Aikyam-Lab/Synoptic-Bench huggingface dataset:
640 AM CDT Mon Apr 21 2025 Warm humid conditions are expected to persist through the day today as the high off to our east continues to funnel in onshore flow from the Gulf. A low that is moving towards Wisconsin has trailed a cold front through our northwestern peripheries, causing a thin line of rain showers.
The surface system responsible for this weekend's active weather has moved off to the east with high pressure and westerly wind streaming in behind it. We'll enjoy a day of high pressure today, with clearing skies and highs into the low 70s. Tuesday will have filtered sun and slightly warmer highs in the upper 70s to around 80 thanks to southerly flow.
601 AM EDT Mon Apr 21 2025 A cold front moves east across the area on Monday.
651 AM CDT Mon Apr 21 2025 An upper trough over the plains will lift rapidly out to the northeast today. Upper ridging over the southwest Atlantic and northeast Gulf will continue to suppress rain chances southeast of I-65 today. High temps will be in the low to mid 80s with lows in the low 60s inland to mid/upper 60s along the coast.
Across the east coast metro, temperatures are currently in the low to middle 70s, however temperatures across inland sections of our area (and away from maritime influences) are currently in the upper 50s to low 60s. (Today through Tuesday) Strong deep-layer ridging will gradually weaken as the Southern Stream spreads through the Gulf over the coming days. However, low/mid level flow will remain generally easterly as the ridge axis elongates through the western Atlantic. Lows will drop into the low 60s across the interior and west coasts (away from the easterly maritime influence).
The highest humidities are through north central, central and south central Oklahoma early this morning so these areas will be the most likely to experience areas of fog.
Upper level low moving north thru western Wisconsin this early morning with sfc features stalled out over the forecast area as it does. and this trough will move east into W ND late tonight/evening and move east and then northeast thru the fcst area 06z-18z period Tuesday.
The cold front is just to the west of the Mississippi River, and a line of showers and storms is located along it.
1000 AM EDT Mon Apr 21 2025 High pressure will linger across the region into Tuesday. Another slow moving cold front may reach the region by the weekend. Strong subsidence will maintain our stretch of rain-free conditions although a fair amount of high level cloud cover will continue to cycle through the region along the western edge of the upper level ridge, leading to overall partly sunny/partly cloudy conditions. High temperatures today will warm back into the lower to middle 80s away from the coast, with some upper 80s possible in inland southeast Georgia. Deep layered ridging will being to lose its grip over the forecast area as it pivots eastward into the Atlantic.
Inland areas will be warmer than normal through Tuesday before flipping to cooler than normal late week. High temperatures are expected to approach 80 degrees in the warmer inland areas such as Santa Rosa, Livermore, and San Jose. Despite the clouds mixing out, coastal areas will remain in the cooler marine layer air, with more seasonal temperatures generally in the 60s.
Dry and tranquil conditions are expected this week due to high pressure aloft. This set up will bring slightly above normal temperatures, seeing highs in the high 80s to low 90s in the Desert Southwest (~2-6 degrees above normal).
1100 AM EDT Mon Apr 21 2025 High pressure will bring dry conditions with less wind today. Scattered showers return tonight into early Tuesday as a warm front moves through.
1015 AM EDT Mon Apr 21 2025 - A cold front will bring showers and possibly thunderstorms this afternoon and evening.
644 AM EDT Mon Apr 21 2025 (Today and tonight) An H5 ridge off the east coast of Florida will continue to keep showers and storms away from the area again today. High clouds will continue to stream through the region thanks to southwesterly flow on the western side of the ridge.
This activity was occurring in the vicinity of a slow-moving frontal boundary that extended from N LA across E TX to west of Houston, and aided by a passing impulse aloft traversing the base of a trough lifting NE across the midwest.
* A shift to cooler and potentially wetter more active weather starts late in the week and continues into the weekend.
Hernandez Previous Discussion: /Through Tuesday Morning/ High pressure will be in control, leading to no significant weather expected through Tuesday morning. This morning's sunrise temperatures in the lower 50s will give way to highs in the upper 70s to mid 80 with mostly clear skies. The area of high pressure will loosen it's grip Monday night as it gradually shifts eastward.
At the surface, an area of high pressure will move off to the north and east, turning our winds from light and variable to south/southeasterly at 5 to 15 mph today and tonight. With south to southeast flow in the low levels, we may have enough moisture return to see a few morning low clouds south of I-20 early Tuesday morning.
608 AM CDT Mon Apr 21 2025 (Today through Tuesday) Shower and thunderstorm chances will slowly begin to increase by sunrise, as the slow moving cold front finally works into the region. It still appears as if this front will eventually stall out by Tuesday, more or less sandwiched between the ridge to the east, and the trough to the west. Otherwise, look for afternoon highs today to range in the low to upper-80s, before dropping slightly tomorrow into the upper-70s to low-80s.
734 AM EDT Mon Apr 21 2025 - A cold front will bring showers and possibly thunderstorms this afternoon and evening.
631 AM EDT Mon Apr 21 2025 - Breezy and cooler today.
An upper trough will approach the area Tuesday evening with the trough axis moving overhead Tuesday night.
As winds and cloud cover decrease Monday night, a chilly morning is forecast for Tuesday, with with portions of the lowlands dropping to near 32 degrees. A trend to warmer and drier conditions is in store for the middle of the week.
At this time the cold front is about to enter Kent County from the west and a final shot of rain followed by at least a couple hours of stronger gusts can be expected with and immediately behind this feature. A low pressure system moving into Wisconsin today is the driver of our precipitation, with a cold front crossing the area this morning bringing the more widespread precipitation.
526 AM MDT Mon Apr 21 2025 - Breezy winds today will increase for Monday with gusts peaking around 30-45 mph - A Wind Advisory is in effect Monday for the Snake River Plain, Eastern Magic Valley, and Raft River Region from 9AM-9PM MDT A few isolated showers will remain today, mainly across the highlands. Temps are a touch warmer as well, closer to normal. A few showers will likely develop Tuesday night ahead of the next low pressure system.
1050 AM EDT Mon Apr 21 2025 A cold front moves east across the area on Today.
536 AM MDT Mon Apr 21 2025 - Elevated fire weather conditions likely across south central SD this afternoon - Showers and thunderstorms possible this afternoon - Active pattern will bring occasional precipitation chances through this week Current water vapor imagery depicts well defined upper low centered over MN/WI with convection firing along a cold front that arcs from the Great Lakes into TX/LA. The higher elevations of the Black Hills could see a rain/snow mix this evening as colder air filters into the region - however not anticipating any accumulations.
655 AM EDT Mon Apr 21 2025 High pressure will linger across the region into Tuesday. Another slow moving cold front may reach the region by the weekend. Strong subsidence will maintain our stretch of rain-free conditions although a fair amount of high level cloud cover will continue to cycle through the region along the western edge of the upper level ridge, leading to overall partly sunny/partly cloudy conditions. High temperatures today will warm back into the lower to middle 80s away from the coast, with some upper 80s possible in inland southeast Georgia. Deep layered ridging will being to lose its grip over the forecast area as it pivots eastward into the Atlantic.
418 AM CDT Mon Apr 21 2025 An upper trough over the plains will lift rapidly out to the northeast today. Upper ridging over the southwest Atlantic and northeast Gulf will continue to suppress rain chances southeast of I-65 today. High temps will be in the low to mid 80s with lows in the low 60s inland to mid/upper 60s along the coast.
Gradually warmer temperatures and quiet weather are anticipated to begin early this week.
Skies are mostly clear this morning after last night's cold front with clouds mainly limited to the mountains. The exception will be in the northernmost portions of the west-central mountains where there will be a 20% chance of snow showers as a trough moves by to our north.
(This afternoon through Tuesday Night) A low pressure system is currently situated near the Great Lakes, which features an elongated cold front stretching all the way into southeast Texas. Additional storm chances are forecast through the afternoon, but these are contingent upon sufficient heating ahead of the cold front. Highs will be in the low 70s to low 80s once again, depending on clouds/rain. Since the primary upper-level disturbance should deflect well to our northeast around a subtropical ridge to our southeast, best rain chances should remain south and east near the stalling, more diffuse front.
Meanwhile, the associated weak cold front will continue to stall across our forecast area looking ahead into Tuesday.
This is ahead of an advancing and weakening cold front entering western KY, TN and northwest MS.
214 PM EDT Mon Apr 21 2025 A cold front will push through the area this afternoon, exiting by evening.
Conditions will begin to dry out today as a trough exits.
Daily southwest winds each day, potentially increasing by the end of the week as low pressure forms over the Great Basin.
The stalled front close to the coast will move back north as a warm front tonight, leading to a rapid return of low level moisture. Farther west, dry line convection looks to develop late Tuesday afternoon across west Texas and the Trans Pecos, as well as in the higher terrain of Mexico.
This morning's 12z sounding has continued the trend of dry air throughout our profile and the very limited moisture we do have, being contained in the lower levels. From synopsis, fresh to occasionally strong easterlies will modestly slacken this afternoon as high pressure weakens slightly. Even though the high weakens slightly today, expect this high to continue to meander for the next several days north of The Bahamas leading to peaking winds and night and lulling during the day.
145 PM EDT Mon Apr 21 2025 - A cold front will bring showers and possibly thunderstorms through the evening.
Another warm day is anticipated on Tuesday with highs in the low to mid 80s.
I went ahead and added mention of sprinkles to our western locations trough the midday period (18Z). Upper level low moving north thru western Wisconsin this early morning with sfc features stalled out over the forecast area as it does. and this trough will move east into W ND late tonight/evening and move east and then northeast thru the fcst area 06z-18z period Tuesday.
Later tonight, increasing low-level southerly flow will pull the frontal zone presently along the Gulf coast back northward as a warm front which will slowly advance into North Texas during the daytime.
1051 AM MDT Mon Apr 21 2025 - Elevated fire weather conditions likely across south central SD this afternoon - Showers and thunderstorms possible this afternoon - Active pattern will bring occasional precipitation chances through this week Current water vapor imagery depicts well defined upper low centered over MN/WI with convection firing along a cold front that arcs from the Great Lakes into TX/LA. The higher elevations of the Black Hills could see a rain/snow mix this evening as colder air filters into the region - however not anticipating any accumulations.
(Today through Tuesday afternoon) WV imagery this morning shows yesterday's upper trough ejecting into the Great Lakes region, leaving zonal flow over West Texas and Southeast New Mexico in its wake. Today, flow aloft will begin transitioning to southwest with the approach of a Pacific trough. Tonight, a vigorous 40+kt LLJ is forecast to develop, advecting ample Gulf moisture up the river valleys, with the 50 F isodrosotherm as far west as Presidio by 12Z Tuesday, and 60+ dewpoints in the lower Trans Pecos. A dryline is forecast to sharpen up as the aforementioned Pacific trough moves into the region.
301 PM EDT Mon Apr 21 2025 A cold front will push through the area this afternoon, exiting by evening.
For higher elevation valleys south and east of Tucson, high temperatures will be in the low to mid 80s. As some troughiness approaches over the weekend, that will help kick up winds a bit more due to a tighter pressure gradient with a few degrees of cooling as well. Warmer and drier weather with highs roughly 4-7 degrees above normal, periods of high clouds and breezy afternoons return this week. Min RH values will be in the single digits in the lower elevations and teens in the mountains with poor overnight recoveries through the forecast period.
400 PM EDT Mon Apr 21 2025 - A southeast dropping cold front will bring showers and possibly thunderstorms to the area through the evening.
Positive height anomalies over the east and central CONUS build behind the departing trough Tuesday morning.
High pressure in the Atlantic will be the dominating feature over the next seven days.
144 PM EDT Mon Apr 21 2025 High pressure will linger across the region into Tuesday. Another slow moving cold front may reach the region by the weekend. The mid-levels will consist of a subtropical ridge across the Southeast U. At the surface, High pressure will remain along the Atlantic coast. Strong subsidence associated with this High will bring as dry conditions. High temperatures are still on track to reach the lower to middle 80s away from the coast, with some upper 80s possible across inland GA. Deep layered ridging will being to lose its grip over the forecast area as it pivots eastward into the Atlantic.
134 PM EDT Mon Apr 21 2025 (Today and tonight) An H5 ridge off the east coast of Florida will continue to keep showers and storms away from the area again today. High clouds will continue to stream through the region thanks to southwesterly flow on the western side of the ridge.
(Rest of today through Tuesday) Stout mid-level ridging remains established across the region today as a subsequent (impressively) strong subsidence inversion remains in place with copious amounts of dry air aloft. Although the mid-level ridge will continue to weaken, our prevailing weather pattern will remain status quo as surface ridging continues a surface easterly flow regime. Highs each afternoon will be in the low to middle 80s across the east coast, with low 90s expected across portions of western south Florida. Lows will drop into the low 60s across the interior and west coasts (away from the easterly maritime influence) with temps in the low 70s along the east coast.
High pressure brings dry and seasonable conditions through the end of the work week. The next chance of rain arrives this weekend as low pressure tracks near New England. First set of rain showers, comes in from the west this evening, on the WAA at the warm frontal part of the system. The ME mtns and E zones first round of showers should end by noon, but thereâs a chance for another round of showers in the E mid to late afternoon as weak upper level trough moves through, along with weak cold front.
(Tonight through Tuesday night) Key Messages: - Low to medium rain chances Tuesday night A weak, cold front has pushed into the Coastal Bend this afternoon. High Temperatures will be from the lower to mid 80s along the Coastal Bend to the mid 90s in the Rio Grande Plains.
124 PM MDT Mon Apr 21 2025 - Breezy winds today will continue into Monday evening with peak gusts around 30-45 mph - A Wind Advisory is in effect Monday for the Snake River Plain, Eastern Magic Valley, and Raft River Region until 9PM MDT Afternoon satellite imagery shows an upper trough continuing to move east of the area but the tight pressure gradient remains in place nevertheless, leading to a windy day across much of eastern Idaho. Overnight temps will run around seasonal norms for late April with 20s generally across the high country and 30s in the valleys.
233 PM EDT Mon Apr 21 2025 High pressure will remain offshore tonight. Low pressure will move from the upper Great Lakes across southern Canada through Tuesday night. High pressure builds back over the area Tuesday and lasts through the end of the week.
- Warmer weather returns continues through most of the week. Upper level trough passes north of Colorado today. Otherwise the area will be under the base of the trough with a westerly downslope flow limiting an shower development. Models have a weak upper trough to push eastward across the CWA today. There will even be a surge of slightly cooler air and some upslope over the plains mostly this evening. The best chance of any rain/snow showers will be across the higher mountains, with a slight chance of a few gusty showers across the lower elevations.
1123 AM MDT Mon Apr 21 2025 - Breezy winds today will increase for Monday with gusts peaking around 30-45 mph - A Wind Advisory is in effect Monday for the Snake River Plain, Eastern Magic Valley, and Raft River Region from 9AM-9PM MDT A few isolated showers will remain today, mainly across the highlands. Temps are a touch warmer as well, closer to normal. A few showers will likely develop Tuesday night ahead of the next low pressure system.
/NF/ Warm humid conditions are expected to persist through the day today as the high off to our east continues to funnel in onshore flow from the Gulf. A low that is moving towards Wisconsin has trailed a cold front through our northwestern peripheries, causing a thin line of rain showers.
Issued by National Weather Service Cleveland OH 406 PM EDT Mon Apr 21 2025 Low pressure across the Great Lakes will move into Ontario province tonight, which will push a cold front across the area late through this evening.
Issued by National Weather Service Cleveland OH 203 PM EDT Mon Apr 21 2025 Low pressure across the Great Lakes will move into Ontario province tonight, which will push a cold front across the area late this afternoon and evening.
315 PM EDT Mon Apr 21 2025 A warm front will lift north through the forecast area through the afternoon, ahead of a cold front pushing through overnight. High pressure builds to the north through midweek as the cold front stalls to our south. Another low pressure system and associated cold front bring precipitation chances this weekend. Surface observations show the warm front is currently draped across northern VA towards western MD. The warm front will continue slowly lifting northward this evening as a cold front approaches from the west. With the warm front across the area, there is a large spread in temperatures this afternoon. As the cold front moves through the Mid-Atlantic, showers and thunderstorms are possible mainly along and west of I-81.
103 PM CDT Mon Apr 21 2025 An upper trough over the plains will lift rapidly out to the northeast today. Upper ridging over the southwest Atlantic and northeast Gulf will continue to suppress rain chances southeast of I-65 today. High temps will be in the low to mid 80s with lows in the low 60s inland to mid/upper 60s along the coast.
- Meteorological Overview: A broad trough aloft will continue to bring disturbances through the area.
138 PM EDT Mon Apr 21 2025 A cold front will arrive tonight and stall across our area on Tuesday, providing a focus for mainly scattered afternoon and evening showers and thunderstorms. The cold front is now located over the central Tennessee Valley, and is completely separated from its upper reflection. Deeper forcing will be shunted north of the CWA as the upper low / trough continues to pivot into Ontario. This will lead to overnight lows running 10-15 degrees above normal, with some lingering showers over the higher terrain.
High temperatures today will be in the low 80s for most of the area, with the College Station area likely getting into the mid 80s. Southerly flow returns for the area on Tuesday lead to a slight bump in temperatures (highs in the low to mid 80s, lows in the upper 60s to mid-70s).
The Florida Keys are experiencing partly cloudy conditions with current temperatures in the lower to mid 80s. Our prevailing synoptic pattern continues to be a strong high pressure sitting over the southeastern U.
Come mid to late Tuesday AM, and while heavily washed out when compared to it's current state, what is left of the stalled boundary will be pushing further north as a weak warm front. This will not only expand the available moisture, but also allow for temperatures to climb a few degrees warmer.
As daytime heating fades and the sea breeze weakens, winds will become southeasterly overnight with lows dropping into the low to mid 60s and the ongoing forecast continues to look good so no updates needed this evening. High pressure in the Atlantic will be the dominating feature over the next seven days.
Issued by National Weather Service Cleveland OH 657 PM EDT Mon Apr 21 2025 Low pressure across the Great Lakes will move into Ontario province tonight, which will push a cold front across the area late through this evening.
1017 PM EDT Mon Apr 21 2025 A cold front will arrive tonight and stall across our area on Tuesday, providing a focus for mainly scattered afternoon and evening showers and thunderstorms. As of 1010 PM EDT Monday: Wind gusts have diminished and moisture over the mountains associated with the cold front has fallen apart over the last few hours. While the low-level kinematics don't look favorable for any tornadic threat, there's a nonzero chance of some large hail and/or damaging winds if storms become strong to severe.
724 PM EDT Mon Apr 21 2025 A cold front will push through the area this afternoon, exiting by evening.
626 PM CDT Mon Apr 21 2025 (Tonight through Tuesday night) Key Messages: - Low to medium rain chances Tuesday night A weak, cold front has pushed into the Coastal Bend this afternoon. High Temperatures will be from the lower to mid 80s along the Coastal Bend to the mid 90s in the Rio Grande Plains.
739 PM EDT Mon Apr 21 2025 (Through Tuesday) High amplitude upper ridge will remain in place along the eastern seaboard overnight, with low-level southerly flow gradually moistening the boundary layer underneath a dry airmass aloft.
433 PM MDT Mon Apr 21 2025 - Breezy winds today will continue into Monday evening with peak gusts around 30-45 mph - A Wind Advisory is in effect Monday for the Snake River Plain, Eastern Magic Valley, and Raft River Region until 9PM MDT Afternoon satellite imagery shows an upper trough continuing to move east of the area but the tight pressure gradient remains in place nevertheless, leading to a windy day across much of eastern Idaho. Overnight temps will run around seasonal norms for late April with 20s generally across the high country and 30s in the valleys.
933 PM EDT Mon Apr 21 2025 A cold front will push through the area this afternoon, exiting by evening.
Discussion: A cold front is currently to our west across west Tennessee. Then, showers and storms progress northeast along the cold front that is draped across the east TN mountains. These areas will see the highest POPs on Tuesday compared to areas north of the cold front.
805 PM EDT Mon Apr 21 2025 High pressure will remain offshore tonight. Low pressure will move from the upper Great Lakes across southern Canada through Tuesday night. High pressure builds back over the area Tuesday and lasts through the end of the week.