Aikyam-Lab/Synoptic-Bench huggingface dataset:
618 PM EST Sat Nov 18 2023 High pressure builds from the west through the weekend. Plenty of sunshine is anticipated for Sunday, with temperatures ranging from the mid 50s across the lowlands, into the lower 40s highest peaks of our northeast mountains.
741 PM CST Sat Nov 18 2023 High pressure is in control with clear skies across the area.
636 PM EST Sat Nov 18 2023 Aviation Very limited concerns in the short term with high pressure in place the bulk of the time. Lows tonight will drop to a few degrees either side of freezing and rising into the upper 40s to low 50s on Sunday.
624 PM EST Sat Nov 18 2023 (This afternoon through Sunday) The longwave trough axis will continue to move across the Florida Peninsula this afternoon and overnight. As the morning sounding confirmed, deep layer moisture is not as present to support much convection, there will be limited moisture with the trough, but enough for today's cloud coverage and isolated showers, further supported by the low-level moisture from the Atlantic. Any showers will be over the waters early Sunday as the trough exits. By mid-day Sunday, the trough axis will over the Atlantic and passing the Bahamas.
933 PM EST Sat Nov 18 2023 High pressure will settle into the Ohio Valley tonight and Sunday.
Quiet conditions are expected as high pressure builds into the area through the day. Tomorrow our area will remain dry as high pressure shuffles over the area. High temperatures tomorrow will be similar to day in the high 60 to the lower 70 range.
Rather uneventful weather is expected through the remainder of the weekend as an expansive area of high pressure remains the dominate weather feature across the central CONUS. The combination of clear skies and a dry airmass under this high will continue to support cool overnight temperatures tonight (lows primarily in the 30s) followed by another day of mild daytime temperatures into the lower to middle 50s Sunday afternoon.
502 PM CST Sat Nov 18 2023 High pressure will keep things dry and seasonable through the weekend.
Breezy conditions can be expected this afternoon and again on Sunday for the eastern counties follow by cooler temperatures for the new week. Scattered showers this afternon mainly across eastern Pinal and Pima counties as a cold front pushes E-SE across the forecast area. Sunday: Dry most areas in wake of upper level trof moving east. Snow levels above 8000 feet with up to a inch of accumulation at the highest peaks.
The early morning water vapor satellite channel shows a small upper level trof moving across the greater region. The highest chances (60 to 80%) will be kept across the eastern zones this morning and into the rest of today.
1235 AM EST Sun Nov 19 2023 As high pressure pushes in from the west, a front will cross the area, bringing in drier and cooler air for Sunday and Monday. Sunday through Sunday night is expected to remain dry and slightly cooler as high pressure builds into the area from the northeast. Deepening upper trough will still be off to the west of the region into Monday night, but increasing warm advection out of the south above 850 mb with add additional isentropic lift and clouds throughout the night.
1110 PM CST Sat Nov 18 2023 High pressure will keep things dry and seasonable through the weekend. Temps have fallen quickly across the region and are in the 30s in most areas with dew points in the low to mid 20s in most areas.
1023 PM EST Sat Nov 18 2023 High pressure will maintain fair and cool conditions across central PA through Monday.
109 AM EST Sun Nov 19 2023 Dry high pressure will build into the area through early week with rain chances increasing from the next low pressure system Tue thru Wed. Drier and slightly cooler conditions are expected by Thanksgiving as weak high pressure prevails. Quiet weather with light north winds and clear skies on tap for tonight as an event-less cold front slides through this evening. Lows in the low 40s will feel chilly after this morning's 60s but such values are within a few degrees of climatology. Lows Sunday night in the low 40s, with potential for upper 30s across northern parts of CWA.
1238 AM EST Sun Nov 19 2023 (This afternoon through Sunday) The longwave trough axis will continue to move across the Florida Peninsula this afternoon and overnight. As the morning sounding confirmed, deep layer moisture is not as present to support much convection, there will be limited moisture with the trough, but enough for today's cloud coverage and isolated showers, further supported by the low-level moisture from the Atlantic. Any showers will be over the waters early Sunday as the trough exits. By mid-day Sunday, the trough axis will over the Atlantic and passing the Bahamas.
Lows will tap out near and just below freezing in NW AL and our TN counties and in the mid 30s elsewhere. Those going our late tonight and early tomorrow should definitely note to grab a jacket as lows will be 15-20 degrees cooler than last night.
1237 AM EST Sun Nov 19 2023 High pressure will settle into the Ohio Valley tonight and Sunday. The high will move east of the region Sunday night into Monday.
Water vapor imagery highlights a lengthy negatively tilted long wave trough extending from the central Appalachians to the southeastern Bahamas. Moderate breezes tonight will diminish Sunday and Sunday night as high pressure slides eastward across the eastern United States. As the high continues moving into the western North Atlantic Monday and Monday night, breezes will veer to the northeast to east and freshen.
200 AM EST Sun Nov 19 2023 Short Term/Marine - Clear today and tonight Surface analysis shows a weak cold front moving across the lake early this morning. High pressure will quickly build in behind it resulting in clear skies today and tonight. - Increasing clouds Monday Low pressure approaching from the Red River Valley will spread clouds and rain toward Lower Michigan Monday.
214 AM CST Sun Nov 19 2023 Key message: * Another quiet weather day today with slightly above normal temperatures No particularly noteworthy weather is expected through Sunday night as a high pressure ridge remains stationed over the region. This increasing cloud cover and slightly higher dew points should result in milder low temperatures Sunday night, likely ranging from the mid 30s to the low 40s.
1152 PM CST Sat Nov 18 2023 (This evening through Monday) Afternoon visible satellite imagery shows clear sky conditions across the state as a cold front continues to push south of the area and sfc ridging builds in from the north. Sfc ridging will shift eastward beginning on Sunday which will bring E/Srly flow back to the state. H500 flow aloft will turn out of the SW Sunday afternoon as a developing cyclone moves toward the Central/Southern Plains by Monday morning. A corresponding sfc cyclone is expected to develop over Oklahoma before moving east across the state on Monday. A trailing cold front will approach the ArkLaTex by Monday afternoon while an advancing warm front ushers moist air northward.
1252 AM CST Sun Nov 19 2023 Key message: * Another quiet weather day today with slightly above normal temperatures No particularly noteworthy weather is expected through Sunday night as a high pressure ridge remains stationed over the region. This increasing cloud cover and slightly higher dew points should result in milder low temperatures Sunday night, likely ranging from the mid 30s to the low 40s.
The first bit of evidence of those changes will occur this evening with increasing high clouds as a lead wave moves out over the High Plains.
This afternoon, shallow ridging aloft was moving over North Dakota, with weak flow both aloft and at the surface. Temperatures will be a bit cooler compared to today, with highs in the mid 40s to lower 50s. The previously mentioned closed low is expected to wrap up and stay south of the forecast area, but still close enough for a deformation band extending north of the low to spread into south central North Dakota, bringing a chance for rain showers starting Sunday evening. As the low pivots east, so do precipitation chances, shifting east into the James River Valley through Monday afternoon (20% chance). A cold front moving through later in the day on Monday will lead to strong winds from cold air advection and modest pressure rises.
Expect today's highs to be warmer compared to yesterday as a result of westerly surface winds.
(Today through Monday) Dry high pressure will remain over the area through the rest of the weekend. After a chilly start in the low to mid 30s, temps will warm nicely into the lower 60s under mostly sunny skies. For tonight, the high pressure center will move off to the east.
This feature is supported by the first of several weak mid-level short wave troughs tracking from the southern Great Basin toward Oklahoma. This upper-low will phase with a larger central plains low through Monday morning with the consolidated trough moving through central Oklahoma after sunrise Monday.
159 AM MST Sun Nov 19 2023 Expect a relatively pleasant and mild Sunday but by the afternoon and evening hours a dry cold front will move across Montana. Cooler air will move in but not a drastic drop with highs still remaining on the warm end of mid November averages.
The ongoing activity is shifting to the east but is having to overcome substantial dry air in the low to mid levels.
1230 AM EST Sun Nov 19 2023 Aviation Very limited concerns in the short term with high pressure in place the bulk of the time. Lows tonight will drop to a few degrees either side of freezing and rising into the upper 40s to low 50s on Sunday.
High pressure will then maintain control over the area through Monday night, with rain free conditions and temperatures running slightly above normal, with afternoon highs in the upper 70s to mid 80s.
249 AM CST Sun Nov 19 2023 High pressure over the region will provide one more day of fair weather across central Illinois. Cloud cover will increase through the day as low pressure takes shape over the Great Plains.
Weak upper level ridging and a very dry environment will help limit virtually all clouds over the forecast area into Sunday. Lows tonight will be slightly warmer than last night. A very weak back door type of cold front will move across the area by late Sunday with winds eventually becoming northeast.
Water vapor imagery this morning reveals a short wave trough lifting east-northeast out of Colorado, just ahead and a part of, the larger western trough axis through the Intermountain West. Ahead of the rainfall and increasing cloud cover, temperatures will be seasonably warm, reaching the lower to mid 50s for highs. Rain chances will increase overnight, especially through midnight, as a weak short wave trough rounds the base of the parent trough and lifts northeast out of Oklahoma and into the region through the early Monday morning.
Temperatures cool into the 40s and 50s across the region by Monday morning ahead of an incoming cold front.
At the surface, a weak boundary is dropping through northern Michigan at this hour, with high pressure centered over northern Minnesota behind the front. Further aloft, a deep upper low over northeast Canada is being forced eastward as ridging builds across the northern Plains. As high pressure continues to build in tonight, those same areas that see sun today will remain mainly clear overnight, setting up good radiating conditions. Much of northeast lower and eastern upper will dip in to the lower 20s overnight, with some teens in the typical cool spots. Northwest lower will be a bit warmer but will still reach the 20s by daybreak Monday.
1047 PM CST Sat Nov 18 2023 High pressure is in control with clear skies across the area. (This afternoon through Monday Night) Nice conditions this afternoon across the mid state as high pressure is beginning to build in. 20 inches of rainfall over the past 48 hrs with most areas on the lower end. That system will be in the form of a strong cold front with strong UL support.
Temperatures overnight into Monday morning should be a few degrees warmer than early this morning.
(Today through Monday) A drier, more stable airmass will build over the region today into Monday as a longwave mid-level trough axis moves from the Bahamas east into the Atlantic. The only area with the potential for rain today will be the Atlantic waters due to the available shallow moisture and proximity to the trough. As the trough exits and drier air arrives, those chances will erode by Monday.
Cronce (Issued 255 PM CST Sat Nov 18 2023) Tonight through Sunday night: High pressure continues to dominate through Sunday, with generally clear skies and a few passing high clouds throughout the weekend. A developing low pressure system in the central Great Plains will lead to slowly increasing cloud cover from west to east late Sunday afternoon through Sunday night, as well as increasing easterly winds across the CWA Sunday night. Plenty of sunshine and easterly winds will lead to highs in the lower 50s on Sunday.
359 AM EST Sun Nov 19 2023 High pressure remains over the Ohio Valley today and will move east of the region Sunday night into Monday.
231 AM MST Sun Nov 19 2023 A longwave trof over the western U. Precipitation will be truncated as moisture moves over the higher terrain, with downslope effects limiting moisture in the lower elevations east of the divide.
- Above normal temperatures today, then increasing clouds and slightly cooler Monday.
Currently an upper level low sits over Nebraska with a broad trough to the west and south of it. This low system will increase clouds today, mainly higher level clouds.
Sustained winds of 15-20 kts (with gusts of 25-30 kts) quickly ramp up across most of the plains but even stronger winds are found across the higher elevations. A second impulse in the larger upper trough moves overhead between 06 and 12z Monday which should keep winds elevated through at least late Sunday night. As a result, have extended the Wind Warning/Advisories through at 09z Monday but advisory-criteria winds may continue through at least 15z in the higher elevations. Accompanying the second upper level impulse is a true cold front set to push through on Monday. Between the frontal progression and losing the strong downslope wind component we'll see today, temperatures will be about 10-15 degrees cooler on Monday.
High pressure at the surface and ridging aloft will remain in control of the weather across the forecast area for much of today.
A cold front passing over our region this morning will widespread strong north winds across our region that will persist tonight and Monday.
Winds will gradually shift to the south, then southwest heading into Monday as a cold front approaches.
The upper trough that was just off the coast this time yesterday has now shifted inland and is east of the district over the Great Basin. The kicker trough is diving southeast over northern CA and will accelerate today ending up over the Four Corners region this afternoon. Upper ridging over the eastern Pacific will begin to build inland today.
537 AM CST Sun Nov 19 2023 (Today through Monday) Dry high pressure will remain over the area through the rest of the weekend. After a chilly start in the low to mid 30s, temps will warm nicely into the lower 60s under mostly sunny skies. For tonight, the high pressure center will move off to the east.
Cooler weather will stick with us through Monday before high pressure builds across the region through mid-week.
618 AM EST Sun Nov 19 2023 High pressure remains over the Ohio Valley today and will move east of the region Sunday night into Monday.
546 AM CST Sun Nov 19 2023 - Dry and slightly warmer today with plenty of sunshine.
518 AM CST Sun Nov 19 2023 Key message: * Another quiet weather day today with slightly above normal temperatures No particularly noteworthy weather is expected through Sunday night as a high pressure ridge remains stationed over the region. This increasing cloud cover and slightly higher dew points should result in milder low temperatures Sunday night, likely ranging from the mid 30s to the low 40s.
609 AM EST Sun Nov 19 2023 (Today through Monday) A drier, more stable airmass will build over the region today into Monday as a longwave mid-level trough axis moves from the Bahamas east into the Atlantic. The only area with the potential for rain today will be the Atlantic waters due to the available shallow moisture and proximity to the trough. As the trough exits and drier air arrives, those chances will erode by Monday.
Drier and warmer conditions return by the middle of the week. A longwave trough continues to move through the Intermountain West today. However, orographic forcing and colder temperatures will allow for some of the higher elevations near the Kaibab Plateau, Chuska Mountains and White Mountains to get around 2-4 inches. However, the highest mountain peaks above the inversion will likely see gusty winds continue through the overnight. Behind the trough, dry and cold air sets in over Arizona. Monday morning lows should be in the 10s F to low 20s F over the higher terrain, with mid 30s F to mid 40s F over the lower elevations.
Also visible on satellite imagery is a deep but narrow trough of low pressure oriented along the west coast of the U. This trough will continue to move across the Pacific Northwest this morning, and into the Northern Rockies later today. As the trough moves inland, it will broaden, pushing most of the moisture and energy associated with an upper level jet streak to the south, into the Great Basin. A cold front will accompany this system, so gusty westerly winds will arrive with the precipitation. Two to six inches in the higher terrain will accumulate by Monday. A ridge of high pressure will build back over the Northern Rockies on Monday.
A cold front will approach from the north late tonight and move across the area tomorrow.
Due to elevated winds, inland locations on the larger islands have not seen any radiational cooling as they have the past few nights, and temperatures are in the lower 70s along the island chain this morning. The current northerly steering flow bringing in this airmass will gradually shift to the northeast to east beginning this evening as a low level ridge across the eastern U.
531 AM CST Sun Nov 19 2023 Key Messages: 1) Sunny today with highs in the 40s 2) A cold front slides across the Northland beginning Monday night.
Temperatures are expected mostly in the low 80s across the region. (Today through Monday) A drier, more stable airmass will build over the region today into Monday as a longwave mid-level trough axis moves from the Bahamas east into the Atlantic. The only area with the potential for rain today will be the Atlantic waters due to the available shallow moisture and proximity to the trough. As the trough exits and drier air arrives, those chances will erode by Monday.
524 AM CST Sun Nov 19 2023 Key Messages: * Warmer than normal high temperatures continue into Monday. Upper ridging shifts east as a trough digs into the Plains. While the upper trough and embedded low will bring some mild caa, H85 temps remain above zero through Monday. Clouds and rain along with cooler H85 temps on Monday should hold highs in the 40s for most locations. Good mixing will set up west river as winds shift to the northwest in the afternoon behind the low. High pressure over Montana will help establish the pressure gradient for north central to see gusts to 35 mph. Given the warm daytime temperatures and cloud cover overnight allowing temps to remain above freezing, this event is expected to be all rain.
Snow showers taper off thru the day with strong winds persisting as a robust cold front continues thru the region.
331 AM CST Sun Nov 19 2023 - Dry and slightly warmer today with plenty of sunshine.
Clear skies early will give way to increasing mid and high level clouds by mid afternoon, with winds turning easterly as high pressure over Ontario starts to move east and low pressure develops in the High Plains in association with an upper level trough.
*Cooler on Monday with widespread rain developing. Monday A deep upper trough digging into the Southwest U. will shift eastward early in the week as a mid-level closed low tracks across the Mid to Upper Mississippi Valley.
432 AM CST Sun Nov 19 2023 Key Messages: * Warmer than normal high temperatures continue into Monday. Upper ridging shifts east as a trough digs into the Plains. While the upper trough and embedded low will bring some mild caa, H85 temps remain above zero through Monday. Clouds and rain along with cooler H85 temps on Monday should hold highs in the 40s for most locations. Good mixing will set up west river as winds shift to the northwest in the afternoon behind the low. High pressure over Montana will help establish the pressure gradient for north central to see gusts to 35 mph. Given the warm daytime temperatures and cloud cover overnight allowing temps to remain above freezing, this event is expected to be all rain.
Ridging begins to dominate the forecast pattern as it builds from the southwest and extending into the Pacific NW.
504 AM CST Sun Nov 19 2023 High pressure over the region will provide one more day of fair weather across central Illinois. Cloud cover will increase through the day as low pressure takes shape over the Great Plains.
A cold front passing over our region this morning will bring widespread strong north winds across our region that will persist tonight and Monday.
Conditions are clear and calm early this morning with high pressure over the region. This occurs as a deep low pressure system moves out over the Plains. An increase in 1000-850 mb thicknesses, combined with sunshine, will result in warmer afternoon temperatures than yesterday. As an upper level trough evolves eastward over the Plains tonight, mid and high clouds will increase in coverage and thicken into the early hours of Monday. Our coolest, sheltered valleys may still bottom out in the low 30s. Closed upper low over the central/southern Plains will lift NE, roughly along the old Route 66 corridor on Monday night, reaching Chicago Tue morning. Could see enough isentropic lift with a weak warm front for scattered showers during the day on Monday.
(Today and tonight) It's a much calmer night as the trough moves out of the region and a ridge builds. Recent model updates have reduced the gradient between the high and low pressures resulting in some reduction in the strongest winds, but several areas will see 15 to 30 mph gust this afternoon and into the late night with higher elevations seeing infrequent gusts above 45 mph into the late night.
Aloft we have a short wave pulling away from Florida with weak ridging early this week. High pressure dominates and the next cold front does not arrive until Thanksgiving Day.
High pressure at the surface will build over the area tonight and promote an offshore wind flow regime. Potential for frost and freezing temperatures will increase again for the coastal areas. Dry weather and slightly below normal temperatures are forecast for the Thanksgiving holiday weekend as another blocking flow pattern develops. Given the recent rainfall and building high pressure, UKI is climatologically favored for radiational fog formation overnight or as late as early Monday morning. Northwesterly winds will continue to trend down through the day, but briefly building high pressure will contribute to a quick increase in northerly winds to 20 to 25 kts late this afternoon through early Monday morning.
Today's weather system brought freezing rain in the morning and mountain-level snow, but it is transitioning to drier conditions this afternoon with increased winds. Moisture profiles indicate descending drier air from aloft during the evening and overnight, though a layer of moisture may linger in the lower levels, hinting at a possible return of low cloud cover overnight.