Aikyam-Lab/Synoptic-Bench huggingface dataset:
Warm inland temperatures expected through today before cooler, unsettled weather returns Tuesday and continues through late week.
Low RH with this high will also add to the pleasant conditions today.
Downslope easterly winds will also bring a mild Chetco effect with warmer temperatures along the southern/central Curry coast today, followed by cooler and cloudy conditions along these coastal areas tonight and Tuesday as southerly flow develops.
- Scattered showers in far southern Iowa tonight with cooler and breezy conditions on Tuesday.
604 AM CDT Mon Apr 22 2024 (Today) Tranquil weather across the Tennessee Valley early this morning with high pressure in control. As of 07z, temperatures have fallen into the low to mid 40s and they should generally bottom out in the 37 to 42 degree range (with some slightly lower values across southern middle Tennessee). For the remainder of the day, we can expect plenty of sunshine, but northerly flow will help to reinforce this cooler air mass. As a result, temperatures will once again run below normal, with highs in the low to mid 60s being common once again.
(Now through Tuesday) An upper level northwest flow will continue through Tuesday as an upper trough continues to move off the east coast. This will result in high pressure building at the surface today. The northerly flow will continue to advect a cooler and drier airmass into the region today. A light southerly flow returns on Tuesday as the area of high pressure moves east. Lows tonight will be in the low to mid 40s inland to mid 50s near the coast.
706 AM EDT Mon Apr 22 2024 (Today through Tuesday) A weakening cold front will move into southern Florida today, allowing for an increasing chance of showers and thunderstorms. Moving aloft, there is general traces of the long-lived high pressure over the greater region but a couple of details are to be noted. Temperatures today could be slightly cooler compared to previous days in areas with more cloud cover early in the day but will still be warm. A mid-level trough will move across the southeastern United States tonight before exiting into the Atlantic waters off the Carolinas by early Tuesday. This feature will come into phase with the surface front and allow the associated low pressure to develop over the Atlantic waters as it moves away from the southeastern US coast.
1005 AM EDT Mon Apr 22 2024 Cool high pressure will build into the region today. Temperatures will start to moderate heading into the middle of the week with the approach of a cold front.
300 AM PDT Mon Apr 22 2024 High pressure will maintain well above normal temperatures with mostly dry conditions through today. Unsettled and more active weather returns Tuesday and beyond, including much cooler temperatures by the week's end and daily chances of showers and thunderstorms.
755 AM EDT Mon Apr 22 2024 High pressure will shift off to the southeast through the day, leading to dry conditions and some moderation in temperatures. Southerly winds increase into the afternoon as the high shifts east. As the low passes by, an attached cold front pushes into the area from the northwest by the late afternoon. A mid level s/wv and cold front will be pass east/southeast across the region Tuesday night, resulting in a period of showers. Lows will range from the lower 40s northwest to the upper 40s southeast.
12Z Aviation Discussion Unseasonably warm temperatures under mostly sunny skies will continue into midweek with the warmest readings occurring today as highs top out in the upper nineties across a good portion of the lower deserts.
846 AM EDT Mon Apr 22 2024 High pressure will shift off to the southeast through the day, leading to dry conditions and some moderation in temperatures. As the low passes by, an attached cold front pushes into the area from the northwest by the late afternoon. A mid level s/wv and cold front will be pass east/southeast across the region Tuesday night, resulting in a period of showers. Lows will range from the lower 40s northwest to the upper 40s southeast.
Cooler temperatures return Tuesday along with a chance for a few late day showers and thunderstorms over the mountains.
High pressure over the MS River Valley will build eastward through the day and settle in across the area through tonight and Tuesday.
842 AM EDT Mon Apr 22 2024 A ridge of high pressure at the surface and aloft will build over the region today supplying abundant sunshine and milder daytime temperatures. Mainly clear skies and light wind will lead to areas of frost again tonight across the Central Ridge and Valley Region with the frost being more patchy over the Lower Susquehanna Valley.
625 AM CDT Mon Apr 22 2024 (Monday through Tuesday) High pressure is holding steady on the 1024mb contour so far with still a light NW wind in E TX. We will bottom out soon in the 40s with area dew points all in the low to mid 40s for most. Already foggy in the central areas of LA where even this low visibility will quickly clear with very dry air aloft looking at the water vapor. (Tuesday Night through Monday) This local area of high pressure will continue eastward across the SE U. The next area of high pressure will edge out of Canada into the Great Lakes during midweek. This boundary will hang around and wash out as a upper ridging slides over TX.
546 AM CDT Mon Apr 22 2024 (Today through Tuesday) Dry and sunny today as high pressure slides into the area. We can expect a chilly night overnight as high pressure becomes centered over the region. Clear skies and very light winds will promote strong radiational cooling with lows mainly in the lower to middle 40s, though the coldest spots should see upper 30s. Another sunny and dry day on Tuesday, with high pressure in control. Highs will be a little warmer with readings in the 70s areawide.
457 AM MDT Mon Apr 22 2024 -Windy and slightly cooler today. Progressive NW flow will transition to western CONUS troughing this week as another deep upper trough moves out of the eastern Pac. Temps will be cooler than yesterday, but right around seasonal norms in the 50s and low 60s. A cold front currently crossing the region is producing some light rain showers over northwestern SD, these showers will move from northwest to southeast along with the front and may result in local MVFR conditions.
A ridge will slide into the region tonight and tomorrow promoting drier conditions. As the ridge slides into the region tonight into tomorrow, warmer temperatures are expected Tuesday with highs in the upper 70s to lower 80s. Overnight lows tonight will range from the mid 50s islands across the Coastal Plains, Victoria Crosswords and northern Brush County to the lower 60s across the Rio Grande Plains and Coastal Bend.
And with mostly clear skies remaining place high temperatures will be in the lower 70s across the CWA today, then a bit warmer tomorrow in the mid to upper 70s. With light onshore winds prevailing by tomorrow night, lows will be warmer in the lower and mid 60s.
West winds behind this trough will increase with soundings showing max winds aloft more in west central into south central ND with west wind potential in the 25-35 mph in gusts into southeast ND with sustained winds 20 mph. 5 C/km behind the cold front along with low level dry air across the Highway 200 corridor points south. We will see ridging making its way into the region mid week, with warmer airmass moving in.
WV imagery shows an upper, dirty ridge over the southwest CONUS, leaving the region under dry, northwest flow aloft. Tuesday, the upper ridge continues to build/strengthen east into the region, further increasing thicknesses under near-maximum insolation, yielding afternoon highs a respectable ~ 7-9F above normal, making it feel more like mid May than late April. During the afternoon, a cold front will approach the area, and convection may nick the far northeast CWA.
546 AM CDT Mon Apr 22 2024 - Clouds will move into today ahead of a cold front that will sag through the area into Tuesday. Southwest flow this morning has kept temperatures warmer than expected for 3 AM. Otherwise, ridging will start the day as we see WAA into the area. A wave and cold front north of the area will move south towards us during the day. As far as precipitation goes, the deep mixing will mix down dry air with dewpoints in the low 30s to upper 20s. To start Tuesday, the cold front will be slowly sagging south into the area. The better CVA arrives in the afternoon and will likely fire some isolated showers and storms on the cold front.
Temperatures will remain well below normal by around 10-15 degrees today due to the cooler airmass in place and the abundant cloud cover. Highs today should range from the upper 60s across the Rio Grande Plains to the lower 70s elsewhere. Cooler than normal tonight with overnight lows falling into the upper 50s across the Northern Ranchlands to the low to mid 60s elsewhere. Warmer on Tuesday with highs in the low to mid 60s, except for the 70s at the beaches.
Afternoon breezes today along with low probability for virga, light sprinkles, and a lightning strike or two in and near White Pine County, mostly relegated to the higher terrain.
Clear skies, light winds, and dewpoints in the low to mid 30s will allow lows to reach the mid 30s to around 40 by sunrise - with fairly widespread frost anticipated. No changes were made to the frost advisory, although it is possible a few of our typically colder spots may even touch the freezing mark. This will keep lows several degrees warmer than this morning in the upper 30s to mid 40s. Tuesday looks even warmer than today as southwesterly winds continue to strengthen ahead of a cold front sinking southward across the Midwest, with highs reaching the upper 60s to mid 70s. (Tuesday Night through next Monday) A cold front will continue sinking southward through the midstate Tuesday night, with scattered showers anticipated especially over our northern half.
High pressure will build overhead this evening through Tuesday, then shift to our southeast.
641 AM CDT Mon Apr 22 2024 (Today and tonight) Sunnier and warmer conditions are on tap for today as northwest upper-level flow moves over the forecast area.
(Today through Tuesday) A weakening cold front will move into southern Florida today, allowing for an increasing chance of showers and thunderstorms. Moving aloft, there is general traces of the long-lived high pressure over the greater region but a couple of details are to be noted. Temperatures today could be slightly cooler compared to previous days in areas with more cloud cover early in the day but will still be warm. A mid-level trough will move across the southeastern United States tonight before exiting into the Atlantic waters off the Carolinas by early Tuesday. This feature will come into phase with the surface front and allow the associated low pressure to develop over the Atlantic waters as it moves away from the southeastern US coast.
605 AM CDT Mon Apr 22 2024 (Today through Tuesday Night) Cooler than normal temperatures will persist across the area through tonight as sfc ridging remains in the area and mid-level flow is still out of the NW. Sfc ridging will begin to move southeast of the area on Tuesday with the H500 flow becoming less amplified. Warmer temperatures can be expected and S-SW winds will be gusty at times. From late Tue into Wed, a new mid-level trough will progress east from the Northern Plains toward the Great Lakes. This feature, along with an associated cold front approaching the state from the NW, will support limited chances for showers/storms, mainly across northern parts of the state.
High pressure slides south of the area Tuesday for warmer and dry conditions.
Looking back at overnight lows, Haleyville and Gadsden hit the mid 30s, and we can expect similar temperatures once again tonight but perhaps a degree or so warmer.
High pressure will build overhead tonight through Tuesday, then shift to our southeast. At the surface, ~1025 mb high pressure centered over GA and the Carolinas on Tuesday morning will shift SE and offshore in the afternoon. This will shift the low-level flow to a southwesterly direction, helping bring 1000-850 mb thicknesses 20-30 m higher than today, supporting warmer high temperatures mainly in the lower-70s.
Temperatures are generally in the lower 80s across the island chain at this mid- afternoon hour. The Lower and Middle Keys are expected to remain generally dry tonight. High pressure will build in the wake of this weak frontal boundary across the Southeast, then quickly slide eastward into the western North Atlantic. With a weak mid-level ridge in place over the Gulf of Mexico, this will act to deflect any major synoptic disturbances.
1119 AM MDT Mon Apr 22 2024 - Windy and slightly cooler today. Progressive NW flow will transition to western CONUS troughing this week as another deep upper trough moves out of the eastern Pac. Temps will be cooler than yesterday, but right around seasonal norms in the 50s and low 60s.
(This evening through Tuesday Night) Another cool night is expected with lows in the low to mid 50s. An upper level trough will track across the Northern Plains Monday night into Tuesday morning, sending a weak cold front into the northern Big Country by late Tuesday afternoon.
High pressure over the region is drifting eastward, while zonal. This afternoon's highs should pick up a few degrees on yesterday, and though we start to see winds turn onshore with the high moving off, tonight still looks relatively cool. Lows range from the upper 40s off towards the Piney Woods, in the lower 50s for most of the rest of inland Southeast Texas, with temps getting hung up around/above 60 degrees on the Gulf Coast. Just a few degrees warmer than last night, and still 5-10 degrees below seasonal averages.
Due to abundant sunshine and weakening cold advection throughout the day, highs will be a few degrees warmer compared to yesterday, ranging from the lower 60s atop the Cumberland Plateau to the mid-upper 60s in valley locations.
Look for the surface pressure gradient to increase tomorrow once the aforementioned ridge pulls farther east. Additional low rain chances will come our way with the approach of a warm front from the southwest, but this is not going to be a substantial rain-producer. Better rain chances will happen this weekend when a cold front pushes through Middle Tennessee, but QPF totals throughout the next 7 days are below 1/4" across the greater portion of the mid state, and below 1/2" for all but the northwest corner of the forecast area.
1020 AM MST Mon Apr 22 2024 Updated Aviation Unseasonably warm temperatures under mostly sunny skies will continue into midweek with the warmest readings occurring today as highs top out in the upper nineties across a good portion of the lower deserts.
- Rainfall returns with a cold front overnight Tuesday.
230 PM CDT Mon Apr 22 2024 -A weak cold front will bring a round of showers and perhaps a weak thunderstorm or two during the day tomorrow.
(This afternoon through Tuesday night) A weak, upper level ridge begins taking hold over the region tonight and into Tuesday allowing for a quick warmup. With low level moisture continuing to linger over the plains and a breezy low level jet, Tuesday night lows stay above normal in the upper 50s to low 60s with areas to the west and in the higher elevations reaching into the low 50s.
High pressure over the Tennessee Valley shifts east tonight. A long wave trof making its move toward/over the Great Lakes barrels a cold front our direction tomorrow. The high is shunted further south as it approaches, so the return flow of Gulf moisture is muted. As a result, dew points will still largely be in the 40s, struggling into the lower 50s, upon its arrival. Temps start to climb by week's end as upper ridging builds heights across the FA.
332 PM EDT Mon Apr 22 2024 High pressure will be the dominant player across the southeast through the week and into the upcoming weekend. Through the night, an H5 ridge will build over the region from the east. At the sfc, the center of high pressure is expected to slide from the Deep South, reaching the eastern Carolinas by daybreak Tuesday.
- Dry cold front with strong northeast winds Tuesday.
Tonight, high pressure will become centered directly over the area, which will lead to another night of subsidence and radiational cooling after some WAA today.
327 PM CDT Mon Apr 22 2024 - Cooler and windy on Tuesday behind a passing cold front overnight.
Brief ridging builds in tonight and Tuesday with valley high temperatures on Tuesday well into the 60s (70s for north-central Idaho).
(Through Tuesday) Beautiful weather is expected through the next day or so as high pressure settles over the region.
1042 AM CDT Mon Apr 22 2024 High pressure continues to move into the region from the north and west.
Upper trough continues to shift E over the Carolinas. Fuel moisture levels may drop to near critical values as well, but the duration of both the low RH and fuel moisture levels are not expected to reach 4 hours.
111 PM EDT Mon Apr 22 2024 (Rest of today through Tuesday) A cold front will cross South FL today and push away from the area tonight. Despite the cold front moving away from the area tonight, some scattered coastal showers will remain possible overnight into early Tuesday morning as drier air is slow to filter in. High pressure over the SE US builds into the area for Tuesday bringing a return of drier air to the region. NE flow is expected which will bring cooler temps to the east coast metro, while SW FL will remain above normal.
Meanwhile, lee troughing across eastern New Mexico will connect with a surface cyclone across eastern Colorado. That trough will keep south to southwest winds in place with speeds mostly remaining in a range from 10-20 mph which in turn will help keep temperatures on the mild side. NBM looks to a bit high with tonight's lows given the above reasoning, and MOS's warmer numbers are preferred at this time. The surface cyclone to our north will spread eastward late tonight with a slight veering of the surface flow across the forecast area. This will be followed by a move of the low to the south and the southward movement of a cold front extending northeastward from the low. Pre-frontal compressional warming is likely in this scenario with the warmer NBM favored over MOS this time around.
Gradually, the broad scale trough will continue to exit stage east and allow for a slightly more zonal or a progressive upper level flow to develop going into the second half of the short term period. With the trough pushing east and a dry regime remaining, the only concerns will be temps and winds. With high pressure in control winds will be light and variable later tonight through the end of the period outside of a slight southeast transition.
128 PM EDT Mon Apr 22 2024 Showers will develop Tuesday into Tuesday night as a cold front moves through region. A mid level short wave will drop down across the upper Ohio Valley Tuesday into Tuesday night, with an associated cold front moving through our area Tuesday night.
231 PM EDT Mon Apr 22 2024 A near-zonal flow aloft has taken hold over the region as troughing passes to our north. At the surface, a cold front is moving over south Florida, with some lingering cloudiness continuing to clear out. High pressure will build over the southeast through the rest of the day, ushering in a relatively cooler and drier air mass. This high remains over the region through mid-week before shifting eastward through the end of the week. High pressure and drier air will remain in place through the next several days, with critically low relative humidity values likely for a large portion of the region each day.
201 PM EDT Mon Apr 22 2024 Cool high pressure will build into the region through tonight. Temperatures will start to moderate heading into the middle of the week with the approach of a cold front.
1222 PM CDT Mon Apr 22 2024 (Today and tonight) Sunnier and warmer conditions are on tap for today as northwest upper-level flow moves over the forecast area.
(This evening through Tuesday Night) Quiet, slightly cooler weather will continue into the middle of the week across the Four State Region. This is due to a broad ridge axis that currently extends across the Mississippi River Valley into the Appalachian Mountains. This ridging will gradually progress eastward, reintroducing southerly winds, a chance of precipitation (north of I-30) and increased fog potential by tomorrow night.
159 PM PDT Mon Apr 22 2024 Cooler temperatures, widespread low clouds and periods of gusty onshore winds will occur this week.
1206 PM PDT Mon Apr 22 2024 High pressure will maintain well above normal temperatures with mostly dry conditions today. The active weather continues Tuesday and beyond, including much cooler temperatures by the week's end and daily chances of showers and thunderstorms. * Temperatures & Winds: Temperatures peaked yesterday across the region with most places getting into the low 80's.
223 PM EDT Mon Apr 22 2024 High pressure over the Carolinas brings warmer weather on Tuesday with dry conditions persisting over the area.
216 PM EDT Mon Apr 22 2024 Cool high pressure will build into the region through tonight. Temperatures will start to moderate heading into the middle of the week with the approach of a cold front.
358 PM EDT Mon Apr 22 2024 High pressure will bring cool and dry weather through tonight.
(Rest of today through Tuesday) A cold front will cross South FL today and push away from the area tonight. Despite the cold front moving away from the area tonight, some scattered coastal showers will remain possible overnight into early Tuesday morning as drier air is slow to filter in. High pressure over the SE US builds into the area for Tuesday bringing a return of drier air to the region. NE flow is expected which will bring cooler temps to the east coast metro, while SW FL will remain above normal.
Cooler temperatures will continue into tonight with lows expected to drop down into the lower and middle 40s for inland areas and the lower 50s along the immediate coastal interface.
(Tomorrow through Monday) Further warming anticipated Tuesday ahead of an approaching cold front. Frontal zone should remain fairly active Wed/Thu as it eventually lifts north as a warm front in response to flow becoming more southwesterly with time.
- Cooler and drier conditions through midweek. Initially a warm front will move through the area this afternoon bringing showers and drizzle with it as it passes through the area. By late afternoon, most of the precipitation will have moved out of our CWA with much cooler temperatures present with highs in the upper 30s (closer to the lake) to mid 40s (Inland).
139 PM MDT Mon Apr 22 2024 Satellite imagery shows an upper low over southern SK moving into MB and a dry NW flow over our region. though there is some moisture wrapping southward thru northeast MT and northwest ND on the back side of the low. Dew points have fallen to the mid-upper teens most locations, and if high res models are correct (upstream obs suggest they are) we will see dew points closer to the lower teens by late afternoon, before we begin to see moistening from northeast MT. Tuesday night will be dry underneath upper level ridge.
Overnight lows look to dip into the lower 40s. Some areas in the north may drop into the upper 30s, while some areas in the southeast may overachieve with evaporational cooling as the high migrates east overnight. Tomorrow, dry conditions will continue as the high pressure shifts closer to the southeast region , which will allow for southerly flow to increase from the southwest. Tomorrow's highs look to increase into the lower to upper 70s across the region.
1221 PM CDT Mon Apr 22 2024 High pressure continues to move into the region from the north and west.