Aikyam-Lab/Synoptic-Bench huggingface dataset:
Look for slightly cooler temperatures today though plenty of sunshine will be had by all across northern and central Nevada. The main features include a dry and weak upper low that will meander around the eastern Pacific and southwest California through the short term, while upper level ridging will build in from the west. For Tuesday and Tuesday night, the aforementioned upper low is expected to move slightly to the west while the ridge maintains a position out in the eastern Pacific.
634 AM CDT Mon Sep 30 2024 - Warm above normal temperatures will affect the region today - A couple cold fronts will move across Kansas this week and bring some relief from the warmer temperatures for a couple days but limited moisture will result in no precipitation The dry/quiet weather pattern will continue across the central plains for several more days, as a predominately upper zonal flow regime persists across the northern plains with a few upper waves racing eastward and lack of moisture streaming back into Kansas. This will push a cold front southward across Kansas for this afternoon into tonight with warm above normal temperatures once again for central/southern Kansas. No precipitation expected with this cold front due to minimal moisture in place, therefore just a cool down with Tuesday highs in the 70s.
- A cold front brings breezy north wings and slightly cooler temperatures Tuesday. (Today and tonight) Ridging centered across the southwestern US will build into the area a bit more today as mid-level temperatures also warm a bit. A cold front will enter northern Oklahoma around midnight tonight bringing a northerly wind shift but not much change in temperature.
736 AM EDT Mon Sep 30 2024 (Today through Tuesday) South Florida remains under the influence of a strong high- pressure ridge extending from the western Atlantic, leading to rising geopotential heights aloft. Little change is expected by Tuesday, with a positively tilted trough over the southeastern U.
405 AM CDT Mon Sep 30 2024 - A cold front will cross reach the tri-cities around midday.
Upper level ridging will build over western Washington today before flattening out and shifting eastward tonight.
This Morning: High pressure has settled into the area to begin the week. The highest confidence for areas of dense fog will be focused along area riverways, lakes, and low-lying areas. Overnight lows drop into the lower 60s. Tuesday: By Tuesday, a subtle break in the pattern will feature a dry cold front passage through the region.
643 AM EDT Mon Sep 30 2024 (Today and tonight) Upper level low pressure holds over much of the eastern U. As the low lifts to the north, ridging over the southwest Atlantic expands slightly towards the U. Highs for today will be in the upper 80s to low 90s, with heat index values in the low to mid 90s.
1107 AM EDT Mon Sep 30 2024 High pressure will remain over the area into early this week.
Another beautiful day will be on tap for Tuesday with increasing cloud cover Tuesday night ahead of an approaching cold front.
The persistent H5 low remains across the Tennessee River Valley continues to circulate northeastward, the southwestern axis is primed to break of and devolve into a trough stretching into the Lower Mississippi River Valley tonight. Today: Early this morning, the core of the upper low is parked over the TN Valley into the Appalachians, the sfc reflection will slowly wash out. The southwestern trough axis is progged to gradually pinch off from the core of the low over the Appalachians. A Significant was added for the highest HREF dense fog probs >50% in the Hwy 82 corridor from a line east of Leflore to along & north of a line from Holmes to Noxubee County. Tonight: As the trough axis pinches off, continued ascent will persist, but moisture won't be as prevalent.
1253 PM MST Mon Sep 30 2024 High pressure entrenched across much of the western United States will continue to promote dry and unseasonably hot conditions with record heat likely persisting into the end of the week and possibly into the weekend. An east-west oriented ridge axis will continue to dominate across the region. Ensemble guidance is showing signs of the center of the high strengthening again overhead for Fri/Sat which could bring temperatures returning at or slightly above the 110 mark. Other than the heat, we do have a little bit of moisture trapped under the ridge which is developing a few showers in the high country well north and east of the Phoenix valley. Dry and abnormally hot conditions will continue through this week as a strong area of high pressure sits overhead.
High pressure will begin building over the region tomorrow, ahead of a cold frontal movement.
Light showers appear isolated so far this morning, but should increase in coverage through the afternoon, mainly in NE portions of the area, under the closed low that will be slowly moving E-NE into WV/SW VA. Some decreasing cloud cover today will bring warmer temperatures in the 70s. There is some dense fog near Huntsville where the higher clouds cleared out. Rain chances will be much lower tonight as the low finally gets farther away. Temps will be warmer today with highs in the 70s as cloud cover decreases this afternoon.
Changes aren't too far away in the form of a cold front currently diving south along the Palmer Divide ahead of gusty N-NE winds and modestly cooler air.
Decreasing cloud cover will bring warmer temperatures in the 70s to lower 80s tomorrow. Scattered showers will continue on the eastern and southern quadrants of this low as it continues its slow trek toward WV through tomorrow. Breaks in the cloud should be more numerous tomorrow, which will allow for warmer temperatures in the 70s to lower 80s in most Valley locations.
- Patchy fog possible this morning with Warm weather today Any lingering showers and most of the low clouds remains along the Michigan border. A positively tiled ridge will build over the region today. This will bring fair weather with max temperatures today expected to be in the upper 70s to low 80s which is 10 to 15 degrees above normal - Chance of showers and storms Tuesday The warm temps and fair weather will be short lived as an upper level system will swing a cold front through the region tomorrow. There is still a narrow band of moisture that will correspond with the cold front which could spark some thunderstorms Tuesday afternoon. Some patchy frost cannot be ruled out early Wed morning north of I-96 depending on the extent of clearing behind Tuesday's cold front.
High pressure entrenched across much of the western United States will continue to promote dry and unseasonably hot conditions with record heat likely persisting into the end of the week. Early morning atmospheric analysis reveals stubborn high pressure encompassing much of the Four Corners, while two areas of troughing flank the region. With ridging overhead, mostly dry and unseasonably hot temperatures will be the norm over the next several day and potentially into the upcoming weekend.
A strong cold front moving across the state from west to east will continue to see strong northwest winds with gusts to around 40 to 50 mph behind the front.
- Winds Today 15 to 25 MPH and gusting as high as 35 MPH from the north and on the backside of a passing cold front.
(Tonight through Tuesday night) Generally rain-free conditions and near to slightly above normal temperatures will continue through the short term period as weak mid level ridging builds across Deep South Texas. Despite a seasonably warm day Tuesday afternoon with highs in the low to mid 90s, limited precipitable water values will maintain comfortable conditions with heat indices mostly in the upper 90s.
128 PM EDT Mon Sep 30 2024 High pressure across southeast Canada will bring fair weather with slightly above normal temperatures this afternoon through Tuesday.
Our overall pattern this week will consist of high pressure overhead, then there are finally some signs of a trough or two passing by this weekend.
With our low pressure cyclone finally departing the Commonwealth, we will transition to a dry and seasonal forecast, with highs in the 70s and 80s, and lows in the 40s and 50s. We should continue to see clouds breaking more and more as the low pulls away, and as such, these breaks overnight may help patchy dense ground fog to develop.
Low pressure was still our main wx maker and the center of the sluggish low pressure was crawling northeastward into West Virginia. For Tuesday, the low pressure system will finally move away and lose its effect on our wx, but a cold front will approach. The increased sunshine will make Tuesday a few degrees warmer than today. (Tuesday Night through next Monday) Dry wx is expected from midweek through this weekend with west northwest flow aloft around a strengthening ridge to our west.
213 PM EDT Mon Sep 30 2024 (This afternoon through Tuesday) Isolated shra have developed along a 500mb shear axis (ahead of a main trough) across portions of north GA. Isold shra possible again tomorrow as a 500mb trough shifts southward.
- Gusty winds and cooler air are forecast behind a cold frontal passage tonight.
Upper level ridging remains in control in the southwest Atlantic and this has brought a warm and mostly dry start to the week across much of the area. 3 inches in place across the central portions of the Florida peninsula and given the positioning of the Atlantic ridge axis around central Florida, this should allow for the sea breeze from both coasts to spread inland and collide in interior areas with highest rain chances for the central and northern portions of the region and slightly less for southern areas.
Temperatures in the lower to mid 80s expected to rise into the upper 80s to lower 90s across the area.
148 PM CDT Mon Sep 30 2024 - Tuesday's cold front will bring breezy conditions and low humidity to the region. Diurnal cu has developed across much of the forecast area, driven by modest low-level moisture streaming off of the low and associated cloud cover over the Ohio River Valley. Despite these conditions, fog is expected to be more limited tonight due to the approaching cold front from the north providing too much mixing across our northern counties, and less near surface moisture from a day of sunshine and no precipitation. The passage of the cold front will be dry thanks to deep dry air across the region.
105 PM MDT Mon Sep 30 2024 The work week is starting out much cooler than the weekend was. Temperatures this afternoon are sitting in the 50s and lower 60s which is 10-20 degrees cooler than this time yesterday depending on ones location. Temperatures will rebound quickly into the lower to mid 70s in the valleys despite the cool start under ample sunshine as weak high pressure builds over the region once again.
Isolated to scattered showers will continue across mainly the southeastern half of central Indiana thanks to a slowly exiting upper low. Low temperatures will be in the lower 60s. An approaching cold front will bring more clouds with it on Tuesday.
(This evening through Tuesday) Generally north to north easterly flow aloft along with persistent upper-level high pressure across much of the area will result in continued warm and dry conditions through Tuesday. (Tuesday night through next Monday) Warm and dry conditions continue this week, but with cool mornings, as upper level ridging extending from the 4 corners region, brings subsidence conditions. A weak cold front Tuesday and perhaps again this weekend, may drop temperatures a couple degrees, but have little affect on the forecast.
(Rest of today through Tuesday) Very warm conditions continue across South Florida today, especially for this time of year, as a deep and strong ridge extends from the western Atlantic over the Florida Peninsula. The combination of suppression from the ridge and some drier air working into the area will tame convection coverage and strength, with scattered garden-variety showers and thunderstorms this afternoon and early evening. On Tuesday, a mid-level trough will drop across the Southeast US into Northern FL, kicking the ridge over the Carribean. Overall this will result in only minor changes to South Florida weather compared to today, with slightly lower chances for showers and thunderstorms as well as cooler temperatures.
With no rain chances expected, look for afternoon highs tomorrow to range in the upper-80s to low-90s, with lows ranging in the low to upper-60s.
- A cold front will cross reach the tri-cities around midday.
This afternoon there is an upper- level trough over North-central, Central, and Southwestern Montana. On Tuesday an upper-level ridge moves over North-central, Central, and Southwestern Montana. Temperatures on Tuesday will warm up to well above seasonal averages as a result of the upper-level ridge.
(Tonight through Tuesday night) High pressure will continue to build over the area tonight, keeping our rain chances very low.
Analyzing the upper air pattern and water vapor satellite imagery early this afternoon, a deep trough is digging into the northern plains while a fairly stout upper ridge extends from the central plains to the Great Lakes region. At the surface, a cold front is located across southern Nebraska, entering into northern Kansas early this afternoon.
Barnes (Monday through Tuesday) A lingering upper-low across the Ohio River Valley to maintain northerly flow across the ArkLaTex through tonight, An upper- level ridging across the majority of the southwest CONUS to build across the ArkLaTex on Tuesday. At the surface, broad high pressure will maintain light north to northeast winds today into Tuesday.
- Showers and a few thunderstorms likely Tuesday afternoon as a cold front crosses through.
1219 PM CDT Mon Sep 30 2024 (Today through Tuesday) North to northwesterly flow aloft located in the upstream portion of an upper trough today, will become westerly Tuesday as the trough moves eastward and a broad ridge builds in over the Great Plains. Highs today and Tuesday from the low to upper 90s and tonight's lows will range from the mid 60s inland to the mid 70s along the coast.
331 PM CDT Mon Sep 30 2024 - A cold front moving across the region could bring some light rain through this evening. A cold front is marching east this afternoon and is easily picked out looking at the wind shift across the Brainerd Lakes region up through International Falls.
Clear, cool, and extremely dry today under an eastward-moving upper trough. Tonight will be cold and dry but a flat Pacific upper ridge will come inland Tuesday with warmer air.
- High pressure remains in control through the week with little change from day to day. Looking at available moisture and instability, the highest amounts are co- located in that general area so this convection comes as no surprise. Model agreement remains lockstep with an elongated ridge of high pressure anchored over the southern Continental U.
with upper level high pressure centered over the Four Corners region and an upper level low over the eastern U. (Tuesday night through next Monday) Warm and dry conditions continue this week, but with cool mornings, as upper level ridging extending from the 4 corners region, brings subsidence conditions. A weak cold front Tuesday and perhaps again this weekend, may drop temperatures a couple degrees, but have little affect on the forecast.
- Warm above normal temperatures will affect the region today - A couple cold fronts will move across Kansas this week and bring some relief from the warmer temperatures for a couple days but limited moisture will result in no precipitation The dry/quiet weather pattern will continue across the central plains for several more days, as a predominately upper zonal flow regime persists across the northern plains with a few upper waves racing eastward and lack of moisture streaming back into Kansas. This will push a cold front southward across Kansas for this afternoon into tonight with warm above normal temperatures once again for central/southern Kansas. No precipitation expected with this cold front due to minimal moisture in place, therefore just a cool down with Tuesday highs in the 70s.
1236 PM CDT Mon Sep 30 2024 - Critical fire weather conditions expected this afternoon in western and central MN as gusty winds and dry air will arrive following a cold front. - Cooler Tuesday with seasonable temperatures in the mid 60s. Lows are mainly in the 50s but warmer air is present in western MN where lows have only reached the low 60s. Area winds are expected to increase throughout today, turning more southerly this morning, as a trough arrives from the west. Along the Buffalo Ridge, gusts this morning could reach 35 mph as a strong southwesterly LLJ quickly passes overhead. Temperatures will rise quickly into the low to mid 80s this afternoon before a strong cold passes through from west to east. Highs are forecast to be much cooler in the low to mid 60s.
1205 PM EDT Mon Sep 30 2024 Low pressure passes to the south as it tracks along a stalled boundary over the Mid Atlantic through Tuesday.
146 PM EDT Mon Sep 30 2024 High pressure across southeast Canada will bring fair weather with slightly above normal temperatures this afternoon through Tuesday.
Record high temperatures will continue into the first week of October as a strong area of high pressure remains parked over the Desert Southwest. Little or no relief from record-breaking temperatures is on the horizon this week as a strong ridge of high pressure maintains its grip on the Desert Southwest.
158 PM CDT Mon Sep 30 2024 - A cold front will move through the area this evening into the overnight period shifting winds to the north with an increase in speed - Dry conditions continue throughout the forecast. An upper level trough will move thorugh the Northern Plains and help push a cold front thorugh western Kansas tonight. This will be a dry cold front with no precipitation expected.
232 PM CDT Mon Sep 30 2024 - A cold front will come through the region tomorrow morning with gusty northwest winds, plummeting humidity levels, scattered clouds, and a few sprinkles. Tonight through tomorrow morning, the aforementioned cold front will sweep across the Great Lakes leading to an abrupt northwesterly wind shift. Humidity levels will also plummet behind the front, with dew points dropping from the mid 60s at daybreak to the lower 30s by evening.
216 PM EDT Mon Sep 30 2024 Scattered shower activity will be present today associated with a low pressure system. For the day on Tuesday, cannot rule out some precipitation chances across the lower Scioto valley during the morning and into the afternoon hours. Cold front will be moving through the region at the start of the period.
1130 AM EDT Mon Sep 30 2024 Upper level low pressure will weaken/fill as it drifts slowly east from the Ohio Valley today and tonight, before pushing east of the area late Tuesday.
Pattern Synopsis: Amplified ridging will continue to push east of the Great Lakes tonight as strong troughing punches across southern Canada/upper Midwest and works overhead on Tuesday. An attendant cold front will swing from NW to SW across the area during the day Tuesday. Forecast Details: Light Shower chances return late tonight - Tuesday -- After a pleasant rest of this evening, chances for light rain showers will begin to spread from NW to SE across the area late tonight along/behind the aforementioned cold front. Otherwise, northwest winds look to set in behind the front Tuesday, ushering in noticeably cooler air across the Great Lakes. Temperatures look to stay in the upper 50s/low 60s for most of the area into the evening, with locally warmer afternoon temps near Saginaw Bay ahead of the front.
207 PM EDT Mon Sep 30 2024 A large area of low pressure will slowly drift east across the central Appalachian mountains tonight and Tuesday bringing scattered showers toward the East Coast. The upper low will finally move away from our area during mid week.
310 PM EDT Mon Sep 30 2024 An upper low will slowly track toward the area through Tuesday before exiting offshore.
235 PM CDT Mon Sep 30 2024 - Cold front moves through this evening, breezy overnight and cooler Tuesday. Current water vapor imagery shows our old upper low, partially associated with the remnants of Helene, still over the central Appalachians. Meanwhile, strong ridging is present over the southwestern CONUS while a vigorous upper trough is moving across the northern Plains and south-central Canada. This trough is pushing a cold front south and east across the Plains, with the front now moving into far NW Kansas. Cooler and much drier air will also move in behind the front, with that lack of moisture keeping any rain from developing. Temperatures stay in the low/mid 70s Tuesday, before dropping into the 40s Tuesday night as high pressure moves overhead and winds calm.
253 PM EDT Mon Sep 30 2024 Upper level ridging remains in control in the southwest Atlantic and this has brought a warm and mostly dry start to the week across much of the area. 3 inches in place across the central portions of the Florida peninsula and given the positioning of the Atlantic ridge axis around central Florida, this should allow for the sea breeze from both coasts to spread inland and collide in interior areas with highest rain chances for the central and northern portions of the region and slightly less for southern areas.
236 PM CDT Mon Sep 30 2024 - Critical fire weather conditions this afternoon in western and central MN with gusty northwest winds and low humidities behind the cold front.
Ridging remains in the southwestern Atlantic and extending into the Gulf of Mexico, maintaining east to southeast winds across the region.
Easterly winds will be developing and deepening in response to high pressure building over the MiddleMis- sisippi River Valley. Highs tomorrow should range from the low to mid 90s over the Piney Woods and coast to the the mid and upper 90s for much of the rest of the CWA. Lows tonight should range from the mid to upper 60s (low to mid 70s coast), then a bit warmer for tomorrow night with lows in the upper 60s to lower 70s (mid to upper 70s for the coast).
315 PM EDT Mon Sep 30 2024 High pressure will stay over the region early this week.
WEATHER PATTERN OVERVIEW: Winds will remain gusty (mostly in the 40 to 50 mph range) through this afternoon behind a cold front that has dropped temperatures close to and even slightly below normal. Once the winds calm down significantly this evening and skies remain mostly clear, there is widespread frost potential with much of the northern zones and typically colder valley bottoms dropping below the freezing mark for the first time this season.
Low pressure to the N will move slowly eastward through the period.
(This afternoon through Tuesday night) A cold front now progressing through the central High Plains will slide through the Panhandles tonight and the South Plains before sunup. The cold front (cold in name only) will then enter the Permian Basin, reaching a Carlsbad-Kermit-Midland-Colorado City line just before sunrise, then south of the Pecos River by mid morning. Lows Tuesday night will be a touch cooler, ranging from the mid 40s at higher elevations to around 60 along the Rio Grande.
300 PM EDT Mon Sep 30 2024 High pressure builds back into the area through Tuesday, bringing partly cloudy and mild conditions.
1212 PM CDT Mon Sep 30 2024 (Today through Tuesday) An elongated mid to upper-level trough extending from the Ohio River Valley into Southern Texas will gradually shift further east through the period. Weak 500mb ridging looks to build into the region by this afternoon. High temperatures today and Tuesday will be slightly above normal, in the low to mid 90s.