Aikyam-Lab/Synoptic-Bench huggingface dataset:
Dry and sunny conditions are expected to prevail through tomorrow despite this feature, and the only noticeable change will be temps a couple of degrees cooler across SE AL and SW GA compared to FL.
135 PM EDT Thu May 22 2025 Low pressure slowly crosses the region, bringing windy, cool weather with showers at times.
342 PM CDT Thu May 22 2025 - Isolated to scattered thunderstorms late tonight - Severe thunderstorm chances Friday evening - Cooler temperatures for Memorial Day weekend The main concern in the short term will be the chance for isolated to scattered thunderstorms late tonight. Convection after midnight is expected to develop as a SW trof translates eastward.
High pressure then builds back in for the weekend, bringing a return to southeast boundary layer flow. Scattered showers and a few thunderstorms are near KPGD this afternoon, so could have brief impacts there, otherwise chances are on the low side for other sites.
- Strong to severe storms are possible through this period as well, but the overall severe potential remains on the low end. An unsettled pattern sets up for the holiday weekend as the western ridge breaks down and several waves of energy eject across the Plains.
Updated at 1014 AM CDT Thu May 22 2025 - Cooler and drier weather will persist through Friday.
1238 PM CDT Thu May 22 2025 (Rest of Today and Tonight) A cold front was continuing its track southward this morning through the TN Valley as temperatures at 10 AM were confined to the upper 60s north of the TN river and in the upper 70s to the south of the river.
1242 PM EDT Thu May 22 2025 An upper low pressure center will remain over the Great Lakes Region today and tomorrow keeping precipitation chances in the forecast through the beginning of the weekend.
1227 PM CDT Thu May 22 2025 Updated at 1227 PM CDT Thu May 22 2025 - Cooler and drier weather will persist through Friday.
In the wake of the cold front, cool and dry continental air is being ushered in from the NE along a ridge of high pressure building over the SW CONUS.
Strong zonal flow remains in place across the central and southern CONUS, with a narrow, but amplified omega ridge extending well into Canada.
Cool north flow with relatively moist conditions in the lowest 9. Stacked low pressure rotates in place over the eastern Great Lakes today as a departing upper jet streak exit region orphans it off. Breezy wind around 15 to 25 mph maintains a feed of cool air from the northwest, keeping temps mainly in the lower to mid 50s. Clouds will remain pervasive through the night holding lows in the lower 40s. The low releases eastward and gets absorbed into a late season nor'easter on Friday. By this weekend weak geopotential height rises will commence over the area which should allow upstream high pressure and drier air to nudge in from the west.
931 PM EDT Thu May 22 2025 Low pressure will move up the Atlantic coast toward New England through Friday.
The H500 hand analysis map this morning has a blocky/omega pattern across the high latitudes transitioning to a more progressive one across the CONUS. The blocky high latitude pattern will fold southward by tomorrow evening as an upstream trough begins to form over the Intermountain West. This will begin to shift more dynamics and elevated moisture into our CWA by the weekend and bring slightly cooler temperatures and slightly higher precipitation chances.
620 PM CDT Thu May 22 2025 - Isolated to scattered thunderstorms late tonight - Severe thunderstorm chances Friday evening - Cooler temperatures for Memorial Day weekend The main concern in the short term will be the chance for isolated to scattered thunderstorms late tonight. Convection after midnight is expected to develop as a SW trof translates eastward.
619 PM CDT Thu May 22 2025 Updated at 616 PM CDT Thu May 22 2025 - Cooler and drier weather will persist through Friday.
607 PM CDT Thu May 22 2025 (This evening through Friday) A secondary push of cooler and drier air is filtering southward across Central Alabama behind a dry surface front that is currently near the I-85 corridor. Temperatures overnight will range from the mid to upper 50s north to the lower 60s south. Temperatures will remain a bit cooler to the north in the upper 70s, while south of the front will be warmer near 90 degrees.
Warmer and drier conditions develop across Western Washington through the end of the week as high pressure builds over the region.
(Tonight) A cold front was dropping southeast into TN and southern MO early this evening as WNW 5h flow persists.
642 PM EDT Thu May 22 2025 Upper low pressure center will remain over the Great Lakes today and tomorrow keeping precipitation chances in the forecast through the beginning of the weekend.
Breezy afternoon conditions prevail today and Friday as a trough lingers over the northwestern U. An additional weak system pushes into the region over the weekend bringing a chance for showers over the high terrain and cooler afternoon temperatures area-wide.
High pressure then builds back in for the weekend, bringing a return to southeast boundary layer flow.
641 PM CDT Thu May 22 2025 (Tonight through Friday night) Key Messages: - Moderate to Major Risk of Heat-Related Impacts - Low chance for showers and thunderstorms tonight across the Brush Country, Rio Grande Plains and Victoria Crossroads A mid to upper level ridge will begin to move into the region tonight and gradually begin to gradually build tomorrow. Daytime highs tomorrow will climb into the low to mid 90s across the Coastal Bend and Victoria Crossroads and upper 90s to near 102 degrees across the Brush Country. Tomorrow's heat index will peak from 100-111 degrees across South Texas as the warm temperatures interact with the high dewpoints, therefore, there will be a moderate to major risk for heat-related impacts.
902 PM EDT Thu May 22 2025 An upper level low will shift slowly east across the Great Lakes today into Friday. Northwesterly winds persist tonight as a low pressure system remains to the northeast. Lows will be in the lower to mid 40s.
209 PM PDT Thu May 22 2025 High pressure aloft will weaken with a low pressure system moving inland through California on Friday night.
639 PM CDT Thu May 22 2025 Updated at 638 PM CDT Thu May 22 2025 - Cooler and drier weather will persist through Friday.
With the drier airmass over the region with PWATs under 1 inch, low temps tonight will drop into the lower to mid 60s most areas. The drier airmass and clearing skies will support low temps in the lower 60s inland areas, with upper 60s/near 70F along the Atlantic Coast. Drier airmass will support mostly sunny skies on Friday with the westerly steering flow bringing a return to above normal temps with highs in the lower to middle 90s inland, while an East Coast sea breeze will press inland to the I-95/US-17 corridors with highs in the upper 80s/near 90F along the Atlantic Coast.
540 PM CDT Thu May 22 2025 (Tonight through Friday night) Ridging aloft will continue to maintain dry conditions throughout the short term (through Friday night). During the day Friday, am expecting mostly clear skies with temperatures inland reaching the low to mid 90s east of I-69 E and mid to upper 90s to the west, which is slightly above average for this time of year.
A trough complex over the Atlantic Coast has resulted in the Atlantic ridge remaining out to sea and a loose pressure field across the Keys. While the lower level ridge is nearby to the south, mid and upper level flow is zonal.
High pressure across the region today has brought some of the warmest temperatures of the season along with some breezy afternoon winds. With very little cloud cover and light winds expected overnight, we should radiate pretty well and overnight lows will drop down into the 30s across the higher terrain and in the 40s- 50s through the rest of the forecast area.
(This evening through Friday) Key Messages - A weak cold front Friday morning will bring little to no rainfall. - A cooler and drier airmass will be reinforced in north Georgia. The forecast area will remain within northwest flow aloft, and a weak disturbance/dry cold front will approach the area tonight into Friday morning. A reinforcement of the cooler, drier airmass will arrive across north Georgia on Friday.
553 PM CDT Thu May 22 2025 (This evening through Friday night) Troughing from the Great Lakes to Florida this afternoon with ridging over the Rockies. At the surface, the axis of high pressure extended from the Dakotas to Alabama. Temperatures in the area were in the middle and upper 80s, but dew points ranged from the middle 50s across northeastern sections of the area to the lower and middle 70s south of Lake Pontchartrain. This will bring warmer overnight lows across northern sections of the area as compared to this morning. High temperatures tomorrow are likely to be a couple degrees warmer than today. Similarly, overnight lows tomorrow night will be a couple degrees warmer than tonight in most areas.
This low- impact pattern will keep temperatures near to above normal for this time of year (with a gradual warming trend as the pattern gradually becomes more ridge dominated), and also provide a few periods of shower and thunderstorm chances. An weak upper trough passed over the area early this morning, and is now passing to the east.
Updated at 1112 PM CDT Thu May 22 2025 - Cooler and drier weather will persist through Friday. High pressure will weaken Friday night into Saturday as a short wave trough spins around the apex of a ridge to our west. This will lift a warm front north into the region and bring periods of showers and thunderstorms. Highs Saturday will be in the lower 70s.
A broad area of two upper level lows will persist over the great lakes region today. Cloud cover and cooler air will lead to high temperatures only reaching into the 40s. The low will shift to the NE CONUS and could let some drier air move over the central Lk MI coast and adjacent areas tonight.
- Cooler than normal weather continues through mid week, followed by a warming trend. Temperatures as of 2 AM are in the lower 40s north toe mid 40s south.
Some activity may persist into the afternoon, especially over eastern parts of the area, and continued stratus will keep temperatures on the cooler side for much of the area. On Saturday, most areas will start off dry in the morning, with increasing coverage of showers and thunderstorms through the afternoon and evening as an upper trough approaches from the west.
(Today through Saturday) A mid-level ridge is expected to continue to influence the weather for Deep South Texas and the Rio Grande Valley for the short term forecast period. At the surface, southeasterly winds will also continue to persist through the period with some gusty winds possible due to the pressure gradient between the high pressure over the Gulf and the low pressure over the Sierra Madre. As for the temperatures, the highs for today are expected to be in the 90s for most of Deep South Texas and the Rio Grande Valley, while areas along the coast would be in the upper 80s. The high temperatures for Saturday are expected to be similar, except that some parts of the Upper Valley could be in the triple digits. As for the low temperatures for tonight, they are expected to be in the 70s.
A upper level low pressure system will track across the great lakes Friday. A mixture of scattered light showers, drizzle, and mist continues into the evening as stacked low pressure remains in place over southern Ontario. Some clearing skies possible late tonight mainly over the southern CWA as the main surge of drier air pushes into northern IN/OH; however with continuing cool cyclonic flow below the upper trough still in place overhead, low moisture is not expected to be fully scoured out resulting persistent cloud cover through Friday.
Issued 350 AM CDT Fri May 23 2025 Today through Saturday: High pressure will slowly move southeast toward the region during this period. Highs in the lower to middle 60s are expected well inland each day, with 50s closer to the lake.
Weak northwesterly flow will help advect in a cooler airmass keeping afternoon temperatures in the mid to upper 70s.
Temperatures will remain several degrees below normal with afternoon highs in the low to mid 60s. Weak high pressure will build down into our area tonight and then remain in place across the Ohio Valley into Saturday.
After this low moves through, high pressure should dominate the pattern, with strong heating making for some unstable conditions, so the slight chance continues for only the rough terrain. Wind will be even weaker on Fri compared to today as the high pressure strengthens.
Cool and damp weather continue through the period as the trough pattern continues to dominate the weather pattern. Isolated rain showers and drizzle continue across the region tonight as the surface and mid level low pressure system centered over western Lake Ontario continues to spin in place. This feature, combined with NW flow providing enhanced moisture from the lakes and moisture wrapping around the broad trough pattern, will kick off another round of widespread rain showers across the region today. Saturday will see slightly warmer temps, with a few valley spots climbing into the upper 50s. Friday night lows will remain in the low to mid 40s.
Temperatures overnight to drop into the lower 40s. upper low to move further east over the Great Lakes, but still keeping us in cyclonic flow aloft. This will bring slightly cooler than normal and mostly dry conditions for most.
Friday Night-Saturday: As the ridge begins to move eastward, rain chances will return as southerly/southwesterly flow brings moist air into the region.
At the surface, broad low pressure is along the front range of the Rockies.
Dry and sunny conditions are expected to prevail through tomorrow despite this feature, and the only noticeable change will be temps a couple of degrees cooler across SE AL and SW GA compared to FL. With the dry airmass in place, rain chances are near zero through the beginning of the weekend and the hot temperatures from Friday afternoon will continue into Saturday with highs likely in the mid 90s and heat indices around 100 in some of the warmer locations.
116 AM EDT Fri May 23 2025 - Much cooler than normal temps linger into Saturday night, then gradual recovery. Pattern/synopsis: Primary upper low center is just north of eastern Lk Superior, and is moving southward. Forecast: Upper low swings south and then se-ward, ending up over northern Lk Huron Fri morning. It shears out eastward on Friday, with a substantial trof lingering back over OSC-PLN-ERY by late afternoon. However, as the upper low approaches and especially departs, deep moisture will be pushed back to the sw for a period. Upper low merrily spins over northern New England this weekend. Lingering upper troffing will contribute to a somewhat slow recovery from the chilly wx. And cloud cover will be slow to diminish, as the low levels remain somewhat soupy.
The highest chance of storms with this will be mainly along and west of the Miss River starting after noon around Houma or even up toward New Orleans and spread NW toward Baton Rouge during the afternoon hours. This activity will be isolated but could be strong or severe with wind and hail being the highest risk.
1159 PM CDT Thu May 22 2025 Updated at 1153 PM CDT Thu May 22 2025 - Cooler and drier weather will persist through Friday. High pressure will weaken Friday night into Saturday as a short wave trough spins around the apex of a ridge to our west. This will lift a warm front north into the region and bring periods of showers and thunderstorms. Highs Saturday will be in the lower 70s.
The mid and upper level pattern will be characterized by a NW flow with a closed low over the Northeast and a ridge over the Plains.
- Cold front pushes south through the area Saturday, bringing several days of below normal temperatures and precipitation chances. Short range ensembles agree this lee cyclone will continue to deepen daytime Friday, resulting in a slight uptick in winds and a stubborn stratus deck across much of the area through at least midday. This will support a wide range in afternoon temperatures with highs in the low 90s southwest to the upper 60s/near 70 northeast. Breezy northeast winds, overcast skies, and well-below normal temperatures are likely, with afternoon highs ranging from the low 60s north to the low 70s south. With the cold front pushing any/all instability southward into TX/OK, convection appears unlikely, with all CAMs suggesting scattered light rain showers will be prominent.
(Today through Saturday Night) The heat and humidity continues today and tomorrow: high temperatures in the low to mid 90s (cooler at the coast), low temperatures in the mid to upper 70s (warmer at the coast). Ridging builds aloft today into tomorrow likely limiting any precipitation, but wouldn't be totally surprised if an isolated shower develops during peak heating hours near the coast.
High temperatures this afternoon will top out in the low to mid 90s once again. A ridge will build in going into the weekend, but as of today and Friday we remain in northwesterly flow aloft. Maybe if we get enough people to wash their cars we'll have a better shot at it! Expecting a similar day on Friday with high temperatures in the low to mid 90s. As far as low temperatures go, expect lows mainly in the low to mid 70s.
1210 AM CDT Fri May 23 2025 - Isolated to scattered thunderstorms late tonight - Severe thunderstorm chances Friday evening - Cooler temperatures for Memorial Day weekend The main concern in the short term will be the chance for isolated to scattered thunderstorms late tonight. Convection after midnight is expected to develop as a SW trof translates eastward.
1155 PM CDT Thu May 22 2025 (Tonight) A cold front was dropping southeast into TN and southern MO early this evening as WNW 5h flow persists.
146 AM EDT Fri May 23 2025 High pressure lingers over the area through Saturday keeping mostly dry conditions around.
1206 AM CDT Fri May 23 2025 (This evening through Friday) A secondary push of cooler and drier air is filtering southward across Central Alabama behind a dry surface front that is currently near the I-85 corridor. Temperatures overnight will range from the mid to upper 50s north to the lower 60s south. Temperatures will remain a bit cooler to the north in the upper 70s, while south of the front will be warmer near 90 degrees.
147 AM EDT Fri May 23 2025 A weak cold front will push offshore tonight, followed by building high pressure through Saturday.
Discussion: An upper level low will remain situated over the eastern Great Lakes and New England area through the period, keeping northwest flow overhead and a cool advection pattern in place in the low levels.
223 AM EDT Fri May 23 2025 Cool and dry high pressure will build from central Canada over the Mid Atlantic region into the weekend.
915 PM PDT Thu May 22 2025 Cooler with a deepening marine layer Friday into the weekend.
1249 AM CDT Fri May 23 2025 (Tonight through Friday night) Ridging aloft will continue to maintain dry conditions throughout the short term (through Friday night). During the day Friday, am expecting mostly clear skies with temperatures inland reaching the low to mid 90s east of I-69 E and mid to upper 90s to the west, which is slightly above average for this time of year.
(Today through Saturday) Key Messages: - Moderate to Extreme Risk of Heat-Related Impacts Over Portions of the Brush Country and Coastal Plains After a morning with patchy fog across the Coastal Plains, the mid to upper level ridge will build into the area today. Highs will climb into the mid 90s to the low 100s today. Please do not be fooled by the lack of the Heat Advisory product--temperatures will be quite warm and heat index values will make things feel even warmer.
Dry conditions will persist today as upper ridging builds over the central US. The question is does this complex make it intact to our area as it butts up against the strengthening ridge.
High stuff so not much of a sun blocker and the high clouds are thinning as they move southwest as well.
937 AM EDT Fri May 23 2025 Cool and dry high pressure will build from central Canada over the Mid Atlantic region into the weekend.
(Today and tonight) Subtle upper level trough set to move through today amid a robust NW flow regime, which has been keeping us rather breezy through this week. Cooler temps as well today just a few degrees below seasonal normals across the region.
Max temps under mostly sunny skies will push into the lower/middle 90s inland and upper 80s/near 90 along the Atlantic Coast.
Highs will be 5 to 10 degrees below normal for most of the Tennessee Valley despite dry weather and sunny skies as a trough sits over the Eastern U. Discussion: An upper level low will remain situated over the eastern Great Lakes and New England area through the period, keeping northwest flow overhead and a cool advection pattern in place in the low levels.
550 AM CDT Fri May 23 2025 Updated at 550 AM CDT Fri May 23 2025 - Cooler and drier weather will persist today. High pressure will weaken Friday night into Saturday as a short wave trough spins around the apex of a ridge to our west. This will lift a warm front north into the region and bring periods of showers and thunderstorms. Highs Saturday will be in the lower 70s.
Overnight lows are forecasted to range from the lower 70s to upper 70s areawide.
As these clouds and showers move in across the area, mostly cloudy skies will end up prevailing through the afternoon hours, and high temperatures will likely top out in the lower to middle 60s, or about 10 to 15 degrees below average for late May. The next disturbance will be this evening and into the overnight hours, sparking shower and thunderstorm activity over the high plains, which will likely clip areas southwest of the Nebraska Tri-Cities tonight.
341 AM PDT Fri May 23 2025 Cooler with a deepening marine layer into the weekend with night and morning coastal low clouds spreading farther into the valleys with slow or limited afternoon clearing near the coast.
641 AM EDT Fri May 23 2025 Cool and dry high pressure will build from central Canada over the Mid Atlantic region into the weekend.
625 AM CDT Fri May 23 2025 (Today through Saturday Night) The heat and humidity continues today and tomorrow: high temperatures in the low to mid 90s (cooler at the coast), low temperatures in the mid to upper 70s (warmer at the coast). Ridging builds aloft today into tomorrow likely limiting any precipitation, but wouldn't be totally surprised if an isolated shower develops during peak heating hours near the coast.
The overall pattern this morning is defined by a broad ridge of high pressure extending from the Desert Southwest into Texas, with a dry trough of low pressure moving into the West Coast.
DDV Issued 350 AM CDT Fri May 23 2025 Today through Saturday: High pressure will slowly move southeast toward the region during this period. Highs in the lower to middle 60s are expected well inland each day, with 50s closer to the lake.
628 AM CDT Fri May 23 2025 (Today through Saturday) Key Messages: - Moderate to Extreme Risk of Heat-Related Impacts Over Portions of the Brush Country and Coastal Plains After a morning with patchy fog across the Coastal Plains, the mid to upper level ridge will build into the area today. Highs will climb into the mid 90s to the low 100s today. Please do not be fooled by the lack of the Heat Advisory product--temperatures will be quite warm and heat index values will make things feel even warmer.
The weak trough that passed over the area last night and early this morning has moved to the east, but not before spawning a widespread cumulus field and a few showers east of the Cascades. A strong ridge will build into the region behind this departing trough, resulting in dry and warm weather through the holiday weekend.
(Rest of today through Saturday) Today will be one of the last sunny days for a few days, so get out and enjoy it! Probability for showers and thunderstorms increases tomorrow, with the arrival of a warm front from the south.
The holiday weekend is set to begin dry, with cooler than normal temperatures.