Aikyam-Lab/Synoptic-Bench huggingface dataset:
The much warmer than average temperatures continue as a strong ridge of high pressure further builds over much of Central California. High temperatures today and Monday will likely be similar to those observed yesterday, if not slightly warmer. Overnight lows will also remain rather warm, especially in the lower foothills and in the larger urban areas of the Central Valley.
(The rest of today ) Cold front is currently near a KMLC-KFYV line this morning. Temperatures are some 10 to 20 degrees cooler behind the front this morning than they were this time yesterday.
1051 AM MDT Sun Jun 26 2022 Current surface map places high pressure across eastern Montana into western South Dakota.
348 PM EDT Sun Jun 26 2022 High pressure will move offshore tonight and Monday.
1232 PM CDT Sun Jun 26 2022 (The rest of today ) Cold front is currently near a KMLC-KFYV line this morning. Temperatures are some 10 to 20 degrees cooler behind the front this morning than they were this time yesterday.
A cold front is working across the area ushering in dew points in the 50s while low clouds continue to move east exiting the area. A cooler and drier air mass is working into the area for today and tonight as the storm system which brought our rain continues moving east away from the area. Northwest flow is expected to begin the period before ridging builds in across the middle of the week. Towards the holiday weekend, guidance agrees that another cold front is expected to move into the area.
145 PM MDT Sun Jun 26 2022 Strong high pressure aloft will be the dominant feature over the next 36 hours.
201 PM CDT Sun Jun 26 2022 Thanks to a trough moving through the Great Lakes and eastern Canada, we find ourselves behind a strong summer cold front with the subtropical ridge shifted westward over the West Coast. Some remaining clouds and moisture from immediately behind the front are slowly moving out this afternoon, but we are now solidly into the cooler part of the forecast.
High pressure continues to produce dry weather across the region with light winds. On Monday, the ridge amplifies over the region which will result in warmer temperatures for early to mid week. The amplification of the ridge will also swing some weak monsoonal moisture over the area from Nevada.
Ridging remains centered to our west over the Southern Plains. A trough is extending south from Ontario into the Midwest US, but the southern extent of the trough axis is being challenged by the stubborn ridge to our west. The lower level portion of the ridge will weaken enough to allow the trough to deepen southward into the Tennessee Valley and drive a cold front into northwest AL this evening.
247 PM EDT Sun Jun 26 2022 High pressure will continue to slide offshore tonight.
115 PM EDT Sun Jun 26 2022 Upper air pattern consists of a 500 mb trough in the upper Great Lakes this morning which will pass through the area today. With the trough aloft over the area today, will be a slight chance for some instability showers and kept in the slight chance pops in for this afternoon over most of the area. Troughing behind a cold front persists tonight over the north- central United States. Overnight temperatures could drop into the mid-40s late tonight under the cool 850 mb temps as the low center digs southward. High pressure ridging moves into the western U. A low pressure system moving southeastward through Manitoba and Ontario is expected to drop a front from north to south late Monday night.
However, any linger outflows from dissipating afternoon convection may drive continued isolated thunderstorm chances through around 06Z tonight, especially in southern Mohave County and eastern San Bernardino County where hi-re models show the highest potential for additional outflows early tonight. However, an upper level high continues to move east tonight and will be directly overhead Monday afternoon. High-res short-term forecast reflectivity fields focus mainly on southern Mohave Monday afternoon as storms develop in the higher terrain of western Arizona and move east or southeast. However- if the low level mesoscale dynamics were to win out, we could see scattered convection through much of San Bernardino, Clark, and Mohave counties as well as southern Lincoln County.
Radiational cooling keeps temps cooler than average as well, with lows in the lower to mid 50s. With WAA and southerly flow at low levels returning, expect Monday to be warmer than today, topping out near normal - in the lower to mid 80s.
Guidance is near or just below 50F for most locations across western and north central Nebraska, so feel confident in shaving a few degrees off the lows tonight. Southerly low-level flow increases Monday as the high shifts farther to the east. The cold front that past through the area over the weekend will settle deep into TX and the southeast states later Monday. Temperatures will begin to warm Monday as warmer air advects back north, and highs look to reach the mid and upper 80s area wide.
Winds will be on the increase this week as low pressure develops along the west coast. A building ridge over the west will push high temperatures 5-10 degrees above normal today and Monday.
1251 PM PDT Sun Jun 26 2022 Unsettled conditions will give way to upper ridging and a more stable and dry pattern with warm temperatures. Monsoonal moisture may try and work back into White Pine County mid-week as upper ridge shifts into the four corners region.
1200 PM CDT Sun Jun 26 2022 Overview: Much cooler conditions return to the area today with highs in the mid 70s expected.
240 PM MDT Sun Jun 26 2022 With the exception of an isolated thunderstorm or two across Southwest Montana, Monday will be 5 to 10 degrees warmer across the Northern Rockies beneath sunny to mostly sunny skies.
The main story for the forecast is an approaching cold front Monday. The cold front will result in slightly cooler temperatures on Monday.
Frontal boundary moves across the area Monday morning with cooler air spreading into the region.
247 PM CDT Sun Jun 26 2022 After the much needed rainfall yesterday, a cold front pushed through the area this morning. In this dry and cool airmass with the ridge becoming established overhead, lows tonight in the low to mid 50s away from the Chicago metro will be more typical of May or September than late June.
310 PM EDT Sun Jun 26 2022 A cold front will move east across the Great Lakes and Ohio Valley through tonight. High pressure and a cooler and drier airmass will build into the region through Monday. Showers have developed along the cold front from northwest Ohio down into southeast Indiana. High pressure will build east into the region Monday through Monday night with a drier, cooler airmass settling into the area. Highs on Monday will be in the mid to the upper 70s with lows Monday night in the low to mid 50s.
1254 PM EDT Sun Jun 26 2022 Some isolated showers are possible across northern SC Sunday afternoon, but otherwise dry with highs in the low-mid 90's.
There are a few shallow cumulus bubbling up in low level instability over western Minnesota, however BUFKIT profiles show only about a 2-3kft thick instability layer so anticipate just daytime driven cu and removed the low mention of thundershowers. ECMWF Ens/Clusters indicates at 500mb, a ridge will continue to be positioned over the western parts of the United States with a trough in Canada, this will continue to give the area northwest flow aloft ushering in the cooler air.
1231 PM CDT Sun Jun 26 2022 (Today through Sunday night) A cold front is located across north Texas and is forecast to move into the northern Big Country around sunrise, then the I-20 corridor by late morning, and finally reaching the I-10 corridor this evening.
A temperature gradient has emerged with warmer temps in the east as compared to the west due to a combination of cooler air aloft already having advected into the west as well as longer cloud coverage temporally-speaking. Troughing behind a cold front persists tonight over the north- central United States. Overnight temperatures could drop into the mid-40s late tonight under the cool 850 mb temps as the low center digs southward. High pressure ridging moves into the western U. A low pressure system moving southeastward through Manitoba and Ontario is expected to drop a front from north to south late Monday night.
1217 PM CDT Sun Jun 26 2022 Early morning satellite imagery shows scattered mid-level clouds moving southeastwards from north of the region as the upper level trough continues to swing through, with upper level clouds off to the south. At the surface, temperatures have cooled off nicely into the 50s across the region, likely dropping a couple more degrees into the lower 50s possibly even upper 40s for low-lying areas prior to sunrise. While a bit weaker than yesterday, the wind will be sustained 15 to 20 mph with gusts 20 to 30 mph, though gusts could be closer to 35 mph for those along the Buffalo Ridge due to elevation.
200 PM EDT Sun Jun 26 2022 High pressure will exit further east away from the region today. A cold front will approach from the northwest Monday, and may stall along the coast through the middle of the week. Water vapor satellite showed a broad mid-level ridge centered across the lower MS Valley, a low off the New England Coast, and northwesterly flow aloft across central NC.
/NEW/ /Rest of Today through Monday/ As an upper trough shifts northeast and exits the Great Lakes region, the corresponding surface cold front that generally extends from West Texas and northeastward into the Ohio River Valley continues to advance through North and Central Texas. A cooler night is expected with lows ranging from the upper 60s along the Red River to low 70s elsewhere.
1125 AM EDT Sun Jun 26 2022 An approaching cold front will bring scattered showers and thunderstorms to the area this afternoon and evening. This low will send a cold front into the forecast area this evening and into the overnight hours. As a result, convection will likely develop along and ahead of the approaching cold front as it moves through the area between roughly 21z (5PM EDT) and 06z (2am EDT).
The cold front has made it through all of the FA as of 2 AM except for Stonewall county.
It will be a cooler night with lows in the 40s and 50s. a fairly quiet summer day is on tap for the area as a weak ridge of high pressure builds over the western Great Lakes. A lake breeze could keep locations near Lake Michigan cooler in the afternoon. The Westerlies across the northern continental states will bring cold fronts through Wisconsin every two or three days. So we will have a few cooler than average days and a few above average days.
Temperatures are 5-9 degrees cooler than this time yesterday thanks to this morning's cloud cover. Storms in the lower desert may struggle because of the lack of heating. Upper level flow will be out of the south to southeast as high pressure begins to center over the Great Basin and Four Corners.
1216 PM CDT Sun Jun 26 2022 Key Messages: - Cool, less humid and breezy today - Rebounding temps through mid-week with storm chances Tue/Thur Today: Cool, breezy and less humid A much less humid and cooler Canadian airmass will continue to filter across the region today in the wake of the passing cold front. After a sunny start to the day, diurnal cumulus will increase beneath the mid-level cold pool as an upper trough swings across the Great Lakes, with higher coverage to the north. An isolated shower could not be completely ruled out across northern WI this afternoon closer to the upper trough/coldest mid-level temps. Cool overnight lows generally in the low 50s are on tap for tonight with a few locations in central/north-central WI falling into the low to mid 40s.
A seasonably cool night on tap with temperatures in the low-50s over the plains, and in the 40s over the Black Hills. Upper level ridge builds over the western in the beginning half of the upcoming week.
BW Chattanooga Airport, TN 72 86 66 82 68 / 60 40 10 30 10 Knoxville McGhee Tyson Airport, TN 71 83 62 84 65 / 70 40 10 10 10 Oak Ridge, TN 70 84 61 84 64 / 70 30 0 10 10 Tri Cities Airport, TN 67 81 55 82 61 / 80 50 10 10 10.
207 PM EDT Sun Jun 26 2022 A cold front will approach the region from the northwest tonight and then slowly cross the area Monday through Monday night.
1138 AM PDT Sun Jun 26 2022 High pressure will bring warm and dry weather to the Inland Northwest for the next few days.
238 PM MDT Sun Jun 26 2022 Ridging has nudged in warmer temperatures today, most notably east of the Divide where highs will peak 5 to 10 degrees warmer than yesterday. The ridge will strengthen on Monday and temperatures will return to above normal, generally in the 80s across lower elevations. Even with the building ridge, a few isolated showers and thunderstorms could form over the mountains, as well as across southern Wyoming. On that note, elevated fire weather conditions will return with relative humidity values dropping into the low to mid teens and a slightly increased wind.
112 PM EDT Sun Jun 26 2022 High pressure will move offshore tonight and Monday.
1255 PM EDT Sun Jun 26 2022 Remaining MVFR to lower VFR stratus/strato-cu will mix out as drier westerly flow in the wake of passing cold front works through the region. This will effectively end precipitation potential for the remainder of the day despite the surface extension of cold front tracking through MBS around 18Z, northwestern Metro Detroit around 21Z and through the remainder of the cwa by 00Z this evening. May raise highs a degree or two as deeper mixing this afternoon/lowering dewpoints should allow temperatures to warm compressionally right in advance of the cold front.
Cloud cover east of NW Alabama and overall less robust moisture convergence should keep heat index values in the lower 90s to around 100 degrees at best.
This pattern has pushed not only cooler temperatures into the area but a much drier boundary layer across central and southwest KS this afternoon. This mid/upper moisture in combination with the right entrance region of the jet streak on the front side of the trough, is triggering weak convective showers. The main upper trough axis then slides southeast into the Southern Plains as an upper ridge begins to amplify over the Intermountain West.
(This afternoon through Monday night) Upper ridge centered over TX today will shift west becoming centered over NV Monday as an upper trough moves across the NE US.
(Tonight through Monday night) A long string of well above normal high temperatures will come to an end as a cold front sags south across South Central Texas overnight into Monday.
Showers and thunderstorms have developed along the weak boundaries in our nearshore and offshore waters, and the Lower Keys. High resolution models have the activity persisting through early this evening across the Lower Keys and Gulf waters.
The forecast remains on track this afternoon as upper level ridging continues to shift westward over the south central Plains. Meanwhile, a weakness on the southeastern periphery of this ridge is gradually moving over portions of Louisiana and Mississippi this afternoon. Cloud cover is expected to linger into the overnight hours which will allow lows to cool into the lower mid 70s with upper 70s at the beaches.
1233 PM EDT Sun Jun 26 2022 High pressure centered off the Mid Atlantic coast will provide a dry weekend with seasonably warm temperatures.
751 PM EDT Sun Jun 26 2022 A cold front over the Great Lakes will push southeast across the region tonight into early Monday, then high pressure will build into the area.
/issued 315 PM CDT Sun Jun 26 2022/ Early afternoon temperatures are all over the place across the Midsouth ranging from 98 degrees with a heat index of 107 at Tupelo to the lower 70s where rain has recently cooled the air. Numerous showers and thunderstorms continue across the Midsouth as a cold front slowly moves across the area. Cooler air will filter in across the remainder of the Midsouth tonight.
Isolated shower and virga activity will continue to taper off across southeast Oregon this evening as an upper low continues to deepen offshore. Warmer air will continue to be advected into the region as the weather system inches towards the coast, allowing temperatures to increase another 5 to 10 degrees tomorrow.
935 PM CDT Sun Jun 26 2022 Cold front has moved through the Mid-South and the associated showers and thunderstorms have moves SE of the region. /issued 315 PM CDT Sun Jun 26 2022/ Early afternoon temperatures are all over the place across the Midsouth ranging from 98 degrees with a heat index of 107 at Tupelo to the lower 70s where rain has recently cooled the air. Numerous showers and thunderstorms continue across the Midsouth as a cold front slowly moves across the area. Cooler air will filter in across the remainder of the Midsouth tonight.
940 PM EDT Sun Jun 26 2022 High pressure will continue to slide offshore tonight.
806 PM CDT Sun Jun 26 2022 Updated suite of forecast products as surface summertime cold front continue pushing slowly southward across mid state region. Convection continuing to be noted around and in front of this surface cold front across southern portions of our area.
/NF/ Through tomorrow: A pattern change is finally in store for the region as pesky upper ridging continues to gradually retrograde west into the Southern Plains. This is occurring as a potent northern stream trough swings through the Great Lakes region into New England. A surface cold front current over northern Arkansas will drop into the Delta tonight and into the I-20 corridor by tomorrow evening. For tomorrow, showers and thunderstorms are expected to redevelop along and ahead of the surface cold front. High temperatures will be much cooler with mid 80s behind the front across the Delta and northern Mississippi with low to mid 90s across the far southeast/Pine Belt.
456 PM MDT Sun Jun 26 2022 Ridging has nudged in warmer temperatures today, most notably east of the Divide where highs will peak 5 to 10 degrees warmer than yesterday. The ridge will strengthen on Monday and temperatures will return to above normal, generally in the 80s across lower elevations. Even with the building ridge, a few isolated showers and thunderstorms could form over the mountains, as well as across southern Wyoming. On that note, elevated fire weather conditions will return with relative humidity values dropping into the low to mid teens and a slightly increased wind.
638 PM CDT Sun Jun 26 2022 (This evening through Monday) Late this afternoon, a cold front was moving southward through western and central Texas. Temperatures immediately behind the front were about the same as ahead (roughly in the mid 90s), but cooler conditions existed further north across the Panhandle and Oklahoma. This should be aided by weaknesses in the upper-level ridge as it begins to break down. Tomorrow the slightly cooler, but also more humid, airmass will have filtered into the area. As the ridge continues to weaken, this will enhance any storms that develop.
554 PM EDT Sun Jun 26 2022 High pressure will move offshore tonight and Monday.
1015 PM EDT Sun Jun 26 2022 A cold front will move east across the Great Lakes and Ohio Valley overnight. High pressure and a cooler and drier airmass will build into the region through Monday. Mid level trof to settle into the Great Lakes overnight into Monday. Scattered showers and embedded thunderstorms developed this afternoon in the moderate instability in the warm airmass ahead of the associated surface cold front. High pressure will build east into the region Monday through Monday night with a drier, cooler airmass settling into the area. Highs on Monday will be in the mid to the upper 70s with lows Monday night in the low to mid 50s.
(Tonight) The cold front will move across the Tennessee Valley this evening into the overnight hours. The main upper level trough is well to the north across the Great Lakes and will lift out to the northeast during the overnight hours.
1030 PM EDT Sun Jun 26 2022 Lingering showers and storms lifting NW along an inverted trough axis across central FL.
520 PM EDT Sun Jun 26 2022 An approaching cold front will bring scattered showers and thunderstorms to the area through this evening. The initial broken line of storms, associated with a prefrontal trough, is currently in the vicinity of the northern WV panhandle.
825 PM EDT Sun Jun 26 2022 A cold front will approach the area from the northwest tonight into Monday, then move across the region Monday afternoon into Monday night.
840 PM EDT Sun Jun 26 2022 Showers and storms will end tonight with the passage of a cold front.
This low cloud cover combined with CAA has kept the surface temperatures in the 60s where sunshine has not bumped the temperatures north of 70 degrees. Areas near the SD/NE border, and west of the Laramie Range have seen sunshine longer today, resulting in warmer temperatures from the low to upper 70s.
A temperature gradient has emerged with warmer temps in the east as compared to the west due to a combination of cooler air aloft already having advected into the west as well as longer cloud coverage temporally-speaking. Overall, this should translate to slightly below normal high temps gradually warming through the week, with a couple cooler than normal lows becoming near to just above normal. This ridge of high pressure will stick around Monday and provide the region with a mostly clear start of the work week. A cooler airmass building in behind today's cold front will stick around tonight and Monday, supporting lows in the 40s across most of the region.
645 PM EDT Sun Jun 26 2022 High pressure will continue to slide offshore tonight.
The highest coverage of rain and storms after mid-week may shift to areas west of I-17 and the U.
922 PM CDT Sun Jun 26 2022 (Issued 912 PM CDT Sun Jun 26 2022) With the exception of a few sites along the lake, winds have diminished and will become very light overnight as high pressure begins to build into the region for the start of the work week.
815 PM EDT Sun Jun 26 2022 A cold front will move east across the Great Lakes and Ohio Valley through tonight. High pressure and a cooler and drier airmass will build into the region through Monday. Showers have developed along the cold front from northwest Ohio down into southeast Indiana. High pressure will build east into the region Monday through Monday night with a drier, cooler airmass settling into the area. Highs on Monday will be in the mid to the upper 70s with lows Monday night in the low to mid 50s.
1057 PM EDT Sun Jun 26 2022 A cold front over the Great Lakes will push southeast across the region tonight into early Monday, then high pressure will build into the area.
625 PM CDT Sun Jun 26 2022 After the much needed rainfall yesterday, a cold front pushed through the area this morning. In this dry and cool airmass with the ridge becoming established overhead, lows tonight in the low to mid 50s away from the Chicago metro will be more typical of May or September than late June.
705 PM EDT Sun Jun 26 2022 A cold front over the Great Lakes will push southeast across the region tonight into early Monday, then high pressure will build into the area.
505 PM MDT Sun Jun 26 2022 UPDATED AVIATION SECTION With the exception of an isolated thunderstorm or two across Southwest Montana, Monday will be 5 to 10 degrees warmer across the Northern Rockies beneath sunny to mostly sunny skies.
The low level winds will however sustain WNW winds at or above 10 knots through the night, with a slight post sunrise increase expected by 14Z Monday.
900 PM EDT Sun Jun 26 2022 High pressure will move offshore tonight and Monday.
952 PM EDT Sun Jun 26 2022 A cold front will approach the area from the northwest tonight into Monday, then move across the region Monday afternoon into Monday night.
A high pressure ridge slowly moving east toward Montana will keep the area under a dry northwesterly flow aloft, which will keep skies clear overnight with light winds. -Coulston With the exception of an isolated thunderstorm or two across Southwest Montana, Monday will be 5 to 10 degrees warmer across the Northern Rockies beneath sunny to mostly sunny skies.