Aikyam-Lab/Synoptic-Bench huggingface dataset:
------------------------------------------------------------------ Low level cloud coverage trapped under a subsidence inversion will eventually diminish as weak warm advection aloft increases and allows for more scattered to broken coverage as flow weakens and turns WSW with a building ridge.
Otherwise, another beautiful November day is on tap for today with warmer temperatures expected as southerly low level winds return, with highs rising into the upper 60s to low 70s. Tonight will subsequently be quite a bit warmer with lows in the mid 40s east to mid 50s west, and tomorrow even warmer still with highs in the 70s for most of the midstate.
527 AM CST Sun Nov 17 2024 (Today through Monday) High pressure centered over the Ohio Valley this morning will slide south and east through Monday. By Monday afternoon the high pressure will be centered off the Mid-Atlantic coast.
628 AM EST Sun Nov 17 2024 (Today through Monday) Deep-layered high pressure has built over Florida this weekend. A drier, cooler airmass has settled over the region permitting overnight lows in the 60s and lower 70s across the area. Dry conditions are forecast today and Monday as the high remains well- entrenched over the region. Even with plenty of sunshine, cooler afternoon high temperatures will top out in the lower 80s over most areas. A persistent northeasterly to easterly wind flow will keep things a degree or two cooler near the Atlantic while the flow over the peninsula will help the air warm a degree or two by the time it reaches Southwest Florida.
242 AM MST Sun Nov 17 2024 A dry low pressure system will continue to track eastward across northern Mexico today before exiting to the east on Monday.
328 AM CST Sun Nov 17 2024 - Temperatures will rebound into the low 40s to low 50s today and Monday, which is about 5 to 10 degrees above average for this time of year, then trend much colder through the remainder of the week. This will result in mostly sunny skies today with highs ranging from around 40 near the Canadian border to the low 50s south. Confidence is increasing in an interesting pattern where blocking upper high over Florida ejects a strong upper low from New Mexico, through the Eastern Plains, potentially stalling over eastern ND/northwestern MN, then ejecting into the Great Lakes Region.
654 AM EST Sun Nov 17 2024 - Cloudy with chance showers today and tonight - Unsettled/Showery Week Ahead and Turning Cooler - Cloudy with chance showers today and tonight The morning begins with mostly high clouds as the region is in the dry slot ahead of the approaching cold front. An upper level low moving along the Canadian border will bring a short wave trough through the Great Lakes with a ribbon of moisture extending from Ontario across Michigan to the southwest through Illinois and Missouri. A Cold front will swing across the region today bringing a chance for showers. This will cause most of the region to drop near freezing Monday morning.
550 AM CST Sun Nov 17 2024 - It will be partly to mostly cloudy and a bit warmer today. A cold front is drifting into northwest Missouri this morning. Short range guidance shows the sprinkles/light showers will dissipate this morning as the low level jet weakens and veers.
551 AM CST Sun Nov 17 2024 - Temperatures will rebound into the low 40s to low 50s today and Monday, which is about 5 to 10 degrees above average for this time of year, then trend much colder through the remainder of the week. This will result in mostly sunny skies today with highs ranging from around 40 near the Canadian border to the low 50s south. Confidence is increasing in an interesting pattern where blocking upper high over Florida ejects a strong upper low from New Mexico, through the Eastern Plains, potentially stalling over eastern ND/northwestern MN, then ejecting into the Great Lakes Region.
627 AM EST Sun Nov 17 2024 High pressure covers the region today, with dry weather and warming temperatures.
945 AM EST Sun Nov 17 2024 High pressure will provide dry and mild conditions today. High level clouds will continue to spill across the area through this afternoon as the mid level ridge axis moves off to the east. Temperatures will be seasonably mild with highs ranging from the upper 50s north to the low to mid 60s in the south. This will advance the weak cold front southeast into our northern forecast area. On Monday, the weak frontal boundary eventually dissipates while another mid level ridge briefly bulges northward into the middle Ohio Valley and central Great Lakes. It will be warm with highs in the lower to mid 60s.
227 PM EST Sun Nov 17 2024 (This afternoon through Monday) High pressure and dry conditions will persist through tomorrow afternoon. The high and mid level clouds will begin to increase ahead of an approaching cold front late tomorrow afternoon.
Sky conditions remain clear through the afternoon with max temperatures 5 to 10 degrees above normal with ridging across the Southern Appalachians. Otherwise, warmer today due to stronger ridging and southwest flow in place across the region. Warmer tonight with temps only dropping into the mid 40s.
944 AM CST Sun Nov 17 2024 - Temperatures will rebound into the low 40s to low 50s today and Monday, which is about 5 to 10 degrees above average for this time of year, then trend much colder through the remainder of the week. This will result in mostly sunny skies today with highs ranging from around 40 near the Canadian border to the low 50s south. Confidence is increasing in an interesting pattern where blocking upper high over Florida ejects a strong upper low from New Mexico, through the Eastern Plains, potentially stalling over eastern ND/northwestern MN, then ejecting into the Great Lakes Region.
High pressure remains over the region with slightly higher moisture supporting some stratocumulus to decorate the skies. Easterly winds become more southeasterly through Monday as center of high pressure shifts to the east. This will keep afternoon highs in the low to mid 80s through the period.
Moderate to fresh breezes linger across the Florida Keys nearshore waters while a weak high pressure system moves south off the South Carolina coast. From synopsis, high pressure lumbering southeastward off the Carolina coast will freshen breezes through the first half of the week.
350 PM EST Sun Nov 17 2024 High pressure nearly overhead will move off the coast tomorrow, allowing temperatures to warm significantly.
We will get to enjoy one more quiet day on Monday with mild highs once again in the low to mid 70s. An upper level low will be lifting out of the Baja of CA with a low deepening over the Plains.
------------------------------------------------------------------ Mid-level ridging continues to cross the area today, with continued dry weather.
A slightly warmer start this morning across the peninsula along with an increase in moisture especially in southern and interior areas.
1153 AM CST Sun Nov 17 2024 (Rest of Today) West-southwesterly flow in the mid-levels will gradually strengthen to 40-50 knots by late this afternoon, within the gradient between a partially cutoff upper low tracking eastward across northwestern Mexico and a subtropical ridge centered off the southwestern coast of the FL peninsula.
1157 AM CST Sun Nov 17 2024 (Today through Monday) High pressure centered over the Ohio Valley this morning will slide south and east through Monday. By Monday afternoon the high pressure will be centered off the Mid-Atlantic coast.
Tonight, with high pressure centered just offshore of the region by early Monday Morning, nearly calm winds area wide will allow sufficient radiational cooling for temps to fall to similar values as seen this morning, or perhaps even a bit lower (40s interior and 50s south and east).
Near-surface winds remain somewhat elevated as a weak high pressure system moves off the South Carolina coast.
- The next broad weather system sweeps across the state on Monday, bringing another round of snow mainly to the higher elevations of western and northern WY.
1257 PM EST Sun Nov 17 2024 High pressure will provide dry and mild conditions today. High level clouds will continue to spill across the area through this afternoon as the mid level ridge axis moves off to the east. Temperatures will be seasonably mild with highs ranging from the upper 50s north to the low to mid 60s in the south. This will advance the weak cold front southeast into our northern forecast area. On Monday, the weak frontal boundary eventually dissipates while another mid level ridge briefly bulges northward into the middle Ohio Valley and central Great Lakes. It will be warm with highs in the lower to mid 60s.
Cold front moves through mid-week, bringing the next chance for rain, then colder, drier, and windier conditions by the end of work week.
- Quiet and cooler weather in store for the rest of the week. The aforementioned boundary is also responsible for a modest temperature gradient across the state today, as temperatures ranging from the lower 50s in central Kansas to the upper 60s in southeast Kansas have been observed so far this afternoon. Big changes are in store for the region later this evening throughout the day on Monday as a strong mid/upper trough ejects out of the Southern Rockies into the Central Plains. Given the deep nature of this low, a very tight surface pressure gradient will support gusty southerly winds (40-50 mph) within the southern half of the extratropical cyclone.
Lows will struggle to drop much tonight with lows ranging from the lower to upper 60s. From here, all focus will turn to the incoming cold front and line of thunderstorms. A closed low that is currently situated over over far northern Mexico will become negatively tilted as it pushes into the Central Plains. An associated cold front will push through north central Texas and into our region during the day Monday and will be the feature that brings the potential for severe weather to the area on Monday in the form of a squall line.
A ridge of high pressure will briefly move over our region today before another low pressure system passes by to the north Monday, keeping temperatures on the cool side and setting the stage for persistent, gusty north winds down the lower Colorado River Valley.
(Rest of Today) West-southwesterly flow in the mid-levels will gradually strengthen to 40-50 knots by late this afternoon, within the gradient between a partially cutoff upper low tracking eastward across northwestern Mexico and a subtropical ridge centered off the southwestern coast of the FL peninsula.
922 AM PST Sun Nov 17 2024 Clear and cold this morning, with freezing temperatures in wind-sheltered portions of the inland valleys where areas of frost occurred until around 9 am.
(Rest of today through Monday) The weather pattern across South Florida does not change much tonight or Monday as mid level ridging remains over the Florida Peninsula along with a surface area of high pressure centered over the Southeast and western Atlantic. Low temperatures tonight will generally range from the lower 60s across the interior portions of Southwest Florida to the mid 60s across the rest of Southwest Florida. High temperatures on Monday will rise into the lower 80s across most of the region.
1150 AM CST Sun Nov 17 2024 - Temperatures will rebound into the low 40s to low 50s today and Monday, which is about 5 to 10 degrees above average for this time of year, then trend much colder through the remainder of the week. This will result in mostly sunny skies today with highs ranging from around 40 near the Canadian border to the low 50s south. Confidence is increasing in an interesting pattern where blocking upper high over Florida ejects a strong upper low from New Mexico, through the Eastern Plains, potentially stalling over eastern ND/northwestern MN, then ejecting into the Great Lakes Region.
A low-pressure system will continue to bring chances for precipitation to areas near the White Mountains today.
1015 AM EST Sun Nov 17 2024 A slightly warmer start this morning across the peninsula along with an increase in moisture especially in southern and interior areas.
834 AM MST Sun Nov 17 2024 KEY MESSAGES: - Today will be dry and much warmer than yesterday.
Ridging continues across the Southeast with dry weather. SW flow and ridging will result in warm temperatures 7 to 12 deg F above normal. Warm and dry weather continues on Monday with southwesterly flow aloft and ridging across the Southeast through the Tennessee Valley. Warm, moist air will begin to advect back into the region during the day ahead of the amplifying troughing across the Great Plains.
200 PM CST Sun Nov 17 2024 - Rain overnight and tomorrow with 1 to 3" - Rain tapering off through the day tomorrow - Dry and near normal temperatures for business week Satellite water vapor channel shows a large upper level low located across the Baja. Have the highest confidence of the higher amounts along and east of Highway 283.
1205 PM MST Sun Nov 17 2024 KEY MESSAGES: - Tonight there will be another round of moderate snow for a few hours as the cold front passes, especially in northwest Montana. The region remains in the warm sector ahead of an approaching cold front today. Tonight a cold front will move through from the northwest and cause even more lift, so we can expect an increase in precipitation overnight. The cold front will bring some cooler air and also since it's coming at night when it's already cooler, we expect snow levels to be down to the valley level across most of western Montana.
High pressure will continue to move across the area today before another area of low pressure passes north of the region tomorrow and tomorrow night, keeping temperatures cooler than normal.
639 PM EST Sun Nov 17 2024 High pressure nearly overhead will move off the coast tomorrow, allowing temperatures to warm significantly.
(This afternoon through Monday) High pressure and dry conditions will persist through tomorrow afternoon. The high and mid level clouds will begin to increase ahead of an approaching cold front late tomorrow afternoon.
542 PM CST Sun Nov 17 2024 - High pressure brings dry conditions tonight into Monday with lighter winds.
340 PM CST Sun Nov 17 2024 - High pressure brings dry conditions tonight into Monday with lighter winds.
A tranquil evening across the area with easterly flow around high pressure over the southeast states. The high will shift southeast out into the western Atlantic Ocean east of Florida on Monday with the low level flow shifting to a more southeasterly direction beginning the gradual moderating trend in temperatures and humidity.
Mid level trough, currently over northern Mexico, will lift northeast into far west Texas around midnight with potent vort max developing/ lifting NE into Kansas by late afternoon Monday.
Have also raised lows for tonight, as we have likely already seen the lowest temperatures of the night in the lower to mid 50s, and temperatures should subtly increase the remainder of the night. The cold front will stall-out over central Illinois tonight as the upper-level forcing becomes displaced too far east. Hi-res guidance remains fairly bullish with peak gusts, with the deterministic HRRR and NAMNest offering a broad area of 45+ mph gusts accompanying showers along the cold front Monday evening.
The cold front will stall-out over central Illinois tonight as the upper-level forcing becomes displaced too far east. Hi-res guidance remains fairly bullish with peak gusts, with the deterministic HRRR and NAMNest offering a broad area of 45+ mph gusts accompanying showers along the cold front Monday evening.
122 PM PST Sun Nov 17 2024 Clear and cold this morning, with freezing temperatures in wind-sheltered portions of the inland valleys where areas of frost occurred until around 9 am.
1251 AM EST Mon Nov 18 2024 - Widespread rain showers moving in late Monday - Unsettled/Showery Week Ahead and Turning Cooler With clouds gradually clearing over the area and winds becoming light and variable expect temperatures to quickly fall within a few degrees of dew points. The echoes over the NW section of the area will have a small chance as the lower clouds will maybe allow some of the virga from the mid clouds to make it to the ground. The ending of the rain chances will coincide with the passage of the weak cold front now across Central Wisconsin, and the passage of the upper short wave now across Nrn WI into MN. The upper low currently over Nrn Mexico will be lifted up to the NE quickly by the long wave trough coming in over the Western U.
(Today) A strengthening low pressure system will move out of the Desert Southwest today and eject northeastward across the Plains. Despite increasing cloud cover, a combination of warm air and moisture advection raises temperatures this afternoon into the low to mid 70s and dewpoints into the upper 50s.
- A slow moving cold front brings showers and a couple thunderstorms to the area tonight through tomorrow morning. - A much colder airmass settles in behind the cold front with highs below average and breezy conditions. Today a deep trof lifts northeast through the southern and central Plains and into the upper Midwest by tomorrow morning. Warmer temperatures continue today and tomorrow with highs in the upper 60s to lower 70s. Tonight ahead of the approaching cold front is a line of showers and isolated thunderstorms that moves through the area decaying as it moves east.
As of 2030 MST, the cold front is currently arcing from the ID-OR border near Ontario, down into southeast Oregon near the Steens Mountains, with heavy precipitation and gusty northwest winds behind the front. Cold front to generate a period of MVFR/IFR/LIFR from 03Z-07Z across the area. Cold front to impact the terminal between 0330Z and 0430Z with a wind shift to the NW and continued strong gusts in excess of 30 kt.
An upper-level composite analysis this evening reveals a deep layer mean anticyclone centered over the southeastern Gulf of Mexico, with associated deep anticyclonic flow over the Florida Keys and adjacent coastal waters. This high pressure cell is driving easterly gradient flow across the Florida Keys, with incoming air trajectories rooted in modified continental polar air. Current air temperatures in most Keys island communities are holding steady in the upper 70s, following afternoon high temperatures in the lower 80s. A Small Craft Advisory remains in effect overnight for zones west of the Seven Mile Bridge, adjacent to the lower Keys and including Dry Tortugas National Park. Small Craft Should Exercise Caution overnight across zones east of the Seven Mile Bridge, adjacent to the middle and upper Keys, including Florida Bay.
121 AM EST Mon Nov 18 2024 High pressure nearly overhead will move off the coast tomorrow, allowing temperatures to warm significantly.
1032 PM EST Sun Nov 17 2024 High pressure nearly overhead will move off the coast tomorrow, allowing temperatures to warm significantly.
pdf High pressure at the surface and aloft will remain over the area through Tonight.
Winds shift to the W/NW behind the departing front, allowing for cooler and drier air to filter into the region.
A 40-60KT jet in the low to mid levels has the potential to mix down to the surface today, which would result in wind gusts of 40-45 MPH in some locations.
1051 PM EST Sun Nov 17 2024 Warmer night expected, but like outlined below, patchy fog is possible especially over river ways. Ridging continues across the Southeast with dry weather. SW flow and ridging will result in warm temperatures 7 to 12 deg F above normal. Warm and dry weather continues on Monday with southwesterly flow aloft and ridging across the Southeast through the Tennessee Valley. Warm, moist air will begin to advect back into the region during the day ahead of the amplifying troughing across the Great Plains.
1119 PM CST Sun Nov 17 2024 SHV radar this evening showcases light to moderate reflectivity returns exiting the NW zones of the Four State Region as a deep trough continues to dig across northern Mexico. However, temps are a few degrees warmer at this hour when looking at the sfc hourlies.
639 AM CST Mon Nov 18 2024 (Today through Tuesday Night) An upper low is located in southwest Texas this morning with an upper high over the eastern Gulf of Mexico. The upper low will move into Kansas this afternoon with strong southwest flow ahead of it. The upper low moves into Minnesota by Tuesday morning with southwest flow continuing over Arkansas which continues through Tuesday. High pressure moves into the state for Tuesday with drier and cooler air.
- Wet, warmer and breezy today with widespread (90-100%) rain persisting into this evening.
Temperatures will also drop rapidly behind the front, with below- freezing temperatures across all of Southeast Idaho by later this morning. Otherwise, Tuesday will be fairly quiet as a transient ridge builds in from the west ahead of a potent low approaching the PNW coast which will bring our next atmospheric river event.
247 AM MST Mon Nov 18 2024 KEY MESSAGES: - Cold front today will bring rain at times. The highest precipitation amounts will be along the North Dakota border this afternoon and evening. WEATHER PATTERN OVERVIEW: A cold front will move across the region today with rain at times. An upper level low develops over southwest Saskatchewan Tuesday morning and clips the NE corner of Montana as it moves to North Dakota during the day on Tuesday.
Cooler temperatures to start the week then warming up to above normal late in the work week as high pressure aloft builds over the area. Water vapor imagery this morning showed SE AZ on the back side of an upper low near El Paso. Below normal highs Tuesday under zonal flow aloft then warming up to close out the work week as high pressure builds over the area.
Slightly below normal temperatures will prevail through Tuesday before strong high pressure builds into region during the middle part of the week.
407 AM EST Mon Nov 18 2024 - Rain Developing Late Today - Continued Unsettled and Turning Cooler Mid to Late Week We issued a Dense Fog Advisory for the entire cwa until 10 am. A band of rain will develop southeast of the low near the warm front as isentropic lift strengthens and condensation pressure deficits fall to less than 10 mb. Models have been consistent in showing this wave for several days as it moves north and phases with a northern stream upper low. - Continued Unsettled and Turning Cooler Mid to Late Week The same fcst challenges still exist with the mid to late week system.
(Today through Tuesday night) Scattered to broken cirrus continues to filter over the area as upper level moisture spills over a ridge of high pressure over the SE US. In its wake, a broad upper trough will cover the W 2/3 of the country. A cold front will approach the area from the NW tonight, with widespread showers spreading into the area from the W late tonight and early Tuesday morning. Low temperatures Tuesday night will range from the mid 50s to the lower 60s across the area.
The lower level flow will turn weakly offshore for Tuesday with locally gusty east to northeast winds along and near the coastal slopes of the mountains during the morning with gusts to 35 mph or less. A weak coastal eddy will bring patchy low clouds to the coast for early this morning with the low clouds spreading into portions of the inland valleys early Tuesday as the marine layer deepens.
515 AM CST Mon Nov 18 2024 (Today) A strengthening low pressure system will move out of the Desert Southwest today and eject northeastward across the Plains. Despite increasing cloud cover, a combination of warm air and moisture advection raises temperatures this afternoon into the low to mid 70s and dewpoints into the upper 50s.
644 AM EST Mon Nov 18 2024 - Rain Developing Late Today - Continued Unsettled and Turning Cooler Mid to Late Week We issued a Dense Fog Advisory for the entire cwa until 10 am. A band of rain will develop southeast of the low near the warm front as isentropic lift strengthens and condensation pressure deficits fall to less than 10 mb. Models have been consistent in showing this wave for several days as it moves north and phases with a northern stream upper low. - Continued Unsettled and Turning Cooler Mid to Late Week The same fcst challenges still exist with the mid to late week system.