Aikyam-Lab/Synoptic-Bench huggingface dataset:
A cold front will move through the forecast area late this morning and early this afternoon. However, cold advection will be minimal behind the front while thicknesses will increase in response to an upper level ridge moving slowly eastward toward the region. Swapping out yesterday's modest downslope component for north winds and taking into account the expected increase in thicknesses supports highs this afternoon near those of yesterday across the north where some weak cold advection will occur to several degrees warmer across the southeast where the warm sector will remain in play the longest.
(Rest of today and tonight) A benign weather pattern continues through the near-term period thanks to a large-scale trough over the eastern Hudson Bay and a large-scale ridge over the subtropical Pacific. The presence of modest moisture and mechanical mixing will keep lows in the low 50s. Meister (Wednesday through Thursday night) The previously-mentioned low pressure will wander east-southeastward early tomorrow morning as it dies. The pattern will become more amplified as a trough digs in just east of our area on Thursday.
(Today through Thursday night) Latest model agreement continues to see a ridge building in the upper levels of the atmosphere which will keep the Panhandles under dry conditions for the week. However closer to the surface, latest from the CAMs is still seeing a weak-dry cold front moving in from the north that will see surface winds and low-level flow shift to northerly during the early morning hours.
306 AM CDT Wed Apr 9 2025 - Gusty southwest winds of 25 to 35 mph today, with a return of warmer temperatures into the upper 60s to lower 70s.
This morning, high pressure is centered over the Upper Ohio Valley with ridging extending into the western Gulf. Low pressure is located near the mid Missouri Valley and will produce a couple chances for rain across central Illinois today.
Nocturnal cooling after sunset drops surface temperatures overnight below freezing with most of the region dipping into the upper 20s. The high pressure quickly transits the region today with a trough on its heels progressing across the central Plains. This trough tries to bring some precipitation to the area during the day; however, antecedent dry air left in the wake of the high will make developing precipitation difficult.
Along the wrn periphery of the ridge, a warm front was situated near the AR/OK border. Drier and cooler conditions return Thu ngt following the passage of the CDFNT.
Surface chart currently depicts low centered over the MT/ND border with warm frontal boundary running south into western SD this afternoon. Trailing cold front stretches from southeastern MT down into central WY. Areas of showers expected to increase over the afternoon and evening as cold front crosses the region. Forecast QPF amounts have dropped somewhat, given limited moisture with dewpoints in the low 30s. Cooler temperatures are in store for Wednesday, with highs in the 50s to mid 60s. Upper ridge builds over the western CONUS on Thursday, sliding into the northern and central plains as we move into the weekend, promoting a dry and warming trend.
1218 AM CDT Wed Apr 9 2025 - Gusty southwest winds of 25 to 35 mph on Wednesday, with a return of warmer temperatures into the upper 60s to lower 70s.
An amplified ridge-trough pattern aloft exists over North America, with the Midwest under the influence of northwest flow. An initial wave of showers will blossom along the advancing warm front late tonight into Wednesday morning, though limited moisture available to the wave combined with weak forcing overall will limit precipitation coverage to north and east of St. Another threat for light rain, and perhaps a rumble of thunder, will accompany the cold front on its way through the region Wednesday evening along and south of the I-44 (MO) and I-64 (IL) corridors. MRB With the stronger cold front and mid-level forcing in place Thursday, expect more coverage (closer to 50-60% at most) of showers with a few weak thunderstorms in the afternoon when instability maximizes.
Lows tonight into Thursday morning should fall into the mid 50s to the lower 60s across much of the area. Warmer temperatures will occur on Thursday as a 500mb ridge builds to the west.
132 AM EDT Wed Apr 9 2025 Cool and dry conditions will continue tonight as high pressure builds into the region. Dry weather will accompany another ridge of high pressure this weekend. The high will shift off to the east on Wednesday with southerly flow developing for the Ohio Valley. Temperatures will be warmer, but remain below seasonal normal values.
309 AM EDT Wed Apr 9 2025 - High pressure dominates the forecast through much of this week and into the weekend, though a system passing south of the region will introduce a low chance (10-30%) for rain/snow showers today through tonight.
1131 PM EDT Tue Apr 8 2025 Low pressure crosses the area tonight, exiting early tomorrow morning. High pressure builds in on Wednesday into Thursday.
The second is closer to I-94 near the low track that could see some higher precipitation rates that overcome warmer ground temperatures. - Warming trend through the weekend The upper troughing will move east toward the weekend and with it will go the cold air. Rising heights will lead to warmer temperatures.
- Breezy southerly winds this morning and afternoon ahead of a weak cold front. - Reinforcing frontal boundary moves through the region Thursday morning/ afternoon bringing cooler temperatures to end the week.
A weak cold front is forecast to move into the Big Country during the late afternoon hours, but still expect temperatures ahead of the front to reach the lower 90s for most locations.
209 AM EDT Wed Apr 9 2025 - High pressure dominates the forecast through much of this week and into the upcoming weekend, though a system passing south of the region Wednesday/Thursday will introduce a low chance (15-35%) for rain/snow showers. 00z soundings from KINL and KMPX show a lot of dry air to overcome in the low to mid levels first for pcpn to hit the ground, so slight chance pops still looks good. The upper air pattern the rest of the week through the weekend features deeply anomalous cutoff lows over eastern Canada and the Gulf of Alaska, separated by a tall ridge that extends from WY/MT all the way to northern Nunavut.
1203 AM CDT Wed Apr 9 2025 The influence of high pressure continues this evening as the local SHV ASOS suggests calm winds, while satellite advertises clear skies, a signal that radiational cooling will support cooler overnight lows, even with the return of some light southerlies through the early AM hours. A large upper level ridge over the Desert Southwest will steer northwest flow into the ArkLaTex.
An upper trof axis just to the east of the forecast area this morning will move off into the western Atlantic through Thursday.
An area of low pressure will track north of the region through tonight. Steep mid level lapse rates approaching 8 C/Km and lower freezing levels look to support a hail risk with any storms that could become severe.
350 AM EDT Wed Apr 9 2025 - A touch of rain/snow today/tonight/early Thursday - Warmer temperatures this weekend Pattern/synopsis: High pressure over OH extends ridging northward. The high and associated ridging will continue east, and return flow will be deepening with time. Though we are warm advecting today, any chance to see appreciably warmer temps today will be hindered by cloud cover. Pattern Synopsis and Forecast: Lingering rain/snow showers early Thursday as short wave and subsequent low pressure system swing to the east.
1133 PM CDT Tue Apr 8 2025 (Tonight through Wednesday night) Current surface observations/analysis show a lee-side trough in place across the plains of eastern New Mexico southward into west Texas. For tonight, the surface pressure pattern changes little, with low pressure to the north and high pressure to the east and southeast. This will lead to southerly winds in the lower levels across south central Texas, with some breezy conditions expected across the higher terrain of the Hill Country and southern Edwards Plateau. Winds over the higher terrain of the Hill Country and southern Edwards Plateau could remain gusty through the evening hours.
Winds will be strongest over the higher terrain of the Hill Country and southern Edwards Plateau this morning though the afternoon hours, with gusts as high as 30 mph for these locations. The warm up continues this afternoon with above normal highs in the mid 80s east to the low 90s along the Rio Grande. A cold front will be located just northeast of South Central Texas Thursday, though it may reach into portions of the Hill Country or southern Edwards Plateau late Thursday afternoon.
We are waking up drier and much cooler this morning. This trend will continue for Thursday with another cool morning with temperatures around 60 degrees and highs in the low 80's.
Freezing temperatures are expected again late tonight in eastern IL, and a Freeze Warning is in effect. Auten High pressure will continue to migrate off to the southeast tonight as low pressure currently emerging from the Rockies into the northern Plains approaches. This low will initiate a low level jet that could provide enough lift and warm advection to produce scattered showers developing after midnight, however dry low levels should keep precipitation amounts fairly modest, generally around a tenth inch or less according to most model guidance. A second round of showers and better chance for thunderstorms looks to arrive late afternoon through evening as the cold front moves into the area.
First things first, the upper-air pattern will feature ridging across the southwest CONUS and troughing over the eastern CONUS which leaves us in northwest flow aloft throughout. For tonight, lows will range from the lower to mid 50s with increasing clouds across our northern zones towards Thursday morning. Warmer temperatures are expected on Thursday, reaching the upper 70s to lower 80s across the region. Upper-air pattern continues to feature a ridge across the southwest CONUS with troughing across the eastern CONUS through the end of the week, with ridging shifting east towards further into our region into the weekend.
Temperatures have steadily warmed from the teens and low 20s this morning to roughly the upper 40s and low 50s as weak southerly flow develops ahead of the low pressure to our west. Low level moisture wonât be overly prominent tomorrow, with model soundings depicting an âinverted-vâ in the low levels, thanks to the dry, well-mixed boundary layer. This, in conjunction with the low weakening as it moves overhead, will inhibit any significant rainfall as the system moves through.
(Today through Thursday) High pressure for the next 24 hours. A positively tilted trough will slide southeast from the Upper Mississippi Valley into the Tennessee Valley late in the afternoon on Thursday along with a weak cold front front. Models are trying to increase dewpoints from the mid 30s into the low to mid 50s by the afternoon. 16 Previous short-term discussion: (This evening through Wednesday) NW winds this afternoon behind a reinforcing cold front should taper down during the evening hours becoming light/variable to near calm for the late night/pre-dawn hours and into the day on Wednesday. Surface ridging will settle in over E Conus this afternoon with gradients relaxing. The ridge should slowly drift toward the E Coast through the short term.
- While we do not issue frost/freeze headlines until May 1, conditions will be favorable for frost this morning with much of the area at or below freezing. (Tonight through Thursday Night) A broad northwesterly flow aloft is in place across the region with high pressure continuing east across the Ohio and Tennessee Valleys. Most of Middle TN will drop below freezing with lows in the upper 20s to the lower 30s. By Wednesday afternoon, high pressure continues toward the East Coast and we'll transition to a more southerly low-level flow ahead of a clipper system approaching from the northwest. Forcing is expected to maximize during peak heating, with dewpoints in the low to mid 50s ahead of the cold front.
Mid level water vapor imagery depicts the upper ridging crossing the central conus this afternoon with a noted embedded wave trailing into the western high plains. Broad troughing stretches from the northeast back through the Texas Gulf coast while a series of systems are entering the Pac NW.
200 AM CDT Wed Apr 9 2025 - A pair of weak, dry cold front will pass through southwest KS Wednesday and Thursday morning, briefly halting the warming trend.
(Rest of tonight and Wednesday) Synoptic scale troughing was extending southward across the Deep South, from an upper low situated along the Labrador coast. The trough however was heading eastward, which was causing heights to rise over the region. A northerly flow of 5-15 mph made it feel 5-10 degrees cooler.
A warming and drying trend will return Wednesday into Thursday before conditions turn cooler, showery, and breezy for the end of the week. Wednesday through Thursday: High pressure will build over the region as the jet stream shifts north, bringing drier weather.
121 AM EDT Wed Apr 9 2025 Light breeze this evening has kept temperatures running a couple degrees warmer than forecast, so made slight changes.
1236 AM CDT Wed Apr 9 2025 (Rest of tonight and Wednesday) Synoptic scale troughing was extending southward across the Deep South, from an upper low situated along the Labrador coast. The trough however was heading eastward, which was causing heights to rise over the region. A northerly flow of 5-15 mph made it feel 5-10 degrees cooler.
(Today through Thursday) Upper trough now well to the east, from New England to the eastern Gulf, with upper ridging over the Intermountain West. At the surface, high pressure extended from the eastern Great Lakes to the western Gulf. Clear skies across the area, with temperatures mainly ranging from the upper 40s to mid 50s, although the warmer waters of Lake Pontchartrain adjacent to Lakefront Airport are holding temperatures there in the mid 60s. Forecast soundings would indicate high temperatures tomorrow should be about 3-5F warmer, which would put a few locations in the lower 80s.
In fact, drier air behind the front will likely mean temperatures across northwest Oklahoma are warmer than areas ahead of the front across central and southeast Oklahoma.
A weak cold front will push into the region from the northwest through Thursday afternoon and evening.
The increase in winds is in response to an approaching area of low pressure that may bring a few showers to the region through Thursday. Later Wednesday and Wednesday night, several vort maxes will rotate across the Upper Midwest within a broad trough and should facilitate an uptick in shower activity again Wednesday night and Thursday. By Thursday night, the trough digs into the southeastern U. and ridging begins to build into the Upper Midwest. The ridging will bring above normal temperatures for the weekend.
- While we don't do frost/freeze headlines until May 1, conditions will be favorable for frost formation Wednesday morning with much of the area at or below freezing. (Tonight through Thursday Night) A broad northwesterly flow aloft is in place across the region with high pressure continuing east across the Ohio and Tennessee Valleys this evening. Most of Middle TN will drop below freezing tonight with lows in the upper 20s to the lower 30s forecast. By Wednesday afternoon, high pressure continues toward the East Coast and we'll transition to a more southerly low-level flow ahead of a clipper system approaching from the northwest. Warm advection and sunshine will promote a nice warm-up, with highs in the low to upper 60s. Forcing is expected to maximize during peak heating, with dewpoints in the low to mid 50s ahead of the cold front.
(Today through Thursday Night) Mid/upper ridging to our west will maintain a dry nw flow aloft.
Highs today will warm into the low 60s central and south RRV with 50s elsewhere.
------------------------------------------------------------------- A weak trough will have crossed the forecast area through dawn bringing an end to the scattered snow showers over the north. Highs expected today will be warmer than yesterday but still 5 to 10 degrees below normal. ------------------------------------------------------------------- Tonight, a deepening 500mb trough will enhance surface convergence along the inflection point of the upper jet, resulting in increasing precipitation chances. As the low occludes, it will slow it progression speed as it drops back under the upper low into Thursday and Thursday night. Should the low be a little earlier, it may even allow for some snow chances early Thursday morning, particularly northeast of Pittsburgh.
- Drier and warmer weather expected for the end of the week and into the weekend. A slow moving low pressure system will move towards the upper Mississippi Valley today, then slide southeast towards the Ohio Valley tonight and Thursday. High pressure will then build in from the west, providing dry conditions from Thursday night through the first part of the weekend.
343 AM EDT Wed Apr 9 2025 Winds will calm today as high pressure builds in though it will still be chilly for April. Water vapor imagery this morning shows the upper level low pulling off to the NE with ridging nudging in from the west slowly. Weak ridging will build in today with a few hours of sun through the morning into mid afternoon before mid and high clouds begin to move in from the SW as a trough digs into the Great Lakes region. Upper level trough continues to progress east Thursday night enhancing southerly flow over our region. Parts of the western Catskills will see cooler temperatures with lows near freezing.
252 AM EDT Wed 9 2025 High pressure will shift offshore today and tonight allowing for moderating temperatures and dry conditions.
619 AM EDT Wed Apr 9 2025 (Today and tonight) High pressure will dominate the weather today with light winds and abundant sunshine.
Early this morning, a cold front is knocking on our door. Breezy northerly wind behind the front will do little to inhibit warmer temperatures today with highs in the mid to upper 70s expected.
645 AM EDT Wed 9 2025 High pressure will shift offshore today and tonight allowing for moderating temperatures and dry conditions.
Temperatures will be a little warmer than yesterday, reaching into the 60s in most spots. Sunny this afternoon with warmer, near normal temperatures. This will result in warmer temperatures today near normal. With increasing mid to high level clouds and southerly flow, temperatures tonight will be warmer across the region with no risk of frost into Thursday morning. Showers and thunderstorms, some severe with large hail, possible Thursday afternoon ahead of a cold front.
946 AM EDT Wed Apr 9 2025 Low pressure will exit across Nova Scotia this morning.
A ridge of high pressure across the west coast will result in mostly sunny skies, above normal temperatures and light winds for the second half of the work week, with minor HeatRisk concerns in the afternoon. (Today and tonight) Upper level ridging will continue to gradually amplify today, steering high cirrus clouds to our north. As the ridge axis shifts farther inland tonight, a return of weak onshore flow and a weak marine layer will bring a return to some stratus development along the coast tonight into Thursday morning.
Otherwise, dry and warmer weather is expected today through Thursday.
- A ridge of high pressure builds over the region on Thursday causing warm and dry conditions. A ridge of high pressure slides over the region on Thursday allowing temperatures to climb dramatically.
555 AM CDT Wed Apr 9 2025 (Today) A clear, cold morning across the Tennessee Valley, with 07z temperatures in the low to mid 30s across the region -- with a drop of an additional 3-4 degrees likely before sunrise. With high pressure controlling our sensible weather across the area, expect clear/sunny conditions to continue.
740 AM CDT Wed Apr 9 2025 An upper trof axis just to the east of the forecast area this morning will move off into the western Atlantic through Thursday.
A brief period of light freezing rain or drizzle is possible early this morning north of Brainerd and again early Thursday morning in portions of northwest Wisconsin.
632 AM EDT Wed Apr 9 2025 Winds will calm today as high pressure builds in though it will still be chilly for April. Water vapor imagery this morning shows the upper level low pulling off to the NE with ridging nudging in from the west slowly. Weak ridging will build in today with a few hours of sun through the morning into mid afternoon before mid and high clouds begin to move in from the SW as a trough digs into the Great Lakes region. Upper level trough continues to progress east Thursday night enhancing southerly flow over our region. Parts of the western Catskills will see cooler temperatures with lows near freezing.
540 AM EDT Wed Apr 9 2025 Low pressure will exit across Nova Scotia this morning.
510 AM CDT Wed Apr 9 2025 - A pair of weak, dry cold front will pass through southwest KS Wednesday and Thursday morning, briefly halting the warming trend.
610 AM EDT Wed Apr 9 2025 Low pressure will exit across Nova Scotia this morning.
421 AM PDT Wed Apr 9 2025 A ridge of high pressure across the west coast will result in mostly sunny skies, above normal temperatures and light winds for the second half of the work week, with minor HeatRisk concerns in the afternoon. (Today and tonight) Upper level ridging will continue to gradually amplify today, steering high cirrus clouds to our north. As the ridge axis shifts farther inland tonight, a return of weak onshore flow and a weak marine layer will bring a return to some stratus development along the coast tonight into Thursday morning.
529 AM CDT Wed Apr 9 2025 - Gusty southwest winds of 25 to 35 mph today, with a return of warmer temperatures into the upper 60s to lower 70s.
A cold front that swept through during the overnight has left a stratus deck across the region. Temperatures are holding in the lower 70s with dew points very comfortably in the lower to mid 60s. A low to mid level trough will remain across the region today and still has quite a bit of moisture associated with it. A building high pressure cell across the Gulf coupled with a low pressure near the Bahamas will promote another surge tonight. The high/low pair will remain in play through the end of the week maintaining peaks during the night and lulls during the day.
The day is off to a quiet start across the region as cooler and drier air continues filtering in behind the cold front that moved through yesterday. We are waking up drier and much cooler this morning. This trend will continue for Thursday with another cool morning with temperatures around 60 degrees and highs in the low 80's.
(Today through Thursday) High pressure for the next 24 hours. A positively tilted trough will slide southeast from the Upper Mississippi Valley into the Tennessee Valley late in the afternoon on Thursday along with a weak cold front front. Models are trying to increase dewpoints from the mid 30s into the low to mid 50s by the afternoon.
624 AM EDT Wed Apr 9 2025 - High pressure dominates the forecast through much of this week and into the weekend, though a system passing south of the region will introduce a low chance (10-30%) for rain/snow showers today through tonight.
658 AM EDT Wed Apr 9 2025 - A touch of rain/snow today/tonight/early Thursday - Warmer temperatures this weekend Pattern/synopsis: High pressure over OH extends ridging northward. The high and associated ridging will continue east, and return flow will be deepening with time. Though we are warm advecting today, any chance to see appreciably warmer temps today will be hindered by cloud cover. Pattern Synopsis and Forecast: Lingering rain/snow showers early Thursday as short wave and subsequent low pressure system swing to the east.
1236 PM CDT Wed Apr 9 2025 An upper trof axis just to the east of the forecast area this morning will move off into the western Atlantic through Thursday.