Aikyam-Lab/Synoptic-Bench huggingface dataset:
(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.
109 AM EDT Tue Apr 22 2025 (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.
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. (06Z TAFS) VFR conditions prevail as high pressure continues to dominate.
Temperatures will likely be slightly above freezing leading to either rain or a mix from these showers.
Temperatures early this morning are in the lower 50s to mid 60s. A cold front extends from middle Tennessee through north Mississippi and into northern Louisiana. The cold front will lift north some today toward the Tennessee/Mississippi border before stalling out by this evening.
- Cooler temperatures will start the work week, although a gradual warm up is in store through mid-week.
Tomorrow: By tomorrow morning, temperatures will be near freezing for most locations (including the Lewiston-Clarkston valley and the Moses Lake area which typically run warmer than other locations).
Another sunny day as a ridge of high pressure moves overhead.
Highs for Tuesday will be in the low to mid 80s inland and in the upper 70s to near 80 degrees along the coast.
(Rest of tonight and Tuesday) Late this evening, clusters of showers and storms have redeveloped along a remnant outflow boundary from earlier convection across central Alabama and a weak cold front that brought storms to the area earlier in the day.
358 AM EDT Tue Apr 22 2025 A low pressure system will approach tonight and cross the region today.
338 AM EDT Tue Apr 22 2025 High pressure will linger off the coast until a cold front approaches mid week. Another cold front should move through over the weekend. Temperatures will be well above normal today ahead of a slow moving cold front, especially for inland areas where highs in the upper 80s are expected.
Confluence along the SW-NE oriented dryline/trough may end up being stronger than along the dryline to the south as indicated by several hi-res solutions, possibly maximized near the bend to the northeast.
126 AM EDT Tue Apr 22 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.
High pressure then is expected to build into the region for most of the week.
Evening synoptic/water vapor analysis indicates ridge centered over the Bahamas. Meanwhile, the associated weak cold front will continue to stall across our forecast area looking ahead into Tuesday.
1221 AM CDT Tue Apr 22 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.
Skies for most of tonight are expected to be mostly cloudy to overcast as the low-level moisture moves over the region. The overnight low temperatures for tonight are expected to be in the lower 70s. A disturbance in the mid-levels will bring some instability to the region during the day tomorrow and combine that with the low-level moisture flow and daytime heating would allow for Deep South Texas and the Rio Grande Valley to see another round of showers and thunderstorms. While the high temperatures are currently forecasted to be in the lower 90s for the western half of the CWA, most of the eastern portion should be in the upper 80s. It is possible that depending on the cloud coverage from the showers and thunderstorms that some of the forecasted temperatures could be slightly cooler.
A high pressure ridge anchored across the Western Atlantic maintains unseasonably warm conditions with low- level SW flow, and afternoon seabreeze. Low temperatures in the low 60s are about 6-10 degrees warmer than normal for late April.
A deeper trough is forecast to develop to our west by the weekend. With most of the area seeing decent rainfall lately, flooding may be a concern for the later half of the week if the higher end rain totals are realized.
Discussion: The weak cold front to our west is struggling to make much progress, and is forecast to continue to weaken as it pushes into our area before stalling near our south and east border later today and gradually dissipating.
1248 AM EDT Tue Apr 22 2025 High pressure will keep much of the remainder of the week dry.
350 AM EDT Tue Apr 22 2025 High pressure begins to build over the region and will persist towards the end of the week.
A weakening cold front will stall near the N GA border tonight. Highs will remain several degrees above average as our moist airmass remains in place, though N GA may be a touch cooler thanks to rain and cloud cover (upper 70s versus mid to upper 80s elsewhere).
An area of low pressure is projected to begin traversing the western United States by this weekend, likely resulting in a cooldown and perhaps some breezy conditions for the Desert Southwest. Current analysis reveals quasi-zonal flow stretched out across a good portion of the western CONUS, while a series of troughs, move across the northern tier of the country and southern Canada. In terms of temperatures, near to slightly above normal forecasted heights aloft indicate a marginally warmer-than- normal airmass in place through the week. Global ensembles indicate a Eastern Pacific trough moving onshore toward the Great Basin by the end of the week and into the weekend.
Upper level trough moving across Montana and Wyoming is brining widespread rain to the Dakotas. There's subsidence from the trough and westerly downslope flow. So any shower development off the higher terrain will be high-base and precipitation will evaporate before reaching the ground.
201 AM EDT Tue Apr 22 2025 A cold front will slowly move southward through the area this morning. 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. The cold front is along a line from LBE to MGW to CBE as of 06Z.
1253 AM CDT Tue Apr 22 2025 (Rest of tonight and Tuesday) Late this evening, clusters of showers and storms have redeveloped along a remnant outflow boundary from earlier convection across central Alabama and a weak cold front that brought storms to the area earlier in the day.
157 AM EDT Tue Apr 22 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. More significantly, an area of showers and scattered TS has developed across northern AL and north GA in association with a weak short wave trough rippling through SW flow aloft. 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 with the strongest storms.
220 AM EDT Tue Apr 22 2025 High pressure promotes dry weather through midweek.
Ludwig /Issued 856 PM MDT Mon Apr 21 2025/ - Meteorological Overview: A broad trough aloft will continue to bring disturbances through the area.
Westerly flow continues tonight as a trough remains over southwest Canada.
114 AM EDT Tue Apr 22 2025 A cold front will push through the area this afternoon, exiting by evening.
Light rain/snow showers are largely tapering off tonight as low pressure continues to track east of Lake Superior. Positive height anomalies over the east and central CONUS build behind the departing trough Tuesday morning.
Warmer temperatures should keep precipitation as rain, however higher elevation Black Hills areas could see a light mix with no snow accumulations expected.
Issued by National Weather Service Cleveland OH 155 AM EDT Tue Apr 22 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.
A series of passing troughs this week will maintain onshore flow across the region.
231 AM EDT Tue Apr 22 2025 Slightly cooler and drier conditions are expected for most of the week, with warmer and more humid conditions expected by late this week.
Deep mean layer ridging remains anchored off the Southeast U. Deep mean layer ridging will continue to be the name of the game this week as it remains off the Southeast U. This ridge will continue to sit and meander for the next several days. Temperatures will remain fairly constant with daytime highs in the lower 80s with the potential for some mid 80 degree readings and overnight lows in the mid 70s. The high is expected to remain in a more weakened state for the next few days keeping the Island Chain below breezy conditions.
(Tonight through Wednesday Night) A low pressure system has tracked into the Great Lakes area, and a cold front has made it south through Middle TN.
Save the northern counties where a surface cold front, almost a stationary front, may relegate highs to only reaching the mid/upper 70s through the I-70 corridor/Soctt City area.
1020 AM EDT Tue Apr 22 2025 High pressure will keep much of the remainder of the week dry.
629 AM EDT Tue Apr 22 2025 High pressure builds into the region today, bringing dry conditions and warm temperatures. High pressure and warm, dry weather remains through the end of the work week. Today will be dry as ridging builds into the area. Winds are progged to pick up as isobars stack between the departing trough and building ridge. Sheltered valleys could see temps fall below freezing while the Wyoming Valley will stay in the low 40s. High pressure brings mostly clear skies and temperatures climbing into the mid 60s to low 70s.
950 AM EDT Tue Apr 22 2025 A cold front will slowly move southward through the area this morning. 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. As of mid morning, a cold front stretches from northeast Maryland through central Virginia. The aforementioned cold front will slowly drift south of the area through tonight.
Lowland highs in the lower-to-mid 80s, just a few degrees warmer than usual for late April.
637 AM EDT Tue Apr 22 2025 High pressure will keep much of the remainder of the week dry.
601 AM EDT Tue Apr 22 2025 Slightly cooler and drier conditions are expected for most of the week, with warmer and more humid conditions expected by late this week.
A cold front continues to push through south central Nebraska and north central Kansas this morning.
852 AM EDT Tue Apr 22 2025 - Sensitive fire weather conditions with little to no precipitation through the week - Warm afternoon temperatures continue with highs in the 80s to low 90s, especially Wednesday - At least a Moderate risk for dangerous rip currents will exist at area beaches through late week Persistent pattern of dry weather with high pressure in control over the western Atlc and stable onshore flow regime, accompanied by daily sea breeze pushing inland (afternoon) from the east coast.
An upper trough will approach the area later this evening with the trough axis moving overhead tonight. Isolated showers Wednesday should be confined to the same areas, although they will trend farther southeast as the trough axis moves southeast.
As we advect warmer temperatures from the southwest at H850, highs for today are expected to range in the upper 70s to low 80s which keeps us a few degrees above normal for this time of year.
633 AM EDT Tue Apr 22 2025 High pressure begins to build over the region and will persist towards the end of the week.
The highest rain chances will be over northwestern areas. High temps will remain in the low to mid 80s. Low temps remain in the low to mid 60s inland to upper 60s along the coast.
Modest zonal flow will gradually transition to a more southwesterly direction as a broad trough develops near the west coast and gradually drifts eastward. A broad lee trough will turn the surface flow more southeasterly, leading to broad moisture advection into Colorado by Wednesday. At this point the instability axis looks to set up east of the I-25 corridor, but there should still be widely scattered showers/storms across the high country and adjacent plains. It's also worth noting that the NAM/NAMnest are much cooler than other guidance Wednesday afternoon, which would limit precipitation chances north of I-70.
GOES-19 shows the Lower Keys almost perfectly tucked under a streamer of cumulus clouds making for shady conditions.
649 AM EDT Tue Apr 22 2025 High pressure will linger off the coast until a cold front approaches mid week. Another cold front should move through over the weekend. Temperatures will be well above normal today ahead of a slow moving cold front, especially for inland areas where highs in the upper 80s are expected.
625 AM EDT Tue Apr 22 2025 High pressure promotes dry weather through midweek. Also opted to freshen up temperatures and dew points in the wake of the overnight cold frontal passage. A broken line of showers crossing through the forecast area denotes the location of the cold front early this morning. Lingering low level moisture will gradually be chipped away by this surface feature, and should allow clearing skies, especially across our Kentucky and Ohio counties where the center of the high is likely to position itself.
Given the mostly rain cooled airmass, afternoon highs today will range in the mid-70s to low-80s, before "rebounding" tomorrow back into the low to mid-80s.
Overall, expect above normal temperatures to continue through Wednesday with highs in the low 80s to mid 90s, and overnight lows in the upper 60s to low 70s.
718 AM EDT Tue Apr 22 2025 (Today through Wednesday) The synoptic pattern through mid-week will be characterized by a dampening deep-layer ridge as the southern stream remains present over the Gulf and southern CONUS. At the surface, the ridge axis will elongate between northern stream frontal systems and a westward moving trough in the SW Atlantic. This setup will continue the low-level easterly flow and keep the deep-layer dry air over Florida and the western Atlantic. No rain is expected, with highs in the mid to upper 80s across the eastern half of south Florida, and up to the low 90s to the west. Overnight lows will continue to dip to the low 60s across the western half of south Florida, with low 70s along the east coast.
Upper level analysis and water vapor satellite imagery reveal mostly zonal flow aloft over western and north central Nebraska this morning, with a developing trough over the Intermountain West. At the surface, a low pressure system is located over western Iowa, with a cold front tracking through south central Nebraska. High pressure is noted behind the front over western Nebraska. With high pressure in place over western Nebraska, the weather remains fairly quiet this morning and afternoon. As a cold front sweeps across the northern Plains this evening, another round of showers is possible across western and north central Nebraska. By Wednesday, the upper level trough is expected to be more pronounced over the Intermountain West, bringing southwesterly flow aloft. The upper level pattern remains mostly in place, with the upper level trough remaining over the Intermountain West.
As winds and cloud cover continue to decrease tonight, a chilly morning is forecast for Tuesday, with much of the region, including the lowlands, dropping to near or below freezing. A trend to warmer and drier conditions is then in store for the next few days.
945 AM EDT Tue Apr 22 2025 High pressure will linger off the coast until a cold front approaches mid week. Another cold front should move through over the weekend. Temperatures will be well above normal today ahead of a slow moving cold front, especially for inland areas where highs in the upper 80s are expected.
656 AM CDT Tue Apr 22 2025 (Today through Wednesday) Upper ridging remains off the Florida East Coast. Early morning temperatures were generally in the upper 60s and lower 70s, just a touch cooler than this time yesterday. Timing of convective initiation will be the deciding factor on high temperatures the next couple of days, but with forecast soundings showing convective temperatures in the lower 80s, that should be a guideline for a starting point. The forecast soundings indicate some possibility for highs a couple degrees warmer on Wednesday than today.
628 AM EDT Tue Apr 22 2025 High pressure builds into the region today, bringing dry conditions and warm temperatures. High pressure and warm, dry weather remains through the end of the work week. Today will be dry as ridging builds into the area. Winds are progged to pick up as isobars stack between the departing trough and building ridge. Sheltered valleys could see temps fall below freezing while the Wyoming Valley will stay in the low 40s. High pressure brings mostly clear skies and temperatures climbing into the mid 60s to low 70s.
This is in response to a weak low pressure system that will arrive on Wednesday. Temps the next couple days look to be slightly above average, with highs in the Snake Plain and Magic Valley likely in the low to mid 60s.
Cooler overnight temperatures with pleasant daytime highs will continue for the next few days.
Otherwise, warmer than normal temperatures will continue through the period. Meanwhile, the associated weak cold front will stall over northern MS Wednesday night.
324 PM EDT Tue Apr 22 2025 A cold front pushes through tonight followed by high pressure building in on Wednesday.
Highs for Wednesday will be in the low 80s inland and in the upper 70s to around 80 degrees along the coast.
1106 AM EDT Tue Apr 22 2025 Slightly cooler and drier conditions are expected for most of the week, with warmer and more humid conditions expected by late this week.
Precipitation wrapping around the low is present in southern Canada and northern North Dakota. A pressure gradient and high pressure bubble is the reason for the windy west winds today.
141 PM EDT Tue Apr 22 2025 Slightly cooler and drier conditions are expected for most of the week, with warmer and more humid conditions expected by late this week.
Temperatures on the island chain are in the lower 80s with dew points in the mid 60s.
Until than, ridging over the West Coast will maintain light winds across area with mountain convection across the Sierra Nevada. Longer range upper-air ensemble analysis is leaning toward the introduction of a trough pattern near the weekend.
106 PM CDT Tue Apr 22 2025 The northward advancing warm front has stalled this morning, and is now meandering just north of I-20. KNAPP (18Z TAFS) Cigs have lifted and become hi-MVFR across much of E TX/N LA/Srn AR, near and S of a warm front that has lifted back N into NE TX and SW AR near or just SE of the I-30 corridor.
Through Wednesday: Zonal flow aloft exists across the area today, with upper level lows across northern MN and Quebec currently. At the surface, a warm front is lifting northeast across northern IL this afternoon. ushering in warmer and more humid air into the area.
1241 PM EDT Tue Apr 22 2025 High pressure builds into the region today, bringing dry conditions and warm temperatures. High pressure and warm, dry weather remains through the end of the work week. Today will be dry as ridging builds into the area. Winds are progged to pick up as isobars stack between the departing trough and building ridge. Sheltered valleys could see temps fall below freezing while the Wyoming Valley will stay in the low 40s. High pressure brings mostly clear skies and temperatures climbing into the mid 60s to low 70s.
A weak surface front will stall across the Deep South into tonight, transitioning to a warm front by Thu. Stout high pressure in the mid-levels over the Bahamas will flatten a bit thru mid-week as mid-level energy traverses the southeast U. SERLY winds around 10 kts "back" ERLY 10-15 kts Thu-Sat as high pressure retreats seaward. (18Z TAFs) TAFs begin with VFR conditions with high pressure (~1023mb) over the W Atlantic. A low chance (~20%) for showers returns late this weekend as a weak cold front approaches the Florida peninsula.
Another cold front could reach the area this weekend. Lows will only drop to the dew points down in the lower and middle 60s.
There was just enough moisture and instability available to generate isolated/low end scattered showers over the higher terrain this afternoon under zonal flow aloft. High clouds move in ahead of a trough moving inland from the eastern Pacific which will result in more moderate overnight lows. Winds aloft shift to the southwest as the trough moves farther inland on Wednesday. Modest moisture combined with continued above normal temperatures and jet divergence will bring scattered showers over the higher terrain with the northern mountains favored. This high based activity will bring more wind than rain. The trough approaching from the west fills in as it approaches so dynamic forcing insufficient to mention potential for nocturnal showers.
245 PM EDT Tue Apr 22 2025 A cold front will slowly move south of the area through tonight.
The marine layer should deepen tonight, likely filling in the entire coastal basin as a trough deepens and moves across the Pacific Northwest.
Persistence will be the key word with each afternoon high temperatures will be in the 80s for the lowlands and overnight lows in the 40s and 50s.
1117 AM EDT Tue Apr 22 2025 High pressure begins to build over the region and will persist towards the end of the week.
343 PM CDT Tue Apr 22 2025 A general, light southwesterly to westerly flow pattern aloft will persist through Wednesday night as an upper-level ridge remains in place over the western Atlantic. Highs on Wednesday will top out in the low to mid 80s, and lows tonight and Wednesday night will only drop into the 60s.
High pressure will at the surface and aloft will continue to dominate through the week with fair dry weather persisting. Daytime temperatures will remain above normal with highs in the upper 80s to mid 90s over inland areas, while the afternoon sea breeze will keep coastal locations several degrees cooler. Over the weekend an upper level trough will slide across the eastern U.
Regarding the synoptic pattern as a whole it looks to be characterized by a dampening deep-layer ridge as the southern stream remains present over the Gulf and southern CONUS through mid week. At the surface, the ridge axis will be between a northern stream frontal system and a westward moving trough in the Southwest Atlantic. This setup will continue the low-level easterly flow and keep the dry air over Florida and the western Atlantic. No rain is expected through the short term with highs generally in the low to mid 80s across the eastern half of south Florida. Overnight lows will drop into the low 60s across the western half of south Florida due to the dry air, with low 70s along the east coast where stronger onshore flow can be expected into the night.
332 PM EDT Tue Apr 22 2025 High pressure begins slowly exiting to the east and southeast tonight. A warm front develops just to the north on Wednesday before lifting into the Great Lakes Wednesday night.