Aikyam-Lab/Synoptic-Bench huggingface dataset:
Meister (Saturday through Sunday night) This weekend's edition of The Season of the Cutoff Low features the low reaching the apex of its southward drift to the Sabine Pass region tomorrow night before lifting northward as the ridge axis gets shunted eastward.
/DC/ Through Tonight: An upper-level low pressure system is in the process of cutting off from the main steering flow overhead today. Best rain chances will be focused in southern/eastern zones late tonight as the low lifts into the area. By midweek the system will depart from the area leading way for ridging across the area. Temperatures will warm into the lower 90s by Wed/Thu with the possibility for some areas to reach heat criteria as previous days rainfall will aid in high humidity values and in turn heat index values will near product criteria.
High pressure is strengthening over the region leading to temperatures in the triple digits today lasting through the weekend, up to 105 degrees on Sunday.
(Today) An area of low pressure over the northern Gulf Coast will gradually amplify today, forcing a cold front back north into portions of the Tennessee Valley.
206 AM EDT Sat May 10 2025 A cold front stalls over the Southeast this weekend. By Sunday, an upper low develops, bringing rain back from the south.
252 AM EDT Sat May 10 2025 As high pressure builds into he region through the weekend, skies will remain mostly sunny with a gradual warming trend.
350 AM EDT Sat May 10 2025 - A weak cold front drops south across the area today, bringing a slight chance for an isolated shower.
353 AM EDT Sat May 10 2025 High pressure will pass east across the lower Mid-Atlantic today, and will shift off the North Carolina coast tonight.
146 AM EDT Sat May 10 2025 Low pressure tracks to the Gulf of Maine tonight, then moves along the Downeast coast Saturday.
- A broad, cold trough moves over the region late Sunday into the first part of the week bringing cool and wet weather. The northern Rockies are right between a trough off the U. West Coast and a ridge over the northern Great Plains. With a stalled out cold front over the region Sunday, we expect more widespread thunderstorms.
446 AM EDT Sat May 10 2025 - Cooler today with breezy north winds.
The ridge that has been building into the southwest of the CONUS will continue to intensify today, leading to well above normal high temperatures this afternoon.
(Today through Sunday) The center of 500 mb low pressure will meander over Louisiana during the period, placing Deep South Texas and the Rio Grande Valley in a dry, generally northwest to southeast mid-level flow.
(06Z TAFS) VFR conditions will continue across much of the region overnight, with a mix of elevated cu/low AC cigs expected near an upper low pressure area that will remain anchored over Srn AR/N LA. Scattered -SHRA will continue to develop near the low center overnight and eventually drift W to MLU, which should persist intermittently through midday before setting in for much of the afternoon/evening as they backbuild W across Srn AR/N LA and possibly extreme Ern TX. These lower cigs should continue to expand W across Srn AR/N LA through daybreak Sunday as the upper low center begins to drift W across these areas.
- Shower/thunderstorm chances (50-75%) return towards the beginning of the week, with the higher chances east of Highway 65. Synoptic analysis shows an upper level closed low located to our south over the LA/AR vicinity, with an upper level ridge over the western CONUS. As of 2 AM, satellite imagery showed scattered high level clouds over much of the area, with observations showing temperatures in the low to mid 50s. Sunday's highs will be slightly warmer than today, with temperatures reaching the mid to upper 70s, increasing further towards west-central MO. The closed low is progged to remain over the LA vicinity through the weekend, however wrap-around upper level energy will bring low chances (15-25%) of showers and thunderstorms Sunday afternoon, primarily over south- central MO.
333 AM EDT Sat May 10 2025 Showers linger this morning, but will dissipate by noon as high pressure builds into the region.
Drier and cooler tonight with lows in the 40s and 50s. Discussion: Tonight, the upper level cut-off low will be moving away from the region into the Northeast. At the surface, a cold front will be just south of the region. A cooler, drier air mass is in place behind the front. Lows will be in the lower to mid 50s from generally Knoxville southward as clouds move into the region from the south. Tomorrow, rain chances will start to creep into the region from the south by afternoon as an upper level cut-off low sits over LA/MS. With increasing cloud cover tomorrow, highs will be slightly below normal in the lower to mid 70s.
416 AM EDT Sat May 10 2025 Low pressure tracks along the Downeast coast today.
110 AM EDT Sat May 10 2025 High pressure yields dry weather through the weekend. Weak northerly flow will allow afternoon temperatures to reach the mid 70s across the lowlands, ranging into the mid to lower 60s northeast mountains. Lows tonight will generally be from the lower 50s, ranging into the mid 40s. High pressure remains in control on Sunday, with dry, and warmer temperatures across the area. High temperatures on Sunday will generally top out in the upper 70s to lower 80s across the lowlands.
1255 AM CDT Sat May 10 2025 (Tonight through Saturday night) Quiescent weather conditions will prevail through the short term forecast period or through Saturday night as high pressure continues to increase its influence over the region. Tonight and Saturday night will be slightly cooler than normal and slightly less humid behind the cold front. Daytime highs on Saturday are expected to top out in the mid to upper 80s across Deep South Texas (upper 70s along SPI and the beaches along the Lower Texas Coast.
1135 PM CDT Fri May 9 2025 (This evening through Saturday night) The base of an upper level trough location along a line from Texas to the Great Lakes is currently being pinched off by a low near OH/PA. As the upper trough axis to the north of the CWA dug southward this morning/now, PVA on the southeastern side of the pivoting trough translated to surface pressure falls induced cyclogenesis and weak frontogenesis.
A low pressure system has stalled across Louisiana and Mississippi and will stay there Saturday. As we get into our Sunday the front associated with the low in Mississippi will slowly get closer to the state.
Today is expected to be the warmest, but as a broad area of low pressure starts to push eastward, temperatures are expect to slowly cool towards the 50s along the coast and 60s for inland locations. Dry and warm today with mostly clear skies as ridging continues to build into the area. Temperatures will be much more moderate on Saturday, with inland areas seeing a high around 70 and the coast seeing a high in the low to mid 50s. Also of note, with upper air temperatures will be cooler with Sunday's system, can't rule out some isolated weak thunderstorms.
305 AM EDT Sat May 10 2025 A moisture-starved cold front will drift southward across northern Ohio and northwest Pennsylvania late this afternoon through the evening.
High clouds will filter in from the east later this morning into the afternoon with mid-level moisture associated with the upper low spinning over the Louisiana and Mississippi state line.
Few to scattered cumulus with occasional patches of cirrus riding eastward on near-40 knot westerlies were noted early this morning with temperatures around 80F, with dewpoints in the lower 70s.
The exception will be southern areas, where the southerly moisture advection will have greater effect as the closed low along the Gulf coast lifts northward and the initially dry column is able to moisten from the top down.
316 AM CDT Sat May 10 2025 - Lake enhanced cold front to bring a chilly night tonight with a low chance (10-30%) of patchy frost in portions of northwest Illinois.
537 AM MDT Sat May 10 2025 - Showers and thunderstorms capable of producing gusty outflow winds, small hail, and moderate rainfall rates will develop over the higher terrain each afternoon this weekend.
While drier will be in place with PWAT values only around 1" (around the 25th percentile of climatology), there is low chance (15-20%) of showers this afternoon across the Victoria Crossroads as a band of vorticity in the mid levels wraps around a quasi-stationary low pressure in the Ark-La-Tex region of the Southern Plains. As the low pressure moves northeastward late tonight into tomorrow, rain chances will fall to near 0%.
A moisture-starved cold front will drift southward across northern Ohio and northwest Pennsylvania late this afternoon through the evening.
706 AM EDT Sat May 10 2025 - Cooler today with breezy north winds.
A closed upper low will remain nearly stationary over the Louisiana area through Sunday.
657 AM EDT Sat May 10 2025 - A weak cold front drops south across the area today, bringing a slight chance for an isolated shower.
1051 AM EDT Sat May 10 2025 Low pressure will move into the Gulf of Maine this afternoon, with mostly sunny skies and warmer temperatures returning as Canadian high pressure builds south into the eastern Great Lakes.
659 AM EDT Sat May 10 2025 High pressure will pass east across the lower Mid-Atlantic today, and will shift off the North Carolina coast tonight.
632 AM CDT Sat May 10 2025 (Today through Sunday) The center of 500 mb low pressure will meander over Louisiana during the period, placing Deep South Texas and the Rio Grande Valley in a dry, generally northwest to southeast mid-level flow.
635 AM CDT Sat May 10 2025 (Today through Sunday) Upper low centered over northern Louisiana this morning, with ridging over the Intermountain West. At the surface, low pressure was centered near Buoy 42040. The main cold front was to our north along Interstate 10. The upper low isn't going to be going much of anywhere over the next 36 hours. However, with the upper low remaining in the area, it is going to be tough to get rid of low level cloud cover today or tomorrow, unless it is very late in the day.
957 AM EDT Sat May 10 2025 High pressure will pass east across the lower Mid-Atlantic today, and will shift off the North Carolina coast tonight.
855 AM EDT Sat May 10 2025 As high pressure builds into he region through the weekend, skies will remain mostly sunny with a gradual warming trend.
649 AM EDT Sat May 10 2025 Showers linger this morning, but will dissipate by noon as high pressure builds into the region.
554 AM CDT Sat May 10 2025 (Today) An area of low pressure over the northern Gulf Coast will gradually amplify today, forcing a cold front back north into portions of the Tennessee Valley.
Weather over western Washington will turn more cooler and showery today as a weak system passes through the area.
653 AM EDT Sat May 10 2025 As high pressure builds into he region through the weekend, skies will remain mostly sunny with a gradual warming trend.
1019 AM EDT Sat May 10 2025 Low pressure tracks along the Downeast coast today.
306 AM MDT Sat May 10 2025 - Warming trend continues today, with afternoon showers and thunderstorms for the higher terrain. - Warmer, more dry and increased winds through midweek.
648 AM EDT Sat May 10 2025 Low pressure tracks along the Downeast coast today.
908 AM EDT Sat May 10 2025 Weak high pressure will bring sunny and milder weather today. Another stronger high will build over New York Sunday and continue the sunny weather with even warmer temperatures approaching 10 degrees above normal.
A broad area of low pressure starts to push eastward towards the end of the weekend. In addition to the cooler temperatures, we can also expect some light precipitation starting late tonight through at least the middle of the upcoming week.
933 AM EDT Sat May 10 2025 A moisture-starved cold front will drift southward across northern Ohio and northwest Pennsylvania late this afternoon through the evening.
637 AM CDT Sat May 10 2025 Today and Tonight: Cooler than normal temperatures with above normal rain chances will continue through tonight. Early morning satellite imagery/RAP analysis showed the circulation around a closed low centered over our Louisiana parishes. This closed low will shift slightly to the southwest and deepen through tonight. This low will track north today then west tonight to beneath the closed low forming a nearly stacked low over the western portions of our CWA by Sunday morning.
725 AM EDT Sat May 10 2025 Weak high pressure will bring sunny and milder weather today. Another stronger high will build over New York Sunday and continue the sunny weather with even warmer temperatures approaching 10 degrees above normal.
Air temps are in the low to mid 60s for most with some upper 50s north of I-30. Movement of the upper low will end up over Toledo Bend by early Sunday. The upper low begins to bounce back eastward across the MS River by the end of the short term. Meanwhile, our temps will trend cooler under the clouds and off and on rainfall. High temps on Mother's Day will average around 70 degrees areawide as the clouds and rain peak over the area under the slightly deeper upper low at 568dam. /24/ (Sunday Night through Saturday) The upper low will continue bumping back to the E/NE overnight with another round of mid 50s to start the new week.
401 AM MDT Sat May 10 2025 - Showers and thunderstorms capable of producing gusty outflow winds, small hail, and moderate rainfall rates will develop over the higher terrain each afternoon this weekend.
Otherwise, above normal temperatures expected as high pressure strengthens across the Great Basin.
127 PM EDT Sat May 10 2025 As high pressure builds into he region through the weekend, skies will remain mostly sunny with a gradual warming trend.
1241 PM EDT Sat May 10 2025 Low pressure tracks along the Downeast coast today.
1253 PM EDT Sat May 10 2025 A moisture-starved cold front will drift southward across northern Ohio and northwest Pennsylvania late this afternoon through the evening.
130 PM EDT Sat May 10 2025 Showers linger this morning, but will dissipate by noon as high pressure builds into the region.
341 PM EDT Sat May 10 2025 - Fair and cool tonight followed by warmer and increasing chances for Rain by mid-week A Frost Advisory has been issued for the northern tier as cool high pressure builds in tonight with clear skies and winds decoupling later this evening. Good radiational cooling conditions should result in areas of frost across the north where lows will fall to the lower to mid 30s.
With the low overhead tomorrow, cloud coverage will again be a deciding factor in afternoon maxT potential. Elected to trend on the higher side of the guidance with lower 70's tomorrow afternoon as we have been on the higher side of the guidance in the last few days.
A preliminary look at some of the data suggest precipitation with the arrival of the upper trough from the Gulf of Alaska will be delayed and most locations could get away with dry conditions on Sunday, the exception will be along the coast and coastal counties where off/on showers could move in late in the morning and afternoon, We'll look at this in more detail.
125 PM EDT Sat May 10 2025 - Cooler today with breezy north winds.
Ample clearing has begun generally in the vicinity of the I-65 corridor in south- central Alabama into the Florida Panhandle as drier mid level air has wrapped around the low. Any updraft that can tap into the sfc vorticity pool with the magnitude of 3CAPE in place could see some potential for tornadogenesis as that surface vorticity gets stretched, perhaps starting initially as landspouts until a given storms mesocyclone develops/matures. /29 A low pressure system has developed over our Gulf waters and is expected to push onshore this morning. This low will allow for winds and seas to quickly increase, and a Small Craft Advisory is in place through this afternoon.
The area of heavier showers associated with the deformation zone of the closed low will continue to gradually pivot north and westward as we go through the afternoon and evening. /EC/ Today and Tonight: Cooler than normal temperatures with above normal rain chances will continue through tonight. Early morning satellite imagery/RAP analysis showed the circulation around a closed low centered over our Louisiana parishes. This closed low will shift slightly to the southwest and deepen through tonight. This low will track north today then west tonight to beneath the closed low forming a nearly stacked low over the western portions of our CWA by Sunday morning.
Although for the remainder of today's shower activity will be limited due to lack of moisture in the lower and mid levels, any shower that does develop will have at least a slight chance for thunder.
As we head into the evening and overnight hours the light rain band will finally get a shove northward along with the low and should bring precipitation chances to much of the southern Appalachians overnight. Afternoon showers and possibly thunderstorms will likely develop across the southeast tomorrow with the warmer atmosphere, but coverage is expected to be more scattered.
(This evening through Sunday night) A cutoff upper level low is centered across the Lower Mississippi Valley, just north of the CWA. A decent dry slot on the southern portion of the upper low and lending to much lower rainfall amounts today compared to last week. Regardless, if any storms do develop, large hail will be the main threat with such a deep upper low nearby as it causes mid level temps to be quite cold.
1200 PM MDT Sat May 10 2025 - Showers and thunderstorms capable of producing gusty outflow winds, small hail, and moderate rainfall rates will develop over the higher terrain each afternoon this weekend.
300 PM MDT Sat May 10 2025 - Showers and thunderstorms capable of producing gusty outflow winds, small hail, and moderate rainfall rates will develop over the higher terrain each afternoon this weekend.
1214 PM CDT Sat May 10 2025 (Rest of Today and Tonight) Morning satellite imagery shows a low pressure system near the Gulf Coast with a plume of moisture spinning around it across much of the Southeast.
235 PM CDT Sat May 10 2025 To begin the period, a low pressure system continues to move into the state from the southeast.
344 PM EDT Sat May 10 2025 Low pressure exits the area tonight with high pressure building in behind on Sunday.
338 PM EDT Sat May 10 2025 High pressure remains in control through through the weekend.
109 PM EDT Sat May 10 2025 High pressure yields dry weather through the weekend. Weak northerly flow will allow afternoon temperatures to reach the mid 70s across the lowlands, ranging into the mid to lower 60s northeast mountains. Lows tonight will generally be from the lower 50s, ranging into the mid 40s. A nearly barotropic upper low stationed over the Deep South will continue to limit penetration of Gulf enhanced moisture into the forecast area through Mother's Day yielding a mainly dry forecast outside of a very isolated shower, primarily across the far southern coalfields. Modest southerly flow with filtered sunshine will yield mild daytime highs in the 70s to lower 80s on Mother's Day across the lower elevations.
1122 AM MDT Sat May 10 2025 - Warming trend continues today, with afternoon showers and thunderstorms for the higher terrain. - Warmer, more dry and increased winds through midweek.
1150 AM CDT Sat May 10 2025 (Today through Sunday) The center of 500 mb low pressure will meander over Louisiana during the period, placing Deep South Texas and the Rio Grande Valley in a dry, generally northwest to southeast mid-level flow.
Ample clearing has begun generally in the vicinity of the I-65 corridor in south- central Alabama into the Florida Panhandle as drier mid level air has wrapped around the low. Any updraft that can tap into the sfc vorticity pool with the magnitude of 3CAPE in place could see some potential for tornadogenesis as that surface vorticity gets stretched, perhaps starting initially as landspouts until a given storms mesocyclone develops/matures. MM/25 A low pressure system has developed over our Gulf waters and is expected to push onshore this morning. This low will allow for winds and seas to quickly increase, and a Small Craft Advisory is in place through this afternoon.
228 PM CDT Sat May 10 2025 (This evening through Sunday Night) Scattered showers and isolated thunderstorms will continue developing across the area as heating interacts with lingering moisture and weak disturbances rotating behind the mid-upper low situated to our east. On Sunday, the upper low over ncntl LA retrogrades back closer to the Sabine. Rain will again taper off in the evening with lows Sunday night even a touch cooler in the upper 50s.
(Rest of Today and Tonight) Morning satellite imagery shows a low pressure system near the Gulf Coast with a plume of moisture spinning around it across much of the Southeast.
Aloft, the upper low will stay situated to our east, keeping our upper level winds from the north/northeast as well. Rain chances will be low the next 2 days, but we can't rule out and isolated shower or thunderstorm in our southeastern counties as weak disturbances rotate around the low aloft.
A ridge of high pressure remains dominate over desert southwest today, causing a warming of temperatures in Central California.
High clouds associated with the upper low sitting over LA/AR/MS early this afternoon will continue to stream across portions of the fa today.
237 PM EDT Sat May 10 2025 Low pressure will move into the Gulf of Maine this afternoon, with mostly sunny skies and warmer temperatures returning as Canadian high pressure builds south into the eastern Great Lakes.
631 PM CDT Sat May 10 2025 (This evening through Sunday night) A cutoff upper level low is centered across the Lower Mississippi Valley, just north of the CWA. A decent dry slot on the southern portion of the upper low and lending to much lower rainfall amounts today compared to last week. Regardless, if any storms do develop, large hail will be the main threat with such a deep upper low nearby as it causes mid level temps to be quite cold.
A shift begins late tonight as a broad low pressure system moves in from the west, bringing cooler temperatures and periods of light precipitation.
859 PM EDT Sat May 10 2025 Low pressure exits across the Maritimes tonight. High pressure builds toward the region Sunday.
1029 PM EDT Sat May 10 2025 High pressure remains in control through through the weekend.
601 PM EDT Sat May 10 2025 Low pressure will move into the Gulf of Maine this afternoon, with mostly sunny skies and warmer temperatures returning as Canadian high pressure builds south into the eastern Great Lakes.
609 PM EDT Sat May 10 2025 High pressure remains in control through through the weekend.
733 PM EDT Sat May 10 2025 High pressure remains in control through through the weekend.
718 PM EDT Sat May 10 2025 - Fair and cool tonight followed by warmer and increasing chances for Rain by mid-week A Frost Advisory has been issued for the northern tier as cool high pressure builds in tonight with clear skies and winds decoupling later this evening. Good radiational cooling conditions should result in areas of frost across the north where lows will fall to the lower to mid 30s.
711 PM CDT Sat May 10 2025 (Rest of Today and Tonight) Morning satellite imagery shows a low pressure system near the Gulf Coast with a plume of moisture spinning around it across much of the Southeast.
523 PM MDT Sat May 10 2025 - Showers and thunderstorms capable of producing gusty outflow winds, small hail, and moderate rainfall rates will develop over the higher terrain each afternoon this weekend.
612 PM CDT Sat May 10 2025 To begin the period, a low pressure system continues to move into the state from the southeast.
Cooler and showery weather today as a weak system passes through the area.
Issued by National Weather Service Pittsburgh PA 237 PM EDT Thu Apr 3 2025 A cold front passing through this afternoon will bring seasonable conditions later tonight and Friday.
(Rest of Today and Tonight) Will continue to see competing airmasses today as an upper trough tries to push a cold front east of the MS River Valley and high pressure over the western Atlantic stalls this eastward progression.