Aikyam-Lab/Synoptic-Bench huggingface dataset:
706 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.
930 PM EDT Thu Apr 25 2024 Radar showing some light returns to our southwest but obs not showing much reaching the ground so far and there is still significant dry low level air over our region, so the low PoPs mainly southwest zones that are in place for tonight look reasonable. 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.
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.
716 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.
pdf A weak cold front has stalled across the FL/GA line, increasing cloud cover for SE GA. Weakening high pressure to the south has allowed the Gulf coast sea breeze and Atlantic sea breeze to push inland. Temperatures will be in the mid to upper 80s inland with temperatures in the low 80s along the coast.
228 AM EDT Fri Apr 26 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. High temperatures reach the low 80s.
An upper ridge axis gradually moving eastward over the region will allow afternoon highs to climb into the lower/mid 80s as well.
A persistent upper level ridge slides and builds along the US East Coast. Increasing clouds should keep slightly cooler conditions over the interior, but temperatures get toasty along the coast on Saturday. Afternoon highs warm up into the low 90s areawide while overnight lows stay in the 60s. High pressure ridge prevails across the Gulf waters through the period. Then, the interaction between the ridge and a disturbance moving north of the area could bring cautionary level winds to the waters for the weekend. High pressure continues to dominate across fire districts through the next several days.
300 AM EDT Fri Apr 26 2024 - Much warmer temperatures this weekend with highs around 80.
Low level jet ramps up tonight, with the nose of the low level jet exceeding 45 knots across the western Concho Valley and Big Country before sunrise. CAMs continue to show a small cluster of storms developing along the nose of the low level jet late Friday night into Saturday morning as the moisture rapidly returns and will include a low POP for this situation. Low end severe threat possible with these storms, both in the form of marginal hail and with some of these storms able to drag down some of the higher low level jet winds down to the surface.
A lull in precipitation will take place tonight and Friday morning before more windy, cooler, and unsettled conditions return as the second weather disturbance moves across Arizona.
1219 AM EDT Fri Apr 26 2024 High pressure will build across the region through Friday night then slowly exit to the south and east through the weekend.
100 AM CDT Fri Apr 26 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.
Current Water Vapor and upper air models show upper ridge over the great lakes and midwest regions, while upper low sits over northeastern CO this morning. At the surface, low pressure sits over the MT/ND border, with cold front running southwest through Wyoming. Upper low will swing into Nebraska today and up towards MN early Saturday. The northwest flow coupled with cloud cover and moisture will make for a cooler day, with highs in the mid 50s to mid 60s. Cooler air moves into the region for the rest of the weekend, with highs in the 40s and 50s for Sat/Sun.
324 AM EDT Fri Apr 26 2024 High pressure remains in control today with calm and dry conditions expected.
Moisture continues to pool across the CWA this evening, as a frontal boundary resides in the vicinity of the Highway 82 corridor. Lows will be slightly warmer than last night as they fall into the low and middle 60s.
339 AM EDT Fri Apr 26 2024 High pressure will shift to the east coast with a warm front lifting north through the area tonight. Precipitation chances will develop this afternoon, and increase tonight as the warm front moves through the region.
1243 AM CDT Fri Apr 26 2024 (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.
With the ridge overhead, expect warmer temperatures in the mid to upper 80s.
With the retreating dryline and breezy south winds continuing through the night, temperatures will only fall into the mid 60s across much of the area with slightly cooler conditions across the west, in the slightly drier air.
108 AM PDT Fri Apr 26 2024 Cooler weather along with periods of showers and thunderstorms will persist through early Saturday.
(Today through Saturday night) The axis of yesterday's trough is lifting over and out of the area this morning, leaving the Panhandles warm and dry. Main focus for the short term resides in Saturday, when a potent closed low near the Four Corners region provides stronger winds across the CWA, and perhaps some storms near the TX-OK border.
Current forecast is on track with dry high pressure in place.
247 AM EDT Fri Apr 26 2024 Ridge of high pressure will be over the coastal areas today as a weak front will be moving west of the area leading to a slight chance of showers in the northern CSRA and western Midlands.
This will ultimately lead to cooler temperature over northeast Georgia with highs in then mid 60s to low 70s as the low level cloud cover dominates.
1101 PM EDT Thu Apr 25 2024 High pressure will continue to build over the region into Saturday.
(Today through Saturday) Mid-lvl ridging will build towards the area over through Saturday maintaining the dry and stable airmass over South Florida. Strong high pressure over the NE US will build southward Friday into Saturday tightening the pressure gradient and resulting in breezy easterly flow developing over our area. Temperatures today through Saturday will be characteristic of a strong easterly regime with the warmest highs (generally upper 80s) over the Interior/west coast with cooler highs (generally low to mid 80s) over the east coast.
The approaching ridge axis and slightly increasing heights should keep any activity weak and isolated. Heights continue to rise tonight and Saturday as ridging remains across the eastern CONUS. Lows tonight will be in the low to mid 60s, with highs on Saturday in the upper 70s to mid 80s.
1240 AM CDT Fri Apr 26 2024 (This evening through Saturday) Surface boundary over south Arkansas was slowly lifting northward as a warm front this afternoon.
404 AM EDT Fri Apr 26 2024 High pressure will dominate the eastern United States through the weekend. Within a high amplitude mid-level ridge that will extend across the ern US, a 319-320 dam anticyclone at 700 mb will become firmly established over the Carolinas. A band of 700 mb-centered saturation and altocumulus will linger across the srn Middle Atlantic, in generally nly flow around the aforementioned anticyclone centered over the Carolinas.
124 AM EDT Fri Apr 26 2024 Radar showing some light returns to our southwest but obs not showing much reaching the ground so far and there is still significant dry low level air over our region, so the low PoPs mainly southwest zones that are in place for tonight look reasonable. 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.
1245 AM CDT Fri Apr 26 2024 (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.
317 AM EDT Fri Apr 26 2024 High pressure will be in control with dry weather through Friday. Northerly flow allows temperatures to fall below freezing again tonight.
Discussion: A surface warm front is located south of the area, across central AL and MS. Mid and high clouds will increase again overnight as the mid/upper level ridge axis moves east of the area.
Saturday looks mainly dry and increasingly warm and more humid as the stationary front lifts north as a warm front during the morning and southerly winds develop. 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.
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. The trough looks to be slow to exit Saturday morning with additional drizzle chances expected along with another round of light rain chances on higher elevations and along the coast.
1055 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. A secondary Low pressure system moves in from the Four Corners region into the High Plains Region later Saturday, bringing another round of widespread precipitation across western and north central Nebraska.
Light rain showers are possible today as a weak cold front moves through the region. (Today and tonight) An upper trough will progress from the Pacific Northwest through the Great Basin and and Desert Southwest through this evening. The upper feature will escort a weakening cold front through the Bay Area and Central Coast today with drizzle and/or light rain showers accompanying its passage through this afternoon. Temperatures will be seasonally cool with highs mostly in the lower to mid 60s. Lows tonight will be a bit cooler following the frontal passage with temperatures mostly in the 40-45 degree range except near 50 along the immediate coast and within the urban areas.
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.
112 AM EDT Fri Apr 26 2024 High pressure will continue across the region through Friday night, resulting in clear skies, light winds, and comfortable temperatures.
/issued 332 PM CDT Thu Apr 25 2024/ 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.
(Today and tonight) The Pacific front is expected to push the dryline east out of the forecast area this morning as the upper low ejects northeastward today. At the same time, the next upper low will be near the Four Corners region of the US with the jet approaching West Texas.
Currently - An average Atlantic ridge stretching across Florida and into the northeastern Gulf of Mexico is in the early stages of being absorbed by a large high over eastern North America spreading southeast and southwards. Meanwhile, troughing aloft is giving way to sharp ridging advancing eastward through the eastern United States and Gulf of Mexico. Another contributor has been the general lack of moisture with dew points remaining in the lower to mid 60s. Surface dew points are projected to remain in the lower 60s to mid 60s due to the incoming air being of modified continental origin. By late this weekend the high will have weakened some, but remain robust and centered off the Carolina Coast.
(Friday through Saturday night) A stalled and diffuse boundary near the FL/GA border will begin to dissipate through Friday as high pressure shifts to the northeast and wedges across the local area. Through Saturday, ridging will aloft will amplify along the eastern US. Subsidence associated with this feature will keep meaningful rain chances near nil; however, a weak coastal trough over the local waters may push a few sprinkles into the immediate coast on Saturday (kept pops silent <10% at this time). Combination of increasing cloud cover and the breezy, 10-15 mph, onshore flow, temps will trend from the mid 80s inland Friday to the low 80s Saturday while the coastal areas peak in the upper 70s to near 80 each day while overnight temps remain in the mild low/mid 60s.
556 AM EDT Fri Apr 26 2024 - Much warmer temperatures this weekend with highs around 80.
624 AM CDT Fri Apr 26 2024 (Today through Saturday) An established broad mid-level trough covering the western half of the nation with a ridge building from the NE Gulf of Mexico north along the eastern third CONUS looks to maintain a tight pressure gradient over Deep South Texas today and Saturday. A Wind Advisory has been issued for the Lower RGV 11 AM-7 PM Today with another probable wind advisory for Saturday with lager areal coverage as a broader and slightly stronger LLJ is shown by the latest model suite. A few light showers are possible early this morning with a weak disturbance passing overhead, otherwise moisture depth is limited and forcing of the low level moisture today or tomorrow is absent with a cold front and dryline remaining well north and west of the South Texas respectively.
Early this morning, a 50 kt LLJ is in place over eastern KS ahead of a deepening mid-level storm system that is ejecting out over the High Plains of Nebraska/Kansas. Dew points south of the warm front are in the mid to upper 60s. The warm sector of the system will continue to advance northward through the area this morning as the warm front passes to the north. Strong wind fields east of the upper low will lead to sufficient deep layer shear for severe weather, while 0-3km SRH values ranging from 150-200 m2/s2 point to a tornadic potential.
The combination of warm advection and a partly to mostly sunny sky will warm temperatures into the lower to perhaps middle 80s this afternoon.
626 AM CDT Fri Apr 26 2024 (Today and tonight) The Pacific front is expected to push the dryline east out of the forecast area this morning as the upper low ejects northeastward today. At the same time, the next upper low will be near the Four Corners region of the US with the jet approaching West Texas.
608 AM CDT Fri Apr 26 2024 (Today through Saturday night) The axis of yesterday's trough is lifting over and out of the area this morning, leaving the Panhandles warm and dry. Main focus for the short term resides in Saturday, when a potent closed low near the Four Corners region provides stronger winds across the CWA, and perhaps some storms near the TX-OK border.
645 AM EDT Fri Apr 26 2024 High pressure will dominate the eastern United States through the weekend. Within a high amplitude mid-level ridge that will extend across the ern US, a 319-320 dam anticyclone at 700 mb will become firmly established over the Carolinas. A band of 700 mb-centered saturation and altocumulus will linger across the srn Middle Atlantic, in generally nly flow around the aforementioned anticyclone centered over the Carolinas.
Ahead of the trough axis today a tightening pressure gradient will bring increased west to southwest winds to southeast Arizona, maximizing this afternoon and early evening. Trough timing is a bit late to be able to truly bring strong winds to the surface during better boundary layer mixing hours, but the pressure gradient should bring winds to near advisory criteria either way. An influx of Pacific moisture combined with cooling mid-levels associated with the crossing trough may produce a few showers late tonight, mainly across Pinal, Graham, and Greenlee counties. Winds should be lighter than today but still breezy, while a few diurnal showers should form over the Whites as the trough center passes aloft.
641 AM EDT Fri Apr 26 2024 (Today through Saturday) Mid-lvl ridging will build towards the area over through Saturday maintaining the dry and stable airmass over South Florida. Strong high pressure over the NE US will build southward Friday into Saturday tightening the pressure gradient and resulting in breezy easterly flow developing over our area. Temperatures today through Saturday will be characteristic of a strong easterly regime with the warmest highs (generally upper 80s) over the Interior/west coast with cooler highs (generally low to mid 80s) over the east coast.
644 AM EDT Fri Apr 26 2024 Ridge of high pressure will be over the coastal areas today as a weak front will be moving west of the area leading to a slight chance of showers in the northern CSRA and western Midlands.
Dry and warm atmosphere remains over the region while a frontal boundary sags into the Deep South tightening the pressure gradient between the persistent surface ridging over the area to produce occasionally gusty easterly winds today through this evening. A persistent upper level ridge slides and builds along the US East Coast. Increasing clouds should keep slightly cooler conditions over the interior, but temperatures get toasty along the coast on Saturday. Afternoon highs warm up into the low 90s areawide while overnight lows stay in the 60s. High pressure ridge prevails across the Gulf waters through the period. Then, the interaction between the ridge and a disturbance moving north of the area could bring cautionary level winds to the waters for the weekend. High pressure continues to dominate across fire districts through the next several days.
1003 AM EDT Fri Apr 26 2024 High pressure remains in control today with calm and dry conditions expected.
627 AM EDT Fri Apr 26 2024 High pressure remains in control today with calm and dry conditions expected.
Warm, breezy and humid conditions will spread into the Midsouth today, behind a warm frontal passage.
426 AM CDT Fri Apr 26 2024 - Periods of showers are likely (70-100%) today and tonight over most of the CWA, with the highest probabilities across central and eastern North Dakota.
951 AM EDT Fri Apr 26 2024 High pressure moves offshore today. A warm front attached to low pressure over the Great Lakes moves by Saturday.
645 AM EDT Fri Apr 26 2024 High pressure will shift to the east coast with a warm front lifting north through the area tonight. Precipitation chances will develop this afternoon, and increase tonight as the warm front moves through the region.
946 AM EDT Fri Apr 26 2024 High pressure will dominate the eastern United States through the weekend. Water vapor imagery this morning depicts mid-level ridging over the deep south/Midwest and wnwly flow over central NC. Given the cooler nely flow, highs should max out in the mid 60s to lower 70s this afternoon. OVernight lows will dip into the lower to mid 50s. Within a high amplitude mid-level ridge that will extend across the ern US, a 319-320 dam anticyclone at 700 mb will become firmly established over the Carolinas. A band of 700 mb-centered saturation and altocumulus will linger across the srn Middle Atlantic, in generally nly flow around the aforementioned anticyclone centered over the Carolinas.
635 AM CDT Fri Apr 26 2024 Warm, breezy and humid conditions will spread into the Midsouth today, behind a warm frontal passage.
616 AM CDT Fri Apr 26 2024 - Periods of showers are likely (70-100%) today and tonight over most of the CWA, with the highest probabilities across central and eastern North Dakota.
629 AM EDT Fri Apr 26 2024 High pressure remains in control today with calm and dry conditions expected.
WEATHER PATTERN OVERVIEW: Slight upper ridge remains over Montana as a series of low pressure systems spin through the central Rockies and lift across the Plains toward the upper Midwest.
243 PM EDT Fri Apr 26 2024 High pressure will dominate the eastern United States through the weekend. Light enely flow continues this afternoon as high pressure extends down into our area. Further southwest, a warm front draped across the TN valley continues to generate clouds and light rain mostly over the southern Appalachians. Overnight lows will dip into the lower to mid 50s. As the upper level ridge persists across the Mid-Atlantic region, dry weather is expected to continue over the short term period. At the surface, high pressure off the north Mid-Atlantic coast Saturday morning will continue to influence easterly winds on Saturday.