Aikyam-Lab/Synoptic-Bench huggingface dataset:
712 PM EDT Mon Jul 7 2025 Weak high pressure holds tight across the region through the week, with typical summertime convection possible daily along the advancing sea breeze. High pressure remains offshore Tuesday, with a subtle trough of low pressure situated inland.
615 PM CDT Mon Jul 7 2025 (This evening through Tuesday) A trough will be in place across central Alabama, more in line with the typical inverted trough over the region. Highs will be in the low to mid 90s with lows in the low to middle 70s. On Tuesday the center of the high pressure will be over the western Carolinas giving us more of an easterly/southeasterly flow. Between the trough and Any organized activity to our north should remain north of the area.
An upper level area of low pressure has made it to the central California coast where it is expected to remain mostly stationary through late Tuesday. Meanwhile, an area of high pressure continues to strengthen over the Four Corners region.
939 PM EDT Mon Jul 7 2025 * Hot and humid today with thunderstorm downpours concentrated in the northwest Alleghenies and near the I-95 corridor * Thunderstorms will be focused primarily over the southeastern half of the Commonwealth Tuesday afternoon * Seasonably warm and muggy for the rest of the week with scattered thunderstorms during the afternoon and evening Partly cloudy skies are over all of Central PA this afternoon with the remnants of Chantal now pushing east of the area and more widespread showers and storms along a cold front not quite into our area yet. The main hazard of concern today will be scattered showers and thunderstorms along/ahead of a slow- moving cold front pushing southeastward from the Lower Great Lakes.
626 PM CDT Mon Jul 7 2025 A weak upper low centered just off the Louisiana coast breaks down to a weak upper trof before moving into eastern Texas Tuesday night.
Upper level high over the swrn US will build northward through the eastern Great Basin Tuesday as a Pacific upper low moves toward the California coast.
944 PM EDT Mon Jul 7 2025 A cold front will move across the area this evening, with showers and thunderstorms expected. Lows will range from the upper 60s in WC OH to lower 70s in the lower Scioto Valley. By Tuesday morning, the cold front is forecast to be most of the way through the ILN forecast area, but it is expected to weaken and mostly wash out by the time peak heating is underway.
High pressure lingers through Tuesday with an upper level low near northern California.
658 PM CDT Mon Jul 7 2025 (This evening through Tuesday night) We are currently sitting between the noses of two high pressure systems, one centered over the desert southwest and the other being the Bermuda high intruding over the far northeast Gulf. The gap in between is a relative low pressure area at the base of a trough over the midwest. Tomorrow will see the center of the low pressure moving into the nortwest Gulf decreasing rain chances slightly, although still in the 50% range west of I-55 and 30-40% east of of I-55. High temperatures will be in the 90s today and tomorrow with humidities that the push the feels-like temps up to the low 100s. Overnight low temps will be in the low to mid 70s.
Based on the relatively uniform wind field across the Keys waters, the low level lift is not present. Away from convection, expect overnight lows to remain in the lower 80s with dew points in the mid to upper 70s.
Some decrease in high temperatures is possible later in the week as weak upper troughing moves in from the west and rain chances increase slightly.
High pressure lingers through Tuesday with an upper level low near northern California. Warmer temperatures return for the latter part of the week and into the weekend as a weak upper level ridging is expected to return. High pressure continues to linger over the northeast Pacific which will keep conditions dry and warm through Tuesday. Overall, expect daytime highs tomorrow to be just a tad cooler than today. As this low moves eastward, the ridge also will get pushed eastward and a upper level trough starts to dive down from the eastern Pacific. This will bring much cooler and moister conditions. This trough also brings around a 20-40% chance of light showers to southwest Washington with most of northwest Oregon evading the rain.
07Z water vapor imagery showed the upper level ridge still over MN and AZ with northwest flow over the central plains.
This ridging will shift northward by Wednesday with the ridge axis extending through the central part of the state. High pressure ridges across Florida and into the eastern gulf producing light winds less than 10 knots and seas less than 2 feet.
By Wednesday with the high pressure entrenched over the Desert Southwest, the low off the West Coast will have lifted north and moved inland as it becomes an open wave tracking east on the zonal flow aloft.
(Tonight through Wednesday night) An inverted mid-level trough of low pressure currently over the central Gulf of America will gradually retrograde into Mexico during the period. The likely scenario will be streamer convection over the lower Texas coastal waters at night, followed by showers and thunderstorms that will develop inland during the heating of the day and gradually migrate from east to west.
Updated at 300 AM CDT Tue Jul 8 2025 - Hot and humid conditions will continue through the next seven days or so, with afternoon heat indices in the upper 90s and the low 100s.
227 AM EDT Tue Jul 8 2025 * Cold front stalls overhead tonight and lies there for a couple of days.
Can't rule higher amounts - Isolated to scattered rain chances continue into Wednesday for portions of the Hill Country, I-35 corridor, and the coastal plains - Warming trend is in store throughout the week - Rain chances return for most location over the weekend (Today through Wednesday) The local area stays under the influence of an upper level ridge to the west and upper level inverted trough to the east throughout the day. Then late at night into the overnight hours, a mid level trough axis reaches the southern Edwards Plateau leading to the development of isolated to scattered showers over that area.
213 AM EDT Tue Jul 8 2025 High pressure will bring drier and somewhat cooler air into the region through mid week, before more unsettled conditions return later in the week. Weak cold front continuing to slowly press southeast through the state this morning. Temperatures today in the upper 70s to lower 80s, with cooler readings across the higher terrain.
Slight chances for showers/storms across the higher terrain today and tomorrow, becoming more focused across the White Mountains for the rest of the period. An area of high pressure remains centered over the AZ/NM border, but we'll gradually see this high shift around the region through the next several days. With the current placement of this ridge, daytime highs will continue to climb into the hot to dangerously hot range.
1155 PM CDT Mon Jul 7 2025 -An upper low will support enhanced rain chances of sea breeze and daytime heating showers and thunderstorms through Wednesday. -An upper level trough moving around a strong ridge over the southwest U. will continue a break in the upper level ridge through the end of the week allowing typical diurnally driven convection mainly during the afternoon. -Over the weekend, the upper level ridge will expand into the region bringing the potential for lower rain chances and an increase in the heat. (Tonight through Wednesday night) Water vapor imagery shows an upper level low spinning just south of the Louisiana coast. The upper level low will gradually push west across the forecast area and become stretched as it moves into east Texas over the next couple of days.
- Isolated Thunderstorms late this afternoon with dangerous lightning and localized flooding - Warmer temperatures by the latter part of the week.
Throughout the period, upper-level ridging attempts to build across portions of the southeast US, however, it looks to have some trouble establishing itself across our local area through late week. This trough will help to keep our area underneath a weakness within the ridge.
Expect daytime highs generally in the low to mid 90s with overnight lows generally in the mid 70s.
Coverage is once again expected to be scattered with the highest chance of precipitation along and south of the parkways. The pattern will continue to feature a general ridging to the west and troughiness across the eastern third of the CONUS. By the weekend, we'll be located between two upper level features, an amplifying ridge over the southeastern US, and a strong upper low over the Dakotas. Went with a few TEMPO groups to highlight this but confidence is still on the low side.
Afternoon highs in the mid to upper 80s and a moist airmass (dewpoints in the low to mid 70s) will lead to strong destabilization late morning through the afternoon, with >2500-3000 J/kg MUCAPE and marginal shear (~20-25kt bulk shear).
A relief from the higher PWAT air seems unlikely, so any of these showers and storms will be capable of locally heavy rainfall. The highest precip probabilities will remain mainly along and south of the Mason Dixon line though lower end probabilities will exist as far north as Pittsburgh.
Afternoon highs will peak into the low to mid 90s areawide.
1151 PM CDT Mon Jul 7 2025 - Warmer temperatures by the latter part of the week.
1228 AM CDT Tue Jul 8 2025 (Tonight through Wednesday night) An inverted mid-level trough of low pressure currently over the central Gulf of America will gradually retrograde into Mexico during the period. The likely scenario will be streamer convection over the lower Texas coastal waters at night, followed by showers and thunderstorms that will develop inland during the heating of the day and gradually migrate from east to west.
A broad cold front will stall over the area this morning and remain parked through the daytime. With the approach of a low pressure northwest of the area, southerly flow does start increasing late. Forecast highs are in the lower to middle 80s.
A pretty similar setup to yesterday with mostly clear conditions allowing temperatures to climb quickly into the low to mid 90s by the early to mid afternoon.
* Temperatures will continue to increase each day through mid-week as high pressure builds over the region. Hotter than normal temperatures will continue as ridging builds over the region, allowing for temperatures to continue to increase each day through mid-week. On Wednesday, temperatures in the lower Colorado River Valley will top out between 110 and 120 degrees while temperatures in the lower elevations of southern Mohave County (e.
And has been the case, there is some potential for convection developing this afternoon over the High Plains to make a run for northwest Oklahoma. But the NBM POPs for Tuesday evening are at the low extreme of the guidance envelope and seem to be very much underdoing the storm potential for Tuesday evening/night.
Slightly cooler temperatures are expected Tuesday and Wednesday.
241 AM EDT Tue Jul 8 2025 A slow moving front will continue to push across the region, bringing cooler temperatures and additional changes for showers today. Temperatures will be cooler compared to previous days, with high temperatures generally climbing into the upper 70s and lower 80s.
221 AM EDT Tue Jul 8 2025 A cold front will move south today with high pressure building in from the north. High pressure remains over the area through Wednesday. A trough of low pressure will cross the area through the end of the week. Inverted trof looks to set up over western zones tomorrow afternoon with slight chance for showers and tstms over the very far west. The upper level trof over the Great Lakes should slowly start to move E.
An upper level area of low pressure has made it to the central California coast where it is expected to remain mostly stationary through late Tuesday. Meanwhile, an area of high pressure continues to strengthen over the Four Corners region. The aforementioned low is expected to lift into northern California on Wednesday, allowing the ridge of high pressure to slide westward over central and southern California.
At the surface, high pressure will remain in place tonight before weak pressure falls work into the Great Lakes through Tuesday. Forecast Details: Quiet weather will persist through tonight and much of Tuesday with aforementioned high pressure in place. Still, temperatures look to dip into the low to mid 50s for most across the Northwoods late tonight into Tuesday morning -- and potentially getting down into the upper 40s across interior eastern upper where less cloud cover is anticipated.
1148 PM CDT Mon Jul 7 2025 Updated at 1141 PM CDT Mon Jul 7 2025 - Hot and humid conditions will continue through the next seven days, with afternoon heat indices in the upper 90s and the low 100s.
(Today through Wednesday) Weak 500 mb ridging, marked by anticyclonically-curved flow, will extended westward across Alabama today, while a trough axis spans the Mississippi Valley. Thunderstorm activity this afternoon is expected to be relatively isolated in nature due to the lingering weak ridging. However, the approaching upper-level trough and weak height falls may support slightly greater coverage across our northwestern counties. A deficit in PWAT values south of I-20, associated with a decaying weak 500 mb ridge, should result in somewhat lower coverage of afternoon convection.
-An upper level low will support increased diurnal convection through Wednesday before diminishing slightly. -Strong ridging out west and weak ridging to the east will contribute to rising heights across the forecast area.
623 AM CDT Tue Jul 8 2025 (Tonight through Wednesday night) An inverted mid-level trough of low pressure currently over the central Gulf of America will gradually retrograde into Mexico during the period. The likely scenario will be streamer convection over the lower Texas coastal waters at night, followed by showers and thunderstorms that will develop inland during the heating of the day and gradually migrate from east to west.
311 AM MDT Tue Jul 8 2025 - Much warmer today with the possibility of a few storms over the Black Hills.
A pretty similar setup to yesterday with mostly clear conditions allowing temperatures to climb quickly into the low to mid 90s by the early to mid afternoon. The combination of these temperatures and the higher RH values will create peak heat index values in the upper 90s to lower 100s once again.
228 AM PDT Tue Jul 8 2025 Updated at 1248 AM PDT Tue Jul 8 2025 * Red flag warning across central Nevada Tuesday afternoon * Fire Weather Watch Wednesday for northeastern and east-central Nevada * Near triple digit heat in the valleys of Northern and Central Nevada this weekend will create moderate risk for heat-related illnesses (Today through next Tuesday) WEATHER PATTERN OVERVIEW: Southwest flow over the region separates a low pressure system to the west over northern CA and a large high pressure system building over the desert southwest. Wednesday the ridge and associated HPC encroach further on the SW CONUS as the low pressure system to the west begins its migration further inland. The low pressure system transitions to an open trough over CA by Wednesday morning and will drag its axis across northern NV by Wednesday evening.
606 AM CDT Tue Jul 8 2025 Updated at 601 AM CDT Tue Jul 8 2025 - Hot and humid conditions will continue through the next seven days or so, with afternoon heat indices in the upper 90s and the low 100s.
High pressure will build over the Desert Southwest through the middle of the week, bringing dry and increasingly hot temperatures.
550 AM CDT Tue Jul 8 2025 - Isolated Thunderstorms late this afternoon with dangerous lightning and localized flooding - Warmer temperatures by the latter part of the week.
Coverage is once again expected to be scattered with the highest chance of precipitation along and south of the parkways. The pattern will continue to feature a general ridging to the west and troughiness across the eastern third of the CONUS. By the weekend, we'll be located between two upper level features, an amplifying ridge over the southeastern US, and a strong upper low over the Dakotas.
615 AM CDT Tue Jul 8 2025 Throughout the period, upper-level ridging attempts to build across portions of the southeast US, however, it looks to have some trouble establishing itself across our local area through late week. This trough will help to keep our area underneath a weakness within the ridge.
609 AM CDT Tue Jul 8 2025 -An upper level low will support increased diurnal convection through Wednesday before diminishing slightly. -Strong ridging out west and weak ridging to the east will contribute to rising heights across the forecast area.
630 AM CDT Tue Jul 8 2025 (Today through Wednesday) The local area stays under the influence of an upper level ridge to the west and upper level inverted trough to the east throughout the day. Then late at night into the overnight hours, a mid level trough axis reaches the southern Edwards Plateau leading to the development of isolated to scattered showers over that area.
546 AM MDT Tue Jul 8 2025 - Much warmer today with the possibility of a few storms over the Black Hills.
* Temperatures across the region will continue to increase each day through mid-week as high pressure builds over the area. Temperatures will continue to increase as a high pressure ridge builds over the area.
Highs this afternoon will again climb into the mid 90s, with dew points only mixing into the low and middle 70s. With weak troughing over western portions of the region and high pressure aloft nudging in from the east, the better rain chances to will be across the western half of the CWA today, but chances for showers and storms will still exist across the remainder of the area this afternoon into this evening. Afternoon highs will peak into the low to mid 90s areawide.
717 AM EDT Tue Jul 8 2025 A slow moving front will continue to push across the region, bringing cooler temperatures and additional changes for showers today. Temperatures will be cooler compared to previous days, with high temperatures generally climbing into the upper 70s and lower 80s.
1022 AM EDT Tue Jul 8 2025 A cold front will move south today with high pressure building in from the north. High pressure remains over the area through Wednesday. A trough of low pressure will cross the area through the end of the week. Overcast skies remain over the lower two-thirds of the forecast area, while clear skies have begun to intrude from the north, and will continue to push southwards through the day as the front slowly shifts offshore. Inverted trof looks to set up over western zones tomorrow afternoon with slight chance for showers and tstms over the very far west. The upper level trof over the Great Lakes should slowly start to move E.
608 AM CDT Tue Jul 8 2025 (Today through Wednesday) Weak 500 mb ridging, marked by anticyclonically-curved flow, will extended westward across Alabama today, while a trough axis spans the Mississippi Valley. Thunderstorm activity this afternoon is expected to be relatively isolated in nature due to the lingering weak ridging. However, the approaching upper-level trough and weak height falls may support slightly greater coverage across our northwestern counties. A deficit in PWAT values south of I-20, associated with a decaying weak 500 mb ridge, should result in somewhat lower coverage of afternoon convection.
The local forecast area sits between high pressure across the Mid-Atlantic and an upper level trough axis dipping down across the Plains. Expect afternoon highs to top out in the low to mid 90s, with some upper 90s possible in areas that remain mostly sunny. Only concern tonight is the low to medium chance for fog, especially in areas that receive heavy rainfall today.
1153 AM CDT Tue Jul 8 2025 (Today through Wednesday) Weak 500 mb ridging, marked by anticyclonically-curved flow, will extended westward across Alabama today, while a trough axis spans the Mississippi Valley. Thunderstorm activity this afternoon is expected to be relatively isolated in nature due to the lingering weak ridging. However, the approaching upper-level trough and weak height falls may support slightly greater coverage across our northwestern counties. A deficit in PWAT values south of I-20, associated with a decaying weak 500 mb ridge, should result in somewhat lower coverage of afternoon convection.
Upper-level ridging will cause the heat to peak today, with the Treasure Valley experiencing the hottest temperatures, ranging from 100 to 105 degrees. Greater thunderstorms potential for Wednesday across much of the area though there are quite large differences in the high-res models on location of convective development.
An upper level trough over the Gulf is approaching the TX coast. The upper level trough will continue to move into TX Wednesday bringing another round of showers and thunderstorms across the Coastal Plains and I-35 to the Hill Country.
This looks to be the last day of southwesterly flow as the ridge will be shifting north and looks to remain overhead through the weekend. Ridge will be shifting overhead tonight.
1247 PM CDT Tue Jul 8 2025 Updated at 1229 PM CDT Tue Jul 8 2025 - Hot and humid conditions will continue through the next seven days or so, with afternoon heat indices in the upper 90s and the low 100s.
1223 PM CDT Tue Jul 8 2025 Throughout the period, upper-level ridging attempts to build across portions of the southeast US, however, it looks to have some trouble establishing itself across our local area through late week. This trough will help to keep our area underneath a weakness within the ridge.
- Cold front arrives late Wednesday bringing slightly cooler weather for late week but returning to above normal temps for the weekend. They'll continue to climb into the mid to upper 90s before the day is over as high pressure remains in full control today.
The weak upper trough has continued to back away and weaken over the northwest Gulf allowing rising mid-level heights and high pressure to nose itself farther west over the northern Gulf coast today.
Training of storms over the same location could lead to flash flooding given the high rain rates. Only concern tonight is the low to medium chance for fog, especially in areas that receive heavy rainfall today.
The upper ridge over the southeast states will slowly breakdown through midweek as the base of an upper trough situated just west of the Mississippi River shifts eastward over our region. The upper trough then gradually weakens and lifts northward the latter half of the week, followed by a large upper high pressure area building across the entire southeast CONUS over the weekend.
High pressure ridge pattern becoming the dominate feature over the West Coast during the latter half the week.
-An upper level low and deep moisture will support increased diurnal convection through tomorrow with some locally torrential downpours possible.
Updated at 157 PM CDT Tue Jul 8 2025 - A few showers and thunderstorms (10-30 percent chance) are expected this afternoon and evening, with the best chance across southeast New Mexico and the higher terrain areas of west Texas. (This afternoon through Wednesday night) A ridge of high pressure builds over northwestern Mexico and the Desert Southwest to start off the short term period.
Overnight lows will drop into the low 70s. Elsewhere, daytime highs will peak in the low 90s.
240 PM EDT Tue Jul 8 2025 A cold front moves south this evening, with high pressure building in from the north. High pressure remains over the area through Wednesday. A trough of low pressure will cross the area through the end of the week. The cold front has finally shifted offshore, pulling any lingering rain showers off the coast and leaving behind cloudy skies for the Downeast region this evening. A weak inverted trough may setup to the west, leading to some local shower and storm development over the Central Highlands during peak diurnal heating hours.