Aikyam-Lab/Synoptic-Bench huggingface dataset:
Surface analysis this evening shows strong high pressure in place over eastern KS and western MO. Models continue to suggest saturation within the lower levels through the night. The cold front pushed off to the east earlier today, as seen by surface observation, leaving behind cloudy and cooler conditions across the area. Winds will also continue to gust to around 25 to 30 mph under a jet associated with the low exiting off to the NE. The high will track through the Ohio Valley for the remainder of the short term period, providing calm and variable winds for tomorrow.
The showers will continue to develop across the remainder of the area through the afternoon as instability associated with an upper trough arrives from the north.
345 AM EST Tue Mar 8 2022 We will be experiencing cooler than normal temperatures in the short term across eastern Kentucky, as a cooler air remains in place over the area.
Due to the warmer temperatures, have also increased snow levels to GFS/ECMWF levels which should give Wenatchee and Leavenworth mainly rain through Tuesday afternoon for precipitation that does fall.
1129 PM CST Mon Mar 7 2022 Zonal flow aloft and ridging at the surface brings a nice break to the fairly active weather pattern we have experienced over the past few days.
Afternoon temperatures will once again be well below early March normals, struggling to the lower to mid 40s.
1138 PM CST Mon Mar 7 2022 A strong cold front has pushed through leaving colder temperatures in place across central Illinois. Temperatures will bottom out in the 20s tonight then warm into the lower to mid 40s Tuesday.
1259 AM EST Tue Mar 8 2022 High pressure will build across the area Tuesday, offering dry weather and below normal temperatures.
315 AM EST Tue Mar 8 2022 Southeast Michigan will hold position within the downstream flank of broader mid latitude troughing through the mid-week period. Lingering low level thermal troughing below 850 mb suggests some degree of maintenance or renewed expansion of stratocumulus today, with the occasional flurry possible as diurnal lapse rates steepen sufficiently.
1042 PM EST Mon Mar 7 2022 A squashed mean layer ridge centered near the Yucatan spills to the northeast across Cuba, Florida, and the Bahamas. The maelstrom of short waves embedded within a positively tilted trough axis continues across the CONUS. The lower tropospheric profile is warmer, and the main inversion is less stout. Most of this developing convection will stay west of the Lower Keys. High pressure receding to the east into the central Atlantic will maintain moderate east to southeast breezes tonight.
427 AM EST Tue Mar 8 2022 We will be experiencing cooler than normal temperatures in the short term across eastern Kentucky, as a cooler air remains in place over the area. After a dry day today, an area of low pressure passing by to our south and southeast will bring widespread rain showers back to eastern Kentucky tonight and Wednesday. Winds should be light and variable today, but should increase slightly out of the north and northwest on Wednesday, as low pressure moves through the region.
This low, along with moisture associated with it, will lift northeast along a stalled frontal boundary south of the area. As rain exits east of the forecast area late tonight into early Wednesday morning, high pressure will steadily build into the forecast area from the west. With cloudy skies expected, highs today will range from around 50 to the lower 60s. Clouds will remain present across the forecast area overnight, as lows range from the upper 30s to the lower 50s.
615 AM EST Tue Mar 8 2022 High pressure builds across the region today. A cold front should move east across the area Wednesday night.
This trend won't last long though, as the next cold front (associated with an upper trough tracking through the northern tier of the U.
(Today and tonight) Scattered clouds continue to move through the region, which are keeping temperatures in the upper 20s and low 30s in some areas, and temperatures in the low 20s elsewhere. These clear skies and light surface winds will result in low temperatures mainly in the low to mid 20s.
251 AM MST Tue Mar 8 2022 The upper trough and associated surface cold front are swinging areas of light snow or flurries across the forecast area early this morning with northwest winds increasing behind the front. As the cooler air flows southward into the region today, the baroclinic zone will become enhanced as it stalls from Wyoming into Nebraska. The highest snow amounts are still expected in the convergence zone from the southern Black Hills into far southwestern South Dakota although the probability of >4 inches of snow in that area has greatly diminished.
343 AM PST Tue Mar 8 2022 Warmer and dry today with weakening offshore flow this morning.
Mostly clear conditions continue until clouds move in with a cold front late tonight into Wednesday morning. Temperatures will be a little cooler Wednesday with highs in the low to mid 30s.
We have been expecting a weak and moisture starved cold front to pass through the region.
539 AM CST Tue Mar 8 2022 A cold front currently poised from southeast North Dakota to western South Dakota will track through the region today. Even though amounts will be light overall, the Highway 20 corridor may not see anything more then a few flurries as mixing ahead of the front will keep low levels dry enough to prevent precip from wet bulbing down to the surface. Highs will hover at or just above freezing for most locations except for northwest Iowa, where the stronger mixing will help highs span into the 40s.
429 AM MST Tue Mar 8 2022 The upper trough and associated surface cold front are swinging areas of light snow or flurries across the forecast area early this morning with northwest winds increasing behind the front. As the cooler air flows southward into the region today, the baroclinic zone will become enhanced as it stalls from Wyoming into Nebraska. The highest snow amounts are still expected in the convergence zone from the southern Black Hills into far southwestern South Dakota although the probability of >4 inches of snow in that area has greatly diminished.
Moisture is limited to the low levels of the atmosphere, and expect mainly light showers or drizzle. Clouds are expected to hold strong east through the day and limit warming with temperatures topping out only in the lower 50s. West will see more sunshine and should warm into the lower to possibly mid 60s. Surface ridging passing over the region on Wednesday as well as some weak mid-level ridging will result in a pleasant day.
647 AM EST Tue Mar 8 2022 We will be experiencing cooler than normal temperatures in the short term across eastern Kentucky, as a cooler air remains in place over the area. After a dry day today, an area of low pressure passing by to our south and southeast will bring widespread rain showers back to eastern Kentucky tonight and Wednesday. Winds should be light and variable today, but should increase slightly out of the north and northwest on Wednesday, as low pressure moves through the region.
This is within an area of higher 850-500mb relative humidity ahead of an approaching upper level trough. 19Z Water vapor imagery and RAP analysis indicates short wave trough impacting the four corners region with another, more pronounced short wave trough diving south into Montana and Idaho. Four corners short wave trough will be forced to the east and graze the southern portion of the area. Area will be in between the departing short wave trough to the southeast and approaching system from the north. Expect increasing cloud cover and winds to become northerly as cold front builds into the area late in the afternoon and into the early evening.
A minor mid-level shrtwv trof passing n of the area today help low-level wly winds to deepen. Low-level thermal ridge will keep a far wwd location today thus the far sw-w reaches of the CWFA will have a more substantial warm up than those in the e. Broad cyclonic flow Wed will favor better organized lee trof and low-level thermal ridge.
936 AM EST Tue Mar 8 2022 High pressure builds across the region today. A cold front should move east across the area Wednesday night.
413 AM CST Tue Mar 8 2022 Rain returns to the forecast this afternoon as a low pressure system will move across the southeast United States.
353 AM CST Tue Mar 8 2022 A frontal boundary associated with low pressure tracking across Ontario will drop southward across the CWA this morning. High pressure will nose into the region from the northwest tonight, and will continue to drop southeast to encompass the entire Northern Plains by the end of the day Wednesday. Colder air will accompany the high, with below normal temperatures expected tonight and Wednesday.
/issued 413 AM CST Tue Mar 8 2022/ Rain returns to the forecast this afternoon as a low pressure system will move across the southeast United States.
457 AM EST Tue Mar 8 2022 UPDATED TO DUE TO AN INCREASE IN SHOWERS SOUTHWEST OF THE LOWER KEYS Partly cloudy and mild conditions prevailed along the Lower and Middle Keys, with temperatures near the middle 70s and southeast winds ranging from 10 to 15. But, an inverted trough continues to induce showers southwest of the Lower Keys. Like yesterday, the KKEY 00Z sounding showed a precipitable water value near or above the 75th percentile but the inversion has weakened to due low level moisture infiltrating the lower boundary layer. A mid level ridge stretches over portions of the Yucatan Peninsula, Caribbean, Cuba, Florida, and parts of the Western Atlantic waters. The ridge will slowly shift to the the southeast due to a frontal boundary that will move into northern Florida tonight.
413 AM EST Tue Mar 8 2022 Partly cloudy and mild conditions prevailed along the lower and middle Keys, with temperatures near the middle 70s and southeast winds ranging from 10 to 15. Like yesterday, the KKEY 00Z sounding showed a precipitable water value near the 75th percentile but the inversion has weaken to due low level moisture infiltrating the lower boundary layer. A mid level ridge stretches over portions of the Yucatan Peninsula, Caribbean, Cuba, Florida, and parts of the Western Atlantic waters. The ridge will slowly shift to the the southeast due to a frontal boundary that will move into northern Florida tonight.
601 AM CST Tue Mar 8 2022 High pressure will slowly slide southeast out of the region today with a weak trough pushing through northern Nebraska by late morning. This trough will bring the potential for some light snow to areas mainly along and north of a line from Alliance to Spencer.
Key Messages: - Cold frontal passage later today may bring brief snow showers with little to no accumulations.
Tonight, a cold front will reach southwest Nebraska by 00z and continue to move through the forecast area through the night.
526 AM CST Tue Mar 8 2022 (Today and tonight) Scattered clouds continue to move through the region, which are keeping temperatures in the upper 20s and low 30s in some areas, and temperatures in the low 20s elsewhere. These clear skies and light surface winds will result in low temperatures mainly in the low to mid 20s.
A frontal boundary associated with low pressure tracking across Ontario will drop southward across the CWA this morning. High pressure will nose into the region from the northwest tonight, and will continue to drop southeast to encompass the entire Northern Plains by the end of the day Wednesday. Colder air will accompany the high, with below normal temperatures expected tonight and Wednesday.
(Today and tonight) Currently there is an upper level trough moving east into New Mexico. Ahead of this trough, subtropical moisture is streaming overhead in mid and upper level cloudiness, while at lower levels, moisture is also advecting northward into our area with low clouds developing and moving northward into our southern counties. As the upper level trough moves east, skies are expected to clear slowly from west to east. Tonight, with clear skies, and generally light and variable winds, freezing temperatures are expected area-wide with lows ranging from the mid 20s north of I-20 to near 30 degrees along our southern CWA border. Temperatures may drop into the low/mid 20s in some of our southern valley and low lying locations as well.
403 AM CST Tue Mar 8 2022 A cold front currently poised from southeast North Dakota to western South Dakota will track through the region today. Even though amounts will be light overall, the Highway 20 corridor may not see anything more then a few flurries as mixing ahead of the front will keep low levels dry enough to prevent precip from wet bulbing down to the surface. Highs will hover at or just above freezing for most locations except for northwest Iowa, where the stronger mixing will help highs span into the 40s.
550 AM CST Tue Mar 8 2022 The mean long wave trof position will remain centered through the western U. Backing low level flow to more south-southwesterly through the day in association with retreat of the high will bring slightly warmer temperatures, but also should advect the stratus over the southern CWA back northward. Another cold front will then move across the region on Wednesday. With the exception of northeast MO and west central IL, temperatures should be warmer on Wednesday despite the cold fropa, owing largely to fewer clouds and only weak cold advection.
Yesterday/s cold front passage has left us with seasonably chilly temps in the 30s and widespread post-frontal cloud cover. The low clouds may develop some breaks later this morning and early afternoon, but any peeks of sunshine will be short-lived as the next system approaches from the Lower Ms Valley.
738 AM EST Tue Mar 8 2022 Building high pressure will suppress residual snow flurries and leave dry weather for the region until the approach of another low pressure trough early Wednesday morning. Light snow showers will continue across the region early this morning before high pressure builds.
517 AM CST Tue Mar 8 2022 (Today and tonight) Currently there is an upper level trough moving east into New Mexico. Ahead of this trough, subtropical moisture is streaming overhead in mid and upper level cloudiness, while at lower levels, moisture is also advecting northward into our area with low clouds developing and moving northward into our southern counties. As the upper level trough moves east, skies are expected to clear slowly from west to east. Tonight, with clear skies, and generally light and variable winds, freezing temperatures are expected area-wide with lows ranging from the mid 20s north of I-20 to near 30 degrees along our southern CWA border. Temperatures may drop into the low/mid 20s in some of our southern valley and low lying locations as well.
412 AM EST Tue Mar 8 2022 Building high pressure will cause snow shower activity to wrap up just after dawn today. Light snow showers will continue across the region early this morning before high pressure builds and winds shift from the west. Lingering high pressure will keep the rest of today quiet and dry. Remnants of cold air aloft and near the sfc, from a broad upper-level trough over the Great Lakes, will likely prime the environment for a mix of rain and snow across the Ohio River Valley.
High pressure remains stationary off the West Coast for the next few days, which should bring a similar pattern of warmer afternoon highs and breezy north winds in the afternoons.
Southeast Michigan will hold position within the downstream flank of broader mid latitude troughing through the mid-week period. Lingering low level thermal troughing below 850 mb suggests some degree of maintenance or renewed expansion of stratocumulus today, with the occasional flurry possible as diurnal lapse rates steepen sufficiently. Cloud cover uncertainty as a weak cold frontal boundary then encroaches on the area by late in the day does place a ceiling on prospective highs - readings of low to mid 40s.
414 AM MST Tue Mar 8 2022 Breezy and marginally unstable conditions are expected today as cold air continues to filter south behind yesterday's cold front. High pressure settles briefly over the state on Wednesday with cold but stable conditions.
409 AM CST Tue Mar 8 2022 High pressure will slowly slide southeast out of the region today with a weak trough pushing through northern Nebraska by late morning. This trough will bring the potential for some light snow to areas mainly along and north of a line from Alliance to Spencer.
404 AM CST Tue Mar 8 2022 The mean long wave trof position will remain centered through the western U. Backing low level flow to more south-southwesterly through the day in association with retreat of the high will bring slightly warmer temperatures, but also should advect the stratus over the southern CWA back northward. Another cold front will then move across the region on Wednesday. With the exception of northeast MO and west central IL, temperatures should be warmer on Wednesday despite the cold fropa, owing largely to fewer clouds and only weak cold advection.
A very impactful arctic cold front will move through the area starting today. An upper level low over central Canada is starting to bring very cold air and moisture into our area, mainly our eastern areas. The highest peaks in the Wasatch have a 35% chance to receive more than 18 inches. Wednesday afternoon expect wind chills of around 15 below freezing along the Montana Divide.
Dry, cool and breezy conditions are expected today, with slightly warmer temperatures on Wednesday.
206 PM CST Tue Mar 8 2022 (Issued 205 PM CST Tue Mar 8 2022) Tonight through Wednesday night: Surface/850 cold front slides through later tonight into Wednesday morning.
Ridge axis near to just south of Lake Okeechobee will produce a more S/SW low level flow today that may focus sea breeze collision slightly east of where it occurred yesterday, toward the I-4 corridor near sunset. Unseasonably warm conditions will continue today with highs reaching the low to mid 80s along the coast and mid to upper 80s across the interior.
1101 AM CST Tue Mar 8 2022 A cold front currently poised from southeast North Dakota to western South Dakota will track through the region today. Even though amounts will be light overall, the Highway 20 corridor may not see anything more then a few flurries as mixing ahead of the front will keep low levels dry enough to prevent precip from wet bulbing down to the surface. Highs will hover at or just above freezing for most locations except for northwest Iowa, where the stronger mixing will help highs span into the 40s.
1141 AM CST Tue Mar 8 2022 The mean long wave trof position will remain centered through the western U. Backing low level flow to more south-southwesterly through the day in association with retreat of the high will bring slightly warmer temperatures, but also should advect the stratus over the southern CWA back northward. Another cold front will then move across the region on Wednesday. With the exception of northeast MO and west central IL, temperatures should be warmer on Wednesday despite the cold fropa, owing largely to fewer clouds and only weak cold advection.
We will be experiencing cooler than normal temperatures in the short term across eastern Kentucky, as a cooler air remains in place over the area. After a dry day today, an area of low pressure passing by to our south and southeast will bring widespread rain showers back to eastern Kentucky tonight and Wednesday. Winds should be light and variable today, but should increase slightly out of the north and northwest on Wednesday, as low pressure moves through the region.
130 PM CST Tue Mar 8 2022 Light precipitation has continued to persist along a cold front as it moves east across MN early this afternoon. Most of the precip is snow, though a couple of stations (specifically, LJF) has reported light rain with sub-freezing temperatures at the surface. Lows tonight will be in the lower teens in southern MN to western WI while decreasing into the lower single digits in western MN. But, the likelihood of precip decreases greatly to the south (our CWA) farther away from the trough. Highs are forecast in the lower teens to lower 20s (coldest in western MN). Heading into Wednesday night, a developing low pressure system in the Central Plains will keep clouds across southern MN.
Pattern/Synopsis: A wave sinking into Minnesota is supporting a weak (~1000mb) clipper system that will drag a cold front towards our area very late tonight. Forecast/Details: The clipper treks right along across Ontario tonight, dragging its associated cold front into the western portions of the CWA by daybreak. North of the bridge has better moisture between 925-800mb, thus have better chances there. A moisture starved surface cold front will move across northern Michigan through the day Wednesday.
The region will be between high pressure to the east southeast, and a frontal boundary to the northwest Tonight. The high sinks further to the southeast Wednesday, allowing the frontal boundary to move into SE GA during the afternoon.
1219 PM EST Tue Mar 8 2022 Abundant stratocu remains firmly in place this afternoon over as weak ridging maintains trapped low level moisture between 3-4 kft. Southeast Michigan will hold position within the downstream flank of broader mid latitude troughing through the mid-week period. Lingering low level thermal troughing below 850 mb suggests some degree of maintenance or renewed expansion of stratocumulus today, with the occasional flurry possible as diurnal lapse rates steepen sufficiently. Cloud cover uncertainty as a weak cold frontal boundary then encroaches on the area by late in the day does place a ceiling on prospective highs - readings of low to mid 40s.
---BMickelson Previous discussion: Breezy and marginally unstable conditions are expected today as cold air continues to filter south behind yesterday's cold front. High pressure settles briefly over the state on Wednesday with cold but stable conditions.
Wednesday daytime temperatures will struggle to reach freezing for much of the Northern Rockies outside of the lowest elevations of north central Idaho.
As of this afternoon, the high is centered directly over central Indiana and will continue to progress ENE, leading to dry weather. This low will also bring a chance of precipitation in the far southern portion of the forecast area for the early Wednesday morning hours. The high in place should help to keep most precip to the south of the area, but depending on how the low tracks, may not keep out all the precip. Tonight's low will be in the low to mid 30s followed by highs tomorrow near 50. Modest warm advection and absence of ridging will keep us from warming substantially prior to the arrival of the next trough.
338 PM EST Tue Mar 8 2022 Discussion/Marine - Small chance of snow showers on Wednesday - A cold front will sweep east through the area on Wednesday.
1250 PM EST Tue Mar 8 2022 Another crossing low pressure trough will generate rain and snow for the Upper Ohio Valley Region tonight and Wednesday.
Lee trough will develop by tomorrow afternoon, with south to southeast winds returning, along with warmer temperatures.
The trough moving across tomorrow will be strong enough to increase southerly winds and we can expect a breezy day for most locations. These southerly winds will advect in warm air that will send temperatures warmer with highs reaching near seasonal norms, though lows will remain a little chilly for this time of year.
147 PM EST Tue Mar 8 2022 Surface boundary remains over the area through this week with chances for rain and thunderstorms along with cooler temperatures.
1146 AM CST Tue Mar 8 2022 (Today and tonight) Scattered clouds continue to move through the region, which are keeping temperatures in the upper 20s and low 30s in some areas, and temperatures in the low 20s elsewhere. These clear skies and light surface winds will result in low temperatures mainly in the low to mid 20s.
High pressure will continue across South Florida with breezy southeasterly winds.