Aikyam-Lab/Synoptic-Bench huggingface dataset:
1217 AM CDT Wed Jun 1 2022 (This evening through Wednesday) The effective cold front has finally stalled from around Cheyenne, to Seiling, to Enid, and Ponca City. Tomorrow's threat and location of severe weather will depend on the progression of the cold front.
340 AM CDT Wed Jun 1 2022 (Issued 345 AM CDT Wed Jun 1 2022) Today through Thursday Night: With the front pushing off to the southeast weak high pressure will dominate the region. Throughout the day however this high pressure will weaken though this will keep weather quiet through the day.
At the surface, a cold front continues to move through the forecast area this afternoon and should be through the entire area by 00z this evening Scattered diurnally driven clouds behind this have produced a few light radar echoes but do not believe much, if any precipitation has reached the ground. Most of the measurable precipitation should remain south of I-80 with the highest QPF forecast around 0.
even with the advancing cold front from the northwest. Speaking of cold fronts. With the low likelihood of that happening I left pops low this afternoon.
1052 PM CDT Tue May 31 2022 The upper level low continues to spin along the international border, keeping stratus across the bulk of the region. Could be another chance for light showers on Wednesday as a mid level wave moves across the highway 20 corridor. However, the low to mid levels of the atmosphere are quite dry. If the rain can cool the low levels enough via wetbulbing, then it could reach the surface. Aside from rain chances, Wednesday will be another cool day with highs in the 60s due to cooler 850 mb temperatures around 2 standard deviations below average as per the ensemble situational awareness table. Highs will be a bit warmer up into the 70s.
1215 AM EDT Wed Jun 1 2022 A slow moving cold front will bring a chance of showers and storms to the area tonight into Wednesday. Drier and cooler conditions are expected into the first half of the weekend. Later this evening, a cold front approaches. Low temperatures are expected to fall into the low to mid 60s in the northwest and settle around 70 in the southeast.
The main concern for Thursday morning has been the potential for either fog or frost conditions to develop as skies clear out and winds go light with high pressure moving in at the surface. If moisture can be trapped on the back side of the high pressure area there may still be an area of fog that develops.
Today Through Thursday Night An upper ridge over the eastern third of the country this morning will slowly weaken today and Thursday. An upper trough in the Plains will move into the Midwest tonight. High pressure will build over south Texas. A cold front in southwest Missouri will move into northwest Arkansas this morning and bring an increasing chance of showers and thunderstorms. Highs will be in the lower 80s to lower 90s today and lower 70s to mid 80s Wednesday. Cooler and drier air will move into the state Thursday night. Lows will be in the lower 60s to lower 70s tonight and mid 50s to mid 60s Thursday night.
Winds will begin light this morning with temperatures dipping into the low to mid 30s across portions of the southwest and south central. At the surface, the Northern Plains will be under the influence of high pressure, so there should be fewer clouds.
320 AM CDT Wed Jun 1 2022 Upper-level flow is southwesterly at this time as a ridge is positioned to the east and a trough to the west. An organized line of showers and storms along a cold front are located just northwest of Joplin, MO to Jefferson City, MO with showers stretching further northeast. Models have come into better agreement on keeping the cold front in the southern portions of the CWA tonight, continuing the scattered shower and isolated thunderstorm potential into Thursday morning.
Clouds will stick around tonight along the slow moving trough axis that is extending from East River to Utah. A slow moving ridge across the northern Intermountain West will weaken late this week, as several waves push through.
The nearly stationary cold front is expected to shift into southeastern parts of the CWA this afternoon and exit our area tonight. Parts of western north Texas may rise into the low 90s.
A low pressure trough will begin to move away from the area tonight, allowing temperatures to warm back up to near normal values for the first day of June. Weak amplitude ridging will build in over the West Coast, enabling temperatures to warm up further during the latter half of the week. An area of low pressure over westcentral Utah at 8 pm this evening will be well east of the area by daybreak Wednesday but for tonight, we expect breezy north winds to push south through much of the area overnight. Morning temperatures are expected to be a little bit warmer than they were this morning but still below normal for the first day of June.
235 AM CDT Wed Jun 1 2022 Cooler temperatures are expected for most today except those residing in southeast Illinois who will remain south of the cold front for a majority of the day. Cooler weather will linger into Thursday before a gradual warming trend occurs by the end of the week into the weekend. A cold front is positioned from roughly Pontiac southwestward toward Quincy as of 2 AM. Shear will be decent, especially nearest to the front, though just modest closer to the highest instability. Cooler weather will encompass the area on Thursday with highs looking to peak in the low to middle 70s. High pressure settles into the area for the end of the week into the weekend, keeping thing dry and a little cooler.
255 AM EDT Wed Jun 1 2022 High pressure at the surface and aloft will extend across the region today through tonight.
306 AM CDT Wed Jun 1 2022 There are no major forecast concerns the next few days, but will concentrate mainly on temperatures and timing the highest chances for precipitation. Highs were mostly in the upper 70s and lower 80s, but were cooler in our northern zones. The high at Norfolk was 73, Albion hit 72, Wayne reached 71 and Yankton topped out at 68. High pressure at the surface was centered over WY and northeast CO early this morning, and a frontal boundary was draped from central IL back to southern NM.
/Issued 902 PM EDT Tue May 31 2022/ Fairly pronounced and broad area of high pressure extending from the central Appalachians to the Texas Gulf Coast will dominate our weather over the next 24-36 hours, thus not much in the way of "impact" weather to talk about. Daytime highs on Wednesday could be a few degrees warmer than today as the upr ridge inches south/west across the region.
A cooler airmass with increasingly strong 30 kt easterly 850mb layer winds will spread into western Kansas Tonight, with trajectories leading to a prolonged period of moist upslope flow overnight. Of the NBM components the cooler solutions offer mid to low 40s sound DDC, and probably even low 40s as one heads west through the Ark valley.
There may be a few spots over Corson/Dewey county that could see the mercury slip down into the upper 30s late tonight (surface dewpoints currently between 32F and 40F over that area), but overall, low temperatures should settle down mostly into the low to mid 40s. A strong area of low pressure will continue pushing north-northeast, leaving behind cool and breezy conditions over this CWA. Warmer air will move into the area on Wednesday with 925 mb temps reaching 14C over Aberdeen by 0Z Thursday. On Thursday, an abnormally strong upper level low over central Canada will produce northwesterly flow over the Northern Plains.
A weak cold front will push through the FA tonight into early Thursday, bringing a wider gradient to expected highs on Thursday.
1135 PM CDT Tue May 31 2022 The main low pressure system is over the Northern Plains with a portion stretching back to the Great Basin. A cold front associated with this system has stretched from the Texas Panhandle to along the central Kansas/Oklahoma border into central Missouri. Highlights: 1) Showers and thunderstorms through Wednesday 2) Localized flooding through early Thursday 3) Cooler Change: Modified precipitation chances tonight-Wed Headlines: 1) Severe Thunderstorm Watch until 10PM 2) Flood Watch thru midnight Thursday Showers and thunderstorms are expected through Wednesday. The cold front as mentioned above should be the initial focus for convection this evening with short term models showing storms moving in/expanding in coverage around 5-7PM.
206 AM MDT Wed Jun 1 2022 High pressure will be over the area today and Thursday with dry and warmer weather.
414 AM EDT Wed Jun 1 2022 A cold front will push through the region today with showers and thunderstorms. High pressure finally builds back in at the end of the week and into this weekend. ***Severe thunderstorms possible today*** Ridge of high pressure that has produced hot and mostly dry conditions over the last few days, will flatten out today. Later this afternoon, another short wave and associated surface cold front approaches the region from the northwest. The cold front will become nearly stationary and slowly drift northward back into our region again for Thursday. Clouds and showers are expected through the day on Thursday and high temperatures will run about 10 degrees cooler than today, with most of the area in the low to mid 70s.
As the mid level wave moseys through the region, some folks near/along the Highway 20 corridor could see some sprinkles to light rain showers during the afternoon/early evening as the base of the wave swings through. Thursday looks to be warmer than today as WAA streams overhead, although still within a couple degrees of seasonal norms.
348 AM EDT Wed Jun 1 2022 High pressure across the region through mid-week with above normal temperatures.
212 AM MDT Wed Jun 1 2022 Current surface map places weak high pressure across Montana into the western Dakotas. Flat ridge over the Rockies combined with stalled upper low between Lake Winnipeg and Hudson Bay will result in persistent west-northwest flow across the area through the weekend. With filtered sunshine today, highs will be around 10F warmer than yesterday.
846 PM PDT Tue May 31 2022 A weak ridge over the Southwest will bring warmer weather through midweek, and shrink the marine layer back to coastal areas. The ridge will be displaced by an expanding Pacific trough into the weekend, strengthening the onshore flow and deepening the marine layer for cooler days and more nocturnal low clouds and fog. Moderate onshore sfc pressure gradients persisted to the lower deserts, but have turned weakly offshore from the northern deserts. With the weaker onshore flow and shallow marine layer, it will be noticeably warmer, especially inland where afternoon highs will rise into the 80s and lower 90s. The low deserts should top the century mark. The coastal strip will be moderated by cool sea breezes, but it will still be a few degrees warmer than today.
243 AM CDT Wed Jun 1 2022 An upper ridge will continue to break down over the Mid-South today. Additional development will occur along a cold front that will sink into the Mid-South.
Discussion: Another relatively quiet short term period is expected today and tonight as upper level ridging slowly breaks down. Today will feature mostly dry conditions with upper level ridging still influencing the weather across this Southern Appalachians region. Trended Max T's upward a degree or two from NBM guidance as 925-850mb temperatures are expected to be slightly warmer than yesterday.
Ridging aloft and surface will continue across the southern Appalachians. High pressure continuing to influence the region will bring mostly VFR conditions to the TAF sites with light winds, less than 5 knots, and mostly clear skies. Diegan Chattanooga Airport, TN 91 70 88 65 83 / 10 10 70 30 0 Knoxville McGhee Tyson Airport, TN 89 69 87 63 79 / 10 10 70 50 10 Oak Ridge, TN 88 68 87 62 80 / 10 10 80 50 10 Tri Cities Airport, TN 88 65 85 61 77 / 10 10 70 60 10.
Clearing over the northwest Colorado plateau will allow for good radiational cooling tonight which is expected to yield freezing temperatures for Steamboat Springs, Craig, Meeker and surrounding areas late tonight. A shallow ridge begins to build over the Great Basin on Wednesday, so expect increased sunshine and temperatures moderating, but still peaking several degrees below seasonal norms. This week looks set to end on a warm and dry note as a ridge of high pressure begins to build in on Thursday.
Highs today will be in the low 90s. Highs on Thursday will be in the low to mid 90s in the southeast, with upper 80s to low 90s in the northwest.
321 AM CDT Wed Jun 1 2022 A short wave trough will move into the Central Plains today and will lead to another round of storms this morning.
As such, looks like another warm day on tap under partly cloudy skies with highs reaching into the low to mid 90s across much of the area, with lows dropping into in the upper 60s to low 70s.
We issued a frost advisory for most of the southwest because of light winds, thin high clouds and temperatures in the low to mid 30s. Frost will be possible along with near freezing temperatures in these areas. Localized frost could occur, mainly in the low laying areas in the southwest. Tightly wound stacked low pressure sitting over southwestern Ontario will continue pushing off to the northeast through this evening, while high pressure nudges into the state tonight. The low will then retrograde back to the southwest a bit Wednesday retightening the pressure gradient. Lows tonight will range from the upper 30s to the low 40s.
Additionally, there will be a chance for a passing shower or thunderstorm each day, with the highest chance over Central and Southwest MT.
1248 AM CDT Wed Jun 1 2022 A cold front in southeast Kansas will move into northwest Arkansas this morning. Tonight Through Thursday Night The upper ridge which has provided warm and dry condtions over the last several days will finally flatten out on Wednesday. Kept POPs confined to this part of the state through most of the day Wednesday, along with the denser cloud cover and cooler temps.
203 AM EDT Wed Jun 1 2022 High pressure will keep the area in a very warm airmass into Wednesday, with limited storm chances, if any. A cold front approaches Thursday, with showers and thunderstorms increasing along and ahead of it. Once the front moves to the east, dry and cooler weather will return for the end of the week.
There will be an uptick in convection over the next couple of days as the upper level ridge aloft weakens, and an upper level trough over the northern Rockies digs down into the region, pushing a surface frontal boundary with it into the northern portions of the forecast area on Thursday.
A strong subtropical ridge of a high pressure situated over the southern Appalachians will remain the dominant weather feature over the Deep South on Wednesday. This will change heading into Thursday as a broad upper trough over the northern/central Plains pivots into the Great Lakes, sending a cold front into the Mid South and Ohio/Tennessee Valleys. In wake of the front, a somewhat cooler and drier air mass will push into the region just in time for the weekend. This will result in absolutely beautiful, sunny weather with lower relative humidity values, making for some very comfortable days and cooler nights.
231 AM EDT Wed Jun 1 2022 High pressure will keep the area in a very warm airmass into Wednesday, with limited storm chances, if any. A cold front approaches Thursday, with showers and thunderstorms increasing along and ahead of it. Once the front moves to the east, dry and cooler weather will return for the end of the week.
317 AM CDT Wed Jun 1 2022 Cold front is currently bisecting our area, extending from near UGN southwest to around PIA. Temps today will be cooler, particularly near and downwind of Lake Michigan this afternoon as a healthy lake breeze front pushes inland and sends temps falling into the 60s.
It looks like temperatures aloft may be just a bit warmer, which would help temper any strong/severe storms, if that comes to fruition.
533 AM EDT Wed Jun 1 2022 A cold front will move through the region on Wednesday and hang up to the southeast keeping showers and thunderstorms in the area through Thursday. A cold front will then settle in from the north during the afternoon and evening, bringing shower and thunderstorm chances back to the forecast. Cooler overnight lows will be realized behind the front, especially north of I-80.
519 AM CDT Wed Jun 1 2022 Cooler temperatures are expected for most today except those residing in southeast Illinois who will remain south of the cold front for a majority of the day. Cooler weather will linger into Thursday before a gradual warming trend occurs by the end of the week into the weekend. A cold front is positioned from roughly Pontiac southwestward toward Quincy as of 2 AM. Shear will be decent, especially nearest to the front, though just modest closer to the highest instability. Cooler weather will encompass the area on Thursday with highs looking to peak in the low to middle 70s. High pressure settles into the area for the end of the week into the weekend, keeping thing dry and a little cooler.
933 AM EDT Wed Jun 1 2022 High pressure ridging through the southeast U. Today is the first official day of hurricane season and the NHC is tracking an area of low pressure near the Yucatan Peninsula with an 80 percent chance of tropical development in 5 days. This low will likely bring increasing rain and storms chances for west central and southwest Florida over the weekend. High pressure along the eastern seaboard ridges southeast over Florida and into the Gulf of Mexico. The National Hurricane Center is monitoring an area of low pressure near the Yucatan Peninsula for tropical development. This area of low pressure has a 70 percent chance of development in 48 hours and 80 percent chance in 5 days.
/issued 243 AM CDT Wed Jun 1 2022/ An upper ridge will continue to break down over the Mid-South today. Additional development will occur along a cold front that will sink into the Mid-South.
508 AM PDT Wed Jun 1 2022 High pressure aloft will bring warming today with the warming continuing into Thursday for the deserts.
642 AM EDT Wed Jun 1 2022 A cold front will push through the region today with showers and thunderstorms. High pressure finally builds back in at the end of the week and into this weekend. ***Severe thunderstorms possible today*** Ridge of high pressure that has produced hot and mostly dry conditions over the last few days, will flatten out today. Later this afternoon, another short wave and associated surface cold front approaches the region from the northwest. The cold front will become nearly stationary and slowly drift northward back into our region again for Thursday. Clouds and showers are expected through the day on Thursday and high temperatures will run about 10 degrees cooler than today, with most of the area in the low to mid 70s.
Weak upper level ridging will continue through tomorrow as a mid- level high pressure remains in place across northern Mexico. With a weak short wave rotating around the ridge and PWATs near 1. Warm temperatures will continue through tomorrow with highs ranging from the lower to upper 90s, from east to west.
An upper level ridge over the area will result in warm and dry weather today. Then the ridge strengthens inland while an upper low approaching the PacNW on Thursday, resulting in chances for showers and thunderstorms.
Tonight will be a little cooler with lows in the mid 70s.
A ridge will also begin to build over ID, as well. Temperatures will remain below normal but about 10 degrees warmer. The ridge will remain in place over ID and the Northern Rockies Thursday.
(Today and tonight) The main item of interest the next 24 hours will be a surface cold front that will affect the area, and convective chances associated with the front. Temperatures will be cooler again today, and roughly a few degrees higher than normal for this time of year, with afternoon highs ranging from the lower 90s across the northern Big Country, to the mid 90s elsewhere. Temperatures tonight will also be cooler behind the front, with overnight lows ranging from the lower 60s across the Big Country, to around 70 along the I-10 corridor.
526 AM MDT Wed Jun 1 2022 Current surface map places weak high pressure across Montana into the western Dakotas. Flat ridge over the Rockies combined with stalled upper low between Lake Winnipeg and Hudson Bay will result in persistent west-northwest flow across the area through the weekend. With filtered sunshine today, highs will be around 10F warmer than yesterday.
However, a nice cumulus line did develop just south of the lower Keys this morning at daybreak, and that may be the concern of the day.
High pressure will build over Utah and southwest Wyoming through the end of the work week, resulting in dry and increasingly mild conditions. A slightly cooler and more unsettled pattern will return this weekend.
516 AM EDT Wed Jun 1 2022 An upper level ridge will break down today, allowing a weak cold front to sag across the region this afternoon and remain in the picture through Thursday.
Conditions today are expected to be quiet as the CWA remains under a post-frontal pattern following the strong cold front that swept through on Memorial Day. Since moisture both aloft and near the sfc today will be minimal (near the 1st to 3rd percentile of climatology), precip is unlikely to develop as the trough axis moves through. Another trough is expected to propagate through the CWA on Thursday. A sfc cold front associated with this trough is likely to sweep through, bringing a chance for scattered showers to portions of the area. Expect rain to come to an end Thursday night as the trough moves downstream. For context, normal high temps for early June are in the low to mid 70s for inland locations and in the mid 60s for the Duluth area.
Ridge axis builds over the region through the short term.
Mostly clear skies are being observed on satellite early this morning as upper level ridging builds over California. Ridging will continue the warming trend for interior NorCal with temperatures peaking today and tomorrow in the low to mid 90s across the Valley, 80s in the foothills, and 60s to 70s in the mountains. This will help keep Delta-influenced areas cooler overnight.
537 AM EDT Wed Jun 1 2022 An upper level ridge will break down today, allowing a weak cold front to sag across the region this afternoon and remain in the picture through Thursday.
628 AM EDT Wed Jun 1 2022 An upper level ridge will break down today, allowing a weak cold front to sag across the region this afternoon and remain in the picture through Thursday.
That area is ahead of a cold front and will see highs reach well into the 80s again, but the remainder of central Illinois will mainly reach the 70s with northwest winds. Expect cooler conditions to linger into Thursday, before a gradual warming trend occurs toward the end of the week. Cold front extends roughly from Kankakee to just north of the St. A cold front is positioned from roughly Pontiac southwestward toward Quincy as of 2 AM. Shear will be decent, especially nearest to the front, though just modest closer to the highest instability. Cooler weather will encompass the area on Thursday with highs looking to peak in the low to middle 70s. High pressure settles into the area for the end of the week into the weekend, keeping thing dry and a little cooler.
High pressure will result in seasonably dry conditions, and a return to above normal temperatures.
Expect temperatures to continue to warm into the lower 90s by this afternoon.
The warming trend will continue today as an upper level ridge of high pressure shifts slowly eastward across the west coast ahead of a developing Northeast Pacific low pressure system.