Aikyam-Lab/Synoptic-Bench huggingface dataset:
- Warmer weather expected on Tuesday. Temperatures will only be in the low to mid 80s as a result this afternoon. The upper ridge will weaken and quickly shift eastward, and a cutoff low across the southern High Plains will gradually lift northward and will likely be the catalyst for the region's next storm chances toward the middle of the week.
500Hpa ridge building across wrn CONUS. Upper low will continue to drift SE into the Great Lakes region, keeping broad cyclonic flow pattern over the region through Monday.
329 AM EDT Mon Jun 9 2025 - Upper Low Spawns Afternoon Showers - Increasing Confidence in Rain/Convection Late Week - Upper Low Spawns Afternoon Showers The core region of the upper low moves in this afternoon and steepening lapse rates combine with deep moisture to bring a diurnal enhancement of showers and thunderstorms from mid afternoon into the evening. Showers diminish after sunset with a lesser chance of diurnal enhancement on Tuesday as the upper low moves out.
(Today through Tuesday) Upper ridging off the Atlantic Coast and along the Pacific Coast.
Broad low pressure was located over northwestern Ontario this afternoon with a cold front stretching across eastern Wisconsin into western Illinois and southwestward into the Plains. A trough of low pressure was analyzed over central Minnesota. Daytime heating and cool air aloft behind the cold front was leading to scattered showers and isolated thunderstorms across northern Minnesota and northern Wisconsin. As an upper low moves through the region on Monday, another day of diurnally driven showers and isolated thunderstorms is expected across the region. A bit of a messy forecast is in store tonight as a broad closed low continues to spin about the region.
With cooler and more moist air aloft moving overhead, no fire weather hazards are expected today through Tuesday. That being said, we could see some diurnal heating create some elevated energy in the lower to mid atmosphere over U. This sends a cold front SE across the UP Tue night into Wed, potentially bringing some -shra with it. Mainly dry for the remainder of Wed in the wake of the cold front. High pressure then increases over N Ontario Thu/Fri keeping Thu/Thu night dry.
(Today and tonight) Upper level ridging across the Pacific Northwest is just beginning to erode, with a cutoff low that had been meandering off California now basically absorbed into the synoptic-scale flow across the western United States. High temperatures remain in the upper 70s to middle 80s inland, with the warmest spots reaching temperatures near 100, while the coastal regions continue to be cool with highs in the upper 50s to middle 60s, barring warmer spots near Santa Cruz and the Big Sur coast where temperatures reach the middle 70s.
Temperatures will be cooler on Monday with highs in the upper 60s to mid 70s. - A warming trend begins on Tuesday with temperatures in the lower to mid 80s through the remainder of the period.
323 AM EDT Mon Jun 9 2025 Unsettled weather will be the main concern for today as a cold front will cross the area today and bring the potential for severe weather and flooding today and tonight. Expect high pressure and quiet weather by midweek. The 500MB closed low will swing the trough axis through IL/IN region by 16Z to 18Z. ---------------------------------------------------------------- By tonight, the upper trough finally advances eastward across the Ohio Valley and northeast of the area by Tuesday evening.
243 AM CDT Mon Jun 9 2025 - Cooler with low humidity behind the front into Tuesday.
(Tonight through Tuesday night) The subtropical ridge will continue to weaken through the short term as an upper level trough traverses the Midwest. This pattern will help drive a weak cold front south tonight with the front stalling over Central Texas Monday. Hot temperatures are expected again Monday afternoon, with highs likely reaching the low triple digits across most of Deep South Texas.
High pressure surface and aloft remains over the forecast area.
Highs Monday will be in the low 90s with heat index values in the low 100s.
Highs will be in the lower 90s with overnight lows in the 70s.
Current WV and IR satellite imagery shows upper low centered over northern MN/WI. Canadian wildfire smoke is being pulled into the region as northwest flow sets up over the region ahead of a building western US ridge. Upper level ridge will build into the region today as the upper low shifts to the east. H850 temps will warm to around 25C by tomorrow afternoon as low level south-southwesterly flow facilitates development of low level thermal ridge over the region. Downsloping could support temperatures in the low to mid 90s over the western SD plains east of the Black Hills (70-90+% probs per HREF).
There are still storm chances as this feature pushes through, but the higher chances will be in the southern TAFs.
358 AM EDT Mon Jun 9 2025 A cold front will move across the region early on Tuesday.
Still under the influence of the departing area of high pressure, winds have been light throughout the day. A broken line of showers and storms along a cold front moving across eastern Wisconsin is progged to continue to move east towards the area later this evening and into the overnight hours. By Monday morning, the cold front exits east of the area. The focus then turns to Monday afternoon and evening as the main upper-level low ushers in cooler air aloft and increased chances for widely scattered showers and a few storms Monday.
Updated at 243 AM CDT Mon Jun 9 2025 - Cooler today with chances for thunderstorms this evening and overnight, some severe.
Unsettled weather will continue this period with a front lingering to the west and and upper trough remaining to the west. Lows tonight will fall to the low to mid 70s with highs Monday invof 90 away from the beaches. A cold front will approach from the west during the period while an upper trough affects the area. Mainly afternoon and evening showers and storms are possible during this period will lows in the low to mid 70s Monday night and upper 60s to lower 70s Tuesday night.
- High temperatures will be near or a little below normal through midweek, with warmer readings arriving for late week.
Temperatures will be cooler with highs in the upper 60s to mid 70s.
Conditions remain muggy early this morning with temperatures in the lower 80s and dew points in the mid 70s. A broad high pressure sitting across the central North Atlantic will help to advect better moisture into the region.
1240 AM CDT Mon Jun 9 2025 - Cold front has already moved through east-central KS, limiting the main severe weather risk. - Cooler with low humidity behind the front into Tuesday.
307 AM EDT Mon Jun 9 2025 - Unsettled and cooler today and Tuesday. Behind the low's frontal passage, cooler air and cyclonic flow dominate as the upper- level low settles directly overhead the Great Lakes.
After a break in the precipitation for most of the region overnight, showers are set to return to the region in the morning hours as an upper low crosses over the area.
- Summer-like temperatures are expected beginning Tuesday, with highs ranging from the mid-80s to the low 90s each day. Dry conditions are expected to persist through mid-week, with an upper ridge moving across the High Plains and Dakotas.
1247 AM CDT Mon Jun 9 2025 (Tonight through Tuesday night) The subtropical ridge will continue to weaken through the short term as an upper level trough traverses the Midwest. This pattern will help drive a weak cold front south tonight with the front stalling over Central Texas Monday. Hot temperatures are expected again Monday afternoon, with highs likely reaching the low triple digits across most of Deep South Texas.
between a pronounced upper level ridge over the Intermountain West and a pronounced upper level trough over the Mississippi River Valley. with highs in the lower 80s. as the aforementioned ridge flattens and shifts eastward across the Rockies (Mon night) and Central Plains (Tue-Tue night). trapped /nearly cut-off/ beneath the ridge.
Temperatures are expected to reach the low 90s by late week towards the weekend.
A noticeably warmer afternoon will result, with most locations within a few degrees of 90 at peak heating Tuesday afternoon.
- Temperatures warm above normal for Tuesday with widespread 80s and low 90s for daytime highs before slightly cooler conditions move right back in for the latter half of the week as a series of disturbances increase chances for showers and thunderstorms. An upper low finally begins to pull off into the Great Lakes today, but clouds circulating down the backside will remain over eastern SD and west central MN for much of the day. The clouds will also help keep temperatures cooler in the upper trough. Upper ridging builds in tonight and Tuesday with a drier air mass.
The next big wave of likely unhealthy smoke will arrive early Tuesday morning behind a cold front. WEATHER PATTERN OVERVIEW: Sunny, yet hazy skies prevail across our region as the deep low pressure system over Manitoba continues to move eastward. The far western extent of that large low pressure system has kept low clouds and rainfall over North Dakota, but this far west, only a few low-level clouds remain over the far NE corner of Montana. By Monday, the flow pattern aloft become more zonal (from the west) and will allow warmer and drier weather to persist, although without the recent gusty winds. Tuesday evening and beyond, region-wide conditions set up for organized summertime thunderstorms, with higher humidity from the south/southeast and troughing/SW flow moving in from the PAC NW.
1246 AM MDT Mon Jun 9 2025 - Scattered showers and thunderstorms mainly over the higher terrain and Palmer Divide this evening.
736 AM EDT Mon Jun 9 2025 Unsettled weather will be the main concern for today as a cold front will cross the area today and bring the potential for severe weather and flooding today and tonight. Expect high pressure and quiet weather by midweek. The 500MB closed low will swing the trough axis through IL/IN region by 16Z to 18Z. ---------------------------------------------------------------- By tonight, the upper trough finally advances eastward across the Ohio Valley and northeast of the area by Tuesday evening.
717 AM EDT Mon Jun 9 2025 - Upper Low Spawns Afternoon Showers - Increasing Confidence in Rain/Convection Late Week - Upper Low Spawns Afternoon Showers The core region of the upper low moves in this afternoon and steepening lapse rates combine with deep moisture to bring a diurnal enhancement of showers and thunderstorms from mid afternoon into the evening. Showers diminish after sunset with a lesser chance of diurnal enhancement on Tuesday as the upper low moves out.
610 AM CDT Mon Jun 9 2025 (Tonight through Tuesday night) The subtropical ridge will continue to weaken through the short term as an upper level trough traverses the Midwest. This pattern will help drive a weak cold front south tonight with the front stalling over Central Texas Monday. Hot temperatures are expected again Monday afternoon, with highs likely reaching the low triple digits across most of Deep South Texas.
635 AM CDT Mon Jun 9 2025 - Cooler with low humidity behind the front into Tuesday.
- At to slightly above seasonal temperatures through the end of the work week, with continued daily chances for afternoon showers and storms, mainly over and near the higher terrain. Weak northwest flow remains in place over our region today, as a disorganized area of broad low pressure drifts down towards New Mexico. All in all, expecting storms to form over the higher terrain in the early afternoon, before slowly moving east and south.
The next big wave of likely unhealthy smoke will arrive early Tuesday morning behind a cold front. WEATHER PATTERN OVERVIEW: Sunny, yet hazy skies prevail across our region as the deep low pressure system over the upper Great Lakes continues to move eastward and the flow pattern aloft become more zonal (from the west). This will allow warmer and drier weather to persist, although without the recent gusty winds. Tuesday evening and beyond, region-wide conditions set up for organized summertime thunderstorms, with higher humidity from the south/southeast and troughing/southwest flow moving in from the Pacific Northwest.
For tomorrow, favorable areas for convection will slide southeast along with the trough amplification into eastern and southeastern Arizona and moreso into southern New Mexico, but still remain east of Gila County.
June Gloom continues through the next several days as a weak upper low pressure system continues to move eastward through the area and into Arizona today and Tuesday. As the upper low moves east, a weak ridge will nudge in behind and over the region. High temperatures at the coasts will be in the 60s to 70s (within a few degrees of normal), while warmer valleys will reach into the 80s and 90s (6 to 10 degrees above normal), while the Antelope Valley will be around 100 degrees (up to 10-12 degrees above normal).
537 AM CDT Mon Jun 9 2025 - Cooler than normal temperatures today with breezy northwesterly winds. - Warmer temperatures return tomorrow (mid 80s), but low humidity will keep conditions relatively comfortable.
411 AM CDT Mon Jun 9 2025 - Cooler than normal temperatures today with breezy northwesterly winds. - Warmer temperatures return tomorrow (mid 80s), but low humidity will keep conditions relatively comfortable.
552 AM CDT Mon Jun 9 2025 Updated at 550 AM CDT Mon Jun 9 2025 - Mainly dry and a bit cooler early this week. (Today and tonight) Cooler and somewhat drier air will filter south in the wake of last nights MCS and a weak cold front that will push south through the area this morning. This will result in a quieter day with slightly cooler temperatures across Oklahoma and north Texas. There is an outside chance for a storm or two this afternoon across western north Texas with perhaps a better chance during the evening hours as convection develop across the High Plains of New Mexico and then propagates southeast toward western north Texas.
A broad high pressure in the central North Atlantic will continue to push moisture into our area resulting in rain chances gradually increasing tonight into tomorrow. From synopsis, a broad high pressure moving into the central North Atlantic will encourage gentle to moderate east to southeast breezes, with the potential for moderate to fresh breezes towards late week.
This afternoon, a cold front will ignite showers and thunderstorms to our northwest in TN into northern MS.
543 AM MDT Mon Jun 9 2025 - Scattered showers and thunderstorms mainly over the higher terrain and Palmer Divide this evening.
634 AM CDT Mon Jun 9 2025 Updated at 630 AM CDT Mon Jun 9 2025 - Cooler today with chances for thunderstorms this evening and overnight, some severe.
630 AM EDT Mon Jun 9 2025 - Unsettled and cooler today and Tuesday. Behind the low's frontal passage, cooler air and cyclonic flow dominate as the upper- level low settles directly overhead the Great Lakes.
* Summer-like heat continues through midweek before cooler temperatures arrive late this week.
319 PM EDT Mon Jun 9 2025 Showers and thunderstorms are expected through this evening as a cold front crosses the area.
301 PM EDT Mon Jun 9 2025 Showers and thunderstorms are expected through this evening as a cold front crosses the area.
1214 PM EDT Mon Jun 9 2025 Showers and thunderstorms possible today during cold frontal passage.
131 PM EDT Mon Jun 9 2025 Showers and thunderstorms possible today during cold frontal passage.
1146 AM CDT Mon Jun 9 2025 (Tonight through Tuesday night) The subtropical ridge will continue to weaken through the short term as an upper level trough traverses the Midwest. This pattern will help drive a weak cold front south tonight with the front stalling over Central Texas Monday. Hot temperatures are expected again Monday afternoon, with highs likely reaching the low triple digits across most of Deep South Texas.
Near to slightly above normal temperatures are expected on Tuesday with highs generally in the low to mid 90s.
1148 AM MDT Mon Jun 9 2025 - Unseasonably warm temperatures will continue for the next 7 days, with highs consistently from the upper 70s into the 80s in the lower elevations. Temperatures are expected to reach the low 90s in parts of the Bighorn Basin over the weekend.
Showers and thunderstorms will be possible this afternoon and into the early evening hours, especially over the higher terrain. For most, little, if any, precipitation is expected, but a couple brief downpours isn't totally out of the question over the higher terrain.
The short term will feature flat ridging. Tuesday morning, high pressure to our north will bring winds out of the northeast bringing more surface smoke into Montana. A few strong to severe storms will be possible at times as well with the higher dew points and good daytime heating/instability.
Lows are forecast in the lower to mid-70s. The ridge axis will begin to drift northward through central Florida on Tuesday, aiding increasing encroachment of the east coast sea breeze into the interior. Hot temperatures are forecast once again, with highs reaching the lower to mid-90s and heat indices up to 100-104 degrees.
- Cooler than normal temperatures today with breezy northwesterly winds. - Warmer temperatures return tomorrow (mid 80s), but low humidity will keep conditions relatively comfortable.
1038 AM MDT Mon Jun 9 2025 - Unseasonably warm temperatures will continue for the next 7 days, with highs consistently from the upper 70s into the 80s in the lower elevations. Temperatures are expected to reach the low 90s in parts of the Bighorn Basin over the weekend.
Lows tonight again above normal in the lower to mid 70s given the clouds and light southwest flow.
For tomorrow, favorable areas for convection will slide southeast along with the trough amplification into eastern and southeastern Arizona and more so into southern New Mexico, but still remain east of Gila County.
Weak upper ridging continues through Tuesday, combined with low surface dew points, which will continue the dry conditions.
- Warmer with some sunshine mid-week. - Late-week rain is possible with cooler temperatures, then warming up again over the weekend. Deep stacked low pressure over the Upper Great Lakes today pulls eastward tonight with two additional vorticity lobes rotating through it. A weak warm front will also pull a nose of warmer low- level air into the region Tuesday afternoon.
A broad high pressure in the central North Atlantic will continue to push moisture into our area resulting in rain chances gradually increasing tonight into tomorrow. A broad high pressure sitting across the central North Atlantic will help to advect better moisture into the region.
Dry, breezy, and slightly cooler conditions expected in the second half of the week. Highs today will be a few degrees warmer than yesterday, with another increase on Tuesday. These will be driven by residual mid-level moisture and mountain circulations, thus convection should largely be tied to the higher terrain.
238 PM CDT Mon Jun 9 2025 Tonight: The cold front will continue to migrate southward tonight, providing potential re-development of shower/t-storm during the early evening across southern MS.
Showers and thunderstorms will be possible this afternoon and into the early evening hours, especially over the higher terrain. Showers and thunderstorms have already begun to develop early this afternoon over the higher terrain. Coverage is expected to increase through the remainder of the afternoon over the higher terrain, then gradually move eastward off the terrain and potentially into the lower elevations. Soundings show a a very dry sub-cloud layer across northern Arizona, thus little to no precipitation is expected with this activity, especially across the lower elevations. In the high terrain, a brief downpour in any stronger storm isn't totally out of the question, but isn't overwhelmingly likely.
Issued by National Weather Service Springfield MO 146 PM CDT Mon Jun 9 2025 - Drier and slightly cooler weather the next few days with highs slightly below average.
Expect gradual warming through midweek with Moderate Heat Risk for much of the lower elevations. A ridge of high pressure is building off the coast, per latest satellite imagery. This ridge will slowly work its way near the coast and will allow for gradual warming the next couple of days.
Issued by National Weather Service Detroit/Pontiac MI 216 PM EDT Mon Jun 9 2025 - Unsettled and cooler today and Tuesday. Behind the low's frontal passage, cooler air and cyclonic flow dominate as the upper- level low settles directly overhead the Great Lakes.
Afternoon highs are expected to range from the lower 80s in the north to near 90 degrees in southeast. Please see the previous forecast discussion down below for more information: Global guidance continues to show a cold front shifting southward and stalling across the southeastern CONUS heading into Tuesday.
(This evening through Tuesday Night) Though temperatures have recovered this afternoon, albeit somewhat cooler when compared to recent days, advertised hi-res showers and thunderstorms have struggled to materialize as a surface boundary near I-30 remains stalled. Best opportunity for convective coverage will be across the southern zones and south of the FA through the late afternoon and evening, co-located within the highest diurnally driven instability gradient. Guidance continues to highlight a corridor for the highest PoPs along I-20 and south, with highs in the mid to upper 80's, and low 90's.
This round of showers/storms will exit by midnight, but additional showers/storms are possible overnight, associated with the 850 mb trough and frontal zone.
144 PM MDT Mon Jun 9 2025 KEY MESSAGES: - High pressure will bring near-record daytime high temperatures today and Tuesday.
1234 PM CDT Mon Jun 9 2025 Updated at 1217 PM CDT Mon Jun 9 2025 - Mainly dry and a bit cooler early this week. (Today and tonight) Cooler and somewhat drier air will filter south in the wake of last nights MCS and a weak cold front that will push south through the area this morning. This will result in a quieter day with slightly cooler temperatures across Oklahoma and north Texas. There is an outside chance for a storm or two this afternoon across western north Texas with perhaps a better chance during the evening hours as convection develop across the High Plains of New Mexico and then propagates southeast toward western north Texas.
CAMs have suggested that the current line to our northwest would make slow progress southeast into northwest AL and southern middle TN through 23-00Z, then possibly decay due to the lower instability and weak forcing.
240 PM MDT Mon Jun 9 2025 KEY MESSAGES: 1) Haze and smoke will continue to be problematic at times, and may be in the unhealthy range by Tuesday behind a cold front. Meanwhile, late tonight into Tuesday a more significant plume of haze and smoke may push into the region behind a cold frontal passage.
Broad southwesterly flow will develop across the area by midweek as upper ridging builds over the western Atlantic and a upper level cutoff low slowly lifts north from south Texas.
- Much warmer temperatures are expected Tuesday with daytime readings in the 80s to low 90s.
Small hail is also possible within any thunderstorm due to the cooler air aloft. High temperatures will warm to near normal in the low to middle 70s.
316 PM EDT Mon Jun 9 2025 A cold front along with a series of disturbances aloft will affect the area into mid-week. An upper level disturbance and an approaching cold front will bring chances for showers and storms to the area through the near term period with the potential for the convection to be more widespread Tuesday afternoon than this afternoon into tonight. Lows tonight will fall to the lower 70s with highs Tuesday in the mid 80s. Convection is likely to be ongoing for the first half of Tuesday night as cold front approaches the area before stalling. Offshore ridge, from surface up to 700mb, develops offshore with moisture advection around ridge maintaining PWATs of 1.