightly cooler temperatures.
323 PM MST Wed Feb 28 2018 Upper trough moving from AZ into NM this afternoon, with weak upward vertical motion and modest convective instability forcing scattered rain/snow showers across mainly the mountains. Mainly a dusting of snow at most locations, perhaps an inch or 2 over the highest peaks. On Thu, flat upper ridge moves eastward across the state as surface winds become sly at most locations by afternoon.
/issued 339 PM CST Wed Feb 28 2018/ A cold front will continue to advance across Oklahoma and north Texas through tonight, overtaking the dry line boundary out west, with an upper trough approaching the southern plains from out of the southwest. Otherwise, the northerly winds will send in slightly cooler air for tonight, with northwest Oklahoma falling into the 30s, to the 40s across the rest of our area. More seasonably normal temperatures will be in store for tomorrow, as high pressure & weak upper ridging settles in.
957 PM CST Wed Feb 28 2018 Surface analysis shows a quasi-stationary from extending WSW from the Great Lakes through the Mid-Mississippi River Valley into the TX/OK panhandle area, where an area of low pressure is developing. Otherwise, back in western MN where more clearing will take place but with still a lower level surge of warmer air and moisture, patchy to areas of fog will develop over the decaying snowpack.
702 PM EST Wed Feb 28 2018 A warm front will slowly shift north through our area tonight. A cold front will move through late Thursday afternoon and evening providing a chance of showers and a few thunderstorms, with warm and breezy conditions expected to develop.
A cold front will move through DRT around 04Z and through AUS and SAT roughly around 08Z. Upper air analysis this morning showed a trough over the southwest with southwesterly flow over Texas. At the surface, high pressure in the Gulf was producing southerly to southeasterly winds across our CWA. There was a complex system of surface boundaries across the Southern Plains with a stationary boundary stretched east to west across Oklahoma, a north to south dryline over West Texas, and a cold front from southern New Mexico across northwestern Mexico. This system will become better organized and move through our CWA as a cold front tonight. Northerly winds behind the front will bring cooler, drier air for Thursday and Thursday night.
Cold front extended across northwest and western portions of Oklahoma this evening, and will move through the far NE TAF sites of KBVO/KTUL/KRVS before midnight with a wind shift to the north and possible MVFR ceilings. A second batch of showers and thunderstorms should increase across the area mid to late evening, shifting eastward after midnight as the front pushes through, before the upper level trough fully clears the area.
Chattanooga Airport, TN 53 65 39 57 / 90 100 10 0 Knoxville McGhee Tyson Airport, TN 50 63 38 52 / 100 100 20 10 Oak Ridge, TN 51 62 39 52 / 100 100 20 10 Tri Cities Airport, TN 50 61 36 46 / 100 100 40 10 NC.
A cold front will push across the TAF sites before midnight local time swinging the wind around to the north. Culprit for delay of winds is the closed upper low west of the Arizona-New Mexico border with upper flow remaining backed enough for high cloud bands stretched overhead and enough instability for light rain showers within the bands. Once the opening upper low crosses into the western Texas Panhandle close to midnight tonight we will see a modest cold front push south through our area mainly after midnight along with drier air.
406 PM MST Wed Feb 28 2018 GOES-16 water vapor shows the low center progressing eastward across Arizona with the dry conveyor belt continuing to dig south. There is modest lift over the higher terrain that is helping to bring some light snow to the higher elevations. Echoes on radar show some returns over the higher elevations of Larimer county with some spilling over on the western plains. Current dew point depression readings show up to 20 degrees so suspect most of the returns over the lower elevations are mostly virga with little to none making it to the ground. The upper trough will continue to progress eastward with increasing subsidence behind it as ridging increases.
The subsequent trailing cold front will act as the focal point for showers Thursday afternoon.
Patchy fog will be possible ahead of the approaching cold front as well, but ceilings are more likely to be the limiting factor for flight condition. The cold front will gradually work through the area from northwest to southeast through Thursday - AEX, BPT, and LCH will have the best chance at showers on a weakening line of precipitation. A cold front across the Southern Plains will move across the forecast area on Thursday morning. Drier air will move in behind the front during Thursday allowing for cooler conditions to prevail through the remainder of the week into the first part of the weekend.
652 PM EST Wed Feb 28 2018 Areas of low pressure will ripple east along a warm front moving north through the Tennessee Valley and Carolinas tonight.
Low pressure is expected to track across south central IL later tonight bringing showers and isolated thunderstorms to the area. 75" will fall north of the low track later tonight into Thursday morning with the deepening surface wave forecast to shift into western Ohio by Noon Thursday. With the clouds and precipitation around tonight, overnight lows aren't expected to drop off too far with most of our area seeing early morning temperatures range from the upper 30s across the north to only the low 50s over southeast Illinois.
A cold front will push most of the precipitation off to the east late, with an increase in west or northwest winds.
547 PM CST Wed Feb 28 2018 Surface analysis shows a quasi-stationary from extending WSW from the Great Lakes through the Mid-Mississippi River Valley into the TX/OK panhandle area, where an area of low pressure is developing. Otherwise, back in western MN where more clearing will take place but with still a lower level surge of warmer air and moisture, patchy to areas of fog will develop over the decaying snowpack.
849 PM EST Wed Feb 28 2018 Warm front now draped across portions of southern Illinois, southwest Kentucky into middle Tennessee and north Georgia. There should be an increase in shower coverage overnight into Thursday morning as the warm front lifts northward while an area of low pressure currently near St Louis organizes and lifts east/northeast. This afternoon, the upper air pattern features a sharp trough over the Desert Southwest and relatively zonal flow over the eastern U. Broad WSW flow continues a steady stream of mid/upper level moisture into the Lower Ohio Valley. A surface analysis reveals low pressure centered near the OK/KS border, with a warm front extending southeast through AR and southwest TN.
608 PM CST Wed Feb 28 2018 A neutral/slightly negatively tilted trough will dig from Saskatchewan/Manitoba this afternoon southeastward to northern Wisconsin by Thursday evening. At the surface, low pressure will develop somewhere across the Mid Mississippi/Ohio River Valley, while an inverted trough extends northwestward into northern Wisconsin. Lows tonight range from the single digits above zero to the low to mid 20s across northwest Wisconsin. High pressure will build into the Northern Plains on Thursday. Cooler 850 hPa air will advect into the region as flow aloft becomes northwesterly. This will bring cooler temperatures on Thursday in comparison to today. Late-week a broad area of high pressure builds across the Upper Midwest into the Great Lakes.
Mid level ridge was maintaining a subsidence inversion over the area with moisture shallow/limited. Otherwise, some patchy stratocumulus and thin cirrus will affect the area and min temps will be above normal in the lower-mid 60s.
438 PM MST Wed Feb 28 2018 A low over the Gulf of Alaska will drop southward toward the Pac NW on Thursday as transitory ridging builds into Utah and Colorado. A weak disturbance will initiate isolated showers across NE Utah and NW Colorado Thursday afternoon, likely only across the higher terrain. Southwesterly winds will increase late Thursday as a large amplitude trough develops across the western US.
436 AM EDT Wed Jun 28 2017 High pressure over the region today will move off the coast tonight.
An 80 knot jet streak moving ahead of the trough axis will set up over Wyoming's southern border. Warmer than normal temperatures promise deep mixing which will transfer momentum from higher levels to the surface resulting in another hot and breezy day for the area. The potential for critical fire weather conditions will lessen Thursday after as cooler temperatures spread across the area.
5 inches near the Highway 82 corridor. As temperatures warm into the upper 80s and lower 90s, and combine with the influence of another upper trough lingering over the northern gulf, isolated to scattered showers and storms will occur this afternoon. The greatest coverage should be south of I-20, and closer to the Highway 84 corridor. Overnight lows will be rather mild in the lower 70s.
307 AM PDT Wed Jun 28 2017 68 lightning strikes occurred across northern Lake County this past evening as an upper level trough of low pressure moved overhead while just enough moisture and instability developed from afternoon heating. Temperatures today are expected to be a little cooler than 24 hours ago at most inland Oregon locations outside of the marine layer due to the increased onshore northwest flow caused by the upper level trough that moved through this past evening. Tonight through Thursday morning light northeast winds will develop above the valleys resulting in a cooler and drier night for valley locations.
Around the Wednesday/Thursday time frame an area of low pressure will move northeastward along the Gulf Coast.
107 AM EDT Wed Jun 28 2017 High pressure remains in control through the TAF period with VFR flying conditions.
552 AM CDT Wed Jun 28 2017 With the high pressure ridge over the eastern CONUS, the Midwest is moving into an unsettled warming trend, with showers and thunderstorms expected through the end of the week. Even though the temps cool a few degrees at the midlevels for the weekend as a quick wave rotates around the trough over the Great Lakes, the difference at the surface is negligible.
Issued by National Weather Service SAN ANGELO TX 409 AM CDT Wed Jun 28 2017 Upper level ridge centered over Baja will extend across the area the next several days.
322 AM MDT Wed Jun 28 2017 Another upper level trough will drop down from the northwest today with the support of a 90kt jet streak. As the trough moves through, enough instability and daytime heating will allow a few showers and storms to form favoring our northern areas.
351 AM MDT Wed Jun 28 2017 A dry air mass will be in place over the Borderland the next 3 days, which will allow afternoon temperatures to return to the century mark or slightly above in most of the lowlands.
Surface winds are northwesterly around 10 kts, and temps range from the lower 50s across northeastern WY to the lower 70s across south central SD. Cooler air will pour into the northern plains Thursday as the trough moves through, dropping highs about 10 degrees.
159 AM EDT Wed Jun 28 2017 High pressure builds over the mid- Atlantic region through today.
240 AM PDT Wed Jun 28 2017 Stronger onshore flow and weakening high pressure aloft will bring a cooling trend today and Thursday.
Isolated showers and thunderstorms associated with an upper trough will continue mainly in SW Idaho this morning. Drier air will arrive with the passage of a cold front, except the isolated showers and thunderstorms may continue in the West Central Mountains east of McCall this evening. The upper trough will pass by to our northeast tonight and will be followed by a dry N-NW flow aloft on Thursday.
630 AM EDT Wed Jun 28 2017 High pressure will move off the eastern seaboard later today setting up a warmer and more humid airflow beginning on Thursday.
Low pressure will track across the Northern Lakes Thursday dragging another front across the area.
Dew points will be in the low 70s, 0-6 km shear will be about 40-50 kts, with instability around 2500 J/kg. As we continue on into the night tonight, the low level jet will ramp up transitioning the line into elevated convection. Large hail and damaging winds will be the primary concerns, but can't rule out the tornado potential along the warm front. In addition, storms may be training as storm tracks seem to be parallel to the warm front.
Would not be surprised to see the showers and thunderstorms linger, especially in the northeast after midnight in association with a short wave trough passing near this area. Also, the low level jet should also add to the shear. On Thursday, a cold front will move into the Oklahoma Panhandle by early evening and this combined with increasing shear aloft may help to fire some showers and thunderstorms in the northeast CWA where the better low level moisture will be located.
329 AM EDT Wed Jun 28 2017 A trough of low pressure will move offshore this afternoon with a few showers possible across the interior and mid coast. A warm front will approach on Thursday and bring increasing chances of rain during the afternoon and and especially the nighttime hours.
145 AM EDT Wed Jun 28 2017 A cold front will move east of the area overnight as high pressure builds east from the Ohio Valley. The high passes south of the area Wednesday afternoon and night.
Forecast area will be under a weak cyclonic flow as an upper level low passes through western Canada overnight and Wednesday. Upper level flow will shift from west to northwest tonight as a ridge builds offshore. The upper level ridge will drift toward the coast Wednesday and Thursday.
233 AM EDT Wed Jun 28 2017 High pressure builds over the area today.
330 AM CDT Wed Jun 28 2017 Upper trof over the East Coast continues to depart to the e this morning, and weakness/disturbance over the nrn Gulf continues to generate convection along the TX/LA coast.
Last of the pesky little waves riding through the base of the large eastern US upper trough continues to pass this afternoon with minimal effect. POPs tomorrow night a little uncertain as the medium range models begin developing a weak upper low over the central gulf coast. Still looking at high pressure off the mid Atlantic Coast with a rapid return flow into the southeast states for Wednesday night into Thursday. An upper trough deepening over the Great Lakes and into the OH Valley over the weekend may help push a front into TN.
319 AM EDT Wed Jun 28 2017 High pressure build into the area tonight providing dry and cool conditions. The high will move off the east coast setting up a warmer and more humid airflow beginning on Thursday.
The weekend will see continued dry weather but warmer temperatures. Tonight through Thursday: The low that was partly responsible for yesterday's weather is still up in BC/Alberta. The northerly flow on the backside of this low will bring the chance of thunderstorms to form over the northern mountains of Washington and Idaho. By Thursday, the offshore ridge will amplify which should push any shower chances off to the east.
302 AM EDT Wed Jun 28 2017 High pressure should maintain dry weather today. Dry weather and mostly sunny skies are expected today as high pressure slides across the region.