Aikyam-Lab/Synoptic-Bench huggingface dataset:
The cold front continues to push through the southern part of the state. The cold front continues to push through the southern part of the state. A cold front will continue to make its way eastward through the state this afternoon into early tonight, providing a slight chance for light rain as the moisture has to make it through a dry boundary layer. Northwesterly winds and clouds will increase again during the day tomorrow ahead of a secondary, back door cold front. Expect warmer overnight temperatures in the mid 30s to low 40s for Thursday night with increased cloud cover.
346 PM PDT Wed Apr 28 2021 High pressure will result in warm and dry conditions through Thursday, with temperatures peaking in the mid 70s to lower 80s.
1030 PM EDT Wed Apr 28 2021 Currently - Atlantic high pressure extends westward across Florida and Georgia, resulting in moderate to fresh mainly easterly breezes across the Keys and surrounding waters. Despite the deep layered ridging, the subsidence inversion has nearly disappeared at Key West with drying not beginning until above 800 mb. A ridge across Florida will maintain moderate to fresh easterly breezes, shifting more southeasterly overnight.
640 PM CDT Wed Apr 28 2021 The cold front continues to push through the southern part of the state. The cold front continues to push through the southern part of the state. A cold front will continue to make its way eastward through the state this afternoon into early tonight, providing a slight chance for light rain as the moisture has to make it through a dry boundary layer. Northwesterly winds and clouds will increase again during the day tomorrow ahead of a secondary, back door cold front. Expect warmer overnight temperatures in the mid 30s to low 40s for Thursday night with increased cloud cover.
1239 AM CDT Thu Apr 29 2021 Small compact upper low, likely being partially influenced by last nights convection and left over MCV, continues to drift slowly southward across far southwest Nebraska this afternoon. Should see a substantial rise in temperatures Thursday as a plume of warmer air (H85 temps of 10-12C) spread across the area.
959 PM MDT Wed Apr 28 2021 Satellite imagery and 500 mb RAP analysis showed southwest flow over the region today, as an upper closed low spun over eastern Arizona and western New Mexico. An upper trough gradually pushed across the High Plains, keeping skies cloudy through the day with light precipitation grazing the northwestern and southeastern zones. Temperatures fall into the mid 30s to low 40s tonight as northwest flow develops aloft behind the exiting trough. A warming trend begins on Thursday, when a broad ridge amplifies over the west coast. Winds taper off and shift towards the south overnight as temperatures fall into the upper 30s/low 40s and the ridge noses into the Plains.
1120 PM EDT Wed Apr 28 2021 Several rounds of showers and thunderstorms are expected with a cold front tonight and Thursday.
The low is expected to remain quasi-stationary or slowly drift to the south. Since the upper low will be in relatively close proximity, low to moderate rain chances will continue over north Texas and southern Oklahoma today--decreasing with northward extent. Otherwise, a relatively drier air mass will be in place for most locations in the wake of the cold front with seasonable temperatures and northerly winds.
447 AM EDT Thu Apr 29 2021 The weather conditions across the Florida Keys remain under the influence of the subtropical ridge of high pressure located near Bermuda. Despite the increase in moisture, the shower activity has remained constricted by the subsidence provided by the ridge and lack of mid to upper level support. The subtropical ridge will continue to be the main feature of interest in our weather.
230 AM CDT Thu Apr 29 2021 Upper low continues to slowly churn across the Sun Country of West Texas early this morning with models having initialized this feature more coherently than yesterday morning.
Overnight lows should fall into the lower to mid 40s.
1113 PM MDT Wed Apr 28 2021 Residual moisture and instability within the upper trough axis across CO has triggered another round of showers across the mountains this afternoon, with snow falling across the higher elevations above 8500-9000 feet. Overall should see a downward trend in pops late this afternoon and evening as focus for showers pulls southward in better proximity to the upper low to our south. Additional local accumulations of up to 2 inches will be possible across the higher elevations with any embedded convective showers. Thursday will be dry and warmer across southern CO with temperatures rebounding into the 70s across the plains and 50s and 60s for the mountain/valley communities.
308 AM EDT Thu Apr 29 2021 Showers and possible thunderstorms are expected today and part of tonight as low pressure and a cold front cross the area.
1145 PM EDT Wed Apr 28 2021 High pressure will prevail through Thursday.
The nighttime microphysics satellite imagery showed mid level clouds returning to the region with a gap in the clouds in advance of the approaching trough. Water vapor satellite imagery, heights, and lightning show moisture from the Southern Plains across the Mississippi Valley into the lower Great Lakes. The closed low pressure system was over New Mexico with the northern stream trough swinging through the Upper Mississippi Valley with the bulk of the convection ahead closed low over the Southern Plains. Today and tonight, the trough that extends into Minnesota will swing through the forecast area today and into the Ohio River Valley and toward New York City. The frontogenesis weakens somewhat farther south into the forecast area and the lower level moisture is deeper north of the forecast area. The mid-level ridge over the western U.
1038 PM MDT Wed Apr 28 2021 The H5 ridge continues to build into WY during the next 36 hours, continuing the tranquil and nearly clear skies. H7 temperatures currently right around 0C will increase as the ridge moves in tomorrow, increasing to 3 to 7C Thursday afternoon. Lows will remain in the 30s and 40s for all but the highest elevations.
Utilized RAP to lower temperatures over the next several hours, which brought lows in the north central down to the low to mid 20s. The cold front continues to push through the southern part of the state. The cold front continues to push through the southern part of the state. A cold front will continue to make its way eastward through the state this afternoon into early tonight, providing a slight chance for light rain as the moisture has to make it through a dry boundary layer. Northwesterly winds and clouds will increase again during the day tomorrow ahead of a secondary, back door cold front. Expect warmer overnight temperatures in the mid 30s to low 40s for Thursday night with increased cloud cover.
200 AM EDT Thu Apr 29 2021 Unsettled weather will continue into Thursday as a wave of low pressure will track along a frontal boundary resulting in widespread rain.
205 AM MDT Thu Apr 29 2021 Warmer the next few days as upper level ridge over the Pacific Northwest migrates eastward. Northwest flow aloft ahead of the ridge axis will cover the area today and this grabs some high level Pacific moisture streaming over the ridge. Warmer air aloft will move into the area today which will boost temperatures upward with favorable mixing but cloud cover this afternoon may cap a couple of degrees off the temperatures.
225 AM EDT Thu Apr 29 2021 Warm and dry today as an offshore high pressure system continues breezy southerly flow into the region.
A few sprinkles remain along the northern periphery of the area and will continue to diminish with upper ridging building in. VFR conditions will continue through the next 12-18 hours as a cold front approaches from the west. Diegan Chattanooga Airport, TN 83 60 76 51 77 / 40 80 10 0 0 Knoxville McGhee Tyson Airport, TN 82 57 73 46 74 / 40 80 10 0 0 Oak Ridge, TN 82 56 73 46 74 / 50 80 10 0 0 Tri Cities Airport, TN 81 54 69 41 70 / 50 80 20 0 0.
121 AM EDT Thu Apr 29 2021 High pressure will prevail through Thursday.
1223 AM CDT Thu Apr 29 2021 Shower and thunderstorm chances will continue tonight, with the higher chances shifting southward with time.
226 AM CDT Thu Apr 29 2021 Upper low continues to slowly churn across the Sun Country of West Texas early this morning with models having initialized this feature more coherently than yesterday morning.
Currently, a strong cold front is situated just north & west of the Ohio & Mississippi Rivers.
Currently, a cold front was moving across western Arkansas and into northeast Texas. The cold front will continue to move slowly east across Arkansas today. Temperatures will be a little cooler than yesterday with highs in the mid 70s to mid 80s. The cold front will move quickly through the region tonight with thunderstorms moving out of the Mid-South this evening.
as low pressure will track northern Ohio to the Adirondacks. the higher terrain south of Buffalo and Rochester could receive an inch or more.
Temperatures this afternoon should reach the mid 70s, although with dewpoints in the lower 30s and a bit more west component, temperatures could easily reach the upper 70s.
221 AM MDT Thu Apr 29 2021 Satellite imagery and 500 mb RAP analysis showed southwest flow over the region today, as an upper closed low spun over eastern Arizona and western New Mexico. An upper trough gradually pushed across the High Plains, keeping skies cloudy through the day with light precipitation grazing the northwestern and southeastern zones. Temperatures fall into the mid 30s to low 40s tonight as northwest flow develops aloft behind the exiting trough. A warming trend begins on Thursday, when a broad ridge amplifies over the west coast. Winds taper off and shift towards the south overnight as temperatures fall into the upper 30s/low 40s and the ridge noses into the Plains.
220 AM EDT Thu Apr 29 2021 High pressure centered offshore will cover the Southeast states through today. A weak cold front will cross our region late tonight.
240 AM MDT Thu Apr 29 2021 An upper-level ridge has begun building over the western CONUS and it will control our weather for the next several days. Some cumulus clouds may build over the Divide later this afternoon, and highs will be 5-10 degrees warmer than yesterday. This could lead to localized red flag conditions given the low humidity. Tomorrow the ridge noses even further into our region allowing the temperatures to continue their climb. The ridge of high pressure over the Great Basin will be slanted eastward with increasing latitude. This leaves our forecast area under west-southwest flow through as the next trough approaches.
Brisk northwest flow and weak cold air advection will keep temperatures in check, with readings warming to near-normal values in the low to mid 60s.
311 AM EDT Thu Apr 29 2021 Temperatures continue to rise through the remainder of this week due to high pressure offshore.
226 AM MDT Thu Apr 29 2021 Split longwave trough stretches across the central CONUS just east of our CWA, as a ridge builds over the west coast. As the upper ridge shifts eastward over the northern plains, warm air advection will continue.
Over the next two days the Northern Rockies will reside on the apex of the proverbial coaster as a western United States ridge of high pressure reaches peak intensity later this evening.
929 PM PDT Wed Apr 28 2021 High pressure will result in warm and dry conditions through Thursday, with temperatures peaking in the mid 70s to lower 80s.
227 AM EDT Thu Apr 29 2021 Several rounds of showers and thunderstorms are expected with a cold front tonight and Thursday.
An approaching cold front will continue to act on a marginally unstable and moisture rich air mass to result in periods of showers and scattered thunderstorms today. Additional shower and thunderstorm activity was focused along and just ahead of the approaching cold front from southeast Missouri into southern Illinois. The cold front will steadily make eastward progress across the forecast area today. The chance for showers and thunderstorms will gradually taper off from the northwest as the cold front makes southeastward progress through the afternoon.
1246 AM CDT Thu Apr 29 2021 A cold front in eastern Oklahoma will slowly move through Arkansas tonight and Thursday.
Early morning analysis depicts a slow moving cold front stretched from roughly Litchfield to Paris IL. Widely scattered showers will be possible across areas along/north of I-74 later this afternoon into early evening as mid-level heights fall and temperatures cool with the arrival of the upper trough.
High pressure will keep winds light, less than 10 kts.
From there, another day of above normal temperatures with highs in the mid to upper 80s across the area with temperatures in the high 80s across the far southern parts of the CWA.
The Guadalupe Mountains could see rain snow mix above 7500 ft as 700mb temps will dip below freezing today into Fri. On Fri the areas that will have the highest chances of precip will shift down south to the Davis Mountains into Rio Grande as the cutoff low will be positioned just east of the Big Bend Area.
Upper level flow pattern today over the Northern Plains will be northwesterly as a ridge builds over the Northern Rockies and a trough deepens over the Great Lakes. A wave embedded in the northwest flow will move into the Upper Mississippi and Great Lakes regions, with a glancing cold front expected to cross the northern and eastern portions of the state later today, but with little noticeable impact. Highs in the low 60s far north to around 70 in the south, with partly cloudy skies.
/issued 139 AM EDT Thu Apr 29 2021/ The Atlantic high pressure axis sits across north Florida today and will sink to south Florida Friday as a cold front pushes into the southeast U.
/NF/ Today and Tonight: Ahead of a cold front's arrival, another warm and humid day is expected across the region today. As the evening and overnight hours progress, the cold front sagging southward becomes less favorably aligned with the mean flow aloft, and severe potential should drop off.
Early morning analysis depicts a slow moving cold front stretched from roughly Litchfield to Paris IL. Widely scattered showers will be possible across areas along/north of I-74 later this afternoon into early evening as mid-level heights fall and temperatures cool with the arrival of the upper trough. Canadian high pressure settles in by the end of the week, which will keep things dry and seasonable on Friday.
After a dry and mild day Friday, shower and thunderstorm chances will return over the weekend as an upper low currently over northern Mexico moves slowly east into southwest Texas, and then turns northeast into eastern Oklahoma.
This process should continue to speed up as the synoptic cold front moves southeast. In addition, the low-level jet is veering with time and better moisture convergence is shifting more toward the lower Ohio Valley. (Tonight - Friday) Decreasing clouds are forecast tonight as a surface anticyclone moves southward through the central Plains.
1039 AM EDT Thu Apr 29 2021 A large ridge complex is in control of the sensible weather elements across the Florida Keys. Temperatures are in the lower 80s, and dewpoints are in the lower 70s, which is a few degrees higher than yesterday. The subtropical ridge near Bermuda will weaken over the next few days, resulting in diminished breezes across the Keys coastal waters.
A cold front will reach the coast Friday afternoon then continue inland Friday night with a slight chance to chance of very light precipitation, mainly in western Oregon.
Precipitation won't make a return in the short term, thanks to the building in of an upper level ridge and a very dry, well mixed boundary layer. Thus dewpoints will be a bit higher, but temperatures will be on the increase as well thanks to warmer air aloft, particularly across central SD (highs in the 80s near/west of the MO River).
A ridge of high pressure will lead to warm and dry weather through the rest of the week, with milder conditions along the coast. A ridge of high pressure continues to gradually shift east while the marine layer will deepens. By Friday the ridge will begin to break down allowing inland temperatures to slowly decrease.
408 AM PDT Thu Apr 29 2021 High pressure will result in warm and dry conditions today, with temperatures peaking in the mid 70s to lower 80s. A mostly dry cold front will push across the Inland Northwest on Friday. Today through Friday night: An upper ridge will remain in place today with southwest flow ahead of a cold front bringing well above normal temperatures. This morning an initial weak warm front has brought light rain from Republic up towards Lauier but this should be coming to an end by early morning as the front lifts north of the region. The cold front will reach the Cascades late tonight into Friday morning with rain likely developing near the Cascade crest with high snow levels around 7000-8000 feet.
224 AM MST Thu Apr 29 2021 A large closed low will slowly move eastward across northern Mexico, allowing a strong area of high pressure to build over the Southwest.
Currently, a cold front was moving across western Arkansas and into northeast Texas. The cold front will continue to move slowly east across Arkansas today. Temperatures will be a little cooler than yesterday with highs in the mid 70s to mid 80s. The cold front will move quickly through the region tonight with thunderstorms moving out of the Mid-South this evening. Temperatures will be cooler tonight behind the front with lows Friday morning in the mid 50s to lower 60s.
This flow, along with considerable cloud cover, has also resulted in another night of well above normal temperatures, with current readings in the low to mid 70s.
As the weak cold front continues to progress east-southeastward, winds will subside across all three TAF sites before picking up to moderate speeds out of the north. At the surface, a weak cold front is currently progressing through Central Texas and is expected to reach Deep South Texas later this morning. With CAA being weak and delayed behind the wind shift, highs will still reach the low to mid 90s across Deep South Texas and the Rio Grande Valley early this afternoon. Temperatures tonight will be a couple of degrees cooler than Wendesday night with lows in the upper 60s to lower 70s, and Friday will be about 10 degrees cooler than today with highs in the low to mid 80s.
Today Through Friday Night This upper ridge will be suppressed to the southeast by an approaching upper moving through the Midwest. The southwest upper low will become cutoff from the main flow and blocked by the upper ridge in the Gulf of Mexico, keeping it over west Texas through Friday. A slow moving cold front will continue to bring showers and thunderstorms across the area today. North, west and southwest sections will have the highest threat of flash flooding. High pressure will build over the state tonight and Friday. Lows tonight will be in the lower 50s to lower 60s and then lower to mid 50s Friday night.
546 AM MDT Thu Apr 29 2021 High pressure continues to push eastwards across the Pacific Northwest as the cold frontal boundary that dug southeast across the Midwest becomes nearly stationary and extends from the Mid- Atlantic southeast towards Texas. A dry and warm pattern is setting up as the region becomes dominated by an upper level ridge.
Temperatures were still in the lower to mid 70s across the region at 8z. All thanks to the deep closed low that is still dropping into northern Mexico. A lot has changed since last looking at this system and it now appears that this low will become cutoff on Friday as the northern stream s/w passes through the Mississippi Valley area and into the Appalachians tonight.
Much warmer today across east-central FL as afternoon temps rise into the mid 80s along the coast, and upper 80s to low 90s inland.
A large closed low will slowly move eastward across northern Mexico, allowing a strong area of high pressure to build over the Southwest.
Models have upper ridging over the forecast area today and tonight with moderately strong north-northeasterly flow aloft. The low level pressure and wind fields point to normal diurnal wind patterns through tonight.
At the surface, a weak cold front is currently progressing through Central Texas and is expected to reach Deep South Texas later this morning. With CAA being weak and delayed behind the wind shift, highs will still reach the low to mid 90s across Deep South Texas and the Rio Grande Valley early this afternoon. Temperatures tonight will be a couple of degrees cooler than Wendesday night with lows in the upper 60s to lower 70s, and Friday will be about 10 degrees cooler than today with highs in the low to mid 80s.
High pressure will continue to strengthen over the area through Friday.
451 AM MDT Thu Apr 29 2021 Split longwave trough stretches across the central CONUS just east of our CWA, as a ridge builds over the west coast. As the upper ridge shifts eastward over the northern plains, warm air advection will continue.
219 AM PDT Thu Apr 29 2021 High pressure will result in warm and dry conditions today, with temperatures peaking in the mid 70s to lower 80s. A mostly dry cold front will push across the Inland Northwest on Friday. Today through Friday night: An upper ridge will remain in place today with southwest flow ahead of a cold front bringing well above normal temperatures. This morning an initial weak warm front has brought light rain from Republic up towards Lauier but this should be coming to an end by early morning as the front lifts north of the region. The cold front will reach the Cascades late tonight into Friday morning with rain likely developing near the Cascade crest with high snow levels around 7000-8000 feet.
642 AM CDT Thu Apr 29 2021 The slow moving cold front has entered northwest Arkansas and will continue to move through the state today. Today Through Friday Night This upper ridge will be suppressed to the southeast by an approaching upper moving through the Midwest. The southwest upper low will become cutoff from the main flow and blocked by the upper ridge in the Gulf of Mexico, keeping it over west Texas through Friday. A slow moving cold front will continue to bring showers and thunderstorms across the area today. North, west and southwest sections will have the highest threat of flash flooding. High pressure will build over the state tonight and Friday. Lows tonight will be in the lower 50s to lower 60s and then lower to mid 50s Friday night.
Upper ridging situated across the wester U. In addition, west winds will likely ramp up as a cold front approaches late Friday.
509 AM MDT Thu Apr 29 2021 An upper-level ridge has begun building over the western CONUS and it will control our weather for the next several days. Some cumulus clouds may build over the Divide later this afternoon, and highs will be 5-10 degrees warmer than yesterday. This could lead to localized red flag conditions given the low humidity. Tomorrow the ridge noses even further into our region allowing the temperatures to continue their climb. The ridge of high pressure over the Great Basin will be slanted eastward with increasing latitude. This leaves our forecast area under west-southwest flow through as the next trough approaches.
317 AM MDT Thu Apr 29 2021 High pressure continues to push eastwards across the Pacific Northwest as the cold frontal boundary that dug southeast across the Midwest becomes nearly stationary and extends from the Mid- Atlantic southeast towards Texas. A dry and warm pattern is setting up as the region becomes dominated by an upper level ridge.
Coverage of showers and storms should diminish late morning with the cold front pushing into southern and eastern areas, but still lingering rain chances through the afternoon, tonight, and Friday with the upper level low hanging out to the west.