Aikyam-Lab/Synoptic-Bench huggingface dataset:
/Tonight through Thursday Night/ Near sunset, a QLCS will be ongoing along a eastward moving cold front, near a line from Lufkin Texas northeast to near El Dorado Arkansas. The strong to severe convection will end late tonight as the cold front moves through the region. Skies will clear from west to east and cooler/drier air will move into the region. Overnight lows will drop back into the low to mid 50s, which is near seasonal normals. However, the aforementioned cold front, which will likely stall just just south of the CWA, will return northward as a warm front late in the day Thursday into Thu Night. Decided to introduce slight chance POPs, as models continue to suggest that some isolated convection could develop along and north of the warm front as it approaches the I-20 corridor of East Texas/North Louisiana Thursday evening.
1258 AM EDT Thu Apr 8 2021 An approaching low pressure system will bring rain showers and isolated storms to the region today. The remainder of the night is expected to be quiet and warm as high pressure shifts east and southerly flow prevails. High pressure is expected to erode away across the Ohio River Valley as a closed low pressure system, currently centered in southern Iowa, tracks northeast.
1245 AM EDT Thu Apr 8 2021 High pressure will retreat offshore today, while a weak cold front stalls to our far west late tonight.
At 700 mb, there was one closed low over eastern KS and another was up over northeast SD. Water vapor loop showed the closed low over northwest MO.
Latest University of Alabama in Huntsville sounding show dry air in the lowest levels, zero CAPE, and low amounts of shear. A weak cold front will move across the Tennessee Valley between 12-18z Thursday morning into early Thursday afternoon. This activity should be more scattered in nature and tied to lift provided directly from the cold front.
431 AM EDT Thu Apr 8 2021 An upper level ridge will pass over Pennsylvania today.
405 AM EDT Thu Apr 8 2021 An approaching low pressure system will bring rain showers and isolated storms to the region today. High pressure is expected to erode away across the Ohio River Valley as a closed low pressure system, currently centered in Iowa, tracks northeast.
high pressure continues to maintain quiet weather for South Florida. High pressure aloft continues over the area through the short term. As the front gets closer, the high will shift a bit south which will allow for increasing southeasterly flow on Thursday compared to today. Temperatures will remain around seasonal averages with upper 70s/lower 80s along the coasts and mid to upper 80s inland for the highs and 60s around the coasts and mid to upper 50s inland. Dry conditions will continue for the end of the week and into the first part of the weekend as a deep layer ridge of high pressure pushes off into the western Atlantic. Highs will rise into the lower to mid 80s across the east coast metro areas to the lower 90s across portions of Glades and Hendry Counties.
223 AM EDT Thu Apr 8 2021 Dry high pressure over the region will move offshore.
Directly under the low, KCAO won't be very gusty. Winds will be slow to diminish tonight with the approach of the next upper level trough.
158 AM EDT Thu Apr 8 2021 Mainly dry and mild conditions expected through Wednesday night before rain showers approach ahead of a cold front to our west early Thursday morning.
The cold front has started to push onshore, with very light showers showing up along the coast and on the fringes of the local radar imagery. This will be a mostly dry cold front, with precipitation chances mainly relegated to the coast, the Umpqua Basin, and the Cascades. The only other effects will be increased clouds, slightly cooler temperatures for Thursday, and breezy winds through tonight. Relatively light winds and seas will continue into Thursday afternoon as a weak cold front moves through the area.
1059 PM CDT Wed Apr 7 2021 BIG PICTURE: upper level, closed low (and fairly stacked) progged to rotate north/northeast out of the southern plains today. A lot of differences in the models' assorted ensemble members, keeping confidence on the low end. As for ceilings, most are VFR except for where it has rained for awhile to saturate the lower boundary layer.
1153 PM CDT Wed Apr 7 2021 The ongoing rain-snow deformation zone operating across wrn and ncntl Nebraska this afternoon will gradually decay as a strong upper low deepens across northeast Missouri this evening.
Temperatures will trend seasonably cooler with periods of rain from late week into the weekend. Upper ridge building over the region should ensure fair weather the rest of the night. A light southeast flow should advect some slightly cooler, maritime air into the area overnight, with readings by dawn ranging from the upper 40s over the northern mountains and eastern edge of the forecast area, to the low 50s most other locations. High pressure building south from New England should ensure fair weather today. The low level southeast flow off of the Atlantic should result in a somewhat cooler day than those recently, with model soundings supporting highs generally between 65-70F.
Temperature should quickly rise this morning to the low 70s by noon before topping off in the mid to upper 70s. Showers and scattered thunderstorms will spread across the area this afternoon as a cold front associated with the upper low to the west rotates up through southeast Michigan.
Trailing cold front will however swing through during late morning/early afternoon. By 12Z Sat, a another cold front will be lingering to our west, and as a secondary closed upper low drops down into the central plains, a SFC wave will spin up along the front and eventually move very close the mid-state Sat morning. Showers and storms will continue moving across the area ahead of a cold front overnight.
301 AM CDT Thu Apr 8 2021 An upper low over NW MO will bring showers to the northern CWA and gusty winds area-wide today. Precip exits the area this evening, leaving tonight dry with lows in the low 40s to low 50s (warmest south).
235 AM CDT Thu Apr 8 2021 Upper low over NW MO will end up over NRN IL by 00 UTC.
344 AM CDT Thu Apr 8 2021 Latest WV satellite imagery has the upper level low centered over west central Missouri.
However with the upper low remaining across Central Missouri today, the clear skies will be short-lived. The clouds will keep temperatures cooler thus expect a wide range in highs across the CWA. Tonight, a pseudo-warm front will begin to move northward across Central Mississippi and may reach extreme southern portions of the CWA by sunrise.
1110 PM EDT Wed Apr 7 2021 Mainly dry and mild conditions expected through Wednesday night before rain showers approach ahead of a cold front to our west early Thursday morning.
1138 PM CDT Wed Apr 7 2021 Tonight-Thursday: One more vorticity lobe will rotate around up upper low early this evening. Temperatures on Thursday will be highest in the west with abundant sunshine and downslope component, to the cooler air lingering in the far east.
Showers and storms will continue moving across the area ahead of a cold front overnight.
147 AM EDT Thu Apr 8 2021 An approaching low pressure system will bring rain showers and isolated storms to the region today. The remainder of the night is expected to be quiet and warm as high pressure shifts east and southerly flow prevails. High pressure is expected to erode away across the Ohio River Valley as a closed low pressure system, currently centered in southern Iowa, tracks northeast.
A cold front making its way through southeast Oregon this evening will cross southwest Idaho tonight. The upper level support arrives on Thursday bringing shower development in the mountains and cooler temperatures and gusty surface winds across the region. A strong cold front over eastern Oregon will move through southwest Idaho overnight and early Thursday morning.
1040 PM MDT Wed Apr 7 2021 The slow-moving upper low over KS continued to foster a band of rain along the deformation zone over south-central SD this afternoon. The upper low will shift eastward this evening, finally bringing an end to the showers. A mild day is in store on Thursday ahead of the next upper trough.
1239 AM EDT Thu Apr 8 2021 Low pressure will exit east of the Maritimes tonight.
123 AM EDT Thu Apr 8 2021 A prolonged period of dry weather with a gradual warming trend will continue through the end of the week as high pressure builds overhead.
A cold front was in the process of making its way through the Ozarks this afternoon. Behind the front only a few lingering showers are expected with cooler temperatures and lingering cloud cover. The upper low will linger over the state and swing another piece of energy around the back side of the low.
Areas east of Tucson will be on the higher end of this range, and a Red Flag Warning is in effect from 1 pm to 8 pm MST. Minimum RH values will continue to be low with most lower elevation locales in the single digits and mountains locales in the low teens.
614 AM MDT Thu Apr 8 2021 The next in a series of troughs is sitting on the doorstep, and will sweep across the state this afternoon and evening. With modest instability aloft and a cold front adding some surface focus, so shower activity can be expected along and just behind the front for the northern third of the state this afternoon and tonight. H5 ridge moves across the state on Friday, with skies clearing. Temperatures will be about 10 degrees cooler than today, but this will only bring temps back to normal for this time of year.
A cold front moving through the region will bring gusty west to northwest winds across central and especially northeastern Nevada today.
558 AM CDT Thu Apr 8 2021 An upper low over NW MO will bring showers to the northern CWA and gusty winds area-wide today. Precip exits the area this evening, leaving tonight dry with lows in the low 40s to low 50s (warmest south).
634 AM CDT Thu Apr 8 2021 (Today and tonight) Breezy southwest to west winds will develop across the area today, along with warmer temperatures. Abundant sunshine, coupled with a strengthening low level thermal ridge, will result in above normal temperatures today.
However with the upper low remaining across Central Missouri today, the clear skies will be short-lived. The clouds will keep temperatures cooler thus expect a wide range in highs across the CWA. Tonight, a pseudo-warm front will begin to move northward across Central Mississippi and may reach extreme southern portions of the CWA by sunrise. The upper flow aloft will be split by Friday morning and an upper trof will begin to eject out of the Southern Plains through the southern branch into the Mid-South by Friday Night.
316 AM PDT Thu Apr 8 2021 Stronger onshore flow will bring stronger and gusty west winds in the mountains and deserts through sunrise and again this evening with high temperatures today a few degrees cooler.
531 AM EDT Thu Apr 8 2021 An upper level ridge will pass over Pennsylvania today.
Tomorrow will be warmer yet as sfc winds shift around to the NW, adding a downsloping component. A cold front is progged to arrive after sunset tomorrow night with gusty NE winds to follow.
403 AM CDT Thu Apr 8 2021 Today will be noticeably cooler as a slow-moving weather system lifts through the region. Light rain continues to linger along the surface cold front this morning, which currently arcs from Des Moines to Effingham to Cape Girardeau. As low-level lapse rates steepen and a weak capping inversion mixes away later this morning, some convective showers should redevelop ahead of the surface cold front as it crosses the I-57 corridor. Temperatures will be noticeably cooler today as the cold front pushes through and the core of the upper-level low moves overhead. Afternoon highs will surge into the lower 70s for locations south of I-72.
With the low so close by, the surface pressure gradient will remain elevated leading to wind gusts up to 35 mph in SD/NE, weakening to 15-25 mph for areas in NW IA and SW MN. Locations near the MO River Valley in south-central SD could see lows drop down into the 30s as skies will be clearing allowing for radiational cooling, while areas under the sky cover will likely remain in the lower 40s. Will likely see some showers east of I-29 as the low continues to wrap up, but that activity will be decreasing into the afternoon hours.
346 AM MDT Thu Apr 8 2021 The upper level trough that moved across the region yesterday has deepened quite impressively with a negative tilt over the central CONUS looking at GOES-16 imagery and cloud cover extending as far west as eastern Nebraska. Looking over the PacNW is the approaching trough that move across the region tonight with the chance for precipitation and cooler temperatures for Friday.
537 AM MDT Thu Apr 8 2021 The upper level trough that moved across the region yesterday has deepened quite impressively with a negative tilt over the central CONUS looking at GOES-16 imagery and cloud cover extending as far west as eastern Nebraska. Looking over the PacNW is the approaching trough that move across the region tonight with the chance for precipitation and cooler temperatures for Friday.
Overall, little changes but some northward nudge in the higher pops. Collar (Issued 355 AM CDT Thu Apr 8 2021) Today through Friday: More rounds of showers are expected today into Friday as low pressure lifts northward through the region. Temps will be 10-15 degrees cooler today due to cooler conditions aloft along with plenty of clouds and the rain chances. Even cooler temps will arrive for Friday, with high temperatures likely back to within a few degrees of normal.
Dry weather and seasonable temperatures are expected through at least Friday due to an upper level ridge persisting over NW California. A Frost Advisory is in effect until 9 AM this morning for temperatures in the low and mid 30s to cover these areas. Otherwise, with the high-pressure ridge building just off the coast, expect mostly clear skies on Friday.
As of 09Z Thursday morning the upper low is lifting north- northeastward across northeast KS/northwest MO. As the upper low progresses northeastward this evening, rain showers will end from southwest to northeast with dry conditions area- wide by midnight tonight.
a short wave trough will pivot across the central Plains during the day. This trough will bring rain chances back to the region for Friday morning and lasting through the evening.
638 AM EDT Thu Apr 8 2021 An upper level ridge will pass over Pennsylvania today.
Still, weak and transient high pressure will allow for marginally lower dew points north of roughly the HWY-190 corridor, and with a lack of any CAA, afternoon temps rise into the low to mid 80s.
High temperatures will trend warmer into the weekend. Foothill temperatures should peak in the 60s with the higher elevation mountain locations being in the upper 40s. Ensemble guidance continues high confidence in upper level ridge building in late this week, leading to warming high temperatures and dry conditions.
Occluded upper low will slowly shift from our CWA to the Upper Mississippi Valley by Friday. The showers and associated cloud cover and CAA will keep temperatures cool today, with highs in the lower to middle 50s.
Some light showers will accompany a weakening cold front along the coast and points eastward to the Cascades this morning, but most should stay to the north of Medford/Ashland. Tonight, high pressure will build in and surface winds will subside. With clearing expected, temperatures are expected to drop to near or below freezing in many areas west of the Cascades. Lows could be in the low to mid 30s along the coast, so frost is possible there as well.
As a low pressure system tracks across the central CONUS and Gulf states the high continues to slowly slide eastward into the western Atlantic. High temperatures today will be in the low to mid 80s for the east coast and mid to upper 80s over the interior.
Above normal temperatures will persist as the Desert Southwest remains under the influence of high pressure with high temperatures in the low to mid 90s across the lower deserts. A strong area of high pressure remains anchored across the Desert Southwest with a very dry atmospheric column. The system passing to the north will not have any effect on surface temperatures, which will once again climb into the low 90s.
High pressure remains over the western Atlantic today, providing excellent boating conditions once again.
Today looks like another great day with fair skies and near average temperatures today then a few degrees warmer Friday.
934 AM EDT Thu Apr 8 2021 Strong high pressure and plenty of subsidence will make for another picture perfect day across South FL. Benign weather for the rest of today with highs in the low-mid 80s along the coast and mid-upper 80s in the interior. As a low pressure system tracks across the central CONUS and Gulf states the high continues to slowly slide eastward into the western Atlantic. High temperatures today will be in the low to mid 80s for the east coast and mid to upper 80s over the interior.
448 AM CDT Thu Apr 8 2021 Upper low over NW MO will end up over NRN IL by 00 UTC.
921 AM EDT Thu Apr 8 2021 High pressure north of the Bahamas continues to ridge over Florida making for another beautiful morning across west central and southwest Florida. A cool morning will warm up nicely under sunny skies topping out in the low to mid 80's once again this afternoon. High pressure near the Bahamas ridging across Florida and into the Gulf of Mexico will produce pleasant weather for boating on the eastern gulf waters for the next couple of days.
Currently, low clouds persist across northeast Oklahoma and into northwest Arkansas on the backside of the upper low centered near Kansas City. These clouds should diminish through the morning as the low pulls farther away from the area, leaving mostly sunny skies areawide during the afternoon. Additional storms will form along the cold front farther north and east, near and south of I-44, as the upper system approaches the area.
Trailing cold front will however swing through during late morning/early afternoon. By 12Z Sat, a another cold front will be lingering to our west, and as a secondary closed upper low drops down into the central plains, a SFC wave will spin up along the front and eventually move very close the mid-state Sat morning. Passage of a cold front will create gusty SSW winds with some gusts over 25KT after 15Z.
High pressure and an amplified mini upper ridge will push temperatures into the 60s in central SD today. The warmer and drier air will lead to min RH falling into the teens this afternoon across north central SD. As the trowal slowly exits Friday afternoon, another upper low will bring a few showers to areas west river. This light precip will slide southeast through the afternoon and keep highs in the west cooler. The period begins with an upper level ridge building into the Northern Plains in response to a Pac NW trough.
Dry weather and seasonable temperatures are expected for the next 7 days due to an upper level ridge persisting over NW California. A Frost Advisory is in effect until 9 AM this morning for temperatures in the low and mid 30s to cover these areas. Otherwise, with the high-pressure ridge building just off the coast, expect mostly clear skies on Friday.
605 AM CDT Thu Apr 8 2021 Today will be noticeably cooler as a slow-moving weather system lifts through the region. Light rain continues to linger along the surface cold front this morning, which currently arcs from Des Moines to Effingham to Cape Girardeau. As low-level lapse rates steepen and a weak capping inversion mixes away later this morning, some convective showers should redevelop ahead of the surface cold front as it crosses the I-57 corridor. Temperatures will be noticeably cooler today as the cold front pushes through and the core of the upper-level low moves overhead. Afternoon highs will surge into the lower 70s for locations south of I-72.
347 AM MDT Thu Apr 8 2021 The next in a series of troughs is sitting on the doorstep, and will sweep across the state this afternoon and evening. With modest instability aloft and a cold front adding some surface focus, so shower activity can be expected along and just behind the front for the northern third of the state this afternoon and tonight. H5 ridge moves across the state on Friday, with skies clearing. Temperatures will be about 10 degrees cooler than today, but this will only bring temps back to normal for this time of year.
High pressure will be the dominant weather feature for the foreseeable future bringing above normal daytime temperatures and typical springtime breezes each afternoon. A trough over the Pacific Northwest will continue to dig southward over the Rockies passing to our north. Weak moisture that has moved in across the area is quickly swept out behind this system with the return of northwest flow and a building ridge. Friday through the weekend, ridging off the Pacific coast will be the main weather maker. Confidence remains low on anything other than periods of gusty winds and cooler temperatures.
The increased cloud cover/precipitation during the afternoon will help to hold temperatures back from the highs over the past couple days, with most locations warming into the 60s. The deeper moisture in place, along with broad forcing associated with the low, will keep increased cloud cover and intermittent showers in place across the area through through much of this time period.
Aloft we remain within the exit region of an upper level trough over Mexico to our southwest. In addition, temperatures are a degree or two warmer this time than yesterday.
High temperatures Friday came in cooler also and the latest guess on snow amounts suggests 1 to 2 inches may accumulate across nrn Sheridan county Friday morning.
353 PM EDT Thu Apr 8 2021 A broad and mature cyclone over the upper Midwest will gradually push moisture to the east into the region tonight.
The boundary will lift north of the area as a warm front Friday.
The trough shifts northeastward overnight, causing the best TROWAL dynamics to move out of the region. Rainfall rates and coverage taper off, with scattered showers remaining possible along and east of I-29 where mid-atmosphere temperatures near the low center remain relatively cool. At the surface, the combination of recent rainfall and temperatures cooling into the low 40s may allow areas of fog, but low status cloud cover may be the more common manifestation of low-level saturation, given light winds keep the surface air somewhat mixed.
Otherwise, skies will be mostly clear with a cold front arriving tomorrow evening.
Low pressure was situated in SE MN this afternoon, with an occluded front extending east-southeast into SE WI. WV imagery showed an upper level low moving into far SE IA. Ther should be a lull in the shower activity late tonight into early Friday, before showers increase again with the arrival of the upper low on Friday. Highs on Friday should reach the lower to middle 50s, except upper 40s near lake Michigan. Rain will be ongoing at the beginning of the extended Friday night, as the first low pressure system continues its northwards trek into Canada.
1255 PM EDT Thu Apr 8 2021 Moisture axis/cold front lifting into southeast Michigan this afternoon should trigger showers and possible embedded thunderstorms, lasting through the evening hours. Temperature should quickly rise this morning to the low 70s by noon before topping off in the mid to upper 70s. Showers and scattered thunderstorms will spread across the area this afternoon as a cold front associated with the upper low to the west rotates up through southeast Michigan. Temperatures Friday will be slightly cooler but still above average in the 60s to low 70s.