Aikyam-Lab/Synoptic-Bench huggingface dataset:
128 AM EDT Tue Sep 3 2024 - Tranquil weather continues - Another warm up, another cool down - Tranquil weather continues High pressure is in control of our weather, leading to cool mornings and mild afternoons. Tuesday will feature slightly warmer daytime temperatures as 850 mb temps rise a few degrees to around 10C-11C. - Another warm up, another cool down September tends to be a roller coaster type of month as the Great Lakes transitions from the hot summer temperatures to much cooler fall temperatures. High pressure that's over us right now will be centered over the Mid Atlantic coast by mid week.
This trough is forecast to move west across the forecast area this morning, and exiting our western counties early this evening.
330 AM EDT Tue Sep 3 2024 Dry and mild conditions will continue through midweek before warmer air builds back in late week.
249 AM EDT Tue Sep 3 2024 A cold front will spread cooler and drier air into the area through midweek. Weak low pressure in the Gulf of Mexico and along the Carolina coast may spread showers into the area late this week into this weekend. Overnight lows may be slightly warmer through the central midlands due to this insulation. Much drier air will eventually spread south most likely after daybreak in association with a cold front as strong high pressure to the north builds south across the Carolina into Georgia. Key Message(s): - Much cooler temperatures expected. Finally, cooler temperatures move into the region behind the cold front. Day time highs through the period range from the upper 70s north, to the low/mid 80s south. Cooler temperatures continue into the weekend as clouds and wedge pattern remain.
Then upper level ridging returns Wednesday through the weekend, with hot and smoky conditions. That will change, however, as the upper low to the west approaches, cooling temps aloft while warming at the surface which will enhance the convective potential. The showers and storms will diminish from southwest to northeast this evening, except lingering in the far north as the upper low moves across northeast Oregon into n-central Idaho tonight through Tuesday. The storms will be slower-moving near the center of the low, accompanied by brief heavy rainfall. A new upper ridge develops on Wednesday in the wake of the exiting low for a return to dry conditions and warmer temperatures.
308 AM EDT Tue Sep 3 2024 High pressure will build in from the north through mid-week. Low pressure and another front is expected to impact the area late week and this weekend. Latest analysis shows strong 1028mb high pressure centered over the Great Lakes with frontal boundary now well offshore. High pressure will continue to build in from the north today as waves of low pressure develop along the stalled front offshore. This will keep things pleasantly cooler, less humid and breezy. High pressure will continue to build in from the north tonight as waves of low pressure move along the stalled offshore front. Low pressure offshore and developing coastal trough may lead to showers moving towards the immediate coast overnight. Lows falling into the low to mid 60s inland and upper 60/low 70s for the beaches.
(Today and tonight) An upper level trough remains in place from northern Chihuahua to western Oklahoma. Water vapor imagery is showing a circulation on the southern end of the trough south of El Paso that will lift northeastward as the trough as a whole moves slowly eastward and begins to shear apart. Have adjusted forecast high temperatures downward from the blend inits more in line with the cooler MOS numbers. The weakening trough will still be present tonight but confidence in prolonged precipitation this far north is looking less likely with PoPs limited to the southeastern third but decreasing to the slight chance to chance category.
(Today through Wednesday) An upper level trough across West Texas this morning is forecast to continue to shear northeast today and tonight into Oklahoma, and into the mid Mississippi River Valley Wednesday. In the lower levels, the broad area of low pressure that was off the mid Texas coast yesterday is now near the coast this morning. Slightly warmer conditions are expected on Wednesday.
1143 PM CDT Mon Sep 2 2024 Surface analysis this evening places a cold front near the northern Gulf Coast. Meanwhile, a 1027 mb ridge of high pressure is building into portions of the Lower Mississippi and Tennessee Valleys. CJC Dry and mild weather will prevail through Tuesday as high pressure covers the region.
349 AM EDT Tue Sep 3 2024 High pressure from the north will provide cooler temperatures for much of the work week under decent northeasterly flow. The cold front has pushed well south this morning with high pressure building in from the northeast. Highs today will be in the lower to middle 80s. highs in the low/mid 80s with lows Wednesday night in the mid/upr 60s.
110 AM EDT Tue Sep 3 2024 Drier and cooler conditions will continue through midweek before warmer air builds back in late week.
1048 PM MDT Mon Sep 2 2024 - 2 to 3 degrees warmer tomorrow. - Passing front brings cooler temperatures and better chances of precipitation for the middle of the week. - Warming trend into the weekend with daily chances of precipitation over and near the higher terrain. Temps tomorrow will be a few degrees warmer than today, and expect temps to reach into he low 90s across the plains with U80s over the divides.
Highs today will be in the low to mid 90s with mid/upper 80s on Wednesday due to additional clouds and rainfall.
618 AM EDT Tue Sep 3 2024 High pressure will build in from the north through mid-week. Low pressure and another front is expected to impact the area late week and this weekend. Latest analysis shows strong 1028mb high pressure centered over the Great Lakes with frontal boundary now well offshore. High pressure will continue to build in from the north today as waves of low pressure develop along the stalled front offshore. This will keep things pleasantly cooler, less humid and breezy. High pressure will continue to build in from the north tonight as waves of low pressure move along the stalled offshore front. Low pressure offshore and developing coastal trough may lead to showers moving towards the immediate coast overnight. Lows falling into the low to mid 60s inland and upper 60/low 70s for the beaches.
920 AM EDT Tue Sep 3 2024 High pressure from the north will provide cooler temperatures for much of the work week under decent northeasterly flow. The cold front has pushed well south this morning with high pressure building in from the northeast. Highs today will be in the lower to middle 80s. highs in the low/mid 80s with lows Wednesday night in the mid/upr 60s.
2) A cold front will lead to isolated thunderstorms forming over western and central Montana late today. WEATHER PATTERN OVERVIEW: Upper ridging will keep dry weather conditions in place for now across the CWA, but a cold front will push through late today. The upper trough moves into the state on Wednesday with fairly strong cold air advection.
1038 AM EDT Tue Sep 3 2024 High pressure builds into the region through the middle of the week, gradually moving offshore mid to late week.
827 AM EDT Tue Sep 3 2024 High pressure builds into the region through the middle of the week, gradually moving offshore mid to late week.
911 AM EDT Tue Sep 3 2024 A strong high pressure system settles in over the region through the middle of the week. Sunny skies are expected today with high pressure in control. There will be low humidity, with dew points in the low 50s during the afternoon and light southeast winds around 5 mph or less.
630 AM CDT Tue Sep 3 2024 (Today through Wednesday) An upper level trough across West Texas this morning is forecast to continue to shear northeast today and tonight into Oklahoma, and into the mid Mississippi River Valley Wednesday. In the lower levels, the broad area of low pressure that was off the mid Texas coast yesterday is now near the coast this morning. Slightly warmer conditions are expected on Wednesday.
- Potential for thunderstorms, some strong to severe, today and Wednesday - Cooler, near average temperatures expected over the latter half of the week Water vapor imagery depicts upper ridge over the northern plains. Increasing mid level moisture and buoyancy will lead to isolated to scattered high based storms over northeastern WY as the trough nears the region. Cooler conditions will move into the region by tomorrow as the upper trough moves overhead.
638 AM EDT Tue Sep 3 2024 High pressure from the north will provide cooler temperatures for much of the work week under decent northeasterly flow. The cold front has pushed well south this morning with high pressure building in from the northeast. Highs today will be in the lower to middle 80s. highs in the low/mid 80s with lows Wednesday night in the mid/upr 60s.
Very hot conditions are expected across the CWA as a thermal ridge centers over the forecast area. Cooler temperatures are expected Wednesday with highs mostly in the upper 70s to low 80s.
905 AM EDT Tue Sep 3 2024 Dry and mild conditions will continue through midweek before warmer air builds back in late week.
704 AM EDT Tue Sep 3 2024 High pressure will build across Pennsylvania Tuesday. The high will pass off of the New England coast late in the week with lingering ridging extending westward into Pennsylvania.
603 AM EDT Tue Sep 3 2024 High pressure builds into the region through the middle of the week, gradually moving offshore mid to late week.
858 AM MDT Tue Sep 3 2024 Upper level trof over ID/OR/WA continues to move slowly eastward.
An inverted trough is expected to move over the Lower-MS Valley, promoting moisture advection into region, along with pushing a stalled frontal boundary slightly northward throughout the day.
635 AM EDT Tue Sep 3 2024 Dry and mild conditions will continue through midweek before warmer air builds back in late week.
508 AM PDT Tue Sep 3 2024 A warming and drying trend kicks off today as high pressure builds into the area.
(Rest of Today) An inverted trough axis will shift west out of northern GA and across the local forecast area today.
High pressure will continue to wobble and strengthen across the Southwest this week.
High pressure over the eastern Great Lakes this morning will push east and off the New England coast Wed while also building down the eastern seaboard, bridging the weak trough laying just north of the local waters.
Showers and thunderstorms are expected to return to Southwestern Montana today as an upper level trough continues to push through the area, with just an isolated shower or storm possible across the plains.
807 AM EDT Tue Sep 3 2024 An U/L ridge will build over the Florida peninsula today and will hold over the area through the end of the week. A strong U/L low will move over the Great Lakes this weekend with a trough axis extending to the Lower Mississippi Valley. Heights over the Florida peninsula will gradually lower over the weekend as the trough edges east, however the ridge axis will hold over south Florida. At the surface, high pressure remains east of the Florida peninsula with weak south to southeast flow across the peninsula.
632 AM CDT Tue Sep 3 2024 (Today through Wednesday) A broad area of low pressure of the Texas Coast will continue to support an active pattern of daily showers and thunderstorms through the period. Given the high moisture values, heavy rainfall is possible with any of these showers and thunderstorms. Given the limited duration of the higher heat indices, a Heat Advisory or Special Weather Statement wonât likely be needed.
541 AM CDT Tue Sep 3 2024 - Dry conditions continue through at least Wednesday night as high pressure remains in place.
1018 AM EDT Tue Sep 3 2024 A large area of high pressure centered over the western Great Lakes will move east today, reaching New England by Wednesday, and providing dry and cooler weather for much of the Mid Atlantic region. The high will remained wedged down the east slopes of the Appalachians as a cold front approaches the area at the end of the week.
734 AM EDT Tue Sep 3 2024 (Today and tonight) Late tonight lows have dropped lower than previous days, now in the mid 50s northeast, to the 60s and lower 70s extreme south as we remain in a northerly flow pattern with drier air pushing in behind a cold front that sinked south to the central part of the gulf coast states by early this morning. Upper heights are rising again today enough to produce afternoon highs in the lower to mid 80s in the north and central to some mid to possibly even upper 80s southern valley, which will be near seasonal normals, and more comfortable with the lower dewpoints.
A warming and drying trend kicks off today as high pressure builds into the area.
A weak cold front will cross the state tonight into Wednesday morning, with a more stable, cooler airmass building across the region for the remainder of the workweek.
- Another round of showers and thunderstorms develop this afternoon a head of a cold front. - Cooler temperatures and widespread showers and thunderstorms over central and eastern WY are expected for Wednesday. A cold front looks to move through the state this afternoon bringing with it cooler and wetter conditions. Winds increase during the day ahead of the cold front with some gusts of 15 to 25 mph possible. Cooler temperatures will follow behind the cold front bringing fall like weather for Wednesday.
Max temps in the lower 90s most areas with upper 80s coast. A deep mid level trough/cut-off low is forecast to dive southward across the Great Lakes late week and this weekend then pivot NE. The mid level ridge over the SW Atlc will bend but not break, preventing the front from pushing cleanly thru the area. High pressure over the eastern Great Lakes this morning will push east and off the New England coast Wed while also building down the eastern seaboard, bridging the weak trough laying just north of the local waters.
544 AM CDT Tue Sep 3 2024 (Today and tonight) An upper level trough remains in place from northern Chihuahua to western Oklahoma. Water vapor imagery is showing a circulation on the southern end of the trough south of El Paso that will lift northeastward as the trough as a whole moves slowly eastward and begins to shear apart. Have adjusted forecast high temperatures downward from the blend inits more in line with the cooler MOS numbers. The weakening trough will still be present tonight but confidence in prolonged precipitation this far north is looking less likely with PoPs limited to the southeastern third but decreasing to the slight chance to chance category.
Currently there is an weakening, upper level low over eastern Washington and Oregon with moisture ahead of it impacting mainly our eastern areas along the Wyoming border and the Montana divide this morning with scattered showers and isolated to widely scattered thunderstorms. Outside of thunderstorm outflows expect wind gusts of 20 to 35 mph this afternoon as this low pressure system moves over our area. Otherwise, models show high pressure building in Wednesday bringing overall dry conditions.
648 AM EDT Tue Sep 3 2024 A large area of high pressure centered over the western Great Lakes will move east today, reaching New England by Wednesday, and providing dry and cooler weather for much of the Mid Atlantic region. The high will remained wedged down the east slopes of the Appalachians as a cold front approaches the area at the end of the week.
High pressure will bring hotter temperatures by mid week, with above normal temperatures expected through the remainder of the week. A strong ridge of high pressure through southern California and Arizona will bring hotter temperatures this week along with a drying trend for the area.
We are still looking at a south to southeast flow regime which will result in the highest PoPs being along the west coast of Florida once the east coast sea breeze makes it across the state in the late afternoon and evening hours. An U/L ridge will build over the Florida peninsula today and will hold over the area through the end of the week. A strong U/L low will move over the Great Lakes this weekend with a trough axis extending to the Lower Mississippi Valley. Heights over the Florida peninsula will gradually lower over the weekend as the trough edges east, however the ridge axis will hold over south Florida. At the surface, high pressure remains east of the Florida peninsula with weak south to southeast flow across the peninsula.
720 AM EDT Tue Sep 3 2024 High pressure builds into the region through the middle of the week, gradually moving offshore mid to late week.
346 AM MDT Tue Sep 3 2024 Showers and thunderstorms are expected to return to Southwestern Montana today as an upper level trough continues to push through the area, with just an isolated shower or storm possible across the plains.
719 AM EDT Tue Sep 3 2024 High pressure will build across Pennsylvania today. The high will pass off of the New England coast late in the week with lingering ridging extending westward into Pennsylvania.
1202 PM MDT Tue Sep 3 2024 Widely scattered showers and thunderstorms are expected to return to Southwestern and portions of North-central Montana today as an upper level trough continues to push through the area.
An upper low over NE Oregon will slowly work eastward through the day. Circulation around the low will keep smoke over the region in the short term.
Otherwise, area-wide thick mid/upper-level clouds should keep maximum temperatures in the low-mid 80s today, with the exception of far SE OK, where temperatures may climb into the the mid-upper 80s.
Cool NE surface flow prevails as high pressure builds across the OH Valley. This trough will slowly inch westward this afternoon. Surface heating will create a corridor of instability along the trough and isolated showers and thunderstorms may develop across NE MS late this afternoon into the early evening.
239 PM EDT Tue Sep 3 2024 A cold front will spread cooler and drier air into the area through midweek. Weak low pressure in the Gulf of Mexico and along the Carolina coast may spread showers into the area late this week into this weekend.
144 PM EDT Tue Sep 3 2024 High pressure builds into the region through the middle of the week, gradually moving offshore mid to late week.
1057 AM MDT Tue Sep 3 2024 Widely scattered showers and thunderstorms are expected to return to Southwestern and portions of North-central Montana today as an upper level trough continues to push through the area.
Confidence on the timing is medium and the lower conditions could develop an hour or two earlier than whats in the TAF. A thermal trough will develop along the south coast today with north winds increasing in all areas through Wednesday.
247 PM CDT Tue Sep 3 2024 - Warmer temperatures on Wednesday with highs near 90 degrees.
Shower coverage will gradually diminish by early to mid-afternoon Wednesday as the upper low shifts to the east leaving in its wake a mostly dry remainder of the day with highs in the lower to upper-80s for most.
141 PM EDT Tue Sep 3 2024 A warming trend is expected this week with dry conditions under high pressure. Below average temperatures and precipitation chances return this weekend with a cut-off low. Mostly clear skies are expected for the period save some high cirrus overnight, mostly south of I-70 in an inverted trough.
1151 AM MDT Tue Sep 3 2024 Upper level trof over ID/OR/WA continues to move slowly eastward.
A thermal trough will develop along the south coast today with north winds increasing in all areas through Wednesday.
Satellite imagery shows center of upper low over the Central Mountains this afternoon. Band of showers/thunderstorms active over the Lemhi region just ahead of the trough axis. Main band of activity occurring over the highlands mainly east of I-15, though a few very light showers/sprinkles still possible across the Snake Plain early this afternoon. Once the trough axis slips east, dry conditions will be in place all areas. Another interesting feature of note with this upper trough is the wall of smoke wrapped around the low, slowly dropping southeast across the region. Upper ridge begins to rebuild to the west with northwest flow in place through Wednesday night, as trough axis fully exits SE Idaho during the day Wednesday.
131 PM EDT Tue Sep 3 2024 High pressure will build across Pennsylvania today. The high will pass off of the New England coast late in the week with lingering ridging extending westward into Pennsylvania.
1254 PM CDT Tue Sep 3 2024 (Rest of Today) An inverted trough axis will shift west out of northern GA and across the local forecast area today.
High pressure continues over the state with a drier than usual airmass covering the state. High pressure will continue to wobble and strengthen across the Southwest this week.
127 PM EDT Tue Sep 3 2024 High pressure from the north will provide cooler temperatures for much of the work week under decent northeasterly flow. The cold front has pushed well south this morning with high pressure building in from the northeast. Highs today will be in the lower to middle 80s. highs in the low/mid 80s with lows Wednesday night in the mid/upr 60s.
(This afternoon through Wednesday) High pressure to the northeast of the area will keep east to northeasterly low level flow and easterly flow in the mid levels over the area through the short term. A low cloud deck moving across the eastern half of central Alabama this afternoon will keep temperatures a few degrees cooler and instabilities lower than the areas in the southwest with instabilities around 1500 J/kg. Temperatures Wednesday will be a couple of degrees cooler than today's highs with cloud cover expected to increase through the afternoon.
348 PM EDT Tue Sep 3 2024 High pressure will be centered just south of the area through late Wednesday, then slowly exit across the Maritimes through the end of the week. Low pressure approaches from the south and west this weekend. High pressure remains over the central Great Lakes this afternoon with northwesterly winds continuing as it continues to build east. Cumulus has developed over northern zones as moisture remains in the low-levels. Temps will be warmer than last night/s mins.
151 PM MDT Tue Sep 3 2024 - Critical fire weather conditions through the evening - What, if any, thunderstorm chances exist this evening and Wednesday - More seasonable temperatures expected to finish out the week Latest 500hpa analysis shows upper low spinning into ID chimney region with lead wave moving through central MT/NRN WY area. Broad ridge axis extends from the desert SW to the northeast toward the Great Lakes region. The first big question is will approaching lead 500hpa wave and associated sfc trof/cool front fire any storms later this afternoon into the overnight hours.
This is especially true towards the Lower Keys where winds have been a touch lower than the eastern portions of the Keys. Guidance indicates a fresh moisture undulation in the lower to mid levels will pass through the Keys tomorrow with MOS probabilities still averaging above 50%. Combining this with the strengthening of the low level ridge across Florida freshening east to southeast breezes will result in noticeably different conditions than the start of this week. Fall still remains out of our grasp however, as guidance stalls a deep trough just north of Florida at the end of the forecast period.
1249 PM EDT Tue Sep 3 2024 A warming trend is expected this week with dry conditions under high pressure. Below average temperatures and precipitation chances return this weekend with a cut-off low. Mostly clear skies are expected for the period save some high cirrus overnight, mostly south of I-70 in an inverted trough.