Aikyam-Lab/Synoptic-Bench huggingface dataset:
927 AM EDT Thu Apr 25 2024 Not much to change in the morning update as the region remains firmly under the influence of broad high pressure. (Today through Friday) Mid-lvl ridging over the Central US will gradually shift east through the late week period resulting in continued dynamic subsidence and reinforcement of the dry and stable airmass over SFL. At the surface initially weak high pressure over the western Atlantic will prevail today, with the weak gradient favoring a sea-breeze driven wind regime. High temperatures will remain seasonable, ranging from the lower 80s near the east coast to the mid to upper 80s over the west coast/Interior. Given the continued influence of mid-lvl ridging rainfall is once again not expected.
900 AM EDT Thu Apr 25 2024 Low pressure will exit across the Maritimes today.
Look for cooler and unsettled conditions for the second half of the week as a pair of weather disturbances move across Arizona.
Persistent onshore winds at the lower levels combined with an increasingly southwester- ly flow aloft will help to maintain this warm and increasingly humid airmass already in place across SE TX. Rain chances will be going up further tomorrow as the mid/upper trough finally begins its trek into the Southern Plains. highs today/tomorrow are going to in the lower to mid 80s. with lows tonight/tomorrow night mostly in the lower 70s.
645 AM EDT Thu Apr 25 2024 Low pressure will exit across the Maritimes today.
1017 AM EDT Thu Apr 25 2024 Today will be dry and sunny, but cooler than normal.
Ensembles show a trough dropping down from the northwest, moving into the Great Basin, that will bring precipitation across our forecast area today into Friday, highest over the mountains.
515 AM EDT Thu Apr 25 2024 Low pressure will exit across the Maritimes today.
622 AM EDT Thu Apr 25 2024 High pressure will be in control with dry weather Thursday and Friday. Northerly flow allows temperatures to fall below freezing Thursday night.
651 AM CDT Thu Apr 25 2024 (Today through Friday) We are going to see great weather today with highs pushing into the low to mid 70s. Skies will start out clear but as the afternoon goes on we will start to see increasing mid to high level clouds ahead of a short wave and warm front. This short wave and warm front will move in Thursday night into Friday morning and will bring the chance for some scattered showers. (Friday Night through next Thursday) Upper level ridging builds in for the weekend with an active pattern setting up to our west. With the active pattern off to our west and high pressure just to our east we will see a good pressure gradient over us bringing breezy winds.
The midlevel trough continues to push inland across the Four Corners Region, and will sweep across Colorado this evening. This will draw a cold front southeastward across the state today, bringing some sfc focus to the increased moisture across the state. Friday the trough will be deepening across the Northern Plains, keeping the ample moisture wrapped around the backside across WY. The next trough will be dropping in from the NW across the northern Rockies, bringing another batch of instability. Models continue bring better precipitation amounts across the state due to multiple lifting mechanisms, but with some deviation in models on overall precip amounts and trouble with the previous several storms, have kept some of the highest QPF amounts in check for the state.
720 AM EDT Thu Apr 25 2024 (Today through Friday) Mid-lvl ridging over the Central US will gradually shift east through the late week period resulting in continued dynamic subsidence and reinforcement of the dry and stable airmass over SFL. At the surface initially weak high pressure over the western Atlantic will prevail today, with the weak gradient favoring a sea-breeze driven wind regime. High temperatures will remain seasonable, ranging from the lower 80s near the east coast to the mid to upper 80s over the west coast/Interior. Given the continued influence of mid-lvl ridging rainfall is once again not expected.
646 AM EDT Thu Apr 25 2024 Weak high pressure will build in today while a front stalls to our south.
622 AM CDT Thu Apr 25 2024 (Today through Friday) A cold front, oriented east to west and bisecting the area in half, is slowly pushing southward this morning. Upper level ridging builds into the area tonight and Friday. Continued weak impulses rotating around the ridge will provide lift along the surface boundary for isolated shower and storm coverage overnight and early Friday morning across the northeast.
604 AM EDT Thu Apr 25 2024 - Much warmer temperatures this weekend with highs around 80.
550 AM CDT Thu Apr 25 2024 (Today) Tranquil weather across the Tennessee Valley early this morning as high pressure continues to promote clear/calm conditions. However, some changes are coming as a deepening mid/upper trough well to the northwest across the central Plains will shift into the Mid- Mississippi/lower Ohio Valley. In response, a warm front will gradually lift NE from central Alabama into the Tennessee Valley by this evening.
939 AM EDT Thu Apr 25 2024 High pressure over the Great Lakes will bring dry weather to the area today. A warming trend will begin by the end of the week, as an upper level ridge moves east of the region, with precipitation chances developing by Friday afternoon.
635 AM EDT Thu Apr 25 2024 High pressure over the Great Lakes will bring dry weather to the area today. A warming trend will begin by the end of the week, as an upper level ridge moves east of the region, with precipitation chances developing by Friday afternoon.
704 AM EDT Thu Apr 25 2024 Today will be dry and sunny, but cooler than normal.
722 AM PDT Thu Apr 25 2024 Gusty southwest to west winds; areas of night and morning drizzle or light rain; and cooler conditions are expected through Friday.
910 AM EDT Thu Apr 25 2024 High pressure will be in control with dry weather into Friday. Northerly flow allows temperatures to fall below freezing again tonight.
A weak surface anticyclone sits in the western North Atlantic and extends across the Gulf of Mexico. Temperatures range from 76 to 81 degrees with dew points comfortably in the lower to mid 60s. As daytime heating across the Florida Peninsula continues, a thermal trough will develop and bifurcate the surface anticyclone. Gentle to moderate breezes will prevail in the near term as an Atlantic ridge remains extended westward across Florida. This high will be subsumed by a larger high spreading into the western North Atlantic late this week and into the weekend.
106 PM EDT Thu Apr 25 2024 (This afternoon through Friday) Models show high pressure/mid level ridging dominating the weather pattern across the region. The ridge gradually shifts eastward through the weekend with overall subsidence and dry conditions prevailing. Afternoon temperatures will again range from the lower 80s near the east coast to the mid to upper 80s over interior areas. Reinforcing high pressure is seen in models arriving on Friday, which will increase pressure gradients across Soflo. Given the continued influence of mid-lvl ridging, rainfall is once again not expected.
(This afternoon through Friday) Models show high pressure/mid level ridging dominating the weather pattern across the region. The ridge gradually shifts eastward through the weekend with overall subsidence and dry conditions prevailing. Afternoon temperatures will again range from the lower 80s near the east coast to the mid to upper 80s over interior areas. Reinforcing high pressure is seen in models arriving on Friday, which will increase pressure gradients across Soflo. Given the continued influence of mid-lvl ridging, rainfall is once again not expected.
151 PM PDT Thu Apr 25 2024 Gusty westerly winds; periods of drizzle or light rain west of the mountains; and cooler conditions are expected through Friday. The marine layer will remain deep into Friday as a low pressure system digs south into the Great Basin. As the core of the low digs into the Great Basin Friday afternoon and evening, periods of light showers are expected to develop.
(Through Friday) A stationary front just north of the forecasting region located in GA alongside some weak upper level troughing is causing some light westerly winds to prevail across the forecasting area today. Minimum temperatures are expected to go to the low 60s in AL, GA, and Fl counties, with the potential for overnight-to-early-morning fog development occuring at PCB and TLH. Maximum temperature should reach in the low 80s around PCB, and upper 80s at inland FL, AL, and GA counties.
Meanwhile, surface observations show a warm front to our south over central MS and AL. (Friday Night through next Thursday) An overall quiet pattern for Middle TN looks to set up this weekend as ridging builds overhead, allowing temperatures to warm into the mid-80's.
Southerly flow will continue to increase as ridging continues to build from the southeast. A stalled cold front is expected to linger over northern portions of the area throughout the day, bringing isolated showers and thunderstorms possibilities to areas along and north of HWY 82 and northeast MS. Rain chances will begin to diminish for northern areas during the evening hours as the stalled frontal boundary transition into a warm front and lift northward out of the CWA.
Scattered showers and isolated thunderstorms will be possible this evening, mainly to the north of Memphis ahead of a slow moving warm front. After the warm front moves north of the Mid- South, warmer and more humid conditions will spread into the region on Friday and continue through the weekend.
1255 PM EDT Thu Apr 25 2024 - Much warmer temperatures this weekend with highs around 80.
129 PM EDT Thu Apr 25 2024 High pressure will be in control with dry weather through Friday. Northerly flow allows temperatures to fall below freezing again tonight.
1207 PM EDT Thu Apr 25 2024 Low pressure will exit across the Maritimes today.
Afternoon highs today are expected to top out in the lower 90s over the Rio Grande Plains, along with 80s everywhere else.
With the stronger impulses, the upper ridge will suppress over the Gulf. Although this feature gets suppressed, heights will continue to rise across the region and once again another warm/warmer day anticipated for Friday.
Deep mixing today brought the higher wind gusts to 30 to 40 mph and drier air (RH values below 30%) down to the surface for a Red Flag warning to be issued for our Minnesota counties. Tonight into early tomorrow morning the first low pressure system will ejects into the Central Plains and slowly moves northeast to increase cloud cover over our region.
307 PM EDT Thu Apr 25 2024 High pressure will continue across the region through Friday night, resulting in clear skies, light winds, and comfortable temperatures.
A more organized line of showers and possible thunderstorms will take shape over eastern Oregon late this afternoon in advance of an upper trough. Gusts to 30 kt in stronger showers, and along/just behind the cold front tonight. A cold front will arrive this evening with light rain showers along and behind the front. Scattered to numerous showers and isolated thunderstorms will continue into Friday, with the highest coverage in the mountains.
Upper-level ridging will begin to break down tonight, allowing for shower and thunderstorm chances to begin increasing into the afternoon hours of Friday.
The ridge still to the west will continue propagating eastward and should amplify over the weekend directly over the peninsula.
333 PM CDT Thu Apr 25 2024 - Severe weather potential late this afternoon and evening - Widespread rainfall through the weekend - Cooler temperatures this weekend The biggest concern in the short term will be the severe weather potential. Low level moisture has streamed into southwest Nebraska and even farther north into the Sandhills where dewpoints have increased into the low 50s. The upper level low will be slow to move out of the area and hang around through Friday night.
246 PM EDT Thu Apr 25 2024 High pressure over the Great Lakes will move east today, with dry weather continuing for the Ohio Valley. A warming trend will begin on Friday, as an upper level ridge moves east of the region. Precipitation chances will increase starting on Friday afternoon, with a warm front moving into the area. With that in mind, freezing temperatures are not generally expected, and temperatures cold enough for frost will only impact less than half of the forecast area tonight. At 12Z Friday, high pressure will have moved east into New England, and a mid-level ridge axis will be just upstream of the ILN CWA. This leaves us in a warm airmass with strong southerly flow as ridging moves in aloft.
Winds are generally calm or slightly out of the north at the surface increasing in speed as you go up in elevation, which is helping to keep cooler air flowing into the region. Will continue with the lower end precipitation chances on Friday morning/afternoon with the best chances to see light rain or drizzle south of I-40. Even with the more cloudy skies and rain chances, temperatures on Friday will be similar to today as winds turn more southerly with the boundary drawing up warmer air from the Gulf.
(Tonight) An upper level low across the Western Plains will strengthen and shift eastward this evening.
(Now through Friday) Upper ridging will slowly build eastward during the overnight hours as the axis of an upper level trough swings into the Plains. Current conditions across the forecast area are on the warm side, as temps have risen into the lower to mid 80s under partly cloudy skies. The upper ridge will strengthen a bit on Friday morning before it begins to exit the area as the trough to our west slides eastward. Seasonably warm temperatures are expected again on Friday, as highs warm into the lower to mid 80s.
However, as the surface front lifts northward as a warm front later today through the overnight, a slight chance of showers or a storm remains in the forecast for far western counties this afternoon. Temperatures will be mild overnight with the warm front moving northward, ranging from the mid 50s north to the lower 60s south. The old surface boundary will still be hanging around as a wedge of cooler air tries to push westward from northern Georgia. Under partly cloudy skies, we'll start to feel more like summer as highs reach the low to mid 80s, approaching the upper 80s in Pike and Barbour Counties.
1257 PM EDT Thu Apr 25 2024 Today will be dry and sunny, but cooler than normal.
A low pressure system moving into the Pacific Northwest coast today is setting up southwest flow over the region.
253 PM EDT Thu Apr 25 2024 High pressure will build across the region through Friday night then slowly exit to the south and east through the weekend.
1254 PM EDT Thu Apr 25 2024 High pressure over the Great Lakes will bring dry weather to the area today. A warming trend will begin by the end of the week, as an upper level ridge moves east of the region, with precipitation chances developing by Friday afternoon.
High pressure will remain in control at the surface, with upper ridging aloft. A warm front will approach central Indiana during the day. Isentropic lift will increase ahead of the warm front, and some upper level energy moving in behind the exiting upper ridge will add to the forcing. Temperatures will be warmer, with highs mainly in the 60s.
(Through tonight ) Some convection continues across far NE OK this afternoon along and just north of a surface warm front. (Tomorrow through Thursday) Convection will be ongoing Friday morning, however the severe threat will lessen through the morning as the low level jet subsides.
150 PM EDT Thu Apr 25 2024 High pressure will dominate the eastern United States through the weekend. High temperatures will be slightly cooler on Friday compared to today, with highs ranging from the mid 60s to the mid 70s.
A cold front will bring a chance for light rain beginning tonight, with strong winds Friday night. (This evening through Friday) Cloudy conditions continue, with breezy to gusty northwest wind this afternoon and evening as the upper level pattern continues to shift behind the low pressure center's passage. An additional trough passes through the area overnight, bringing widespread drizzle chances with light rain possible on higher elevations and along the coast.
1201 PM EDT Thu Apr 25 2024 Weak high pressure will build in today while a front stalls to our south.
136 PM EDT Thu Apr 25 2024 High pressure will build into the region today with the remnants of a frontal boundary to our south.
1022 PM EDT Thu Apr 25 2024 High pressure will continue across the region through Friday night, resulting in clear skies, light winds, and comfortable temperatures.
749 PM EDT Thu Apr 25 2024 High pressure will build into the region today with the remnants of a frontal boundary to our south.
Convection initiation is occurring this afternoon off the higher terrain in southeast Montana and south Dakota, though a few of these storms may develop closer to the Yellowstone River Valley.
(The rest of tonight) Scattered light showers have developed this evening as an increasing low level jet provides ascent atop a nearly stationary warm front draped from near Ponca City to Tulsa to Fort Smith. This precip will act to reinforce the cool side of the boundary and latest observational trends have shown the warm front beginning to retreat somewhat to the southwest as these showers have developed. Where the warm front ends up will delineate what happens with storms later tonight and into tomorrow morning. In the warm sector, to the west and southwest of the warm front, Storms will likely be severe, with damaging wind gusts and large hail possible. Bowlan (Tomorrow through Thursday) Convection will be ongoing Friday morning, however the severe threat will lessen through the morning as the low level jet subsides.
704 PM CDT Thu Apr 25 2024 Scattered showers and isolated thunderstorms will be possible this evening, mainly to the north of Memphis ahead of a slow moving warm front. After the warm front moves north of the Mid- South, warmer and more humid conditions will spread into the region on Friday and continue through the weekend.
Temperatures have fallen some this evening with readings mainly in the low 60s at this hour. This was anticipated as a result of the substantial layer of dry air in the lower portions of the atmosphere, specifically around 800 mb. For tomorrow, expect warmer temperatures behind the passage of a warm front and as warm air advection returns from the south/southeast. Meanwhile, surface observations show a warm front to our south over central MS and AL. (Friday Night through next Thursday) An overall quiet pattern for Middle TN looks to set up this weekend as ridging builds overhead, allowing temperatures to warm into the mid-80's.
644 PM CDT Thu Apr 25 2024 (Through tonight ) Some convection continues across far NE OK this afternoon along and just north of a surface warm front. (Tomorrow through Thursday) Convection will be ongoing Friday morning, however the severe threat will lessen through the morning as the low level jet subsides.
Current forecast is on track with dry high pressure in place. High pressure ridging across the area will keep conditions dry across the waters through the period.
(Tonight) An upper low moving to the NE over the Front Range was in part helping to amplify upper ridging along the greater Mississippi Valley.
910 PM CDT Thu Apr 25 2024 Axis of the upper level ridge sits directly overhead of the Four State Region this evening as upper level cirrus flows eastward across east Texas, embedded in the upper ascent across central Texas. Upper-level ridging will begin to break down tonight, allowing for shower and thunderstorm chances to begin increasing into the afternoon hours of Friday.
742 PM EDT Thu Apr 25 2024 (Through Friday) A stationary front just north of the forecasting region located in GA alongside some weak upper level troughing is causing some light westerly winds to prevail across the forecasting area today. Minimum temperatures are expected to go to the low 60s in AL, GA, and Fl counties, with the potential for overnight-to-early-morning fog development occuring at PCB and TLH. Maximum temperature should reach in the low 80s around PCB, and upper 80s at inland FL, AL, and GA counties.
912 PM EDT Thu Apr 25 2024 High pressure over the Great Lakes will move east today, with dry weather continuing for the Ohio Valley. A warming trend will begin on Friday, as an upper level ridge moves east of the region. Precipitation chances will increase starting on Friday afternoon, with a warm front moving into the area. With that in mind, freezing temperatures are not generally expected, and temperatures cold enough for frost will only impact less than half of the forecast area tonight. At 12Z Friday, high pressure will have moved east into New England, and a mid-level ridge axis will be just upstream of the ILN CWA. This leaves us in a warm airmass with strong southerly flow as ridging moves in aloft.
Easterly winds average 10 to 15 knots through the BL, then back to the northeast in the lower troposphere and to the northwest in the middle/upper levels. From synopsis, gentle to moderate breezes will prevail in the near term as an Atlantic ridge extends westward across Florida. This high will be subsumed by a larger high spreading into the western North Atlantic over the next couple of days.
550 PM CDT Thu Apr 25 2024 (Tonight) An upper level low across the Western Plains will strengthen and shift eastward this evening.
659 PM CDT Thu Apr 25 2024 - Severe weather potential late this afternoon and evening - Widespread rainfall through the weekend - Cooler temperatures this weekend The biggest concern in the short term will be the severe weather potential. Low level moisture has streamed into southwest Nebraska and even farther north into the Sandhills where dewpoints have increased into the low 50s. The upper level low will be slow to move out of the area and hang around through Friday night.
The highest probabilities exist across northwest Minnesota and south of Highway 2 in North Dakota. Deep mixing today brought the higher wind gusts to 30 to 40 mph and drier air (RH values below 30%) down to the surface for a Red Flag warning to be issued for our Minnesota counties. Tonight into early tomorrow morning the first low pressure system will ejects into the Central Plains and slowly moves northeast to increase cloud cover over our region.
710 PM EDT Thu Apr 25 2024 (This afternoon through Friday) Models show high pressure/mid level ridging dominating the weather pattern across the region. The ridge gradually shifts eastward through the weekend with overall subsidence and dry conditions prevailing. Afternoon temperatures will again range from the lower 80s near the east coast to the mid to upper 80s over interior areas. Reinforcing high pressure is seen in models arriving on Friday, which will increase pressure gradients across Soflo. Given the continued influence of mid-lvl ridging, rainfall is once again not expected.
A few showers will remain into Friday as an upper trough remains over the region.
With marine moisture being well mixed into the low levels of the atmosphere, light fog or haze may slightly limit visibility at times.
The highest probabilities are over the foothills/mountains where the NBM has a 20 to 40% chance of 0. Highest snow totals will be along the highest peaks south of HWY 50 where the NBM has a 40-60% chance of 2. By the weekend, dry weather returns as heights begin to increase and weak ridging moves in.
A robust upper-level low is progressing eastward toward the Oregon coast tonight, sustaining widespread showers and isolated thunderstorms along a cold front across much of the forecast area. The cold front recently passed through the Boise Metro area around 8 PM, bringing light rain and gusty winds reaching up to 40 MPH. Cold front bringing widespread showers/weak thunderstorms moving west to east through E Oregon and SW Idaho tonight. Cold front/showers bringing local MVFR conditions, gusty winds, and bursts of precip tonight into early Fri. Cold front bringing rain showers, outflow wind gusts to 20-30 kt tonight.