Aikyam-Lab/Synoptic-Bench huggingface dataset:
Tomorrow night, looks to cool into the low to mid 50s and fog once again will be possible, although it may form earlier in the night. We will have a high pressure system over the Four Corners region with low pressure to the northeast of the Great Plains. We do look to have a few cold fronts moving through the area, which would provide enough lift to start off precipitation, if the other two ingredients are in place. High pressure over the region will bring mainly clear skies to western areas tonight and Tuesday.
High pressure is centered over central Arizona this afternoon, with warm temperatures and mostly sunny skies for most areas. There is good model agreement that the center of high pressure will drift northward up into Utah over the next few days would be favorable for advecting some of the deeper moisture northward as well. A chance of showers and thunderstorms exists starting at 18Z for the higher terrain along the Rim and again in the White Mountains.
209 AM EDT Mon Sep 1 2025 After a period of cooler days, warmer weather is expected to open the month of September.
1151 PM MDT Sun Aug 31 2025 - Dry and slightly warmer for Labor Day.
1014 PM MDT Sun Aug 31 2025 - Mostly dry weather and gradually warmer temps continue through Labor Day. Upper ridge extending north into East Idaho this afternoon per satellite imagery. Ridge continues to amplify into Labor Day across the region, with dry conditions continuing. Ensembles maintain strong ridge through the Great Basin and East Idaho for the next several days.
(Today through Tuesday) At the surface, a subtle inverted trough is centered near the Mississippi River.
152 AM EDT Mon Sep 1 2025 High pressure building in from the north keeps relatively dry conditions and below normal temperatures through Tuesday.
The best chances (30-50%) will mainly be found in the higher terrain south of I-10 (the Davis Mountains, Big Bend, and east towards Terrell County), mainly due to terrain forcing and relative proximity to the decaying boundary/convergence zone.
Expect similar conditions Tuesday behind a weak front, which will set highs a few degrees cooler in the 80s.
219 AM EDT Mon Sep 1 2025 High pressure will extend across the area through late week. A cold front will approach from the northwest late in the weekend. Today: Aloft, a large area of low pressure will attempt to become cutoff across the Mid-Atlantic states, supporting a dry westerly flow across the Southeast United States. At the sfc, high pressure will continue to strengthen while building south into the local area, while broad troughing prevails offshore. In general, high temps should range in the low-mid 80s, warmest across Southeast Georgia away from the beaches. Tonight: Very little change will occur in the overall pattern with high pressure persisting locally. Light northeasterly winds under mostly clear skies should support overnight lows generally in the low-mid 60s inland to upper 60s/lower 70s near the coast (warmest along the beaches).
233 AM MDT Mon Sep 1 2025 - Mostly dry weather and gradually warmer temperatures continue through most of the week. Issued at 210 AM MDT Mon Sep 1 2025 High pressure remains in place over Southeast Idaho bringing mostly clear skies, dry conditions, and overall light winds.
103 AM CDT Mon Sep 1 2025 (Rest of tonight and Monday) An upper low will slowly make its way off the eastern Atlantic coast as troughing/northwest flow enforces seasonably cool temperatures across much of the eastern CONUS. Not expecting much if any weather impacts overnight as temps fall to the low to mid 60s with light easterly winds and mostly clear skies.
A low pressure system continued to drift across the forecast area today, bringing a smattering of rain showers to the region. Southwesterly winds ahead of an approaching cold front will usher in slightly warmer air, bumping afternoon highs into the low to mid 70s.
222 AM EDT Mon Sep 1 2025 High pressure will allow dry conditions and comfortable temperatures to persist through midweek.
- A cold front will move through on Tuesday, bringing the potential for severe weather.
153 AM EDT Mon Sep 1 2025 High pressure will bring mainly fair weather and seasonably warm temperatures through midweek.
- Temperatures trending warmer but still unseasonably cool.
* A building ridge overhead will allow for above normal temperatures for Labor Day. But a few Cu buildups are possible along the ridges.
An upper level trough will remain over the eastern CONUS through the week. The local area will be on the backside of the trough with a resultant northwest upper flow pattern. This will result in building high pressure across the area and associated continued dry conditions. High temps will warm into the low 90s through the end of the week with lows also gradually increasing as well.
645 AM CDT Mon Sep 1 2025 An upper level trough will remain over the eastern CONUS through the week. The local area will be on the backside of the trough with a resultant northwest upper flow pattern. This will result in building high pressure across the area and associated continued dry conditions. High temps will warm into the low 90s through the end of the week with lows also gradually increasing as well.
Cold air damming behind this trough axis was advecting dew points in the 50s from the Carolinas into GA and far east AL. Overnight lows will drop into the lower to middle 60s.
639 AM EDT Mon Sep 1 2025 High pressure will allow dry conditions and comfortable temperatures to persist through midweek.
511 AM MDT Mon Sep 1 2025 - Mostly dry weather and gradually warmer temperatures continue through most of the week. Issued at 210 AM MDT Mon Sep 1 2025 High pressure remains in place over Southeast Idaho bringing mostly clear skies, dry conditions, and overall light winds. Ensembles maintain strong ridge through the Great Basin and East Idaho for the next several days.
400 AM MDT Mon Sep 1 2025 KEY MESSAGES: - Warm and dry conditions will finish out the holiday weekend before a cold front swings through the region on Tuesday.
Updated at 544 AM MDT Mon Sep 1 2025 - Rain chances and moisture levels will diminish starting tomorrow through midweek with storms favoring the area mountains - High temperatures through the week remain near normal to just below normal The upper high that was centered over the area today will slowly migrate over to the Four Corners by tomorrow. Throughout the work week, this high pressure will become elongated and amplified extending from the EPZ area all the way to southern British Columbia.
553 AM EDT Mon Sep 1 2025 High pressure will remain across the region today offering continued dry weather with temperatures warming closer to normal.
644 AM CDT Mon Sep 1 2025 (Today) A closed upper low (blocked by a narrow ridge to its north) will continue to drift slowly northward across the Mid-Atlantic states today, maintaining NW flow of 15-25 knots across the TN Valley. At the surface, a streamline confluence axis representing the western edge of a CAD in the lee of the southern Appalachians is currently bisecting the CWFA and will continue to drift slowly northwestward into western portions of KY/TN and northern MS by late this afternoon, as the anticyclone responsible for the CAD begins to build further east-northeastward into the Canadian maritime provinces.
734 AM EDT Mon Sep 1 2025 After a period of cooler days, warmer weather is expected to open the month of September.
557 AM EDT Mon Sep 1 2025 High pressure building in from the north keeps relatively dry conditions and below normal temperatures through Tuesday.
- Meteorological Overview: An upper level ridge of high pressure will be reside over the Pacific Northwest for much of this week. This ridge will slowly shift east/west a bit each day. The further east the ridge is, like today/Tue. the warmer the afternoon temperatures will be. The further west the ridge shifts. the slightly cooler temperatures.
1056 AM EDT Mon Sep 1 2025 High pressure will extend across the area through late week. A cold front will approach from the northwest late in the weekend. High pressure will continue to ridge down the east side of the Appalachians with an elongated trough situated well offshore. Highs will top out mostly in the low 80s with a few mid 80s possible in southeast GA south of I_16. Tonight: Very little change will occur in the overall pattern with high pressure persisting locally. Light northeasterly winds under mostly clear skies should support overnight lows generally in the low-mid 60s inland to upper 60s/lower 70s near the coast (warmest along the beaches).
615 AM CDT Mon Sep 1 2025 (Today through Tuesday) At the surface, a subtle inverted trough is centered near the Mississippi River.
5% to 10% chance for thunderstorms, primarily over the high terrain, along with lightning strike or two.
-IG /Issued 355 AM MDT Mon Sep 1 2025/ - Meteorological Overview: An upper level ridge of high pressure will be reside over the Pacific Northwest for much of this week. This ridge will slowly shift east/west a bit each day. The further east the ridge is, like today/Tue. the warmer the afternoon temperatures will be. The further west the ridge shifts. the slightly cooler temperatures.
733 AM EDT Mon Sep 1 2025 High pressure will extend across the area through late week. A cold front will approach from the northwest late in the weekend. Today: Aloft, a large area of low pressure will attempt to become cutoff across the Mid-Atlantic states, supporting a dry westerly flow across the Southeast United States. At the sfc, high pressure will continue to strengthen while building south into the local area, while broad troughing prevails offshore. In general, high temps should range in the low-mid 80s, warmest across Southeast Georgia away from the beaches. Tonight: Very little change will occur in the overall pattern with high pressure persisting locally. Light northeasterly winds under mostly clear skies should support overnight lows generally in the low-mid 60s inland to upper 60s/lower 70s near the coast (warmest along the beaches).
731 AM EDT Mon Sep 1 2025 (Today through Tuesday) A prolonged period of unsettled weather continues across South Florida as deep upper-level troughing remains established over the Eastern Seaboard. Another element of added uncertainty will be the potential presence of a weak area of low pressure attached to that boundary, which could settle nearby or over the region today or tomorrow and help enhance convective activity. Highs both days will remain in the low to mid 90s, with overnight lows in the low to mid 70s inland, and mid to upper 70s near the coasts.
From synopsis, Somewhat unusual westerly breezes prevail across the Florida Keys as our area is situated between ridging in the Caribbean and troughing along the Eastern Seaboard. This low is progged to meander off into the western North Atlantic and rest on the west edge of the Bermuda High promoting an extension of the already established pattern in the Keys.
755 AM CDT Mon Sep 1 2025 (Today through Tuesday) Upper ridging over the Rockies tonight. Upper troughs from the Canadian Maritime Provinces to Virginia, and over the Canadian Prairie Provinces with weak ridging in between. This is producing northwesterly mid-level flow over the Lower Mississippi River Valley. The northwesterly upper flow will continue across the Lower Mississippi River Valley through the daytime hours Tuesday, and likely well beyond that point. Maximum apparent temperatures in the lower and middle 90s will seem fairly comfortable.
High pressure will bring mainly fair weather and seasonably warm temperatures through midweek.
- Mostly dry weather and gradually warmer temperatures continue through most of the week. High pressure remains in place over Southeast Idaho bringing mostly clear skies, dry conditions, and overall light winds. Ensembles maintain strong ridge through the Great Basin and East Idaho for the next several days.
1249 PM CDT Mon Sep 1 2025 - Dry and warmer weather is expected this week.
1132 AM MDT Mon Sep 1 2025 - High pressure will keep skies mostly clear over the lower elevations, and partly cloudy over the mountains, with a 15-20% chance of showers over the Absarokas, Wind Rivers, and Bighorns.
- Cooler weather with highs in the 60s and 70s anticipated mid to late week. Currently, remnants from a stationary mid/upper level low across the Dakotas/Great Plains continues to generate isolated showers/thunderstorms this afternoon, mainly across central and the eastern areas of the state this afternoon.
An area of low pressure currently sits over southeastern Nebraska, with continued shower activity across primarily southeastern Nebraska, although a few light returns are being picked up on radar across western Iowa. Shower activity will end northwest to southeast late this afternoon/early evening as the low slides southeast into northern Missouri. Tuesday, will be fairly quiet with dry conditions expected as we come under northwest flow, with a broad upper trough to the east. Temperatures for this time of the year range from the low to mid-80s for highs and the mid-50s to low 60s for lows. Tuesday's expected highs will range from the mid-70s across western Iowa and areas along and south of the Hwy 92 corridor to the low 80s along the NE/SD state line.
1221 PM CDT Mon Sep 1 2025 - A cold front will move through on Tuesday, bringing the potential for severe weather.
1022 AM CDT Mon Sep 1 2025 - A cold front will move through on Tuesday, bringing the potential for severe weather.
Temperatures will creep back up into the low to mid 90s along the coast to the low 100s across the Brush Country.
234 PM EDT Mon Sep 1 2025 High pressure to the north will maintain control into the middle of the week. A weak cold front late in the week could lead to a few showers.
205 PM MDT Mon Sep 1 2025 - Mostly dry weather and gradually warmer temperatures continue through most of the week. There are still a few pockets of wildfire smoke across the north, but with ridge axis continuing to build, the southerly flow developing across the region should push most of the smoke north. Forecast trend remains in place with a ridge of high pressure through most of the week. Ensembles vary slightly in breakdown of the ridge ahead of energy ejecting out of the Pacific low.
There is quite a moisture gradient this morning from our northwest where dew points are in the low 50s to areas further south and east where dew points are in the mid 60s. The higher moisture will still be around on Tuesday along with a troughy upper air pattern. With the showers and storms around highs on Tuesday will be a couple degrees cooler than today.
Upper troughing remains persistent across the eastern CONUS with our forecast area residing on the backside of this trough and northwest flow aloft continues to prevail.
121 PM EDT Mon Sep 1 2025 High pressure building in from the north keeps relatively dry conditions and below normal temperatures through Tuesday.
-IG /Issued 830 AM MDT Mon Sep 1 2025/ - Meteorological Overview: An upper level ridge of high pressure will be reside over the Pacific Northwest for much of this week. This ridge will slowly shift east/west a bit each day. The further east the ridge is, like today/Tue. the warmer the afternoon temperatures will be. The further west the ridge shifts. the slightly cooler temperatures.
959 AM MDT Mon Sep 1 2025 A strong ridge remains in place across the Pacific Northwest with the ridge axis positioned just to the west. Highs in the Treasure Valley are expected to reach around 100 degrees, which is roughly 15 degrees warmer than average for early September.
- Below normal temps will remain in place, with a reinforcing shot of cooler air arriving Wed evening.
210 PM EDT Mon Sep 1 2025 A large area of high pressure will remain over the region through at least Tuesday.
201 PM EDT Mon Sep 1 2025 High pressure will allow dry conditions and comfortable temperatures to persist through midweek.
136 PM PDT Mon Sep 1 2025 The region has been between two systems today, a large area of high pressure to the east and an area of low pressure off the coast. As we progress over the next couple of days, the strong high pressure will move over the westward, closer to the Pacific Nortwest. As a result, the low off the coast will also be pushed west.
159 PM EDT Mon Sep 1 2025 High pressure will extend across the area through late week. A cold front will approach from the northwest late in the weekend. Dry northeast flow will continue with high pressure centered across a large area from the east coast of Canada to New England.
1227 PM CDT Mon Sep 1 2025 Upper troughing remains persistent across the eastern CONUS with our forecast area residing on the backside of this trough and northwest flow aloft continues to prevail.
- Below normal temps will remain in place, with a reinforcing shot of cooler air arriving Wed evening. At the surface, high pressure continues to stretch across the Great Lakes region and into the Upper/Mid Mississippi Valley. By Wed afternoon, confidence remains high in a deep upper low tracking out of Manitoba/western Ontario and moving into the Western Great Lakes/Upper Mississippi Valley. This will allow a cold front to push south across the Plains, moving through the forecast area late Wed afternoon into Wed evening. There is good model agreement that another piece of energy will dive down the backside of the upper trough on Thu and will allow highs in the 70s to remain for Thu into the weekend. A weak cold front will shift winds from the north/northwest at 5-10 kt overnight.
Thunderstorm coverage may increase a bit on Tuesday as weak disturbances within the upper ridge over the Great Basin rotate through northerly flow aloft across CO. Moisture quality is still pretty poor in the low levels but there is a bit more elevated CAPE on Tuesday. Otherwise, high temperatures will top out similar to a degree or two warmer than those of today.
1252 PM CDT Mon Sep 1 2025 (Today through Tuesday) At the surface, a subtle inverted trough is centered near the Mississippi River.
119 PM EDT Mon Sep 1 2025 After a period of cooler days, warmer weather is expected to open the month of September.
1256 PM EDT Mon Sep 1 2025 High pressure will allow dry conditions and comfortable temperatures to persist through midweek.
- Dry and warmer weather is expected this week. A weak cold front will enter the Big Country tomorrow afternoon but the front will be dry, with only a wind shift and slightly cooler temperatures behind it. Temperatures will be pleasant tonight, with lows in the 60s and highs Tuesday mainly in the lower 90s.
133 PM EDT Mon Sep 1 2025 High pressure will remain situated across the Mid-Atlantic and stay wedged against the eastern face of the Appalachians through the midweek.
A slow cooling trend starts tomorrow, but picks up this weekend as another low pressure system possibly moves into the area. Models are currently hinting at increased afternoon wind gusts, primarily in NE CA, far NW NV, and along ridgelines. The low will also provide diffluence aloft, which will allow for thunderstorms to develop.
136 PM EDT Mon Sep 1 2025 High pressure will bring mainly fair weather and seasonably warm temperatures through midweek.
Today through Monday: Hot temperatures in the 90s to 100s will continue through much of the week thanks to a strong high pressure ridge.
833 PM EDT Mon Sep 1 2025 High pressure to the north will maintain control into the middle of the week. A weak cold front late in the week could lead to a few showers.
A broad very early season mid latitude trough remains parked over the eastern United States. The lower level trough reaches down into South Florida and central Gulf. The broad band of increased moisture and confluent flow will remain across our area while the low remains nearly stationary off the Florida Coast. Away from rain cooling, overnight lows will be broadly in the lower 80s with dew points in the mid to upper 70s. A weak low pressure system will continue to churn off the Central Florida Atlantic coast.
dry and comfortable weather will continue through midweek as high pressure slowly drifts eastward and off the New England coastline.
746 PM EDT Mon Sep 1 2025 A large area of high pressure will remain over the region through at least Tuesday.
723 PM EDT Mon Sep 1 2025 High pressure will extend across the area through late week. A cold front will approach from the northwest late in the weekend. Tonight: Quiet conditions will continue as a wedge of high pressure at the surface remains centered over the centered over the northeast U. This will keep low level northeast flow, with relatively dry, cooler conditions.
/issued 136 PM PDT Mon Sep 1 2025/ The region has been between two systems today, a large area of high pressure to the east and an area of low pressure off the coast. As we progress over the next couple of days, the strong high pressure will move over the westward, closer to the Pacific Nortwest. As a result, the low off the coast will also be pushed west.
500 PM MDT Mon Sep 1 2025 - High pressure will keep skies mostly clear over the lower elevations, and partly cloudy over the mountains, with a 15-20% chance of showers over the Absarokas, Wind Rivers, and Bighorns.
302 PM MDT Mon Sep 1 2025 - Dry and slightly warmer for Labor Day.
734 PM EDT Mon Sep 1 2025 High pressure building in from the north keeps relatively dry conditions and below normal temperatures through tomorrow.
747 PM EDT Mon Sep 1 2025 High pressure will remain situated across the Mid-Atlantic and stay wedged against the eastern face of the Appalachians through the midweek.
605 PM CDT Mon Sep 1 2025 - Dry and warmer weather is expected this week. A weak cold front will enter the Big Country tomorrow afternoon but the front will be dry, with only a wind shift and slightly cooler temperatures behind it. Temperatures will be pleasant tonight, with lows in the 60s and highs Tuesday mainly in the lower 90s.
515 PM MDT Mon Sep 1 2025 - Mostly dry weather and gradually warmer temperatures continue through most of the week. There are still a few pockets of wildfire smoke across the north, but with ridge axis continuing to build, the southerly flow developing across the region should push most of the smoke north. Forecast trend remains in place with a ridge of high pressure through most of the week. Ensembles vary slightly in breakdown of the ridge ahead of energy ejecting out of the Pacific low.
1019 PM EDT Mon Sep 1 2025 High pressure to the north will maintain control into the middle of the week. A weak cold front late in the week could lead to a few showers.
723 PM CDT Mon Sep 1 2025 Upper troughing remains persistent across the eastern CONUS with our forecast area residing on the backside of this trough and northwest flow aloft continues to prevail.
735 PM EDT Mon Sep 1 2025 High pressure to the north will maintain control into the middle of the week. A weak cold front late in the week could lead to a few showers.
- Near average temperatures, with highs in the low to mid 80s are forecast through the mid part of the week. This should allow the area to clear up by noon and let most of the CWA warm into the low to mid 80s. Tomorrow night, looks to cool into the low to mid 50s, but fog looks less likely as our surface moisture will have lowered. We will have a high pressure system over the Four Corners region with low pressure to the northeast of the Great Plains.
157 AM EDT Tue Sep 2 2025 High pressure will bring seasonable temperatures and mainly dry weather through Wednesday.
330 AM EDT Tue Sep 2 2025 High pressure continues to build off to the east through the middle of the week.
237 AM CDT Tue Sep 2 2025 Area radars are showing widely scattered showers across the region this morning, associated with a weak cold front that is somewhere over the southern third of the state.
- Temporarily much warmer Wednesday ahead of a cold front, with many locations warming into the lower 90s.
221 AM EDT Tue Sep 2 2025 High pressure to the north will maintain control into the middle of the week. A weak cold front late in the week could lead to a few showers.